$Id: VERSIONS,v 1.60 2001/06/20 19:02:48 brianp Exp $ Mesa Version History ==================== 1.0 beta February 1995 Initial release 1.1 beta March 4, 1995 Changes: faster point and line drawing (2x faster) more systems supported, better Makefiles Renamed lib*.a files to avoid collisions many small bug fixes New: pseudo-GLX functions added new implementation of evaluators (eval2.c) GLUT support 1.1.1 beta March 7, 1995 Changes: Reverted from eval2.c to eval.c due to FPE on Linux more speed improvements more Makefile changes 1.1.2 beta March 14, 1995 New: implementation of SGI's blending extensions glXUseXFont implemented added MESA_DEBUG environment variable support Changes: Using eval2.c again more FPE-prevention checks (0-length normals are OK) a few small bug fixes much faster pixel logic ops! faster transformation arithmetic 1.1.3 beta March 31, 1995 New: gluScaleImage() and gluBuild2DMipMaps() implemented Mesa widgets for Xt/Motif blendEXT demos added environment variables for selecting visuals Changes: almost all GLUT demos work correctly now faster X device driver functions more bug fixes 1.1.4 beta April 20, 1995 Bug fixes: - missing #define SEEK_SET in src-tk/image.c - compile glShadeModel into display lists - fixed pow() domain error in src/light.c - fixed "flickering bitmaps" in double buffer mode - fixed tk.h and aux.h for C++ - state of LIGHT_MODEL_LOCAL_VIEWER was inverted New features: - MUCH, MUCH nicer dithering in 8-bit RGB mode - updated widgets and widget demos - Implemented GLXPixmap functions - Added GLU 1.1 and GLX 1.1 functions - Changed the X/Mesa interface API, more versatile - Implemented gluPartialDisk() 1.2 May 22, 1995 Bug fixes: - IRIX 4.x makefile problem - modified tk to share root colormap as needed - gluLookAt normalization problem - suppress Expose, NoExpose events in swapbuffers - glBitmap() and glDrawPixels() clipping New features: - GL_BLEND, GL_MODULATE, GL_DECAL, and GL_REPLACE_EXT texture modes implemented - texture maps stored more efficiently - texture maps can be compiled into display lists - Bogdan Sikorski's GLU polygon tesselation code - Linas Vepstas's sweep and extrusion library - glXCreateContext()'s shareList parameter works as it's supposed to. XMesaCreateContext() updated to accept a shareList parameter too. - Mesa can be compiled with real OpenGL .h files - MESA_BACK_BUFFER environment variable - better GLX error checking 1.2.1 June 22, 1995 Bug fixes: - X/Mesa double buffer window resize crash - widgets now pass PointerMotion events - X/Mesa incorrect default clear color and drawing color - more robust X MIT-SHM support in X/Mesa - glTexImage( format=GL_LUMINANCE ) didn't work - GL_LINE mode polygons with line width > 1.0 could cause a crash - numerous feedback bugs - glReadPixels() from depth buffer was wrong - error prone depth and stencil buffer allocation New features: - Preliminary Microsoft Windows driver - Implemented a number of missing functions: glEvalCoord[12][df]v(), glGet...(), etc. - Added a few missing symbols to gl.h and glu.h - Faster rendering of smooth-shaded, RGBA, depth-buffered polygons. - Faster rendering of lines when width=2.0 - Stencil-related functions now work in display lists Changes: - renamed aux.h as glaux.h (MS-DOS names can't start with aux) - most filenames are in 8.3 format to accomodate MS-DOS - use GLubytes to store arrays of colors instead of GLints 1.2.2 August 2, 1995 New features: - texture mapped points and lines - NURBS! (but not 100% complete) - viewports may safely extend beyond window boundaries - MESA_PRIVATE_CMAP environment variable - Grayscale X display support - two new demos: demos/gears.c and demos/shadow.c - MachTen for Macintosh configuration Bug fixes: - glGet*(GL_DEPTH_BITS) returned bytes, not bits - point, line, and bitmap rasterization suffered from roundoff errors - fixed a division by zero error in line clippping - occasional wrong default background color really fixed! - glDepthFunc(GL_ALWAYS) with glDepthMask(GL_FALSE) didn't work - gluBuild2DMipmaps malloc problem fixed - view volume clipping of smooth shaded lines resulted in bad colors Changes: - new visual selection method in glXChooseVisual() - improved GLU quadric functions - call XSync for glFinish and XFlush for glFlush - glVertex() calls now use a function pointer to avoid conditionals - removed contrib directory from Mesa tar file (available on ftp site) - AIX shared library support - Removed GLUenum type as