docs/VERSIONS

   1 $Id: VERSIONS,v 1.47 2000/12/13 00:48:02 brianp Exp $
   2
   3
   4 Mesa Version History
   5 ====================
   6
   7 1.0 beta   February 1995
   8     Initial release
   9
  10 1.1 beta   March 4, 1995
  11     Changes:
  12         faster point and line drawing (2x faster)
  13         more systems supported, better Makefiles
  14         Renamed lib*.a files to avoid collisions
  15         many small bug fixes
  16     New:
  17         pseudo-GLX functions added
  18         new implementation of evaluators (eval2.c)
  19         GLUT support
  20
  21 1.1.1 beta   March 7, 1995
  22     Changes:
  23         Reverted from eval2.c to eval.c due to FPE on Linux
  24         more speed improvements
  25         more Makefile changes
  26
  27 1.1.2 beta   March 14, 1995
  28     New:
  29         implementation of SGI's blending extensions
  30         glXUseXFont implemented
  31         added MESA_DEBUG environment variable support
  32     Changes:
  33         Using eval2.c again
  34         more FPE-prevention checks (0-length normals are OK)
  35         a few small bug fixes
  36         much faster pixel logic ops!
  37         faster transformation arithmetic
  38
  39 1.1.3 beta   March 31, 1995
  40     New:
  41         gluScaleImage() and gluBuild2DMipMaps() implemented
  42         Mesa widgets for Xt/Motif
  43         blendEXT demos
  44         added environment variables for selecting visuals
  45     Changes:
  46         almost all GLUT demos work correctly now
  47         faster X device driver functions
  48         more bug fixes
  49
  50 1.1.4 beta   April 20, 1995
  51     Bug fixes:
  52         - missing #define SEEK_SET in src-tk/image.c
  53         - compile glShadeModel into display lists
  54         - fixed pow() domain error in src/light.c
  55         - fixed "flickering bitmaps" in double buffer mode
  56         - fixed tk.h and aux.h for C++
  57         - state of LIGHT_MODEL_LOCAL_VIEWER was inverted
  58     New features:
  59         - MUCH, MUCH nicer dithering in 8-bit RGB mode
  60         - updated widgets and widget demos
  61         - Implemented GLXPixmap functions
  62         - Added GLU 1.1 and GLX 1.1 functions
  63         - Changed the X/Mesa interface API, more versatile
  64         - Implemented gluPartialDisk()
  65
  66 1.2   May 22, 1995
  67     Bug fixes:
  68         - IRIX 4.x makefile problem
  69         - modified tk to share root colormap as needed
  70         - gluLookAt normalization problem
  71         - suppress Expose, NoExpose events in swapbuffers
  72         - glBitmap() and glDrawPixels() clipping
  73     New features:
  74         - GL_BLEND, GL_MODULATE, GL_DECAL, and GL_REPLACE_EXT texture
  75               modes implemented
  76         - texture maps stored more efficiently
  77         - texture maps can be compiled into display lists
  78         - Bogdan Sikorski's GLU polygon tesselation code
  79         - Linas Vepstas's sweep and extrusion library
  80         - glXCreateContext()'s shareList parameter works as it's supposed to.
  81               XMesaCreateContext() updated to accept a shareList parameter too.
  82         - Mesa can be compiled with real OpenGL .h files
  83         - MESA_BACK_BUFFER environment variable
  84         - better GLX error checking
  85
  86 1.2.1   June 22, 1995
  87     Bug fixes:
  88         - X/Mesa double buffer window resize crash
  89         - widgets now pass PointerMotion events
  90         - X/Mesa incorrect default clear color and drawing color
  91         - more robust X MIT-SHM support in X/Mesa
  92         - glTexImage( format=GL_LUMINANCE ) didn't work
  93         - GL_LINE mode polygons with line width > 1.0 could cause a crash
  94         - numerous feedback bugs
  95         - glReadPixels() from depth buffer was wrong
  96         - error prone depth and stencil buffer allocation
  97     New features:
  98         - Preliminary Microsoft Windows driver
  99         - Implemented a number of missing functions: glEvalCoord[12][df]v(),
 100             glGet...(), etc.
 101         - Added a few missing symbols to gl.h and glu.h
 102         - Faster rendering of smooth-shaded, RGBA, depth-buffered polygons.
 103         - Faster rendering of lines when width=2.0
 104         - Stencil-related functions now work in display lists
 105     Changes:
 106         - renamed aux.h as glaux.h (MS-DOS names can't start with aux)
 107         - most filenames are in 8.3 format to accomodate MS-DOS
 108         - use GLubytes to store arrays of colors instead of GLints
 109
 110 1.2.2   August 2, 1995
 111     New features:
 112         - texture mapped points and lines
 113         - NURBS! (but not 100% complete)
 114         - viewports may safely extend beyond window boundaries
 115         - MESA_PRIVATE_CMAP environment variable
 116         - Grayscale X display support
 117         - two new demos:  demos/gears.c and demos/shadow.c
 118         - MachTen for Macintosh configuration
 119     Bug fixes:
 120         - glGet*(GL_DEPTH_BITS) returned bytes, not bits
 121         - point, line, and bitmap rasterization suffered from roundoff errors
 122         - fixed a division by zero error in line clippping
 123         - occasional wrong default background color really fixed!
