1 <!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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">
11 <h1>The Mesa
3D Graphics Library
</h1>
14 <iframe src=
"contents.html"></iframe>
17 <h1>Mesa
6.5.3 Release Notes / April
27,
2007</h1>
20 Mesa
6.5.3 is a development release with many changes and new features.
21 Mesa
7.0 is expected to follow shortly.
25 <h2>MD5 checksums
</h2>
27 39f33ea64e34e2d5b20640b008b57649 MesaLib-
6.5.3.tar.gz
28 46359457147c469745f24b5074a186f0 MesaLib-
6.5.3.tar.bz2
29 a8946fa861634ce15971396f47992c41 MesaLib-
6.5.3.zip
30 08e26948d57eaca74d02a530b2d8106e MesaDemos-
6.5.3.tar.gz
31 8af91773ab2653fe537499676b05f2e8 MesaDemos-
6.5.3.tar.bz2
32 783f81b171bf89b0929abc894efd25a6 MesaDemos-
6.5.3.zip
33 9467d415388fe1ad82991fb20704b812 MesaGLUT-
6.5.3.tar.gz
34 360843e46b7ebb6909290b023f9b26fa MesaGLUT-
6.5.3.tar.bz2
35 7686065e5c15a30de08a1610860b6840 MesaGLUT-
6.5.3.zip
39 <h2>Shared library numbering
</h2>
41 Mesa
6.5.3 supports the OpenGL
2.0/
2.1 API. However, the (unix)
42 shared library version is still
1.5 (i.e. libGL.so
.1.5.xxxxxx).
43 Bumping the shared library version to
2.x would cause linking problems
44 with existing OpenGL applications. Since OpenGL
2.x is backward
45 compatible with OpenGL
1.x the shared library version number doesn't
46 have to be incremented (which would indicate an incompatible ABI).
49 Other OpenGL vendors name their OpenGL
2.x libraries libGL.so
.1.0.xxxxx
57 <li>OpenGL
2.0 and
2.1 API support.
58 <li>Entirely new Shading Language code generator. See the
59 <a href=
"shading.html">Shading Language
</a> page for more information.
60 <li>Much faster software execution of vertex, fragment shaders.
61 <li>New vertex buffer object (vbo) infrastructure
62 <li>Updated glext.h file (version
39)
63 <li>Updated glxext.h file (version
19)
64 <li>GL_MAX_DRAWBUFFERS is now
4 (software rendering) so
65 "multiple render targets" are really supported.
70 <li>Fog was errantly applied when a fragment shader was enabled (bug
9346)
71 <li>glPush/PopClientAttrib didn't handle VBO bindings correctly (bug
9445)
72 <li>With
32-bit Z buffer, the fragment Z of lines and points was sometimes wrong.
73 <li>GL_POST_CONVOLUTION_ALPHA_BIAS/SCALE was broken.
74 <li>1D convolution state could effect
2D image transfers
75 <li>Overlapping glCopyPixels with negative Y zoom didn't work (bug
10521)
76 <li>Fixed a number of framebuffer/renderbuffer reference counting bugs
77 <li>Fixed a few bugs in software-emulated alpha planes
78 <li>Assorted minor bug fixes in glCopy/DrawPixels, glPixelZoom, etc.
79 <li>Assorted DRI driver bug fixes.
80 <li>Fixed a number of bugs that prevented
"depth-peeling" rendering from working.
84 <h2>Internal code changes
</h2>
86 <li>Old array_cache module replaced by new vbo module. All geometry
87 rendering is now cast in the form of vertex buffer objects.
88 <li>Massive changes to the Shading Language compiler and related state.
89 <li>Vertex/fragment shaders are compiled into GPU instructions and
90 programs very similar to GL_ARB_vertex/fragment_program.
91 <li>Vertex and fragment programs are executed with the same code now.
92 <li>The SSE-optimized vertex program path has been removed since it didn't
93 support more than
12 temp registers, didn't support branching/looping, etc.
97 <h2>To Do (someday) items
</h2>
99 <li>Switch to freeglut
100 <li>Fix linux-glide target/driver.
101 <li>Improved lambda and derivative calculation for frag progs.
105 <h2>Driver Status
</h2>
109 ---------------------- ----------------------
110 DRI drivers varies with the driver
111 XMesa/GLX (on Xlib) implements OpenGL
2.1
112 OSMesa (off-screen) implements OpenGL
2.1
113 Windows/Win32 implements OpenGL
2.1
114 Glide (
3dfx Voodoo1/
2) implements OpenGL
1.3
116 Wind River UGL unsupported