1 Name 2 3 MESA_release_buffers 4 5 Name Strings 6 7 GLX_MESA_release_buffers 8 9 Contact 10 11 Brian Paul (brian.paul 'at' tungstengraphics.com) 12 13 Status 14 15 Shipping since Mesa 2.0 in October, 1996. 16 17 Version 18 19 Last Modified Date: 8 June 2000 20 21 Number 22 23 217 24 25 Dependencies 26 27 OpenGL 1.0 or later is required. 28 GLX 1.0 or later is required. 29 30 Overview 31 32 Mesa's implementation of GLX is entirely implemented on the client side. 33 Therefore, Mesa cannot immediately detect when an X window or pixmap is 34 destroyed in order to free any ancillary data associated with the window 35 or pixmap. 36 37 The glxMesaReleaseBuffers() function can be used to explicitly indicate 38 when the back color buffer, depth buffer, stencil buffer, and/or accumu- 39 lation buffer associated with a drawable can be freed. 40 41 IP Status 42 43 Open-source; freely implementable. 44 45 Issues 46 47 None. 48 49 New Procedures and Functions 50 51 Bool glXReleaseBuffersMESA( Display *dpy, GLXDrawable d ); 52 53 New Tokens 54 55 None. 56 57 Additions to Chapter 3 of the GLX 1.3 Specification (Functions and Errors) 58 59 The function 60 61 Bool glXReleaseBuffersMESA( Display *dpy, GLXDrawable d ); 62 63 causes all software ancillary buffers (back buffer, depth, stencil, 64 accum, etc) associated with the named drawable to be immediately 65 deallocated. True is returned if <d> is a valid Mesa GLX drawable, 66 else False is returned. After calling glXReleaseBuffersMESA, the 67 drawable should no longer be used for GL rendering. Results of 68 attempting to do so are undefined. 69 70 71 GLX Protocol 72 73 None, since this is a client-side operation. 74 75 Errors 76 77 None. 78 79 New State 80 81 None. 82 83 Revision History 84 85 8 June 2000 - initial specification 86
