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wheremyfoodat 2025-03-14 12:38:09 +02:00
parent 67f0388eae
commit c061bb7b47
7 changed files with 182 additions and 180 deletions
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224
src/core/renderer_mtl/texture_decoder.cpp
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@ -3,8 +3,8 @@
#include <array>
#include <string>
#include "math_util.hpp"
#include "colour.hpp"
#include "math_util.hpp"
using namespace Helpers;
@ -38,187 +38,185 @@ u32 getSwizzledOffset_4bpp(u32 u, u32 v, u32 width) {
}
void decodeTexelABGR8ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 4);
const u8 alpha = inData[offset];
const u8 b = inData[offset + 1];
const u8 g = inData[offset + 2];
const u8 r = inData[offset + 3];
const u32 offset = getSwizzledOffset(u, v, size.u(), 4);
const u8 alpha = inData[offset];
const u8 b = inData[offset + 1];
const u8 g = inData[offset + 2];
const u8 r = inData[offset + 3];
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
}
void decodeTexelBGR8ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 3);
const u8 b = inData[offset];
const u8 g = inData[offset + 1];
const u8 r = inData[offset + 2];
const u32 offset = getSwizzledOffset(u, v, size.u(), 3);
const u8 b = inData[offset];
const u8 g = inData[offset + 1];
const u8 r = inData[offset + 2];
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(0xff);
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(0xff);
}
void decodeTexelA1BGR5ToBGR5A1(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u8 alpha = getBit<0>(texel);
u8 b = getBits<1, 5, u8>(texel);
u8 g = getBits<6, 5, u8>(texel);
u8 r = getBits<11, 5, u8>(texel);
u8 alpha = getBit<0>(texel);
u8 b = getBits<1, 5, u8>(texel);
u8 g = getBits<6, 5, u8>(texel);
u8 r = getBits<11, 5, u8>(texel);
u16 outTexel = (alpha << 15) | (r << 10) | (g << 5) | b;
outData.push_back(outTexel & 0xff);
outData.push_back((outTexel >> 8) & 0xff);
u16 outTexel = (alpha << 15) | (r << 10) | (g << 5) | b;
outData.push_back(outTexel & 0xff);
outData.push_back((outTexel >> 8) & 0xff);
}
void decodeTexelA1BGR5ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u8 alpha = getBit<0>(texel) ? 0xff : 0;
u8 b = Colour::convert5To8Bit(getBits<1, 5, u8>(texel));
u8 g = Colour::convert5To8Bit(getBits<6, 5, u8>(texel));
u8 r = Colour::convert5To8Bit(getBits<11, 5, u8>(texel));
u8 alpha = getBit<0>(texel) ? 0xff : 0;
u8 b = Colour::convert5To8Bit(getBits<1, 5, u8>(texel));
u8 g = Colour::convert5To8Bit(getBits<6, 5, u8>(texel));
u8 r = Colour::convert5To8Bit(getBits<11, 5, u8>(texel));
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
}
void decodeTexelB5G6R5ToB5G6R5(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
outData.push_back(texel & 0xff);
outData.push_back((texel >> 8) & 0xff);
outData.push_back(texel & 0xff);
outData.push_back((texel >> 8) & 0xff);
}
void decodeTexelB5G6R5ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
const u32 offset = getSwizzledOffset(u, v, size.u(), 2);
const u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
const u8 b = Colour::convert5To8Bit(getBits<0, 5, u8>(texel));
const u8 g = Colour::convert6To8Bit(getBits<5, 6, u8>(texel));
const u8 r = Colour::convert5To8Bit(getBits<11, 5, u8>(texel));
const u8 b = Colour::convert5To8Bit(getBits<0, 5, u8>(texel));
const u8 g = Colour::convert6To8Bit(getBits<5, 6, u8>(texel));
const u8 r = Colour::convert5To8Bit(getBits<11, 5, u8>(texel));
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(0xff);
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(0xff);
}
void decodeTexelABGR4ToABGR4(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u8 alpha = getBits<0, 4, u8>(texel);
u8 b = getBits<4, 4, u8>(texel);
u8 g = getBits<8, 4, u8>(texel);
u8 r = getBits<12, 4, u8>(texel);
u8 alpha = getBits<0, 4, u8>(texel);
u8 b = getBits<4, 4, u8>(texel);
u8 g = getBits<8, 4, u8>(texel);
u8 r = getBits<12, 4, u8>(texel);
outData.push_back((b << 4) | alpha);
outData.push_back((r << 4) | g);
outData.push_back((b << 4) | alpha);
outData.push_back((r << 4) | g);
}
void decodeTexelABGR4ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u16 texel = u16(inData[offset]) | (u16(inData[offset + 1]) << 8);
u8 alpha = Colour::convert4To8Bit(getBits<0, 4, u8>(texel));
u8 b = Colour::convert4To8Bit(getBits<4, 4, u8>(texel));
u8 g = Colour::convert4To8Bit(getBits<8, 4, u8>(texel));
u8 r = Colour::convert4To8Bit(getBits<12, 4, u8>(texel));
u8 alpha = Colour::convert4To8Bit(getBits<0, 4, u8>(texel));
u8 b = Colour::convert4To8Bit(getBits<4, 4, u8>(texel));
u8 g = Colour::convert4To8Bit(getBits<8, 4, u8>(texel));