it's not in OpenGL 1.2.3 September 26, 1995 New features: - Mesa header files now equivalent to SGI OpenGL headers - Support for HP's Color Recovery dithering displays - Faster vertex transformation - Faster raster operations into X windows under certain conditions - New configurations: HP w/ shared libs, Ultrix w/ GCC, Data General - 4-bit visuals now supported Bug fixes: - glScissor bug fixed - round-off errors in clipping lines against clip planes fixed - byte swapping between hosts and display servers implemented - glGetError() can be called without a current rendering context - problem with accidentally culled polygons is fixed - fixed some widget compilation problems 1.2.4 November 17, 1995 New features: - More speed improvements (lighting, fogging, polygon drawing) - Window system and OS-independent off-screen rendering - Preliminary Fortran bindings - glPolygonOffsetEXT implemented - glColorMask and glIndexMask now fully implemented - glPixelZoom implemented - display lists fully implemented - gamma correction - dithering in 8-bit TrueColor/DirectColor visuals Changes: - Improved device driver interface - tk.h renamed to gltk.h to avoid conflicts with Tcl's Tk - Dithering support moved from core into device driver Bug fixes: - glEnable/Disable( GL_LIGHTING ) didn't always take effect - glReadPixels byte swapping was broken - glMaterial with pname==GL_AMBIENT_AND_DIFFUSE was broken - duplicate glColor4b() prototype in GL/gl.h removed - stripes in wave -ci demo fixed - GL_LINEAR_MIPMAP_NEAREST had wrong value - bugs in HP Color Recovery support fixed - fixed bug when blending lines, points, bitmaps outside of window 1.2.5 November 30, 1995 New Features: - updated MS Windows driver - new implementation of StaticGray/GrayScale visual support Bug fixes: - pixelzooming with gamma correction or blending didn't work - HP color recovery visual wasn't being picked by glXChooseVisual - glClear didn't always observe glColorMask changes - olympic and offset demos didn't compile on some Suns - texcoord clamping wasn't correct - a polygon optimization introduced an occasional sampling problem 1.2.6 January 26, 1996 New Features: - faster line and polygon rendering under certain conditions. See Performance Tips 9 and 10 in README - profiling - lighting is a bit faster - better perspective corrected texture mapping - Amiga AmiWin (X11) support - preliminary Linux SVGA driver Changes: - now using a 16-bit depth buffer, faster, smaller - GL_NORMALIZE is disabled by default Bug fixes: - projective texture mapping - fixed a memory leak in the context destroy function - GL_POLYGON with less than 3 vertices caused a crash - glGet*() returned wrong result for GL_INDEX_MODE - reading pixels from an unmapped X window caused a BadMatch error 1.2.7 March 5, 1996 New: - faster lighting - faster 16-bit TrueColor rendering on Linux - faster 32-bit TrueColor rendering on Linux, HP, IBM - non-depth-buffered XImage polygons are faster - vertex array extension - software alpha planes - updated Macintosh driver - new NeXT driver - GLU quadric functions generate texture coordinates - reflect.c demo - reflective, textured surface demo Changes: - gamma correction code moved into the X driver for better performance Bug fixes: - multiple glClipPlane()'s didn't work reliably - glPolygonMode() didn't always work - glCullFace( GL_FRONT_AND_BACK ) didn't work - texture mapping with gamma correction was buggy - floating point exceptions in texture coordinate interpolation - XImage byte swapping didn't always work - polygon edge flags weren't always used correctly 1.2.8 May 22, 1996 New: - overlay planes on X servers with the SERVER_OVERLAY_VISUALS property - better monochrome output - more IRIX 6.x configurations - more robust RGB mode color allocation - added MESA_XSYNC environment variable - GLX_MESA_pixmap_colormap and GLX_EXT_visual_info extensions - GL_MESA_window_pos extension - faster glReadPixels/glDrawPixels for GL_DEPTH and GL_UNSIGNED_SHORT and GL_UNSIGNED_INT - driver for prototype Cirrus Mondello 3-D board - updated AmigaDOS driver - a few small speed optimizations in polygon rendering Changes: - internal device driver interface modified to simplify device driver implementations and to support hardware Z buffers - several changes to the X/Mesa interface (xmesa.h) Bug fixes: - fixed pow(0,0) domain error triggered on some systems - glStencilClear() in a display list caused an infinite loop - glRasterPos*() was