352 lines
10 KiB
C++
352 lines
10 KiB
C++
/**
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* @file llpartdata.cpp
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* @brief Particle system data packing
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*
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* $LicenseInfo:firstyear=2003&license=viewergpl$
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*
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* Copyright (c) 2003-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llpartdata.h"
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#include "message.h"
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#include "lldatapacker.h"
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#include "v4coloru.h"
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#include "llsdutil.h"
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#include "llsdutil_math.h"
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const S32 PS_PART_DATA_BLOCK_SIZE = 4 + 2 + 4 + 4 + 2 + 2; // 18
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const S32 PS_DATA_BLOCK_SIZE = 68 + PS_PART_DATA_BLOCK_SIZE; // 68 + 18 = 86
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const F32 MAX_PART_SCALE = 4.f;
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BOOL LLPartData::pack(LLDataPacker &dp)
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{
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LLColor4U coloru;
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dp.packU32(mFlags, "pdflags");
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dp.packFixed(mMaxAge, "pdmaxage", FALSE, 8, 8);
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coloru.setVec(mStartColor);
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dp.packColor4U(coloru, "pdstartcolor");
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coloru.setVec(mEndColor);
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dp.packColor4U(coloru, "pdendcolor");
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dp.packFixed(mStartScale.mV[0], "pdstartscalex", FALSE, 3, 5);
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dp.packFixed(mStartScale.mV[1], "pdstartscaley", FALSE, 3, 5);
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dp.packFixed(mEndScale.mV[0], "pdendscalex", FALSE, 3, 5);
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dp.packFixed(mEndScale.mV[1], "pdendscaley", FALSE, 3, 5);
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return TRUE;
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}
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LLSD LLPartData::asLLSD() const
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{
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LLSD sd = LLSD();
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sd["pdflags"] = ll_sd_from_U32(mFlags);
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sd["pdmaxage"] = mMaxAge;
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sd["pdstartcolor"] = ll_sd_from_color4(mStartColor);
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sd["pdendcolor"] = ll_sd_from_color4(mEndColor);
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sd["pdstartscale"] = ll_sd_from_vector2(mStartScale);
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sd["pdendscale"] = ll_sd_from_vector2(mEndScale);
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return sd;
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}
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bool LLPartData::fromLLSD(LLSD& sd)
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{
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mFlags = ll_U32_from_sd(sd["pdflags"]);
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mMaxAge = (F32)sd["pdmaxage"].asReal();
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mStartColor = ll_color4_from_sd(sd["pdstartcolor"]);
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mEndColor = ll_color4_from_sd(sd["pdendcolor"]);
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mStartScale = ll_vector2_from_sd(sd["pdstartscale"]);
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mEndScale = ll_vector2_from_sd(sd["pdendscale"]);
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return true;
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}
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BOOL LLPartData::unpack(LLDataPacker &dp)
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{
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LLColor4U coloru;
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dp.unpackU32(mFlags, "pdflags");
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dp.unpackFixed(mMaxAge, "pdmaxage", FALSE, 8, 8);
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dp.unpackColor4U(coloru, "pdstartcolor");
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mStartColor.setVec(coloru);
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dp.unpackColor4U(coloru, "pdendcolor");
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mEndColor.setVec(coloru);
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dp.unpackFixed(mStartScale.mV[0], "pdstartscalex", FALSE, 3, 5);
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dp.unpackFixed(mStartScale.mV[1], "pdstartscaley", FALSE, 3, 5);
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dp.unpackFixed(mEndScale.mV[0], "pdendscalex", FALSE, 3, 5);
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dp.unpackFixed(mEndScale.mV[1], "pdendscaley", FALSE, 3, 5);
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return TRUE;
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}
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void LLPartData::setFlags(const U32 flags)
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{
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mFlags = flags;
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}
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void LLPartData::setMaxAge(const F32 max_age)
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{
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mMaxAge = llclamp(max_age, 0.f, 30.f);
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}
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void LLPartData::setStartScale(const F32 xs, const F32 ys)
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{
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mStartScale.mV[VX] = llmin(xs, MAX_PART_SCALE);
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mStartScale.mV[VY] = llmin(ys, MAX_PART_SCALE);
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}
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void LLPartData::setEndScale(const F32 xs, const F32 ys)
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{
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mEndScale.mV[VX] = llmin(xs, MAX_PART_SCALE);
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mEndScale.mV[VY] = llmin(ys, MAX_PART_SCALE);
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}
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void LLPartData::setStartColor(const LLVector3 &rgb)
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{
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mStartColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]);
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}
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void LLPartData::setEndColor(const LLVector3 &rgb)
