1GL_AMD_performance_monitor
2http://www.opengl.org/registry/specs/AMD/performance_monitor.txt
3GL_AMD_performance_monitor
4	GL_COUNTER_TYPE_AMD 0x8BC0
5	GL_COUNTER_RANGE_AMD 0x8BC1
6	GL_UNSIGNED_INT64_AMD 0x8BC2
7	GL_PERCENTAGE_AMD 0x8BC3
8	GL_PERFMON_RESULT_AVAILABLE_AMD 0x8BC4
9	GL_PERFMON_RESULT_SIZE_AMD 0x8BC5
10	GL_PERFMON_RESULT_AMD 0x8BC6
11	void glBeginPerfMonitorAMD (GLuint monitor)
12	void glDeletePerfMonitorsAMD (GLsizei n, GLuint* monitors)
13	void glEndPerfMonitorAMD (GLuint monitor)
14	void glGenPerfMonitorsAMD (GLsizei n, GLuint* monitors)
15	void glGetPerfMonitorCounterDataAMD (GLuint monitor, GLenum pname, GLsizei dataSize, GLuint* data, GLint *bytesWritten)
16	void glGetPerfMonitorCounterInfoAMD (GLuint group, GLuint counter, GLenum pname, void* data)
17	void glGetPerfMonitorCounterStringAMD (GLuint group, GLuint counter, GLsizei bufSize, GLsizei* length, GLchar *counterString)
18	void glGetPerfMonitorCountersAMD (GLuint group, GLint* numCounters, GLint *maxActiveCounters, GLsizei countersSize, GLuint *counters)
19	void glGetPerfMonitorGroupStringAMD (GLuint group, GLsizei bufSize, GLsizei* length, GLchar *groupString)
20	void glGetPerfMonitorGroupsAMD (GLint* numGroups, GLsizei groupsSize, GLuint *groups)
21	void glSelectPerfMonitorCountersAMD (GLuint monitor, GLboolean enable, GLuint group, GLint numCounters, GLuint* counterList)
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