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Add gfxSetDoubleBuffering() for disabling double-buffering

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This commit is contained in:
fincs 2014-12-08 15:57:39 +01:00
parent 6a195608aa
commit b5723c9209
2 changed files with 16 additions and 10 deletions
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1
libctru/include/3ds/gfx.h
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@ -22,6 +22,7 @@ void gfxExit();
//control stuff //control stuff
void gfxSet3D(bool enable); void gfxSet3D(bool enable);
void gfxSetScreenFormat(gfxScreen_t screen, GSP_FramebufferFormats format); void gfxSetScreenFormat(gfxScreen_t screen, GSP_FramebufferFormats format);
void gfxSetDoubleBuffering(bool doubleBuffering);
void gfxFlushBuffers(); void gfxFlushBuffers();
void gfxSwapBuffers(); void gfxSwapBuffers();
void gfxSwapBuffersGpu(); void gfxSwapBuffersGpu();

25
libctru/source/gfx.c
View File

@ -12,13 +12,14 @@ u8* gfxTopLeftFramebuffers[2];
u8* gfxTopRightFramebuffers[2]; u8* gfxTopRightFramebuffers[2];
u8* gfxBottomFramebuffers[2]; u8* gfxBottomFramebuffers[2];
u8 currentBuffer; static u8 currentBuffer;
bool enable3d; static bool enable3d;
static int doubleBuf = 1;
Handle gspEvent, gspSharedMemHandle; Handle gspEvent, gspSharedMemHandle;
GSP_FramebufferFormats topFormat = GSP_BGR8_OES; static GSP_FramebufferFormats topFormat = GSP_BGR8_OES;
GSP_FramebufferFormats botFormat = GSP_BGR8_OES; static GSP_FramebufferFormats botFormat = GSP_BGR8_OES;
void gfxSet3D(bool enable) void gfxSet3D(bool enable)
{ {
@ -32,6 +33,10 @@ void gfxSetScreenFormat(gfxScreen_t screen, GSP_FramebufferFormats format) {
botFormat = format; botFormat = format;
} }
void gfxSetDoubleBuffering(bool doubleBuffering) {
doubleBuf = doubleBuffering ? 1 : 0; // make sure they're the integer values '1' and '0'
}
static u32 __get_bytes_per_pixel(GSP_FramebufferFormats format) { static u32 __get_bytes_per_pixel(GSP_FramebufferFormats format) {
switch(format) { switch(format) {
case GSP_RGBA8_OES: case GSP_RGBA8_OES:
@ -76,7 +81,7 @@ void gfxWriteFramebufferInfo(gfxScreen_t screen)
u8* framebufferInfoHeader=gfxSharedMemory+0x200+gfxThreadID*0x80; u8* framebufferInfoHeader=gfxSharedMemory+0x200+gfxThreadID*0x80;
if(screen==GFX_BOTTOM)framebufferInfoHeader+=0x40; if(screen==GFX_BOTTOM)framebufferInfoHeader+=0x40;
GSP_FramebufferInfo* framebufferInfo=(GSP_FramebufferInfo*)&framebufferInfoHeader[0x4]; GSP_FramebufferInfo* framebufferInfo=(GSP_FramebufferInfo*)&framebufferInfoHeader[0x4];
framebufferInfoHeader[0x0]^=1; framebufferInfoHeader[0x0]^=doubleBuf;
framebufferInfo[framebufferInfoHeader[0x0]]=(screen==GFX_TOP)?(topFramebufferInfo):(bottomFramebufferInfo); framebufferInfo[framebufferInfoHeader[0x0]]=(screen==GFX_TOP)?(topFramebufferInfo):(bottomFramebufferInfo);
framebufferInfoHeader[0x1]=1; framebufferInfoHeader[0x1]=1;
} }
@ -131,7 +136,7 @@ void gfxExit()
// Exit event handler // Exit event handler
gspExitEventHandler(); gspExitEventHandler();
// Free framebuffers (let's pretend linearFree is actually implemented...) // Free framebuffers
linearFree(gfxTopRightFramebuffers[1]); linearFree(gfxTopRightFramebuffers[1]);
linearFree(gfxTopRightFramebuffers[0]); linearFree(gfxTopRightFramebuffers[0]);
linearFree(gfxBottomFramebuffers[1]); linearFree(gfxBottomFramebuffers[1]);
@ -159,10 +164,10 @@ u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* hei
if(screen==GFX_TOP) if(screen==GFX_TOP)
{ {
if(height)*height=400; if(height)*height=400;
return (side==GFX_LEFT || !enable3d)?(gfxTopLeftFramebuffers[currentBuffer^1]):(gfxTopRightFramebuffers[currentBuffer^1]); return (side==GFX_LEFT || !enable3d)?(gfxTopLeftFramebuffers[currentBuffer^doubleBuf]):(gfxTopRightFramebuffers[currentBuffer^doubleBuf]);
}else{ }else{
if(height)*height=320; if(height)*height=320;
return gfxBottomFramebuffers[currentBuffer^1]; return gfxBottomFramebuffers[currentBuffer^doubleBuf];
} }
} }
@ -175,7 +180,7 @@ void gfxFlushBuffers()
void gfxSwapBuffers() void gfxSwapBuffers()
{ {
currentBuffer^=1; currentBuffer^=doubleBuf;
gfxSetFramebufferInfo(GFX_TOP, currentBuffer); gfxSetFramebufferInfo(GFX_TOP, currentBuffer);
gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer); gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer);
GSPGPU_SetBufferSwap(NULL, GFX_TOP, &topFramebufferInfo); GSPGPU_SetBufferSwap(NULL, GFX_TOP, &topFramebufferInfo);
@ -184,7 +189,7 @@ void gfxSwapBuffers()
void gfxSwapBuffersGpu() void gfxSwapBuffersGpu()
{ {
currentBuffer^=1; currentBuffer^=doubleBuf;
gfxSetFramebufferInfo(GFX_TOP, currentBuffer); gfxSetFramebufferInfo(GFX_TOP, currentBuffer);
gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer); gfxSetFramebufferInfo(GFX_BOTTOM, currentBuffer);
gfxWriteFramebufferInfo(GFX_TOP); gfxWriteFramebufferInfo(GFX_TOP);