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textures.

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well, it's a start.
This commit is contained in:
StapleButter
2017-03-02 00:49:44 +01:00
parent f7c481b2a1
commit dcc0227b56
4 changed files with 133 additions and 13 deletions
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29
GPU.h
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@ -354,6 +354,35 @@ T ReadVRAM_OBJ(u32 addr)
}
template<typename T>
T ReadVRAM_Texture(u32 addr)
{
u32 ret = 0;
u32 mask = VRAMMap_Texture[(addr >> 17) & 0x3];
if (mask & (1<<0)) ret |= *(T*)&VRAM_A[addr & 0x1FFFF];
if (mask & (1<<1)) ret |= *(T*)&VRAM_B[addr & 0x1FFFF];
if (mask & (1<<2)) ret |= *(T*)&VRAM_C[addr & 0x1FFFF];
if (mask & (1<<3)) ret |= *(T*)&VRAM_D[addr & 0x1FFFF];
return ret;
}
template<typename T>
T ReadVRAM_TexPal(u32 addr)
{
u32 ret = 0;
if (addr >= 0x18000) return 0;
u32 mask = VRAMMap_TexPal[(addr >> 14) & 0x7];
if (mask & (1<<4)) ret |= *(T*)&VRAM_E[addr & 0xFFFF];
if (mask & (1<<5)) ret |= *(T*)&VRAM_F[addr & 0x3FFF];
if (mask & (1<<6)) ret |= *(T*)&VRAM_G[addr & 0x3FFF];
return ret;
}
void DisplaySwap(u32 val);
void StartFrame();