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| Mesa 4.0 release notes |
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| October 18, 2001 |
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| PLEASE READ!!!! |
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| Introduction |
| ------------ |
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| 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. |
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| Mesa version 4.0 signifies two things: |
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| 1. A stabilization of the 3.5 development release |
| 2. Implementation of the OpenGL 1.3 specification |
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| Note that the Mesa major version number is incremented with the OpenGL |
| minor version number: |
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| Mesa 1.x == OpenGL 1.0 |
| Mesa 2.x == OpenGL 1.1 |
| Mesa 3.x == OpenGL 1.2 |
| Mesa 4.x == OpenGL 1.3 |
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| New Features |
| ------------ |
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| Mesa 3.5 already had all the new features of OpenGL 1.3, implemented as |
| extensions. These extensions were simply promoted to standard features: |
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| 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 |
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| 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: |
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| 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 |
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| 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. |
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| Multisample and Texture Compression |
| ----------------------------------- |
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| 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. |
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| 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. |
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| Device Drivers |
| -------------- |
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| 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". |
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| 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: |
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| 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 |
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| Special thanks go to Karl Schultz for updating the Windows driver. |
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| The XFree86/DRI drivers have not yet been updated to use Mesa 4.0 as of |
| September 2001, but that should happen eventually. |
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| Other Changes |
| ------------- |
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| See the VERSIONS file for more details about bug fixes, etc. in Mesa 4.0. |
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| ---------------------------------------------------------------------- |
| $Id: RELNOTES-4.0,v 1.1.1.1 2012/03/29 17:22:08 uid42307 Exp $ |
