diff options
Diffstat (limited to 'thirdparty/squish/Add-Decompress-Bc5-to-Squish.patch')
-rw-r--r-- | thirdparty/squish/Add-Decompress-Bc5-to-Squish.patch | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/thirdparty/squish/Add-Decompress-Bc5-to-Squish.patch b/thirdparty/squish/Add-Decompress-Bc5-to-Squish.patch deleted file mode 100644 index 1e06a8d318..0000000000 --- a/thirdparty/squish/Add-Decompress-Bc5-to-Squish.patch +++ /dev/null @@ -1,143 +0,0 @@ -From 7b64cc4c8b0be0443741483bf65909f5140179c0 Mon Sep 17 00:00:00 2001 -From: Orkun <orkuntezerm@gmail.com> -Date: Sun, 19 Nov 2017 02:24:31 +0300 -Subject: [PATCH] Fix #12220: Add Decompress Bc5 to Squish - -This Commit fixes the corrupted file preview described in #12220. -Added DecompressColourBc5 function to squish. ---- - thirdparty/squish/colourblock.cpp | 85 +++++++++++++++++++++++++++++++++++++++ - thirdparty/squish/colourblock.h | 3 ++ - thirdparty/squish/squish.cpp | 8 +++- - 3 files changed, 95 insertions(+), 1 deletion(-) - -diff --git a/thirdparty/squish/colourblock.cpp b/thirdparty/squish/colourblock.cpp -index af8b98036..3de46382c 100644 ---- a/thirdparty/squish/colourblock.cpp -+++ b/thirdparty/squish/colourblock.cpp -@@ -211,4 +211,89 @@ void DecompressColour( u8* rgba, void const* block, bool isDxt1 ) - } - } - -+// -- Godot start -- -+void DecompressColourBc5( u8* rgba, void const* block) -+{ -+ // get the block bytes -+ u8 const* bytes = reinterpret_cast< u8 const* >( block ); -+ -+ // unpack the endpoints -+ u8 codes[16]; -+ int red_0 = bytes[0]; -+ int red_1 = bytes[1]; -+ -+ codes[0] = red_0; -+ codes[1] = red_1; -+ codes[6] = 0.0f; -+ codes[7] = 1.0f; -+ // generate the midpoints -+ if(red_0 > red_1) -+ { -+ for( int i = 2; i < 8; ++i ) -+ { -+ codes[i] = ((8-i)*red_0 + (i-1)*red_1)/7; -+ } -+ } -+ else -+ { -+ for( int i = 2; i < 6; ++i ) -+ { -+ codes[i] = ((6-i)*red_0 + (i-1)*red_1)/5; -+ } -+ } -+ -+ int green_0 = bytes[8]; -+ int green_1 = bytes[9]; -+ -+ codes[0 + 8] = green_0; -+ codes[1 + 8] = green_1; -+ codes[6 + 8] = 0.0f; -+ codes[7 + 8] = 1.0f; -+ // generate the midpoints -+ if(green_0 > green_1) -+ { -+ for( int i = 2; i < 8; ++i ) -+ { -+ codes[i + 8] = ((8-i)*green_0 + (i-1)*green_1)/7; -+ } -+ } -+ else -+ { -+ for( int i = 2; i < 6; ++i ) -+ { -+ codes[i + 8] = ((6-i)*green_0 + (i-1)*green_1)/5; -+ } -+ } -+ -+ u8 indices[32]; -+ for( int i = 0; i < 4; ++i ) -+ { -+ u8 packed = bytes[2 + i]; -+ u8* red_ind = indices + 4*i; -+ -+ red_ind[0] = packed & 0x3; -+ red_ind[1] = ( packed >> 2 ) & 0x3; -+ red_ind[2] = ( packed >> 4 ) & 0x3; -+ red_ind[3] = ( packed >> 6 ) & 0x3; -+ -+ packed = bytes[8 + i]; -+ u8* green_ind = indices + 4*i + 16; -+ green_ind[0] = packed & 0x3; -+ green_ind[1] = ( packed >> 2 ) & 0x3; -+ green_ind[2] = ( packed >> 4 ) & 0x3; -+ green_ind[3] = ( packed >> 6 ) & 0x3; -+ } -+ -+ // store out the colours -+ for( int i = 0; i < 16; ++i ) -+ { -+ rgba[4*i] = codes[indices[i]]; -+ rgba[4*i +1] = codes[indices[i + 16] + 8]; -+ rgba[4*i +2] = 0; -+ rgba[4*i +3] = 255; -+ } -+} -+// -- GODOT end -- -+ -+ - } // namespace squish -diff --git a/thirdparty/squish/colourblock.h b/thirdparty/squish/colourblock.h -index fee2cd7c5..3cb9b7e3b 100644 ---- a/thirdparty/squish/colourblock.h -+++ b/thirdparty/squish/colourblock.h -@@ -35,6 +35,9 @@ void WriteColourBlock3( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* - void WriteColourBlock4( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* block ); - - void DecompressColour( u8* rgba, void const* block, bool isDxt1 ); -+// -- GODOT start -- -+void DecompressColourBc5( u8* rgba, void const* block ); -+// -- GODOT end -- - - } // namespace squish - -diff --git a/thirdparty/squish/squish.cpp b/thirdparty/squish/squish.cpp -index 1d22a64ad..fd11a147d 100644 ---- a/thirdparty/squish/squish.cpp -+++ b/thirdparty/squish/squish.cpp -@@ -135,7 +135,13 @@ void Decompress( u8* rgba, void const* block, int flags ) - colourBlock = reinterpret_cast< u8 const* >( block ) + 8; - - // decompress colour -- DecompressColour( rgba, colourBlock, ( flags & kDxt1 ) != 0 ); -+ // -- GODOT start -- -+ //DecompressColour( rgba, colourBlock, ( flags & kDxt1 ) != 0 ); -+ if(( flags & ( kBc5 ) ) != 0) -+ DecompressColourBc5( rgba, colourBlock); -+ else -+ DecompressColour( rgba, colourBlock, ( flags & kDxt1 ) != 0 ); -+ // -- GODOT end -- - - // decompress alpha separately if necessary - if( ( flags & kDxt3 ) != 0 ) --- -2.13.6 - |