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  11   <h1>The Mesa 3D Graphics Library</h1>
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  17 <b>
  18 NOTE: Changes for Mesa 6.4 and later are documented in the corresponding
  19 <a href="relnotes.html">release notes</a> file.
  20 </b>
  21
  22
  23 <h1>Mesa Version History</h1>
  24
  25
  26 <h2>1.0 beta   February 1995</h2>
  27 <ul>
  28 <li>Initial release
  29 </ul>
  30
  31 <h2>1.1 beta   March 4, 1995</h2>
  32 Changes:
  33 <ul>
  34 <li>faster point and line drawing (2x faster)
  35 <li>more systems supported, better Makefiles
  36 <li>Renamed lib*.a files to avoid collisions
  37 <li>many small bug fixes
  38 </ul>
  39 New:
  40 <ul>
  41 <li>pseudo-GLX functions added
  42 <li>new implementation of evaluators (eval2.c)
  43 <li>GLUT support
  44 </ul>
  45
  46 <h2>1.1.1 beta   March 7, 1995</h2>
  47 Changes:
  48 <ul>
  49 <li>Reverted from eval2.c to eval.c due to FPE on Linux
  50 <li>more speed improvements
  51 <li>more Makefile changes
  52 </ul>
  53
  54 <h2>1.1.2 beta   March 14, 1995</h2>
  55 New:
  56 <ul>
  57 <li>implementation of SGI's blending extensions
  58 <li>glXUseXFont implemented
  59 <li>added MESA_DEBUG environment variable support
  60 </ul>
  61 Changes:
  62 <ul>
  63 <li>Using eval2.c again
  64 <li>more FPE-prevention checks (0-length normals are OK)
  65 <li>a few small bug fixes
  66 <li>much faster pixel logic ops!
  67 <li>faster transformation arithmetic
  68 </ul>
  69
  70 <h2>1.1.3 beta   March 31, 1995</h2>
  71 New:
  72 <ul>
  73 <li>gluScaleImage() and gluBuild2DMipMaps() implemented
  74 <li>Mesa widgets for Xt/Motif
  75 <li>blendEXT demos
  76 <li>added environment variables for selecting visuals
  77 </ul>
  78 Changes:
  79 <ul>
  80 <li>almost all GLUT demos work correctly now
  81 <li>faster X device driver functions
  82 <li>more bug fixes
  83 </ul>
  84
  85 <h2>1.1.4 beta   April 20, 1995</h2>
  86 Bug fixes:
  87 <ul>
  88 <li>missing #define SEEK_SET in src-tk/image.c
  89 <li>compile glShadeModel into display lists
  90 <li>fixed pow() domain error in src/light.c
  91 <li>fixed "flickering bitmaps" in double buffer mode
  92 <li>fixed tk.h and aux.h for C++
  93 <li>state of LIGHT_MODEL_LOCAL_VIEWER was inverted
  94 </ul>
  95 New features:
  96 <ul>
  97 <li>MUCH, MUCH nicer dithering in 8-bit RGB mode
  98 <li>updated widgets and widget demos
  99 <li>Implemented GLXPixmap functions
 100 <li>Added GLU 1.1 and GLX 1.1 functions
 101 <li>Changed the X/Mesa interface API, more versatile
 102 <li>Implemented gluPartialDisk()
 103 </ul>
 104
 105 <h2>1.2   May 22, 1995</h2>
 106 Bug fixes:
 107 <ul>
 108 <li>IRIX 4.x makefile problem
 109 <li>modified tk to share root colormap as needed
 110 <li>gluLookAt normalization problem
 111 <li>suppress Expose, NoExpose events in swapbuffers
 112 <li>glBitmap() and glDrawPixels() clipping
 113 </ul>
 114 New features:
 115 <ul>
 116 <li>GL_BLEND, GL_MODULATE, GL_DECAL, and GL_REPLACE_EXT texture
 117             modes implemented
 118 <li>texture maps stored more efficiently
 119 <li>texture maps can be compiled into display lists
 120 <li>Bogdan Sikorski's GLU polygon tesselation code
 121 <li>Linas Vepstas's sweep and extrusion library
 122 <li>glXCreateContext()'s shareList parameter works as it's supposed to.
 123         XMesaCreateContext() updated to accept a shareList parameter too.
 124 <li>Mesa can be compiled with real OpenGL .h files
 125 <li>MESA_BACK_BUFFER environment variable
 126 <li>better GLX error checking
 127 </ul>
 128
 129 <h2>1.2.1   June 22, 1995</h2>
 130 Bug fixes:
 131 <ul>
 132 <li>X/Mesa double buffer window resize crash
 133 <li>widgets now pass PointerMotion events
 134 <li>X/Mesa incorrect default clear color and drawing color
 135 <li>more robust X MIT-SHM support in X/Mesa
 136 <li>glTexImage( format=GL_LUMINANCE ) didn't work
 137 <li>GL_LINE mode polygons with line width &gt; 1.0 could cause a crash
 138 <li>numerous feedback bugs
 139 <li>glReadPixels() from depth buffer was wrong
 140 <li>error prone depth and stencil buffer allocation
 141 New features:
 142 <li>Preliminary Microsoft Windows driver
 143 <li>Implemented a number of missing functions: glEvalCoord[12][df]v(),
 144         glGet...(), etc.
 145 <li>Added a few missing symbols to gl.h and glu.h
 146 <li>Faster rendering of smooth-shaded, RGBA, depth-buffered polygons.
 147 <li>Faster rendering of lines when width=2.0
 148 <li>Stencil-related functions now work in display lists
 149 </ul>
 150 Changes:
 151 <ul>
 152 <li>renamed aux.h as glaux.h (MS-DOS names can't start with aux)
 153 <li>most filenames are in 8.3 format to accommodate MS-DOS
 154 <li>use GLubytes to store arrays of colors instead of GLints
 155 </ul>
 156
 157 <h2>1.2.2   August 2, 1995</h2>
 158 New features:
 159 <ul>
 160 <li>texture mapped points and lines
 161 <li>NURBS! (but not 100% complete)
 162 <li>viewports may safely extend beyond window boundaries
 163 <li>MESA_PRIVATE_CMAP environment variable
 164 <li>Grayscale X display support
 165 <li>two new demos:  demos/gears.c and demos/shadow.c
 166 <li>MachTen for Macintosh configuration
 167 </ul>
 168 Bug fixes:
 169 <ul>
 170 <li>glGet*(GL_DEPTH_BITS) returned bytes, not bits
 171 <li>point, line, and bitmap rasterization suffered from roundoff errors
 172 <li>fixed a division by zero error in line clippping
 173 <li>occasional wrong default background color really fixed!
 174 <li>glDepthFunc(GL_ALWAYS) with glDepthMask(GL_FALSE) didn't work
 175 <li>gluBuild2DMipmaps malloc problem fixed
 176 <li>view volume clipping of smooth shaded lines resulted in bad colors
 177 </ul>
 178 Changes:
 179 <ul>
 180 <li>new visual selection method in glXChooseVisual()
 181 <li>improved GLU quadric functions
 182 <li>call XSync for glFinish and XFlush for glFlush
 183 <li>glVertex() calls now use a function pointer to avoid conditionals
 184 <li>removed contrib directory from Mesa tar file (available on ftp site)
 185 <li>AIX shared library support
 186 <li>Removed GLUenum type as it's not in OpenGL
 187 </ul>
 188
 189 <h2>1.2.3   September 26, 1995</h2>
 190 New features:
 191 <ul>
 192 <li>Mesa header files now equivalent to SGI OpenGL headers
 193 <li>Support for HP's Color Recovery dithering displays
 194 <li>Faster vertex transformation
 195 <li>Faster raster operations into X windows under certain conditions
 196 <li>New configurations:  HP w/ shared libs, Ultrix w/ GCC, Data General
 197 <li>4-bit visuals now supported
 198 </ul>
 199 Bug fixes:
 200 <ul>
 201 <li>glScissor bug fixed
 202 <li>round-off errors in clipping lines against clip planes fixed
 203 <li>byte swapping between hosts and display servers implemented
 204 <li>glGetError() can be called without a current rendering context
 205 <li>problem with accidentally culled polygons is fixed
 206 <li>fixed some widget compilation problems
 207 </ul>
 208
 209 <h2>1.2.4   November 17, 1995</h2>
 210 New features:
 211 <ul>
 212 <li>More speed improvements (lighting, fogging, polygon drawing)
 213 <li>Window system and OS-independent off-screen rendering
 214 <li>Preliminary Fortran bindings
 215 <li>glPolygonOffsetEXT implemented
 216 <li>glColorMask and glIndexMask now fully implemented
 217 <li>glPixelZoom implemented
 218 <li>display lists fully implemented
 219 <li>gamma correction
 220 <li>dithering in 8-bit TrueColor/DirectColor visuals
 221 </ul>
 222 Changes:
 223 <ul>
 224 <li>Improved device driver interface
 225 <li>tk.h renamed to gltk.h to avoid conflicts with Tcl's Tk
 226 <li>Dithering support moved from core into device driver
 227 </ul>
 228 Bug fixes:
 229 <ul>
 230 <li>glEnable/Disable( GL_LIGHTING ) didn't always take effect
 231 <li>glReadPixels byte swapping was broken
 232 <li>glMaterial with pname==GL_AMBIENT_AND_DIFFUSE was broken
 233 <li>duplicate glColor4b() prototype in GL/gl.h removed
 234 <li>stripes in wave -ci demo fixed
 235 <li>GL_LINEAR_MIPMAP_NEAREST had wrong value
 236 <li>bugs in HP Color Recovery support fixed
 237 <li>fixed bug when blending lines, points, bitmaps outside of window
 238 </ul>
 239
 240 <h2>1.2.5   November 30, 1995</h2>
 241 New Features:
 242 <ul>
 243 <li>updated MS Windows driver
 244 <li>new implementation of StaticGray/GrayScale visual support
 245 </ul>
 246 Bug fixes:
 247 <ul>
 248 <li>pixelzooming with gamma correction or blending didn't work
 249 <li>HP color recovery visual wasn't being picked by glXChooseVisual
 250 <li>glClear didn't always observe glColorMask changes
 251 <li>olympic and offset demos didn't compile on some Suns
 252 <li>texcoord clamping wasn't correct
 253 <li>a polygon optimization introduced an occasional sampling problem
 254 </ul>
 255
 256 <h2>1.2.6   January 26, 1996</h2>
 257 New Features:
 258 <ul>
 259 <li>faster line and polygon rendering under certain conditions.  See
 260           Performance Tips 9 and 10 in README
 261 <li>profiling
 262 <li>lighting is a bit faster
 263 <li>better perspective corrected texture mapping
 264 <li>Amiga AmiWin (X11) support
 265 <li>preliminary Linux SVGA driver
 266 Changes:
 267 <li>now using a 16-bit depth buffer, faster, smaller
 268 <li>GL_NORMALIZE is disabled by default
 269 </ul>
 270 Bug fixes:
 271 <ul>
 272 <li>projective texture mapping
