TexCoords Atlas::getParentTileTexCoords(tileId id)
{
tileId parentId = tileId(id.z()-1, id.x()/2, id.y()/2);
if (parentId.z() == 0)
return TexCoords(0, glm::vec4(0.0f));
TexCoords parentCoords = getTileTexCoords(parentId);
if (parentCoords.texId == 0)
parentCoords = getParentTileTexCoords(parentId);
if (parentCoords.texId == 0)
return TexCoords(0, glm::vec4(0.0f));
glm::vec4 pCoords = parentCoords.coords;
glm::vec4 childCoords(0);
childCoords[0] = pCoords[0]+(pCoords[2]-pCoords[0])*0.5*(id.x()-parentId.x()*2);
childCoords[1] = pCoords[1]+(pCoords[3]-pCoords[1])*0.5*(id.y()-parentId.y()*2);
childCoords[2] = childCoords[0] + (pCoords[2]-pCoords[0])*0.5;
childCoords[3] = childCoords[1] + (pCoords[3]-pCoords[1])*0.5;
#ifdef _ATLAS_DEBUG
std::cout << "[Atlas] Found parent tile=" << parentId << "for tile=" << id << std::endl;
std::cout << "[Atlas] Parent coords=" << pCoords
<< "Child coords=" << childCoords << std::endl;
#endif
return TexCoords(parentCoords.texId, childCoords);
}
rspfDataObject* rspfTileCache::get(const rspfDpt3d &origin,
unsigned long resLevel)
{
rspfDataObject* result = NULL;
Iterator anIterator;
rspf_uint32 bucket = bucketHash(origin);
anIterator = theCache[bucket].find(tileId(origin));
while(anIterator != theCache[bucket].end())
{
CacheDataPtr info = (*anIterator).second;
if(info)
{
if(info->theOrigin == origin &&
info->theResLevel == resLevel)
{
return info->theCachedTile.get();
}
}
++anIterator;
}
return result;
}
rspfDataObject* rspfTileCache::remove(const rspfDpt3d &origin,
unsigned long resLevel)
{
Iterator anIterator;
rspfDataObject *result;
rspf_uint32 bucket = bucketHash(origin);
anIterator = theCache[bucket].find(tileId(origin));
while(anIterator != theCache[bucket].end())
{
CacheDataPtr info = (*anIterator).second;
if(info)
{
if(info->theOrigin == origin &&
info->theResLevel == resLevel)
{
theCache[bucket].erase(anIterator);
theSizeInBytes -= info->theCachedTile->getDataSizeInBytes();
result = info->theCachedTile.get();
delete info;
return result;
}
}
++anIterator;
}
return NULL;
}
void testGetStylesheet() {
// pass zoomlevel and stylesheet directory here
shared_ptr<Configuration> config;
shared_ptr<RequestManager> requestManager;
StylesheetManager stylesheetManager(config);
stylesheetManager.startStylesheetObserving(requestManager);
shared_ptr<TileIdentifier> tileId(new TileIdentifier(0, 0, 2, string("path"), TileIdentifier::Format::PNG));
shared_ptr<Stylesheet> stylesheet = stylesheetManager.getStylesheet(tileId);
}
void testMatch() {
shared_ptr<Stylesheet> stylesheet = Stylesheet::Load(string("test/stylesheet.mapcss"), data, 1000);
shared_ptr<std::vector<NodeId> > nodeIDs(new std::vector<NodeId>());
shared_ptr<std::vector<WayId> > wayIDs(new std::vector<WayId>());
shared_ptr<std::vector<RelId> > relIDs(new std::vector<RelId>());
shared_ptr<TileIdentifier> tileId(new TileIdentifier(0, 0, 2, string("path"), TileIdentifier::Format::PNG));
RenderAttributes* attributes;
stylesheet->match(nodeIDs, wayIDs, relIDs, tileId, attributes);
}
rspfDataObject* rspfTileCache::insert(const rspfDpt3d &origin,
rspfDataObject* data,
unsigned long resLevel)
{
rspf_uint32 bucket = bucketHash(origin);
// make sure we keep up with the current size of the
// cache in bytes. This is only the count of the data
// and not any overhead required by the cache.
