Index: ui/cc/PlatformColor.h |
diff --git a/ui/cc/PlatformColor.h b/ui/cc/PlatformColor.h |
new file mode 100644 |
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+++ b/ui/cc/PlatformColor.h |
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+/* |
+ * 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 |