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-rw-r--r--drivers/webp/dsp/dec.c338
1 files changed, 186 insertions, 152 deletions
diff --git a/drivers/webp/dsp/dec.c b/drivers/webp/dsp/dec.c
index 9ae7b6fa76..77a00381c5 100644
--- a/drivers/webp/dsp/dec.c
+++ b/drivers/webp/dsp/dec.c
@@ -1,53 +1,20 @@
// Copyright 2010 Google Inc. All Rights Reserved.
//
-// This code is licensed under the same terms as WebM:
-// Software License Agreement: http://www.webmproject.org/license/software/
-// Additional IP Rights Grant: http://www.webmproject.org/license/additional/
+// Use of this source code is governed by a BSD-style license
+// that can be found in the COPYING file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS. All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
-// Speed-critical decoding functions.
+// Speed-critical decoding functions, default plain-C implementations.
//
// Author: Skal (pascal.massimino@gmail.com)
#include "./dsp.h"
#include "../dec/vp8i.h"
-#if defined(__cplusplus) || defined(c_plusplus)
-extern "C" {
-#endif
-
//------------------------------------------------------------------------------
-// run-time tables (~4k)
-
-static uint8_t abs0[255 + 255 + 1]; // abs(i)
-static uint8_t abs1[255 + 255 + 1]; // abs(i)>>1
-static int8_t sclip1[1020 + 1020 + 1]; // clips [-1020, 1020] to [-128, 127]
-static int8_t sclip2[112 + 112 + 1]; // clips [-112, 112] to [-16, 15]
-static uint8_t clip1[255 + 510 + 1]; // clips [-255,510] to [0,255]
-
-// We declare this variable 'volatile' to prevent instruction reordering
-// and make sure it's set to true _last_ (so as to be thread-safe)
-static volatile int tables_ok = 0;
-
-static void DspInitTables(void) {
- if (!tables_ok) {
- int i;
- for (i = -255; i <= 255; ++i) {
- abs0[255 + i] = (i < 0) ? -i : i;
- abs1[255 + i] = abs0[255 + i] >> 1;
- }
- for (i = -1020; i <= 1020; ++i) {
- sclip1[1020 + i] = (i < -128) ? -128 : (i > 127) ? 127 : i;
- }
- for (i = -112; i <= 112; ++i) {
- sclip2[112 + i] = (i < -16) ? -16 : (i > 15) ? 15 : i;
- }
- for (i = -255; i <= 255 + 255; ++i) {
- clip1[255 + i] = (i < 0) ? 0 : (i > 255) ? 255 : i;
- }
- tables_ok = 1;
- }
-}
static WEBP_INLINE uint8_t clip_8b(int v) {
return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255;
@@ -59,9 +26,16 @@ static WEBP_INLINE uint8_t clip_8b(int v) {
#define STORE(x, y, v) \
dst[x + y * BPS] = clip_8b(dst[x + y * BPS] + ((v) >> 3))
-static const int kC1 = 20091 + (1 << 16);
-static const int kC2 = 35468;
-#define MUL(a, b) (((a) * (b)) >> 16)
+#define STORE2(y, dc, d, c) do { \
+ const int DC = (dc); \
+ STORE(0, y, DC + (d)); \
+ STORE(1, y, DC + (c)); \
+ STORE(2, y, DC - (c)); \
+ STORE(3, y, DC - (d)); \
+} while (0)
+
+#define MUL1(a) ((((a) * 20091) >> 16) + (a))
+#define MUL2(a) (((a) * 35468) >> 16)
static void TransformOne(const int16_t* in, uint8_t* dst) {
int C[4 * 4], *tmp;
@@ -70,8 +44,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) {
for (i = 0; i < 4; ++i) { // vertical pass
const int a = in[0] + in[8]; // [-4096, 4094]
const int b = in[0] - in[8]; // [-4095, 4095]
- const int c = MUL(in[4], kC2) - MUL(in[12], kC1); // [-3783, 3783]
- const int d = MUL(in[4], kC1) + MUL(in[12], kC2); // [-3785, 3781]
+ const int c = MUL2(in[4]) - MUL1(in[12]); // [-3783, 3783]
+ const int d = MUL1(in[4]) + MUL2(in[12]); // [-3785, 3781]
tmp[0] = a + d; // [-7881, 7875]
tmp[1] = b + c; // [-7878, 7878]
tmp[2] = b - c; // [-7878, 7878]
@@ -80,7 +54,7 @@ static void TransformOne(const int16_t* in, uint8_t* dst) {
in++;
}
// Each pass is expanding the dynamic range by ~3.85 (upper bound).
