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 "main/glheader.h"
31 #include "main/mtypes.h"
32 #include "program/ir_to_mesa.h"
33
34
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39
40 /**
41 * Internal functions
42 */
43
44 extern void
45 _mesa_init_shader_state(struct gl_context * ctx);
46
47 extern void
48 _mesa_free_shader_state(struct gl_context *ctx);
49
50
51 extern void
52 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
53 struct gl_shader *sh);
54
55 extern struct gl_shader *
56 _mesa_lookup_shader(struct gl_context *ctx, GLuint name);
57
58 extern struct gl_shader *
59 _mesa_lookup_shader_err(struct gl_context *ctx, GLuint name, const char *caller);
60
61
62
63 extern void
64 _mesa_reference_shader_program_(struct gl_context *ctx,
65 struct gl_shader_program **ptr,
66 struct gl_shader_program *shProg);
67
68 void
69 _mesa_reference_shader_program_data(struct gl_context *ctx,
70 struct gl_shader_program_data **ptr,
71 struct gl_shader_program_data *data);
72
73 static inline void
_mesa_reference_shader_program(struct gl_context * ctx,struct gl_shader_program ** ptr,struct gl_shader_program * shProg)74 _mesa_reference_shader_program(struct gl_context *ctx,
75 struct gl_shader_program **ptr,
76 struct gl_shader_program *shProg)
77 {
78 if (*ptr != shProg)
79 _mesa_reference_shader_program_(ctx, ptr, shProg);
80 }
81
82 extern struct gl_shader *
83 _mesa_new_shader(GLuint name, gl_shader_stage type);
84
85 extern void
86 _mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh);
87
88 extern void
89 _mesa_delete_linked_shader(struct gl_context *ctx,
90 struct gl_linked_shader *sh);
91
92 extern struct gl_shader_program *
93 _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
94
95 extern struct gl_shader_program *
96 _mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
97 const char *caller);
98
99 extern struct gl_shader_program *
100 _mesa_new_shader_program(GLuint name);
101
102 extern struct gl_shader_program_data *
103 _mesa_create_shader_program_data(void);
104
105 extern void
106 _mesa_clear_shader_program_data(struct gl_context *ctx,
107 struct gl_shader_program *shProg);
108
109 extern void
110 _mesa_free_shader_program_data(struct gl_context *ctx,
111 struct gl_shader_program *shProg);
112
113 extern void
114 _mesa_delete_shader_program(struct gl_context *ctx,
115 struct gl_shader_program *shProg);
116
117
118 extern void
119 _mesa_init_shader_object_functions(struct dd_function_table *driver);
120
121 static inline gl_shader_stage
_mesa_shader_enum_to_shader_stage(GLenum v)122 _mesa_shader_enum_to_shader_stage(GLenum v)
123 {
124 switch (v) {
125 case GL_VERTEX_SHADER:
126 return MESA_SHADER_VERTEX;
127 case GL_FRAGMENT_SHADER:
128 return MESA_SHADER_FRAGMENT;
129 case GL_GEOMETRY_SHADER:
130 return MESA_SHADER_GEOMETRY;
131 case GL_TESS_CONTROL_SHADER:
132 return MESA_SHADER_TESS_CTRL;
133 case GL_TESS_EVALUATION_SHADER:
134 return MESA_SHADER_TESS_EVAL;
135 case GL_COMPUTE_SHADER:
136 return MESA_SHADER_COMPUTE;
137 default:
138 unreachable("bad value in _mesa_shader_enum_to_shader_stage()");
139 }
140 }
141
142 /* 8 bytes + another underscore */
143 #define MESA_SUBROUTINE_PREFIX_LEN 9
144 static inline const char *
_mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)145 _mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)
