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- 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
-