src/mesa/main/shaderobj.h

   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 static inline void
  70 _mesa_reference_shader_program(struct gl_context *ctx,
  71                                struct gl_shader_program **ptr,
  72                                struct gl_shader_program *shProg)
  73 {
  74    if (*ptr != shProg)
  75       _mesa_reference_shader_program_(ctx, ptr, shProg);
  76 }
  77
  78
  79 extern void
  80 _mesa_init_shader(struct gl_context *ctx, struct gl_shader *shader);
  81
  82 extern struct gl_shader *
  83 _mesa_new_shader(struct gl_context *ctx, 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 struct gl_shader_program *
  89 _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
  90
  91 extern struct gl_shader_program *
  92 _mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
  93                                 const char *caller);
  94
  95 extern struct gl_shader_program *
  96 _mesa_new_shader_program(GLuint name);
  97
  98 extern void
  99 _mesa_clear_shader_program_data(struct gl_shader_program *shProg);
 100
 101 extern void
 102 _mesa_free_shader_program_data(struct gl_context *ctx,
 103                                struct gl_shader_program *shProg);
 104
 105 extern void
 106 _mesa_delete_shader_program(struct gl_context *ctx,
 107                             struct gl_shader_program *shProg);
 108
 109
 110 extern void
 111 _mesa_init_shader_object_functions(struct dd_function_table *driver);
 112
 113 static inline gl_shader_stage
 114 _mesa_shader_enum_to_shader_stage(GLenum v)
 115 {
 116    switch (v) {
 117    case GL_VERTEX_SHADER:
 118       return MESA_SHADER_VERTEX;
 119    case GL_FRAGMENT_SHADER:
 120       return MESA_SHADER_FRAGMENT;
 121    case GL_GEOMETRY_SHADER:
 122       return MESA_SHADER_GEOMETRY;
 123    case GL_TESS_CONTROL_SHADER:
 124       return MESA_SHADER_TESS_CTRL;
 125    case GL_TESS_EVALUATION_SHADER:
 126       return MESA_SHADER_TESS_EVAL;
 127    case GL_COMPUTE_SHADER:
 128       return MESA_SHADER_COMPUTE;
 129    default:
 130       unreachable("bad value in _mesa_shader_enum_to_shader_stage()");
 131    }
 132 }
 133
 134 /* 8 bytes + another underscore */
 135 #define MESA_SUBROUTINE_PREFIX_LEN 9
 136 static inline const char *
 137 _mesa_shader_stage_to_subroutine_prefix(gl_shader_stage stage)
 138 {
 139   switch (stage) {
 140   case MESA_SHADER_VERTEX:
 141     return "__subu_v";
 142   case MESA_SHADER_GEOMETRY:
 143     return "__subu_g";
 144   case MESA_SHADER_FRAGMENT:
 145     return "__subu_f";
 146   case MESA_SHADER_COMPUTE:
 147     return "__subu_c";
 148   case MESA_SHADER_TESS_CTRL:
 149     return "__subu_t";
 150   case MESA_SHADER_TESS_EVAL:
 151     return "__subu_e";
 152   default:
 153     return NULL;
 154   }
 155 }
 156
 157 static inline gl_shader_stage
 158 _mesa_shader_stage_from_subroutine_uniform(GLenum subuniform)
 159 {
 160    switch (subuniform) {
 161    case GL_VERTEX_SUBROUTINE_UNIFORM:
 162       return MESA_SHADER_VERTEX;
 163    case GL_GEOMETRY_SUBROUTINE_UNIFORM:
 164       return MESA_SHADER_GEOMETRY;
 165    case GL_FRAGMENT_SUBROUTINE_UNIFORM:
 166       return MESA_SHADER_FRAGMENT;
 167    case GL_COMPUTE_SUBROUTINE_UNIFORM:
 168       return MESA_SHADER_COMPUTE;
 169    case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
 170       return MESA_SHADER_TESS_CTRL;
 171    case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
 172       return MESA_SHADER_TESS_EVAL;
 173    }
 174    unreachable("not reached");
 175 }
 176
 177 static inline gl_shader_stage
 178 _mesa_shader_stage_from_subroutine(GLenum subroutine)
 179 {
 180    switch (subroutine) {
 181    case GL_VERTEX_SUBROUTINE:
 182       return MESA_SHADER_VERTEX;
 183    case GL_GEOMETRY_SUBROUTINE:
 184       return MESA_SHADER_GEOMETRY;
 185    case GL_FRAGMENT_SUBROUTINE:
 186       return MESA_SHADER_FRAGMENT;
 187    case GL_COMPUTE_SUBROUTINE:
 188       return MESA_SHADER_COMPUTE;
 189    case GL_TESS_CONTROL_SUBROUTINE:
 190       return MESA_SHADER_TESS_CTRL;
 191    case GL_TESS_EVALUATION_SUBROUTINE:
 192       return MESA_SHADER_TESS_EVAL;
 193    }
 194    unreachable("not reached");
 195 }
 196
 197 static inline GLenum
 198 _mesa_shader_stage_to_subroutine(gl_shader_stage stage)
 199 {
 200    switch (stage) {
 201    case MESA_SHADER_VERTEX:
 202       return GL_VERTEX_SUBROUTINE;
 203    case MESA_SHADER_GEOMETRY:
 204       return GL_GEOMETRY_SUBROUTINE;
 205    case MESA_SHADER_FRAGMENT:
 206       return GL_FRAGMENT_SUBROUTINE;
 207    case MESA_SHADER_COMPUTE:
 208       return GL_COMPUTE_SUBROUTINE;
 209    case MESA_SHADER_TESS_CTRL:
 210       return GL_TESS_CONTROL_SUBROUTINE;
 211    case MESA_SHADER_TESS_EVAL:
 212       return GL_TESS_EVALUATION_SUBROUTINE;
 213    }
 214    unreachable("not reached");
 215 }
 216
 217 static inline GLenum
 218 _mesa_shader_stage_to_subroutine_uniform(gl_shader_stage stage)
 219 {
 220    switch (stage) {
 221    case MESA_SHADER_VERTEX:
 222       return GL_VERTEX_SUBROUTINE_UNIFORM;
 223    case MESA_SHADER_GEOMETRY:
 224       return GL_GEOMETRY_SUBROUTINE_UNIFORM;
 225    case MESA_SHADER_FRAGMENT:
 226       return GL_FRAGMENT_SUBROUTINE_UNIFORM;
 227    case MESA_SHADER_COMPUTE:
 228       return GL_COMPUTE_SUBROUTINE_UNIFORM;
 229    case MESA_SHADER_TESS_CTRL:
 230       return GL_TESS_CONTROL_SUBROUTINE_UNIFORM;
 231    case MESA_SHADER_TESS_EVAL:
 232       return GL_TESS_EVALUATION_SUBROUTINE_UNIFORM;
 233    }
 234    unreachable("not reached");
 235 }
 236
 237 extern bool
 238 _mesa_validate_pipeline_io(struct gl_pipeline_object *);
 239
 240 #ifdef __cplusplus
 241 }
 242 #endif
 243
 244 #endif /* SHADEROBJ_H */