The Mesa 3D Graphics Library

Mesa 7.5 Release Notes / 17 July 2009

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.

The main new feature of Mesa 7.5 is the

Gallium3D infrastructure.

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.

See the Compiling/Installing page for prerequisites

for DRI hardware acceleration.

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.

MD5 checksums

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

New features

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:

    
softpipe - a software/reference driver

    
i915 - Intel 915/945 driver

    
Cell - IBM/Sony/Toshiba Cell processor driver

    
nouveau (for NVIDIA GPUs) and R300 for (AMD/ATI R300).

        PLEASE NOTE: these drivers are incomplete and still under development.

        It's probably NOT worthwhile to report any bugs unless you have patches.

GL_ARB_framebuffer_object extension (software drivers, i965 driver)

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

GL_EXT_vertex_array_bgra extension (software drivers, i965 driver)

GL_NV_texture_env_combine4 extension (software drivers, i965/i915 drivers)

GL_EXT_texture_swizzle extension (software drivers, i965 driver)

Updated SPARC assembly optimizations (David S. Miller)

Initial support for separate compilation units in GLSL compiler.

Increased max number of generic GLSL varying variables to 16 (formerly 8).

GLSL linker now detects when too many varying variables are used.

Optimize-out redundant glMaterial and glShadeModel calls in display lists

Fixed gl_TextureMatrix[i][j] array indexing bug in GLSL compiler.

Bug fixes

Lots of i965 driver bug fixes

Fixed some GLSL preprocessor bugs

GLSL: continue inside of a for-loop didn't work

Changes

Remove support for GL_SGIX_shadow, GL_SGIX_shadow_ambient and

GL_SGIX_depth_texture extensions.  Superseded by the ARB versions.

Omitted some old Mesa demos from the release tarballs, added some others.