 273 <li>fixed a memory leak in the context destroy function
 274 <li>GL_POLYGON with less than 3 vertices caused a crash
 275 <li>glGet*() returned wrong result for GL_INDEX_MODE
 276 <li>reading pixels from an unmapped X window caused a BadMatch error
 277 </ul>
 278
 279 <h2>1.2.7   March 5, 1996</h2>
 280 New:
 281 <ul>
 282 <li>faster lighting
 283 <li>faster 16-bit TrueColor rendering on Linux
 284 <li>faster 32-bit TrueColor rendering on Linux, HP, IBM
 285 <li>non-depth-buffered XImage polygons are faster
 286 <li>vertex array extension
 287 <li>software alpha planes
 288 <li>updated Macintosh driver
 289 <li>new NeXT driver
 290 <li>GLU quadric functions generate texture coordinates
 291 <li>reflect.c demo - reflective, textured surface demo
 292 </ul>
 293 Changes:
 294 <ul>
 295 <li>gamma correction code moved into the X driver for better performance
 296 </ul>
 297 Bug fixes:
 298 <ul>
 299 <li>multiple glClipPlane()'s didn't work reliably
 300 <li>glPolygonMode() didn't always work
 301 <li>glCullFace( GL_FRONT_AND_BACK ) didn't work
 302 <li>texture mapping with gamma correction was buggy
 303 <li>floating point exceptions in texture coordinate interpolation
 304 <li>XImage byte swapping didn't always work
 305 <li>polygon edge flags weren't always used correctly
 306 </ul>
 307
 308 <h2>1.2.8   May 22, 1996</h2>
 309 New:
 310 <ul>
 311 <li>overlay planes on X servers with the SERVER_OVERLAY_VISUALS property
 312 <li>better monochrome output
 313 <li>more IRIX 6.x configurations
 314 <li>more robust RGB mode color allocation
 315 <li>added MESA_XSYNC environment variable
 316 <li>GLX_MESA_pixmap_colormap and GLX_EXT_visual_info extensions
 317 <li>GL_MESA_window_pos extension
 318 <li>faster glReadPixels/glDrawPixels for GL_DEPTH and GL_UNSIGNED_SHORT
 319         and GL_UNSIGNED_INT
 320 <li>driver for prototype Cirrus Mondello 3-D board
 321 <li>updated AmigaDOS driver
 322 <li>a few small speed optimizations in polygon rendering
 323 </ul>
 324 Changes:
 325 <ul>
 326 <li>internal device driver interface modified to simplify device
 327           driver implementations and to support hardware Z buffers
 328 <li>several changes to the X/Mesa interface (xmesa.h)
 329 </ul>
 330 Bug fixes:
 331 <ul>
 332 <li>fixed pow(0,0) domain error triggered on some systems
 333 <li>glStencilClear() in a display list caused an infinite loop
 334 <li>glRasterPos*() was sometimes off by +/-0.5 in X and Y
 335 <li>color masking and blending were performed in wrong order
 336 <li>auxSolidCylinder() sometimes drew a wire-frame cylinder
 337 <li>fixed file writing bug in osdemo.c
 338 <li>pixel mapping didn't always work
 339 <li>the GL_GEQUAL stencil func didn't work
 340 <li>the GL_INVERT stencil op didn't work
 341 <li>the stencil write mask didn't work
 342 <li>glPush/PopAttrib() didn't do enough error checking
 343 <li>glIsList() didn't always work correctly
 344 </ul>
 345
 346 <h2>2.0  October 10, 1996</h2>
 347 New:
 348 <ul>
 349 <li>Implements OpenGL 1.1 API functions
 350 <li>all texture filtering modes supported (mipmapping)
 351 <li>faster texture mapping, see Performance Tip 11 in README
 352 <li>antialiased RGB points
 353 <li>X support for line and polygon stippling
 354 <li>glDrawBuffer( GL_FRONT_AND_BACK ) works
 355 <li>util/ directory of useful stuff
 356 <li>demos/texobj demo of texture objects
 357 </ul>
 358 Changes:
 359 <ul>
 360 <li>major internal changes for thread-safeness
 361 <li>new device driver interface
 362 <li>MESA_ALPHA env variable removed
 363 <li>triangle rasterizer replaces polygon rasterizer
 364 </ul>
 365 Bug fixes:
 366 <ul>
 367 <li>glPopAttrib() bug
 368 <li>glDrawBuffer(GL_NONE) works now
 369 </ul>
 370
 371 <h2>2.1  December 14, 1996</h2>
 372 New:
 373 <ul>
 374 <li>VMS support
 375 <li>MS-DOS driver
 376 <li>OpenStep support
 377 <li>updated, combined Windows 95/NT driver
 378 <li>implemented glGetLighti() and glGetTexGen*()
 379 <li>GLX does garbage collection of ancillary buffers
 380 </ul>
 381 Bug fixes:
 382 <ul>
 383 <li>removed unused _EXT constants from gl.h
 384 <li>fixed polygon offset bugs
 385 <li>Z coordinates of clipped lines were incorrect
 386 <li>glEdgeFlag() in display lists didn't always work
 387 <li>glLight*() in display lists didn't work
 388 <li>fixed X line stipple bugs (Michael Pichler)
 389 <li>glXUseXfonts XFreeFont/XFreeFontInfo bug fixed
 390 <li>fixed a feedback bug
 391 <li>glTexGen*() now transforms GL_EYE_PLANE by inverse modelview matrix
 392 <li>polygons were sometimes culled instead of clipped
 393 <li>triangle rasterizer suffered from float/int overflow exceptions
 394 <li>fixed FP underflow exception in lighting (specular exponent)
 395 <li>glEnable/glDisable of GL_EXT_vertex_array enums didn't work
 396 <li>fixed free(NULL) in GLU tesselator code
 397 <li>using 24-bit color on some X servers resulted in garbage rendering
 398 <li>32-bit per pixel mode for XFree86 now works
 399 <li>glRotate(a,0,0,0) gave unpredictable results
 400 <li>GL_LINE_STRIP with &gt; 480 vertices had occasional clipping problems
 401 <li>8-bit TrueColor GLXPixmap rendering incorrectly required a colormap
 402 <li>glMaterial() wasn't ignored when GL_COLOR_MATERIAL was enabled
 403 <li>glEnable(GL_COLOR_MATERIAL) followed by glColor() didn't work right
 404 <li>accumulation buffer was limited to positive values
 405 <li>projective textures didn't work
 406 <li>selection buffer overflows weren't handled correctly
 407 </ul>
 408 Changes:
 409 <ul>
 410 <li>restored the GL_EXT_polygon_offset extension
 411 <li>slightly faster RGB dithering
 412 <li>the SVGA driver works again
 413 <li>Amiga driver now distributed separately
 414 <li>NeXT driver updated for Mesa 2.x
 415 </ul>
 416
 417 <h2>2.2  March 14, 1997</h2>
 418 New:
 419 <ul>
 420 <li>better color selection when dithering
 421 <li>added GL_EXT_texture_object extension
 422 <li>updated MS-DOS driver for DJGPP
 423 <li>added openbsd make configuration
 424 <li>faster dithered flat-shaded triangles
 425 <li>various compilation problems with Motif widgets fixed
 426 <li>gl.h, glx.h and glu.h name mangling option
 427 <li>BeOS driver
 428 <li>3D texture mapping extension
 429 <li>GL_MESA_resize_buffers extension
 430 <li>morph3d, stex3d and spectex demos
 431 <li>3Dfx support
 432 </ul>
 433 Bug fixes:
 434 <ul>
 435 <li>glColorMaterial should finally work right in all respects
 436 <li>linear interpolation of mipmap levels was incorrectly weighted
 437 <li>readpix.c didn't compile on Macintosh
 438 <li>GL_INVERT and related logic ops didn't work right
 439 <li>glTexImage[12]D() didn't check its parameters consistantly
 440 <li>fixed a memory leak in glTexImage[12]D()
 441 <li>kludged around a SunOS 5.x/GCC compiler bug in the feedback code
 442 <li>glReadPixels aborted instead of normally catching some errors
 443 <li>a few 1.1 constants were missing or misnamed in gl.h
 444 <li>glBegin(p); glBegin(q); didn't generate an error
 445 <li>fixed a memory leak in GLX code
 446 <li>clipping of concave polygons could cause a core dump
 447 <li>1-component alpha texture maps didn't work
 448 <li>fixed a GLU polygon tesselator bug
 449 <li>polygons with colinear vertices were sometimes culled
 450 <li>feedback triangle colors were wrong when using smooth shading
 451 <li>textures with borders didn't work correctly
 452 <li>colors returned in feedback mode were wrong when using lighting
 453 <li>spotlights didn't effect ambient lighting correctly
 454 <li>gluPartialDisk() had a few bugs
 455 </ul>
 456 Changes:
 457 <ul>
 458 <li>device driver interface expanded to support texture mapping
 459 <li>faster matrix inversion subroutine
 460 <li>commented out #include "wmesa_extend.h" from src/wmesa.c
 461 <li>fixed many compiler warnings in the demo programs
 462 </ul>
 463
 464 <h2>2.3  June 30, 1997</h2>
 465 New:
 466 <ul>
 467 <li>Mesa distribution divided into two pieces:  library code and demos
 468 <li>faster vertex transformation, clip testing, lighting
 469 <li>faster line drawing
 470 <li>TrueColor visuals how have dithering (for depths < 24 bits)
 471 <li>added MESA_NO_DITHER environment variable
 472 <li>new device driver function: NearFar(), RenderVB(), RasterSetup()
 473 <li>added LynxOS configuration
 474 <li>added cygnus Win32 configuration
 475 <li>added texcyl.c GLUT demo
 476 <li>added XMesaDitherColor() to X/Mesa interface
 477 <li>new NURBS code from Bogdan Sikorski
 478 <li>added demos/shape.c (non-rectangular X window!)
 479 </ul>
 480 Bug fixes:
 481 <ul>
 482 <li>glEnable/DisableClientState() were missing from GL/gl.h
 483 <li>GL_SPHERE_MAP texcoord generation didn't work correctly
 484 <li>glXGetConfig() returned wrong number of depth, stencil, accum bits
 485 <li>glDrawPixels feedback/selection didn't examine RasterPos valid bit
 486 <li>black and white were reversed on some monochrome displays
 487 <li>fixed potential image memory leak (wasn't setting reference counter)
 488 <li>glDrawPixels sometimes didn't recognize some GL state changes
 489 <li>gluProject/UnProject() didn't check for divide by zero
 490 <li>stex3d demo called random() and srandom(), not portable
 491 <li>fixed memory leaks in context.c and drawpix.c
 492 <li>fixed NULL dereferencing problem in gl_update_texture_state()
 493 <li>glReadPixels between glBegin/glEnd didn't generate an error.