 124         - glDepthFunc(GL_ALWAYS) with glDepthMask(GL_FALSE) didn't work
 125         - gluBuild2DMipmaps malloc problem fixed
 126         - view volume clipping of smooth shaded lines resulted in bad colors
 127     Changes:
 128         - new visual selection method in glXChooseVisual()
 129         - improved GLU quadric functions
 130         - call XSync for glFinish and XFlush for glFlush
 131         - glVertex() calls now use a function pointer to avoid conditionals
 132         - removed contrib directory from Mesa tar file (available on ftp site)
 133         - AIX shared library support
 134         - Removed GLUenum type as it's not in OpenGL
 135
 136 1.2.3   September 26, 1995
 137     New features:
 138         - Mesa header files now equivalent to SGI OpenGL headers
 139         - Support for HP's Color Recovery dithering displays
 140         - Faster vertex transformation
 141         - Faster raster operations into X windows under certain conditions
 142         - New configurations:  HP w/ shared libs, Ultrix w/ GCC, Data General
 143         - 4-bit visuals now supported
 144     Bug fixes:
 145         - glScissor bug fixed
 146         - round-off errors in clipping lines against clip planes fixed
 147         - byte swapping between hosts and display servers implemented
 148         - glGetError() can be called without a current rendering context
 149         - problem with accidentally culled polygons is fixed
 150         - fixed some widget compilation problems
 151
 152 1.2.4   November 17, 1995
 153     New features:
 154         - More speed improvements (lighting, fogging, polygon drawing)
 155         - Window system and OS-independent off-screen rendering
 156         - Preliminary Fortran bindings
 157         - glPolygonOffsetEXT implemented
 158         - glColorMask and glIndexMask now fully implemented
 159         - glPixelZoom implemented
 160         - display lists fully implemented
 161         - gamma correction
 162         - dithering in 8-bit TrueColor/DirectColor visuals
 163     Changes:
 164         - Improved device driver interface
 165         - tk.h renamed to gltk.h to avoid conflicts with Tcl's Tk
 166         - Dithering support moved from core into device driver
 167     Bug fixes:
 168         - glEnable/Disable( GL_LIGHTING ) didn't always take effect
 169         - glReadPixels byte swapping was broken
 170         - glMaterial with pname==GL_AMBIENT_AND_DIFFUSE was broken
 171         - duplicate glColor4b() prototype in GL/gl.h removed
 172         - stripes in wave -ci demo fixed
 173         - GL_LINEAR_MIPMAP_NEAREST had wrong value
 174         - bugs in HP Color Recovery support fixed
 175         - fixed bug when blending lines, points, bitmaps outside of window
 176
 177 1.2.5   November 30, 1995
 178     New Features:
 179         - updated MS Windows driver
 180         - new implementation of StaticGray/GrayScale visual support
 181     Bug fixes:
 182         - pixelzooming with gamma correction or blending didn't work
 183         - HP color recovery visual wasn't being picked by glXChooseVisual
 184         - glClear didn't always observe glColorMask changes
 185         - olympic and offset demos didn't compile on some Suns
 186         - texcoord clamping wasn't correct
 187         - a polygon optimization introduced an occasional sampling problem
 188
 189 1.2.6   January 26, 1996
 190     New Features:
 191         - faster line and polygon rendering under certain conditions.  See
 192           Performance Tips 9 and 10 in README
 193         - profiling
 194         - lighting is a bit faster
 195         - better perspective corrected texture mapping
 196         - Amiga AmiWin (X11) support
 197         - preliminary Linux SVGA driver
 198     Changes:
 199         - now using a 16-bit depth buffer, faster, smaller
 200         - GL_NORMALIZE is disabled by default
 201     Bug fixes:
 202         - projective texture mapping
 203         - fixed a memory leak in the context destroy function
 204         - GL_POLYGON with less than 3 vertices caused a crash
 205         - glGet*() returned wrong result for GL_INDEX_MODE
 206         - reading pixels from an unmapped X window caused a BadMatch error
 207
 208 1.2.7   March 5, 1996
 209     New:
 210         - faster lighting
 211         - faster 16-bit TrueColor rendering on Linux
 212         - faster 32-bit TrueColor rendering on Linux, HP, IBM
 213         - non-depth-buffered XImage polygons are faster
 214         - vertex array extension
 215         - software alpha planes
 216         - updated Macintosh driver
