xref: /third_party/mesa3d/src/mesa/main/shaderobj.h (revision bf215546) 
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 "compiler/shader_enums.h"
32#include "program/link_program.h"
33#include "util/macros.h"
34
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40struct gl_shader_program_data;
41struct gl_linked_shader;
42struct dd_function_table;
43struct gl_pipeline_object;
44
45/**
46 * Internal functions
47 */
48
49extern void
50_mesa_init_shader_state(struct gl_context * ctx);
51
52extern void
53_mesa_free_shader_state(struct gl_context *ctx);
54
55
56extern void
57_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
58                       struct gl_shader *sh);
59
60extern struct gl_shader *
61_mesa_lookup_shader(struct gl_context *ctx, GLuint name);
62
63extern struct gl_shader *
64_mesa_lookup_shader_err(struct gl_context *ctx, GLuint name, const char *caller);
65
66
67
68extern void
69_mesa_reference_shader_program_(struct gl_context *ctx,
70                               struct gl_shader_program **ptr,
71                               struct gl_shader_program *shProg);
72
73void
74_mesa_reference_shader_program_data(struct gl_shader_program_data **ptr,
75                                    struct gl_shader_program_data *data);
76
77static inline void
78_mesa_reference_shader_program(struct gl_context *ctx,
79                               struct gl_shader_program **ptr,
80                               struct gl_shader_program *shProg)
81{
82   if (*ptr != shProg)
83      _mesa_reference_shader_program_(ctx, ptr, shProg);
84}
85
86extern struct gl_shader *
87_mesa_new_shader(GLuint name, gl_shader_stage type);
88
89extern void
90_mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh);
91
92extern void
93_mesa_delete_linked_shader(struct gl_context *ctx,
94                           struct gl_linked_shader *sh);
95
96extern struct gl_shader_program *
97_mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
98
99extern struct gl_shader_program *
100_mesa_lookup_shader_program_err_glthread(struct gl_context *ctx, GLuint name,
101                                         bool glthread, const char *caller);
102
103extern struct gl_shader_program *
104_mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
105                                const char *caller);
106
107extern struct gl_shader_program *
108_mesa_new_shader_program(GLuint name);
109
110extern struct gl_shader_program_data *
111_mesa_create_shader_program_data(void);
112
113extern void
114_mesa_clear_shader_program_data(struct gl_context *ctx,
115                                struct gl_shader_program *shProg);
116
117extern void
118_mesa_free_shader_program_data(struct gl_context *ctx,
119                               struct gl_shader_program *shProg);
120
121extern void
122_mesa_delete_shader_program(struct gl_context *ctx,
123                            struct gl_shader_program *shProg);
124
125static inline gl_shader_stage
126_mesa_shader_enum_to_shader_stage(GLenum v)
127{
128   switch (v) {
129   case GL_VERTEX_SHADER:
130      return MESA_SHADER_VERTEX;
131   case GL_FRAGMENT_SHADER:
132      return MESA_SHADER_FRAGMENT;
133   case GL_GEOMETRY_SHADER:
134      return MESA_SHADER_GEOMETRY;
135   case GL_TESS_CONTROL_SHADER:
136      return MESA_SHADER_TESS_CTRL;
137   case GL_TESS_EVALUATION_SHADER:
138      return MESA_SHADER_TESS_EVAL;
139   case GL_COMPUTE_SHADER:
140      return MESA_SHADER_COMPUTE;
141   default:
142      unreachable("bad value in _mesa_shader_enum_to_shader_stage()");
143   }
144}
145
146/* 8 bytes + another underscore */
147#define MESA_SUBROUTINE_PREFIX_LEN 9
148static inline const char *
149_mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)
150{
151  switch (stage) {
152  case MESA_SHADER_VERTEX:
153    return "__subu_v";
154  case MESA_SHADER_GEOMETRY:
155    return "__subu_g";
156  case MESA_SHADER_FRAGMENT:
157    return "__subu_f";
158  case MESA_SHADER_COMPUTE:
159    return "__subu_c";
160  case MESA_SHADER_TESS_CTRL:
161    return "__subu_t";
162  case MESA_SHADER_TESS_EVAL:
163    return "__subu_e";
164  default:
165    return NULL;
166  }
167}
168
169static inline gl_shader_stage
170_mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)
171{
172   switch (subuniform) {
173   case GL_VERTEX_SUBROUTINE_UNIFORM:
174      return MESA_SHADER_VERTEX;
175   case GL_GEOMETRY_SUBROUTINE_UNIFORM:
176      return MESA_SHADER_GEOMETRY;
177   case GL_FRAGMENT_SUBROUTINE_UNIFORM:
178      return MESA_SHADER_FRAGMENT;
179   case GL_COMPUTE_SUBROUTINE_UNIFORM:
180      return MESA_SHADER_COMPUTE;
181   case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
182      return MESA_SHADER_TESS_CTRL;
183   case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
184      return MESA_SHADER_TESS_EVAL;
185   }
186   unreachable("not reached");
187}
188
189static inline gl_shader_stage
190_mesa_shader_stage_from_subroutine(GLenum subroutine)
191{
192   switch (subroutine) {
193   case GL_VERTEX_SUBROUTINE:
194      return MESA_SHADER_VERTEX;
195   case GL_GEOMETRY_SUBROUTINE:
196      return MESA_SHADER_GEOMETRY;
197   case GL_FRAGMENT_SUBROUTINE:
198      return MESA_SHADER_FRAGMENT;
199   case GL_COMPUTE_SUBROUTINE:
200      return MESA_SHADER_COMPUTE;
201   case GL_TESS_CONTROL_SUBROUTINE:
202      return MESA_SHADER_TESS_CTRL;
203   case GL_TESS_EVALUATION_SUBROUTINE:
204      return MESA_SHADER_TESS_EVAL;
205   default:
206      unreachable("not reached");
207   }
208}
209
210static inline GLenum
211_mesa_shader_stage_to_subroutine(gl_shader_stage stage)
212{
213   switch (stage) {
214   case MESA_SHADER_VERTEX:
215      return GL_VERTEX_SUBROUTINE;
216   case MESA_SHADER_GEOMETRY:
217      return GL_GEOMETRY_SUBROUTINE;
218   case MESA_SHADER_FRAGMENT:
219      return GL_FRAGMENT_SUBROUTINE;
220   case MESA_SHADER_COMPUTE:
221      return GL_COMPUTE_SUBROUTINE;
222   case MESA_SHADER_TESS_CTRL:
223      return GL_TESS_CONTROL_SUBROUTINE;
224   case MESA_SHADER_TESS_EVAL:
225      return GL_TESS_EVALUATION_SUBROUTINE;
226   default:
227      unreachable("not reached");
228   }
229}
230
231static inline GLenum
232_mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)
233{
234   switch (stage) {
235   case MESA_SHADER_VERTEX:
236      return GL_VERTEX_SUBROUTINE_UNIFORM;
237   case MESA_SHADER_GEOMETRY:
238      return GL_GEOMETRY_SUBROUTINE_UNIFORM;
239   case MESA_SHADER_FRAGMENT:
240      return GL_FRAGMENT_SUBROUTINE_UNIFORM;
241   case MESA_SHADER_COMPUTE:
242      return GL_COMPUTE_SUBROUTINE_UNIFORM;
243   case MESA_SHADER_TESS_CTRL:
244      return GL_TESS_CONTROL_SUBROUTINE_UNIFORM;
245   case MESA_SHADER_TESS_EVAL:
246      return GL_TESS_EVALUATION_SUBROUTINE_UNIFORM;
247   default:
248      unreachable("not reached");
249   }
250}
251
252extern bool
253_mesa_validate_pipeline_io(struct gl_pipeline_object *);
254
255#ifdef __cplusplus
256}
257#endif
258
259#endif /* SHADEROBJ_H */
260