From 38d6d37f2d982fa959e9e8a4a3f7e1ccfad7b5d4 Mon Sep 17 00:00:00 2001 From: Jacek Antonelli Date: Fri, 15 Aug 2008 23:44:46 -0500 Subject: Second Life viewer sources 1.13.2.12 --- linden/indra/llmessage/partsyspacket.cpp | 1296 ++++++++++++++++++++++++++++++ 1 file changed, 1296 insertions(+) create mode 100644 linden/indra/llmessage/partsyspacket.cpp (limited to 'linden/indra/llmessage/partsyspacket.cpp') diff --git a/linden/indra/llmessage/partsyspacket.cpp b/linden/indra/llmessage/partsyspacket.cpp new file mode 100644 index 0000000..d491540 --- /dev/null +++ b/linden/indra/llmessage/partsyspacket.cpp @@ -0,0 +1,1296 @@ +/** + * @file partsyspacket.cpp + * @brief Object for packing particle system initialization parameters + * before sending them over the network. + * + * Copyright (c) 2000-2007, Linden Research, Inc. + * + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlife.com/developers/opensource/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at http://secondlife.com/developers/opensource/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + */ + +#include "linden_common.h" + +#include "partsyspacket.h" +#include "imageids.h" + +// this function is global +void gSetInitDataDefaults(LLPartInitData *setMe) +{ + U32 i; + + //for(i = 0; i < 18; i++) + //{ + // setMe->k[i] = 0.0f; + //} + + //setMe->kill_p[0] = setMe->kill_p[1] = setMe->kill_p[2] = 0.0f; + //setMe->kill_p[3] = -0.2f; // time parameter, die when t= 5.0f + //setMe->kill_p[4] = 1.0f; + //setMe->kill_p[5] = -0.5f; // or radius == 2 (contracting) + + //setMe->bounce_p[0] = setMe->bounce_p[1] = + // setMe->bounce_p[2] = setMe->bounce_p[3] = 0.0f; + //setMe->bounce_p[4] = 1.0f; + + setMe->bounce_b = 1.0f; + // i just changed the meaning of bounce_b + // its now the attenuation from revlecting your velocity across the normal + // set by bounce_p + + //setMe->pos_ranges[0] = setMe->pos_ranges[2] = setMe->pos_ranges[4] = -1.0f; + //setMe->pos_ranges[1] = setMe->pos_ranges[3] = setMe->pos_ranges[5] = 1.0f; + + //setMe->vel_ranges[0] = setMe->vel_ranges[2] = setMe->vel_ranges[4] = -1.0f; + //setMe->vel_ranges[1] = setMe->vel_ranges[3] = setMe->vel_ranges[5] = 1.0f; + + for(i = 0; i < 3; i++) + { + setMe->diffEqAlpha[i] = 0.0f; + setMe->diffEqScale[i] = 0.0f; + } + + setMe->scale_range[0] = 1.00f; + setMe->scale_range[1] = 5.00f; + setMe->scale_range[2] = setMe->scale_range[3] = 0.0f; + + setMe->alpha_range[0] = setMe->alpha_range[1] = 1.0f; + setMe->alpha_range[2] = setMe->alpha_range[3] = 0.0f; + + setMe->vel_offset[0] = 0.0f; + setMe->vel_offset[1] = 0.0f; + setMe->vel_offset[2] = 0.0f; + + // start dropping particles when I'm more then one sim away + setMe->mDistBeginFadeout = 256.0f; + setMe->mDistEndFadeout = 1.414f * 512.0f; + // stop displaying particles when I'm more then two sim diagonals away + + setMe->mImageUuid = IMG_SHOT; + + for(i = 0; i < 8; i++) + { + setMe->mFlags[i] = 0x00; + } + + setMe->createMe = TRUE; + + setMe->maxParticles = 25; + setMe->initialParticles = 25; + + //These defaults are for an explosion - a short lived set of debris affected by gravity. + //Action flags default to PART_SYS_AFFECTED_BY_WIND + PART_SYS_AFFECTED_BY_GRAVITY + PART_SYS_DISTANCE_DEATH + setMe->mFlags[PART_SYS_ACTION_BYTE] = PART_SYS_AFFECTED_BY_WIND | PART_SYS_AFFECTED_BY_GRAVITY | PART_SYS_DISTANCE_DEATH; + setMe->mFlags[PART_SYS_KILL_BYTE] = PART_SYS_DISTANCE_DEATH + PART_SYS_TIME_DEATH; + + setMe->killPlaneNormal[0] = 0.0f;setMe->killPlaneNormal[1] = 0.0f;setMe->killPlaneNormal[2] = 1.0f; //Straight up + setMe->killPlaneZ = 0.0f; //get local ground z as an approximation if turn on PART_SYS_KILL_PLANE + setMe->bouncePlaneNormal[0] = 0.0f;setMe->bouncePlaneNormal[1] = 0.0f;setMe->bouncePlaneNormal[2] = 1.0f; //Straight up + setMe->bouncePlaneZ = 0.0f; //get local ground z as an approximation if turn on PART_SYS_BOUNCE + setMe->spawnRange = 1.0f; + setMe->spawnFrequency = 0.0f; //Create the instant one dies + setMe->spawnFreqencyRange = 0.0f; + setMe->spawnDirection[0] = 0.0f;setMe->spawnDirection[1] = 0.0f;setMe->spawnDirection[2] = 1.0f; //Straight up + setMe->spawnDirectionRange = 1.0f; //global scattering + setMe->spawnVelocity = 0.75f; + setMe->spawnVelocityRange = 0.25f; //velocity +/- 0.25 + setMe->speedLimit = 1.0f; + + setMe->windWeight = 0.5f; //0.0f means looks like a heavy object (if gravity is on), 1.0f means light and fluffy + setMe->currentGravity[0] = 0.0f;setMe->currentGravity[1] = 0.0f;setMe->currentGravity[2] = -9.81f; + //This has to be constant to allow for compression + + setMe->gravityWeight = 0.5f; //0.0f means boyed by air, 1.0f means it's a lead weight + setMe->globalLifetime = 0.0f; //Arbitrary, but default is no global die, so doesn't matter + setMe->individualLifetime = 5.0f; + setMe->individualLifetimeRange = 1.0f; //Particles last 5 secs +/- 1 + setMe->alphaDecay = 1.0f; //normal alpha fadeout + setMe->scaleDecay = 0.0f; //no scale decay + setMe->distanceDeath = 10.0f; //die if hit unit radius + setMe->dampMotionFactor = 0.0f; + + setMe->windDiffusionFactor[0] = 0.0f; + setMe->windDiffusionFactor[1] = 0.0f; + setMe->windDiffusionFactor[2] = 0.0f; +} + +LLPartSysCompressedPacket::LLPartSysCompressedPacket() +{ + // default constructor for mDefaults called implicitly/automatically here + for(int i = 0; i < MAX_PART_SYS_PACKET_SIZE; i++) + { + mData[i] = '\0'; + } + + gSetInitDataDefaults(&mDefaults); +} + +LLPartSysCompressedPacket::~LLPartSysCompressedPacket() +{ + // no dynamic data is stored by this class, do nothing. +} + +void LLPartSysCompressedPacket::writeFlagByte(LLPartInitData *in) +{ + mData[0] = mData[1] = mData[2] = '\0'; + + U32 i; + //for(i = 1; i < 18; i++) { + // if(in->k[i] != mDefaults.k[i]) + // { + // mData[0] |= PART_SYS_K_MASK; + // break; + // } + //} + + if(in->killPlaneZ != mDefaults.killPlaneZ || + in->killPlaneNormal[0] != mDefaults.killPlaneNormal[0] || + in->killPlaneNormal[1] != mDefaults.killPlaneNormal[1] || + in->killPlaneNormal[2] != mDefaults.killPlaneNormal[2] || + in->distanceDeath != mDefaults.distanceDeath) + { + mData[0] |= PART_SYS_KILL_P_MASK; + } + + + + if(in->bouncePlaneZ != mDefaults.bouncePlaneZ || + in->bouncePlaneNormal[0] != mDefaults.bouncePlaneNormal[0] || + in->bouncePlaneNormal[1] != mDefaults.bouncePlaneNormal[1] || + in->bouncePlaneNormal[2] != mDefaults.bouncePlaneNormal[2]) + { + mData[0] |= PART_SYS_BOUNCE_P_MASK; + } + + if(in->bounce_b != mDefaults.bounce_b) + { + mData[0] |= PART_SYS_BOUNCE_B_MASK; + } + + + //if(in->pos_ranges[0] != mDefaults.pos_ranges[0] || in->pos_ranges[1] != mDefaults.pos_ranges[1] || + // in->pos_ranges[2] != mDefaults.pos_ranges[2] || in->pos_ranges[3] != mDefaults.pos_ranges[3] || + // in->pos_ranges[4] != mDefaults.pos_ranges[4] || in->pos_ranges[5] != mDefaults.pos_ranges[5]) + //{ + // mData[0] |= PART_SYS_POS_RANGES_MASK; + //} + + //if(in->vel_ranges[0] != mDefaults.vel_ranges[0] || in->vel_ranges[1] != mDefaults.vel_ranges[1] || + // in->vel_ranges[2] != mDefaults.vel_ranges[2] || in->vel_ranges[3] != mDefaults.vel_ranges[3] || + // in->vel_ranges[4] != mDefaults.vel_ranges[4] || in->vel_ranges[5] != mDefaults.vel_ranges[5]) + //{ +// mData[0] |= PART_SYS_VEL_RANGES_MASK; + //} + + + if(in->diffEqAlpha[0] != mDefaults.diffEqAlpha[0] || + in->diffEqAlpha[1] != mDefaults.diffEqAlpha[1] || + in->diffEqAlpha[2] != mDefaults.diffEqAlpha[2] || + in->diffEqScale[0] != mDefaults.diffEqScale[0] || + in->diffEqScale[1] != mDefaults.diffEqScale[1] || + in->diffEqScale[2] != mDefaults.diffEqScale[2]) + { + mData[0] |= PART_SYS_ALPHA_SCALE_DIFF_MASK; + } + + + if(in->scale_range[0] != mDefaults.scale_range[0] || + in->scale_range[1] != mDefaults.scale_range[1] || + in->scale_range[2] != mDefaults.scale_range[2] || + in->scale_range[3] != mDefaults.scale_range[3]) + { + mData[0] |= PART_SYS_SCALE_RANGE_MASK; + } + + + if(in->alpha_range[0] != mDefaults.alpha_range[0] || + in->alpha_range[1] != mDefaults.alpha_range[1] || + in->alpha_range[2] != mDefaults.alpha_range[2] || + in->alpha_range[3] != mDefaults.alpha_range[3]) + { + mData[2] |= PART_SYS_BYTE_3_ALPHA_MASK; + } + + if(in->vel_offset[0] != mDefaults.vel_offset[0] || + in->vel_offset[1] != mDefaults.vel_offset[1] || + in->vel_offset[2] != mDefaults.vel_offset[2]) + { + mData[0] |= PART_SYS_VEL_OFFSET_MASK; + } + + + if(in->mImageUuid != mDefaults.mImageUuid) + { + mData[0] |= PART_SYS_M_IMAGE_UUID_MASK; + } + + for( i = 0; i < 8; i++) + { + if(in->mFlags[i]) + { + mData[1] |= 1<mFlags[i]); + } + } + + + if(in->spawnRange != mDefaults.spawnRange || + in->spawnFrequency != mDefaults.spawnFrequency || + in->spawnFreqencyRange != mDefaults.spawnFreqencyRange || + in->spawnDirection[0] != mDefaults.spawnDirection[0] || + in->spawnDirection[1] != mDefaults.spawnDirection[1] || + in->spawnDirection[2] != mDefaults.spawnDirection[2] || + in->spawnDirectionRange != mDefaults.spawnDirectionRange || + in->spawnVelocity != mDefaults.spawnVelocity || + in->spawnVelocityRange != mDefaults.spawnVelocityRange) + { + mData[3] |= PART_SYS_BYTE_SPAWN_MASK; + } + + + if(in->windWeight != mDefaults.windWeight || + in->currentGravity[0] != mDefaults.currentGravity[0] || + in->currentGravity[1] != mDefaults.currentGravity[1] || + in->currentGravity[2] != mDefaults.currentGravity[2] || + in->gravityWeight != mDefaults.gravityWeight) + { + mData[3] |= PART_SYS_BYTE_ENVIRONMENT_MASK; + } + + + if(in->globalLifetime != mDefaults.globalLifetime || + in->individualLifetime != mDefaults.individualLifetime || + in->individualLifetimeRange != mDefaults.individualLifetimeRange) + { + mData[3] |= PART_SYS_BYTE_LIFESPAN_MASK; + } + + + if(in->speedLimit != mDefaults.speedLimit || + in->alphaDecay != mDefaults.alphaDecay || + in->scaleDecay != mDefaults.scaleDecay || + in->dampMotionFactor != mDefaults.dampMotionFactor) + { + mData[3] |= PART_SYS_BYTE_DECAY_DAMP_MASK; + } + + if(in->windDiffusionFactor[0] != mDefaults.windDiffusionFactor[0] || + in->windDiffusionFactor[1] != mDefaults.windDiffusionFactor[1] || + in->windDiffusionFactor[2] != mDefaults.windDiffusionFactor[2]) + { + mData[3] |= PART_SYS_BYTE_WIND_DIFF_MASK; + } +} + +F32 floatFromTwoBytes(S8 bMant, S8 bExp) +{ + F32 result = bMant; + while(bExp > 0) + { + result *= 2.0f; + bExp--; + } + while(bExp < 0) + { + result *= 0.5f; + bExp++; + } + return result; +} + +void twoBytesFromFloat(F32 fIn, S8 &bMant, S8 &bExp) +{ + bExp = 0; + if(fIn > 127.0f) + { + fIn = 127.0f; + } + if(fIn < -127.0f) + { + fIn = -127.0f; + } + while(fIn < 64 && fIn > -64 && bExp > -127) + { + fIn *= 2.0f; + bExp--; + } + while((fIn > 128 || fIn < -128) && bExp < 127) + { + fIn *= 0.5f; + bExp++; + } + bMant = (S8)fIn; +} + + + +/* +U32 LLPartSysCompressedPacket::writeK(LLPartInitData *in, U32 startByte) +{ + U32 i, kFlag, i_mod_eight; + S8 bMant, bExp; + + kFlag = startByte; + + startByte += 3; // 3 bytes contain enough room for 18 flag bits + mData[kFlag] = 0x00; +// llprintline("In the writeK\n"); + + i_mod_eight = 0; + for(i = 0; i < 18; i++) + { + if(in->k[i] != mDefaults.k[i]) + { + + mData[kFlag] |= 1<k[i], bMant, bExp); + + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + i_mod_eight++; + while(i_mod_eight >= 8) + { + kFlag++; + i_mod_eight -= 8; + } + } + + return startByte; +}*/ + +U32 LLPartSysCompressedPacket::writeKill_p(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + + twoBytesFromFloat(in->killPlaneNormal[0], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->killPlaneNormal[1], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->killPlaneNormal[2], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->killPlaneZ, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->distanceDeath, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + +U32 LLPartSysCompressedPacket::writeBounce_p(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + + twoBytesFromFloat(in->bouncePlaneNormal[0], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->bouncePlaneNormal[1], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->bouncePlaneNormal[2], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + + twoBytesFromFloat(in->bouncePlaneZ, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + +U32 LLPartSysCompressedPacket::writeBounce_b(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + twoBytesFromFloat(in->bounce_b, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + return startByte; +} + +//U32 LLPartSysCompressedPacket::writePos_ranges(LLPartInitData *in, U32 startByte) +//{ +// S8 tmp; +// int i; +// for(i = 0; i < 6; i++) +// { +// tmp = (S8) in->pos_ranges[i]; // float to int conversion (keep the sign) +// mData[startByte++] = (U8)tmp; // signed to unsigned typecast +// } +// return startByte; +//} + +//U32 LLPartSysCompressedPacket::writeVel_ranges(LLPartInitData *in, U32 startByte) +//{ +// S8 tmp; +// int i; +// for(i = 0; i < 6; i++) +// { +// tmp = (S8) in->vel_ranges[i]; // float to int conversion (keep the sign) +// mData[startByte++] = (U8)tmp; // signed to unsigned typecast +// } +// return startByte; +//} + +U32 LLPartSysCompressedPacket::writeAlphaScaleDiffEqn_range(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + for(i = 0; i < 3; i++) + { + twoBytesFromFloat(in->diffEqAlpha[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + for(i = 0; i < 3; i++) + { + twoBytesFromFloat(in->diffEqScale[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + return startByte; +} + +U32 LLPartSysCompressedPacket::writeScale_range(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + for(i = 0; i < 4; i++) + { + twoBytesFromFloat(in->scale_range[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + return startByte; +} + + +U32 LLPartSysCompressedPacket::writeAlpha_range(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + for(i = 0; i < 4; i++) + { + twoBytesFromFloat(in->alpha_range[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + return startByte; +} + +U32 LLPartSysCompressedPacket::writeVelocityOffset(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + for(i = 0; i < 3; i++) + { + twoBytesFromFloat(in->vel_offset[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + return startByte; +} + +U32 LLPartSysCompressedPacket::writeUUID(LLPartInitData *in, U32 startByte) +{ + U8 * bufPtr = mData + startByte; + if(in->mImageUuid == IMG_SHOT) { + mData[startByte++] = 0x01; + return startByte; + } + + if(in->mImageUuid == IMG_SPARK) { + mData[startByte++] = 0x02; + return startByte; + } + + + if(in->mImageUuid == IMG_BIG_EXPLOSION_1) { + mData[startByte++] = 0x03; + return startByte; + } + + if(in->mImageUuid == IMG_BIG_EXPLOSION_2) { + mData[startByte++] = 