 217         - new NeXT driver
 218         - GLU quadric functions generate texture coordinates
 219         - reflect.c demo - reflective, textured surface demo
 220     Changes:
 221         - gamma correction code moved into the X driver for better performance
 222     Bug fixes:
 223         - multiple glClipPlane()'s didn't work reliably
 224         - glPolygonMode() didn't always work
 225         - glCullFace( GL_FRONT_AND_BACK ) didn't work
 226         - texture mapping with gamma correction was buggy
 227         - floating point exceptions in texture coordinate interpolation
 228         - XImage byte swapping didn't always work
 229         - polygon edge flags weren't always used correctly
 230
 231 1.2.8   May 22, 1996
 232     New:
 233         - overlay planes on X servers with the SERVER_OVERLAY_VISUALS property
 234         - better monochrome output
 235         - more IRIX 6.x configurations
 236         - more robust RGB mode color allocation
 237         - added MESA_XSYNC environment variable
 238         - GLX_MESA_pixmap_colormap and GLX_EXT_visual_info extensions
 239         - GL_MESA_window_pos extension
 240         - faster glReadPixels/glDrawPixels for GL_DEPTH and GL_UNSIGNED_SHORT
 241           and GL_UNSIGNED_INT
 242         - driver for prototype Cirrus Mondello 3-D board
 243         - updated AmigaDOS driver
 244         - a few small speed optimizations in polygon rendering
 245     Changes:
 246         - internal device driver interface modified to simplify device
 247           driver implementations and to support hardware Z buffers
 248         - several changes to the X/Mesa interface (xmesa.h)
 249     Bug fixes:
 250         - fixed pow(0,0) domain error triggered on some systems
 251         - glStencilClear() in a display list caused an infinite loop
 252         - glRasterPos*() was sometimes off by +/-0.5 in X and Y
 253         - color masking and blending were performed in wrong order
 254         - auxSolidCylinder() sometimes drew a wire-frame cylinder
 255         - fixed file writing bug in osdemo.c
 256         - pixel mapping didn't always work
 257         - the GL_GEQUAL stencil func didn't work
 258         - the GL_INVERT stencil op didn't work
 259         - the stencil write mask didn't work
 260         - glPush/PopAttrib() didn't do enough error checking
 261         - glIsList() didn't always work correctly
 262
 263 2.0  October 10, 1996
 264     New:
 265         - Implements OpenGL 1.1 API functions
 266         - all texture filtering modes supported (mipmapping)
 267         - faster texture mapping, see Performance Tip 11 in README
 268         - antialiased RGB points
 269         - X support for line and polygon stippling
 270         - glDrawBuffer( GL_FRONT_AND_BACK ) works
 271         - util/ directory of useful stuff
 272         - demos/texobj demo of texture objects
 273     Changes:
 274         - major internal changes for thread-safeness
 275         - new device driver interface
 276         - MESA_ALPHA env variable removed
 277         - triangle rasterizer replaces polygon rasterizer
 278     Bug fixes:
 279         - glPopAttrib() bug
 280         - glDrawBuffer(GL_NONE) works now
 281
 282 2.1  December 14, 1996
 283     New:
 284         - VMS support
 285         - MS-DOS driver
 286         - OpenStep support
 287         - updated, combined Windows 95/NT driver
 288         - implemented glGetLighti() and glGetTexGen*()
 289         - GLX does garbage collection of ancillary buffers
 290     Bug fixes:
 291         - removed unused _EXT constants from gl.h
 292         - fixed polygon offset bugs
 293         - Z coordinates of clipped lines were incorrect
 294         - glEdgeFlag() in display lists didn't always work
 295         - glLight*() in display lists didn't work
 296         - fixed X line stipple bugs (Michael Pichler)
 297         - glXUseXfonts XFreeFont/XFreeFontInfo bug fixed
 298         - fixed a feedback bug
 299         - glTexGen*() now transforms GL_EYE_PLANE by inverse modelview matrix
 300         - polygons were sometimes culled instead of clipped
 301         - triangle rasterizer suffered from float/int overflow exceptions
 302         - fixed FP underflow exception in lighting (specular exponent)
 303         - glEnable/glDisable of GL_EXT_vertex_array enums didn't work
 304         - fixed free(NULL) in GLU tesselator code
 305         - using 24-bit color on some X servers resulted in garbage rendering
 306         - 32-bit per pixel mode for XFree86 now works
 307         - glRotate(a,0,0,0) gave unpredictable results
