445 lines
11 KiB
C++
445 lines
11 KiB
C++
/**
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* @file llwaterparammanager.h
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* @brief Implementation for the LLWaterParamManager class.
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*
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* $LicenseInfo:firstyear=2007&license=viewergpl$
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*
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* Copyright (c) 2007-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_WATER_PARAMMANAGER_H
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#define LL_WATER_PARAMMANAGER_H
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#include <list>
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#include <map>
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#include "llwaterparamset.h"
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#include "llviewercamera.h"
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#include "v4color.h"
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#include <boost/signals2.hpp>
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#include "llassettype.h" // Ugh.
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class LLVFS;
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const F32 WATER_FOG_LIGHT_CLAMP = 0.3f;
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// color control
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struct WaterColorControl {
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F32 mR, mG, mB, mA, mI; /// the values
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std::string mName; /// name to use to dereference params
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std::string mSliderName; /// name of the slider in menu
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bool mHasSliderName; /// only set slider name for true color types
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inline WaterColorControl(F32 red, F32 green, F32 blue, F32 alpha,
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F32 intensity, const std::string& n, const std::string& sliderName = LLStringUtil::null)
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: mR(red), mG(green), mB(blue), mA(alpha), mI(intensity), mName(n), mSliderName(sliderName)
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{
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// if there's a slider name, say we have one
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mHasSliderName = false;
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if (mSliderName != "") {
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mHasSliderName = true;
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}
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}
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inline WaterColorControl & operator = (LLColor4 const & val)
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{
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mR = val.mV[0];
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mG = val.mV[1];
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mB = val.mV[2];
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mA = val.mV[3];
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return *this;
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}
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inline operator LLColor4 (void) const
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{
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return LLColor4(mR, mG, mB, mA);
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}
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inline WaterColorControl & operator = (LLVector4 const & val)
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{
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mR = val.mV[0];
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mG = val.mV[1];
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mB = val.mV[2];
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mA = val.mV[3];
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return *this;
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}
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inline operator LLVector4 (void) const
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{
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return LLVector4(mR, mG, mB, mA);
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}
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inline operator LLVector3 (void) const
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{
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return LLVector3(mR, mG, mB);
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}
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inline void update(LLWaterParamSet & params) const
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{
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params.set(mName, mR, mG, mB, mA);
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}
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};
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struct WaterVector3Control
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{
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F32 mX;
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F32 mY;
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F32 mZ;
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std::string mName;
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// basic constructor
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inline WaterVector3Control(F32 valX, F32 valY, F32 valZ, const std::string& n)
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: mX(valX), mY(valY), mZ(valZ), mName(n)
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{
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}
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inline WaterVector3Control & operator = (LLVector3 const & val)
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{
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mX = val.mV[0];
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mY = val.mV[1];
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mZ = val.mV[2];
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return *this;
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}
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inline void update(LLWaterParamSet & params) const
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{
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params.set(mName, mX, mY, mZ);
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}
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};
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struct WaterVector2Control
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{
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F32 mX;
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F32 mY;
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std::string mName;
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// basic constructor
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inline WaterVector2Control(F32 valX, F32 valY, const std::string& n)
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: mX(valX), mY(valY), mName(n)
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{
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}
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inline WaterVector2Control & operator = (LLVector2 const & val)
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{
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mX = val.mV[0];
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mY = val.mV[1];
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return *this;
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}
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inline void update(LLWaterParamSet & params) const
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{
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params.set(mName, mX, mY);
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}
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};
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// float slider control
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struct WaterFloatControl
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{
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F32 mX;
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std::string mName;
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F32 mMult;
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inline WaterFloatControl(F32 val, const std::string& n, F32 m=1.0f)
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: mX(val), mName(n), mMult(m)
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{
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}
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inline WaterFloatControl & operator = (LLVector4 const & val)
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{
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mX = val.mV[0];
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return *this;
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}
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inline operator F32 (void) const
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{
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return mX;
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}
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inline void update(LLWaterParamSet & params) const
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{
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params.set(mName, mX);
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}
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};
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// float slider control
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struct WaterExpFloatControl
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{
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F32 mExp;
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std::string mName;
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F32 mBase;
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inline WaterExpFloatControl(F32 val, const std::string& n, F32 b)
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: mExp(val), mName(n), mBase(b)
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{
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}
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inline WaterExpFloatControl & operator = (F32 val)
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{
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mExp = log(val) / log(mBase);
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return *this;
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}
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inline operator F32 (void) const
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{
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return pow(mBase, mExp);
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}
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inline void update(LLWaterParamSet & params) const
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{
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params.set(mName, pow(mBase, mExp));
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}
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};
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/// WindLight parameter manager class - what controls all the wind light shaders
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class LLWaterParamManager : public LLSingleton<LLWaterParamManager>
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{
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LOG_CLASS(LLWaterParamManager);
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public:
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typedef std::list<std::string> preset_name_list_t;
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typedef std::map<std::string, LLWaterParamSet> preset_map_t;
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typedef boost::signals2::signal<void()> preset_list_signal_t;
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void updateShaderLinks();
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/// load a preset file
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void loadAllPresets(const std::string & fileName);
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/// load an individual preset into the sky from an LLSD stream
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/// Returns whether the stream was actually reasonable XML to load from.
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bool loadPresetXML(const std::string& name, std::istream& preset_stream);
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/// Load an individual preset from a notecard.
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void loadPresetNotecard(const std::string& name, const LLUUID& asset_id, const LLUUID& inv_id);
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/// save the parameter presets to file
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void savePreset(const std::string & name);
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/// save the parameter presets to file
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bool savePresetToNotecard(const std::string & name);
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/// send the parameters to the shaders
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void propagateParameters(void);
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// display specified water
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void applyParams(const LLSD& params, bool interpolate);
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/// update information for the shader
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void update(LLViewerCamera * cam);
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/// Update shader uniforms that have changed.