u8 r = Colour::convert4To8Bit(getBits<12, 4, u8>(texel));
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
outData.push_back(r);
outData.push_back(g);
outData.push_back(b);
outData.push_back(alpha);
}
void decodeTexelAI8ToRG8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
// Same as I8 except each pixel gets its own alpha value too
const u8 alpha = inData[offset];
const u8 intensity = inData[offset + 1];
// Same as I8 except each pixel gets its own alpha value too
const u8 alpha = inData[offset];
const u8 intensity = inData[offset + 1];
outData.push_back(intensity);
outData.push_back(alpha);
outData.push_back(intensity);
outData.push_back(alpha);
}
void decodeTexelGR8ToRG8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
constexpr u8 b = 0;
const u8 g = inData[offset];
const u8 r = inData[offset + 1];
u32 offset = getSwizzledOffset(u, v, size.u(), 2);
constexpr u8 b = 0;
const u8 g = inData[offset];
const u8 r = inData[offset + 1];
outData.push_back(r);
outData.push_back(g);
outData.push_back(r);
outData.push_back(g);
}
void decodeTexelI8ToR8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 intensity = inData[offset];
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 intensity = inData[offset];
outData.push_back(intensity);
outData.push_back(intensity);
}
void decodeTexelA8ToA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 alpha = inData[offset];
u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 alpha = inData[offset];
outData.push_back(alpha);
outData.push_back(alpha);
}
void decodeTexelAI4ToABGR4(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 texel = inData[offset];
const u8 alpha = texel & 0xf;
const u8 intensity = texel >> 4;
const u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 texel = inData[offset];
const u8 alpha = texel & 0xf;
const u8 intensity = texel >> 4;
outData.push_back((intensity << 4) | intensity);
outData.push_back((alpha << 4) | intensity);
outData.push_back((intensity << 4) | intensity);
outData.push_back((alpha << 4) | intensity);
}
void decodeTexelAI4ToRG8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 texel = inData[offset];
const u8 alpha = Colour::convert4To8Bit(texel & 0xf);
const u8 intensity = Colour::convert4To8Bit(texel >> 4);
const u32 offset = getSwizzledOffset(u, v, size.u(), 1);
const u8 texel = inData[offset];
const u8 alpha = Colour::convert4To8Bit(texel & 0xf);
const u8 intensity = Colour::convert4To8Bit(texel >> 4);
outData.push_back(intensity);
outData.push_back(alpha);
outData.push_back(intensity);
outData.push_back(alpha);
}
void decodeTexelI4ToR8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
u32 offset = getSwizzledOffset_4bpp(u, v, size.u());
u32 offset = getSwizzledOffset_4bpp(u, v, size.u());
// For odd U coordinates, grab the top 4 bits, and the low 4 bits for even coordinates
u8 intensity = inData[offset] >> ((u % 2) ? 4 : 0);
intensity = Colour::convert4To8Bit(getBits<0, 4>(intensity));
// For odd U coordinates, grab the top 4 bits, and the low 4 bits for even coordinates
u8 intensity = inData[offset] >> ((u % 2) ? 4 : 0);
intensity = Colour::convert4To8Bit(getBits<0, 4>(intensity));
outData.push_back(intensity);
outData.push_back(intensity);
}
void decodeTexelA4ToA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
const u32 offset = getSwizzledOffset_4bpp(u, v, size.u());
const u32 offset = getSwizzledOffset_4bpp(u, v, size.u());
// For odd U coordinates, grab the top 4 bits, and the low 4 bits for even coordinates
u8 alpha = inData[offset] >> ((u % 2) ? 4 : 0);
alpha = Colour::convert4To8Bit(getBits<0, 4>(alpha));
// For odd U coordinates, grab the top 4 bits, and the low 4 bits for even coordinates
u8 alpha = inData[offset] >> ((u % 2) ? 4 : 0);
alpha = Colour::convert4To8Bit(getBits<0, 4>(alpha));
outData.push_back(alpha);
outData.push_back(alpha);
}
static constexpr u32 signExtend3To32(u32 val) {
return (u32)(s32(val) << 29 >> 29);
}
static constexpr u32 signExtend3To32(u32 val) { return (u32)(s32(val) << 29 >> 29); }
void decodeETC(u32 u, u32 v, u64 colourData, u32 alpha, std::vector<u8>& outData) {
static constexpr u32 modifiers[8][2] = {
@ -328,9 +326,9 @@ void getTexelETC(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, s
}
void decodeTexelETC1ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
getTexelETC<false>(size, u, v, inData, outData);
getTexelETC<false>(size, u, v, inData, outData);
}
void decodeTexelETC1A4ToRGBA8(OpenGL::uvec2 size, u32 u, u32 v, std::span<const u8> inData, std::vector<u8>& outData) {
getTexelETC<true>(size, u, v, inData, outData);
getTexelETC<true>(size, u, v, inData, outData);
}