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