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win32: correctly clear screen during non-stretch-filled fullscreen double-buffered

This commit is contained in:
zeromus 2010-11-13 22:28:39 +00:00
parent b30a69020b
commit e99fbb2957
1 changed files with 33 additions and 2 deletions
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35
src/drivers/win/video.cpp
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@ -423,7 +423,6 @@ int SetVideoMode(int fs)
ShowDDErr("Error getting attached surface."); ShowDDErr("Error getting attached surface.");
return 0; return 0;
} }
// FIXME: The back buffer isn't cleared properly, causing massive flickering.
} }
if(!GetBPP()) if(!GetBPP())
@ -548,6 +547,19 @@ static void BlitScreenWindow(unsigned char *XBuf)
} }
} }
static void DD_FillRect(LPDIRECTDRAWSURFACE7 surf, int left, int top, int right, int bottom, DWORD color)
{
RECT r;
SetRect(&r,left,top,right,bottom);
DDBLTFX fx;
memset(&fx,0,sizeof(DDBLTFX));
fx.dwSize = sizeof(DDBLTFX);
//fx.dwFillColor = color;
fx.dwFillColor = 0; //color is just for debug
surf->Blt(&r,NULL,NULL,DDBLT_COLORFILL | DDBLT_WAIT,&fx);
}
static void BlitScreenFull(uint8 *XBuf) static void BlitScreenFull(uint8 *XBuf)
{ {
static int pitch; static int pitch;
@ -617,6 +629,26 @@ static void BlitScreenFull(uint8 *XBuf)
drect.bottom=drect.top+(FSettings.TotalScanlines()*vmodes[vmod].yscale); drect.bottom=drect.top+(FSettings.TotalScanlines()*vmodes[vmod].yscale);
drect.left=(vmodes[vmod].x-VNSWID*vmodes[vmod].xscale)>>1; drect.left=(vmodes[vmod].x-VNSWID*vmodes[vmod].xscale)>>1;
drect.right=drect.left+VNSWID*vmodes[vmod].xscale; drect.right=drect.left+VNSWID*vmodes[vmod].xscale;
RECT fullScreen;
fullScreen.left = fullScreen.top = 0;
fullScreen.right = vmodes[vmod].x;
fullScreen.bottom = vmodes[vmod].y;
RECT r;
r = drect;
int left = r.left;
int top = r.top;
int right = r.right;
int bottom = r.bottom;
DD_FillRect(lpDDSVPrimary,0,0,left,top,RGB(255,0,0)); //topleft
DD_FillRect(lpDDSVPrimary,left,0,right,top,RGB(128,0,0)); //topcenter
DD_FillRect(lpDDSVPrimary,right,0,fullScreen.right,top,RGB(0,255,0)); //topright
DD_FillRect(lpDDSVPrimary,0,top,left,bottom,RGB(0,128,0)); //left
DD_FillRect(lpDDSVPrimary,right,top,fullScreen.right,bottom,RGB(0,0,255)); //right
DD_FillRect(lpDDSVPrimary,0,bottom,left,fullScreen.bottom,RGB(0,0,128)); //bottomleft
DD_FillRect(lpDDSVPrimary,left,bottom,right,fullScreen.bottom,RGB(255,0,255)); //bottomcenter
DD_FillRect(lpDDSVPrimary,right,bottom,fullScreen.right,fullScreen.bottom,RGB(0,255,255)); //bottomright
} }
} }
else else
@ -789,7 +821,6 @@ static void BlitScreenFull(uint8 *XBuf)
} }
} }
if(IDirectDrawSurface7_Blt(lpDDSVPrimary, &drect,lpDDSBack,&srect,DDBLT_ASYNC,0)!=DD_OK) if(IDirectDrawSurface7_Blt(lpDDSVPrimary, &drect,lpDDSBack,&srect,DDBLT_ASYNC,0)!=DD_OK)
{ {
ddrval=IDirectDrawSurface7_Blt(lpDDSVPrimary, &drect,lpDDSBack,&srect,DDBLT_WAIT,0); ddrval=IDirectDrawSurface7_Blt(lpDDSVPrimary, &drect,lpDDSBack,&srect,DDBLT_WAIT,0);