83 lines
1.9 KiB
Ruby
83 lines
1.9 KiB
Ruby
Name
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MESA_resize_buffers
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Name Strings
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GL_MESA_resize_buffers
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Contact
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Brian Paul (brian.paul 'at' tungstengraphics.com)
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Status
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Shipping (since Mesa version 2.2)
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Version
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$Id: MESA_resize_buffers.spec,v 1.1.1.1 2006/11/25 18:49:28 matthieu Exp $
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Number
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196
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Dependencies
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Mesa 2.2 or later is required.
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Overview
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Mesa is often used as a client library with no integration with
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the computer's window system (an X server, for example). And since
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Mesa does not have an event loop nor window system callbacks, it
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cannot properly respond to window system events. In particular,
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Mesa cannot automatically detect when a window has been resized.
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Mesa's glViewport command queries the current window size and updates
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its internal data structors accordingly. This normally works fine
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since most applications call glViewport in responce to window size
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changes.
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In some situations, however, the application may not call glViewport
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when a window size changes but would still like Mesa to adjust to
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the new window size. This extension exports a new function to solve
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this problem.
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New Procedures and Functions
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void glResizeBuffersMESA( void )
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New Tokens
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none
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Additions to the OpenGL Specification (no particular section)
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The glResizeBuffersMESA command may be called when the client
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determines that a window has been resized. Calling
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glResizeBuffersMESA causes Mesa to query the current window size
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and adjust its internal data structures. This may include
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reallocating depth, stencil, alpha and accumulation buffers.
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Additions to the AGL/GLX/WGL Specifications
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None
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Errors
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INVALID_OPERATION is generated if ResizeBuffersMESA is called betweeen
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Begin and End.
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New State
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None.
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New Implementation Dependent State
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None.
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Revision History
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* Revision 1.0 - Initial specification
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