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    1 
    2 
    3 Mesa Version History
    4 ====================
    5 
    6 1.0 beta   February 1995
    7     Initial release
    8 
    9 1.1 beta   March 4, 1995
   10     Changes:
   11 	faster point and line drawing (2x faster)
   12 	more systems supported, better Makefiles
   13 	Renamed lib*.a files to avoid collisions
   14 	many small bug fixes
   15     New:
   16 	pseudo-GLX functions added
   17 	new implementation of evaluators (eval2.c)
   18 	GLUT support
   19 
   20 1.1.1 beta   March 7, 1995
   21     Changes:
   22 	Reverted from eval2.c to eval.c due to FPE on Linux
   23 	more speed improvements
   24 	more Makefile changes
   25 
   26 1.1.2 beta   March 14, 1995
   27     New:
   28 	implementation of SGI's blending extensions
   29 	glXUseXFont implemented
   30 	added MESA_DEBUG environment variable support
   31     Changes:
   32 	Using eval2.c again
   33 	more FPE-prevention checks (0-length normals are OK)
   34 	a few small bug fixes
   35 	much faster pixel logic ops!
   36 	faster transformation arithmetic
   37 
   38 1.1.3 beta   March 31, 1995
   39     New:
   40 	gluScaleImage() and gluBuild2DMipMaps() implemented
   41 	Mesa widgets for Xt/Motif
   42 	blendEXT demos
   43 	added environment variables for selecting visuals
   44     Changes:
   45 	almost all GLUT demos work correctly now
   46 	faster X device driver functions
   47 	more bug fixes
   48 
   49 1.1.4 beta   April 20, 1995
   50     Bug fixes:
   51 	- missing #define SEEK_SET in src-tk/image.c
   52 	- compile glShadeModel into display lists
   53 	- fixed pow() domain error in src/light.c
   54 	- fixed "flickering bitmaps" in double buffer mode
   55 	- fixed tk.h and aux.h for C++
   56 	- state of LIGHT_MODEL_LOCAL_VIEWER was inverted
   57     New features:
   58 	- MUCH, MUCH nicer dithering in 8-bit RGB mode
   59 	- updated widgets and widget demos
   60 	- Implemented GLXPixmap functions
   61 	- Added GLU 1.1 and GLX 1.1 functions
   62 	- Changed the X/Mesa interface API, more versatile
   63 	- Implemented gluPartialDisk()
   64 
   65 1.2   May 22, 1995
   66     Bug fixes:
   67 	- IRIX 4.x makefile problem
   68 	- modified tk to share root colormap as needed
   69 	- gluLookAt normalization problem
   70 	- suppress Expose, NoExpose events in swapbuffers
   71 	- glBitmap() and glDrawPixels() clipping
   72     New features:
   73 	- GL_BLEND, GL_MODULATE, GL_DECAL, and GL_REPLACE_EXT texture
   74 	      modes implemented
   75 	- texture maps stored more efficiently
   76 	- texture maps can be compiled into display lists
   77 	- Bogdan Sikorski's GLU polygon tesselation code
   78 	- Linas Vepstas's sweep and extrusion library
   79 	- glXCreateContext()'s shareList parameter works as it's supposed to.
   80 	      XMesaCreateContext() updated to accept a shareList parameter too.
   81 	- Mesa can be compiled with real OpenGL .h files
   82 	- MESA_BACK_BUFFER environment variable
   83 	- better GLX error checking
   84 
   85 1.2.1   June 22, 1995
   86     Bug fixes:
   87 	- X/Mesa double buffer window resize crash
   88 	- widgets now pass PointerMotion events
   89 	- X/Mesa incorrect default clear color and drawing color
   90 	- more robust X MIT-SHM support in X/Mesa
   91 	- glTexImage( format=GL_LUMINANCE ) didn't work
   92 	- GL_LINE mode polygons with line width > 1.0 could cause a crash
   93 	- numerous feedback bugs
   94 	- glReadPixels() from depth buffer was wrong
   95 	- error prone depth and stencil buffer allocation
   96     New features:
   97 	- Preliminary Microsoft Windows driver
   98 	- Implemented a number of missing functions: glEvalCoord[12][df]v(),
   99 	    glGet...(), etc.
  100 	- Added a few missing symbols to gl.h and glu.h
  101 	- Faster rendering of smooth-shaded, RGBA, depth-buffered polygons.
  102 	- Faster rendering of lines when width=2.0
  103 	- Stencil-related functions now work in display lists
  104     Changes:
  105 	- renamed aux.h as glaux.h (MS-DOS names can't start with aux)
  106 	- most filenames are in 8.3 format to accommodate MS-DOS
  107 	- use GLubytes to store arrays of colors instead of GLints
  108 
  109 1.2.2   August 2, 1995
  110     New features:
  111 	- texture mapped points and lines
  112 	- NURBS! (but not 100% complete)
  113 	- viewports may safely extend beyond window boundaries
  114 	- MESA_PRIVATE_CMAP environment variable
  115 	- Grayscale X display support
  116 	- two new demos:  demos/gears.c and demos/shadow.c
  117 	- MachTen for Macintosh configuration
  118     Bug fixes:
  119 	- glGet*(GL_DEPTH_BITS) returned bytes, not bits
  120 	- point, line, and bitmap rasterization suffered from roundoff errors
  121 	- fixed a division by zero error in line clippping
  122 	- occasional wrong default background color really fixed!
  123 	- glDepthFunc(GL_ALWAYS) with glDepthMask(GL_FALSE) didn't work
  124 	- gluBuild2DMipmaps malloc problem fixed
  125 	- view volume clipping of smooth shaded lines resulted in bad colors
  126     Changes:
  127 	- new visual selection method in glXChooseVisual()
  128 	- improved GLU quadric functions
  129 	- call XSync for glFinish and XFlush for glFlush
  130 	- glVertex() calls now use a function pointer to avoid conditionals
  131 	- removed contrib directory from Mesa tar file (available on ftp site)
  132 	- AIX shared library support
  133 	- Removed GLUenum type as it's not in OpenGL
  134 
  135 1.2.3   September 26, 1995
  136     New features:
  137 	- Mesa header files now equivalent to SGI OpenGL headers
  138 	- Support for HP's Color Recovery dithering displays
  139 	- Faster vertex transformation
  140 	- Faster raster operations into X windows under certain conditions
  141 	- New configurations:  HP w/ shared libs, Ultrix w/ GCC, Data General
  142 	- 4-bit visuals now supported
  143     Bug fixes:
  144 	- glScissor bug fixed
  145 	- round-off errors in clipping lines against clip planes fixed
  146 	- byte swapping between hosts and display servers implemented
  147 	- glGetError() can be called without a current rendering context
  148 	- problem with accidentally culled polygons is fixed
  149 	- fixed some widget compilation problems
  150 
  151 1.2.4   November 17, 1995
  152     New features:
  153 	- More speed improvements (lighting, fogging, polygon drawing)
  154 	- Window system and OS-independent off-screen rendering
  155 	- Preliminary Fortran bindings
  156 	- glPolygonOffsetEXT implemented
  157 	- glColorMask and glIndexMask now fully implemented
  158 	- glPixelZoom implemented
  159 	- display lists fully implemented
  160 	- gamma correction
  161 	- dithering in 8-bit TrueColor/DirectColor visuals
  162     Changes:
  163 	- Improved device driver interface
  164 	- tk.h renamed to gltk.h to avoid conflicts with Tcl's Tk
  165 	- Dithering support moved from core into device driver
  166     Bug fixes:
  167 	- glEnable/Disable( GL_LIGHTING ) didn't always take effect
  168 	- glReadPixels byte swapping was broken
  169 	- glMaterial with pname==GL_AMBIENT_AND_DIFFUSE was broken
  170 	- duplicate glColor4b() prototype in GL/gl.h removed
  171 	- stripes in wave -ci demo fixed
  172 	- GL_LINEAR_MIPMAP_NEAREST had wrong value
  173 	- bugs in HP Color Recovery support fixed
  174 	- fixed bug when blending lines, points, bitmaps outside of window
  175 
  176 1.2.5   November 30, 1995
  177     New Features:
  178 	- updated MS Windows driver
  179 	- new implementation of StaticGray/GrayScale visual support
  180     Bug fixes:
  181 	- pixelzooming with gamma correction or blending didn't work
  182 	- HP color recovery visual wasn't being picked by glXChooseVisual
  183 	- glClear didn't always observe glColorMask changes
  184 	- olympic and offset demos didn't compile on some Suns
  185 	- texcoord clamping wasn't correct
  186 	- a polygon optimization introduced an occasional sampling problem
  187 
  188 1.2.6   January 26, 1996
  189     New Features:
  190 	- faster line and polygon rendering under certain conditions.  See
  191 	  Performance Tips 9 and 10 in README
  192 	- profiling
  193 	- lighting is a bit faster
  194 	- better perspective corrected texture mapping
  195 	- Amiga AmiWin (X11) support
  196 	- preliminary Linux SVGA driver
  197     Changes:
  198 	- now using a 16-bit depth buffer, faster, smaller
  199 	- GL_NORMALIZE is disabled by default
  200     Bug fixes:
  201 	- projective texture mapping
  202 	- fixed a memory leak in the context destroy function
  203 	- GL_POLYGON with less than 3 vertices caused a crash
  204 	- glGet*() returned wrong result for GL_INDEX_MODE
  205 	- reading pixels from an unmapped X window caused a BadMatch error
  206 
  207 1.2.7   March 5, 1996
  208     New:
  209 	- faster lighting
  210 	- faster 16-bit TrueColor rendering on Linux
  211 	- faster 32-bit TrueColor rendering on Linux, HP, IBM
  212 	- non-depth-buffered XImage polygons are faster
  213 	- vertex array extension
  214 	- software alpha planes
  215 	- updated Macintosh driver
  216 	- new NeXT driver
  217 	- GLU quadric functions generate texture coordinates
  218 	- reflect.c demo - reflective, textured surface demo
  219     Changes:
  220 	- gamma correction code moved into the X driver for better performance
  221     Bug fixes:
  222 	- multiple glClipPlane()'s didn't work reliably
  223 	- glPolygonMode() didn't always work
  224 	- glCullFace( GL_FRONT_AND_BACK ) didn't work
  225 	- texture mapping with gamma correction was buggy
  226 	- floating point exceptions in texture coordinate interpolation
  227 	- XImage byte swapping didn't always work
  228 	- polygon edge flags weren't always used correctly
  229 
  230 1.2.8   May 22, 1996
  231     New:
  232 	- overlay planes on X servers with the SERVER_OVERLAY_VISUALS property
  233 	- better monochrome output
  234 	- more IRIX 6.x configurations
  235 	- more robust RGB mode color allocation
  236 	- added MESA_XSYNC environment variable
  237 	- GLX_MESA_pixmap_colormap and GLX_EXT_visual_info extensions
  238 	- GL_MESA_window_pos extension
  239 	- faster glReadPixels/glDrawPixels for GL_DEPTH and GL_UNSIGNED_SHORT
  240 	  and GL_UNSIGNED_INT
  241         - driver for prototype Cirrus Mondello 3-D board
  242 	- updated AmigaDOS driver
  243         - a few small speed optimizations in polygon rendering
  244     Changes:
  245 	- internal device driver interface modified to simplify device
  246 	  driver implementations and to support hardware Z buffers
  247 	- several changes to the X/Mesa interface (xmesa.h)
  248     Bug fixes:
  249 	- fixed pow(0,0) domain error triggered on some systems
  250 	- glStencilClear() in a display list caused an infinite loop
  251 	- glRasterPos*() was sometimes off by +/-0.5 in X and Y
  252 	- color masking and blending were performed in wrong order
  253 	- auxSolidCylinder() sometimes drew a wire-frame cylinder
  254 	- fixed file writing bug in osdemo.c
