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/*
* Mesa 3-D graphics library
* Version: 5.1
*
* Copyright (C) 1999-2003 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 fragment program types and constants only used by files
* related to fragment programs.
*
* XXX TO-DO: Rename this file "fragprog.h" since it's not NV-specific.
*/
#ifndef NVFRAGPROG_H
#define NVFRAGPROG_H
#include "config.h"
/* output registers */
#define FRAG_OUTPUT_COLR 0
#define FRAG_OUTPUT_COLH 1
#define FRAG_OUTPUT_DEPR 2
/* condition codes */
#define COND_GT 1 /* greater than zero */
#define COND_EQ 2 /* equal to zero */
#define COND_LT 3 /* less than zero */
#define COND_UN 4 /* unordered (NaN) */
#define COND_GE 5 /* greater then or equal to zero */
#define COND_LE 6 /* less then or equal to zero */
#define COND_NE 7 /* not equal to zero */
#define COND_TR 8 /* always true */
#define COND_FL 9 /* always false */
/* instruction precision */
#define FLOAT32 0x1
#define FLOAT16 0x2
#define FIXED12 0x4
/* Fragment program instruction opcodes */
enum fp_opcode {
FP_OPCODE_ABS = 1000, /* ARB_f_p only */
FP_OPCODE_ADD,
FP_OPCODE_CMP, /* ARB_f_p only */
FP_OPCODE_COS,
FP_OPCODE_DDX, /* NV_f_p only */
FP_OPCODE_DDY, /* NV_f_p only */
FP_OPCODE_DP3,
FP_OPCODE_DP4,
FP_OPCODE_DPH, /* ARB_f_p only */
FP_OPCODE_DST,
FP_OPCODE_EX2,
FP_OPCODE_FLR,
FP_OPCODE_FRC,
FP_OPCODE_KIL,
FP_OPCODE_LG2,
FP_OPCODE_LIT,
FP_OPCODE_LRP,
FP_OPCODE_MAD,
FP_OPCODE_MAX,
FP_OPCODE_MIN,
FP_OPCODE_MOV,
FP_OPCODE_MUL,
FP_OPCODE_PK2H, /* NV_f_p only */
FP_OPCODE_PK2US, /* NV_f_p only */
FP_OPCODE_PK4B, /* NV_f_p only */
FP_OPCODE_PK4UB, /* NV_f_p only */
FP_OPCODE_POW,
FP_OPCODE_RCP,
FP_OPCODE_RFL, /* NV_f_p only */
FP_OPCODE_RSQ,
FP_OPCODE_SCS, /* ARB_f_p only */
FP_OPCODE_SEQ, /* NV_f_p only */
FP_OPCODE_SFL, /* NV_f_p only */
FP_OPCODE_SGE, /* NV_f_p only */
FP_OPCODE_SGT, /* NV_f_p only */
FP_OPCODE_SIN,
FP_OPCODE_SLE, /* NV_f_p only */
FP_OPCODE_SLT,
FP_OPCODE_SNE, /* NV_f_p only */
FP_OPCODE_STR, /* NV_f_p only */
FP_OPCODE_SUB,
FP_OPCODE_SWZ, /* ARB_f_p only */
FP_OPCODE_TEX,
FP_OPCODE_TXB, /* ARB_f_p only */
FP_OPCODE_TXD, /* NV_f_p only */
FP_OPCODE_TXP,
FP_OPCODE_UP2H, /* NV_f_p only */
FP_OPCODE_UP2US, /* NV_f_p only */
FP_OPCODE_UP4B, /* NV_f_p only */
FP_OPCODE_UP4UB, /* NV_f_p only */
FP_OPCODE_XPD, /* ARB_f_p only - cross product */
FP_OPCODE_X2D, /* NV_f_p only - 2D matrix multiply */
FP_OPCODE_END /* private opcode */
};
/* Instruction source register */
struct fp_src_register
{
enum register_file File;
GLint Index;
GLuint Swizzle[4];
GLboolean NegateBase; /* negate before absolute value? */
GLboolean Abs; /* take absolute value? */
GLboolean NegateAbs; /* negate after absolute value? */
};
/* Instruction destination register */
struct fp_dst_register
{
enum register_file File;
GLint Index;
GLboolean WriteMask[4];
GLuint CondMask;
GLuint CondSwizzle[4];
};
/* Fragment program instruction */
struct fp_instruction
{
enum fp_opcode Opcode;
struct fp_src_register SrcReg[3];
struct fp_dst_register DstReg;
GLboolean Saturate;
GLboolean UpdateCondRegister;
GLubyte Precision; /* FLOAT32, FLOAT16 or FIXED12 */
GLubyte TexSrcUnit; /* texture unit for TEX, TXD, TXP instructions */
GLubyte TexSrcBit; /* TEXTURE_1D,2D,3D,CUBE,RECT_BIT source target */
#if FEATURE_MESA_program_debug
GLint StringPos;
#endif
};
#endif
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