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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2<html lang="en">
3<head>
4  <meta http-equiv="content-type" content="text/html; charset=utf-8">
5  <title>Mesa Release Notes</title>
6  <link rel="stylesheet" type="text/css" href="../mesa.css">
7</head>
8<body>
9
10<div class="header">
11  <h1>The Mesa 3D Graphics Library</h1>
12</div>
13
14<iframe src="../contents.html"></iframe>
15<div class="content">
16
17<h1>Mesa 7.5 Release Notes / 17 July 2009</h1>
18
19<p>
20Mesa 7.5 is a new development release.
21People who are concerned with stability and reliability should stick
22with the 7.4.x branch or wait for Mesa 7.5.1.
23</p>
24<p>
25The 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>
29Mesa 7.5 implements the OpenGL 2.1 API, but the version reported by
30glGetString(GL_VERSION) depends on the particular driver being used.
31Some drivers don't support all the features required in OpenGL 2.1.
32</p>
33<p>
34See the <a href="../install.html">Compiling/Installing page</a> for prerequisites
35for DRI hardware acceleration.
36</p>
37<p>
38Note that the Mesa project is no longer using odd/even version numbers
39to indicate development/stable releases.
40The so-called development releases have been fairly stable.
41If 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>
48553fd956e544727f30fbe249619b6286  MesaLib-7.5.tar.gz
49459f332551f6ebb86f384d21dd15e1f0  MesaLib-7.5.tar.bz2
508c02c0e17a9025250d20424ae32f5163  MesaLib-7.5.zip
51a188da2886fa5496ea0c2cda602b2eeb  MesaDemos-7.5.tar.gz
52398ee8801814a00e47f6c2314e3dfddc  MesaDemos-7.5.tar.bz2
5315a0c8ae013c54335a26335e1a98d609  MesaDemos-7.5.zip
5481010147def5a644ba14f9bbb7a49a2a  MesaGLUT-7.5.tar.gz
55baa7a1e850b6e39bae58868fd0684004  MesaGLUT-7.5.tar.bz2
56265228418e4423fa328f2f5b7970cf08  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.
77This allows a driver to support all three variations of two-sided stencil
78including 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
102GL_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
106</div>
107</body>
108</html>
109