  255 	- pixel mapping didn't always work
  256 	- the GL_GEQUAL stencil func didn't work
  257 	- the GL_INVERT stencil op didn't work
  258 	- the stencil write mask didn't work
  259 	- glPush/PopAttrib() didn't do enough error checking
  260 	- glIsList() didn't always work correctly
  261 
  262 2.0  October 10, 1996
  263     New:
  264 	- Implements OpenGL 1.1 API functions
  265 	- all texture filtering modes supported (mipmapping)
  266 	- faster texture mapping, see Performance Tip 11 in README
  267 	- antialiased RGB points
  268 	- X support for line and polygon stippling
  269 	- glDrawBuffer( GL_FRONT_AND_BACK ) works
  270 	- util/ directory of useful stuff
  271 	- demos/texobj demo of texture objects
  272     Changes:
  273 	- major internal changes for thread-safeness
  274 	- new device driver interface
  275 	- MESA_ALPHA env variable removed
  276 	- triangle rasterizer replaces polygon rasterizer
  277     Bug fixes:
  278 	- glPopAttrib() bug
  279 	- glDrawBuffer(GL_NONE) works now
  280 
  281 2.1  December 14, 1996
  282     New:
  283 	- VMS support
  284 	- MS-DOS driver
  285 	- OpenStep support
  286 	- updated, combined Windows 95/NT driver
  287 	- implemented glGetLighti() and glGetTexGen*()
  288 	- GLX does garbage collection of ancillary buffers
  289     Bug fixes:
  290 	- removed unused _EXT constants from gl.h
  291 	- fixed polygon offset bugs
  292 	- Z coordinates of clipped lines were incorrect
  293 	- glEdgeFlag() in display lists didn't always work
  294 	- glLight*() in display lists didn't work
  295 	- fixed X line stipple bugs (Michael Pichler)
  296 	- glXUseXfonts XFreeFont/XFreeFontInfo bug fixed
  297 	- fixed a feedback bug
  298 	- glTexGen*() now transforms GL_EYE_PLANE by inverse modelview matrix
  299 	- polygons were sometimes culled instead of clipped
  300 	- triangle rasterizer suffered from float/int overflow exceptions
  301 	- fixed FP underflow exception in lighting (specular exponent)
  302 	- glEnable/glDisable of GL_EXT_vertex_array enums didn't work
  303 	- fixed free(NULL) in GLU tesselator code
  304 	- using 24-bit color on some X servers resulted in garbage rendering
  305 	- 32-bit per pixel mode for XFree86 now works
  306 	- glRotate(a,0,0,0) gave unpredictable results
  307 	- GL_LINE_STRIP with > 480 vertices had occasional clipping problems
  308 	- 8-bit TrueColor GLXPixmap rendering incorrectly required a colormap
  309 	- glMaterial() wasn't ignored when GL_COLOR_MATERIAL was enabled
  310 	- glEnable(GL_COLOR_MATERIAL) followed by glColor() didn't work right
  311 	- accumulation buffer was limited to positive values
  312 	- projective textures didn't work
  313 	- selection buffer overflows weren't handled correctly
  314     Changes:
  315 	- restored the GL_EXT_polygon_offset extension
  316 	- slightly faster RGB dithering
  317 	- the SVGA driver works again
  318 	- Amiga driver now distributed separately
  319 	- NeXT driver updated for Mesa 2.x
  320 
  321 2.2  March 14, 1997
  322     New:
  323 	- better color selection when dithering
  324 	- added GL_EXT_texture_object extension
  325 	- updated MS-DOS driver for DJGPP
  326 	- added openbsd make configuration
  327 	- faster dithered flat-shaded triangles
  328 	- various compilation problems with Motif widgets fixed
  329 	- gl.h, glx.h and glu.h name mangling option
  330 	- BeOS driver
  331 	- 3D texture mapping extension
  332 	- GL_MESA_resize_buffers extension
  333 	- morph3d, stex3d and spectex demos
  334 	- 3Dfx support
  335     Bug fixes:
  336 	- glColorMaterial should finally work right in all respects
  337 	- linear interpolation of mipmap levels was incorrectly weighted
  338 	- readpix.c didn't compile on Macintosh
  339 	- GL_INVERT and related logic ops didn't work right
  340 	- glTexImage[12]D() didn't check its parameters consistantly
  341 	- fixed a memory leak in glTexImage[12]D()
  342 	- kludged around a SunOS 5.x/GCC compiler bug in the feedback code
  343 	- glReadPixels aborted instead of normally catching some errors
  344 	- a few 1.1 constants were missing or misnamed in gl.h
  345 	- glBegin(p); glBegin(q); didn't generate an error
  346 	- fixed a memory leak in GLX code
  347 	- clipping of concave polygons could cause a core dump
  348 	- 1-component alpha texture maps didn't work
  349 	- fixed a GLU polygon tesselator bug
  350 	- polygons with colinear vertices were sometimes culled
  351 	- feedback triangle colors were wrong when using smooth shading
  352 	- textures with borders didn't work correctly
  353 	- colors returned in feedback mode were wrong when using lighting
  354 	- spotlights didn't effect ambient lighting correctly
  355 	- gluPartialDisk() had a few bugs
  356     Changes:
  357 	- device driver interface expanded to support texture mapping
  358 	- faster matrix inversion subroutine
  359 	- commented out #include "wmesa_extend.h" from src/wmesa.c
  360 	- fixed many compiler warnings in the demo programs
  361 
  362 2.3  June 30, 1997
  363     New:
  364 	- Mesa distribution divided into two pieces:  library code and demos
  365 	- faster vertex transformation, clip testing, lighting
  366 	- faster line drawing
  367 	- TrueColor visuals how have dithering (for depths < 24 bits)
  368 	- added MESA_NO_DITHER environment variable
  369 	- new device driver function: NearFar(), RenderVB(), RasterSetup()
  370 	- added LynxOS configuration
  371 	- added cygnus Win32 configuration
  372 	- added texcyl.c GLUT demo
  373 	- added XMesaDitherColor() to X/Mesa interface
  374 	- new NURBS code from Bogdan Sikorski
  375 	- added demos/shape.c (non-rectangular X window!)
  376     Bug fixes:
  377 	- glEnable/DisableClientState() were missing from GL/gl.h
  378 	- GL_SPHERE_MAP texcoord generation didn't work correctly
  379 	- glXGetConfig() returned wrong number of depth, stencil, accum bits
  380 	- glDrawPixels feedback/selection didn't examine RasterPos valid bit
  381 	- black and white were reversed on some monochrome displays
  382 	- fixed potential image memory leak (wasn't setting reference counter)
  383 	- glDrawPixels sometimes didn't recognize some GL state changes
  384 	- gluProject/UnProject() didn't check for divide by zero
  385 	- stex3d demo called random() and srandom(), not portable
  386 	- fixed memory leaks in context.c and drawpix.c
  387 	- fixed NULL dereferencing problem in gl_update_texture_state()
  388 	- glReadPixels between glBegin/glEnd didn't generate an error.
  389 	- fixed memory leak in polygon tesselator (Randy Frank)
  390 	- fixed seg fault bug drawing flat-shaded, depth-tested lines
  391 	- clipped GL_TRIANGLE_STRIPs sometimes had wrong color when flat-shaded
  392 	- glBindTexture sometimes didn't work
  393 	- fixed a bug deep in glXReleaseBuffersMESA()
  394 	- fog was mistakenly applied to alpha
  395 	- glPopMatrix didn't set "dirty matrix" flag
  396 	- glPolygonStipple pattern was sometimes wrong
  397 	- glClear wasn't disabled during feedback and selection
  398 	- fixed memory leak in glTexSubImage[123]D
  399     Changes:
  400 	- many library source files reorganized
  401 	- faster X color allocation, colors also freed when finished with them
  402 	- new texture sampling function pointer in texture objects
  403 	- incorporated 3Dfx VooDoo driver v0.16 into main source tree
  404 	- many 3Dfx driver updates
  405 	- cygnus Makefiles now included
  406 	- updated DOS driver
  407 	- made a few changes to dosmesa.c and wmesa.c (VB->Unclipped)
  408 	- internally, colors now stored in GLubytes, not GLfixed
  409 	- optimized changing of GL_SHININESS parameter
  410 
  411 2.4  September 18, 1997
  412     New:
  413 	- updated 3Dfx Glide driver
  414 	- hacks for 3Dfx rendering into an X window or fullscreen
  415 	- added depth buffer access functions to X/Mesa and OS/Mesa interfaces
  416     Bug fixes:
  417 	- pixel buffer could overflow with long, wide lines
  418 	- fixed FP underflow problems in lighting
  419 	- glTexSubImage1D() had an unitialized variable
  420 	- incomplete texture objects could cause a segfault
  421 	- glDrawPixels with GL_COMPILE_AND_EXECUTE caused infinite loop
  422 	- flat-shaded quads in a strip were miscolored if clipped
  423 	- mipmapped triangle lod computation now works correctly
  424 	- fixed a few under/overflow bugs in triangle rasterizer
  425 	- glArrayElement() assigned bad normal if normal array disabled
  426 	- changed argument to glXReleaseBuffersMESA()
  427 	- fixed small triangle underflow bugs in tritemp.h (hopefully)
  428 	- glBindTexture(target, 0) caused a crash
  429 	- glTexImage[123]D() with NULL image pointer caused crash
  430 	- glPixelStore parameters are now ignored during display list execution
  431 	- fixed a two-sided lighting w/ clipping bug (black vertices)
  432 	- textures with width!=height were sometimes mis-rendered
  433 	- "weird" projection matrices could cause div by 0, other fp errors
  434     Changes:
  435 	- changed precompiled header symbol from PCH to PC_HEADER
  436 	- split api.c into api1.c and api2.c
  437 	- added hash.c source file (but not used yet)
  438 	- a few Sun and HP configuration file changes
  439 	- MESA_GLX_FX env var replaces MESA_FX_WINDOW and MESA_FX_FULLSCREEN
  440 	- fixed a few cygnus build problems (src/Makefile.cygnus, src/wmesa.c)
  441 
  442 2.5  November 20, 1997
  443     New:
  444 	- updated 3Dfx driver (v20) for GLQuake
  445 	- added GL_EXT_paletted_texture extension
  446 	- added GL_EXT_shared_texture_palette extension
  447 	- added GL_EXT_point_parameters extension
  448 	- now including Mark Kilgard's GLUT library v3.6
  449 	- new GLUT-based demos in gdemos/
  450 	- added a few more Unix config targets
  451 	- added Intel X86 assembly language vertex transformation code
  452 	- 3Dfx/Glide driver for Mesa now recognizes SST_SCREENREFRESH env var
  453 	- Windows 95 S3 Virge driver
  454     Bug fixes:
  455 	- glCopyTexImage?D would crash due to uninitialized variable
  456 	- glColor w/ glColorMaterial in a display list caused a bug
  457 	- fixed several glDrawPixels() and ReadPixels() bugs in 3Dfx driver
  458 	- glVertex4*() vertices weren't always projected correctly
  459 	- trying to use mipmapped textured points or lines caused crash
  460 	- glColor[34][fd]() values now clamped to [0,1] before int conversion
  461     Changes:
  462 	- new device driver functions for texture mapping
  463 	- hash tables used for display list and texture object lookup
  464 	- fixed GLX visual handling code to avoid saving redundant visuals
  465 	- 3Dfx Glide libraries automatically linked to libMesaGL.so
  466 	- dropped the Cirrus Logic Mondello code since it's obsolete
  467 	- updated Cygnus Makefiles (Stephane Rehel)
  468 	- updated Windows MSVC++ Makefiles (Oleg Letsinsky)
  469 	- procedure for making library files has changed: scripts now take
  470 	  a major and minor version arguments.  Make-config changed a lot.