 494 <li>fixed memory leak in polygon tesselator (Randy Frank)
 495 <li>fixed seg fault bug drawing flat-shaded, depth-tested lines
 496 <li>clipped GL_TRIANGLE_STRIPs sometimes had wrong color when flat-shaded
 497 <li>glBindTexture sometimes didn't work
 498 <li>fixed a bug deep in glXReleaseBuffersMESA()
 499 <li>fog was mistakenly applied to alpha
 500 <li>glPopMatrix didn't set "dirty matrix" flag
 501 <li>glPolygonStipple pattern was sometimes wrong
 502 <li>glClear wasn't disabled during feedback and selection
 503 <li>fixed memory leak in glTexSubImage[123]D
 504 </ul>
 505 Changes:
 506 <ul>
 507 <li>many library source files reorganized
 508 <li>faster X color allocation, colors also freed when finished with them
 509 <li>new texture sampling function pointer in texture objects
 510 <li>incorporated 3Dfx VooDoo driver v0.16 into main source tree
 511 <li>many 3Dfx driver updates
 512 <li>cygnus Makefiles now included
 513 <li>updated DOS driver
 514 <li>made a few changes to dosmesa.c and wmesa.c (VB-&gt;Unclipped)
 515 <li>internally, colors now stored in GLubytes, not GLfixed
 516 <li>optimized changing of GL_SHININESS parameter
 517 </ul>
 518
 519 <h2>2.4  September 18, 1997</h2>
 520 New:
 521 <ul>
 522 <li>updated 3Dfx Glide driver
 523 <li>hacks for 3Dfx rendering into an X window or fullscreen
 524 <li>added depth buffer access functions to X/Mesa and OS/Mesa interfaces
 525 </ul>
 526 Bug fixes:
 527 <ul>
 528 <li>pixel buffer could overflow with long, wide lines
 529 <li>fixed FP underflow problems in lighting
 530 <li>glTexSubImage1D() had an unitialized variable
 531 <li>incomplete texture objects could cause a segfault
 532 <li>glDrawPixels with GL_COMPILE_AND_EXECUTE caused infinite loop
 533 <li>flat-shaded quads in a strip were miscolored if clipped
 534 <li>mipmapped triangle lod computation now works correctly
 535 <li>fixed a few under/overflow bugs in triangle rasterizer
 536 <li>glArrayElement() assigned bad normal if normal array disabled
 537 <li>changed argument to glXReleaseBuffersMESA()
 538 <li>fixed small triangle underflow bugs in tritemp.h (hopefully)
 539 <li>glBindTexture(target, 0) caused a crash
 540 <li>glTexImage[123]D() with NULL image pointer caused crash
 541 <li>glPixelStore parameters are now ignored during display list execution
 542 <li>fixed a two-sided lighting w/ clipping bug (black vertices)
 543 <li>textures with width!=height were sometimes mis-rendered
 544 <li>"weird" projection matrices could cause div by 0, other fp errors
 545 </ul>
 546 Changes:
 547 <ul>
 548 <li>changed precompiled header symbol from PCH to PC_HEADER
 549 <li>split api.c into api1.c and api2.c
 550 <li>added hash.c source file (but not used yet)
 551 <li>a few Sun and HP configuration file changes
 552 <li>MESA_GLX_FX env var replaces MESA_FX_WINDOW and MESA_FX_FULLSCREEN
 553 <li>fixed a few cygnus build problems (src/Makefile.cygnus, src/wmesa.c)
 554 </ul>
 555
 556 <h2>2.5  November 20, 1997</h2>
 557 New:
 558 <ul>
 559 <li>updated 3Dfx driver (v20) for GLQuake
 560 <li>added GL_EXT_paletted_texture extension
 561 <li>added GL_EXT_shared_texture_palette extension
 562 <li>added GL_EXT_point_parameters extension
 563 <li>now including Mark Kilgard's GLUT library v3.6
 564 <li>new GLUT-based demos in gdemos/
 565 <li>added a few more Unix config targets
 566 <li>added Intel X86 assembly language vertex transformation code
 567 <li>3Dfx/Glide driver for Mesa now recognizes SST_SCREENREFRESH env var
 568 <li>Windows 95 S3 Virge driver
 569 </ul>
 570 Bug fixes:
 571 <ul>
 572 <li>glCopyTexImage?D would crash due to uninitialized variable
 573 <li>glColor w/ glColorMaterial in a display list caused a bug
 574 <li>fixed several glDrawPixels() and ReadPixels() bugs in 3Dfx driver
 575 <li>glVertex4*() vertices weren't always projected correctly
 576 <li>trying to use mipmapped textured points or lines caused crash
 577 <li>glColor[34][fd]() values now clamped to [0,1] before int conversion
 578 </ul>
 579 Changes:
 580 <ul>
 581 <li>new device driver functions for texture mapping
 582 <li>hash tables used for display list and texture object lookup
 583 <li>fixed GLX visual handling code to avoid saving redundant visuals
 584 <li>3Dfx Glide libraries automatically linked to libMesaGL.so
 585 <li>dropped the Cirrus Logic Mondello code since it's obsolete
 586 <li>updated Cygnus Makefiles (Stephane Rehel)
 587 <li>updated Windows MSVC++ Makefiles (Oleg Letsinsky)
 588 <li>procedure for making library files has changed: scripts now take
 589         a major and minor version arguments.  Make-config changed a lot.
 590 <li>new implementation of glTexSubImage2D()
 591 <li>updated widgets-mesa directory to create libMesaGLwM.a (Motif widget)
 592 <li>separate linux-glide and linux-386-glide configurations
 593 </ul>
 594
 595 <h2>2.6  February 12, 1998</h2>
 596 New:
 597 <ul>
 598 <li>Windows WGL functions
 599 <li>updated VMS, DOS, Windows, Cygnus, BeOS, Amiga compilation support
 600 <li>v0.22 of 3Dfx Glide driver
 601 <li>more X86 assembly language optimizations
 602 <li>faster blending for some modes
 603 <li>XMesaSetFXmode() to switch between 3Dfx window and full-screen mode
 604 <li>added preliminary thread support
 605 <li>added GLX_MESA_copy_sub_buffer extension
 606 <li>some clipping optimizations
 607 </ul>
 608 Bug fixes:
 609 <ul>
 610 <li>fixed shading/material bug when drawing long primitive strips
 611 <li>fixed clipping problem in long primitive strips
 612 <li>fixed clipping bug when using 3Dfx driver
 613 <li>fixed a problem when trying to use X fonts w/ 3Dfx driver
 614 <li>fixed a texture filter bug in 3Dfx/Glide driver
 615 <li>fixed bug in 3Dfx/Glide driver involving depth mask &amp; clearing
 616 <li>glLoadMatrix to set projection matrix confused the 3Dfx driver
 617 <li>non-identity texture matrices didn't work with linux-386 configs
 618 <li>glGenTextures() didn't reserve the returned texture IDs
 619 <li>NULL proxy image sent to glTexImageXD() caused crash
 620 <li>added texture state validation optimization (Henk Kok)
 621 <li>fixed colormap reuse problem when using both RGB and CI windows
 622 <li>32bpp True/DirectColor X visuals weren't recognized
 623 <li>fixed potential problem in evaluators memory allocation
 624 <li>fixed assorted demo compilation bugs
 625 </ul>
 626 Changes:
 627 <ul>
 628 <li>replaced old Mesa/windows/ directory with Mesa/WIN32/ directory
 629 <li>converted a few old glaux/gltk demos to GLUT
 630 <li>renamed directories:  demos -&gt; xdemos,  gdemos -&gt; demos
 631 </ul>
 632
 633
 634 <h2>3.0  September 17, 1998</h2>
 635 New:
 636 <ul>
 637 <li>OpenGL 1.2 API
 638 <li>GL_EXT_abgr pixel format extension
 639 <li>GL_SGIS_texture_edge_clamp extension
 640 <li>GL_SGIS_multitexture extension (to be replaced by GL_ARB_multitex)
 641 <li>GL_EXT_multitexture extension (to be replaced by GL_ARB_multitex)
 642 <li>GL_EXT_rescale_normal extension and renormal.c demo
 643 <li>GLX_SGI_video_sync extension (a no-op)
 644 <li>antialiased lines
 645 <li>glGetTexImage() now implemented
 646 <li>glDraw/Copy/ReadPixels() optimizations
 647 <li>optimized textured triangle code (Marten Stromberg)
 648 <li>more optimization of dithered TrueColor triangles in X driver
 649 <li>Linux GGI driver
 650 <li>updated MGL driver
 651 </ul>
 652 Bug fixes:
 653 <ul>
 654 <li>lots of assorted compilation fixes
 655 <li>glInitNames didn't write initial hit record
 656 <li>glBitmap didn't always check for invalid raster position
 657 <li>switching between GLX and OSMesa contexts caused a crash
 658 <li>fixed uninitialized variable in Mesa widget code
 659 <li>fixed typo in texture code which caused book/texgen to crash
 660 <li>fixed texture sampling bug when filter=GL_LINEAR and wrap=GL_CLAMP
 661 <li>gluDisk() in POINT or LINE mode sometimes failed
 662 <li>fixed texture + fog bug
 663 <li>GL_COMPILE_AND_EXECUTE mode didn't work reliably
 664 <li>glMultMatrix in projection matrix mode w/ 3Dfx driver could fail
 665 <li>glDrawPixels(color index pixels) weren't converted to RGBA
 666 <li>fixed possible getenv() buffer overflow security bug
 667 <li>glBitmap in feedback mode was offset by xOrig, yOrig params
 668 <li>device driver's DrawPixels hook was never used
 669 <li>glDrawPixels with zoomY!=1 and top/bottom clipping didn't work
 670 <li>glDrawPixels optimized for GL_LUMINANCE, GL_LUMINANCE_ALPHA, GLubyte
 671 <li>fixed MakeCurrent bug in GLwRedrawObjects() in MesaWorkstation.c
 672 <li>glCopyTexSubImage2D() didn't work with 3Dfx driver
 673 <li>lines with width = 2 could cause crash
 674 <li>glClear with scissor rect sometimes cleared whole buffer
 675 <li>glTexSubImage2D( .. GL_COLOR_INDEX .. ) didn't work
 676 <li>glTexImageXD( .. GL_ABGR_EXT .. ) didn't work
 677 <li>computation of inverse modelview matrix sometimes failed
 678 <li>fixed GL_CLAMP mode texture sampling bug
 679 <li>textured line interpolation was somewhat broken
 680 <li>textured triangle interpolation was also somewhat broken
 681 <li>glGet(MODELVIEW/PROJECTION/TEXTURE_MATRIX_STACK_DEPTH) off by one
 682 <li>evaluator state wasn't fully initialized
