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/**
* @file llwaterparammanager.cpp
* @brief Implementation for the LLWaterParamManager class.
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* 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 "llviewerprecompiledheaders.h"
#include "llwaterparammanager.h"
#include "llrender.h"
#include "pipeline.h"
#include "llsky.h"
#include "llfloaterreg.h"
#include "llsliderctrl.h"
#include "llspinctrl.h"
#include "llcheckboxctrl.h"
#include "lluictrlfactory.h"
#include "llviewercontrol.h"
#include "llviewercamera.h"
#include "llcombobox.h"
#include "lllineeditor.h"
#include "llsdserialize.h"
#include "v4math.h"
#include "llviewercontrol.h"
#include "lldrawpoolwater.h"
#include "llagent.h"
#include "llagentcamera.h"
#include "llviewerregion.h"
#include "llwlparammanager.h"
#include "llwaterparamset.h"
#include "llfloaterwater.h"
#include "curl/curl.h"
LLWaterParamManager::LLWaterParamManager() :
mFogColor(22.f/255.f, 43.f/255.f, 54.f/255.f, 0.0f, 0.0f, "waterFogColor", "WaterFogColor"),
mFogDensity(4, "waterFogDensity", 2),
mUnderWaterFogMod(0.25, "underWaterFogMod"),
mNormalScale(2.f, 2.f, 2.f, "normScale"),
mFresnelScale(0.5f, "fresnelScale"),
mFresnelOffset(0.4f, "fresnelOffset"),
mScaleAbove(0.025f, "scaleAbove"),
mScaleBelow(0.2f, "scaleBelow"),
mBlurMultiplier(0.1f, "blurMultiplier"),
mWave1Dir(.5f, .5f, "wave1Dir"),
mWave2Dir(.5f, .5f, "wave2Dir"),
mDensitySliderValue(1.0f),
mWaterFogKS(1.0f)
{
}
LLWaterParamManager::~LLWaterParamManager()
{
}
void LLWaterParamManager::loadAllPresets(const std::string& file_name)
{
std::string path_name(gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "windlight/water", ""));
LL_DEBUGS2("AppInit", "Shaders") << "Loading Default water settings from " << path_name << LL_ENDL;
bool found = true;
while(found)
{
std::string name;
found = gDirUtilp->getNextFileInDir(path_name, "*.xml", name, false);
if(found)
{
name=name.erase(name.length()-4);
// bugfix for SL-46920: preventing filenames that break stuff.
char * curl_str = curl_unescape(name.c_str(), name.size());
std::string unescaped_name(curl_str);
curl_free(curl_str);
curl_str = NULL;
LL_DEBUGS2("AppInit", "Shaders") << "name: " << name << LL_ENDL;
loadPreset(unescaped_name,FALSE);
}
}
// And repeat for user presets, note the user presets will modify any system presets already loaded
std::string path_name2(gDirUtilp->getExpandedFilename( LL_PATH_USER_SETTINGS , "windlight/water", ""));
LL_DEBUGS2("AppInit", "Shaders") << "Loading User water settings from " << path_name2 << LL_ENDL;
found = true;
while(found)
{
std::string name;
found = gDirUtilp->getNextFileInDir(path_name2, "*.xml", name, false);
if(found)
{
name=name.erase(name.length()-4);
// bugfix for SL-46920: preventing filenames that break stuff.
char * curl_str = curl_unescape(name.c_str(), name.size());
std::string unescaped_name(curl_str);
curl_free(curl_str);
curl_str = NULL;
LL_DEBUGS2("AppInit", "Shaders") << "name: " << name << LL_ENDL;
loadPreset(unescaped_name,FALSE);
}
}
}
void LLWaterParamManager::loadPreset(const std::string & name,bool propagate)
{
// bugfix for SL-46920: preventing filenames that break stuff.
char * curl_str = curl_escape(name.c_str(), name.size());
std::string escaped_filename(curl_str);
curl_free(curl_str);
curl_str = NULL;
escaped_filename += ".xml";
std::string pathName(gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "windlight/water", escaped_filename));
LL_DEBUGS2("AppInit", "Shaders") << "Loading water settings from " << pathName << LL_ENDL;
llifstream presetsXML;
presetsXML.open(pathName.c_str());
// That failed, try loading from the users area instead.
