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-rw-r--r--thirdparty/README.md14
-rw-r--r--thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp24
-rw-r--r--thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp24
-rw-r--r--thirdparty/etc2comp/patches/fix-rgba8-max-channels.patch224
-rw-r--r--thirdparty/jpeg-compressor/jpgd.cpp6254
-rw-r--r--thirdparty/jpeg-compressor/jpgd.h634
-rw-r--r--thirdparty/jpeg-compressor/jpgd_idct.h462
-rw-r--r--thirdparty/jpeg-compressor/patches/fix-msvc2017-build.patch31
-rw-r--r--thirdparty/mbedtls/include/mbedtls/check_config.h21
-rw-r--r--thirdparty/mbedtls/include/mbedtls/version.h8
-rw-r--r--thirdparty/mbedtls/library/ecp.c28
-rw-r--r--thirdparty/mbedtls/library/ssl_cli.c16
-rw-r--r--thirdparty/mbedtls/library/ssl_tls.c34
-rw-r--r--thirdparty/mbedtls/library/x509.c2
-rw-r--r--thirdparty/misc/cubemap_coeffs.h28
-rw-r--r--thirdparty/vulkan/android/vk_mem_alloc.cpp8
-rw-r--r--thirdparty/vulkan/vk_enum_string_helper.h2
17 files changed, 4381 insertions, 3433 deletions
diff --git a/thirdparty/README.md b/thirdparty/README.md
index b52b68fe47..3c6885fd1a 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -182,12 +182,14 @@ Patches in the `patches` directory should be re-applied after updates.
## jpeg-compressor
- Upstream: https://github.com/richgel999/jpeg-compressor
-- Version: 1.04
+- Version: 2.00 (1eb17d558b9d3b7442d256642a5745974e9eeb1e, 2020)
- License: Public domain
Files extracted from upstream source:
-- `jpgd.{c,h}`
+- `jpgd*.{c,h}`
+
+Patches in the `patches` directory should be re-applied after updates.
## libogg
@@ -302,7 +304,7 @@ changes are marked with `// -- GODOT --` comments.
## mbedtls
- Upstream: https://tls.mbed.org/
-- Version: 2.16.5
+- Version: 2.16.6
- License: Apache 2.0
File extracted from upstream release tarball (`-apache.tgz` variant):
@@ -360,6 +362,10 @@ Collection of single-file libraries used in Godot components.
* Upstream: https://sourceforge.net/projects/polyclipping
* Version: 6.4.2 + Godot changes (added optional exceptions handling)
* License: BSL-1.0
+- `cubemap_coeffs.h`
+ * Upstream: https://research.activision.com/publications/archives/fast-filtering-of-reflection-probes
+ File coeffs_const_8.txt
+ * License: MIT
- `fastlz.{c,h}`
* Upstream: https://github.com/ariya/FastLZ
* Version: git (f121734, 2007)
@@ -570,6 +576,8 @@ Files extracted from upstream source:
`vk_enum_string_helper.h` is taken from the matching `Vulkan-ValidationLayers`
SDK release: https://github.com/KhronosGroup/Vulkan-ValidationLayers/blob/master/layers/generated/vk_enum_string_helper.h
+Includes custom change to disable MSVC pragma, might be upstreamed via:
+https://github.com/KhronosGroup/Vulkan-ValidationLayers/pull/1666
`vk_mem_alloc.h` is taken from https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator
Version: 2.3.0
diff --git a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
index 5656556db9..5c7ebed788 100644
--- a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
+++ b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
@@ -508,7 +508,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
- iMinRed1 = 15;
+ iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -519,7 +519,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
- iMinGreen1 = 15;
+ iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -530,7 +530,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
- iMinBlue1 = 15;
+ iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -545,7 +545,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
- iMinRed2 = 15;
+ iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -556,7 +556,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
- iMinGreen2 = 15;
+ iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -567,7 +567,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
- iMinBlue2 = 15;
+ iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
@@ -761,7 +761,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
- iMinRed1 = 15;
+ iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -772,7 +772,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
- iMinGreen1 = 15;
+ iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -783,7 +783,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
- iMinBlue1 = 15;
+ iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -798,7 +798,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
- iMinRed2 = 15;
+ iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -809,7 +809,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
- iMinGreen2 = 15;
+ iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -820,7 +820,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
- iMinBlue2 = 15;
+ iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
diff --git a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
index ba2b42fb05..b94b64e68c 100644
--- a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
+++ b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
@@ -847,7 +847,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
- iMinRed1 = 15;
+ iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -858,7 +858,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
- iMinGreen1 = 15;
+ iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -869,7 +869,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
- iMinBlue1 = 15;
+ iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -884,7 +884,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
- iMinRed2 = 15;
+ iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -895,7 +895,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
- iMinGreen2 = 15;
+ iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -906,7 +906,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
- iMinBlue2 = 15;
+ iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
@@ -1108,7 +1108,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
- iMinRed1 = 15;
+ iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -1119,7 +1119,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
- iMinGreen1 = 15;
+ iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -1130,7 +1130,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
- iMinBlue1 = 15;
+ iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -1145,7 +1145,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
- iMinRed2 = 15;
+ iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -1156,7 +1156,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
- iMinGreen2 = 15;
+ iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -1167,7 +1167,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
- iMinBlue2 = 15;
+ iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
diff --git a/thirdparty/etc2comp/patches/fix-rgba8-max-channels.patch b/thirdparty/etc2comp/patches/fix-rgba8-max-channels.patch
new file mode 100644
index 0000000000..ea9b5640b6
--- /dev/null
+++ b/thirdparty/etc2comp/patches/fix-rgba8-max-channels.patch
@@ -0,0 +1,224 @@
+diff --git a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
+index 5656556db9..5c7ebed788 100644
+--- a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
++++ b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8.cpp
+@@ -508,7 +508,7 @@ namespace Etc
+ int iMaxRed1 = iColor1Red + (int)a_uiRadius;
+ if (iMaxRed1 > 15)
+ {
+- iMinRed1 = 15;
++ iMaxRed1 = 15;
+ }
+
+ int iMinGreen1 = iColor1Green - (int)a_uiRadius;
+@@ -519,7 +519,7 @@ namespace Etc
+ int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
+ if (iMaxGreen1 > 15)
+ {
+- iMinGreen1 = 15;
++ iMaxGreen1 = 15;
+ }
+
+ int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
+@@ -530,7 +530,7 @@ namespace Etc
+ int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
+ if (iMaxBlue1 > 15)
+ {
+- iMinBlue1 = 15;
++ iMaxBlue1 = 15;
+ }
+
+ int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
+@@ -545,7 +545,7 @@ namespace Etc
+ int iMaxRed2 = iColor2Red + (int)a_uiRadius;
+ if (iMaxRed2 > 15)
+ {
+- iMinRed2 = 15;
++ iMaxRed2 = 15;
+ }
+
+ int iMinGreen2 = iColor2Green - (int)a_uiRadius;
+@@ -556,7 +556,7 @@ namespace Etc
+ int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
+ if (iMaxGreen2 > 15)
+ {
+- iMinGreen2 = 15;
++ iMaxGreen2 = 15;
+ }
+
+ int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
+@@ -567,7 +567,7 @@ namespace Etc
+ int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
+ if (iMaxBlue2 > 15)
+ {
+- iMinBlue2 = 15;
++ iMaxBlue2 = 15;
+ }
+
+ for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
+@@ -761,7 +761,7 @@ namespace Etc
+ int iMaxRed1 = iColor1Red + (int)a_uiRadius;
+ if (iMaxRed1 > 15)
+ {
+- iMinRed1 = 15;
++ iMaxRed1 = 15;
+ }
+
+ int iMinGreen1 = iColor1Green - (int)a_uiRadius;
+@@ -772,7 +772,7 @@ namespace Etc
+ int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
+ if (iMaxGreen1 > 15)
+ {
+- iMinGreen1 = 15;
++ iMaxGreen1 = 15;
+ }
+
+ int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
+@@ -783,7 +783,7 @@ namespace Etc
+ int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
+ if (iMaxBlue1 > 15)
+ {
+- iMinBlue1 = 15;
++ iMaxBlue1 = 15;
+ }
+
+ int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
+@@ -798,7 +798,7 @@ namespace Etc
+ int iMaxRed2 = iColor2Red + (int)a_uiRadius;
+ if (iMaxRed2 > 15)
+ {
+- iMinRed2 = 15;
++ iMaxRed2 = 15;
+ }
+
+ int iMinGreen2 = iColor2Green - (int)a_uiRadius;
+@@ -809,7 +809,7 @@ namespace Etc
+ int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
+ if (iMaxGreen2 > 15)
+ {
+- iMinGreen2 = 15;
++ iMaxGreen2 = 15;
+ }
+
+ int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
+@@ -820,7 +820,7 @@ namespace Etc
+ int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
+ if (iMaxBlue2 > 15)
+ {
+- iMinBlue2 = 15;
++ iMaxBlue2 = 15;
+ }
+
+ for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
+diff --git a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
+index ba2b42fb05..b94b64e68c 100644
+--- a/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
++++ b/thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp
+@@ -847,7 +847,7 @@ namespace Etc
+ int iMaxRed1 = iColor1Red + (int)a_uiRadius;
+ if (iMaxRed1 > 15)
+ {
+- iMinRed1 = 15;
++ iMaxRed1 = 15;
+ }
+
+ int iMinGreen1 = iColor1Green - (int)a_uiRadius;
+@@ -858,7 +858,7 @@ namespace Etc
+ int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
+ if (iMaxGreen1 > 15)
+ {
+- iMinGreen1 = 15;
++ iMaxGreen1 = 15;
+ }
+
+ int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
+@@ -869,7 +869,7 @@ namespace Etc
+ int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
+ if (iMaxBlue1 > 15)
+ {
+- iMinBlue1 = 15;
++ iMaxBlue1 = 15;
+ }
+
+ int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
+@@ -884,7 +884,7 @@ namespace Etc
+ int iMaxRed2 = iColor2Red + (int)a_uiRadius;
+ if (iMaxRed2 > 15)
+ {
+- iMinRed2 = 15;
++ iMaxRed2 = 15;
+ }
+
+ int iMinGreen2 = iColor2Green - (int)a_uiRadius;
+@@ -895,7 +895,7 @@ namespace Etc
+ int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
+ if (iMaxGreen2 > 15)
+ {
+- iMinGreen2 = 15;
++ iMaxGreen2 = 15;
+ }
+
+ int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
+@@ -906,7 +906,7 @@ namespace Etc
+ int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
+ if (iMaxBlue2 > 15)
+ {
+- iMinBlue2 = 15;
++ iMaxBlue2 = 15;
+ }
+
+ for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
+@@ -1108,7 +1108,7 @@ namespace Etc
+ int iMaxRed1 = iColor1Red + (int)a_uiRadius;
+ if (iMaxRed1 > 15)
+ {
+- iMinRed1 = 15;
++ iMaxRed1 = 15;
+ }
+
+ int iMinGreen1 = iColor1Green - (int)a_uiRadius;
+@@ -1119,7 +1119,7 @@ namespace Etc
+ int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
+ if (iMaxGreen1 > 15)
+ {
+- iMinGreen1 = 15;
++ iMaxGreen1 = 15;
+ }
+
+ int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
+@@ -1130,7 +1130,7 @@ namespace Etc
+ int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
+ if (iMaxBlue1 > 15)
+ {
+- iMinBlue1 = 15;
++ iMaxBlue1 = 15;
+ }
+
+ int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
+@@ -1145,7 +1145,7 @@ namespace Etc
+ int iMaxRed2 = iColor2Red + (int)a_uiRadius;
+ if (iMaxRed2 > 15)
+ {
+- iMinRed2 = 15;
++ iMaxRed2 = 15;
+ }
+
+ int iMinGreen2 = iColor2Green - (int)a_uiRadius;
+@@ -1156,7 +1156,7 @@ namespace Etc
+ int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
+ if (iMaxGreen2 > 15)
+ {
+- iMinGreen2 = 15;
++ iMaxGreen2 = 15;
+ }
+
+ int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
+@@ -1167,7 +1167,7 @@ namespace Etc
+ int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
+ if (iMaxBlue2 > 15)
+ {
+- iMinBlue2 = 15;
++ iMaxBlue2 = 15;
+ }
+
+ for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
diff --git a/thirdparty/jpeg-compressor/jpgd.cpp b/thirdparty/jpeg-compressor/jpgd.cpp
index 62fbd1b72d..257d0b7574 100644
--- a/thirdparty/jpeg-compressor/jpgd.cpp
+++ b/thirdparty/jpeg-compressor/jpgd.cpp
@@ -1,27 +1,55 @@
-// jpgd.cpp - C++ class for JPEG decompression.
-// Public domain, Rich Geldreich <richgel99@gmail.com>
+// jpgd.cpp - C++ class for JPEG decompression. Written by Richard Geldreich <richgel99@gmail.com> between 1994-2020.
+// Supports progressive and baseline sequential JPEG image files, and the most common chroma subsampling factors: Y, H1V1, H2V1, H1V2, and H2V2.
+// Supports box and linear chroma upsampling.
+//
+// Released under two licenses. You are free to choose which license you want:
+// License 1:
+// Public Domain
+//
+// License 2:
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
// Alex Evans: Linear memory allocator (taken from jpge.h).
-// v1.04, May. 19, 2012: Code tweaks to fix VS2008 static code analysis warnings (all looked harmless)
+// v1.04, May. 19, 2012: Code tweaks to fix VS2008 static code analysis warnings
+// v2.00, March 20, 2020: Fuzzed with zzuf and afl. Fixed several issues, converted most assert()'s to run-time checks. Added chroma upsampling. Removed freq. domain upsampling. gcc/clang warnings.
//
-// Supports progressive and baseline sequential JPEG image files, and the most common chroma subsampling factors: Y, H1V1, H2V1, H1V2, and H2V2.
+// Important:
+// #define JPGD_USE_SSE2 to 0 to completely disable SSE2 usage.
//
-// Chroma upsampling quality: H2V2 is upsampled in the frequency domain, H2V1 and H1V2 are upsampled using point sampling.
-// Chroma upsampling reference: "Fast Scheme for Image Size Change in the Compressed Domain"
-// http://vision.ai.uiuc.edu/~dugad/research/dct/index.html
-
#include "jpgd.h"
#include <string.h>
-
+#include <algorithm>
#include <assert.h>
-#define JPGD_ASSERT(x) assert(x)
#ifdef _MSC_VER
#pragma warning (disable : 4611) // warning C4611: interaction between '_setjmp' and C++ object destruction is non-portable
#endif
-// Set to 1 to enable freq. domain chroma upsampling on images using H2V2 subsampling (0=faster nearest neighbor sampling).
-// This is slower, but results in higher quality on images with highly saturated colors.
-#define JPGD_SUPPORT_FREQ_DOMAIN_UPSAMPLING 1
+#ifndef JPGD_USE_SSE2
+
+ #if defined(__GNUC__)
+
+ #if (defined(__x86_64__) || defined(_M_X64))
+ #if defined(__SSE2__)
+ #define JPGD_USE_SSE2 (1)
+ #endif
+ #endif
+
+ #else
+ #define JPGD_USE_SSE2 (1)
+ #endif
+
+#endif
#define JPGD_TRUE (1)
#define JPGD_FALSE (0)
@@ -29,28 +57,28 @@
#define JPGD_MAX(a,b) (((a)>(b)) ? (a) : (b))
#define JPGD_MIN(a,b) (((a)<(b)) ? (a) : (b))
-// TODO: Move to header and use these constants when declaring the arrays.
-#define JPGD_HUFF_TREE_MAX_LENGTH 512
-#define JPGD_HUFF_CODE_SIZE_MAX_LENGTH 256
-
namespace jpgd {
-static inline void *jpgd_malloc(size_t nSize) { return malloc(nSize); }
-static inline void jpgd_free(void *p) { free(p); }
+ static inline void* jpgd_malloc(size_t nSize) { return malloc(nSize); }
+ static inline void jpgd_free(void* p) { free(p); }
-// DCT coefficients are stored in this sequence.
-static int g_ZAG[64] = { 0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63 };
+ // DCT coefficients are stored in this sequence.
+ static int g_ZAG[64] = { 0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63 };
-enum JPEG_MARKER
-{
- M_SOF0 = 0xC0, M_SOF1 = 0xC1, M_SOF2 = 0xC2, M_SOF3 = 0xC3, M_SOF5 = 0xC5, M_SOF6 = 0xC6, M_SOF7 = 0xC7, M_JPG = 0xC8,
- M_SOF9 = 0xC9, M_SOF10 = 0xCA, M_SOF11 = 0xCB, M_SOF13 = 0xCD, M_SOF14 = 0xCE, M_SOF15 = 0xCF, M_DHT = 0xC4, M_DAC = 0xCC,
- M_RST0 = 0xD0, M_RST1 = 0xD1, M_RST2 = 0xD2, M_RST3 = 0xD3, M_RST4 = 0xD4, M_RST5 = 0xD5, M_RST6 = 0xD6, M_RST7 = 0xD7,
- M_SOI = 0xD8, M_EOI = 0xD9, M_SOS = 0xDA, M_DQT = 0xDB, M_DNL = 0xDC, M_DRI = 0xDD, M_DHP = 0xDE, M_EXP = 0xDF,
- M_APP0 = 0xE0, M_APP15 = 0xEF, M_JPG0 = 0xF0, M_JPG13 = 0xFD, M_COM = 0xFE, M_TEM = 0x01, M_ERROR = 0x100, RST0 = 0xD0
-};
+ enum JPEG_MARKER
+ {
+ M_SOF0 = 0xC0, M_SOF1 = 0xC1, M_SOF2 = 0xC2, M_SOF3 = 0xC3, M_SOF5 = 0xC5, M_SOF6 = 0xC6, M_SOF7 = 0xC7, M_JPG = 0xC8,
+ M_SOF9 = 0xC9, M_SOF10 = 0xCA, M_SOF11 = 0xCB, M_SOF13 = 0xCD, M_SOF14 = 0xCE, M_SOF15 = 0xCF, M_DHT = 0xC4, M_DAC = 0xCC,
+ M_RST0 = 0xD0, M_RST1 = 0xD1, M_RST2 = 0xD2, M_RST3 = 0xD3, M_RST4 = 0xD4, M_RST5 = 0xD5, M_RST6 = 0xD6, M_RST7 = 0xD7,
+ M_SOI = 0xD8, M_EOI = 0xD9, M_SOS = 0xDA, M_DQT = 0xDB, M_DNL = 0xDC, M_DRI = 0xDD, M_DHP = 0xDE, M_EXP = 0xDF,
+ M_APP0 = 0xE0, M_APP15 = 0xEF, M_JPG0 = 0xF0, M_JPG13 = 0xFD, M_COM = 0xFE, M_TEM = 0x01, M_ERROR = 0x100, RST0 = 0xD0
+ };
-enum JPEG_SUBSAMPLING { JPGD_GRAYSCALE = 0, JPGD_YH1V1, JPGD_YH2V1, JPGD_YH1V2, JPGD_YH2V2 };
+ enum JPEG_SUBSAMPLING { JPGD_GRAYSCALE = 0, JPGD_YH1V1, JPGD_YH2V1, JPGD_YH1V2, JPGD_YH2V2 };
+
+#if JPGD_USE_SSE2
+#include "jpgd_idct.h"
+#endif
#define CONST_BITS 13
#define PASS1_BITS 2
@@ -76,3130 +104,3182 @@ enum JPEG_SUBSAMPLING { JPGD_GRAYSCALE = 0, JPGD_YH1V1, JPGD_YH2V1, JPGD_YH1V2,
#define CLAMP(i) ((static_cast<uint>(i) > 255) ? (((~i) >> 31) & 0xFF) : (i))
-// Compiler creates a fast path 1D IDCT for X non-zero columns
-template <int NONZERO_COLS>
-struct Row
-{
- static void idct(int* pTemp, const jpgd_block_t* pSrc)
- {
- // ACCESS_COL() will be optimized at compile time to either an array access, or 0.
- #define ACCESS_COL(x) (((x) < NONZERO_COLS) ? (int)pSrc[x] : 0)
-
- const int z2 = ACCESS_COL(2), z3 = ACCESS_COL(6);
-
- const int z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
- const int tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
- const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
-
- const int tmp0 = (ACCESS_COL(0) + ACCESS_COL(4)) << CONST_BITS;
- const int tmp1 = (ACCESS_COL(0) - ACCESS_COL(4)) << CONST_BITS;
-
- const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
-
- const int atmp0 = ACCESS_COL(7), atmp1 = ACCESS_COL(5), atmp2 = ACCESS_COL(3), atmp3 = ACCESS_COL(1);
-
- const int bz1 = atmp0 + atmp3, bz2 = atmp1 + atmp2, bz3 = atmp0 + atmp2, bz4 = atmp1 + atmp3;
- const int bz5 = MULTIPLY(bz3 + bz4, FIX_1_175875602);
-
- const int az1 = MULTIPLY(bz1, - FIX_0_899976223);
- const int az2 = MULTIPLY(bz2, - FIX_2_562915447);
- const int az3 = MULTIPLY(bz3, - FIX_1_961570560) + bz5;
- const int az4 = MULTIPLY(bz4, - FIX_0_390180644) + bz5;
-
- const int btmp0 = MULTIPLY(atmp0, FIX_0_298631336) + az1 + az3;
- const int btmp1 = MULTIPLY(atmp1, FIX_2_053119869) + az2 + az4;
- const int btmp2 = MULTIPLY(atmp2, FIX_3_072711026) + az2 + az3;
- const int btmp3 = MULTIPLY(atmp3, FIX_1_501321110) + az1 + az4;
-
- pTemp[0] = DESCALE(tmp10 + btmp3, CONST_BITS-PASS1_BITS);
- pTemp[7] = DESCALE(tmp10 - btmp3, CONST_BITS-PASS1_BITS);
- pTemp[1] = DESCALE(tmp11 + btmp2, CONST_BITS-PASS1_BITS);
- pTemp[6] = DESCALE(tmp11 - btmp2, CONST_BITS-PASS1_BITS);
- pTemp[2] = DESCALE(tmp12 + btmp1, CONST_BITS-PASS1_BITS);
- pTemp[5] = DESCALE(tmp12 - btmp1, CONST_BITS-PASS1_BITS);
- pTemp[3] = DESCALE(tmp13 + btmp0, CONST_BITS-PASS1_BITS);
- pTemp[4] = DESCALE(tmp13 - btmp0, CONST_BITS-PASS1_BITS);
- }
-};
-
-template <>
-struct Row<0>
-{
- static void idct(int* pTemp, const jpgd_block_t* pSrc)
- {
-#ifdef _MSC_VER
- pTemp; pSrc;
+ static inline int left_shifti(int val, uint32_t bits)
+ {
+ return static_cast<int>(static_cast<uint32_t>(val) << bits);
+ }
+
+ // Compiler creates a fast path 1D IDCT for X non-zero columns
+ template <int NONZERO_COLS>
+ struct Row
+ {
+ static void idct(int* pTemp, const jpgd_block_coeff_t* pSrc)
+ {
+ // ACCESS_COL() will be optimized at compile time to either an array access, or 0. Good compilers will then optimize out muls against 0.
+#define ACCESS_COL(x) (((x) < NONZERO_COLS) ? (int)pSrc[x] : 0)
+
+ const int z2 = ACCESS_COL(2), z3 = ACCESS_COL(6);
+
+ const int z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+ const int tmp2 = z1 + MULTIPLY(z3, -FIX_1_847759065);
+ const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
+
+ const int tmp0 = left_shifti(ACCESS_COL(0) + ACCESS_COL(4), CONST_BITS);
+ const int tmp1 = left_shifti(ACCESS_COL(0) - ACCESS_COL(4), CONST_BITS);
+
+ const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
+
+ const int atmp0 = ACCESS_COL(7), atmp1 = ACCESS_COL(5), atmp2 = ACCESS_COL(3), atmp3 = ACCESS_COL(1);
+
+ const int bz1 = atmp0 + atmp3, bz2 = atmp1 + atmp2, bz3 = atmp0 + atmp2, bz4 = atmp1 + atmp3;
+ const int bz5 = MULTIPLY(bz3 + bz4, FIX_1_175875602);
+
+ const int az1 = MULTIPLY(bz1, -FIX_0_899976223);
+ const int az2 = MULTIPLY(bz2, -FIX_2_562915447);
+ const int az3 = MULTIPLY(bz3, -FIX_1_961570560) + bz5;
+ const int az4 = MULTIPLY(bz4, -FIX_0_390180644) + bz5;
+
+ const int btmp0 = MULTIPLY(atmp0, FIX_0_298631336) + az1 + az3;
+ const int btmp1 = MULTIPLY(atmp1, FIX_2_053119869) + az2 + az4;
+ const int btmp2 = MULTIPLY(atmp2, FIX_3_072711026) + az2 + az3;
+ const int btmp3 = MULTIPLY(atmp3, FIX_1_501321110) + az1 + az4;
+
+ pTemp[0] = DESCALE(tmp10 + btmp3, CONST_BITS - PASS1_BITS);
+ pTemp[7] = DESCALE(tmp10 - btmp3, CONST_BITS - PASS1_BITS);
+ pTemp[1] = DESCALE(tmp11 + btmp2, CONST_BITS - PASS1_BITS);
+ pTemp[6] = DESCALE(tmp11 - btmp2, CONST_BITS - PASS1_BITS);
+ pTemp[2] = DESCALE(tmp12 + btmp1, CONST_BITS - PASS1_BITS);
+ pTemp[5] = DESCALE(tmp12 - btmp1, CONST_BITS - PASS1_BITS);
+ pTemp[3] = DESCALE(tmp13 + btmp0, CONST_BITS - PASS1_BITS);
+ pTemp[4] = DESCALE(tmp13 - btmp0, CONST_BITS - PASS1_BITS);
+ }
+ };
+
+ template <>
+ struct Row<0>
+ {
+ static void idct(int* pTemp, const jpgd_block_coeff_t* pSrc)
+ {
+ (void)pTemp;
+ (void)pSrc;
+ }
+ };
+
+ template <>
+ struct Row<1>
+ {
+ static void idct(int* pTemp, const jpgd_block_coeff_t* pSrc)
+ {
+ const int dcval = left_shifti(pSrc[0], PASS1_BITS);
+
+ pTemp[0] = dcval;
+ pTemp[1] = dcval;
+ pTemp[2] = dcval;
+ pTemp[3] = dcval;
+ pTemp[4] = dcval;
+ pTemp[5] = dcval;
+ pTemp[6] = dcval;
+ pTemp[7] = dcval;
+ }
+ };
+
+ // Compiler creates a fast path 1D IDCT for X non-zero rows
+ template <int NONZERO_ROWS>
+ struct Col
+ {
+ static void idct(uint8* pDst_ptr, const int* pTemp)
+ {
+ // ACCESS_ROW() will be optimized at compile time to either an array access, or 0.
+#define ACCESS_ROW(x) (((x) < NONZERO_ROWS) ? pTemp[x * 8] : 0)
+
+ const int z2 = ACCESS_ROW(2);
+ const int z3 = ACCESS_ROW(6);
+
+ const int z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+ const int tmp2 = z1 + MULTIPLY(z3, -FIX_1_847759065);
+ const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
+
+ const int tmp0 = left_shifti(ACCESS_ROW(0) + ACCESS_ROW(4), CONST_BITS);
+ const int tmp1 = left_shifti(ACCESS_ROW(0) - ACCESS_ROW(4), CONST_BITS);
+
+ const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
+
+ const int atmp0 = ACCESS_ROW(7), atmp1 = ACCESS_ROW(5), atmp2 = ACCESS_ROW(3), atmp3 = ACCESS_ROW(1);
+
+ const int bz1 = atmp0 + atmp3, bz2 = atmp1 + atmp2, bz3 = atmp0 + atmp2, bz4 = atmp1 + atmp3;
+ const int bz5 = MULTIPLY(bz3 + bz4, FIX_1_175875602);
+
+ const int az1 = MULTIPLY(bz1, -FIX_0_899976223);
+ const int az2 = MULTIPLY(bz2, -FIX_2_562915447);
+ const int az3 = MULTIPLY(bz3, -FIX_1_961570560) + bz5;
+ const int az4 = MULTIPLY(bz4, -FIX_0_390180644) + bz5;
+
+ const int btmp0 = MULTIPLY(atmp0, FIX_0_298631336) + az1 + az3;
+ const int btmp1 = MULTIPLY(atmp1, FIX_2_053119869) + az2 + az4;
+ const int btmp2 = MULTIPLY(atmp2, FIX_3_072711026) + az2 + az3;
+ const int btmp3 = MULTIPLY(atmp3, FIX_1_501321110) + az1 + az4;
+
+ int i = DESCALE_ZEROSHIFT(tmp10 + btmp3, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 0] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp10 - btmp3, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 7] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp11 + btmp2, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 1] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp11 - btmp2, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 6] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp12 + btmp1, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 2] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp12 - btmp1, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 5] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp13 + btmp0, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 3] = (uint8)CLAMP(i);
+
+ i = DESCALE_ZEROSHIFT(tmp13 - btmp0, CONST_BITS + PASS1_BITS + 3);
+ pDst_ptr[8 * 4] = (uint8)CLAMP(i);
+ }
+ };
+
+ template <>
+ struct Col<1>
+ {
+ static void idct(uint8* pDst_ptr, const int* pTemp)
+ {
+ int dcval = DESCALE_ZEROSHIFT(pTemp[0], PASS1_BITS + 3);
+ const uint8 dcval_clamped = (uint8)CLAMP(dcval);
+ pDst_ptr[0 * 8] = dcval_clamped;
+ pDst_ptr[1 * 8] = dcval_clamped;
+ pDst_ptr[2 * 8] = dcval_clamped;
+ pDst_ptr[3 * 8] = dcval_clamped;
+ pDst_ptr[4 * 8] = dcval_clamped;
+ pDst_ptr[5 * 8] = dcval_clamped;
+ pDst_ptr[6 * 8] = dcval_clamped;
+ pDst_ptr[7 * 8] = dcval_clamped;
+ }
+ };
+
+ static const uint8 s_idct_row_table[] =
+ {
+ 1,0,0,0,0,0,0,0, 2,0,0,0,0,0,0,0, 2,1,0,0,0,0,0,0, 2,1,1,0,0,0,0,0, 2,2,1,0,0,0,0,0, 3,2,1,0,0,0,0,0, 4,2,1,0,0,0,0,0, 4,3,1,0,0,0,0,0,
+ 4,3,2,0,0,0,0,0, 4,3,2,1,0,0,0,0, 4,3,2,1,1,0,0,0, 4,3,2,2,1,0,0,0, 4,3,3,2,1,0,0,0, 4,4,3,2,1,0,0,0, 5,4,3,2,1,0,0,0, 6,4,3,2,1,0,0,0,
+ 6,5,3,2,1,0,0,0, 6,5,4,2,1,0,0,0, 6,5,4,3,1,0,0,0, 6,5,4,3,2,0,0,0, 6,5,4,3,2,1,0,0, 6,5,4,3,2,1,1,0, 6,5,4,3,2,2,1,0, 6,5,4,3,3,2,1,0,
+ 6,5,4,4,3,2,1,0, 6,5,5,4,3,2,1,0, 6,6,5,4,3,2,1,0, 7,6,5,4,3,2,1,0, 8,6,5,4,3,2,1,0, 8,7,5,4,3,2,1,0, 8,7,6,4,3,2,1,0, 8,7,6,5,3,2,1,0,
+ 8,7,6,5,4,2,1,0, 8,7,6,5,4,3,1,0, 8,7,6,5,4,3,2,0, 8,7,6,5,4,3,2,1, 8,7,6,5,4,3,2,2, 8,7,6,5,4,3,3,2, 8,7,6,5,4,4,3,2, 8,7,6,5,5,4,3,2,
+ 8,7,6,6,5,4,3,2, 8,7,7,6,5,4,3,2, 8,8,7,6,5,4,3,2, 8,8,8,6,5,4,3,2, 8,8,8,7,5,4,3,2, 8,8,8,7,6,4,3,2, 8,8,8,7,6,5,3,2, 8,8,8,7,6,5,4,2,
+ 8,8,8,7,6,5,4,3, 8,8,8,7,6,5,4,4, 8,8,8,7,6,5,5,4, 8,8,8,7,6,6,5,4, 8,8,8,7,7,6,5,4, 8,8,8,8,7,6,5,4, 8,8,8,8,8,6,5,4, 8,8,8,8,8,7,5,4,
+ 8,8,8,8,8,7,6,4, 8,8,8,8,8,7,6,5, 8,8,8,8,8,7,6,6, 8,8,8,8,8,7,7,6, 8,8,8,8,8,8,7,6, 8,8,8,8,8,8,8,6, 8,8,8,8,8,8,8,7, 8,8,8,8,8,8,8,8,
+ };
+
+ static const uint8 s_idct_col_table[] =
+ {
+ 1, 1, 2, 3, 3, 3, 3, 3, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8
+ };
+
+ // Scalar "fast pathing" IDCT.
+ static void idct(const jpgd_block_coeff_t* pSrc_ptr, uint8* pDst_ptr, int block_max_zag, bool use_simd)
+ {
+ (void)use_simd;
+
+ assert(block_max_zag >= 1);
+ assert(block_max_zag <= 64);
+
+ if (block_max_zag <= 1)
+ {
+ int k = ((pSrc_ptr[0] + 4) >> 3) + 128;
+ k = CLAMP(k);
+ k = k | (k << 8);
+ k = k | (k << 16);
+
+ for (int i = 8; i > 0; i--)
+ {
+ *(int*)&pDst_ptr[0] = k;
+ *(int*)&pDst_ptr[4] = k;
+ pDst_ptr += 8;
+ }
+ return;
+ }
+
+#if JPGD_USE_SSE2
+ if (use_simd)
+ {
+ assert((((uintptr_t)pSrc_ptr) & 15) == 0);
+ assert((((uintptr_t)pDst_ptr) & 15) == 0);
+ idctSSEShortU8(pSrc_ptr, pDst_ptr);
+ return;
+ }
#endif
- }
-};
-
-template <>
-struct Row<1>
-{
- static void idct(int* pTemp, const jpgd_block_t* pSrc)
- {
- const int dcval = (pSrc[0] << PASS1_BITS);
-
- pTemp[0] = dcval;
- pTemp[1] = dcval;
- pTemp[2] = dcval;
- pTemp[3] = dcval;
- pTemp[4] = dcval;
- pTemp[5] = dcval;
- pTemp[6] = dcval;
- pTemp[7] = dcval;
- }
-};
-
-// Compiler creates a fast path 1D IDCT for X non-zero rows
-template <int NONZERO_ROWS>
-struct Col
-{
- static void idct(uint8* pDst_ptr, const int* pTemp)
- {
- // ACCESS_ROW() will be optimized at compile time to either an array access, or 0.
- #define ACCESS_ROW(x) (((x) < NONZERO_ROWS) ? pTemp[x * 8] : 0)
-
- const int z2 = ACCESS_ROW(2);
- const int z3 = ACCESS_ROW(6);
-
- const int z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
- const int tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
- const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
-
- const int tmp0 = (ACCESS_ROW(0) + ACCESS_ROW(4)) << CONST_BITS;
- const int tmp1 = (ACCESS_ROW(0) - ACCESS_ROW(4)) << CONST_BITS;
-
- const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
-
- const int atmp0 = ACCESS_ROW(7), atmp1 = ACCESS_ROW(5), atmp2 = ACCESS_ROW(3), atmp3 = ACCESS_ROW(1);
-
- const int bz1 = atmp0 + atmp3, bz2 = atmp1 + atmp2, bz3 = atmp0 + atmp2, bz4 = atmp1 + atmp3;
- const int bz5 = MULTIPLY(bz3 + bz4, FIX_1_175875602);
-
- const int az1 = MULTIPLY(bz1, - FIX_0_899976223);
- const int az2 = MULTIPLY(bz2, - FIX_2_562915447);
- const int az3 = MULTIPLY(bz3, - FIX_1_961570560) + bz5;
- const int az4 = MULTIPLY(bz4, - FIX_0_390180644) + bz5;
-
- const int btmp0 = MULTIPLY(atmp0, FIX_0_298631336) + az1 + az3;
- const int btmp1 = MULTIPLY(atmp1, FIX_2_053119869) + az2 + az4;
- const int btmp2 = MULTIPLY(atmp2, FIX_3_072711026) + az2 + az3;
- const int btmp3 = MULTIPLY(atmp3, FIX_1_501321110) + az1 + az4;
-
- int i = DESCALE_ZEROSHIFT(tmp10 + btmp3, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*0] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp10 - btmp3, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*7] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp11 + btmp2, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*1] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp11 - btmp2, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*6] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp12 + btmp1, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*2] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp12 - btmp1, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*5] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp13 + btmp0, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*3] = (uint8)CLAMP(i);
-
- i = DESCALE_ZEROSHIFT(tmp13 - btmp0, CONST_BITS+PASS1_BITS+3);
- pDst_ptr[8*4] = (uint8)CLAMP(i);
- }
-};
-
-template <>
-struct Col<1>
-{
- static void idct(uint8* pDst_ptr, const int* pTemp)
- {
- int dcval = DESCALE_ZEROSHIFT(pTemp[0], PASS1_BITS+3);
- const uint8 dcval_clamped = (uint8)CLAMP(dcval);
- pDst_ptr[0*8] = dcval_clamped;
- pDst_ptr[1*8] = dcval_clamped;
- pDst_ptr[2*8] = dcval_clamped;
- pDst_ptr[3*8] = dcval_clamped;
- pDst_ptr[4*8] = dcval_clamped;
- pDst_ptr[5*8] = dcval_clamped;
- pDst_ptr[6*8] = dcval_clamped;
- pDst_ptr[7*8] = dcval_clamped;
- }
-};
-
-static const uint8 s_idct_row_table[] =
-{
- 1,0,0,0,0,0,0,0, 2,0,0,0,0,0,0,0, 2,1,0,0,0,0,0,0, 2,1,1,0,0,0,0,0, 2,2,1,0,0,0,0,0, 3,2,1,0,0,0,0,0, 4,2,1,0,0,0,0,0, 4,3,1,0,0,0,0,0,
- 4,3,2,0,0,0,0,0, 4,3,2,1,0,0,0,0, 4,3,2,1,1,0,0,0, 4,3,2,2,1,0,0,0, 4,3,3,2,1,0,0,0, 4,4,3,2,1,0,0,0, 5,4,3,2,1,0,0,0, 6,4,3,2,1,0,0,0,
- 6,5,3,2,1,0,0,0, 6,5,4,2,1,0,0,0, 6,5,4,3,1,0,0,0, 6,5,4,3,2,0,0,0, 6,5,4,3,2,1,0,0, 6,5,4,3,2,1,1,0, 6,5,4,3,2,2,1,0, 6,5,4,3,3,2,1,0,
- 6,5,4,4,3,2,1,0, 6,5,5,4,3,2,1,0, 6,6,5,4,3,2,1,0, 7,6,5,4,3,2,1,0, 8,6,5,4,3,2,1,0, 8,7,5,4,3,2,1,0, 8,7,6,4,3,2,1,0, 8,7,6,5,3,2,1,0,
- 8,7,6,5,4,2,1,0, 8,7,6,5,4,3,1,0, 8,7,6,5,4,3,2,0, 8,7,6,5,4,3,2,1, 8,7,6,5,4,3,2,2, 8,7,6,5,4,3,3,2, 8,7,6,5,4,4,3,2, 8,7,6,5,5,4,3,2,
- 8,7,6,6,5,4,3,2, 8,7,7,6,5,4,3,2, 8,8,7,6,5,4,3,2, 8,8,8,6,5,4,3,2, 8,8,8,7,5,4,3,2, 8,8,8,7,6,4,3,2, 8,8,8,7,6,5,3,2, 8,8,8,7,6,5,4,2,
- 8,8,8,7,6,5,4,3, 8,8,8,7,6,5,4,4, 8,8,8,7,6,5,5,4, 8,8,8,7,6,6,5,4, 8,8,8,7,7,6,5,4, 8,8,8,8,7,6,5,4, 8,8,8,8,8,6,5,4, 8,8,8,8,8,7,5,4,
- 8,8,8,8,8,7,6,4, 8,8,8,8,8,7,6,5, 8,8,8,8,8,7,6,6, 8,8,8,8,8,7,7,6, 8,8,8,8,8,8,7,6, 8,8,8,8,8,8,8,6, 8,8,8,8,8,8,8,7, 8,8,8,8,8,8,8,8,
-};
-
-static const uint8 s_idct_col_table[] = { 1, 1, 2, 3, 3, 3, 3, 3, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8 };
-
-void idct(const jpgd_block_t* pSrc_ptr, uint8* pDst_ptr, int block_max_zag)
-{
- JPGD_ASSERT(block_max_zag >= 1);
- JPGD_ASSERT(block_max_zag <= 64);
-
- if (block_max_zag <= 1)
- {
- int k = ((pSrc_ptr[0] + 4) >> 3) + 128;
- k = CLAMP(k);
- k = k | (k<<8);
- k = k | (k<<16);
-
- for (int i = 8; i > 0; i--)
- {
- *(int*)&pDst_ptr[0] = k;
- *(int*)&pDst_ptr[4] = k;
- pDst_ptr += 8;
- }
- return;
- }
-
- int temp[64];
-
- const jpgd_block_t* pSrc = pSrc_ptr;
- int* pTemp = temp;
-
- const uint8* pRow_tab = &s_idct_row_table[(block_max_zag - 1) * 8];
- int i;
- for (i = 8; i > 0; i--, pRow_tab++)
- {
- switch (*pRow_tab)
- {
- case 0: Row<0>::idct(pTemp, pSrc); break;
- case 1: Row<1>::idct(pTemp, pSrc); break;
- case 2: Row<2>::idct(pTemp, pSrc); break;
- case 3: Row<3>::idct(pTemp, pSrc); break;
- case 4: Row<4>::idct(pTemp, pSrc); break;
- case 5: Row<5>::idct(pTemp, pSrc); break;
- case 6: Row<6>::idct(pTemp, pSrc); break;
- case 7: Row<7>::idct(pTemp, pSrc); break;
- case 8: Row<8>::idct(pTemp, pSrc); break;
- }
-
- pSrc += 8;
- pTemp += 8;
- }
-
- pTemp = temp;
-
- const int nonzero_rows = s_idct_col_table[block_max_zag - 1];
- for (i = 8; i > 0; i--)
- {
- switch (nonzero_rows)
- {
- case 1: Col<1>::idct(pDst_ptr, pTemp); break;
- case 2: Col<2>::idct(pDst_ptr, pTemp); break;
- case 3: Col<3>::idct(pDst_ptr, pTemp); break;
- case 4: Col<4>::idct(pDst_ptr, pTemp); break;
- case 5: Col<5>::idct(pDst_ptr, pTemp); break;
- case 6: Col<6>::idct(pDst_ptr, pTemp); break;
- case 7: Col<7>::idct(pDst_ptr, pTemp); break;
- case 8: Col<8>::idct(pDst_ptr, pTemp); break;
- }
-
- pTemp++;
- pDst_ptr++;
- }
-}
-
-void idct_4x4(const jpgd_block_t* pSrc_ptr, uint8* pDst_ptr)
-{
- int temp[64];
- int* pTemp = temp;
- const jpgd_block_t* pSrc = pSrc_ptr;
-
- for (int i = 4; i > 0; i--)
- {
- Row<4>::idct(pTemp, pSrc);
- pSrc += 8;
- pTemp += 8;
- }
-
- pTemp = temp;
- for (int i = 8; i > 0; i--)
- {
- Col<4>::idct(pDst_ptr, pTemp);
- pTemp++;
- pDst_ptr++;
- }
-}
-
-// Retrieve one character from the input stream.
