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block window-mode flip from returning until vretrace

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This commit is contained in:
georges 2000-12-11 20:12:00 +00:00
parent abcda0c385
commit 11d75a93ad
1 changed files with 12 additions and 2 deletions
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14
panda/src/dxgsg/dxGraphicsStateGuardian.cxx
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@ -4622,7 +4622,6 @@ dx_setup_after_resize(RECT viewrect, HWND mwindow)
}
}
////////////////////////////////////////////////////////////////////
// Function: show_frame
// Access:
@ -4655,7 +4654,10 @@ void DXGraphicsStateGuardian::show_frame(void) {
}
} else {
HRESULT hr = _pri->Blt( &_view_rect, _back, NULL, DDBLT_WAIT, NULL );
DX_DECLARE_CLEAN(DDBLTFX, bltfx);
bltfx.dwDDFX |= DDBLTFX_NOTEARING;
HRESULT hr = _pri->Blt( &_view_rect, _back, NULL, DDBLT_DDFX | DDBLT_WAIT, &bltfx );
if(hr!=DD_OK) {
if (hr == DDERR_SURFACELOST) {
// Check/restore the primary surface
@ -4673,6 +4675,14 @@ void DXGraphicsStateGuardian::show_frame(void) {
exit(1);
}
}
// right now, we want sync to v-blank (time from now up to vblank is wasted)
// worry about triple-buffering l8r
hr = _pDD->WaitForVerticalBlank(DDWAITVB_BLOCKBEGIN, NULL);
if (hr != DD_OK) {
dxgsg_cat.error() << "DXGraphicsStateGuardian::WaitForVerticalBlank() failed : " << ConvD3DErrorToString(hr) << endl;
exit(1);
}
}
}
}