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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. extern void
  69. _mesa_init_shader(struct gl_context *ctx, struct gl_shader *shader);
  70.  
  71. extern struct gl_shader *
  72. _mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);
  73.  
  74. extern void
  75. _mesa_init_shader_program(struct gl_context *ctx, struct gl_shader_program *prog);
  76.  
  77. extern struct gl_shader_program *
  78. _mesa_lookup_shader_program(struct gl_context *ctx, GLuint name);
  79.  
  80. extern struct gl_shader_program *
  81. _mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
  82.                                 const char *caller);
  83.  
  84. extern void
  85. _mesa_clear_shader_program_data(struct gl_context *ctx,
  86.                                 struct gl_shader_program *shProg);
  87.  
  88. extern void
  89. _mesa_free_shader_program_data(struct gl_context *ctx,
  90.                                struct gl_shader_program *shProg);
  91.  
  92.  
  93.  
  94. extern void
  95. _mesa_init_shader_object_functions(struct dd_function_table *driver);
  96.  
  97. extern void
  98. _mesa_init_shader_state(struct gl_context *ctx);
  99.  
  100. extern void
  101. _mesa_free_shader_state(struct gl_context *ctx);
  102.  
  103.  
  104. static inline gl_shader_type
  105. _mesa_shader_type_to_index(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.    default:
  115.       ASSERT(0 && "bad value in _mesa_shader_type_to_index()");
  116.       return MESA_SHADER_TYPES;
  117.    }
  118. }
  119.  
  120.  
  121. static inline GLenum
  122. _mesa_shader_index_to_type(GLuint i)
  123. {
  124.    static const GLenum enums[MESA_SHADER_TYPES] = {
  125.       GL_VERTEX_SHADER,
  126.       GL_GEOMETRY_SHADER,
  127.       GL_FRAGMENT_SHADER
  128.    };
  129.    if (i >= MESA_SHADER_TYPES)
  130.       return 0;
  131.    else
  132.       return enums[i];
  133. }
  134.  
  135.  
  136. #ifdef __cplusplus
  137. }
  138. #endif
  139.  
  140. #endif /* SHADEROBJ_H */
  141.