diff options
Diffstat (limited to 'indra/llmessage/llpartdata.cpp')
| -rw-r--r-- | indra/llmessage/llpartdata.cpp | 838 |
1 files changed, 419 insertions, 419 deletions
diff --git a/indra/llmessage/llpartdata.cpp b/indra/llmessage/llpartdata.cpp index afbc74b847..296f4b5464 100644 --- a/indra/llmessage/llpartdata.cpp +++ b/indra/llmessage/llpartdata.cpp @@ -1,419 +1,419 @@ -/**
- * @file llpartdata.cpp
- * @brief Particle system data packing
- *
- * $LicenseInfo:firstyear=2003&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "llpartdata.h"
-#include "message.h"
-
-#include "lldatapacker.h"
-#include "v4coloru.h"
-
-#include "llsdutil.h"
-#include "llsdutil_math.h"
-
-
-
-const S32 PS_PART_DATA_GLOW_SIZE = 2;
-const S32 PS_PART_DATA_BLEND_SIZE = 2;
-const S32 PS_LEGACY_PART_DATA_BLOCK_SIZE = 4 + 2 + 4 + 4 + 2 + 2; //18
-const S32 PS_SYS_DATA_BLOCK_SIZE = 68;
-const S32 PS_MAX_DATA_BLOCK_SIZE = PS_SYS_DATA_BLOCK_SIZE+
- PS_LEGACY_PART_DATA_BLOCK_SIZE +
- PS_PART_DATA_BLEND_SIZE +
- PS_PART_DATA_GLOW_SIZE+
- 8; //two S32 size fields
-
-const S32 PS_LEGACY_DATA_BLOCK_SIZE = PS_SYS_DATA_BLOCK_SIZE + PS_LEGACY_PART_DATA_BLOCK_SIZE;
-
-const F32 MAX_PART_SCALE = 4.f;
-
-bool LLPartData::hasGlow() const
-{
- return mStartGlow > 0.f || mEndGlow > 0.f;
-}
-
-bool LLPartData::hasBlendFunc() const
-{
- return mBlendFuncSource != LLPartData::LL_PART_BF_SOURCE_ALPHA || mBlendFuncDest != LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA;
-}
-
-S32 LLPartData::getSize() const
-{
- S32 size = PS_LEGACY_PART_DATA_BLOCK_SIZE;
- if (hasGlow()) size += PS_PART_DATA_GLOW_SIZE;
- if (hasBlendFunc()) size += PS_PART_DATA_BLEND_SIZE;
-
- return size;
-}
-
-
-bool LLPartData::unpackLegacy(LLDataPacker &dp)
-{
- LLColor4U coloru;
-
- dp.unpackU32(mFlags, "pdflags");
- dp.unpackFixed(mMaxAge, "pdmaxage", false, 8, 8);
-
- dp.unpackColor4U(coloru, "pdstartcolor");
- mStartColor.setVec(coloru);
- dp.unpackColor4U(coloru, "pdendcolor");
- mEndColor.setVec(coloru);
- dp.unpackFixed(mStartScale.mV[0], "pdstartscalex", false, 3, 5);
- dp.unpackFixed(mStartScale.mV[1], "pdstartscaley", false, 3, 5);
- dp.unpackFixed(mEndScale.mV[0], "pdendscalex", false, 3, 5);
- dp.unpackFixed(mEndScale.mV[1], "pdendscaley", false, 3, 5);
-
- mStartGlow = 0.f;
- mEndGlow = 0.f;
- mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA;
- mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA;
-
- return true;
-}
-
-bool LLPartData::unpack(LLDataPacker &dp)
-{
- S32 size = 0;
- dp.unpackS32(size, "partsize");
-
- unpackLegacy(dp);
- size -= PS_LEGACY_PART_DATA_BLOCK_SIZE;
-
- if (mFlags & LL_PART_DATA_GLOW)
- {
- if (size < PS_PART_DATA_GLOW_SIZE) return false;
-
- U8 tmp_glow = 0;
- dp.unpackU8(tmp_glow,"pdstartglow");
- mStartGlow = tmp_glow / 255.f;
- dp.unpackU8(tmp_glow,"pdendglow");
- mEndGlow = tmp_glow / 255.f;
-
- size -= PS_PART_DATA_GLOW_SIZE;
- }
- else
- {
- mStartGlow = 0.f;
- mEndGlow = 0.f;
- }
-
- if (mFlags & LL_PART_DATA_BLEND)
- {
