Initial import attempt, just to play with. Many things disabled/removed

ui/cc/PlatformColor.h

+/*
+ * Copyright (C) 2011 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PlatformColor_h
+#define PlatformColor_h
+
+#include "Extensions3D.h"
+#include "GraphicsContext3D.h"
+#include "SkTypes.h" 
+#include <public/WebGraphicsContext3D.h>
+
+namespace WebCore {
+
+class PlatformColor {
+public:
+    static GC3Denum format()
+    {
+        return SK_B32_SHIFT ? GL_RGBA : GL_BGRA_EXT;
+    }
+
+    // Returns the most efficient texture format for this platform.
+    static GC3Denum bestTextureFormat(WebKit::WebGraphicsContext3D* context, bool supportsBGRA8888)
+    {
+        GC3Denum textureFormat = GL_RGBA;
+        switch (format()) {
+        case GL_RGBA:
+            break;
+        case GL_BGRA_EXT:
+            if (supportsBGRA8888)
+                textureFormat = GL_BGRA_EXT;
+            break;
+        default:
+            ASSERT_NOT_REACHED();
+            break;
+        }
+        return textureFormat;
+    }
+
+    // Return true if the given texture format has the same component order
+    // as the color on this platform.
+    static bool sameComponentOrder(GC3Denum textureFormat)
+    {
+        switch (format()) {
+        case GL_RGBA:
+            return textureFormat == GL_RGBA;
+        case GL_BGRA_EXT:
+            return textureFormat == GL_BGRA_EXT;
+        default:
+            ASSERT_NOT_REACHED();
+            return false;
+        }
+    }
+};
+
+} // namespace WebCore
+
+#endif