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127 lines
4.1 KiB
HTML
127 lines
4.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html lang="en">
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<title>Mesa Release Notes</title>
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<link rel="stylesheet" type="text/css" href="../mesa.css">
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</head>
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<body>
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<div class="header">
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<h1>The Mesa 3D Graphics Library</h1>
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</div>
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<iframe src="../contents.html"></iframe>
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<div class="content">
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<h1>Mesa 6.5.3 Release Notes / April 27, 2007</h1>
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<p>
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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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</p>
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<h2>MD5 checksums</h2>
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<pre>
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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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</pre>
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<h2>Shared library numbering</h2>
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<p>
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Mesa 6.5.3 supports the OpenGL 2.0/2.1 API. However, the (unix)
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shared library version is still 1.5 (i.e. libGL.so.1.5.xxxxxx).
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Bumping the shared library version to 2.x would cause linking problems
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with existing OpenGL applications. Since OpenGL 2.x is backward
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compatible with OpenGL 1.x the shared library version number doesn't
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have to be incremented (which would indicate an incompatible ABI).
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</p>
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<p>
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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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</p>
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<h2>New features</h2>
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<ul>
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<li>OpenGL 2.0 and 2.1 API support.
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<li>Entirely new Shading Language code generator. See the
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<a href="../shading.html">Shading Language</a> page for more information.
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<li>Much faster software execution of vertex, fragment shaders.
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<li>New vertex buffer object (vbo) infrastructure
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<li>Updated glext.h file (version 39)
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<li>Updated glxext.h file (version 19)
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<li>GL_MAX_DRAWBUFFERS is now 4 (software rendering) so
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"multiple render targets" are really supported.
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</ul>
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<h2>Bug fixes</h2>
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<ul>
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<li>Fog was errantly applied when a fragment shader was enabled (bug 9346)
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<li>glPush/PopClientAttrib didn't handle VBO bindings correctly (bug 9445)
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<li>With 32-bit Z buffer, the fragment Z of lines and points was sometimes wrong.
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<li>GL_POST_CONVOLUTION_ALPHA_BIAS/SCALE was broken.
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<li>1D convolution state could effect 2D image transfers
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<li>Overlapping glCopyPixels with negative Y zoom didn't work (bug 10521)
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<li>Fixed a number of framebuffer/renderbuffer reference counting bugs
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<li>Fixed a few bugs in software-emulated alpha planes
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<li>Assorted minor bug fixes in glCopy/DrawPixels, glPixelZoom, etc.
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<li>Assorted DRI driver bug fixes.
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<li>Fixed a number of bugs that prevented "depth-peeling" rendering from working.
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</ul>
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<h2>Internal code changes</h2>
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<ul>
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<li>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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<li>Massive changes to the Shading Language compiler and related state.
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<li>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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<li>Vertex and fragment programs are executed with the same code now.
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<li>The SSE-optimized vertex program path has been removed since it didn't
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support more than 12 temp registers, didn't support branching/looping, etc.
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</ul>
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<h2>To Do (someday) items</h2>
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<ul>
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<li>Switch to freeglut
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<li>Fix linux-glide target/driver.
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<li>Improved lambda and derivative calculation for frag progs.
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</ul>
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<h2>Driver Status</h2>
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<pre>
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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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</pre>
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</div>
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</body>
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</html>
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