0x04; + return startByte; + } + + + if(in->mImageUuid == IMG_SMOKE_POOF) { + mData[startByte++] = 0x05; + return startByte; + } + + if(in->mImageUuid == IMG_FIRE) { + mData[startByte++] = 0x06; + return startByte; + } + + + if(in->mImageUuid == IMG_EXPLOSION) { + mData[startByte++] = 0x07; + return startByte; + } + + if(in->mImageUuid == IMG_EXPLOSION_2) { + mData[startByte++] = 0x08; + return startByte; + } + + + if(in->mImageUuid == IMG_EXPLOSION_3) { + mData[startByte++] = 0x09; + return startByte; + } + + if(in->mImageUuid == IMG_EXPLOSION_4) { + mData[startByte++] = 0x0A; + return startByte; + } + + mData[startByte++] = 0x00; // flag for "read whole UUID" + + memcpy(bufPtr, in->mImageUuid.mData, 16); /* Flawfinder: ignore */ + return (startByte+16); +} + +U32 LLPartSysCompressedPacket::writeSpawn(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + + twoBytesFromFloat(in->spawnRange, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->spawnFrequency, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->spawnFreqencyRange, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + + + for(i = 0; i < 3; i++) + { + twoBytesFromFloat(in->spawnDirection[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + + twoBytesFromFloat(in->spawnDirectionRange, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->spawnVelocity, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + twoBytesFromFloat(in->spawnVelocityRange, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + +U32 LLPartSysCompressedPacket::writeEnvironment(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + int i; + + twoBytesFromFloat(in->windWeight, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + for(i = 0; i < 3; i++) + { + twoBytesFromFloat(in->currentGravity[i], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + } + + twoBytesFromFloat(in->gravityWeight, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + return startByte; +} + +U32 LLPartSysCompressedPacket::writeLifespan(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + + twoBytesFromFloat(in->globalLifetime, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->individualLifetime, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->individualLifetimeRange, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + + +U32 LLPartSysCompressedPacket::writeDecayDamp(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + + twoBytesFromFloat(in->speedLimit, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->alphaDecay, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->scaleDecay, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->dampMotionFactor, bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + +U32 LLPartSysCompressedPacket::writeWindDiffusionFactor(LLPartInitData *in, U32 startByte) +{ + S8 bExp, bMant; + + twoBytesFromFloat(in->windDiffusionFactor[0], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->windDiffusionFactor[1], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + twoBytesFromFloat(in->windDiffusionFactor[2], bMant, bExp); + mData[startByte++] = bMant; + mData[startByte++] = bExp; + + return startByte; +} + + + + + + +/* +U32 LLPartSysCompressedPacket::readK(LLPartInitData *in, U32 startByte) +{ + U32 i, i_mod_eight, kFlag; + S8 bMant, bExp; // 1 bytes mantissa and exponent for a float + kFlag = startByte; + startByte += 3; // 3 bytes has enough room for 18 bits + + i_mod_eight = 0; + for(i = 0; i < 18; i++) + { + if(mData[kFlag]&(1<k[i] = floatFromTwoBytes(bMant, bExp); // much tighter platform-independent + // way to ship floats + + } + i_mod_eight++; + if(i_mod_eight >= 8) + { + i_mod_eight -= 