/***********************************************************************
* dibdrv_wglMakeCurrent
*/
static BOOL dibdrv_wglMakeCurrent( HDC hdc, struct wgl_context *context )
{
HBITMAP bitmap;
BITMAPOBJ *bmp;
dib_info dib;
GLenum type;
BOOL ret = FALSE;
if (!context)
{
pOSMesaMakeCurrent( NULL, NULL, GL_UNSIGNED_BYTE, 0, 0 );
return TRUE;
}
if (GetPixelFormat( hdc ) != context->format)
FIXME( "mismatched pixel formats %u/%u not supported yet\n",
GetPixelFormat( hdc ), context->format );
bitmap = GetCurrentObject( hdc, OBJ_BITMAP );
bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
if (!bmp) return FALSE;
if (init_dib_info_from_bitmapobj( &dib, bmp ))
{
char *bits;
int width = dib.rect.right - dib.rect.left;
int height = dib.rect.bottom - dib.rect.top;
if (dib.stride < 0)
bits = (char *)dib.bits.ptr + (dib.rect.bottom - 1) * dib.stride;
else
bits = (char *)dib.bits.ptr + dib.rect.top * dib.stride;
bits += dib.rect.left * dib.bit_count / 8;
TRACE( "context %p bits %p size %ux%u\n", context, bits, width, height );
if (pixel_formats[context->format - 1].mesa == OSMESA_RGB_565)
type = GL_UNSIGNED_SHORT_5_6_5;
else
type = GL_UNSIGNED_BYTE;
ret = pOSMesaMakeCurrent( context->context, bits, type, width, height );
if (ret)
{
pOSMesaPixelStore( OSMESA_ROW_LENGTH, abs( dib.stride ) * 8 / dib.bit_count );
pOSMesaPixelStore( OSMESA_Y_UP, 1 ); /* Windows seems to assume bottom-up */
}
}
GDI_ReleaseObj( bitmap );
return ret;
}
/***********************************************************************
* dibdrv_SelectBitmap
*/
static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSelectBitmap );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
TRACE("(%p, %p)\n", dev, bitmap);
if (!bmp) return 0;
free_dib_info(&pdev->dib);
pdev->defer = 0;
if(!init_dib_info_from_bitmapobj(&pdev->dib, bmp, private_color_table))
pdev->defer |= DEFER_FORMAT;
GDI_ReleaseObj( bitmap );
return next->funcs->pSelectBitmap( next, bitmap );
}
/***********************************************************************
* dibdrv_SelectBitmap
*/
static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
{
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
dib_info dib;
TRACE("(%p, %p)\n", dev, bitmap);
if (!bmp) return 0;
if (!init_dib_info_from_bitmapobj(&dib, bmp))
{
GDI_ReleaseObj( bitmap );
return 0;
}
pdev->dib = dib;
GDI_ReleaseObj( bitmap );
return bitmap;
}