- // The exact value is (2. + (kC1 + kC2) / 65536).
+ // The exact value is (2. + (20091 + 35468) / 65536).
// After the second pass, maximum interval is [-3794, 3794], assuming
// an input in [-2048, 2047] interval. We then need to add a dst value
// in the [0, 255] range.
@@ -91,8 +65,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) {
const int dc = tmp[0] + 4;
const int a = dc + tmp[8];
const int b = dc - tmp[8];
- const int c = MUL(tmp[4], kC2) - MUL(tmp[12], kC1);
- const int d = MUL(tmp[4], kC1) + MUL(tmp[12], kC2);
+ const int c = MUL2(tmp[4]) - MUL1(tmp[12]);
+ const int d = MUL1(tmp[4]) + MUL2(tmp[12]);
STORE(0, 0, a + d);
STORE(1, 0, b + c);
STORE(2, 0, b - c);
@@ -101,7 +75,22 @@ static void TransformOne(const int16_t* in, uint8_t* dst) {
dst += BPS;
}
}
-#undef MUL
+
+// Simplified transform when only in[0], in[1] and in[4] are non-zero
+static void TransformAC3(const int16_t* in, uint8_t* dst) {
+ const int a = in[0] + 4;
+ const int c4 = MUL2(in[4]);
+ const int d4 = MUL1(in[4]);
+ const int c1 = MUL2(in[1]);
+ const int d1 = MUL1(in[1]);
+ STORE2(0, a + d4, d1, c1);
+ STORE2(1, a + c4, d1, c1);
+ STORE2(2, a - c4, d1, c1);
+ STORE2(3, a - d4, d1, c1);
+}
+#undef MUL1
+#undef MUL2
+#undef STORE2
static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) {
TransformOne(in, dst);
@@ -115,7 +104,7 @@ static void TransformUV(const int16_t* in, uint8_t* dst) {
VP8Transform(in + 2 * 16, dst + 4 * BPS, 1);
}
-static void TransformDC(const int16_t *in, uint8_t* dst) {
+static void TransformDC(const int16_t* in, uint8_t* dst) {
const int DC = in[0] + 4;
int i, j;
for (j = 0; j < 4; ++j) {
@@ -126,10 +115,10 @@ static void TransformDC(const int16_t *in, uint8_t* dst) {
}
static void TransformDCUV(const int16_t* in, uint8_t* dst) {
- if (in[0 * 16]) TransformDC(in + 0 * 16, dst);
- if (in[1 * 16]) TransformDC(in + 1 * 16, dst + 4);
- if (in[2 * 16]) TransformDC(in + 2 * 16, dst + 4 * BPS);
- if (in[3 * 16]) TransformDC(in + 3 * 16, dst + 4 * BPS + 4);
+ if (in[0 * 16]) VP8TransformDC(in + 0 * 16, dst);
+ if (in[1 * 16]) VP8TransformDC(in + 1 * 16, dst + 4);
+ if (in[2 * 16]) VP8TransformDC(in + 2 * 16, dst + 4 * BPS);
+ if (in[3 * 16]) VP8TransformDC(in + 3 * 16, dst + 4 * BPS + 4);
}
#undef STORE
@@ -164,16 +153,16 @@ static void TransformWHT(const int16_t* in, int16_t* out) {
}
}
-void (*VP8TransformWHT)(const int16_t* in, int16_t* out) = TransformWHT;
+void (*VP8TransformWHT)(const int16_t* in, int16_t* out);
//------------------------------------------------------------------------------
// Intra predictions
#define DST(x, y) dst[(x) + (y) * BPS]
-static WEBP_INLINE void TrueMotion(uint8_t *dst, int size) {
+static WEBP_INLINE void TrueMotion(uint8_t* dst, int size) {
const uint8_t* top = dst - BPS;
- const uint8_t* const clip0 = clip1 + 255 - top[-1];
