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author | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
commit | b30506dface604c78e445905ce263f166945d67b (patch) | |
tree | 1c23f91f36eb445850b654daa9c5e30bb47072e5 /nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec | |
parent | c032f0e341c981036e9b3245a0e0710ad61599d0 (diff) | |
parent | 663631725ee2d633d9ec5821cd48953ffd188d00 (diff) | |
download | nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.gz nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.bz2 nx-libs-b30506dface604c78e445905ce263f166945d67b.zip |
Include mesa-6.4.2 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec b/nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec new file mode 100644 index 000000000..fb0b441cc --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.2/docs/MESA_pixmap_colormap.spec @@ -0,0 +1,90 @@ +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 |