1 files changed, 82 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/WebGLLayer.cpp b/Source/WebCore/platform/graphics/android/WebGLLayer.cpp
new file mode 100644
index 0000000..9feb2e1
--- /dev/null
+++ b/Source/WebCore/platform/graphics/android/WebGLLayer.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2011, 2012 Sony Ericsson Mobile Communications AB
+ * Copyright (C) 2012 Sony Mobile Communications AB
+ *
+ * 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.
+ *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER OR
+ * 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.
+ */
+#include "config.h"
+
+#if ENABLE(WEBGL) && USE(ACCELERATED_COMPOSITING)
+
+#include "WebGLLayer.h"
+
+#include "GraphicsContext3DInternal.h"
+#include "DrawQuadData.h"
+#include "SkRect.h"
+#include "TilesManager.h"
+#include "TransformationMatrix.h"
+
+namespace WebCore {
+
+WebGLLayer::WebGLLayer(PassRefPtr<GraphicsContext3DProxy> proxy)
+    : LayerAndroid((RenderLayer*)0)
+    , m_proxy(proxy)
+{
+}
+
+WebGLLayer::WebGLLayer(const WebGLLayer& layer)
+    : LayerAndroid(layer)
+    , m_proxy(layer.m_proxy)
+{
+}
+
+WebGLLayer::~WebGLLayer()
+{
+}
+
+bool WebGLLayer::drawGL(bool layerTilesDisabled)
+{
+    bool askScreenUpdate = false;
+
+    askScreenUpdate |= LayerAndroid::drawGL(layerTilesDisabled);
+
+    if (m_proxy.get()) {
+        GLuint texture;
+        SkRect localBounds;
+        bool locked = m_proxy->lockFrontBuffer(texture, localBounds);
+        if (locked) {
+            // Flip the y-coordinate
+            TransformationMatrix transform = m_drawTransform;
+            transform = transform.translate(0, 2 * localBounds.top() + localBounds.height());
+            transform = transform.scale3d(1.0, -1.0, 1.0);
+            TextureQuadData data(texture, GL_TEXTURE_EXTERNAL_OES, GL_LINEAR, LayerQuad, &transform, &localBounds);
+            TilesManager::instance()->shader()->drawQuad(&data);
+            m_proxy->releaseFrontBuffer();
+        }
+    }
+
+    return askScreenUpdate;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEBGL) && USE(ACCELERATED_COMPOSITING)