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60	// Cleans up all resources hold by the GL Context	60	// Cleans up all resources hold by the GL Context
61	void KWINGLUTILS_EXPORT cleanupGL();	61	void KWINGLUTILS_EXPORT cleanupGL();
62		62
63	// Number of supported texture units	63	// Number of supported texture units
64	extern KWINGLUTILS_EXPORT int glTextureUnitsCount;	64	extern KWINGLUTILS_EXPORT int glTextureUnitsCount;
65		65
66		66
67	bool KWINGLUTILS_EXPORT hasGLVersion(int major, int minor, int release = 0);	67	bool KWINGLUTILS_EXPORT hasGLVersion(int major, int minor, int release = 0);
68	bool KWINGLUTILS_EXPORT hasGLXVersion(int major, int minor, int release = 0);
69	bool KWINGLUTILS_EXPORT hasEGLVersion(int major, int minor, int release = 0);	68	bool KWINGLUTILS_EXPORT hasEGLVersion(int major, int minor, int release = 0);
70	// use for both OpenGL and GLX extensions	69	// use for both OpenGL and GLX extensions
71	bool KWINGLUTILS_EXPORT hasGLExtension(const QByteArray &extension);	70	bool KWINGLUTILS_EXPORT hasGLExtension(const QByteArray &extension);
72		71
73	// detect OpenGL error (add to various places in code to pinpoint the place)	72	// detect OpenGL error (add to various places in code to pinpoint the place)
74	bool KWINGLUTILS_EXPORT checkGLError(const char* txt);	73	bool KWINGLUTILS_EXPORT checkGLError(const char* txt);
75		74
76	inline bool KWINGLUTILS_EXPORT isPowerOfTwo(int x)	75	inline bool KWINGLUTILS_EXPORT isPowerOfTwo(int x)
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