  471 	- new implementation of glTexSubImage2D()
  472 	- updated widgets-mesa directory to create libMesaGLwM.a (Motif widget)
  473 	- separate linux-glide and linux-386-glide configurations
  474 
  475 2.6  February 12, 1998
  476     New:
  477 	- Windows WGL functions
  478 	- updated VMS, DOS, Windows, Cygnus, BeOS, Amiga compilation support
  479 	- v0.22 of 3Dfx Glide driver
  480 	- more X86 assembly language optimizations
  481 	- faster blending for some modes
  482 	- XMesaSetFXmode() to switch between 3Dfx window and full-screen mode 
  483 	- added preliminary thread support
  484 	- added GLX_MESA_copy_sub_buffer extension
  485 	- some clipping optimizations
  486     Bug fixes:
  487 	- fixed shading/material bug when drawing long primitive strips
  488 	- fixed clipping problem in long primitive strips
  489 	- fixed clipping bug when using 3Dfx driver
  490 	- fixed a problem when trying to use X fonts w/ 3Dfx driver
  491 	- fixed a texture filter bug in 3Dfx/Glide driver
  492 	- fixed bug in 3Dfx/Glide driver involving depth mask & clearing
  493 	- glLoadMatrix to set projection matrix confused the 3Dfx driver
  494 	- non-identity texture matrices didn't work with linux-386 configs
  495 	- glGenTextures() didn't reserve the returned texture IDs
  496 	- NULL proxy image sent to glTexImageXD() caused crash
  497 	- added texture state validation optimization (Henk Kok)
  498 	- fixed colormap reuse problem when using both RGB and CI windows
  499 	- 32bpp True/DirectColor X visuals weren't recognized
  500 	- fixed potential problem in evaluators memory allocation
  501 	- fixed assorted demo compilation bugs
  502     Changes:
  503 	- replaced old Mesa/windows/ directory with Mesa/WIN32/ directory
  504 	- converted a few old glaux/gltk demos to GLUT
  505 	- renamed directories:  demos -> xdemos,  gdemos -> demos
  506 
  507 
  508 3.0  September 17, 1998
  509     New:
  510 	- OpenGL 1.2 API
  511 	- GL_EXT_abgr pixel format extension
  512 	- GL_SGIS_texture_edge_clamp extension
  513 	- GL_SGIS_multitexture extension (to be replaced by GL_ARB_multitex)
  514 	- GL_EXT_multitexture extension (to be replaced by GL_ARB_multitex)
  515 	- GL_EXT_rescale_normal extension and renormal.c demo
  516 	- GLX_SGI_video_sync extension (a no-op)
  517 	- antialiased lines
  518 	- glGetTexImage() now implemented
  519 	- glDraw/Copy/ReadPixels() optimizations
  520 	- optimized textured triangle code (Marten Stromberg)
  521 	- more optimization of dithered TrueColor triangles in X driver
  522 	- Linux GGI driver
  523 	- updated MGL driver
  524     Bug fixes:
  525 	- lots of assorted compilation fixes
  526 	- glInitNames didn't write initial hit record
  527 	- glBitmap didn't always check for invalid raster position
  528 	- switching between GLX and OSMesa contexts caused a crash
  529 	- fixed uninitialized variable in Mesa widget code
  530 	- fixed typo in texture code which caused book/texgen to crash
  531 	- fixed texture sampling bug when filter=GL_LINEAR and wrap=GL_CLAMP
  532 	- gluDisk() in POINT or LINE mode sometimes failed
  533 	- fixed texture + fog bug
  534 	- GL_COMPILE_AND_EXECUTE mode didn't work reliably
  535 	- glMultMatrix in projection matrix mode w/ 3Dfx driver could fail
  536 	- glDrawPixels(color index pixels) weren't converted to RGBA
  537 	- fixed possible getenv() buffer overflow security bug
  538 	- glBitmap in feedback mode was offset by xOrig, yOrig params
  539 	- device driver's DrawPixels hook was never used
  540 	- glDrawPixels with zoomY!=1 and top/bottom clipping didn't work
  541 	- glDrawPixels optimized for GL_LUMINANCE, GL_LUMINANCE_ALPHA, GLubyte
  542 	- fixed MakeCurrent bug in GLwRedrawObjects() in MesaWorkstation.c
  543 	- glCopyTexSubImage2D() didn't work with 3Dfx driver
  544 	- lines with width = 2 could cause crash
  545 	- glClear with scissor rect sometimes cleared whole buffer
  546 	- glTexSubImage2D( .. GL_COLOR_INDEX .. ) didn't work
  547 	- glTexImageXD( .. GL_ABGR_EXT .. ) didn't work
  548 	- computation of inverse modelview matrix sometimes failed
  549 	- fixed GL_CLAMP mode texture sampling bug
  550 	- textured line interpolation was somewhat broken
  551 	- textured triangle interpolation was also somewhat broken
  552 	- glGet(MODELVIEW/PROJECTION/TEXTURE_MATRIX_STACK_DEPTH) off by one
  553 	- evaluator state wasn't fully initialized
  554 	- texture coordinate clipping was buggy
  555 	- evaluator surfaces could be mis-colored
  556 	- glAccum(GL_RETURN, s) didn't obey glColorMask() settings
  557 	- zero area polygons shouldn't be culled if polygon mode is point/line
  558 	- clipped width and height of glReadPixels was sometimes off by one
  559 	- blending with alpha = 0 or 1.0 wasn't always exact
  560 	- reading of pixels from clipped region was buggy
  561 	- minor tweaking of X visual management in GLX emulator
  562 	- glPolygonStipple now obeys pixel unpacking parameters
  563 	- glGetPolygonStipple now obeys pixel packing parameters
  564 	- interleaved vertex array texture coordinates were broken
  565 	- query of proxy texture internal format was broken
  566 	- alpha channel wasn't reliably cleared
  567 	- fixed divide by zero error in gluScaleImage if dest size = 1 x 1
  568     Conformance bug fixes:
  569 	- GL_SELECTION_BUFFER_POINTER and GL_SELECTION_BUFFER_SIZE were missing
  570 	- GL_TEXTURE_INTERNAL_FORMAT was missing
  571 	- glGet*(GL_POLYGON_STIPPLE) was broken
  572 	- glPush/PopAttrib() didn't save/restore all texture state
  573 	- glBitmap in feedback mode didn't work
  574 	- feedback of texture coords didn't always work
  575 	- glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLbyte was broke
  576 	- glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLubyte was broke
  577 	- glDrawPixels w/ format=GL_STENCIL_INDEX, type=GL_BITMAP was broke
  578     Changes:
  579 	- upgraded GLUT to version 3.7
  580 	- only GL and GLU library code included in MesaLib.tar.gz
  581 	- GLUT and all demos now in MesaDemos.tar.gz
  582 	- glaux and gltk libraries removed
  583 	- IRIX -n32 and -64 libs go in lib32/ and lib64/ directories
  584 
  585 
  586 3.1 beta 1  November 19, 1998
  587     New:
  588 	- GL_EXT_stencil_wrap extension
  589 	- GL_INGR_blend_func_separate extension
  590 	- GL_ARB_multitexture extension
  591 	- GL_NV_texgen_reflection extension
  592 	- newly optimized vertex transformation code
  593 	- updated GLUT 3.7 code
  594 	- better precision when using 32-bit Z buffer
  595 	- Allegro DJGPP driver
  596     Bug fixes:
  597 	- glCopyPixels between front/back buffers didn't copy alpha correctly
  598 	- fixed out-of-bounds memory access in optimized 2-D texture code
  599 	- glPixelStorei didn't accept GL_PACK/UNPACK_IMAGE_HEIGHT parameter
  600 	- glGet*() didn't accept GL_MAX_3D_TEXTURE_SIZE parameter
  601 	- clipping of texture coordinates sometimes had bad R,Q values
  602 	- GL_CLAMP_TO_EDGE texture sampling was off by 0.5 texels
  603 	- glEdgeFlagPointer() now takes a GLvoid * instead of GLboolean *
  604 	- texture was sometimes applied twice with 3Dfx driver
  605 	- glPush/PopAttrib() fouled up texture object reference counts
  606 	- glDeleteLists(0, n) caused assertion failure
  607 	- bilinear texture sampling wasn't accurate enough
  608 	- glClear w/ glDepthMask(GL_FALSE) didn't work right on 3Dfx
  609 	- color components were reversed on big endian 32 bpp X visuals
  610     Changes:
  611 	- removed GL_EXT_multitexture extension
  612 
  613 
  614 3.1 beta 2  May 24, 1999
  615     New:
  616 	- multi-textured points and lines (mjk@nvidia.com)
  617 	- optimized 24bpp X rendering (bernd.paysan@gmx.de)
  618 	- added allegro support (bernie-t@geocities.com)
  619 	- cleaned-up Windows-related stuff (Ted Jump)
  620 	- minor stereo changes (KendallB@scitechsoft.com)
  621 	- new BeOS driver which implements BGLView class
  622 	- new Direct3D driver (see src/D3D)
  623 	- more efficient filled gluCylinder() function
  624 	- utilities:  util/showbuffer.[ch] and util/glstate.[ch]
