MESA_resize_buffers.spec revision 2f8b4c9d2f9a313af9c1d4ce1dbbd5fdc1fafa16 
1Name
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3    MESA_resize_buffers
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5Name Strings
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7    GL_MESA_resize_buffers
8
9Contact
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11    Brian Paul, brianp 'at' mesa3d.org
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13Status
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15    Shipping (since Mesa version 2.2)
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17Version
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19    $Id: MESA_resize_buffers.spec,v 1.2 2000/04/04 23:29:32 brianp Exp $
20
21Number
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23    196
24
25Dependencies
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27    Mesa 2.2 or later is required.
28
29Overview
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31    Mesa is often used as a client library with no integration with
32    the computer's window system (an X server, for example).  And since
33    Mesa does not have an event loop nor window system callbacks, it
34    cannot properly respond to window system events.  In particular,
35    Mesa cannot automatically detect when a window has been resized.
36
37    Mesa's glViewport command queries the current window size and updates
38    its internal data structors accordingly.  This normally works fine
39    since most applications call glViewport in responce to window size
40    changes.
41
42    In some situations, however, the application may not call glViewport
43    when a window size changes but would still like Mesa to adjust to
44    the new window size.  This extension exports a new function to solve
45    this problem.
46
47New Procedures and Functions
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49    void glResizeBuffersMESA( void )
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51New Tokens
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53    none
54
55Additions to the OpenGL Specification (no particular section)
56
57    The glResizeBuffersMESA command may be called when the client
58    determines that a window has been resized.  Calling
59    glResizeBuffersMESA causes Mesa to query the current window size
60    and adjust its internal data structures.  This may include
61    reallocating depth, stencil, alpha and accumulation buffers.
62
63Additions to the AGL/GLX/WGL Specifications
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65    None
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67Errors
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69    INVALID_OPERATION is generated if ResizeBuffersMESA is called betweeen
70    Begin and End.
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72New State
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74    None.
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76New Implementation Dependent State
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78    None.
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80Revision History
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82  * Revision 1.0 - Initial specification
83