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Store raw data about fog of war instead of RGBA images (bug #5108)

Browse Source
pull/2453/head
Andrei Kortunov 6 years ago
parent ac5491b5c2
commit b360deaec3
7 changed files with 113 additions and 80 deletions
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1
CHANGELOG.md
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@ -132,6 +132,7 @@
Bug #5104: Black Dart's enchantment doesn't trigger at low Enchant levels
Bug #5105: NPCs start combat with werewolves from any distance
Bug #5106: Still can jump even when encumbered
Bug #5108: Savegame bloating due to inefficient fog textures format
Bug #5110: ModRegion with a redundant numerical argument breaks script execution
Bug #5112: Insufficient magicka for current spell not reflected on HUD icon
Bug #5113: Unknown alchemy question mark not centered

1
apps/openmw/mwgui/mapwindow.cpp
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@ -209,6 +209,7 @@ namespace MWGui
MyGUI::IntCoord(mx*mMapWidgetSize, my*mMapWidgetSize, mMapWidgetSize, mMapWidgetSize),
MyGUI::Align::Top | MyGUI::Align::Left);
fog->setDepth(Local_FogLayer);
fog->setColour(MyGUI::Colour(0, 0, 0));
map->setNeedMouseFocus(false);
fog->setNeedMouseFocus(false);

