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GPU stuff

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This commit is contained in:
smea 2014-08-25 21:31:12 -07:00
parent 56d9f4abb3
commit 47284dcd34
3 changed files with 39 additions and 5 deletions
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10
libctru/include/3ds/GPU.h
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@ -77,6 +77,13 @@ typedef enum{
#define GPU_TEVSOURCES(a,b,c) (((a))|((b)<<4)|((c)<<8)) #define GPU_TEVSOURCES(a,b,c) (((a))|((b)<<4)|((c)<<8))
#define GPU_TEVOPERANDS(a,b,c) (((a))|((b)<<4)|((c)<<8)) #define GPU_TEVOPERANDS(a,b,c) (((a))|((b)<<4)|((c)<<8))
typedef enum{
GPU_TRIANGLES = 0x0000,
GPU_TRIANGLE_STRIP = 0x0100,
GPU_TRIANGLE_FAN = 0x0200,
GPU_UNKPRIM = 0x0300 // ?
}GPU_Primitive_t;
void GPU_SetUniform(u32 startreg, u32* data, u32 numreg); void GPU_SetUniform(u32 startreg, u32* data, u32 numreg);
void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h); void GPU_SetViewport(u32* depthBuffer, u32* colorBuffer, u32 x, u32 y, u32 w, u32 h);
void GPU_DepthRange(float nearVal, float farVal); void GPU_DepthRange(float nearVal, float farVal);
@ -87,4 +94,7 @@ void GPU_SetAttributeBuffers(u8 totalAttributes, u32* baseAddress, u64 attribute
void GPU_SetTexture(u32* data, u16 width, u16 height, u32 param, GPU_TEXCOLOR colorType); void GPU_SetTexture(u32* data, u16 width, u16 height, u32 param, GPU_TEXCOLOR colorType);
void GPU_SetTexEnv(u8 id, u16 rgbSources, u16 alphaSources, u16 rgbOperands, u16 alphaOperands, GPU_COMBINEFUNC rgbCombine, GPU_COMBINEFUNC alphaCombine, u32 constantColor); void GPU_SetTexEnv(u8 id, u16 rgbSources, u16 alphaSources, u16 rgbOperands, u16 alphaOperands, GPU_COMBINEFUNC rgbCombine, GPU_COMBINEFUNC alphaCombine, u32 constantColor);
void GPU_DrawArray(GPU_Primitive_t primitive, u32 n);
void GPU_DrawElements(GPU_Primitive_t primitive, u32* indexArray, u32 n);
#endif #endif

1
libctru/include/3ds/gfx.h
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@ -24,6 +24,7 @@ void gfxExit();
void gfxSet3D(bool enable); void gfxSet3D(bool enable);
void gfxFlushBuffers(); void gfxFlushBuffers();
void gfxSwapBuffers(); void gfxSwapBuffers();
void gfxSwapBuffersGpu();
//helper stuff //helper stuff
u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height); u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height);

33
libctru/source/gfx.c
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@ -10,6 +10,9 @@
GSP_FramebufferInfo topFramebufferInfo, bottomFramebufferInfo; GSP_FramebufferInfo topFramebufferInfo, bottomFramebufferInfo;
u8 gfxThreadID;
u8* gfxSharedMemory;
u8* gfxTopLeftFramebuffers[2]; u8* gfxTopLeftFramebuffers[2];
u8* gfxTopRightFramebuffers[2]; u8* gfxTopRightFramebuffers[2];
u8* gfxBottomFramebuffers[2]; u8* gfxBottomFramebuffers[2];
@ -51,20 +54,31 @@ void gfxSetFramebufferInfo(gfxScreen_t screen, u8 id)
} }
} }
void gfxWriteFramebufferInfo(gfxScreen_t screen)
{
u8* framebufferInfoHeader=gfxSharedMemory+0x200+gfxThreadID*0x80;
if(screen==GFX_BOTTOM)framebufferInfoHeader+=0x40;
GSP_FramebufferInfo* framebufferInfo=(GSP_FramebufferInfo*)&framebufferInfoHeader[0x4];
framebufferInfoHeader[0x0]^=1;
framebufferInfo[framebufferInfoHeader[0x0]]=(screen==GFX_TOP)?(topFramebufferInfo):(bottomFramebufferInfo);
framebufferInfoHeader[0x1]=1;
}
extern u32 __gsp_heap_size; extern u32 __gsp_heap_size;
void gfxInit() void gfxInit()
{ {
gspInit(); gspInit();
gfxSharedMemory=(u8*)0x10002000;
GSPGPU_AcquireRight(NULL, 0x0); GSPGPU_AcquireRight(NULL, 0x0);
GSPGPU_SetLcdForceBlack(NULL, 0x0); GSPGPU_SetLcdForceBlack(NULL, 0x0);
//setup our gsp shared mem section //setup our gsp shared mem section
u8 threadID;
svcCreateEvent(&gspEvent, 0x0); svcCreateEvent(&gspEvent, 0x0);
GSPGPU_RegisterInterruptRelayQueue(NULL, gspEvent, 0x1, &gspSharedMemHandle, &threadID); GSPGPU_RegisterInterruptRelayQueue(NULL, gspEvent, 0x1, &gspSharedMemHandle, &gfxThreadID);
svcMapMemoryBlock(gspSharedMemHandle, 0x10002000, 0x3, 0x10000000); svcMapMemoryBlock(gspSharedMemHandle, (u32)gfxSharedMemory, 0x3, 0x10000000);
//map GSP heap //map GSP heap
svcControlMemory((u32*)&gspHeap, 0x0, 0x0, __gsp_heap_size, 0x10003, 0x3); svcControlMemory((u32*)&gspHeap, 0x0, 0x0, __gsp_heap_size, 0x10003, 0x3);
@ -91,12 +105,12 @@ void gfxInit()
gfxSetFramebufferInfo(GFX_BOTTOM, 0); gfxSetFramebufferInfo(GFX_BOTTOM, 0);
//GSP shared mem : 0x2779F000 //GSP shared mem : 0x2779F000
gxCmdBuf=(u32*)(0x10002000+0x800+threadID*0x200); gxCmdBuf=(u32*)(gfxSharedMemory+0x800+gfxThreadID*0x200);
currentBuffer=0; currentBuffer=0;
// Initialize event handler and wait for VBlank // Initialize event handler and wait for VBlank
gspInitEventHandler(gspEvent, (vu8*)0x10002000, threadID); gspInitEventHandler(gspEvent, (vu8*)gfxSharedMemory, gfxThreadID);
gspWaitForVBlank(); gspWaitForVBlank();
} }
@ -150,3 +164,12 @@ void gfxSwapBuffers()
GSPGPU_SetBufferSwap(NULL, GFX_TOP, &topFramebufferInfo); GSPGPU_SetBufferSwap(NULL, GFX_TOP, &topFramebufferInfo);
GSPGPU_SetBufferSwap(NULL, GFX_BOTTOM, &bottomFramebufferInfo); GSPGPU_SetBufferSwap(NULL, GFX_BOTTOM, &bottomFramebufferInfo);
} }
void gfxSwapBuffersGpu()
{
currentBuffer^=1;
gfxSetFramebufferInfo(GFX_TOP, currentBuffer);
gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer);
gfxWriteFramebufferInfo(GFX_TOP);
gfxWriteFramebufferInfo(GFX_BOTTOM);
}