Adding Blink bindings for WebGL 2

Source/core/html/canvas/WebGL2RenderingContextBase.h

Index: Source/core/html/canvas/WebGL2RenderingContextBase.h
diff --git a/Source/core/html/canvas/WebGL2RenderingContextBase.h b/Source/core/html/canvas/WebGL2RenderingContextBase.h
new file mode 100644
index 0000000000000000000000000000000000000000..f2ac3bef17721f035e549096d3385323a7065519
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+++ b/Source/core/html/canvas/WebGL2RenderingContextBase.h
@@ -0,0 +1,176 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebGL2RenderingContextBase_h
+#define WebGL2RenderingContextBase_h
+
+#include "core/html/canvas/WebGLExtension.h"
+#include "core/html/canvas/WebGLRenderingContextBase.h"
+#include "wtf/PassRefPtr.h"
+
+namespace blink {
+
+class WebGLTexture;
+
+class WebGLActiveInfo;
+class WebGLBuffer;
+class WebGLProgram;
+class WebGLQuery;
+class WebGLSampler;
+class WebGLSync;
+class WebGLTransformFeedback;
+class WebGLUniformLocation;
+class WebGLVertexArrayObject;
+
+class WebGL2RenderingContextBase : public WebGLRenderingContextBase {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WebGL2RenderingContextBase);
+public:
+    virtual ~WebGL2RenderingContextBase();
+
+    /* Buffer objects */
+    void copyBufferSubData(GLenum, GLenum, GLintptr, GLintptr, GLsizeiptr);
+    void getBufferSubData(GLenum target, GLintptr offset, DOMArrayBuffer* returnedData);
+
+    /* Framebuffer objects */
+    void blitFramebuffer(GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum);
+    void framebufferTextureLayer(GLenum, GLenum, const WebGLTexture*, GLint, GLint);
+    ScriptValue getInternalformatParameter(ScriptState*, GLenum, GLenum, GLenum);
+    void invalidateFramebuffer(GLenum, Vector<GLenum>&);
+    void invalidateSubFramebuffer(GLenum, Vector<GLenum>&, GLint, GLint, GLsizei, GLsizei);
+    void readBuffer(GLenum);
+
+    /* Renderbuffer objects */
+    void renderbufferStorageMultisample(GLenum, GLsizei, GLenum, GLsizei, GLsizei);
+
+    /* Texture objects */
+    void texStorage2D(GLenum, GLsizei, GLenum, GLsizei, GLsizei);
+    void texStorage3D(GLenum, GLsizei, GLenum, GLsizei, GLsizei, GLsizei);
+    void texImage3D(GLenum, GLint, GLint, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, DOMArrayBufferView*);
+    void texSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, DOMArrayBufferView*);
+    void texSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLenum, GLenum, ImageData*);
+    void texSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLenum, GLenum, HTMLImageElement*);
+    void texSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLenum, GLenum, HTMLCanvasElement*);
+    void texSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLenum, GLenum, HTMLVideoElement*);
+    void copyTexSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLint, GLint, GLsizei, GLsizei);
+    void compressedTexImage3D(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLsizei, DOMArrayBufferView*);
+    void compressedTexSubImage3D(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLsizei, DOMArrayBufferView*);
+
+    /* Programs and shaders */
+    GLint getFragDataLocation(WebGLProgram*, const String&);
+
+    /* Uniforms and attributes */
+    void uniform1ui(const WebGLUniformLocation*, GLuint);
+    void uniform2ui(const WebGLUniformLocation*, GLuint, GLuint);
+    void uniform3ui(const WebGLUniformLocation*, GLuint, GLuint, GLuint);
+    void uniform4ui(const WebGLUniformLocation*, GLuint, GLuint, GLuint, GLuint);
+    void uniform1uiv(const WebGLUniformLocation*, Vector<GLuint>&);
+    void uniform2uiv(const WebGLUniformLocation*, Vector<GLuint>&);
+    void uniform3uiv(const WebGLUniformLocation*, Vector<GLuint>&);
+    void uniform4uiv(const WebGLUniformLocation*, Vector<GLuint>&);
+    void uniformMatrix2x3fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix2x3fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+    void uniformMatrix3x2fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix3x2fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+    void uniformMatrix2x4fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix2x4fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+    void uniformMatrix4x2fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix4x2fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+    void uniformMatrix3x4fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix3x4fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+    void uniformMatrix4x3fv(const WebGLUniformLocation*, GLboolean, DOMFloat32Array*);