+ const uint8_t* const clip0 = VP8kclip1 - top[-1];
int y;
for (y = 0; y < size; ++y) {
const uint8_t* const clip = clip0 + dst[-1];
@@ -184,21 +173,21 @@ static WEBP_INLINE void TrueMotion(uint8_t *dst, int size) {
dst += BPS;
}
}
-static void TM4(uint8_t *dst) { TrueMotion(dst, 4); }
-static void TM8uv(uint8_t *dst) { TrueMotion(dst, 8); }
-static void TM16(uint8_t *dst) { TrueMotion(dst, 16); }
+static void TM4(uint8_t* dst) { TrueMotion(dst, 4); }
+static void TM8uv(uint8_t* dst) { TrueMotion(dst, 8); }
+static void TM16(uint8_t* dst) { TrueMotion(dst, 16); }
//------------------------------------------------------------------------------
// 16x16
-static void VE16(uint8_t *dst) { // vertical
+static void VE16(uint8_t* dst) { // vertical
int j;
for (j = 0; j < 16; ++j) {
memcpy(dst + j * BPS, dst - BPS, 16);
}
}
-static void HE16(uint8_t *dst) { // horizontal
+static void HE16(uint8_t* dst) { // horizontal
int j;
for (j = 16; j > 0; --j) {
memset(dst, dst[-1], 16);
@@ -213,7 +202,7 @@ static WEBP_INLINE void Put16(int v, uint8_t* dst) {
}
}
-static void DC16(uint8_t *dst) { // DC
+static void DC16(uint8_t* dst) { // DC
int DC = 16;
int j;
for (j = 0; j < 16; ++j) {
@@ -222,7 +211,7 @@ static void DC16(uint8_t *dst) { // DC
Put16(DC >> 5, dst);
}
-static void DC16NoTop(uint8_t *dst) { // DC with top samples not available
+static void DC16NoTop(uint8_t* dst) { // DC with top samples not available
int DC = 8;
int j;
for (j = 0; j < 16; ++j) {
@@ -231,7 +220,7 @@ static void DC16NoTop(uint8_t *dst) { // DC with top samples not available
Put16(DC >> 4, dst);
}
-static void DC16NoLeft(uint8_t *dst) { // DC with left samples not available
+static void DC16NoLeft(uint8_t* dst) { // DC with left samples not available
int DC = 8;
int i;
for (i = 0; i < 16; ++i) {
@@ -240,17 +229,19 @@ static void DC16NoLeft(uint8_t *dst) { // DC with left samples not available
Put16(DC >> 4, dst);
}
-static void DC16NoTopLeft(uint8_t *dst) { // DC with no top and left samples
+static void DC16NoTopLeft(uint8_t* dst) { // DC with no top and left samples
Put16(0x80, dst);
}
+VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES];
+
//------------------------------------------------------------------------------
// 4x4
#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
#define AVG2(a, b) (((a) + (b) + 1) >> 1)
-static void VE4(uint8_t *dst) { // vertical
+static void VE4(uint8_t* dst) { // vertical
const uint8_t* top = dst - BPS;
const uint8_t vals[4] = {
AVG3(top[-1], top[0], top[1]),
@@ -264,7 +255,7 @@ static void VE4(uint8_t *dst) { // vertical
}
}
-static void HE4(uint8_t *dst) { // horizontal
+static void HE4(uint8_t* dst) { // horizontal
const int A = dst[-1 - BPS];
const int B = dst[-1];
const int C = dst[-1 + BPS];