 308         - GL_LINE_STRIP with > 480 vertices had occasional clipping problems
 309         - 8-bit TrueColor GLXPixmap rendering incorrectly required a colormap
 310         - glMaterial() wasn't ignored when GL_COLOR_MATERIAL was enabled
 311         - glEnable(GL_COLOR_MATERIAL) followed by glColor() didn't work right
 312         - accumulation buffer was limited to positive values
 313         - projective textures didn't work
 314         - selection buffer overflows weren't handled correctly
 315     Changes:
 316         - restored the GL_EXT_polygon_offset extension
 317         - slightly faster RGB dithering
 318         - the SVGA driver works again
 319         - Amiga driver now distributed separately
 320         - NeXT driver updated for Mesa 2.x
 321
 322 2.2  March 14, 1997
 323     New:
 324         - better color selection when dithering
 325         - added GL_EXT_texture_object extension
 326         - updated MS-DOS driver for DJGPP
 327         - added openbsd make configuration
 328         - faster dithered flat-shaded triangles
 329         - various compilation problems with Motif widgets fixed
 330         - gl.h, glx.h and glu.h name mangling option
 331         - BeOS driver
 332         - 3D texture mapping extension
 333         - GL_MESA_resize_buffers extension
 334         - morph3d, stex3d and spectex demos
 335         - 3Dfx support
 336     Bug fixes:
 337         - glColorMaterial should finally work right in all respects
 338         - linear interpolation of mipmap levels was incorrectly weighted
 339         - readpix.c didn't compile on Macintosh
 340         - GL_INVERT and related logic ops didn't work right
 341         - glTexImage[12]D() didn't check its parameters consistantly
 342         - fixed a memory leak in glTexImage[12]D()
 343         - kludged around a SunOS 5.x/GCC compiler bug in the feedback code
 344         - glReadPixels aborted instead of normally catching some errors
 345         - a few 1.1 constants were missing or misnamed in gl.h
 346         - glBegin(p); glBegin(q); didn't generate an error
 347         - fixed a memory leak in GLX code
 348         - clipping of concave polygons could cause a core dump
 349         - 1-component alpha texture maps didn't work
 350         - fixed a GLU polygon tesselator bug
 351         - polygons with colinear vertices were sometimes culled
 352         - feedback triangle colors were wrong when using smooth shading
 353         - textures with borders didn't work correctly
 354         - colors returned in feedback mode were wrong when using lighting
 355         - spotlights didn't effect ambient lighting correctly
 356         - gluPartialDisk() had a few bugs
 357     Changes:
 358         - device driver interface expanded to support texture mapping
 359         - faster matrix inversion subroutine
 360         - commented out #include "wmesa_extend.h" from src/wmesa.c
 361         - fixed many compiler warnings in the demo programs
 362
 363 2.3  June 30, 1997
 364     New:
 365         - Mesa distribution divided into two pieces:  library code and demos
 366         - faster vertex transformation, clip testing, lighting
 367         - faster line drawing
 368         - TrueColor visuals how have dithering (for depths < 24 bits)
 369         - added MESA_NO_DITHER environment variable
 370         - new device driver function: NearFar(), RenderVB(), RasterSetup()
 371         - added LynxOS configuration
 372         - added cygnus Win32 configuration
 373         - added texcyl.c GLUT demo
 374         - added XMesaDitherColor() to X/Mesa interface
 375         - new NURBS code from Bogdan Sikorski
 376         - added demos/shape.c (non-rectangular X window!)
 377     Bug fixes:
 378         - glEnable/DisableClientState() were missing from GL/gl.h
 379         - GL_SPHERE_MAP texcoord generation didn't work correctly
 380         - glXGetConfig() returned wrong number of depth, stencil, accum bits
 381         - glDrawPixels feedback/selection didn't examine RasterPos valid bit
 382         - black and white were reversed on some monochrome displays
 383         - fixed potential image memory leak (wasn't setting reference counter)
 384         - glDrawPixels sometimes didn't recognize some GL state changes
 385         - gluProject/UnProject() didn't check for divide by zero
 386         - stex3d demo called random() and srandom(), not portable
 387         - fixed memory leaks in context.c and drawpix.c
 388         - fixed NULL dereferencing problem in gl_update_texture_state()
 389         - glReadPixels between glBegin/glEnd didn't generate an error.
