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      1 /*
      2  * Mesa 3-D graphics library
      3  * Version:  6.5.3
      4  *
      5  * Copyright (C) 2004-2007  Brian Paul   All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included
     15  * in all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     22  * CONNECTION WITH THE SOFTWARE OR THE USE OR 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_FRAGMENT_SHADER,
    127       GL_GEOMETRY_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