src/mesa/shader/arbprogparse.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  *
   5  * Copyright (C) 1999-2005  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 ARBPROGPARSE_H
  27 #define ARBPROGPARSE_H
  28
  29 #include "context.h"
  30 #include "mtypes.h"
  31 #include "nvvertprog.h"
  32 #include "nvfragprog.h"
  33
  34
  35 #define MAX_INSTRUCTIONS 256
  36
  37
  38 /**
  39  * This is basically a union of the vertex_program and fragment_program
  40  * structs that we can use to parse the program into
  41  *
  42  * XXX we can probably get rid of this entirely someday.
  43  */
  44 struct arb_program
  45 {
  46    struct program Base;
  47    struct program_parameter_list *Parameters;
  48    GLbitfield InputsRead;
  49    GLbitfield OutputsWritten;
  50
  51    GLuint Position;       /* Just used for error reporting while parsing */
  52    GLuint MajorVersion;
  53    GLuint MinorVersion;
  54
  55    /* ARB_vertex_program specifics */
  56    struct vp_instruction VPInstructions[MAX_INSTRUCTIONS];
  57
  58    /* Options currently recognized by the parser */
  59    /* ARB_fp */
  60    GLenum PrecisionOption; /* GL_DONT_CARE, GL_NICEST or GL_FASTEST */
  61    GLenum FogOption;       /* GL_NONE, GL_LINEAR, GL_EXP or GL_EXP2 */
  62
  63    /* ARB_fp & _vp */
  64    GLboolean HintPositionInvariant;
  65
  66    /* ARB_fragment_program specifics */
  67    struct fp_instruction FPInstructions[MAX_INSTRUCTIONS];
  68    GLbitfield TexturesUsed[MAX_TEXTURE_IMAGE_UNITS];
  69    GLuint NumAluInstructions;
  70    GLuint NumTexInstructions;
  71    GLuint NumTexIndirections;
  72
  73    GLboolean UsesKill;
  74 };
  75
  76
  77 extern GLboolean
  78 _mesa_parse_arb_program( GLcontext *ctx, const GLubyte *str, GLsizei len,
  79                          struct arb_program *program );
  80
  81 #endif