Mesa 6.5.3 Release Notes / April 27, 2007¶
Mesa 6.5.3 is a development release with many changes and new features. Mesa 7.0 is expected to follow shortly.
MD5 checksums¶
39f33ea64e34e2d5b20640b008b57649  MesaLib-6.5.3.tar.gz
46359457147c469745f24b5074a186f0  MesaLib-6.5.3.tar.bz2
a8946fa861634ce15971396f47992c41  MesaLib-6.5.3.zip
08e26948d57eaca74d02a530b2d8106e  MesaDemos-6.5.3.tar.gz
8af91773ab2653fe537499676b05f2e8  MesaDemos-6.5.3.tar.bz2
783f81b171bf89b0929abc894efd25a6  MesaDemos-6.5.3.zip
9467d415388fe1ad82991fb20704b812  MesaGLUT-6.5.3.tar.gz
360843e46b7ebb6909290b023f9b26fa  MesaGLUT-6.5.3.tar.bz2
7686065e5c15a30de08a1610860b6840  MesaGLUT-6.5.3.zip
New features¶
- OpenGL 2.0 and 2.1 API support. 
- Entirely new Shading Language code generator. See the Shading Language page for more information. 
- Much faster software execution of vertex, fragment shaders. 
- New vertex buffer object (vbo) infrastructure 
- Updated glext.h file (version 39) 
- Updated glxext.h file (version 19) 
- 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 
- Overlapping glCopyPixels with negative Y zoom didn’t work (bug 10521) 
- Fixed a number of framebuffer/renderbuffer reference counting bugs 
- Fixed a few bugs in software-emulated alpha planes 
- Assorted minor bug fixes in glCopy/DrawPixels, glPixelZoom, etc. 
- Assorted DRI driver bug fixes. 
- Fixed a number of bugs that prevented “depth-peeling” rendering from working. 
Internal code changes¶
- Old array_cache module replaced by new vbo module. All geometry rendering is now cast in the form of vertex buffer objects. 
- Massive changes to the Shading Language compiler and related state. 
- Vertex/fragment shaders are compiled into GPU instructions and programs very similar to GL_ARB_vertex/fragment_program. 
- Vertex and fragment programs are executed with the same code now. 
- The SSE-optimized vertex program path has been removed since it didn’t support more than 12 temp registers, didn’t support branching/looping, etc. 
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 2.1
OSMesa (off-screen) implements OpenGL 2.1
Windows/Win32       implements OpenGL 2.1
Glide (3dfx Voodoo1/2)  implements OpenGL 1.3
SVGA            unsupported
Wind River UGL      unsupported
DJGPP           unsupported
GGI         unsupported
BeOS            unsupported
Allegro         unsupported
D3D         unsupported