llvolumemessage.cpp
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- /**
- * @file llvolumemessage.cpp
- * @brief LLVolumeMessage base class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "message.h"
- #include "llvolumemessage.h"
- #include "lldatapacker.h"
- //============================================================================
- // LLVolumeMessage is just a wrapper class; all members are static
- //============================================================================
- bool LLVolumeMessage::packProfileParams(
- const LLProfileParams* params,
- LLMessageSystem *mesgsys)
- {
- // Default to cylinder
- static LLProfileParams defaultparams(LL_PCODE_PROFILE_CIRCLE, U16(0), U16(0), U16(0));
-
- if (!params)
- params = &defaultparams;
-
- U8 tempU8;
- U16 tempU16;
-
- tempU8 = params->getCurveType();
- mesgsys->addU8Fast(_PREHASH_ProfileCurve, tempU8);
- tempU16 = (U16) llround( params->getBegin() / CUT_QUANTA);
- mesgsys->addU16Fast(_PREHASH_ProfileBegin, tempU16);
- tempU16 = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA);
- mesgsys->addU16Fast(_PREHASH_ProfileEnd, tempU16);
- tempU16 = (U16) llround(params->getHollow() / HOLLOW_QUANTA);
- mesgsys->addU16Fast(_PREHASH_ProfileHollow, tempU16);
- return true;
- }
- bool LLVolumeMessage::packProfileParams(
- const LLProfileParams* params,
- LLDataPacker &dp)
- {
- // Default to cylinder
- static LLProfileParams defaultparams(LL_PCODE_PROFILE_CIRCLE, U16(0), U16(0), U16(0));
-
- if (!params)
- params = &defaultparams;
-
- U8 tempU8;
- U16 tempU16;
-
- tempU8 = params->getCurveType();
- dp.packU8(tempU8, "Curve");
- tempU16 = (U16) llround( params->getBegin() / CUT_QUANTA);
- dp.packU16(tempU16, "Begin");
- tempU16 = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA);
- dp.packU16(tempU16, "End");
- tempU16 = (U16) llround(params->getHollow() / HOLLOW_QUANTA);
- dp.packU16(tempU16, "Hollow");
- return true;
- }
- bool LLVolumeMessage::unpackProfileParams(
- LLProfileParams* params,
- LLMessageSystem* mesgsys,
- char* block_name,
- S32 block_num)
- {
- bool ok = true;
- U8 temp_u8;
- U16 temp_u16;
- F32 temp_f32;
- mesgsys->getU8Fast(block_name, _PREHASH_ProfileCurve, temp_u8, block_num);
- params->setCurveType(temp_u8);
- mesgsys->getU16Fast(block_name, _PREHASH_ProfileBegin, temp_u16, block_num);
- temp_f32 = temp_u16 * CUT_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile begin out of range: " << temp_f32
- << ". Clamping to 0.0." << llendl;
- temp_f32 = 0.f;
- ok = false;
- }
- params->setBegin(temp_f32);
- mesgsys->getU16Fast(block_name, _PREHASH_ProfileEnd, temp_u16, block_num);
- temp_f32 = temp_u16 * CUT_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile end out of range: " << 1.f - temp_f32
- << ". Clamping to 1.0." << llendl;
- temp_f32 = 1.f;
- ok = false;
- }
- params->setEnd(1.f - temp_f32);
- mesgsys->getU16Fast(block_name, _PREHASH_ProfileHollow, temp_u16, block_num);
- temp_f32 = temp_u16 * HOLLOW_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile hollow out of range: " << temp_f32
- << ". Clamping to 0.0." << llendl;
- temp_f32 = 0.f;
- ok = false;
- }
- params->setHollow(temp_f32);
- /*
- llinfos << "Unpacking Profile Block " << block_num << llendl;
- llinfos << "Curve: " << (U32)getCurve() << llendl;
- llinfos << "Begin: " << getBegin() << llendl;
- llinfos << "End: " << getEnd() << llendl;
- llinfos << "Hollow: " << getHollow() << llendl;
- */
- return ok;
- }
- bool LLVolumeMessage::unpackProfileParams(
- LLProfileParams* params,
- LLDataPacker &dp)
- {
- bool ok = true;
- U8 temp_u8;
- U16 temp_u16;
- F32 temp_f32;
- dp.unpackU8(temp_u8, "Curve");
- params->setCurveType(temp_u8);
- dp.unpackU16(temp_u16, "Begin");
- temp_f32 = temp_u16 * CUT_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile begin out of range: " << temp_f32 << llendl;
- llwarns << "Clamping to 0.0" << llendl;
- temp_f32 = 0.f;
- ok = false;
- }