 390         - fixed memory leak in polygon tesselator (Randy Frank)
 391         - fixed seg fault bug drawing flat-shaded, depth-tested lines
 392         - clipped GL_TRIANGLE_STRIPs sometimes had wrong color when flat-shaded
 393         - glBindTexture sometimes didn't work
 394         - fixed a bug deep in glXReleaseBuffersMESA()
 395         - fog was mistakenly applied to alpha
 396         - glPopMatrix didn't set "dirty matrix" flag
 397         - glPolygonStipple pattern was sometimes wrong
 398         - glClear wasn't disabled during feedback and selection
 399         - fixed memory leak in glTexSubImage[123]D
 400     Changes:
 401         - many library source files reorganized
 402         - faster X color allocation, colors also freed when finished with them
 403         - new texture sampling function pointer in texture objects
 404         - incorporated 3Dfx VooDoo driver v0.16 into main source tree
 405         - many 3Dfx driver updates
 406         - cygnus Makefiles now included
 407         - updated DOS driver
 408         - made a few changes to dosmesa.c and wmesa.c (VB->Unclipped)
 409         - internally, colors now stored in GLubytes, not GLfixed
 410         - optimized changing of GL_SHININESS parameter
 411
 412 2.4  September 18, 1997
 413     New:
 414         - updated 3Dfx Glide driver
 415         - hacks for 3Dfx rendering into an X window or fullscreen
 416         - added depth buffer access functions to X/Mesa and OS/Mesa interfaces
 417     Bug fixes:
 418         - pixel buffer could overflow with long, wide lines
 419         - fixed FP underflow problems in lighting
 420         - glTexSubImage1D() had an unitialized variable
 421         - incomplete texture objects could cause a segfault
 422         - glDrawPixels with GL_COMPILE_AND_EXECUTE caused infinite loop
 423         - flat-shaded quads in a strip were miscolored if clipped
 424         - mipmapped triangle lod computation now works correctly
 425         - fixed a few under/overflow bugs in triangle rasterizer
 426         - glArrayElement() assigned bad normal if normal array disabled
 427         - changed argument to glXReleaseBuffersMESA()
 428         - fixed small triangle underflow bugs in tritemp.h (hopefully)
 429         - glBindTexture(target, 0) caused a crash
 430         - glTexImage[123]D() with NULL image pointer caused crash
 431         - glPixelStore parameters are now ignored during display list execution
 432         - fixed a two-sided lighting w/ clipping bug (black vertices)
 433         - textures with width!=height were sometimes mis-rendered
 434         - "weird" projection matrices could cause div by 0, other fp errors
 435     Changes:
 436         - changed precompiled header symbol from PCH to PC_HEADER
 437         - split api.c into api1.c and api2.c
 438         - added hash.c source file (but not used yet)
 439         - a few Sun and HP configuration file changes
 440         - MESA_GLX_FX env var replaces MESA_FX_WINDOW and MESA_FX_FULLSCREEN
 441         - fixed a few cygnus build problems (src/Makefile.cygnus, src/wmesa.c)
 442
 443 2.5  November 20, 1997
 444     New:
 445         - updated 3Dfx driver (v20) for GLQuake
 446         - added GL_EXT_paletted_texture extension
 447         - added GL_EXT_shared_texture_palette extension
 448         - added GL_EXT_point_parameters extension
 449         - now including Mark Kilgard's GLUT library v3.6
 450         - new GLUT-based demos in gdemos/
 451         - added a few more Unix config targets
 452         - added Intel X86 assembly language vertex transformation code
 453         - 3Dfx/Glide driver for Mesa now recognizes SST_SCREENREFRESH env var
 454         - Windows 95 S3 Virge driver
 455     Bug fixes:
 456         - glCopyTexImage?D would crash due to uninitialized variable
 457         - glColor w/ glColorMaterial in a display list caused a bug
 458         - fixed several glDrawPixels() and ReadPixels() bugs in 3Dfx driver
 459         - glVertex4*() vertices weren't always projected correctly
 460         - trying to use mipmapped textured points or lines caused crash
 461         - glColor[34][fd]() values now clamped to [0,1] before int conversion
 462     Changes:
 463         - new device driver functions for texture mapping
 464         - hash tables used for display list and texture object lookup
 465         - fixed GLX visual handling code to avoid saving redundant visuals
 466         - 3Dfx Glide libraries automatically linked to libMesaGL.so
 467         - dropped the Cirrus Logic Mondello code since it's obsolete
 468         - updated Cygnus Makefiles (Stephane Rehel)
 469         - updated Windows MSVC++ Makefiles (Oleg Letsinsky)
 470         - procedure for making library files has changed: scripts now take
 471           a major and minor version arguments.  Make-config changed a lot.