-inline uint jpeg_decoder::get_char()
-{
- // Any bytes remaining in buffer?
- if (!m_in_buf_left)
- {
- // Try to get more bytes.
- prep_in_buffer();
- // Still nothing to get?
- if (!m_in_buf_left)
- {
- // Pad the end of the stream with 0xFF 0xD9 (EOI marker)
- int t = m_tem_flag;
- m_tem_flag ^= 1;
- if (t)
- return 0xD9;
- else
- return 0xFF;
- }
- }
-
- uint c = *m_pIn_buf_ofs++;
- m_in_buf_left--;
-
- return c;
-}
-
-// Same as previous method, except can indicate if the character is a pad character or not.
-inline uint jpeg_decoder::get_char(bool *pPadding_flag)
-{
- if (!m_in_buf_left)
- {
- prep_in_buffer();
- if (!m_in_buf_left)
- {
- *pPadding_flag = true;
- int t = m_tem_flag;
- m_tem_flag ^= 1;
- if (t)
- return 0xD9;
- else
- return 0xFF;
- }
- }
-
- *pPadding_flag = false;
-
- uint c = *m_pIn_buf_ofs++;
- m_in_buf_left--;
-
- return c;
-}
-
-// Inserts a previously retrieved character back into the input buffer.
-inline void jpeg_decoder::stuff_char(uint8 q)
-{
- *(--m_pIn_buf_ofs) = q;
- m_in_buf_left++;
-}
-
-// Retrieves one character from the input stream, but does not read past markers. Will continue to return 0xFF when a marker is encountered.
-inline uint8 jpeg_decoder::get_octet()
-{
- bool padding_flag;
- int c = get_char(&padding_flag);
-
- if (c == 0xFF)
- {
- if (padding_flag)
- return 0xFF;
-
- c = get_char(&padding_flag);
- if (padding_flag)
- {
- stuff_char(0xFF);
- return 0xFF;
- }
-
- if (c == 0x00)
- return 0xFF;
- else
- {
- stuff_char(static_cast<uint8>(c));
- stuff_char(0xFF);
- return 0xFF;
- }
- }
-
- return static_cast<uint8>(c);
-}
-
-// Retrieves a variable number of bits from the input stream. Does not recognize markers.
-inline uint jpeg_decoder::get_bits(int num_bits)
-{
- if (!num_bits)
- return 0;
-
- uint i = m_bit_buf >> (32 - num_bits);
-
- if ((m_bits_left -= num_bits) <= 0)
- {
- m_bit_buf <<= (num_bits += m_bits_left);
-
- uint c1 = get_char();
- uint c2 = get_char();
- m_bit_buf = (m_bit_buf & 0xFFFF0000) | (c1 << 8) | c2;
-
- m_bit_buf <<= -m_bits_left;
-
- m_bits_left += 16;
-
- JPGD_ASSERT(m_bits_left >= 0);
- }
- else
- m_bit_buf <<= num_bits;
-
- return i;
-}
-
-// Retrieves a variable number of bits from the input stream. Markers will not be read into the input bit buffer. Instead, an infinite number of all 1's will be returned when a marker is encountered.
-inline uint jpeg_decoder::get_bits_no_markers(int num_bits)
-{
- if (!num_bits)
- return 0;
-
- uint i = m_bit_buf >> (32 - num_bits);
-
- if ((m_bits_left -= num_bits) <= 0)
- {
- m_bit_buf <<= (num_bits += m_bits_left);
-
- if ((m_in_buf_left < 2) || (m_pIn_buf_ofs[0] == 0xFF) || (m_pIn_buf_ofs[1] == 0xFF))
- {
- uint c1 = get_octet();
- uint c2 = get_octet();
- m_bit_buf |= (c1 << 8) | c2;
- }
- else
- {
- m_bit_buf |= ((uint)m_pIn_buf_ofs[0] << 8) | m_pIn_buf_ofs[1];
- m_in_buf_left -= 2;
- m_pIn_buf_ofs += 2;
- }
-
- m_bit_buf <<= -m_bits_left;
-
- m_bits_left += 16;
-
- JPGD_ASSERT(m_bits_left >= 0);
- }
- else
- m_bit_buf <<= num_bits;
-
- return i;
-}
-
-// Decodes a Huffman encoded symbol.
-inline int jpeg_decoder::huff_decode(huff_tables *pH)
-{
- JPGD_ASSERT(pH);
-
- int symbol;
- // Check first 8-bits: do we have a complete symbol?
- if ((symbol = pH->look_up[m_bit_buf >> 24]) < 0)
- {
- // Decode more bits, use a tree traversal to find symbol.
- int ofs = 23;
- do
- {
- unsigned int idx = -(int)(symbol + ((m_bit_buf >> ofs) & 1));
- JPGD_ASSERT(idx < JPGD_HUFF_TREE_MAX_LENGTH);
- symbol = pH->tree[idx];
- ofs--;
- } while (symbol < 0);
-
- get_bits_no_markers(8 + (23 - ofs));
- }
- else
- {
- JPGD_ASSERT(symbol < JPGD_HUFF_CODE_SIZE_MAX_LENGTH);
- get_bits_no_markers(pH->code_size[symbol]);
- }
-
- return symbol;
-}
-
-// Decodes a Huffman encoded symbol.
-inline int jpeg_decoder::huff_decode(huff_tables *pH, int& extra_bits)
-{
- int symbol;
-
- JPGD_ASSERT(pH);
-
- // Check first 8-bits: do we have a complete symbol?
- if ((symbol = pH->look_up2[m_bit_buf >> 24]) < 0)
- {
- // Use a tree traversal to find symbol.
- int ofs = 23;
- do
- {
- unsigned int idx = -(int)(symbol + ((m_bit_buf >> ofs) & 1));
- JPGD_ASSERT(idx < JPGD_HUFF_TREE_MAX_LENGTH);
- symbol = pH->tree[idx];
- ofs--;
- } while (symbol < 0);
-
- get_bits_no_markers(8 + (23 - ofs));
-
- extra_bits = get_bits_no_markers(symbol & 0xF);
- }
- else
- {
- JPGD_ASSERT(((symbol >> 8) & 31) == pH->code_size[symbol & 255] + ((symbol & 0x8000) ? (symbol & 15) : 0));
-
- if (symbol & 0x8000)
- {
- get_bits_no_markers((symbol >> 8) & 31);
- extra_bits = symbol >> 16;
- }
- else
- {
- int code_size = (symbol >> 8) & 31;
- int num_extra_bits = symbol & 0xF;
- int bits = code_size + num_extra_bits;
- if (bits <= (m_bits_left + 16))
- extra_bits = get_bits_no_markers(bits) & ((1 << num_extra_bits) - 1);
- else
- {
- get_bits_no_markers(code_size);
- extra_bits = get_bits_no_markers(num_extra_bits);
- }
- }
-
- symbol &= 0xFF;
- }
-
- return symbol;
-}
-
-// Tables and macro used to fully decode the DPCM differences.
-static const int s_extend_test[16] = { 0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 };
-static const int s_extend_offset[16] = { 0, ((-1)<<1) + 1, ((-1)<<2) + 1, ((-1)<<3) + 1, ((-1)<<4) + 1, ((-1)<<5) + 1, ((-1)<<6) + 1, ((-1)<<7) + 1, ((-1)<<8) + 1, ((-1)<<9) + 1, ((-1)<<10) + 1, ((-1)<<11) + 1, ((-1)<<12) + 1, ((-1)<<13) + 1, ((-1)<<14) + 1, ((-1)<<15) + 1 };
-static const int s_extend_mask[] = { 0, (1<<0), (1<<1), (1<<2), (1<<3), (1<<4), (1<<5), (1<<6), (1<<7), (1<<8), (1<<9), (1<<10), (1<<11), (1<<12), (1<<13), (1<<14), (1<<15), (1<<16) };
-// The logical AND's in this macro are to shut up static code analysis (aren't really necessary - couldn't find another way to do this)
+
+ int temp[64];
+
+ const jpgd_block_coeff_t* pSrc = pSrc_ptr;
+ int* pTemp = temp;
+
+ const uint8* pRow_tab = &s_idct_row_table[(block_max_zag - 1) * 8];
+ int i;
+ for (i = 8; i > 0; i--, pRow_tab++)
+ {
+ switch (*pRow_tab)
+ {
+ case 0: Row<0>::idct(pTemp, pSrc); break;
+ case 1: Row<1>::idct(pTemp, pSrc); break;
+ case 2: Row<2>::idct(pTemp, pSrc); break;
+ case 3: Row<3>::idct(pTemp, pSrc); break;
+ case 4: Row<4>::idct(pTemp, pSrc); break;
+ case 5: Row<5>::idct(pTemp, pSrc); break;
+ case 6: Row<6>::idct(pTemp, pSrc); break;
+ case 7: Row<7>::idct(pTemp, pSrc); break;
+ case 8: Row<8>::idct(pTemp, pSrc); break;
+ }
+
+ pSrc += 8;
+ pTemp += 8;
+ }
+
+ pTemp = temp;
+
+ const int nonzero_rows = s_idct_col_table[block_max_zag - 1];
+ for (i = 8; i > 0; i--)
+ {
+ switch (nonzero_rows)
+ {
+ case 1: Col<1>::idct(pDst_ptr, pTemp); break;
+ case 2: Col<2>::idct(pDst_ptr, pTemp); break;
+ case 3: Col<3>::idct(pDst_ptr, pTemp); break;
+ case 4: Col<4>::idct(pDst_ptr, pTemp); break;
+ case 5: Col<5>::idct(pDst_ptr, pTemp); break;
+ case 6: Col<6>::idct(pDst_ptr, pTemp); break;
+ case 7: Col<7>::idct(pDst_ptr, pTemp); break;
+ case 8: Col<8>::idct(pDst_ptr, pTemp); break;
+ }
+
+ pTemp++;
+ pDst_ptr++;
+ }
+ }
+
+ // Retrieve one character from the input stream.
+ inline uint jpeg_decoder::get_char()
+ {
+ // Any bytes remaining in buffer?
+ if (!m_in_buf_left)
+ {
+ // Try to get more bytes.
+ prep_in_buffer();
+ // Still nothing to get?
+ if (!m_in_buf_left)
+ {
+ // Pad the end of the stream with 0xFF 0xD9 (EOI marker)
+ int t = m_tem_flag;
+ m_tem_flag ^= 1;
+ if (t)
+ return 0xD9;
+ else
+ return 0xFF;
+ }
+ }
+
+ uint c = *m_pIn_buf_ofs++;
+ m_in_buf_left--;
+
+ return c;
+ }
+
+ // Same as previous method, except can indicate if the character is a pad character or not.
+ inline uint jpeg_decoder::get_char(bool* pPadding_flag)
+ {
+ if (!m_in_buf_left)
+ {
+ prep_in_buffer();
+ if (!m_in_buf_left)
+ {
+ *pPadding_flag = true;
+ int t = m_tem_flag;
+ m_tem_flag ^= 1;
+ if (t)
+ return 0xD9;
+ else
+ return 0xFF;
+ }
+ }
+
+ *pPadding_flag = false;
+
+ uint c = *m_pIn_buf_ofs++;
+ m_in_buf_left--;
+
+ return c;
+ }
+
+ // Inserts a previously retrieved character back into the input buffer.
+ inline void jpeg_decoder::stuff_char(uint8 q)
+ {
+ // This could write before the input buffer, but we've placed another array there.
+ *(--m_pIn_buf_ofs) = q;
+ m_in_buf_left++;
+ }
+
+ // Retrieves one character from the input stream, but does not read past markers. Will continue to return 0xFF when a marker is encountered.
+ inline uint8 jpeg_decoder::get_octet()
+ {
+ bool padding_flag;
+ int c = get_char(&padding_flag);
+
+ if (c == 0xFF)
+ {
+ if (padding_flag)
+ return 0xFF;
+
+ c = get_char(&padding_flag);
+ if (padding_flag)
+ {
+ stuff_char(0xFF);
+ return 0xFF;
+ }
+
+ if (c == 0x00)
+ return 0xFF;
+ else
+ {
+ stuff_char(static_cast<uint8>(c));
+ stuff_char(0xFF);
+ return 0xFF;
+ }
+ }
+
+ return static_cast<uint8>(c);
+ }
+
+ // Retrieves a variable number of bits from the input stream. Does not recognize markers.
+ inline uint jpeg_decoder::get_bits(int num_bits)
+ {
+ if (!num_bits)
+ return 0;
+
+ uint i = m_bit_buf >> (32 - num_bits);
+
+ if ((m_bits_left -= num_bits) <= 0)
+ {
+ m_bit_buf <<= (num_bits += m_bits_left);
+
+ uint c1 = get_char();
+ uint c2 = get_char();
+ m_bit_buf = (m_bit_buf & 0xFFFF0000) | (c1 << 8) | c2;
+
+ m_bit_buf <<= -m_bits_left;
+
+ m_bits_left += 16;
+
+ assert(m_bits_left >= 0);
+ }
+ else
+ m_bit_buf <<= num_bits;
+
+ return i;
+ }
+
+ // Retrieves a variable number of bits from the input stream. Markers will not be read into the input bit buffer. Instead, an infinite number of all 1's will be returned when a marker is encountered.
+ inline uint jpeg_decoder::get_bits_no_markers(int num_bits)
+ {
+ if (!num_bits)
+ return 0;
+
+ assert(num_bits <= 16);
+
+ uint i = m_bit_buf >> (32 - num_bits);
+
+ if ((m_bits_left -= num_bits) <= 0)
+ {
+ m_bit_buf <<= (num_bits += m_bits_left);
+
+ if ((m_in_buf_left < 2) || (m_pIn_buf_ofs[0] == 0xFF) || (m_pIn_buf_ofs[1] == 0xFF))
+ {
+ uint c1 = get_octet();
+ uint c2 = get_octet();
+ m_bit_buf |= (c1 << 8) | c2;
+ }
+ else
+ {
+ m_bit_buf |= ((uint)m_pIn_buf_ofs[0] << 8) | m_pIn_buf_ofs[1];
+ m_in_buf_left -= 2;
+ m_pIn_buf_ofs += 2;
+ }
+
+ m_bit_buf <<= -m_bits_left;
+
+ m_bits_left += 16;
+
+ assert(m_bits_left >= 0);
+ }
+ else
+ m_bit_buf <<= num_bits;
+
+ return i;
+ }
+
+ // Decodes a Huffman encoded symbol.
+ inline int jpeg_decoder::huff_decode(huff_tables* pH)
+ {
+ if (!pH)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ int symbol;
+ // Check first 8-bits: do we have a complete symbol?
+ if ((symbol = pH->look_up[m_bit_buf >> 24]) < 0)
+ {
+ // Decode more bits, use a tree traversal to find symbol.
+ int ofs = 23;
+ do
+ {
+ unsigned int idx = -(int)(symbol + ((m_bit_buf >> ofs) & 1));
+
+ // This should never happen, but to be safe I'm turning these asserts into a run-time check.
+ if ((idx >= JPGD_HUFF_TREE_MAX_LENGTH) || (ofs < 0))
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ symbol = pH->tree[idx];
+ ofs--;
+ } while (symbol < 0);
+
+ get_bits_no_markers(8 + (23 - ofs));
+ }
+ else
+ {
+ assert(symbol < JPGD_HUFF_CODE_SIZE_MAX_LENGTH);
+ get_bits_no_markers(pH->code_size[symbol]);
+ }
+
+ return symbol;
+ }
+
+ // Decodes a Huffman encoded symbol.
+ inline int jpeg_decoder::huff_decode(huff_tables* pH, int& extra_bits)
+ {
+ int symbol;
+
+ if (!pH)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ // Check first 8-bits: do we have a complete symbol?
+ if ((symbol = pH->look_up2[m_bit_buf >> 24]) < 0)
+ {
+ // Use a tree traversal to find symbol.
+ int ofs = 23;
+ do
+ {
+ unsigned int idx = -(int)(symbol + ((m_bit_buf >> ofs) & 1));
+
+ // This should never happen, but to be safe I'm turning these asserts into a run-time check.
+ if ((idx >= JPGD_HUFF_TREE_MAX_LENGTH) || (ofs < 0))
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ symbol = pH->tree[idx];
+ ofs--;
+ } while (symbol < 0);
+
+ get_bits_no_markers(8 + (23 - ofs));
+
+ extra_bits = get_bits_no_markers(symbol & 0xF);
+ }
+ else
+ {
+ if (symbol & 0x8000)
+ {
+ //get_bits_no_markers((symbol >> 8) & 31);
+ assert(((symbol >> 8) & 31) <= 15);
+ get_bits_no_markers((symbol >> 8) & 15);
+ extra_bits = symbol >> 16;
+ }
+ else
+ {
+ int code_size = (symbol >> 8) & 31;
+ int num_extra_bits = symbol & 0xF;
+ int bits = code_size + num_extra_bits;
+
+ if (bits <= 16)
+ extra_bits = get_bits_no_markers(bits) & ((1 << num_extra_bits) - 1);
+ else
+ {
+ get_bits_no_markers(code_size);
+ extra_bits = get_bits_no_markers(num_extra_bits);
+ }
+ }
+
+ symbol &= 0xFF;
+ }
+
+ return symbol;
+ }
+
+ // Tables and macro used to fully decode the DPCM differences.
+ static const int s_extend_test[16] = { 0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 };
+ static const int s_extend_offset[16] = { 0, -1, -3, -7, -15, -31, -63, -127, -255, -511, -1023, -2047, -4095, -8191, -16383, -32767 };
+ //static const int s_extend_mask[] = { 0, (1 << 0), (1 << 1), (1 << 2), (1 << 3), (1 << 4), (1 << 5), (1 << 6), (1 << 7), (1 << 8), (1 << 9), (1 << 10), (1 << 11), (1 << 12), (1 << 13), (1 << 14), (1 << 15), (1 << 16) };
+
#define JPGD_HUFF_EXTEND(x, s) (((x) < s_extend_test[s & 15]) ? ((x) + s_extend_offset[s & 15]) : (x))
-// Clamps a value between 0-255.
-inline uint8 jpeg_decoder::clamp(int i)
-{
- if (static_cast<uint>(i) > 255)
- i = (((~i) >> 31) & 0xFF);
-
- return static_cast<uint8>(i);
-}
-
-namespace DCT_Upsample
-{
- struct Matrix44
- {
- typedef int Element_Type;
- enum { NUM_ROWS = 4, NUM_COLS = 4 };
-
- Element_Type v[NUM_ROWS][NUM_COLS];
-
- inline int rows() const { return NUM_ROWS; }
- inline int cols() const { return NUM_COLS; }
-
- inline const Element_Type & at(int r, int c) const { return v[r][c]; }
- inline Element_Type & at(int r, int c) { return v[r][c]; }
-
- inline Matrix44() { }
-
- inline Matrix44& operator += (const Matrix44& a)
- {
- for (int r = 0; r < NUM_ROWS; r++)
- {
- at(r, 0) += a.at(r, 0);
- at(r, 1) += a.at(r, 1);
- at(r, 2) += a.at(r, 2);
- at(r, 3) += a.at(r, 3);
- }
- return *this;
- }
-
- inline Matrix44& operator -= (const Matrix44& a)
- {
- for (int r = 0; r < NUM_ROWS; r++)
- {
- at(r, 0) -= a.at(r, 0);
- at(r, 1) -= a.at(r, 1);
- at(r, 2) -= a.at(r, 2);
- at(r, 3) -= a.at(r, 3);
- }
- return *this;
- }
-
- friend inline Matrix44 operator + (const Matrix44& a, const Matrix44& b)
- {
- Matrix44 ret;
- for (int r = 0; r < NUM_ROWS; r++)
- {
- ret.at(r, 0) = a.at(r, 0) + b.at(r, 0);
- ret.at(r, 1) = a.at(r, 1) + b.at(r, 1);
- ret.at(r, 2) = a.at(r, 2) + b.at(r, 2);
- ret.at(r, 3) = a.at(r, 3) + b.at(r, 3);
- }
- return ret;
- }
-
- friend inline Matrix44 operator - (const Matrix44& a, const Matrix44& b)
- {
- Matrix44 ret;
- for (int r = 0; r < NUM_ROWS; r++)
- {
- ret.at(r, 0) = a.at(r, 0) - b.at(r, 0);
- ret.at(r, 1) = a.at(r, 1) - b.at(r, 1);
- ret.at(r, 2) = a.at(r, 2) - b.at(r, 2);
- ret.at(r, 3) = a.at(r, 3) - b.at(r, 3);
- }
- return ret;
- }
-
- static inline void add_and_store(jpgd_block_t* pDst, const Matrix44& a, const Matrix44& b)
- {
- for (int r = 0; r < 4; r++)
- {
- pDst[0*8 + r] = static_cast<jpgd_block_t>(a.at(r, 0) + b.at(r, 0));
- pDst[1*8 + r] = static_cast<jpgd_block_t>(a.at(r, 1) + b.at(r, 1));
- pDst[2*8 + r] = static_cast<jpgd_block_t>(a.at(r, 2) + b.at(r, 2));
- pDst[3*8 + r] = static_cast<jpgd_block_t>(a.at(r, 3) + b.at(r, 3));
- }
- }
-
- static inline void sub_and_store(jpgd_block_t* pDst, const Matrix44& a, const Matrix44& b)
- {
- for (int r = 0; r < 4; r++)
- {
- pDst[0*8 + r] = static_cast<jpgd_block_t>(a.at(r, 0) - b.at(r, 0));
- pDst[1*8 + r] = static_cast<jpgd_block_t>(a.at(r, 1) - b.at(r, 1));
- pDst[2*8 + r] = static_cast<jpgd_block_t>(a.at(r, 2) - b.at(r, 2));
- pDst[3*8 + r] = static_cast<jpgd_block_t>(a.at(r, 3) - b.at(r, 3));
- }
- }
- };
-
- const int FRACT_BITS = 10;
- const int SCALE = 1 << FRACT_BITS;
-
- typedef int Temp_Type;
- #define D(i) (((i) + (SCALE >> 1)) >> FRACT_BITS)
- #define F(i) ((int)((i) * SCALE + .5f))
-
- // Any decent C++ compiler will optimize this at compile time to a 0, or an array access.
- #define AT(c, r) ((((c)>=NUM_COLS)||((r)>=NUM_ROWS)) ? 0 : pSrc[(c)+(r)*8])
-
- // NUM_ROWS/NUM_COLS = # of non-zero rows/cols in input matrix
- template<int NUM_ROWS, int NUM_COLS>
- struct P_Q
- {
- static void calc(Matrix44& P, Matrix44& Q, const jpgd_block_t* pSrc)
- {
- // 4x8 = 4x8 times 8x8, matrix 0 is constant
- const Temp_Type X000 = AT(0, 0);
- const Temp_Type X001 = AT(0, 1);
- const Temp_Type X002 = AT(0, 2);
- const Temp_Type X003 = AT(0, 3);
- const Temp_Type X004 = AT(0, 4);
- const Temp_Type X005 = AT(0, 5);
- const Temp_Type X006 = AT(0, 6);
- const Temp_Type X007 = AT(0, 7);
- const Temp_Type X010 = D(F(0.415735f) * AT(1, 0) + F(0.791065f) * AT(3, 0) + F(-0.352443f) * AT(5, 0) + F(0.277785f) * AT(7, 0));
- const Temp_Type X011 = D(F(0.415735f) * AT(1, 1) + F(0.791065f) * AT(3, 1) + F(-0.352443f) * AT(5, 1) + F(0.277785f) * AT(7, 1));
- const Temp_Type X012 = D(F(0.415735f) * AT(1, 2) + F(0.791065f) * AT(3, 2) + F(-0.352443f) * AT(5, 2) + F(0.277785f) * AT(7, 2));
- const Temp_Type X013 = D(F(0.415735f) * AT(1, 3) + F(0.791065f) * AT(3, 3) + F(-0.352443f) * AT(5, 3) + F(0.277785f) * AT(7, 3));
- const Temp_Type X014 = D(F(0.415735f) * AT(1, 4) + F(0.791065f) * AT(3, 4) + F(-0.352443f) * AT(5, 4) + F(0.277785f) * AT(7, 4));
- const Temp_Type X015 = D(F(0.415735f) * AT(1, 5) + F(0.791065f) * AT(3, 5) + F(-0.352443f) * AT(5, 5) + F(0.277785f) * AT(7, 5));
- const Temp_Type X016 = D(F(0.415735f) * AT(1, 6) + F(0.791065f) * AT(3, 6) + F(-0.352443f) * AT(5, 6) + F(0.277785f) * AT(7, 6));
- const Temp_Type X017 = D(F(0.415735f) * AT(1, 7) + F(0.791065f) * AT(3, 7) + F(-0.352443f) * AT(5, 7) + F(0.277785f) * AT(7, 7));
- const Temp_Type X020 = AT(4, 0);
- const Temp_Type X021 = AT(4, 1);
- const Temp_Type X022 = AT(4, 2);
- const Temp_Type X023 = AT(4, 3);
- const Temp_Type X024 = AT(4, 4);
- const Temp_Type X025 = AT(4, 5);
- const Temp_Type X026 = AT(4, 6);
- const Temp_Type X027 = AT(4, 7);
- const Temp_Type X030 = D(F(0.022887f) * AT(1, 0) + F(-0.097545f) * AT(3, 0) + F(0.490393f) * AT(5, 0) + F(0.865723f) * AT(7, 0));
- const Temp_Type X031 = D(F(0.022887f) * AT(1, 1) + F(-0.097545f) * AT(3, 1) + F(0.490393f) * AT(5, 1) + F(0.865723f) * AT(7, 1));
- const Temp_Type X032 = D(F(0.022887f) * AT(1, 2) + F(-0.097545f) * AT(3, 2) + F(0.490393f) * AT(5, 2) + F(0.865723f) * AT(7, 2));
- const Temp_Type X033 = D(F(0.022887f) * AT(1, 3) + F(-0.097545f) * AT(3, 3) + F(0.490393f) * AT(5, 3) + F(0.865723f) * AT(7, 3));
- const Temp_Type X034 = D(F(0.022887f) * AT(1, 4) + F(-0.097545f) * AT(3, 4) + F(0.490393f) * AT(5, 4) + F(0.865723f) * AT(7, 4));
- const Temp_Type X035 = D(F(0.022887f) * AT(1, 5) + F(-0.097545f) * AT(3, 5) + F(0.490393f) * AT(5, 5) + F(0.865723f) * AT(7, 5));
- const Temp_Type X036 = D(F(0.022887f) * AT(1, 6) + F(-0.097545f) * AT(3, 6) + F(0.490393f) * AT(5, 6) + F(0.865723f) * AT(7, 6));
- const Temp_Type X037 = D(F(0.022887f) * AT(1, 7) + F(-0.097545f) * AT(3, 7) + F(0.490393f) * AT(5, 7) + F(0.865723f) * AT(7, 7));
-
- // 4x4 = 4x8 times 8x4, matrix 1 is constant
- P.at(0, 0) = X000;
- P.at(0, 1) = D(X001 * F(0.415735f) + X003 * F(0.791065f) + X005 * F(-0.352443f) + X007 * F(0.277785f));
- P.at(0, 2) = X004;
- P.at(0, 3) = D(X001 * F(0.022887f) + X003 * F(-0.097545f) + X005 * F(0.490393f) + X007 * F(0.865723f));
- P.at(1, 0) = X010;
- P.at(1, 1) = D(X011 * F(0.415735f) + X013 * F(0.791065f) + X015 * F(-0.352443f) + X017 * F(0.277785f));
- P.at(1, 2) = X014;
- P.at(1, 3) = D(X011 * F(0.022887f) + X013 * F(-0.097545f) + X015 * F(0.490393f) + X017 * F(0.865723f));
- P.at(2, 0) = X020;
- P.at(2, 1) = D(X021 * F(0.415735f) + X023 * F(0.791065f) + X025 * F(-0.352443f) + X027 * F(0.277785f));
- P.at(2, 2) = X024;
- P.at(2, 3) = D(X021 * F(0.022887f) + X023 * F(-0.097545f) + X025 * F(0.490393f) + X027 * F(0.865723f));
- P.at(3, 0) = X030;
- P.at(3, 1) = D(X031 * F(0.415735f) + X033 * F(0.791065f) + X035 * F(-0.352443f) + X037 * F(0.277785f));
- P.at(3, 2) = X034;
- P.at(3, 3) = D(X031 * F(0.022887f) + X033 * F(-0.097545f) + X035 * F(0.490393f) + X037 * F(0.865723f));
- // 40 muls 24 adds
-
- // 4x4 = 4x8 times 8x4, matrix 1 is constant
- Q.at(0, 0) = D(X001 * F(0.906127f) + X003 * F(-0.318190f) + X005 * F(0.212608f) + X007 * F(-0.180240f));
- Q.at(0, 1) = X002;
- Q.at(0, 2) = D(X001 * F(-0.074658f) + X003 * F(0.513280f) + X005 * F(0.768178f) + X007 * F(-0.375330f));
- Q.at(0, 3) = X006;
- Q.at(1, 0) = D(X011 * F(0.906127f) + X013 * F(-0.318190f) + X015 * F(0.212608f) + X017 * F(-0.180240f));
- Q.at(1, 1) = X012;
- Q.at(1, 2) = D(X011 * F(-0.074658f) + X013 * F(0.513280f) + X015 * F(0.768178f) + X017 * F(-0.375330f));
- Q.at(1, 3) = X016;
- Q.at(2, 0) = D(X021 * F(0.906127f) + X023 * F(-0.318190f) + X025 * F(0.212608f) + X027 * F(-0.180240f));
- Q.at(2, 1) = X022;
- Q.at(2, 2) = D(X021 * F(-0.074658f) + X023 * F(0.513280f) + X025 * F(0.768178f) + X027 * F(-0.375330f));
- Q.at(2, 3) = X026;
- Q.at(3, 0) = D(X031 * F(0.906127f) + X033 * F(-0.318190f) + X035 * F(0.212608f) + X037 * F(-0.180240f));
- Q.at(3, 1) = X032;
- Q.at(3, 2) = D(X031 * F(-0.074658f) + X033 * F(0.513280f) + X035 * F(0.768178f) + X037 * F(-0.375330f));
- Q.at(3, 3) = X036;
- // 40 muls 24 adds
- }
- };
-
- template<int NUM_ROWS, int NUM_COLS>
- struct R_S
- {
- static void calc(Matrix44& R, Matrix44& S, const jpgd_block_t* pSrc)
- {
- // 4x8 = 4x8 times 8x8, matrix 0 is constant
- const Temp_Type X100 = D(F(0.906127f) * AT(1, 0) + F(-0.318190f) * AT(3, 0) + F(0.212608f) * AT(5, 0) + F(-0.180240f) * AT(7, 0));
- const Temp_Type X101 = D(F(0.906127f) * AT(1, 1) + F(-0.318190f) * AT(3, 1) + F(0.212608f) * AT(5, 1) + F(-0.180240f) * AT(7, 1));
- const Temp_Type X102 = D(F(0.906127f) * AT(1, 2) + F(-0.318190f) * AT(3, 2) + F(0.212608f) * AT(5, 2) + F(-0.180240f) * AT(7, 2));
- const Temp_Type X103 = D(F(0.906127f) * AT(1, 3) + F(-0.318190f) * AT(3, 3) + F(0.212608f) * AT(5, 3) + F(-0.180240f) * AT(7, 3));
- const Temp_Type X104 = D(F(0.906127f) * AT(1, 4) + F(-0.318190f) * AT(3, 4) + F(0.212608f) * AT(5, 4) + F(-0.180240f) * AT(7, 4));
- const Temp_Type X105 = D(F(0.906127f) * AT(1, 5) + F(-0.318190f) * AT(3, 5) + F(0.212608f) * AT(5, 5) + F(-0.180240f) * AT(7, 5));
- const Temp_Type X106 = D(F(0.906127f) * AT(1, 6) + F(-0.318190f) * AT(3, 6) + F(0.212608f) * AT(5, 6) + F(-0.180240f) * AT(7, 6));
- const Temp_Type X107 = D(F(0.906127f) * AT(1, 7) + F(-0.318190f) * AT(3, 7) + F(0.212608f) * AT(5, 7) + F(-0.180240f) * AT(7, 7));
- const Temp_Type X110 = AT(2, 0);
- const Temp_Type X111 = AT(2, 1);
- const Temp_Type X112 = AT(2, 2);
- const Temp_Type X113 = AT(2, 3);
- const Temp_Type X114 = AT(2, 4);
- const Temp_Type X115 = AT(2, 5);
- const Temp_Type X116 = AT(2, 6);
- const Temp_Type X117 = AT(2, 7);
- const Temp_Type X120 = D(F(-0.074658f) * AT(1, 0) + F(0.513280f) * AT(3, 0) + F(0.768178f) * AT(5, 0) + F(-0.375330f) * AT(7, 0));
- const Temp_Type X121 = D(F(-0.074658f) * AT(1, 1) + F(0.513280f) * AT(3, 1) + F(0.768178f) * AT(5, 1) + F(-0.375330f) * AT(7, 1));
- const Temp_Type X122 = D(F(-0.074658f) * AT(1, 2) + F(0.513280f) * AT(3, 2) + F(0.768178f) * AT(5, 2) + F(-0.375330f) * AT(7, 2));
- const Temp_Type X123 = D(F(-0.074658f) * AT(1, 3) + F(0.513280f) * AT(3, 3) + F(0.768178f) * AT(5, 3) + F(-0.375330f) * AT(7, 3));
- const Temp_Type X124 = D(F(-0.074658f) * AT(1, 4) + F(0.513280f) * AT(3, 4) + F(0.768178f) * AT(5, 4) + F(-0.375330f) * AT(7, 4));
- const Temp_Type X125 = D(F(-0.074658f) * AT(1, 5) + F(0.513280f) * AT(3, 5) + F(0.768178f) * AT(5, 5) + F(-0.375330f) * AT(7, 5));
- const Temp_Type X126 = D(F(-0.074658f) * AT(1, 6) + F(0.513280f) * AT(3, 6) + F(0.768178f) * AT(5, 6) + F(-0.375330f) * AT(7, 6));
- const Temp_Type X127 = D(F(-0.074658f) * AT(1, 7) + F(0.513280f) * AT(3, 7) + F(0.768178f) * AT(5, 7) + F(-0.375330f) * AT(7, 7));
- const Temp_Type X130 = AT(6, 0);
- const Temp_Type X131 = AT(6, 1);
- const Temp_Type X132 = AT(6, 2);
- const Temp_Type X133 = AT(6, 3);
- const Temp_Type X134 = AT(6, 4);
- const Temp_Type X135 = AT(6, 5);
- const Temp_Type X136 = AT(6, 6);
- const Temp_Type X137 = AT(6, 7);
- // 80 muls 48 adds
-
- // 4x4 = 4x8 times 8x4, matrix 1 is constant
- R.at(0, 0) = X100;
- R.at(0, 1) = D(X101 * F(0.415735f) + X103 * F(0.791065f) + X105 * F(-0.352443f) + X107 * F(0.277785f));
- R.at(0, 2) = X104;
- R.at(0, 3) = D(X101 * F(0.022887f) + X103 * F(-0.097545f) + X105 * F(0.490393f) + X107 * F(0.865723f));
- R.at(1, 0) = X110;
- R.at(1, 1) = D(X111 * F(0.415735f) + X113 * F(0.791065f) + X115 * F(-0.352443f) + X117 * F(0.277785f));
- R.at(1, 2) = X114;
- R.at(1, 3) = D(X111 * F(0.022887f) + X113 * F(-0.097545f) + X115 * F(0.490393f) + X117 * F(0.865723f));
- R.at(2, 0) = X120;
- R.at(2, 1) = D(X121 * F(0.415735f) + X123 * F(0.791065f) + X125 * F(-0.352443f) + X127 * F(0.277785f));
- R.at(2, 2) = X124;
- R.at(2, 3) = D(X121 * F(0.022887f) + X123 * F(-0.097545f) + X125 * F(0.490393f) + X127 * F(0.865723f));
- R.at(3, 0) = X130;
- R.at(3, 1) = D(X131 * F(0.415735f) + X133 * F(0.791065f) + X135 * F(-0.352443f) + X137 * F(0.277785f));
- R.at(3, 2) = X134;
- R.at(3, 3) = D(X131 * F(0.022887f) + X133 * F(-0.097545f) + X135 * F(0.490393f) + X137 * F(0.865723f));
- // 40 muls 24 adds
- // 4x4 = 4x8 times 8x4, matrix 1 is constant
- S.at(0, 0) = D(X101 * F(0.906127f) + X103 * F(-0.318190f) + X105 * F(0.212608f) + X107 * F(-0.180240f));
- S.at(0, 1) = X102;
- S.at(0, 2) = D(X101 * F(-0.074658f) + X103 * F(0.513280f) + X105 * F(0.768178f) + X107 * F(-0.375330f));
- S.at(0, 3) = X106;
- S.at(1, 0) = D(X111 * F(0.906127f) + X113 * F(-0.318190f) + X115 * F(0.212608f) + X117 * F(-0.180240f));
- S.at(1, 1) = X112;
- S.at(1, 2) = D(X111 * F(-0.074658f) + X113 * F(0.513280f) + X115 * F(0.768178f) + X117 * F(-0.375330f));
- S.at(1, 3) = X116;
- S.at(2, 0) = D(X121 * F(0.906127f) + X123 * F(-0.318190f) + X125 * F(0.212608f) + X127 * F(-0.180240f));
- S.at(2, 1) = X122;
- S.at(2, 2) = D(X121 * F(-0.074658f) + X123 * F(0.513280f) + X125 * F(0.768178f) + X127 * F(-0.375330f));
- S.at(2, 3) = X126;
- S.at(3, 0) = D(X131 * F(0.906127f) + X133 * F(-0.318190f) + X135 * F(0.212608f) + X137 * F(-0.180240f));
- S.at(3, 1) = X132;
- S.at(3, 2) = D(X131 * F(-0.074658f) + X133 * F(0.513280f) + X135 * F(0.768178f) + X137 * F(-0.375330f));
- S.at(3, 3) = X136;
- // 40 muls 24 adds
- }
- };
-} // end namespace DCT_Upsample
-
-// Unconditionally frees all allocated m_blocks.
-void jpeg_decoder::free_all_blocks()
-{
- m_pStream = NULL;
- for (mem_block *b = m_pMem_blocks; b; )
- {
- mem_block *n = b->m_pNext;
- jpgd_free(b);
- b = n;
- }
- m_pMem_blocks = NULL;
-}
-
-// This method handles all errors. It will never return.
-// It could easily be changed to use C++ exceptions.
-JPGD_NORETURN void jpeg_decoder::stop_decoding(jpgd_status status)
-{
- m_error_code = status;
- free_all_blocks();
- longjmp(m_jmp_state, status);
-}
-
-void *jpeg_decoder::alloc(size_t nSize, bool zero)
-{
- nSize = (JPGD_MAX(nSize, 1) + 3) & ~3;
- char *rv = NULL;
- for (mem_block *b = m_pMem_blocks; b; b = b->m_pNext)
- {
- if ((b->m_used_count + nSize) <= b->m_size)
- {
- rv = b->m_data + b->m_used_count;
- b->m_used_count += nSize;
- break;
- }
- }
- if (!rv)
- {
- int capacity = JPGD_MAX(32768 - 256, (nSize + 2047) & ~2047);
- mem_block *b = (mem_block*)jpgd_malloc(sizeof(mem_block) + capacity);
- if (!b) { stop_decoding(JPGD_NOTENOUGHMEM); }
- b->m_pNext = m_pMem_blocks; m_pMem_blocks = b;
- b->m_used_count = nSize;
- b->m_size = capacity;
- rv = b->m_data;
- }
- if (zero) memset(rv, 0, nSize);
- return rv;
-}
-
-void jpeg_decoder::word_clear(void *p, uint16 c, uint n)
-{
- uint8 *pD = (uint8*)p;
- const uint8 l = c & 0xFF, h = (c >> 8) & 0xFF;
- while (n)
- {
- pD[0] = l; pD[1] = h; pD += 2;
- n--;
- }
-}
-
-// Refill the input buffer.
-// This method will sit in a loop until (A) the buffer is full or (B)
-// the stream's read() method reports and end of file condition.
-void jpeg_decoder::prep_in_buffer()
-{
- m_in_buf_left = 0;
- m_pIn_buf_ofs = m_in_buf;
-
- if (m_eof_flag)
- return;
-
- do
- {
- int bytes_read = m_pStream->read(m_in_buf + m_in_buf_left, JPGD_IN_BUF_SIZE - m_in_buf_left, &m_eof_flag);
- if (bytes_read == -1)
- stop_decoding(JPGD_STREAM_READ);
-
- m_in_buf_left += bytes_read;
- } while ((m_in_buf_left < JPGD_IN_BUF_SIZE) && (!m_eof_flag));
-
- m_total_bytes_read += m_in_buf_left;
-
- // Pad the end of the block with M_EOI (prevents the decompressor from going off the rails if the stream is invalid).
- // (This dates way back to when this decompressor was written in C/asm, and the all-asm Huffman decoder did some fancy things to increase perf.)
- word_clear(m_pIn_buf_ofs + m_in_buf_left, 0xD9FF, 64);
-}
-
-// Read a Huffman code table.
-void jpeg_decoder::read_dht_marker()
-{
- int i, index, count;
- uint8 huff_num[17];
- uint8 huff_val[256];
-
- uint num_left = get_bits(16);
-
- if (num_left < 2)
- stop_decoding(JPGD_BAD_DHT_MARKER);
-
- num_left -= 2;
-
- while (num_left)
- {
- index = get_bits(8);
-
- huff_num[0] = 0;
-
- count = 0;
-
- for (i = 1; i <= 16; i++)
- {
- huff_num[i] = static_cast<uint8>(get_bits(8));
- count += huff_num[i];
- }
-
- if (count > 255)
- stop_decoding(JPGD_BAD_DHT_COUNTS);
-
- for (i = 0; i < count; i++)
- huff_val[i] = static_cast<uint8>(get_bits(8));
+ // Unconditionally frees all allocated m_blocks.
+ void jpeg_decoder::free_all_blocks()
+ {
+ m_pStream = nullptr;
+ for (mem_block* b = m_pMem_blocks; b; )
+ {
+ mem_block* n = b->m_pNext;
+ jpgd_free(b);
+ b = n;
+ }
+ m_pMem_blocks = nullptr;
+ }
+
+ // This method handles all errors. It will never return.
+ // It could easily be changed to use C++ exceptions.