  625 	- fixed some IRIX compiler warnings
  626 	- added support for building Mesa in XFree86 with
  627 	    SGI's GLX (kevin@precisioninsight.com)
  628     Bug fixes:
  629 	- a variety of Windows/Mesa bug fixes (mjk@nvidia.com)
  630 	- packed pixel images weren't unpacked correctly
  631 	- patches some win32 files in GLUT (mjk@nvidia.com)
  632 	- glTexImage[123]D() didn't accept internalFormat == GL_COLOR_INDEX
  633 	- fixed lighting bug in Keith's new shading code
  634 	- fixed texture segfault seen in Lament screensaver
  635 	- fixed miscellaneous low-memory bugs
  636 	- glClear(GL_COLOR_BUFFER_BIT) with RGBA or CI masking was broken
  637 	- GL_LINEAR sampling of 3D textures was broken
  638 	- fixed SVR4 'cc' compiler macro problem (dawes@xfree86.org)
  639 	- added GL_TEXTURE_PRIORITY fix (keithh@netcomuk.co.uk)
  640 	- fixed wide point and wide line conformance bugs (brianp)
  641     Changes:
  642 	- some device driver changes (see src/dd.h)
  643 	- new copyright on core Mesa code
  644 
  645 
  646 3.1 beta 3  September 17, 1999
  647     New:
  648 	- optimized glAccum function
  649 	- optimized 24bpp rendering in XMesa driver
  650 	- GLU 1.2 polygon tessellator
  651     Bug Fixes:
  652 	- glGetTexLevelParameter wasn't fully implemented
  653 	- glXUseXFont now handles multi-byte fonts
  654 	- glIsEnabled(GL_TEXTURE_2D / 3D) returned wrong result
  655 	- alpha channel of blending points, lines was sometimes incorrect
  656     Changes:
  657 	- New library names:  "libGL" instead of "libMesaGL"
  658 	- New library numbering: libGL.so.1.2.310
  659 	- New subdirectories:  docs/ and bin/
  660 	- New Makefile-system (autoconf,automake,libtool)
  661 
  662 
  663 3.1 final  December 14, 1999
  664     New:
  665 	- added demos/gloss.c
  666 	- added xdemos/glxdpyinfo.c
  667 	- added GLX_ARB_get_proc_address extension
  668 	- rewritten glTexImage code paths (faster, less memory, bug fixes)
  669     Bug Fixes:
  670 	- several vertex array bug fixes
  671 	- overlapping glCopyPixels with pixel zooming now works
  672 	- glXUseXFont() bitmaps were vertically shifted by one pixel
  673 	- glCopyPixels with pixel zooming now works
  674 
  675 
  676 3.2 final  April 24, 2000
  677     Bug fixes:
  678 	- fixed memcpy bugs in span.c
  679 	- fixed missing glEnd problem in demos/tessdemo.c
  680 	- fixed bug when clearing 24bpp Ximages
  681 	- fixed clipping problem found in Unreal Tournament
  682 	- fixed Loki's "ice bug" and "crazy triangles" seen in Heretic2
  683 	- fixed Loki's 3dfx RGB vs BGR bug
  684 	- fixed Loki's 3dfx smooth/flat shading bug in SoF
  685     Changes:
  686 	- updated docs/README file
  687 	- use bcopy() optimizations on FreeBSD
  688 	- re-enabled the optimized persp_textured_triangle() function
  689 
  690 
  691 3.2.1  July 19, 2000
  692     Bug fixes:
  693 	- gluBuild2DMipmaps() didn't accept GL_BGRA
  694 	- Fixed compile/makefile problems on IRIX
  695 	- fixed segfault in 3dfx driver when using GL selection/feedback
  696 	- no longer cull very, very tiny triangles
  697 	- blending w/ drawbuffer==GL_FRONT_BACK caused segfault (sw rendering)
  698 	- fixed Motif detection code in widgets-mesa/configure.in
  699 	- glColorMaterial and glMaterial updates to emissive and ambient
  700 	  didn't always work right
  701 	- Specular highlights weren't always in the right place
  702 	- clipped GL_LINE mode polygons had interior lines appear
  703 	- blend term GL_ONE_MINUS_CONSTANT_ALPHA was broken
  704 	- GL_NICEST fog didn't always work with flat shading
  705 	- glRect commands in display lists were sometimes miscolored
  706 	- Line Z offset didn't always work
  707 	- fixed texgen normal vector problem (gloss's teapot)
  708 	- numerous GL conformance bugs fixed
  709     Changes:
  710 	- glColorMask(false, false, false, false) handled better/faster
  711 	- reverted to old GLU polygon tessellator, GLU 1.1
  712 	- updated Win32 build files
  713 
  714 
  715 3.3  July 21, 2000
  716     New:
  717 	- antialiased triangles now implemented
  718 	- GL_EXT_texture_env_add texture mode extension
  719 	- GLX 1.3 API
  720 	- support for separate draw/read buffers (ie GL_SGI_make_current_read)
  721 	- thread-safe API dispath
  722 	- improved glxinfo program
  723 	- demos/texdown program to measure texture download performance
  724 	- glext.h header file
  725 	- demos/geartrain program
  726 	- GL_EXT_texture_lod_bias extension
  727 	- demos/lodbias program
  728 	- further optimized glRead/DrawPixels for 16-bit TrueColor X visuals
  729 	- GLX_EXT_visual_rating extension (a no-op, however)
  730 	- GL_HP_occlusion_test extension (for X and OS/Mesa drivers)
  731 	- demos/occlude program
  732 	- GL_SGIS_pixel_texture and GL_SGIX_pixel_texture extensions
  733 	- demos/pixeltex program
  734 	- GL_SGI_color_matrix extension
  735 	- GL_SGI_color_table extension
  736 	- GL_EXT_histogram extension
  737 	- GL_ARB_texture_cube_map extension
  738 	- added xdemos/glxheads and xdemos/manywin
  739 	- demos/texenv.c demo
  740 	- GL_EXT_texture_env_combine extension (by Holger Waechtler)
  741 	- Xlib driver is now thread-safe (see xdemos/glthreads)
  742     Bug Fixes:
  743 	- various GL conformance failures fixed since 3.2.1
  744     Changes:
  745 	- gl.h now uses #defines instead of C enums for all tokens
  746 	- glu.h now uses #defines instead of C enums for all tokens
  747 	- moved programs from 3Dfx/demos/ into demos/ directory
  748 
  749 
  750 3.4  November 3, 2000
  751     New:
  752 	- optimized glDrawPixels for glPixelZoom(1,-1)
  753     Bug Fixes:
  754 	- widgets-mesa/src/*.c files were missing from 3.3 distro
  755 	- include/GL/mesa_wgl.h file was missing from 3.3 distro
  756 	- fixed some Win32 compile problems
  757 	- texture object priorities weren't getting initialized to 1.0
  758 	- glAreTexturesResident return value was wrong when using hardware
  759 	- glXUseXFont segfaulted when using 3dfx driver (via MESA_GLX_FX)
  760 	- glReadPixels with GLushort packed types was broken
  761 	- fixed a few bugs in the GL_EXT_texture_env_combine texture code
  762 	- glPush/PopAttrib(GL_ENABLE_BIT) mishandled multi-texture enables
  763 	- fixed some typos/bugs in the VB code
  764 	- glDrawPixels(GL_COLOR_INDEX) to RGB window didn't work
  765 	- optimized glDrawPixels paths weren't being used
  766 	- per-fragment fog calculation didn't work without a Z buffer
  767 	- improved blending accuracy, fixes Glean blendFunc test failures
  768 	- glPixelStore(GL_PACK/UNPACK_SKIP_IMAGES) wasn't handled correctly
  769 	- glXGetProcAddressARB() didn't always return the right address
  770 	- gluBuild[12]DMipmaps() didn't grok the GL_BGR pixel format
  771 	- texture matrix changes weren't always detected (GLUT projtex demo)
  772 	- fixed random color problem in vertex fog code
  773 	- fixed Glide-related bug that let Quake get a 24-bit Z buffer
  774     Changes:
  775 	- finished internal support for compressed textures for DRI
  776 
  777 
  778 3.4.1  February 14, 2001
  779     New:
  780 	- fixed some Linux build problems
  781 	- fixed some Windows build problems
  782 	- GL_EXT_texture_env_dot3 extension (Gareth Hughes)
  783     Bug fixes:
  784 	- added RENDER_START/RENDER_FINISH macros for glCopyTexImage in DRI
  785 	- various state-update code changes needed for DRI bugs
  786 	- disabled pixel transfer ops in glColorTable commands, not needed
  787 	- fixed bugs in glCopyConvolutionFilter1D/2D, glGetConvolutionFilter
  788 	- updated sources and fixed compile problems in widgets-mesa/
  789 	- GLX_PBUFFER enum value was wrong in glx.h
  790 	- fixed a glColorMaterial lighting bug
  791 	- fixed bad args to Read/WriteStencilSpan in h/w stencil clear function
  792 	- glXCopySubBufferMESA() Y position was off by one
  793 	- Error checking of glTexSubImage3D() was broken (bug 128775)
  794 	- glPopAttrib() didn't restore all derived Mesa state correctly
  795 	- Better glReadPixels accuracy for 16bpp color - fixes lots of OpenGL
  796 	  conformance problems at 16bpp.
