1 files changed, 100 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/renderer/gl/VertexArrayGL.h b/gfx/angle/src/libANGLE/renderer/gl/VertexArrayGL.h
new file mode 100755
index 000000000..261b63d91
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/gl/VertexArrayGL.h
@@ -0,0 +1,100 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// VertexArrayGL.h: Defines the class interface for VertexArrayGL.
+
+#ifndef LIBANGLE_RENDERER_GL_VERTEXARRAYGL_H_
+#define LIBANGLE_RENDERER_GL_VERTEXARRAYGL_H_
+
+#include "libANGLE/renderer/VertexArrayImpl.h"
+
+namespace rx
+{
+
+class FunctionsGL;
+class StateManagerGL;
+
+class VertexArrayGL : public VertexArrayImpl
+{
+  public:
+    VertexArrayGL(const gl::VertexArrayState &data,
+                  const FunctionsGL *functions,
+                  StateManagerGL *stateManager);
+    ~VertexArrayGL() override;
+
+    gl::Error syncDrawArraysState(const gl::AttributesMask &activeAttributesMask,
+                                  GLint first,
+                                  GLsizei count,
+                                  GLsizei instanceCount) const;
+    gl::Error syncDrawElementsState(const gl::AttributesMask &activeAttributesMask,
+                                    GLsizei count,
+                                    GLenum type,
+                                    const GLvoid *indices,
+                                    GLsizei instanceCount,
+                                    bool primitiveRestartEnabled,
+                                    const GLvoid **outIndices) const;
+
+    GLuint getVertexArrayID() const;
+    GLuint getAppliedElementArrayBufferID() const;
+
+    void syncState(const gl::VertexArray::DirtyBits &dirtyBits) override;
+
+  private:
+    gl::Error syncDrawState(const gl::AttributesMask &activeAttributesMask,
+                            GLint first,
+                            GLsizei count,
+                            GLenum type,
+                            const GLvoid *indices,
+                            GLsizei instanceCount,
+                            bool primitiveRestartEnabled,
+                            const GLvoid **outIndices) const;
+
+    // Apply index data, only sets outIndexRange if attributesNeedStreaming is true
+    gl::Error syncIndexData(GLsizei count,
+                            GLenum type,
+                            const GLvoid *indices,
+                            bool primitiveRestartEnabled,
+                            bool attributesNeedStreaming,
+                            gl::IndexRange *outIndexRange,
+                            const GLvoid **outIndices) const;
+
+    // Returns the amount of space needed to stream all attributes that need streaming
+    // and the data size of the largest attribute
+    void computeStreamingAttributeSizes(const gl::AttributesMask &activeAttributesMask,
+                                        GLsizei instanceCount,
+                                        const gl::IndexRange &indexRange,
+                                        size_t *outStreamingDataSize,
+                                        size_t *outMaxAttributeDataSize) const;
+
+    // Stream attributes that have client data
+    gl::Error streamAttributes(const gl::AttributesMask &activeAttributesMask,
+                               GLsizei instanceCount,
+                               const gl::IndexRange &indexRange) const;
+
+    void updateNeedsStreaming(size_t attribIndex);
+    void updateAttribEnabled(size_t attribIndex);
+    void updateAttribPointer(size_t attribIndex);
+
+    const FunctionsGL *mFunctions;
+    StateManagerGL *mStateManager;
+
+    GLuint mVertexArrayID;
+
+    mutable BindingPointer<gl::Buffer> mAppliedElementArrayBuffer;
+    mutable std::vector<gl::VertexAttribute> mAppliedAttributes;
+
+    mutable size_t mStreamingElementArrayBufferSize;
+    mutable GLuint mStreamingElementArrayBuffer;
+
+    mutable size_t mStreamingArrayBufferSize;
+    mutable GLuint mStreamingArrayBuffer;
+
+    gl::AttributesMask mAttributesNeedStreaming;
+};
+
+}
+
+#endif // LIBANGLE_RENDERER_GL_VERTEXARRAYGL_H_