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-Name
-
- MESA_pixmap_colormap
-
-Name Strings
-
- GLX_MESA_pixmap_colormap
-
-Contact
-
- Brian Paul (brian.paul 'at' tungstengraphics.com)
-
-Status
-
- Shipping since Mesa 1.2.8 in May, 1996.
-
-Version
-
- Last Modified Date: 8 June 2000
-
-Number
-
- 216
-
-Dependencies
-
- OpenGL 1.0 or later is required.
- GLX 1.0 or later is required.
-
-Overview
-
- Since Mesa allows RGB rendering into drawables with PseudoColor,
- StaticColor, GrayScale and StaticGray visuals, Mesa needs a colormap
- in order to compute pixel values during rendering.
-
- The colormap associated with a window can be queried with normal
- Xlib functions but there is no colormap associated with pixmaps.
-
- The glXCreateGLXPixmapMESA function is an alternative to glXCreateGLXPixmap
- which allows specification of a colormap.
-
-IP Status
-
- Open-source; freely implementable.
-
-Issues
-
- None.
-
-New Procedures and Functions
-
- GLXPixmap glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visual,
- Pixmap pixmap, Colormap cmap );
-
-New Tokens
-
- None.
-
-Additions to Chapter 3 of the GLX 1.3 Specification (Functions and Errors)
-
- Add to section 3.4.2 Off Screen Rendering
-
- The Mesa implementation of GLX allows RGB rendering into X windows and
- pixmaps of any visual class, not just TrueColor or DirectColor. In order
- to compute pixel values from RGB values Mesa requires a colormap.
-
- The function
-
- GLXPixmap glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visual,
- Pixmap pixmap, Colormap cmap );
-
- allows one to create a GLXPixmap with a specific colormap. The image
- rendered into the pixmap may then be copied to a window (which uses the
- same colormap and visual) with the expected results.
-
-GLX Protocol
-
- None since this is a client-side extension.
-
-Errors
-
- None.
-
-New State
-
- None.
-
-Revision History
-
- 8 June 2000 - initial specification