- if (size < PS_PART_DATA_BLEND_SIZE) return false;
- dp.unpackU8(mBlendFuncSource,"pdblendsource");
- dp.unpackU8(mBlendFuncDest,"pdblenddest");
- size -= PS_PART_DATA_BLEND_SIZE;
- }
- else
- {
- mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA;
- mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA;
- }
-
- if (size > 0)
- { //leftover bytes, unrecognized parameters
- U8 feh = 0;
- while (size > 0)
- { //read remaining bytes in block
- dp.unpackU8(feh, "whippang");
- size--;
- }
-
- //this particle system won't display properly, better to not show anything
- return false;
- }
-
-
- return true;
-}
-
-void LLPartData::setFlags(const U32 flags)
-{
- mFlags = flags;
-}
-
-
-void LLPartData::setMaxAge(const F32 max_age)
-{
- mMaxAge = llclamp(max_age, 0.f, 30.f);
-}
-
-
-void LLPartData::setStartScale(const F32 xs, const F32 ys)
-{
- mStartScale.mV[VX] = llmin(xs, MAX_PART_SCALE);
- mStartScale.mV[VY] = llmin(ys, MAX_PART_SCALE);
-}
-
-
-void LLPartData::setEndScale(const F32 xs, const F32 ys)
-{
- mEndScale.mV[VX] = llmin(xs, MAX_PART_SCALE);
- mEndScale.mV[VY] = llmin(ys, MAX_PART_SCALE);
-}
-
-
-void LLPartData::setStartColor(const LLVector3 &rgb)
-{
- mStartColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]);
-}
-
-
-void LLPartData::setEndColor(const LLVector3 &rgb)
-{
- mEndColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]);
-}
-
-void LLPartData::setStartAlpha(const F32 alpha)
-{
- mStartColor.mV[3] = alpha;
-}
-void LLPartData::setEndAlpha(const F32 alpha)
-{
- mEndColor.mV[3] = alpha;
-}
-
-// static
-bool LLPartData::validBlendFunc(S32 func)
-{
- if (func >= 0
- && func < LL_PART_BF_COUNT
- && func != UNSUPPORTED_DEST_ALPHA
- && func != UNSUPPORTED_ONE_MINUS_DEST_ALPHA)
- {
- return true;
- }
- return false;
-}
-
-LLPartSysData::LLPartSysData()
-{
- mCRC = 0;
- mFlags = 0;
-
- mPartData.mFlags = 0;
- mPartData.mStartColor = LLColor4(1.f, 1.f, 1.f, 1.f);
- mPartData.mEndColor = LLColor4(1.f, 1.f, 1.f, 1.f);
- mPartData.mStartScale = LLVector2(1.f, 1.f);
- mPartData.mEndScale = LLVector2(1.f, 1.f);
- mPartData.mMaxAge = 10.0;
- mPartData.mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA;
- mPartData.mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA;
- mPartData.mStartGlow = 0.f;
- mPartData.mEndGlow = 0.f;
-
- mMaxAge = 0.0;
- mStartAge = 0.0;
- mPattern = LL_PART_SRC_PATTERN_DROP; // Pattern for particle velocity
- mInnerAngle = 0.0; // Inner angle of PATTERN_ANGLE_*
- mOuterAngle = 0.0; // Outer angle of PATTERN_ANGLE_*
- mBurstRate = 0.1f; // How often to do a burst of particles
- mBurstPartCount = 1; // How many particles in a burst
- mBurstSpeedMin = 1.f; // Minimum particle velocity
- mBurstSpeedMax = 1.f; // Maximum particle velocity
- mBurstRadius = 0.f;
-
- mNumParticles = 0;
-}
-
-bool LLPartSysData::unpackSystem(LLDataPacker &dp)
-{
- dp.unpackU32(mCRC, "pscrc");
- dp.unpackU32(mFlags, "psflags");
- dp.unpackU8(mPattern, "pspattern");
- dp.unpackFixed(mMaxAge, "psmaxage", false, 8, 8);
