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diff --git a/mesalib/docs/relnotes/4.0 b/mesalib/docs/relnotes/4.0 new file mode 100644 index 000000000..2f729db15 --- /dev/null +++ b/mesalib/docs/relnotes/4.0 @@ -0,0 +1,162 @@ + + Mesa 4.0 release notes + + October 18, 2001 + + PLEASE READ!!!! + + + +Introduction +------------ + +Mesa uses an even/odd version number scheme like the Linux kernel. +Odd numbered versions (such as 3.3) designate new developmental releases. +Even numbered versions (such as 3.4) designate stable releases. + +Mesa version 4.0 signifies two things: + + 1. A stabilization of the 3.5 development release + 2. Implementation of the OpenGL 1.3 specification + + +Note that the Mesa major version number is incremented with the OpenGL +minor version number: + + Mesa 1.x == OpenGL 1.0 + Mesa 2.x == OpenGL 1.1 + Mesa 3.x == OpenGL 1.2 + Mesa 4.x == OpenGL 1.3 + + + +New Features +------------ + +Mesa 3.5 already had all the new features of OpenGL 1.3, implemented as +extensions. These extensions were simply promoted to standard features: + + GL_ARB_multisample + GL_ARB_multitexture + GL_ARB_texture_border_clamp + GL_ARB_texture_compression + GL_ARB_texture_cube_map + GL_ARB_texture_env_add + GL_ARB_texture_env_combine + GL_ARB_texture_env_dot3 + GL_ARB_transpose_matrix + +In Mesa 4.0 the functions defined by these extensions are now available +without the "ARB" suffix. For example, glLoadTransposeMatrixf() is now +a standard API function. The new functions in OpenGL 1.3 and Mesa 4.0 are: + + glActiveTexture + glClientActiveTexture + glCompressedTexImage1D + glCompressedTexImage2D + glCompressedTexImage3D + glCompressedTexSubImage1D + glCompressedTexSubImage2D + glCompressedTexSubImage3D + glGetCompressedTexImage + glLoadTransposeMatrixd + glLoadTransposeMatrixf + glMultiTexCoord1d + glMultiTexCoord1dv + glMultiTexCoord1f + glMultiTexCoord1fv + glMultiTexCoord1i + glMultiTexCoord1iv + glMultiTexCoord1s + glMultiTexCoord1sv + glMultiTexCoord2d + glMultiTexCoord2dv + glMultiTexCoord2f + glMultiTexCoord2fv + glMultiTexCoord2i + glMultiTexCoord2iv + glMultiTexCoord2s + glMultiTexCoord2sv + glMultiTexCoord3d + glMultiTexCoord3dv + glMultiTexCoord3f + glMultiTexCoord3fv + glMultiTexCoord3i + glMultiTexCoord3iv + glMultiTexCoord3s + glMultiTexCoord3sv + glMultiTexCoord4d + glMultiTexCoord4dv + glMultiTexCoord4f + glMultiTexCoord4fv + glMultiTexCoord4i + glMultiTexCoord4iv + glMultiTexCoord4s + glMultiTexCoord4sv + glMultTransposeMatrixd + glMultTransposeMatrixf + glSampleCoverage + glSamplePass + + +GLX 1.4 is the companion to OpenGL 1.3. The only new features in GLX 1.4 +are support for multisampling and the GLX_ARB_get_proc_address extension. +glXGetProcAddress() is the only new function in GLX 1.4. + + + +Multisample and Texture Compression +----------------------------------- + +The OpenGL 1.3 specification allows the multisample and texture compression +features to essentially be no-ops. For example, if you query for multisample +support you'll find none, but the API functions work. + +Similarly, texture compression is not implemented by any of the software +drivers but you can specify a generic compressed texture format (like +GL_COMPRESSED_RGBA) to glTexImage2D and it'll be accepted. + + + +Device Drivers +-------------- + +Mesa advertises itself as either OpenGL 1.2 or OpenGL 1.3 depending on the +device driver. If the driver enables all the ARB extensions which are part +of OpenGL 1.3 then glGetString(GL_VERSION) will return "1.3". Otherwise, +it'll return "1.2". + +A number of Mesa's software drivers haven't been actively maintained for +some time. We rely on volunteers to maintain many of the drivers. +Here's the current status of all included drivers: + + +Driver Status +---------------------- --------------------- +XMesa (Xlib) implements OpenGL 1.3 +OSMesa (off-screen) implements OpenGL 1.3 +FX (3dfx Voodoo1/2) implements OpenGL 1.3 +SVGA implements OpenGL 1.3 +Wind River UGL implements OpenGL 1.3 +Windows/Win32 implements OpenGL 1.3 +GGI needs updating +DOS/DJGPP needs updating +BeOS needs updating +Allegro needs updating +D3D needs updating +DOS needs updating + +Special thanks go to Karl Schultz for updating the Windows driver. + +The XFree86/DRI drivers have not yet been updated to use Mesa 4.0 as of +September 2001, but that should happen eventually. + + + +Other Changes +------------- + +See the VERSIONS file for more details about bug fixes, etc. in Mesa 4.0. + + +---------------------------------------------------------------------- |