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 "main/mtypes.h"
  44
  45
  46 extern struct gl_program _mesa_DummyProgram;
  47
  48
  49 extern void
  50 _mesa_init_program(GLcontext *ctx);
  51
  52 extern void
  53 _mesa_free_program_data(GLcontext *ctx);
  54
  55 extern void
  56 _mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string);
  57
  58 extern const GLubyte *
  59 _mesa_find_line_column(const GLubyte *string, const GLubyte *pos,
  60                        GLint *line, GLint *col);
  61
  62
  63 extern struct gl_program *
  64 _mesa_init_vertex_program(GLcontext *ctx,
  65                           struct gl_vertex_program *prog,
  66                           GLenum target, GLuint id);
  67
  68 extern struct gl_program *
  69 _mesa_init_fragment_program(GLcontext *ctx,
  70                             struct gl_fragment_program *prog,
  71                             GLenum target, GLuint id);
  72
  73 extern struct gl_program *
  74 _mesa_new_program(GLcontext *ctx, GLenum target, GLuint id);
  75
  76 extern void
  77 _mesa_delete_program(GLcontext *ctx, struct gl_program *prog);
  78
  79 extern struct gl_program *
  80 _mesa_lookup_program(GLcontext *ctx, GLuint id);
  81
  82 extern void
  83 _mesa_reference_program(GLcontext *ctx,
  84                         struct gl_program **ptr,
  85                         struct gl_program *prog);
  86
  87 static INLINE void
  88 _mesa_reference_vertprog(GLcontext *ctx,
  89                          struct gl_vertex_program **ptr,
  90                          struct gl_vertex_program *prog)
  91 {
  92    _mesa_reference_program(ctx, (struct gl_program **) ptr,
  93                            (struct gl_program *) prog);
  94 }
  95
  96 static INLINE void
  97 _mesa_reference_fragprog(GLcontext *ctx,
  98                          struct gl_fragment_program **ptr,
  99                          struct gl_fragment_program *prog)
 100 {
 101    _mesa_reference_program(ctx, (struct gl_program **) ptr,
 102                            (struct gl_program *) prog);
 103 }
 104
 105 extern struct gl_program *
 106 _mesa_clone_program(GLcontext *ctx, const struct gl_program *prog);
 107
 108 extern  GLboolean
 109 _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count);
 110
 111 extern struct gl_program *
 112 _mesa_combine_programs(GLcontext *ctx,
 113                        const struct gl_program *progA,
 114                        const struct gl_program *progB);
 115
 116 extern GLint
 117 _mesa_find_free_register(const struct gl_program *prog, GLuint regFile);
 118
 119
 120
 121 #endif /* PROGRAM_H */