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Diffstat (limited to 'indra/newview/llsettingsbase.cpp')
| -rw-r--r-- | indra/newview/llsettingsbase.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/indra/newview/llsettingsbase.cpp b/indra/newview/llsettingsbase.cpp new file mode 100644 index 0000000000..1aafacae45 --- /dev/null +++ b/indra/newview/llsettingsbase.cpp @@ -0,0 +1,246 @@ +/** +* @file llsettingsbase.cpp +* @author optional +* @brief A base class for asset based settings groups. +* +* $LicenseInfo:2011&license=viewerlgpl$ +* Second Life Viewer Source Code +* Copyright (C) 2017, 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 "llviewerprecompiledheaders.h" +#include "llsettingsbase.h" + +#include "llmath.h" +#include <algorithm> + +#include "llsdserialize.h" + +namespace +{ + const F32 BREAK_POINT = 0.5; +} + +//========================================================================= +LLSettingsBase::LLSettingsBase(): + mSettings(LLSD::emptyMap()), + mDirty(true) +{ +} + +LLSettingsBase::LLSettingsBase(const LLSD setting) : + mSettings(setting), + mDirty(true) +{ +} + +//========================================================================= +void LLSettingsBase::lerpSettings(const LLSettingsBase &other, F32 mix) +{ + mSettings = interpolateSDMap(mSettings, other.mSettings, mix); + setDirtyFlag(true); +} + +LLSD LLSettingsBase::combineSDMaps(const LLSD &settings, const LLSD &other) const +{ + LLSD newSettings; + + for (LLSD::map_const_iterator it = settings.beginMap(); it != settings.endMap(); ++it) + { + std::string key_name = (*it).first; + LLSD value = (*it).second; + + LLSD::Type setting_type = value.type(); + switch (setting_type) + { + case LLSD::TypeMap: + newSettings[key_name] = combineSDMaps(value, LLSD()); + break; + case LLSD::TypeArray: + newSettings[key_name] = LLSD::emptyArray(); + for (LLSD::array_const_iterator ita = value.beginArray(); ita != value.endArray(); ++ita) + { + newSettings[key_name].append(*ita); + } + break; + default: + newSettings[key_name] = value; + break; + } + } + + if (!other.isUndefined()) + { + for (LLSD::map_const_iterator it = other.beginMap(); it != other.endMap(); ++it) + { + std::string key_name = (*it).first; + LLSD value = (*it).second; + + LLSD::Type setting_type = value.type(); + switch (setting_type) + { + case LLSD::TypeMap: + newSettings[key_name] = combineSDMaps(value, LLSD()); + break; + case LLSD::TypeArray: + newSettings[key_name] = LLSD::emptyArray(); + for (LLSD::array_const_iterator ita = value.beginArray(); ita != value.endArray(); ++ita) + { + newSettings[key_name].append(*ita); + } + break; + default: + newSettings[key_name] = value; + break; + } + } + } + + return newSettings; +} + +LLSD LLSettingsBase::interpolateSDMap(const LLSD &settings, const LLSD &other, F32 mix) const +{ + LLSD newSettings; + + stringset_t skip = getSkipInterpolateKeys(); + stringset_t slerps = getSlerpKeys(); + + for (LLSD::map_const_iterator it = settings.beginMap(); it != settings.endMap(); ++it) + { + std::string key_name = (*it).first; + LLSD value = (*it).second; + + if (skip.find(key_name) != skip.end()) + continue; + + if (!other.has(key_name)) + { // The other does not contain this setting, keep the original value + // TODO: Should I blend this out instead? + newSettings[key_name] = value; + continue; + } + LLSD::Type setting_type = value.type(); + LLSD other_value = other[key_name]; + + if (other_value.type() != setting_type) + { + // The data type mismatched between this and other. Hard switch when we pass the break point + // but issue a warning. + LL_WARNS("SETTINGS") << "Setting lerp between mismatched types for '" << key_name << "'." << LL_ENDL; + newSettings[key_name] = (mix > BREAK_POINT) ? other_value : value; + continue; + } + + switch (setting_type) + { + case LLSD::TypeInteger: + // lerp between the two values rounding the result to the nearest integer. + newSettings[key_name] = LLSD::Integer(llroundf(lerp(value.asReal(), other_value.asReal(), mix))); + break; + case LLSD::TypeReal: + // lerp between the two values. + newSettings[key_name] = LLSD::Real(lerp(value.asReal(), other_value.asReal(), mix)); + break; + case LLSD::TypeMap: + // deep copy. + newSettings[key_name] = interpolateSDMap(value, other_value, mix); + break; + + case LLSD::TypeArray: + { + LLSD newvalue(LLSD::emptyArray()); + + if (slerps.find(key_name) != slerps.end()) + { + LLQuaternion q = slerp(mix, LLQuaternion(value), LLQuaternion(other_value)); + newvalue = q.getValue(); + } + else + { // TODO: We could expand this to inspect the type and do a deep lerp based on type. + // for now assume a heterogeneous array of reals. + size_t len = std::max(value.size(), other_value.size()); + + for (size_t i = 0; i < len; ++i) + { + + newvalue[i] = lerp(value[i].asReal(), other_value[i].asReal(), mix); + } + } + + newSettings[key_name] = newvalue; + } + + break; + +// case LLSD::TypeBoolean: +// case LLSD::TypeString: +// case LLSD::TypeUUID: +// case LLSD::TypeURI: +// case LLSD::TypeBinary: +// case LLSD::TypeDate: + default: + // atomic or unknown data types. Lerping between them does not make sense so switch at the break. + newSettings[key_name] = (mix > BREAK_POINT) ? other_value : value; + break; + } + } + + // Now add anything that is in other but not in the settings + for (LLSD::map_const_iterator it = other.beginMap(); it != other.endMap(); ++it) + { + // TODO: Should I blend this in instead? + if (skip.find((*it).first) == skip.end()) + continue; + + if (!settings.has((*it).first)) + continue; + + newSettings[(*it).first] = (*it).second; + } + + return newSettings; +} + + +void LLSettingsBase::exportSettings(std::string name) const +{ + LLSD exprt = LLSDMap("type", LLSD::String(getSettingType())) + ("name", LLSD::String(name)) + ("settings", mSettings); + + std::string path_name = gDirUtilp->getExpandedFilename(LL_PATH_DUMP, name + ".settings"); + + // write to file + llofstream presetsXML(path_name.c_str()); + if (presetsXML.is_open()) + { + LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter(); + formatter->format(exprt, presetsXML, LLSDFormatter::OPTIONS_PRETTY); + presetsXML.close(); + + LL_DEBUGS() << "saved preset '" << name << "'; " << mSettings.size() << " settings" << LL_ENDL; + + } + else + { + LL_WARNS("Presets") << "Cannot open for output preset file " << path_name << LL_ENDL; + } +} |