sometimes off by +/-0.5 in X and Y - color masking and blending were performed in wrong order - auxSolidCylinder() sometimes drew a wire-frame cylinder - fixed file writing bug in osdemo.c - pixel mapping didn't always work - the GL_GEQUAL stencil func didn't work - the GL_INVERT stencil op didn't work - the stencil write mask didn't work - glPush/PopAttrib() didn't do enough error checking - glIsList() didn't always work correctly 2.0 October 10, 1996 New: - Implements OpenGL 1.1 API functions - all texture filtering modes supported (mipmapping) - faster texture mapping, see Performance Tip 11 in README - antialiased RGB points - X support for line and polygon stippling - glDrawBuffer( GL_FRONT_AND_BACK ) works - util/ directory of useful stuff - demos/texobj demo of texture objects Changes: - major internal changes for thread-safeness - new device driver interface - MESA_ALPHA env variable removed - triangle rasterizer replaces polygon rasterizer Bug fixes: - glPopAttrib() bug - glDrawBuffer(GL_NONE) works now 2.1 December 14, 1996 New: - VMS support - MS-DOS driver - OpenStep support - updated, combined Windows 95/NT driver - implemented glGetLighti() and glGetTexGen*() - GLX does garbage collection of ancillary buffers Bug fixes: - removed unused _EXT constants from gl.h - fixed polygon offset bugs - Z coordinates of clipped lines were incorrect - glEdgeFlag() in display lists didn't always work - glLight*() in display lists didn't work - fixed X line stipple bugs (Michael Pichler) - glXUseXfonts XFreeFont/XFreeFontInfo bug fixed - fixed a feedback bug - glTexGen*() now transforms GL_EYE_PLANE by inverse modelview matrix - polygons were sometimes culled instead of clipped - triangle rasterizer suffered from float/int overflow exceptions - fixed FP underflow exception in lighting (specular exponent) - glEnable/glDisable of GL_EXT_vertex_array enums didn't work - fixed free(NULL) in GLU tesselator code - using 24-bit color on some X servers resulted in garbage rendering - 32-bit per pixel mode for XFree86 now works - glRotate(a,0,0,0) gave unpredictable results - GL_LINE_STRIP with > 480 vertices had occasional clipping problems - 8-bit TrueColor GLXPixmap rendering incorrectly required a colormap - glMaterial() wasn't ignored when GL_COLOR_MATERIAL was enabled - glEnable(GL_COLOR_MATERIAL) followed by glColor() didn't work right - accumulation buffer was limited to positive values - projective textures didn't work - selection buffer overflows weren't handled correctly Changes: - restored the GL_EXT_polygon_offset extension - slightly faster RGB dithering - the SVGA driver works again - Amiga driver now distributed separately - NeXT driver updated for Mesa 2.x 2.2 March 14, 1997 New: - better color selection when dithering - added GL_EXT_texture_object extension - updated MS-DOS driver for DJGPP - added openbsd make configuration - faster dithered flat-shaded triangles - various compilation problems with Motif widgets fixed - gl.h, glx.h and glu.h name mangling option - BeOS driver - 3D texture mapping extension - GL_MESA_resize_buffers extension - morph3d, stex3d and spectex demos - 3Dfx support Bug fixes: - glColorMaterial should finally work right in all respects - linear interpolation of mipmap levels was incorrectly weighted - readpix.c didn't compile on Macintosh - GL_INVERT and related logic ops didn't work right - glTexImage[12]D() didn't check its parameters consistantly - fixed a memory leak in glTexImage[12]D() - kludged around a SunOS 5.x/GCC compiler bug in the feedback code - glReadPixels aborted instead of normally catching some errors - a few 1.1 constants were missing or misnamed in gl.h - glBegin(p); glBegin(q); didn't generate an error - fixed a memory leak in GLX code - clipping of concave polygons could cause a core dump - 1-component alpha texture maps didn't work - fixed a GLU polygon tesselator bug - polygons with colinear vertices were sometimes culled - feedback triangle colors were wrong when using smooth shading - textures with borders didn't work correctly - colors returned in feedback mode were wrong when using lighting - spotlights didn't effect ambient lighting correctly - gluPartialDisk() had a few bugs Changes: - device driver interface expanded to support texture mapping - faster matrix inversion subroutine - commented out #include "wmesa_extend.h" from src/wmesa.c - fixed many compiler warnings in the demo programs 2.3 June 30, 1997 New: - Mesa distribution divided into two pieces: library code and demos - faster vertex transformation, clip testing, lighting - faster line drawing - TrueColor visuals how have dithering (for depths < 24 bits) - added MESA_NO_DITHER environment variable - new device driver function: NearFar(), RenderVB(), RasterSetup() - added LynxOS configuration - added cygnus Win32 configuration - added texcyl.c GLUT demo - added XMesaDitherColor() to X/Mesa interface - new NURBS code from Bogdan Sikorski - added demos/shape.c (non-rectangular X window!) Bug fixes: - glEnable/DisableClientState() were missing from GL/gl.h - GL_SPHERE_MAP texcoord generation didn't work correctly - glXGetConfig() returned wrong number of depth, stencil, accum bits - glDrawPixels feedback/selection didn't examine RasterPos valid bit - black and white were reversed on some monochrome displays - fixed potential image memory leak (wasn't setting reference counter) - glDrawPixels sometimes didn't recognize some GL state changes - gluProject/UnProject() didn't check for divide by zero - stex3d demo called random() and srandom(), not portable - fixed memory leaks in context.c and drawpix.c - fixed NULL dereferencing problem in gl_update_texture_state() - glReadPixels between glBegin/glEnd didn't generate an error. - fixed memory leak in polygon tesselator (Randy Frank) - fixed seg fault bug drawing flat-shaded, depth-tested lines - clipped GL_TRIANGLE_STRIPs sometimes had wrong color when flat-shaded - glBindTexture sometimes didn't work - fixed a bug deep in glXReleaseBuffersMESA() - fog was mistakenly applied to alpha - glPopMatrix didn't set "dirty matrix" flag - glPolygonStipple pattern was sometimes wrong - glClear wasn't disabled during feedback and selection - fixed memory leak in glTexSubImage[123]D Changes: - many library source files reorganized - faster X color allocation, colors also freed when finished with them - new texture sampling function pointer in texture objects - incorporated 3Dfx VooDoo driver v0.16 into main source tree - many 3Dfx driver updates - cygnus Makefiles now included - updated DOS driver - made a few changes to dosmesa.c and wmesa.c (VB->Unclipped) - internally, colors now stored in GLubytes, not GLfixed - optimized changing of GL_SHININESS parameter 2.4 September 18, 1997 New: - updated 3Dfx Glide driver - hacks for 3Dfx rendering into an X window or fullscreen - added depth buffer access functions to X/Mesa and OS/Mesa interfaces Bug fixes: - pixel buffer could overflow with long, wide lines - fixed FP underflow problems in lighting - glTexSubImage1D() had an unitialized variable - incomplete texture objects could cause a segfault - glDrawPixels with GL_COMPILE_AND_EXECUTE caused infinite loop - flat-shaded quads in a strip were miscolored if clipped - mipmapped triangle lod computation now works correctly - fixed a few under/overflow bugs in triangle rasterizer - glArrayElement() assigned bad normal if normal array disabled - changed argument to glXReleaseBuffersMESA() - fixed small triangle underflow bugs in tritemp.h (hopefully) - glBindTexture(target, 0) caused a crash - glTexImage[123]D() with NULL image pointer caused crash - glPixelStore parameters are now ignored during display list execution - fixed a two-sided lighting w/ clipping bug (black vertices) - textures with width!=height were sometimes mis-rendered - "weird" projection matrices could cause div by 0, other fp errors Changes: - changed precompiled header symbol from PCH to PC_HEADER - split api.c into api1.c and api2.c - added hash.c source file (but not used yet) - a few Sun and HP configuration file changes - MESA_GLX_FX env var replaces MESA_FX_WINDOW and MESA_FX_FULLSCREEN - fixed a few cygnus build problems (src/Makefile.cygnus, src/wmesa.c) 2.5 November 20, 1997 New: - updated 3Dfx driver (v20) for GLQuake - added GL_EXT_paletted_texture extension - added GL_EXT_shared_texture_palette extension - added GL_EXT_point_parameters extension - now including Mark Kilgard's GLUT library v3.6 - new GLUT-based demos in gdemos/ - added a few more Unix config targets - added Intel X86 assembly language vertex transformation code - 3Dfx/Glide driver for Mesa now recognizes SST_SCREENREFRESH env var - Windows 95 S3 Virge driver Bug fixes: - glCopyTexImage?D would crash due to uninitialized variable - glColor w/ glColorMaterial in a display list caused a bug - fixed several glDrawPixels() and ReadPixels() bugs in 3Dfx driver - glVertex4*() vertices weren't