 683 <li>texture coordinate clipping was buggy
 684 <li>evaluator surfaces could be mis-colored
 685 <li>glAccum(GL_RETURN, s) didn't obey glColorMask() settings
 686 <li>zero area polygons shouldn't be culled if polygon mode is point/line
 687 <li>clipped width and height of glReadPixels was sometimes off by one
 688 <li>blending with alpha = 0 or 1.0 wasn't always exact
 689 <li>reading of pixels from clipped region was buggy
 690 <li>minor tweaking of X visual management in GLX emulator
 691 <li>glPolygonStipple now obeys pixel unpacking parameters
 692 <li>glGetPolygonStipple now obeys pixel packing parameters
 693 <li>interleaved vertex array texture coordinates were broken
 694 <li>query of proxy texture internal format was broken
 695 <li>alpha channel wasn't reliably cleared
 696 <li>fixed divide by zero error in gluScaleImage if dest size = 1 x 1
 697 </ul>
 698 Conformance bug fixes:
 699 <ul>
 700 <li>GL_SELECTION_BUFFER_POINTER and GL_SELECTION_BUFFER_SIZE were missing
 701 <li>GL_TEXTURE_INTERNAL_FORMAT was missing
 702 <li>glGet*(GL_POLYGON_STIPPLE) was broken
 703 <li>glPush/PopAttrib() didn't save/restore all texture state
 704 <li>glBitmap in feedback mode didn't work
 705 <li>feedback of texture coords didn't always work
 706 <li>glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLbyte was broke
 707 <li>glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLubyte was broke
 708 <li>glDrawPixels w/ format=GL_STENCIL_INDEX, type=GL_BITMAP was broke
 709 </ul>
 710 Changes:
 711 <ul>
 712 <li>upgraded GLUT to version 3.7
 713 <li>only GL and GLU library code included in MesaLib.tar.gz
 714 <li>GLUT and all demos now in MesaDemos.tar.gz
 715 <li>glaux and gltk libraries removed
 716 <li>IRIX -n32 and -64 libs go in lib32/ and lib64/ directories
 717 </ul>
 718
 719
 720 <h2>3.1 beta 1  November 19, 1998</h2>
 721 New:
 722 <ul>
 723 <li>GL_EXT_stencil_wrap extension
 724 <li>GL_INGR_blend_func_separate extension
 725 <li>GL_ARB_multitexture extension
 726 <li>GL_NV_texgen_reflection extension
 727 <li>newly optimized vertex transformation code
 728 <li>updated GLUT 3.7 code
 729 <li>better precision when using 32-bit Z buffer
 730 <li>Allegro DJGPP driver
 731 </ul>
 732 Bug fixes:
 733 <ul>
 734 <li>glCopyPixels between front/back buffers didn't copy alpha correctly
 735 <li>fixed out-of-bounds memory access in optimized 2-D texture code
 736 <li>glPixelStorei didn't accept GL_PACK/UNPACK_IMAGE_HEIGHT parameter
 737 <li>glGet*() didn't accept GL_MAX_3D_TEXTURE_SIZE parameter
 738 <li>clipping of texture coordinates sometimes had bad R,Q values
 739 <li>GL_CLAMP_TO_EDGE texture sampling was off by 0.5 texels
 740 <li>glEdgeFlagPointer() now takes a GLvoid * instead of GLboolean *
 741 <li>texture was sometimes applied twice with 3Dfx driver
 742 <li>glPush/PopAttrib() fouled up texture object reference counts
 743 <li>glDeleteLists(0, n) caused assertion failure
 744 <li>bilinear texture sampling wasn't accurate enough
 745 <li>glClear w/ glDepthMask(GL_FALSE) didn't work right on 3Dfx
 746 <li>color components were reversed on big endian 32 bpp X visuals
 747 </ul>
 748 Changes:
 749 <ul>
 750 <li>removed GL_EXT_multitexture extension
 751 </ul>
 752
 753
 754 <h2>3.1 beta 2  May 24, 1999</h2>
 755 New:
 756 <ul>
 757 <li>multi-textured points and lines (mjk@nvidia.com)
 758 <li>optimized 24bpp X rendering (bernd.paysan@gmx.de)
 759 <li>added allegro support (bernie-t@geocities.com)
 760 <li>cleaned-up Windows-related stuff (Ted Jump)
 761 <li>minor stereo changes (KendallB@scitechsoft.com)
 762 <li>new BeOS driver which implements BGLView class
 763 <li>new Direct3D driver (see src/D3D)
 764 <li>more efficient filled gluCylinder() function
 765 <li>utilities:  util/showbuffer.[ch] and util/glstate.[ch]
 766 <li>fixed some IRIX compiler warnings
 767 <li>added support for building Mesa in XFree86 with
 768         SGI's GLX (kevin@precisioninsight.com)
 769 </ul>
 770 Bug fixes:
 771 <ul>
 772 <li>a variety of Windows/Mesa bug fixes (mjk@nvidia.com)
 773 <li>packed pixel images weren't unpacked correctly
 774 <li>patches some win32 files in GLUT (mjk@nvidia.com)
 775 <li>glTexImage[123]D() didn't accept internalFormat == GL_COLOR_INDEX
 776 <li>fixed lighting bug in Keith's new shading code
 777 <li>fixed texture segfault seen in Lament screensaver
 778 <li>fixed miscellaneous low-memory bugs
 779 <li>glClear(GL_COLOR_BUFFER_BIT) with RGBA or CI masking was broken
 780 <li>GL_LINEAR sampling of 3D textures was broken
 781 <li>fixed SVR4 'cc' compiler macro problem (dawes@xfree86.org)
 782 <li>added GL_TEXTURE_PRIORITY fix (keithh@netcomuk.co.uk)
 783 <li>fixed wide point and wide line conformance bugs (brianp)
 784 </ul>
 785 Changes:
 786 <ul>
 787 <li>some device driver changes (see src/dd.h)
 788 <li>new copyright on core Mesa code
 789 </ul>
 790
 791
 792 <h2>3.1 beta 3  September 17, 1999</h2>
 793 New:
 794 <ul>
 795 <li>optimized glAccum function
 796 <li>optimized 24bpp rendering in XMesa driver
 797 <li>GLU 1.2 polygon tessellator
 798 </ul>
 799 Bug Fixes:
 800 <ul>
 801 <li>glGetTexLevelParameter wasn't fully implemented
 802 <li>glXUseXFont now handles multi-byte fonts
 803 <li>glIsEnabled(GL_TEXTURE_2D / 3D) returned wrong result
 804 <li>alpha channel of blending points, lines was sometimes incorrect
 805 </ul>
 806 Changes:
 807 <ul>
 808 <li>New library names:  "libGL" instead of "libMesaGL"
 809 <li>New library numbering: libGL.so.1.2.310
 810 <li>New subdirectories:  docs/ and bin/
 811 <li>New Makefile-system (autoconf,automake,libtool)
 812 </ul>
 813
 814
 815 <h2>3.1 final  December 14, 1999</h2>
 816 New:
 817 <ul>
 818 <li>added demos/gloss.c
 819 <li>added xdemos/glxdpyinfo.c
 820 <li>added GLX_ARB_get_proc_address extension
 821 <li>rewritten glTexImage code paths (faster, less memory, bug fixes)
 822 </ul>
 823 Bug Fixes:
 824 <ul>
 825 <li>several vertex array bug fixes
 826 <li>overlapping glCopyPixels with pixel zooming now works
 827 <li>glXUseXFont() bitmaps were vertically shifted by one pixel
 828 <li>glCopyPixels with pixel zooming now works
 829 </ul>
 830
 831
 832 <h2>3.2 final  April 24, 2000</h2>
 833 Bug fixes:
 834 <ul>
 835 <li>fixed memcpy bugs in span.c
 836 <li>fixed missing glEnd problem in demos/tessdemo.c
 837 <li>fixed bug when clearing 24bpp Ximages
 838 <li>fixed clipping problem found in Unreal Tournament
 839 <li>fixed Loki's "ice bug" and "crazy triangles" seen in Heretic2
 840 <li>fixed Loki's 3dfx RGB vs BGR bug
 841 <li>fixed Loki's 3dfx smooth/flat shading bug in SoF
 842 </ul>
 843 Changes:
 844 <ul>
 845 <li>updated docs/README file
 846 <li>use bcopy() optimizations on FreeBSD
 847 <li>re-enabled the optimized persp_textured_triangle() function
 848 </ul>
 849
 850
 851 <h2>3.2.1  July 19, 2000</h2>
 852 Bug fixes:
 853 <ul>
 854 <li>gluBuild2DMipmaps() didn't accept GL_BGRA
 855 <li>Fixed compile/makefile problems on IRIX
 856 <li>fixed segfault in 3dfx driver when using GL selection/feedback
 857 <li>no longer cull very, very tiny triangles
 858 <li>blending w/ drawbuffer==GL_FRONT_BACK caused segfault (sw rendering)
 859 <li>fixed Motif detection code in widgets-mesa/configure.in
 860 <li>glColorMaterial and glMaterial updates to emissive and ambient
 861           didn't always work right
 862 <li>Specular highlights weren't always in the right place
 863 <li>clipped GL_LINE mode polygons had interior lines appear
 864 <li>blend term GL_ONE_MINUS_CONSTANT_ALPHA was broken
 865 <li>GL_NICEST fog didn't always work with flat shading
 866 <li>glRect commands in display lists were sometimes miscolored
 867 <li>Line Z offset didn't always work
 868 <li>fixed texgen normal vector problem (gloss's teapot)
 869 <li>numerous GL conformance bugs fixed
 870 </ul>
 871 Changes:
 872 <ul>
 873 <li>glColorMask(false, false, false, false) handled better/faster
 874 <li>reverted to old GLU polygon tessellator, GLU 1.1
 875 <li>updated Win32 build files
 876 </ul>
 877
 878
 879 <h2>3.3  July 21, 2000</h2>
 880 New:
 881 <ul>
 882 <li>antialiased triangles now implemented
 883 <li>GL_EXT_texture_env_add texture mode extension
 884 <li>GLX 1.3 API
 885 <li>support for separate draw/read buffers (ie GL_SGI_make_current_read)
 886 <li>thread-safe API dispath
 887 <li>improved glxinfo program
 888 <li>demos/texdown program to measure texture download performance
 889 <li>glext.h header file
 890 <li>demos/geartrain program
 891 <li>GL_EXT_texture_lod_bias extension
 892 <li>demos/lodbias program
 893 <li>further optimized glRead/DrawPixels for 16-bit TrueColor X visuals
 894 <li>GLX_EXT_visual_rating extension (a no-op, however)
 895 <li>GL_HP_occlusion_test extension (for X and OS/Mesa drivers)
 896 <li>demos/occlude program
 897 <li>GL_SGIS_pixel_texture and GL_SGIX_pixel_texture extensions
 898 <li>demos/pixeltex program
 899 <li>GL_SGI_color_matrix extension
 900 <li>GL_SGI_color_table extension
 901 <li>GL_EXT_histogram extension
 902 <li>GL_ARB_texture_cube_map extension
 903 <li>added xdemos/glxheads and xdemos/manywin
 904 <li>demos/texenv.c demo
