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1 /*
2  * Copyright 2017 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * on the rights to use, copy, modify, merge, publish, distribute, sub
8  * license, and/or sell copies of the Software, and to permit persons to whom
9  * the Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifndef TGSI_FROM_MESA_H
25 #define TGSI_FROM_MESA_H
26 
27 #include <stdbool.h>
28 
29 #include "pipe/p_compiler.h"
30 #include "pipe/p_defines.h"
31 #include "pipe/p_shader_tokens.h"
32 
33 #include "compiler/shader_enums.h"
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 
40 void
41 tgsi_get_gl_varying_semantic(gl_varying_slot attr,
42                              bool needs_texcoord_semantic,
43                              unsigned *semantic_name,
44                              unsigned *semantic_index);
45 
46 unsigned
47 tgsi_get_generic_gl_varying_index(gl_varying_slot attr,
48                                   bool needs_texcoord_semantic);
49 
50 void
51 tgsi_get_gl_frag_result_semantic(gl_frag_result frag_result,
52                                  unsigned *semantic_name,
53                                  unsigned *semantic_index);
54 
55 enum tgsi_semantic
56 tgsi_get_sysval_semantic(unsigned sysval);
57 
58 enum tgsi_interpolate_mode
59 tgsi_get_interp_mode(enum glsl_interp_mode mode, bool color);
60 
61 static inline enum pipe_shader_type
pipe_shader_type_from_mesa(gl_shader_stage stage)62 pipe_shader_type_from_mesa(gl_shader_stage stage)
63 {
64    switch (stage) {
65    case MESA_SHADER_VERTEX:
66       return PIPE_SHADER_VERTEX;
67    case MESA_SHADER_TESS_CTRL:
68       return PIPE_SHADER_TESS_CTRL;
69    case MESA_SHADER_TESS_EVAL:
70       return PIPE_SHADER_TESS_EVAL;
71    case MESA_SHADER_GEOMETRY:
72       return PIPE_SHADER_GEOMETRY;
73    case MESA_SHADER_FRAGMENT:
74       return PIPE_SHADER_FRAGMENT;
75    case MESA_SHADER_COMPUTE:
76    case MESA_SHADER_KERNEL:
77       return PIPE_SHADER_COMPUTE;
78    default:
79       unreachable("bad shader stage");
80    }
81 }
82 
83 static inline gl_shader_stage
tgsi_processor_to_shader_stage(unsigned processor)84 tgsi_processor_to_shader_stage(unsigned processor)
85 {
86    switch (processor) {
87    case PIPE_SHADER_FRAGMENT:  return MESA_SHADER_FRAGMENT;
88    case PIPE_SHADER_VERTEX:    return MESA_SHADER_VERTEX;
89    case PIPE_SHADER_GEOMETRY:  return MESA_SHADER_GEOMETRY;
90    case PIPE_SHADER_TESS_CTRL: return MESA_SHADER_TESS_CTRL;
91    case PIPE_SHADER_TESS_EVAL: return MESA_SHADER_TESS_EVAL;
92    case PIPE_SHADER_COMPUTE:   return MESA_SHADER_COMPUTE;
93    default:
94       unreachable("invalid TGSI processor");
95    }
96 }
97 
98 #ifdef __cplusplus
99 }
100 #endif
101 
102 #endif /* TGSI_FROM_MESA_H */
103