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Core: Extend tile cache to return raw bits

This commit is contained in:
Vicki Pfau 2017-02-02 16:33:48 -08:00
parent cea83a5444
commit f3b66397a2
2 changed files with 26 additions and 0 deletions
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2
include/mgba/core/tile-cache.h
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@ -58,6 +58,8 @@ void mTileCacheSetPalette(struct mTileCache* cache, int palette);
const uint16_t* mTileCacheGetTile(struct mTileCache* cache, unsigned tileId, unsigned paletteId);
const uint16_t* mTileCacheGetTileIfDirty(struct mTileCache* cache, struct mTileCacheEntry* entry, unsigned tileId, unsigned paletteId);
const uint8_t* mTileCacheGetRawTile(struct mTileCache* cache, unsigned tileId);
const uint16_t* mTileCacheGetPalette(struct mTileCache* cache, unsigned paletteId);
CXX_GUARD_END

24
src/core/tile-cache.c
View File

@ -283,3 +283,27 @@ const uint16_t* mTileCacheGetTileIfDirty(struct mTileCache* cache, struct mTileC
}
return tile;
}
const uint8_t* mTileCacheGetRawTile(struct mTileCache* cache, unsigned tileId) {
unsigned bpp = cache->bpp;
switch (bpp) {
case 0:
return NULL;
default:
return (uint8_t*) &cache->vram[tileId << (2 + bpp)];
}
}
const uint16_t* mTileCacheGetPalette(struct mTileCache* cache, unsigned paletteId) {
unsigned bpp = cache->bpp;
switch (bpp) {
default:
return NULL;
case 1:
return &cache->palette[paletteId << 2];
case 2:
return &cache->palette[paletteId << 4];
case 3:
return &cache->palette[paletteId << 8];
}
}