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fixed nametable prerender bug

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Lauchmelder 2021-10-30 22:55:21 +02:00
parent 674ee5059b
commit bcbcea5d15
3 changed files with 4 additions and 4 deletions
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2
NES Emulator/bus.c
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@ -34,7 +34,7 @@ struct Bus* createBus(SDL_Renderer* renderer)
memset(bus->ram, 0x00, 0x18);
// Create and insert cartridge
bus->cartridge = createCartridge(bus, "roms/nestest.nes");
bus->cartridge = createCartridge(bus, "roms/donkeykong.nes");
// Create CPU and attach it
bus->cpu = createCPU(bus);

2
NES Emulator/mappers/mapper000.c
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@ -104,6 +104,6 @@ void Mapper000_GetPatternTableTexture(void* mapper, SDL_Texture* texture, int in
int pitch;
void* pixels;
SDL_LockTexture(texture, NULL, &pixels, &pitch);
SDL_memcpy(pixels, sMapper->chr_rom + 0x1000 * index, 0x1000);
SDL_memcpy(pixels, sMapper->chr_rom + (size_t)0x1000 * index, 0x1000);
SDL_UnlockTexture(texture);
}

4
NES Emulator/ppu.c
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@ -357,12 +357,12 @@ SDL_Texture* getRenderedNameTableTexture(struct PPU* ppu, int index)
struct Pixel* pixels;
SDL_LockTexture(target, NULL, (void**)&pixels, &pitch);
Byte patternTable = 0x1000 * ppu->ppuCtrl.bgTile;
Word patternTable = 0x1000 * ppu->ppuCtrl.bgTile;
for (int y = 0; y < 30; y++)
{
for (int x = 0; x < 32; x++)
{
Byte offset = ppu->nameTables[index][y * 32 + x];
Byte offset = ppu->nameTables[index][(size_t)y * 32 + x];
for (int row = 0; row < 8; row++)
{