- params->setBegin(temp_f32);
- dp.unpackU16(temp_u16, "End");
- temp_f32 = temp_u16 * CUT_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile end out of range: " << 1.f - temp_f32 << llendl;
- llwarns << "Clamping to 1.0" << llendl;
- temp_f32 = 1.f;
- ok = false;
- }
- params->setEnd(1.f - temp_f32);
- dp.unpackU16(temp_u16, "Hollow");
- temp_f32 = temp_u16 * HOLLOW_QUANTA;
- if (temp_f32 > 1.f)
- {
- llwarns << "Profile hollow out of range: " << temp_f32 << llendl;
- llwarns << "Clamping to 0.0" << llendl;
- temp_f32 = 0.f;
- ok = false;
- }
- params->setHollow(temp_f32);
- return ok;
- }
- //============================================================================
- // Quantization:
- // For cut begin, range is 0 to 1, quanta is 0.005, 0 maps to 0
- // For cut end, range is 0 to 1, quanta is 0.005, 1 maps to 0
- // For scale, range is 0 to 1, quanta is 0.01, 0 maps to 0, 1 maps to 100
- // For shear, range is -0.5 to 0.5, quanta is 0.01, 0 maps to 0
- // For taper, range is -1 to 1, quanta is 0.01, 0 maps to 0
- bool LLVolumeMessage::packPathParams(
- const LLPathParams* params,
- LLMessageSystem *mesgsys)
- {
- // Default to cylinder with no cut, top same size as bottom, no shear, no twist
- static LLPathParams defaultparams(LL_PCODE_PATH_LINE, U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), 0);
- if (!params)
- params = &defaultparams;
-
- U8 curve = params->getCurveType();
- mesgsys->addU8Fast(_PREHASH_PathCurve, curve);
- U16 begin = (U16) llround(params->getBegin() / CUT_QUANTA);
- mesgsys->addU16Fast(_PREHASH_PathBegin, begin);
- U16 end = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA);
- mesgsys->addU16Fast(_PREHASH_PathEnd, end);
- // Avoid truncation problem with direct F32->U8 cast.
- // (e.g., (U8) (0.50 / 0.01) = (U8) 49.9999999 = 49 not 50.
- U8 pack_scale_x = 200 - (U8) llround(params->getScaleX() / SCALE_QUANTA);
- mesgsys->addU8Fast(_PREHASH_PathScaleX, pack_scale_x );
- U8 pack_scale_y = 200 - (U8) llround(params->getScaleY() / SCALE_QUANTA);
- mesgsys->addU8Fast(_PREHASH_PathScaleY, pack_scale_y );
- U8 pack_shear_x = (U8) llround(params->getShearX() / SHEAR_QUANTA);
- mesgsys->addU8Fast(_PREHASH_PathShearX, pack_shear_x );
- U8 pack_shear_y = (U8) llround(params->getShearY() / SHEAR_QUANTA);
- mesgsys->addU8Fast(_PREHASH_PathShearY, pack_shear_y );
- S8 twist = (S8) llround(params->getTwist() / SCALE_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathTwist, twist);
- S8 twist_begin = (S8) llround(params->getTwistBegin() / SCALE_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathTwistBegin, twist_begin);
- S8 radius_offset = (S8) llround(params->getRadiusOffset() / SCALE_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathRadiusOffset, radius_offset);
- S8 taper_x = (S8) llround(params->getTaperX() / TAPER_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathTaperX, taper_x);
- S8 taper_y = (S8) llround(params->getTaperY() / TAPER_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathTaperY, taper_y);
- U8 revolutions = (U8) llround( (params->getRevolutions() - 1.0f) / REV_QUANTA);
- mesgsys->addU8Fast(_PREHASH_PathRevolutions, revolutions);
- S8 skew = (S8) llround(params->getSkew() / SCALE_QUANTA);
- mesgsys->addS8Fast(_PREHASH_PathSkew, skew);
- return true;
- }
- bool LLVolumeMessage::packPathParams(
- const LLPathParams* params,
- LLDataPacker &dp)
- {
- // Default to cylinder with no cut, top same size as bottom, no shear, no twist
- static LLPathParams defaultparams(LL_PCODE_PATH_LINE, U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), 0);
- if (!params)
- params = &defaultparams;
-
- U8 curve = params->getCurveType();
- dp.packU8(curve, "Curve");
- U16 begin = (U16) llround(params->getBegin() / CUT_QUANTA);
- dp.packU16(begin, "Begin");
- U16 end = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA);
- dp.packU16(end, "End");
- // Avoid truncation problem with direct F32->U8 cast.