  797 	- clearing depth buffer with scissoring was broken, would segfault
  798 	- OSMesaGetDepthBuffer() returned bad bytesPerValue value
  799 	- fixed a line clipping bug (reported by Craig McDaniel)
  800 	- fixed RGB color over/underflow bug for very tiny triangles
  801     Known problems:
  802 	- NURBS or evaluator surfaces inside display lists don't always work
  803 
  804 
  805 3.4.2  May 17, 2001
  806     Bug fixes:
  807 	- deleting the currently bound texture could cause bad problems
  808 	- using fog could result in random vertex alpha values
  809 	- AA triangle rendering could touch pixels outside right window bound
  810 	- fixed byteswapping problem in clear_32bit_ximage() function
  811 	- fixed bugs in wglUseFontBitmapsA(), by Frank Warmerdam
  812 	- fixed memory leak in glXUseXFont()
  813 	- fragment sampling in AA triangle function was off by 1/2 pixel
  814 	- Windows: reading pixels from framebuffer didn't always work
  815 	- glConvolutionFilter2D could segfault or cause FP exception
  816 	- fixed segfaults in FX and X drivers when using tex unit 1 but not 0
  817 	- GL_NAND logicop didn't work right in RGBA mode
  818 	- fixed a memory corruption bug in vertex buffer reset code
  819 	- clearing the softwara alpha buffer with scissoring was broken
  820 	- fixed a few color index mode fog bugs
  821 	- fixed some bad assertions in color index mode
  822 	- fixed FX line 'stipple' bug #420091
  823 	- fixed stencil buffer clear width/height typo
  824 	- fixed GL error glitches in gl[Client]ActiveTextureARB()
  825 	- fixed Windows compilation problem in texutil.c
  826 	- fixed 1/8-pixel AA triangle sampling error
  827     Changes:
  828 	- optimized writing mono-colored pixel spans to X pixmaps
  829 	- increased max viewport size to 2048 x 2048
  830 
  831 
  832 3.5  June 21, 2001
  833     New:
  834 	- internals of Mesa divided into modular pieces (Keith Whitwell)
  835 	- 100% OpenGL 1.2 conformance (passes all conformance tests)
  836 	- new AA line algorithm
  837 	- GL_EXT_convolution extension
  838 	- GL_ARB_imaging subset
  839 	- OSMesaCreateContextExt() function
  840 	- GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add)
  841 	- GL_MAX_TEXTURE_UNITS_ARB now defaults to eight
  842 	- GL_EXT_fog_coord extension (Keith Whitwell)
  843 	- GL_EXT_secondary_color extension (Keith Whitwell)
  844 	- GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add)
  845 	- GL_SGIX_depth_texture extension
  846 	- GL_SGIX_shadow and GL_SGIX_shadow_ambient extensions
  847 	- demos/shadowtex.c demo of GL_SGIX_depth_texture and GL_SGIX_shadow
  848 	- GL_ARB_texture_env_combine extension
  849 	- GL_ARB_texture_env_dot3 extension
  850 	- GL_ARB_texture_border_clamp (aka GL_SGIS_texture_border_clamp)
  851 	- OSMesaCreateContextExt() function
  852 	- libOSMesa.so library, contains the OSMesa driver interface
  853 	- GL/glxext.h header file for GLX extensions
  854 	- somewhat faster software texturing, fogging, depth testing
  855 	- all color-index conformance tests now pass (only 8bpp tested)
  856 	- SPARC assembly language TCL optimizations (David Miller)
  857 	- GL_SGIS_generate_mipmap extension
  858     Bug Fixes:
  859 	- fbiRev and tmuRev were unitialized when using Glide3
  860 	- fixed a few color index mode conformance failures; all pass now
  861 	- now appling antialiasing coverage to alpha after texturing
  862 	- colors weren't getting clamped to [0,1] before color table lookup
  863 	- fixed RISC alignment errors caused by COPY_4UBV macro
  864 	- drawing wide, flat-shaded lines could cause a segfault
  865 	- vertices now snapped to 1/16 pixel to fix rendering of tiny triangles
  866     Changes:
  867 	- SGI's Sample Implementation (SI) 1.3 GLU library replaces Mesa GLU
  868 	- new libOSMesa.so library, contains the OSMesa driver interface
  869 
  870 
  871 4.0  October 22, 2001
  872     New:
  873 	- Mesa 4.0 implements the OpenGL 1.3 specification
  874 	- GL_IBM_rasterpos_clip extension
  875 	- GL_EXT_texture_edge_clamp extension (aka GL_SGIS_texture_edge_clamp)
  876 	- GL_ARB_texture_mirrored_repeat extension
  877 	- WindML UGL driver (Stephane Raimbault)
  878 	- added OSMESA_MAX_WIDTH/HEIGHT queries
  879 	- attempted compiliation fixes for Solaris 5, 7 and 8
  880 	- updated glext.h and glxext.h files
  881 	- updated Windows driver (Karl Schultz)
  882     Bug fixes:
  883 	- added some missing GLX 1.3 tokens to include/GL/glx.h
  884 	- GL_COLOR_MATRIX changes weren't recognized by teximage functions
  885 	- glCopyPixels with scale and bias was broken
  886 	- glRasterPos with lighting could segfault
  887 	- glDeleteTextures could leave a dangling pointer
  888 	- Proxy textures for cube maps didn't work
  889 	- fixed a number of 16-bit color channel bugs
  890 	- fixed a few minor memory leaks
  891 	- GLX context sharing was broken in 3.5
  892 	- fixed state-update bugs in glPopClientAttrib()
  893 	- fixed glDrawRangeElements() bug
  894 	- fixed a glPush/PopAttrib() bug related to texture binding
  895 	- flat-shaded, textured lines were broken
  896 	- fixed a dangling pointer problem in the XMesa code (Chris Burghart)
  897 	- lighting didn't always produce the correct alpha value
  898 	- fixed 3DNow! code to not read past end of arrays (Andrew Lewycky)
  899 
  900 
  901 4.0.1 December 17, 2001
  902     New:
  903 	- better sub-pixel sample positions for AA triangles (Ray Tice)
  904 	- slightly faster blending for (GL_ZERO, GL_ONE) and (GL_ONE, GL_ZERO)
  905     Bug fixes:
  906 	- added missing break statements in glGet*() for multisample cases
  907 	- fixed uninitialized hash table mutex bug (display lists / texobjs)
  908 	- fixed bad teximage error check conditional (bug 476846)
  909 	- fixed demos readtex.c compilation problem on Windows (Karl Schultz)
  910 	- added missing glGet() query for GL_MAX_TEXTURE_LOD_BIAS_EXT
  911 	- silence some compiler warnings (gcc 2.96)
  912 	- enable the #define GL_VERSION_1_3 in GL/gl.h
  913 	- added GL 1.3 and GLX 1.4 entries to gl_mangle.h and glx_mangle.h
  914 	- fixed glu.h typedef problem found with MSDev 6.0
  915 	- build libGL.so with -Bsymbolic (fixes bug found with Chromium)
  916 	- added missing 'const' to glXGetContextIDEXT() in glxext.h
  917 	- fixed a few glXGetProcAddress() errors (texture compression, etc)
  918 	- fixed start index bug in compiled vertex arrays (Keith)
  919 	- fixed compilation problems in src/SPARC/glapi_sparc.S
  920 	- fixed triangle strip "parity" bug found in VTK medical1 demo (Keith)
  921 	- use glXGetProcAddressARB in GLUT to avoid extension linking problems
  922 	- provoking vertex of flat-shaded, color-index triangles was wrong
  923 	- fixed a few display list bugs (GLUT walker, molecule, etc) (Keith)
  924 	- glTexParameter didn't flush the vertex buffer (Ray Tice)
  925 	- feedback attributes for glDraw/CopyPixels and glBitmap were wrong
  926 	- fixed bug in normal length caching (ParaView lighting bug)
  927 	- fixed separate_specular color bug found in Chimera (18 Dec 2001)
  928 
  929 
  930 4.0.2  April 2, 2002
  931     New:
  932 	- New DOS (DJGPP) driver written by Daniel Borca
  933 	- New driver interface functions for TCL drivers (such as Radeon DRI)
  934 	- GL_RENDERER string returns "Mesa Offscreen16" or "Mesa Offscreen32"
  935 	  if using deep color channels
  936 	- latest GL/glext.h and GL/glxext.h headers from SGI
  937     Bug fixes:
  938 	- GL_BLEND with non-black texture env color wasn't always correct
  939 	- GL_REPLACE with GL_RGB texture format wasn't always correct (alpha)
  940 	- glTexEnviv( pname != GL_TEXTURE_ENV_COLOR ) was broken
  941 	- glReadPixels was sometimes mistakenly clipped by the scissor box
  942 	- glDraw/ReadPixels didn't catch all the errors that they should have
  943 	- Fixed 24bpp rendering problem in Windows driver (Karl Schultz)
  944 	- 16-bit GLchan mode fixes (m_trans_tmp.h, s_triangle.c)
  945 	- Fixed 1-bit float->int conversion bug in glDrawPixels(GL_DEPTH_COMP)
  946 	- glColorMask as sometimes effecting glXSwapBuffers()
  947 	- fixed a potential bug in XMesaGarbageCollect()
  948 	- N threads rendering into one window didn't work reliably
  949 	- glCopyPixels didn't work for deep color channels
  950 	- improved 8 -> 16bit/channel texture image conversion (Gerk Huisma)
  951 	- glPopAttrib() didn't correctly restore user clip planes
  952 	- user clip planes failed for some perspective projections (Chromium)
  953     Known bugs:
  954 	- mipmap LOD computation
  955 
  956 
  957 4.0.3  June 25, 2002
  958     New:
  959 	- updated GL/glext.h file (version 15)
  960 	- corrected MMX blend code (Jose Fonseca)
  961 	- support for software-based alpha planes in Windows driver
  962 	- updated GGI driver (Filip Spacek)
  963     Bug fixes:
  964 	- glext.h had wrong values for GL_DOT3_RGB[A]_EXT tokens
  965 	- OSMesaMakeCurrent() didn't recognize buffer size changes
  966 	- assorted conformance fixes for 16-bit/channel rendering
  967 	- texcombine alpha subtraction mode was broken
  968 	- fixed lighting bug with non-uniform scaling and display lists
  969 	- fixed bug when deleting shared display lists
  970 	- disabled SPARC cliptest assembly code (Mesa bug 544665)
  971 	- fixed a couple Solaris compilation/link problems
  972 	- blending clipped glDrawPixels didn't always work
  973 	- glGetTexImage() didn't accept packed pixel types
  974 	- glPixelMapu[is]v() could explode given too large of pixelmap
  975 	- glGetTexParameter[if]v() didn't accept GL_TEXTURE_MAX_ANISOTROPY_EXT
  976 	- glXCopyContext() could lead to segfaults
  977 	- glCullFace(GL_FRONT_AND_BACK) didn't work (bug 572665)
  978     Changes:
  979 	- lots of C++ (g++) code clean-ups
  980 	- lots of T&L updates for the Radeon DRI driver
  981     Known bugs:
