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Cleanup format of GbaImageData

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This commit is contained in:
Gary Talent
2017-05-07 21:41:52 -05:00
parent c4da8394d2
commit 8a2ba6c171
4 changed files with 26 additions and 17 deletions
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12
src/core/gba/gba.hpp
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@ -17,14 +17,18 @@ typedef struct { uint32_t data[8]; } __attribute__((aligned(4))) Tile, Tile4;
// d-tile: double-sized tile (8bpp)
typedef struct { uint32_t data[16]; } __attribute__((aligned(4))) Tile8;
// tile block: 32x16 tiles, 16x16 d-tiles
typedef uint16_t Pallete[256];
typedef uint16_t Palette[256];
typedef Tile CharBlock[512];
typedef Tile8 CharBlock8[256];
struct __attribute__((packed)) GbaImageData {
Pallete pal;
uint16_t tileCount;
struct __attribute__((packed)) GbaImageDataHeader {
uint8_t bpp;
uint16_t tileCount;
};
struct __attribute__((packed)) GbaImageData {
GbaImageDataHeader header;
Palette __attribute__((packed)) pal;
uint8_t tiles[1];
};

23
src/core/gba/gfx.cpp
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@ -130,18 +130,23 @@ ox::Error initGfx() {
void initConsole() {
auto fs = (FileStore32*) findMedia();
GbaImageData imgData;
fs->read(101, __builtin_offsetof(GbaImageData, tileCount),
sizeof(imgData.tileCount) + sizeof(imgData.bpp),
&imgData.tileCount, nullptr);
GbaImageDataHeader imgData;
fs->read(101, 0, sizeof(imgData), &imgData, nullptr);
REG_BG0CNT = (28 << 8) | 1;
if (imgData.bpp == 8) {
REG_BG0CNT |= (1 << 7); // set to use 8 bits per pixel
}
if (fs) {
fs->read(101, __builtin_offsetof(GbaImageData, tiles), 64 * 38, &TILE8_ADDR[0][1], nullptr);
fs->read(101, __builtin_offsetof(GbaImageData, pal), 512, &MEM_PALLETE_BG[0], nullptr);
// load palette
fs->read(101, sizeof(GbaImageDataHeader),
512, (uint16_t*) &MEM_PALLETE_BG[0], nullptr);
if (imgData.bpp == 4) {
fs->read(101, __builtin_offsetof(GbaImageData, tiles),
sizeof(Tile) * imgData.tileCount, (uint16_t*) &TILE_ADDR[0][1], nullptr);
} else {
REG_BG0CNT |= (1 << 7); // set to use 8 bits per pixel
fs->read(101, __builtin_offsetof(GbaImageData, tiles),
sizeof(Tile8) * imgData.tileCount, (uint16_t*) &TILE8_ADDR[0][1], nullptr);
}
}
}

4
src/tools/pack.cpp
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@ -81,8 +81,8 @@ int run(ClArgs args) {
uint8_t imgDataBuff[imgDataBuffSize];
memset(&imgDataBuff, 0, imgDataBuffSize);
GbaImageData *id = (GbaImageData*) imgDataBuff;
id->bpp = argBpp;
id->tileCount = argTiles;
id->header.bpp = argBpp;
id->header.tileCount = argTiles;
int colorId = 0;
// copy pixels as color ids