src/mesa/main/nvvertprog.h

   1 /* $Id: nvvertprog.h,v 1.2 2003/04/07 14:57:27 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  5.1
   6  *
   7  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 /* Private vertex program types and constants only used by files
  29  * related to vertex programs.
  30  */
  31
  32 #ifndef NVVERTPROG_H
  33 #define NVVERTPROG_H
  34
  35
  36 #define VP_NUM_INPUT_REGS   MAX_NV_VERTEX_PROGRAM_INPUTS
  37 #define VP_NUM_OUTPUT_REGS  MAX_NV_VERTEX_PROGRAM_OUTPUTS
  38 #define VP_NUM_TEMP_REGS    MAX_NV_VERTEX_PROGRAM_TEMPS
  39 #define VP_NUM_PROG_REGS    MAX_NV_VERTEX_PROGRAM_PARAMS
  40
  41 /* Location of register groups within the whole register file */
  42 #define VP_INPUT_REG_START  0
  43 #define VP_INPUT_REG_END    (VP_INPUT_REG_START + VP_NUM_INPUT_REGS - 1)
  44 #define VP_OUTPUT_REG_START (VP_INPUT_REG_END + 1)
  45 #define VP_OUTPUT_REG_END   (VP_OUTPUT_REG_START + VP_NUM_OUTPUT_REGS - 1)
  46 #define VP_TEMP_REG_START   (VP_OUTPUT_REG_END + 1)
  47 #define VP_TEMP_REG_END     (VP_TEMP_REG_START + VP_NUM_TEMP_REGS - 1)
  48 #define VP_PROG_REG_START   (VP_TEMP_REG_END + 1)
  49 #define VP_PROG_REG_END     (VP_PROG_REG_START + VP_NUM_PROG_REGS - 1)
  50
  51
  52 /* Vertex program opcodes */
  53 enum vp_opcode
  54 {
  55    VP_OPCODE_MOV,
  56    VP_OPCODE_LIT,
  57    VP_OPCODE_RCP,
  58    VP_OPCODE_RSQ,
  59    VP_OPCODE_EXP,
  60    VP_OPCODE_LOG,
  61    VP_OPCODE_MUL,
  62    VP_OPCODE_ADD,
  63    VP_OPCODE_DP3,
  64    VP_OPCODE_DP4,
  65    VP_OPCODE_DST,
  66    VP_OPCODE_MIN,
  67    VP_OPCODE_MAX,
  68    VP_OPCODE_SLT,
  69    VP_OPCODE_SGE,
  70    VP_OPCODE_MAD,
  71    VP_OPCODE_ARL,
  72    VP_OPCODE_DPH,
  73    VP_OPCODE_RCC,
  74    VP_OPCODE_SUB,
  75    VP_OPCODE_ABS,
  76    VP_OPCODE_END
  77 };
  78
  79
  80 /* Instruction source register */
  81 struct vp_src_register
  82 {
  83    GLint Register;    /* or the offset from the address register */
  84    GLuint Swizzle[4];
  85    GLboolean Negate;
  86    GLboolean RelAddr;
  87 };
  88
  89
  90 /* Instruction destination register */
  91 struct vp_dst_register
  92 {
  93    GLint Register;
  94    GLboolean WriteMask[4];
  95 };
  96
  97
  98 /* Vertex program instruction */
  99 struct vp_instruction
 100 {
 101    enum vp_opcode Opcode;
 102    struct vp_src_register SrcReg[3];
 103    struct vp_dst_register DstReg;
 104 };
 105
 106
 107 #endif /* VERTPROG_H */