+ JPGD_NORETURN void jpeg_decoder::stop_decoding(jpgd_status status)
+ {
+ m_error_code = status;
+ free_all_blocks();
+ longjmp(m_jmp_state, status);
+ }
+
+ void* jpeg_decoder::alloc(size_t nSize, bool zero)
+ {
+ nSize = (JPGD_MAX(nSize, 1) + 3) & ~3;
+ char* rv = nullptr;
+ for (mem_block* b = m_pMem_blocks; b; b = b->m_pNext)
+ {
+ if ((b->m_used_count + nSize) <= b->m_size)
+ {
+ rv = b->m_data + b->m_used_count;
+ b->m_used_count += nSize;
+ break;
+ }
+ }
+ if (!rv)
+ {
+ int capacity = JPGD_MAX(32768 - 256, (nSize + 2047) & ~2047);
+ mem_block* b = (mem_block*)jpgd_malloc(sizeof(mem_block) + capacity);
+ if (!b)
+ {
+ stop_decoding(JPGD_NOTENOUGHMEM);
+ }
+
+ b->m_pNext = m_pMem_blocks;
+ m_pMem_blocks = b;
+ b->m_used_count = nSize;
+ b->m_size = capacity;
+ rv = b->m_data;
+ }
+ if (zero) memset(rv, 0, nSize);
+ return rv;
+ }
+
+ void* jpeg_decoder::alloc_aligned(size_t nSize, uint32_t align, bool zero)
+ {
+ assert((align >= 1U) && ((align & (align - 1U)) == 0U));
+ void *p = alloc(nSize + align - 1U, zero);
+ p = (void *)( ((uintptr_t)p + (align - 1U)) & ~((uintptr_t)(align - 1U)) );
+ return p;
+ }
+
+ void jpeg_decoder::word_clear(void* p, uint16 c, uint n)
+ {
+ uint8* pD = (uint8*)p;
+ const uint8 l = c & 0xFF, h = (c >> 8) & 0xFF;
+ while (n)
+ {
+ pD[0] = l;
+ pD[1] = h;
+ pD += 2;
+ n--;
+ }
+ }
+
+ // Refill the input buffer.
+ // This method will sit in a loop until (A) the buffer is full or (B)
+ // the stream's read() method reports and end of file condition.
+ void jpeg_decoder::prep_in_buffer()
+ {
+ m_in_buf_left = 0;
+ m_pIn_buf_ofs = m_in_buf;
+
+ if (m_eof_flag)
+ return;
+
+ do
+ {
+ int bytes_read = m_pStream->read(m_in_buf + m_in_buf_left, JPGD_IN_BUF_SIZE - m_in_buf_left, &m_eof_flag);
+ if (bytes_read == -1)
+ stop_decoding(JPGD_STREAM_READ);
+
+ m_in_buf_left += bytes_read;
+ } while ((m_in_buf_left < JPGD_IN_BUF_SIZE) && (!m_eof_flag));
+
+ m_total_bytes_read += m_in_buf_left;
+
+ // Pad the end of the block with M_EOI (prevents the decompressor from going off the rails if the stream is invalid).
+ // (This dates way back to when this decompressor was written in C/asm, and the all-asm Huffman decoder did some fancy things to increase perf.)
+ word_clear(m_pIn_buf_ofs + m_in_buf_left, 0xD9FF, 64);
+ }
+
+ // Read a Huffman code table.
+ void jpeg_decoder::read_dht_marker()
+ {
+ int i, index, count;
+ uint8 huff_num[17];
+ uint8 huff_val[256];
+
+ uint num_left = get_bits(16);
+
+ if (num_left < 2)
+ stop_decoding(JPGD_BAD_DHT_MARKER);
+
+ num_left -= 2;
+
+ while (num_left)
+ {
+ index = get_bits(8);
+
+ huff_num[0] = 0;
+
+ count = 0;
+
+ for (i = 1; i <= 16; i++)
+ {
+ huff_num[i] = static_cast<uint8>(get_bits(8));
+ count += huff_num[i];
+ }
+
+ if (count > 255)
+ stop_decoding(JPGD_BAD_DHT_COUNTS);
+
+ bool symbol_present[256];
+ memset(symbol_present, 0, sizeof(symbol_present));
- i = 1 + 16 + count;
+ for (i = 0; i < count; i++)
+ {
+ const int s = get_bits(8);
+
+ // Check for obviously bogus tables.
+ if (symbol_present[s])
+ stop_decoding(JPGD_BAD_DHT_COUNTS);
+
+ huff_val[i] = static_cast<uint8_t>(s);
+ symbol_present[s] = true;
+ }
- if (num_left < (uint)i)
- stop_decoding(JPGD_BAD_DHT_MARKER);
+ i = 1 + 16 + count;
- num_left -= i;
+ if (num_left < (uint)i)
+ stop_decoding(JPGD_BAD_DHT_MARKER);
- if ((index & 0x10) > 0x10)
- stop_decoding(JPGD_BAD_DHT_INDEX);
+ num_left -= i;
- index = (index & 0x0F) + ((index & 0x10) >> 4) * (JPGD_MAX_HUFF_TABLES >> 1);
+ if ((index & 0x10) > 0x10)
+ stop_decoding(JPGD_BAD_DHT_INDEX);
- if (index >= JPGD_MAX_HUFF_TABLES)
- stop_decoding(JPGD_BAD_DHT_INDEX);
+ index = (index & 0x0F) + ((index & 0x10) >> 4) * (JPGD_MAX_HUFF_TABLES >> 1);
- if (!m_huff_num[index])
- m_huff_num[index] = (uint8 *)alloc(17);
+ if (index >= JPGD_MAX_HUFF_TABLES)
+ stop_decoding(JPGD_BAD_DHT_INDEX);
- if (!m_huff_val[index])
- m_huff_val[index] = (uint8 *)alloc(256);
+ if (!m_huff_num[index])
+ m_huff_num[index] = (uint8*)alloc(17);
- m_huff_ac[index] = (index & 0x10) != 0;
- memcpy(m_huff_num[index], huff_num, 17);
- memcpy(m_huff_val[index], huff_val, 256);
- }
-}
+ if (!m_huff_val[index])
+ m_huff_val[index] = (uint8*)alloc(256);
-// Read a quantization table.
-void jpeg_decoder::read_dqt_marker()
-{
- int n, i, prec;
- uint num_left;
- uint temp;
+ m_huff_ac[index] = (index & 0x10) != 0;
+ memcpy(m_huff_num[index], huff_num, 17);
+ memcpy(m_huff_val[index], huff_val, 256);
+ }
+ }
- num_left = get_bits(16);
+ // Read a quantization table.
+ void jpeg_decoder::read_dqt_marker()
+ {
+ int n, i, prec;
+ uint num_left;
+ uint temp;
- if (num_left < 2)
- stop_decoding(JPGD_BAD_DQT_MARKER);
+ num_left = get_bits(16);
- num_left -= 2;
+ if (num_left < 2)
+ stop_decoding(JPGD_BAD_DQT_MARKER);
- while (num_left)
- {
- n = get_bits(8);
- prec = n >> 4;
- n &= 0x0F;
+ num_left -= 2;
- if (n >= JPGD_MAX_QUANT_TABLES)
- stop_decoding(JPGD_BAD_DQT_TABLE);
+ while (num_left)
+ {
+ n = get_bits(8);
+ prec = n >> 4;
+ n &= 0x0F;
- if (!m_quant[n])
- m_quant[n] = (jpgd_quant_t *)alloc(64 * sizeof(jpgd_quant_t));
+ if (n >= JPGD_MAX_QUANT_TABLES)
+ stop_decoding(JPGD_BAD_DQT_TABLE);
- // read quantization entries, in zag order
- for (i = 0; i < 64; i++)
- {
- temp = get_bits(8);
+ if (!m_quant[n])
+ m_quant[n] = (jpgd_quant_t*)alloc(64 * sizeof(jpgd_quant_t));
- if (prec)
- temp = (temp << 8) + get_bits(8);
+ // read quantization entries, in zag order
+ for (i = 0; i < 64; i++)
+ {
+ temp = get_bits(8);
- m_quant[n][i] = static_cast<jpgd_quant_t>(temp);
- }
+ if (prec)
+ temp = (temp << 8) + get_bits(8);
- i = 64 + 1;
+ m_quant[n][i] = static_cast<jpgd_quant_t>(temp);
+ }
- if (prec)
- i += 64;
+ i = 64 + 1;
- if (num_left < (uint)i)
- stop_decoding(JPGD_BAD_DQT_LENGTH);
+ if (prec)
+ i += 64;
- num_left -= i;
- }
-}
+ if (num_left < (uint)i)
+ stop_decoding(JPGD_BAD_DQT_LENGTH);
-// Read the start of frame (SOF) marker.
-void jpeg_decoder::read_sof_marker()
-{
- int i;
- uint num_left;
+ num_left -= i;
+ }
+ }
- num_left = get_bits(16);
+ // Read the start of frame (SOF) marker.
+ void jpeg_decoder::read_sof_marker()
+ {
+ int i;
+ uint num_left;
- if (get_bits(8) != 8) /* precision: sorry, only 8-bit precision is supported right now */
- stop_decoding(JPGD_BAD_PRECISION);
+ num_left = get_bits(16);
- m_image_y_size = get_bits(16);
+ /* precision: sorry, only 8-bit precision is supported */
+ if (get_bits(8) != 8)
+ stop_decoding(JPGD_BAD_PRECISION);
- if ((m_image_y_size < 1) || (m_image_y_size > JPGD_MAX_HEIGHT))
- stop_decoding(JPGD_BAD_HEIGHT);
+ m_image_y_size = get_bits(16);
- m_image_x_size = get_bits(16);
+ if ((m_image_y_size < 1) || (m_image_y_size > JPGD_MAX_HEIGHT))
+ stop_decoding(JPGD_BAD_HEIGHT);
- if ((m_image_x_size < 1) || (m_image_x_size > JPGD_MAX_WIDTH))
- stop_decoding(JPGD_BAD_WIDTH);
+ m_image_x_size = get_bits(16);
- m_comps_in_frame = get_bits(8);
+ if ((m_image_x_size < 1) || (m_image_x_size > JPGD_MAX_WIDTH))
+ stop_decoding(JPGD_BAD_WIDTH);
- if (m_comps_in_frame > JPGD_MAX_COMPONENTS)
- stop_decoding(JPGD_TOO_MANY_COMPONENTS);
+ m_comps_in_frame = get_bits(8);
- if (num_left != (uint)(m_comps_in_frame * 3 + 8))
- stop_decoding(JPGD_BAD_SOF_LENGTH);
+ if (m_comps_in_frame > JPGD_MAX_COMPONENTS)
+ stop_decoding(JPGD_TOO_MANY_COMPONENTS);
- for (i = 0; i < m_comps_in_frame; i++)
- {
- m_comp_ident[i] = get_bits(8);
- m_comp_h_samp[i] = get_bits(4);
- m_comp_v_samp[i] = get_bits(4);
- m_comp_quant[i] = get_bits(8);
- }
-}
+ if (num_left != (uint)(m_comps_in_frame * 3 + 8))
+ stop_decoding(JPGD_BAD_SOF_LENGTH);
-// Used to skip unrecognized markers.
-void jpeg_decoder::skip_variable_marker()
-{
- uint num_left;
+ for (i = 0; i < m_comps_in_frame; i++)
+ {
+ m_comp_ident[i] = get_bits(8);
+ m_comp_h_samp[i] = get_bits(4);
+ m_comp_v_samp[i] = get_bits(4);
- num_left = get_bits(16);
+ if (!m_comp_h_samp[i] || !m_comp_v_samp[i] || (m_comp_h_samp[i] > 2) || (m_comp_v_samp[i] > 2))
+ stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
- if (num_left < 2)
- stop_decoding(JPGD_BAD_VARIABLE_MARKER);
+ m_comp_quant[i] = get_bits(8);
+ if (m_comp_quant[i] >= JPGD_MAX_QUANT_TABLES)
+ stop_decoding(JPGD_DECODE_ERROR);
+ }
+ }
+
+ // Used to skip unrecognized markers.
+ void jpeg_decoder::skip_variable_marker()
+ {
+ uint num_left;
+
+ num_left = get_bits(16);
+
+ if (num_left < 2)
+ stop_decoding(JPGD_BAD_VARIABLE_MARKER);
+
+ num_left -= 2;
+
+ while (num_left)
+ {
+ get_bits(8);
+ num_left--;
+ }
+ }
+
+ // Read a define restart interval (DRI) marker.
+ void jpeg_decoder::read_dri_marker()
+ {
+ if (get_bits(16) != 4)
+ stop_decoding(JPGD_BAD_DRI_LENGTH);
+
+ m_restart_interval = get_bits(16);
+ }
+
+ // Read a start of scan (SOS) marker.
+ void jpeg_decoder::read_sos_marker()
+ {
+ uint num_left;
+ int i, ci, n, c, cc;
+
+ num_left = get_bits(16);
+
+ n = get_bits(8);
+
+ m_comps_in_scan = n;
+
+ num_left -= 3;
+
+ if ((num_left != (uint)(n * 2 + 3)) || (n < 1) || (n > JPGD_MAX_COMPS_IN_SCAN))
+ stop_decoding(JPGD_BAD_SOS_LENGTH);
+
+ for (i = 0; i < n; i++)
+ {
+ cc = get_bits(8);
+ c = get_bits(8);
+ num_left -= 2;
+
+ for (ci = 0; ci < m_comps_in_frame; ci++)
+ if (cc == m_comp_ident[ci])
+ break;
+
+ if (ci >= m_comps_in_frame)
+ stop_decoding(JPGD_BAD_SOS_COMP_ID);
+
+ if (ci >= JPGD_MAX_COMPONENTS)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ m_comp_list[i] = ci;
+
+ m_comp_dc_tab[ci] = (c >> 4) & 15;
+ m_comp_ac_tab[ci] = (c & 15) + (JPGD_MAX_HUFF_TABLES >> 1);
+
+ if (m_comp_dc_tab[ci] >= JPGD_MAX_HUFF_TABLES)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ if (m_comp_ac_tab[ci] >= JPGD_MAX_HUFF_TABLES)
+ stop_decoding(JPGD_DECODE_ERROR);
+ }
+
+ m_spectral_start = get_bits(8);
+ m_spectral_end = get_bits(8);
+ m_successive_high = get_bits(4);
+ m_successive_low = get_bits(4);
+
+ if (!m_progressive_flag)
+ {
+ m_spectral_start = 0;
+ m_spectral_end = 63;
+ }
+
+ num_left -= 3;
+
+ /* read past whatever is num_left */
+ while (num_left)
+ {
+ get_bits(8);
+ num_left--;
+ }
+ }
+
+ // Finds the next marker.
+ int jpeg_decoder::next_marker()
+ {
+ uint c, bytes;
+
+ bytes = 0;
+
+ do
+ {
+ do
+ {
+ bytes++;
+ c = get_bits(8);
+ } while (c != 0xFF);
- num_left -= 2;
+ do
+ {
+ c = get_bits(8);
+ } while (c == 0xFF);
+
+ } while (c == 0);
+
+ // If bytes > 0 here, there where extra bytes before the marker (not good).
+
+ return c;
+ }
+
+ // Process markers. Returns when an SOFx, SOI, EOI, or SOS marker is
+ // encountered.
+ int jpeg_decoder::process_markers()
+ {
+ int c;
+
+ for (; ; )
+ {
+ c = next_marker();
+
+ switch (c)
+ {
+ case M_SOF0:
+ case M_SOF1:
+ case M_SOF2:
+ case M_SOF3:
+ case M_SOF5:
+ case M_SOF6:
+ case M_SOF7:
+ // case M_JPG:
+ case M_SOF9:
+ case M_SOF10:
+ case M_SOF11:
+ case M_SOF13:
+ case M_SOF14:
+ case M_SOF15:
+ case M_SOI:
+ case M_EOI:
+ case M_SOS:
+ {
+ return c;
+ }
+ case M_DHT:
+ {
+ read_dht_marker();
+ break;
+ }
+ // No arithmitic support - dumb patents!
+ case M_DAC:
+ {
+ stop_decoding(JPGD_NO_ARITHMITIC_SUPPORT);
+ break;
+ }
+ case M_DQT:
+ {
+ read_dqt_marker();
+ break;
+ }
+ case M_DRI:
+ {
+ read_dri_marker();
+ break;
+ }
+ //case M_APP0: /* no need to read the JFIF marker */
+ case M_JPG:
+ case M_RST0: /* no parameters */
+ case M_RST1:
+ case M_RST2:
+ case M_RST3:
+ case M_RST4:
+ case M_RST5:
+ case M_RST6:
+ case M_RST7:
+ case M_TEM:
+ {
+ stop_decoding(JPGD_UNEXPECTED_MARKER);
+ break;
+ }
+ default: /* must be DNL, DHP, EXP, APPn, JPGn, COM, or RESn or APP0 */
+ {
+ skip_variable_marker();
+ break;
+ }
+ }
+ }
+ }
+
+ // Finds the start of image (SOI) marker.
+ void jpeg_decoder::locate_soi_marker()
+ {
+ uint lastchar, thischar;
+ uint bytesleft;
+
+ lastchar = get_bits(8);
+
+ thischar = get_bits(8);
+
+ /* ok if it's a normal JPEG file without a special header */
+
+ if ((lastchar == 0xFF) && (thischar == M_SOI))
+ return;
+
+ bytesleft = 4096;
+
+ for (; ; )
+ {
+ if (--bytesleft == 0)
+ stop_decoding(JPGD_NOT_JPEG);
+
+ lastchar = thischar;
+
+ thischar = get_bits(8);
+
+ if (lastchar == 0xFF)
+ {
+ if (thischar == M_SOI)
+ break;
+ else if (thischar == M_EOI) // get_bits will keep returning M_EOI if we read past the end
+ stop_decoding(JPGD_NOT_JPEG);
+ }
+ }
+
+ // Check the next character after marker: if it's not 0xFF, it can't be the start of the next marker, so the file is bad.
+ thischar = (m_bit_buf >> 24) & 0xFF;
+
+ if (thischar != 0xFF)
+ stop_decoding(JPGD_NOT_JPEG);
+ }
+
+ // Find a start of frame (SOF) marker.
+ void jpeg_decoder::locate_sof_marker()
+ {
+ locate_soi_marker();
+
+ int c = process_markers();
+
+ switch (c)
+ {
+ case M_SOF2:
+ {
+ m_progressive_flag = JPGD_TRUE;
+ read_sof_marker();
+ break;
+ }
+ case M_SOF0: /* baseline DCT */
+ case M_SOF1: /* extended sequential DCT */
+ {
+ read_sof_marker();
+ break;
+ }
+ case M_SOF9: /* Arithmitic coding */
+ {
+ stop_decoding(JPGD_NO_ARITHMITIC_SUPPORT);
+ break;
+ }
+ default:
+ {
+ stop_decoding(JPGD_UNSUPPORTED_MARKER);
+ break;
+ }
+ }
+ }
- while (num_left)
- {
- get_bits(8);
- num_left--;
- }
-}
+ // Find a start of scan (SOS) marker.
+ int jpeg_decoder::locate_sos_marker()
+ {
+ int c;
-// Read a define restart interval (DRI) marker.
-void jpeg_decoder::read_dri_marker()
-{
- if (get_bits(16) != 4)
- stop_decoding(JPGD_BAD_DRI_LENGTH);
+ c = process_markers();
- m_restart_interval = get_bits(16);
-}
+ if (c == M_EOI)
+ return JPGD_FALSE;
+ else if (c != M_SOS)
+ stop_decoding(JPGD_UNEXPECTED_MARKER);
-// Read a start of scan (SOS) marker.
-void jpeg_decoder::read_sos_marker()
-{
- uint num_left;
- int i, ci, n, c, cc;
+ read_sos_marker();
- num_left = get_bits(16);
+ return JPGD_TRUE;
+ }
- n = get_bits(8);
-
- m_comps_in_scan = n;
-
- num_left -= 3;
-
- if ( (num_left != (uint)(n * 2 + 3)) || (n < 1) || (n > JPGD_MAX_COMPS_IN_SCAN) )
- stop_decoding(JPGD_BAD_SOS_LENGTH);
-
- for (i = 0; i < n; i++)
- {
- cc = get_bits(8);
- c = get_bits(8);
- num_left -= 2;
-
- for (ci = 0; ci < m_comps_in_frame; ci++)
- if (cc == m_comp_ident[ci])
- break;
-
- if (ci >= m_comps_in_frame)
- stop_decoding(JPGD_BAD_SOS_COMP_ID);
-
- m_comp_list[i] = ci;
- m_comp_dc_tab[ci] = (c >> 4) & 15;
- m_comp_ac_tab[ci] = (c & 15) + (JPGD_MAX_HUFF_TABLES >> 1);
- }
-
- m_spectral_start = get_bits(8);
- m_spectral_end = get_bits(8);
- m_successive_high = get_bits(4);
- m_successive_low = get_bits(4);
-
- if (!m_progressive_flag)
- {
- m_spectral_start = 0;
- m_spectral_end = 63;
- }
-
- num_left -= 3;
-
- while (num_left) /* read past whatever is num_left */
- {
- get_bits(8);
- num_left--;
- }
-}
-
-// Finds the next marker.
-int jpeg_decoder::next_marker()
-{
- uint c, bytes;
-
- bytes = 0;
-
- do
- {
- do
- {
- bytes++;
- c = get_bits(8);
- } while (c != 0xFF);
-
- do
- {
- c = get_bits(8);
- } while (c == 0xFF);
-
- } while (c == 0);
-
- // If bytes > 0 here, there where extra bytes before the marker (not good).
-
- return c;
-}
-
-// Process markers. Returns when an SOFx, SOI, EOI, or SOS marker is
-// encountered.
-int jpeg_decoder::process_markers()
-{
- int c;
-
- for ( ; ; )
- {
- c = next_marker();
-
- switch (c)
- {
- case M_SOF0:
- case M_SOF1:
- case M_SOF2:
- case M_SOF3:
- case M_SOF5:
- case M_SOF6:
- case M_SOF7:
-// case M_JPG:
- case M_SOF9:
- case M_SOF10:
- case M_SOF11:
- case M_SOF13:
- case M_SOF14:
- case M_SOF15:
- case M_SOI:
- case M_EOI:
- case M_SOS:
- {
- return c;
- }
- case M_DHT:
- {
- read_dht_marker();
- break;
- }
- // No arithmitic support - dumb patents!
- case M_DAC:
- {
- stop_decoding(JPGD_NO_ARITHMITIC_SUPPORT);
- break;
- }
- case M_DQT:
- {
- read_dqt_marker();
- break;
- }
- case M_DRI:
- {
- read_dri_marker();
- break;
- }
- //case M_APP0: /* no need to read the JFIF marker */
-
- case M_JPG:
- case M_RST0: /* no parameters */
- case M_RST1:
- case M_RST2:
- case M_RST3:
- case M_RST4:
- case M_RST5:
- case M_RST6:
- case M_RST7:
- case M_TEM:
- {
- stop_decoding(JPGD_UNEXPECTED_MARKER);
- break;
- }
- default: /* must be DNL, DHP, EXP, APPn, JPGn, COM, or RESn or APP0 */
- {
- skip_variable_marker();
- break;
- }
- }
- }
-}
-
-// Finds the start of image (SOI) marker.
-// This code is rather defensive: it only checks the first 512 bytes to avoid
-// false positives.
-void jpeg_decoder::locate_soi_marker()
-{
- uint lastchar, thischar;
- uint bytesleft;
-
- lastchar = get_bits(8);
-
- thischar = get_bits(8);
-
- /* ok if it's a normal JPEG file without a special header */
-
- if ((lastchar == 0xFF) && (thischar == M_SOI))
- return;
-
- bytesleft = 4096; //512;
-
- for ( ; ; )
- {
- if (--bytesleft == 0)
- stop_decoding(JPGD_NOT_JPEG);
-
- lastchar = thischar;
-
- thischar = get_bits(8);
-
- if (lastchar == 0xFF)
- {
- if (thischar == M_SOI)
- break;
- else if (thischar == M_EOI) // get_bits will keep returning M_EOI if we read past the end
- stop_decoding(JPGD_NOT_JPEG);
- }
- }
-
- // Check the next character after marker: if it's not 0xFF, it can't be the start of the next marker, so the file is bad.
- thischar = (m_bit_buf >> 24) & 0xFF;
-
- if (thischar != 0xFF)
- stop_decoding(JPGD_NOT_JPEG);
-}
-
-// Find a start of frame (SOF) marker.
-void jpeg_decoder::locate_sof_marker()
-{
- locate_soi_marker();
-
- int c = process_markers();
-
- switch (c)
- {
- case M_SOF2:
- m_progressive_flag = JPGD_TRUE;
- case M_SOF0: /* baseline DCT */
- case M_SOF1: /* extended sequential DCT */
- {
- read_sof_marker();
- break;
- }
- case M_SOF9: /* Arithmitic coding */
- {
- stop_decoding(JPGD_NO_ARITHMITIC_SUPPORT);
- break;
- }
- default:
- {
- stop_decoding(JPGD_UNSUPPORTED_MARKER);
- break;
- }
- }
-}
-
-// Find a start of scan (SOS) marker.
-int jpeg_decoder::locate_sos_marker()
-{
- int c;
-
- c = process_markers();
-
- if (c == M_EOI)
- return JPGD_FALSE;
- else if (c != M_SOS)
- stop_decoding(JPGD_UNEXPECTED_MARKER);
-
- read_sos_marker();
-
- return JPGD_TRUE;
-}
-
-// Reset everything to default/uninitialized state.
-void jpeg_decoder::init(jpeg_decoder_stream *pStream)
-{
- m_pMem_blocks = NULL;
- m_error_code = JPGD_SUCCESS;
- m_ready_flag = false;
- m_image_x_size = m_image_y_size = 0;
- m_pStream = pStream;
- m_progressive_flag = JPGD_FALSE;
-
- memset(m_huff_ac, 0, sizeof(m_huff_ac));
- memset(m_huff_num, 0, sizeof(m_huff_num));
- memset(m_huff_val, 0, sizeof(m_huff_val));
- memset(m_quant, 0, sizeof(m_quant));
-
- m_scan_type = 0;
- m_comps_in_frame = 0;
-
- memset(m_comp_h_samp, 0, sizeof(m_comp_h_samp));
- memset(m_comp_v_samp, 0, sizeof(m_comp_v_samp));
- memset(m_comp_quant, 0, sizeof(m_comp_quant));
- memset(m_comp_ident, 0, sizeof(m_comp_ident));
- memset(m_comp_h_blocks, 0, sizeof(m_comp_h_blocks));
- memset(m_comp_v_blocks, 0, sizeof(m_comp_v_blocks));
-
- m_comps_in_scan = 0;
- memset(m_comp_list, 0, sizeof(m_comp_list));
- memset(m_comp_dc_tab, 0, sizeof(m_comp_dc_tab));
- memset(m_comp_ac_tab, 0, sizeof(m_comp_ac_tab));
-
- m_spectral_start = 0;
- m_spectral_end = 0;
- m_successive_low = 0;
- m_successive_high = 0;
- m_max_mcu_x_size = 0;
- m_max_mcu_y_size = 0;
- m_blocks_per_mcu = 0;
- m_max_blocks_per_row = 0;
- m_mcus_per_row = 0;
- m_mcus_per_col = 0;
- m_expanded_blocks_per_component = 0;
- m_expanded_blocks_per_mcu = 0;
- m_expanded_blocks_per_row = 0;
- m_freq_domain_chroma_upsample = false;
-
- memset(m_mcu_org, 0, sizeof(m_mcu_org));
-
- m_total_lines_left = 0;
- m_mcu_lines_left = 0;
- m_real_dest_bytes_per_scan_line = 0;
- m_dest_bytes_per_scan_line = 0;
- m_dest_bytes_per_pixel = 0;
-
- memset(m_pHuff_tabs, 0, sizeof(m_pHuff_tabs));
-
- memset(m_dc_coeffs, 0, sizeof(m_dc_coeffs));
- memset(m_ac_coeffs, 0, sizeof(m_ac_coeffs));
- memset(m_block_y_mcu, 0, sizeof(m_block_y_mcu));
-
- m_eob_run = 0;
-
- memset(m_block_y_mcu, 0, sizeof(m_block_y_mcu));
-
- m_pIn_buf_ofs = m_in_buf;
- m_in_buf_left = 0;
- m_eof_flag = false;
- m_tem_flag = 0;
-
- memset(m_in_buf_pad_start, 0, sizeof(m_in_buf_pad_start));
- memset(m_in_buf, 0, sizeof(m_in_buf));
- memset(m_in_buf_pad_end, 0, sizeof(m_in_buf_pad_end));
-
- m_restart_interval = 0;
- m_restarts_left = 0;
- m_next_restart_num = 0;
-
- m_max_mcus_per_row = 0;
- m_max_blocks_per_mcu = 0;
- m_max_mcus_per_col = 0;
-
- memset(m_last_dc_val, 0, sizeof(m_last_dc_val));
- m_pMCU_coefficients = NULL;
- m_pSample_buf = NULL;
-
- m_total_bytes_read = 0;
-
- m_pScan_line_0 = NULL;
- m_pScan_line_1 = NULL;
-
- // Ready the input buffer.
- prep_in_buffer();
-
- // Prime the bit buffer.
- m_bits_left = 16;
- m_bit_buf = 0;
-
- get_bits(16);
- get_bits(16);
-
- for (int i = 0; i < JPGD_MAX_BLOCKS_PER_MCU; i++)
- m_mcu_block_max_zag[i] = 64;
-}
+ // Reset everything to default/uninitialized state.
+ void jpeg_decoder::init(jpeg_decoder_stream* pStream, uint32_t flags)
+ {
+ m_flags = flags;
+ m_pMem_blocks = nullptr;
+ m_error_code = JPGD_SUCCESS;
+ m_ready_flag = false;
+ m_image_x_size = m_image_y_size = 0;
+ m_pStream = pStream;
+ m_progressive_flag = JPGD_FALSE;
+
+ memset(m_huff_ac, 0, sizeof(m_huff_ac));
+ memset(m_huff_num, 0, sizeof(m_huff_num));
+ memset(m_huff_val, 0, sizeof(m_huff_val));
+ memset(m_quant, 0, sizeof(m_quant));
+
+ m_scan_type = 0;
+ m_comps_in_frame = 0;
+
+ memset(m_comp_h_samp, 0, sizeof(m_comp_h_samp));
+ memset(m_comp_v_samp, 0, sizeof(m_comp_v_samp));
+ memset(m_comp_quant, 0, sizeof(m_comp_quant));
+ memset(m_comp_ident, 0, sizeof(m_comp_ident));
+ memset(m_comp_h_blocks, 0, sizeof(m_comp_h_blocks));
+ memset(m_comp_v_blocks, 0, sizeof(m_comp_v_blocks));
+
+ m_comps_in_scan = 0;
+ memset(m_comp_list, 0, sizeof(m_comp_list));
+ memset(m_comp_dc_tab, 0, sizeof(m_comp_dc_tab));
+ memset(m_comp_ac_tab, 0, sizeof(m_comp_ac_tab));
+
+ m_spectral_start = 0;
+ m_spectral_end = 0;
+ m_successive_low = 0;
+ m_successive_high = 0;
+ m_max_mcu_x_size = 0;
+ m_max_mcu_y_size = 0;
+ m_blocks_per_mcu = 0;
+ m_max_blocks_per_row = 0;
+ m_mcus_per_row = 0;
+ m_mcus_per_col = 0;
+
+ memset(m_mcu_org, 0, sizeof(m_mcu_org));
+
+ m_total_lines_left = 0;
+ m_mcu_lines_left = 0;
+ m_num_buffered_scanlines = 0;
+ m_real_dest_bytes_per_scan_line = 0;
+ m_dest_bytes_per_scan_line = 0;
+ m_dest_bytes_per_pixel = 0;
+
+ memset(m_pHuff_tabs, 0, sizeof(m_pHuff_tabs));
+
+ memset(m_dc_coeffs, 0, sizeof(m_dc_coeffs));
+ memset(m_ac_coeffs, 0, sizeof(m_ac_coeffs));
+ memset(m_block_y_mcu, 0, sizeof(m_block_y_mcu));
+
+ m_eob_run = 0;
+
+ m_pIn_buf_ofs = m_in_buf;
+ m_in_buf_left = 0;
+ m_eof_flag = false;
+ m_tem_flag = 0;
+
+ memset(m_in_buf_pad_start, 0, sizeof(m_in_buf_pad_start));
+ memset(m_in_buf, 0, sizeof(m_in_buf));
+ memset(m_in_buf_pad_end, 0, sizeof(m_in_buf_pad_end));
+
+ m_restart_interval = 0;
+ m_restarts_left = 0;
+ m_next_restart_num = 0;
+
+ m_max_mcus_per_row = 0;
+ m_max_blocks_per_mcu = 0;
+ m_max_mcus_per_col = 0;
+
+ memset(m_last_dc_val, 0, sizeof(m_last_dc_val));
+ m_pMCU_coefficients = nullptr;
+ m_pSample_buf = nullptr;
+ m_pSample_buf_prev = nullptr;
+ m_sample_buf_prev_valid = false;
+
+ m_total_bytes_read = 0;
+
+ m_pScan_line_0 = nullptr;
+ m_pScan_line_1 = nullptr;
+
+ // Ready the input buffer.
+ prep_in_buffer();
+
+ // Prime the bit buffer.
+ m_bits_left = 16;
+ m_bit_buf = 0;
+
+ get_bits(16);
+ get_bits(16);
+
+ for (int i = 0; i < JPGD_MAX_BLOCKS_PER_MCU; i++)
+ m_mcu_block_max_zag[i] = 64;
+
+ m_has_sse2 = false;
+
+#if JPGD_USE_SSE2
+#ifdef _MSC_VER
+ int cpu_info[4];
+ __cpuid(cpu_info, 1);
+ const int cpu_info3 = cpu_info[3];
+ m_has_sse2 = ((cpu_info3 >> 26U) & 1U) != 0U;
+#else
+ m_has_sse2 = true;
+#endif
+#endif
+ }
#define SCALEBITS 16
#define ONE_HALF ((int) 1 << (SCALEBITS-1))
#define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5f))
-// Create a few tables that allow us to quickly convert YCbCr to RGB.
-void jpeg_decoder::create_look_ups()
-{
- for (int i = 0; i <= 255; i++)
- {
- int k = i - 128;
- m_crr[i] = ( FIX(1.40200f) * k + ONE_HALF) >> SCALEBITS;
- m_cbb[i] = ( FIX(1.77200f) * k + ONE_HALF) >> SCALEBITS;
- m_crg[i] = (-FIX(0.71414f)) * k;
- m_cbg[i] = (-FIX(0.34414f)) * k + ONE_HALF;
- }
-}
-
-// This method throws back into the stream any bytes that where read
-// into the bit buffer during initial marker scanning.
-void jpeg_decoder::fix_in_buffer()
-{
- // In case any 0xFF's where pulled into the buffer during marker scanning.
- JPGD_ASSERT((m_bits_left & 7) == 0);
-
- if (m_bits_left == 16)
- stuff_char( (uint8)(m_bit_buf & 0xFF));
-
- if (m_bits_left >= 8)
- stuff_char( (uint8)((m_bit_buf >> 8) & 0xFF));
-
- stuff_char((uint8)((m_bit_buf >> 16) & 0xFF));
- stuff_char((uint8)((m_bit_buf >> 24) & 0xFF));
-
- m_bits_left = 16;
- get_bits_no_markers(16);
- get_bits_no_markers(16);
-}
-
-void jpeg_decoder::transform_mcu(int mcu_row)
-{
- jpgd_block_t* pSrc_ptr = m_pMCU_coefficients;
- if (m_freq_domain_chroma_upsample) {
- JPGD_ASSERT(mcu_row * m_blocks_per_mcu < m_expanded_blocks_per_row);
- }
- else {
- JPGD_ASSERT(mcu_row * m_blocks_per_mcu < m_max_blocks_per_row);
- }
- uint8* pDst_ptr = m_pSample_buf + mcu_row * m_blocks_per_mcu * 64;
-
- for (int mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
- {
- idct(pSrc_ptr, pDst_ptr, m_mcu_block_max_zag[mcu_block]);
- pSrc_ptr += 64;
- pDst_ptr += 64;
- }
-}
-
-static const uint8 s_max_rc[64] =
-{
- 17, 18, 34, 50, 50, 51, 52, 52, 52, 68, 84, 84, 84, 84, 85, 86, 86, 86, 86, 86,
- 102, 118, 118, 118, 118, 118, 118, 119, 120, 120, 120, 120, 120, 120, 120, 136,
- 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136,
- 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136
-};
-
-void jpeg_decoder::transform_mcu_expand(int mcu_row)
-{
- jpgd_block_t* pSrc_ptr = m_pMCU_coefficients;
- uint8* pDst_ptr = m_pSample_buf + mcu_row * m_expanded_blocks_per_mcu * 64;
-
- // Y IDCT
- int mcu_block;
- for (mcu_block = 0; mcu_block < m_expanded_blocks_per_component; mcu_block++)
- {
- idct(pSrc_ptr, pDst_ptr, m_mcu_block_max_zag[mcu_block]);
- pSrc_ptr += 64;
- pDst_ptr += 64;
- }
-
- // Chroma IDCT, with upsampling
- jpgd_block_t temp_block[64];
-
- for (int i = 0; i < 2; i++)
- {
- DCT_Upsample::Matrix44 P, Q, R, S;
-
- JPGD_ASSERT(m_mcu_block_max_zag[mcu_block] >= 1);
- JPGD_ASSERT(m_mcu_block_max_zag[mcu_block] <= 64);
-
- int max_zag = m_mcu_block_max_zag[mcu_block++] - 1;
- if (max_zag <= 0) max_zag = 0; // should never happen, only here to shut up static analysis
- switch (s_max_rc[max_zag])
- {
- case 1*16+1:
- DCT_Upsample::P_Q<1, 1>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<1, 1>::calc(R, S, pSrc_ptr);
- break;
- case 1*16+2:
- DCT_Upsample::P_Q<1, 2>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<1, 2>::calc(R, S, pSrc_ptr);
- break;
- case 2*16+2:
- DCT_Upsample::P_Q<2, 2>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<2, 2>::calc(R, S, pSrc_ptr);
- break;
- case 3*16+2:
- DCT_Upsample::P_Q<3, 2>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<3, 2>::calc(R, S, pSrc_ptr);
- break;
- case 3*16+3:
- DCT_Upsample::P_Q<3, 3>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<3, 3>::calc(R, S, pSrc_ptr);
- break;
- case 3*16+4:
- DCT_Upsample::P_Q<3, 4>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<3, 4>::calc(R, S, pSrc_ptr);
- break;
- case 4*16+4:
- DCT_Upsample::P_Q<4, 4>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<4, 4>::calc(R, S, pSrc_ptr);
- break;
- case 5*16+4:
- DCT_Upsample::P_Q<5, 4>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<5, 4>::calc(R, S, pSrc_ptr);
- break;
- case 5*16+5:
- DCT_Upsample::P_Q<5, 5>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<5, 5>::calc(R, S, pSrc_ptr);
- break;
- case 5*16+6:
- DCT_Upsample::P_Q<5, 6>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<5, 6>::calc(R, S, pSrc_ptr);
- break;
- case 6*16+6:
- DCT_Upsample::P_Q<6, 6>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<6, 6>::calc(R, S, pSrc_ptr);
- break;
- case 7*16+6:
- DCT_Upsample::P_Q<7, 6>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<7, 6>::calc(R, S, pSrc_ptr);
- break;
- case 7*16+7:
- DCT_Upsample::P_Q<7, 7>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<7, 7>::calc(R, S, pSrc_ptr);
- break;
- case 7*16+8:
- DCT_Upsample::P_Q<7, 8>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<7, 8>::calc(R, S, pSrc_ptr);
- break;
- case 8*16+8:
- DCT_Upsample::P_Q<8, 8>::calc(P, Q, pSrc_ptr);
- DCT_Upsample::R_S<8, 8>::calc(R, S, pSrc_ptr);
- break;
- default:
- JPGD_ASSERT(false);
- }
-
- DCT_Upsample::Matrix44 a(P + Q); P -= Q;
- DCT_Upsample::Matrix44& b = P;
- DCT_Upsample::Matrix44 c(R + S); R -= S;
- DCT_Upsample::Matrix44& d = R;
-
- DCT_Upsample::Matrix44::add_and_store(temp_block, a, c);
- idct_4x4(temp_block, pDst_ptr);
- pDst_ptr += 64;
-
- DCT_Upsample::Matrix44::sub_and_store(temp_block, a, c);
- idct_4x4(temp_block, pDst_ptr);
- pDst_ptr += 64;
-
- DCT_Upsample::Matrix44::add_and_store(temp_block, b, d);
- idct_4x4(temp_block, pDst_ptr);
- pDst_ptr += 64;
-
- DCT_Upsample::Matrix44::sub_and_store(temp_block, b, d);
- idct_4x4(temp_block, pDst_ptr);
- pDst_ptr += 64;
-
- pSrc_ptr += 64;
- }
-}
-
-// Loads and dequantizes the next row of (already decoded) coefficients.
-// Progressive images only.
-void jpeg_decoder::load_next_row()
-{
- int i;
- jpgd_block_t *p;
- jpgd_quant_t *q;
- int mcu_row, mcu_block, row_block = 0;
- int component_num, component_id;
- int block_x_mcu[JPGD_MAX_COMPONENTS];
-
- memset(block_x_mcu, 0, JPGD_MAX_COMPONENTS * sizeof(int));
-
- for (mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
- {
- int block_x_mcu_ofs = 0, block_y_mcu_ofs = 0;
-
- for (mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
- {
- component_id = m_mcu_org[mcu_block];
- JPGD_ASSERT(m_comp_quant[component_id] < JPGD_MAX_QUANT_TABLES);
- q = m_quant[m_comp_quant[component_id]];
-
- p = m_pMCU_coefficients + 64 * mcu_block;
-
- jpgd_block_t* pAC = coeff_buf_getp(m_ac_coeffs[component_id], block_x_mcu[component_id] + block_x_mcu_ofs, m_block_y_mcu[component_id] + block_y_mcu_ofs);
- jpgd_block_t* pDC = coeff_buf_getp(m_dc_coeffs[component_id], block_x_mcu[component_id] + block_x_mcu_ofs, m_block_y_mcu[component_id] + block_y_mcu_ofs);
- p[0] = pDC[0];
- memcpy(&p[1], &pAC[1], 63 * sizeof(jpgd_block_t));
-
- for (i = 63; i > 0; i--)
- if (p[g_ZAG[i]])
- break;
-
- m_mcu_block_max_zag[mcu_block] = i + 1;
-
- for ( ; i >= 0; i--)
- if (p[g_ZAG[i]])
- p[g_ZAG[i]] = static_cast<jpgd_block_t>(p[g_ZAG[i]] * q[i]);
-
- row_block++;
-
- if (m_comps_in_scan == 1)
- block_x_mcu[component_id]++;
- else
- {
- if (++block_x_mcu_ofs == m_comp_h_samp[component_id])
- {
- block_x_mcu_ofs = 0;
-
- if (++block_y_mcu_ofs == m_comp_v_samp[component_id])
- {
- block_y_mcu_ofs = 0;
-
- block_x_mcu[component_id] += m_comp_h_samp[component_id];
- }
- }
- }
- }
-
- if (m_freq_domain_chroma_upsample)
- transform_mcu_expand(mcu_row);
- else
- transform_mcu(mcu_row);
- }
-
- if (m_comps_in_scan == 1)
- m_block_y_mcu[m_comp_list[0]]++;
- else
- {
- for (component_num = 0; component_num < m_comps_in_scan; component_num++)
- {
- component_id = m_comp_list[component_num];
-
- m_block_y_mcu[component_id] += m_comp_v_samp[component_id];
- }
- }
-}
-
-// Restart interval processing.
