docs/relnotes/7.5.html

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  11   The Mesa 3D Graphics Library
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  16
  17 <h1>Mesa 7.5 Release Notes / 17 July 2009</h1>
  18
  19 <p>
  20 Mesa 7.5 is a new development release.
  21 People who are concerned with stability and reliability should stick
  22 with the 7.4.x branch or wait for Mesa 7.5.1.
  23 </p>
  24 <p>
  25 The main new feature of Mesa 7.5 is the
  26 <a href="https://www.freedesktop.org/wiki/Software/gallium">Gallium3D</a> infrastructure.
  27 </p>
  28 <p>
  29 Mesa 7.5 implements the OpenGL 2.1 API, but the version reported by
  30 glGetString(GL_VERSION) depends on the particular driver being used.
  31 Some drivers don't support all the features required in OpenGL 2.1.
  32 </p>
  33 <p>
  34 See the <a href="../install.html">Compiling/Installing page</a> for prerequisites
  35 for DRI hardware acceleration.
  36 </p>
  37 <p>
  38 Note that the Mesa project is no longer using odd/even version numbers
  39 to indicate development/stable releases.
  40 The so-called development releases have been fairly stable.
  41 If you're especially concerned with stability you should probably look for
  42 "point" releases such as 7.5.1 which will be a bug-fix release.
  43 </p>
  44
  45
  46 <h2>MD5 checksums</h2>
  47 <pre>
  48 553fd956e544727f30fbe249619b6286  MesaLib-7.5.tar.gz
  49 459f332551f6ebb86f384d21dd15e1f0  MesaLib-7.5.tar.bz2
  50 8c02c0e17a9025250d20424ae32f5163  MesaLib-7.5.zip
  51 a188da2886fa5496ea0c2cda602b2eeb  MesaDemos-7.5.tar.gz
  52 398ee8801814a00e47f6c2314e3dfddc  MesaDemos-7.5.tar.bz2
  53 15a0c8ae013c54335a26335e1a98d609  MesaDemos-7.5.zip
  54 81010147def5a644ba14f9bbb7a49a2a  MesaGLUT-7.5.tar.gz
  55 baa7a1e850b6e39bae58868fd0684004  MesaGLUT-7.5.tar.bz2
  56 265228418e4423fa328f2f5b7970cf08  MesaGLUT-7.5.zip
  57 </pre>
  58
  59
  60 <h2>New features</h2>
  61 <ul>
  62 <li>Gallium3D - this is the new architecture for OS-independent and
  63     API-independent 3D drivers.
  64     Gallium3D is intended for GPUs that fully support  vertex/fragment shaders.
  65     The Gallium3D drivers currently included are:
  66     <ul>
  67     <li>softpipe - a software/reference driver
  68     <li>i915 - Intel 915/945 driver
  69     <li>Cell - IBM/Sony/Toshiba Cell processor driver
  70     <li>nouveau (for NVIDIA GPUs) and R300 for (AMD/ATI R300).
  71         <b>PLEASE NOTE: these drivers are incomplete and still under development.
  72         It's probably NOT worthwhile to report any bugs unless you have patches.
  73         </b>
  74     </ul>
  75 <li>GL_ARB_framebuffer_object extension (software drivers, i965 driver)
  76 <li>Reworked two-sided stencil support.
  77 This allows a driver to support all three variations of two-sided stencil
  78 including GL_ATI_separate_stencil, GL_EXT_stencil_two_side and OpenGL 2.0
  79 <li>GL_EXT_vertex_array_bgra extension (software drivers, i965 driver)
  80 <li>GL_NV_texture_env_combine4 extension (software drivers, i965/i915 drivers)
  81 <li>GL_EXT_texture_swizzle extension (software drivers, i965 driver)
  82 <li>Updated SPARC assembly optimizations (David S. Miller)
  83 <li>Initial support for separate compilation units in GLSL compiler.
  84 <li>Increased max number of generic GLSL varying variables to 16 (formerly 8).
  85 <li>GLSL linker now detects when too many varying variables are used.
  86 <li>Optimize-out redundant glMaterial and glShadeModel calls in display lists
  87 <li>Fixed gl_TextureMatrix[i][j] array indexing bug in GLSL compiler.
  88 </ul>
  89
  90
  91 <h2>Bug fixes</h2>
  92 <ul>
  93 <li>Lots of i965 driver bug fixes
  94 <li>Fixed some GLSL preprocessor bugs
  95 <li>GLSL: continue inside of a for-loop didn't work
  96 </ul>
  97
  98
  99 <h2>Changes</h2>
 100 <ul>
 101 <li>Remove support for GL_SGIX_shadow, GL_SGIX_shadow_ambient and
 102 GL_SGIX_depth_texture extensions.  Superseded by the ARB versions.
 103 <li>Omitted some old Mesa demos from the release tarballs, added some others.
 104 </ul>
 105
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