8; + kFlag++; + } + } + + return startByte; +} +*/ + +U32 LLPartSysCompressedPacket::readKill_p(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->killPlaneNormal[0] = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->killPlaneNormal[1] = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->killPlaneNormal[2] = floatFromTwoBytes(bMant, bExp); + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->killPlaneZ = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->distanceDeath = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readBounce_p(LLPartInitData *in, U32 startByte) +{ + + S8 bMant, bExp; + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->bouncePlaneNormal[0] = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->bouncePlaneNormal[1] = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->bouncePlaneNormal[2] = floatFromTwoBytes(bMant, bExp); + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->bouncePlaneZ = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readBounce_b(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->bounce_b = floatFromTwoBytes(bMant, bExp); + return startByte; +} + + +//U32 LLPartSysCompressedPacket::readPos_ranges(LLPartInitData *in, U32 startByte) +//{ +// S8 tmp; +// int i; +// for(i = 0; i < 6; i++) +// { +// tmp = (S8)mData[startByte++]; +// in->pos_ranges[i] = tmp; +// } +// return startByte; +//} + +//U32 LLPartSysCompressedPacket::readVel_ranges(LLPartInitData *in, U32 startByte) +//{ +// S8 tmp; +// int i; +// for(i = 0; i < 6; i++) +// { +// tmp = (S8)mData[startByte++]; +// in->vel_ranges[i] = tmp; +// } +// return startByte; +//} + + + +U32 LLPartSysCompressedPacket::readAlphaScaleDiffEqn_range(LLPartInitData *in, U32 startByte) +{ + int i; + S8 bMant, bExp; + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->diffEqAlpha[i] = floatFromTwoBytes(bMant, bExp); + } + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->diffEqScale[i] = floatFromTwoBytes(bMant, bExp); + } + return startByte; +} + +U32 LLPartSysCompressedPacket::readAlpha_range(LLPartInitData *in, U32 startByte) +{ + int i; + S8 bMant, bExp; + for(i = 0; i < 4; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->alpha_range[i] = floatFromTwoBytes(bMant, bExp); + } + return startByte; +} + +U32 LLPartSysCompressedPacket::readScale_range(LLPartInitData *in, U32 startByte) +{ + int i; + S8 bMant, bExp; + for(i = 0; i < 4; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->scale_range[i] = floatFromTwoBytes(bMant, bExp); + } + return startByte; +} + +U32 LLPartSysCompressedPacket::readVelocityOffset(LLPartInitData *in, U32 startByte) +{ + int i; + S8 bMant, bExp; + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->vel_offset[i] = floatFromTwoBytes(bMant, bExp); + } + return startByte; +} + +U32 LLPartSysCompressedPacket::readUUID(LLPartInitData *in, U32 startByte) +{ + U8 * bufPtr = mData + startByte; + + if(mData[startByte] == 0x01) + { + in->mImageUuid = IMG_SHOT; + return startByte+1; + } + if(mData[startByte] == 0x02) + { + in->mImageUuid = IMG_SPARK; + return startByte+1; + } + if(mData[startByte] == 0x03) + { + in->mImageUuid = IMG_BIG_EXPLOSION_1; + return startByte+1; + } + if(mData[startByte] == 0x04) + { + in->mImageUuid = IMG_BIG_EXPLOSION_2; + return startByte+1; + } + if(mData[startByte] == 0x05) + { + in->mImageUuid = IMG_SMOKE_POOF; + return startByte+1; + } + if(mData[startByte] == 0x06) + { + in->mImageUuid = IMG_FIRE; + return startByte+1; + } + if(mData[startByte] == 0x07) + { + in->mImageUuid = IMG_EXPLOSION; + return startByte+1; + } + if(mData[startByte] == 0x08) + { + in->mImageUuid = IMG_EXPLOSION_2; + return startByte+1; + } + if(mData[startByte] == 