Mesa Release Notes

# The Mesa 3D Graphics Library

# Mesa 6.5.2 Release Notes / December 2, 2006

Mesa 6.5.2 is a 6.5 follow-on development release with a few new features but mostly consisting of bug fixes.

## MD5 checksums

    11a033b078e090b3caaeb467234fe299  MesaLib-6.5.2.tar.gz
    e4d894181f1859651658b3704633e10d  MesaLib-6.5.2.tar.bz2
    63bf1d444fa738cca52ce1043e284021  MesaLib-6.5.2.zip
    2b8f1375d16bda5f5a2304174cd5bcf7  MesaDemos-6.5.2.tar.gz
    e870efe98d3a50be01ab211b9b2e25d9  MesaDemos-6.5.2.tar.bz2
    d92cc6f5fee5ca75af0be04f9f4908f0  MesaDemos-6.5.2.zip
    8d4d77e3a7132f4217bbc7c1ab157030  MesaGLUT-6.5.2.tar.gz
    e84edbb11c69c8e408dfadd2ed08e95b  MesaGLUT-6.5.2.tar.bz2
    c6d7134843ed5faf11f6686ecb5d2a2e  MesaGLUT-6.5.2.zip

## New features

- New DRI memory manager system. Currently used by the i915tex driver. Other DRI drivers will be updated to use the new memory manager in coming months.
  To use the new driver you'll need the most recent DRM library and drivers (version 2.2 or later) and a recent xf86-video-intel driver module from X.org.
  New features resulting from this work include:
  - EXT_framebuffer_objects, render to texture
  - ARB_pixel_buffer_objects
  - Accelerated CopyTexSubimage, DrawPixels, ReadPixels, CopyPixels
  - Accelerated texture uploads from pixel buffer objects
  - Potentially texturing directly from the pixel buffer object (zero copy texturing).
- New Intel i965 DRI driver
- New `minstall` script to replace normal install program
- Faster fragment program execution in software
- Added (or fixed) support for GLX_SGI_make_current_read to the following drivers:
  - radeon
  - savage
  - mga
  - tdfx
- Added support for ARB_occlusion_query to the tdfx driver (Ian Romanick).

## Bug fixes

- fixed invalid memory read while rendering textured points (bug 8320)
- fixed problems with freebsd-dri configuration (bug 8344)
- Mesa's fake glxGetCurrentContext() wasn't thread-aware
- OPTION NV_position_invariant didn't work in NV vertex programs
- glDrawPixels into a user-created framebuffer object could crash Xlib driver
- Line clipping was broken in some circumstances
- fragment.fogcoord register didn't always contain the correct value
- RGBA logicops didn't work reliably in some DRI drivers
- Fixed broken RGBA LogicOps in Intel DRI drivers
- Fixed some fragment program bugs in Intel i915 DRI driver
- Fixed glGetVertexAttribfvARB bug 8883
- Implemented glGetUniform[fi]vARB() functions
- Fixed glDrawPixels(GL_COLOR_INDEX, GL_BITMAP) segfault (bug 9044)
- Fixed some gluBuild2DMipmaps() bugs (Greg McGarragh)
- Fixed broken "mgl" name mangling
- Indirect rending was broken for glMap* functions (bug 8899)

## Internal code changes

- The device driver functions ResizeBuffers and GetBufferSize have been decprecated.
- OpenGL 2.0 and 2.1 support is nearly done. We need to do quite a bit more testing of the shading language functions.

## To Do (someday) items

- Switch to freeglut
- Increase MAX_DRAWBUFFERS
- Fix linux-glide target/driver.
- Improved lambda and derivative calculation for frag progs.

## Driver Status

    Driver			Status
    ----------------------	----------------------
    DRI drivers		varies with the driver
    XMesa/GLX (on Xlib)	implements OpenGL 1.5
    OSMesa (off-screen)	implements OpenGL 1.5
    Glide (3dfx Voodoo1/2)	implements OpenGL 1.3
    SVGA			implements OpenGL 1.3
    Wind River UGL		implements OpenGL 1.3
    Windows/Win32		implements OpenGL 1.5
    DJGPP			implements OpenGL 1.5
    GGI			implements OpenGL 1.3
    BeOS			implements OpenGL 1.5
    Allegro			needs updating
    D3D			needs updating