src/mesa/shader/program.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5.3
   4  *
   5  * Copyright (C) 1999-2007  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  * \file program.c
  27  * Vertex and fragment program support functions.
  28  * \author Brian Paul
  29  */
  30
  31
  32 /**
  33  * \mainpage Mesa vertex and fragment program module
  34  *
  35  * This module or directory contains most of the code for vertex and
  36  * fragment programs and shaders, including state management, parsers,
  37  * and (some) software routines for executing programs
  38  */
  39
  40 #ifndef PROGRAM_H
  41 #define PROGRAM_H
  42
  43 #include "mtypes.h"
  44
  45
  46 extern struct gl_program _mesa_DummyProgram;
  47
  48
  49 /*
  50  * Internal functions
  51  */
  52
  53 extern void
  54 _mesa_init_program(GLcontext *ctx);
  55
  56 extern void
  57 _mesa_free_program_data(GLcontext *ctx);
  58
  59 extern void
  60 _mesa_update_default_objects_program(GLcontext *ctx);
  61
  62 extern void
  63 _mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string);
  64
  65 extern const GLubyte *
  66 _mesa_find_line_column(const GLubyte *string, const GLubyte *pos,
  67                        GLint *line, GLint *col);
  68
  69
  70 extern struct gl_program *
  71 _mesa_init_vertex_program(GLcontext *ctx,
  72                           struct gl_vertex_program *prog,
  73                           GLenum target, GLuint id);
  74
  75 extern struct gl_program *
  76 _mesa_init_fragment_program(GLcontext *ctx,
  77                             struct gl_fragment_program *prog,
  78                             GLenum target, GLuint id);
  79
  80 extern struct gl_program *
  81 _mesa_new_program(GLcontext *ctx, GLenum target, GLuint id);
  82
  83 extern void
  84 _mesa_delete_program(GLcontext *ctx, struct gl_program *prog);
  85
  86 extern struct gl_program *
  87 _mesa_lookup_program(GLcontext *ctx, GLuint id);
  88
  89 extern void
  90 _mesa_reference_program(GLcontext *ctx,
  91                         struct gl_program **ptr,
  92                         struct gl_program *prog);
  93
  94 static INLINE void
  95 _mesa_reference_vertprog(GLcontext *ctx,
  96                          struct gl_vertex_program **ptr,
  97                          struct gl_vertex_program *prog)
  98 {
  99    _mesa_reference_program(ctx, (struct gl_program **) ptr,
 100                            (struct gl_program *) prog);
 101 }
 102
 103 static INLINE void
 104 _mesa_reference_fragprog(GLcontext *ctx,
 105                          struct gl_fragment_program **ptr,
 106                          struct gl_fragment_program *prog)
 107 {
 108    _mesa_reference_program(ctx, (struct gl_program **) ptr,
 109                            (struct gl_program *) prog);
 110 }
 111
 112 extern struct gl_program *
 113 _mesa_clone_program(GLcontext *ctx, const struct gl_program *prog);
 114
 115 extern  GLboolean
 116 _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count);
 117
 118 extern  GLboolean
 119 _mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count);
 120
 121 extern struct gl_program *
 122 _mesa_combine_programs(GLcontext *ctx,
 123                        const struct gl_program *progA,
 124                        const struct gl_program *progB);
 125
 126 extern GLint
 127 _mesa_find_free_register(const struct gl_program *prog, GLuint regFile);
 128
 129
 130 /*
 131  * API functions common to ARB/NV_vertex/fragment_program
 132  */
 133
 134 extern void GLAPIENTRY
 135 _mesa_BindProgram(GLenum target, GLuint id);
 136
 137 extern void GLAPIENTRY
 138 _mesa_DeletePrograms(GLsizei n, const GLuint *ids);
 139
 140 extern void GLAPIENTRY
 141 _mesa_GenPrograms(GLsizei n, GLuint *ids);
 142
 143
 144
 145 #endif /* PROGRAM_H */