 905 <li>GL_EXT_texture_env_combine extension (by Holger Waechtler)
 906 <li>Xlib driver is now thread-safe (see xdemos/glthreads)
 907 </ul>
 908 Bug Fixes:
 909 <ul>
 910 <li>various GL conformance failures fixed since 3.2.1
 911 </ul>
 912 Changes:
 913 <ul>
 914 <li>gl.h now uses #defines instead of C enums for all tokens
 915 <li>glu.h now uses #defines instead of C enums for all tokens
 916 <li>moved programs from 3Dfx/demos/ into demos/ directory
 917 </ul>
 918
 919
 920 <h2>3.4  November 3, 2000</h2>
 921 New:
 922 <ul>
 923 <li>optimized glDrawPixels for glPixelZoom(1,-1)
 924 Bug Fixes:
 925 <li>widgets-mesa/src/*.c files were missing from 3.3 distro
 926 <li>include/GL/mesa_wgl.h file was missing from 3.3 distro
 927 <li>fixed some Win32 compile problems
 928 <li>texture object priorities weren't getting initialized to 1.0
 929 <li>glAreTexturesResident return value was wrong when using hardware
 930 <li>glXUseXFont segfaulted when using 3dfx driver (via MESA_GLX_FX)
 931 <li>glReadPixels with GLushort packed types was broken
 932 <li>fixed a few bugs in the GL_EXT_texture_env_combine texture code
 933 <li>glPush/PopAttrib(GL_ENABLE_BIT) mishandled multi-texture enables
 934 <li>fixed some typos/bugs in the VB code
 935 <li>glDrawPixels(GL_COLOR_INDEX) to RGB window didn't work
 936 <li>optimized glDrawPixels paths weren't being used
 937 <li>per-fragment fog calculation didn't work without a Z buffer
 938 <li>improved blending accuracy, fixes Glean blendFunc test failures
 939 <li>glPixelStore(GL_PACK/UNPACK_SKIP_IMAGES) wasn't handled correctly
 940 <li>glXGetProcAddressARB() didn't always return the right address
 941 <li>gluBuild[12]DMipmaps() didn't grok the GL_BGR pixel format
 942 <li>texture matrix changes weren't always detected (GLUT projtex demo)
 943 <li>fixed random color problem in vertex fog code
 944 <li>fixed Glide-related bug that let Quake get a 24-bit Z buffer
 945 </ul>
 946 Changes:
 947 <ul>
 948 <li>finished internal support for compressed textures for DRI
 949 </ul>
 950
 951
 952 <h2>3.4.1  February 14, 2001</h2>
 953 New:
 954 <ul>
 955 <li>fixed some Linux build problems
 956 <li>fixed some Windows build problems
 957 <li>GL_EXT_texture_env_dot3 extension (Gareth Hughes)
 958 </ul>
 959 Bug fixes:
 960 <ul>
 961 <li>added RENDER_START/RENDER_FINISH macros for glCopyTexImage in DRI
 962 <li>various state-update code changes needed for DRI bugs
 963 <li>disabled pixel transfer ops in glColorTable commands, not needed
 964 <li>fixed bugs in glCopyConvolutionFilter1D/2D, glGetConvolutionFilter
 965 <li>updated sources and fixed compile problems in widgets-mesa/
 966 <li>GLX_PBUFFER enum value was wrong in glx.h
 967 <li>fixed a glColorMaterial lighting bug
 968 <li>fixed bad args to Read/WriteStencilSpan in h/w stencil clear function
 969 <li>glXCopySubBufferMESA() Y position was off by one
 970 <li>Error checking of glTexSubImage3D() was broken (bug 128775)
 971 <li>glPopAttrib() didn't restore all derived Mesa state correctly
 972 <li>Better glReadPixels accuracy for 16bpp color - fixes lots of OpenGL
 973           conformance problems at 16bpp.
 974 <li>clearing depth buffer with scissoring was broken, would segfault
 975 <li>OSMesaGetDepthBuffer() returned bad bytesPerValue value
 976 <li>fixed a line clipping bug (reported by Craig McDaniel)
 977 <li>fixed RGB color over/underflow bug for very tiny triangles
 978 </ul>
 979 Known problems:
 980 <ul>
 981 <li>NURBS or evaluator surfaces inside display lists don't always work
 982 </ul>
 983
 984
 985 <h2>3.4.2  May 17, 2001</h2>
 986 Bug fixes:
 987 <ul>
 988 <li>deleting the currently bound texture could cause bad problems
 989 <li>using fog could result in random vertex alpha values
 990 <li>AA triangle rendering could touch pixels outside right window bound
 991 <li>fixed byteswapping problem in clear_32bit_ximage() function
 992 <li>fixed bugs in wglUseFontBitmapsA(), by Frank Warmerdam
 993 <li>fixed memory leak in glXUseXFont()
 994 <li>fragment sampling in AA triangle function was off by 1/2 pixel
 995 <li>Windows: reading pixels from framebuffer didn't always work
 996 <li>glConvolutionFilter2D could segfault or cause FP exception
 997 <li>fixed segfaults in FX and X drivers when using tex unit 1 but not 0
 998 <li>GL_NAND logicop didn't work right in RGBA mode
 999 <li>fixed a memory corruption bug in vertex buffer reset code
1000 <li>clearing the softwara alpha buffer with scissoring was broken
1001 <li>fixed a few color index mode fog bugs
1002 <li>fixed some bad assertions in color index mode
1003 <li>fixed FX line 'stipple' bug #420091
1004 <li>fixed stencil buffer clear width/height typo
1005 <li>fixed GL error glitches in gl[Client]ActiveTextureARB()
1006 <li>fixed Windows compilation problem in texutil.c
1007 <li>fixed 1/8-pixel AA triangle sampling error
1008 </ul>
1009 Changes:
1010 <ul>
1011 <li>optimized writing mono-colored pixel spans to X pixmaps
1012 <li>increased max viewport size to 2048 x 2048
1013 </ul>
1014
1015
1016 <h2>3.5  June 21, 2001</h2>
1017 New:
1018 <ul>
1019 <li>internals of Mesa divided into modular pieces (Keith Whitwell)
1020 <li>100% OpenGL 1.2 conformance (passes all conformance tests)
1021 <li>new AA line algorithm
1022 <li>GL_EXT_convolution extension
1023 <li>GL_ARB_imaging subset
1024 <li>OSMesaCreateContextExt() function
1025 <li>GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add)
1026 <li>GL_MAX_TEXTURE_UNITS_ARB now defaults to eight
1027 <li>GL_EXT_fog_coord extension (Keith Whitwell)
1028 <li>GL_EXT_secondary_color extension (Keith Whitwell)
1029 <li>GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add)
1030 <li>GL_SGIX_depth_texture extension
1031 <li>GL_SGIX_shadow and GL_SGIX_shadow_ambient extensions
1032 <li>demos/shadowtex.c demo of GL_SGIX_depth_texture and GL_SGIX_shadow
1033 <li>GL_ARB_texture_env_combine extension
1034 <li>GL_ARB_texture_env_dot3 extension
1035 <li>GL_ARB_texture_border_clamp (aka GL_SGIS_texture_border_clamp)
1036 <li>OSMesaCreateContextExt() function
1037 <li>libOSMesa.so library, contains the OSMesa driver interface
1038 <li>GL/glxext.h header file for GLX extensions
1039 <li>somewhat faster software texturing, fogging, depth testing
1040 <li>all color-index conformance tests now pass (only 8bpp tested)
1041 <li>SPARC assembly language TCL optimizations (David Miller)
1042 <li>GL_SGIS_generate_mipmap extension
1043 </ul>
1044 Bug Fixes:
1045 <ul>
1046 <li>fbiRev and tmuRev were unitialized when using Glide3
1047 <li>fixed a few color index mode conformance failures; all pass now
1048 <li>now appling antialiasing coverage to alpha after texturing
1049 <li>colors weren't getting clamped to [0,1] before color table lookup
1050 <li>fixed RISC alignment errors caused by COPY_4UBV macro
1051 <li>drawing wide, flat-shaded lines could cause a segfault
1052 <li>vertices now snapped to 1/16 pixel to fix rendering of tiny triangles
1053 </ul>
1054 Changes:
1055 <ul>
1056 <li>SGI's Sample Implementation (SI) 1.3 GLU library replaces Mesa GLU
1057 <li>new libOSMesa.so library, contains the OSMesa driver interface
1058 </ul>
1059
1060
1061 <h2>4.0  October 22, 2001</h2>
1062 New:
1063 <ul>
1064 <li>Mesa 4.0 implements the OpenGL 1.3 specification
1065 <li>GL_IBM_rasterpos_clip extension
1066 <li>GL_EXT_texture_edge_clamp extension (aka GL_SGIS_texture_edge_clamp)
1067 <li>GL_ARB_texture_mirrored_repeat extension
1068 <li>WindML UGL driver (Stephane Raimbault)
1069 <li>added OSMESA_MAX_WIDTH/HEIGHT queries
1070 <li>attempted compiliation fixes for Solaris 5, 7 and 8
1071 <li>updated glext.h and glxext.h files
1072 <li>updated Windows driver (Karl Schultz)
1073 </ul>
1074 Bug fixes:
1075 <ul>
1076 <li>added some missing GLX 1.3 tokens to include/GL/glx.h
1077 <li>GL_COLOR_MATRIX changes weren't recognized by teximage functions
1078 <li>glCopyPixels with scale and bias was broken
1079 <li>glRasterPos with lighting could segfault
1080 <li>glDeleteTextures could leave a dangling pointer
1081 <li>Proxy textures for cube maps didn't work
1082 <li>fixed a number of 16-bit color channel bugs
1083 <li>fixed a few minor memory leaks
1084 <li>GLX context sharing was broken in 3.5
1085 <li>fixed state-update bugs in glPopClientAttrib()
1086 <li>fixed glDrawRangeElements() bug
1087 <li>fixed a glPush/PopAttrib() bug related to texture binding
1088 <li>flat-shaded, textured lines were broken
1089 <li>fixed a dangling pointer problem in the XMesa code (Chris Burghart)
1090 <li>lighting didn't always produce the correct alpha value
1091 <li>fixed 3DNow! code to not read past end of arrays (Andrew Lewycky)
1092 </ul>
1093
1094
1095 <h2>4.0.1 December 17, 2001</h2>
1096 New:
1097 <ul>
1098 <li>better sub-pixel sample positions for AA triangles (Ray Tice)
1099 <li>slightly faster blending for (GL_ZERO, GL_ONE) and (GL_ONE, GL_ZERO)
1100 </ul>
1101 Bug fixes:
1102 <ul>
1103 <li>added missing break statements in glGet*() for multisample cases
1104 <li>fixed uninitialized hash table mutex bug (display lists / texobjs)
1105 <li>fixed bad teximage error check conditional (bug 476846)
1106 <li>fixed demos readtex.c compilation problem on Windows (Karl Schultz)