always projected correctly - trying to use mipmapped textured points or lines caused crash - glColor[34][fd]() values now clamped to [0,1] before int conversion Changes: - new device driver functions for texture mapping - hash tables used for display list and texture object lookup - fixed GLX visual handling code to avoid saving redundant visuals - 3Dfx Glide libraries automatically linked to libMesaGL.so - dropped the Cirrus Logic Mondello code since it's obsolete - updated Cygnus Makefiles (Stephane Rehel) - updated Windows MSVC++ Makefiles (Oleg Letsinsky) - procedure for making library files has changed: scripts now take a major and minor version arguments. Make-config changed a lot. - new implementation of glTexSubImage2D() - updated widgets-mesa directory to create libMesaGLwM.a (Motif widget) - separate linux-glide and linux-386-glide configurations 2.6 February 12, 1998 New: - Windows WGL functions - updated VMS, DOS, Windows, Cygnus, BeOS, Amiga compilation support - v0.22 of 3Dfx Glide driver - more X86 assembly language optimizations - faster blending for some modes - XMesaSetFXmode() to switch between 3Dfx window and full-screen mode - added preliminary thread support - added GLX_MESA_copy_sub_buffer extension - some clipping optimizations Bug fixes: - fixed shading/material bug when drawing long primitive strips - fixed clipping problem in long primitive strips - fixed clipping bug when using 3Dfx driver - fixed a problem when trying to use X fonts w/ 3Dfx driver - fixed a texture filter bug in 3Dfx/Glide driver - fixed bug in 3Dfx/Glide driver involving depth mask & clearing - glLoadMatrix to set projection matrix confused the 3Dfx driver - non-identity texture matrices didn't work with linux-386 configs - glGenTextures() didn't reserve the returned texture IDs - NULL proxy image sent to glTexImageXD() caused crash - added texture state validation optimization (Henk Kok) - fixed colormap reuse problem when using both RGB and CI windows - 32bpp True/DirectColor X visuals weren't recognized - fixed potential problem in evaluators memory allocation - fixed assorted demo compilation bugs Changes: - replaced old Mesa/windows/ directory with Mesa/WIN32/ directory - converted a few old glaux/gltk demos to GLUT - renamed directories: demos -> xdemos, gdemos -> demos 3.0 September 17, 1998 New: - OpenGL 1.2 API - GL_EXT_abgr pixel format extension - GL_SGIS_texture_edge_clamp extension - GL_SGIS_multitexture extension (to be replaced by GL_ARB_multitex) - GL_EXT_multitexture extension (to be replaced by GL_ARB_multitex) - GL_EXT_rescale_normal extension and renormal.c demo - GLX_SGI_video_sync extension (a no-op) - antialiased lines - glGetTexImage() now implemented - glDraw/Copy/ReadPixels() optimizations - optimized textured triangle code (Marten Stromberg) - more optimization of dithered TrueColor triangles in X driver - Linux GGI driver - updated MGL driver Bug fixes: - lots of assorted compilation fixes - glInitNames didn't write initial hit record - glBitmap didn't always check for invalid raster position - switching between GLX and OSMesa contexts caused a crash - fixed uninitialized variable in Mesa widget code - fixed typo in texture code which caused book/texgen to crash - fixed texture sampling bug when filter=GL_LINEAR and wrap=GL_CLAMP - gluDisk() in POINT or LINE mode sometimes failed - fixed texture + fog bug - GL_COMPILE_AND_EXECUTE mode didn't work reliably - glMultMatrix in projection matrix mode w/ 3Dfx driver could fail - glDrawPixels(color index pixels) weren't converted to RGBA - fixed possible getenv() buffer overflow security bug - glBitmap in feedback mode was offset by xOrig, yOrig params - device driver's DrawPixels hook was never used - glDrawPixels with zoomY!=1 and top/bottom clipping didn't work - glDrawPixels optimized for GL_LUMINANCE, GL_LUMINANCE_ALPHA, GLubyte - fixed MakeCurrent bug in GLwRedrawObjects() in MesaWorkstation.c - glCopyTexSubImage2D() didn't work with 3Dfx driver - lines with width = 2 could cause crash - glClear with scissor rect sometimes cleared whole buffer - glTexSubImage2D( .. GL_COLOR_INDEX .. ) didn't work - glTexImageXD( .. GL_ABGR_EXT .. ) didn't work - computation of inverse modelview matrix sometimes failed - fixed GL_CLAMP mode texture sampling bug - textured line interpolation was somewhat broken - textured triangle interpolation was also somewhat broken - glGet(MODELVIEW/PROJECTION/TEXTURE_MATRIX_STACK_DEPTH) off by