void gfxFlushBuffers(void)
{
u32 topSize = 400 * 240 * __get_bytes_per_pixel(gfxGetScreenFormat(GFX_TOP));
u32 bottomSize = 320 * 240 * __get_bytes_per_pixel(gfxGetScreenFormat(GFX_BOTTOM));
GSPGPU_FlushDataCache(gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), topSize);
if(enable3d)GSPGPU_FlushDataCache(gfxGetFramebuffer(GFX_TOP, GFX_RIGHT, NULL, NULL), topSize);
GSPGPU_FlushDataCache(gfxGetFramebuffer(GFX_BOTTOM, GFX_LEFT, NULL, NULL), bottomSize);
}
void gfxSetFramebufferInfo(gfxScreen_t screen, u8 id)
{
if(screen==GFX_TOP)
{
topFramebufferInfo.active_framebuf=id;
topFramebufferInfo.framebuf0_vaddr=(u32*)gfxTopLeftFramebuffers[id];
if(enable3d)topFramebufferInfo.framebuf1_vaddr=(u32*)gfxTopRightFramebuffers[id];
else topFramebufferInfo.framebuf1_vaddr=topFramebufferInfo.framebuf0_vaddr;
topFramebufferInfo.framebuf_widthbytesize=240*__get_bytes_per_pixel(topFormat);
u8 bit5=(enable3d!=0);
topFramebufferInfo.format=((1)<<8)|((1^bit5)<<6)|((bit5)<<5)|topFormat;
topFramebufferInfo.framebuf_dispselect=id;
topFramebufferInfo.unk=0x00000000;
}else{
bottomFramebufferInfo.active_framebuf=id;
bottomFramebufferInfo.framebuf0_vaddr=(u32*)gfxBottomFramebuffers[id];
bottomFramebufferInfo.framebuf1_vaddr=0x00000000;
bottomFramebufferInfo.framebuf_widthbytesize=240*__get_bytes_per_pixel(botFormat);
bottomFramebufferInfo.format=botFormat;
bottomFramebufferInfo.framebuf_dispselect=id;
bottomFramebufferInfo.unk=0x00000000;
}
}
void gfxInit(GSPGPU_FramebufferFormats topFormat, GSPGPU_FramebufferFormats bottomFormat, bool vrambuffers)
{
void *(*screenAlloc)(size_t);
if (vrambuffers)
{
screenAlloc=vramAlloc;
screenFree=vramFree;
} else {
screenAlloc=linearAlloc;
screenFree=linearFree;
}
gspInit();
gfxSharedMemory=(u8*)mappableAlloc(0x1000);
GSPGPU_AcquireRight(0x0);
//setup our gsp shared mem section
svcCreateEvent(&gspEvent, 0x0);
GSPGPU_RegisterInterruptRelayQueue(gspEvent, 0x1, &gspSharedMemHandle, &gfxThreadID);
svcMapMemoryBlock(gspSharedMemHandle, (u32)gfxSharedMemory, 0x3, 0x10000000);
// default gspHeap configuration :
// topleft1 0x00000000-0x00046500
// topleft2 0x00046500-0x0008CA00
// bottom1 0x0008CA00-0x000C4E00
// bottom2 0x000C4E00-0x000FD200
// if 3d enabled :
// topright1 0x000FD200-0x00143700
// topright2 0x00143700-0x00189C00
u32 topSize = 400 * 240 * __get_bytes_per_pixel(topFormat);
u32 bottomSize = 320 * 240 * __get_bytes_per_pixel(bottomFormat);
gfxTopLeftFramebuffers[0]=screenAlloc(topSize);
gfxTopLeftFramebuffers[1]=screenAlloc(topSize);
gfxBottomFramebuffers[0]=screenAlloc(bottomSize);
gfxBottomFramebuffers[1]=screenAlloc(bottomSize);
gfxTopRightFramebuffers[0]=screenAlloc(topSize);
gfxTopRightFramebuffers[1]=screenAlloc(topSize);
enable3d=false;
//set requested modes
gfxSetScreenFormat(GFX_TOP,topFormat);
gfxSetScreenFormat(GFX_BOTTOM,bottomFormat);
//initialize framebuffer info structures
gfxSetFramebufferInfo(GFX_TOP, 0);
gfxSetFramebufferInfo(GFX_BOTTOM, 0);
//GSP shared mem : 0x2779F000
gxCmdBuf=(u32*)(gfxSharedMemory+0x800+gfxThreadID*0x200);
currentBuffer[0]=0;
currentBuffer[1]=0;
// Initialize event handler and wait for VBlank
gspInitEventHandler(gspEvent, (vu8*) gfxSharedMemory, gfxThreadID);
gspWaitForVBlank();
GSPGPU_SetLcdForceBlack(0x0);
}