1 /* 2 * Copyright © 2013 Keith Packard 3 * 4 * Permission to use, copy, modify, distribute, and sell this software and its 5 * documentation for any purpose is hereby granted without fee, provided that 6 * the above copyright notice appear in all copies and that both that copyright 7 * notice and this permission notice appear in supporting documentation, and 8 * that the name of the copyright holders not be used in advertising or 9 * publicity pertaining to distribution of the software without specific, 10 * written prior permission. The copyright holders make no representations 11 * about the suitability of this software for any purpose. It is provided "as 12 * is" without express or implied warranty. 13 * 14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 20 * OF THIS SOFTWARE. 21 */ 22 23 /* This file was derived from dri2_priv.h which carries the following 24 * copyright: 25 * 26 * Copyright © 2008 Red Hat, Inc. 27 * 28 * Permission is hereby granted, free of charge, to any person obtaining a 29 * copy of this software and associated documentation files (the "Soft- 30 * ware"), to deal in the Software without restriction, including without 31 * limitation the rights to use, copy, modify, merge, publish, distribute, 32 * and/or sell copies of the Software, and to permit persons to whom the 33 * Software is furnished to do so, provided that the above copyright 34 * notice(s) and this permission notice appear in all copies of the Soft- 35 * ware and that both the above copyright notice(s) and this permission 36 * notice appear in supporting documentation. 37 * 38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 39 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- 40 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY 41 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN 42 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- 43 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 44 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 45 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- 46 * MANCE OF THIS SOFTWARE. 47 * 48 * Except as contained in this notice, the name of a copyright holder shall 49 * not be used in advertising or otherwise to promote the sale, use or 50 * other dealings in this Software without prior written authorization of 51 * the copyright holder. 52 * 53 * Authors: 54 * Kristian Høgsberg ([email protected]) 55 */ 56 57 #include <xcb/xcb.h> 58 #include <xcb/dri3.h> 59 #include <xcb/present.h> 60 #include <xcb/sync.h> 61 62 #include "loader_dri3_helper.h" 63 #include "mesa_interface.h" 64 65 struct dri3_screen { 66 struct glx_screen base; 67 68 /* DRI screen is created for display GPU in case of prime gpu offloading. 69 * This screen is used to allocate linear_buffer from 70 * display GPU space in dri3_alloc_render_buffer() function. 71 * In case of not gpu offloading driScreenDisplayGPU will be assigned with 72 * base.frontend_screen. 73 * In case of prime gpu offloading if display and render driver names are different 74 * (potentially not compatible), driScreenDisplayGPU will be NULL but 75 * fd_display_gpu will still hold fd for display driver. 76 */ 77 __DRIscreen *driScreenDisplayGPU; 78 79 /* fd of the GPU used for rendering. */ 80 int fd_render_gpu; 81 /* fd of the GPU used for display. If the same GPU is used for display 82 * and rendering, then fd_render_gpu == fd_display_gpu (no need to use 83 * os_same_file_description). 84 */ 85 int fd_display_gpu; 86 bool prefer_back_buffer_reuse; 87 }; 88 89 struct dri3_drawable { 90 __GLXDRIdrawable base; 91 struct loader_dri3_drawable loader_drawable; 92 93 /* LIBGL_SHOW_FPS support */ 94 uint64_t previous_ust; 95 unsigned frames; 96 }; 97