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[PICA] Add IA4 texture format

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This commit is contained in:
wheremyfoodat
2023-02-28 02:00:52 +02:00
parent 19c55b3967
commit 93ba95483b
1 changed files with 12 additions and 0 deletions
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12
src/core/renderer_gl/textures.cpp
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@@ -136,6 +136,18 @@ u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, const void* data) {
return (alpha << 24) | (b << 16) | (g << 8) | r;
}
case Formats::IA4: {
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
auto ptr = static_cast<const u8*>(data);
const u8 texel = ptr[offset];
const u8 alpha = Colour::convert4To8Bit(texel & 0xf);
const u8 intensity = Colour::convert4To8Bit(texel >> 4);
// Intensity formats just copy the intensity value to every colour channel
return (alpha << 24) | (intensity << 16) | (intensity << 8) | intensity;
}
case Formats::I8: {
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
auto ptr = static_cast<const u8*>(data);