one - evaluator state wasn't fully initialized - texture coordinate clipping was buggy - evaluator surfaces could be mis-colored - glAccum(GL_RETURN, s) didn't obey glColorMask() settings - zero area polygons shouldn't be culled if polygon mode is point/line - clipped width and height of glReadPixels was sometimes off by one - blending with alpha = 0 or 1.0 wasn't always exact - reading of pixels from clipped region was buggy - minor tweaking of X visual management in GLX emulator - glPolygonStipple now obeys pixel unpacking parameters - glGetPolygonStipple now obeys pixel packing parameters - interleaved vertex array texture coordinates were broken - query of proxy texture internal format was broken - alpha channel wasn't reliably cleared - fixed divide by zero error in gluScaleImage if dest size = 1 x 1 Conformance bug fixes: - GL_SELECTION_BUFFER_POINTER and GL_SELECTION_BUFFER_SIZE were missing - GL_TEXTURE_INTERNAL_FORMAT was missing - glGet*(GL_POLYGON_STIPPLE) was broken - glPush/PopAttrib() didn't save/restore all texture state - glBitmap in feedback mode didn't work - feedback of texture coords didn't always work - glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLbyte was broke - glDrawPixels w/ format=GL_DEPTH_COMPONENT, type=GLubyte was broke - glDrawPixels w/ format=GL_STENCIL_INDEX, type=GL_BITMAP was broke Changes: - upgraded GLUT to version 3.7 - only GL and GLU library code included in MesaLib.tar.gz - GLUT and all demos now in MesaDemos.tar.gz - glaux and gltk libraries removed - IRIX -n32 and -64 libs go in lib32/ and lib64/ directories 3.1 beta 1 November 19, 1998 New: - GL_EXT_stencil_wrap extension - GL_INGR_blend_func_separate extension - GL_ARB_multitexture extension - GL_NV_texgen_reflection extension - newly optimized vertex transformation code - updated GLUT 3.7 code - better precision when using 32-bit Z buffer - Allegro DJGPP driver Bug fixes: - glCopyPixels between front/back buffers didn't copy alpha correctly - fixed out-of-bounds memory access in optimized 2-D texture code - glPixelStorei didn't accept GL_PACK/UNPACK_IMAGE_HEIGHT parameter - glGet*() didn't accept GL_MAX_3D_TEXTURE_SIZE parameter - clipping of texture coordinates sometimes had bad R,Q values - GL_CLAMP_TO_EDGE texture sampling was off by 0.5 texels - glEdgeFlagPointer() now takes a GLvoid * instead of GLboolean * - texture was sometimes applied twice with 3Dfx driver - glPush/PopAttrib() fouled up texture object reference counts - glDeleteLists(0, n) caused assertion failure - bilinear texture sampling wasn't accurate enough - glClear w/ glDepthMask(GL_FALSE) didn't work right on 3Dfx - color components were reversed on big endian 32 bpp X visuals Changes: - removed GL_EXT_multitexture extension 3.1 beta 2 May 24, 1999 New: - multi-textured points and lines (mjk@nvidia.com) - optimized 24bpp X rendering (bernd.paysan@gmx.de) - added allegro support (bernie-t@geocities.com) - cleaned-up Windows-related stuff (Ted Jump) - minor stereo changes (KendallB@scitechsoft.com) - new BeOS driver which implements BGLView class - new Direct3D driver (see src/D3D) - more efficient filled gluCylinder() function - utilities: util/showbuffer.[ch] and util/glstate.[ch] - fixed some IRIX compiler warnings - added support for building Mesa in XFree86 with SGI's GLX (kevin@precisioninsight.com) Bug fixes: - a variety of Windows/Mesa bug fixes (mjk@nvidia.com) - packed pixel images weren't unpacked correctly - patches some win32 files in GLUT (mjk@nvidia.com) - glTexImage[123]D() didn't accept internalFormat == GL_COLOR_INDEX - fixed lighting bug in Keith's new shading code - fixed texture segfault seen in Lament screensaver - fixed miscellaneous low-memory bugs - glClear(GL_COLOR_BUFFER_BIT) with RGBA or CI masking was broken - GL_LINEAR sampling of 3D textures was broken - fixed SVR4 'cc' compiler macro problem (dawes@xfree86.org) - added GL_TEXTURE_PRIORITY fix (keithh@netcomuk.co.uk) - fixed wide point and wide line conformance bugs (brianp) Changes: - some device driver changes (see src/dd.h) - new copyright on core Mesa code 3.1 beta 3 September 17, 1999 New: - optimized glAccum function - optimized 24bpp rendering in XMesa driver - GLU 1.2 polygon tessellator Bug Fixes: - glGetTexLevelParameter wasn't fully implemented - glXUseXFont now handles multi-byte fonts - glIsEnabled(GL_TEXTURE_2D / 3D) returned wrong result - alpha channel of blending points, lines was sometimes incorrect Changes: - New library