 472         - new implementation of glTexSubImage2D()
 473         - updated widgets-mesa directory to create libMesaGLwM.a (Motif widget)
 474         - separate linux-glide and linux-386-glide configurations
 475
 476 2.6  February 12, 1998
 477     New:
 478         - Windows WGL functions
 479         - updated VMS, DOS, Windows, Cygnus, BeOS, Amiga compilation support
 480         - v0.22 of 3Dfx Glide driver
 481         - more X86 assembly language optimizations
 482         - faster blending for some modes
 483         - XMesaSetFXmode() to switch between 3Dfx window and full-screen mode
 484         - added preliminary thread support
 485         - added GLX_MESA_copy_sub_buffer extension
 486         - some clipping optimizations
 487     Bug fixes:
 488         - fixed shading/material bug when drawing long primitive strips
 489         - fixed clipping problem in long primitive strips
 490         - fixed clipping bug when using 3Dfx driver
 491         - fixed a problem when trying to use X fonts w/ 3Dfx driver
 492         - fixed a texture filter bug in 3Dfx/Glide driver
 493         - fixed bug in 3Dfx/Glide driver involving depth mask & clearing
 494         - glLoadMatrix to set projection matrix confused the 3Dfx driver
 495         - non-identity texture matrices didn't work with linux-386 configs
 496         - glGenTextures() didn't reserve the returned texture IDs
 497         - NULL proxy image sent to glTexImageXD() caused crash
 498         - added texture state validation optimization (Henk Kok)
 499         - fixed colormap reuse problem when using both RGB and CI windows
 500         - 32bpp True/DirectColor X visuals weren't recognized
 501         - fixed potential problem in evaluators memory allocation
 502         - fixed assorted demo compilation bugs
 503     Changes:
 504         - replaced old Mesa/windows/ directory with Mesa/WIN32/ directory
 505         - converted a few old glaux/gltk demos to GLUT
 506         - renamed directories:  demos -> xdemos,  gdemos -> demos
 507
 508
 509 3.0  September 17, 1998
 510     New:
 511         - OpenGL 1.2 API
 512         - GL_EXT_abgr pixel format extension
 513         - GL_SGIS_texture_edge_clamp extension
 514         - GL_SGIS_multitexture extension (to be replaced by GL_ARB_multitex)
 515         - GL_EXT_multitexture extension (to be replaced by GL_ARB_multitex)
 516         - GL_EXT_rescale_normal extension and renormal.c demo
 517         - GLX_SGI_video_sync extension (a no-op)
 518         - antialiased lines
 519         - glGetTexImage() now implemented
 520         - glDraw/Copy/ReadPixels() optimizations
 521         - optimized textured triangle code (Marten Stromberg)
 522         - more optimization of dithered TrueColor triangles in X driver
 523         - Linux GGI driver
 524         - updated MGL driver
 525     Bug fixes:
 526         - lots of assorted compilation fixes
 527         - glInitNames didn't write initial hit record
 528         - glBitmap didn't always check for invalid raster position
 529         - switching between GLX and OSMesa contexts caused a crash
 530         - fixed uninitialized variable in Mesa widget code
 531         - fixed typo in texture code which caused book/texgen to crash
 532         - fixed texture sampling bug when filter=GL_LINEAR and wrap=GL_CLAMP
 533         - gluDisk() in POINT or LINE mode sometimes failed
 534         - fixed texture + fog bug
 535         - GL_COMPILE_AND_EXECUTE mode didn't work reliably
 536         - glMultMatrix in projection matrix mode w/ 3Dfx driver could fail
 537         - glDrawPixels(color index pixels) weren't converted to RGBA
 538         - fixed possible getenv() buffer overflow security bug
 539         - glBitmap in feedback mode was offset by xOrig, yOrig params
 540         - device driver's DrawPixels hook was never used
 541         - glDrawPixels with zoomY!=1 and top/bottom clipping didn't work
 542         - glDrawPixels optimized for GL_LUMINANCE, GL_LUMINANCE_ALPHA, GLubyte
 543         - fixed MakeCurrent bug in GLwRedrawObjects() in MesaWorkstation.c
 544         - glCopyTexSubImage2D() didn't work with 3Dfx driver
 545         - lines with width = 2 could cause crash
 546         - glClear with scissor rect sometimes cleared whole buffer
 547         - glTexSubImage2D( .. GL_COLOR_INDEX .. ) didn't work
 548         - glTexImageXD( .. GL_ABGR_EXT .. ) didn't work
 549         - computation of inverse modelview matrix sometimes failed
 550         - fixed GL_CLAMP mode texture sampling bug
 551         - textured line interpolation was somewhat broken
 552         - textured triangle interpolation was also somewhat broken
 553         - glGet(MODELVIEW/PROJECTION/TEXTURE_MATRIX_STACK_DEPTH) off by one
 554         - evaluator state wasn't fully initialized
 555         - texture coordinate clipping was buggy
 556         - evaluator surfaces could be mis-colored
 557         - glAccum(GL_RETURN, s) didn't obey glColorMask() settings
 558         - zero area polygons shouldn't be culled if polygon mode is point/line
 559         - clipped width and height of glReadPixels was sometimes off by one
 560         - blending with alpha = 0 or 1.0 wasn't always exact
 561         - reading of pixels from clipped region was buggy