93
apps/openmw/mwrender/localmap.cpp
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@ -9,8 +9,6 @@
#include <osg/LightSource>
#include <osg/PolygonMode>
#include <osgDB/ReadFile>
#include <components/debug/debuglog.hpp>
#include <components/esm/fogstate.hpp>
#include <components/esm/loadcell.hpp>
@ -18,7 +16,6 @@
#include <components/settings/settings.hpp>
#include <components/sceneutil/visitor.hpp>
#include <components/sceneutil/shadow.hpp>
#include <components/files/memorystream.hpp>
#include "../mwbase/environment.hpp"
#include "../mwbase/world.hpp"
@ -541,11 +538,10 @@ bool LocalMap::isPositionExplored (float nX, float nY, int x, int y)
nX = std::max(0.f, std::min(1.f, nX));
nY = std::max(0.f, std::min(1.f, nY));
int texU = static_cast<int>((sFogOfWarResolution - 1) * nX);
int texV = static_cast<int>((sFogOfWarResolution - 1) * nY);
int texU = static_cast<int>((ESM::FogTexture::sFogOfWarResolution - 1) * nX);
int texV = static_cast<int>((ESM::FogTexture::sFogOfWarResolution - 1) * nY);
uint32_t clr = ((const uint32_t*)segment.mFogOfWarImage->data())[texV * sFogOfWarResolution + texU];
uint8_t alpha = (clr >> 24);
uint8_t alpha = ((const uint8_t*)segment.mFogOfWarImage->data())[texV * ESM::FogTexture::sFogOfWarResolution + texU];
return alpha < 200;
}
@ -580,9 +576,9 @@ void LocalMap::updatePlayer (const osg::Vec3f& position, const osg::Quat& orient
}
// explore radius (squared)
const float exploreRadius = 0.17f * (sFogOfWarResolution-1); // explore radius from 0 to sFogOfWarResolution-1
const float exploreRadius = 0.17f * (ESM::FogTexture::sFogOfWarResolution-1); // explore radius from 0 to sFogOfWarResolution-1
const float sqrExploreRadius = square(exploreRadius);
const float exploreRadiusUV = exploreRadius / sFogOfWarResolution; // explore radius from 0 to 1 (UV space)
const float exploreRadiusUV = exploreRadius / ESM::FogTexture::sFogOfWarResolution; // explore radius from 0 to 1 (UV space)
// change the affected fog of war textures (in a 3x3 grid around the player)
for (int mx = -mCellDistance; mx<=mCellDistance; ++mx)
@ -611,23 +607,21 @@ void LocalMap::updatePlayer (const osg::Vec3f& position, const osg::Quat& orient
if (!segment.mFogOfWarImage || !segment.mMapTexture)
continue;
uint32_t* data = (uint32_t*)segment.mFogOfWarImage->data();
uint8_t* data = (uint8_t*)segment.mFogOfWarImage->data();
bool changed = false;
for (int texV = 0; texV<sFogOfWarResolution; ++texV)
for (int texV = 0; texV<ESM::FogTexture::sFogOfWarResolution; ++texV)
{
for (int texU = 0; texU<sFogOfWarResolution; ++texU)
for (int texU = 0; texU<ESM::FogTexture::sFogOfWarResolution; ++texU)
{
float sqrDist = square((texU + mx*(sFogOfWarResolution-1)) - u*(sFogOfWarResolution-1))
+ square((texV + my*(sFogOfWarResolution-1)) - v*(sFogOfWarResolution-1));
float sqrDist = square((texU + mx*(ESM::FogTexture::sFogOfWarResolution-1)) - u*(ESM::FogTexture::sFogOfWarResolution-1))
+ square((texV + my*(ESM::FogTexture::sFogOfWarResolution-1)) - v*(ESM::FogTexture::sFogOfWarResolution-1));
uint32_t clr = *(uint32_t*)data;
uint8_t alpha = (clr >> 24);
uint8_t alpha = *data;
alpha = std::min( alpha, (uint8_t) (std::max(0.f, std::min(1.f, (sqrDist/sqrExploreRadius)))*255) );
uint32_t val = (uint32_t) (alpha << 24);
if ( *data != val)
if ( *data != alpha)
{
*data = val;
*data = alpha;
changed = true;
}
@ -670,15 +664,7 @@ void LocalMap::MapSegment::createFogOfWarTexture()
void LocalMap::MapSegment::initFogOfWar()
{
mFogOfWarImage = new osg::Image;
// Assign a PixelBufferObject for asynchronous transfer of data to the GPU
mFogOfWarImage->setPixelBufferObject(new osg::PixelBufferObject);
mFogOfWarImage->allocateImage(sFogOfWarResolution, sFogOfWarResolution, 1, GL_RGBA, GL_UNSIGNED_BYTE);
assert(mFogOfWarImage->isDataContiguous());
std::vector<uint32_t> data;
data.resize(sFogOfWarResolution*sFogOfWarResolution, 0xff000000);
memcpy(mFogOfWarImage->data(), &data[0], data.size()*4);
mFogOfWarImage = ESM::FogState::initFogOfWar();
createFogOfWarTexture();
mFogOfWarTexture->setImage(mFogOfWarImage);
@ -686,34 +672,9 @@ void LocalMap::MapSegment::initFogOfWar()
void LocalMap::MapSegment::loadFogOfWar(const ESM::FogTexture &esm)
{
const std::vector<char>& data = esm.mImageData;
if (data.empty())
{
initFogOfWar();
return;
}
// TODO: deprecate tga and use raw data instead
osgDB::ReaderWriter* readerwriter = osgDB::Registry::instance()->getReaderWriterForExtension("tga");
if (!readerwriter)
{
Log(Debug::Error) << "Error: Unable to load fog, can't find a tga ReaderWriter" ;
return;
}
Files::IMemStream in(&data[0], data.size());
osgDB::ReaderWriter::ReadResult result = readerwriter->readImage(in);
if (!result.success())
{
Log(Debug::Error) << "Error: Failed to read fog: " << result.message() << " code " << result.status();
mFogOfWarImage = ESM::FogState::loadFogOfWar(esm);
if (!mFogOfWarImage)
return;
}
mFogOfWarImage = result.getImage();
mFogOfWarImage->flipVertical();
mFogOfWarImage->dirty();
createFogOfWarTexture();
mFogOfWarTexture->setImage(mFogOfWarImage);
@ -725,27 +686,7 @@ void LocalMap::MapSegment::saveFogOfWar(ESM::FogTexture &fog) const
if (!mFogOfWarImage)
return;
std::ostringstream ostream;
osgDB::ReaderWriter* readerwriter = osgDB::Registry::instance()->getReaderWriterForExtension("tga");
if (!readerwriter)
{
Log(Debug::Error) << "Error: Unable to write fog, can't find a tga ReaderWriter";
return;
}
// extra flips are unfortunate, but required for compatibility with older versions
mFogOfWarImage->flipVertical();
osgDB::ReaderWriter::WriteResult result = readerwriter->writeImage(*mFogOfWarImage, ostream);
if (!result.success())
{
Log(Debug::Error) << "Error: Unable to write fog: " << result.message() << " code " << result.status();
return;
}
mFogOfWarImage->flipVertical();
std::string data = ostream.str();
fog.mImageData = std::vector<char>(data.begin(), data.end());
ESM::FogState::saveFogOfWar(mFogOfWarImage, fog);
}
}

3
apps/openmw/mwrender/localmap.hpp
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@ -136,9 +136,6 @@ namespace MWRender
int mMapResolution;
// the dynamic texture is a bottleneck, so don't set this too high
static const int sFogOfWarResolution = 32;
// size of a map segment (for exteriors, 1 cell)
float mMapWorldSize;