1107 <li>added missing glGet() query for GL_MAX_TEXTURE_LOD_BIAS_EXT
1108 <li>silence some compiler warnings (gcc 2.96)
1109 <li>enable the #define GL_VERSION_1_3 in GL/gl.h
1110 <li>added GL 1.3 and GLX 1.4 entries to gl_mangle.h and glx_mangle.h
1111 <li>fixed glu.h typedef problem found with MSDev 6.0
1112 <li>build libGL.so with -Bsymbolic (fixes bug found with Chromium)
1113 <li>added missing 'const' to glXGetContextIDEXT() in glxext.h
1114 <li>fixed a few glXGetProcAddress() errors (texture compression, etc)
1115 <li>fixed start index bug in compiled vertex arrays (Keith)
1116 <li>fixed compilation problems in src/SPARC/glapi_sparc.S
1117 <li>fixed triangle strip "parity" bug found in VTK medical1 demo (Keith)
1118 <li>use glXGetProcAddressARB in GLUT to avoid extension linking problems
1119 <li>provoking vertex of flat-shaded, color-index triangles was wrong
1120 <li>fixed a few display list bugs (GLUT walker, molecule, etc) (Keith)
1121 <li>glTexParameter didn't flush the vertex buffer (Ray Tice)
1122 <li>feedback attributes for glDraw/CopyPixels and glBitmap were wrong
1123 <li>fixed bug in normal length caching (ParaView lighting bug)
1124 <li>fixed separate_specular color bug found in Chimera (18 Dec 2001)
1125 </ul>
1126
1127
1128 <h2>4.0.2  April 2, 2002</h2>
1129 New:
1130 <ul>
1131 <li>New DOS (DJGPP) driver written by Daniel Borca
1132 <li>New driver interface functions for TCL drivers (such as Radeon DRI)
1133 <li>GL_RENDERER string returns "Mesa Offscreen16" or "Mesa Offscreen32"
1134           if using deep color channels
1135 <li>latest GL/glext.h and GL/glxext.h headers from SGI
1136 </ul>
1137 Bug fixes:
1138 <ul>
1139 <li>GL_BLEND with non-black texture env color wasn't always correct
1140 <li>GL_REPLACE with GL_RGB texture format wasn't always correct (alpha)
1141 <li>glTexEnviv( pname != GL_TEXTURE_ENV_COLOR ) was broken
1142 <li>glReadPixels was sometimes mistakenly clipped by the scissor box
1143 <li>glDraw/ReadPixels didn't catch all the errors that they should have
1144 <li>Fixed 24bpp rendering problem in Windows driver (Karl Schultz)
1145 <li>16-bit GLchan mode fixes (m_trans_tmp.h, s_triangle.c)
1146 <li>Fixed 1-bit float-&gt;int conversion bug in glDrawPixels(GL_DEPTH_COMP)
1147 <li>glColorMask as sometimes effecting glXSwapBuffers()
1148 <li>fixed a potential bug in XMesaGarbageCollect()
1149 <li>N threads rendering into one window didn't work reliably
1150 <li>glCopyPixels didn't work for deep color channels
1151 <li>improved 8 -&gt; 16bit/channel texture image conversion (Gerk Huisma)
1152 <li>glPopAttrib() didn't correctly restore user clip planes
1153 <li>user clip planes failed for some perspective projections (Chromium)
1154 </ul>
1155 Known bugs:
1156 <ul>
1157 <li>mipmap LOD computation
1158 </ul>
1159
1160
1161 <h2>4.0.3  June 25, 2002</h2>
1162 New:
1163 <ul>
1164 <li>updated GL/glext.h file (version 15)
1165 <li>corrected MMX blend code (Jose Fonseca)
1166 <li>support for software-based alpha planes in Windows driver
1167 <li>updated GGI driver (Filip Spacek)
1168 </ul>
1169 Bug fixes:
1170 <ul>
1171 <li>glext.h had wrong values for GL_DOT3_RGB[A]_EXT tokens
1172 <li>OSMesaMakeCurrent() didn't recognize buffer size changes
1173 <li>assorted conformance fixes for 16-bit/channel rendering
1174 <li>texcombine alpha subtraction mode was broken
1175 <li>fixed lighting bug with non-uniform scaling and display lists
1176 <li>fixed bug when deleting shared display lists
1177 <li>disabled SPARC cliptest assembly code (Mesa bug 544665)
1178 <li>fixed a couple Solaris compilation/link problems
1179 <li>blending clipped glDrawPixels didn't always work
1180 <li>glGetTexImage() didn't accept packed pixel types
1181 <li>glPixelMapu[is]v() could explode given too large of pixelmap
1182 <li>glGetTexParameter[if]v() didn't accept GL_TEXTURE_MAX_ANISOTROPY_EXT
1183 <li>glXCopyContext() could lead to segfaults
1184 <li>glCullFace(GL_FRONT_AND_BACK) didn't work (bug 572665)
1185 </ul>
1186 Changes:
1187 <ul>
1188 <li>lots of C++ (g++) code clean-ups
1189 <li>lots of T&amp;L updates for the Radeon DRI driver
1190 </ul>
1191 Known bugs:
1192 <ul>
1193 <li>mipmap LOD computation (fixed for Mesa 4.1)
1194 </ul>
1195
1196
1197 <h2>4.0.4  October 3, 2002</h2>
1198 New:
1199 <ul>
1200 <li>GL_NV_texture_rectangle extension
1201 <li>updated glext.h header (version 17)
1202 <li>updated DOS driver (Daniel Borca)
1203 <li>updated BeOS R5 driver (Philippe Houdoin)
1204 <li>added GL_IBM_texture_mirror_repeat
1205 <li>glxinfo now takes -l option to print interesting OpenGL limits info
1206 <li>GL_MESA_ycbcr_texture extension
1207 <li>GL_APPLE_client_storage extension (for some DRI drivers only)
1208 <li>GL_MESA_pack_invert extension
1209 </ul>
1210 Bug fixes:
1211 <ul>
1212 <li>fixed GL_LINEAR fog bug by adding clamping
1213 <li>fixed FP exceptions found using Alpha CPU
1214 <li>3dfx MESA_GLX_FX=window (render to window) didn't work
1215 <li>fixed memory leak in wglCreateContest (Karl Schultz)
1216 <li>define GLAPIENTRY and GLAPI if undefined in glu.h
1217 <li>wglGetProcAddress didn't handle all API functions
1218 <li>when testing for OpenGL 1.2 vs 1.3, check for GL_ARB_texture_cube_map
1219 <li>removed GL_MAX_CONVOLUTION_WIDTH/HEIGHT from glGetInteger/Float/etc()
1220 <li>error checking in compressed tex image functions had some glitches
1221 <li>fixed AIX compile problem in src/config.c
1222 <li>glGetTexImage was using pixel unpacking instead of packing params
1223 <li>auto-mipmap generation for cube maps was incorrect
1224 </ul>
1225 Changes:
1226 <ul>
1227 <li>max texture units reduced to six to accommodate texture rectangles
1228 <li>removed unfinished GL_MESA_sprite_point extension code
1229 </ul>
1230
1231
1232 <h2>4.1  October 29, 2002</h2>
1233 New:
1234 <ul>
1235 <li>GL_NV_vertex_program extension
1236 <li>GL_NV_vertex_program1_1 extension
1237 <li>GL_ARB_window_pos extension
1238 <li>GL_ARB_depth_texture extension
1239 <li>GL_ARB_shadow extension
1240 <li>GL_ARB_shadow_ambient extension
1241 <li>GL_EXT_shadow_funcs extension
1242 <li>GL_ARB_point_parameters extension
1243 <li>GL_ARB_texture_env_crossbar
1244 <li>GL_NV_point_sprite extension
1245 <li>GL_NV_texture_rectangle extension
1246 <li>GL_EXT_multi_draw_arrays extension
1247 <li>GL_EXT_stencil_two_side extension
1248 <li>GLX_SGIX_fbconfig and GLX_SGIX_pbuffer extensions
1249 <li>GL_ATI_texture_mirror_once extension (Ian Romanick)
1250 <li>massive overhaul/simplification of software rasterizer module,
1251           many contributions from Klaus Niederkrueger
1252 <li>faster software texturing in some cases (i.e. trilinear filtering)
1253 <li>new OSMesaGetProcAddress() function
1254 <li>more blend modes implemented with MMX code (Jose Fonseca)
1255 <li>added glutGetProcAddress() to GLUT
1256 <li>added GLUT_FPS env var to compute frames/second in glutSwapBuffers()
1257 <li>pbinfo and pbdemo PBuffer programs
1258 <li>glxinfo -v prints transprent pixel info (Gerd Sussner)
1259 </ul>
1260 Bug fixes:
1261 <ul>
1262 <li>better mipmap LOD computation (prevents excessive blurriness)
1263 <li>OSMesaMakeCurrent() didn't recognize buffer size changes
1264 <li>assorted conformance fixes for 16-bit/channel rendering
1265 <li>texcombine alpha subtraction mode was broken
1266 <li>fixed some blend problems when GLchan==GLfloat (Gerk Huisma)
1267 <li>clamp colors to [0,inf] in OSMesa if GLchan==GLfloat (Gerk Huisma)
1268 <li>fixed divide by zero error in NURBS tessellator (Jon Perry)
1269 <li>fixed GL_LINEAR fog bug by adding clamping
1270 <li>fixed FP exceptions found using Alpha CPU
1271 <li>3dfx/glide driver render-to-window feature was broken
1272 <li>added missing GLX_TRANSPARENT_RGB token to glx.h
1273 <li>fixed error checking related to paletted textures
1274 <li>fixed reference count error in glDeleteTextures (Randy Fayan)
1275 </ul>
1276 Changes:
1277 <ul>
1278 <li>New spec file and Python code to generate some GL dispatch files
1279 <li>Glide driver defaults to "no" with autoconf/automake
1280 <li>updated demos/stex3d with new options
1281 </ul>
1282
1283
1284 <h2>5.0  November 13, 2002</h2>
1285 New:
1286 <ul>
1287 <li>OpenGL 1.4 support (glGetString(GL_VERSION) returns "1.4")
1288 <li>removed some overlooked debugging code
1289 <li>glxinfo updated to support GLX_ARB_multisample
1290 <li>GLUT now support GLX_ARB_multisample
1291 <li>updated DOS driver (Daniel Borca)
1292 </ul>
1293 Bug fixes:
1294 <ul>
1295 <li>GL_POINT and GL_LINE-mode polygons didn't obey cull state
1296 <li>fixed potential bug in _mesa_align_malloc/calloc()
1297 <li>fixed missing triangle bug when running vertex programs
1298 <li>fixed a few HPUX compilation problems
1299 <li>FX (Glide) driver didn't compile
1300 <li>setting GL_TEXTURE_BORDER_COLOR with glTexParameteriv() didn't work
1301 <li>a few EXT functions, like glGenTexturesEXT, were no-ops
1302 <li>a few OpenGL 1.4 functions like glFogCoord*, glBlendFuncSeparate,
1303           glMultiDrawArrays and glMultiDrawElements were missing
1304 <li>glGet*(GL_ACTIVE_STENCIL_FACE_EXT) was broken
1305 <li>Pentium 4 Mobile was mistakenly identified as having 3DNow!