names: "libGL" instead of "libMesaGL" - New library numbering: libGL.so.1.2.310 - New subdirectories: docs/ and bin/ - New Makefile-system (autoconf,automake,libtool) 3.1 final December 14, 1999 New: - added demos/gloss.c - added xdemos/glxdpyinfo.c - added GLX_ARB_get_proc_address extension - rewritten glTexImage code paths (faster, less memory, bug fixes) Bug Fixes: - several vertex array bug fixes - overlapping glCopyPixels with pixel zooming now works - glXUseXFont() bitmaps were vertically shifted by one pixel - glCopyPixels with pixel zooming now works 3.2 final April 24, 2000 Bug fixes: - fixed memcpy bugs in span.c - fixed missing glEnd problem in demos/tessdemo.c - fixed bug when clearing 24bpp Ximages - fixed clipping problem found in Unreal Tournament - fixed Loki's "ice bug" and "crazy triangles" seen in Heretic2 - fixed Loki's 3dfx RGB vs BGR bug - fixed Loki's 3dfx smooth/flat shading bug in SoF Changes: - updated docs/README file - use bcopy() optimizations on FreeBSD - re-enabled the optimized persp_textured_triangle() function 3.2.1 July 19, 2000 Bug fixes: - gluBuild2DMipmaps() didn't accept GL_BGRA - Fixed compile/makefile problems on IRIX - fixed segfault in 3dfx driver when using GL selection/feedback - no longer cull very, very tiny triangles - blending w/ drawbuffer==GL_FRONT_BACK caused segfault (sw rendering) - fixed Motif detection code in widgets-mesa/configure.in - glColorMaterial and glMaterial updates to emissive and ambient didn't always work right - Specular highlights weren't always in the right place - clipped GL_LINE mode polygons had interior lines appear - blend term GL_ONE_MINUS_CONSTANT_ALPHA was broken - GL_NICEST fog didn't always work with flat shading - glRect commands in display lists were sometimes miscolored - Line Z offset didn't always work - fixed texgen normal vector problem (gloss's teapot) - numerous GL conformance bugs fixed Changes: - glColorMask(false, false, false, false) handled better/faster - reverted to old GLU polygon tessellator, GLU 1.1 - updated Win32 build files 3.3 July 21, 2000 New: - antialiased triangles now implemented - GL_EXT_texture_env_add texture mode extension - GLX 1.3 API - support for separate draw/read buffers (ie GL_SGI_make_current_read) - thread-safe API dispath - improved glxinfo program - demos/texdown program to measure texture download performance - glext.h header file - demos/geartrain program - GL_EXT_texture_lod_bias extension - demos/lodbias program - further optimized glRead/DrawPixels for 16-bit TrueColor X visuals - GLX_EXT_visual_rating extension (a no-op, however) - GL_HP_occlusion_test extension (for X and OS/Mesa drivers) - demos/occlude program - GL_SGIS_pixel_texture and GL_SGIX_pixel_texture extensions - demos/pixeltex program - GL_SGI_color_matrix extension - GL_SGI_color_table extension - GL_EXT_histogram extension - GL_ARB_texture_cube_map extension - added xdemos/glxheads and xdemos/manywin - demos/texenv.c demo - GL_EXT_texture_env_combine extension (by Holger Waechtler) - Xlib driver is now thread-safe (see xdemos/glthreads) Bug Fixes: - various GL conformance failures fixed since 3.2.1 Changes: - gl.h now uses #defines instead of C enums for all tokens - glu.h now uses #defines instead of C enums for all tokens - moved programs from 3Dfx/demos/ into demos/ directory 3.4 November 3, 2000 New: - optimized glDrawPixels for glPixelZoom(1,-1) Bug Fixes: - widgets-mesa/src/*.c files were missing from 3.3 distro - include/GL/mesa_wgl.h file was missing from 3.3 distro - fixed some Win32 compile problems - texture object priorities weren't getting initialized to 1.0 - glAreTexturesResident return value was wrong when using hardware - glXUseXFont segfaulted when using 3dfx driver (via MESA_GLX_FX) - glReadPixels with GLushort packed types was broken - fixed a few bugs in the GL_EXT_texture_env_combine texture code - glPush/PopAttrib(GL_ENABLE_BIT) mishandled multi-texture enables - fixed some typos/bugs in the VB code - glDrawPixels(GL_COLOR_INDEX) to RGB window didn't work - optimized glDrawPixels paths weren't being used - per-fragment fog calculation didn't work without a Z buffer - improved blending accuracy, fixes Glean blendFunc test failures - glPixelStore(GL_PACK/UNPACK_SKIP_IMAGES) wasn't handled correctly - glXGetProcAddressARB() didn't always return the right address - gluBuild[12]DMipmaps() didn't grok the GL_BGR pixel format - texture matrix changes weren't always detected (GLUT