| Brian Paul | a573803 | 2001-09-23 16:10:02 +0000 | [diff] [blame] | 1 | |
| 2 | Mesa 4.0 release notes |
| 3 | |
| Brian Paul | ebc8b0a | 2001-10-17 14:59:21 +0000 | [diff] [blame] | 4 | October 18, 2001 |
| Brian Paul | a573803 | 2001-09-23 16:10:02 +0000 | [diff] [blame] | 5 | |
| 6 | PLEASE READ!!!! |
| 7 | |
| 8 | |
| 9 | |
| 10 | Introduction |
| 11 | ------------ |
| 12 | |
| 13 | Mesa uses an even/odd version number scheme like the Linux kernel. |
| 14 | Odd numbered versions (such as 3.3) designate new developmental releases. |
| 15 | Even numbered versions (such as 3.4) designate stable releases. |
| 16 | |
| 17 | Mesa version 4.0 signifies two things: |
| 18 | |
| 19 | 1. A stabilization of the 3.5 development release |
| 20 | 2. Implementation of the OpenGL 1.3 specification |
| 21 | |
| 22 | |
| 23 | Note that the Mesa major version number is incremented with the OpenGL |
| 24 | minor version number: |
| 25 | |
| 26 | Mesa 1.x == OpenGL 1.0 |
| 27 | Mesa 2.x == OpenGL 1.1 |
| 28 | Mesa 3.x == OpenGL 1.2 |
| 29 | Mesa 4.x == OpenGL 1.3 |
| 30 | |
| 31 | |
| 32 | |
| 33 | New Features |
| 34 | ------------ |
| 35 | |
| 36 | Mesa 3.5 already had all the new features of OpenGL 1.3, implemented as |
| 37 | extensions. These extensions were simply promoted to standard features: |
| 38 | |
| 39 | GL_ARB_multisample |
| 40 | GL_ARB_multitexture |
| 41 | GL_ARB_texture_border_clamp |
| 42 | GL_ARB_texture_compression |
| 43 | GL_ARB_texture_cube_map |
| 44 | GL_ARB_texture_env_add |
| 45 | GL_ARB_texture_env_combine |
| 46 | GL_ARB_texture_env_dot3 |
| 47 | GL_ARB_transpose_matrix |
| 48 | |
| 49 | In Mesa 4.0 the functions defined by these extensions are now available |
| 50 | without the "ARB" suffix. For example, glLoadTransposeMatrixf() is now |
| 51 | a standard API function. The new functions in OpenGL 1.3 and Mesa 4.0 are: |
| 52 | |
| 53 | glActiveTexture |
| 54 | glClientActiveTexture |
| 55 | glCompressedTexImage1D |
| 56 | glCompressedTexImage2D |
| 57 | glCompressedTexImage3D |
| 58 | glCompressedTexSubImage1D |
| 59 | glCompressedTexSubImage2D |
| 60 | glCompressedTexSubImage3D |
| 61 | glGetCompressedTexImage |
| 62 | glLoadTransposeMatrixd |
| 63 | glLoadTransposeMatrixf |
| 64 | glMultiTexCoord1d |
| 65 | glMultiTexCoord1dv |
| 66 | glMultiTexCoord1f |
| 67 | glMultiTexCoord1fv |
| 68 | glMultiTexCoord1i |
| 69 | glMultiTexCoord1iv |
| 70 | glMultiTexCoord1s |
| 71 | glMultiTexCoord1sv |
| 72 | glMultiTexCoord2d |
| 73 | glMultiTexCoord2dv |
| 74 | glMultiTexCoord2f |
| 75 | glMultiTexCoord2fv |
| 76 | glMultiTexCoord2i |
| 77 | glMultiTexCoord2iv |
| 78 | glMultiTexCoord2s |
| 79 | glMultiTexCoord2sv |
| 80 | glMultiTexCoord3d |
| 81 | glMultiTexCoord3dv |
| 82 | glMultiTexCoord3f |
| 83 | glMultiTexCoord3fv |
| 84 | glMultiTexCoord3i |
| 85 | glMultiTexCoord3iv |
| 86 | glMultiTexCoord3s |
| 87 | glMultiTexCoord3sv |
| 88 | glMultiTexCoord4d |
| 89 | glMultiTexCoord4dv |
| 90 | glMultiTexCoord4f |
| 91 | glMultiTexCoord4fv |
| 92 | glMultiTexCoord4i |
| 93 | glMultiTexCoord4iv |
