106 lines
3.8 KiB
ReStructuredText
106 lines
3.8 KiB
ReStructuredText
Mesa 6.5.3 Release Notes / April 27, 2007
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=========================================
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Mesa 6.5.3 is a development release with many changes and new features.
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Mesa 7.0 is expected to follow shortly.
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MD5 checksums
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-------------
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::
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39f33ea64e34e2d5b20640b008b57649 MesaLib-6.5.3.tar.gz
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46359457147c469745f24b5074a186f0 MesaLib-6.5.3.tar.bz2
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a8946fa861634ce15971396f47992c41 MesaLib-6.5.3.zip
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08e26948d57eaca74d02a530b2d8106e MesaDemos-6.5.3.tar.gz
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8af91773ab2653fe537499676b05f2e8 MesaDemos-6.5.3.tar.bz2
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783f81b171bf89b0929abc894efd25a6 MesaDemos-6.5.3.zip
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9467d415388fe1ad82991fb20704b812 MesaGLUT-6.5.3.tar.gz
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360843e46b7ebb6909290b023f9b26fa MesaGLUT-6.5.3.tar.bz2
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7686065e5c15a30de08a1610860b6840 MesaGLUT-6.5.3.zip
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Shared library numbering
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------------------------
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Mesa 6.5.3 supports the OpenGL 2.0/2.1 API. However, the (unix) shared
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library version is still 1.5 (i.e. libGL.so.1.5.xxxxxx). Bumping the
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shared library version to 2.x would cause linking problems with existing
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OpenGL applications. Since OpenGL 2.x is backward compatible with OpenGL
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1.x the shared library version number doesn't have to be incremented
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(which would indicate an incompatible ABI).
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Other OpenGL vendors name their OpenGL 2.x libraries libGL.so.1.0.xxxxx
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for the same reason.
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New features
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------------
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- OpenGL 2.0 and 2.1 API support.
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- Entirely new Shading Language code generator. See the :doc:`Shading
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Language <../shading>` page for more information.
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- Much faster software execution of vertex, fragment shaders.
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- New vertex buffer object (vbo) infrastructure
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- Updated glext.h file (version 39)
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- Updated glxext.h file (version 19)
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- GL_MAX_DRAWBUFFERS is now 4 (software rendering) so "multiple render
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targets" are really supported.
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Bug fixes
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---------
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- Fog was errantly applied when a fragment shader was enabled (bug
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9346)
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- glPush/PopClientAttrib didn't handle VBO bindings correctly (bug
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9445)
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- With 32-bit Z buffer, the fragment Z of lines and points was
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sometimes wrong.
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- GL_POST_CONVOLUTION_ALPHA_BIAS/SCALE was broken.
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- 1D convolution state could effect 2D image transfers
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- Overlapping glCopyPixels with negative Y zoom didn't work (bug 10521)
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- Fixed a number of framebuffer/renderbuffer reference counting bugs
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- Fixed a few bugs in software-emulated alpha planes
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- Assorted minor bug fixes in glCopy/DrawPixels, glPixelZoom, etc.
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- Assorted DRI driver bug fixes.
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- Fixed a number of bugs that prevented "depth-peeling" rendering from
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working.
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Internal code changes
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---------------------
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- Old array_cache module replaced by new vbo module. All geometry
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rendering is now cast in the form of vertex buffer objects.
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- Massive changes to the Shading Language compiler and related state.
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- Vertex/fragment shaders are compiled into GPU instructions and
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programs very similar to GL_ARB_vertex/fragment_program.
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- Vertex and fragment programs are executed with the same code now.
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- The SSE-optimized vertex program path has been removed since it
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didn't support more than 12 temp registers, didn't support
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branching/looping, etc.
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To Do (someday) items
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---------------------
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- Switch to freeglut
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- Fix linux-glide target/driver.
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- Improved lambda and derivative calculation for frag progs.
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Driver Status
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-------------
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::
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Driver Status
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---------------------- ----------------------
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DRI drivers varies with the driver
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XMesa/GLX (on Xlib) implements OpenGL 2.1
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OSMesa (off-screen) implements OpenGL 2.1
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Windows/Win32 implements OpenGL 2.1
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Glide (3dfx Voodoo1/2) implements OpenGL 1.3
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SVGA unsupported
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Wind River UGL unsupported
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DJGPP unsupported
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GGI unsupported
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BeOS unsupported
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Allegro unsupported
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D3D unsupported
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