-void jpeg_decoder::process_restart()
-{
- int i;
- int c = 0;
-
- // Align to a byte boundry
- // FIXME: Is this really necessary? get_bits_no_markers() never reads in markers!
- //get_bits_no_markers(m_bits_left & 7);
-
- // Let's scan a little bit to find the marker, but not _too_ far.
- // 1536 is a "fudge factor" that determines how much to scan.
- for (i = 1536; i > 0; i--)
- if (get_char() == 0xFF)
- break;
-
- if (i == 0)
- stop_decoding(JPGD_BAD_RESTART_MARKER);
-
- for ( ; i > 0; i--)
- if ((c = get_char()) != 0xFF)
- break;
-
- if (i == 0)
- stop_decoding(JPGD_BAD_RESTART_MARKER);
-
- // Is it the expected marker? If not, something bad happened.
- if (c != (m_next_restart_num + M_RST0))
- stop_decoding(JPGD_BAD_RESTART_MARKER);
-
- // Reset each component's DC prediction values.
- memset(&m_last_dc_val, 0, m_comps_in_frame * sizeof(uint));
-
- m_eob_run = 0;
-
- m_restarts_left = m_restart_interval;
-
- m_next_restart_num = (m_next_restart_num + 1) & 7;
-
- // Get the bit buffer going again...
-
- m_bits_left = 16;
- get_bits_no_markers(16);
- get_bits_no_markers(16);
-}
-
-static inline int dequantize_ac(int c, int q) { c *= q; return c; }
-
-// Decodes and dequantizes the next row of coefficients.
-void jpeg_decoder::decode_next_row()
-{
- int row_block = 0;
-
- for (int mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
- {
- if ((m_restart_interval) && (m_restarts_left == 0))
- process_restart();
-
- jpgd_block_t* p = m_pMCU_coefficients;
- for (int mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++, p += 64)
- {
- int component_id = m_mcu_org[mcu_block];
- JPGD_ASSERT(m_comp_quant[component_id] < JPGD_MAX_QUANT_TABLES);
- jpgd_quant_t* q = m_quant[m_comp_quant[component_id]];
-
- int r, s;
- s = huff_decode(m_pHuff_tabs[m_comp_dc_tab[component_id]], r);
- s = JPGD_HUFF_EXTEND(r, s);
-
- m_last_dc_val[component_id] = (s += m_last_dc_val[component_id]);
-
- p[0] = static_cast<jpgd_block_t>(s * q[0]);
-
- int prev_num_set = m_mcu_block_max_zag[mcu_block];
-
- huff_tables *pH = m_pHuff_tabs[m_comp_ac_tab[component_id]];
-
- int k;
- for (k = 1; k < 64; k++)
- {
- int extra_bits;
- s = huff_decode(pH, extra_bits);
-
- r = s >> 4;
- s &= 15;
-
- if (s)
- {
- if (r)
- {
- if ((k + r) > 63)
- stop_decoding(JPGD_DECODE_ERROR);
-
- if (k < prev_num_set)
- {
- int n = JPGD_MIN(r, prev_num_set - k);
- int kt = k;
- while (n--)
- p[g_ZAG[kt++]] = 0;
- }
-
- k += r;
- }
-
- s = JPGD_HUFF_EXTEND(extra_bits, s);
-
- JPGD_ASSERT(k < 64);
-
- p[g_ZAG[k]] = static_cast<jpgd_block_t>(dequantize_ac(s, q[k])); //s * q[k];
- }
- else
- {
- if (r == 15)
- {
- if ((k + 16) > 64)
- stop_decoding(JPGD_DECODE_ERROR);
-
- if (k < prev_num_set)
- {
- int n = JPGD_MIN(16, prev_num_set - k);
- int kt = k;
- while (n--)
- {
- JPGD_ASSERT(kt <= 63);
- p[g_ZAG[kt++]] = 0;
- }
- }
-
- k += 16 - 1; // - 1 because the loop counter is k
- JPGD_ASSERT(p[g_ZAG[k]] == 0);
- }
- else
- break;
- }
- }
-
- if (k < prev_num_set)
- {
- int kt = k;
- while (kt < prev_num_set)
- p[g_ZAG[kt++]] = 0;
- }
-
- m_mcu_block_max_zag[mcu_block] = k;
-
- row_block++;
- }
-
- if (m_freq_domain_chroma_upsample)
- transform_mcu_expand(mcu_row);
- else
- transform_mcu(mcu_row);
-
- m_restarts_left--;
- }
-}
-
-// YCbCr H1V1 (1x1:1:1, 3 m_blocks per MCU) to RGB
-void jpeg_decoder::H1V1Convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
- uint8 *d = m_pScan_line_0;
- uint8 *s = m_pSample_buf + row * 8;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- for (int j = 0; j < 8; j++)
- {
- int y = s[j];
- int cb = s[64+j];
- int cr = s[128+j];
-
- d[0] = clamp(y + m_crr[cr]);
- d[1] = clamp(y + ((m_crg[cr] + m_cbg[cb]) >> 16));
- d[2] = clamp(y + m_cbb[cb]);
- d[3] = 255;
-
- d += 4;
- }
-
- s += 64*3;
- }
-}
-
-// YCbCr H2V1 (2x1:1:1, 4 m_blocks per MCU) to RGB
-void jpeg_decoder::H2V1Convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
- uint8 *d0 = m_pScan_line_0;
- uint8 *y = m_pSample_buf + row * 8;
- uint8 *c = m_pSample_buf + 2*64 + row * 8;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- for (int l = 0; l < 2; l++)
- {
- for (int j = 0; j < 4; j++)
- {
- int cb = c[0];
- int cr = c[64];
-
- int rc = m_crr[cr];
- int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
- int bc = m_cbb[cb];
-
- int yy = y[j<<1];
- d0[0] = clamp(yy+rc);
- d0[1] = clamp(yy+gc);
- d0[2] = clamp(yy+bc);
- d0[3] = 255;
-
- yy = y[(j<<1)+1];
- d0[4] = clamp(yy+rc);
- d0[5] = clamp(yy+gc);
- d0[6] = clamp(yy+bc);
- d0[7] = 255;
-
- d0 += 8;
-
- c++;
- }
- y += 64;
- }
-
- y += 64*4 - 64*2;
- c += 64*4 - 8;
- }
-}
-
-// YCbCr H2V1 (1x2:1:1, 4 m_blocks per MCU) to RGB
-void jpeg_decoder::H1V2Convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
- uint8 *d0 = m_pScan_line_0;
- uint8 *d1 = m_pScan_line_1;
- uint8 *y;
- uint8 *c;
-
- if (row < 8)
- y = m_pSample_buf + row * 8;
- else
- y = m_pSample_buf + 64*1 + (row & 7) * 8;
-
- c = m_pSample_buf + 64*2 + (row >> 1) * 8;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- for (int j = 0; j < 8; j++)
- {
- int cb = c[0+j];
- int cr = c[64+j];
-
- int rc = m_crr[cr];
- int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
- int bc = m_cbb[cb];
-
- int yy = y[j];
- d0[0] = clamp(yy+rc);
- d0[1] = clamp(yy+gc);
- d0[2] = clamp(yy+bc);
- d0[3] = 255;
-
- yy = y[8+j];
- d1[0] = clamp(yy+rc);
- d1[1] = clamp(yy+gc);
- d1[2] = clamp(yy+bc);
- d1[3] = 255;
-
- d0 += 4;
- d1 += 4;
- }
-
- y += 64*4;
- c += 64*4;
- }
-}
-
-// YCbCr H2V2 (2x2:1:1, 6 m_blocks per MCU) to RGB
-void jpeg_decoder::H2V2Convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
- uint8 *d0 = m_pScan_line_0;
- uint8 *d1 = m_pScan_line_1;
- uint8 *y;
- uint8 *c;
-
- if (row < 8)
- y = m_pSample_buf + row * 8;
- else
- y = m_pSample_buf + 64*2 + (row & 7) * 8;
-
- c = m_pSample_buf + 64*4 + (row >> 1) * 8;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- for (int l = 0; l < 2; l++)
- {
- for (int j = 0; j < 8; j += 2)
- {
- int cb = c[0];
- int cr = c[64];
+ // Create a few tables that allow us to quickly convert YCbCr to RGB.
+ void jpeg_decoder::create_look_ups()
+ {
+ for (int i = 0; i <= 255; i++)
+ {
+ int k = i - 128;
+ m_crr[i] = (FIX(1.40200f) * k + ONE_HALF) >> SCALEBITS;
+ m_cbb[i] = (FIX(1.77200f) * k + ONE_HALF) >> SCALEBITS;
+ m_crg[i] = (-FIX(0.71414f)) * k;
+ m_cbg[i] = (-FIX(0.34414f)) * k + ONE_HALF;
+ }
+ }
+
+ // This method throws back into the stream any bytes that where read
+ // into the bit buffer during initial marker scanning.
+ void jpeg_decoder::fix_in_buffer()
+ {
+ // In case any 0xFF's where pulled into the buffer during marker scanning.
+ assert((m_bits_left & 7) == 0);
+
+ if (m_bits_left == 16)
+ stuff_char((uint8)(m_bit_buf & 0xFF));
+
+ if (m_bits_left >= 8)
+ stuff_char((uint8)((m_bit_buf >> 8) & 0xFF));
+
+ stuff_char((uint8)((m_bit_buf >> 16) & 0xFF));
+ stuff_char((uint8)((m_bit_buf >> 24) & 0xFF));
+
+ m_bits_left = 16;
+ get_bits_no_markers(16);
+ get_bits_no_markers(16);
+ }
+
+ void jpeg_decoder::transform_mcu(int mcu_row)
+ {
+ jpgd_block_coeff_t* pSrc_ptr = m_pMCU_coefficients;
+ if (mcu_row * m_blocks_per_mcu >= m_max_blocks_per_row)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ uint8* pDst_ptr = m_pSample_buf + mcu_row * m_blocks_per_mcu * 64;
+
+ for (int mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
+ {
+ idct(pSrc_ptr, pDst_ptr, m_mcu_block_max_zag[mcu_block], ((m_flags & cFlagDisableSIMD) == 0) && m_has_sse2);
+ pSrc_ptr += 64;
+ pDst_ptr += 64;
+ }
+ }
+
+ // Loads and dequantizes the next row of (already decoded) coefficients.
+ // Progressive images only.
+ void jpeg_decoder::load_next_row()
+ {
+ int i;
+ jpgd_block_coeff_t* p;
+ jpgd_quant_t* q;
+ int mcu_row, mcu_block, row_block = 0;
+ int component_num, component_id;
+ int block_x_mcu[JPGD_MAX_COMPONENTS];
+
+ memset(block_x_mcu, 0, JPGD_MAX_COMPONENTS * sizeof(int));
+
+ for (mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
+ {
+ int block_x_mcu_ofs = 0, block_y_mcu_ofs = 0;
+
+ for (mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
+ {
+ component_id = m_mcu_org[mcu_block];
+ if (m_comp_quant[component_id] >= JPGD_MAX_QUANT_TABLES)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ q = m_quant[m_comp_quant[component_id]];
+
+ p = m_pMCU_coefficients + 64 * mcu_block;
+
+ jpgd_block_coeff_t* pAC = coeff_buf_getp(m_ac_coeffs[component_id], block_x_mcu[component_id] + block_x_mcu_ofs, m_block_y_mcu[component_id] + block_y_mcu_ofs);
+ jpgd_block_coeff_t* pDC = coeff_buf_getp(m_dc_coeffs[component_id], block_x_mcu[component_id] + block_x_mcu_ofs, m_block_y_mcu[component_id] + block_y_mcu_ofs);
+ p[0] = pDC[0];
+ memcpy(&p[1], &pAC[1], 63 * sizeof(jpgd_block_coeff_t));
+
+ for (i = 63; i > 0; i--)
+ if (p[g_ZAG[i]])
+ break;
+
+ m_mcu_block_max_zag[mcu_block] = i + 1;
+
+ for (; i >= 0; i--)
+ if (p[g_ZAG[i]])
+ p[g_ZAG[i]] = static_cast<jpgd_block_coeff_t>(p[g_ZAG[i]] * q[i]);
+
+ row_block++;
+
+ if (m_comps_in_scan == 1)
+ block_x_mcu[component_id]++;
+ else
+ {
+ if (++block_x_mcu_ofs == m_comp_h_samp[component_id])
+ {
+ block_x_mcu_ofs = 0;
+
+ if (++block_y_mcu_ofs == m_comp_v_samp[component_id])
+ {
+ block_y_mcu_ofs = 0;
+
+ block_x_mcu[component_id] += m_comp_h_samp[component_id];
+ }
+ }
+ }
+ }
+
+ transform_mcu(mcu_row);
+ }
+
+ if (m_comps_in_scan == 1)
+ m_block_y_mcu[m_comp_list[0]]++;
+ else
+ {
+ for (component_num = 0; component_num < m_comps_in_scan; component_num++)
+ {
+ component_id = m_comp_list[component_num];
+
+ m_block_y_mcu[component_id] += m_comp_v_samp[component_id];
+ }
+ }
+ }
+
+ // Restart interval processing.
+ void jpeg_decoder::process_restart()
+ {
+ int i;
+ int c = 0;
+
+ // Align to a byte boundry
+ // FIXME: Is this really necessary? get_bits_no_markers() never reads in markers!
+ //get_bits_no_markers(m_bits_left & 7);
+
+ // Let's scan a little bit to find the marker, but not _too_ far.
+ // 1536 is a "fudge factor" that determines how much to scan.
+ for (i = 1536; i > 0; i--)
+ if (get_char() == 0xFF)
+ break;
+
+ if (i == 0)
+ stop_decoding(JPGD_BAD_RESTART_MARKER);
+
+ for (; i > 0; i--)
+ if ((c = get_char()) != 0xFF)
+ break;
+
+ if (i == 0)
+ stop_decoding(JPGD_BAD_RESTART_MARKER);
+
+ // Is it the expected marker? If not, something bad happened.
+ if (c != (m_next_restart_num + M_RST0))
+ stop_decoding(JPGD_BAD_RESTART_MARKER);
+
+ // Reset each component's DC prediction values.
+ memset(&m_last_dc_val, 0, m_comps_in_frame * sizeof(uint));
+
+ m_eob_run = 0;
+
+ m_restarts_left = m_restart_interval;
+
+ m_next_restart_num = (m_next_restart_num + 1) & 7;
+
+ // Get the bit buffer going again...
+
+ m_bits_left = 16;
+ get_bits_no_markers(16);
+ get_bits_no_markers(16);
+ }
+
+ static inline int dequantize_ac(int c, int q) { c *= q; return c; }
+
+ // Decodes and dequantizes the next row of coefficients.
+ void jpeg_decoder::decode_next_row()
+ {
+ int row_block = 0;
+
+ for (int mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
+ {
+ if ((m_restart_interval) && (m_restarts_left == 0))
+ process_restart();
+
+ jpgd_block_coeff_t* p = m_pMCU_coefficients;
+ for (int mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++, p += 64)
+ {
+ int component_id = m_mcu_org[mcu_block];
+ if (m_comp_quant[component_id] >= JPGD_MAX_QUANT_TABLES)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ jpgd_quant_t* q = m_quant[m_comp_quant[component_id]];
+
+ int r, s;
+ s = huff_decode(m_pHuff_tabs[m_comp_dc_tab[component_id]], r);
+ if (s >= 16)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ s = JPGD_HUFF_EXTEND(r, s);
+
+ m_last_dc_val[component_id] = (s += m_last_dc_val[component_id]);
+
+ p[0] = static_cast<jpgd_block_coeff_t>(s * q[0]);
+
+ int prev_num_set = m_mcu_block_max_zag[mcu_block];
+
+ huff_tables* pH = m_pHuff_tabs[m_comp_ac_tab[component_id]];
+
+ int k;
+ for (k = 1; k < 64; k++)
+ {
+ int extra_bits;
+ s = huff_decode(pH, extra_bits);
+
+ r = s >> 4;
+ s &= 15;
+
+ if (s)
+ {
+ if (r)
+ {
+ if ((k + r) > 63)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ if (k < prev_num_set)
+ {
+ int n = JPGD_MIN(r, prev_num_set - k);
+ int kt = k;
+ while (n--)
+ p[g_ZAG[kt++]] = 0;
+ }
+
+ k += r;
+ }
+
+ s = JPGD_HUFF_EXTEND(extra_bits, s);
+
+ if (k >= 64)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ p[g_ZAG[k]] = static_cast<jpgd_block_coeff_t>(dequantize_ac(s, q[k])); //s * q[k];
+ }
+ else
+ {
+ if (r == 15)
+ {
+ if ((k + 16) > 64)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ if (k < prev_num_set)
+ {
+ int n = JPGD_MIN(16, prev_num_set - k);
+ int kt = k;
+ while (n--)
+ {
+ if (kt > 63)
+ stop_decoding(JPGD_DECODE_ERROR);
+ p[g_ZAG[kt++]] = 0;
+ }
+ }
+
+ k += 16 - 1; // - 1 because the loop counter is k
+
+ if (p[g_ZAG[k & 63]] != 0)
+ stop_decoding(JPGD_DECODE_ERROR);
+ }
+ else
+ break;
+ }
+ }
+
+ if (k < prev_num_set)
+ {
+ int kt = k;
+ while (kt < prev_num_set)
+ p[g_ZAG[kt++]] = 0;
+ }
+
+ m_mcu_block_max_zag[mcu_block] = k;
+
+ row_block++;
+ }
+
+ transform_mcu(mcu_row);
+
+ m_restarts_left--;
+ }
+ }
+
+ // YCbCr H1V1 (1x1:1:1, 3 m_blocks per MCU) to RGB
+ void jpeg_decoder::H1V1Convert()
+ {
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d = m_pScan_line_0;
+ uint8* s = m_pSample_buf + row * 8;
+
+ for (int i = m_max_mcus_per_row; i > 0; i--)
+ {
+ for (int j = 0; j < 8; j++)
+ {
+ int y = s[j];
+ int cb = s[64 + j];
+ int cr = s[128 + j];
+
+ d[0] = clamp(y + m_crr[cr]);
+ d[1] = clamp(y + ((m_crg[cr] + m_cbg[cb]) >> 16));
+ d[2] = clamp(y + m_cbb[cb]);
+ d[3] = 255;
+
+ d += 4;
+ }
+
+ s += 64 * 3;
+ }
+ }
+
+ // YCbCr H2V1 (2x1:1:1, 4 m_blocks per MCU) to RGB
+ void jpeg_decoder::H2V1Convert()
+ {
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d0 = m_pScan_line_0;
+ uint8* y = m_pSample_buf + row * 8;
+ uint8* c = m_pSample_buf + 2 * 64 + row * 8;
+
+ for (int i = m_max_mcus_per_row; i > 0; i--)
+ {
+ for (int l = 0; l < 2; l++)
+ {
+ for (int j = 0; j < 4; j++)
+ {
+ int cb = c[0];
+ int cr = c[64];
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ int yy = y[j << 1];
+ d0[0] = clamp(yy + rc);
+ d0[1] = clamp(yy + gc);
+ d0[2] = clamp(yy + bc);
+ d0[3] = 255;
+
+ yy = y[(j << 1) + 1];
+ d0[4] = clamp(yy + rc);
+ d0[5] = clamp(yy + gc);
+ d0[6] = clamp(yy + bc);
+ d0[7] = 255;
+
+ d0 += 8;
+
+ c++;
+ }
+ y += 64;
+ }
+
+ y += 64 * 4 - 64 * 2;
+ c += 64 * 4 - 8;
+ }
+ }
+
+ // YCbCr H2V1 (2x1:1:1, 4 m_blocks per MCU) to RGB
+ void jpeg_decoder::H2V1ConvertFiltered()
+ {
+ const uint BLOCKS_PER_MCU = 4;
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d0 = m_pScan_line_0;
+
+ const int half_image_x_size = (m_image_x_size >> 1) - 1;
+ const int row_x8 = row * 8;
+
+ for (int x = 0; x < m_image_x_size; x++)
+ {
+ int y = m_pSample_buf[check_sample_buf_ofs((x >> 4) * BLOCKS_PER_MCU * 64 + ((x & 8) ? 64 : 0) + (x & 7) + row_x8)];
+
+ int c_x0 = (x - 1) >> 1;
+ int c_x1 = JPGD_MIN(c_x0 + 1, half_image_x_size);
+ c_x0 = JPGD_MAX(c_x0, 0);
+
+ int a = (c_x0 >> 3) * BLOCKS_PER_MCU * 64 + (c_x0 & 7) + row_x8 + 128;
+ int cb0 = m_pSample_buf[check_sample_buf_ofs(a)];
+ int cr0 = m_pSample_buf[check_sample_buf_ofs(a + 64)];
+
+ int b = (c_x1 >> 3) * BLOCKS_PER_MCU * 64 + (c_x1 & 7) + row_x8 + 128;
+ int cb1 = m_pSample_buf[check_sample_buf_ofs(b)];
+ int cr1 = m_pSample_buf[check_sample_buf_ofs(b + 64)];
+
+ int w0 = (x & 1) ? 3 : 1;
+ int w1 = (x & 1) ? 1 : 3;
+
+ int cb = (cb0 * w0 + cb1 * w1 + 2) >> 2;
+ int cr = (cr0 * w0 + cr1 * w1 + 2) >> 2;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d0[0] = clamp(y + rc);
+ d0[1] = clamp(y + gc);
+ d0[2] = clamp(y + bc);
+ d0[3] = 255;
+
+ d0 += 4;
+ }
+ }
+
+ // YCbCr H2V1 (1x2:1:1, 4 m_blocks per MCU) to RGB
+ void jpeg_decoder::H1V2Convert()
+ {
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d0 = m_pScan_line_0;
+ uint8* d1 = m_pScan_line_1;
+ uint8* y;
+ uint8* c;
+
+ if (row < 8)
+ y = m_pSample_buf + row * 8;
+ else
+ y = m_pSample_buf + 64 * 1 + (row & 7) * 8;
+
+ c = m_pSample_buf + 64 * 2 + (row >> 1) * 8;
+
+ for (int i = m_max_mcus_per_row; i > 0; i--)
+ {
+ for (int j = 0; j < 8; j++)
+ {
+ int cb = c[0 + j];
+ int cr = c[64 + j];
int rc = m_crr[cr];
int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
int bc = m_cbb[cb];
int yy = y[j];
- d0[0] = clamp(yy+rc);
- d0[1] = clamp(yy+gc);
- d0[2] = clamp(yy+bc);
+ d0[0] = clamp(yy + rc);
+ d0[1] = clamp(yy + gc);
+ d0[2] = clamp(yy + bc);
d0[3] = 255;
- yy = y[j+1];
- d0[4] = clamp(yy+rc);
- d0[5] = clamp(yy+gc);
- d0[6] = clamp(yy+bc);
- d0[7] = 255;
-
- yy = y[j+8];
- d1[0] = clamp(yy+rc);
- d1[1] = clamp(yy+gc);
- d1[2] = clamp(yy+bc);
+ yy = y[8 + j];
+ d1[0] = clamp(yy + rc);
+ d1[1] = clamp(yy + gc);
+ d1[2] = clamp(yy + bc);
d1[3] = 255;
- yy = y[j+8+1];
- d1[4] = clamp(yy+rc);
- d1[5] = clamp(yy+gc);
- d1[6] = clamp(yy+bc);
- d1[7] = 255;
+ d0 += 4;
+ d1 += 4;
+ }
+
+ y += 64 * 4;
+ c += 64 * 4;
+ }
+ }
+
+ // YCbCr H2V1 (1x2:1:1, 4 m_blocks per MCU) to RGB
+ void jpeg_decoder::H1V2ConvertFiltered()
+ {
+ const uint BLOCKS_PER_MCU = 4;
+ int y = m_image_y_size - m_total_lines_left;
+ int row = y & 15;
+
+ const int half_image_y_size = (m_image_y_size >> 1) - 1;
+
+ uint8* d0 = m_pScan_line_0;
+
+ const int w0 = (row & 1) ? 3 : 1;
+ const int w1 = (row & 1) ? 1 : 3;
+
+ int c_y0 = (y - 1) >> 1;
+ int c_y1 = JPGD_MIN(c_y0 + 1, half_image_y_size);
+
+ const uint8_t* p_YSamples = m_pSample_buf;
+ const uint8_t* p_C0Samples = m_pSample_buf;
+ if ((c_y0 >= 0) && (((row & 15) == 0) || ((row & 15) == 15)) && (m_total_lines_left > 1))
+ {
+ assert(y > 0);
+ assert(m_sample_buf_prev_valid);
+
+ if ((row & 15) == 15)
+ p_YSamples = m_pSample_buf_prev;
- d0 += 8;
- d1 += 8;
+ p_C0Samples = m_pSample_buf_prev;
+ }
+
+ const int y_sample_base_ofs = ((row & 8) ? 64 : 0) + (row & 7) * 8;
+ const int y0_base = (c_y0 & 7) * 8 + 128;
+ const int y1_base = (c_y1 & 7) * 8 + 128;
+
+ for (int x = 0; x < m_image_x_size; x++)
+ {
+ const int base_ofs = (x >> 3) * BLOCKS_PER_MCU * 64 + (x & 7);
+
+ int y_sample = p_YSamples[check_sample_buf_ofs(base_ofs + y_sample_base_ofs)];
+
+ int a = base_ofs + y0_base;
+ int cb0_sample = p_C0Samples[check_sample_buf_ofs(a)];
+ int cr0_sample = p_C0Samples[check_sample_buf_ofs(a + 64)];
+
+ int b = base_ofs + y1_base;
+ int cb1_sample = m_pSample_buf[check_sample_buf_ofs(b)];
+ int cr1_sample = m_pSample_buf[check_sample_buf_ofs(b + 64)];
+
+ int cb = (cb0_sample * w0 + cb1_sample * w1 + 2) >> 2;
+ int cr = (cr0_sample * w0 + cr1_sample * w1 + 2) >> 2;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d0[0] = clamp(y_sample + rc);
+ d0[1] = clamp(y_sample + gc);
+ d0[2] = clamp(y_sample + bc);
+ d0[3] = 255;
+
+ d0 += 4;
+ }
+ }
+
+ // YCbCr H2V2 (2x2:1:1, 6 m_blocks per MCU) to RGB
+ void jpeg_decoder::H2V2Convert()
+ {
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d0 = m_pScan_line_0;
+ uint8* d1 = m_pScan_line_1;
+ uint8* y;
+ uint8* c;
- c++;
+ if (row < 8)
+ y = m_pSample_buf + row * 8;
+ else
+ y = m_pSample_buf + 64 * 2 + (row & 7) * 8;
+
+ c = m_pSample_buf + 64 * 4 + (row >> 1) * 8;
+
+ for (int i = m_max_mcus_per_row; i > 0; i--)
+ {
+ for (int l = 0; l < 2; l++)
+ {
+ for (int j = 0; j < 8; j += 2)
+ {
+ int cb = c[0];
+ int cr = c[64];
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ int yy = y[j];
+ d0[0] = clamp(yy + rc);
+ d0[1] = clamp(yy + gc);
+ d0[2] = clamp(yy + bc);
+ d0[3] = 255;
+
+ yy = y[j + 1];
+ d0[4] = clamp(yy + rc);
+ d0[5] = clamp(yy + gc);
+ d0[6] = clamp(yy + bc);
+ d0[7] = 255;
+
+ yy = y[j + 8];
+ d1[0] = clamp(yy + rc);
+ d1[1] = clamp(yy + gc);
+ d1[2] = clamp(yy + bc);
+ d1[3] = 255;
+
+ yy = y[j + 8 + 1];
+ d1[4] = clamp(yy + rc);
+ d1[5] = clamp(yy + gc);
+ d1[6] = clamp(yy + bc);
+ d1[7] = 255;
+
+ d0 += 8;
+ d1 += 8;
+
+ c++;
+ }
+ y += 64;
}
- y += 64;
- }
-
- y += 64*6 - 64*2;
- c += 64*6 - 8;
- }
-}
-
-// Y (1 block per MCU) to 8-bit grayscale
-void jpeg_decoder::gray_convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
- uint8 *d = m_pScan_line_0;
- uint8 *s = m_pSample_buf + row * 8;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- *(uint *)d = *(uint *)s;
- *(uint *)(&d[4]) = *(uint *)(&s[4]);
-
- s += 64;
- d += 8;
- }
-}
-
-void jpeg_decoder::expanded_convert()
-{
- int row = m_max_mcu_y_size - m_mcu_lines_left;
-
- uint8* Py = m_pSample_buf + (row / 8) * 64 * m_comp_h_samp[0] + (row & 7) * 8;
-
- uint8* d = m_pScan_line_0;
-
- for (int i = m_max_mcus_per_row; i > 0; i--)
- {
- for (int k = 0; k < m_max_mcu_x_size; k += 8)
- {
- const int Y_ofs = k * 8;
- const int Cb_ofs = Y_ofs + 64 * m_expanded_blocks_per_component;
- const int Cr_ofs = Y_ofs + 64 * m_expanded_blocks_per_component * 2;
- for (int j = 0; j < 8; j++)
- {
- int y = Py[Y_ofs + j];
- int cb = Py[Cb_ofs + j];
- int cr = Py[Cr_ofs + j];
-
- d[0] = clamp(y + m_crr[cr]);
- d[1] = clamp(y + ((m_crg[cr] + m_cbg[cb]) >> 16));
- d[2] = clamp(y + m_cbb[cb]);
- d[3] = 255;
-
- d += 4;
- }
- }
-
- Py += 64 * m_expanded_blocks_per_mcu;
- }
-}
-
-// Find end of image (EOI) marker, so we can return to the user the exact size of the input stream.
-void jpeg_decoder::find_eoi()
-{
- if (!m_progressive_flag)
- {
- // Attempt to read the EOI marker.
- //get_bits_no_markers(m_bits_left & 7);
-
- // Prime the bit buffer
- m_bits_left = 16;
- get_bits(16);
- get_bits(16);
-
- // The next marker _should_ be EOI
- process_markers();
- }
-
- m_total_bytes_read -= m_in_buf_left;
-}
-
-int jpeg_decoder::decode(const void** pScan_line, uint* pScan_line_len)
-{
- if ((m_error_code) || (!m_ready_flag))
- return JPGD_FAILED;
-
- if (m_total_lines_left == 0)
- return JPGD_DONE;
-
- if (m_mcu_lines_left == 0)
- {
- if (setjmp(m_jmp_state))
- return JPGD_FAILED;
-
- if (m_progressive_flag)
- load_next_row();
- else
- decode_next_row();
-
- // Find the EOI marker if that was the last row.
- if (m_total_lines_left <= m_max_mcu_y_size)
- find_eoi();
-
- m_mcu_lines_left = m_max_mcu_y_size;
- }
-
- if (m_freq_domain_chroma_upsample)
- {
- expanded_convert();
- *pScan_line = m_pScan_line_0;
- }
- else
- {
- switch (m_scan_type)
- {
- case JPGD_YH2V2:
- {
- if ((m_mcu_lines_left & 1) == 0)
- {
- H2V2Convert();
- *pScan_line = m_pScan_line_0;
- }
- else
- *pScan_line = m_pScan_line_1;
-
- break;
- }
- case JPGD_YH2V1:
- {
- H2V1Convert();
- *pScan_line = m_pScan_line_0;
- break;
- }
- case JPGD_YH1V2:
- {
- if ((m_mcu_lines_left & 1) == 0)
- {
- H1V2Convert();
- *pScan_line = m_pScan_line_0;
- }
- else
- *pScan_line = m_pScan_line_1;
-
- break;
- }
- case JPGD_YH1V1:
- {
- H1V1Convert();
- *pScan_line = m_pScan_line_0;
- break;
- }
- case JPGD_GRAYSCALE:
- {
- gray_convert();
- *pScan_line = m_pScan_line_0;
-
- break;
- }
- }
- }
-
- *pScan_line_len = m_real_dest_bytes_per_scan_line;
-
- m_mcu_lines_left--;
- m_total_lines_left--;
-
- return JPGD_SUCCESS;
-}
-
-// Creates the tables needed for efficient Huffman decoding.
-void jpeg_decoder::make_huff_table(int index, huff_tables *pH)
-{
- int p, i, l, si;
- uint8 huffsize[257];
- uint huffcode[257];
- uint code;
- uint subtree;
- int code_size;
- int lastp;
- int nextfreeentry;
- int currententry;
-
- pH->ac_table = m_huff_ac[index] != 0;
-
- p = 0;
-
- for (l = 1; l <= 16; l++)
- {
- for (i = 1; i <= m_huff_num[index][l]; i++)
- {
- JPGD_ASSERT(p < 257);
- huffsize[p++] = static_cast<uint8>(l);
- }
- }
-
- huffsize[p] = 0;
-
- lastp = p;
-
- code = 0;
- si = huffsize[0];
- p = 0;
-
- while (huffsize[p])
- {
- while (huffsize[p] == si)
- {
- JPGD_ASSERT(p < 257);
- huffcode[p++] = code;
- code++;
- }
-
- code <<= 1;
- si++;
- }
-
- memset(pH->look_up, 0, sizeof(pH->look_up));
- memset(pH->look_up2, 0, sizeof(pH->look_up2));
- memset(pH->tree, 0, sizeof(pH->tree));
- memset(pH->code_size, 0, sizeof(pH->code_size));
-
- nextfreeentry = -1;
-
- p = 0;
-
- while (p < lastp)
- {
- i = m_huff_val[index][p];
- code = huffcode[p];
- code_size = huffsize[p];
-
- pH->code_size[i] = static_cast<uint8>(code_size);
-
- if (code_size <= 8)
- {
- code <<= (8 - code_size);
-
- for (l = 1 << (8 - code_size); l > 0; l--)
- {
- JPGD_ASSERT(i < JPGD_HUFF_CODE_SIZE_MAX_LENGTH);
- JPGD_ASSERT(code < JPGD_HUFF_CODE_SIZE_MAX_LENGTH);
-
- pH->look_up[code] = i;
-
- bool has_extrabits = false;
- int extra_bits = 0;
- int num_extra_bits = i & 15;
-
- int bits_to_fetch = code_size;
- if (num_extra_bits)
- {
- int total_codesize = code_size + num_extra_bits;
- if (total_codesize <= 8)
- {
- has_extrabits = true;
- extra_bits = ((1 << num_extra_bits) - 1) & (code >> (8 - total_codesize));
- JPGD_ASSERT(extra_bits <= 0x7FFF);
- bits_to_fetch += num_extra_bits;
- }
- }
-
- if (!has_extrabits)
- pH->look_up2[code] = i | (bits_to_fetch << 8);
- else
- pH->look_up2[code] = i | 0x8000 | (extra_bits << 16) | (bits_to_fetch << 8);
-
- code++;
- }
- }
- else
- {
- subtree = (code >> (code_size - 8)) & 0xFF;
-
- currententry = pH->look_up[subtree];
-
- if (currententry == 0)
- {
- pH->look_up[subtree] = currententry = nextfreeentry;
- pH->look_up2[subtree] = currententry = nextfreeentry;
-
- nextfreeentry -= 2;
- }
-
- code <<= (16 - (code_size - 8));
-
- for (l = code_size; l > 9; l--)
- {
- if ((code & 0x8000) == 0)
- currententry--;
-
- unsigned int idx = -currententry - 1;
- JPGD_ASSERT(idx < JPGD_HUFF_TREE_MAX_LENGTH);
- if (pH->tree[idx] == 0)
- {
- pH->tree[idx] = nextfreeentry;
-
- currententry = nextfreeentry;
-
- nextfreeentry -= 2;
- }
- else {
- currententry = pH->tree[idx];
- }
-
- code <<= 1;
- }
-
- if ((code & 0x8000) == 0)
- currententry--;
-
- pH->tree[-currententry - 1] = i;
- }
-
- p++;
- }
-}
-
-// Verifies the quantization tables needed for this scan are available.
-void jpeg_decoder::check_quant_tables()
-{
- for (int i = 0; i < m_comps_in_scan; i++)
- if (m_quant[m_comp_quant[m_comp_list[i]]] == NULL)
- stop_decoding(JPGD_UNDEFINED_QUANT_TABLE);
-}
-
-// Verifies that all the Huffman tables needed for this scan are available.
-void jpeg_decoder::check_huff_tables()
-{
- for (int i = 0; i < m_comps_in_scan; i++)
- {
- if ((m_spectral_start == 0) && (m_huff_num[m_comp_dc_tab[m_comp_list[i]]] == NULL))
- stop_decoding(JPGD_UNDEFINED_HUFF_TABLE);
-
- if ((m_spectral_end > 0) && (m_huff_num[m_comp_ac_tab[m_comp_list[i]]] == NULL))
- stop_decoding(JPGD_UNDEFINED_HUFF_TABLE);
- }
-
- for (int i = 0; i < JPGD_MAX_HUFF_TABLES; i++)
- if (m_huff_num[i])
- {
- if (!m_pHuff_tabs[i])
- m_pHuff_tabs[i] = (huff_tables *)alloc(sizeof(huff_tables));
-
- make_huff_table(i, m_pHuff_tabs[i]);
- }
-}
-
-// Determines the component order inside each MCU.
-// Also calcs how many MCU's are on each row, etc.
-void jpeg_decoder::calc_mcu_block_order()
-{
- int component_num, component_id;
- int max_h_samp = 0, max_v_samp = 0;
-
- for (component_id = 0; component_id < m_comps_in_frame; component_id++)
- {
- if (m_comp_h_samp[component_id] > max_h_samp)
- max_h_samp = m_comp_h_samp[component_id];
-
- if (m_comp_v_samp[component_id] > max_v_samp)
- max_v_samp = m_comp_v_samp[component_id];
- }
-
- for (component_id = 0; component_id < m_comps_in_frame; component_id++)
- {
- m_comp_h_blocks[component_id] = ((((m_image_x_size * m_comp_h_samp[component_id]) + (max_h_samp - 1)) / max_h_samp) + 7) / 8;
- m_comp_v_blocks[component_id] = ((((m_image_y_size * m_comp_v_samp[component_id]) + (max_v_samp - 1)) / max_v_samp) + 7) / 8;
- }
-
- if (m_comps_in_scan == 1)
- {
- m_mcus_per_row = m_comp_h_blocks[m_comp_list[0]];
- m_mcus_per_col = m_comp_v_blocks[m_comp_list[0]];
- }
- else
- {
- m_mcus_per_row = (((m_image_x_size + 7) / 8) + (max_h_samp - 1)) / max_h_samp;
- m_mcus_per_col = (((m_image_y_size + 7) / 8) + (max_v_samp - 1)) / max_v_samp;
- }
-
- if (m_comps_in_scan == 1)
- {
- m_mcu_org[0] = m_comp_list[0];
-
- m_blocks_per_mcu = 1;
- }
- else
- {
- m_blocks_per_mcu = 0;
-
- for (component_num = 0; component_num < m_comps_in_scan; component_num++)
- {
- int num_blocks;
-
- component_id = m_comp_list[component_num];
-
- num_blocks = m_comp_h_samp[component_id] * m_comp_v_samp[component_id];
-
- while (num_blocks--)
- m_mcu_org[m_blocks_per_mcu++] = component_id;
- }
- }
-}
-
-// Starts a new scan.
-int jpeg_decoder::init_scan()
-{
- if (!locate_sos_marker())
- return JPGD_FALSE;
-
- calc_mcu_block_order();
-
- check_huff_tables();
-
- check_quant_tables();
-
- memset(m_last_dc_val, 0, m_comps_in_frame * sizeof(uint));
-
- m_eob_run = 0;
-
- if (m_restart_interval)
- {
- m_restarts_left = m_restart_interval;
- m_next_restart_num = 0;
- }
-
- fix_in_buffer();
-
- return JPGD_TRUE;
-}
-
-// Starts a frame. Determines if the number of components or sampling factors
-// are supported.
-void jpeg_decoder::init_frame()
-{
- int i;
-
- if (m_comps_in_frame == 1)
- {
- if ((m_comp_h_samp[0] != 1) || (m_comp_v_samp[0] != 1))
- stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
-
- m_scan_type = JPGD_GRAYSCALE;
- m_max_blocks_per_mcu = 1;
- m_max_mcu_x_size = 8;
- m_max_mcu_y_size = 8;
- }
- else if (m_comps_in_frame == 3)
- {
- if ( ((m_comp_h_samp[1] != 1) || (m_comp_v_samp[1] != 1)) ||
- ((m_comp_h_samp[2] != 1) || (m_comp_v_samp[2] != 1)) )
- stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
-
- if ((m_comp_h_samp[0] == 1) && (m_comp_v_samp[0] == 1))
- {
- m_scan_type = JPGD_YH1V1;
-
- m_max_blocks_per_mcu = 3;
- m_max_mcu_x_size = 8;
- m_max_mcu_y_size = 8;
- }
- else if ((m_comp_h_samp[0] == 2) && (m_comp_v_samp[0] == 1))
- {
- m_scan_type = JPGD_YH2V1;
- m_max_blocks_per_mcu = 4;
- m_max_mcu_x_size = 16;
- m_max_mcu_y_size = 8;
- }
- else if ((m_comp_h_samp[0] == 1) && (m_comp_v_samp[0] == 2))
- {
- m_scan_type = JPGD_YH1V2;
- m_max_blocks_per_mcu = 4;
- m_max_mcu_x_size = 8;
- m_max_mcu_y_size = 16;
- }
- else if ((m_comp_h_samp[0] == 2) && (m_comp_v_samp[0] == 2))
- {
- m_scan_type = JPGD_YH2V2;
- m_max_blocks_per_mcu = 6;
- m_max_mcu_x_size = 16;
- m_max_mcu_y_size = 16;
- }
- else
- stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
- }
- else
- stop_decoding(JPGD_UNSUPPORTED_COLORSPACE);
-
- m_max_mcus_per_row = (m_image_x_size + (m_max_mcu_x_size - 1)) / m_max_mcu_x_size;
- m_max_mcus_per_col = (m_image_y_size + (m_max_mcu_y_size - 1)) / m_max_mcu_y_size;
-
- // These values are for the *destination* pixels: after conversion.
- if (m_scan_type == JPGD_GRAYSCALE)
- m_dest_bytes_per_pixel = 1;
- else
- m_dest_bytes_per_pixel = 4;
-
- m_dest_bytes_per_scan_line = ((m_image_x_size + 15) & 0xFFF0) * m_dest_bytes_per_pixel;
-
- m_real_dest_bytes_per_scan_line = (m_image_x_size * m_dest_bytes_per_pixel);
-
- // Initialize two scan line buffers.
