ATI Catalyst 9.1: 10 New OpenGL Extensions


ATI Catalyst Graphics Drivers

OpenGL 3.0



Here is, my friends, the list of OpenGL extensions exposed by the graphics driver Catalyst 9.1 for a Radeon HD 4850 under Windows XP SP2 32-bit.

Compared to Catalyst 8.12, Catalyst 9.1 introduces ten new OpenGL extensions (some of them are not really new since they are ARB version of GL_EXT…):

Let’s see what these new extensions bring.

GL_ARB_framebuffer_object is the ARB version of GL_EXT_framebuffer_object but actually is more than that. GL_ARB_framebuffer_object can be seen as the unification of GL_EXT framebuffers extensions: GL_EXT_framebuffer_object, GL_EXT_framebuffer_blit and GL_EXT_framebuffer_multisample.

GL_ARB_framebuffer_sRGB (ARB version of GL_EXT_framebuffer_sRGB) is an interesting extension and allows to use a non-linear color space to match monitor characteristics. No need to apply a gamma correction in shaders.

GL_ARB_map_buffer_range to allow greater performance when an application only needs to write to a sub-range of a buffer object.

GL_ARB_texture_compression_rgtc (ARB version of GL_EXT_texture_compression_rgtc) offers a compressed texture format adapted for storing compressed normal maps.

GL_ARB_texture_rg is a new one (red) and two (red-green) channels internal texture format that aims at replacing the old luminance-alpha format. This format can be used for texturing as well as for rendering into with FBO (framebuffer object).

GL_EXT_texture_array adds the functions to create one and two dimensional array of textures. So you can store several textures (same size) in a array they are seen as an unique texture sampler in the shader.

GL_EXT_texture_integer makes it possible to store true integers (non-noralized, signed and unsigned) in texture and retrieve these integer values in a shader.

GL_NV_conditional_render provides support for conditional rendering based on the results of an occlusion query.

WGL_ARB_create_context allows to create an OpenGL 3.0 rendering context (see HERE for an example).

Catalyst 9.1 + GPU Caps Viewer

Catalyst 9.1 + GPU Caps Viewer

Catalyst 9.1 + GPU Caps Viewer


All GPU Caps Viewer’s tech demos work well on a Radeon HD 4850 + Catalyst 9.1 (once workarounds have been done: see HERE).

Catalyst 9.1, like all Catalyst from 8.8 still slow down the GPU when FurMark is detected (see here and here for more detail).

Graphics driver information:
– Operating System: Windows XP 32-bit SP2
– Drivers Version: 8.573.0.0 – Catalyst 09.1 (1-13-2009)
– ATI Catalyst Version String: 09.1
– ATI Catalyst Release Version String: 8.573-090113a-074230C-ATI
– OpenGL Renderer: ATI Radeon HD 4800 Series
– OpenGL Version: 3.0
– GLSL (OpenGL Shading Language) Version: 1.20 (bug! should be fixed in a next version of Catalyst…)
– ARB Texture Units: 8
– Vertex Shader Texture Units: 16
– Pixel Shader Texture Units: 32
– Geometry Shader Texture Units: 0
– Max Texture Size: 8192×8192
– Max Anisotropic Filtering Value: X16.0
– Max Point Sprite Size: 8192.0
– Max Dynamic Lights: 8
– Max Viewport Size: 8192×8192
– Max Vertex Uniform Components: 512
– Max Fragment Uniform Components: 512
– Max Geometry Uniform Components: 0
– Max Varying Float: 68
– Max Vertex Bindable Uniforms: 0
– Max Fragment Bindable Uniforms: 0
– Max Geometry Bindable Uniforms: 0
– MSAA: 1X
– MSAA: 2X
– MSAA: 4X
– MSAA: 8X