- // (e.g., (U8) (0.50 / 0.01) = (U8) 49.9999999 = 49 not 50.
- U8 pack_scale_x = 200 - (U8) llround(params->getScaleX() / SCALE_QUANTA);
- dp.packU8(pack_scale_x, "ScaleX");
- U8 pack_scale_y = 200 - (U8) llround(params->getScaleY() / SCALE_QUANTA);
- dp.packU8(pack_scale_y, "ScaleY");
- S8 pack_shear_x = (S8) llround(params->getShearX() / SHEAR_QUANTA);
- dp.packU8(*(U8 *)&pack_shear_x, "ShearX");
- S8 pack_shear_y = (S8) llround(params->getShearY() / SHEAR_QUANTA);
- dp.packU8(*(U8 *)&pack_shear_y, "ShearY");
- S8 twist = (S8) llround(params->getTwist() / SCALE_QUANTA);
- dp.packU8(*(U8 *)&twist, "Twist");
-
- S8 twist_begin = (S8) llround(params->getTwistBegin() / SCALE_QUANTA);
- dp.packU8(*(U8 *)&twist_begin, "TwistBegin");
- S8 radius_offset = (S8) llround(params->getRadiusOffset() / SCALE_QUANTA);
- dp.packU8(*(U8 *)&radius_offset, "RadiusOffset");
- S8 taper_x = (S8) llround(params->getTaperX() / TAPER_QUANTA);
- dp.packU8(*(U8 *)&taper_x, "TaperX");
- S8 taper_y = (S8) llround(params->getTaperY() / TAPER_QUANTA);
- dp.packU8(*(U8 *)&taper_y, "TaperY");
- U8 revolutions = (U8) llround( (params->getRevolutions() - 1.0f) / REV_QUANTA);
- dp.packU8(*(U8 *)&revolutions, "Revolutions");
- S8 skew = (S8) llround(params->getSkew() / SCALE_QUANTA);
- dp.packU8(*(U8 *)&skew, "Skew");
- return true;
- }
- bool LLVolumeMessage::unpackPathParams(
- LLPathParams* params,
- LLMessageSystem* mesgsys,
- char* block_name,
- S32 block_num)
- {
- U8 curve;
- mesgsys->getU8Fast(block_name, _PREHASH_PathCurve, curve, block_num);
- params->setCurveType(curve);
- U16 begin;
- mesgsys->getU16Fast(block_name, _PREHASH_PathBegin, begin, block_num);
- params->setBegin((F32)(begin * CUT_QUANTA));
- U16 end;
- mesgsys->getU16Fast(block_name, _PREHASH_PathEnd, end, block_num);
- params->setEnd((F32)((50000 - end) * CUT_QUANTA));
- U8 pack_scale_x, pack_scale_y;
- mesgsys->getU8Fast(block_name, _PREHASH_PathScaleX, pack_scale_x, block_num);
- mesgsys->getU8Fast(block_name, _PREHASH_PathScaleY, pack_scale_y, block_num);
- F32 x = (F32) (200 - pack_scale_x) * SCALE_QUANTA;
- F32 y = (F32) (200 - pack_scale_y) * SCALE_QUANTA;
- params->setScale( x, y );
- S8 shear_x_quant, shear_y_quant;
- mesgsys->getS8Fast(block_name, _PREHASH_PathShearX, shear_x_quant, block_num);
- mesgsys->getS8Fast(block_name, _PREHASH_PathShearY, shear_y_quant, block_num);
- F32 shear_x = (F32) shear_x_quant * SHEAR_QUANTA;
- F32 shear_y = (F32) shear_y_quant * SHEAR_QUANTA;
- params->setShear( shear_x, shear_y );
- S8 twist;
- mesgsys->getS8Fast(block_name, _PREHASH_PathTwist, twist, block_num );
- params->setTwist((F32)(twist * SCALE_QUANTA));
- S8 twist_begin;
- mesgsys->getS8Fast(block_name, _PREHASH_PathTwistBegin, twist_begin, block_num );
- params->setTwistBegin((F32)(twist_begin * SCALE_QUANTA));
-
- S8 radius_offset;
- mesgsys->getS8Fast(block_name, _PREHASH_PathRadiusOffset, radius_offset, block_num );
- params->setRadiusOffset((F32)(radius_offset * SCALE_QUANTA));
