13a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org/********************************************************** 23a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * Copyright 2009 VMware, Inc. All rights reserved. 33a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * 43a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * Permission is hereby granted, free of charge, to any person 53a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * obtaining a copy of this software and associated documentation 63a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * files (the "Software"), to deal in the Software without 73a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * restriction, including without limitation the rights to use, copy, 83a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * modify, merge, publish, distribute, sublicense, and/or sell copies 93a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * of the Software, and to permit persons to whom the Software is 103a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * furnished to do so, subject to the following conditions: 113a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * 123a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * The above copyright notice and this permission notice shall be 133a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * included in all copies or substantial portions of the Software. 143a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * 153a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 163a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 173a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 183a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 193a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 203a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 213a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 223a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * SOFTWARE. 233a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org * 243a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org **********************************************************/ 253a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 263a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 273a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#include "svga_cmd.h" 283a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#include "util/u_debug.h" 293a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#include "util/u_memory.h" 303a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 313a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#include "vmw_surface.h" 323a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#include "vmw_screen.h" 333a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 343a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.orgvoid 353a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.orgvmw_svga_winsys_surface_reference(struct vmw_svga_winsys_surface **pdst, 363a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org struct vmw_svga_winsys_surface *src) 373a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org{ 383a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org struct pipe_reference *src_ref; 393a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org struct pipe_reference *dst_ref; 403a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org struct vmw_svga_winsys_surface *dst; 413a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 423a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org if(pdst == NULL || *pdst == src) 433a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org return; 443a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 453a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org dst = *pdst; 463a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 473a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org src_ref = src ? &src->refcnt : NULL; 483a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org dst_ref = dst ? &dst->refcnt : NULL; 493a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 50760fd893ba809a7a5daa25c2749ff502f7186e83kbr@chromium.org if (pipe_reference(dst_ref, src_ref)) { 513a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org vmw_ioctl_surface_destroy(dst->screen, dst->sid); 523a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#ifdef DEBUG 533a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org /* to detect dangling pointers */ 543a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org assert(p_atomic_read(&dst->validated) == 0); 553a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org dst->sid = SVGA3D_INVALID_ID; 563a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org#endif 573a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org FREE(dst); 583a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org } 593a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org 603a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org *pdst = src; 613a0db227ffe90888ad760c61a63226988c974e0apatrick@chromium.org} 62