if(!presetsXML)
{
pathName=gDirUtilp->getExpandedFilename( LL_PATH_USER_SETTINGS , "windlight/water", escaped_filename);
LL_DEBUGS2("AppInit", "Shaders") << "Loading User water setting from " << pathName << LL_ENDL;
presetsXML.clear();
presetsXML.open(pathName.c_str());
}
if (presetsXML)
{
LLSD paramsData(LLSD::emptyMap());
LLPointer<LLSDParser> parser = new LLSDXMLParser();
parser->parse(presetsXML, paramsData, LLSDSerialize::SIZE_UNLIMITED);
std::map<std::string, LLWaterParamSet>::iterator mIt = mParamList.find(name);
if(mIt == mParamList.end())
{
addParamSet(name, paramsData);
}
else
{
setParamSet(name, paramsData);
}
presetsXML.close();
}
else
{
llwarns << "Can't find " << name << llendl;
return;
}
if(propagate)
{
getParamSet(name, mCurParams);
propagateParameters();
}
}
void LLWaterParamManager::savePreset(const std::string & name)
{
// bugfix for SL-46920: preventing filenames that break stuff.
char * curl_str = curl_escape(name.c_str(), name.size());
std::string escaped_filename(curl_str);
curl_free(curl_str);
curl_str = NULL;
escaped_filename += ".xml";
// make an empty llsd
LLSD paramsData(LLSD::emptyMap());
std::string pathName(gDirUtilp->getExpandedFilename( LL_PATH_USER_SETTINGS , "windlight/water", escaped_filename));
// fill it with LLSD windlight params
paramsData = mParamList[name].getAll();
// write to file
llofstream presetsXML(pathName);
LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter();
formatter->format(paramsData, presetsXML, LLSDFormatter::OPTIONS_PRETTY);
presetsXML.close();
propagateParameters();
}
void LLWaterParamManager::propagateParameters(void)
{
// bind the variables only if we're using shaders
if(gPipeline.canUseVertexShaders())
{
LLViewerShaderMgr::shader_iter shaders_iter, end_shaders;
end_shaders = LLViewerShaderMgr::instance()->endShaders();
for(shaders_iter = LLViewerShaderMgr::instance()->beginShaders(); shaders_iter != end_shaders; ++shaders_iter)
{
if (shaders_iter->mProgramObject != 0
&& shaders_iter->mShaderGroup == LLGLSLShader::SG_WATER)
{
shaders_iter->mUniformsDirty = TRUE;
}
}
}
bool err;
F32 fog_density_slider =
log(mCurParams.getFloat(mFogDensity.mName, err)) /
log(mFogDensity.mBase);
setDensitySliderValue(fog_density_slider);
}
void LLWaterParamManager::updateShaderUniforms(LLGLSLShader * shader)
{
if (shader->mShaderGroup == LLGLSLShader::SG_WATER)
{
shader->uniform4fv(LLViewerShaderMgr::LIGHTNORM, 1, LLWLParamManager::getInstance()->getRotatedLightDir().mV);
shader->uniform3fv("camPosLocal", 1, LLViewerCamera::getInstance()->getOrigin().mV);
shader->uniform4fv("waterFogColor", 1, LLDrawPoolWater::sWaterFogColor.mV);
shader->uniform4fv("waterPlane", 1, mWaterPlane.mV);
shader->uniform1f("waterFogDensity", getFogDensity());
shader->uniform1f("waterFogKS", mWaterFogKS);
shader->uniform4f("distance_multiplier", 0, 0, 0, 0);
}
}
static LLFastTimer::DeclareTimer FTM_UPDATE_WATERPARAM("Update Water Params");
void LLWaterParamManager::update(LLViewerCamera * cam)
{
LLFastTimer ftm(FTM_UPDATE_WATERPARAM);
// update the shaders and the menu
propagateParameters();
// sync menus if they exist
LLFloaterWater* waterfloater = LLFloaterReg::findTypedInstance<LLFloaterWater>("env_water");
if(waterfloater)
{
waterfloater->syncMenu();
}
// only do this if we're dealing with shaders
if(gPipeline.canUseVertexShaders())
{
//transform water plane to eye space
glh::vec3f norm(0.f, 0.f, 1.f);
glh::vec3f p(0.f, 0.f, gAgent.getRegion()->getWaterHeight()+0.1f);
F32 modelView[16];
for (U32 i = 0; i < 16; i++)
{
