boolean Overlay( LPDIRECTDRAWSURFACE7 src_surface, RECT * src_rect,
LPDIRECTDRAWSURFACE7 dst_surface, RECT * dst_rect,
COLORREF color_key )
{
DWORD dw_color_key;
DDPIXELFORMAT ddpf;
DDOVERLAYFX ddofx;
int flags;
HRESULT result;
// compute the colorkey pixel value from the RGB value we've got/
// NOTE : based on videolan colorkey code
memset( &ddpf, 0, sizeof( DDPIXELFORMAT ));
ddpf.dwSize = sizeof( DDPIXELFORMAT );
result = IDirectDrawSurface7_GetPixelFormat( dst_surface, &ddpf );
if( result != DD_OK )
{
Error( 0, "IDirectDrawSurface7_GetPixelFormat : could not get surface pixel format" );
return FALSE;
}
dw_color_key = ( DWORD ) color_key;
dw_color_key = ( DWORD ) ( ( ( dw_color_key * ddpf.dwRBitMask ) / 255 ) & ddpf.dwRBitMask );
memset( &ddofx, 0, sizeof( DDOVERLAYFX ) );
ddofx.dwSize = sizeof( DDOVERLAYFX );
ddofx.dckDestColorkey.dwColorSpaceLowValue = dw_color_key;
ddofx.dckDestColorkey.dwColorSpaceHighValue = dw_color_key;
// set our overlay flags
flags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
// attempt to overlay the surface
result = IDirectDrawSurface7_UpdateOverlay( src_surface, src_rect, dst_surface, dst_rect, flags, &ddofx );
if( result != DD_OK )
{
if( result == DDERR_SURFACELOST )
{
IDirectDrawSurface7_Restore( src_surface );
IDirectDrawSurface7_Restore( dst_surface );
IDirectDrawSurface7_UpdateOverlay( src_surface, src_rect, dst_surface, dst_rect, flags, &ddofx );
}
else
{
Error( 0, "IDirectDrawSurface7_UpdateOverlay : error %i", result );
return FALSE;
}
}
return TRUE;
}
static void offscreen_test(void) {
IDirectDrawSurface7 *overlay = create_overlay(64, 64, MAKEFOURCC('U','Y','V','Y')), *offscreen = NULL;
HRESULT hr;
DDSURFACEDESC2 ddsd;
/* Try to overlay a NULL surface */
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, NULL, NULL, DDOVER_SHOW, NULL);
ok(hr == DDERR_INVALIDPARAMS, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, NULL, NULL, DDOVER_HIDE, NULL);
ok(hr == DDERR_INVALIDPARAMS, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
/* Try to overlay an offscreen surface */
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
ddsd.dwWidth = 64;
ddsd.dwHeight = 64;
U4(ddsd).ddpfPixelFormat.dwSize = sizeof(U4(ddsd).ddpfPixelFormat);
U4(ddsd).ddpfPixelFormat.dwFlags = DDPF_RGB;
U4(ddsd).ddpfPixelFormat.dwFourCC = 0;
U1(U4(ddsd).ddpfPixelFormat).dwRGBBitCount = 16;
U2(U4(ddsd).ddpfPixelFormat).dwRBitMask = 0xF800;
U3(U4(ddsd).ddpfPixelFormat).dwGBitMask = 0x07e0;
U4(U4(ddsd).ddpfPixelFormat).dwBBitMask = 0x001F;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
hr = IDirectDraw7_CreateSurface(ddraw, &ddsd, &offscreen, NULL);
ok(hr == DD_OK, "IDirectDraw7_CreateSurface failed with hr=0x%08x\n", hr);
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, offscreen, NULL, DDOVER_SHOW, NULL);
ok(hr == DD_OK || broken(hr == E_NOTIMPL),
"IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
/* Try to overlay the primary with a non-overlay surface */
hr = IDirectDrawSurface7_UpdateOverlay(offscreen, NULL, primary, NULL, DDOVER_SHOW, NULL);
ok(hr == DDERR_NOTAOVERLAYSURFACE, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
IDirectDrawSurface7_Release(offscreen);
IDirectDrawSurface7_Release(overlay);
}
static void rectangle_settings(void) {
IDirectDrawSurface7 *overlay = create_overlay(64, 64, MAKEFOURCC('U','Y','V','Y'));
HRESULT hr, hr2;
RECT rect = {0, 0, 64, 64};
LONG posx, posy;
/* The dx sdk sort of implies that rect must be set when DDOVER_SHOW is used. This is not true
* in Windows Vista and earlier, but changed in Win7 */
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, &rect, DDOVER_SHOW, NULL);
ok(hr == DD_OK, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, NULL, DDOVER_HIDE, NULL);
ok(hr == DD_OK, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, NULL, DDOVER_SHOW, NULL);
ok(hr == DD_OK || hr == DDERR_INVALIDPARAMS, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
/* Show that the overlay position is the (top, left) coordinate of the dest rectangle */
rect.top += 16;
rect.left += 32;
rect.bottom += 16;
rect.right += 32;
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, &rect, DDOVER_SHOW, NULL);
ok(hr == DD_OK, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
posx = -1; posy = -1;
hr = IDirectDrawSurface7_GetOverlayPosition(overlay, &posx, &posy);
ok(hr == DD_OK, "IDirectDrawSurface7_GetOverlayPosition failed with hr=0x%08x\n", hr);
ok(posx == rect.left && posy == rect.top, "Overlay position is (%d, %d), expected (%d, %d)\n",
posx, posy, rect.left, rect.top);
/* Passing a NULL dest rect sets the position to 0/0 . Visually it can be seen that the overlay overlays the whole primary(==screen)*/
hr2 = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, NULL, 0, NULL);
ok(hr2 == DD_OK || hr2 == DDERR_INVALIDPARAMS
|| hr2 == DDERR_OUTOFCAPS, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr2);
hr = IDirectDrawSurface7_GetOverlayPosition(overlay, &posx, &posy);
ok(hr == DD_OK, "IDirectDrawSurface7_GetOverlayPosition failed with hr=0x%08x\n", hr);
if (SUCCEEDED(hr2))
{
ok(posx == 0 && posy == 0, "Overlay position is (%d, %d), expected (%d, %d)\n",
posx, posy, 0, 0);
}
else
{
/* Otherwise the position remains untouched */
ok(posx == 32 && posy == 16, "Overlay position is (%d, %d), expected (%d, %d)\n",
posx, posy, 32, 16);
}
/* The position cannot be retrieved when the overlay is not shown */
hr = IDirectDrawSurface7_UpdateOverlay(overlay, NULL, primary, &rect, DDOVER_HIDE, NULL);
ok(hr == DD_OK, "IDirectDrawSurface7_UpdateOverlay failed with hr=0x%08x\n", hr);
posx = -1; posy = -1;
hr = IDirectDrawSurface7_GetOverlayPosition(overlay, &posx, &posy);
ok(hr == DDERR_OVERLAYNOTVISIBLE, "IDirectDrawSurface7_GetOverlayPosition failed with hr=0x%08x\n", hr);
ok(posx == 0 && posy == 0, "Overlay position is (%d, %d), expected (%d, %d)\n",
posx, posy, 0, 0);
IDirectDrawSurface7_Release(overlay);
}