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{
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mEndColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]);
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}
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void LLPartData::setStartAlpha(const F32 alpha)
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{
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mStartColor.mV[3] = alpha;
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}
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void LLPartData::setEndAlpha(const F32 alpha)
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{
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mEndColor.mV[3] = alpha;
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}
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LLPartSysData::LLPartSysData()
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{
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mCRC = 0;
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mFlags = 0;
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mPartData.mFlags = 0;
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mPartData.mStartColor = LLColor4(1.f, 1.f, 1.f, 1.f);
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mPartData.mEndColor = LLColor4(1.f, 1.f, 1.f, 1.f);
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mPartData.mStartScale = LLVector2(1.f, 1.f);
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mPartData.mEndScale = LLVector2(1.f, 1.f);
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mPartData.mMaxAge = 10.0;
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mMaxAge = 0.0;
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mStartAge = 0.0;
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mPattern = LL_PART_SRC_PATTERN_DROP; // Pattern for particle velocity
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mInnerAngle = 0.0; // Inner angle of PATTERN_ANGLE_*
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mOuterAngle = 0.0; // Outer angle of PATTERN_ANGLE_*
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mBurstRate = 0.1f; // How often to do a burst of particles
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mBurstPartCount = 1; // How many particles in a burst
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mBurstSpeedMin = 1.f; // Minimum particle velocity
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mBurstSpeedMax = 1.f; // Maximum particle velocity
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mBurstRadius = 0.f;
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mNumParticles = 0;
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}
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BOOL LLPartSysData::pack(LLDataPacker &dp)
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{
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dp.packU32(mCRC, "pscrc");
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dp.packU32(mFlags, "psflags");
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dp.packU8(mPattern, "pspattern");
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dp.packFixed(mMaxAge, "psmaxage", FALSE, 8, 8);
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dp.packFixed(mStartAge, "psstartage", FALSE, 8, 8);
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dp.packFixed(mInnerAngle, "psinnerangle", FALSE, 3, 5);
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dp.packFixed(mOuterAngle, "psouterangle", FALSE, 3, 5);
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dp.packFixed(mBurstRate, "psburstrate", FALSE, 8, 8);
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dp.packFixed(mBurstRadius, "psburstradius", FALSE, 8, 8);
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dp.packFixed(mBurstSpeedMin, "psburstspeedmin", FALSE, 8, 8);
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dp.packFixed(mBurstSpeedMax, "psburstspeedmax", FALSE, 8, 8);
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dp.packU8(mBurstPartCount, "psburstpartcount");
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dp.packFixed(mAngularVelocity.mV[0], "psangvelx", TRUE, 8, 7);
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dp.packFixed(mAngularVelocity.mV[1], "psangvely", TRUE, 8, 7);
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dp.packFixed(mAngularVelocity.mV[2], "psangvelz", TRUE, 8, 7);
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dp.packFixed(mPartAccel.mV[0], "psaccelx", TRUE, 8, 7);
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dp.packFixed(mPartAccel.mV[1], "psaccely", TRUE, 8, 7);
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dp.packFixed(mPartAccel.mV[2], "psaccelz", TRUE, 8, 7);
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dp.packUUID(mPartImageID, "psuuid");
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dp.packUUID(mTargetUUID, "pstargetuuid");
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mPartData.pack(dp);
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return TRUE;
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}
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BOOL LLPartSysData::unpack(LLDataPacker &dp)
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{
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dp.unpackU32(mCRC, "pscrc");
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dp.unpackU32(mFlags, "psflags");
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dp.unpackU8(mPattern, "pspattern");
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dp.unpackFixed(mMaxAge, "psmaxage", FALSE, 8, 8);
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dp.unpackFixed(mStartAge, "psstartage", FALSE, 8, 8);
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dp.unpackFixed(mInnerAngle, "psinnerangle", FALSE, 3, 5);
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dp.unpackFixed(mOuterAngle, "psouterangle", FALSE, 3, 5);
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dp.unpackFixed(mBurstRate, "psburstrate", FALSE, 8, 8);
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mBurstRate = llmax(0.01f, mBurstRate);
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dp.unpackFixed(mBurstRadius, "psburstradius", FALSE, 8, 8);
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dp.unpackFixed(mBurstSpeedMin, "psburstspeedmin", FALSE, 8, 8);
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dp.unpackFixed(mBurstSpeedMax, "psburstspeedmax", FALSE, 8, 8);
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dp.unpackU8(mBurstPartCount, "psburstpartcount");
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dp.unpackFixed(mAngularVelocity.mV[0], "psangvelx", TRUE, 8, 7);
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dp.unpackFixed(mAngularVelocity.mV[1], "psangvely", TRUE, 8, 7);
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dp.unpackFixed(mAngularVelocity.mV[2], "psangvelz", TRUE, 8, 7);
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dp.unpackFixed(mPartAccel.mV[0], "psaccelx", TRUE, 8, 7);
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dp.unpackFixed(mPartAccel.mV[1], "psaccely", TRUE, 8, 7);
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dp.unpackFixed(mPartAccel.mV[2], "psaccelz", TRUE, 8, 7);
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dp.unpackUUID(mPartImageID, "psuuid");
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dp.unpackUUID(mTargetUUID, "pstargetuuid");