1306 <li>fixed one-bit error in point/line fragment Z calculation
1307 <li>fixed potential segfault in fakeglx code
1308 <li>fixed color overflow problem in DOT3 texture env mode
1309 </ul>
1310
1311
1312 <h2>5.0.1  March 30, 2003</h2>
1313 New:
1314 <ul>
1315 <li>DOS driver updates from Daniel Borca
1316 <li>updated GL/gl_mangle.h file (Bill Hoffman)
1317 Bug fixes:
1318 <li>auto mipmap generation for cube maps was broken (bug 641363)
1319 <li>writing/clearing software alpha channels was unreliable
1320 <li>minor compilation fixes for OS/2 (Evgeny Kotsuba)
1321 <li>fixed some bad assertions found with shadowtex demo
1322 <li>fixed error checking bug in glCopyTexSubImage2D (bug 659020)
1323 <li>glRotate(angle, -x, 0, 0) was incorrect (bug 659677)
1324 <li>fixed potential segfault in texture object validation (bug 659012)
1325 <li>fixed some bogus code in _mesa_test_os_sse_exception_support (Linus)
1326 <li>fix fog stride bug in tnl code for h/w drivers (Michel Danzer)
1327 <li>fixed glActiveTexture / glMatrixMode(GL_TEXTURE) bug (#669080)
1328 <li>glGet(GL_CURRENT_SECONDARY_COLOR) should return 4 values, not 3
1329 <li>fixed compilation problem on Solaris7/x86 (bug 536406)
1330 <li>fixed prefetch bug in 3DNow! code (Felix Kuhling)
1331 <li>fixed NeXT build problem (FABSF macro)
1332 <li>glDrawPixels Z values when glPixelZoom!=1 were invalid (bug 687811)
1333 <li>zoomed glDraw/CopyPixels with clipping sometimes failed (bug 689964)
1334 <li>AA line and triangle Z values are now rounded, not truncated
1335 <li>fixed color interpolation bug when GLchan==GLfloat (bug 694461)
1336 <li>glArePrograms/TexturesResident() wasn't 100% correct (Jose Fonseca)
1337 <li>fixed a minor GL_COLOR_MATERIAL bug
1338 <li>NV vertex program EXP instruction was broken
1339 <li>glColorMask misbehaved with X window / pixmap rendering
1340 <li>fix autoconf/libtool GLU C++ linker problem on Linux (a total hack)
1341 <li>attempt to fix GGI compilation problem when MesaDemos not present
1342 <li>NV vertex program ARL-relative fetches didn't work
1343 </ul>
1344 Changes:
1345 <ul>
1346 <li>use glPolygonOffset in gloss demo to avoid z-fighting artifacts
1347 <li>updated winpos and pointblast demos to use ARB extensions
1348 <li>disable SPARC normal transformation code (bug 673938)
1349 <li>GLU fixes for OS/2 (Evgeny Kotsuba)
1350 </ul>
1351
1352
1353 <h2>5.0.2  September 5, 2003</h2>
1354 Bug fixes:
1355 <ul>
1356 <li>fixed texgen problem causing texcoord's Q to be zero (stex3d)
1357 <li>default GL_TEXTURE_COMPARE_MODE_ARB was wrong
1358 <li>GL_CURRENT_MATRIX_NV query was wrong
1359 <li>GL_CURRENT_MATRIX_STACK_DEPTH_NV query was off by one
1360 <li>GL_LIST_MODE query wasn't correct
1361 <li>GL_FOG_COORDINATE_SOURCE_EXT query wasn't supported
1362 <li>GL_SECONDARY_COLOR_ARRAY_SIZE_EXT query returned wrong value
1363 <li>blended, wide lines didn't always work correctly (bug 711595)
1364 <li>glVertexAttrib4svNV w component was always 1
1365 <li>fixed bug in GL_IBM_rasterpos_clip (missing return)
1366 <li>GL_DEPTH_TEXTURE_MODE = GL_ALPHA didn't work correctly
1367 <li>a few Solaris compilation fixes
1368 <li>fixed glClear() problem for DRI drivers (non-existant stencil, etc)
1369 <li>fixed int/REAL mixup in GLU NURBS curve evaluator (Eric Cazeaux)
1370 <li>fixed delete [] bug in SI GLU (bug 721765) (Diego Santa Cruz)
1371 <li>glFog() didn't clamp fog colors
1372 <li>fixed bad float/int conversion for GL_TEXTURE_PRIORITY in the
1373           gl[Get]TexParameteri[v] functions
1374 <li>fixed invalid memory references in glTexGen functions (bug 781602)
1375 <li>integer-valued color arrays weren't handled correctly
1376 <li>glDrawPixels(GL_DEPTH_COMPONENT) with glPixelZoom didn't work
1377 <li>GL_EXT_texture_lod_bias is part of 1.4, overlooked in 5.0.1
1378 </ul>
1379 Changes:
1380 <ul>
1381 <li>build GLUT with -fexceptions so C++ apps propogate exceptions
1382 </ul>
1383
1384
1385 <h2>5.1  December 17, 2003</h2>
1386 New:
1387 <ul>
1388 <li>reorganized directory tree
1389 <li>GL_ARB_vertex/fragment_program extensions (Michal Krol &amp; Karl Rasche)
1390 <li>GL_ATI_texture_env_combine3 extension (Ian Romanick)
1391 <li>GL_SGI_texture_color_table extension (Eric Plante)
1392 <li>GL_NV_fragment_program extension
1393 <li>GL_NV_light_max_exponent extension
1394 <li>GL_EXT_texture_rectangle (identical to GL_NV_texture_rectangle)
1395 <li>GL_ARB_occlusion_query extension
1396 <li>GL_ARB_point_sprite extension
1397 <li>GL_ARB_texture_non_power_of_two extension
1398 <li>GL_IBM_multimode_draw_arrays extension
1399 <li>GL_EXT_texture_mirror_clamp extension (Ian Romanick)
1400 <li>GL_ARB_vertex_buffer_object extension
1401 <li>new X86 feature detection code (Petr Sebor)
1402 <li>less memory used for display lists and vertex buffers
1403 <li>demo of per-pixel lighting with a fragment program (demos/fplight.c)
1404 <li>new version (18) of glext.h header
1405 <li>new spriteblast.c demo of GL_ARB_point_sprite
1406 <li>faster glDrawPixels in X11 driver in some cases (see relnotes/5.1)
1407 <li>faster glCopyPixels in X11 driver in some cases (see relnotes/5.1)
1408 </ul>
1409 Bug fixes:
1410 <ul>
1411 <li>really enable OpenGL 1.4 features in DOS driver.
1412 <li>fixed issues in glDrawPixels and glCopyPixels for very wide images
1413 <li>glPixelMapf/ui/usv()'s size parameter is GLsizei, not GLint
1414 <li>fixed some texgen bugs reported by Daniel Borca
1415 <li>fixed wglMakeCurrent(NULL, NULL) bug (#835861)
1416 <li>fixed glTexSubImage3D z-offset bug (Cedric Gautier)
1417 <li>fixed RGBA blend enable bug (Ville Syrjala)
1418 <li>glAccum is supposed to be a no-op in selection/feedback mode
1419 <li>fixed texgen bug #597589 (John Popplewell)
1420 </ul>
1421 Changes:
1422 <ul>
1423 <li>dropped API trace feature (src/Trace/)
1424 <li>documentation overhaul.  merged with website content.  more html.
1425 <li>glxgears.c demo updated to use GLX swap rate extensions
1426 <li>glTexImage1/2/3D now allows width/height/depth = 0
1427 <li>disable SPARC asm code on Linux (bug 852204)
1428 </ul>
1429
1430
1431 <h2>6.0  January 16, 2004</h2>
1432 New:
1433 <ul>
1434 <li>full OpenGL 1.5 support
1435 <li>updated GL/glext.h file to version 21
1436 Changes:
1437 <li>changed max framebuffer size to 4Kx4K (MAX_WIDTH/HEIGHT in config.h)
1438 Bug fixes:
1439 <li>fixed bug in UNCLAMPED_FLOAT_TO_UBYTE macro; solves a color
1440           clamping issue
1441 <li>updated suno5-gcc configs
1442 <li>glColor3 functions sometimes resulted in undefined alpha values
1443 <li>fixed FP divide by zero error seen on VMS with xlockmore, others
1444 <li>fixed vertex/fragment program debug problem (bug 873011)
1445 <li>building on AIX with gcc works now
1446 <li>glDeleteProgramsARB failed for ARB fragment programs (bug 876160)
1447 <li>glDrawRangeElements tried to modify potentially read-only storage
1448 <li>updated files for building on Windows
1449 </ul>
1450
1451
1452 <h2>6.0.1  April 2, 2004</h2>
1453 New:
1454 <ul>
1455 <li>upgraded glext.h to version 22
1456 <li>new build targets (Dan Schikore)
1457 <li>new linux-x86-opteron build target (Heath Feather)
1458 </ul>
1459 Bug fixes:
1460 <ul>
1461 <li>glBindProgramARB didn't update all necessary state
1462 <li>fixed build problems on OpenBSD
1463 <li>omit CVS directories from tarballs
1464 <li>glGetTexImage(GL_COLOR_INDEX) was broken
1465 <li>fixed an infinite loop in t&amp;l module
1466 <li>silenced some valgrind warnings about using unitialized memory
1467 <li>fixed some compilation/link glitches on IRIX (Mike Stephens)
1468 <li>glBindProgram wasn't getting compiled into display lists
1469 <li>GLX_FBCONFIG_ID wasn't recognized in glXChooseFBConfig() (bug 888079)
1470 <li>two-sided lighting and vertex program didn't work (bug 887330)
1471 <li>stores to program parameter registers in vertex state programs
1472           didn't work.
