int TerrainManager::getLtexIndexAt(int cellX, int cellY,
int x, int y)
{
//check texture index falls within the 9 cell bounds
//as this function can't cope with anything above that
assert(x >= -ESM::Land::LAND_TEXTURE_SIZE &&
y >= -ESM::Land::LAND_TEXTURE_SIZE &&
"Trying to get land textures that are out of bounds");
assert(x < 2*ESM::Land::LAND_TEXTURE_SIZE &&
y < 2*ESM::Land::LAND_TEXTURE_SIZE &&
"Trying to get land textures that are out of bounds");
if ( x < 0 )
{
cellX--;
x += ESM::Land::LAND_TEXTURE_SIZE;
}
else if ( x >= ESM::Land::LAND_TEXTURE_SIZE )
{
cellX++;
x -= ESM::Land::LAND_TEXTURE_SIZE;
}
if ( y < 0 )
{
cellY--;
y += ESM::Land::LAND_TEXTURE_SIZE;
}
else if ( y >= ESM::Land::LAND_TEXTURE_SIZE )
{
cellY++;
y -= ESM::Land::LAND_TEXTURE_SIZE;
}
ESM::Land* land =
MWBase::Environment::get().getWorld()->getStore().get<ESM::Land>().search(cellX, cellY);
if ( land != NULL )
{
if (!land->isDataLoaded(ESM::Land::DATA_VTEX))
{
land->loadData(ESM::Land::DATA_VTEX);
}
return land->mLandData
->mTextures[y * ESM::Land::LAND_TEXTURE_SIZE + x];
}
else
{
return 0;
}
}
const ESM::Land* TerrainStorage::getLand(int cellX, int cellY)
{
const MWWorld::ESMStore &esmStore =
MWBase::Environment::get().getWorld()->getStore();
ESM::Land* land = esmStore.get<ESM::Land>().search(cellX, cellY);
if (!land)
return NULL;
const int flags = ESM::Land::DATA_VCLR|ESM::Land::DATA_VHGT|ESM::Land::DATA_VNML|ESM::Land::DATA_VTEX;
if (!land->isDataLoaded(flags))
land->loadData(flags);
// TODO: unload land data when it's no longer needed
return land;
}
void GlobalMap::render (Loading::Listener* loadingListener)
{
Ogre::TexturePtr tex;
const MWWorld::ESMStore &esmStore =
MWBase::Environment::get().getWorld()->getStore();
// get the size of the world
MWWorld::Store<ESM::Cell>::iterator it = esmStore.get<ESM::Cell>().extBegin();
for (; it != esmStore.get<ESM::Cell>().extEnd(); ++it)
{
if (it->getGridX() < mMinX)
mMinX = it->getGridX();
if (it->getGridX() > mMaxX)
mMaxX = it->getGridX();
if (it->getGridY() < mMinY)
mMinY = it->getGridY();
if (it->getGridY() > mMaxY)
mMaxY = it->getGridY();
}
mWidth = mCellSize*(mMaxX-mMinX+1);
mHeight = mCellSize*(mMaxY-mMinY+1);
loadingListener->loadingOn();
loadingListener->setLabel("Creating map");
loadingListener->setProgressRange((mMaxX-mMinX+1) * (mMaxY-mMinY+1));
loadingListener->setProgress(0);
std::vector<Ogre::uchar> data (mWidth * mHeight * 3);
for (int x = mMinX; x <= mMaxX; ++x)
{
for (int y = mMinY; y <= mMaxY; ++y)
{
ESM::Land* land = esmStore.get<ESM::Land>().search (x,y);
if (land)
{
int mask = ESM::Land::DATA_WNAM;
if (!land->isDataLoaded(mask))
land->loadData(mask);
}
for (int cellY=0; cellY<mCellSize; ++cellY)
{
for (int cellX=0; cellX<mCellSize; ++cellX)
{
int vertexX = static_cast<int>(float(cellX)/float(mCellSize) * 9);
int vertexY = static_cast<int>(float(cellY) / float(mCellSize) * 9);
int texelX = (x-mMinX) * mCellSize + cellX;
int texelY = (mHeight-1) - ((y-mMinY) * mCellSize + cellY);
unsigned char r,g,b;
float y = 0;
if (land && land->mDataTypes & ESM::Land::DATA_WNAM)
y = (land->mLandData->mWnam[vertexY * 9 + vertexX] << 4) / 2048.f;
else
y = (SCHAR_MIN << 4) / 2048.f;
if (y < 0)
{
r = static_cast<unsigned char>(14 * y + 38);
g = static_cast<unsigned char>(20 * y + 56);
b = static_cast<unsigned char>(18 * y + 51);
}
else if (y < 0.3f)
{
if (y < 0.1f)
y *= 8.f;
else
{
y -= 0.1f;
y += 0.8f;
}
r = static_cast<unsigned char>(66 - 32 * y);
g = static_cast<unsigned char>(48 - 23 * y);
b = static_cast<unsigned char>(33 - 16 * y);
}
else
{
y -= 0.3f;
y *= 1.428f;
r = static_cast<unsigned char>(34 - 29 * y);
g = static_cast<unsigned char>(25 - 20 * y);
b = static_cast<unsigned char>(17 - 12 * y);
}
data[texelY * mWidth * 3 + texelX * 3] = r;
data[texelY * mWidth * 3 + texelX * 3+1] = g;
data[texelY * mWidth * 3 + texelX * 3+2] = b;
}
}
loadingListener->increaseProgress();
