GL_ARB_shader_image_load_store
http://www.opengl.org/registry/specs/gl/ARB/shader_image_load_store.txt
GL_ARB_shader_image_load_store
	GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001
	GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002
	GL_UNIFORM_BARRIER_BIT 0x00000004
	GL_TEXTURE_FETCH_BARRIER_BIT 0x00000008
	GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020
	GL_COMMAND_BARRIER_BIT 0x00000040
	GL_PIXEL_BUFFER_BARRIER_BIT 0x00000080
	GL_TEXTURE_UPDATE_BARRIER_BIT 0x00000100
	GL_BUFFER_UPDATE_BARRIER_BIT 0x00000200
	GL_FRAMEBUFFER_BARRIER_BIT 0x00000400
	GL_TRANSFORM_FEEDBACK_BARRIER_BIT 0x00000800
	GL_ATOMIC_COUNTER_BARRIER_BIT 0x00001000
	GL_MAX_IMAGE_UNITS 0x8F38
	GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS 0x8F39
	GL_IMAGE_BINDING_NAME 0x8F3A
	GL_IMAGE_BINDING_LEVEL 0x8F3B
	GL_IMAGE_BINDING_LAYERED 0x8F3C
	GL_IMAGE_BINDING_LAYER 0x8F3D
	GL_IMAGE_BINDING_ACCESS 0x8F3E
	GL_IMAGE_1D 0x904C
	GL_IMAGE_2D 0x904D
	GL_IMAGE_3D 0x904E
	GL_IMAGE_2D_RECT 0x904F
	GL_IMAGE_CUBE 0x9050
	GL_IMAGE_BUFFER 0x9051
	GL_IMAGE_1D_ARRAY 0x9052
	GL_IMAGE_2D_ARRAY 0x9053
	GL_IMAGE_CUBE_MAP_ARRAY 0x9054
	GL_IMAGE_2D_MULTISAMPLE 0x9055
	GL_IMAGE_2D_MULTISAMPLE_ARRAY 0x9056
	GL_INT_IMAGE_1D 0x9057
	GL_INT_IMAGE_2D 0x9058
	GL_INT_IMAGE_3D 0x9059
	GL_INT_IMAGE_2D_RECT 0x905A
	GL_INT_IMAGE_CUBE 0x905B
	GL_INT_IMAGE_BUFFER 0x905C
	GL_INT_IMAGE_1D_ARRAY 0x905D
	GL_INT_IMAGE_2D_ARRAY 0x905E
	GL_INT_IMAGE_CUBE_MAP_ARRAY 0x905F
	GL_INT_IMAGE_2D_MULTISAMPLE 0x9060
	GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x9061
	GL_UNSIGNED_INT_IMAGE_1D 0x9062
	GL_UNSIGNED_INT_IMAGE_2D 0x9063
	GL_UNSIGNED_INT_IMAGE_3D 0x9064
	GL_UNSIGNED_INT_IMAGE_2D_RECT 0x9065
	GL_UNSIGNED_INT_IMAGE_CUBE 0x9066
	GL_UNSIGNED_INT_IMAGE_BUFFER 0x9067
	GL_UNSIGNED_INT_IMAGE_1D_ARRAY 0x9068
	GL_UNSIGNED_INT_IMAGE_2D_ARRAY 0x9069
	GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY 0x906A
	GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE 0x906B
	GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x906C
	GL_MAX_IMAGE_SAMPLES 0x906D
	GL_IMAGE_BINDING_FORMAT 0x906E
	GL_IMAGE_FORMAT_COMPATIBILITY_TYPE 0x90C7
	GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE 0x90C8
	GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS 0x90C9
	GL_MAX_VERTEX_IMAGE_UNIFORMS 0x90CA
	GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS 0x90CB
	GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS 0x90CC
	GL_MAX_GEOMETRY_IMAGE_UNIFORMS 0x90CD
	GL_MAX_FRAGMENT_IMAGE_UNIFORMS 0x90CE
	GL_MAX_COMBINED_IMAGE_UNIFORMS 0x90CF
	GL_ALL_BARRIER_BITS 0xFFFFFFFF
	void glBindImageTexture (GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format)
	void glMemoryBarrier (GLbitfield barriers)