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wined3d: Request alpha in backbuffer mode, to work correctly with multiple opengl pixel formats.

oldstable
Roderick Colenbrander 2008-02-22 23:27:38 +00:00 committed by Alexandre Julliard
parent 7f33e95ca7
commit 68467cf344
1 changed files with 10 additions and 1 deletions
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11
dlls/wined3d/context.c
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@ -210,6 +210,7 @@ WineD3DContext *CreateContext(IWineD3DDeviceImpl *This, IWineD3DSurfaceImpl *tar
int attribs[256];
int nAttribs = 0;
unsigned int nFormats;
WINED3DFORMAT fmt = target->resource.format;
hdc = GetDC(win_handle);
if(hdc == NULL) {
@ -224,7 +225,15 @@ WineD3DContext *CreateContext(IWineD3DDeviceImpl *This, IWineD3DSurfaceImpl *tar
PUSH2(WGL_SUPPORT_OPENGL_ARB, GL_TRUE);
PUSH2(WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB); /* Make sure we receive an accelerated format. On windows (at least on ATI) this is not always the case */
if(!getColorBits(target->resource.format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits)) {
/* In case of ORM_BACKBUFFER, make sure to request an alpha component for X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
if(wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER) {
if(target->resource.format == WINED3DFMT_X4R4G4B4)
fmt = WINED3DFMT_A4R4G4B4;
else if(target->resource.format == WINED3DFMT_X8R8G8B8)
fmt = WINED3DFMT_A8R8G8B8;
}
if(!getColorBits(fmt, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits)) {
ERR("Unable to get color bits for format %#x!\n", target->resource.format);
return FALSE;
}