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GPU: Add support for the DXT23 and DXT45 compressed texture formats.

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This commit is contained in:
Subv 2018-04-18 20:48:53 -05:00
parent 60e6e8953e
commit 057170928c
3 changed files with 35 additions and 28 deletions
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10
src/video_core/textures/decoders.cpp
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@ -48,6 +48,10 @@ u32 BytesPerPixel(TextureFormat format) {
case TextureFormat::DXT1:
// In this case a 'pixel' actually refers to a 4x4 tile.
return 8;
case TextureFormat::DXT23:
case TextureFormat::DXT45:
// In this case a 'pixel' actually refers to a 4x4 tile.
return 16;
case TextureFormat::A8R8G8B8:
return 4;
case TextureFormat::B5G6R5:
@ -67,7 +71,9 @@ std::vector<u8> UnswizzleTexture(VAddr address, TextureFormat format, u32 width,
switch (format) {
case TextureFormat::DXT1:
// In the DXT1 format, each 4x4 tile is swizzled instead of just individual pixel values.
case TextureFormat::DXT23:
case TextureFormat::DXT45:
// In the DXT formats, each 4x4 tile is swizzled instead of just individual pixel values.
CopySwizzledData(width / 4, height / 4, bytes_per_pixel, bytes_per_pixel, data,
unswizzled_data.data(), true, block_height);
break;
@ -91,6 +97,8 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
// TODO(Subv): Implement.
switch (format) {
case TextureFormat::DXT1:
case TextureFormat::DXT23:
case TextureFormat::DXT45:
case TextureFormat::A8R8G8B8:
case TextureFormat::B5G6R5:
// TODO(Subv): For the time being just forward the same data without any decoding.