summaryrefslogtreecommitdiff
path: root/docs/MESA_pixmap_colormap.spec
diff options
context:
space:
mode:
authorBrian Paul <brian.paul@tungstengraphics.com>2000-06-09 00:22:02 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2000-06-09 00:22:02 +0000
commit7b2c0f9148eb7eb30326173899ed366fcef8d437 (patch)
tree17bde65a25c3eaf0feaf1f5dbd06043626e28386 /docs/MESA_pixmap_colormap.spec
parent4c07bd5709830bd11cb29d4d8b8a56e757dc0365 (diff)
initial check-in
Diffstat (limited to 'docs/MESA_pixmap_colormap.spec')
-rw-r--r--docs/MESA_pixmap_colormap.spec90
1 files changed, 90 insertions, 0 deletions
diff --git a/docs/MESA_pixmap_colormap.spec b/docs/MESA_pixmap_colormap.spec
new file mode 100644
index 0000000000..63e9df9c91
--- /dev/null
+++ b/docs/MESA_pixmap_colormap.spec
@@ -0,0 +1,90 @@
+Name
+
+ MESA_copy_sub_buffer
+
+Name Strings
+
+ GLX_MESA_copy_sub_buffer
+
+Contact
+
+ Brian Paul (brian 'at' mesa3d.org)
+
+Status
+
+ Shipping since Mesa 1.2.8 in May, 1996.
+
+Version
+
+ Last Modified Date: 8 June 2000
+
+Number
+
+ ???
+
+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