@@ -276,7 +267,7 @@ static void HE4(uint8_t *dst) { // horizontal
*(uint32_t*)(dst + 3 * BPS) = 0x01010101U * AVG3(D, E, E);
}
-static void DC4(uint8_t *dst) { // DC
+static void DC4(uint8_t* dst) { // DC
uint32_t dc = 4;
int i;
for (i = 0; i < 4; ++i) dc += dst[i - BPS] + dst[-1 + i * BPS];
@@ -284,7 +275,7 @@ static void DC4(uint8_t *dst) { // DC
for (i = 0; i < 4; ++i) memset(dst + i * BPS, dc, 4);
}
-static void RD4(uint8_t *dst) { // Down-right
+static void RD4(uint8_t* dst) { // Down-right
const int I = dst[-1 + 0 * BPS];
const int J = dst[-1 + 1 * BPS];
const int K = dst[-1 + 2 * BPS];
@@ -295,15 +286,15 @@ static void RD4(uint8_t *dst) { // Down-right
const int C = dst[2 - BPS];
const int D = dst[3 - BPS];
DST(0, 3) = AVG3(J, K, L);
- DST(0, 2) = DST(1, 3) = AVG3(I, J, K);
- DST(0, 1) = DST(1, 2) = DST(2, 3) = AVG3(X, I, J);
- DST(0, 0) = DST(1, 1) = DST(2, 2) = DST(3, 3) = AVG3(A, X, I);
- DST(1, 0) = DST(2, 1) = DST(3, 2) = AVG3(B, A, X);
- DST(2, 0) = DST(3, 1) = AVG3(C, B, A);
- DST(3, 0) = AVG3(D, C, B);
+ DST(1, 3) = DST(0, 2) = AVG3(I, J, K);
+ DST(2, 3) = DST(1, 2) = DST(0, 1) = AVG3(X, I, J);
+ DST(3, 3) = DST(2, 2) = DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
+ DST(3, 2) = DST(2, 1) = DST(1, 0) = AVG3(B, A, X);
+ DST(3, 1) = DST(2, 0) = AVG3(C, B, A);
+ DST(3, 0) = AVG3(D, C, B);
}
-static void LD4(uint8_t *dst) { // Down-Left
+static void LD4(uint8_t* dst) { // Down-Left
const int A = dst[0 - BPS];
const int B = dst[1 - BPS];
const int C = dst[2 - BPS];
@@ -316,12 +307,12 @@ static void LD4(uint8_t *dst) { // Down-Left
DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E);
DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
- DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
- DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
- DST(3, 3) = AVG3(G, H, H);
+ DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
+ DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
+ DST(3, 3) = AVG3(G, H, H);
}
-static void VR4(uint8_t *dst) { // Vertical-Right
+static void VR4(uint8_t* dst) { // Vertical-Right
const int I = dst[-1 + 0 * BPS];
const int J = dst[-1 + 1 * BPS];
const int K = dst[-1 + 2 * BPS];
@@ -343,7 +334,7 @@ static void VR4(uint8_t *dst) { // Vertical-Right
DST(3, 1) = AVG3(B, C, D);
}
-static void VL4(uint8_t *dst) { // Vertical-Left
+static void VL4(uint8_t* dst) { // Vertical-Left
const int A = dst[0 - BPS];
const int B = dst[1 - BPS];
const int C = dst[2 - BPS];
@@ -365,7 +356,7 @@ static void VL4(uint8_t *dst) { // Vertical-Left
DST(3, 3) = AVG3(F, G, H);
}
-static void HU4(uint8_t *dst) { // Horizontal-Up
+static void HU4(uint8_t* dst) { // Horizontal-Up
const int I = dst[-1 + 0 * BPS];
const int J = dst[-1 + 1 * BPS];
const int K = dst[-1 + 2 * BPS];
@@ -380,7 +371,7 @@ static void HU4(uint8_t *dst) { // Horizontal-Up
DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L;
}
-static void HD4(uint8_t *dst) { // Horizontal-Down
+static void HD4(uint8_t* dst) { // Horizontal-Down
const int I = dst[-1 + 0 * BPS];
const int J = dst[-1 + 1 * BPS];
const int K = dst[-1 + 2 * BPS];
@@ -407,17 +398,19 @@ static void HD4(uint8_t *dst) { // Horizontal-Down
#undef AVG3
#undef AVG2
+VP8PredFunc VP8PredLuma4[NUM_BMODES];
+
//------------------------------------------------------------------------------
// Chroma
-static void VE8uv(uint8_t *dst) { // vertical
+static void VE8uv(uint8_t* dst) { // vertical
int j;
for (j = 0; j < 8; ++j) {
memcpy(dst + j * BPS, dst - BPS, 8);
}
}
-static void HE8uv(uint8_t *dst) { // horizontal
+static void HE8uv(uint8_t* dst) { // horizontal
int j;
for (j = 0; j < 8; ++j) {
memset(dst, dst[-1], 8);
@@ -426,60 +419,45 @@ static void HE8uv(uint8_t *dst) { // horizontal
}
// helper for chroma-DC predictions
-static WEBP_INLINE void Put8x8uv(uint64_t v, uint8_t* dst) {
+static WEBP_INLINE void Put8x8uv(uint8_t value, uint8_t* dst) {
int j;
for (j = 0; j < 8; ++j) {
- *(uint64_t*)(dst + j * BPS) = v;
+ memset(dst + j * BPS, value, 8);
}
}
-static void DC8uv(uint8_t *dst) { // DC
+static void DC8uv(uint8_t* dst) { // DC
int dc0 = 8;
int i;
for (i = 0; i < 8; ++i) {
dc0 += dst[i - BPS] + dst[-1 + i * BPS];
}
- Put8x8uv((uint64_t)((dc0 >> 4) * 0x0101010101010101ULL), dst);
+ Put8x8uv(dc0 >> 4, dst);
}
-static void DC8uvNoLeft(uint8_t *dst) { // DC with no left samples
+static void DC8uvNoLeft(uint8_t* dst) { // DC with no left samples
int dc0 = 4;
int i;
for (i = 0; i < 8; ++i) {
dc0 += dst[i - BPS];
}
- Put8x8uv((uint64_t)((dc0 >> 3) * 0x0101010101010101ULL), dst);
+ Put8x8uv(dc0 >> 3, dst);
}
-static void DC8uvNoTop(uint8_t *dst) { // DC with no top samples
+static void DC8uvNoTop(uint8_t* dst) { // DC with no top samples
int dc0 = 4;
int i;
for (i = 0; i < 8; ++i) {
dc0 += dst[-1 + i * BPS];
}
- Put8x8uv((uint64_t)((dc0 >> 3) * 0x0101010101010101ULL), dst);
+ Put8x8uv(dc0 >> 3, dst);
}
-static void DC8uvNoTopLeft(uint8_t *dst) { // DC with nothing
- Put8x8uv(0x8080808080808080ULL, dst);
+static void DC8uvNoTopLeft(uint8_t* dst) { // DC with nothing
+ Put8x8uv(0x80, dst);
}
-//------------------------------------------------------------------------------
-// default C implementations
-
-const VP8PredFunc VP8PredLuma4[NUM_BMODES] = {
- DC4, TM4, VE4, HE4, RD4, VR4, LD4, VL4, HD4, HU4
-};
-
-const VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES] = {
- DC16, TM16, VE16, HE16,
- DC16NoTop, DC16NoLeft, DC16NoTopLeft
-};
-
-const VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES] = {
- DC8uv, TM8uv, VE8uv, HE8uv,
- DC8uvNoTop, DC8uvNoLeft, DC8uvNoTopLeft
-};
+VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES];
