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_context.h"
32 #include "vmw_shader.h"
33 #include "vmw_buffer.h"
34 #include "vmw_screen.h"
35
36 void
vmw_svga_winsys_shader_reference(struct vmw_svga_winsys_shader ** pdst,struct vmw_svga_winsys_shader * src)37 vmw_svga_winsys_shader_reference(struct vmw_svga_winsys_shader **pdst,
38 struct vmw_svga_winsys_shader *src)
39 {
40 struct pipe_reference *src_ref;
41 struct pipe_reference *dst_ref;
42 struct vmw_svga_winsys_shader *dst;
43
44 if(pdst == NULL || *pdst == src)
45 return;
46
47 dst = *pdst;
48
49 src_ref = src ? &src->refcnt : NULL;
50 dst_ref = dst ? &dst->refcnt : NULL;
51
52 if (pipe_reference(dst_ref, src_ref)) {
53 struct svga_winsys_screen *sws = &dst->screen->base;
54
55 if (!sws->have_vgpu10)
56 vmw_ioctl_shader_destroy(dst->screen, dst->shid);
57 #ifdef DEBUG
58 /* to detect dangling pointers */
59 assert(p_atomic_read(&dst->validated) == 0);
60 dst->shid = SVGA3D_INVALID_ID;
61 #endif
62 sws->buffer_destroy(sws, dst->buf);
63 FREE(dst);
64 }
65
66 *pdst = src;
67 }
68
69
70 /**
71 * A helper function to create a shader object and upload the
72 * shader bytecode and signature if specified to the shader memory.
73 */
74 struct vmw_svga_winsys_shader *
vmw_svga_shader_create(struct svga_winsys_screen * sws,SVGA3dShaderType type,const uint32 * bytecode,uint32 bytecodeLen,const SVGA3dDXShaderSignatureHeader * sgnInfo,uint32 sgnLen)75 vmw_svga_shader_create(struct svga_winsys_screen *sws,
76 SVGA3dShaderType type,
77 const uint32 *bytecode,
78 uint32 bytecodeLen,
79 const SVGA3dDXShaderSignatureHeader *sgnInfo,
80 uint32 sgnLen)
81 {
82 struct vmw_svga_winsys_shader *shader;
83 void *map;
84
85 shader = CALLOC_STRUCT(vmw_svga_winsys_shader);
86 if (!shader)
87 return NULL;
88
89 pipe_reference_init(&shader->refcnt, 1);
90 p_atomic_set(&shader->validated, 0);
91 shader->screen = vmw_winsys_screen(sws);
92 shader->buf = sws->buffer_create(sws, 64,
93 SVGA_BUFFER_USAGE_SHADER,
94 bytecodeLen + sgnLen);
95 if (!shader->buf) {
96 FREE(shader);
97 return NULL;
98 }
99
100 map = sws->buffer_map(sws, shader->buf, PIPE_MAP_WRITE);
101 if (!map) {
102 FREE(shader);
103 return NULL;
104 }
105
106 /* copy the shader bytecode */
107 memcpy(map, bytecode, bytecodeLen);
108
109 /* if shader signature is specified, append it to the bytecode. */
110 if (sgnLen) {
111 assert(sws->have_sm5);
112 map = (char *)map + bytecodeLen;
113 memcpy(map, sgnInfo, sgnLen);
114 }
115 sws->buffer_unmap(sws, shader->buf);
116
117 return shader;
118 }
119