svga_shader.h revision af69d88d 
1/**********************************************************
2 * Copyright 2008-2012 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#ifndef SVGA_SHADER_H
27#define SVGA_SHADER_H
28
29#include "svga3d_reg.h"
30
31struct svga_shader_variant;
32
33enum pipe_error
34svga_define_shader(struct svga_context *svga,
35                   SVGA3dShaderType type,
36                   struct svga_shader_variant *variant);
37
38enum pipe_error
39svga_destroy_shader_variant(struct svga_context *svga,
40                            SVGA3dShaderType type,
41                            struct svga_shader_variant *variant);
42
43
44/**
45 * Check if a shader's bytecode exceeds the device limits.
46 */
47static INLINE boolean
48svga_shader_too_large(const struct svga_context *svga,
49                      const struct svga_shader_variant *variant)
50{
51   if (svga_have_gb_objects(svga)) {
52      return FALSE;
53   }
54
55   if (variant->nr_tokens * sizeof(variant->tokens[0])
56       + sizeof(SVGA3dCmdDefineShader) + sizeof(SVGA3dCmdHeader)
57       < SVGA_CB_MAX_COMMAND_SIZE) {
58      return FALSE;
59   }
60
61   return TRUE;
62}
63
64
65#endif /* SVGA_SHADER_H */
66