EXPORT void CALL UpdateScreen (void)
{
frameSkipper.update();
//has there been any display lists since last update
if (OGL.frame_prevdl == OGL.frame_dl) return;
OGL.frame_prevdl = OGL.frame_dl;
if (OGL.frame_dl > 0) OGL.frame_vsync++;
if (OGL.mustRenderDlist)
{
if(config.printFPS)
{
static unsigned int lastTick=0;
static int frames=0;
unsigned int nowTick = SDL_GetTicks();
frames++;
if(lastTick + 5000 <= nowTick)
{
printf("Video: %.3f VI/S\n", frames/5.0);
frames = 0;
lastTick = nowTick;
}
}
OGL.screenUpdate=true;
VI_UpdateScreen();
OGL.mustRenderDlist = false;
}
}
EXPORT int CALL InitiateGFX (GFX_INFO Gfx_Info)
{
DMEM = Gfx_Info.DMEM;
IMEM = Gfx_Info.IMEM;
RDRAM = Gfx_Info.RDRAM;
REG.MI_INTR = (u32*) Gfx_Info.MI_INTR_REG;
REG.DPC_START = (u32*) Gfx_Info.DPC_START_REG;
REG.DPC_END = (u32*) Gfx_Info.DPC_END_REG;
REG.DPC_CURRENT = (u32*) Gfx_Info.DPC_CURRENT_REG;
REG.DPC_STATUS = (u32*) Gfx_Info.DPC_STATUS_REG;
REG.DPC_CLOCK = (u32*) Gfx_Info.DPC_CLOCK_REG;
REG.DPC_BUFBUSY = (u32*) Gfx_Info.DPC_BUFBUSY_REG;
REG.DPC_PIPEBUSY = (u32*) Gfx_Info.DPC_PIPEBUSY_REG;
REG.DPC_TMEM = (u32*) Gfx_Info.DPC_TMEM_REG;
REG.VI_STATUS = (u32*) Gfx_Info.VI_STATUS_REG;
REG.VI_ORIGIN = (u32*) Gfx_Info.VI_ORIGIN_REG;
REG.VI_WIDTH = (u32*) Gfx_Info.VI_WIDTH_REG;
REG.VI_INTR = (u32*) Gfx_Info.VI_INTR_REG;
REG.VI_V_CURRENT_LINE = (u32*) Gfx_Info.VI_V_CURRENT_LINE_REG;
REG.VI_TIMING = (u32*) Gfx_Info.VI_TIMING_REG;
REG.VI_V_SYNC = (u32*) Gfx_Info.VI_V_SYNC_REG;
REG.VI_H_SYNC = (u32*) Gfx_Info.VI_H_SYNC_REG;
REG.VI_LEAP = (u32*) Gfx_Info.VI_LEAP_REG;
REG.VI_H_START = (u32*) Gfx_Info.VI_H_START_REG;
REG.VI_V_START = (u32*) Gfx_Info.VI_V_START_REG;
REG.VI_V_BURST = (u32*) Gfx_Info.VI_V_BURST_REG;
REG.VI_X_SCALE = (u32*) Gfx_Info.VI_X_SCALE_REG;
REG.VI_Y_SCALE = (u32*) Gfx_Info.VI_Y_SCALE_REG;
CheckInterrupts = Gfx_Info.CheckInterrupts;
Config_LoadConfig();
Config_LoadRomConfig(Gfx_Info.HEADER);
ticksInitialize();
if( config.autoFrameSkip )
frameSkipper.setSkips( FrameSkipper::AUTO, config.maxFrameSkip );
else
frameSkipper.setSkips( FrameSkipper::MANUAL, config.maxFrameSkip );
OGL_Start();
return 1;
}
EXPORT int CALL RomOpen (void)
{
RSP_Init();
OGL.frame_vsync = 0;
OGL.frame_dl = 0;
OGL.frame_prevdl = -1;
OGL.mustRenderDlist = false;
frameSkipper.setTargetFPS(config.romPAL ? 50 : 60);
return 1;
}
EXPORT void CALL ProcessDList(void)
{
OGL.frame_dl++;
if (config.autoFrameSkip)
{
OGL_UpdateFrameTime();
if (OGL.consecutiveSkips < 1)
{
unsigned t = 0;
for(int i = 0; i < OGL_FRAMETIME_NUM; i++) t += OGL.frameTime[i];
t *= config.targetFPS;
if (config.romPAL) t = (t * 5) / 6;
if (t > (OGL_FRAMETIME_NUM * 1000))
{
OGL.consecutiveSkips++;
OGL.frameSkipped++;
RSP.busy = FALSE;
RSP.DList++;
/* avoid hang on frameskip */
*REG.MI_INTR |= MI_INTR_DP;
CheckInterrupts();
*REG.MI_INTR |= MI_INTR_SP;
CheckInterrupts();
return;
}
}
}
else if (frameSkipper.willSkipNext())
{
OGL.frameSkipped++;
RSP.busy = FALSE;
RSP.DList++;
/* avoid hang on frameskip */
*REG.MI_INTR |= MI_INTR_DP;
CheckInterrupts();
*REG.MI_INTR |= MI_INTR_SP;
CheckInterrupts();
return;
}
OGL.consecutiveSkips = 0;
RSP_ProcessDList();
OGL.mustRenderDlist = true;
}
EXPORT void CALL UpdateScreen (void)
{
frameSkipper.update();
//has there been any display lists since last update
if (OGL.frame_prevdl == OGL.frame_dl) return;
OGL.frame_prevdl = OGL.frame_dl;
if (OGL.frame_dl > 0) OGL.frame_vsync++;
if (OGL.mustRenderDlist)
{
OGL.screenUpdate=true;
VI_UpdateScreen();
OGL.mustRenderDlist = false;
}
}
EXPORT void CALL ProcessDList(void)
{
OGL.frame_dl++;
if (frameSkipper.willSkipNext())
{
OGL.frameSkipped++;
RSP.busy = FALSE;
RSP.DList++;
/* avoid hang on frameskip */
*REG.MI_INTR |= MI_INTR_DP;
CheckInterrupts();
*REG.MI_INTR |= MI_INTR_SP;
CheckInterrupts();
return;
}
OGL.consecutiveSkips = 0;
RSP_ProcessDList();
OGL.mustRenderDlist = true;
}
EXPORT void CALL SetFrameSkipping(bool autoSkip, int maxSkips)
{
frameSkipper.setSkips(
autoSkip ? FrameSkipper::AUTO : FrameSkipper::MANUAL,
maxSkips);
}
EXPORT void CALL RomResumed(void)
{
frameSkipper.start();
}