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mPartData.unpack(dp);
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return TRUE;
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}
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std::ostream& operator<<(std::ostream& s, const LLPartSysData &data)
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{
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s << "Flags: " << std::hex << data.mFlags;
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s << " Pattern: " << std::hex << (U32) data.mPattern << "\n";
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s << "Age: [" << data.mStartAge << ", " << data.mMaxAge << "]\n";
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s << "Angle: [" << data.mInnerAngle << ", " << data.mOuterAngle << "]\n";
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s << "Burst Rate: " << data.mBurstRate << "\n";
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s << "Burst Radius: " << data.mBurstRadius << "\n";
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s << "Burst Speed: [" << data.mBurstSpeedMin << ", " << data.mBurstSpeedMax << "]\n";
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s << "Burst Part Count: " << std::hex << (U32) data.mBurstPartCount << "\n";
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s << "Angular Velocity: " << data.mAngularVelocity << "\n";
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s << "Accel: " << data.mPartAccel;
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return s;
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}
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BOOL LLPartSysData::isNullPS(const S32 block_num)
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{
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U8 ps_data_block[PS_DATA_BLOCK_SIZE];
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U32 crc;
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S32 size;
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// Check size of block
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size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
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if (!size)
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{
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return TRUE;
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}
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else if (size != PS_DATA_BLOCK_SIZE)
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{
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llwarns << "PSBlock is wrong size for particle system data - got " << size << ", expecting " << PS_DATA_BLOCK_SIZE << llendl;
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return TRUE;
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}
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gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE, block_num, PS_DATA_BLOCK_SIZE);
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LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
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dp.unpackU32(crc, "crc");
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if (crc == 0)
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{
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return TRUE;
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}
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return FALSE;
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}
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//static
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BOOL LLPartSysData::packNull()
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{
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U8 ps_data_block[PS_DATA_BLOCK_SIZE];
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gMessageSystem->addBinaryData("PSBlock", ps_data_block, 0);
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return TRUE;
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}
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BOOL LLPartSysData::packBlock()
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{
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U8 ps_data_block[PS_DATA_BLOCK_SIZE];
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LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
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pack(dp);
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// Add to message
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gMessageSystem->addBinaryData("PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE);
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return TRUE;
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}
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BOOL LLPartSysData::unpackBlock(const S32 block_num)
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{
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U8 ps_data_block[PS_DATA_BLOCK_SIZE];
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// Check size of block
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S32 size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
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if (size != PS_DATA_BLOCK_SIZE)
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{
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llwarns << "PSBlock is wrong size for particle system data - got " << size << ", expecting " << PS_DATA_BLOCK_SIZE << llendl;
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return FALSE;
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}
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// Get from message
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gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE, block_num, PS_DATA_BLOCK_SIZE);
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LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
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unpack(dp);
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return TRUE;
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}
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void LLPartSysData::clampSourceParticleRate()
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{
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F32 particle_rate = 0;
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particle_rate = mBurstPartCount/mBurstRate;
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if (particle_rate > 256.f)
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{
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mBurstPartCount = llfloor(((F32)mBurstPartCount)*(256.f/particle_rate));
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}
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}
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void LLPartSysData::setPartAccel(const LLVector3 &accel)
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{
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mPartAccel.mV[VX] = llclamp(accel.mV[VX], -100.f, 100.f);
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mPartAccel.mV[VY] = llclamp(accel.mV[VY], -100.f, 100.f);
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mPartAccel.mV[VZ] = llclamp(accel.mV[VZ], -100.f, 100.f);
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}
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