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Add UnpackBppTile and PackBppTile

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This commit is contained in:
scawful
2023-08-17 20:31:22 -04:00
parent b1bc0839c3
commit c10f43a948
2 changed files with 136 additions and 2 deletions
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16
src/app/gfx/snes_tile.h
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@@ -2,6 +2,7 @@
#define YAZE_APP_GFX_SNES_TILE_H
#include <cstdint>
#include <cstring>
#include <vector>
#include "app/core/constants.h"
@@ -17,12 +18,23 @@ Bytes SnesTo8bppSheet(Bytes sheet, int bpp);
Bytes BPP8SNESToIndexed(Bytes data, uint64_t bpp = 0);
struct tile8 {
unsigned int id;
uint32_t id;
char data[64];
unsigned int palette_id;
uint32_t palette_id;
};
using tile8 = struct tile8;
tile8 UnpackBppTile(const Bytes& data, const uint32_t offset,
const uint32_t bpp);
Bytes PackBppTile(const tile8& tile, const uint32_t bpp);
std::vector<uchar> ConvertBpp(const std::vector<uchar>& tiles,
uint32_t from_bpp, uint32_t to_bpp);
std::vector<uchar> Convert3bppTo4bpp(const std::vector<uchar>& tiles);
std::vector<uchar> Convert4bppTo3bpp(const std::vector<uchar>& tiles);
// vhopppcc cccccccc
// [0, 1]
// [2, 3]