0x09) + { + in->mImageUuid = IMG_EXPLOSION_3; + return startByte+1; + } + if(mData[startByte] == 0x0A) + { + in->mImageUuid = IMG_EXPLOSION_4; + return startByte+1; + } + + startByte++; // cause we actually have to read the UUID now. + memcpy(in->mImageUuid.mData, bufPtr, 16); /* Flawfinder: ignore */ + return (startByte+16); +} + + + + +U32 LLPartSysCompressedPacket::readSpawn(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + U32 i; + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnRange = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnFrequency = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnFreqencyRange = floatFromTwoBytes(bMant, bExp); + + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnDirection[i] = floatFromTwoBytes(bMant, bExp); + } + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnDirectionRange = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnVelocity = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->spawnVelocityRange = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readEnvironment(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + U32 i; + + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->windWeight = floatFromTwoBytes(bMant, bExp); + + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->currentGravity[i] = floatFromTwoBytes(bMant, bExp); + } + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->gravityWeight = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readLifespan(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->globalLifetime = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->individualLifetime = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->individualLifetimeRange = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readDecayDamp(LLPartInitData *in, U32 startByte) +{ + S8 bMant, bExp; + + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->speedLimit = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->alphaDecay = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->scaleDecay = floatFromTwoBytes(bMant, bExp); + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->dampMotionFactor = floatFromTwoBytes(bMant, bExp); + + return startByte; +} + +U32 LLPartSysCompressedPacket::readWindDiffusionFactor(LLPartInitData *in, U32 startByte) +{ + int i; + S8 bMant, bExp; + for(i = 0; i < 3; i++) + { + bMant = mData[startByte++]; + bExp = mData[startByte++]; + in->windDiffusionFactor[i] = floatFromTwoBytes(bMant, bExp); + } + return startByte; +} + +BOOL LLPartSysCompressedPacket::fromLLPartInitData(LLPartInitData *in, U32 &bytesUsed) +{ + + writeFlagByte(in); + U32 currByte = 4; + +// llprintline("calling \"fromLLPartInitData\"\n"); + + //if(mData[0] & PART_SYS_K_MASK) + //{ + // currByte = writeK(in, 3); // first 3 bytes are reserved for header data + //} + + + + if(mData[0] & PART_SYS_KILL_P_MASK) + { + currByte = writeKill_p(in, currByte); + } + + if(mData[0] & PART_SYS_BOUNCE_P_MASK) + { + currByte = writeBounce_p(in, currByte); + } + + if(mData[0] & PART_SYS_BOUNCE_B_MASK) + { + currByte = writeBounce_b(in, currByte); + } + + //if(mData[0] & PART_SYS_POS_RANGES_MASK) + //{ + // currByte = writePos_ranges(in, currByte); + //} + + //if(mData[0] & PART_SYS_VEL_RANGES_MASK) + //{ + // currByte = writeVel_ranges(in, currByte); + //} + + if(mData[0] & PART_SYS_ALPHA_SCALE_DIFF_MASK) + { + currByte = writeAlphaScaleDiffEqn_range(in, currByte); + } + + if(mData[0] & PART_SYS_SCALE_RANGE_MASK) + { + currByte = writeScale_range(in, currByte); + } + + if(mData[0] & PART_SYS_VEL_OFFSET_MASK) + { + currByte = writeVelocityOffset(in, currByte); + } + + if(mData[0] & PART_SYS_M_IMAGE_UUID_MASK) + { + currByte = writeUUID(in, currByte); + } + + + if(mData[3] & PART_SYS_BYTE_SPAWN_MASK) + { + currByte = writeSpawn(in, currByte); + } + + if(mData[3] & PART_SYS_BYTE_ENVIRONMENT_MASK) + { + currByte = writeEnvironment(in, currByte); + } + + if(mData[3] & PART_SYS_BYTE_LIFESPAN_MASK) + { + currByte = writeLifespan(in, currByte); + } + + if(mData[3] & PART_SYS_BYTE_DECAY_DAMP_MASK) + { + currByte = writeDecayDamp(in, currByte); + } + + if(mData[3] & PART_SYS_BYTE_WIND_DIFF_MASK) + { + currByte = writeWindDiffusionFactor(in, currByte); + } + + + if(mData[2] & PART_SYS_BYTE_3_ALPHA_MASK) + { + currByte = writeAlpha_range(in, currByte); + } + + mData[currByte++] = (U8)in->maxParticles; + mData[currByte++] = (U8)in->initialParticles; + + + U32 flagFlag = 1; // flag indicating which flag bytes are non-zero + // yeah, I know, the name sounds funny + for(U32 i = 0; i < 8; i++) + { + +// llprintline("Flag \"%x\" gets byte \"%x\"\n", flagFlag, in->mFlags[i]); + if(mData[1] & flagFlag) + { + mData[currByte++] = in->mFlags[i]; +// llprintline("and is valid...\n"); + } + flagFlag <<= 1; + } + + bytesUsed = mNumBytes = currByte; + + + +// llprintline("returning from \"fromLLPartInitData\" with %d bytes\n", bytesUsed); + + return TRUE; +} + +BOOL LLPartSysCompressedPacket::toLLPartInitData(LLPartInitData *out, U32 *bytesUsed) +{ + U32 currByte = 4; + + gSetInitDataDefaults(out); + + if(mData[0] & PART_SYS_KILL_P_MASK) + { + currByte = readKill_p(out, currByte); + } + + if(mData[0] & PART_SYS_BOUNCE_P_MASK) + { + currByte = readBounce_p(out, currByte); + } + + if(mData[0] & PART_SYS_BOUNCE_B_MASK) + { + currByte = readBounce_b(out, currByte); + } + + if(mData[0] & PART_SYS_ALPHA_SCALE_DIFF_MASK) + { + currByte = readAlphaScaleDiffEqn_range(out, currByte); + } + + if(mData[0] & PART_SYS_SCALE_RANGE_MASK) + { + currByte = readScale_range(out, currByte); + } + + if(mData[0] & PART_SYS_VEL_OFFSET_MASK) + { + currByte = readVelocityOffset(out, currByte); + } + + if(mData[0] & PART_SYS_M_IMAGE_UUID_MASK) + { + currByte = readUUID(out, currByte); + } + + + if(mData[3] & PART_SYS_BYTE_SPAWN_MASK) + { + currByte = readSpawn(out, currByte); + } + + if(mData[3] & PART_SYS_BYTE_ENVIRONMENT_MASK) + { + currByte = readEnvironment(out, currByte); + } + + if(mData[3] & PART_SYS_BYTE_LIFESPAN_MASK) + { + currByte = readLifespan(out, currByte); + } + + if(mData[3] & PART_SYS_BYTE_DECAY_DAMP_MASK) + { + currByte = readDecayDamp(out, currByte); + } + + if(mData[3] & PART_SYS_BYTE_WIND_DIFF_MASK) + { + currByte = readWindDiffusionFactor(out, currByte); + } + + if(mData[2] & PART_SYS_BYTE_3_ALPHA_MASK) + { + currByte = readAlpha_range(out, currByte); + } + + out->maxParticles = mData[currByte++]; + out->initialParticles = mData[currByte++]; + + U32 flagFlag = 1; // flag indicating which flag bytes are non-zero + // yeah, I know, the name sounds funny + for(U32 i = 0; i < 8; i++) + { + flagFlag = 1<mFlags[i] = mData[currByte++]; + } + } + + *bytesUsed = currByte; + return TRUE; +} + +BOOL LLPartSysCompressedPacket::fromUnsignedBytes(U8 *in, U32 bytesUsed) +{ + if ((in != NULL) && (bytesUsed <= sizeof(mData))) + { + memcpy(mData, in, bytesUsed); + mNumBytes = bytesUsed; + return TRUE; + } + else + { + llerrs << "NULL input data or number of bytes exceed mData size" << llendl; + return FALSE; + } +} + + +U32 LLPartSysCompressedPacket::bufferSize() +{ + return mNumBytes; +} + +BOOL LLPartSysCompressedPacket::toUnsignedBytes(U8 *out) +{ + memcpy(out, mData, mNumBytes); /* Flawfinder: ignore */ + return TRUE; +} + +U8 * LLPartSysCompressedPacket::getBytePtr() +{ + return mData; +} + + -- cgit v1.1