[xwin-discuss] Mesa 6.5.2 Release Notes / (in progress)

[Ken Mays]

This might be helpful in testing Nevada build 53 with the new DRI backend. I'd expect some developers may want to get into the newer R300 and Intel X3000 DRI drivers... ~ Ken


Mesa 6.5.2 Release Notes / (in progress)

Mesa 6.5.2 is a 6.5 follow-on development release mostly consisting of bug fixes. 

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 

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) 
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
----------------------	----------------------
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
 
 
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