1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2004-2007 Brian Paul All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 #ifndef SHADEROBJ_H
27 #define SHADEROBJ_H
28
29
30 #include "util/glheader.h"
31 #include "compiler/shader_enums.h"
32 #include "util/macros.h"
33
34
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39 struct gl_shader_program_data;
40 struct gl_linked_shader;
41 struct dd_function_table;
42 struct gl_pipeline_object;
43
44 /**
45 * Internal functions
46 */
47
48 extern void
49 _mesa_init_shader_state(struct gl_context * ctx);
50
51 extern void
52 _mesa_free_shader_state(struct gl_context *ctx);
53
54
55 extern void
56 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
57 struct gl_shader *sh);
58
59 extern struct gl_shader *
60 _mesa_lookup_shader(struct gl_context *ctx, GLuint name);
61
62 extern struct gl_shader *
63 _mesa_lookup_shader_err(struct gl_context *ctx, GLuint name, const char *caller);
64
65
66
67 extern void
68 _mesa_reference_shader_program_(struct gl_context *ctx,
69 struct gl_shader_program **ptr,
70 struct gl_shader_program *shProg);
71
72 void
73 _mesa_reference_shader_program_data(struct gl_shader_program_data **ptr,
74 struct gl_shader_program_data *data);
75
76 static inline void
_mesa_reference_shader_program(struct gl_context * ctx,struct gl_shader_program ** ptr,struct gl_shader_program * shProg)77 _mesa_reference_shader_program(struct gl_context *ctx,
78 struct gl_shader_program **ptr,
79 struct gl_shader_program *shProg)
80 {
81 if (*ptr != shProg)
82 _mesa_reference_shader_program_(ctx, ptr, shProg);
83 }
84
85 extern struct gl_shader *
86 _mesa_new_shader(GLuint name, gl_shader_stage type);
87
88 extern void
89 _mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh);
90
91 extern void
92 _mesa_delete_linked_shader(struct gl_context *ctx,
93 struct gl_linked_shader *sh);
94
95 extern struct gl_shader_program *
96 _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
97
98 extern struct gl_shader_program *
99 _mesa_lookup_shader_program_err_glthread(struct gl_context *ctx, GLuint name,
100 bool glthread, const char *caller);
101
102 extern struct gl_shader_program *
103 _mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
104 const char *caller);
105
106 extern struct gl_shader_program *
107 _mesa_new_shader_program(GLuint name);
108
109 extern struct gl_shader_program_data *
110 _mesa_create_shader_program_data(void);
111
112 extern void
113 _mesa_clear_shader_program_data(struct gl_context *ctx,
114 struct gl_shader_program *shProg);
115
116 extern void
117 _mesa_free_shader_program_data(struct gl_context *ctx,
118 struct gl_shader_program *shProg);
119
120 extern void
121 _mesa_delete_shader_program(struct gl_context *ctx,
122 struct gl_shader_program *shProg);
123
124 static inline gl_shader_stage
_mesa_shader_enum_to_shader_stage(GLenum v)125 _mesa_shader_enum_to_shader_stage(GLenum v)
126 {
127 switch (v) {
128 case GL_VERTEX_SHADER:
129 return MESA_SHADER_VERTEX;
130 case GL_FRAGMENT_SHADER:
131 return MESA_SHADER_FRAGMENT;
132 case GL_GEOMETRY_SHADER:
133 return MESA_SHADER_GEOMETRY;
134 case GL_TESS_CONTROL_SHADER:
135 return MESA_SHADER_TESS_CTRL;
136 case GL_TESS_EVALUATION_SHADER:
137 return MESA_SHADER_TESS_EVAL;
138 case GL_COMPUTE_SHADER:
139 return MESA_SHADER_COMPUTE;
140 default:
141 unreachable("bad value in _mesa_shader_enum_to_shader_stage()");
142 }
143 }
144
145 /* 8 bytes + another underscore */
