304 struct State  struct
306 	Color colorClearValue;
307 	GLclampf depthClearValue;
308 	int stencilClearValue;
310 	bool cullFaceEnabled;
311 	GLenum cullMode;
312 	GLenum frontFace;
313 	bool depthTestEnabled;
314 	GLenum depthFunc;
315 	bool blendEnabled;
316 	GLenum sourceBlendRGB;
317 	GLenum destBlendRGB;
318 	GLenum sourceBlendAlpha;
319 	GLenum destBlendAlpha;
320 	GLenum blendEquationRGB;
321 	GLenum blendEquationAlpha;
322 	Color blendColor;
323 	bool stencilTestEnabled;
324 	GLenum stencilFunc;
325 	GLint stencilRef;
326 	GLuint stencilMask;
327 	GLenum stencilFail;
328 	GLenum stencilPassDepthFail;
329 	GLenum stencilPassDepthPass;
330 	GLuint stencilWritemask;
331 	GLenum stencilBackFunc;
332 	GLint stencilBackRef;
333 	GLuint stencilBackMask;
334 	GLenum stencilBackFail;
335 	GLenum stencilBackPassDepthFail;
336 	GLenum stencilBackPassDepthPass;
337 	GLuint stencilBackWritemask;
338 	bool polygonOffsetFillEnabled;
339 	GLfloat polygonOffsetFactor;
340 	GLfloat polygonOffsetUnits;
341 	bool sampleAlphaToCoverageEnabled;
342 	bool sampleCoverageEnabled;
343 	GLclampf sampleCoverageValue;
344 	bool sampleCoverageInvert;
345 	bool scissorTestEnabled;
346 	bool ditherEnabled;
347 	bool primitiveRestartFixedIndexEnabled;
348 	bool rasterizerDiscardEnabled;
349 	bool colorLogicOpEnabled;
350 	GLenum logicalOperation;
352 	GLfloat lineWidth;
354 	GLenum generateMipmapHint;
355 	GLenum fragmentShaderDerivativeHint;
356 	GLenum textureFilteringHint;
358 	GLint viewportX;
359 	GLint viewportY;
360 	GLsizei viewportWidth;
361 	GLsizei viewportHeight;
362 	float zNear;
363 	float zFar;
365 	GLint scissorX;
366 	GLint scissorY;
367 	GLsizei scissorWidth;
368 	GLsizei scissorHeight;
370 	bool colorMaskRed;
371 	bool colorMaskGreen;
372 	bool colorMaskBlue;
373 	bool colorMaskAlpha;
374 	bool depthMask;
376 	unsigned int activeSampler;   // Active texture unit selector - GL_TEXTURE0
377 	gl::BindingPointer<Buffer> arrayBuffer;
378 	gl::BindingPointer<Buffer> copyReadBuffer;
379 	gl::BindingPointer<Buffer> copyWriteBuffer;
380 	gl::BindingPointer<Buffer> pixelPackBuffer;
381 	gl::BindingPointer<Buffer> pixelUnpackBuffer;
382 	gl::BindingPointer<Buffer> genericUniformBuffer;
383 	gl::BindingPointer<Buffer> genericTransformFeedbackBuffer;
384 	BufferBinding uniformBuffers[MAX_UNIFORM_BUFFER_BINDINGS];
386 	GLuint readFramebuffer;
387 	GLuint drawFramebuffer;
411 	void markAllStateDirty();  argument
413 	// State manipulation  argument