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Fix clear screen on buffered deevices (#544)

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Anders Jenbo 2025-07-07 03:40:53 +02:00 committed by GitHub
parent 6df6ae407c
commit bb86ee3172
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GPG Key ID: B5690EEEBB952194
1 changed files with 12 additions and 1 deletions
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13
LEGO1/omni/src/video/mxdisplaysurface.cpp
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@ -52,7 +52,7 @@ void MxDisplaySurface::ClearScreen()
DDSURFACEDESC desc; DDSURFACEDESC desc;
if (!m_videoParam.Flags().GetFlipSurfaces()) { if (!m_videoParam.Flags().GetFlipSurfaces()) {
backBuffers = 1; backBuffers = 2;
} }
else { else {
backBuffers = m_videoParam.GetBackBuffers() + 1; backBuffers = m_videoParam.GetBackBuffers() + 1;
@ -80,6 +80,17 @@ void MxDisplaySurface::ClearScreen()
if (m_videoParam.Flags().GetFlipSurfaces()) { if (m_videoParam.Flags().GetFlipSurfaces()) {
m_ddSurface1->Flip(NULL, DDFLIP_WAIT); m_ddSurface1->Flip(NULL, DDFLIP_WAIT);
} }
else {
DDBLTFX data;
memset(&data, 0, sizeof(data));
data.dwSize = sizeof(data);
data.dwDDFX = DDBLTFX_NOTEARING;
if (m_ddSurface1->Blt(NULL, m_ddSurface2, NULL, DDBLT_NONE, &data) == DDERR_SURFACELOST) {
m_ddSurface1->Restore();
m_ddSurface1->Blt(NULL, m_ddSurface2, NULL, DDBLT_NONE, &data);
}
}
} }
} }