146 #define MESA_SUBROUTINE_PREFIX_LEN 9
147 static inline const char *
_mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)148 _mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)
149 {
150 switch (stage) {
151 case MESA_SHADER_VERTEX:
152 return "__subu_v";
153 case MESA_SHADER_GEOMETRY:
154 return "__subu_g";
155 case MESA_SHADER_FRAGMENT:
156 return "__subu_f";
157 case MESA_SHADER_COMPUTE:
158 return "__subu_c";
159 case MESA_SHADER_TESS_CTRL:
160 return "__subu_t";
161 case MESA_SHADER_TESS_EVAL:
162 return "__subu_e";
163 default:
164 unreachable("bad value in _mesa_shader_stage_to_subroutine_prefix()");
165 }
166 }
167
168 static inline gl_shader_stage
_mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)169 _mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)
170 {
171 switch (subuniform) {
172 case GL_VERTEX_SUBROUTINE_UNIFORM:
173 return MESA_SHADER_VERTEX;
174 case GL_GEOMETRY_SUBROUTINE_UNIFORM:
175 return MESA_SHADER_GEOMETRY;
176 case GL_FRAGMENT_SUBROUTINE_UNIFORM:
177 return MESA_SHADER_FRAGMENT;
178 case GL_COMPUTE_SUBROUTINE_UNIFORM:
179 return MESA_SHADER_COMPUTE;
180 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
181 return MESA_SHADER_TESS_CTRL;
182 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
183 return MESA_SHADER_TESS_EVAL;
184 }
185 unreachable("not reached");
186 }
187
188 static inline gl_shader_stage
_mesa_shader_stage_from_subroutine(GLenum subroutine)189 _mesa_shader_stage_from_subroutine(GLenum subroutine)
190 {
191 switch (subroutine) {
192 case GL_VERTEX_SUBROUTINE:
193 return MESA_SHADER_VERTEX;
194 case GL_GEOMETRY_SUBROUTINE:
195 return MESA_SHADER_GEOMETRY;
196 case GL_FRAGMENT_SUBROUTINE:
197 return MESA_SHADER_FRAGMENT;
198 case GL_COMPUTE_SUBROUTINE:
199 return MESA_SHADER_COMPUTE;
200 case GL_TESS_CONTROL_SUBROUTINE:
201 return MESA_SHADER_TESS_CTRL;
202 case GL_TESS_EVALUATION_SUBROUTINE:
203 return MESA_SHADER_TESS_EVAL;
204 default:
205 unreachable("not reached");
206 }
207 }
208
209 static inline GLenum
_mesa_shader_stage_to_subroutine(gl_shader_stage stage)210 _mesa_shader_stage_to_subroutine(gl_shader_stage stage)
211 {
212 switch (stage) {
213 case MESA_SHADER_VERTEX:
214 return GL_VERTEX_SUBROUTINE;
215 case MESA_SHADER_GEOMETRY:
216 return GL_GEOMETRY_SUBROUTINE;
217 case MESA_SHADER_FRAGMENT:
218 return GL_FRAGMENT_SUBROUTINE;
219 case MESA_SHADER_COMPUTE:
220 return GL_COMPUTE_SUBROUTINE;
221 case MESA_SHADER_TESS_CTRL:
222 return GL_TESS_CONTROL_SUBROUTINE;
223 case MESA_SHADER_TESS_EVAL:
224 return GL_TESS_EVALUATION_SUBROUTINE;
225 default:
226 unreachable("not reached");
227 }
228 }
229
230 static inline GLenum
_mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)231 _mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)
232 {
233 switch (stage) {
234 case MESA_SHADER_VERTEX:
235 return GL_VERTEX_SUBROUTINE_UNIFORM;
236 case MESA_SHADER_GEOMETRY:
237 return GL_GEOMETRY_SUBROUTINE_UNIFORM;
238 case MESA_SHADER_FRAGMENT:
239 return GL_FRAGMENT_SUBROUTINE_UNIFORM;
240 case MESA_SHADER_COMPUTE:
241 return GL_COMPUTE_SUBROUTINE_UNIFORM;
242 case MESA_SHADER_TESS_CTRL:
243 return GL_TESS_CONTROL_SUBROUTINE_UNIFORM;
244 case MESA_SHADER_TESS_EVAL:
245 return GL_TESS_EVALUATION_SUBROUTINE_UNIFORM;
246 default:
247 unreachable("not reached");
248 }
249 }
250
251 extern bool
252 _mesa_validate_pipeline_io(struct gl_pipeline_object *);
253
254 #ifdef __cplusplus
255 }
256 #endif
257
258 #endif /* SHADEROBJ_H */
259