Mesa 9.1 Release Notes / February 22, 2013

Mesa 9.1 is a new development release. People who are concerned with stability and reliability should stick with a previous release or wait for Mesa 9.1.1.

Mesa 9.1 implements the OpenGL 3.1 API, but the version reported by glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) / glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used. Some drivers don’t support all the features required in OpenGL 3.1. OpenGL 3.1 is only available if requested at context creation because GL_ARB_compatibility is not supported.

MD5 checksums

86d40f3056f89949368764bf84aff55e  MesaLib-9.1.tar.gz
d3891e02215422e120271d976ff1947e  MesaLib-9.1.tar.bz2

New features

Note: some of the new features are only available with certain drivers.

  • GL_ANGLE_texture_compression_dxt3

  • GL_ANGLE_texture_compression_dxt5

  • GL_ARB_ES3_compatibility

  • GL_ARB_internalformat_query

  • GL_ARB_map_buffer_alignment

  • GL_ARB_shading_language_packing

  • GL_ARB_texture_buffer_object_rgb32

  • GL_ARB_texture_cube_map_array

  • GL_EXT_color_buffer_float

  • GL_OES_depth_texture_cube_map

  • OpenGL 3.1 core profile support on Radeon HD2000 up to HD6000 series

  • Multisample anti-aliasing support on Radeon X1000 series

  • OpenGL ES 3.0 support on Intel HD Graphics 2000, 2500, 3000, and 4000

Bug fixes

TBD – This list is likely incomplete.


  • Removed VAAPI state tracker (unmaintained and broken)

  • Removed i965’s broken hardware implementation of GL_NV_vertex_program

  • Removed swrast support for GL_NV_vertex_program

  • Removed swrast support for GL_NV_fragment_program

  • Removed OpenVMS support (unmaintained and broken)

  • Removed makedepend build dependency