  982 	- mipmap LOD computation (fixed for Mesa 4.1)
  983 
  984 
  985 4.0.4  October 3, 2002
  986     New:
  987 	- GL_NV_texture_rectangle extension
  988 	- updated glext.h header (version 17)
  989 	- updated DOS driver (Daniel Borca)
  990 	- updated BeOS R5 driver (Philippe Houdoin)
  991 	- added GL_IBM_texture_mirror_repeat
  992 	- glxinfo now takes -l option to print interesting OpenGL limits info
  993 	- GL_MESA_ycbcr_texture extension
  994 	- GL_APPLE_client_storage extension (for some DRI drivers only)
  995 	- GL_MESA_pack_invert extension
  996     Bug fixes:
  997 	- fixed GL_LINEAR fog bug by adding clamping
  998 	- fixed FP exceptions found using Alpha CPU
  999 	- 3dfx MESA_GLX_FX=window (render to window) didn't work
 1000 	- fixed memory leak in wglCreateContest (Karl Schultz)
 1001 	- define GLAPIENTRY and GLAPI if undefined in glu.h
 1002 	- wglGetProcAddress didn't handle all API functions
 1003 	- when testing for OpenGL 1.2 vs 1.3, check for GL_ARB_texture_cube_map
 1004 	- removed GL_MAX_CONVOLUTION_WIDTH/HEIGHT from glGetInteger/Float/etc()
 1005 	- error checking in compressed tex image functions had some glitches
 1006 	- fixed AIX compile problem in src/config.c
 1007 	- glGetTexImage was using pixel unpacking instead of packing params
 1008 	- auto-mipmap generation for cube maps was incorrect
 1009     Changes:
 1010 	- max texture units reduced to six to accommodate texture rectangles
 1011 	- removed unfinished GL_MESA_sprite_point extension code
 1012 
 1013 
 1014 4.1  October 29, 2002
 1015     New:
 1016 	- GL_NV_vertex_program extension
 1017 	- GL_NV_vertex_program1_1 extension
 1018 	- GL_ARB_window_pos extension
 1019 	- GL_ARB_depth_texture extension
 1020 	- GL_ARB_shadow extension
 1021 	- GL_ARB_shadow_ambient extension
 1022 	- GL_EXT_shadow_funcs extension
 1023 	- GL_ARB_point_parameters extension
 1024 	- GL_ARB_texture_env_crossbar
 1025 	- GL_NV_point_sprite extension
 1026 	- GL_NV_texture_rectangle extension
 1027 	- GL_EXT_multi_draw_arrays extension
 1028 	- GL_EXT_stencil_two_side extension
 1029 	- GLX_SGIX_fbconfig and GLX_SGIX_pbuffer extensions
 1030 	- GL_ATI_texture_mirror_once extension (Ian Romanick)
 1031 	- massive overhaul/simplification of software rasterizer module,
 1032 	  many contributions from Klaus Niederkrueger
 1033 	- faster software texturing in some cases (i.e. trilinear filtering)
 1034 	- new OSMesaGetProcAddress() function
 1035 	- more blend modes implemented with MMX code (Jose Fonseca)
 1036 	- added glutGetProcAddress() to GLUT
 1037 	- added GLUT_FPS env var to compute frames/second in glutSwapBuffers()
 1038 	- pbinfo and pbdemo PBuffer programs
 1039 	- glxinfo -v prints transprent pixel info (Gerd Sussner)
 1040     Bug fixes:
 1041 	- better mipmap LOD computation (prevents excessive blurriness)
 1042 	- OSMesaMakeCurrent() didn't recognize buffer size changes
 1043 	- assorted conformance fixes for 16-bit/channel rendering
 1044 	- texcombine alpha subtraction mode was broken
 1045 	- fixed some blend problems when GLchan==GLfloat (Gerk Huisma)
 1046 	- clamp colors to [0,inf] in OSMesa if GLchan==GLfloat (Gerk Huisma)
 1047 	- fixed divide by zero error in NURBS tessellator (Jon Perry)
 1048 	- fixed GL_LINEAR fog bug by adding clamping
 1049 	- fixed FP exceptions found using Alpha CPU
 1050 	- 3dfx/glide driver render-to-window feature was broken
 1051 	- added missing GLX_TRANSPARENT_RGB token to glx.h
 1052 	- fixed error checking related to paletted textures
 1053 	- fixed reference count error in glDeleteTextures (Randy Fayan)
 1054     Changes:
 1055 	- New spec file and Python code to generate some GL dispatch files
 1056 	- Glide driver defaults to "no" with autoconf/automake
 1057 	- updated demos/stex3d with new options
 1058 
 1059 
 1060 5.0  November 13, 2002
 1061     New:
 1062 	- OpenGL 1.4 support (glGetString(GL_VERSION) returns "1.4")
 1063 	- removed some overlooked debugging code
 1064 	- glxinfo updated to support GLX_ARB_multisample
 1065 	- GLUT now support GLX_ARB_multisample
 1066 	- updated DOS driver (Daniel Borca)
 1067     Bug fixes:
 1068 	- GL_POINT and GL_LINE-mode polygons didn't obey cull state
 1069 	- fixed potential bug in _mesa_align_malloc/calloc()
 1070 	- fixed missing triangle bug when running vertex programs
 1071 	- fixed a few HPUX compilation problems
 1072 	- FX (Glide) driver didn't compile
 1073 	- setting GL_TEXTURE_BORDER_COLOR with glTexParameteriv() didn't work
 1074 	- a few EXT functions, like glGenTexturesEXT, were no-ops
 1075 	- a few OpenGL 1.4 functions like glFogCoord*, glBlendFuncSeparate,
 1076 	  glMultiDrawArrays and glMultiDrawElements were missing
 1077 	- glGet*(GL_ACTIVE_STENCIL_FACE_EXT) was broken
 1078 	- Pentium 4 Mobile was mistakenly identified as having 3DNow!
 1079 	- fixed one-bit error in point/line fragment Z calculation
 1080 	- fixed potential segfault in fakeglx code
 1081 	- fixed color overflow problem in DOT3 texture env mode
 1082 
 1083 
 1084 5.0.1  March 30, 2003
 1085     New:
 1086 	- DOS driver updates from Daniel Borca
 1087 	- updated GL/gl_mangle.h file (Bill Hoffman)
 1088     Bug fixes:
 1089 	- auto mipmap generation for cube maps was broken (bug 641363)
 1090 	- writing/clearing software alpha channels was unreliable
 1091 	- minor compilation fixes for OS/2 (Evgeny Kotsuba)
 1092 	- fixed some bad assertions found with shadowtex demo
 1093 	- fixed error checking bug in glCopyTexSubImage2D (bug 659020)
 1094 	- glRotate(angle, -x, 0, 0) was incorrect (bug 659677)
 1095 	- fixed potential segfault in texture object validation (bug 659012)
 1096 	- fixed some bogus code in _mesa_test_os_sse_exception_support (Linus)
 1097 	- fix fog stride bug in tnl code for h/w drivers (Michel Danzer)
 1098 	- fixed glActiveTexture / glMatrixMode(GL_TEXTURE) bug (#669080)
 1099 	- glGet(GL_CURRENT_SECONDARY_COLOR) should return 4 values, not 3
 1100 	- fixed compilation problem on Solaris7/x86 (bug 536406)
 1101 	- fixed prefetch bug in 3DNow! code (Felix Kuhling)
 1102 	- fixed NeXT build problem (FABSF macro)
 1103 	- glDrawPixels Z values when glPixelZoom!=1 were invalid (bug 687811)
 1104 	- zoomed glDraw/CopyPixels with clipping sometimes failed (bug 689964)
 1105 	- AA line and triangle Z values are now rounded, not truncated
 1106 	- fixed color interpolation bug when GLchan==GLfloat (bug 694461)
 1107 	- glArePrograms/TexturesResident() wasn't 100% correct (Jose Fonseca)
 1108 	- fixed a minor GL_COLOR_MATERIAL bug
 1109 	- NV vertex program EXP instruction was broken
 1110 	- glColorMask misbehaved with X window / pixmap rendering
 1111 	- fix autoconf/libtool GLU C++ linker problem on Linux (a total hack)
 1112 	- attempt to fix GGI compilation problem when MesaDemos not present
 1113 	- NV vertex program ARL-relative fetches didn't work
 1114     Changes:
 1115 	- use glPolygonOffset in gloss demo to avoid z-fighting artifacts
 1116 	- updated winpos and pointblast demos to use ARB extensions
 1117 	- disable SPARC normal transformation code (bug 673938)
 1118 	- GLU fixes for OS/2 (Evgeny Kotsuba)
 1119 
 1120 
 1121 5.0.2  September 5, 2003
 1122     Bug fixes:
 1123 	- fixed texgen problem causing texcoord's Q to be zero (stex3d)
 1124 	- default GL_TEXTURE_COMPARE_MODE_ARB was wrong
 1125 	- GL_CURRENT_MATRIX_NV query was wrong
 1126 	- GL_CURRENT_MATRIX_STACK_DEPTH_NV query was off by one
 1127 	- GL_LIST_MODE query wasn't correct
 1128 	- GL_FOG_COORDINATE_SOURCE_EXT query wasn't supported
 1129 	- GL_SECONDARY_COLOR_ARRAY_SIZE_EXT query returned wrong value
 1130 	- blended, wide lines didn't always work correctly (bug 711595)
 1131 	- glVertexAttrib4svNV w component was always 1
 1132 	- fixed bug in GL_IBM_rasterpos_clip (missing return)
 1133 	- GL_DEPTH_TEXTURE_MODE = GL_ALPHA didn't work correctly
 1134 	- a few Solaris compilation fixes
 1135 	- fixed glClear() problem for DRI drivers (non-existant stencil, etc)
 1136 	- fixed int/REAL mixup in GLU NURBS curve evaluator (Eric Cazeaux)
 1137 	- fixed delete [] bug in SI GLU (bug 721765) (Diego Santa Cruz)
 1138 	- glFog() didn't clamp fog colors
 1139 	- fixed bad float/int conversion for GL_TEXTURE_PRIORITY in the
 1140 	  gl[Get]TexParameteri[v] functions
 1141 	- fixed invalid memory references in glTexGen functions (bug 781602)
 1142 	- integer-valued color arrays weren't handled correctly
 1143 	- glDrawPixels(GL_DEPTH_COMPONENT) with glPixelZoom didn't work
 1144 	- GL_EXT_texture_lod_bias is part of 1.4, overlooked in 5.0.1
 1145     Changes:
 1146 	- build GLUT with -fexceptions so C++ apps propogate exceptions
 1147 
 1148 
 1149 5.1  December 17, 2003
 1150     New:
 1151 	- reorganized directory tree
 1152 	- GL_ARB_vertex/fragment_program extensions (Michal Krol & Karl Rasche)
 1153 	- GL_ATI_texture_env_combine3 extension (Ian Romanick)
 1154 	- GL_SGI_texture_color_table extension (Eric Plante)
 1155 	- GL_NV_fragment_program extension
 1156 	- GL_NV_light_max_exponent extension
 1157 	- GL_EXT_texture_rectangle (identical to GL_NV_texture_rectangle)
 1158 	- GL_ARB_occlusion_query extension
 1159 	- GL_ARB_point_sprite extension
 1160 	- GL_ARB_texture_non_power_of_two extension
 1161 	- GL_IBM_multimode_draw_arrays extension
 1162 	- GL_EXT_texture_mirror_clamp extension (Ian Romanick)
 1163 	- GL_ARB_vertex_buffer_object extension
 1164 	- new X86 feature detection code (Petr Sebor)
 1165 	- less memory used for display lists and vertex buffers
 1166 	- demo of per-pixel lighting with a fragment program (demos/fplight.c)
 1167 	- new version (18) of glext.h header
 1168 	- new spriteblast.c demo of GL_ARB_point_sprite
 1169 	- faster glDrawPixels in X11 driver in some cases (see RELNOTES-5.1)
 1170 	- faster glCopyPixels in X11 driver in some cases (see RELNOTES-5.1)
 1171     Bug fixes:
 1172 	- really enable OpenGL 1.4 features in DOS driver.
