added gfx for simplified framebuffer access
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smea
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f9fbfc3c48
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36
libctru/include/3ds/gfx.h
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36
libctru/include/3ds/gfx.h
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#ifndef GFX_H
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#define GFX_H
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#include <3ds/types.h>
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typedef enum
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{
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GFX_TOP = 0,
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GFX_BOTTOM = 1
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}gfxScreen_t;
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typedef enum
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{
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GFX_LEFT = 0,
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GFX_RIGHT = 1,
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// GFX_BOTTOM = 0
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}gfx3dSide_t;
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//system stuff
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void gfxInit();
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void gfxExit();
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//control stuff
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void gfxSet3D(bool enable);
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void gfxFlushBuffers();
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void gfxSwapBuffers();
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//helper stuff
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u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height);
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//global variables
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extern u8* gfxTopLeftFramebuffers[2];
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extern u8* gfxSubFramebuffers[2];
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extern u8* gfxBottomFramebuffers[2];
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#endif
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145
libctru/source/gfx.c
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145
libctru/source/gfx.c
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <3ds/types.h>
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#include <3ds/GSP.h>
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#include <3ds/GX.h>
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#include <3ds/svc.h>
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#include <3ds/gfx.h>
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GSP_FramebufferInfo topFramebufferInfo, bottomFramebufferInfo;
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u8* gfxTopLeftFramebuffers[2];
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u8* gfxTopRightFramebuffers[2];
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u8* gfxBottomFramebuffers[2];
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u8 currentBuffer;
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bool enable3d;
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Handle gspEvent, gspSharedMemHandle;
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u8* gspHeap;
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u32* gxCmdBuf;
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void gfxSet3D(bool enable)
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{
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enable3d=enable;
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}
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void gfxSetFramebufferInfo(gfxScreen_t screen, u8 id)
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{
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if(screen==GFX_TOP)
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{
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topFramebufferInfo.active_framebuf=id;
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topFramebufferInfo.framebuf0_vaddr=(u32*)gfxTopLeftFramebuffers[id];
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if(enable3d)topFramebufferInfo.framebuf1_vaddr=(u32*)gfxTopRightFramebuffers[id];
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else topFramebufferInfo.framebuf1_vaddr=topFramebufferInfo.framebuf0_vaddr;
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topFramebufferInfo.framebuf_widthbytesize=240*3;
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topFramebufferInfo.format=((1)<<8)|((1)<<6)|((enable3d&1)<<5)|GSP_BGR8_OES;
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topFramebufferInfo.framebuf_dispselect=id;
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topFramebufferInfo.unk=0x00000000;
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}else{
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bottomFramebufferInfo.active_framebuf=id;
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bottomFramebufferInfo.framebuf0_vaddr=(u32*)gfxBottomFramebuffers[id];
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bottomFramebufferInfo.framebuf1_vaddr=0x00000000;
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bottomFramebufferInfo.framebuf_widthbytesize=240*3;
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bottomFramebufferInfo.format=GSP_BGR8_OES;
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bottomFramebufferInfo.framebuf_dispselect=id;
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bottomFramebufferInfo.unk=0x00000000;
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}
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}
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void gfxInit()
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{
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gspInit();
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GSPGPU_AcquireRight(NULL, 0x0);
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GSPGPU_SetLcdForceBlack(NULL, 0x0);
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//setup our gsp shared mem section
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u8 threadID;
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svcCreateEvent(&gspEvent, 0x0);
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GSPGPU_RegisterInterruptRelayQueue(NULL, gspEvent, 0x1, &gspSharedMemHandle, &threadID);
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svcMapMemoryBlock(gspSharedMemHandle, 0x10002000, 0x3, 0x10000000);
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//map GSP heap
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svcControlMemory((u32*)&gspHeap, 0x0, 0x0, 0x02000000, 0x10003, 0x3);
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// default gspHeap configuration :
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// topleft1 0x00000000-0x00046500
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// topleft2 0x00046500-0x0008CA00
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// bottom1 0x0008CA00-0x000C4E00
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// bottom2 0x000C4E00-0x000FD200
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// if 3d enabled :
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// topright1 0x000FD200-0x00143700
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// topright2 0x00143700-0x00189C00
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gfxTopLeftFramebuffers[0]=(u8*)gspHeap;
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gfxTopLeftFramebuffers[1]=gfxTopLeftFramebuffers[0]+0x46500;
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gfxBottomFramebuffers[0]=gfxTopLeftFramebuffers[1]+0x46500;
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gfxBottomFramebuffers[1]=gfxBottomFramebuffers[0]+0x38400;
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gfxTopRightFramebuffers[0]=gfxBottomFramebuffers[1]+0x38400;
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gfxTopRightFramebuffers[1]=gfxTopRightFramebuffers[0]+0x46500;
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enable3d=false;
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//initialize framebuffer info structures
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gfxSetFramebufferInfo(GFX_TOP, 0);
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gfxSetFramebufferInfo(GFX_BOTTOM, 0);
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//wait until we can write stuff to it
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svcWaitSynchronization(gspEvent, 0x55bcb0);
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//GSP shared mem : 0x2779F000
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gxCmdBuf=(u32*)(0x10002000+0x800+threadID*0x200);
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currentBuffer=0;
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}
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void gfxExit()
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{
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//free GSP heap
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svcControlMemory((u32*)&gspHeap, (u32)gspHeap, 0x0, 0x02000000, MEMOP_FREE, 0x0);
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//unmap GSP shared mem
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svcUnmapMemoryBlock(gspSharedMemHandle, 0x10002000);
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GSPGPU_UnregisterInterruptRelayQueue(NULL);
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svcCloseHandle(gspSharedMemHandle);
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svcCloseHandle(gspEvent);
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GSPGPU_ReleaseRight(NULL);
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gspExit();
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}
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u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height)
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{
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if(width)*width=240;
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if(screen==GFX_TOP)
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{
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if(height)*height=400;
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return (side==GFX_LEFT || !enable3d)?(gfxTopLeftFramebuffers[currentBuffer^1]):(gfxTopRightFramebuffers[currentBuffer^1]);
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}else{
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if(height)*height=320;
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return gfxBottomFramebuffers[currentBuffer^1];
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}
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}
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void gfxFlushBuffers()
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{
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GSPGPU_FlushDataCache(NULL, gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), 0x46500);
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if(enable3d)GSPGPU_FlushDataCache(NULL, gfxGetFramebuffer(GFX_TOP, GFX_RIGHT, NULL, NULL), 0x46500);
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GSPGPU_FlushDataCache(NULL, gfxGetFramebuffer(GFX_BOTTOM, GFX_LEFT, NULL, NULL), 0x38400);
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}
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void gfxSwapBuffers()
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{
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currentBuffer^=1;
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gfxSetFramebufferInfo(GFX_TOP, currentBuffer);
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gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer);
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GSPGPU_SetBufferSwap(NULL, GFX_TOP, &topFramebufferInfo);
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GSPGPU_SetBufferSwap(NULL, GFX_BOTTOM, &bottomFramebufferInfo);
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}
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