- S8 taper_x_quant, taper_y_quant;
- mesgsys->getS8Fast(block_name, _PREHASH_PathTaperX, taper_x_quant, block_num );
- mesgsys->getS8Fast(block_name, _PREHASH_PathTaperY, taper_y_quant, block_num );
- F32 taper_x = (F32)(taper_x_quant * TAPER_QUANTA);
- F32 taper_y = (F32)(taper_y_quant * TAPER_QUANTA);
- params->setTaper( taper_x, taper_y );
- U8 revolutions;
- mesgsys->getU8Fast(block_name, _PREHASH_PathRevolutions, revolutions, block_num );
- params->setRevolutions((F32)(revolutions * REV_QUANTA + 1.0f));
- S8 skew;
- mesgsys->getS8Fast(block_name, _PREHASH_PathSkew, skew, block_num );
- params->setSkew((F32)(skew * SCALE_QUANTA));
- /*
- llinfos << "Unpacking Path Block " << block_num << llendl;
- llinfos << "Curve: " << (U32)params->getCurve() << llendl;
- llinfos << "Begin: " << params->getBegin() << llendl;
- llinfos << "End: " << params->getEnd() << llendl;
- llinfos << "Scale: " << params->getScale() << llendl;
- llinfos << "Twist: " << params->getTwist() << llendl;
- */
- return true;
- }
- bool LLVolumeMessage::unpackPathParams(LLPathParams* params, LLDataPacker &dp)
- {
- U8 value;
- S8 svalue;
- U16 temp_u16;
-
- dp.unpackU8(value, "Curve");
- params->setCurveType( value );
- dp.unpackU16(temp_u16, "Begin");
- params->setBegin((F32)(temp_u16 * CUT_QUANTA));
- dp.unpackU16(temp_u16, "End");
- params->setEnd((F32)((50000 - temp_u16) * CUT_QUANTA));
- dp.unpackU8(value, "ScaleX");
- F32 x = (F32) (200 - value) * SCALE_QUANTA;
- dp.unpackU8(value, "ScaleY");
- F32 y = (F32) (200 - value) * SCALE_QUANTA;
- params->setScale( x, y );
- dp.unpackU8(value, "ShearX");
- svalue = *(S8 *)&value;
- F32 shear_x = (F32) svalue * SHEAR_QUANTA;
- dp.unpackU8(value, "ShearY");
- svalue = *(S8 *)&value;
- F32 shear_y = (F32) svalue * SHEAR_QUANTA;
- params->setShear( shear_x, shear_y );
- dp.unpackU8(value, "Twist");
- svalue = *(S8 *)&value;
- params->setTwist((F32)(svalue * SCALE_QUANTA));
- dp.unpackU8(value, "TwistBegin");
- svalue = *(S8 *)&value;
- params->setTwistBegin((F32)(svalue * SCALE_QUANTA));
- dp.unpackU8(value, "RadiusOffset");
- svalue = *(S8 *)&value;
- params->setRadiusOffset((F32)(svalue * SCALE_QUANTA));
- dp.unpackU8(value, "TaperX");
- svalue = *(S8 *)&value;
- params->setTaperX((F32)(svalue * TAPER_QUANTA));
- dp.unpackU8(value, "TaperY");
- svalue = *(S8 *)&value;
- params->setTaperY((F32)(svalue * TAPER_QUANTA));
- dp.unpackU8(value, "Revolutions");
- params->setRevolutions((F32)(value * REV_QUANTA + 1.0f));
- dp.unpackU8(value, "Skew");
- svalue = *(S8 *)&value;
- params->setSkew((F32)(svalue * SCALE_QUANTA));
- return true;
- }
- //============================================================================
- // static
- bool LLVolumeMessage::constrainVolumeParams(LLVolumeParams& params)
- {
- U32 bad = 0;
- // This is called immediately after an unpack. feed the raw data
- // through the checked setters to constraint it to a valid set of
- // volume params.
