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GPU: Implemented the DXN1 (BC4) texture format.

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This commit is contained in:
Subv 2018-06-02 13:17:09 -05:00
parent bbbe34429e
commit 99f9d47d16
3 changed files with 16 additions and 3 deletions
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6
src/video_core/textures/decoders.cpp
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@ -46,6 +46,7 @@ void CopySwizzledData(u32 width, u32 height, u32 bytes_per_pixel, u32 out_bytes_
u32 BytesPerPixel(TextureFormat format) {
switch (format) {
case TextureFormat::DXT1:
case TextureFormat::DXN1:
// In this case a 'pixel' actually refers to a 4x4 tile.
return 8;
case TextureFormat::DXT23:
@ -79,7 +80,9 @@ std::vector<u8> UnswizzleTexture(VAddr address, TextureFormat format, u32 width,
case TextureFormat::DXT1:
case TextureFormat::DXT23:
case TextureFormat::DXT45:
// In the DXT formats, each 4x4 tile is swizzled instead of just individual pixel values.
case TextureFormat::DXN1:
// In the DXT and DXN 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;
@ -109,6 +112,7 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
case TextureFormat::DXT1:
case TextureFormat::DXT23:
case TextureFormat::DXT45:
case TextureFormat::DXN1:
case TextureFormat::A8R8G8B8:
case TextureFormat::A2B10G10R10:
case TextureFormat::A1B5G5R5: