334 struct State  struct
336 	Color colorClearValue;
337 	GLclampf depthClearValue;
338 	int stencilClearValue;
340 	bool cullFaceEnabled;
341 	GLenum cullMode;
342 	GLenum frontFace;
343 	bool depthTestEnabled;
344 	GLenum depthFunc;
345 	bool blendEnabled;
346 	GLenum sourceBlendRGB;
347 	GLenum destBlendRGB;
348 	GLenum sourceBlendAlpha;
349 	GLenum destBlendAlpha;
350 	GLenum blendEquationRGB;
351 	GLenum blendEquationAlpha;
352 	Color blendColor;
353 	bool stencilTestEnabled;
354 	GLenum stencilFunc;
355 	GLint stencilRef;
356 	GLuint stencilMask;
357 	GLenum stencilFail;
358 	GLenum stencilPassDepthFail;
359 	GLenum stencilPassDepthPass;
360 	GLuint stencilWritemask;
361 	GLenum stencilBackFunc;
362 	GLint stencilBackRef;
363 	GLuint stencilBackMask;
364 	GLenum stencilBackFail;
365 	GLenum stencilBackPassDepthFail;
366 	GLenum stencilBackPassDepthPass;
367 	GLuint stencilBackWritemask;
368 	bool polygonOffsetFillEnabled;
369 	GLfloat polygonOffsetFactor;
370 	GLfloat polygonOffsetUnits;
371 	bool sampleAlphaToCoverageEnabled;
372 	bool sampleCoverageEnabled;
373 	GLclampf sampleCoverageValue;
374 	bool sampleCoverageInvert;
375 	bool scissorTestEnabled;
376 	bool ditherEnabled;
377 	bool primitiveRestartFixedIndexEnabled;
378 	bool rasterizerDiscardEnabled;
379 	bool colorLogicOpEnabled;
380 	GLenum logicalOperation;
382 	GLfloat lineWidth;
384 	GLenum generateMipmapHint;
385 	GLenum fragmentShaderDerivativeHint;
386 	GLenum textureFilteringHint;
388 	GLint viewportX;
389 	GLint viewportY;
390 	GLsizei viewportWidth;
391 	GLsizei viewportHeight;
392 	float zNear;
393 	float zFar;
395 	GLint scissorX;
396 	GLint scissorY;
397 	GLsizei scissorWidth;
398 	GLsizei scissorHeight;
400 	bool colorMaskRed;
401 	bool colorMaskGreen;
402 	bool colorMaskBlue;
403 	bool colorMaskAlpha;
404 	bool depthMask;
406 	unsigned int activeSampler;   // Active texture unit selector - GL_TEXTURE0
407 	gl::BindingPointer<Buffer> arrayBuffer;
408 	gl::BindingPointer<Buffer> copyReadBuffer;
409 	gl::BindingPointer<Buffer> copyWriteBuffer;
410 	gl::BindingPointer<Buffer> pixelPackBuffer;
411 	gl::BindingPointer<Buffer> pixelUnpackBuffer;
412 	gl::BindingPointer<Buffer> genericUniformBuffer;
413 	gl::BindingPointer<Buffer> genericTransformFeedbackBuffer;
414 	BufferBinding uniformBuffers[MAX_UNIFORM_BUFFER_BINDINGS];
416 	GLuint readFramebuffer;
417 	GLuint drawFramebuffer;
441 	void markAllStateDirty();  argument
443 	// State manipulation  argument