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/*
* Mesa 3-D graphics library
* Version: 5.1
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* Private vertex program types and constants only used by files
* related to vertex programs.
*/
#ifndef NVVERTPROG_H
#define NVVERTPROG_H
#define VP_NUM_INPUT_REGS MAX_NV_VERTEX_PROGRAM_INPUTS
#define VP_NUM_OUTPUT_REGS MAX_NV_VERTEX_PROGRAM_OUTPUTS
#define VP_NUM_TEMP_REGS MAX_NV_VERTEX_PROGRAM_TEMPS
#define VP_NUM_PROG_REGS MAX_NV_VERTEX_PROGRAM_PARAMS
/* Location of register groups within the whole register file */
#define VP_INPUT_REG_START 0
#define VP_INPUT_REG_END (VP_INPUT_REG_START + VP_NUM_INPUT_REGS - 1)
#define VP_OUTPUT_REG_START (VP_INPUT_REG_END + 1)
#define VP_OUTPUT_REG_END (VP_OUTPUT_REG_START + VP_NUM_OUTPUT_REGS - 1)
#define VP_TEMP_REG_START (VP_OUTPUT_REG_END + 1)
#define VP_TEMP_REG_END (VP_TEMP_REG_START + VP_NUM_TEMP_REGS - 1)
#define VP_PROG_REG_START (VP_TEMP_REG_END + 1)
#define VP_PROG_REG_END (VP_PROG_REG_START + VP_NUM_PROG_REGS - 1)
/* for GL_ARB_v_p SWZ instruction */
#define SWIZZLE_ZERO 100
#define SWIZZLE_ONE 101
/* Vertex program opcodes */
enum vp_opcode
{
VP_OPCODE_MOV,
VP_OPCODE_LIT,
VP_OPCODE_RCP,
VP_OPCODE_RSQ,
VP_OPCODE_EXP,
VP_OPCODE_LOG,
VP_OPCODE_MUL,
VP_OPCODE_ADD,
VP_OPCODE_DP3,
VP_OPCODE_DP4,
VP_OPCODE_DST,
VP_OPCODE_MIN,
VP_OPCODE_MAX,
VP_OPCODE_SLT,
VP_OPCODE_SGE,
VP_OPCODE_MAD,
VP_OPCODE_ARL,
VP_OPCODE_DPH,
VP_OPCODE_RCC,
VP_OPCODE_SUB,
VP_OPCODE_ABS,
VP_OPCODE_END,
/* Additional opcodes for GL_ARB_vertex_program */
VP_OPCODE_FLR,
VP_OPCODE_FRC,
VP_OPCODE_EX2,
VP_OPCODE_LG2,
VP_OPCODE_POW,
VP_OPCODE_XPD,
VP_OPCODE_SWZ
};
/* Instruction source register */
struct vp_src_register
{
GLint Register; /* or the offset from the address register */
GLubyte Swizzle[4]; /* Each value is 0,1,2,3 for x,y,z,w or */
/* SWIZZLE_ZERO or SWIZZLE_ONE for VP_OPCODE_SWZ. */
GLboolean Negate;
GLboolean RelAddr;
};
/* Instruction destination register */
struct vp_dst_register
{
GLint Register;
GLboolean WriteMask[4];
};
/* Vertex program instruction */
struct vp_instruction
{
enum vp_opcode Opcode;
struct vp_src_register SrcReg[3];
struct vp_dst_register DstReg;
};
#endif /* VERTPROG_H */
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