//------------------------------------------------------------------------------
// Edge filtering functions
@@ -487,61 +465,62 @@ const VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES] = {
// 4 pixels in, 2 pixels out
static WEBP_INLINE void do_filter2(uint8_t* p, int step) {
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
- const int a = 3 * (q0 - p0) + sclip1[1020 + p1 - q1];
- const int a1 = sclip2[112 + ((a + 4) >> 3)];
- const int a2 = sclip2[112 + ((a + 3) >> 3)];
- p[-step] = clip1[255 + p0 + a2];
- p[ 0] = clip1[255 + q0 - a1];
+ const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1]; // in [-893,892]
+ const int a1 = VP8ksclip2[(a + 4) >> 3]; // in [-16,15]
+ const int a2 = VP8ksclip2[(a + 3) >> 3];
+ p[-step] = VP8kclip1[p0 + a2];
+ p[ 0] = VP8kclip1[q0 - a1];
}
// 4 pixels in, 4 pixels out
static WEBP_INLINE void do_filter4(uint8_t* p, int step) {
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
const int a = 3 * (q0 - p0);
- const int a1 = sclip2[112 + ((a + 4) >> 3)];
- const int a2 = sclip2[112 + ((a + 3) >> 3)];
+ const int a1 = VP8ksclip2[(a + 4) >> 3];
+ const int a2 = VP8ksclip2[(a + 3) >> 3];
const int a3 = (a1 + 1) >> 1;
- p[-2*step] = clip1[255 + p1 + a3];
- p[- step] = clip1[255 + p0 + a2];
- p[ 0] = clip1[255 + q0 - a1];
- p[ step] = clip1[255 + q1 - a3];
+ p[-2*step] = VP8kclip1[p1 + a3];
+ p[- step] = VP8kclip1[p0 + a2];
+ p[ 0] = VP8kclip1[q0 - a1];
+ p[ step] = VP8kclip1[q1 - a3];
}
// 6 pixels in, 6 pixels out
static WEBP_INLINE void do_filter6(uint8_t* p, int step) {
const int p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step];
const int q0 = p[0], q1 = p[step], q2 = p[2*step];
- const int a = sclip1[1020 + 3 * (q0 - p0) + sclip1[1020 + p1 - q1]];
+ const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]];
+ // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9]
const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7
const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7
const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7
- p[-3*step] = clip1[255 + p2 + a3];
- p[-2*step] = clip1[255 + p1 + a2];
- p[- step] = clip1[255 + p0 + a1];
- p[ 0] = clip1[255 + q0 - a1];
- p[ step] = clip1[255 + q1 - a2];
- p[ 2*step] = clip1[255 + q2 - a3];
+ p[-3*step] = VP8kclip1[p2 + a3];
+ p[-2*step] = VP8kclip1[p1 + a2];
+ p[- step] = VP8kclip1[p0 + a1];
+ p[ 0] = VP8kclip1[q0 - a1];
+ p[ step] = VP8kclip1[q1 - a2];
+ p[ 2*step] = VP8kclip1[q2 - a3];
}
static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) {
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
- return (abs0[255 + p1 - p0] > thresh) || (abs0[255 + q1 - q0] > thresh);
+ return (VP8kabs0[p1 - p0] > thresh) || (VP8kabs0[q1 - q0] > thresh);
}
-static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int thresh) {
