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sa2: do not call VideoPresentScreen every Apple ][ frame when in full speed.

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But only call it after 16ms wall clock.

Fixes https://github.com/audetto/AppleWin/issues/61

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>
This commit is contained in:
Andrea Odetti 2022-01-11 18:07:57 +00:00
parent c70377fcaf
commit d88ab1199d
2 changed files with 6 additions and 3 deletions
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3
source/frontends/sdl/main.cpp
View file

@ -155,8 +155,9 @@ void run_sdl(int argc, const char * argv [])
frame->ExecuteOneFrame(oneFrame); frame->ExecuteOneFrame(oneFrame);
cpuTimer.toc(); cpuTimer.toc();
if (!options.headless) if (!options.headless && !g_bFullSpeed)
{ {
// in full speed VideoRedrawScreenDuringFullSpeed is called inside SDLFrame::Execute
refreshScreenTimer.tic(); refreshScreenTimer.tic();
frame->VideoPresentScreen(); frame->VideoPresentScreen();
refreshScreenTimer.toc(); refreshScreenTimer.toc();

6
source/frontends/sdl/sdlframe.cpp
View file

@ -591,8 +591,9 @@ namespace sa2
g_dwCyclesThisFrame -= dwClksPerFrame; g_dwCyclesThisFrame -= dwClksPerFrame;
if (g_bFullSpeed) if (g_bFullSpeed)
{ {
NTSC_VideoClockResync(g_dwCyclesThisFrame); // only call VideoPresentScreen every 16ms
GetVideo().VideoRefreshBuffer(GetVideo().GetVideoMode(), true); // hardcoded in FrameBase::VideoRedrawScreenDuringFullSpeed()
VideoRedrawScreenDuringFullSpeed(g_dwCyclesThisFrame);
} }
} }
} while (totalCyclesExecuted < cyclesToExecute); } while (totalCyclesExecuted < cyclesToExecute);
@ -687,6 +688,7 @@ namespace sa2
// entering full speed // entering full speed
MB_Mute(); MB_Mute();
setGLSwapInterval(0); setGLSwapInterval(0);
VideoRedrawScreenDuringFullSpeed(0, true);
} }
else else
{ {