GetSpacer returns a copy, not a reference to the size

[wxWidgets.git] / src / dfb / wrapdfb.cpp

diff --git a/src/dfb/wrapdfb.cpp b/src/dfb/wrapdfb.cpp
index 406d7a6893bce54cd8c0c21ef2d5b041c992ffee..afd6ee064b0e8a57d1fa7bfbe790dfbd5cbeebcf 100644 (file)
--- a/src/dfb/wrapdfb.cpp
+++ b/src/dfb/wrapdfb.cpp
@@ -95,3 +95,100 @@ void wxIDirectFB::CleanUp()
 {
     ms_ptr.Reset();
 }
+
+wxIDirectFBSurfacePtr wxIDirectFB::GetPrimarySurface()
+{
+    wxIDirectFBDisplayLayerPtr layer(GetDisplayLayer());
+    return layer ? layer->GetSurface() : NULL;
+}
+
+//-----------------------------------------------------------------------------
+// wxIDirectFBSurface
+//-----------------------------------------------------------------------------
+
+int wxIDirectFBSurface::GetDepth()
+{
+    DFBSurfacePixelFormat format = DSPF_UNKNOWN;
+
+    if ( !GetPixelFormat(&format) )
+        return -1;
+
+    return DFB_BITS_PER_PIXEL(format);
+}
+
+wxIDirectFBSurfacePtr
+wxIDirectFBSurface::CreateCompatible(const wxSize& sz, int flags)
+{
+    wxSize size(sz);
+    if ( size == wxDefaultSize )
+    {
+        if ( !GetSize(&size.x, &size.y) )
+            return NULL;
+    }
+
+    wxCHECK_MSG( size.x > 0 && size.y > 0, NULL, _T("invalid size") );
+
+    DFBSurfaceDescription desc;
+    desc.flags = (DFBSurfaceDescriptionFlags)(
+            DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT);
+    GetCapabilities(&desc.caps);
+    GetPixelFormat(&desc.pixelformat);
+    desc.width = size.x;
+    desc.height = size.y;
+
+    // filter out caps that don't make sense for a new compatible surface:
+    int caps = desc.caps;
+    caps &= ~DSCAPS_PRIMARY;
+    caps &= ~DSCAPS_SUBSURFACE;
+    if ( flags & CreateCompatible_NoBackBuffer )
+    {
+        caps &= ~DSCAPS_DOUBLE;
+        caps &= ~DSCAPS_TRIPLE;
+    }
+    desc.caps = (DFBSurfaceCapabilities)caps;
+
+    wxIDirectFBSurfacePtr snew(wxIDirectFB::Get()->CreateSurface(&desc));
+    if ( !snew )
+        return NULL;
+
+    if ( desc.pixelformat == DSPF_LUT8 )
+    {
+        wxIDirectFBPalettePtr pal(GetPalette());
+        if ( pal )
+        {
+            if ( !snew->SetPalette(pal) )
+                return NULL;
+        }
+    }
+
+    return snew;
+}
+
+wxIDirectFBSurfacePtr wxIDirectFBSurface::Clone()
+{
+    wxIDirectFBSurfacePtr snew(CreateCompatible());
+    if ( !snew )
+        return NULL;
+
+    if ( !snew->SetBlittingFlags(DSBLIT_NOFX) )
+        return NULL;
+
+    if ( !snew->Blit(GetRaw(), NULL, 0, 0) )
+        return NULL;
+
+    return snew;
+}
+
+bool wxIDirectFBSurface::Flip(const DFBRegion *region, int flags)
+{
+    return Check(m_ptr->Flip(m_ptr, region, (DFBSurfaceFlipFlags)flags));
+}
+
+bool wxIDirectFBSurface::FlipToFront(const DFBRegion *region)
+{
+    // Blit to the front buffer instead of exchanging front and back ones.
+    // Always doing this ensures that back and front buffer have same content
+    // and so painting to the back buffer will never lose any previous
+    // drawings:
+    return Flip(region, DSFLIP_BLIT);
+}