/**
* vdraw_ddraw_flip(): Flip the screen buffer. [Called by vdraw_flip().]
* @return 0 on success; non-zero on error.
*/
int vdraw_ddraw_flip(void)
{
if (!lpDD)
return -1;
HRESULT rval = DD_OK;
DDSURFACEDESC2 ddsd;
ddsd.dwSize = sizeof(ddsd);
RECT RectSrc;
// Calculate the source rectangle.
vdraw_ddraw_calc_RectSrc(RectSrc);
if (vdraw_get_fullscreen())
{
// Fullscreen.
if (vdraw_ddraw_is_hw_render())
{
// Hardware rendering.
// 1x rendering.
// TODO: Test this with border color stuff.
// Wine doesn't seem to have a 320x240 fullscreen mode available...
// TODO: Test this on a system that supports 1x in fullscreen on DirectDraw.
vdraw_ddraw_draw_text(&ddsd, lpDDS_Back, true);
if (Video.VSync_FS)
{
lpDDS_Flip->Blt(&RectDest, lpDDS_Back, &RectSrc, DDBLT_WAIT | DDBLT_ASYNC, NULL);
lpDDS_Primary->Flip(NULL, DDFLIP_WAIT);
}
else
{
lpDDS_Primary->Blt(&RectDest, lpDDS_Back, &RectSrc, DDBLT_WAIT | DDBLT_ASYNC, NULL);
//lpDDS_Primary->Blt(&RectDest, lpDDS_Back, &RectSrc, NULL, NULL);
}
}
else
{
// Software rendering.
LPDIRECTDRAWSURFACE7 curBlit = lpDDS_Blit;
rval = curBlit->Lock(NULL, &ddsd, DDLOCK_WAIT, NULL);
if (FAILED(rval))
goto cleanup_flip;
vdraw_rInfo.destScreen = (void*)ddsd.lpSurface;
vdraw_rInfo.width = 320;
vdraw_rInfo.height = 240;
vdraw_rInfo.destPitch = ddsd.lPitch;
if (vdraw_needs_conversion)
{
// Color depth conversion is required.
vdraw_rgb_convert(&vdraw_rInfo);
}
else
{
// Color conversion is not required.
vdraw_blitFS(&vdraw_rInfo);
}
// Draw the text.
vdraw_ddraw_draw_text(&ddsd, curBlit, false);
curBlit->Unlock(NULL);
if (curBlit == lpDDS_Back) // note: this can happen in windowed fullscreen, or if CORRECT_256_ASPECT_RATIO is defined and the current display mode is 256 pixels across
{
if (Video.VSync_FS)
{
int vb;
lpDD->GetVerticalBlankStatus(&vb);
if (!vb)
lpDD->WaitForVerticalBlank(DDWAITVB_BLOCKBEGIN, 0);
}
lpDDS_Primary->Blt(&RectDest, lpDDS_Back, &RectSrc, DDBLT_WAIT | DDBLT_ASYNC, NULL);
}
else
{
if (Video.VSync_FS)
{
lpDDS_Primary->Flip(NULL, DDFLIP_WAIT);
}
}
}
}
else
{
// Windowed mode.
if (!vdraw_ddraw_is_hw_render())
{
rval = lpDDS_Blit->Lock(NULL, &ddsd, DDLOCK_WAIT, NULL);
if (FAILED(rval))
goto cleanup_flip;
vdraw_rInfo.destScreen = (void*)ddsd.lpSurface;
vdraw_rInfo.width = 320;
vdraw_rInfo.height = 240;
vdraw_rInfo.destPitch = ddsd.lPitch;
if (vdraw_needs_conversion)
{
// Color depth conversion is required.
vdraw_rgb_convert(&vdraw_rInfo);
}
else
{
// Color conversion is not required.
vdraw_blitW(&vdraw_rInfo);
}
// Draw the text.
vdraw_ddraw_draw_text(&ddsd, lpDDS_Blit, false);
lpDDS_Blit->Unlock(NULL);
}
else
{
// Draw the text.
vdraw_ddraw_draw_text(&ddsd, lpDDS_Blit, true);
}
if (RectDest.top < RectDest.bottom)
{
if (Video.VSync_W)
{
int vb;
lpDD->GetVerticalBlankStatus(&vb);
if (!vb)
lpDD->WaitForVerticalBlank(DDWAITVB_BLOCKBEGIN, 0);
}
// Blit the image.
rval = lpDDS_Primary->Blt(&RectDest, lpDDS_Back, &RectSrc, DDBLT_WAIT | DDBLT_ASYNC, NULL);
//rval = lpDDS_Primary->Blt(&RectDest, lpDDS_Back, &RectSrc, NULL, NULL);
}
}
cleanup_flip:
if (rval == DDERR_SURFACELOST)
rval = vdraw_ddraw_restore_graphics();
return 1;
}
