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  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, GLenum type);
  84.  
  85. extern struct gl_shader_program *
  86. _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
  87.  
  88. extern struct gl_shader_program *
  89. _mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
  90.                                 const char *caller);
  91.  
  92. extern void
  93. _mesa_clear_shader_program_data(struct gl_shader_program *shProg);
  94.  
  95. extern void
  96. _mesa_free_shader_program_data(struct gl_context *ctx,
  97.                                struct gl_shader_program *shProg);
  98.  
  99.  
  100.  
  101. extern void
  102. _mesa_init_shader_object_functions(struct dd_function_table *driver);
  103.  
  104. static inline gl_shader_stage
  105. _mesa_shader_enum_to_shader_stage(GLenum v)
  106. {
  107.    switch (v) {
  108.    case GL_VERTEX_SHADER:
  109.       return MESA_SHADER_VERTEX;
  110.    case GL_FRAGMENT_SHADER:
  111.       return MESA_SHADER_FRAGMENT;
  112.    case GL_GEOMETRY_SHADER:
  113.       return MESA_SHADER_GEOMETRY;
  114.    case GL_COMPUTE_SHADER:
  115.       return MESA_SHADER_COMPUTE;
  116.    default:
  117.       assert(0 && "bad value in _mesa_shader_enum_to_shader_stage()");
  118.       return MESA_SHADER_VERTEX;
  119.    }
  120. }
  121.  
  122.  
  123. #ifdef __cplusplus
  124. }
  125. #endif
  126.  
  127. #endif /* SHADEROBJ_H */
  128.