 1173 	- fixed issues in glDrawPixels and glCopyPixels for very wide images
 1174 	- glPixelMapf/ui/usv()'s size parameter is GLsizei, not GLint
 1175 	- fixed some texgen bugs reported by Daniel Borca
 1176 	- fixed wglMakeCurrent(NULL, NULL) bug (#835861)
 1177 	- fixed glTexSubImage3D z-offset bug (Cedric Gautier)
 1178 	- fixed RGBA blend enable bug (Ville Syrjala)
 1179 	- glAccum is supposed to be a no-op in selection/feedback mode
 1180 	- fixed texgen bug #597589 (John Popplewell)
 1181     Changes:
 1182 	- dropped API trace feature (src/Trace/)
 1183 	- documentation overhaul.  merged with website content.  more html.
 1184 	- glxgears.c demo updated to use GLX swap rate extensions
 1185 	- glTexImage1/2/3D now allows width/height/depth = 0
 1186 	- disable SPARC asm code on Linux (bug 852204)
 1187 
 1188 
 1189 6.0  January 16, 2004
 1190     New:
 1191 	- full OpenGL 1.5 support
 1192 	- updated GL/glext.h file to version 21
 1193     Changes:
 1194 	- changed max framebuffer size to 4Kx4K (MAX_WIDTH/HEIGHT in config.h)
 1195     Bug fixes:
 1196 	- fixed bug in UNCLAMPED_FLOAT_TO_UBYTE macro; solves a color
 1197 	  clamping issue
 1198 	- updated suno5-gcc configs
 1199 	- glColor3 functions sometimes resulted in undefined alpha values
 1200 	- fixed FP divide by zero error seen on VMS with xlockmore, others
 1201 	- fixed vertex/fragment program debug problem (bug 873011)
 1202 	- building on AIX with gcc works now
 1203 	- glDeleteProgramsARB failed for ARB fragment programs (bug 876160)
 1204 	- glDrawRangeElements tried to modify potentially read-only storage
 1205 	- updated files for building on Windows
 1206 
 1207 
 1208 6.0.1  April 2, 2004
 1209     New:
 1210 	- upgraded glext.h to version 22
 1211 	- new build targets (Dan Schikore)
 1212 	- new linux-x86-opteron build target (Heath Feather)
 1213     Bug fixes:
 1214 	- glBindProgramARB didn't update all necessary state
 1215 	- fixed build problems on OpenBSD
 1216 	- omit CVS directories from tarballs
 1217 	- glGetTexImage(GL_COLOR_INDEX) was broken
 1218 	- fixed an infinite loop in t&l module
 1219 	- silenced some valgrind warnings about using unitialized memory
 1220 	- fixed some compilation/link glitches on IRIX (Mike Stephens)
 1221 	- glBindProgram wasn't getting compiled into display lists
 1222 	- GLX_FBCONFIG_ID wasn't recognized in glXChooseFBConfig() (bug 888079)
 1223 	- two-sided lighting and vertex program didn't work (bug 887330)
 1224 	- stores to program parameter registers in vertex state programs
 1225 	  didn't work.
 1226 	- fixed glOrtho bug found with gcc 3.2.2 (RH9)
 1227 	- glXCreateWindow() wasn't fully implemented (bug 890894)
 1228 	- generic vertex attribute arrays didn't work in display lists
 1229 	- vertex buffer objects' default usage and access fields were wrong
 1230 	- glDrawArrays with start!=0 was broken
 1231 	- fragment program PK2H, UP2H, UP4B and UP4UB instructions were broken
 1232 	- linux-osmesa16-static config didn't work
 1233 	- fixed a few color index rendering problems (bug 910687)
 1234 	- glInterleavedArrays didn't respect GL_CLIENT_ACTIVE_TEXTURE
 1235 	- OSMesa RGB and BGR modes were broken
 1236 	- glProgramStringARB mistakenly required a null-terminated string
 1237 	- fragment program XPD instruction was incorrect
 1238 	- glGetMaterial() didn't work reliably
 1239 	- ARB_fragment_program KIL instruction was incorrect
 1240 
 1241 
 1242 6.1  August 18, 2004
 1243     New:
 1244 	- Revamped Makefile system
 1245 	- glXUseRotatedXFont() utility (see xdemos/xuserotfont.c)
 1246 	- internal driver interface changes related to texture object
 1247 	  allocation, vertex/fragment programs, BlendEquationSeparate, etc.
 1248 	- option to walk triangle edges with double-precision floats
 1249 	  (Justin Novosad of Discreet) (see config.h file)
 1250 	- support for AUX buffers in software GLX driver
 1251 	- updated glext.h to version 24 and glxext.h to version 6
 1252 	- new MESA_GLX_FORCE_ALPHA and MESA_GLX_DEPTH_BITS env vars
 1253 	- updated BeOS support (Philippe Houdoin)
 1254     Changes:
 1255 	- fragment fog interpolation is perspective corrected now
 1256 	- new glTexImage code, much cleaner, may be a bit faster
 1257     Bug fixes:
 1258 	- glArrayElement in display lists didn't handle generic vertex attribs
 1259 	- glFogCoord didn't always work properly
 1260 	- ARB_fragment_program fog options didn't work
 1261 	- frag prog TEX instruction no longer incorrectly divides s,t,r by q
 1262 	- ARB frag prog TEX and TEXP instructions now use LOD=0
 1263 	- glTexEnviv in display lists didn't work
 1264 	- glRasterPos didn't do texgen or apply texture matrix
 1265 	- GL_DOUBLE-valued vertex arrays were broken in some cases
 1266 	- fixed texture rectangle edge/border sampling bugs
 1267 	- sampling an incomplete texture in a fragment program would segfault
 1268 	- glTexImage was missing a few error checks
 1269 	- fixed some minor glGetTexParameter glitches
 1270 	- GL_INTENSITY was mistakenly accepted as a <format> to glTexImage
 1271 	- fragment program writes to RC/HC register were broken
 1272 	- fixed a few glitches in GL_HP_occlusion_test extension
 1273 	- glBeginQueryARB and glEndQueryARB didn't work inside display lists
 1274 	- vertex program state references were broken
 1275 	- fixed triangle color interpolation bug on AIX (Shane Blackett)
 1276 	- fixed a number of minor memory leaks (bug #1002030)
 1277 
 1278 
 1279 6.2  October 2, 2004
 1280     New:
 1281 	- enabled GL_ARB_texture_rectangle (same as GL_NV_texture_rectangle)
 1282 	- updated Doxygen support (Jose Fonseca)
 1283     Changes:
 1284 	- some GGI driver updates (Christoph Egger, bug 1025977)
 1285     Bug fixes:
 1286 	- Omit GL_ARB_texture_non_power_of_two from list of OpenGL 1.5 features
 1287 	- fixed a few compilation issues on IRIX
 1288 	- fixed a matrix classification bug (reported by Wes Bethel)
 1289 	- we weren't reseting the vertex/fragment program error state
 1290 	  before parsing (Dave Reveman)
 1291 	- adjust texcoords for sampling texture rectangles (Dave Reveman)
 1292 	- glGet*(GL_MAX_VERTEX_ATTRIBS_ARB) wasn't implemented
 1293 	- repeated calls to glDeleteTexture(t) could lead to a crash
 1294 	- fixed potential ref count bugs in VBOs and vertex/fragment programs
 1295 	- spriteblast demo didn't handle window size changes correctly
 1296 	- glTexSubImage didn't handle pixels=NULL correctly for PBOs
 1297 	- fixed color index mode glDrawPixels bug (Karl Schultz)
 1298 
 1299 
 1300 6.2.1  December 9, 2004
 1301     Bug fixes:
 1302 	- don't apply regular fog or color sum when using a fragment program
 1303 	- glProgramEnvParameter4fARB always generated an error on
 1304 	  GL_FRAGMENT_PROGRAM_ARB (fdo bug 1645)
 1305 	- glVertexAttrib3svNV and glVertexAttrib3svARB were broken
 1306 	- fixed width/height mix-up in glSeparableFilter2D()
 1307 	- fixed regression in glCopyPixels + convolution
 1308 	- glReadPixels from a clipped front color buffer didn't always work
 1309 	- glTexImage didn't accept GL_RED/GREEN/BLUE as the format
 1310 	- Attempting queries/accesses of VBO 0 weren't detected as errors
 1311 	- paletted textures failed if the palette had fewer than 256 entries
 1312     Changes:
 1313 	- fixed a bunch of compiler warnings found with gcc 3.4
 1314 	- bug reports should to go bugzilla.freedesktop.org
 1315 
 1316 
 1317 6.3  July 20, 2005
 1318     New:
 1319 	- GL_EXT_framebuffer_object extension
 1320 	- GL_ARB_draw_buffers extension
 1321 	- GL_ARB_pixel_buffer_object extension
 1322 	- GL_OES_read_format extension (Ian Romanick)
 1323 	- DirectFB driver (Claudio Ciccani)
 1324 	- x86_64 vertex transformation code (Mikko T.)
 1325 	- Updated GL/glext.h to version 29
 1326     Changes:
 1327 	- added -stereo option for glxgears demo (Jacek Rosik)
 1328 	- updated the PBuffer demo code in xdemos/ directory
 1329 	- glDeleteTextures/Programs/Buffers() now makes the object ID
 1330 	  available for immediate re-use
 1331 	- assorted 64-bit clean-ups fixes (x86_64 and Win64)
 1332 	- lots of internal changes for GL_EXT_framebuffer_object
 1333     Bug fixes:
 1334 	- some functions didn't support PBO functionality
 1335 	- glGetTexImage didn't convert color index images to RGBA as required
 1336 	- fragment program texcoords were sometimes wrong for points and lines
 1337 	- fixed problem with negative dot product in arbfplight, fplight demos
 1338 	- fixed bug in perspective correction of antialiased, textured lines
 1339 	- querying GL_POST_CONVOLUTION_ALPHA_BIAS_EXT returned wrong value
 1340 	- fixed a couple per-pixel fog bugs (Soju Matsumoto)
 1341 	- glGetBooleanv(GL_FRAGMENT_PROGRAM_BINDING_NV) was broken
 1342 	- fixed float parsing bug in ARB frag/vert programs (bug 2520)
 1343 	- XMesaGetDepthBuffer() returned incorrect value for bytesPerValue
 1344 	- GL_COLOR_MATERIAL with glColor3 didn't properly set diffuse alpha
 1345 	- glXChooseFBConfig() crashed if attribList pointer was NULL
 1346 	- program state.light[n].spot.direction.w was wrong value (bug 3083)
 1347 	- fragment program fog option required glEnable(GL_FOG) - wrong.
