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Use DDBLT_COLORFILL to clear screen on start (#487)

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Anders Jenbo 2025-07-03 00:49:47 +02:00 committed by GitHub
parent 822e037d40
commit d74e6ab401
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GPG Key ID: B5690EEEBB952194
2 changed files with 8 additions and 33 deletions
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35
LEGO1/mxdirectx/mxdirect3d.cpp
View File

@ -170,39 +170,16 @@ BOOL MxDirect3D::D3DSetMode()
LPDIRECTDRAWSURFACE frontBuffer = FrontBuffer();
LPDIRECTDRAWSURFACE backBuffer = BackBuffer();
DDSURFACEDESC desc;
memset(&desc, 0, sizeof(desc));
desc.dwSize = sizeof(desc);
DDBLTFX ddBltFx = {};
ddBltFx.dwSize = sizeof(DDBLTFX);
ddBltFx.dwFillColor = 0;
if (backBuffer->Lock(NULL, &desc, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL) == DD_OK) {
unsigned char* surface = (unsigned char*) desc.lpSurface;
for (int i = 0; i < mode.height; i++) {
memset(surface, 0, desc.lPitch);
surface += desc.lPitch;
}
backBuffer->Unlock(desc.lpSurface);
}
else {
SDL_Log("MxDirect3D::D3DSetMode() back lock failed\n");
if (backBuffer->Blt(NULL, NULL, NULL, DDBLT_WAIT | DDBLT_COLORFILL, &ddBltFx) != DD_OK) {
SDL_Log("MxDirect3D::D3DSetMode() color fill failed\n");
}
if (IsFullScreen()) {
memset(&desc, 0, sizeof(desc));
desc.dwSize = sizeof(desc);
if (frontBuffer->Lock(NULL, &desc, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL) == DD_OK) {
unsigned char* surface = (unsigned char*) desc.lpSurface;
for (int i = 0; i < mode.height; i++) {
memset(surface, 0, desc.lPitch);
surface += desc.lPitch;
}
frontBuffer->Unlock(desc.lpSurface);
}
else {
if (frontBuffer->Blt(NULL, NULL, NULL, DDBLT_WAIT | DDBLT_COLORFILL, &ddBltFx) != DD_OK) {
SDL_Log("MxDirect3D::D3DSetMode() front lock failed\n");
}
}

6
LEGO1/omni/src/video/mxdisplaysurface.cpp
View File

@ -64,8 +64,6 @@ void MxDisplaySurface::ClearScreen()
MxS32 width = m_videoParam.GetRect().GetWidth();
MxS32 height = m_videoParam.GetRect().GetHeight();
RECT rc = {0, 0, width, height};
memset(&desc, 0, sizeof(desc));
desc.dwSize = sizeof(desc);
if (m_ddSurface2->GetSurfaceDesc(&desc) != DD_OK) {
@ -77,9 +75,9 @@ void MxDisplaySurface::ClearScreen()
ddBltFx.dwFillColor = 0;
for (MxS32 i = 0; i < backBuffers; i++) {
if (m_ddSurface2->Blt(&rc, NULL, NULL, DDBLT_COLORFILL | DDBLT_WAIT, &ddBltFx) == DDERR_SURFACELOST) {
if (m_ddSurface2->Blt(NULL, NULL, NULL, DDBLT_COLORFILL | DDBLT_WAIT, &ddBltFx) == DDERR_SURFACELOST) {
m_ddSurface2->Restore();
m_ddSurface2->Blt(&rc, NULL, NULL, DDBLT_COLORFILL | DDBLT_WAIT, &ddBltFx);
m_ddSurface2->Blt(NULL, NULL, NULL, DDBLT_COLORFILL | DDBLT_WAIT, &ddBltFx);
}
if (m_videoParam.Flags().GetFlipSurfaces()) {