archives/gates_of_skeldal
2
0
Fork 0
mirror of https://github.com/ondra-novak/gates_of_skeldal.git synced 2025-07-05 14:10:27 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

version, more pixel formats, detect native format

Browse source
This commit is contained in:
Ondřej Novák 2025-05-04 18:47:04 +02:00
parent 5643814710
commit 8e5a26011d
6 changed files with 381 additions and 106 deletions
Download patch file Download diff file Expand all files Collapse all files

182
platform/sdl/format_mapping.h Normal file
View file

@ -0,0 +1,182 @@
#pragma once
#include <SDL_pixels.h>
template<Uint32 format>
struct FormatMapping;
template<>
struct FormatMapping<SDL_PIXELFORMAT_ARGB2101010> {
static constexpr int RShift = 20;
static constexpr int GShift = 10;
static constexpr int BShift = 0;
static constexpr int AShift = 30;
static constexpr int RBits = 10;
static constexpr int GBits = 10;
static constexpr int BBits = 10;
static constexpr int ABits = 2;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ABGR8888> {
static constexpr int RShift = 0;
static constexpr int GShift = 8;
static constexpr int BShift = 16;
static constexpr int AShift = 24;
static constexpr int RBits = 8;
static constexpr int GBits = 8;
static constexpr int BBits = 8;
static constexpr int ABits = 8;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ARGB8888> {
static constexpr int RShift = 16;
static constexpr int GShift = 8;
static constexpr int BShift = 0;
static constexpr int AShift = 24;
static constexpr int RBits = 8;
static constexpr int GBits = 8;
static constexpr int BBits = 8;
static constexpr int ABits = 8;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_RGBA8888> {
static constexpr int RShift = 24;
static constexpr int GShift = 16;
static constexpr int BShift = 8;
static constexpr int AShift = 0;
static constexpr int RBits = 8;
static constexpr int GBits = 8;
static constexpr int BBits = 8;
static constexpr int ABits = 8;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_BGRA8888> {
static constexpr int RShift = 8;
static constexpr int GShift = 16;
static constexpr int BShift = 24;
static constexpr int AShift = 0;
static constexpr int RBits = 8;
static constexpr int GBits = 8;
static constexpr int BBits = 8;
static constexpr int ABits = 8;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ABGR4444> {
static constexpr int RShift = 0;
static constexpr int GShift = 4;
static constexpr int BShift = 8;
static constexpr int AShift = 12;
static constexpr int RBits = 4;
static constexpr int GBits = 4;
static constexpr int BBits = 4;
static constexpr int ABits = 4;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ARGB4444> {
static constexpr int RShift = 8;
static constexpr int GShift = 4;
static constexpr int BShift = 0;
static constexpr int AShift = 12;
static constexpr int RBits = 4;
static constexpr int GBits = 4;
static constexpr int BBits = 4;
static constexpr int ABits = 4;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_RGBA4444> {
static constexpr int RShift = 12;
static constexpr int GShift = 8;
static constexpr int BShift = 4;
static constexpr int AShift = 0;
static constexpr int RBits = 4;
static constexpr int GBits = 4;
static constexpr int BBits = 4;
static constexpr int ABits = 4;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_BGRA4444> {
static constexpr int RShift = 4;
static constexpr int GShift = 8;
static constexpr int BShift = 12;
static constexpr int AShift = 0;
static constexpr int RBits = 4;
static constexpr int GBits = 4;
static constexpr int BBits = 4;
static constexpr int ABits = 4;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ABGR1555> {
static constexpr int RShift = 0;
static constexpr int GShift = 5;
static constexpr int BShift = 10;
static constexpr int AShift = 15;
static constexpr int RBits = 5;
static constexpr int GBits = 5;
static constexpr int BBits = 5;
static constexpr int ABits = 1;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_ARGB1555> {
static constexpr int RShift = 10;
static constexpr int GShift = 5;
static constexpr int BShift = 0;
static constexpr int AShift = 15;
static constexpr int RBits = 8;
static constexpr int GBits = 8;
static constexpr int BBits = 8;
static constexpr int ABits = 1;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_RGBA5551> {
static constexpr int RShift = 11;
static constexpr int GShift = 6;
static constexpr int BShift = 1;
static constexpr int AShift = 0;
static constexpr int RBits = 5;
static constexpr int GBits = 5;
static constexpr int BBits = 5;
static constexpr int ABits = 1;
};
template<>
struct FormatMapping<SDL_PIXELFORMAT_BGRA5551> {
static constexpr int RShift = 1;
static constexpr int GShift = 6;
static constexpr int BShift = 11;
static constexpr int AShift = 0;
static constexpr int RBits = 5;
static constexpr int GBits = 5;
static constexpr int BBits = 5;
static constexpr int ABits = 1;
};