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_ABS,
  41    VP_OPCODE_ADD,
  42    VP_OPCODE_ARL,
  43    VP_OPCODE_DP3,
  44    VP_OPCODE_DP4,
  45    VP_OPCODE_DPH,
  46    VP_OPCODE_DST,
  47    VP_OPCODE_END,               /* Placeholder */
  48    VP_OPCODE_EX2,               /* ARB only */
  49    VP_OPCODE_EXP,
  50    VP_OPCODE_FLR,               /* ARB */
  51    VP_OPCODE_FRC,               /* ARB */
  52    VP_OPCODE_LG2,               /* ARB only */
  53    VP_OPCODE_LIT,
  54    VP_OPCODE_LOG,
  55    VP_OPCODE_MAD,
  56    VP_OPCODE_MAX,
  57    VP_OPCODE_MIN,
  58    VP_OPCODE_MOV,
  59    VP_OPCODE_MUL,
  60    VP_OPCODE_POW,               /* ARB only */
  61    VP_OPCODE_PRINT,             /* Mesa only */
  62    VP_OPCODE_RCC,
  63    VP_OPCODE_RCP,
  64    VP_OPCODE_RSQ,
  65    VP_OPCODE_SGE,
  66    VP_OPCODE_SLT,
  67    VP_OPCODE_SUB,
  68    VP_OPCODE_SWZ,               /* ARB only */
  69    VP_OPCODE_XPD                /* ARB only */
  70 };
  71
  72
  73
  74 /* Instruction source register */
  75 struct vp_src_register
  76 {
  77    GLuint File:4;
  78    GLuint Index:8;
  79    GLuint Swizzle:12;
  80    GLuint Negate:4;             /* ARB requires component-wise negation. */
  81    GLuint RelAddr:1;
  82    GLuint pad:3;
  83 };
  84
  85
  86 /* Instruction destination register */
  87 struct vp_dst_register
  88 {
  89    GLuint File:4;
  90    GLuint Index:8;
  91    GLuint WriteMask:4;
  92    GLuint pad:16;
  93 };
  94
  95
  96 /* Vertex program instruction */
  97 struct vp_instruction
  98 {
  99    GLshort Opcode;
 100 #if FEATURE_MESA_program_debug
 101    GLshort StringPos;
 102 #endif
 103    void *Data;  /* some arbitrary data, only used for PRINT instruction now */
 104    struct vp_src_register SrcReg[3];
 105    struct vp_dst_register DstReg;
 106 };
 107
 108
 109 #endif /* VERTPROG_H */