- m_pScan_line_0 = (uint8 *)alloc(m_dest_bytes_per_scan_line, true);
- if ((m_scan_type == JPGD_YH1V2) || (m_scan_type == JPGD_YH2V2))
- m_pScan_line_1 = (uint8 *)alloc(m_dest_bytes_per_scan_line, true);
-
- m_max_blocks_per_row = m_max_mcus_per_row * m_max_blocks_per_mcu;
-
- // Should never happen
- if (m_max_blocks_per_row > JPGD_MAX_BLOCKS_PER_ROW)
- stop_decoding(JPGD_ASSERTION_ERROR);
-
- // Allocate the coefficient buffer, enough for one MCU
- m_pMCU_coefficients = (jpgd_block_t*)alloc(m_max_blocks_per_mcu * 64 * sizeof(jpgd_block_t));
-
- for (i = 0; i < m_max_blocks_per_mcu; i++)
- m_mcu_block_max_zag[i] = 64;
-
- m_expanded_blocks_per_component = m_comp_h_samp[0] * m_comp_v_samp[0];
- m_expanded_blocks_per_mcu = m_expanded_blocks_per_component * m_comps_in_frame;
- m_expanded_blocks_per_row = m_max_mcus_per_row * m_expanded_blocks_per_mcu;
- // Freq. domain chroma upsampling is only supported for H2V2 subsampling factor (the most common one I've seen).
- m_freq_domain_chroma_upsample = false;
-#if JPGD_SUPPORT_FREQ_DOMAIN_UPSAMPLING
- m_freq_domain_chroma_upsample = (m_expanded_blocks_per_mcu == 4*3);
-#endif
- if (m_freq_domain_chroma_upsample)
- m_pSample_buf = (uint8 *)alloc(m_expanded_blocks_per_row * 64);
- else
- m_pSample_buf = (uint8 *)alloc(m_max_blocks_per_row * 64);
-
- m_total_lines_left = m_image_y_size;
-
- m_mcu_lines_left = 0;
-
- create_look_ups();
-}
-
-// The coeff_buf series of methods originally stored the coefficients
-// into a "virtual" file which was located in EMS, XMS, or a disk file. A cache
-// was used to make this process more efficient. Now, we can store the entire
-// thing in RAM.
-jpeg_decoder::coeff_buf* jpeg_decoder::coeff_buf_open(int block_num_x, int block_num_y, int block_len_x, int block_len_y)
-{
- coeff_buf* cb = (coeff_buf*)alloc(sizeof(coeff_buf));
-
- cb->block_num_x = block_num_x;
- cb->block_num_y = block_num_y;
- cb->block_len_x = block_len_x;
- cb->block_len_y = block_len_y;
- cb->block_size = (block_len_x * block_len_y) * sizeof(jpgd_block_t);
- cb->pData = (uint8 *)alloc(cb->block_size * block_num_x * block_num_y, true);
- return cb;
-}
-
-inline jpgd_block_t *jpeg_decoder::coeff_buf_getp(coeff_buf *cb, int block_x, int block_y)
-{
- JPGD_ASSERT((block_x < cb->block_num_x) && (block_y < cb->block_num_y));
- return (jpgd_block_t *)(cb->pData + block_x * cb->block_size + block_y * (cb->block_size * cb->block_num_x));
-}
-
-// The following methods decode the various types of m_blocks encountered
-// in progressively encoded images.
-void jpeg_decoder::decode_block_dc_first(jpeg_decoder *pD, int component_id, int block_x, int block_y)
-{
- int s, r;
- jpgd_block_t *p = pD->coeff_buf_getp(pD->m_dc_coeffs[component_id], block_x, block_y);
-
- if ((s = pD->huff_decode(pD->m_pHuff_tabs[pD->m_comp_dc_tab[component_id]])) != 0)
- {
- r = pD->get_bits_no_markers(s);
- s = JPGD_HUFF_EXTEND(r, s);
- }
-
- pD->m_last_dc_val[component_id] = (s += pD->m_last_dc_val[component_id]);
-
- p[0] = static_cast<jpgd_block_t>(s << pD->m_successive_low);
-}
-
-void jpeg_decoder::decode_block_dc_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y)
-{
- if (pD->get_bits_no_markers(1))
- {
- jpgd_block_t *p = pD->coeff_buf_getp(pD->m_dc_coeffs[component_id], block_x, block_y);
-
- p[0] |= (1 << pD->m_successive_low);
- }
-}
-
-void jpeg_decoder::decode_block_ac_first(jpeg_decoder *pD, int component_id, int block_x, int block_y)
-{
- int k, s, r;
-
- if (pD->m_eob_run)
- {
- pD->m_eob_run--;
- return;
- }
-
- jpgd_block_t *p = pD->coeff_buf_getp(pD->m_ac_coeffs[component_id], block_x, block_y);
-
- for (k = pD->m_spectral_start; k <= pD->m_spectral_end; k++)
- {
- unsigned int idx = pD->m_comp_ac_tab[component_id];
- JPGD_ASSERT(idx < JPGD_MAX_HUFF_TABLES);
- s = pD->huff_decode(pD->m_pHuff_tabs[idx]);
-
- r = s >> 4;
- s &= 15;
-
- if (s)
- {
- if ((k += r) > 63)
- pD->stop_decoding(JPGD_DECODE_ERROR);
-
- r = pD->get_bits_no_markers(s);
- s = JPGD_HUFF_EXTEND(r, s);
-
- p[g_ZAG[k]] = static_cast<jpgd_block_t>(s << pD->m_successive_low);
- }
- else
- {
- if (r == 15)
- {
- if ((k += 15) > 63)
- pD->stop_decoding(JPGD_DECODE_ERROR);
- }
- else
- {
- pD->m_eob_run = 1 << r;
-
- if (r)
- pD->m_eob_run += pD->get_bits_no_markers(r);
-
- pD->m_eob_run--;
-
- break;
- }
- }
- }
-}
-
-void jpeg_decoder::decode_block_ac_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y)
-{
- int s, k, r;
- int p1 = 1 << pD->m_successive_low;
- int m1 = (-1) << pD->m_successive_low;
- jpgd_block_t *p = pD->coeff_buf_getp(pD->m_ac_coeffs[component_id], block_x, block_y);
- JPGD_ASSERT(pD->m_spectral_end <= 63);
-
- k = pD->m_spectral_start;
-
- if (pD->m_eob_run == 0)
- {
- for ( ; k <= pD->m_spectral_end; k++)
- {
- unsigned int idx = pD->m_comp_ac_tab[component_id];
- JPGD_ASSERT(idx < JPGD_MAX_HUFF_TABLES);
- s = pD->huff_decode(pD->m_pHuff_tabs[idx]);
-
- r = s >> 4;
- s &= 15;
-
- if (s)
- {
- if (s != 1)
- pD->stop_decoding(JPGD_DECODE_ERROR);
-
- if (pD->get_bits_no_markers(1))
- s = p1;
- else
- s = m1;
- }
- else
- {
- if (r != 15)
- {
- pD->m_eob_run = 1 << r;
-
- if (r)
- pD->m_eob_run += pD->get_bits_no_markers(r);
-
- break;
- }
- }
-
- do
- {
- jpgd_block_t *this_coef = p + g_ZAG[k & 63];
-
- if (*this_coef != 0)
- {
- if (pD->get_bits_no_markers(1))
- {
- if ((*this_coef & p1) == 0)
- {
- if (*this_coef >= 0)
- *this_coef = static_cast<jpgd_block_t>(*this_coef + p1);
- else
- *this_coef = static_cast<jpgd_block_t>(*this_coef + m1);
- }
- }
- }
- else
- {
- if (--r < 0)
- break;
- }
-
- k++;
-
- } while (k <= pD->m_spectral_end);
-
- if ((s) && (k < 64))
- {
- p[g_ZAG[k]] = static_cast<jpgd_block_t>(s);
- }
- }
- }
-
- if (pD->m_eob_run > 0)
- {
- for ( ; k <= pD->m_spectral_end; k++)
- {
- jpgd_block_t *this_coef = p + g_ZAG[k & 63]; // logical AND to shut up static code analysis
-
- if (*this_coef != 0)
- {
- if (pD->get_bits_no_markers(1))
- {
- if ((*this_coef & p1) == 0)
- {
- if (*this_coef >= 0)
- *this_coef = static_cast<jpgd_block_t>(*this_coef + p1);
- else
- *this_coef = static_cast<jpgd_block_t>(*this_coef + m1);
- }
- }
- }
- }
-
- pD->m_eob_run--;
- }
-}
-
-// Decode a scan in a progressively encoded image.
-void jpeg_decoder::decode_scan(pDecode_block_func decode_block_func)
-{
- int mcu_row, mcu_col, mcu_block;
- int block_x_mcu[JPGD_MAX_COMPONENTS], m_block_y_mcu[JPGD_MAX_COMPONENTS];
-
- memset(m_block_y_mcu, 0, sizeof(m_block_y_mcu));
-
- for (mcu_col = 0; mcu_col < m_mcus_per_col; mcu_col++)
- {
- int component_num, component_id;
-
- memset(block_x_mcu, 0, sizeof(block_x_mcu));
-
- for (mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
- {
- int block_x_mcu_ofs = 0, block_y_mcu_ofs = 0;
-
- if ((m_restart_interval) && (m_restarts_left == 0))
- process_restart();
-
- for (mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
- {
- component_id = m_mcu_org[mcu_block];
-
- decode_block_func(this, component_id, block_x_mcu[component_id] + block_x_mcu_ofs, m_block_y_mcu[component_id] + block_y_mcu_ofs);
-
- if (m_comps_in_scan == 1)
- block_x_mcu[component_id]++;
- else
- {
- if (++block_x_mcu_ofs == m_comp_h_samp[component_id])
- {
- block_x_mcu_ofs = 0;
-
- if (++block_y_mcu_ofs == m_comp_v_samp[component_id])
- {
- block_y_mcu_ofs = 0;
- block_x_mcu[component_id] += m_comp_h_samp[component_id];
- }
- }
- }
- }
-
- m_restarts_left--;
- }
-
- if (m_comps_in_scan == 1)
- m_block_y_mcu[m_comp_list[0]]++;
- else
- {
- for (component_num = 0; component_num < m_comps_in_scan; component_num++)
- {
- component_id = m_comp_list[component_num];
- m_block_y_mcu[component_id] += m_comp_v_samp[component_id];
- }
- }
- }
-}
-
-// Decode a progressively encoded image.
-void jpeg_decoder::init_progressive()
-{
- int i;
-
- if (m_comps_in_frame == 4)
- stop_decoding(JPGD_UNSUPPORTED_COLORSPACE);
-
- // Allocate the coefficient buffers.
- for (i = 0; i < m_comps_in_frame; i++)
- {
- m_dc_coeffs[i] = coeff_buf_open(m_max_mcus_per_row * m_comp_h_samp[i], m_max_mcus_per_col * m_comp_v_samp[i], 1, 1);
- m_ac_coeffs[i] = coeff_buf_open(m_max_mcus_per_row * m_comp_h_samp[i], m_max_mcus_per_col * m_comp_v_samp[i], 8, 8);
- }
-
- for ( ; ; )
- {
- int dc_only_scan, refinement_scan;
- pDecode_block_func decode_block_func;
-
- if (!init_scan())
- break;
-
- dc_only_scan = (m_spectral_start == 0);
- refinement_scan = (m_successive_high != 0);
-
- if ((m_spectral_start > m_spectral_end) || (m_spectral_end > 63))
- stop_decoding(JPGD_BAD_SOS_SPECTRAL);
-
- if (dc_only_scan)
- {
- if (m_spectral_end)
- stop_decoding(JPGD_BAD_SOS_SPECTRAL);
- }
- else if (m_comps_in_scan != 1) /* AC scans can only contain one component */
- stop_decoding(JPGD_BAD_SOS_SPECTRAL);
-
- if ((refinement_scan) && (m_successive_low != m_successive_high - 1))
- stop_decoding(JPGD_BAD_SOS_SUCCESSIVE);
-
- if (dc_only_scan)
- {
- if (refinement_scan)
- decode_block_func = decode_block_dc_refine;
- else
- decode_block_func = decode_block_dc_first;
- }
- else
- {
- if (refinement_scan)
- decode_block_func = decode_block_ac_refine;
- else
- decode_block_func = decode_block_ac_first;
- }
-
- decode_scan(decode_block_func);
-
- m_bits_left = 16;
- get_bits(16);
- get_bits(16);
- }
-
- m_comps_in_scan = m_comps_in_frame;
-
- for (i = 0; i < m_comps_in_frame; i++)
- m_comp_list[i] = i;
-
- calc_mcu_block_order();
-}
-
-void jpeg_decoder::init_sequential()
-{
- if (!init_scan())
- stop_decoding(JPGD_UNEXPECTED_MARKER);
-}
-
-void jpeg_decoder::decode_start()
-{
- init_frame();
-
- if (m_progressive_flag)
- init_progressive();
- else
- init_sequential();
-}
-
-void jpeg_decoder::decode_init(jpeg_decoder_stream *pStream)
-{
- init(pStream);
- locate_sof_marker();
-}
-
-jpeg_decoder::jpeg_decoder(jpeg_decoder_stream *pStream)
-{
- if (setjmp(m_jmp_state))
- return;
- decode_init(pStream);
-}
-
-int jpeg_decoder::begin_decoding()
-{
- if (m_ready_flag)
- return JPGD_SUCCESS;
-
- if (m_error_code)
- return JPGD_FAILED;
-
- if (setjmp(m_jmp_state))
- return JPGD_FAILED;
-
- decode_start();
-
- m_ready_flag = true;
-
- return JPGD_SUCCESS;
-}
-
-jpeg_decoder::~jpeg_decoder()
-{
- free_all_blocks();
-}
-
-jpeg_decoder_file_stream::jpeg_decoder_file_stream()
-{
- m_pFile = NULL;
- m_eof_flag = false;
- m_error_flag = false;
-}
-
-void jpeg_decoder_file_stream::close()
-{
- if (m_pFile)
- {
- fclose(m_pFile);
- m_pFile = NULL;
- }
-
- m_eof_flag = false;
- m_error_flag = false;
-}
-
-jpeg_decoder_file_stream::~jpeg_decoder_file_stream()
-{
- close();
-}
-
-bool jpeg_decoder_file_stream::open(const char *Pfilename)
-{
- close();
-
- m_eof_flag = false;
- m_error_flag = false;
+ y += 64 * 6 - 64 * 2;
+ c += 64 * 6 - 8;
+ }
+ }
+
+ uint32_t jpeg_decoder::H2V2ConvertFiltered()
+ {
+ const uint BLOCKS_PER_MCU = 6;
+ int y = m_image_y_size - m_total_lines_left;
+ int row = y & 15;
+
+ const int half_image_y_size = (m_image_y_size >> 1) - 1;
+
+ uint8* d0 = m_pScan_line_0;
+
+ int c_y0 = (y - 1) >> 1;
+ int c_y1 = JPGD_MIN(c_y0 + 1, half_image_y_size);
+
+ const uint8_t* p_YSamples = m_pSample_buf;
+ const uint8_t* p_C0Samples = m_pSample_buf;
+ if ((c_y0 >= 0) && (((row & 15) == 0) || ((row & 15) == 15)) && (m_total_lines_left > 1))
+ {
+ assert(y > 0);
+ assert(m_sample_buf_prev_valid);
+
+ if ((row & 15) == 15)
+ p_YSamples = m_pSample_buf_prev;
+
+ p_C0Samples = m_pSample_buf_prev;
+ }
+
+ const int y_sample_base_ofs = ((row & 8) ? 128 : 0) + (row & 7) * 8;
+ const int y0_base = (c_y0 & 7) * 8 + 256;
+ const int y1_base = (c_y1 & 7) * 8 + 256;
+
+ const int half_image_x_size = (m_image_x_size >> 1) - 1;
+
+ static const uint8_t s_muls[2][2][4] =
+ {
+ { { 1, 3, 3, 9 }, { 3, 9, 1, 3 }, },
+ { { 3, 1, 9, 3 }, { 9, 3, 3, 1 } }
+ };
+
+ if (((row & 15) >= 1) && ((row & 15) <= 14))
+ {
+ assert((row & 1) == 1);
+ assert(((y + 1 - 1) >> 1) == c_y0);
+
+ assert(p_YSamples == m_pSample_buf);
+ assert(p_C0Samples == m_pSample_buf);
+
+ uint8* d1 = m_pScan_line_1;
+ const int y_sample_base_ofs1 = (((row + 1) & 8) ? 128 : 0) + ((row + 1) & 7) * 8;
+
+ for (int x = 0; x < m_image_x_size; x++)
+ {
+ int k = (x >> 4) * BLOCKS_PER_MCU * 64 + ((x & 8) ? 64 : 0) + (x & 7);
+ int y_sample0 = p_YSamples[check_sample_buf_ofs(k + y_sample_base_ofs)];
+ int y_sample1 = p_YSamples[check_sample_buf_ofs(k + y_sample_base_ofs1)];
+
+ int c_x0 = (x - 1) >> 1;
+ int c_x1 = JPGD_MIN(c_x0 + 1, half_image_x_size);
+ c_x0 = JPGD_MAX(c_x0, 0);
+
+ int a = (c_x0 >> 3) * BLOCKS_PER_MCU * 64 + (c_x0 & 7);
+ int cb00_sample = p_C0Samples[check_sample_buf_ofs(a + y0_base)];
+ int cr00_sample = p_C0Samples[check_sample_buf_ofs(a + y0_base + 64)];
+
+ int cb01_sample = m_pSample_buf[check_sample_buf_ofs(a + y1_base)];
+ int cr01_sample = m_pSample_buf[check_sample_buf_ofs(a + y1_base + 64)];
+
+ int b = (c_x1 >> 3) * BLOCKS_PER_MCU * 64 + (c_x1 & 7);
+ int cb10_sample = p_C0Samples[check_sample_buf_ofs(b + y0_base)];
+ int cr10_sample = p_C0Samples[check_sample_buf_ofs(b + y0_base + 64)];
+
+ int cb11_sample = m_pSample_buf[check_sample_buf_ofs(b + y1_base)];
+ int cr11_sample = m_pSample_buf[check_sample_buf_ofs(b + y1_base + 64)];
+
+ {
+ const uint8_t* pMuls = &s_muls[row & 1][x & 1][0];
+ int cb = (cb00_sample * pMuls[0] + cb01_sample * pMuls[1] + cb10_sample * pMuls[2] + cb11_sample * pMuls[3] + 8) >> 4;
+ int cr = (cr00_sample * pMuls[0] + cr01_sample * pMuls[1] + cr10_sample * pMuls[2] + cr11_sample * pMuls[3] + 8) >> 4;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d0[0] = clamp(y_sample0 + rc);
+ d0[1] = clamp(y_sample0 + gc);
+ d0[2] = clamp(y_sample0 + bc);
+ d0[3] = 255;
+
+ d0 += 4;
+ }
+
+ {
+ const uint8_t* pMuls = &s_muls[(row + 1) & 1][x & 1][0];
+ int cb = (cb00_sample * pMuls[0] + cb01_sample * pMuls[1] + cb10_sample * pMuls[2] + cb11_sample * pMuls[3] + 8) >> 4;
+ int cr = (cr00_sample * pMuls[0] + cr01_sample * pMuls[1] + cr10_sample * pMuls[2] + cr11_sample * pMuls[3] + 8) >> 4;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d1[0] = clamp(y_sample1 + rc);
+ d1[1] = clamp(y_sample1 + gc);
+ d1[2] = clamp(y_sample1 + bc);
+ d1[3] = 255;
+
+ d1 += 4;
+ }
+
+ if (((x & 1) == 1) && (x < m_image_x_size - 1))
+ {
+ const int nx = x + 1;
+ assert(c_x0 == (nx - 1) >> 1);
+
+ k = (nx >> 4) * BLOCKS_PER_MCU * 64 + ((nx & 8) ? 64 : 0) + (nx & 7);
+ y_sample0 = p_YSamples[check_sample_buf_ofs(k + y_sample_base_ofs)];
+ y_sample1 = p_YSamples[check_sample_buf_ofs(k + y_sample_base_ofs1)];
+
+ {
+ const uint8_t* pMuls = &s_muls[row & 1][nx & 1][0];
+ int cb = (cb00_sample * pMuls[0] + cb01_sample * pMuls[1] + cb10_sample * pMuls[2] + cb11_sample * pMuls[3] + 8) >> 4;
+ int cr = (cr00_sample * pMuls[0] + cr01_sample * pMuls[1] + cr10_sample * pMuls[2] + cr11_sample * pMuls[3] + 8) >> 4;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d0[0] = clamp(y_sample0 + rc);
+ d0[1] = clamp(y_sample0 + gc);
+ d0[2] = clamp(y_sample0 + bc);
+ d0[3] = 255;
+
+ d0 += 4;
+ }
+
+ {
+ const uint8_t* pMuls = &s_muls[(row + 1) & 1][nx & 1][0];
+ int cb = (cb00_sample * pMuls[0] + cb01_sample * pMuls[1] + cb10_sample * pMuls[2] + cb11_sample * pMuls[3] + 8) >> 4;
+ int cr = (cr00_sample * pMuls[0] + cr01_sample * pMuls[1] + cr10_sample * pMuls[2] + cr11_sample * pMuls[3] + 8) >> 4;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d1[0] = clamp(y_sample1 + rc);
+ d1[1] = clamp(y_sample1 + gc);
+ d1[2] = clamp(y_sample1 + bc);
+ d1[3] = 255;
+
+ d1 += 4;
+ }
+
+ ++x;
+ }
+ }
+
+ return 2;
+ }
+ else
+ {
+ for (int x = 0; x < m_image_x_size; x++)
+ {
+ int y_sample = p_YSamples[check_sample_buf_ofs((x >> 4) * BLOCKS_PER_MCU * 64 + ((x & 8) ? 64 : 0) + (x & 7) + y_sample_base_ofs)];
+
+ int c_x0 = (x - 1) >> 1;
+ int c_x1 = JPGD_MIN(c_x0 + 1, half_image_x_size);
+ c_x0 = JPGD_MAX(c_x0, 0);
+
+ int a = (c_x0 >> 3) * BLOCKS_PER_MCU * 64 + (c_x0 & 7);
+ int cb00_sample = p_C0Samples[check_sample_buf_ofs(a + y0_base)];
+ int cr00_sample = p_C0Samples[check_sample_buf_ofs(a + y0_base + 64)];
+
+ int cb01_sample = m_pSample_buf[check_sample_buf_ofs(a + y1_base)];
+ int cr01_sample = m_pSample_buf[check_sample_buf_ofs(a + y1_base + 64)];
+
+ int b = (c_x1 >> 3) * BLOCKS_PER_MCU * 64 + (c_x1 & 7);
+ int cb10_sample = p_C0Samples[check_sample_buf_ofs(b + y0_base)];
+ int cr10_sample = p_C0Samples[check_sample_buf_ofs(b + y0_base + 64)];
+
+ int cb11_sample = m_pSample_buf[check_sample_buf_ofs(b + y1_base)];
+ int cr11_sample = m_pSample_buf[check_sample_buf_ofs(b + y1_base + 64)];
+
+ const uint8_t* pMuls = &s_muls[row & 1][x & 1][0];
+ int cb = (cb00_sample * pMuls[0] + cb01_sample * pMuls[1] + cb10_sample * pMuls[2] + cb11_sample * pMuls[3] + 8) >> 4;
+ int cr = (cr00_sample * pMuls[0] + cr01_sample * pMuls[1] + cr10_sample * pMuls[2] + cr11_sample * pMuls[3] + 8) >> 4;
+
+ int rc = m_crr[cr];
+ int gc = ((m_crg[cr] + m_cbg[cb]) >> 16);
+ int bc = m_cbb[cb];
+
+ d0[0] = clamp(y_sample + rc);
+ d0[1] = clamp(y_sample + gc);
+ d0[2] = clamp(y_sample + bc);
+ d0[3] = 255;
+
+ d0 += 4;
+ }
+
+ return 1;
+ }
+ }
+
+ // Y (1 block per MCU) to 8-bit grayscale
+ void jpeg_decoder::gray_convert()
+ {
+ int row = m_max_mcu_y_size - m_mcu_lines_left;
+ uint8* d = m_pScan_line_0;
+ uint8* s = m_pSample_buf + row * 8;
+
+ for (int i = m_max_mcus_per_row; i > 0; i--)
+ {
+ *(uint*)d = *(uint*)s;
+ *(uint*)(&d[4]) = *(uint*)(&s[4]);
+
+ s += 64;
+ d += 8;
+ }
+ }
+
+ // Find end of image (EOI) marker, so we can return to the user the exact size of the input stream.
+ void jpeg_decoder::find_eoi()
+ {
+ if (!m_progressive_flag)
+ {
+ // Attempt to read the EOI marker.
+ //get_bits_no_markers(m_bits_left & 7);
+
+ // Prime the bit buffer
+ m_bits_left = 16;
+ get_bits(16);
+ get_bits(16);
+
+ // The next marker _should_ be EOI
+ process_markers();
+ }
+
+ m_total_bytes_read -= m_in_buf_left;
+ }
+
+ int jpeg_decoder::decode_next_mcu_row()
+ {
+ if (::setjmp(m_jmp_state))
+ return JPGD_FAILED;
+
+ const bool chroma_y_filtering = ((m_flags & cFlagBoxChromaFiltering) == 0) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2));
+ if (chroma_y_filtering)
+ {
+ std::swap(m_pSample_buf, m_pSample_buf_prev);
+
+ m_sample_buf_prev_valid = true;
+ }
+
+ if (m_progressive_flag)
+ load_next_row();
+ else
+ decode_next_row();
+
+ // Find the EOI marker if that was the last row.
+ if (m_total_lines_left <= m_max_mcu_y_size)
+ find_eoi();
+
+ m_mcu_lines_left = m_max_mcu_y_size;
+ return 0;
+ }
+
+ int jpeg_decoder::decode(const void** pScan_line, uint* pScan_line_len)
+ {
+ if ((m_error_code) || (!m_ready_flag))
+ return JPGD_FAILED;
+
+ if (m_total_lines_left == 0)
+ return JPGD_DONE;
+
+ const bool chroma_y_filtering = ((m_flags & cFlagBoxChromaFiltering) == 0) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2));
+
+ bool get_another_mcu_row = false;
+ bool got_mcu_early = false;
+ if (chroma_y_filtering)
+ {
+ if (m_total_lines_left == m_image_y_size)
+ get_another_mcu_row = true;
+ else if ((m_mcu_lines_left == 1) && (m_total_lines_left > 1))
+ {
+ get_another_mcu_row = true;
+ got_mcu_early = true;
+ }
+ }
+ else
+ {
+ get_another_mcu_row = (m_mcu_lines_left == 0);
+ }
+
+ if (get_another_mcu_row)
+ {
+ int status = decode_next_mcu_row();
+ if (status != 0)
+ return status;
+ }
+
+ switch (m_scan_type)
+ {
+ case JPGD_YH2V2:
+ {
+ if ((m_flags & cFlagBoxChromaFiltering) == 0)
+ {
+ if (m_num_buffered_scanlines == 1)
+ {
+ *pScan_line = m_pScan_line_1;
+ }
+ else if (m_num_buffered_scanlines == 0)
+ {
+ m_num_buffered_scanlines = H2V2ConvertFiltered();
+ *pScan_line = m_pScan_line_0;
+ }
+
+ m_num_buffered_scanlines--;
+ }
+ else
+ {
+ if ((m_mcu_lines_left & 1) == 0)
+ {
+ H2V2Convert();
+ *pScan_line = m_pScan_line_0;
+ }
+ else
+ *pScan_line = m_pScan_line_1;
+ }
+
+ break;
+ }
+ case JPGD_YH2V1:
+ {
+ if ((m_flags & cFlagBoxChromaFiltering) == 0)
+ H2V1ConvertFiltered();
+ else
+ H2V1Convert();
+ *pScan_line = m_pScan_line_0;
+ break;
+ }
+ case JPGD_YH1V2:
+ {
+ if (chroma_y_filtering)
+ {
+ H1V2ConvertFiltered();
+ *pScan_line = m_pScan_line_0;
+ }
+ else
+ {
+ if ((m_mcu_lines_left & 1) == 0)
+ {
+ H1V2Convert();
+ *pScan_line = m_pScan_line_0;
+ }
+ else
+ *pScan_line = m_pScan_line_1;
+ }
+
+ break;
+ }
+ case JPGD_YH1V1:
+ {
+ H1V1Convert();
+ *pScan_line = m_pScan_line_0;
+ break;
+ }
+ case JPGD_GRAYSCALE:
+ {
+ gray_convert();
+ *pScan_line = m_pScan_line_0;
+
+ break;
+ }
+ }
+
+ *pScan_line_len = m_real_dest_bytes_per_scan_line;
+
+ if (!got_mcu_early)
+ {
+ m_mcu_lines_left--;
+ }
+
+ m_total_lines_left--;
+
+ return JPGD_SUCCESS;
+ }
+
+ // Creates the tables needed for efficient Huffman decoding.
+ void jpeg_decoder::make_huff_table(int index, huff_tables* pH)
+ {
+ int p, i, l, si;
+ uint8 huffsize[258];
+ uint huffcode[258];
+ uint code;
+ uint subtree;
+ int code_size;
+ int lastp;
+ int nextfreeentry;
+ int currententry;
+
+ pH->ac_table = m_huff_ac[index] != 0;
+
+ p = 0;
+
+ for (l = 1; l <= 16; l++)
+ {
+ for (i = 1; i <= m_huff_num[index][l]; i++)
+ {
+ if (p >= 257)
+ stop_decoding(JPGD_DECODE_ERROR);
+ huffsize[p++] = static_cast<uint8>(l);
+ }
+ }
+
+ assert(p < 258);
+ huffsize[p] = 0;
+
+ lastp = p;
+
+ code = 0;
+ si = huffsize[0];
+ p = 0;
+
+ while (huffsize[p])
+ {
+ while (huffsize[p] == si)
+ {
+ if (p >= 257)
+ stop_decoding(JPGD_DECODE_ERROR);
+ huffcode[p++] = code;
+ code++;
+ }
+
+ code <<= 1;
+ si++;
+ }
+
+ memset(pH->look_up, 0, sizeof(pH->look_up));
+ memset(pH->look_up2, 0, sizeof(pH->look_up2));
+ memset(pH->tree, 0, sizeof(pH->tree));
+ memset(pH->code_size, 0, sizeof(pH->code_size));
+
+ nextfreeentry = -1;
+
+ p = 0;
+
+ while (p < lastp)
+ {
+ i = m_huff_val[index][p];
+
+ code = huffcode[p];
+ code_size = huffsize[p];
+
+ assert(i < JPGD_HUFF_CODE_SIZE_MAX_LENGTH);
+ pH->code_size[i] = static_cast<uint8>(code_size);
+
+ if (code_size <= 8)
+ {
+ code <<= (8 - code_size);
+
+ for (l = 1 << (8 - code_size); l > 0; l--)
+ {
+ if (code >= 256)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ pH->look_up[code] = i;
+
+ bool has_extrabits = false;
+ int extra_bits = 0;
+ int num_extra_bits = i & 15;
+
+ int bits_to_fetch = code_size;
+ if (num_extra_bits)
+ {
+ int total_codesize = code_size + num_extra_bits;
+ if (total_codesize <= 8)
+ {
+ has_extrabits = true;
+ extra_bits = ((1 << num_extra_bits) - 1) & (code >> (8 - total_codesize));
+
+ if (extra_bits > 0x7FFF)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ bits_to_fetch += num_extra_bits;
+ }
+ }
+
+ if (!has_extrabits)
+ pH->look_up2[code] = i | (bits_to_fetch << 8);
+ else
+ pH->look_up2[code] = i | 0x8000 | (extra_bits << 16) | (bits_to_fetch << 8);
+
+ code++;
+ }
+ }
+ else
+ {
+ subtree = (code >> (code_size - 8)) & 0xFF;
+
+ currententry = pH->look_up[subtree];
+
+ if (currententry == 0)
+ {
+ pH->look_up[subtree] = currententry = nextfreeentry;
+ pH->look_up2[subtree] = currententry = nextfreeentry;
+
+ nextfreeentry -= 2;
+ }
+
+ code <<= (16 - (code_size - 8));
+
+ for (l = code_size; l > 9; l--)
+ {
+ if ((code & 0x8000) == 0)
+ currententry--;
+
+ unsigned int idx = -currententry - 1;
+
+ if (idx >= JPGD_HUFF_TREE_MAX_LENGTH)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ if (pH->tree[idx] == 0)
+ {
+ pH->tree[idx] = nextfreeentry;
+
+ currententry = nextfreeentry;
+
+ nextfreeentry -= 2;
+ }
+ else
+ {
+ currententry = pH->tree[idx];
+ }
+
+ code <<= 1;
+ }
+
+ if ((code & 0x8000) == 0)
+ currententry--;
+
+ if ((-currententry - 1) >= JPGD_HUFF_TREE_MAX_LENGTH)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ pH->tree[-currententry - 1] = i;
+ }
+
+ p++;
+ }
+ }
+
+ // Verifies the quantization tables needed for this scan are available.
+ void jpeg_decoder::check_quant_tables()
+ {
+ for (int i = 0; i < m_comps_in_scan; i++)
+ if (m_quant[m_comp_quant[m_comp_list[i]]] == nullptr)
+ stop_decoding(JPGD_UNDEFINED_QUANT_TABLE);
+ }
+
+ // Verifies that all the Huffman tables needed for this scan are available.
+ void jpeg_decoder::check_huff_tables()
+ {
+ for (int i = 0; i < m_comps_in_scan; i++)
+ {
+ if ((m_spectral_start == 0) && (m_huff_num[m_comp_dc_tab[m_comp_list[i]]] == nullptr))
+ stop_decoding(JPGD_UNDEFINED_HUFF_TABLE);
+
+ if ((m_spectral_end > 0) && (m_huff_num[m_comp_ac_tab[m_comp_list[i]]] == nullptr))
+ stop_decoding(JPGD_UNDEFINED_HUFF_TABLE);
+ }
+
+ for (int i = 0; i < JPGD_MAX_HUFF_TABLES; i++)
+ if (m_huff_num[i])
+ {
+ if (!m_pHuff_tabs[i])
+ m_pHuff_tabs[i] = (huff_tables*)alloc(sizeof(huff_tables));
+
+ make_huff_table(i, m_pHuff_tabs[i]);
+ }
+ }
+
+ // Determines the component order inside each MCU.
+ // Also calcs how many MCU's are on each row, etc.
+ bool jpeg_decoder::calc_mcu_block_order()
+ {
+ int component_num, component_id;
+ int max_h_samp = 0, max_v_samp = 0;
+
+ for (component_id = 0; component_id < m_comps_in_frame; component_id++)
+ {
+ if (m_comp_h_samp[component_id] > max_h_samp)
+ max_h_samp = m_comp_h_samp[component_id];
+
+ if (m_comp_v_samp[component_id] > max_v_samp)
+ max_v_samp = m_comp_v_samp[component_id];
+ }
+
+ for (component_id = 0; component_id < m_comps_in_frame; component_id++)
+ {
+ m_comp_h_blocks[component_id] = ((((m_image_x_size * m_comp_h_samp[component_id]) + (max_h_samp - 1)) / max_h_samp) + 7) / 8;
+ m_comp_v_blocks[component_id] = ((((m_image_y_size * m_comp_v_samp[component_id]) + (max_v_samp - 1)) / max_v_samp) + 7) / 8;
+ }
+
+ if (m_comps_in_scan == 1)
+ {
+ m_mcus_per_row = m_comp_h_blocks[m_comp_list[0]];
+ m_mcus_per_col = m_comp_v_blocks[m_comp_list[0]];
+ }
+ else
+ {
+ m_mcus_per_row = (((m_image_x_size + 7) / 8) + (max_h_samp - 1)) / max_h_samp;
+ m_mcus_per_col = (((m_image_y_size + 7) / 8) + (max_v_samp - 1)) / max_v_samp;
+ }
+
+ if (m_comps_in_scan == 1)
+ {
+ m_mcu_org[0] = m_comp_list[0];
+
+ m_blocks_per_mcu = 1;
+ }
+ else
+ {
+ m_blocks_per_mcu = 0;
+
+ for (component_num = 0; component_num < m_comps_in_scan; component_num++)
+ {
+ int num_blocks;
+
+ component_id = m_comp_list[component_num];
+
+ num_blocks = m_comp_h_samp[component_id] * m_comp_v_samp[component_id];
+
+ while (num_blocks--)
+ m_mcu_org[m_blocks_per_mcu++] = component_id;
+ }
+ }
+
+ if (m_blocks_per_mcu > m_max_blocks_per_mcu)
+ return false;
+
+ for (int mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
+ {
+ int comp_id = m_mcu_org[mcu_block];
+ if (comp_id >= JPGD_MAX_QUANT_TABLES)
+ return false;
+ }
+
+ return true;
+ }
+
+ // Starts a new scan.
+ int jpeg_decoder::init_scan()
+ {
+ if (!locate_sos_marker())
+ return JPGD_FALSE;
+
+ if (!calc_mcu_block_order())
+ return JPGD_FALSE;
+
+ check_huff_tables();
+
+ check_quant_tables();
+
+ memset(m_last_dc_val, 0, m_comps_in_frame * sizeof(uint));
+
+ m_eob_run = 0;
+
+ if (m_restart_interval)
+ {
+ m_restarts_left = m_restart_interval;
+ m_next_restart_num = 0;
+ }
+
+ fix_in_buffer();
+
+ return JPGD_TRUE;
+ }
+
+ // Starts a frame. Determines if the number of components or sampling factors
+ // are supported.
+ void jpeg_decoder::init_frame()
+ {
+ int i;
+
+ if (m_comps_in_frame == 1)
+ {
+ if ((m_comp_h_samp[0] != 1) || (m_comp_v_samp[0] != 1))
+ stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
+
+ m_scan_type = JPGD_GRAYSCALE;
+ m_max_blocks_per_mcu = 1;
+ m_max_mcu_x_size = 8;
+ m_max_mcu_y_size = 8;
+ }
+ else if (m_comps_in_frame == 3)
+ {
+ if (((m_comp_h_samp[1] != 1) || (m_comp_v_samp[1] != 1)) ||
+ ((m_comp_h_samp[2] != 1) || (m_comp_v_samp[2] != 1)))
+ stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
+
+ if ((m_comp_h_samp[0] == 1) && (m_comp_v_samp[0] == 1))
+ {
+ m_scan_type = JPGD_YH1V1;
+
+ m_max_blocks_per_mcu = 3;
+ m_max_mcu_x_size = 8;
+ m_max_mcu_y_size = 8;
+ }
+ else if ((m_comp_h_samp[0] == 2) && (m_comp_v_samp[0] == 1))
+ {
+ m_scan_type = JPGD_YH2V1;
+ m_max_blocks_per_mcu = 4;
+ m_max_mcu_x_size = 16;
+ m_max_mcu_y_size = 8;
+ }
+ else if ((m_comp_h_samp[0] == 1) && (m_comp_v_samp[0] == 2))
+ {
+ m_scan_type = JPGD_YH1V2;
+ m_max_blocks_per_mcu = 4;
+ m_max_mcu_x_size = 8;
+ m_max_mcu_y_size = 16;
+ }
+ else if ((m_comp_h_samp[0] == 2) && (m_comp_v_samp[0] == 2))
+ {
+ m_scan_type = JPGD_YH2V2;
+ m_max_blocks_per_mcu = 6;
+ m_max_mcu_x_size = 16;
+ m_max_mcu_y_size = 16;
+ }
+ else
+ stop_decoding(JPGD_UNSUPPORTED_SAMP_FACTORS);
+ }
+ else
+ stop_decoding(JPGD_UNSUPPORTED_COLORSPACE);
+
+ m_max_mcus_per_row = (m_image_x_size + (m_max_mcu_x_size - 1)) / m_max_mcu_x_size;
+ m_max_mcus_per_col = (m_image_y_size + (m_max_mcu_y_size - 1)) / m_max_mcu_y_size;
+
+ // These values are for the *destination* pixels: after conversion.
+ if (m_scan_type == JPGD_GRAYSCALE)
+ m_dest_bytes_per_pixel = 1;
+ else
+ m_dest_bytes_per_pixel = 4;
+
+ m_dest_bytes_per_scan_line = ((m_image_x_size + 15) & 0xFFF0) * m_dest_bytes_per_pixel;
+
+ m_real_dest_bytes_per_scan_line = (m_image_x_size * m_dest_bytes_per_pixel);
+
+ // Initialize two scan line buffers.
+ m_pScan_line_0 = (uint8*)alloc_aligned(m_dest_bytes_per_scan_line, true);
+ if ((m_scan_type == JPGD_YH1V2) || (m_scan_type == JPGD_YH2V2))
+ m_pScan_line_1 = (uint8*)alloc_aligned(m_dest_bytes_per_scan_line, true);
+
+ m_max_blocks_per_row = m_max_mcus_per_row * m_max_blocks_per_mcu;
+
+ // Should never happen
+ if (m_max_blocks_per_row > JPGD_MAX_BLOCKS_PER_ROW)
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ // Allocate the coefficient buffer, enough for one MCU
+ m_pMCU_coefficients = (jpgd_block_coeff_t *)alloc_aligned(m_max_blocks_per_mcu * 64 * sizeof(jpgd_block_coeff_t));
+
+ for (i = 0; i < m_max_blocks_per_mcu; i++)
+ m_mcu_block_max_zag[i] = 64;
+
+ m_pSample_buf = (uint8*)alloc_aligned(m_max_blocks_per_row * 64);
+ m_pSample_buf_prev = (uint8*)alloc_aligned(m_max_blocks_per_row * 64);
+
+ m_total_lines_left = m_image_y_size;
+
+ m_mcu_lines_left = 0;
+
+ create_look_ups();
+ }
+
+ // The coeff_buf series of methods originally stored the coefficients
+ // into a "virtual" file which was located in EMS, XMS, or a disk file. A cache
+ // was used to make this process more efficient. Now, we can store the entire
+ // thing in RAM.
+ jpeg_decoder::coeff_buf* jpeg_decoder::coeff_buf_open(int block_num_x, int block_num_y, int block_len_x, int block_len_y)
+ {
+ coeff_buf* cb = (coeff_buf*)alloc(sizeof(coeff_buf));
+
+ cb->block_num_x = block_num_x;
+ cb->block_num_y = block_num_y;
+ cb->block_len_x = block_len_x;
+ cb->block_len_y = block_len_y;
+ cb->block_size = (block_len_x * block_len_y) * sizeof(jpgd_block_coeff_t);
+ cb->pData = (uint8*)alloc(cb->block_size * block_num_x * block_num_y, true);
+ return cb;
+ }
+
+ inline jpgd_block_coeff_t* jpeg_decoder::coeff_buf_getp(coeff_buf* cb, int block_x, int block_y)
+ {
+ if ((block_x >= cb->block_num_x) || (block_y >= cb->block_num_y))
+ stop_decoding(JPGD_DECODE_ERROR);
+
+ return (jpgd_block_coeff_t*)(cb->pData + block_x * cb->block_size + block_y * (cb->block_size * cb->block_num_x));
+ }
+
+ // The following methods decode the various types of m_blocks encountered
+ // in progressively encoded images.
