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Diffstat (limited to 'docs/MESA_resize_buffers.spec')
-rw-r--r-- | docs/MESA_resize_buffers.spec | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/docs/MESA_resize_buffers.spec b/docs/MESA_resize_buffers.spec new file mode 100644 index 00000000000..8c0b033ff26 --- /dev/null +++ b/docs/MESA_resize_buffers.spec @@ -0,0 +1,82 @@ +Name + + MESA_resize_buffers + +Name Strings + + GL_MESA_resize_buffers + +Contact + + Brian Paul, brianp 'at' mesa3d.org + +Status + + Shipping (since Mesa version 2.2) + +Version + + $Id: MESA_resize_buffers.spec,v 1.1 1999/07/20 00:30:41 brianp Exp $ + +Number + + XXX none assigned + +Dependencies + + Mesa 2.2 or later is required. + +Overview + + Mesa is often used as a client library with no integration with + the computer's window system (an X server, for example). And since + Mesa does not have an event loop nor window system callbacks, it + cannot properly respond to window system events. In particular, + Mesa cannot automatically detect when a window has been resized. + + Mesa's glViewport command queries the current window size and updates + its internal data structors accordingly. This normally works fine + since most applications call glViewport in responce to window size + changes. + + In some situations, however, the application may not call glViewport + when a window size changes but would still like Mesa to adjust to + the new window size. This extension exports a new function to solve + this problem. + +New Procedures and Functions + + void glResizeBuffersMESA( void ) + +New Tokens + + none + +Additions to the OpenGL Specification (no particular section) + + The glResizeBuffersMESA command may be called when the client + determines that a window has been resized. Calling + glResizeBuffersMESA causes Mesa to query the current window size + and adjust its internal data structures. This may include + reallocating depth, stencil, alpha and accumulation buffers. + +Additions to the AGL/GLX/WGL Specifications + + None + +Errors + + INVALID_OPERATION is generated if ResizeBuffersMESA is called betweeen + Begin and End. + +New State + + None. + +New Implementation Dependent State + + None. + +Revision History + + * Revision 1.0 - Initial specification |