+    void uniformMatrix4x3fv(const WebGLUniformLocation*, GLboolean, Vector<GLfloat>&);
+
+    void vertexAttribI4i(GLuint, GLint, GLint, GLint, GLint);
+    void vertexAttribI4iv(GLuint, const Vector<GLint>&);
+    void vertexAttribI4ui(GLuint, GLuint, GLuint, GLuint, GLuint);
+    void vertexAttribI4uiv(GLuint, const Vector<GLuint>&);
+    void vertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset);
+
+    /* Writing to the drawing buffer */
+    void vertexAttribDivisor(GLuint, GLuint);
+    void drawArraysInstanced(GLenum, GLint, GLsizei, GLsizei);
+    void drawElementsInstanced(GLenum, GLsizei, GLenum, GLintptr, GLsizei);
+    void drawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, GLintptr offset);
+
+    /* Multiple Render Targets */
+    void drawBuffers(const Vector<GLenum>&);
+    void clearBufferiv(GLenum, GLint, DOMInt32Array*);
+    void clearBufferiv(GLenum, GLint, const Vector<GLint>&);
+    void clearBufferuiv(GLenum, GLint, DOMUint32Array*);
+    void clearBufferuiv(GLenum, GLint, const Vector<GLuint>&);
+    void clearBufferfv(GLenum, GLint, DOMFloat32Array*);
+    void clearBufferfv(GLenum, GLint, const Vector<GLfloat>&);
+    void clearBufferfi(GLenum, GLint, GLfloat, GLint);
+
+    /* Query Objects */
+    PassRefPtr<WebGLQuery> createQuery();
+    void deleteQuery(WebGLQuery*);
+    GLboolean isQuery(WebGLQuery*);
+    void beginQuery(GLenum, WebGLQuery*);
+    void endQuery(GLenum);
+    PassRefPtr<WebGLQuery> getQuery(GLenum, GLenum);
+    ScriptValue getQueryParameter(ScriptState*, WebGLQuery*, GLenum);
+
+    /* Sampler Objects */
+    PassRefPtr<WebGLSampler> createSampler();
+    void deleteSampler(WebGLSampler*);
+    GLboolean isSampler(WebGLSampler*);
+    void bindSampler(GLuint, WebGLSampler*);
+    void samplerParameteri(WebGLSampler*, GLenum, GLint);
+    void samplerParameterf(WebGLSampler*, GLenum, GLfloat);
+    ScriptValue getSamplerParameter(ScriptState*, WebGLSampler*, GLenum);
+
+    /* Sync objects */
+    PassRefPtr<WebGLSync> fenceSync(GLenum, GLbitfield);
+    GLboolean isSync(WebGLSync*);
+    void deleteSync(WebGLSync*);
+    GLenum clientWaitSync(WebGLSync*, GLbitfield, GLuint);
+    void waitSync(WebGLSync*, GLbitfield, GLuint);
+
+    ScriptValue getSyncParameter(ScriptState*, WebGLSync*, GLenum);
+
+    /* Transform Feedback */
+    PassRefPtr<WebGLTransformFeedback> createTransformFeedback();
+    void deleteTransformFeedback(WebGLTransformFeedback*);
+    GLboolean isTransformFeedback(WebGLTransformFeedback*);
+    void bindTransformFeedback(GLenum, WebGLTransformFeedback*);
+    void beginTransformFeedback(GLenum);
+    void endTransformFeedback();
+    void transformFeedbackVaryings(WebGLProgram*, const Vector<String>&, GLenum);
+    PassRefPtr<WebGLActiveInfo> getTransformFeedbackVarying(WebGLProgram*, GLuint);
+    void pauseTransformFeedback();
+    void resumeTransformFeedback();
+
+    /* Uniform Buffer Objects and Transform Feedback Buffers */
+    void bindBufferBase(GLenum, GLuint, WebGLBuffer*);
+    void bindBufferRange(GLenum, GLuint, WebGLBuffer*, GLintptr, GLsizeiptr);
+    ScriptValue getIndexedParameter(ScriptState*, GLenum, GLuint);
+    Vector<GLuint> getUniformIndices(WebGLProgram*, const Vector<String>&);
+    Vector<GLint> getActiveUniforms(WebGLProgram*, const Vector<GLuint>&, GLenum);
+    GLuint getUniformBlockIndex(WebGLProgram*, const String&);
+    ScriptValue getActiveUniformBlockParameter(ScriptState*, WebGLProgram*, GLuint, GLenum);
+    String getActiveUniformBlockName(WebGLProgram*, GLuint);
+    void uniformBlockBinding(WebGLProgram*, GLuint, GLuint);
+
+    /* Vertex Array Objects */
+    PassRefPtr<WebGLVertexArrayObjectOES> createVertexArray();
+    void deleteVertexArray(WebGLVertexArrayObjectOES*);
+    GLboolean isVertexArray(WebGLVertexArrayObjectOES*);
+    void bindVertexArray(WebGLVertexArrayObjectOES*);
+
+    void trace(Visitor*) override;
+
+protected:
+    WebGL2RenderingContextBase(HTMLCanvasElement*, PassOwnPtr<blink::WebGraphicsContext3D>, const WebGLContextAttributes& requestedAttributes);
+
+    bool validateClearBuffer(const char* functionName, GLenum buffer, GLsizei length);
+};
+
+DEFINE_TYPE_CASTS(WebGL2RenderingContextBase, CanvasRenderingContext, context,
+    context->is3d() && WebGLRenderingContextBase::getWebGLVersion(context) >= 2,
+    context.is3d() && WebGLRenderingContextBase::getWebGLVersion(&context) >= 2);
+
+} // namespace blink
+
+#endif