+ void jpeg_decoder::decode_block_dc_first(jpeg_decoder* pD, int component_id, int block_x, int block_y)
+ {
+ int s, r;
+ jpgd_block_coeff_t* p = pD->coeff_buf_getp(pD->m_dc_coeffs[component_id], block_x, block_y);
+
+ if ((s = pD->huff_decode(pD->m_pHuff_tabs[pD->m_comp_dc_tab[component_id]])) != 0)
+ {
+ if (s >= 16)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ r = pD->get_bits_no_markers(s);
+ s = JPGD_HUFF_EXTEND(r, s);
+ }
+
+ pD->m_last_dc_val[component_id] = (s += pD->m_last_dc_val[component_id]);
+
+ p[0] = static_cast<jpgd_block_coeff_t>(s << pD->m_successive_low);
+ }
+
+ void jpeg_decoder::decode_block_dc_refine(jpeg_decoder* pD, int component_id, int block_x, int block_y)
+ {
+ if (pD->get_bits_no_markers(1))
+ {
+ jpgd_block_coeff_t* p = pD->coeff_buf_getp(pD->m_dc_coeffs[component_id], block_x, block_y);
+
+ p[0] |= (1 << pD->m_successive_low);
+ }
+ }
+
+ void jpeg_decoder::decode_block_ac_first(jpeg_decoder* pD, int component_id, int block_x, int block_y)
+ {
+ int k, s, r;
+
+ if (pD->m_eob_run)
+ {
+ pD->m_eob_run--;
+ return;
+ }
+
+ jpgd_block_coeff_t* p = pD->coeff_buf_getp(pD->m_ac_coeffs[component_id], block_x, block_y);
+
+ for (k = pD->m_spectral_start; k <= pD->m_spectral_end; k++)
+ {
+ unsigned int idx = pD->m_comp_ac_tab[component_id];
+ if (idx >= JPGD_MAX_HUFF_TABLES)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ s = pD->huff_decode(pD->m_pHuff_tabs[idx]);
+
+ r = s >> 4;
+ s &= 15;
+
+ if (s)
+ {
+ if ((k += r) > 63)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ r = pD->get_bits_no_markers(s);
+ s = JPGD_HUFF_EXTEND(r, s);
+
+ p[g_ZAG[k]] = static_cast<jpgd_block_coeff_t>(s << pD->m_successive_low);
+ }
+ else
+ {
+ if (r == 15)
+ {
+ if ((k += 15) > 63)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+ }
+ else
+ {
+ pD->m_eob_run = 1 << r;
+
+ if (r)
+ pD->m_eob_run += pD->get_bits_no_markers(r);
+
+ pD->m_eob_run--;
+
+ break;
+ }
+ }
+ }
+ }
+
+ void jpeg_decoder::decode_block_ac_refine(jpeg_decoder* pD, int component_id, int block_x, int block_y)
+ {
+ int s, k, r;
+
+ int p1 = 1 << pD->m_successive_low;
+
+ //int m1 = (-1) << pD->m_successive_low;
+ int m1 = static_cast<int>((UINT32_MAX << pD->m_successive_low));
+
+ jpgd_block_coeff_t* p = pD->coeff_buf_getp(pD->m_ac_coeffs[component_id], block_x, block_y);
+ if (pD->m_spectral_end > 63)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ k = pD->m_spectral_start;
+
+ if (pD->m_eob_run == 0)
+ {
+ for (; k <= pD->m_spectral_end; k++)
+ {
+ unsigned int idx = pD->m_comp_ac_tab[component_id];
+ if (idx >= JPGD_MAX_HUFF_TABLES)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ s = pD->huff_decode(pD->m_pHuff_tabs[idx]);
+
+ r = s >> 4;
+ s &= 15;
+
+ if (s)
+ {
+ if (s != 1)
+ pD->stop_decoding(JPGD_DECODE_ERROR);
+
+ if (pD->get_bits_no_markers(1))
+ s = p1;
+ else
+ s = m1;
+ }
+ else
+ {
+ if (r != 15)
+ {
+ pD->m_eob_run = 1 << r;
+
+ if (r)
+ pD->m_eob_run += pD->get_bits_no_markers(r);
+
+ break;
+ }
+ }
+
+ do
+ {
+ jpgd_block_coeff_t* this_coef = p + g_ZAG[k & 63];
+
+ if (*this_coef != 0)
+ {
+ if (pD->get_bits_no_markers(1))
+ {
+ if ((*this_coef & p1) == 0)
+ {
+ if (*this_coef >= 0)
+ *this_coef = static_cast<jpgd_block_coeff_t>(*this_coef + p1);
+ else
+ *this_coef = static_cast<jpgd_block_coeff_t>(*this_coef + m1);
+ }
+ }
+ }
+ else
+ {
+ if (--r < 0)
+ break;
+ }
+
+ k++;
+
+ } while (k <= pD->m_spectral_end);
+
+ if ((s) && (k < 64))
+ {
+ p[g_ZAG[k]] = static_cast<jpgd_block_coeff_t>(s);
+ }
+ }
+ }
+
+ if (pD->m_eob_run > 0)
+ {
+ for (; k <= pD->m_spectral_end; k++)
+ {
+ jpgd_block_coeff_t* this_coef = p + g_ZAG[k & 63]; // logical AND to shut up static code analysis
+
+ if (*this_coef != 0)
+ {
+ if (pD->get_bits_no_markers(1))
+ {
+ if ((*this_coef & p1) == 0)
+ {
+ if (*this_coef >= 0)
+ *this_coef = static_cast<jpgd_block_coeff_t>(*this_coef + p1);
+ else
+ *this_coef = static_cast<jpgd_block_coeff_t>(*this_coef + m1);
+ }
+ }
+ }
+ }
+
+ pD->m_eob_run--;
+ }
+ }
+
+ // Decode a scan in a progressively encoded image.
+ void jpeg_decoder::decode_scan(pDecode_block_func decode_block_func)
+ {
+ int mcu_row, mcu_col, mcu_block;
+ int block_x_mcu[JPGD_MAX_COMPONENTS], block_y_mcu[JPGD_MAX_COMPONENTS];
+
+ memset(block_y_mcu, 0, sizeof(block_y_mcu));
+
+ for (mcu_col = 0; mcu_col < m_mcus_per_col; mcu_col++)
+ {
+ int component_num, component_id;
+
+ memset(block_x_mcu, 0, sizeof(block_x_mcu));
+
+ for (mcu_row = 0; mcu_row < m_mcus_per_row; mcu_row++)
+ {
+ int block_x_mcu_ofs = 0, block_y_mcu_ofs = 0;
+
+ if ((m_restart_interval) && (m_restarts_left == 0))
+ process_restart();
+
+ for (mcu_block = 0; mcu_block < m_blocks_per_mcu; mcu_block++)
+ {
+ component_id = m_mcu_org[mcu_block];
+
+ decode_block_func(this, component_id, block_x_mcu[component_id] + block_x_mcu_ofs, block_y_mcu[component_id] + block_y_mcu_ofs);
+
+ if (m_comps_in_scan == 1)
+ block_x_mcu[component_id]++;
+ else
+ {
+ if (++block_x_mcu_ofs == m_comp_h_samp[component_id])
+ {
+ block_x_mcu_ofs = 0;
+
+ if (++block_y_mcu_ofs == m_comp_v_samp[component_id])
+ {
+ block_y_mcu_ofs = 0;
+ block_x_mcu[component_id] += m_comp_h_samp[component_id];
+ }
+ }
+ }
+ }
+
+ m_restarts_left--;
+ }
+
+ if (m_comps_in_scan == 1)
+ block_y_mcu[m_comp_list[0]]++;
+ else
+ {
+ for (component_num = 0; component_num < m_comps_in_scan; component_num++)
+ {
+ component_id = m_comp_list[component_num];
+ block_y_mcu[component_id] += m_comp_v_samp[component_id];
+ }
+ }
+ }
+ }
+
+ // Decode a progressively encoded image.
+ void jpeg_decoder::init_progressive()
+ {
+ int i;
+
+ if (m_comps_in_frame == 4)
+ stop_decoding(JPGD_UNSUPPORTED_COLORSPACE);
+
+ // Allocate the coefficient buffers.
+ for (i = 0; i < m_comps_in_frame; i++)
+ {
+ m_dc_coeffs[i] = coeff_buf_open(m_max_mcus_per_row * m_comp_h_samp[i], m_max_mcus_per_col * m_comp_v_samp[i], 1, 1);
+ m_ac_coeffs[i] = coeff_buf_open(m_max_mcus_per_row * m_comp_h_samp[i], m_max_mcus_per_col * m_comp_v_samp[i], 8, 8);
+ }
+
+ // See https://libjpeg-turbo.org/pmwiki/uploads/About/TwoIssueswiththeJPEGStandard.pdf
+ uint32_t total_scans = 0;
+ const uint32_t MAX_SCANS_TO_PROCESS = 1000;
+
+ for (; ; )
+ {
+ int dc_only_scan, refinement_scan;
+ pDecode_block_func decode_block_func;
+
+ if (!init_scan())
+ break;
+
+ dc_only_scan = (m_spectral_start == 0);
+ refinement_scan = (m_successive_high != 0);
+
+ if ((m_spectral_start > m_spectral_end) || (m_spectral_end > 63))
+ stop_decoding(JPGD_BAD_SOS_SPECTRAL);
+
+ if (dc_only_scan)
+ {
+ if (m_spectral_end)
+ stop_decoding(JPGD_BAD_SOS_SPECTRAL);
+ }
+ else if (m_comps_in_scan != 1) /* AC scans can only contain one component */
+ stop_decoding(JPGD_BAD_SOS_SPECTRAL);
+
+ if ((refinement_scan) && (m_successive_low != m_successive_high - 1))
+ stop_decoding(JPGD_BAD_SOS_SUCCESSIVE);
+
+ if (dc_only_scan)
+ {
+ if (refinement_scan)
+ decode_block_func = decode_block_dc_refine;
+ else
+ decode_block_func = decode_block_dc_first;
+ }
+ else
+ {
+ if (refinement_scan)
+ decode_block_func = decode_block_ac_refine;
+ else
+ decode_block_func = decode_block_ac_first;
+ }
+
+ decode_scan(decode_block_func);
+
+ m_bits_left = 16;
+ get_bits(16);
+ get_bits(16);
+
+ total_scans++;
+ if (total_scans > MAX_SCANS_TO_PROCESS)
+ stop_decoding(JPGD_TOO_MANY_SCANS);
+ }
+
+ m_comps_in_scan = m_comps_in_frame;
+
+ for (i = 0; i < m_comps_in_frame; i++)
+ m_comp_list[i] = i;
+
+ if (!calc_mcu_block_order())
+ stop_decoding(JPGD_DECODE_ERROR);
+ }
+
+ void jpeg_decoder::init_sequential()
+ {
+ if (!init_scan())
+ stop_decoding(JPGD_UNEXPECTED_MARKER);
+ }
+
+ void jpeg_decoder::decode_start()
+ {
+ init_frame();
+
+ if (m_progressive_flag)
+ init_progressive();
+ else
+ init_sequential();
+ }
+
+ void jpeg_decoder::decode_init(jpeg_decoder_stream* pStream, uint32_t flags)
+ {
+ init(pStream, flags);
+ locate_sof_marker();
+ }
+
+ jpeg_decoder::jpeg_decoder(jpeg_decoder_stream* pStream, uint32_t flags)
+ {
+ if (::setjmp(m_jmp_state))
+ return;
+ decode_init(pStream, flags);
+ }
+
+ int jpeg_decoder::begin_decoding()
+ {
+ if (m_ready_flag)
+ return JPGD_SUCCESS;
+
+ if (m_error_code)
+ return JPGD_FAILED;
+
+ if (::setjmp(m_jmp_state))
+ return JPGD_FAILED;
+
+ decode_start();
+
+ m_ready_flag = true;
+
+ return JPGD_SUCCESS;
+ }
+
+ jpeg_decoder::~jpeg_decoder()
+ {
+ free_all_blocks();
+ }
+
+ jpeg_decoder_file_stream::jpeg_decoder_file_stream()
+ {
+ m_pFile = nullptr;
+ m_eof_flag = false;
+ m_error_flag = false;
+ }
+
+ void jpeg_decoder_file_stream::close()
+ {
+ if (m_pFile)
+ {
+ fclose(m_pFile);
+ m_pFile = nullptr;
+ }
+
+ m_eof_flag = false;
+ m_error_flag = false;
+ }
+
+ jpeg_decoder_file_stream::~jpeg_decoder_file_stream()
+ {
+ close();
+ }
+
+ bool jpeg_decoder_file_stream::open(const char* Pfilename)
+ {
+ close();
+
+ m_eof_flag = false;
+ m_error_flag = false;
#if defined(_MSC_VER)
- m_pFile = NULL;
- fopen_s(&m_pFile, Pfilename, "rb");
+ m_pFile = nullptr;
+ fopen_s(&m_pFile, Pfilename, "rb");
#else
- m_pFile = fopen(Pfilename, "rb");
+ m_pFile = fopen(Pfilename, "rb");
#endif
- return m_pFile != NULL;
-}
-
-int jpeg_decoder_file_stream::read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag)
-{
- if (!m_pFile)
- return -1;
-
- if (m_eof_flag)
- {
- *pEOF_flag = true;
- return 0;
- }
-
- if (m_error_flag)
- return -1;
-
- int bytes_read = static_cast<int>(fread(pBuf, 1, max_bytes_to_read, m_pFile));
- if (bytes_read < max_bytes_to_read)
- {
- if (ferror(m_pFile))
- {
- m_error_flag = true;
- return -1;
- }
-
- m_eof_flag = true;
- *pEOF_flag = true;
- }
-
- return bytes_read;
-}
-
-bool jpeg_decoder_mem_stream::open(const uint8 *pSrc_data, uint size)
-{
- close();
- m_pSrc_data = pSrc_data;
- m_ofs = 0;
- m_size = size;
- return true;
-}
-
-int jpeg_decoder_mem_stream::read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag)
-{
- *pEOF_flag = false;
-
- if (!m_pSrc_data)
- return -1;
-
- uint bytes_remaining = m_size - m_ofs;
- if ((uint)max_bytes_to_read > bytes_remaining)
- {
- max_bytes_to_read = bytes_remaining;
- *pEOF_flag = true;
- }
-
- memcpy(pBuf, m_pSrc_data + m_ofs, max_bytes_to_read);
- m_ofs += max_bytes_to_read;
-
- return max_bytes_to_read;
-}
-
-unsigned char *decompress_jpeg_image_from_stream(jpeg_decoder_stream *pStream, int *width, int *height, int *actual_comps, int req_comps)
-{
- if (!actual_comps)
- return NULL;
- *actual_comps = 0;
-
- if ((!pStream) || (!width) || (!height) || (!req_comps))
- return NULL;
-
- if ((req_comps != 1) && (req_comps != 3) && (req_comps != 4))
- return NULL;
-
- jpeg_decoder decoder(pStream);
- if (decoder.get_error_code() != JPGD_SUCCESS)
- return NULL;
-
- const int image_width = decoder.get_width(), image_height = decoder.get_height();
- *width = image_width;
- *height = image_height;
- *actual_comps = decoder.get_num_components();
-
- if (decoder.begin_decoding() != JPGD_SUCCESS)
- return NULL;
-
- const int dst_bpl = image_width * req_comps;
-
- uint8 *pImage_data = (uint8*)jpgd_malloc(dst_bpl * image_height);
- if (!pImage_data)
- return NULL;
-
- for (int y = 0; y < image_height; y++)
- {
- const uint8* pScan_line;
- uint scan_line_len;
- if (decoder.decode((const void**)&pScan_line, &scan_line_len) != JPGD_SUCCESS)
- {
- jpgd_free(pImage_data);
- return NULL;
- }
-
- uint8 *pDst = pImage_data + y * dst_bpl;
-
- if (((req_comps == 1) && (decoder.get_num_components() == 1)) || ((req_comps == 4) && (decoder.get_num_components() == 3)))
- memcpy(pDst, pScan_line, dst_bpl);
- else if (decoder.get_num_components() == 1)
- {
- if (req_comps == 3)
- {
- for (int x = 0; x < image_width; x++)
- {
- uint8 luma = pScan_line[x];
- pDst[0] = luma;
- pDst[1] = luma;
- pDst[2] = luma;
- pDst += 3;
- }
- }
- else
- {
- for (int x = 0; x < image_width; x++)
- {
- uint8 luma = pScan_line[x];
- pDst[0] = luma;
- pDst[1] = luma;
- pDst[2] = luma;
- pDst[3] = 255;
- pDst += 4;
- }
- }
- }
- else if (decoder.get_num_components() == 3)
- {
- if (req_comps == 1)
- {
- const int YR = 19595, YG = 38470, YB = 7471;
- for (int x = 0; x < image_width; x++)
- {
- int r = pScan_line[x*4+0];
- int g = pScan_line[x*4+1];
- int b = pScan_line[x*4+2];
- *pDst++ = static_cast<uint8>((r * YR + g * YG + b * YB + 32768) >> 16);
- }
- }
- else
- {
- for (int x = 0; x < image_width; x++)
- {
- pDst[0] = pScan_line[x*4+0];
- pDst[1] = pScan_line[x*4+1];
- pDst[2] = pScan_line[x*4+2];
- pDst += 3;
- }
- }
- }
- }
-
- return pImage_data;
-}
-
-unsigned char *decompress_jpeg_image_from_memory(const unsigned char *pSrc_data, int src_data_size, int *width, int *height, int *actual_comps, int req_comps)
-{
- jpgd::jpeg_decoder_mem_stream mem_stream(pSrc_data, src_data_size);
- return decompress_jpeg_image_from_stream(&mem_stream, width, height, actual_comps, req_comps);
-}
-
-unsigned char *decompress_jpeg_image_from_file(const char *pSrc_filename, int *width, int *height, int *actual_comps, int req_comps)
-{
- jpgd::jpeg_decoder_file_stream file_stream;
- if (!file_stream.open(pSrc_filename))
- return NULL;
- return decompress_jpeg_image_from_stream(&file_stream, width, height, actual_comps, req_comps);
-}
-
-} // namespace jpgd \ No newline at end of file
+ return m_pFile != nullptr;
+ }
+
+ int jpeg_decoder_file_stream::read(uint8* pBuf, int max_bytes_to_read, bool* pEOF_flag)
+ {
+ if (!m_pFile)
+ return -1;
+
+ if (m_eof_flag)
+ {
+ *pEOF_flag = true;
+ return 0;
+ }
+
+ if (m_error_flag)
+ return -1;
+
+ int bytes_read = static_cast<int>(fread(pBuf, 1, max_bytes_to_read, m_pFile));
+ if (bytes_read < max_bytes_to_read)
+ {
+ if (ferror(m_pFile))
+ {
+ m_error_flag = true;
+ return -1;
+ }
+
+ m_eof_flag = true;
+ *pEOF_flag = true;
+ }
+
+ return bytes_read;
+ }
+
+ bool jpeg_decoder_mem_stream::open(const uint8* pSrc_data, uint size)
+ {
+ close();
+ m_pSrc_data = pSrc_data;
+ m_ofs = 0;
+ m_size = size;
+ return true;
+ }
+
+ int jpeg_decoder_mem_stream::read(uint8* pBuf, int max_bytes_to_read, bool* pEOF_flag)
+ {
+ *pEOF_flag = false;
+
+ if (!m_pSrc_data)
+ return -1;
+
+ uint bytes_remaining = m_size - m_ofs;
+ if ((uint)max_bytes_to_read > bytes_remaining)
+ {
+ max_bytes_to_read = bytes_remaining;
+ *pEOF_flag = true;
+ }
+
+ memcpy(pBuf, m_pSrc_data + m_ofs, max_bytes_to_read);
+ m_ofs += max_bytes_to_read;
+
+ return max_bytes_to_read;
+ }
+
+ unsigned char* decompress_jpeg_image_from_stream(jpeg_decoder_stream* pStream, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags)
+ {
+ if (!actual_comps)
+ return nullptr;
+ *actual_comps = 0;
+
+ if ((!pStream) || (!width) || (!height) || (!req_comps))
+ return nullptr;
+
+ if ((req_comps != 1) && (req_comps != 3) && (req_comps != 4))
+ return nullptr;
+
+ jpeg_decoder decoder(pStream, flags);
+ if (decoder.get_error_code() != JPGD_SUCCESS)
+ return nullptr;
+
+ const int image_width = decoder.get_width(), image_height = decoder.get_height();
+ *width = image_width;
+ *height = image_height;
+ *actual_comps = decoder.get_num_components();
+
+ if (decoder.begin_decoding() != JPGD_SUCCESS)
+ return nullptr;
+
+ const int dst_bpl = image_width * req_comps;
+
+ uint8* pImage_data = (uint8*)jpgd_malloc(dst_bpl * image_height);
+ if (!pImage_data)
+ return nullptr;
+
+ for (int y = 0; y < image_height; y++)
+ {
+ const uint8* pScan_line;
+ uint scan_line_len;
+ if (decoder.decode((const void**)&pScan_line, &scan_line_len) != JPGD_SUCCESS)
+ {
+ jpgd_free(pImage_data);
+ return nullptr;
+ }
+
+ uint8* pDst = pImage_data + y * dst_bpl;
+
+ if (((req_comps == 1) && (decoder.get_num_components() == 1)) || ((req_comps == 4) && (decoder.get_num_components() == 3)))
+ memcpy(pDst, pScan_line, dst_bpl);
+ else if (decoder.get_num_components() == 1)
+ {
+ if (req_comps == 3)
+ {
+ for (int x = 0; x < image_width; x++)
+ {
+ uint8 luma = pScan_line[x];
+ pDst[0] = luma;
+ pDst[1] = luma;
+ pDst[2] = luma;
+ pDst += 3;
+ }
+ }
+ else
+ {
+ for (int x = 0; x < image_width; x++)
+ {
+ uint8 luma = pScan_line[x];
+ pDst[0] = luma;
+ pDst[1] = luma;
+ pDst[2] = luma;
+ pDst[3] = 255;
+ pDst += 4;
+ }
+ }
+ }
+ else if (decoder.get_num_components() == 3)
+ {
+ if (req_comps == 1)
+ {
+ const int YR = 19595, YG = 38470, YB = 7471;
+ for (int x = 0; x < image_width; x++)
+ {
+ int r = pScan_line[x * 4 + 0];
+ int g = pScan_line[x * 4 + 1];
+ int b = pScan_line[x * 4 + 2];
+ *pDst++ = static_cast<uint8>((r * YR + g * YG + b * YB + 32768) >> 16);
+ }
+ }
+ else
+ {
+ for (int x = 0; x < image_width; x++)
+ {
+ pDst[0] = pScan_line[x * 4 + 0];
+ pDst[1] = pScan_line[x * 4 + 1];
+ pDst[2] = pScan_line[x * 4 + 2];
+ pDst += 3;
+ }
+ }
+ }
+ }
+
+ return pImage_data;
+ }
+
+ unsigned char* decompress_jpeg_image_from_memory(const unsigned char* pSrc_data, int src_data_size, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags)
+ {
+ jpgd::jpeg_decoder_mem_stream mem_stream(pSrc_data, src_data_size);
+ return decompress_jpeg_image_from_stream(&mem_stream, width, height, actual_comps, req_comps, flags);
+ }
+
+ unsigned char* decompress_jpeg_image_from_file(const char* pSrc_filename, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags)
+ {
+ jpgd::jpeg_decoder_file_stream file_stream;
+ if (!file_stream.open(pSrc_filename))
+ return nullptr;
+ return decompress_jpeg_image_from_stream(&file_stream, width, height, actual_comps, req_comps, flags);
+ }
+
+} // namespace jpgd
diff --git a/thirdparty/jpeg-compressor/jpgd.h b/thirdparty/jpeg-compressor/jpgd.h
index 150b9a0b26..39136696ba 100644
--- a/thirdparty/jpeg-compressor/jpgd.h
+++ b/thirdparty/jpeg-compressor/jpgd.h
@@ -1,319 +1,351 @@
// jpgd.h - C++ class for JPEG decompression.
-// Public domain, Rich Geldreich <richgel99@gmail.com>
+// Richard Geldreich <richgel99@gmail.com>
+// See jpgd.cpp for license (Public Domain or Apache 2.0).
#ifndef JPEG_DECODER_H
#define JPEG_DECODER_H
#include <stdlib.h>
#include <stdio.h>
#include <setjmp.h>
+#include <assert.h>
+#include <stdint.h>
#ifdef _MSC_VER
- #define JPGD_NORETURN __declspec(noreturn)
+#define JPGD_NORETURN __declspec(noreturn)
#elif defined(__GNUC__)
- #define JPGD_NORETURN __attribute__ ((noreturn))
+#define JPGD_NORETURN __attribute__ ((noreturn))
#else
- #define JPGD_NORETURN
+#define JPGD_NORETURN
#endif
+#define JPGD_HUFF_TREE_MAX_LENGTH 512
+#define JPGD_HUFF_CODE_SIZE_MAX_LENGTH 256
+
namespace jpgd
{
- typedef unsigned char uint8;
- typedef signed short int16;
- typedef unsigned short uint16;
- typedef unsigned int uint;
- typedef signed int int32;
-
- // Loads a JPEG image from a memory buffer or a file.
- // req_comps can be 1 (grayscale), 3 (RGB), or 4 (RGBA).
- // On return, width/height will be set to the image's dimensions, and actual_comps will be set to the either 1 (grayscale) or 3 (RGB).
- // Notes: For more control over where and how the source data is read, see the decompress_jpeg_image_from_stream() function below, or call the jpeg_decoder class directly.
- // Requesting a 8 or 32bpp image is currently a little faster than 24bpp because the jpeg_decoder class itself currently always unpacks to either 8 or 32bpp.
- unsigned char *decompress_jpeg_image_from_memory(const unsigned char *pSrc_data, int src_data_size, int *width, int *height, int *actual_comps, int req_comps);
- unsigned char *decompress_jpeg_image_from_file(const char *pSrc_filename, int *width, int *height, int *actual_comps, int req_comps);
-
- // Success/failure error codes.
- enum jpgd_status
- {
- JPGD_SUCCESS = 0, JPGD_FAILED = -1, JPGD_DONE = 1,
- JPGD_BAD_DHT_COUNTS = -256, JPGD_BAD_DHT_INDEX, JPGD_BAD_DHT_MARKER, JPGD_BAD_DQT_MARKER, JPGD_BAD_DQT_TABLE,
- JPGD_BAD_PRECISION, JPGD_BAD_HEIGHT, JPGD_BAD_WIDTH, JPGD_TOO_MANY_COMPONENTS,
- JPGD_BAD_SOF_LENGTH, JPGD_BAD_VARIABLE_MARKER, JPGD_BAD_DRI_LENGTH, JPGD_BAD_SOS_LENGTH,
- JPGD_BAD_SOS_COMP_ID, JPGD_W_EXTRA_BYTES_BEFORE_MARKER, JPGD_NO_ARITHMITIC_SUPPORT, JPGD_UNEXPECTED_MARKER,
- JPGD_NOT_JPEG, JPGD_UNSUPPORTED_MARKER, JPGD_BAD_DQT_LENGTH, JPGD_TOO_MANY_BLOCKS,
- JPGD_UNDEFINED_QUANT_TABLE, JPGD_UNDEFINED_HUFF_TABLE, JPGD_NOT_SINGLE_SCAN, JPGD_UNSUPPORTED_COLORSPACE,
- JPGD_UNSUPPORTED_SAMP_FACTORS, JPGD_DECODE_ERROR, JPGD_BAD_RESTART_MARKER, JPGD_ASSERTION_ERROR,
- JPGD_BAD_SOS_SPECTRAL, JPGD_BAD_SOS_SUCCESSIVE, JPGD_STREAM_READ, JPGD_NOTENOUGHMEM
- };
-
- // Input stream interface.
- // Derive from this class to read input data from sources other than files or memory. Set m_eof_flag to true when no more data is available.
- // The decoder is rather greedy: it will keep on calling this method until its internal input buffer is full, or until the EOF flag is set.
- // It the input stream contains data after the JPEG stream's EOI (end of image) marker it will probably be pulled into the internal buffer.
- // Call the get_total_bytes_read() method to determine the actual size of the JPEG stream after successful decoding.
- class jpeg_decoder_stream
- {
- public:
- jpeg_decoder_stream() { }
- virtual ~jpeg_decoder_stream() { }
-
- // The read() method is called when the internal input buffer is empty.
- // Parameters:
- // pBuf - input buffer
- // max_bytes_to_read - maximum bytes that can be written to pBuf
- // pEOF_flag - set this to true if at end of stream (no more bytes remaining)
- // Returns -1 on error, otherwise return the number of bytes actually written to the buffer (which may be 0).
- // Notes: This method will be called in a loop until you set *pEOF_flag to true or the internal buffer is full.
- virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag) = 0;
- };
-
- // stdio FILE stream class.
- class jpeg_decoder_file_stream : public jpeg_decoder_stream
- {
- jpeg_decoder_file_stream(const jpeg_decoder_file_stream &);
- jpeg_decoder_file_stream &operator =(const jpeg_decoder_file_stream &);
-
- FILE *m_pFile;
- bool m_eof_flag, m_error_flag;
-
- public:
- jpeg_decoder_file_stream();
- virtual ~jpeg_decoder_file_stream();
-
- bool open(const char *Pfilename);
- void close();
-
- virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag);
- };
-
- // Memory stream class.
- class jpeg_decoder_mem_stream : public jpeg_decoder_stream
- {
- const uint8 *m_pSrc_data;
- uint m_ofs, m_size;
-
- public:
- jpeg_decoder_mem_stream() : m_pSrc_data(NULL), m_ofs(0), m_size(0) { }
- jpeg_decoder_mem_stream(const uint8 *pSrc_data, uint size) : m_pSrc_data(pSrc_data), m_ofs(0), m_size(size) { }
-
- virtual ~jpeg_decoder_mem_stream() { }
-
- bool open(const uint8 *pSrc_data, uint size);
- void close() { m_pSrc_data = NULL; m_ofs = 0; m_size = 0; }
-
- virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag);
- };
-
- // Loads JPEG file from a jpeg_decoder_stream.
- unsigned char *decompress_jpeg_image_from_stream(jpeg_decoder_stream *pStream, int *width, int *height, int *actual_comps, int req_comps);
-
- enum
- {
- JPGD_IN_BUF_SIZE = 8192, JPGD_MAX_BLOCKS_PER_MCU = 10, JPGD_MAX_HUFF_TABLES = 8, JPGD_MAX_QUANT_TABLES = 4,
- JPGD_MAX_COMPONENTS = 4, JPGD_MAX_COMPS_IN_SCAN = 4, JPGD_MAX_BLOCKS_PER_ROW = 8192, JPGD_MAX_HEIGHT = 16384, JPGD_MAX_WIDTH = 16384
- };
-
- typedef int16 jpgd_quant_t;
- typedef int16 jpgd_block_t;
-
- class jpeg_decoder
- {
- public:
- // Call get_error_code() after constructing to determine if the stream is valid or not. You may call the get_width(), get_height(), etc.
- // methods after the constructor is called. You may then either destruct the object, or begin decoding the image by calling begin_decoding(), then decode() on each scanline.
- jpeg_decoder(jpeg_decoder_stream *pStream);
-
- ~jpeg_decoder();
-
- // Call this method after constructing the object to begin decompression.
- // If JPGD_SUCCESS is returned you may then call decode() on each scanline.
- int begin_decoding();
-
- // Returns the next scan line.
- // For grayscale images, pScan_line will point to a buffer containing 8-bit pixels (get_bytes_per_pixel() will return 1).
- // Otherwise, it will always point to a buffer containing 32-bit RGBA pixels (A will always be 255, and get_bytes_per_pixel() will return 4).
- // Returns JPGD_SUCCESS if a scan line has been returned.
- // Returns JPGD_DONE if all scan lines have been returned.
- // Returns JPGD_FAILED if an error occurred. Call get_error_code() for a more info.
- int decode(const void** pScan_line, uint* pScan_line_len);
-
- inline jpgd_status get_error_code() const { return m_error_code; }
-
- inline int get_width() const { return m_image_x_size; }
- inline int get_height() const { return m_image_y_size; }
-
- inline int get_num_components() const { return m_comps_in_frame; }
-
- inline int get_bytes_per_pixel() const { return m_dest_bytes_per_pixel; }
- inline int get_bytes_per_scan_line() const { return m_image_x_size * get_bytes_per_pixel(); }
-
- // Returns the total number of bytes actually consumed by the decoder (which should equal the actual size of the JPEG file).
- inline int get_total_bytes_read() const { return m_total_bytes_read; }
-
- private:
- jpeg_decoder(const jpeg_decoder &);
- jpeg_decoder &operator =(const jpeg_decoder &);
-
- typedef void (*pDecode_block_func)(jpeg_decoder *, int, int, int);
-
- struct huff_tables
- {
- bool ac_table;
- uint look_up[256];
- uint look_up2[256];
- uint8 code_size[256];
- uint tree[512];
- };
-
- struct coeff_buf
- {
- uint8 *pData;
- int block_num_x, block_num_y;
- int block_len_x, block_len_y;
- int block_size;
- };
-
- struct mem_block
- {
- mem_block *m_pNext;
- size_t m_used_count;
- size_t m_size;
- char m_data[1];
- };
-
- jmp_buf m_jmp_state;
- mem_block *m_pMem_blocks;
- int m_image_x_size;
- int m_image_y_size;
- jpeg_decoder_stream *m_pStream;
- int m_progressive_flag;
- uint8 m_huff_ac[JPGD_MAX_HUFF_TABLES];
- uint8* m_huff_num[JPGD_MAX_HUFF_TABLES]; // pointer to number of Huffman codes per bit size
- uint8* m_huff_val[JPGD_MAX_HUFF_TABLES]; // pointer to Huffman codes per bit size
- jpgd_quant_t* m_quant[JPGD_MAX_QUANT_TABLES]; // pointer to quantization tables
- int m_scan_type; // Gray, Yh1v1, Yh1v2, Yh2v1, Yh2v2 (CMYK111, CMYK4114 no longer supported)
- int m_comps_in_frame; // # of components in frame
- int m_comp_h_samp[JPGD_MAX_COMPONENTS]; // component's horizontal sampling factor
- int m_comp_v_samp[JPGD_MAX_COMPONENTS]; // component's vertical sampling factor
- int m_comp_quant[JPGD_MAX_COMPONENTS]; // component's quantization table selector
- int m_comp_ident[JPGD_MAX_COMPONENTS]; // component's ID
- int m_comp_h_blocks[JPGD_MAX_COMPONENTS];
- int m_comp_v_blocks[JPGD_MAX_COMPONENTS];
- int m_comps_in_scan; // # of components in scan
- int m_comp_list[JPGD_MAX_COMPS_IN_SCAN]; // components in this scan
- int m_comp_dc_tab[JPGD_MAX_COMPONENTS]; // component's DC Huffman coding table selector
- int m_comp_ac_tab[JPGD_MAX_COMPONENTS]; // component's AC Huffman coding table selector
- int m_spectral_start; // spectral selection start
- int m_spectral_end; // spectral selection end
- int m_successive_low; // successive approximation low
- int m_successive_high; // successive approximation high
- int m_max_mcu_x_size; // MCU's max. X size in pixels
- int m_max_mcu_y_size; // MCU's max. Y size in pixels
- int m_blocks_per_mcu;
- int m_max_blocks_per_row;
- int m_mcus_per_row, m_mcus_per_col;
- int m_mcu_org[JPGD_MAX_BLOCKS_PER_MCU];
- int m_total_lines_left; // total # lines left in image
- int m_mcu_lines_left; // total # lines left in this MCU
- int m_real_dest_bytes_per_scan_line;
- int m_dest_bytes_per_scan_line; // rounded up
- int m_dest_bytes_per_pixel; // 4 (RGB) or 1 (Y)
- huff_tables* m_pHuff_tabs[JPGD_MAX_HUFF_TABLES];
- coeff_buf* m_dc_coeffs[JPGD_MAX_COMPONENTS];
- coeff_buf* m_ac_coeffs[JPGD_MAX_COMPONENTS];
- int m_eob_run;
- int m_block_y_mcu[JPGD_MAX_COMPONENTS];
- uint8* m_pIn_buf_ofs;
- int m_in_buf_left;
- int m_tem_flag;
- bool m_eof_flag;
- uint8 m_in_buf_pad_start[128];
- uint8 m_in_buf[JPGD_IN_BUF_SIZE + 128];
- uint8 m_in_buf_pad_end[128];
- int m_bits_left;
- uint m_bit_buf;
- int m_restart_interval;
- int m_restarts_left;
- int m_next_restart_num;
- int m_max_mcus_per_row;
- int m_max_blocks_per_mcu;
- int m_expanded_blocks_per_mcu;
- int m_expanded_blocks_per_row;
- int m_expanded_blocks_per_component;
- bool m_freq_domain_chroma_upsample;
- int m_max_mcus_per_col;
- uint m_last_dc_val[JPGD_MAX_COMPONENTS];
- jpgd_block_t* m_pMCU_coefficients;
- int m_mcu_block_max_zag[JPGD_MAX_BLOCKS_PER_MCU];
- uint8* m_pSample_buf;
- int m_crr[256];
- int m_cbb[256];
- int m_crg[256];
- int m_cbg[256];
- uint8* m_pScan_line_0;
- uint8* m_pScan_line_1;
- jpgd_status m_error_code;
- bool m_ready_flag;
- int m_total_bytes_read;
-
- void free_all_blocks();
- JPGD_NORETURN void stop_decoding(jpgd_status status);
- void *alloc(size_t n, bool zero = false);
- void word_clear(void *p, uint16 c, uint n);
- void prep_in_buffer();
- void read_dht_marker();
- void read_dqt_marker();
- void read_sof_marker();
- void skip_variable_marker();
- void read_dri_marker();
- void read_sos_marker();
- int next_marker();
- int process_markers();
- void locate_soi_marker();
- void locate_sof_marker();
- int locate_sos_marker();
- void init(jpeg_decoder_stream * pStream);
- void create_look_ups();
- void fix_in_buffer();
- void transform_mcu(int mcu_row);
- void transform_mcu_expand(int mcu_row);
- coeff_buf* coeff_buf_open(int block_num_x, int block_num_y, int block_len_x, int block_len_y);
- inline jpgd_block_t *coeff_buf_getp(coeff_buf *cb, int block_x, int block_y);
- void load_next_row();
- void decode_next_row();
- void make_huff_table(int index, huff_tables *pH);
- void check_quant_tables();
- void check_huff_tables();
- void calc_mcu_block_order();
- int init_scan();
- void init_frame();
- void process_restart();
- void decode_scan(pDecode_block_func decode_block_func);
- void init_progressive();
- void init_sequential();
- void decode_start();
- void decode_init(jpeg_decoder_stream * pStream);
- void H2V2Convert();
- void H2V1Convert();
- void H1V2Convert();
- void H1V1Convert();
- void gray_convert();
- void expanded_convert();
- void find_eoi();
- inline uint get_char();
- inline uint get_char(bool *pPadding_flag);
- inline void stuff_char(uint8 q);
- inline uint8 get_octet();
- inline uint get_bits(int num_bits);
- inline uint get_bits_no_markers(int numbits);
- inline int huff_decode(huff_tables *pH);
- inline int huff_decode(huff_tables *pH, int& extrabits);
- static inline uint8 clamp(int i);
- static void decode_block_dc_first(jpeg_decoder *pD, int component_id, int block_x, int block_y);
- static void decode_block_dc_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y);
- static void decode_block_ac_first(jpeg_decoder *pD, int component_id, int block_x, int block_y);
- static void decode_block_ac_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y);
- };
-
+ typedef unsigned char uint8;
+ typedef signed short int16;
+ typedef unsigned short uint16;
+ typedef unsigned int uint;
+ typedef signed int int32;
+
+ // Loads a JPEG image from a memory buffer or a file.
+ // req_comps can be 1 (grayscale), 3 (RGB), or 4 (RGBA).
+ // On return, width/height will be set to the image's dimensions, and actual_comps will be set to the either 1 (grayscale) or 3 (RGB).
+ // Notes: For more control over where and how the source data is read, see the decompress_jpeg_image_from_stream() function below, or call the jpeg_decoder class directly.
+ // Requesting a 8 or 32bpp image is currently a little faster than 24bpp because the jpeg_decoder class itself currently always unpacks to either 8 or 32bpp.
+ unsigned char* decompress_jpeg_image_from_memory(const unsigned char* pSrc_data, int src_data_size, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags = 0);
+ unsigned char* decompress_jpeg_image_from_file(const char* pSrc_filename, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags = 0);
+
+ // Success/failure error codes.
+ enum jpgd_status
+ {
+ JPGD_SUCCESS = 0, JPGD_FAILED = -1, JPGD_DONE = 1,
+ JPGD_BAD_DHT_COUNTS = -256, JPGD_BAD_DHT_INDEX, JPGD_BAD_DHT_MARKER, JPGD_BAD_DQT_MARKER, JPGD_BAD_DQT_TABLE,
+ JPGD_BAD_PRECISION, JPGD_BAD_HEIGHT, JPGD_BAD_WIDTH, JPGD_TOO_MANY_COMPONENTS,
+ JPGD_BAD_SOF_LENGTH, JPGD_BAD_VARIABLE_MARKER, JPGD_BAD_DRI_LENGTH, JPGD_BAD_SOS_LENGTH,
+ JPGD_BAD_SOS_COMP_ID, JPGD_W_EXTRA_BYTES_BEFORE_MARKER, JPGD_NO_ARITHMITIC_SUPPORT, JPGD_UNEXPECTED_MARKER,
+ JPGD_NOT_JPEG, JPGD_UNSUPPORTED_MARKER, JPGD_BAD_DQT_LENGTH, JPGD_TOO_MANY_BLOCKS,
+ JPGD_UNDEFINED_QUANT_TABLE, JPGD_UNDEFINED_HUFF_TABLE, JPGD_NOT_SINGLE_SCAN, JPGD_UNSUPPORTED_COLORSPACE,
+ JPGD_UNSUPPORTED_SAMP_FACTORS, JPGD_DECODE_ERROR, JPGD_BAD_RESTART_MARKER,
+ JPGD_BAD_SOS_SPECTRAL, JPGD_BAD_SOS_SUCCESSIVE, JPGD_STREAM_READ, JPGD_NOTENOUGHMEM, JPGD_TOO_MANY_SCANS
+ };
+
+ // Input stream interface.
+ // Derive from this class to read input data from sources other than files or memory. Set m_eof_flag to true when no more data is available.
+ // The decoder is rather greedy: it will keep on calling this method until its internal input buffer is full, or until the EOF flag is set.
+ // It the input stream contains data after the JPEG stream's EOI (end of image) marker it will probably be pulled into the internal buffer.
+ // Call the get_total_bytes_read() method to determine the actual size of the JPEG stream after successful decoding.