- const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
- return (2 * abs0[255 + p0 - q0] + abs1[255 + p1 - q1]) <= thresh;
+static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) {
+ const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
+ return ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) <= t);
}
static WEBP_INLINE int needs_filter2(const uint8_t* p,
int step, int t, int it) {
- const int p3 = p[-4*step], p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step];
- const int q0 = p[0], q1 = p[step], q2 = p[2*step], q3 = p[3*step];
- if ((2 * abs0[255 + p0 - q0] + abs1[255 + p1 - q1]) > t)
- return 0;
- return abs0[255 + p3 - p2] <= it && abs0[255 + p2 - p1] <= it &&
- abs0[255 + p1 - p0] <= it && abs0[255 + q3 - q2] <= it &&
- abs0[255 + q2 - q1] <= it && abs0[255 + q1 - q0] <= it;
+ const int p3 = p[-4 * step], p2 = p[-3 * step], p1 = p[-2 * step];
+ const int p0 = p[-step], q0 = p[0];
+ const int q1 = p[step], q2 = p[2 * step], q3 = p[3 * step];
+ if ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) > t) return 0;
+ return VP8kabs0[p3 - p2] <= it && VP8kabs0[p2 - p1] <= it &&
+ VP8kabs0[p1 - p0] <= it && VP8kabs0[q3 - q2] <= it &&
+ VP8kabs0[q2 - q1] <= it && VP8kabs0[q1 - q0] <= it;
}
//------------------------------------------------------------------------------
@@ -549,8 +528,9 @@ static WEBP_INLINE int needs_filter2(const uint8_t* p,
static void SimpleVFilter16(uint8_t* p, int stride, int thresh) {
int i;
+ const int thresh2 = 2 * thresh + 1;
for (i = 0; i < 16; ++i) {
- if (needs_filter(p + i, stride, thresh)) {
+ if (needs_filter(p + i, stride, thresh2)) {
do_filter2(p + i, stride);
}
}
@@ -558,8 +538,9 @@ static void SimpleVFilter16(uint8_t* p, int stride, int thresh) {
static void SimpleHFilter16(uint8_t* p, int stride, int thresh) {
int i;
+ const int thresh2 = 2 * thresh + 1;
for (i = 0; i < 16; ++i) {
- if (needs_filter(p + i * stride, 1, thresh)) {
+ if (needs_filter(p + i * stride, 1, thresh2)) {
do_filter2(p + i * stride, 1);
}
}
@@ -587,8 +568,9 @@ static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) {
static WEBP_INLINE void FilterLoop26(uint8_t* p,
int hstride, int vstride, int size,
int thresh, int ithresh, int hev_thresh) {
+ const int thresh2 = 2 * thresh + 1;
while (size-- > 0) {
- if (needs_filter2(p, hstride, thresh, ithresh)) {
+ if (needs_filter2(p, hstride, thresh2, ithresh)) {
if (hev(p, hstride, hev_thresh)) {
do_filter2(p, hstride);
} else {
@@ -602,8 +584,9 @@ static WEBP_INLINE void FilterLoop26(uint8_t* p,
static WEBP_INLINE void FilterLoop24(uint8_t* p,
int hstride, int vstride, int size,
int thresh, int ithresh, int hev_thresh) {
+ const int thresh2 = 2 * thresh + 1;
while (size-- > 0) {
- if (needs_filter2(p, hstride, thresh, ithresh)) {
+ if (needs_filter2(p, hstride, thresh2, ithresh)) {