- bad |= params.setType(params.getProfileParams().getCurveType(),
- params.getPathParams().getCurveType()) ? 0 : 1;
- bad |= params.setBeginAndEndS(params.getProfileParams().getBegin(),
- params.getProfileParams().getEnd()) ? 0 : 2;
- bad |= params.setBeginAndEndT(params.getPathParams().getBegin(),
- params.getPathParams().getEnd()) ? 0 : 4;
- bad |= params.setHollow(params.getProfileParams().getHollow()) ? 0 : 8;
- bad |= params.setTwistBegin(params.getPathParams().getTwistBegin()) ? 0 : 0x10;
- bad |= params.setTwistEnd(params.getPathParams().getTwistEnd()) ? 0 : 0x20;
- bad |= params.setRatio(params.getPathParams().getScaleX(),
- params.getPathParams().getScaleY()) ? 0 : 0x40;
- bad |= params.setShear(params.getPathParams().getShearX(),
- params.getPathParams().getShearY()) ? 0 : 0x80;
- bad |= params.setTaper(params.getPathParams().getTaperX(),
- params.getPathParams().getTaperY()) ? 0 : 0x100;
- bad |= params.setRevolutions(params.getPathParams().getRevolutions()) ? 0 : 0x200;
- bad |= params.setRadiusOffset(params.getPathParams().getRadiusOffset()) ? 0 : 0x400;
- bad |= params.setSkew(params.getPathParams().getSkew()) ? 0 : 0x800;
- if(bad)
- {
- llwarns << "LLVolumeMessage::constrainVolumeParams() - "
- << "forced to constrain incoming volume params: "
- << llformat("0x%04x",bad) << llendl;
- }
- return bad ? false : true;
- }
- bool LLVolumeMessage::packVolumeParams(const LLVolumeParams* params, LLMessageSystem *mesgsys)
- {
- // llinfos << "pack volume" << llendl;
- if (params)
- {
- packPathParams(¶ms->getPathParams(), mesgsys);
- packProfileParams(¶ms->getProfileParams(), mesgsys);
- }
- else
- {
- packPathParams(0, mesgsys);
- packProfileParams(0, mesgsys);
- }
- return true;
- }
- bool LLVolumeMessage::packVolumeParams(const LLVolumeParams* params, LLDataPacker &dp)
- {
- // llinfos << "pack volume" << llendl;
- if (params)
- {
- packPathParams(¶ms->getPathParams(), dp);
- packProfileParams(¶ms->getProfileParams(), dp);
- }
- else
- {
- packPathParams(0, dp);
- packProfileParams(0, dp);
- }
- return true;
- }
- bool LLVolumeMessage::unpackVolumeParams(
- LLVolumeParams* params,
- LLMessageSystem* mesgsys,
- char* block_name,
- S32 block_num)
- {
- bool ok = true;
- ok &= unpackPathParams(
- ¶ms->getPathParams(),
- mesgsys,
- block_name,
- block_num);
- ok &= unpackProfileParams(
- ¶ms->getProfileParams(),
- mesgsys,
- block_name,
- block_num);
- ok &= constrainVolumeParams(*params);
-
- return ok;
- }
- bool LLVolumeMessage::unpackVolumeParams(
- LLVolumeParams* params,
- LLDataPacker &dp)
- {
- bool ok = true;
- ok &= unpackPathParams(¶ms->getPathParams(), dp);
- ok &= unpackProfileParams(¶ms->getProfileParams(), dp);
- ok &= constrainVolumeParams(*params);
- return ok;
- }
- //============================================================================