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GPU : added buffer setup commands to GPU_SetViewport

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smea 2014-03-12 20:11:34 +01:00
parent 21dbf5aa75
commit bffbc975e2
3 changed files with 37 additions and 8 deletions
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8
gpu/source/main.c
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@ -114,7 +114,13 @@ int main()
GSPGPU_WriteHWRegs(NULL, 0x202A04, &regData, 4);
GPUCMD_SetBuffer(gpuCmd, gpuCmdSize, 0);
GPUCMD_AddSingleParam(0x0008025E, 0x00000000);
//depth buffer in VRAM, color buffer in FCRAM (gspHeap)
//(no real reasoning behind this configuration)
GPU_SetViewport((u32*)0x18000000,(u32*)0x20000000,0,0,240*2,400);
SHDR_UseProgram(shader, 0);
GPUCMD_AddSingleParam(0x0008025E, 0x00000000);
GPUCMD_Finalize();
GPUCMD_Run(gxCmdBuf);

2
libctru/include/ctr/GPU.h
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@ -11,6 +11,6 @@ void GPUCMD_AddSingleParam(u32 cmd, u32 param);
void GPUCMD_Finalize();
void GPU_SetUniform(u32 startreg, u32* data, u32 numreg);
void GPU_SetViewport(u32 x, u32 y, float w, float h);
void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h);
#endif

35
libctru/source/GPU.c
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@ -222,7 +222,7 @@ u32 computeInvValue(u32 val)
u32 tmp3=*((u32*)&fval);
tmp1=(tmp3<<9)>>9;
tmp2=tmp3&(~0x80000000);
if(tmp3&(~0x80000000))
if(tmp2)
{
tmp1=(tmp3<<9)>>9;
int tmp=((tmp3<<1)>>24)-0x40;
@ -233,15 +233,38 @@ u32 computeInvValue(u32 val)
return (tmp1|(tmp2<<23)|(tmp3<<30))<<1;
}
void GPU_SetViewport(u32 x, u32 y, float w, float h)
//takes PAs as arguments
void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h)
{
u32 param[0x4];
float fw=(float)w;
float fh=(float)h;
param[0x0]=f32tof24(w/2);
param[0x1]=computeInvValue(w);
param[0x2]=f32tof24(h/2);
param[0x3]=computeInvValue(h);
GPUCMD_AddSingleParam(0x000F0111, 0x00000001);
GPUCMD_AddSingleParam(0x000F0110, 0x00000001);
u32 f116e=0x01000000|(((h-1)&0xFFF)<<12)|(w&0xFFF);
param[0x0]=((u32)depthBuffer)>>3;
param[0x1]=((u32)colorBuffer)>>3;
param[0x2]=f116e;
GPUCMD_Add(0x800F011C, param, 0x00000003);
GPUCMD_AddSingleParam(0x000F006E, f116e);
GPUCMD_AddSingleParam(0x000F0116, 0x00000003); //?
GPUCMD_AddSingleParam(0x000F0117, 0x00000002); //?
GPUCMD_AddSingleParam(0x000F011B, 0x00000000); //?
param[0x0]=f32tof24(fw/2);
param[0x1]=computeInvValue(fw);
param[0x2]=f32tof24(fh/2);
param[0x3]=computeInvValue(fh);
GPUCMD_Add(0x800F0041, param, 0x00000004);
GPUCMD_AddSingleParam(0x000F0068, (y<<16)|(x&0xFFFF));
param[0x0]=0x00000000;
param[0x1]=0x00000000;
param[0x2]=((h-1)<<16)|((w-1)&0xFFFF);
GPUCMD_Add(0x800F0065, param, 0x00000003);
}