146 {
147 switch (stage) {
148 case MESA_SHADER_VERTEX:
149 return "__subu_v";
150 case MESA_SHADER_GEOMETRY:
151 return "__subu_g";
152 case MESA_SHADER_FRAGMENT:
153 return "__subu_f";
154 case MESA_SHADER_COMPUTE:
155 return "__subu_c";
156 case MESA_SHADER_TESS_CTRL:
157 return "__subu_t";
158 case MESA_SHADER_TESS_EVAL:
159 return "__subu_e";
160 default:
161 return NULL;
162 }
163 }
164
165 static inline gl_shader_stage
_mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)166 _mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)
167 {
168 switch (subuniform) {
169 case GL_VERTEX_SUBROUTINE_UNIFORM:
170 return MESA_SHADER_VERTEX;
171 case GL_GEOMETRY_SUBROUTINE_UNIFORM:
172 return MESA_SHADER_GEOMETRY;
173 case GL_FRAGMENT_SUBROUTINE_UNIFORM:
174 return MESA_SHADER_FRAGMENT;
175 case GL_COMPUTE_SUBROUTINE_UNIFORM:
176 return MESA_SHADER_COMPUTE;
177 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
178 return MESA_SHADER_TESS_CTRL;
179 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
180 return MESA_SHADER_TESS_EVAL;
181 }
182 unreachable("not reached");
183 }
184
185 static inline gl_shader_stage
_mesa_shader_stage_from_subroutine(GLenum subroutine)186 _mesa_shader_stage_from_subroutine(GLenum subroutine)
187 {
188 switch (subroutine) {
189 case GL_VERTEX_SUBROUTINE:
190 return MESA_SHADER_VERTEX;
191 case GL_GEOMETRY_SUBROUTINE:
192 return MESA_SHADER_GEOMETRY;
193 case GL_FRAGMENT_SUBROUTINE:
194 return MESA_SHADER_FRAGMENT;
195 case GL_COMPUTE_SUBROUTINE:
196 return MESA_SHADER_COMPUTE;
197 case GL_TESS_CONTROL_SUBROUTINE:
198 return MESA_SHADER_TESS_CTRL;
199 case GL_TESS_EVALUATION_SUBROUTINE:
200 return MESA_SHADER_TESS_EVAL;
201 }
202 unreachable("not reached");
203 }
204
205 static inline GLenum
_mesa_shader_stage_to_subroutine(gl_shader_stage stage)206 _mesa_shader_stage_to_subroutine(gl_shader_stage stage)
207 {
208 switch (stage) {
209 case MESA_SHADER_VERTEX:
210 return GL_VERTEX_SUBROUTINE;
211 case MESA_SHADER_GEOMETRY:
212 return GL_GEOMETRY_SUBROUTINE;
213 case MESA_SHADER_FRAGMENT:
214 return GL_FRAGMENT_SUBROUTINE;
215 case MESA_SHADER_COMPUTE:
216 return GL_COMPUTE_SUBROUTINE;
217 case MESA_SHADER_TESS_CTRL:
218 return GL_TESS_CONTROL_SUBROUTINE;
219 case MESA_SHADER_TESS_EVAL:
220 return GL_TESS_EVALUATION_SUBROUTINE;
221 case MESA_SHADER_NONE:
222 break;
223 }
224 unreachable("not reached");
225 }
226
227 static inline GLenum
_mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)228 _mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)
229 {
230 switch (stage) {
231 case MESA_SHADER_VERTEX:
232 return GL_VERTEX_SUBROUTINE_UNIFORM;
233 case MESA_SHADER_GEOMETRY:
234 return GL_GEOMETRY_SUBROUTINE_UNIFORM;
235 case MESA_SHADER_FRAGMENT:
236 return GL_FRAGMENT_SUBROUTINE_UNIFORM;
237 case MESA_SHADER_COMPUTE:
238 return GL_COMPUTE_SUBROUTINE_UNIFORM;
239 case MESA_SHADER_TESS_CTRL:
240 return GL_TESS_CONTROL_SUBROUTINE_UNIFORM;
241 case MESA_SHADER_TESS_EVAL:
242 return GL_TESS_EVALUATION_SUBROUTINE_UNIFORM;
243 case MESA_SHADER_NONE:
244 break;
245 }
246 unreachable("not reached");
247 }
248
249 extern bool
250 _mesa_validate_pipeline_io(struct gl_pipeline_object *);
251
252 #ifdef __cplusplus
253 }
254 #endif
255
256 #endif /* SHADEROBJ_H */
257