if (hev(p, hstride, hev_thresh)) {
do_filter2(p, hstride);
} else {
@@ -672,6 +655,7 @@ static void HFilter8i(uint8_t* u, uint8_t* v, int stride,
//------------------------------------------------------------------------------
VP8DecIdct2 VP8Transform;
+VP8DecIdct VP8TransformAC3;
VP8DecIdct VP8TransformUV;
VP8DecIdct VP8TransformDC;
VP8DecIdct VP8TransformDCUV;
@@ -690,15 +674,25 @@ VP8SimpleFilterFunc VP8SimpleVFilter16i;
VP8SimpleFilterFunc VP8SimpleHFilter16i;
extern void VP8DspInitSSE2(void);
+extern void VP8DspInitSSE41(void);
extern void VP8DspInitNEON(void);
+extern void VP8DspInitMIPS32(void);
+extern void VP8DspInitMIPSdspR2(void);
+
+static volatile VP8CPUInfo dec_last_cpuinfo_used =
+ (VP8CPUInfo)&dec_last_cpuinfo_used;
-void VP8DspInit(void) {
- DspInitTables();
+WEBP_TSAN_IGNORE_FUNCTION void VP8DspInit(void) {
+ if (dec_last_cpuinfo_used == VP8GetCPUInfo) return;
+ VP8InitClipTables();
+
+ VP8TransformWHT = TransformWHT;
VP8Transform = TransformTwo;
VP8TransformUV = TransformUV;
VP8TransformDC = TransformDC;
VP8TransformDCUV = TransformDCUV;
+ VP8TransformAC3 = TransformAC3;
VP8VFilter16 = VFilter16;
VP8HFilter16 = HFilter16;
@@ -713,20 +707,60 @@ void VP8DspInit(void) {
VP8SimpleVFilter16i = SimpleVFilter16i;
VP8SimpleHFilter16i = SimpleHFilter16i;
+ VP8PredLuma4[0] = DC4;
+ VP8PredLuma4[1] = TM4;
+ VP8PredLuma4[2] = VE4;
+ VP8PredLuma4[3] = HE4;
+ VP8PredLuma4[4] = RD4;
+ VP8PredLuma4[5] = VR4;
+ VP8PredLuma4[6] = LD4;
+ VP8PredLuma4[7] = VL4;
+ VP8PredLuma4[8] = HD4;
+ VP8PredLuma4[9] = HU4;
+
+ VP8PredLuma16[0] = DC16;
+ VP8PredLuma16[1] = TM16;
+ VP8PredLuma16[2] = VE16;
+ VP8PredLuma16[3] = HE16;
+ VP8PredLuma16[4] = DC16NoTop;
+ VP8PredLuma16[5] = DC16NoLeft;
+ VP8PredLuma16[6] = DC16NoTopLeft;
+
+ VP8PredChroma8[0] = DC8uv;
+ VP8PredChroma8[1] = TM8uv;
+ VP8PredChroma8[2] = VE8uv;
+ VP8PredChroma8[3] = HE8uv;
+ VP8PredChroma8[4] = DC8uvNoTop;
+ VP8PredChroma8[5] = DC8uvNoLeft;
+ VP8PredChroma8[6] = DC8uvNoTopLeft;
+
// If defined, use CPUInfo() to overwrite some pointers with faster versions.
- if (VP8GetCPUInfo) {
+ if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_SSE2)
if (VP8GetCPUInfo(kSSE2)) {
VP8DspInitSSE2();
+#if defined(WEBP_USE_SSE41)
+ if (VP8GetCPUInfo(kSSE4_1)) {
+ VP8DspInitSSE41();
+ }
+#endif
}
-#elif defined(WEBP_USE_NEON)
+#endif
+#if defined(WEBP_USE_NEON)
if (VP8GetCPUInfo(kNEON)) {
VP8DspInitNEON();
}
#endif
+#if defined(WEBP_USE_MIPS32)
+ if (VP8GetCPUInfo(kMIPS32)) {
+ VP8DspInitMIPS32();
+ }
+#endif
+#if defined(WEBP_USE_MIPS_DSP_R2)
+ if (VP8GetCPUInfo(kMIPSdspR2)) {
+ VP8DspInitMIPSdspR2();
+ }
+#endif
}
+ dec_last_cpuinfo_used = VP8GetCPUInfo;
}
-
-#if defined(__cplusplus) || defined(c_plusplus)
-} // extern "C"
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-21 01:54:52 +0000