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1 /*
2  * Copyright © 2011 Intel Corporation
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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 /* This file declares stripped-down versions of functions that
25  * normally exist outside of the glsl folder, so that they can be used
26  * when running the GLSL compiler standalone (for unit testing or
27  * compiling builtins).
28  */
29 
30 #ifndef STANDALONE_SCAFFOLDING_H
31 #define STANDALONE_SCAFFOLDING_H
32 
33 #include <assert.h>
34 #include "main/menums.h"
35 #include "program/prog_statevars.h"
36 
37 extern "C" void
38 _mesa_warning(struct gl_context *ctx, const char *fmtString, ... );
39 
40 extern "C" void
41 _mesa_problem(struct gl_context *ctx, const char *fmtString, ... );
42 
43 extern "C" void
44 _mesa_reference_shader_program_data(struct gl_context *ctx,
45                                     struct gl_shader_program_data **ptr,
46                                     struct gl_shader_program_data *data);
47 
48 extern "C" void
49 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
50                        struct gl_shader *sh);
51 
52 extern "C" void
53 _mesa_reference_program_(struct gl_context *ctx, struct gl_program **ptr,
54                          struct gl_program *prog);
55 
56 extern "C" struct gl_shader *
57 _mesa_new_shader(GLuint name, gl_shader_stage stage);
58 
59 extern "C" void
60 _mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh);
61 
62 extern "C" void
63 _mesa_delete_linked_shader(struct gl_context *ctx,
64                            struct gl_linked_shader *sh);
65 
66 extern "C" void
67 _mesa_clear_shader_program_data(struct gl_context *ctx,
68                                 struct gl_shader_program *);
69 
70 extern "C" void
71 _mesa_shader_debug(struct gl_context *ctx, GLenum type, GLuint *id,
72                    const char *msg);
73 
74 extern "C" GLbitfield
75 _mesa_program_state_flags(const gl_state_index16 state[STATE_LENGTH]);
76 
77 
78 extern "C" char *
79 _mesa_program_state_string(const gl_state_index16 state[STATE_LENGTH]);
80 
81 static inline gl_shader_stage
_mesa_shader_enum_to_shader_stage(GLenum v)82 _mesa_shader_enum_to_shader_stage(GLenum v)
83 {
84    switch (v) {
85    case GL_VERTEX_SHADER:
86       return MESA_SHADER_VERTEX;
87    case GL_FRAGMENT_SHADER:
88       return MESA_SHADER_FRAGMENT;
89    case GL_GEOMETRY_SHADER:
90       return MESA_SHADER_GEOMETRY;
91    case GL_TESS_CONTROL_SHADER:
92       return MESA_SHADER_TESS_CTRL;
93    case GL_TESS_EVALUATION_SHADER:
94       return MESA_SHADER_TESS_EVAL;
95    case GL_COMPUTE_SHADER:
96       return MESA_SHADER_COMPUTE;
97    default:
98       assert(!"bad value in _mesa_shader_enum_to_shader_stage()");
99       return MESA_SHADER_VERTEX;
100    }
101 }
102 
103 /**
104  * Initialize the given gl_context structure to a reasonable set of
105  * defaults representing the minimum capabilities required by the
106  * OpenGL spec.
107  *
108  * This is used when compiling builtin functions and in testing, when
109  * we don't have a connection to an actual driver.
110  */
111 void initialize_context_to_defaults(struct gl_context *ctx, gl_api api);
112 
113 
114 #endif /* STANDALONE_SCAFFOLDING_H */
115