docs/relnotes/7.5.rst

   1 Mesa 7.5 Release Notes / 17 July 2009
   2 =====================================
   3
   4 Mesa 7.5 is a new development release. People who are concerned with
   5 stability and reliability should stick with the 7.4.x branch or wait for
   6 Mesa 7.5.1.
   7
   8 The main new feature of Mesa 7.5 is the
   9 `Gallium3D <https://www.freedesktop.org/wiki/Software/gallium>`__
  10 infrastructure.
  11
  12 Mesa 7.5 implements the OpenGL 2.1 API, but the version reported by
  13 glGetString(GL_VERSION) depends on the particular driver being used.
  14 Some drivers don't support all the features required in OpenGL 2.1.
  15
  16 See the :doc:`Compiling/Installing page <../install>` for
  17 prerequisites for DRI hardware acceleration.
  18
  19 Note that the Mesa project is no longer using odd/even version numbers
  20 to indicate development/stable releases. The so-called development
  21 releases have been fairly stable. If you're especially concerned with
  22 stability you should probably look for "point" releases such as 7.5.1
  23 which will be a bug-fix release.
  24
  25 MD5 checksums
  26 -------------
  27
  28 ::
  29
  30    553fd956e544727f30fbe249619b6286  MesaLib-7.5.tar.gz
  31    459f332551f6ebb86f384d21dd15e1f0  MesaLib-7.5.tar.bz2
  32    8c02c0e17a9025250d20424ae32f5163  MesaLib-7.5.zip
  33    a188da2886fa5496ea0c2cda602b2eeb  MesaDemos-7.5.tar.gz
  34    398ee8801814a00e47f6c2314e3dfddc  MesaDemos-7.5.tar.bz2
  35    15a0c8ae013c54335a26335e1a98d609  MesaDemos-7.5.zip
  36    81010147def5a644ba14f9bbb7a49a2a  MesaGLUT-7.5.tar.gz
  37    baa7a1e850b6e39bae58868fd0684004  MesaGLUT-7.5.tar.bz2
  38    265228418e4423fa328f2f5b7970cf08  MesaGLUT-7.5.zip
  39
  40 New features
  41 ------------
  42
  43 -  Gallium3D - this is the new architecture for OS-independent and
  44    API-independent 3D drivers. Gallium3D is intended for GPUs that fully
  45    support vertex/fragment shaders. The Gallium3D drivers currently
  46    included are:
  47
  48    -  softpipe - a software/reference driver
  49    -  i915 - Intel 915/945 driver
  50    -  Cell - IBM/Sony/Toshiba Cell processor driver
  51    -  nouveau (for NVIDIA GPUs) and R300 for (AMD/ATI R300).
  52
  53       .. note::
  54
  55          these drivers are incomplete and still under development.
  56          It's probably NOT worthwhile to report any bugs unless you have
  57          patches.
  58
  59 -  GL_ARB_framebuffer_object extension (software drivers, i965 driver)
  60 -  Reworked two-sided stencil support. This allows a driver to support
  61    all three variations of two-sided stencil including
  62    GL_ATI_separate_stencil, GL_EXT_stencil_two_side and OpenGL 2.0
  63 -  GL_EXT_vertex_array_bgra extension (software drivers, i965 driver)
  64 -  GL_NV_texture_env_combine4 extension (software drivers, i965/i915
  65    drivers)
  66 -  GL_EXT_texture_swizzle extension (software drivers, i965 driver)
  67 -  Updated SPARC assembly optimizations (David S. Miller)
  68 -  Initial support for separate compilation units in GLSL compiler.
  69 -  Increased max number of generic GLSL varying variables to 16
  70    (formerly 8).
  71 -  GLSL linker now detects when too many varying variables are used.
  72 -  Optimize-out redundant glMaterial and glShadeModel calls in display
  73    lists
  74 -  Fixed gl_TextureMatrix[i][j] array indexing bug in GLSL compiler.
  75
  76 Bug fixes
  77 ---------
  78
  79 -  Lots of i965 driver bug fixes
  80 -  Fixed some GLSL preprocessor bugs
  81 -  GLSL: continue inside of a for-loop didn't work
  82
  83 Changes
  84 -------
  85
  86 -  Remove support for GL_SGIX_shadow, GL_SGIX_shadow_ambient and
  87    GL_SGIX_depth_texture extensions. Superseded by the ARB versions.
  88 -  Omitted some old Mesa demos from the release tarballs, added some
  89    others.