+ class jpeg_decoder_stream
+ {
+ public:
+ jpeg_decoder_stream() { }
+ virtual ~jpeg_decoder_stream() { }
+
+ // The read() method is called when the internal input buffer is empty.
+ // Parameters:
+ // pBuf - input buffer
+ // max_bytes_to_read - maximum bytes that can be written to pBuf
+ // pEOF_flag - set this to true if at end of stream (no more bytes remaining)
+ // Returns -1 on error, otherwise return the number of bytes actually written to the buffer (which may be 0).
+ // Notes: This method will be called in a loop until you set *pEOF_flag to true or the internal buffer is full.
+ virtual int read(uint8* pBuf, int max_bytes_to_read, bool* pEOF_flag) = 0;
+ };
+
+ // stdio FILE stream class.
+ class jpeg_decoder_file_stream : public jpeg_decoder_stream
+ {
+ jpeg_decoder_file_stream(const jpeg_decoder_file_stream&);
+ jpeg_decoder_file_stream& operator =(const jpeg_decoder_file_stream&);
+
+ FILE* m_pFile;
+ bool m_eof_flag, m_error_flag;
+
+ public:
+ jpeg_decoder_file_stream();
+ virtual ~jpeg_decoder_file_stream();
+
+ bool open(const char* Pfilename);
+ void close();
+
+ virtual int read(uint8* pBuf, int max_bytes_to_read, bool* pEOF_flag);
+ };
+
+ // Memory stream class.
+ class jpeg_decoder_mem_stream : public jpeg_decoder_stream
+ {
+ const uint8* m_pSrc_data;
+ uint m_ofs, m_size;
+
+ public:
+ jpeg_decoder_mem_stream() : m_pSrc_data(NULL), m_ofs(0), m_size(0) { }
+ jpeg_decoder_mem_stream(const uint8* pSrc_data, uint size) : m_pSrc_data(pSrc_data), m_ofs(0), m_size(size) { }
+
+ virtual ~jpeg_decoder_mem_stream() { }
+
+ bool open(const uint8* pSrc_data, uint size);
+ void close() { m_pSrc_data = NULL; m_ofs = 0; m_size = 0; }
+
+ virtual int read(uint8* pBuf, int max_bytes_to_read, bool* pEOF_flag);
+ };
+
+ // Loads JPEG file from a jpeg_decoder_stream.
+ unsigned char* decompress_jpeg_image_from_stream(jpeg_decoder_stream* pStream, int* width, int* height, int* actual_comps, int req_comps, uint32_t flags = 0);
+
+ enum
+ {
+ JPGD_IN_BUF_SIZE = 8192, JPGD_MAX_BLOCKS_PER_MCU = 10, JPGD_MAX_HUFF_TABLES = 8, JPGD_MAX_QUANT_TABLES = 4,
+ JPGD_MAX_COMPONENTS = 4, JPGD_MAX_COMPS_IN_SCAN = 4, JPGD_MAX_BLOCKS_PER_ROW = 16384, JPGD_MAX_HEIGHT = 32768, JPGD_MAX_WIDTH = 32768
+ };
+
+ typedef int16 jpgd_quant_t;
+ typedef int16 jpgd_block_coeff_t;
+
+ class jpeg_decoder
+ {
+ public:
+ enum
+ {
+ cFlagBoxChromaFiltering = 1,
+ cFlagDisableSIMD = 2
+ };
+
+ // Call get_error_code() after constructing to determine if the stream is valid or not. You may call the get_width(), get_height(), etc.
+ // methods after the constructor is called. You may then either destruct the object, or begin decoding the image by calling begin_decoding(), then decode() on each scanline.
+ jpeg_decoder(jpeg_decoder_stream* pStream, uint32_t flags = 0);
+
+ ~jpeg_decoder();
+
+ // Call this method after constructing the object to begin decompression.
+ // If JPGD_SUCCESS is returned you may then call decode() on each scanline.
+
+ int begin_decoding();
+
+ // Returns the next scan line.
+ // For grayscale images, pScan_line will point to a buffer containing 8-bit pixels (get_bytes_per_pixel() will return 1).
+ // Otherwise, it will always point to a buffer containing 32-bit RGBA pixels (A will always be 255, and get_bytes_per_pixel() will return 4).
+ // Returns JPGD_SUCCESS if a scan line has been returned.
+ // Returns JPGD_DONE if all scan lines have been returned.
+ // Returns JPGD_FAILED if an error occurred. Call get_error_code() for a more info.
+ int decode(const void** pScan_line, uint* pScan_line_len);
+
+ inline jpgd_status get_error_code() const { return m_error_code; }
+
+ inline int get_width() const { return m_image_x_size; }
+ inline int get_height() const { return m_image_y_size; }
+
+ inline int get_num_components() const { return m_comps_in_frame; }
+
+ inline int get_bytes_per_pixel() const { return m_dest_bytes_per_pixel; }
+ inline int get_bytes_per_scan_line() const { return m_image_x_size * get_bytes_per_pixel(); }
+
+ // Returns the total number of bytes actually consumed by the decoder (which should equal the actual size of the JPEG file).
+ inline int get_total_bytes_read() const { return m_total_bytes_read; }
+
+ private:
+ jpeg_decoder(const jpeg_decoder&);
+ jpeg_decoder& operator =(const jpeg_decoder&);
+
+ typedef void (*pDecode_block_func)(jpeg_decoder*, int, int, int);
+
+ struct huff_tables
+ {
+ bool ac_table;
+ uint look_up[256];
+ uint look_up2[256];
+ uint8 code_size[JPGD_HUFF_CODE_SIZE_MAX_LENGTH];
+ uint tree[JPGD_HUFF_TREE_MAX_LENGTH];
+ };
+
+ struct coeff_buf
+ {
+ uint8* pData;
+ int block_num_x, block_num_y;
+ int block_len_x, block_len_y;
+ int block_size;
+ };
+
+ struct mem_block
+ {
+ mem_block* m_pNext;
+ size_t m_used_count;
+ size_t m_size;
+ char m_data[1];
+ };
+
+ jmp_buf m_jmp_state;
+ uint32_t m_flags;
+ mem_block* m_pMem_blocks;
+ int m_image_x_size;
+ int m_image_y_size;
+ jpeg_decoder_stream* m_pStream;
+
+ int m_progressive_flag;
+
+ uint8 m_huff_ac[JPGD_MAX_HUFF_TABLES];
+ uint8* m_huff_num[JPGD_MAX_HUFF_TABLES]; // pointer to number of Huffman codes per bit size
+ uint8* m_huff_val[JPGD_MAX_HUFF_TABLES]; // pointer to Huffman codes per bit size
+ jpgd_quant_t* m_quant[JPGD_MAX_QUANT_TABLES]; // pointer to quantization tables
+ int m_scan_type; // Gray, Yh1v1, Yh1v2, Yh2v1, Yh2v2 (CMYK111, CMYK4114 no longer supported)
+ int m_comps_in_frame; // # of components in frame
+ int m_comp_h_samp[JPGD_MAX_COMPONENTS]; // component's horizontal sampling factor
+ int m_comp_v_samp[JPGD_MAX_COMPONENTS]; // component's vertical sampling factor
+ int m_comp_quant[JPGD_MAX_COMPONENTS]; // component's quantization table selector
+ int m_comp_ident[JPGD_MAX_COMPONENTS]; // component's ID
+ int m_comp_h_blocks[JPGD_MAX_COMPONENTS];
+ int m_comp_v_blocks[JPGD_MAX_COMPONENTS];
+ int m_comps_in_scan; // # of components in scan
+ int m_comp_list[JPGD_MAX_COMPS_IN_SCAN]; // components in this scan
+ int m_comp_dc_tab[JPGD_MAX_COMPONENTS]; // component's DC Huffman coding table selector
+ int m_comp_ac_tab[JPGD_MAX_COMPONENTS]; // component's AC Huffman coding table selector
+ int m_spectral_start; // spectral selection start
+ int m_spectral_end; // spectral selection end
+ int m_successive_low; // successive approximation low
+ int m_successive_high; // successive approximation high
+ int m_max_mcu_x_size; // MCU's max. X size in pixels
+ int m_max_mcu_y_size; // MCU's max. Y size in pixels
+ int m_blocks_per_mcu;
+ int m_max_blocks_per_row;
+ int m_mcus_per_row, m_mcus_per_col;
+ int m_mcu_org[JPGD_MAX_BLOCKS_PER_MCU];
+ int m_total_lines_left; // total # lines left in image
+ int m_mcu_lines_left; // total # lines left in this MCU
+ int m_num_buffered_scanlines;
+ int m_real_dest_bytes_per_scan_line;
+ int m_dest_bytes_per_scan_line; // rounded up
+ int m_dest_bytes_per_pixel; // 4 (RGB) or 1 (Y)
+ huff_tables* m_pHuff_tabs[JPGD_MAX_HUFF_TABLES];
+ coeff_buf* m_dc_coeffs[JPGD_MAX_COMPONENTS];
+ coeff_buf* m_ac_coeffs[JPGD_MAX_COMPONENTS];
+ int m_eob_run;
+ int m_block_y_mcu[JPGD_MAX_COMPONENTS];
+ uint8* m_pIn_buf_ofs;
+ int m_in_buf_left;
+ int m_tem_flag;
+
+ uint8 m_in_buf_pad_start[64];
+ uint8 m_in_buf[JPGD_IN_BUF_SIZE + 128];
+ uint8 m_in_buf_pad_end[64];
+
+ int m_bits_left;
+ uint m_bit_buf;
+ int m_restart_interval;
+ int m_restarts_left;
+ int m_next_restart_num;
+ int m_max_mcus_per_row;
+ int m_max_blocks_per_mcu;
+
+ int m_max_mcus_per_col;
+ uint m_last_dc_val[JPGD_MAX_COMPONENTS];
+ jpgd_block_coeff_t* m_pMCU_coefficients;
+ int m_mcu_block_max_zag[JPGD_MAX_BLOCKS_PER_MCU];
+ uint8* m_pSample_buf;
+ uint8* m_pSample_buf_prev;
+ int m_crr[256];
+ int m_cbb[256];
+ int m_crg[256];
+ int m_cbg[256];
+ uint8* m_pScan_line_0;
+ uint8* m_pScan_line_1;
+ jpgd_status m_error_code;
+ int m_total_bytes_read;
+
+ bool m_ready_flag;
+ bool m_eof_flag;
+ bool m_sample_buf_prev_valid;
+ bool m_has_sse2;
+
+ inline int check_sample_buf_ofs(int ofs) const { assert(ofs >= 0); assert(ofs < m_max_blocks_per_row * 64); return ofs; }
+ void free_all_blocks();
+ JPGD_NORETURN void stop_decoding(jpgd_status status);
+ void* alloc(size_t n, bool zero = false);
+ void* alloc_aligned(size_t nSize, uint32_t align = 16, bool zero = false);
+ void word_clear(void* p, uint16 c, uint n);
+ void prep_in_buffer();
+ void read_dht_marker();
+ void read_dqt_marker();
+ void read_sof_marker();
+ void skip_variable_marker();
+ void read_dri_marker();
+ void read_sos_marker();
+ int next_marker();
+ int process_markers();
+ void locate_soi_marker();
+ void locate_sof_marker();
+ int locate_sos_marker();
+ void init(jpeg_decoder_stream* pStream, uint32_t flags);
+ void create_look_ups();
+ void fix_in_buffer();
+ void transform_mcu(int mcu_row);
+ coeff_buf* coeff_buf_open(int block_num_x, int block_num_y, int block_len_x, int block_len_y);
+ inline jpgd_block_coeff_t* coeff_buf_getp(coeff_buf* cb, int block_x, int block_y);
+ void load_next_row();
+ void decode_next_row();
+ void make_huff_table(int index, huff_tables* pH);
+ void check_quant_tables();
+ void check_huff_tables();
+ bool calc_mcu_block_order();
+ int init_scan();
+ void init_frame();
+ void process_restart();
+ void decode_scan(pDecode_block_func decode_block_func);
+ void init_progressive();
+ void init_sequential();
+ void decode_start();
+ void decode_init(jpeg_decoder_stream* pStream, uint32_t flags);
+ void H2V2Convert();
+ uint32_t H2V2ConvertFiltered();
+ void H2V1Convert();
+ void H2V1ConvertFiltered();
+ void H1V2Convert();
+ void H1V2ConvertFiltered();
+ void H1V1Convert();
+ void gray_convert();
+ void find_eoi();
+ inline uint get_char();
+ inline uint get_char(bool* pPadding_flag);
+ inline void stuff_char(uint8 q);
+ inline uint8 get_octet();
+ inline uint get_bits(int num_bits);
+ inline uint get_bits_no_markers(int numbits);
+ inline int huff_decode(huff_tables* pH);
+ inline int huff_decode(huff_tables* pH, int& extrabits);
+
+ // Clamps a value between 0-255.
+ static inline uint8 clamp(int i)
+ {
+ if (static_cast<uint>(i) > 255)
+ i = (((~i) >> 31) & 0xFF);
+ return static_cast<uint8>(i);
+ }
+ int decode_next_mcu_row();
+
+ static void decode_block_dc_first(jpeg_decoder* pD, int component_id, int block_x, int block_y);
+ static void decode_block_dc_refine(jpeg_decoder* pD, int component_id, int block_x, int block_y);
+ static void decode_block_ac_first(jpeg_decoder* pD, int component_id, int block_x, int block_y);
+ static void decode_block_ac_refine(jpeg_decoder* pD, int component_id, int block_x, int block_y);
+ };
+
} // namespace jpgd
#endif // JPEG_DECODER_H
diff --git a/thirdparty/jpeg-compressor/jpgd_idct.h b/thirdparty/jpeg-compressor/jpgd_idct.h
new file mode 100644
index 0000000000..876425a959
--- /dev/null
+++ b/thirdparty/jpeg-compressor/jpgd_idct.h
@@ -0,0 +1,462 @@
+// Copyright 2009 Intel Corporation
+// All Rights Reserved
+//
+// Permission is granted to use, copy, distribute and prepare derivative works of this
+// software for any purpose and without fee, provided, that the above copyright notice
+// and this statement appear in all copies. Intel makes no representations about the
+// suitability of this software for any purpose. THIS SOFTWARE IS PROVIDED "AS IS."
+// INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, AND ALL LIABILITY,
+// INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES, FOR THE USE OF THIS SOFTWARE,
+// INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, AND INCLUDING THE
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Intel does not
+// assume any responsibility for any errors which may appear in this software nor any
+// responsibility to update it.
+//
+// From:
+// https://software.intel.com/sites/default/files/m/d/4/1/d/8/UsingIntelAVXToImplementIDCT-r1_5.pdf
+// https://software.intel.com/file/29048
+//
+// Requires SSE
+//
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+#include <immintrin.h>
+
+#ifdef _MSC_VER
+ #define JPGD_SIMD_ALIGN(type, name) __declspec(align(16)) type name
+#else
+ #define JPGD_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
+#endif
+
+#define BITS_INV_ACC 4
+#define SHIFT_INV_ROW 16 - BITS_INV_ACC
+#define SHIFT_INV_COL 1 + BITS_INV_ACC
+const short IRND_INV_ROW = 1024 * (6 - BITS_INV_ACC); //1 << (SHIFT_INV_ROW-1)
+const short IRND_INV_COL = 16 * (BITS_INV_ACC - 3); // 1 << (SHIFT_INV_COL-1)
+const short IRND_INV_CORR = IRND_INV_COL - 1; // correction -1.0 and round
+
+JPGD_SIMD_ALIGN(short, shortM128_one_corr[8]) = {1, 1, 1, 1, 1, 1, 1, 1};
+JPGD_SIMD_ALIGN(short, shortM128_round_inv_row[8]) = {IRND_INV_ROW, 0, IRND_INV_ROW, 0, IRND_INV_ROW, 0, IRND_INV_ROW, 0};
+JPGD_SIMD_ALIGN(short, shortM128_round_inv_col[8]) = {IRND_INV_COL, IRND_INV_COL, IRND_INV_COL, IRND_INV_COL, IRND_INV_COL, IRND_INV_COL, IRND_INV_COL, IRND_INV_COL};
+JPGD_SIMD_ALIGN(short, shortM128_round_inv_corr[8])= {IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR, IRND_INV_CORR};
+JPGD_SIMD_ALIGN(short, shortM128_tg_1_16[8]) = {13036, 13036, 13036, 13036, 13036, 13036, 13036, 13036}; // tg * (2<<16) + 0.5
+JPGD_SIMD_ALIGN(short, shortM128_tg_2_16[8]) = {27146, 27146, 27146, 27146, 27146, 27146, 27146, 27146}; // tg * (2<<16) + 0.5
+JPGD_SIMD_ALIGN(short, shortM128_tg_3_16[8]) = {-21746, -21746, -21746, -21746, -21746, -21746, -21746, -21746}; // tg * (2<<16) + 0.5
+JPGD_SIMD_ALIGN(short, shortM128_cos_4_16[8]) = {-19195, -19195, -19195, -19195, -19195, -19195, -19195, -19195};// cos * (2<<16) + 0.5
+
+//-----------------------------------------------------------------------------
+// Table for rows 0,4 - constants are multiplied on cos_4_16
+// w15 w14 w11 w10 w07 w06 w03 w02
+// w29 w28 w25 w24 w21 w20 w17 w16
+// w31 w30 w27 w26 w23 w22 w19 w18
+//movq -> w05 w04 w01 w00
+JPGD_SIMD_ALIGN(short, shortM128_tab_i_04[]) = {
+ 16384, 21407, 16384, 8867,
+ 16384, -8867, 16384, -21407, // w13 w12 w09 w08
+ 16384, 8867, -16384, -21407, // w07 w06 w03 w02
+ -16384, 21407, 16384, -8867, // w15 w14 w11 w10
+ 22725, 19266, 19266, -4520, // w21 w20 w17 w16
+ 12873, -22725, 4520, -12873, // w29 w28 w25 w24
+ 12873, 4520, -22725, -12873, // w23 w22 w19 w18
+ 4520, 19266, 19266, -22725}; // w31 w30 w27 w26
+
+ // Table for rows 1,7 - constants are multiplied on cos_1_16
+//movq -> w05 w04 w01 w00
+JPGD_SIMD_ALIGN(short, shortM128_tab_i_17[]) = {
+ 22725, 29692, 22725, 12299,
+ 22725, -12299, 22725, -29692, // w13 w12 w09 w08
+ 22725, 12299, -22725, -29692, // w07 w06 w03 w02
+ -22725, 29692, 22725, -12299, // w15 w14 w11 w10
+ 31521, 26722, 26722, -6270, // w21 w20 w17 w16
+ 17855, -31521, 6270, -17855, // w29 w28 w25 w24
+ 17855, 6270, -31521, -17855, // w23 w22 w19 w18
+ 6270, 26722, 26722, -31521}; // w31 w30 w27 w26
+
+// Table for rows 2,6 - constants are multiplied on cos_2_16
+//movq -> w05 w04 w01 w00
+JPGD_SIMD_ALIGN(short, shortM128_tab_i_26[]) = {
+ 21407, 27969, 21407, 11585,
+ 21407, -11585, 21407, -27969, // w13 w12 w09 w08
+ 21407, 11585, -21407, -27969, // w07 w06 w03 w02
+ -21407, 27969, 21407, -11585, // w15 w14 w11 w10
+ 29692, 25172, 25172, -5906, // w21 w20 w17 w16
+ 16819, -29692, 5906, -16819, // w29 w28 w25 w24
+ 16819, 5906, -29692, -16819, // w23 w22 w19 w18
+ 5906, 25172, 25172, -29692}; // w31 w30 w27 w26
+// Table for rows 3,5 - constants are multiplied on cos_3_16
+//movq -> w05 w04 w01 w00
+JPGD_SIMD_ALIGN(short, shortM128_tab_i_35[]) = {
+ 19266, 25172, 19266, 10426,
+ 19266, -10426, 19266, -25172, // w13 w12 w09 w08
+ 19266, 10426, -19266, -25172, // w07 w06 w03 w02
+ -19266, 25172, 19266, -10426, // w15 w14 w11 w10
+ 26722, 22654, 22654, -5315, // w21 w20 w17 w16
+ 15137, -26722, 5315, -15137, // w29 w28 w25 w24
+ 15137, 5315, -26722, -15137, // w23 w22 w19 w18
+ 5315, 22654, 22654, -26722}; // w31 w30 w27 w26
+
+JPGD_SIMD_ALIGN(short, shortM128_128[8]) = { 128, 128, 128, 128, 128, 128, 128, 128 };
+
+void idctSSEShortU8(const short *pInput, uint8_t * pOutputUB)
+{
+ __m128i r_xmm0, r_xmm4;
+ __m128i r_xmm1, r_xmm2, r_xmm3, r_xmm5, r_xmm6, r_xmm7;
+ __m128i row0, row1, row2, row3, row4, row5, row6, row7;
+ short * pTab_i_04 = shortM128_tab_i_04;
+ short * pTab_i_26 = shortM128_tab_i_26;
+
+ //Get pointers for this input and output
+ pTab_i_04 = shortM128_tab_i_04;
+ pTab_i_26 = shortM128_tab_i_26;
+
+ //Row 1 and Row 3
+ r_xmm0 = _mm_load_si128((__m128i *) pInput);
+ r_xmm4 = _mm_load_si128((__m128i *) (&pInput[2*8]));
+
+ // *** Work on the data in xmm0
+ //low shuffle mask = 0xd8 = 11 01 10 00
+ //get short 2 and short 0 into ls 32-bits
+ r_xmm0 = _mm_shufflelo_epi16(r_xmm0, 0xd8);
+
+ // copy short 2 and short 0 to all locations
+ r_xmm1 = _mm_shuffle_epi32(r_xmm0, 0);
+
+ // add to those copies
+ r_xmm1 = _mm_madd_epi16(r_xmm1, *((__m128i *) pTab_i_04));
+
+ // shuffle mask = 0x55 = 01 01 01 01
+ // copy short 3 and short 1 to all locations
+ r_xmm3 = _mm_shuffle_epi32(r_xmm0, 0x55);
+
+ // high shuffle mask = 0xd8 = 11 01 10 00
+ // get short 6 and short 4 into bit positions 64-95
+ // get short 7 and short 5 into bit positions 96-127
+ r_xmm0 = _mm_shufflehi_epi16(r_xmm0, 0xd8);
+
+ // add to short 3 and short 1
+ r_xmm3 = _mm_madd_epi16(r_xmm3, *((__m128i *) &pTab_i_04[16]));
+
+ // shuffle mask = 0xaa = 10 10 10 10
+ // copy short 6 and short 4 to all locations
+ r_xmm2 = _mm_shuffle_epi32(r_xmm0, 0xaa);
+
+ // shuffle mask = 0xaa = 11 11 11 11
+ // copy short 7 and short 5 to all locations
+ r_xmm0 = _mm_shuffle_epi32(r_xmm0, 0xff);
+
+ // add to short 6 and short 4
+ r_xmm2 = _mm_madd_epi16(r_xmm2, *((__m128i *) &pTab_i_04[8]));
+
+ // *** Work on the data in xmm4
+ // high shuffle mask = 0xd8 11 01 10 00
+ // get short 6 and short 4 into bit positions 64-95
+ // get short 7 and short 5 into bit positions 96-127
+ r_xmm4 = _mm_shufflehi_epi16(r_xmm4, 0xd8);
+
+ // (xmm0 short 2 and short 0 plus pSi) + some constants
+ r_xmm1 = _mm_add_epi32(r_xmm1, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_shufflelo_epi16(r_xmm4, 0xd8);
+ r_xmm0 = _mm_madd_epi16(r_xmm0, *((__m128i *) &pTab_i_04[24]));
+ r_xmm5 = _mm_shuffle_epi32(r_xmm4, 0);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm4, 0xaa);
+ r_xmm5 = _mm_madd_epi16(r_xmm5, *((__m128i *) &shortM128_tab_i_26[0]));
+ r_xmm1 = _mm_add_epi32(r_xmm1, r_xmm2);
+ r_xmm2 = r_xmm1;
+ r_xmm7 = _mm_shuffle_epi32(r_xmm4, 0x55);
+ r_xmm6 = _mm_madd_epi16(r_xmm6, *((__m128i *) &shortM128_tab_i_26[8]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm3);
+ r_xmm4 = _mm_shuffle_epi32(r_xmm4, 0xff);
+ r_xmm2 = _mm_sub_epi32(r_xmm2, r_xmm0);
+ r_xmm7 = _mm_madd_epi16(r_xmm7, *((__m128i *) &shortM128_tab_i_26[16]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm1);
+ r_xmm2 = _mm_srai_epi32(r_xmm2, 12);
+ r_xmm5 = _mm_add_epi32(r_xmm5, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_madd_epi16(r_xmm4, *((__m128i *) &shortM128_tab_i_26[24]));
+ r_xmm5 = _mm_add_epi32(r_xmm5, r_xmm6);
+ r_xmm6 = r_xmm5;
+ r_xmm0 = _mm_srai_epi32(r_xmm0, 12);
+ r_xmm2 = _mm_shuffle_epi32(r_xmm2, 0x1b);
+ row0 = _mm_packs_epi32(r_xmm0, r_xmm2);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm7);
+ r_xmm6 = _mm_sub_epi32(r_xmm6, r_xmm4);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm5);
+ r_xmm6 = _mm_srai_epi32(r_xmm6, 12);
+ r_xmm4 = _mm_srai_epi32(r_xmm4, 12);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm6, 0x1b);
+ row2 = _mm_packs_epi32(r_xmm4, r_xmm6);
+
+ //Row 5 and row 7
+ r_xmm0 = _mm_load_si128((__m128i *) (&pInput[4*8]));
+ r_xmm4 = _mm_load_si128((__m128i *) (&pInput[6*8]));
+
+ r_xmm0 = _mm_shufflelo_epi16(r_xmm0, 0xd8);
+ r_xmm1 = _mm_shuffle_epi32(r_xmm0, 0);
+ r_xmm1 = _mm_madd_epi16(r_xmm1, *((__m128i *) pTab_i_04));
+ r_xmm3 = _mm_shuffle_epi32(r_xmm0, 0x55);
+ r_xmm0 = _mm_shufflehi_epi16(r_xmm0, 0xd8);
+ r_xmm3 = _mm_madd_epi16(r_xmm3, *((__m128i *) &pTab_i_04[16]));
+ r_xmm2 = _mm_shuffle_epi32(r_xmm0, 0xaa);
+ r_xmm0 = _mm_shuffle_epi32(r_xmm0, 0xff);
+ r_xmm2 = _mm_madd_epi16(r_xmm2, *((__m128i *) &pTab_i_04[8]));
+ r_xmm4 = _mm_shufflehi_epi16(r_xmm4, 0xd8);
+ r_xmm1 = _mm_add_epi32(r_xmm1, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_shufflelo_epi16(r_xmm4, 0xd8);
+ r_xmm0 = _mm_madd_epi16(r_xmm0, *((__m128i *) &pTab_i_04[24]));
+ r_xmm5 = _mm_shuffle_epi32(r_xmm4, 0);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm4, 0xaa);
+ r_xmm5 = _mm_madd_epi16(r_xmm5, *((__m128i *) &shortM128_tab_i_26[0]));
+ r_xmm1 = _mm_add_epi32(r_xmm1, r_xmm2);
+ r_xmm2 = r_xmm1;
+ r_xmm7 = _mm_shuffle_epi32(r_xmm4, 0x55);
+ r_xmm6 = _mm_madd_epi16(r_xmm6, *((__m128i *) &shortM128_tab_i_26[8]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm3);
+ r_xmm4 = _mm_shuffle_epi32(r_xmm4, 0xff);
+ r_xmm2 = _mm_sub_epi32(r_xmm2, r_xmm0);
+ r_xmm7 = _mm_madd_epi16(r_xmm7, *((__m128i *) &shortM128_tab_i_26[16]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm1);
+ r_xmm2 = _mm_srai_epi32(r_xmm2, 12);
+ r_xmm5 = _mm_add_epi32(r_xmm5, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_madd_epi16(r_xmm4, *((__m128i *) &shortM128_tab_i_26[24]));
+ r_xmm5 = _mm_add_epi32(r_xmm5, r_xmm6);
+ r_xmm6 = r_xmm5;
+ r_xmm0 = _mm_srai_epi32(r_xmm0, 12);
+ r_xmm2 = _mm_shuffle_epi32(r_xmm2, 0x1b);
+ row4 = _mm_packs_epi32(r_xmm0, r_xmm2);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm7);
+ r_xmm6 = _mm_sub_epi32(r_xmm6, r_xmm4);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm5);
+ r_xmm6 = _mm_srai_epi32(r_xmm6, 12);
+ r_xmm4 = _mm_srai_epi32(r_xmm4, 12);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm6, 0x1b);
+ row6 = _mm_packs_epi32(r_xmm4, r_xmm6);
+
+ //Row 4 and row 2
+ pTab_i_04 = shortM128_tab_i_35;
+ pTab_i_26 = shortM128_tab_i_17;
+ r_xmm0 = _mm_load_si128((__m128i *) (&pInput[3*8]));
+ r_xmm4 = _mm_load_si128((__m128i *) (&pInput[1*8]));
+
+ r_xmm0 = _mm_shufflelo_epi16(r_xmm0, 0xd8);
+ r_xmm1 = _mm_shuffle_epi32(r_xmm0, 0);
+ r_xmm1 = _mm_madd_epi16(r_xmm1, *((__m128i *) pTab_i_04));
+ r_xmm3 = _mm_shuffle_epi32(r_xmm0, 0x55);
+ r_xmm0 = _mm_shufflehi_epi16(r_xmm0, 0xd8);
+ r_xmm3 = _mm_madd_epi16(r_xmm3, *((__m128i *) &pTab_i_04[16]));
+ r_xmm2 = _mm_shuffle_epi32(r_xmm0, 0xaa);
+ r_xmm0 = _mm_shuffle_epi32(r_xmm0, 0xff);
+ r_xmm2 = _mm_madd_epi16(r_xmm2, *((__m128i *) &pTab_i_04[8]));
+ r_xmm4 = _mm_shufflehi_epi16(r_xmm4, 0xd8);
+ r_xmm1 = _mm_add_epi32(r_xmm1, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_shufflelo_epi16(r_xmm4, 0xd8);
+ r_xmm0 = _mm_madd_epi16(r_xmm0, *((__m128i *) &pTab_i_04[24]));
+ r_xmm5 = _mm_shuffle_epi32(r_xmm4, 0);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm4, 0xaa);
+ r_xmm5 = _mm_madd_epi16(r_xmm5, *((__m128i *) &pTab_i_26[0]));
+ r_xmm1 = _mm_add_epi32(r_xmm1, r_xmm2);
+ r_xmm2 = r_xmm1;
+ r_xmm7 = _mm_shuffle_epi32(r_xmm4, 0x55);
+ r_xmm6 = _mm_madd_epi16(r_xmm6, *((__m128i *) &pTab_i_26[8]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm3);
+ r_xmm4 = _mm_shuffle_epi32(r_xmm4, 0xff);
+ r_xmm2 = _mm_sub_epi32(r_xmm2, r_xmm0);
+ r_xmm7 = _mm_madd_epi16(r_xmm7, *((__m128i *) &pTab_i_26[16]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm1);
+ r_xmm2 = _mm_srai_epi32(r_xmm2, 12);
+ r_xmm5 = _mm_add_epi32(r_xmm5, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_madd_epi16(r_xmm4, *((__m128i *) &pTab_i_26[24]));
+ r_xmm5 = _mm_add_epi32(r_xmm5, r_xmm6);
+ r_xmm6 = r_xmm5;
+ r_xmm0 = _mm_srai_epi32(r_xmm0, 12);
+ r_xmm2 = _mm_shuffle_epi32(r_xmm2, 0x1b);
+ row3 = _mm_packs_epi32(r_xmm0, r_xmm2);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm7);
+ r_xmm6 = _mm_sub_epi32(r_xmm6, r_xmm4);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm5);
+ r_xmm6 = _mm_srai_epi32(r_xmm6, 12);
+ r_xmm4 = _mm_srai_epi32(r_xmm4, 12);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm6, 0x1b);
+ row1 = _mm_packs_epi32(r_xmm4, r_xmm6);
+
+ //Row 6 and row 8
+ r_xmm0 = _mm_load_si128((__m128i *) (&pInput[5*8]));
+ r_xmm4 = _mm_load_si128((__m128i *) (&pInput[7*8]));
+
+ r_xmm0 = _mm_shufflelo_epi16(r_xmm0, 0xd8);
+ r_xmm1 = _mm_shuffle_epi32(r_xmm0, 0);
+ r_xmm1 = _mm_madd_epi16(r_xmm1, *((__m128i *) pTab_i_04));
+ r_xmm3 = _mm_shuffle_epi32(r_xmm0, 0x55);
+ r_xmm0 = _mm_shufflehi_epi16(r_xmm0, 0xd8);
+ r_xmm3 = _mm_madd_epi16(r_xmm3, *((__m128i *) &pTab_i_04[16]));
+ r_xmm2 = _mm_shuffle_epi32(r_xmm0, 0xaa);
+ r_xmm0 = _mm_shuffle_epi32(r_xmm0, 0xff);
+ r_xmm2 = _mm_madd_epi16(r_xmm2, *((__m128i *) &pTab_i_04[8]));
+ r_xmm4 = _mm_shufflehi_epi16(r_xmm4, 0xd8);
+ r_xmm1 = _mm_add_epi32(r_xmm1, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_shufflelo_epi16(r_xmm4, 0xd8);
+ r_xmm0 = _mm_madd_epi16(r_xmm0, *((__m128i *) &pTab_i_04[24]));
+ r_xmm5 = _mm_shuffle_epi32(r_xmm4, 0);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm4, 0xaa);
+ r_xmm5 = _mm_madd_epi16(r_xmm5, *((__m128i *) &pTab_i_26[0]));
+ r_xmm1 = _mm_add_epi32(r_xmm1, r_xmm2);
+ r_xmm2 = r_xmm1;
+ r_xmm7 = _mm_shuffle_epi32(r_xmm4, 0x55);
+ r_xmm6 = _mm_madd_epi16(r_xmm6, *((__m128i *) &pTab_i_26[8]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm3);
+ r_xmm4 = _mm_shuffle_epi32(r_xmm4, 0xff);
+ r_xmm2 = _mm_sub_epi32(r_xmm2, r_xmm0);
+ r_xmm7 = _mm_madd_epi16(r_xmm7, *((__m128i *) &pTab_i_26[16]));
+ r_xmm0 = _mm_add_epi32(r_xmm0, r_xmm1);
+ r_xmm2 = _mm_srai_epi32(r_xmm2, 12);
+ r_xmm5 = _mm_add_epi32(r_xmm5, *((__m128i *) shortM128_round_inv_row));
+ r_xmm4 = _mm_madd_epi16(r_xmm4, *((__m128i *) &pTab_i_26[24]));
+ r_xmm5 = _mm_add_epi32(r_xmm5, r_xmm6);
+ r_xmm6 = r_xmm5;
+ r_xmm0 = _mm_srai_epi32(r_xmm0, 12);
+ r_xmm2 = _mm_shuffle_epi32(r_xmm2, 0x1b);
+ row5 = _mm_packs_epi32(r_xmm0, r_xmm2);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm7);
+ r_xmm6 = _mm_sub_epi32(r_xmm6, r_xmm4);
+ r_xmm4 = _mm_add_epi32(r_xmm4, r_xmm5);
+ r_xmm6 = _mm_srai_epi32(r_xmm6, 12);
+ r_xmm4 = _mm_srai_epi32(r_xmm4, 12);
+ r_xmm6 = _mm_shuffle_epi32(r_xmm6, 0x1b);
+ row7 = _mm_packs_epi32(r_xmm4, r_xmm6);
+
+ r_xmm1 = _mm_load_si128((__m128i *) shortM128_tg_3_16);
+ r_xmm2 = row5;
+ r_xmm3 = row3;
+ r_xmm0 = _mm_mulhi_epi16(row5, r_xmm1);
+
+ r_xmm1 = _mm_mulhi_epi16(r_xmm1, r_xmm3);
+ r_xmm5 = _mm_load_si128((__m128i *) shortM128_tg_1_16);
+ r_xmm6 = row7;
+ r_xmm4 = _mm_mulhi_epi16(row7, r_xmm5);
+
+ r_xmm0 = _mm_adds_epi16(r_xmm0, r_xmm2);
+ r_xmm5 = _mm_mulhi_epi16(r_xmm5, row1);
+ r_xmm1 = _mm_adds_epi16(r_xmm1, r_xmm3);
+ r_xmm7 = row6;
+
+ r_xmm0 = _mm_adds_epi16(r_xmm0, r_xmm3);
+ r_xmm3 = _mm_load_si128((__m128i *) shortM128_tg_2_16);
+ r_xmm2 = _mm_subs_epi16(r_xmm2, r_xmm1);
+ r_xmm7 = _mm_mulhi_epi16(r_xmm7, r_xmm3);
+ r_xmm1 = r_xmm0;
+ r_xmm3 = _mm_mulhi_epi16(r_xmm3, row2);
+ r_xmm5 = _mm_subs_epi16(r_xmm5, r_xmm6);
+ r_xmm4 = _mm_adds_epi16(r_xmm4, row1);
+ r_xmm0 = _mm_adds_epi16(r_xmm0, r_xmm4);
+ r_xmm0 = _mm_adds_epi16(r_xmm0, *((__m128i *) shortM128_one_corr));
+ r_xmm4 = _mm_subs_epi16(r_xmm4, r_xmm1);
+ r_xmm6 = r_xmm5;
+ r_xmm5 = _mm_subs_epi16(r_xmm5, r_xmm2);
+ r_xmm5 = _mm_adds_epi16(r_xmm5, *((__m128i *) shortM128_one_corr));
+ r_xmm6 = _mm_adds_epi16(r_xmm6, r_xmm2);
+
+ //Intermediate results, needed later
+ __m128i temp3, temp7;
+ temp7 = r_xmm0;
+
+ r_xmm1 = r_xmm4;
+ r_xmm0 = _mm_load_si128((__m128i *) shortM128_cos_4_16);
+ r_xmm4 = _mm_adds_epi16(r_xmm4, r_xmm5);
+ r_xmm2 = _mm_load_si128((__m128i *) shortM128_cos_4_16);
+ r_xmm2 = _mm_mulhi_epi16(r_xmm2, r_xmm4);
+
+ //Intermediate results, needed later
+ temp3 = r_xmm6;
+
+ r_xmm1 = _mm_subs_epi16(r_xmm1, r_xmm5);
+ r_xmm7 = _mm_adds_epi16(r_xmm7, row2);
+ r_xmm3 = _mm_subs_epi16(r_xmm3, row6);
+ r_xmm6 = row0;
+ r_xmm0 = _mm_mulhi_epi16(r_xmm0, r_xmm1);
+ r_xmm5 = row4;
+ r_xmm5 = _mm_adds_epi16(r_xmm5, r_xmm6);
+ r_xmm6 = _mm_subs_epi16(r_xmm6, row4);
+ r_xmm4 = _mm_adds_epi16(r_xmm4, r_xmm2);
+
+ r_xmm4 = _mm_or_si128(r_xmm4, *((__m128i *) shortM128_one_corr));
+ r_xmm0 = _mm_adds_epi16(r_xmm0, r_xmm1);
+ r_xmm0 = _mm_or_si128(r_xmm0, *((__m128i *) shortM128_one_corr));
+
+ r_xmm2 = r_xmm5;
+ r_xmm5 = _mm_adds_epi16(r_xmm5, r_xmm7);
+ r_xmm1 = r_xmm6;
+ r_xmm5 = _mm_adds_epi16(r_xmm5, *((__m128i *) shortM128_round_inv_col));
+ r_xmm2 = _mm_subs_epi16(r_xmm2, r_xmm7);
+ r_xmm7 = temp7;
+ r_xmm6 = _mm_adds_epi16(r_xmm6, r_xmm3);
+ r_xmm6 = _mm_adds_epi16(r_xmm6, *((__m128i *) shortM128_round_inv_col));
+ r_xmm7 = _mm_adds_epi16(r_xmm7, r_xmm5);
+ r_xmm7 = _mm_srai_epi16(r_xmm7, SHIFT_INV_COL);
+ r_xmm1 = _mm_subs_epi16(r_xmm1, r_xmm3);
+ r_xmm1 = _mm_adds_epi16(r_xmm1, *((__m128i *) shortM128_round_inv_corr));
+ r_xmm3 = r_xmm6;
+ r_xmm2 = _mm_adds_epi16(r_xmm2, *((__m128i *) shortM128_round_inv_corr));
+ r_xmm6 = _mm_adds_epi16(r_xmm6, r_xmm4);
+
+ //Store results for row 0
+ //_mm_store_si128((__m128i *) pOutput, r_xmm7);
+ __m128i r0 = r_xmm7;
+
+ r_xmm6 = _mm_srai_epi16(r_xmm6, SHIFT_INV_COL);
+ r_xmm7 = r_xmm1;
+ r_xmm1 = _mm_adds_epi16(r_xmm1, r_xmm0);
+
+ //Store results for row 1
+ //_mm_store_si128((__m128i *) (&pOutput[1*8]), r_xmm6);
+ __m128i r1 = r_xmm6;
+
+ r_xmm1 = _mm_srai_epi16(r_xmm1, SHIFT_INV_COL);
+ r_xmm6 = temp3;
+ r_xmm7 = _mm_subs_epi16(r_xmm7, r_xmm0);
+ r_xmm7 = _mm_srai_epi16(r_xmm7, SHIFT_INV_COL);
+
+ //Store results for row 2
+ //_mm_store_si128((__m128i *) (&pOutput[2*8]), r_xmm1);
+ __m128i r2 = r_xmm1;
+
+ r_xmm5 = _mm_subs_epi16(r_xmm5, temp7);
+ r_xmm5 = _mm_srai_epi16(r_xmm5, SHIFT_INV_COL);
+
+ //Store results for row 7
+ //_mm_store_si128((__m128i *) (&pOutput[7*8]), r_xmm5);
+ __m128i r7 = r_xmm5;
+
+ r_xmm3 = _mm_subs_epi16(r_xmm3, r_xmm4);
+ r_xmm6 = _mm_adds_epi16(r_xmm6, r_xmm2);
+ r_xmm2 = _mm_subs_epi16(r_xmm2, temp3);
+ r_xmm6 = _mm_srai_epi16(r_xmm6, SHIFT_INV_COL);
+ r_xmm2 = _mm_srai_epi16(r_xmm2, SHIFT_INV_COL);
+
+ //Store results for row 3
+ //_mm_store_si128((__m128i *) (&pOutput[3*8]), r_xmm6);
+ __m128i r3 = r_xmm6;
+
+ r_xmm3 = _mm_srai_epi16(r_xmm3, SHIFT_INV_COL);
+
+ //Store results for rows 4, 5, and 6
+ //_mm_store_si128((__m128i *) (&pOutput[4*8]), r_xmm2);
+ //_mm_store_si128((__m128i *) (&pOutput[5*8]), r_xmm7);
+ //_mm_store_si128((__m128i *) (&pOutput[6*8]), r_xmm3);
+
+ __m128i r4 = r_xmm2;
+ __m128i r5 = r_xmm7;
+ __m128i r6 = r_xmm3;
+
+ r0 = _mm_add_epi16(*(const __m128i *)shortM128_128, r0);
+ r1 = _mm_add_epi16(*(const __m128i *)shortM128_128, r1);
+ r2 = _mm_add_epi16(*(const __m128i *)shortM128_128, r2);
+ r3 = _mm_add_epi16(*(const __m128i *)shortM128_128, r3);
+ r4 = _mm_add_epi16(*(const __m128i *)shortM128_128, r4);
+ r5 = _mm_add_epi16(*(const __m128i *)shortM128_128, r5);
+ r6 = _mm_add_epi16(*(const __m128i *)shortM128_128, r6);
+ r7 = _mm_add_epi16(*(const __m128i *)shortM128_128, r7);
+
+ ((__m128i *)pOutputUB)[0] = _mm_packus_epi16(r0, r1);
+ ((__m128i *)pOutputUB)[1] = _mm_packus_epi16(r2, r3);
+ ((__m128i *)pOutputUB)[2] = _mm_packus_epi16(r4, r5);
+ ((__m128i *)pOutputUB)[3] = _mm_packus_epi16(r6, r7);
+}
diff --git a/thirdparty/jpeg-compressor/patches/fix-msvc2017-build.patch b/thirdparty/jpeg-compressor/patches/fix-msvc2017-build.patch
new file mode 100644
index 0000000000..7b338de084
--- /dev/null
+++ b/thirdparty/jpeg-compressor/patches/fix-msvc2017-build.patch
@@ -0,0 +1,31 @@
+diff --git a/thirdparty/jpeg-compressor/jpgd.cpp b/thirdparty/jpeg-compressor/jpgd.cpp
+index a0c494db61..257d0b7574 100644
+--- a/thirdparty/jpeg-compressor/jpgd.cpp
++++ b/thirdparty/jpeg-compressor/jpgd.cpp
+@@ -2126,7 +2126,7 @@ namespace jpgd {
+
+ int jpeg_decoder::decode_next_mcu_row()
+ {
+- if (setjmp(m_jmp_state))
++ if (::setjmp(m_jmp_state))
+ return JPGD_FAILED;
+
+ const bool chroma_y_filtering = ((m_flags & cFlagBoxChromaFiltering) == 0) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2));
+@@ -3042,7 +3042,7 @@ namespace jpgd {
+
+ jpeg_decoder::jpeg_decoder(jpeg_decoder_stream* pStream, uint32_t flags)
+ {
+- if (setjmp(m_jmp_state))
++ if (::setjmp(m_jmp_state))
+ return;
+ decode_init(pStream, flags);
+ }
+@@ -3055,7 +3055,7 @@ namespace jpgd {
+ if (m_error_code)
+ return JPGD_FAILED;
+
+- if (setjmp(m_jmp_state))
++ if (::setjmp(m_jmp_state))
+ return JPGD_FAILED;
+
+ decode_start();
diff --git a/thirdparty/mbedtls/include/mbedtls/check_config.h b/thirdparty/mbedtls/include/mbedtls/check_config.h
index d076c2352f..93de091c4d 100644
--- a/thirdparty/mbedtls/include/mbedtls/check_config.h
+++ b/thirdparty/mbedtls/include/mbedtls/check_config.h
@@ -546,6 +546,23 @@
#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
#endif
+#if (defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
+ defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)) && \
+ !(defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
+ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) )
+#error "One or more versions of the TLS protocol are enabled " \
+ "but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx"
+#endif
+
#if defined(MBEDTLS_SSL_PROTO_DTLS) && \
!defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
!defined(MBEDTLS_SSL_PROTO_TLS1_2)
@@ -669,6 +686,10 @@
#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
#endif
+#if defined(MBEDTLS_CERTS_C) && !defined(MBEDTLS_X509_USE_C)
+#error "MBEDTLS_CERTS_C defined, but not all prerequisites"
+#endif
+
#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
#endif
diff --git a/thirdparty/mbedtls/include/mbedtls/version.h b/thirdparty/mbedtls/include/mbedtls/version.h
index 8e2ce03c32..e0a2e7f6d6 100644
--- a/thirdparty/mbedtls/include/mbedtls/version.h
+++ b/thirdparty/mbedtls/include/mbedtls/version.h
@@ -40,16 +40,16 @@
*/
#define MBEDTLS_VERSION_MAJOR 2
#define MBEDTLS_VERSION_MINOR 16
-#define MBEDTLS_VERSION_PATCH 5
+#define MBEDTLS_VERSION_PATCH 6
/**
* The single version number has the following structure:
* MMNNPP00
* Major version | Minor version | Patch version
*/
-#define MBEDTLS_VERSION_NUMBER 0x02100500
-#define MBEDTLS_VERSION_STRING "2.16.5"
-#define MBEDTLS_VERSION_STRING_FULL "mbed TLS 2.16.5"
+#define MBEDTLS_VERSION_NUMBER 0x02100600
+#define MBEDTLS_VERSION_STRING "2.16.6"
+#define MBEDTLS_VERSION_STRING_FULL "mbed TLS 2.16.6"
#if defined(MBEDTLS_VERSION_C)
diff --git a/thirdparty/mbedtls/library/ecp.c b/thirdparty/mbedtls/library/ecp.c
index 040c20bd38..725e176df2 100644
--- a/thirdparty/mbedtls/library/ecp.c
+++ b/thirdparty/mbedtls/library/ecp.c
@@ -1938,6 +1938,20 @@ static int ecp_mul_comb_after_precomp( const mbedtls_ecp_group *grp,
final_norm:
#endif
+ /*
+ * Knowledge of the jacobian coordinates may leak the last few bits of the
+ * scalar [1], and since our MPI implementation isn't constant-flow,
+ * inversion (used for coordinate normalization) may leak the full value
+ * of its input via side-channels [2].