1473 <li>fixed glOrtho bug found with gcc 3.2.2 (RH9)
1474 <li>glXCreateWindow() wasn't fully implemented (bug 890894)
1475 <li>generic vertex attribute arrays didn't work in display lists
1476 <li>vertex buffer objects' default usage and access fields were wrong
1477 <li>glDrawArrays with start!=0 was broken
1478 <li>fragment program PK2H, UP2H, UP4B and UP4UB instructions were broken
1479 <li>linux-osmesa16-static config didn't work
1480 <li>fixed a few color index rendering problems (bug 910687)
1481 <li>glInterleavedArrays didn't respect GL_CLIENT_ACTIVE_TEXTURE
1482 <li>OSMesa RGB and BGR modes were broken
1483 <li>glProgramStringARB mistakenly required a null-terminated string
1484 <li>fragment program XPD instruction was incorrect
1485 <li>glGetMaterial() didn't work reliably
1486 <li>ARB_fragment_program KIL instruction was incorrect
1487 </ul>
1488
1489
1490 <h2>6.1  August 18, 2004</h2>
1491 New:
1492 <ul>
1493 <li>Revamped Makefile system
1494 <li>glXUseRotatedXFont() utility (see xdemos/xuserotfont.c)
1495 <li>internal driver interface changes related to texture object
1496           allocation, vertex/fragment programs, BlendEquationSeparate, etc.
1497 <li>option to walk triangle edges with double-precision floats
1498           (Justin Novosad of Discreet) (see config.h file)
1499 <li>support for AUX buffers in software GLX driver
1500 <li>updated glext.h to version 24 and glxext.h to version 6
1501 <li>new MESA_GLX_FORCE_ALPHA and MESA_GLX_DEPTH_BITS env vars
1502 <li>updated BeOS support (Philippe Houdoin)
1503 </ul>
1504 Changes:
1505 <ul>
1506 <li>fragment fog interpolation is perspective corrected now
1507 <li>new glTexImage code, much cleaner, may be a bit faster
1508 </ul>
1509 Bug fixes:
1510 <ul>
1511 <li>glArrayElement in display lists didn't handle generic vertex attribs
1512 <li>glFogCoord didn't always work properly
1513 <li>ARB_fragment_program fog options didn't work
1514 <li>frag prog TEX instruction no longer incorrectly divides s,t,r by q
1515 <li>ARB frag prog TEX and TEXP instructions now use LOD=0
1516 <li>glTexEnviv in display lists didn't work
1517 <li>glRasterPos didn't do texgen or apply texture matrix
1518 <li>GL_DOUBLE-valued vertex arrays were broken in some cases
1519 <li>fixed texture rectangle edge/border sampling bugs
1520 <li>sampling an incomplete texture in a fragment program would segfault
1521 <li>glTexImage was missing a few error checks
1522 <li>fixed some minor glGetTexParameter glitches
1523 <li>GL_INTENSITY was mistakenly accepted as a &lt;format&gt; to glTexImage
1524 <li>fragment program writes to RC/HC register were broken
1525 <li>fixed a few glitches in GL_HP_occlusion_test extension
1526 <li>glBeginQueryARB and glEndQueryARB didn't work inside display lists
1527 <li>vertex program state references were broken
1528 <li>fixed triangle color interpolation bug on AIX (Shane Blackett)
1529 <li>fixed a number of minor memory leaks (bug #1002030)
1530 </ul>
1531
1532
1533 <h2>6.2  October 2, 2004</h2>
1534 New:
1535 <ul>
1536 <li>enabled GL_ARB_texture_rectangle (same as GL_NV_texture_rectangle)
1537 <li>updated Doxygen support (Jose Fonseca)
1538 </ul>
1539 Changes:
1540 <ul>
1541 <li>some GGI driver updates (Christoph Egger, bug 1025977)
1542 </ul>
1543 Bug fixes:
1544 <ul>
1545 <li>Omit GL_ARB_texture_non_power_of_two from list of OpenGL 1.5 features
1546 <li>fixed a few compilation issues on IRIX
1547 <li>fixed a matrix classification bug (reported by Wes Bethel)
1548 <li>we weren't reseting the vertex/fragment program error state
1549           before parsing (Dave Reveman)
1550 <li>adjust texcoords for sampling texture rectangles (Dave Reveman)
1551 <li>glGet*(GL_MAX_VERTEX_ATTRIBS_ARB) wasn't implemented
1552 <li>repeated calls to glDeleteTexture(t) could lead to a crash
1553 <li>fixed potential ref count bugs in VBOs and vertex/fragment programs
1554 <li>spriteblast demo didn't handle window size changes correctly
1555 <li>glTexSubImage didn't handle pixels=NULL correctly for PBOs
1556 <li>fixed color index mode glDrawPixels bug (Karl Schultz)
1557 </ul>
1558
1559
1560 <h2>6.2.1  December 9, 2004</h2>
1561 Bug fixes:
1562 <ul>
1563 <li>don't apply regular fog or color sum when using a fragment program
1564 <li>glProgramEnvParameter4fARB always generated an error on
1565           GL_FRAGMENT_PROGRAM_ARB (fdo bug 1645)
1566 <li>glVertexAttrib3svNV and glVertexAttrib3svARB were broken
1567 <li>fixed width/height mix-up in glSeparableFilter2D()
1568 <li>fixed regression in glCopyPixels + convolution
1569 <li>glReadPixels from a clipped front color buffer didn't always work
1570 <li>glTexImage didn't accept GL_RED/GREEN/BLUE as the format
1571 <li>Attempting queries/accesses of VBO 0 weren't detected as errors
1572 <li>paletted textures failed if the palette had fewer than 256 entries
1573 </ul>
1574 Changes:
1575 <ul>
1576 <li>fixed a bunch of compiler warnings found with gcc 3.4
1577 <li>bug reports should to go bugzilla.freedesktop.org
1578 </ul>
1579
1580
1581 <h2>6.3  July 20, 2005</h2>
1582 New:
1583 <ul>
1584 <li>GL_EXT_framebuffer_object extension
1585 <li>GL_ARB_draw_buffers extension
1586 <li>GL_ARB_pixel_buffer_object extension
1587 <li>GL_OES_read_format extension (Ian Romanick)
1588 <li>DirectFB driver (Claudio Ciccani)
1589 <li>x86_64 vertex transformation code (Mikko T.)
1590 <li>Updated GL/glext.h to version 29
1591 </ul>
1592 Changes:
1593 <ul>
1594 <li>added -stereo option for glxgears demo (Jacek Rosik)
1595 <li>updated the PBuffer demo code in xdemos/ directory
1596 <li>glDeleteTextures/Programs/Buffers() now makes the object ID
1597         available for immediate re-use
1598 <li>assorted 64-bit clean-ups fixes (x86_64 and Win64)
1599 <li>lots of internal changes for GL_EXT_framebuffer_object
1600 </ul>
1601 Bug fixes:
1602 <ul>
1603 <li>some functions didn't support PBO functionality
1604 <li>glGetTexImage didn't convert color index images to RGBA as required
1605 <li>fragment program texcoords were sometimes wrong for points and lines
1606 <li>fixed problem with negative dot product in arbfplight, fplight demos
1607 <li>fixed bug in perspective correction of antialiased, textured lines
1608 <li>querying GL_POST_CONVOLUTION_ALPHA_BIAS_EXT returned wrong value
1609 <li>fixed a couple per-pixel fog bugs (Soju Matsumoto)
1610 <li>glGetBooleanv(GL_FRAGMENT_PROGRAM_BINDING_NV) was broken
1611 <li>fixed float parsing bug in ARB frag/vert programs (bug 2520)
1612 <li>XMesaGetDepthBuffer() returned incorrect value for bytesPerValue
1613 <li>GL_COLOR_MATERIAL with glColor3 didn't properly set diffuse alpha
1614 <li>glXChooseFBConfig() crashed if attribList pointer was NULL
1615 <li>program state.light[n].spot.direction.w was wrong value (bug 3083)
1616 <li>fragment program fog option required glEnable(GL_FOG) - wrong.
1617 <li>glColorTable() could produce a Mesa implementation error (bug 3135)
1618 <li>RasterPos could get corrupted by color index rendering path
1619 <li>Removed bad XTranslateCoordinates call when rendering to Pixmaps
1620 <li>glPopAttrib() didn't properly restore GL_TEXTURE_GEN enable state
1621 <li>fixed a few Darwin compilation problems
1622 </ul>
1623
1624
1625 <h2>6.3.1</h2>
1626 <p>
1627 This was an intermediate release for X.org which wasn't otherwise released.)
1628 </p>
1629
1630
1631 <h2>6.3.2  August 19, 2005</h2>
1632 New:
1633 <ul>
1634 <li>The distribution now includes the DRI drivers and GLX code
1635 </ul>
1636 Changes:
1637 <ul>
1638 <li>Made the DRI "new" driver interface standard, remove old code
1639 </ul>
1640 Bug fixes:
1641 <ul>
1642 <li>GL_ARB_vertex/fragment_shader were mistakenly listed in the
1643           extensions string
1644 <li>negative relative addressing in vertex programs was broken
1645 <li>update/fix SPARC assembly code for vertex transformation
1646 <li>fixed memory leak when freeing GLX drawables/renderbuffers
1647 <li>fixed display list memory leak
1648 <li>the GL_PIXEL_MAP_I_TO_I table is now floating point, not integer
1649 <li>wglGetProcAddress() didn't handle wgl-functions
1650 <li>fixed glxext.h cross-compile issue (Colin Harrison)
1651 <li>assorted DRI driver fixes
1652 </ul>
1653
1654
1655 <b>
1656 NOTE: Changes for Mesa 6.4 and later are documented in the corresponding
1657 <a href="relnotes.html">release notes</a> file.
1658 </b>
1659
1660 </div>
1661 </body>
1662 </html>