if (land)
land->unloadData();
}
}
Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream(&data[0], data.size()));
tex = Ogre::TextureManager::getSingleton ().createManual ("GlobalMap.png", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
Ogre::TEX_TYPE_2D, mWidth, mHeight, 0, Ogre::PF_B8G8R8, Ogre::TU_STATIC);
tex->loadRawData(stream, mWidth, mHeight, Ogre::PF_B8G8R8);
tex->load();
mOverlayTexture = Ogre::TextureManager::getSingleton().createManual("GlobalMapOverlay", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
Ogre::TEX_TYPE_2D, mWidth, mHeight, 0, Ogre::PF_A8B8G8R8, Ogre::TU_DYNAMIC, this);
clear();
loadingListener->loadingOff();
}
void GlobalMap::render (Loading::Listener* loadingListener)
{
const MWWorld::ESMStore &esmStore =
MWBase::Environment::get().getWorld()->getStore();
// get the size of the world
MWWorld::Store<ESM::Cell>::iterator it = esmStore.get<ESM::Cell>().extBegin();
for (; it != esmStore.get<ESM::Cell>().extEnd(); ++it)
{
if (it->getGridX() < mMinX)
mMinX = it->getGridX();
if (it->getGridX() > mMaxX)
mMaxX = it->getGridX();
if (it->getGridY() < mMinY)
mMinY = it->getGridY();
if (it->getGridY() > mMaxY)
mMaxY = it->getGridY();
}
mWidth = mCellSize*(mMaxX-mMinX+1);
mHeight = mCellSize*(mMaxY-mMinY+1);
loadingListener->loadingOn();
loadingListener->setLabel("Creating map");
loadingListener->setProgressRange((mMaxX-mMinX+1) * (mMaxY-mMinY+1));
loadingListener->setProgress(0);
osg::ref_ptr<osg::Image> image = new osg::Image;
image->allocateImage(mWidth, mHeight, 1, GL_RGB, GL_UNSIGNED_BYTE);
unsigned char* data = image->data();
for (int x = mMinX; x <= mMaxX; ++x)
{
for (int y = mMinY; y <= mMaxY; ++y)
{
ESM::Land* land = esmStore.get<ESM::Land>().search (x,y);
if (land)
{
int mask = ESM::Land::DATA_WNAM;
if (!land->isDataLoaded(mask))
land->loadData(mask);
}
const ESM::Land::LandData *landData =
land ? land->getLandData (ESM::Land::DATA_WNAM) : 0;
for (int cellY=0; cellY<mCellSize; ++cellY)
{
for (int cellX=0; cellX<mCellSize; ++cellX)
{
int vertexX = static_cast<int>(float(cellX)/float(mCellSize) * 9);
int vertexY = static_cast<int>(float(cellY) / float(mCellSize) * 9);
int texelX = (x-mMinX) * mCellSize + cellX;
int texelY = (y-mMinY) * mCellSize + cellY;
unsigned char r,g,b;
float y = 0;
if (landData)
y = (landData->mWnam[vertexY * 9 + vertexX] << 4) / 2048.f;
else
y = (SCHAR_MIN << 4) / 2048.f;
if (y < 0)
{
r = static_cast<unsigned char>(14 * y + 38);
g = static_cast<unsigned char>(20 * y + 56);
b = static_cast<unsigned char>(18 * y + 51);
}
else if (y < 0.3f)
{
if (y < 0.1f)
y *= 8.f;
else
{
y -= 0.1f;
y += 0.8f;
}
r = static_cast<unsigned char>(66 - 32 * y);
g = static_cast<unsigned char>(48 - 23 * y);
b = static_cast<unsigned char>(33 - 16 * y);
}
else
{
y -= 0.3f;
y *= 1.428f;
r = static_cast<unsigned char>(34 - 29 * y);
g = static_cast<unsigned char>(25 - 20 * y);
b = static_cast<unsigned char>(17 - 12 * y);
}
data[texelY * mWidth * 3 + texelX * 3] = r;
data[texelY * mWidth * 3 + texelX * 3+1] = g;
data[texelY * mWidth * 3 + texelX * 3+2] = b;
}
}
loadingListener->increaseProgress();
if (land)
land->unloadData();
}
}
mBaseTexture = new osg::Texture2D;
mBaseTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
mBaseTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
mBaseTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
mBaseTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
mBaseTexture->setImage(image);
mBaseTexture->setResizeNonPowerOfTwoHint(false);
clear();
loadingListener->loadingOff();
}
void TerrainManager::cellAdded(MWWorld::Ptr::CellStore *store)
{
const int cellX = store->mCell->getGridX();
const int cellY = store->mCell->getGridY();
ESM::Land* land =
MWBase::Environment::get().getWorld()->getStore().get<ESM::Land>().search(cellX, cellY);
if (land == NULL) // no land data means we're not going to create any terrain.
