GL_ARB_pixel_buffer_object - buffer objects for pixel read/write functions.
GL_EXT_framebuffer_object - allows render-to-texture and provides a
- window-system indepedent Pbuffer facility
+ window-system indepedent Pbuffer facility.
The Mesa CVS tree contains a couple tests of this extension.
DirectFB driver, contributed by Claudio Ciccani. See docs/README.directfb
contexts so they can't be deleted until they're unbound in _all_ contexts.
+
GL_EXT_framebuffer_object changes
---------------------------------
-XXX describe all the changes made for this extension.
+Implementing this extension involved changing a lot of code (for the better).
+
+The gl_framebuffer object now a collection of gl_renderbuffer objects.
+Renderbuffers may store colors, stencil indices, or depth values. The
+gl_framebuffer and gl_renderbuffer types are object-oriented in design.
+
+All the old RGB, color index, stencil and depth-related span functions for
+reading/writing pixels from/to buffers has changed. Now, all pixels are
+read/written through a set of common renderbuffer functions (methods).
+Most device drivers have been updated for these changes, but some haven't.
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-$Id: RELNOTES-6.3,v 3.11 2005/07/19 21:01:46 brianp Exp $
+$Id: RELNOTES-6.3,v 3.12 2005/07/20 18:07:11 brianp Exp $
- GL_OES_read_format extension (Ian Romanick)
- DirectFB driver (Claudio Ciccani)
- x86_64 vertex transformation code (Mikko T.)
+ - Updated GL/glext.h to version 29
Changes:
- added -stereo option for glxgears demo (Jacek Rosik)
- updated the PBuffer demo code in xdemos/ directory
Bug fixes:
- some functions didn't support PBO functionality
- glGetTexImage didn't convert color index images to RGBA as required
-
+ - fragment program texcoords were sometimes wrong for points and lines
+ - fixed problem with negative dot product in arbfplight, fplight demos
+ - fixed bug in perspective correction of antialiased, textured lines
+ - querying GL_POST_CONVOLUTION_ALPHA_BIAS_EXT returned wrong value
+ - fixed a couple per-pixel fog bugs (Soju Matsumoto)
+ - glGetBooleanv(GL_FRAGMENT_PROGRAM_BINDING_NV) was broken
+ - fixed float parsing bug in ARB frag/vert programs (bug 2520)
+ - XMesaGetDepthBuffer() returned incorrect value for bytesPerValue
+ - GL_COLOR_MATERIAL with glColor3 didn't properly set diffuse alpha
+ - glXChooseFBConfig() crashed if attribList pointer was NULL
+ - program state.light[n].spot.direction.w was wrong value (bug 3083)
+ - fragment program fog option required glEnable(GL_FOG) - wrong.
+ - glColorTable() could produce a Mesa implementation error (bug 3135)
+ - RasterPos could get corrupted by color index rendering path
+ - Removed bad XTranslateCoordinates call when rendering to Pixmaps
+ - glPopAttrib() didn't properly restore GL_TEXTURE_GEN enable state
+ - fixed a few Darwin compilation problems
<b>Download / Install</b>
<ul>
<li><a href="http://www.sourceforge.net/projects/mesa3d" target="_parent">Stable Release (6.2.1)</a>
+<li><a href="http://www.sourceforge.net/projects/mesa3d" target="_parent">Devel Release (6.3)</a>
<li><a href="download.html" target="MainFrame">Downloading/Unpacking</a>
<li><a href="install.html" target="MainFrame">Compilation/Installation</a>
<li><a href="glu.html" target="MainFrame">SGI's GLU</a>
<H1>News</H1>
+<h2>July 20, 2005</h2>
+<p>
+Mesa 6.3 has been released.
+This is a development release with new features, changes and bug fixes.
+</p>
+<pre>
+ New:
+ - GL_EXT_framebuffer_object extension
+ - GL_ARB_draw_buffers extension
+ - GL_ARB_pixel_buffer_object extension
+ - GL_OES_read_format extension (Ian Romanick)
+ - DirectFB driver (Claudio Ciccani)
+ - x86_64 vertex transformation code (Mikko T.)
+ Changes:
+ - added -stereo option for glxgears demo (Jacek Rosik)
+ - updated the PBuffer demo code in xdemos/ directory
+ - glDeleteTextures/Programs/Buffers() now makes the object ID
+ available for immediate re-use
+ - assorted 64-bit clean-ups fixes (x86_64 and Win64)
+ - lots of internal changes for GL_EXT_framebuffer_object
+ Bug fixes:
+ - some functions didn't support PBO functionality
+ - glGetTexImage didn't convert color index images to RGBA as required
+ - fragment program texcoords were sometimes wrong for points and lines
+ - fixed problem with negative dot product in arbfplight, fplight demos
+ - fixed bug in perspective correction of antialiased, textured lines
+ - querying GL_POST_CONVOLUTION_ALPHA_BIAS_EXT returned wrong value
+ - fixed a couple per-pixel fog bugs (Soju Matsumoto)
+ - glGetBooleanv(GL_FRAGMENT_PROGRAM_BINDING_NV) was broken
+ - fixed float parsing bug in ARB frag/vert programs (bug 2520)
+ - XMesaGetDepthBuffer() returned incorrect value for bytesPerValue
+ - GL_COLOR_MATERIAL with glColor3 didn't properly set diffuse alpha
+ - glXChooseFBConfig() crashed if attribList pointer was NULL
+ - program state.light[n].spot.direction.w was wrong value (bug 3083)
+ - fragment program fog option required glEnable(GL_FOG) - wrong.
+ - glColorTable() could produce a Mesa implementation error (bug 3135)
+ - RasterPos could get corrupted by color index rendering path
+ - Removed bad XTranslateCoordinates call when rendering to Pixmaps
+ - glPopAttrib() didn't properly restore GL_TEXTURE_GEN enable state
+ - fixed a few Darwin compilation problems
+</pre>
+
+
<h2>December 9, 2004</h2>
<p>
Mesa 6.2.1 has been released.
<hr>
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+$Id: news.html,v 3.21 2005/07/20 18:07:11 brianp Exp $
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