+ *
+ * [1] https://eprint.iacr.org/2003/191
+ * [2] https://eprint.iacr.org/2020/055
+ *
+ * Avoid the leak by randomizing coordinates before we normalize them.
+ */
+ if( f_rng != 0 )
+ MBEDTLS_MPI_CHK( ecp_randomize_jac( grp, RR, f_rng, p_rng ) );
+
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_INV );
MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, RR ) );
@@ -2308,6 +2322,20 @@ static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->Z, &RP.Z, b ) );
}
+ /*
+ * Knowledge of the projective coordinates may leak the last few bits of the
+ * scalar [1], and since our MPI implementation isn't constant-flow,
+ * inversion (used for coordinate normalization) may leak the full value
+ * of its input via side-channels [2].
+ *
+ * [1] https://eprint.iacr.org/2003/191
+ * [2] https://eprint.iacr.org/2020/055
+ *
+ * Avoid the leak by randomizing coordinates before we normalize them.
+ */
+ if( f_rng != NULL )
+ MBEDTLS_MPI_CHK( ecp_randomize_mxz( grp, R, f_rng, p_rng ) );
+
MBEDTLS_MPI_CHK( ecp_normalize_mxz( grp, R ) );
cleanup:
diff --git a/thirdparty/mbedtls/library/ssl_cli.c b/thirdparty/mbedtls/library/ssl_cli.c
index afced7a99c..c5c3af69df 100644
--- a/thirdparty/mbedtls/library/ssl_cli.c
+++ b/thirdparty/mbedtls/library/ssl_cli.c
@@ -1417,6 +1417,19 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse hello verify request" ) );
+ /* Check that there is enough room for:
+ * - 2 bytes of version
+ * - 1 byte of cookie_len
+ */
+ if( mbedtls_ssl_hs_hdr_len( ssl ) + 3 > ssl->in_msglen )
+ {
+ MBEDTLS_SSL_DEBUG_MSG( 1,
+ ( "incoming HelloVerifyRequest message is too short" ) );
+ mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+ MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+ return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
+ }
+
/*
* struct {
* ProtocolVersion server_version;
@@ -1445,8 +1458,6 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
}
cookie_len = *p++;
- MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len );
-
if( ( ssl->in_msg + ssl->in_msglen ) - p < cookie_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
@@ -1455,6 +1466,7 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
+ MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len );
mbedtls_free( ssl->handshake->verify_cookie );
diff --git a/thirdparty/mbedtls/library/ssl_tls.c b/thirdparty/mbedtls/library/ssl_tls.c
index b8f35fec5d..cbec74fe8c 100644
--- a/thirdparty/mbedtls/library/ssl_tls.c
+++ b/thirdparty/mbedtls/library/ssl_tls.c
@@ -1004,8 +1004,6 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_init != NULL )
{
- int ret = 0;
-
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) );
if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, transform->keylen,
@@ -2885,15 +2883,18 @@ static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl );
/*
* Swap transform_out and out_ctr with the alternative ones
*/
-static void ssl_swap_epochs( mbedtls_ssl_context *ssl )
+static int ssl_swap_epochs( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_transform *tmp_transform;
unsigned char tmp_out_ctr[8];
+#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
+ int ret;
+#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
if( ssl->transform_out == ssl->handshake->alt_transform_out )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) );
- return;
+ return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) );
@@ -2920,7 +2921,9 @@ static void ssl_swap_epochs( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
-#endif
+#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
+
+ return( 0 );
}
/*
@@ -2957,7 +2960,8 @@ int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
ssl->handshake->cur_msg = ssl->handshake->flight;
ssl->handshake->cur_msg_p = ssl->handshake->flight->p + 12;
- ssl_swap_epochs( ssl );
+ if( ( ret = ssl_swap_epochs( ssl ) ) != 0 )
+ return( ret );
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING;
}
@@ -2980,7 +2984,8 @@ int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
if( is_finished && ssl->handshake->cur_msg_p == ( cur->p + 12 ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "swap epochs to send finished message" ) );
- ssl_swap_epochs( ssl );
+ if( ( ret = ssl_swap_epochs( ssl ) ) != 0 )
+ return( ret );
}
ret = ssl_get_remaining_payload_in_datagram( ssl );
@@ -3017,7 +3022,10 @@ int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
if( ( max_frag_len < 12 ) || ( max_frag_len == 12 && hs_len != 0 ) )
{
if( is_finished )
- ssl_swap_epochs( ssl );
+ {
+ if( ( ret = ssl_swap_epochs( ssl ) ) != 0 )
+ return( ret );
+ }
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
@@ -3997,17 +4005,23 @@ static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
{
+ int send_ret;
+ MBEDTLS_SSL_DEBUG_MSG( 1, ( "sending HelloVerifyRequest" ) );
+ MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network",
+ ssl->out_buf, len );
/* Don't check write errors as we can't do anything here.
* If the error is permanent we'll catch it later,
* if it's not, then hopefully it'll work next time. */
- (void) ssl->f_send( ssl->p_bio, ssl->out_buf, len );
+ send_ret = ssl->f_send( ssl->p_bio, ssl->out_buf, len );
+ MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", send_ret );
+ (void) send_ret;
return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
}
if( ret == 0 )
{
- /* Got a valid cookie, partially reset context */
+ MBEDTLS_SSL_DEBUG_MSG( 1, ( "cookie is valid, resetting context" ) );
if( ( ret = ssl_session_reset_int( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret );
diff --git a/thirdparty/mbedtls/library/x509.c b/thirdparty/mbedtls/library/x509.c
index 2e0b0e8f6c..4d25303206 100644
--- a/thirdparty/mbedtls/library/x509.c
+++ b/thirdparty/mbedtls/library/x509.c
@@ -1063,7 +1063,7 @@ cleanup:
mbedtls_x509_crt_free( &clicert );
#else
((void) verbose);
-#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA1_C */
+#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA256_C */
return( ret );
}
diff --git a/thirdparty/misc/cubemap_coeffs.h b/thirdparty/misc/cubemap_coeffs.h
new file mode 100644
index 0000000000..1db03ce7c4
--- /dev/null
+++ b/thirdparty/misc/cubemap_coeffs.h
@@ -0,0 +1,28 @@
+// Copyright 2016 Activision Publishing, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#ifndef CUBEMAP_COEFFS_H
+#define CUBEMAP_COEFFS_H
+
+const float low_quality_coeffs[7][5][6][4] = { { { { 0.0002037563, 0.0045063655, -0.0016408688, 0.00012037493 }, { -9.1834951e-05, -0.008947532, -8.1524405e-05, -3.9080094e-05 }, { -2.6038267e-05, -6.8409667e-05, 7.2175702e-05, 0.25492775 }, { -9.9426044e-05, 0.0025427756, -0.00074437925, 1.1773191e-05 }, { -3.2668211e-05, 0.0026930659, -4.824934e-05, -0.0006835048 }, { -0.0002864144, -0.0032220854, 0.0021558286, -0.00014573736 } }, { { 0.00030683201, 0.0026819548, -0.00060011756, -0.0067169226 }, { -0.0030993251, 0.0098575575, 0.0022416671, -8.9075401e-05 }, { 0.00052405626, 0.00057860515, 0.00011654518, -0.048018609 }, { 0.00010850967, -0.0088443512, -0.0018168095, 8.6633128e-05 }, { 0.003333989, -0.0050956447, -8.0414612e-05, 0.0049721239 }, { -4.0961436e-05, -8.5486984e-05, 0.0058683066, 2.2978359e-05 } }, { { 0.99999993, 0.99998625, 0.99999847, 0.99997743 }, { 0.99999519, 0.99991138, 0.99999748, 1 }, { 0.99999986, 0.99999983, 0.99999999, 0.96576708 }, { 0.99999999, 0.99995765, 0.99999807, 1 }, { 0.99999444, 0.99998339, 1, 0.99998741 }, { 0.99999996, 0.99999481, 0.99998046, 0.99999999 } }, { { -0.32267524, -0.65409377, -1.4666488, 0.87153305 }, { -1.264365, 0.89880861, -1.2245906, -0.88501403 }, { -0.31118682, -0.086150323, -0.58811532, 1.1317711 }, { -1.2193493, 1.250379, -1.0871569, -0.12694096 }, { -0.4012249, -0.47436307, -0.59661001, 2.7313005 }, { -1.3109856, 0.60929855, 0.55672643, -0.39880018 } }, { { 0.93273157, 0.59530745, 1.1994788, 0.19102276 }, { 1.2272239, 0.23245736, 1.2577607, 2.5491008 }, { 1.1210098, 0.83074953, 1.3049282, -0.001940633 }, { 1.5839111, 0.10520816, 1.150458, 2.3251789 }, { 0.688692, 0.59807498, 1.3374877, 0.095746692 }, { 1.3054173, 0.36604721, 0.065870226, 1.6496907 } } }, { { { 0.10348445, -4.6771514e-07, -0.011513131, 8.8921052e-05 }, { -0.042152043, 0.013143535, 0.00029120107, 0.036661611 }, { -0.04516036, 0.011438473, -0.0099289792, -0.011707897 }, { -0.034779497, 0.0090981166, -5.4202726e-05, 0.038592793 }, { -0.0071967376, -0.0056614418, -0.012278945, 0.0056867462 }, { -0.037678514, 0.011570177, 0.00029044557, 0.038583909 } }, { { 0.048320869, 1.4603673e-05, 0.0092672368, 0.00033289199 }, { 0.0071001761, -0.0090106091, -0.0027305905, -0.00221479 }, { -0.0027204116, 0.00017921587, 0.015296357, -0.00010306185 }, { 0.0079350203, -0.014772431, -1.2410913e-05, -0.0062296897 }, { 0.025087691, 0.00086046427, 0.015034685, -0.00078224706 }, { 0.00074587265, -0.014602074, 0.00027338224, -0.012848552 } }, { { 0.99345662, 1, 0.99989078, 0.99999994 }, { 0.99908598, 0.99987302, 0.99999623, 0.99932528 }, { 0.99897605, 0.99993456, 0.9998337, 0.99993145 }, { 0.99936351, 0.99984949, 1, 0.9992356 }, { 0.99965935, 0.9999836, 0.99981158, 0.99998352 }, { 0.99928963, 0.99982644, 0.99999992, 0.99917276 } }, { { 3.6882765, 0.15963861, 0.55983965, 0.4075649 }, { 2.1169304, 0.56463157, 0.52957047, 2.0117964 }, { 3.1080461, 0.09682931, 0.42125986, 0.089254784 }, { 1.4247315, 0.48411378, -0.17039102, 1.7431674 }, { 4.0339531, 0.14046159, 0.89848909, 0.011661811 }, { 1.9787852, 0.61750145, 0.63514194, 1.9359003 } }, { { 0.030848793, 1.4472743, 1.4356825, 1.4078009 }, { 0.37639678, 1.0793106, 1.1945413, 0.43983395 }, { 0.27451605, 1.5256415, 1.016769, 1.4850575 }, { 0.54580883, 1.1332879, 3.1331784, 0.60772955 }, { 0.11785158, 1.3928946, 0.94998805, 1.0377182 }, { 0.2842108, 1.0026911, 1.9064553, 0.27147854 } } }, { { { -0.096789259, 0.10326967, 0.0011799959, -0.03077328 }, { 0.08342021, 0.033260738, -0.00045864451, -0.021450568 }, { -0.093369441, -0.05807574, -0.033745214, 0.023817208 }, { 0.056747754, 0.031140512, 0.00019362509, -0.023727797 }, { -0.084538386, -0.040545412, -0.0076838784, 0.03424599 }, { 0.074312056, 0.027619787, 0.0015509082, -0.031043528 } }, { { -0.0085160473, -0.012179292, 0.0049910118, 0.020224799 }, { 0.022559343, -0.016273333, -0.0069382139, 0.00058083224 }, { -0.001115062, 0.035002846, -0.0038974773, -0.039378629 }, { 0.0014921617, -0.00058523872, -0.0011606685, 0.02807528 }, { -0.021454809, 0.052957852, -0.0022083677, -0.027956663 }, { -0.016486487, -0.0040233682, 0.00029949558, 0.021924605 } }, { { 0.99526846, 0.99457883, 0.99998685, 0.99932175 }, { 0.99625908, 0.99931422, 0.99997583, 0.99976974 }, { 0.99563091, 0.99769836, 0.99942287, 0.99894047 }, { 0.99838743, 0.99951485, 0.99999931, 0.99932416 }, { 0.99618922, 0.99777329, 0.99996804, 0.99902234 }, { 0.99709875, 0.9996104, 0.99999875, 0.99927754 } }, { { 3.0342011, 4.8022834, 1.3814123, 1.5280754 }, { 2.9043837, 1.7325954, 1.422223, 2.0569263 }, { 3.0358722, 5.3331504, 1.5680146, 1.6079289 }, { 3.2062833, 1.5368069, 1.0484709, 1.5399477 }, { 2.4471653, 4.0916696, 1.5060688, 1.5807009 }, { 2.6932695, 1.5161537, 1.3991175, 1.6301918 } }, { { 0.50787578, 0.17735471, 1.4006765, 1.0878482 }, { 0.69514518, 1.6765187, 1.2224869, 1.3461327 }, { 0.71381288, 0.17509216, 1.2712934, 0.94575821 }, { 1.1817337, 1.796984, 1.8671538, 1.5708691 }, { 0.55621228, 0.38291359, 1.4128781, 0.82625349 }, { 0.72441647, 1.005794, 1.5522327, 1.6032524 } } }, { { { -0.00041301094, -0.095882618, 0.26932618, -0.25137214 }, { 0.13737415, -0.12694293, -0.0090389663, 0.07227623 }, { -0.005236407, -0.0072961249, 0.27776083, -0.19536433 }, { 0.12781899, -0.042881667, -0.095979169, 0.088937396 }, { 0.037496084, -0.090547583, 0.22112334, -0.21930294 }, { 0.13353408, -0.084346121, -0.011365728, 0.043459312 } }, { { -0.05799135, -0.048612281, 0.02422989, 0.015536268 }, { -0.083144241, 0.039381032, 0.018705957, 0.029297922 }, { 0.026364989, -0.041927591, 0.036718516, 0.0050376168 }, { -0.11562256, 0.043521976, -0.014481644, 0.01529188 }, { -0.047859898, -0.057779647, -0.053171395, -0.0063193506 }, { -0.028781196, 0.041145059, -0.00018523142, 0.053524246 } }, { { 0.998317, 0.99420489, 0.96274416, 0.96776581 }, { 0.98702349, 0.99112796, 0.99978417, 0.99695425 }, { 0.99963867, 0.99909401, 0.95994827, 0.9807178 }, { 0.98503489, 0.99813175, 0.99527799, 0.99591983 }, { 0.99815003, 0.99421459, 0.97379529, 0.97563635 }, { 0.99062621, 0.99558667, 0.99993539, 0.99762039 } }, { { 2.3221943, 2.5383575, 4.3177232, 4.2016467 }, { 3.1936529, 3.0443024, 2.548962, 2.7636456 }, { 2.5923827, 2.3497949, 4.2471014, 4.1975975 }, { 3.3748785, 3.2836577, 2.9220414, 2.7175317 }, { 2.3290083, 2.5560991, 4.3572168, 4.4372585 }, { 3.1512055, 3.2863613, 2.4475378, 2.3620003 } }, { { 0.62833231, 0.52378061, 0.55845033, 0.64883444 }, { 0.76905594, 1.1017801, 1.8714048, 1.5664383 }, { 1.5283278, 1.2423369, 0.62247385, 1.0341956 }, { 0.77484548, 1.6866409, 1.0307399, 1.4224643 }, { 0.85627405, 0.72516079, 0.70094339, 0.7547877 }, { 1.202842, 1.7650605, 1.5938526, 0.97031337 } } }, { { { -0.078108035, -0.049518839, 0.26950139, -0.51522828 }, { 0.43015518, -0.045354216, 0.094550359, -0.2395012 }, { -0.079900522, -0.082582235, 0.24464909, -0.5234896 }, { 0.38422945, -0.023833644, 0.07334288, -0.22827313 }, { -0.075370379, -0.05156594, 0.19883182, -0.45064193 }, { 0.46285395, 0.021899343, 0.10155287, -0.25974773 } }, { { 0.068681419, -0.32175988, 0.15143274, -0.0066205388 }, { -0.17060226, 0.31051319, -0.080511981, -0.1593209 }, { 0.08167251, -0.32517768, 0.10937023, -0.06941926 }, { -0.14580685, 0.32474959, -0.081718057, -0.11068378 }, { 0.053961394, -0.29322836, 0.10408839, -0.02243046 }, { -0.030598471, 0.34332821, -0.091528353, -0.16299796 } }, { { 0.99457629, 0.9455255, 0.95101899, 0.85702741 }, { 0.88648824, 0.94948647, 0.99225906, 0.95773484 }, { 0.99345131, 0.94204015, 0.96342357, 0.84919939 }, { 0.9116513, 0.94549969, 0.99395321, 0.96728511 }, { 0.99569447, 0.95465076, 0.97449039, 0.89242295 }, { 0.88590629, 0.93896015, 0.99061071, 0.95182077 } }, { { 3.6380949, 4.1749529, 4.1351439, 4.8389883 }, { 5.256362, 4.2027959, 3.6096892, 3.9848645 }, { 3.5689427, 3.8620869, 4.0023981, 4.8268584 }, { 5.1128497, 4.468934, 3.5851596, 4.047485 }, { 3.7014988, 4.1310058, 4.2446872, 5.3049323 }, { 4.8659881, 4.3133002, 3.4582876, 3.8863853 } }, { { 1.6276316, 0.7747672, 1.0485958, 0.73900224 }, { 0.72010795, 0.65403093, 1.3179681, 0.65610074 }, { 1.5881174, 0.55108527, 1.0509725, 0.72153362 }, { 1.1389053, 1.0905142, 1.6661598, 0.9987548 }, { 1.977914, 0.83001686, 1.0571479, 0.80249183 }, { 0.94107069, 0.80840873, 0.95379751, 0.50386367 } } }, { { { 0.015525428, -0.48038019, -0.021799698, 0.43629156 }, { 0.045681247, -0.55039024, -0.54573329, 0.57817853 }, { -0.045869129, -0.42209953, -0.14040829, 0.37787106 }, { 0.66327604, -0.70070311, -0.55261635, 0.63446196 }, { 0.015397585, -0.43515767, -0.021927897, 0.4203714 }, { 0.85681772, -0.65394729, -0.67557236, 0.60104142 } }, { { -0.31503888, -0.26745648, 0.26817896, 0.26548747 }, { -0.93282124, -0.033621213, 0.68374802, -0.10858524 }, { -0.21723689, -0.17935495, 0.38521982, 0.2578335 }, { -0.39913153, 0.23555359, 0.59589456, -0.19075103 }, { -0.28851798, -0.24142459, 0.28279261, 0.24766617 }, { -0.29435977, -0.25850549, 0.57790878, -0.200546 } }, { { 0.94895177, 0.83528552, 0.96312243, 0.85974768 }, { 0.35743218, 0.8342303, 0.48442112, 0.80865248 }, { 0.97504059, 0.88863029, 0.9120807, 0.88923301 }, { 0.63305523, 0.67344611, 0.58268761, 0.74904744 }, { 0.95735066, 0.86738225, 0.9589304, 0.87289711 }, { 0.42333878, 0.71100482, 0.45784651, 0.77364753 } }, { { 5.3641275, 5.2550422, 5.3103777, 5.2851215 }, { 5.2657045, 6.2095784, 6.9549598, 4.9205516 }, { 5.163385, 5.3141038, 4.9907618, 5.3583852 }, { 6.1257061, 6.1102338, 6.9549598, 5.3129951 }, { 5.3138838, 5.3257842, 5.3133783, 5.2687156 }, { 5.8915091, 6.153324, 6.9549598, 4.9568971 } }, { { 3.1221918, 1.1882615, 2.6991784, 1.1185048 }, { -0.2322432, -0.16590163, 0.088416958, 0.057399579 }, { 3.4395383, 1.5836276, 2.6242352, 1.2873336 }, { -0.23767634, -0.79425452, 0.20477899, 0.40461516 }, { 2.2521751, 1.1933374, 2.3309484, 1.0185309 }, { -0.099258385, -0.2173726, 0.0736866, 0.15470436 } } }, { { { 0.066050217, -0.33053278, -0.13771479, 0.33278465 }, { 0.00084467977, -0.50077778, -0.30083482, 0.6494273 }, { 0.24880159, -0.30354993, -0.15417892, 0.38203296 }, { -0.073325098, -0.4778777, 0.10779844, 0.66683723 }, { 0.15703809, -0.36335455, -0.15657631, 0.35926503 }, { 0.26127617, -0.29524368, -0.14490804, 0.65461301 } }, { { -0.57970022, -0.33939622, 0.72169742, 0.320959 }, { -0.38698206, -0.12730306, 0.65810895, 0.026509232 }, { -0.6199708, -0.34745658, 0.68683659, 0.34547285 }, { -0.3613378, -0.14006845, 0.65917895, 0.038446867 }, { -0.57778101, -0.35057776, 0.57837882, 0.36488991 }, { -0.50051482, -0.019174387, 0.50816239, 0.02682636 } }, { { 0.8121484, 0.88065787, 0.67837119, 0.88670158 }, { 0.92208686, 0.85616327, 0.69021085, -0.75996148 }, { 0.74413303, 0.88720424, 0.71027063, 0.85714604 }, { 0.92954743, 0.86718726, 0.74421946, -0.74421095 }, { 0.80094204, 0.86317363, 0.8006009, 0.85894353 }, { 0.82536033, 0.95522956, 0.8489833, -0.75548802 } }, { { 5.7725061, 5.1565901, 5.6224483, 5.0847054 }, { 5.7717118, 6.4180057, 6.9797014, -0.03290957 }, { 5.7847117, 5.2015529, 5.614561, 5.2019388 }, { 6.2613999, 6.5807982, 6.9797014, -0.032764603 }, { 5.823775, 5.2332343, 5.826694, 5.197143 }, { 6.3463188, 5.8174311, 6.9797014, -0.032766769 } }, { { 2.96787, 1.3557735, 2.0749129, 1.3066609 }, { -0.92782801, 0.0079162579, -0.33479446, 2.699659e-05 }, { 2.1997063, 3.1083252, 2.6810949, 1.8276262 }, { -0.48654719, -0.10954189, -0.32175132, 5.490092e-05 }, { 3.1970446, 1.787085, 3.062849, 1.6274811 }, { -0.78882801, -0.34050184, -0.59962127, 3.6554198e-05 } } } };
+
+const float high_quality_coeffs[7][5][3][24][4] = { { { { { -4.8355339e-06, -4.4902569e-05, -9.2632249e-05, -0.00053773136 }, { 0.0040143823, -0.00060900339, -0.0095301923, -0.0053956011 }, { -0.0005923892, -3.6901978e-05, -5.6694857e-06, -0.00017018564 }, { 0.0012441402, 0.02236187, 0.022751769, 0.0062788948 }, { 0.00013810055, -2.2709815e-05, 0.0054849671, -1.6599195e-05 }, { -0.020320408, -0.017066319, -0.017457746, 0.022910628 }, { 0.00024171724, 9.7419073e-05, -0.00047804272, -0.00010093683 }, { 7.6988167e-05, 1.8551597e-05, -5.7692813e-05, -3.332362e-05 }, { -0.00062766208, 2.713742e-05, 0.00026511682, 2.3841873e-05 }, { -0.00043656844, 0.0028645469, 0.0049817085, 0.0080221478 }, { -3.3210444e-05, -8.0852386e-05, -2.2111492e-06, -8.4430827e-05 }, { 0.010967284, 0.018811225, 0.017569463, -0.0046944996 }, { -0.00018391248, -0.00010462174, -0.00017726, -0.00018490133 }, { 0.00012591989, 0.015965386, 0.015964059, -0.0078018431 }, { -0.006125333, -8.2224165e-05, -0.00020500151, -0.00025207244 }, { -0.00016320041, -0.0001279242, 0.00014038799, 8.1359421e-05 }, { -0.00064341098, -0.0011265496, -0.0011634792, -0.00081607159 }, { 0.00089294825, 0.0061923653, 0.0052662392, -0.00058227469 }, { -2.4001308e-05, -1.3534224e-05, -1.4720478e-05, -2.5120827e-05 }, { 0.00029964918, -0.0045658543, -0.0045581938, 0.0017106208 }, { 7.5790173e-05, -1.8265415e-05, 1.5918205e-05, 5.8524021e-05 }, { 0.0011669872, -0.00017571882, -0.00017190275, -0.0023833977 }, { 0.0033487264, -0.0066535821, -0.0066413786, -0.0032332601 }, { -3.6468807e-05, -0.00068145131, -9.8190714e-05, -8.7169435e-05 } }, { { -0.0010440653, -8.9750644e-05, 4.971182e-05, 0.0044618878 }, { 0.0078333883, -0.00090884312, -0.00046920549, -0.002465051 }, { -0.0058778609, 0.0026554895, -0.00031880506, -0.00010649091 }, { -0.0015095448, 0.0094026506, 0.009492703, 0.0024572848 }, { 0.0047331786, 0.00070722401, 0.0028798817, -0.00039779892 }, { -0.0089878107, -0.0095474878, -0.0097187652, 0.008765907 }, { -4.0435321e-05, -0.00061813281, -0.0060490143, 0.0016259965 }, { -0.00014720558, -1.0601876e-05, 0.00014757138, 0.00016227641 }, { -0.010428289, -0.00031812813, -0.0016172213, -0.00012022134 }, { 0.0040517131, 0.0072972763, 0.0060433905, 0.0025041645 }, { 0.00014090924, 0.00027612853, 0.00015961665, 0.0002605418 }, { -0.00020653783, -0.00048482867, -0.00058472338, 0.00026413759 }, { 0.00056712638, 0.00026385353, 0.00035484947, 0.00033212447 }, { -0.00094663094, 0.0029891757, 0.0029887838, -0.0026583585 }, { -0.0017400246, 0.00042350567, 0.00086128207, 0.00039863587 }, { 0.00059604848, 0.00027495434, -0.00059956434, -4.4981673e-05 }, { -0.010211343, -0.0080580409, -0.0085333216, 0.0023258717 }, { 0.00042832593, 0.0056750222, 0.0048059635, -0.0092168281 }, { 3.0214612e-05, 4.540924e-06, 1.7239937e-05, 2.783598e-05 }, { 0.00029393335, -4.5128636e-05, -4.3089017e-05, 0.00030682556 }, { -4.7077735e-05, -1.3596835e-05, -0.0015338149, -7.4957991e-05 }, { -0.00097136844, 0.00018564298, 0.00021815754, 0.0015095577 }, { 0.00043929849, -0.0014691094, -0.0014671742, -0.00029365954 }, { 8.8554045e-05, 0.0062500772, 0.0001495049, 0.00021007601 } }, { { 0.0020307077, 0.0020947445, 0.0017438295, 0.0084822342 }, { -0.0069727503, -0.0010131005, 0.0055261321, -0.0020442588 }, { 0.00031035611, 0.00010839441, 3.7359209e-06, 4.3112837e-05 }, { 9.1207794e-05, 0.0050148169, 0.0051071455, 0.0033679057 }, { -0.00090101737, -0.00053793176, -0.0025829621, 0.0003241927 }, { -0.0019244714, -0.0033690472, -0.0035193497, 0.0027653636 }, { -0.00065476293, -0.00017787403, 0.00040383136, -0.00018123957 }, { -0.00030640434, -0.00018961553, -0.00011036218, -0.00015793049 }, { 0.001110592, -0.00021252645, 0.00015849587, -3.7758317e-05 }, { 0.00077967828, -0.0051765235, -0.0078505592, -0.010796339 }, { -1.2024951e-05, 6.48806e-05, -3.9409005e-05, 7.4639306e-05 }, { -0.00017352424, -0.00037802595, -0.00045639468, 0.00016843169 }, { -4.2866244e-05, -4.3730932e-06, 7.3574276e-05, 5.6076779e-05 }, { 0.00024802387, 0.0018053101, 0.0018042994, -0.0016700716 }, { 0.0082698262, -0.00014605077, 0.0004377682, 8.1585074e-05 }, { -4.494343e-06, 0.00019781519, -0.00058910268, -0.00027360572 }, { 0.0013016934, 0.0021020456, 0.0022718598, -0.0059377824 }, { 0.002185371, -0.0080788056, -0.0071952836, 0.0039688918 }, { 0.00013048617, 0.0001738124, 0.00012978924, 0.00013813358 }, { 0.00032386518, 0.00023046021, 0.00023064714, 0.00033762343 }, { 0.00023643771, 0.00019652953, 0.0013083597, 0.00024739959 }, { -0.0063957036, -0.0055319023, -0.0054742301, -0.0037204932 }, { -0.0005510683, -0.0007715413, -0.00077385934, -0.001009415 }, { 0.00017904616, -0.00096137522, 0.00030252599, -2.2478138e-05 } } }, { { { -0.00038948583, -0.00040817153, -0.00041280315, -0.0010985631 }, { 0.0025695337, 0.00042904308, 0.0054649973, -0.0055079106 }, { 0.00052050672, 2.2618679e-05, 0.00024058975, -0.00012632201 }, { -0.013468886, 0.0079396715, 0.0079402246, 0.026283756 }, { -7.922122e-05, -3.4761763e-06, -0.0041716347, 0.0001478739 }, { 0.023716381, -0.016415262, -0.015296927, -0.021050827 }, { 3.7654391e-05, 0.00012765816, -0.0001337099, 0.00051483398 }, { 0.00015671907, 0.00010686796, 2.1421097e-05, -2.2281569e-05 }, { 3.1779413e-06, 0.00010449913, -0.00018303614, 7.5382489e-05 }, { -0.00020526765, -0.0011333575, -0.0050720108, 0.0051482782 }, { 4.0450357e-05, 1.0808158e-05, -2.3316095e-05, 9.7767333e-06 }, { -0.019107229, 0.010907324, 0.0048969594, 0.017851514 }, { 7.4048796e-05, -7.041835e-06, 8.0226174e-05, 5.1714105e-05 }, { -0.016564627, 0.0023486944, 0.0023601429, 0.016005248 }, { -0.004528284, 3.6291049e-05, 2.4229636e-05, 0.0024853948 }, { 5.6882054e-05, 6.8805135e-05, 0.00013119897, 0.00010339801 }, { 0.00021183341, 0.0008203137, -7.204401e-05, 0.00062599728 }, { -0.00099314707, 0.0030198762, -0.0038989955, 0.00055571214 }, { -7.4247984e-05, -8.3993373e-05, -5.9133252e-05, -7.7411989e-05 }, { 0.0054296732, -0.00057858871, -0.00058417754, -0.005072911 }, { -0.00019259782, -0.00018772532, -4.2959783e-05, -0.0001827295 }, { -0.00029351865, 0.00013736372, 0.00016666048, 0.00020873447 }, { 0.0069341659, 0.0027612928, 0.0027538377, -0.0061770317 }, { 4.2584714e-05, -0.00037063589, -9.0693123e-06, 0.00011845784 } }, { { 0.0028834168, 0.0031807308, 0.0031352582, 0.01064051 }, { 0.0049297987, -4.2149356e-05, -0.0014926841, -0.0002300371 }, { 0.0020396303, -0.00066042794, -6.4359283e-05, 0.00017835163 }, { -0.0025767816, 0.0025148152, 0.0025224779, 0.0043006543 }, { -0.00042084416, -0.00013534305, 0.002453623, -4.0707749e-05 }, { -0.0001803055, -0.0010450606, -0.00084380806, 0.00014843677 }, { -0.0064067107, 0.00011012652, -0.0022552747, -0.00080508294 }, { -0.00017778763, -4.296789e-05, 0.00015343883, 0.00025036711 }, { 0.002825978, -0.00031945362, -0.00031987612, -0.00021117763 }, { 0.00032791249, -0.00049524542, 0.0049368722, -0.0017186408 }, { -0.0001685943, -0.00016766033, -0.0001755097, -0.00017067307 }, { 0.00023939157, -0.00011793706, -6.0620575e-05, -0.0002706595 }, { -2.9718673e-05, 3.5950879e-05, 1.839844e-05, -2.8718148e-05 }, { -0.0017260981, 0.00012145435, 0.0001236679, 0.0018292155 }, { 0.0036086706, 0.0001026898, -2.5518889e-05, -0.00019830236 }, { -0.00031546808, -0.00042107458, -0.00059963868, -0.00061472497 }, { -0.0074719522, 0.0015719596, -0.0033624165, -0.0092664101 }, { -0.0011285776, 0.0018601435, 0.00052060704, -1.5554679e-05 }, { 4.9853171e-05, 7.3650922e-05, 3.4080107e-05, 5.4255445e-05 }, { 0.00015102779, -2.58105e-05, -2.5851018e-05, -4.5185316e-05 }, { 0.0002057452, 0.00019037765, 0.0040052198, 0.00020046579 }, { 0.0027727314, 0.0040749211, 0.0036050794, 0.0034635222 }, { 0.00042503689, 0.00056027382, 0.00056052971, -8.2485044e-05 }, { -5.6309634e-05, 0.0019722025, 6.4267434e-05, -0.00020376412 } }, { { 0.0051607661, 0.0047835358, 0.0047658352, 0.0054281814 }, { -0.0040939561, 0.0012119183, -0.0023408179, -0.00055891234 }, { -0.0031939804, -0.0015954053, -0.00018570689, 0.00028849431 }, { -0.0075625096, 0.0033878734, 0.0033797415, 0.010242674 }, { -0.002293562, 0.00024245282, 0.0019455622, 0.0039550747 }, { 0.0090386754, -0.0086947671, -0.0082684939, -0.0075613346 }, { -0.00085735117, 3.4822634e-05, -0.0024653972, -0.00090964985 }, { -0.00013750587, -0.00010089501, 6.3555498e-05, 0.0002758494 }, { 0.0060496328, -0.00032664426, 0.0005979723, -0.00018819024 }, { 0.00072724184, 0.00082242885, 0.0045668772, -0.0054557456 }, { -9.6167811e-05, 7.9856612e-05, 0.00015672473, 8.0901183e-05 }, { 0.00038859448, -0.00025360755, -0.00017624981, -0.00049125519 }, { -8.8277361e-05, 2.4159527e-05, -0.00016014627, -2.7854246e-05 }, { -0.0037308647, 0.00041434141, 0.0004167221, 0.0037190244 }, { 0.00050696744, -4.6752715e-05, 0.00033183668, -0.0025882828 }, { -0.00015915702, -0.0002325901, -0.00036157415, -0.00016391937 }, { 0.00012320153, 0.0026711886, 0.0018414591, -0.0058215223 }, { -0.0029409983, -0.00015460743, 0.0031951665, 0.0074654329 }, { 9.9084813e-05, 9.1785865e-05, 5.9300007e-05, 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0.044010315, 0.001644876 }, { 0.016256387, 0.0083249367, 0.019570849, -0.0021276222 }, { 0.0079070076, -0.024696939, 0.044311101, 0.023671132 }, { -0.0081796119, -0.0024995551, 0.033501743, -0.031958988 }, { 0.0065005403, -0.076642001, 0.015736477, 0.030966939 }, { 0.029110717, 0.039154477, -0.074376619, 0.025532063 }, { -0.10980761, 0.0038346834, 0.014449171, -0.030702653 }, { -0.00068350423, -0.037251569, -0.008409224, -0.026322878 }, { 0.035406012, 0.064176275, 0.031437854, -0.0344642 }, { 0.037145809, -0.024909212, 0.041030386, 0.035216105 }, { -0.093276646, -0.013904083, -0.019536023, -0.023834405 }, { 0.042751846, -0.03620164, 0.081115921, 0.018379967 }, { -0.023909625, 0.012833691, 0.048086442, -0.0097340268 }, { 0.039552712, -0.00026806514, 0.011646753, 0.0065939486 }, { 0.058985248, 0.020165701, 0.0076721521, 0.033274221 }, { 0.052889871, 0.0042520093, 0.016490396, 0.009287973 }, { 0.044305975, -0.0016263469, 0.041390177, 0.033541355 }, { 0.014595133, -0.004801042, -0.0049517303, 0.015714264 }, { 0.00075086205, 0.0080838736, -0.037611057, -0.030488441 }, { 0.0019178075, -0.0082517768, -0.002525773, 0.0043993022 }, { 0.023774971, 0.020335611, 0.0056643868, -0.032100338 } } } } };
+
+#endif
diff --git a/thirdparty/vulkan/android/vk_mem_alloc.cpp b/thirdparty/vulkan/android/vk_mem_alloc.cpp
new file mode 100644
index 0000000000..a28454cf6e
--- /dev/null
+++ b/thirdparty/vulkan/android/vk_mem_alloc.cpp
@@ -0,0 +1,8 @@
+#define VMA_IMPLEMENTATION
+#ifdef DEBUG_ENABLED
+#ifndef _DEBUG
+#define _DEBUG
+#endif
+#endif
+// Include memory allocator from Android NDK
+#include <vk_mem_alloc.h>
diff --git a/thirdparty/vulkan/vk_enum_string_helper.h b/thirdparty/vulkan/vk_enum_string_helper.h
index 00c2b9d1d5..1c99b31270 100644
--- a/thirdparty/vulkan/vk_enum_string_helper.h
+++ b/thirdparty/vulkan/vk_enum_string_helper.h
@@ -31,7 +31,7 @@
#pragma once
-#ifdef _WIN32
+#ifdef _MSC_VER
#pragma warning( disable : 4065 )
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 01:53:06 +0000