return;
int dataRequired = ESM::Land::DATA_VHGT | ESM::Land::DATA_VCLR;
if (!land->isDataLoaded(dataRequired))
{
land->loadData(dataRequired);
}
//split the cell terrain into four segments
const int numTextures = ESM::Land::LAND_TEXTURE_SIZE/2;
for ( int x = 0; x < 2; x++ )
{
for ( int y = 0; y < 2; y++ )
{
Terrain::ImportData terrainData =
mTerrainGroup.getDefaultImportSettings();
const int terrainX = cellX * 2 + x;
const int terrainY = cellY * 2 + y;
//it makes far more sense to reallocate the memory here,
//and let Ogre deal with it due to the issues with deleting
//it at the wrong time if using threads (Which Terrain does)
terrainData.inputFloat = OGRE_ALLOC_T(float,
mLandSize*mLandSize,
MEMCATEGORY_GEOMETRY);
//copy the height data row by row
for ( int terrainCopyY = 0; terrainCopyY < mLandSize; terrainCopyY++ )
{
//the offset of the current segment
const size_t yOffset = y * (mLandSize-1) * ESM::Land::LAND_SIZE +
//offset of the row
terrainCopyY * ESM::Land::LAND_SIZE;
const size_t xOffset = x * (mLandSize-1);
memcpy(&terrainData.inputFloat[terrainCopyY*mLandSize],
&land->mLandData->mHeights[yOffset + xOffset],
mLandSize*sizeof(float));
}
std::map<uint16_t, int> indexes;
initTerrainTextures(&terrainData, cellX, cellY,
x * numTextures, y * numTextures,
numTextures, indexes, land->mPlugin);
if (mTerrainGroup.getTerrain(terrainX, terrainY) == NULL)
{
mTerrainGroup.defineTerrain(terrainX, terrainY, &terrainData);
mTerrainGroup.loadTerrain(terrainX, terrainY, true);
Terrain* terrain = mTerrainGroup.getTerrain(terrainX, terrainY);
initTerrainBlendMaps(terrain,
cellX, cellY,
x * numTextures, y * numTextures,
numTextures,
indexes);
terrain->setVisibilityFlags(RV_Terrain);
terrain->setRenderQueueGroup(RQG_Main);
// disable or enable global colour map (depends on available vertex colours)
if ( land->mLandData->mUsingColours )
{
TexturePtr vertex = getVertexColours(land,
cellX, cellY,
x*(mLandSize-1),
y*(mLandSize-1),
mLandSize);
mActiveProfile->setGlobalColourMapEnabled(true);
mActiveProfile->setGlobalColourMap (terrain, vertex->getName());
}
else
mActiveProfile->setGlobalColourMapEnabled (false);
}
}
}
// when loading from a heightmap, Ogre::Terrain does not update the derived data (normal map, LOD)
// synchronously, even if we supply synchronous = true parameter to loadTerrain.
// the following to be the only way to make sure derived data is ready when rendering the next frame.
while (mTerrainGroup.isDerivedDataUpdateInProgress())
{
// we need to wait for this to finish
OGRE_THREAD_SLEEP(5);
Root::getSingleton().getWorkQueue()->processResponses();
}
mTerrainGroup.freeTemporaryResources();
}