81
components/esm/fogstate.cpp
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@ -1,7 +1,13 @@
#include "fogstate.hpp"
#include <osgDB/ReadFile>
#include <components/debug/debuglog.hpp>
#include <components/files/memorystream.hpp>
#include "esmreader.hpp"
#include "esmwriter.hpp"
#include "savedgame.hpp"
void ESM::FogState::load (ESMReader &esm)
{
@ -18,6 +24,10 @@ void ESM::FogState::load (ESMReader &esm)
size_t imageSize = esm.getSubSize()-sizeof(int)*2;
tex.mImageData.resize(imageSize);
esm.getExact(&tex.mImageData[0], imageSize);
if (esm.getFormat() < 6)
convertFogOfWar(tex.mImageData);
mFogTextures.push_back(tex);
}
}
@ -38,3 +48,74 @@ void ESM::FogState::save (ESMWriter &esm, bool interiorCell) const
esm.endRecord("FTEX");
}
}
osg::Image* ESM::FogState::initFogOfWar()
{
osg::Image* fogOfWarImage = new osg::Image;
// Assign a PixelBufferObject for asynchronous transfer of data to the GPU
fogOfWarImage->setPixelBufferObject(new osg::PixelBufferObject);
fogOfWarImage->allocateImage(FogTexture::sFogOfWarResolution, FogTexture::sFogOfWarResolution, 1, GL_ALPHA, GL_UNSIGNED_BYTE);
assert(fogOfWarImage->isDataContiguous());
std::fill(fogOfWarImage->data(), fogOfWarImage->data() + FogTexture::sFogOfWarResolution*FogTexture::sFogOfWarResolution, 0xff);
return fogOfWarImage;
}
void ESM::FogState::saveFogOfWar(osg::Image* fogImage, ESM::FogTexture &fog)
{
if (!fogImage)
return;
assert (fogImage->isDataContiguous());
fog.mImageData.assign(fogImage->data(), fogImage->data() + FogTexture::sFogOfWarResolution*FogTexture::sFogOfWarResolution);
}
osg::Image* ESM::FogState::loadFogOfWar(const ESM::FogTexture &esm)
{
osg::Image* fogImage = initFogOfWar();
const std::vector<char>& data = esm.mImageData;
if (data.empty())
{
return fogImage;
}
std::copy(data.begin(), data.end(), fogImage->data());
fogImage->dirty();
return fogImage;
}
void ESM::FogState::convertFogOfWar(std::vector<char>& imageData)
{
if (imageData.empty())
{
return;
}
osgDB::ReaderWriter* readerwriter = osgDB::Registry::instance()->getReaderWriterForExtension("tga");
if (!readerwriter)
{
Log(Debug::Error) << "Error: Unable to load fog, can't find a TGA ReaderWriter";
return;
}
Files::IMemStream in(&imageData[0], imageData.size());
osgDB::ReaderWriter::ReadResult result = readerwriter->readImage(in);
if (!result.success())
{
Log(Debug::Error) << "Error: Failed to read fog: " << result.message() << " code " << result.status();
return;
}
std::ostringstream ostream;
osg::Image* resultImage = result.getImage();
resultImage->flipVertical();
unsigned char* oldFogData = resultImage->data();
for (int i=0;i<FogTexture::sFogOfWarResolution*FogTexture::sFogOfWarResolution;++i)
ostream << oldFogData[4*i+3];
std::string str = ostream.str();
imageData = std::vector<char>(str.begin(), str.end());
}

12
components/esm/fogstate.hpp
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@ -3,6 +3,11 @@
#include <vector>
namespace osg
{
class Image;
}
namespace ESM
{
class ESMReader;
@ -12,6 +17,8 @@ namespace ESM
{
int mX, mY; // Only used for interior cells
std::vector<char> mImageData;
// the dynamic texture is a bottleneck, so don't set this too high
static const int sFogOfWarResolution = 32;
};
// format 0, saved games only
@ -32,6 +39,11 @@ namespace ESM
void load (ESMReader &esm);
void save (ESMWriter &esm, bool interiorCell) const;
static void saveFogOfWar(osg::Image* fogImage, ESM::FogTexture &fog);
static osg::Image* loadFogOfWar(const ESM::FogTexture &esm);
static void convertFogOfWar(std::vector<char>& imageData);
static osg::Image* initFogOfWar();
};
}

2
components/esm/savedgame.cpp
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@ -5,7 +5,7 @@
#include "defs.hpp"
unsigned int ESM::SavedGame::sRecordId = ESM::REC_SAVE;
int ESM::SavedGame::sCurrentFormat = 5;
int ESM::SavedGame::sCurrentFormat = 6;
void ESM::SavedGame::load (ESMReader &esm)
{

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