217 struct State  struct
219 	Color colorClearValue;
220 	GLclampf depthClearValue;
221 	int stencilClearValue;
223 	bool cullFaceEnabled;
224 	GLenum cullMode;
225 	GLenum frontFace;
226 	bool depthTestEnabled;
227 	GLenum depthFunc;
228 	bool blendEnabled;
229 	GLenum sourceBlendRGB;
230 	GLenum destBlendRGB;
231 	GLenum sourceBlendAlpha;
232 	GLenum destBlendAlpha;
233 	GLenum blendEquationRGB;
234 	GLenum blendEquationAlpha;
235 	bool stencilTestEnabled;
236 	GLenum stencilFunc;
237 	GLint stencilRef;
238 	GLuint stencilMask;
239 	GLenum stencilFail;
240 	GLenum stencilPassDepthFail;
241 	GLenum stencilPassDepthPass;
242 	GLuint stencilWritemask;
243 	bool polygonOffsetFillEnabled;
244 	GLfloat polygonOffsetFactor;
245 	GLfloat polygonOffsetUnits;
246 	bool sampleAlphaToCoverageEnabled;
247 	bool sampleCoverageEnabled;
248 	GLclampf sampleCoverageValue;
249 	bool sampleCoverageInvert;
250 	bool scissorTestEnabled;
251 	bool ditherEnabled;
252 	GLenum shadeModel;
254 	GLfloat lineWidth;
256 	GLenum generateMipmapHint;
257 	GLenum perspectiveCorrectionHint;
258 	GLenum fogHint;
260 	GLint viewportX;
261 	GLint viewportY;
262 	GLsizei viewportWidth;
263 	GLsizei viewportHeight;
264 	float zNear;
265 	float zFar;
267 	GLint scissorX;
268 	GLint scissorY;
269 	GLsizei scissorWidth;
270 	GLsizei scissorHeight;
272 	bool colorMaskRed;
273 	bool colorMaskGreen;
274 	bool colorMaskBlue;
275 	bool colorMaskAlpha;
276 	bool depthMask;
278 	unsigned int activeSampler;   // Active texture unit selector - GL_TEXTURE0
279 	gl::BindingPointer<Buffer> arrayBuffer;
280 	gl::BindingPointer<Buffer> elementArrayBuffer;
304 	void markAllStateDirty();  argument
306 	// State manipulation  argument