 562         - minor tweaking of X visual management in GLX emulator
 563         - glPolygonStipple now obeys pixel unpacking parameters
 564         - glGetPolygonStipple now obeys pixel packing parameters
 565         - interleaved vertex array texture coordinates were broken
 566         - query of proxy texture internal format was broken
 567         - alpha channel wasn't reliably cleared
 568         - fixed divide by zero error in gluScaleImage if dest size = 1 x 1
 569     Conformance bug fixes:
 570         - GL_SELECTION_BUFFER_POINTER and GL_SELECTION_BUFFER_SIZE were missing
 571         - GL_TEXTURE_INTERNAL_FORMAT was missing
 572         - glGet*(GL_POLYGON_STIPPLE) was broken
 573         - glPush/PopAttrib() didn't save/restore all texture state
 574         - glBitmap in feedback mode didn't work
 575         - feedback of texture coords didn't always work
 576         - glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLbyte was broke
 577         - glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLubyte was broke
 578         - glDrawPixels w/ format=GL_STENCIL_INDEX, type=GL_BITMAP was broke
 579     Changes:
 580         - upgraded GLUT to version 3.7
 581         - only GL and GLU library code included in MesaLib.tar.gz
 582         - GLUT and all demos now in MesaDemos.tar.gz
 583         - glaux and gltk libraries removed
 584         - IRIX -n32 and -64 libs go in lib32/ and lib64/ directories
 585
 586
 587 3.1 beta 1  November 19, 1998
 588     New:
 589         - GL_EXT_stencil_wrap extension
 590         - GL_INGR_blend_func_separate extension
 591         - GL_ARB_multitexture extension
 592         - GL_NV_texgen_reflection extension
 593         - newly optimized vertex transformation code
 594         - updated GLUT 3.7 code
 595         - better precision when using 32-bit Z buffer
 596         - Allegro DJGPP driver
 597     Bug fixes:
 598         - glCopyPixels between front/back buffers didn't copy alpha correctly
 599         - fixed out-of-bounds memory access in optimized 2-D texture code
 600         - glPixelStorei didn't accept GL_PACK/UNPACK_IMAGE_HEIGHT parameter
 601         - glGet*() didn't accept GL_MAX_3D_TEXTURE_SIZE parameter
 602         - clipping of texture coordinates sometimes had bad R,Q values
 603         - GL_CLAMP_TO_EDGE texture sampling was off by 0.5 texels
 604         - glEdgeFlagPointer() now takes a GLvoid * instead of GLboolean *
 605         - texture was sometimes applied twice with 3Dfx driver
 606         - glPush/PopAttrib() fouled up texture object reference counts
 607         - glDeleteLists(0, n) caused assertion failure
 608         - bilinear texture sampling wasn't accurate enough
 609         - glClear w/ glDepthMask(GL_FALSE) didn't work right on 3Dfx
 610         - color components were reversed on big endian 32 bpp X visuals
 611     Changes:
 612         - removed GL_EXT_multitexture extension
 613
 614
 615 3.1 beta 2  May 24, 1999
 616     New:
 617         - multi-textured points and lines (mjk@nvidia.com)
 618         - optimized 24bpp X rendering (bernd.paysan@gmx.de)
 619         - added allegro support (bernie-t@geocities.com)
 620         - cleaned-up Windows-related stuff (Ted Jump)
 621         - minor stereo changes (KendallB@scitechsoft.com)
 622         - new BeOS driver which implements BGLView class
 623         - new Direct3D driver (see src/D3D)
 624         - more efficient filled gluCylinder() function
 625         - utilities:  util/showbuffer.[ch] and util/glstate.[ch]
 626         - fixed some IRIX compiler warnings
 627         - added support for building Mesa in XFree86 with
 628             SGI's GLX (kevin@precisioninsight.com)
 629     Bug fixes:
 630         - a variety of Windows/Mesa bug fixes (mjk@nvidia.com)
 631         - packed pixel images weren't unpacked correctly
 632         - patches some win32 files in GLUT (mjk@nvidia.com)
 633         - glTexImage[123]D() didn't accept internalFormat == GL_COLOR_INDEX
 634         - fixed lighting bug in Keith's new shading code
 635         - fixed texture segfault seen in Lament screensaver
 636         - fixed miscellaneous low-memory bugs
 637         - glClear(GL_COLOR_BUFFER_BIT) with RGBA or CI masking was broken
 638         - GL_LINEAR sampling of 3D textures was broken
 639         - fixed SVR4 'cc' compiler macro problem (dawes@xfree86.org)
 640         - added GL_TEXTURE_PRIORITY fix (keithh@netcomuk.co.uk)
 641         - fixed wide point and wide line conformance bugs (brianp)
 642     Changes:
 643         - some device driver changes (see src/dd.h)
 644         - new copyright on core Mesa code
 645
 646
 647 3.1 beta 3  September 17, 1999
 648     New:
 649         - optimized glAccum function
 650         - optimized 24bpp rendering in XMesa driver
 651         - GLU 1.2 polygon tessellator
 652     Bug Fixes:
 653         - glGetTexLevelParameter wasn't fully implemented
 654         - glXUseXFont now handles multi-byte fonts
 655         - glIsEnabled(GL_TEXTURE_2D / 3D) returned wrong result
 656         - alpha channel of blending points, lines was sometimes incorrect
 657     Changes:
 658         - New library names:  "libGL" instead of "libMesaGL"
 659         - New library numbering: libGL.so.1.2.310
