Mesa 6.5.3 Release Notes / (in progress)

Mesa 6.5.3 is a 6.5 follow-on development release with many internal changes.

MD5 checksums

TBD

New features

• OpenGL 2.0 support.
• Entirely new Shading Language code generator.
• Much faster software execution of vertex, fragment shaders.
• New vertex buffer object infrastructure (replaces old array_cache code).
• Updated glext.h file (version 39)
• Updated glxext.h file (version 18)
• GL_MAX_DRAWBUFFERS is now 4 (software rendering) so "multiple render targets" are really supported.

Bug fixes

• Fog was errantly applied when a fragment shader was enabled (bug 9346)
• glPush/PopClientAttrib didn't handle VBO bindings correctly (bug 9445)
• With 32-bit Z buffer, the fragment Z of lines and points was sometimes wrong.
• GL_POST_CONVOLUTION_ALPHA_BIAS/SCALE was broken.
• 1D convolution state could effect 2D image transfers

Internal code changes

• Massive changes to the Shading Language compiler.
• The _MaintainTnlProgram, _MaintainTexEnvProgram, _TexEnvProgram and _TnlProgram fields have been moved.
• The ctx->FragmentProgram._Active field has been removed.
• The ctx->Vertex/FragmentProgram._Current fields point to the program in effect, whether it comes from a shader, user-program or generated fixed-function program.
• The _UseTexEnvProgram field has been removed.

To Do (someday) items

• Switch to freeglut
• 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 2.0
OSMesa (off-screen)	implements OpenGL 2.0
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