1/********************************************************** 2 * Copyright 2009-2015 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26 27#include "svga_cmd.h" 28#include "util/u_debug.h" 29#include "util/u_memory.h" 30 31#include "vmw_shader.h" 32#include "vmw_screen.h" 33 34void 35vmw_svga_winsys_shader_reference(struct vmw_svga_winsys_shader **pdst, 36 struct vmw_svga_winsys_shader *src) 37{ 38 struct pipe_reference *src_ref; 39 struct pipe_reference *dst_ref; 40 struct vmw_svga_winsys_shader *dst; 41 42 if(pdst == NULL || *pdst == src) 43 return; 44 45 dst = *pdst; 46 47 src_ref = src ? &src->refcnt : NULL; 48 dst_ref = dst ? &dst->refcnt : NULL; 49 50 if (pipe_reference(dst_ref, src_ref)) { 51 struct svga_winsys_screen *sws = &dst->screen->base; 52 53 if (!sws->have_vgpu10) 54 vmw_ioctl_shader_destroy(dst->screen, dst->shid); 55#ifdef DEBUG 56 /* to detect dangling pointers */ 57 assert(p_atomic_read(&dst->validated) == 0); 58 dst->shid = SVGA3D_INVALID_ID; 59#endif 60 sws->buffer_destroy(sws, dst->buf); 61 FREE(dst); 62 } 63 64 *pdst = src; 65} 66