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|  | <title>Mesa Release Notes</title> | 
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|  | <h1>The Mesa 3D Graphics Library</h1> | 
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|  |  | 
|  | <h1>Mesa 7.5 Release Notes / 17 July 2009</h1> | 
|  |  | 
|  | <p> | 
|  | Mesa 7.5 is a new development release. | 
|  | People who are concerned with stability and reliability should stick | 
|  | with the 7.4.x branch or wait for Mesa 7.5.1. | 
|  | </p> | 
|  | <p> | 
|  | The main new feature of Mesa 7.5 is the | 
|  | <a href="http://wiki.freedesktop.org/wiki/Software/gallium">Gallium3D</a> infrastructure. | 
|  | </p> | 
|  | <p> | 
|  | Mesa 7.5 implements the OpenGL 2.1 API, but the version reported by | 
|  | glGetString(GL_VERSION) depends on the particular driver being used. | 
|  | Some drivers don't support all the features required in OpenGL 2.1. | 
|  | </p> | 
|  | <p> | 
|  | See the <a href="../install.html">Compiling/Installing page</a> for prerequisites | 
|  | for DRI hardware acceleration. | 
|  | </p> | 
|  | <p> | 
|  | Note that the Mesa project is no longer using odd/even version numbers | 
|  | to indicate development/stable releases. | 
|  | The so-called development releases have been fairly stable. | 
|  | If you're especially concerned with stability you should probably look for | 
|  | "point" releases such as 7.5.1 which will be a bug-fix release. | 
|  | </p> | 
|  |  | 
|  |  | 
|  | <h2>MD5 checksums</h2> | 
|  | <pre> | 
|  | 553fd956e544727f30fbe249619b6286  MesaLib-7.5.tar.gz | 
|  | 459f332551f6ebb86f384d21dd15e1f0  MesaLib-7.5.tar.bz2 | 
|  | 8c02c0e17a9025250d20424ae32f5163  MesaLib-7.5.zip | 
|  | a188da2886fa5496ea0c2cda602b2eeb  MesaDemos-7.5.tar.gz | 
|  | 398ee8801814a00e47f6c2314e3dfddc  MesaDemos-7.5.tar.bz2 | 
|  | 15a0c8ae013c54335a26335e1a98d609  MesaDemos-7.5.zip | 
|  | 81010147def5a644ba14f9bbb7a49a2a  MesaGLUT-7.5.tar.gz | 
|  | baa7a1e850b6e39bae58868fd0684004  MesaGLUT-7.5.tar.bz2 | 
|  | 265228418e4423fa328f2f5b7970cf08  MesaGLUT-7.5.zip | 
|  | </pre> | 
|  |  | 
|  |  | 
|  | <h2>New features</h2> | 
|  | <ul> | 
|  | <li>Gallium3D - this is the new architecture for OS-independent and | 
|  | API-independent 3D drivers. | 
|  | Gallium3D is intended for GPUs that fully support  vertex/fragment shaders. | 
|  | The Gallium3D drivers currently included are: | 
|  | <ul> | 
|  | <li>softpipe - a software/reference driver | 
|  | <li>i915 - Intel 915/945 driver | 
|  | <li>Cell - IBM/Sony/Toshiba Cell processor driver | 
|  | <li>nouveau (for NVIDIA GPUs) and R300 for (AMD/ATI R300). | 
|  | <b>PLEASE NOTE: these drivers are incomplete and still under development. | 
|  | It's probably NOT worthwhile to report any bugs unless you have patches. | 
|  | </b> | 
|  | </ul> | 
|  | <li>GL_ARB_framebuffer_object extension (software drivers, i965 driver) | 
|  | <li>Reworked two-sided stencil support. | 
|  | This allows a driver to support all three variations of two-sided stencil | 
|  | including GL_ATI_separate_stencil, GL_EXT_stencil_two_side and OpenGL 2.0 | 
|  | <li>GL_EXT_vertex_array_bgra extension (software drivers, i965 driver) | 
|  | <li>GL_NV_texture_env_combine4 extension (software drivers, i965/i915 drivers) | 
|  | <li>GL_EXT_texture_swizzle extension (software drivers, i965 driver) | 
|  | <li>Updated SPARC assembly optimizations (David S. Miller) | 
|  | <li>Initial support for separate compilation units in GLSL compiler. | 
|  | <li>Increased max number of generic GLSL varying variables to 16 (formerly 8). | 
|  | <li>GLSL linker now detects when too many varying variables are used. | 
|  | <li>Optimize-out redundant glMaterial and glShadeModel calls in display lists | 
|  | <li>Fixed gl_TextureMatrix[i][j] array indexing bug in GLSL compiler. | 
|  | </ul> | 
|  |  | 
|  |  | 
|  | <h2>Bug fixes</h2> | 
|  | <ul> | 
|  | <li>Lots of i965 driver bug fixes | 
|  | <li>Fixed some GLSL preprocessor bugs | 
|  | <li>GLSL: continue inside of a for-loop didn't work | 
|  | </ul> | 
|  |  | 
|  |  | 
|  | <h2>Changes</h2> | 
|  | <ul> | 
|  | <li>Remove support for GL_SGIX_shadow, GL_SGIX_shadow_ambient and | 
|  | GL_SGIX_depth_texture extensions.  Superseded by the ARB versions. | 
|  | <li>Omitted some old Mesa demos from the release tarballs, added some others. | 
|  | </ul> | 
|  |  | 
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