 1348 	- glColorTable() could produce a Mesa implementation error (bug 3135)
 1349 	- RasterPos could get corrupted by color index rendering path
 1350 	- Removed bad XTranslateCoordinates call when rendering to Pixmaps
 1351 	- glPopAttrib() didn't properly restore GL_TEXTURE_GEN enable state
 1352 	- fixed a few Darwin compilation problems
 1353 
 1354 
 1355 6.3.1
 1356     This was an intermediate release for X.org which wasn't otherwise released.
 1357 
 1358 
 1359 6.3.2  August 19, 2005
 1360     New:
 1361 	- The distribution now includes the DRI drivers and GLX code
 1362     Changes:
 1363 	- Made the DRI "new" driver interface standard, remove old code
 1364     Bug fixes:
 1365 	- GL_ARB_vertex/fragment_shader were mistakenly listed in the
 1366 	  extensions string
 1367 	- negative relative addressing in vertex programs was broken
 1368 	- update/fix SPARC assembly code for vertex transformation
 1369 	- fixed memory leak when freeing GLX drawables/renderbuffers
 1370 	- fixed display list memory leak
 1371 	- the GL_PIXEL_MAP_I_TO_I table is now floating point, not integer
 1372 	- wglGetProcAddress() didn't handle wgl-functions
 1373 	- fixed glxext.h cross-compile issue (Colin Harrison)
 1374 	- assorted DRI driver fixes
 1375 
 1376 
 1377 6.4  October 24, 2005
 1378     New:
 1379 	- Added a fast XOR line drawing function in Xlib driver
 1380 	- Added support for GL_ARB_texture_mirrored_repeat to savage
 1381 	  driver (supported only on Savage4 hardware).
 1382     Changes:
 1383 	- Mesa now packaged in three parts: Library, Demos and GLUT
 1384     Bug fixes:
 1385 	- GLX_X_RENDERABLE token wasn't accepted by glXChooseFBConfig
 1386 	- Some files were present multiple times in the 6.3.2 tarballs
 1387 	- r200_vtxtmp_x86.S file was missing from 6.3.2 tarball (bug 4207)
 1388 	- glxgears_fbconfig demo didn't work (bug 4237)
 1389 	- fixed bug when bilinear sampling 2d textures with borders
 1390 	- glXCreatePbuffer() could segfault instead of returning 0 (bug 4235)
 1391 	- fixed undefined frexp and rand in X.org libGLcore.a (bug 4242)
 1392 	- fixed a few problems with proxy color tables (bug 4270)
 1393 	- fixed precision problem in Z clearing (bug 4395)
 1394 	- glBitmap, glDraw/CopyPixels mistakenly generated selection hits
 1395 	- fixed potential segfault caused by reading pixels outside
 1396 	  of renderbuffer bounds
 1397 	- glGetTexLevelParameter didn't accept GL_TEXTURE_DEPTH_SIZE_ARB
 1398 	- fixed memory corruption bug involving software alpha buffers
 1399 	- glReadPixels clipped by window bounds was sometimes broken
 1400 	- glDraw/CopyPixels of stencil data ignored the stencil write mask
 1401 	- glReadPixels from a texture bound to a framebuffer object didn't work
 1402 	- glIsRender/FramebufferEXT weren't totally correct
 1403 	- fixed a number of point size attenuation/fade bugs
 1404 	- fixed glFogCoord bug 4729
 1405 	- GLX encoding for transpose matrix functions was broken
 1406 	- fixed broken fragment program KIL and SWZ instructions
 1407 	- fragment programs that wrote result.depth.z didn't work
 1408 
 1409 
 1410 6.4.1  November 30, 2005
 1411     Bug fixes:
 1412 	- redefining a vertex program string didn't take effect in TNL module
 1413 	- fixed occasional segfault upon vertex/fragment parsing error
 1414 	- vertex program LIT instruction didn't handle 0^0=1 correctly
 1415 	- fragment program fog option didn't work with glDrawPixels, glBitmap
 1416 	- USE_MGL_NAMESPACE didn't work for x86-64
 1417 	- OSMesa demos were missing from previous release tarballs
 1418 	- fixed problem with float->ushort conversion in glClear (bug 4992)
 1419 	- popping of GL_EYE_PLANE texgen state was broken (bug 4996)
 1420 	- popping of GL_SPOT_DIRECTION light state was broken (bug 5005)
 1421 	- fixed occasional triangle color interpolation problem on VMS
 1422 	- work around invalid free() call (bug 5131)
 1423 	- fixed BSD X server compilation problem by including stdint.h
 1424 
 1425 
 1426 6.4.2  February 2, 2006
 1427     New:
 1428 	- added OSMesaColorClamp() function/feature
 1429 	- added wglGetExtensionStringARB() function
 1430     Bug fixes:
 1431 	- fixed some problems when building on Windows
 1432 	- GLw header files weren't installed by installmesa script (bug 5396)
 1433 	- GL/glfbdev.h file was missing from tarballs
 1434 	- fixed TNL initialization bug which could lead to crash (bug 5791)
 1435 
 1436 
 1437 6.5  March 31, 2006
 1438     New:
 1439 	- OpenGL Shading Language support through GL_ARB_shader_objects,
 1440 	  GL_ARB_shading_language_100, GL_ARB_vertex_shader and
 1441 	  GL_ARB_fragment_shader (done by Michal Krol)
 1442 	- GL_EXT_packed_depth_stencil extension
 1443 	- GL_EXT_timer_query extension
 1444 	- GL_EXT_framebuffer_blit extension
 1445 	- GL_ARB_half_float_pixel
 1446 	- reflect demo improved to support multiple windows
 1447 	- singlebuffer demo (shows no/little-flicker single-buffered rendering)
 1448 	- r200: enable GL_ARB_texture_env_crossbar, separate the texture
 1449 	  sampling unit bits from the texture env combine enable bits
 1450 	- r200: add support for GL_ATI_fragment_shader
 1451 	- added fast XOR-mode line drawing optimization
 1452 	- radeon: add support for all 3 tmus, GL_ARB_texture_cube_map
 1453 	  and GL_EXT_fog_coord
 1454 	- MESA_GLX_ALPHA_BITS env var for xlib driver
 1455 	- many DRI driver updates (including screen rotation support
 1456 	  for the Intel DRI driver)
 1457     Changes:
 1458 	- removed GL_HP_occlusion_test (use GL_ARB_occlusion_query instead)
 1459 	- removed GL_SGIX/SGIS_pixel_texture extensions
 1460     Bug fixes:
 1461 	- fixed glxcontextmodes.c datatype problem (bug 5835)
 1462 	- fixed aix-gcc build/install bugs (bug 5874)
 1463 	- fixed some bugs in texture env program generation
 1464 	- glXCopyContext() didn't handle texture object bindings properly
 1465 	- glXCopyContext() didn't copy all lighting state
 1466 	- fixed FreeBSD config (Pedro Giffuni)
 1467 	- fixed some minor framebuffer object bugs
 1468 	- replaced dprintf() with _glu_printf() in GLU (bug 6244)
 1469 	- fixed a number of thread safety bugs/regressions
 1470 	- fixed a number of GLU tesselator bugs (John Shell, bug 6339)
 1471 	- paletted texturing was broken w/ floating point palettes (K. Schultz)
 1472 	- lots of assorted framebuffer object bug fixes
 1473 
 1474 6.5.1  August 31, 2006
 1475     New:
 1476 	- Intel i965 DRI driver
 1477 	- GL_APPLE_vertex_array_object extension (Ian Romanick)
 1478 	- GL_EXT_texture_sRGB extension
 1479 	- GL_EXT_gpu_program_parameters (Ian Romanick)
 1480 	- "engine" demo
 1481 	- updated fbdev driver and GLUT for fbdev (Sean D'Epagnier)
 1482 	- many updates to the DRI drivers
 1483     Changes:
 1484 	- The glVertexAttribARB functions no longer alias the conventional
 1485 	  vertex attributes.
 1486 	- glxinfo program prints more info with -l option
 1487 	- GL_FRAGMENT_PROGRAM_NV and GL_FRAGMENT_PROGRAM_ARB are now
 1488 	  compatible, in terms of glBindProgramARB()
 1489     Bug fixes:
 1490 	- fixed broken texture border handling for depth textures (bug 6498)
 1491 	- removed the test for duplicated framebuffer attachments, per
 1492 	  version 117 of the GL_EXT_framebuffer_object specification
 1493 	- fixed a few render-to-texture bugs, including render to depth texture
 1494 	- clipping of lines against user-defined clip planes was broken (6512)
 1495 	- assembly language dispatch for SPARC was broken (bug 6484)
 1496 	- assorted compilation fixes on various Unix platforms (Dan Schikore)
 1497 	- glPopAttrib could restore an invalid value for GL_DRAW_BUFFER
 1498 	- assorted minor fixes for 16 and 32 bit/channel modes
 1499 	- fixed assorted bugs in texture compression paths
 1500 	- fixed indirect rendering vertex array crashes (bug 6863)
 1501 	- glDrawPixels GL_INDEX_OFFSET didn't always work
 1502 	- fixed convolution memory leak (bug 7077)
 1503 	- rectangular depth textures didn't work
 1504 	- invalid mode to glBegin didn't generate an error (bug 7142)
 1505 	- 'normalized' parameter to glVertexAttribPointerARB didn't work
 1506 	- disable bogus GLX_SGI_video_sync extension in xlib driver
 1507 	- fixed R128 driver locking bug (Martijn van Oosterhout)
 1508 	- using evaluators with vertex programs caused crashes (bug 7564)
 1509 	- fragment.position wasn't set correctly for point/line primitives
 1510 	- fixed parser bug for scalar sources for GL_NV_fragment_program
 1511 	- max fragment program length was incorrectly 128, now 1024
 1512 	- writes to result.depth in fragment programs weren't clamped to [0,1]
 1513 	- fixed potential dangling pointer bug in glBindProgram()
 1514 	- fixed some memory leaks (and potential crashes) in Xlib driver