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Diffstat (limited to 'mesalib/docs/RELNOTES-3.1')
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diff --git a/mesalib/docs/RELNOTES-3.1 b/mesalib/docs/RELNOTES-3.1 new file mode 100644 index 000000000..65324eb49 --- /dev/null +++ b/mesalib/docs/RELNOTES-3.1 @@ -0,0 +1,145 @@ + + Mesa 3.1 release notes + + PLEASE READ!!!! + + +New copyright +------------- + +Mesa 3.1 will be distributed under an XFree86-style copyright instead +of the GNU LGPL. + + +New directories +--------------- + +All documentation files are now in the docs/ directory. +All shell scripts are now in the bin/ directory. + + +New library names +----------------- + +Formerly, the main Mesa library was named libMesaGL.so (or libMesaGL.a) +and the GLU library was named libMesaGLU.so (or libMesaGLU.a). + +Now, the main library is named libGL.so (or libGL.a) and the GLU library +is named libGLU.so (or libGLU.a). + +The change allows Mesa to be more easily substituted for OpenGL. +Specifically, the linker/loader on some Unix-like systems won't +allow libMesaGL.so to be used instead of libGL.so if the application +was linked with the former. + +Warning: if you have another OpenGL implementation installed on your +system (i.e. you have another OpenGL libGL.so) you'll have to be +carefull about which library (OpenGL or Mesa) you link against. Be +aware of -L linker flags and the value of the LD_LIBRARY_PATH environment +variable. + + +New library versioning +---------------------- + +Previously, the Mesa GL library was named libMesaGL.so.3.0 +To better support Linux/OpenGL standards, the Mesa GL library is now +named libGL.so.1.2.030100 This indicates version 1.2 of the OpenGL spec +and Mesa implementation 3.1.0 + +In the long term this will allow better interoperability with other +OpenGL implementations, especially on Linux. In the short term, +OpenGL apps may have to be relinked to use the new library naming. + + + +New makefiles +------------- + +The old Makefiles found in the various directories have been renamed +to Makefile.X11 in order to prevent filename collisions with autoconfig- +generated Makefiles. + +The top-level Makefile simply includes Makefile.X11 +If your top-level Makefile get's overwritten/destroyed you can restore +it by copying Makefile.X11 to Makefile + + +New extensions +-------------- + +GL_EXT_stencil_wrap + Implements two new stencil operations: GL_INCR_WRAP_EXT and + GL_DECR_WRAP_EXT which allow stencil increment and decrement + without clamping. + +GL_INGR_blend_func_separate + Allows specification of blend factors for RGB and Alpha independently. + (INGR = Intergraph) + +GL_ARB_multitexture + Multiple simultaneous textures. (ARB = Architecture Review Board) + +GL_NV_texgen_reflection + nVidia texgen extension for better reflection mapping. + +GL_PGI_misc_hints + Assorted transformation hints. + +GL_EXT_compiled_vertex_array + Compiled vertex arrays. + +GL_EXT_clip_volume_hint + Allows one to disable clip volume (frustum) testing. + + + +Extensions removed +------------------ + +GL_EXT_multitexture - obsolete in favor of GL_ARB_multitexture + + + +Config file +----------- + +By default, /etc/mesa.conf will be read when Mesa starts. This +file controls default hints, enable/disable of extensions, and +more. See the CONFIG file for documentation. + + + +Optimizations +------------- + +Keith Whitwell has contributed significant optimizations to Mesa's +vertex transformation code. Basically, the whole transformation +stage of Mesa has been rewritten. + +It's impossible to give a speedup factor. You'll just have to +try your app and see how it performs. + + + +Device Driver changes +--------------------- + +A bunch of new device driver functions have been added. See src/dd.h +Keith Harrison contributed many of them. I've been planning on adding +a bunch of functions like these to make writing hardware drivers easier. +More such function will probably be added in the near future. + + + +Miscellaneous +------------- + +util/glstate.c has some handy functions for debugging. Basically, it +offers a simple function for printing GL state variables. It's not +finished yet. There's a LOT more GLenum records to be added (see the +code). Anyone want to help? + + + +---------------------------------------------------------------------- |