| 94 | glMultiTexCoord4s |
| 95 | glMultiTexCoord4sv |
| 96 | glMultTransposeMatrixd |
| 97 | glMultTransposeMatrixf |
| 98 | glSampleCoverage |
| 99 | glSamplePass |
| 100 | |
| 101 | |
| 102 | GLX 1.4 is the companion to OpenGL 1.3. The only new features in GLX 1.4 |
| 103 | are support for multisampling and the GLX_ARB_get_proc_address extension. |
| 104 | glXGetProcAddress() is the only new function in GLX 1.4. |
| 105 | |
| 106 | |
| 107 | |
| 108 | Multisample and Texture Compression |
| 109 | ----------------------------------- |
| 110 | |
| 111 | The OpenGL 1.3 specification allows the multisample and texture compression |
| 112 | features to essentially be no-ops. For example, if you query for multisample |
| 113 | support you'll find none, but the API functions work. |
| 114 | |
| 115 | Similarly, texture compression is not implemented by any of the software |
| 116 | drivers but you can specify a generic compressed texture format (like |
| 117 | GL_COMPRESSED_RGBA) to glTexImage2D and it'll be accepted. |
| 118 | |
| 119 | |
| 120 | |
| 121 | Device Drivers |
| 122 | -------------- |
| 123 | |
| 124 | Mesa advertises itself as either OpenGL 1.2 or OpenGL 1.3 depending on the |
| 125 | device driver. If the driver enables all the ARB extensions which are part |
| 126 | of OpenGL 1.3 then glGetString(GL_VERSION) will return "1.3". Otherwise, |
| 127 | it'll return "1.2". |
| 128 | |
| 129 | A number of Mesa's software drivers haven't been actively maintained for |
| 130 | some time. We rely on volunteers to maintain many of the drivers. |
| 131 | Here's the current status of all included drivers: |
| 132 | |
| 133 | |
| 134 | Driver Status |
| 135 | ---------------------- --------------------- |
| 136 | XMesa (Xlib) implements OpenGL 1.3 |
| 137 | OSMesa (off-screen) implements OpenGL 1.3 |
| 138 | FX (3dfx Voodoo1/2) implements OpenGL 1.3 |
| 139 | SVGA implements OpenGL 1.3 |
| 140 | Wind River UGL implements OpenGL 1.3 |
| Brian Paul | ebc8b0a | 2001-10-17 14:59:21 +0000 | [diff] [blame] | 141 | Windows/Win32 implements OpenGL 1.3 |
| Brian Paul | a573803 | 2001-09-23 16:10:02 +0000 | [diff] [blame] | 142 | GGI needs updating |
| Brian Paul | a573803 | 2001-09-23 16:10:02 +0000 | [diff] [blame] | 143 | DOS/DJGPP needs updating |
| 144 | BeOS needs updating |
| 145 | Allegro needs updating |
| 146 | D3D needs updating |
| 147 | DOS needs updating |
| 148 | |
| Brian Paul | ebc8b0a | 2001-10-17 14:59:21 +0000 | [diff] [blame] | 149 | Special thanks go to Karl Schultz for updating the Windows driver. |
| 150 | |
| Brian Paul | a573803 | 2001-09-23 16:10:02 +0000 | [diff] [blame] | 151 | The XFree86/DRI drivers have not yet been updated to use Mesa 4.0 as of |
| 152 | September 2001, but that should happen eventually. |
| 153 | |
| 154 | |
| 155 | |
| 156 | Other Changes |
| 157 | ------------- |
| 158 | |
| 159 | See the VERSIONS file for more details about bug fixes, etc. in Mesa 4.0. |
| 160 | |
| 161 | |
| 162 | ---------------------------------------------------------------------- |