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[PICA] More textures. Upstream should also build now

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This commit is contained in:
wheremyfoodat 2023-02-01 01:53:51 +02:00
parent 51130b295a
commit ccdab41c28
5 changed files with 66 additions and 36 deletions
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67
src/core/renderer_gl/textures.cpp
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@ -2,7 +2,7 @@
#include "colour.hpp"
void Texture::allocate() {
Helpers::panic("Tried to allocate texture");
printf("Tried to allocate texture\n");
}
void Texture::free() {
@ -16,40 +16,40 @@ u64 Texture::sizeInBytes() {
u64 pixelCount = u64(size.x()) * u64(size.y());
switch (format) {
case Formats::RGBA8: // 4 bytes per pixel
return pixelCount * 4;
case Formats::RGBA8: // 4 bytes per pixel
return pixelCount * 4;
case Formats::RGB8: // 3 bytes per pixel
return pixelCount * 3;
case Formats::RGB8: // 3 bytes per pixel
return pixelCount * 3;
case Formats::RGBA5551: // 2 bytes per pixel
case Formats::RGB565:
case Formats::RGBA4:
case Formats::RG8:
case Formats::IA8:
return pixelCount * 2;
case Formats::RGBA5551: // 2 bytes per pixel
case Formats::RGB565:
case Formats::RGBA4:
case Formats::RG8:
case Formats::IA8:
return pixelCount * 2;
case Formats::A8: // 1 byte per pixel
case Formats::I8:
case Formats::IA4:
return pixelCount;
case Formats::A8: // 1 byte per pixel
case Formats::I8:
case Formats::IA4:
return pixelCount;
case Formats::I4: // 4 bits per pixel
case Formats::A4:
return pixelCount / 2;
case Formats::I4: // 4 bits per pixel
case Formats::A4:
return pixelCount / 2;
case Formats::ETC1: // Compressed formats
case Formats::ETC1A4: {
// Number of 8x8 tiles
const u64 tileCount = pixelCount / 64;
// Each 8x8 consists of 4 4x4 tiles, which are 8 bytes each on ETC1 and 16 bytes each on ETC1A4
const u64 tileSize = 4 * (format == Formats::ETC1 ? 8 : 16);
return tileCount * tileSize;
}
case Formats::ETC1: // Compressed formats
case Formats::ETC1A4: {
// Number of 4x4 tiles
const u64 tileCount = pixelCount / 16;
// Tiles are 8 bytes each on ETC1 and 16 bytes each on ETC1A4
const u64 tileSize = format == Formats::ETC1 ? 8 : 16;
return tileCount * tileSize;
}
default:
Helpers::panic("[PICA] Attempted to get size of invalid texture type");
}
default:
Helpers::panic("[PICA] Attempted to get size of invalid texture type");
}
}
// u and v are the UVs of the relevant texel
@ -73,11 +73,14 @@ u32 Texture::getSwizzledOffset(u32 u, u32 v, u32 width, u32 bytesPerPixel) {
return offset * bytesPerPixel;
}
u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, void* data) {
// Get the texel at position (u, v)
// fmt: format of the texture
// data: texture data of the texture
u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, const void* data) {
switch (fmt) {
case Formats::RGBA4: {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u8* ptr = static_cast<u8*>(data);
auto ptr = static_cast<const u8*>(data);
u16 texel = u16(ptr[offset]) | (u16(ptr[offset + 1]) << 8);
u8 alpha = Colour::convert4To8Bit(texel & 0xf);
@ -93,7 +96,7 @@ u32 Texture::decodeTexel(u32 u, u32 v, Texture::Formats fmt, void* data) {
}
}
void Texture::decodeTexture(void* data) {
void Texture::decodeTexture(const void* data) {
std::vector<u32> decoded;
decoded.reserve(size.u() * size.v());