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videocore: Added RG8 texture support

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This commit is contained in:
Patrick Martin 2015-05-14 13:39:46 -07:00 committed by Yuri Kunde Schlesner
parent 882040fde7
commit 5b65d95310
3 changed files with 26 additions and 1 deletions
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18
src/common/color.h
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@ -68,6 +68,15 @@ inline const Math::Vec4<u8> DecodeRGB8(const u8* bytes) {
return { bytes[2], bytes[1], bytes[0], 255 };
}
/**
* Decode a color stored in RG8 (aka HILO8) format
* @param bytes Pointer to encoded source color
* @return Result color decoded as Math::Vec4<u8>
*/
inline const Math::Vec4<u8> DecodeRG8(const u8* bytes) {
return { bytes[1], bytes[0], 0, 255 };
}
/**
* Decode a color stored in RGB565 format
* @param bytes Pointer to encoded source color
@ -151,6 +160,15 @@ inline void EncodeRGB8(const Math::Vec4<u8>& color, u8* bytes) {
bytes[0] = color.b();
}
/**
* Encode a color as RG8 (aka HILO8) format
* @param color Source color to encode
* @param bytes Destination pointer to store encoded color
*/
inline void EncodeRG8(const Math::Vec4<u8>& color, u8* bytes) {
bytes[1] = color.r();
bytes[0] = color.g();
}
/**
* Encode a color as RGB565 format
* @param color Source color to encode

6
src/video_core/debug_utils/debug_utils.cpp
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@ -359,6 +359,12 @@ const Math::Vec4<u8> LookupTexture(const u8* source, int x, int y, const Texture
}
}
case Regs::TextureFormat::RG8:
{
auto res = Color::DecodeRG8(source + VideoCore::GetMortonOffset(x, y, 2));
return { res.r(), res.g(), 0, 255 };
}
case Regs::TextureFormat::I8:
{
const u8* source_ptr = source + VideoCore::GetMortonOffset(x, y, 1);

3
src/video_core/pica.h
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@ -163,7 +163,7 @@ struct Regs {
RGB565 = 3,
RGBA4 = 4,
IA8 = 5,
RG8 = 6, ///< @note Also called HILO8 in 3DBrew.
I8 = 7,
A8 = 8,
IA4 = 9,
@ -204,6 +204,7 @@ struct Regs {
case TextureFormat::RGB565:
case TextureFormat::RGBA4:
case TextureFormat::IA8:
case TextureFormat::RG8:
return 4;
case TextureFormat::I4: