1 files changed, 51 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/android/LayerTexture.cpp b/WebCore/platform/graphics/android/LayerTexture.cpp
new file mode 100644
index 0000000..294c3d3
--- /dev/null
+++ b/WebCore/platform/graphics/android/LayerTexture.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * 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"
+#include "LayerTexture.h"
+
+#define DOUBLE_BUFFERED_TEXTURE_MINIMUM_ACCESS 3
+
+void LayerTexture::producerUpdate(TextureInfo* textureInfo)
+{
+    update();
+    BackedDoubleBufferedTexture::producerUpdate(textureInfo);
+}
+
+void LayerTexture::update()
+{
+    // FIXME: fix the double buffered texture class instead of doing this
+    // this is a stop gap measure and should be removed.
+    // Right now we have to update the textures 3 times (one create, two
+    // updates) before we can be sure to have a non-corrupted texture
+    // to display.
+    if (m_textureUpdates < DOUBLE_BUFFERED_TEXTURE_MINIMUM_ACCESS)
+        m_textureUpdates++;
+}
+
+bool LayerTexture::isReady()
+{
+    return m_textureUpdates == DOUBLE_BUFFERED_TEXTURE_MINIMUM_ACCESS;
+}