- dp.unpackFixed(mStartAge, "psstartage", false, 8, 8);
- dp.unpackFixed(mInnerAngle, "psinnerangle", false, 3, 5);
- dp.unpackFixed(mOuterAngle, "psouterangle", false, 3, 5);
- dp.unpackFixed(mBurstRate, "psburstrate", false, 8, 8);
- mBurstRate = llmax(0.01f, mBurstRate);
- dp.unpackFixed(mBurstRadius, "psburstradius", false, 8, 8);
- dp.unpackFixed(mBurstSpeedMin, "psburstspeedmin", false, 8, 8);
- dp.unpackFixed(mBurstSpeedMax, "psburstspeedmax", false, 8, 8);
- dp.unpackU8(mBurstPartCount, "psburstpartcount");
-
- dp.unpackFixed(mAngularVelocity.mV[0], "psangvelx", true, 8, 7);
- dp.unpackFixed(mAngularVelocity.mV[1], "psangvely", true, 8, 7);
- dp.unpackFixed(mAngularVelocity.mV[2], "psangvelz", true, 8, 7);
-
- dp.unpackFixed(mPartAccel.mV[0], "psaccelx", true, 8, 7);
- dp.unpackFixed(mPartAccel.mV[1], "psaccely", true, 8, 7);
- dp.unpackFixed(mPartAccel.mV[2], "psaccelz", true, 8, 7);
-
- dp.unpackUUID(mPartImageID, "psuuid");
- dp.unpackUUID(mTargetUUID, "pstargetuuid");
- return true;
-}
-
-bool LLPartSysData::unpackLegacy(LLDataPacker &dp)
-{
- unpackSystem(dp);
- mPartData.unpackLegacy(dp);
-
- return true;
-}
-
-bool LLPartSysData::unpack(LLDataPacker &dp)
-{
- // syssize is currently unused. Adding now when modifying the 'version to make extensible in the future
- S32 size = 0;
- dp.unpackS32(size, "syssize");
-
- if (size != PS_SYS_DATA_BLOCK_SIZE)
- { //unexpected size, this viewer doesn't know how to parse this particle system
-
- //skip to LLPartData block
- U8 feh = 0;
-
- for (U32 i = 0; i < size; ++i)
- {
- dp.unpackU8(feh, "whippang");
- }
-
- dp.unpackS32(size, "partsize");
- //skip LLPartData block
- for (U32 i = 0; i < size; ++i)
- {
- dp.unpackU8(feh, "whippang");
- }
- return false;
- }
-
- unpackSystem(dp);
-
- return mPartData.unpack(dp);
-}
-
-std::ostream& operator<<(std::ostream& s, const LLPartSysData &data)
-{
- s << "Flags: " << std::hex << data.mFlags;
- s << "Pattern: " << std::hex << (U32) data.mPattern << "\n";
- s << "Source Age: [" << data.mStartAge << ", " << data.mMaxAge << "]\n";
- s << "Particle Age: " << data.mPartData.mMaxAge << "\n";
- s << "Angle: [" << data.mInnerAngle << ", " << data.mOuterAngle << "]\n";
- s << "Burst Rate: " << data.mBurstRate << "\n";
- s << "Burst Radius: " << data.mBurstRadius << "\n";
- s << "Burst Speed: [" << data.mBurstSpeedMin << ", " << data.mBurstSpeedMax << "]\n";
- s << "Burst Part Count: " << std::hex << (U32) data.mBurstPartCount << "\n";
- s << "Angular Velocity: " << data.mAngularVelocity << "\n";
- s << "Accel: " << data.mPartAccel;
- return s;
-}
-
-bool LLPartSysData::isNullPS(const S32 block_num)
-{
- U8 ps_data_block[PS_MAX_DATA_BLOCK_SIZE];
- U32 crc;
-
- S32 size;
- // Check size of block
- size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
-
- if (!size)
- {
- return true;
- }
-
- if (size > PS_MAX_DATA_BLOCK_SIZE)
- {
- //size is too big, newer particle version unsupported
- return true;
- }
-
- gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, size, block_num, PS_MAX_DATA_BLOCK_SIZE);
-
- LLDataPackerBinaryBuffer dp(ps_data_block, size);
- if (size > PS_LEGACY_DATA_BLOCK_SIZE)
- {
- // non legacy systems pack a size before the CRC
- S32 tmp = 0;
- dp.unpackS32(tmp, "syssize");
-
- if (tmp > PS_SYS_DATA_BLOCK_SIZE)
- { //unknown system data block size, don't know how to parse it, treat as NULL
- return true;
- }
- }
-
- dp.unpackU32(crc, "crc");
-
- if (crc == 0)
- {
- return true;
- }
- return false;
-}
-
-bool LLPartSysData::unpackBlock(const S32 block_num)
-{
- U8 ps_data_block[PS_MAX_DATA_BLOCK_SIZE];
-
- // Check size of block
- S32 size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
-
- if (size > PS_MAX_DATA_BLOCK_SIZE)
- {
- // Larger packets are newer and unsupported
- return false;
- }
-
- // Get from message
- gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, size, block_num, PS_MAX_DATA_BLOCK_SIZE);
-
- LLDataPackerBinaryBuffer dp(ps_data_block, size);
-
- if (size == PS_LEGACY_DATA_BLOCK_SIZE)
- {
- return unpackLegacy(dp);
- }
- else
- {
- return unpack(dp);
- }
-}
-
-bool LLPartSysData::isLegacyCompatible() const
-{
- return !mPartData.hasGlow() && !mPartData.hasBlendFunc();
-}
-
-void LLPartSysData::clampSourceParticleRate()
-{
- F32 particle_rate = 0;
- particle_rate = mBurstPartCount/mBurstRate;
- if (particle_rate > 256.f)
- {
- mBurstPartCount = llfloor(((F32)mBurstPartCount)*(256.f/particle_rate));
- }
-}
-
-void LLPartSysData::setPartAccel(const LLVector3 &accel)
-{
- mPartAccel.mV[VX] = llclamp(accel.mV[VX], -100.f, 100.f);
- mPartAccel.mV[VY] = llclamp(accel.mV[VY], -100.f, 100.f);
- mPartAccel.mV[VZ] = llclamp(accel.mV[VZ], -100.f, 100.f);
-}
+/** + * @file llpartdata.cpp + * @brief Particle system data packing + * + * $LicenseInfo:firstyear=2003&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "llpartdata.h" +#include "message.h" + +#include "lldatapacker.h" +#include "v4coloru.h" + +#include "llsdutil.h" +#include "llsdutil_math.h" + + + +const S32 PS_PART_DATA_GLOW_SIZE = 2; +const S32 PS_PART_DATA_BLEND_SIZE = 2; +const S32 PS_LEGACY_PART_DATA_BLOCK_SIZE = 4 + 2 + 4 + 4 + 2 + 2; //18 +const S32 PS_SYS_DATA_BLOCK_SIZE = 68; +const S32 PS_MAX_DATA_BLOCK_SIZE = PS_SYS_DATA_BLOCK_SIZE+ + PS_LEGACY_PART_DATA_BLOCK_SIZE + + PS_PART_DATA_BLEND_SIZE + + PS_PART_DATA_GLOW_SIZE+ + 8; //two S32 size fields + +const S32 PS_LEGACY_DATA_BLOCK_SIZE = PS_SYS_DATA_BLOCK_SIZE + PS_LEGACY_PART_DATA_BLOCK_SIZE; + +const F32 MAX_PART_SCALE = 4.f; + +bool LLPartData::hasGlow() const +{ + return mStartGlow > 0.f || mEndGlow > 0.f; +} + +bool LLPartData::hasBlendFunc() const +{ + return mBlendFuncSource != LLPartData::LL_PART_BF_SOURCE_ALPHA || mBlendFuncDest != LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA; +} + +S32 LLPartData::getSize() const +{ + S32 size = PS_LEGACY_PART_DATA_BLOCK_SIZE; + if (hasGlow()) size += PS_PART_DATA_GLOW_SIZE; + if (hasBlendFunc()) size += PS_PART_DATA_BLEND_SIZE; + + return size; +} + + +bool