Second Life viewer sources 1.13.2.12

1 files changed, 326 insertions, 0 deletions

diff --git a/linden/indra/llmessage/llpartdata.cpp b/linden/indra/llmessage/llpartdata.cpp
new file mode 100644
index 0000000..11969d0
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+++ b/linden/indra/llmessage/llpartdata.cpp
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+/** 
+ * @file llpartdata.cpp
+ * @brief Particle system data packing
+ *
+ * Copyright (c) 2003-2007, 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 "llpartdata.h"
+#include "message.h"
+
+#include "lldatapacker.h"
+#include "v4coloru.h"
+
+#include "llsdutil.h"
+
+
+const S32 PS_PART_DATA_BLOCK_SIZE = 4 + 2 + 4 + 4 + 2 + 2; // 18
+const S32 PS_DATA_BLOCK_SIZE = 68 + PS_PART_DATA_BLOCK_SIZE; // 68 + 18 = 86
+
+
+const F32 MAX_PART_SCALE = 4.f;
+
+BOOL LLPartData::pack(LLDataPacker &dp)
+{
+        LLColor4U coloru;
+        dp.packU32(mFlags, "pdflags");
+        dp.packFixed(mMaxAge, "pdmaxage", FALSE, 8, 8);
+        coloru.setVec(mStartColor);
+        dp.packColor4U(coloru, "pdstartcolor");
+        coloru.setVec(mEndColor);
+        dp.packColor4U(coloru, "pdendcolor");
+        dp.packFixed(mStartScale.mV[0], "pdstartscalex", FALSE, 3, 5);
+        dp.packFixed(mStartScale.mV[1], "pdstartscaley", FALSE, 3, 5);
+        dp.packFixed(mEndScale.mV[0], "pdendscalex", FALSE, 3, 5);
+        dp.packFixed(mEndScale.mV[1], "pdendscaley", FALSE, 3, 5);
+        return TRUE;
+}
+
+LLSD LLPartData::asLLSD() const
+{
+        LLSD sd = LLSD();
+        sd["pdflags"] = ll_sd_from_U32(mFlags);
+        sd["pdmaxage"] = mMaxAge;
+        sd["pdstartcolor"] = ll_sd_from_color4(mStartColor);
+        sd["pdendcolor"] = ll_sd_from_color4(mEndColor);
+        sd["pdstartscale"] = ll_sd_from_vector2(mStartScale);
+        sd["pdendscale"] = ll_sd_from_vector2(mEndScale);
+        return sd;
+}
+
+bool LLPartData::fromLLSD(LLSD& sd)
+{
+        mFlags = ll_U32_from_sd(sd["pdflags"]);
+        mMaxAge = (F32)sd["pdmaxage"].asReal();
+        mStartColor = ll_color4_from_sd(sd["pdstartcolor"]);
+        mEndColor = ll_color4_from_sd(sd["pdendcolor"]);
+        mStartScale = ll_vector2_from_sd(sd["pdstartscale"]);
+        mEndScale = ll_vector2_from_sd(sd["pdendscale"]);
+        return true;
+}
+
+
+BOOL LLPartData::unpack(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);
+        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;
+}
+
+
+LLPartSysData::LLPartSysData()
+{
+        mCRC = 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;
+
+        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;
+}
+
+
+BOOL LLPartSysData::pack(LLDataPacker &dp)
+{
+        dp.packU32(mCRC, "pscrc");
+        dp.packU32(mFlags, "psflags");
+        dp.packU8(mPattern, "pspattern");
+        dp.packFixed(mMaxAge, "psmaxage", FALSE, 8, 8);
+        dp.packFixed(mStartAge, "psstartage", FALSE, 8, 8);
+        dp.packFixed(mInnerAngle, "psinnerangle", FALSE, 3, 5);
+        dp.packFixed(mOuterAngle, "psouterangle", FALSE, 3, 5);
+        dp.packFixed(mBurstRate, "psburstrate", FALSE, 8, 8);
+        dp.packFixed(mBurstRadius, "psburstradius", FALSE, 8, 8);
+        dp.packFixed(mBurstSpeedMin, "psburstspeedmin", FALSE, 8, 8);
+        dp.packFixed(mBurstSpeedMax, "psburstspeedmax", FALSE, 8, 8);
+        dp.packU8(mBurstPartCount, "psburstpartcount");
+
+        dp.packFixed(mAngularVelocity.mV[0], "psangvelx", TRUE, 8, 7);
+        dp.packFixed(mAngularVelocity.mV[1], "psangvely", TRUE, 8, 7);
+        dp.packFixed(mAngularVelocity.mV[2], "psangvelz", TRUE, 8, 7);
+
+        dp.packFixed(mPartAccel.mV[0], "psaccelx", TRUE, 8, 7);
+        dp.packFixed(mPartAccel.mV[1], "psaccely", TRUE, 8, 7);
+        dp.packFixed(mPartAccel.mV[2], "psaccelz", TRUE, 8, 7);
+
+        dp.packUUID(mPartImageID, "psuuid");
+        dp.packUUID(mTargetUUID, "pstargetuuid");
+        mPartData.pack(dp);
+        return TRUE;
+}
+
+
+BOOL LLPartSysData::unpack(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");
+        mPartData.unpack(dp);
+        return TRUE;
+}
+
+
+BOOL LLPartSysData::isNullPS(const S32 block_num)
+{
+        U8 ps_data_block[PS_DATA_BLOCK_SIZE];
+        U32 crc;
+
+        S32 size;
+        // Check size of block
+        size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
+        
+        if (!size)
+        {
+                return TRUE;
+        }
+        else if (size != PS_DATA_BLOCK_SIZE)
+        {
+                llwarns << "PSBlock is wrong size for particle system data - got " << size << ", expecting " << PS_DATA_BLOCK_SIZE << llendl;
+                return TRUE;
+        }
+        gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE, block_num, PS_DATA_BLOCK_SIZE);
+
+        LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
+        dp.unpackU32(crc, "crc");
+
+        if (crc == 0)
+        {
+                return TRUE;
+        }
+        return FALSE;
+}
+
+
+//static
+BOOL LLPartSysData::packNull()
+{
+        U8 ps_data_block[PS_DATA_BLOCK_SIZE];
+        gMessageSystem->addBinaryData("PSBlock", ps_data_block, 0);
+        return TRUE;
+}
+
+
+BOOL LLPartSysData::packBlock()
+{
+        U8 ps_data_block[PS_DATA_BLOCK_SIZE];
+
+        LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
+        pack(dp);
+
+        // Add to message
+        gMessageSystem->addBinaryData("PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE);
+
+        return TRUE;
+}                                         
+
+
+BOOL LLPartSysData::unpackBlock(const S32 block_num)
+{
+        U8 ps_data_block[PS_DATA_BLOCK_SIZE];
+
+        // Check size of block
+        S32 size = gMessageSystem->getSize("ObjectData", block_num, "PSBlock");
+
+        if (size != PS_DATA_BLOCK_SIZE)
+        {
+                llwarns << "PSBlock is wrong size for particle system data - got " << size << ", expecting " << PS_DATA_BLOCK_SIZE << llendl;
+                return FALSE;
+        }
+
+        // Get from message
+        gMessageSystem->getBinaryData("ObjectData", "PSBlock", ps_data_block, PS_DATA_BLOCK_SIZE, block_num, PS_DATA_BLOCK_SIZE);
+
+        LLDataPackerBinaryBuffer dp(ps_data_block, PS_DATA_BLOCK_SIZE);
+        unpack(dp);
+
+        return TRUE;
+}
+
+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);
+}