OpenGL Extensions: 130 extensions

  • GL_AMDX_vertex_shader_tessellator
  • GL_AMD_performance_monitor
  • GL_AMD_texture_texture4
  • GL_ARB_color_buffer_float
  • GL_ARB_depth_buffer_float
  • GL_ARB_depth_texture
  • GL_ARB_draw_buffers
  • GL_ARB_draw_instanced
  • GL_ARB_fragment_program
  • GL_ARB_fragment_program_shadow
  • GL_ARB_fragment_shader
  • GL_ARB_framebuffer_object
  • GL_ARB_framebuffer_sRGB
  • GL_ARB_half_float_pixel
  • GL_ARB_half_float_vertex
  • GL_ARB_instanced_arrays
  • GL_ARB_map_buffer_range
  • GL_ARB_multisample
  • GL_ARB_multitexture
  • GL_ARB_occlusion_query
  • GL_ARB_pixel_buffer_object
  • GL_ARB_point_parameters
  • GL_ARB_point_sprite
  • GL_ARB_shader_objects
  • GL_ARB_shader_texture_lod
  • GL_ARB_shading_language_100
  • GL_ARB_shadow
  • GL_ARB_shadow_ambient
  • GL_ARB_texture_border_clamp
  • GL_ARB_texture_compression
  • GL_ARB_texture_compression_rgtc
  • GL_ARB_texture_cube_map
  • GL_ARB_texture_env_add
  • GL_ARB_texture_env_combine
  • GL_ARB_texture_env_crossbar
  • GL_ARB_texture_env_dot3
  • GL_ARB_texture_float
  • GL_ARB_texture_mirrored_repeat
  • GL_ARB_texture_non_power_of_two
  • GL_ARB_texture_rectangle
  • GL_ARB_texture_rg
  • GL_ARB_transpose_matrix
  • GL_ARB_vertex_array_object
  • GL_ARB_vertex_buffer_object
  • GL_ARB_vertex_program
  • GL_ARB_vertex_shader
  • GL_ARB_window_pos
  • GL_ATI_draw_buffers
  • GL_ATI_envmap_bumpmap
  • GL_ATI_fragment_shader
  • GL_ATI_meminfo
  • GL_ATI_separate_stencil
  • GL_ATI_texture_compression_3dc
  • GL_ATI_texture_env_combine3
  • GL_ATI_texture_float
  • GL_EXT_abgr
  • GL_EXT_bgra
  • GL_EXT_blend_color
  • GL_EXT_blend_equation_separate
  • GL_EXT_blend_func_separate
  • GL_EXT_blend_minmax
  • GL_EXT_blend_subtract
  • GL_EXT_compiled_vertex_array
  • GL_EXT_copy_texture
  • GL_EXT_draw_buffers2
  • GL_EXT_draw_range_elements
  • GL_EXT_fog_coord
  • GL_EXT_framebuffer_blit
  • GL_EXT_framebuffer_multisample
  • GL_EXT_framebuffer_object
  • GL_EXT_framebuffer_sRGB
  • GL_EXT_gpu_program_parameters
  • GL_EXT_gpu_shader4
  • GL_EXT_multi_draw_arrays
  • GL_EXT_packed_depth_stencil
  • GL_EXT_packed_float
  • GL_EXT_packed_pixels
  • GL_EXT_point_parameters
  • GL_EXT_rescale_normal
  • GL_EXT_secondary_color
  • GL_EXT_separate_specular_color
  • GL_EXT_shadow_funcs
  • GL_EXT_stencil_wrap
  • GL_EXT_subtexture
  • GL_EXT_texgen_reflection
  • GL_EXT_texture3D
  • GL_EXT_texture_array
  • GL_EXT_texture_compression_latc
  • GL_EXT_texture_compression_rgtc
  • GL_EXT_texture_compression_s3tc
  • GL_EXT_texture_cube_map
  • GL_EXT_texture_edge_clamp
  • GL_EXT_texture_env_add
  • GL_EXT_texture_env_combine
  • GL_EXT_texture_env_dot3
  • GL_EXT_texture_filter_anisotropic
  • GL_EXT_texture_integer
  • GL_EXT_texture_lod_bias
  • GL_EXT_texture_mirror_clamp
  • GL_EXT_texture_object
  • GL_EXT_texture_rectangle
  • GL_EXT_texture_sRGB
  • GL_EXT_texture_shared_exponent
  • GL_EXT_transform_feedback
  • GL_EXT_vertex_array
  • GL_KTX_buffer_region
  • GL_NV_blend_square
  • GL_NV_conditional_render
  • GL_NV_texgen_reflection
  • GL_SGIS_generate_mipmap
  • GL_SGIS_texture_edge_clamp
  • GL_SGIS_texture_lod
  • GL_WIN_swap_hint
  • WGL_ARB_extensions_string
  • WGL_ARB_pixel_format
  • WGL_ATI_pixel_format_float
  • WGL_ARB_pixel_format_float
  • WGL_ARB_multisample
  • WGL_EXT_swap_control
  • WGL_ARB_pbuffer
  • WGL_ARB_render_texture
  • WGL_ARB_make_current_read
  • WGL_EXT_extensions_string
  • WGL_ARB_buffer_region
  • WGL_EXT_framebuffer_sRGB
  • WGL_ATI_render_texture_rectangle
  • WGL_EXT_pixel_format_packed_float
  • WGL_I3D_genlock
  • WGL_NV_swap_group
  • WGL_ARB_create_context

A more detailed description of each extension can be found at the following addresses:

The extensions exposed by the old Catalyst drivers are HERE.
You can use GPU Caps Viewer to retrieve the list of extensions of your graphics card.


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