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Separate output buffers and viewport

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Also allow setting output buffer formats
This commit is contained in:
DiscostewSM 2015-11-24 18:53:27 -08:00
parent 6a7f13654d
commit 0f2f7213c8
5 changed files with 48 additions and 23 deletions
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7
examples/graphics/gpu/geoshader/source/gpu.c
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@ -35,11 +35,12 @@ void gpuClearBuffers(u32 clearColor)
void gpuFrameBegin(void)
{
// Configure the viewport and the depth linear conversion function
GPU_SetViewport(
// Configure the output buffers, viewport and the depth linear conversion function
GPU_OutputBuffers(GPU_DEPTH24_EXT8, GPU_COLOR_RGBA8,
(u32*)osConvertVirtToPhys((u32)depthBuf),
(u32*)osConvertVirtToPhys((u32)colorBuf),
0, 0, 240, 400); // The top screen is physically 240x400 pixels
240, 400); // The top screen is physically 240x400 pixels
GPU_SetViewport(0, 0, 240, 400);
GPU_DepthMap(-1.0f, 0.0f); // calculate the depth value from the Z coordinate in the following way: -1.0*z + 0.0
// Configure some boilerplate

7
examples/graphics/gpu/simple_tri/source/gpu.c
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@ -35,11 +35,12 @@ void gpuClearBuffers(u32 clearColor)
void gpuFrameBegin(void)
{
// Configure the viewport and the depth linear conversion function
GPU_SetViewport(
// Configure the output buffers, viewport and the depth linear conversion function
GPU_OutputBuffers(GPU_DEPTH24_EXT8, GPU_COLOR_RGBA8,
(u32*)osConvertVirtToPhys((u32)depthBuf),
(u32*)osConvertVirtToPhys((u32)colorBuf),
0, 0, 240, 400); // The top screen is physically 240x400 pixels
240, 400); // The top screen is physically 240x400 pixels
GPU_SetViewport(0, 0, 240, 400);
GPU_DepthMap(-1.0f, 0.0f); // calculate the depth value from the Z coordinate in the following way: -1.0*z + 0.0
// Configure some boilerplate

7
examples/graphics/gpu/textured_cube/source/gpu.c
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@ -35,11 +35,12 @@ void gpuClearBuffers(u32 clearColor)
void gpuFrameBegin(void)
{
// Configure the viewport and the depth linear conversion function
GPU_SetViewport(
// Configure the output buffers, viewport and the depth linear conversion function
GPU_OutputBuffers(GPU_DEPTH24_EXT8, GPU_COLOR_RGBA8,
(u32*)osConvertVirtToPhys((u32)depthBuf),
(u32*)osConvertVirtToPhys((u32)colorBuf),
0, 0, 240, 400); // The top screen is physically 240x400 pixels
240, 400); // The top screen is physically 240x400 pixels
GPU_SetViewport(0, 0, 240, 400);
GPU_DepthMap(-1.0f, 0.0f); // calculate the depth value from the Z coordinate in the following way: -1.0*z + 0.0
// Configure some boilerplate

18
libctru/include/3ds/gpu/gpu.h
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@ -50,6 +50,21 @@ typedef enum
GPU_MIRRORED_REPEAT = 0x3,
}GPU_TEXTURE_WRAP_PARAM;
typedef enum
{
GPU_COLOR_RGBA8 = 0x00002,
GPU_COLOR_RGBA5551 = 0x20000,
GPU_COLOR_RGB565 = 0x30000,
GPU_COLOR_RGBA4 = 0x40000
} GPU_COLOR_FORMAT;
typedef enum
{
GPU_DEPTH16 = 0x00000,
GPU_DEPTH24 = 0x00002,
GPU_DEPTH24_EXT8 = 0x00003
} GPU_DEPTH_FORMAT;
typedef enum
{
GPU_TEXUNIT0 = 0x1,
@ -260,7 +275,8 @@ typedef enum{
void GPU_SetFloatUniform(GPU_SHADER_TYPE type, u32 startreg, u32* data, u32 numreg);
void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h);
void GPU_OutputBuffers(GPU_DEPTH_FORMAT depth, GPU_COLOR_FORMAT color, u32* depthBuffer, u32* colorBuffer, u32 w, u32 h);
void GPU_SetViewport(u32 x, u32 y, u32 w, u32 h);
void GPU_SetScissorTest(GPU_SCISSORMODE mode, u32 x, u32 y, u32 w, u32 h);

32
libctru/source/gpu/gpu.c
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@ -291,11 +291,10 @@ static u32 f32tof31(float f)
}
//takes PAs as arguments
void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h)
void GPU_OutputBuffers(GPU_DEPTH_FORMAT depth, GPU_COLOR_FORMAT color, u32* depthBuffer, u32* colorBuffer, u32 w, u32 h)
{
u32 param[0x4];
float fw=(float)w;
float fh=(float)h;
GPUCMD_AddWrite(GPUREG_0111, 0x00000001);
GPUCMD_AddWrite(GPUREG_0110, 0x00000001);
@ -308,9 +307,23 @@ void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u3
GPUCMD_AddIncrementalWrites(GPUREG_DEPTHBUFFER_LOC, param, 0x00000003);
GPUCMD_AddWrite(GPUREG_006E, f116e);
GPUCMD_AddWrite(GPUREG_DEPTHBUFFER_FORMAT, 0x00000003); //depth buffer format
GPUCMD_AddWrite(GPUREG_COLORBUFFER_FORMAT, 0x00000002); //color buffer format
GPUCMD_AddWrite(GPUREG_011B, 0x00000000); //?
GPUCMD_AddWrite(GPUREG_DEPTHBUFFER_FORMAT, depth); //depth buffer format
GPUCMD_AddWrite(GPUREG_COLORBUFFER_FORMAT, color); //color buffer format
GPUCMD_AddWrite(GPUREG_BLOCKMODE, 0x00000000); //block mode (0x0 = 8x8, 0x1 = 32x32)
//enable depth buffer
param[0x0]=0x0000000F;
param[0x1]=0x0000000F;
param[0x2]=0x00000002;
param[0x3]=0x00000002;
GPUCMD_AddIncrementalWrites(GPUREG_0112, param, 0x00000004);
}
void GPU_SetViewport(u32 x, u32 y, u32 w, u32 h)
{
u32 param[0x4];
float fw=(float)w;
float fh=(float)h;
param[0x0]=f32tof24(fw/2);
param[0x1]=f32tof31(2.0f / fw) << 1;
@ -324,13 +337,6 @@ void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u3
param[0x1]=0x00000000;
param[0x2]=((h-1)<<16)|((w-1)&0xFFFF);
GPUCMD_AddIncrementalWrites(GPUREG_SCISSORTEST_MODE, param, 0x00000003);
//enable depth buffer
param[0x0]=0x0000000F;
param[0x1]=0x0000000F;
param[0x2]=0x00000002;
param[0x3]=0x00000002;
GPUCMD_AddIncrementalWrites(GPUREG_0112, param, 0x00000004);
}
void GPU_SetScissorTest(GPU_SCISSORMODE mode, u32 x, u32 y, u32 w, u32 h)