projtex demo) - fixed random color problem in vertex fog code - fixed Glide-related bug that let Quake get a 24-bit Z buffer Changes: - finished internal support for compressed textures for DRI 3.4.1 February 14, 2001 New: - fixed some Linux build problems - fixed some Windows build problems - GL_EXT_texture_env_dot3 extension (Gareth Hughes) Bug fixes: - added RENDER_START/RENDER_FINISH macros for glCopyTexImage in DRI - various state-update code changes needed for DRI bugs - disabled pixel transfer ops in glColorTable commands, not needed - fixed bugs in glCopyConvolutionFilter1D/2D, glGetConvolutionFilter - updated sources and fixed compile problems in widgets-mesa/ - GLX_PBUFFER enum value was wrong in glx.h - fixed a glColorMaterial lighting bug - fixed bad args to Read/WriteStencilSpan in h/w stencil clear function - glXCopySubBufferMESA() Y position was off by one - Error checking of glTexSubImage3D() was broken (bug 128775) - glPopAttrib() didn't restore all derived Mesa state correctly - Better glReadPixels accuracy for 16bpp color - fixes lots of OpenGL conformance problems at 16bpp. - clearing depth buffer with scissoring was broken, would segfault - OSMesaGetDepthBuffer() returned bad bytesPerValue value - fixed a line clipping bug (reported by Craig McDaniel) - fixed RGB color over/underflow bug for very tiny triangles Known problems: - NURBS or evaluator surfaces inside display lists don't always work 3.4.2 May 17, 2001 Bug fixes: - deleting the currently bound texture could cause bad problems - using fog could result in random vertex alpha values - AA triangle rendering could touch pixels outside right window bound - fixed byteswapping problem in clear_32bit_ximage() function - fixed bugs in wglUseFontBitmapsA(), by Frank Warmerdam - fixed memory leak in glXUseXFont() - fragment sampling in AA triangle function was off by 1/2 pixel - Windows: reading pixels from framebuffer didn't always work - glConvolutionFilter2D could segfault or cause FP exception - fixed segfaults in FX and X drivers when using tex unit 1 but not 0 - GL_NAND logicop didn't work right in RGBA mode - fixed a memory corruption bug in vertex buffer reset code - clearing the softwara alpha buffer with scissoring was broken - fixed a few color index mode fog bugs - fixed some bad assertions in color index mode - fixed FX line 'stipple' bug #420091 - fixed stencil buffer clear width/height typo - fixed GL error glitches in gl[Client]ActiveTextureARB() - fixed Windows compilation problem in texutil.c - fixed 1/8-pixel AA triangle sampling error Changes: - optimized writing mono-colored pixel spans to X pixmaps - increased max viewport size to 2048 x 2048 3.5 June 21, 2001 New: - internals of Mesa divided into modular pieces (Keith Whitwell) - 100% OpenGL 1.2 conformance (passes all conformance tests) - new AA line algorithm - GL_EXT_convolution extension - GL_ARB_imaging subset - OSMesaCreateContextExt() function - GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add) - GL_MAX_TEXTURE_UNITS_ARB now defaults to eight - GL_EXT_fog_coord extension (Keith Whitwell) - GL_EXT_secondary_color extension (Keith Whitwell) - GL_ARB_texture_env_add extension (same as GL_EXT_texture_env_add) - GL_SGIX_depth_texture extension - GL_SGIX_shadow and GL_SGIX_shadow_ambient extensions - demos/shadowtex.c demo of GL_SGIX_depth_texture and GL_SGIX_shadow - GL_ARB_texture_env_combine extension - GL_ARB_texture_env_dot3 extension - GL_ARB_texture_border_clamp (aka GL_SGIS_texture_border_clamp) - OSMesaCreateContextExt() function - libOSMesa.so library, contains the OSMesa driver interface - GL/glxext.h header file for GLX extensions - somewhat faster software texturing, fogging, depth testing - all color-index conformance tests now pass (only 8bpp tested) - SPARC assembly language TCL optimizations (David Miller) - GL_SGIS_generate_mipmap extension Bug Fixes: - fbiRev and tmuRev were unitialized when using Glide3 - fixed a few color index mode conformance failures; all pass now - now appling antialiasing coverage to alpha after texturing - colors weren't getting clamped to [0,1] before color table lookup - fixed RISC alignment errors caused by COPY_4UBV macro - drawing wide, flat-shaded lines could cause a segfault - vertices now snapped to 1/16 pixel to fix rendering of tiny triangles Changes: - SGI's Sample Implementation (SI) 1.3 GLU library replaces Mesa GLU - new libOSMesa.so library, contains the OSMesa driver interface