src/mesa/shader/nvvertprog.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.3
   4  *
   5  * Copyright (C) 1999-2004  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 /* Private vertex program types and constants only used by files
  27  * related to vertex programs.
  28  *
  29  * XXX TO-DO: Rename this file "vertprog.h" since it's not NV-specific.
  30  */
  31
  32
  33 #ifndef NVVERTPROG_H
  34 #define NVVERTPROG_H
  35
  36
  37 /* Vertex program opcodes */
  38 enum vp_opcode
  39 {
  40    VP_OPCODE_MOV,
  41    VP_OPCODE_LIT,
  42    VP_OPCODE_RCP,
  43    VP_OPCODE_RSQ,
  44    VP_OPCODE_EXP,
  45    VP_OPCODE_LOG,
  46    VP_OPCODE_MUL,
  47    VP_OPCODE_ADD,
  48    VP_OPCODE_DP3,
  49    VP_OPCODE_DP4,
  50    VP_OPCODE_DST,
  51    VP_OPCODE_MIN,
  52    VP_OPCODE_MAX,
  53    VP_OPCODE_SLT,
  54    VP_OPCODE_SGE,
  55    VP_OPCODE_MAD,
  56    VP_OPCODE_ARL,
  57    VP_OPCODE_DPH,
  58    VP_OPCODE_RCC,
  59    VP_OPCODE_SUB,
  60    VP_OPCODE_ABS,
  61    VP_OPCODE_END,
  62    /* Additional opcodes for GL_ARB_vertex_program */
  63    VP_OPCODE_FLR,
  64    VP_OPCODE_FRC,
  65    VP_OPCODE_EX2,
  66    VP_OPCODE_LG2,
  67    VP_OPCODE_POW,
  68    VP_OPCODE_XPD,
  69    VP_OPCODE_SWZ,
  70    /* Special Mesa opcodes */
  71    VP_OPCODE_PRINT
  72 };
  73
  74
  75
  76 /* Instruction source register */
  77 struct vp_src_register
  78 {
  79    enum register_file File;  /* which register file */
  80    GLint Index;              /* index into register file */
  81    GLubyte Swizzle[4]; /* Each value is 0,1,2,3 for x,y,z,w or */
  82                        /* SWIZZLE_ZERO or SWIZZLE_ONE for VP_OPCODE_SWZ. */
  83    GLboolean Negate;
  84    GLboolean RelAddr;
  85 };
  86
  87
  88 /* Instruction destination register */
  89 struct vp_dst_register
  90 {
  91    enum register_file File;  /* which register file */
  92    GLint Index;              /* index into register file */
  93    GLboolean WriteMask[4];
  94 };
  95
  96
  97 /* Vertex program instruction */
  98 struct vp_instruction
  99 {
 100    enum vp_opcode Opcode;
 101    struct vp_src_register SrcReg[3];
 102    struct vp_dst_register DstReg;
 103 #if FEATURE_MESA_program_debug
 104    GLint StringPos;
 105 #endif
 106    void *Data;  /* some arbitrary data, only used for PRINT instruction now */
 107 };
 108
 109
 110 #endif /* VERTPROG_H */