O2D:...

core/cross/cairo/texture_cairo.cc

 /*
  * Copyright 2010, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 96 matching lines @@
     goto fail1;
   }
   image_surface_context = cairo_create(image_surface);
   status = cairo_status(image_surface_context);
   if (CAIRO_STATUS_SUCCESS != status) {
     DLOG(ERROR) << "Error creating Cairo image surface draw context: "
                 << status;
     goto fail2;
   }
 
+  cairo_set_operator(image_surface_context, CAIRO_OPERATOR_SOURCE);
+
   return new TextureCairo(service_locator,
                           image_surface,
                           image_surface_context,
                           format,
                           levels,
                           width,
                           height,
                           enable_render_surfaces);
 
  fail2:
@@ skipping 20 matching lines @@
 // Set the image data to the renderer
 void TextureCairo::SetRect(int level,
                            unsigned dst_left,
                            unsigned dst_top,
                            unsigned src_width,
                            unsigned src_height,
                            const void* src_data,
                            int src_pitch) {
   DLOG(INFO) << "Texture2DCairo SetRect";
 
+  if (0 != level) {
+    // Cairo does not support/need mip-maps.
+    return;
+  }
+
   // Create image surface to represent the source.
   cairo_surface_t* source_image_surface = cairo_image_surface_create_for_data(
       const_cast<unsigned char*>(
           static_cast<const unsigned char*>(src_data)),
       cairo_image_surface_get_format(image_surface_),
       src_width,
       src_height,
       src_pitch);
 
   // Set that surface as the source for paint operations to our texture.
   cairo_set_source_surface(image_surface_context_,
                            source_image_surface,
                            dst_left,
                            dst_top);
 
   // Paint to the texture. This copies the data.
   cairo_paint(image_surface_context_);
 
   // Discard our reference to the source surface.
   cairo_surface_destroy(source_image_surface);
 
-  if (level == 0) {
-    TextureUpdated();
-  }
+  TextureUpdated();
 }
 
 // Locks the given mipmap level of this texture for loading from main memory,
 // and returns a pointer to the buffer.
 bool TextureCairo::PlatformSpecificLock(
     int level, void** data, int* pitch, Texture::AccessMode mode) {
   NOTIMPLEMENTED();
   return true;
 }
 
@@ skipping 16 matching lines @@
 
 // Returns the implementation-specific texture handle for this texture.
 void* TextureCairo::GetTextureHandle() const {
   NOTIMPLEMENTED();
   return reinterpret_cast<void*>(NULL);
 }
 
 }  // namespace o2d
 
 }  // namespace o3d