LLPartData::unpackLegacy(LLDataPacker &dp) +{ + LLColor4U coloru; + + dp.unpackU32(mFlags, "pdflags"); + dp.unpackFixed(mMaxAge, "pdmaxage", false, 8, 8); + + dp.unpackColor4U(coloru, "pdstartcolor"); + mStartColor.setVec(coloru); + dp.unpackColor4U(coloru, "pdendcolor"); + mEndColor.setVec(coloru); + dp.unpackFixed(mStartScale.mV[0], "pdstartscalex", false, 3, 5); + dp.unpackFixed(mStartScale.mV[1], "pdstartscaley", false, 3, 5); + dp.unpackFixed(mEndScale.mV[0], "pdendscalex", false, 3, 5); + dp.unpackFixed(mEndScale.mV[1], "pdendscaley", false, 3, 5); + + mStartGlow = 0.f; + mEndGlow = 0.f; + mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA; + mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA; + + return true; +} + +bool LLPartData::unpack(LLDataPacker &dp) +{ + S32 size = 0; + dp.unpackS32(size, "partsize"); + + unpackLegacy(dp); + size -= PS_LEGACY_PART_DATA_BLOCK_SIZE; + + if (mFlags & LL_PART_DATA_GLOW) + { + if (size < PS_PART_DATA_GLOW_SIZE) return false; + + U8 tmp_glow = 0; + dp.unpackU8(tmp_glow,"pdstartglow"); + mStartGlow = tmp_glow / 255.f; + dp.unpackU8(tmp_glow,"pdendglow"); + mEndGlow = tmp_glow / 255.f; + + size -= PS_PART_DATA_GLOW_SIZE; + } + else + { + mStartGlow = 0.f; + mEndGlow = 0.f; + } + + if (mFlags & LL_PART_DATA_BLEND) + { + if (size < PS_PART_DATA_BLEND_SIZE) return false; + dp.unpackU8(mBlendFuncSource,"pdblendsource"); + dp.unpackU8(mBlendFuncDest,"pdblenddest"); + size -= PS_PART_DATA_BLEND_SIZE; + } + else + { + mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA; + mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA; + } + + if (size > 0) + { //leftover bytes, unrecognized parameters + U8 feh = 0; + while (size > 0) + { //read remaining bytes in block + dp.unpackU8(feh, "whippang"); + size--; + } + + //this particle system won't display properly, better to not show anything + return false; + } + + + return true; +} + +void LLPartData::setFlags(const U32 flags) +{ + mFlags = flags; +} + + +void LLPartData::setMaxAge(const F32 max_age) +{ + mMaxAge = llclamp(max_age, 0.f, 30.f); +} + + +void LLPartData::setStartScale(const F32 xs, const F32 ys) +{ + mStartScale.mV[VX] = llmin(xs, MAX_PART_SCALE); + mStartScale.mV[VY] = llmin(ys, MAX_PART_SCALE); +} + + +void LLPartData::setEndScale(const F32 xs, const F32 ys) +{ + mEndScale.mV[VX] = llmin(xs, MAX_PART_SCALE); + mEndScale.mV[VY] = llmin(ys, MAX_PART_SCALE); +} + + +void LLPartData::setStartColor(const LLVector3 &rgb) +{ + mStartColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]); +} + + +void LLPartData::setEndColor(const LLVector3 &rgb) +{ + mEndColor.setVec(rgb.mV[0], rgb.mV[1], rgb.mV[2]); +} + +void LLPartData::setStartAlpha(const F32 alpha) +{ + mStartColor.mV[3] = alpha; +} +void LLPartData::setEndAlpha(const F32 alpha) +{ + mEndColor.mV[3] = alpha; +} + +// static +bool LLPartData::validBlendFunc(S32 func) +{ + if (func >= 0 + && func < LL_PART_BF_COUNT + && func != UNSUPPORTED_DEST_ALPHA + && func != UNSUPPORTED_ONE_MINUS_DEST_ALPHA) + { + return true; + } + return false; +} + +LLPartSysData::LLPartSysData() +{ + mCRC = 0; + mFlags = 0; + + mPartData.mFlags = 0; + mPartData.mStartColor = LLColor4(1.f, 1.f, 1.f, 1.f); + mPartData.mEndColor = LLColor4(1.f, 1.f, 1.f, 1.f); + mPartData.mStartScale = LLVector2(1.f, 1.f); + mPartData.mEndScale = LLVector2(1.f, 1.f); + mPartData.mMaxAge = 10.0; + mPartData.mBlendFuncSource = LLPartData::LL_PART_BF_SOURCE_ALPHA; + mPartData.mBlendFuncDest = LLPartData::LL_PART_BF_ONE_MINUS_SOURCE_ALPHA; + mPartData.mStartGlow = 0.f; + mPartData.mEndGlow = 0.f; + + mMaxAge = 0.0; + mStartAge = 0.0; + mPattern = LL_PART_SRC_PATTERN_DROP; // Pattern for particle velocity + mInnerAngle = 0.0; // Inner angle of PATTERN_ANGLE_* + mOuterAngle = 0.0; // Outer angle of PATTERN_ANGLE_* + mBurstRate = 0.1f; // How often to do a burst of particles + mBurstPartCount = 1; // How many particles in a burst + mBurstSpeedMin = 1.f; // Minimum particle velocity + mBurstSpeedMax = 1.f; // Maximum particle velocity + mBurstRadius = 0.f; + + mNumParticles = 0; +} + +bool LLPartSysData::unpackSystem(LLDataPacker &dp) +{ + dp.unpackU32(mCRC, "pscrc"); + dp.unpackU32(mFlags, "psflags"); + dp.unpackU8(mPattern, "pspattern"); + dp.unpackFixed(mMaxAge, "psmaxage", false, 8, 8); + dp.unpackFixed(mStartAge, "psstartage", false, 8, 8); + dp.unpackFixed(mInnerAngle, "psinnerangle", false, 3, 5); + dp.unpackFixed(mOuterAngle, "psouterangle", false, 3, 5); + dp.unpackFixed(mBurstRate, "psburstrate", false, 8, 8); + mBurstRate = llmax(0.01f, mBurstRate); + dp.unpackFixed(mBurstRadius, "psburstradius", false, 8, 8); + dp.unpackFixed(mBurstSpeedMin, "psburstspeedmin", false, 8, 8); + dp.unpackFixed(mBurstSpeedMax, "psburstspeedmax", false, 8, 8); + dp.unpackU8(mBurstPartCount, "psburstpartcount"); + + dp.unpackFixed(mAngularVelocity.mV[0], "psangvelx", true, 8, 7); + dp.unpackFixed(mAngularVelocity.mV[1], "psangvely", true, 8, 7); + dp.unpackFixed(mAngularVelocity.mV[2], "psangvelz", true, 8, 7); + + dp.unpackFixed(mPartAccel.mV[0], "psaccelx", true, 8, 7); + dp.unpackFixed(mPartAccel.mV[1], "psaccely", true, 8, 7); + dp.unpackFixed(mPartAccel.mV[2], "psaccelz", true, 8, 7); + + dp.unpackUUID(mPartImageID, "psuuid"); + dp.unpackUUID(mTargetUUID, "pstargetuuid"); + return true; +} + +bool LLPartSysData::unpackLegacy(LLDataPacker &dp) +{ + unpackSystem(dp); + mPartData.unpackLegacy(dp); + + return true; +} + +bool LLPartSysData::unpack(LLDataPacker &dp) +{ + // syssize is currently unused. Adding now when modifying the 'version to make extensible in the future + S32 size = 0; + dp.unpackS32(size, "syssize"); + + if (size != PS_SYS_DATA_BLOCK_SIZE) + { //unexpected size, this viewer doesn't know how to parse this particle system + + //skip to LLPartData block + U8 feh = 0; + + for (U32 i = 0; i < size; ++i) + { + dp.unpackU8(feh, "whippang"); + } + + dp.unpackS32(size, "partsize"); + //skip LLPartData block + for (U32 i = 0; i < size; ++i) + { + dp.unpackU8(feh, "whippang"); + } + return false; + } + + unpackSystem(dp); + + return mPartData.unpack(dp); +} + +std::ostream& operator<<(std::ostream& s, const LLPartSysData &data) +{ + s << "Flags: " << std::hex << data.mFlags; + s << "Pattern: " << std::hex << (U32) data.mPattern << "\n"; + s << "Source Age: [" << data.mStartAge << ", " << data.mMaxAge << "]\n"; + s << "Particle Age: " << data.mPartData.mMaxAge << "\n"; + s << "Angle: [" << data.mInnerAngle << ", " << data.mOuterAngle << "]\n"; + s << "Burst Rate: " << data.mBurstRate << "\n"; + s << "Burst Radius: " << data.mBurstRadius << "\n"; + s << "Burst Speed: [" << data.mBurstSpeedMin << ", " << data.mBurstSpeedMax << "]\n"; + s << "Burst Part Count: " << std::hex << (U32) data.mBurstPartCount << "\n"; + s << "Angular Velocity: " << data.mAngularVelocity << "\n"; + s << "Accel: " << data.mPartAccel; + return s; +} + +bool LLPartSysData::isNullPS(const S32 block_num) +{ + U8 ps_data_block[PS_MAX_DATA_BLOCK_SIZE]; + U32 crc; + + S32 size; + // Check size of block + size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock"); + + if (!size) + { + return true; + } + + if (size > PS_MAX_DATA_BLOCK_SIZE) + { + //size is too big, newer particle version unsupported + return true; + } + + gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, size, block_num, PS_MAX_DATA_BLOCK_SIZE); + + LLDataPackerBinaryBuffer dp(ps_data_block, size); + if (size > PS_LEGACY_DATA_BLOCK_SIZE) + { + // non legacy systems pack a size before the CRC + S32 tmp = 0; + dp.unpackS32(tmp, "syssize"); + + if (tmp > PS_SYS_DATA_BLOCK_SIZE) + { //unknown system data block size, don't know how to parse it, treat as NULL + return true; + } + } + + dp.unpackU32(crc, "crc"); + + if (crc == 0) + { + return true; + } + return false; +} + +bool LLPartSysData::unpackBlock(const S32 block_num) +{ + U8 ps_data_block[PS_MAX_DATA_BLOCK_SIZE]; + + // Check size of block + S32 size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock"); + + if (size > PS_MAX_DATA_BLOCK_SIZE) + { + // Larger packets are newer and unsupported + return false; + } + + // Get from message + gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, size, block_num, PS_MAX_DATA_BLOCK_SIZE); + + LLDataPackerBinaryBuffer dp(ps_data_block, size); + + if (size == PS_LEGACY_DATA_BLOCK_SIZE) + { + return unpackLegacy(dp); + } + else + { + return unpack(dp); + } +} + +bool LLPartSysData::isLegacyCompatible() const +{ + return !mPartData.hasGlow() && !mPartData.hasBlendFunc(); +} + +void LLPartSysData::clampSourceParticleRate() +{ + F32 particle_rate = 0; + particle_rate = mBurstPartCount/mBurstRate; + if (particle_rate > 256.f) + { + mBurstPartCount = llfloor(((F32)mBurstPartCount)*(256.f/particle_rate)); + } +} + +void LLPartSysData::setPartAccel(const LLVector3 &accel) +{ + mPartAccel.mV[VX] = llclamp(accel.mV[VX], -100.f, 100.f); + mPartAccel.mV[VY] = llclamp(accel.mV[VY], -100.f, 100.f); + mPartAccel.mV[VZ] = llclamp(accel.mV[VZ], -100.f, 100.f); +} |