modelView[i] = (F32) gGLModelView[i];
}
glh::matrix4f mat(modelView);
glh::matrix4f invtrans = mat.inverse().transpose();
glh::vec3f enorm;
glh::vec3f ep;
invtrans.mult_matrix_vec(norm, enorm);
enorm.normalize();
mat.mult_matrix_vec(p, ep);
mWaterPlane = LLVector4(enorm.v[0], enorm.v[1], enorm.v[2], -ep.dot(enorm));
LLVector3 sunMoonDir;
if (gSky.getSunDirection().mV[2] > LLSky::NIGHTTIME_ELEVATION_COS)
{
sunMoonDir = gSky.getSunDirection();
}
else
{
sunMoonDir = gSky.getMoonDirection();
}
sunMoonDir.normVec();
mWaterFogKS = 1.f/llmax(sunMoonDir.mV[2], WATER_FOG_LIGHT_CLAMP);
LLViewerShaderMgr::shader_iter shaders_iter, end_shaders;
end_shaders = LLViewerShaderMgr::instance()->endShaders();
for(shaders_iter = LLViewerShaderMgr::instance()->beginShaders(); shaders_iter != end_shaders; ++shaders_iter)
{
if (shaders_iter->mProgramObject != 0
&& shaders_iter->mShaderGroup == LLGLSLShader::SG_WATER)
{
shaders_iter->mUniformsDirty = TRUE;
}
}
}
}
bool LLWaterParamManager::addParamSet(const std::string& name, LLWaterParamSet& param)
{
// add a new one if not one there already
std::map<std::string, LLWaterParamSet>::iterator mIt = mParamList.find(name);
if(mIt == mParamList.end())
{
mParamList[name] = param;
return true;
}
return false;
}
BOOL LLWaterParamManager::addParamSet(const std::string& name, LLSD const & param)
{
// add a new one if not one there already
std::map<std::string, LLWaterParamSet>::const_iterator finder = mParamList.find(name);
if(finder == mParamList.end())
{
mParamList[name].setAll(param);
return TRUE;
}
else
{
return FALSE;
}
}
bool LLWaterParamManager::getParamSet(const std::string& name, LLWaterParamSet& param)
{
// find it and set it
std::map<std::string, LLWaterParamSet>::iterator mIt = mParamList.find(name);
if(mIt != mParamList.end())
{
param = mParamList[name];
param.mName = name;
return true;
}
return false;
}
bool LLWaterParamManager::setParamSet(const std::string& name, LLWaterParamSet& param)
{
mParamList[name] = param;
return true;
}
bool LLWaterParamManager::setParamSet(const std::string& name, const LLSD & param)
{
// quick, non robust (we won't be working with files, but assets) check
if(!param.isMap())
{
return false;
}
mParamList[name].setAll(param);
return true;
}
bool LLWaterParamManager::removeParamSet(const std::string& name, bool delete_from_disk)
{
// remove from param list
std::map<std::string, LLWaterParamSet>::iterator mIt = mParamList.find(name);
if(mIt != mParamList.end())
{
mParamList.erase(mIt);
}
if(delete_from_disk)
{
std::string path_name(gDirUtilp->getExpandedFilename( LL_PATH_USER_SETTINGS , "windlight/water", ""));
// use full curl escaped name
char * curl_str = curl_escape(name.c_str(), name.size());
std::string escaped_name(curl_str);
curl_free(curl_str);
curl_str = NULL;
gDirUtilp->deleteFilesInDir(path_name, escaped_name + ".xml");
}
return true;
}
F32 LLWaterParamManager::getFogDensity(void)
{
bool err;
F32 fogDensity = mCurParams.getFloat("waterFogDensity", err);
// modify if we're underwater
const F32 water_height = gAgent.getRegion() ? gAgent.getRegion()->getWaterHeight() : 0.f;
F32 camera_height = gAgentCamera.getCameraPositionAgent().mV[2];
if(camera_height <= water_height)
{
// raise it to the underwater fog density modifier
fogDensity = pow(fogDensity, mCurParams.getFloat("underWaterFogMod", err));
}
return fogDensity;
}
// virtual static
void LLWaterParamManager::initSingleton()
{
loadAllPresets(LLStringUtil::null);
getParamSet("Default", mCurParams);
}
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