GL_ARB_program_interface_query
http://www.opengl.org/registry/specs/gl/ARB/program_interface_query.txt
GL_ARB_program_interface_query
	GL_UNIFORM 0x92E1
	GL_UNIFORM_BLOCK 0x92E2
	GL_PROGRAM_INPUT 0x92E3
	GL_PROGRAM_OUTPUT 0x92E4
	GL_BUFFER_VARIABLE 0x92E5
	GL_SHADER_STORAGE_BLOCK 0x92E6
	GL_IS_PER_PATCH 0x92E7
	GL_VERTEX_SUBROUTINE 0x92E8
	GL_TESS_CONTROL_SUBROUTINE 0x92E9
	GL_TESS_EVALUATION_SUBROUTINE 0x92EA
	GL_GEOMETRY_SUBROUTINE 0x92EB
	GL_FRAGMENT_SUBROUTINE 0x92EC
	GL_COMPUTE_SUBROUTINE 0x92ED
	GL_VERTEX_SUBROUTINE_UNIFORM 0x92EE
	GL_TESS_CONTROL_SUBROUTINE_UNIFORM 0x92EF
	GL_TESS_EVALUATION_SUBROUTINE_UNIFORM 0x92F0
	GL_GEOMETRY_SUBROUTINE_UNIFORM 0x92F1
	GL_FRAGMENT_SUBROUTINE_UNIFORM 0x92F2
	GL_COMPUTE_SUBROUTINE_UNIFORM 0x92F3
	GL_TRANSFORM_FEEDBACK_VARYING 0x92F4
	GL_ACTIVE_RESOURCES 0x92F5
	GL_MAX_NAME_LENGTH 0x92F6
	GL_MAX_NUM_ACTIVE_VARIABLES 0x92F7
	GL_MAX_NUM_COMPATIBLE_SUBROUTINES 0x92F8
	GL_NAME_LENGTH 0x92F9
	GL_TYPE 0x92FA
	GL_ARRAY_SIZE 0x92FB
	GL_OFFSET 0x92FC
	GL_BLOCK_INDEX 0x92FD
	GL_ARRAY_STRIDE 0x92FE
	GL_MATRIX_STRIDE 0x92FF
	GL_IS_ROW_MAJOR 0x9300
	GL_ATOMIC_COUNTER_BUFFER_INDEX 0x9301
	GL_BUFFER_BINDING 0x9302
	GL_BUFFER_DATA_SIZE 0x9303
	GL_NUM_ACTIVE_VARIABLES 0x9304
	GL_ACTIVE_VARIABLES 0x9305
	GL_REFERENCED_BY_VERTEX_SHADER 0x9306
	GL_REFERENCED_BY_TESS_CONTROL_SHADER 0x9307
	GL_REFERENCED_BY_TESS_EVALUATION_SHADER 0x9308
	GL_REFERENCED_BY_GEOMETRY_SHADER 0x9309
	GL_REFERENCED_BY_FRAGMENT_SHADER 0x930A
	GL_REFERENCED_BY_COMPUTE_SHADER 0x930B
	GL_TOP_LEVEL_ARRAY_SIZE 0x930C
	GL_TOP_LEVEL_ARRAY_STRIDE 0x930D
	GL_LOCATION 0x930E
	GL_LOCATION_INDEX 0x930F
	void glGetProgramInterfaceiv (GLuint program, GLenum programInterface, GLenum pname, GLint* params)
	GLuint glGetProgramResourceIndex (GLuint program, GLenum programInterface, const GLchar* name)
	GLint glGetProgramResourceLocation (GLuint program, GLenum programInterface, const GLchar* name)
	GLint glGetProgramResourceLocationIndex (GLuint program, GLenum programInterface, const GLchar* name)
	void glGetProgramResourceName (GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei* length, GLchar *name)
	void glGetProgramResourceiv (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum* props, GLsizei bufSize, GLsizei *length, GLint *params)