 660         - New subdirectories:  docs/ and bin/
 661         - New Makefile-system (autoconf,automake,libtool)
 662
 663
 664 3.1 final  December 14, 1999
 665     New:
 666         - added demos/gloss.c
 667         - added xdemos/glxdpyinfo.c
 668         - added GLX_ARB_get_proc_address extension
 669         - rewritten glTexImage code paths (faster, less memory, bug fixes)
 670     Bug Fixes:
 671         - several vertex array bug fixes
 672         - overlapping glCopyPixels with pixel zooming now works
 673         - glXUseXFont() bitmaps were vertically shifted by one pixel
 674         - glCopyPixels with pixel zooming now works
 675
 676
 677 3.2 final  April 24, 2000
 678     Bug fixes:
 679         - fixed memcpy bugs in span.c
 680         - fixed missing glEnd problem in demos/tessdemo.c
 681         - fixed bug when clearing 24bpp Ximages
 682         - fixed clipping problem found in Unreal Tournament
 683         - fixed Loki's "ice bug" and "crazy triangles" seen in Heretic2
 684         - fixed Loki's 3dfx RGB vs BGR bug
 685         - fixed Loki's 3dfx smooth/flat shading bug in SoF
 686     Changes:
 687         - updated docs/README file
 688         - use bcopy() optimizations on FreeBSD
 689         - re-enabled the optimized persp_textured_triangle() function
 690
 691
 692 3.2.1  July 19, 2000
 693     Bug fixes:
 694         - gluBuild2DMipmaps() didn't accept GL_BGRA
 695         - Fixed compile/makefile problems on IRIX
 696         - fixed segfault in 3dfx driver when using GL selection/feedback
 697         - no longer cull very, very tiny triangles
 698         - blending w/ drawbuffer==GL_FRONT_BACK caused segfault (sw rendering)
 699         - fixed Motif detection code in widgets-mesa/configure.in
 700         - glColorMaterial and glMaterial updates to emissive and ambient
 701           didn't always work right
 702         - Specular highlights weren't always in the right place
 703         - clipped GL_LINE mode polygons had interior lines appear
 704         - blend term GL_ONE_MINUS_CONSTANT_ALPHA was broken
 705         - GL_NICEST fog didn't always work with flat shading
 706         - glRect commands in display lists were sometimes miscolored
 707         - Line Z offset didn't always work
 708         - fixed texgen normal vector problem (gloss's teapot)
 709         - numerous GL conformance bugs fixed
 710     Changes:
 711         - glColorMask(false, false, false, false) handled better/faster
 712         - reverted to old GLU polygon tessellator, GLU 1.1
 713         - updated Win32 build files
 714
 715
 716 3.3  July 21, 2000
 717     New:
 718         - antialiased triangles now implemented
 719         - GL_EXT_texture_env_add texture mode extension
 720         - GLX 1.3 API
 721         - support for separate draw/read buffers (ie GL_SGI_make_current_read)
 722         - thread-safe API dispath
 723         - improved glxinfo program
 724         - demos/texdown program to measure texture download performance
 725         - glext.h header file
 726         - demos/geartrain program
 727         - GL_EXT_texture_lod_bias extension
 728         - demos/lodbias program
 729         - further optimized glRead/DrawPixels for 16-bit TrueColor X visuals
 730         - GLX_EXT_visual_rating extension (a no-op, however)
 731         - GL_HP_occlusion_test extension (for X and OS/Mesa drivers)
 732         - demos/occlude program
 733         - GL_SGIS_pixel_texture and GL_SGIX_pixel_texture extensions
 734         - demos/pixeltex program
 735         - GL_SGI_color_matrix extension
 736         - GL_SGI_color_table extension
 737         - GL_EXT_histogram extension
 738         - GL_ARB_texture_cube_map extension
 739         - added xdemos/glxheads and xdemos/manywin
 740         - demos/texenv.c demo
 741         - GL_EXT_texture_env_combine extension (by Holger Waechtler)
 742         - Xlib driver is now thread-safe (see xdemos/glthreads)
 743     Bug Fixes:
 744         - various GL conformance failures fixed since 3.2.1
 745     Changes:
 746         - gl.h now uses #defines instead of C enums for all tokens
 747         - glu.h now uses #defines instead of C enums for all tokens
 748         - moved programs from 3Dfx/demos/ into demos/ directory
 749
 750
 751 3.4  Month ??, 2000
 752     XXX copy from 3.4's VERSION file
 753
 754
 755
 756 3.5  Month ??, 2000
 757     New:
 758         - internals of Mesa divided into modular pieces (Keith Whitwell)
 759         - support for hardware T&L for DRI
 760         - GL_EXT_convolution extension
 761         - GL_ARB_imaging subset
 762         - OSMesaCreateContextExt() function
 763         - GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add)
 764         - GL_MAX_TEXTURE_UNITS_ARB now defaults to three.
 765         - libOSMesa.so now created, contains the OSMesa driver interface
 766         - GL_EXT_fog_coord extension (Keith Whitwell)
 767         - GL_EXT_secondary_color extension (Keith Whitwell)
 768         - GL/glxext.h header file for GLX extensions
 769         - Improved precision in glReadPixels, improves conformance for 16bpp
 770         - somewhat faster software texturing, fogging, depth testing
 771     Bug Fixes:
 772         - fbiRev and tmuRev were unitialized when using Glide3
 773     Changes:
 774         -