Index: ui/cc/GeometryBinding.cpp |
diff --git a/ui/cc/GeometryBinding.cpp b/ui/cc/GeometryBinding.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..381e76486b5c5521053c7a8f0ce0e5a396024d48 |
--- /dev/null |
+++ b/ui/cc/GeometryBinding.cpp |
@@ -0,0 +1,82 @@ |
+/* |
+ * 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. |
+ */ |
+ |
+#include "config.h" |
+ |
+#if USE(ACCELERATED_COMPOSITING) |
+ |
+#include "GeometryBinding.h" |
+ |
+#include "GraphicsContext3D.h" |
+#include "LayerRendererChromium.h" |
+#include <public/WebGraphicsContext3D.h> |
+ |
+namespace WebCore { |
+ |
+GeometryBinding::GeometryBinding(WebKit::WebGraphicsContext3D* context) |
+ : m_context(context) |
+ , m_quadVerticesVbo(0) |
+ , m_quadElementsVbo(0) |
+ , m_initialized(false) |
+{ |
+ // Vertex positions and texture coordinates for the 4 corners of a 1x1 quad. |
+ float vertices[] = { -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, |
+ -0.5f, -0.5f, 0.0f, 0.0f, 0.0f, |
+ 0.5f, -0.5f, 0.0f, 1.0f, 0.0f, |
+ 0.5f, 0.5f, 0.0f, 1.0f, 1.0f }; |
+ uint16_t indices[] = { 0, 1, 2, 0, 2, 3, // The two triangles that make up the layer quad. |
+ 0, 1, 2, 3}; // A line path for drawing the layer border. |
+ |
+ GLC(m_context, m_quadVerticesVbo = m_context->createBuffer()); |
+ GLC(m_context, m_quadElementsVbo = m_context->createBuffer()); |
+ GLC(m_context, m_context->bindBuffer(GL_ARRAY_BUFFER, m_quadVerticesVbo)); |
+ GLC(m_context, m_context->bufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW)); |
+ GLC(m_context, m_context->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_quadElementsVbo)); |
+ GLC(m_context, m_context->bufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW)); |
+ |
+ m_initialized = true; |
+} |
+ |
+GeometryBinding::~GeometryBinding() |
+{ |
+ GLC(m_context, m_context->deleteBuffer(m_quadVerticesVbo)); |
+ GLC(m_context, m_context->deleteBuffer(m_quadElementsVbo)); |
+} |
+ |
+void GeometryBinding::prepareForDraw() |
+{ |
+ GLC(m_context, m_context->bindBuffer(GL_ARRAY_BUFFER, quadVerticesVbo())); |
+ GLC(m_context, m_context->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, quadElementsVbo())); |
+ unsigned offset = 0; |
+ GLC(m_context, m_context->vertexAttribPointer(positionAttribLocation(), 3, GL_FLOAT, false, 5 * sizeof(float), offset)); |
+ offset += 3 * sizeof(float); |
+ GLC(m_context, m_context->vertexAttribPointer(texCoordAttribLocation(), 2, GL_FLOAT, false, 5 * sizeof(float), offset)); |
+ GLC(m_context, m_context->enableVertexAttribArray(positionAttribLocation())); |
+ GLC(m_context, m_context->enableVertexAttribArray(texCoordAttribLocation())); |
+} |
+ |
+} // namespace WebCore |
+ |
+#endif // USE(ACCELERATED_COMPOSITING) |