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
34 void
vmw_svga_winsys_shader_reference(struct vmw_svga_winsys_shader ** pdst,struct vmw_svga_winsys_shader * src)35 vmw_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