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[PICA] Add ETC1 and ETC1A4 support

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This commit is contained in:
wheremyfoodat 2023-03-01 01:42:46 +02:00
parent 421f9acd11
commit 0cd3f581d3
4 changed files with 129 additions and 2 deletions
src/core/renderer_gl
textures.cpp

4
src/core/renderer_gl/textures.cpp
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@ -85,7 +85,6 @@ u32 Texture::getSwizzledOffset(u32 u, u32 v, u32 width, u32 bytesPerPixel) {
// data: texture data of the texture
u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, const void* data) {
switch (fmt) {
case Formats::ETC1A4:
case Formats::RGBA4: {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
auto ptr = static_cast<const u8*>(data);
@ -167,6 +166,9 @@ u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, const void* data) {
return (alpha << 24) | (intensity << 16) | (intensity << 8) | intensity;
}
case Formats::ETC1: return getTexelETC(false, u, v, size.u(), data);
case Formats::ETC1A4: return getTexelETC(true, u, v, size.u(), data);
default:
Helpers::panic("[Texture::DecodeTexel] Unimplemented format = %d", static_cast<int>(fmt));
}