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void updateShaderUniforms(LLGLSLShader * shader);
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/// add a param to the list
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bool addParamSet(const std::string& name, LLWaterParamSet& param);
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/// add a param to the list
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BOOL addParamSet(const std::string& name, LLSD const & param);
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/// get a param from the list
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bool getParamSet(const std::string& name, LLWaterParamSet& param);
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/// check whether the preset is in the list
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bool hasParamSet(const std::string& name);
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/// set the param in the list with a new param
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bool setParamSet(const std::string& name, LLWaterParamSet& param);
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/// set the param in the list with a new param
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bool setParamSet(const std::string& name, LLSD const & param);
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/// gets rid of a parameter and any references to it
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/// returns true if successful
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bool removeParamSet(const std::string& name, bool delete_from_disk);
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/// @return true if the preset comes out of the box
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bool isSystemPreset(const std::string& preset_name) const;
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/// @return all named water presets.
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const preset_map_t& getPresets() const { return mParamList; }
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/// @return user and system preset names as a single list
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void getPresetNames(preset_name_list_t& presets) const;
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/// @return user and system preset names separately
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void getPresetNames(preset_name_list_t& user_presets, preset_name_list_t& system_presets) const;
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/// @return list of user presets names
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void getUserPresetNames(preset_name_list_t& user_presets) const;
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/// Emitted when a preset gets added or deleted.
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boost::signals2::connection setPresetListChangeCallback(const preset_list_signal_t::slot_type& cb);
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/// set the normap map we want for water
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bool setNormalMapID(const LLUUID& img);
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void setDensitySliderValue(F32 val);
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/// getters for all the different things water param manager maintains
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LLUUID getNormalMapID(void);
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LLVector2 getWave1Dir(void);
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LLVector2 getWave2Dir(void);
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F32 getScaleAbove(void);
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F32 getScaleBelow(void);
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LLVector3 getNormalScale(void);
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F32 getFresnelScale(void);
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F32 getFresnelOffset(void);
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F32 getBlurMultiplier(void);
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F32 getFogDensity(void);
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LLColor4 getFogColor(void);
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public:
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LLWaterParamSet mCurParams;
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/// Atmospherics
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WaterColorControl mFogColor;
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WaterExpFloatControl mFogDensity;
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WaterFloatControl mUnderWaterFogMod;
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/// wavelet scales and directions
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WaterVector3Control mNormalScale;
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WaterVector2Control mWave1Dir;
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WaterVector2Control mWave2Dir;
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// controls how water is reflected and refracted
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WaterFloatControl mFresnelScale;
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WaterFloatControl mFresnelOffset;
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WaterFloatControl mScaleAbove;
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WaterFloatControl mScaleBelow;
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WaterFloatControl mBlurMultiplier;
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F32 mDensitySliderValue;
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private:
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friend class LLSingleton<LLWaterParamManager>;
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/*virtual*/ void initSingleton();
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LLWaterParamManager();
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~LLWaterParamManager();
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void loadAllPresets();
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void loadPresetsFromDir(const std::string& dir);
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bool loadPreset(const std::string& path);
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static std::string getSysDir();
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static std::string getUserDir();
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LLVector4 mWaterPlane;
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F32 mWaterFogKS;
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std::vector<LLGLSLShader *> mShaderList;
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// list of all the parameters, listed by name
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preset_map_t mParamList;
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preset_list_signal_t mPresetListChangeSignal;
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static void loadWaterNotecard(LLVFS *vfs, const LLUUID& asset_id, LLAssetType::EType asset_type, void *user_data, S32 status, LLExtStat ext_status);
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};
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inline void LLWaterParamManager::setDensitySliderValue(F32 val)
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{
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val /= 10.0f;
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val = 1.0f - val;
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val *= val * val;
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// val *= val;
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mDensitySliderValue = val;
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}
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inline LLUUID LLWaterParamManager::getNormalMapID()
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{
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return mCurParams.mParamValues["normalMap"].asUUID();
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}
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inline bool LLWaterParamManager::setNormalMapID(const LLUUID& id)
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{
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mCurParams.mParamValues["normalMap"] = id;
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return true;
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}
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inline LLVector2 LLWaterParamManager::getWave1Dir(void)
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{
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bool err;
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return mCurParams.getVector2("wave1Dir", err);
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}
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inline LLVector2 LLWaterParamManager::getWave2Dir(void)
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{
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bool err;
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return mCurParams.getVector2("wave2Dir", err);
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}
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inline F32 LLWaterParamManager::getScaleAbove(void)
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{
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bool err;
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return mCurParams.getFloat("scaleAbove", err);
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}
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inline F32 LLWaterParamManager::getScaleBelow(void)
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{
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bool err;
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return mCurParams.getFloat("scaleBelow", err);
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}
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inline LLVector3 LLWaterParamManager::getNormalScale(void)
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{
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bool err;
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return mCurParams.getVector3("normScale", err);
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}
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inline F32 LLWaterParamManager::getFresnelScale(void)
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{
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bool err;
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return mCurParams.getFloat("fresnelScale", err);
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}
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inline F32 LLWaterParamManager::getFresnelOffset(void)
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{
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bool err;
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return mCurParams.getFloat("fresnelOffset", err);
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}
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inline F32 LLWaterParamManager::getBlurMultiplier(void)
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{
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bool err;
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return mCurParams.getFloat("blurMultiplier", err);
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}
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inline LLColor4 LLWaterParamManager::getFogColor(void)
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{
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bool err;
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return LLColor4(mCurParams.getVector4("waterFogColor", err));
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}
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#endif
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