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diff --git a/docs/COPYING b/docs/COPYING new file mode 100644 index 00000000000..0b643ac83c8 --- /dev/null +++ b/docs/COPYING @@ -0,0 +1,483 @@ + + GNU LIBRARY GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the library GPL. It is + numbered 2 because it goes with version 2 of the ordinary GPL.] + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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(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 ([email protected]) - - optimized 24bpp X rendering ([email protected]) - - added allegro support ([email protected]) - - cleaned-up Windows-related stuff (Ted Jump) - - minor stereo changes ([email protected]) - - 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 ([email protected]) - Bug fixes: - - a variety of Windows/Mesa bug fixes ([email protected]) - - packed pixel images weren't unpacked correctly - - patches some win32 files in GLUT ([email protected]) - - 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 ([email protected]) - - added GL_TEXTURE_PRIORITY fix ([email protected]) - - fixed wide point and wide line conformance bugs (brianp) - Changes: - - some device driver changes (see src/dd.h) - - new copyright on core Mesa code - |