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Diffstat (limited to 'mesalib/docs/RELNOTES-3.5')
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diff --git a/mesalib/docs/RELNOTES-3.5 b/mesalib/docs/RELNOTES-3.5 deleted file mode 100644 index b2aa1b852..000000000 --- a/mesalib/docs/RELNOTES-3.5 +++ /dev/null @@ -1,227 +0,0 @@ - - Mesa 3.5 release notes - - June 21, 2001 - - PLEASE READ!!!! - - - -Introduction ------------- - -Mesa uses an even/odd version number scheme like the Linux kernel. -Odd numbered versions (such as 3.5) designate new developmental releases. -Even numbered versions (such as 3.4) designate stable releases. - -The biggest change in Mesa 3.5 is a complete overhaul of the source -code in order to make it more modular. This was driven by the DRI -hardware drivers. It simplifies the DRI drivers and opens the door -to hardware transform/clip/lighting (TCL). Keith Whitwell can take -the credit for that. - - - -Driver Support --------------- - -The device driver interface in Mesa 3.5 has changed a lot since Mesa 3.4 -Not all of the older Mesa drivers have been updated. Here's the status: - -Driver Status ----------------------- ----------- -XMesa (Xlib) updated -OSMesa (off-screen) updated -FX (3dfx Voodoo1/2) updated -SVGA updated -GGI not updated -Windows/Win32 not updated -DOS/DJGPP not updated -BeOS not updated -Allegro not updated -D3D not updated -DOS not updated - -We're looking for volunteers to update the remaining drivers. Please -post to the Mesa3d-dev mailing list if you can help. - - - -GLU 1.3 -------- - -Mesa 3.5 includes the SGI Sample Implementation (SI) GLU library. -This version of GLU supports the GLU 1.3 specification. The old -Mesa GLU library implemented the 1.1 specification. The SI GLU -library should work much better. - -You'll need a C++ compiler to compile the SI GLU library. This may -be a problem on some systems. - - - -New Extensions --------------- - -GL_EXT_convolution - Adds image convolution to glRead/Copy/DrawPixels/TexImage. - -GL_ARB_imaging - This is the optional imaging subset of OpenGL 1.2. - It's the GL_EXT_convolution, GL_HP_convolution_border_modes, - GL_EXT_histogram, GL_EXT_color_table, GL_EXT_color_subtable - GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract - and GL_SGI_color_matrix extensions all rolled together. - This is supported in all software renderers but not in all - hardware drivers (3dfx for example). - -GL_ARB_texture_compression - This is supported in Mesa but only used by the 3dfx DRI drivers - for Voodoo4 and later. - -GL_ARB_texture_env_add - This is identical to GL_EXT_texture_env_add. - -GL_NV_blend_square - Adds extra blend source and dest factors which allow squaring - of color values. - -GL_EXT_fog_coord - Allows specification of a per-vertex fog coordinate instead of - having fog always computed from the eye distance. - -GL_EXT_secondary_color - Allows specifying the secondary (specular) color for each vertex - instead of getting it only from lighting in GL_SEPARATE_SPECULAR_COLOR - mode. - -GL_ARB_texture_env_combine - Basically the same as GL_EXT_texture_env_combine - -GL_ARB_texture_env_add extension - Texture addition mode. - -GL_ARB_texture_env_dot3 extension - Dot product texture environment. - -GL_ARB_texture_border_clamp - Adds GL_CLAMP_TO_BORDER_ARB texture wrap mode - -GL_SGIX_depth_texture, GL_SGIX_shadow and GL_SGIX_shadow_ambient - Implements a shadow casting algorithm based on depth map textures - -GL_SGIS_generate_mipmap - Automatically generate lower mipmap images whenever the base mipmap - image is changed with glTexImage, glCopyTexImage, etc. - - - -libOSMesa.so ------------- - -libOSMesa.so is a new library which contains the OSMesa interface for -off-screen rendering. Apps which need the OSMesa interface should link -with both -lOSMesa and -lGL. This change was made so that stand-alone -Mesa works the same way as XFree86/DRI's libGL. - - - -Device Driver Changes / Core Mesa Changes ------------------------------------------ - -The ctx->Driver.LogicOp() function has been removed. It used to -be called during state update in order to determine if the driver -could do glLogicOp() operations, and if not, set the SWLogicOpEnabled -flag. Drivers should instead examine the LogicOp state themselves -and choose specialized point, line, and triangle functions appropriately, -or fall back to software rendering. The Xlib driver was the only driver -to use this function. And since the Xlib driver no longer draws -points, lines or triangles using Xlib, the LogicOp function isn't needed. - -The ctx->Driver.Dither() function has been removed. Drivers should -detect dither enable/disable via ctx->Driver.Enable() instead. - -The ctx->Driver.IndexMask() and ctx->Driver.ColorMask() functions -are now just called from glIndexMask and glColorMask like the other -GL state-changing functions. They are no longer called from inside -gl_update_state(). Also, they now return void. The change was made -mostly for sake of uniformity. - -The NEW_DRVSTATE[0123] flags have been removed. They weren't being used -and are obsolete w.r.t. the way state updates are done in DRI drivers. - - -Removed obsolete gl_create_visual() and gl_destroy_visual(). - -Renamed functions (new namespace): - -old new -gl_create_framebuffer _mesa_create_framebuffer -gl_destroy_framebuffer _mesa_destroy_framebuffer -gl_create_context _mesa_create_context -gl_destroy_context _mesa_destroy_context -gl_context_initialize _mesa_context_initialize -gl_copy_context _mesa_copy_context -gl_make_current _mesa_make_current -gl_make_current2 _mesa_make_current2 -gl_get_current_context _mesa_get_current_context -gl_flush_vb _mesa_flush_vb -gl_warning _mesa_warning -gl_compile_error _mesa_compile_error - - -All the drivers have been updated, but not all of them have been -tested since I can't test some platforms (DOS, Windows, Allegro, etc). - - -X/Mesa Driver -------------- - -The source files for the X/Mesa driver in src/X have been renamed. -The xmesa[1234].c files are gone. The new files are xm_api.c, -xm_dd.c, xm_line.c, xm_span.c and xm_tri.c. - - - -Multitexture ------------- - -Eight texture units are now supported by default. - - - -OpenGL SI related changes -------------------------- - -In an effort to make Mesa's internal interfaces more like the OpenGL -SI interfaces, a number of changes have been made: - -1. Importing the SI's glcore.h file which defines a number of -interface structures like __GLimports and __GLexports. - -2. Renamed "struct gl_context" to "struct __GLcontextRec". - -3. Added __glCoreCreateContext() and __glCoreNopDispatch() functions. - -4. The GLcontext member Visual is no longer a pointer. - -5. New file: imports.c to setup default import functions for Mesa. - - - - -16-bit color channels ---------------------- - -There's experimental support for 16-bit color channels (64-bit pixels) -in Mesa 3.5. Only the OSMesa interface can be used for 16-bit rendering. -Type "make linux-osmesa16" in the top-level directory to build the -special libOSMesa16.so library. - -This hasn't been tested very thoroughly yet so please file bug reports -if you have trouble. - -In the future I hope to implement support for 32-bit, floating point -color channels. - ----------------------------------------------------------------------- |