theSizeInBytes += data->getDataSizeInBytes();
theCache[bucket].insert(make_pair(tileId(origin),
new CacheData(data,
origin,
resLevel)));
return data;
}
QRgb NwwMapImage::pixel( int const x, int const y )
{
int const tileX = x / m_tileEdgeLengthPixel;
int const tileY = y / m_tileEdgeLengthPixel;
// fast check if tile is missing
int const tileKey = tileId( tileX, tileY );
if ( m_tileMissing.contains( tileKey ))
return m_emptyPixel;
QPair<QImage, bool> potentialTile = tile( tileX, tileY );
if ( !potentialTile.second )
return m_emptyPixel;
else
return potentialTile.first.pixel( x % m_tileEdgeLengthPixel,
m_tileEdgeLengthPixel - y % m_tileEdgeLengthPixel - 1 );
}
Atlas::Atlas(unsigned int w, unsigned int h, unsigned int tileW, unsigned int tileH, unsigned int n)
{
// Generate the OpenGL texture object
format = GL_RGBA;
width = w;
height = h;
tileWidth = tileW;
tileHeight = tileH;
nAtlases = n;
for (int i = 0; i < nAtlases; i++) {
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, (void *)NULL);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
textureIds.push_back(texture);
}
tilesInRow = w/tileWidth;
tilesInCol = h/tileHeight;
tilesInAtlas = tilesInRow*tilesInCol;
totalTiles = tilesInAtlas * nAtlases;
tilesInPositions.resize(totalTiles);
usedTiles.resize(totalTiles);
usedTiles.assign(totalTiles, false);
for (int i = 0; i < totalTiles; i++) {
tilesInPositions.push_back(tileId(0,0,0));
freePositions.push_back(i);
}
}
QPair<QImage, bool> NwwMapImage::tile( int const tileX, int const tileY )
{
int const tileKey = tileId( tileX, tileY );
// first check cache
QImage * const cachedTile = m_tileCache.object( tileKey );
if ( cachedTile )
return QPair<QImage, bool>( *cachedTile, true );
QString const filename = QString("%1/%2/%2_%3.jpg")
.arg( m_baseDirectory.path() )
.arg( tileY, 4, 10, QLatin1Char('0'))
.arg( tileX, 4, 10, QLatin1Char('0'));
QImage tile;
bool const loaded = tile.load( filename );
if ( !loaded ) {
m_tileMissing.insert( tileKey );
//qDebug() << "Tile" << filename << "not found";
} else {
m_tileCache.insert( tileKey, new QImage( tile ), tile.byteCount() );
//qDebug() << "Tile" << filename << "loaded and inserted in cache";
}
return QPair<QImage, bool>( tile, loaded );
}
rspf_uint32 rspfTileCache::bucketHash(const rspfDpt3d &aPt)
{
return tileId(aPt)%theNumberOfBuckets;
}
/*----------------------------------------------------------------------------*/
void SAO::onParse(StreamAccessLayer &streamAccessLayer, Decoder::State &decoder)
{
/* start: derived from arguments */
auto saoCoord = get<Coord>()->inUnits();
/* end: derived from arguments */
const auto rx = saoCoord.x();
const auto ry = saoCoord.y();
/* start: inferrable */
auto saoMergeLeftFlag = embed<SaoMergeLeftFlag>(*this);
auto saoMergeUpFlag = embed<SaoMergeUpFlag>(*this);
auto saoTypeIdxLuma = embed<SaoTypeIdxLuma>(*this);
auto saoTypeIdxChroma = embed<SaoTypeIdxChroma>(*this);
auto saoOffsetAbs = embed<SaoOffsetAbs>(*this);
auto saoOffsetSign = embed<SaoOffsetSign>(*this);
auto saoBandPosition = embed<SaoBandPosition>(*this);
auto saoEoClassLuma = embed<SaoEoClassLuma>(*this);
auto saoEoClassChroma = embed<SaoEoClassChroma>(*this);
auto saoTypeIdx = embed<SaoTypeIdx>(*this);
auto saoOffsetVal = embed<SaoOffsetVal>(*this);
auto saoEoClass = embed<SaoEoClass>(*this);
/* end: inferrable */
const auto picture = decoder.picture();
const auto chromaFormatIdc = picture->chromaFormatIdc;
const auto slice = picture->slice(saoCoord);
const auto sh = slice->header();
const auto ctu = picture->getCodingTreeUnit(saoCoord);
typedef SliceSegmentHeader SSH;
typedef CodingTreeUnit CTU;
const auto sliceAddrInRs = slice->addr().inRs;
const auto ctbAddrInRs = ctu->get<CTU::CtbAddrInRs>()->inUnits();
if(0_pel < rx)
{
const auto leftCtbInSliceSeg = ctbAddrInRs > sliceAddrInRs;
const auto leftCtbInTile =
picture->tileId(picture->toCoord(ctbAddrInRs))
== picture->tileId(picture->toCoord(ctbAddrInRs - 1_ctb));
if(leftCtbInSliceSeg && leftCtbInTile)
{
parse(streamAccessLayer, decoder, *saoMergeLeftFlag);
}
}
if(0_pel < ry && !*saoMergeLeftFlag)
{
const auto picWidthInCtbsY = picture->widthInCtbsY;
const auto upCtbInSliceSeg =
(ctbAddrInRs - picWidthInCtbsY) >= sliceAddrInRs;
const auto upCtbInTile =
picture->tileId(picture->toCoord(ctbAddrInRs))
== picture->tileId(picture->toCoord(ctbAddrInRs - picWidthInCtbsY));
if(upCtbInSliceSeg && upCtbInTile)
{
parse(streamAccessLayer, decoder, *saoMergeUpFlag);
}
}
if(*saoMergeLeftFlag || *saoMergeUpFlag)
{
const auto deriveAdjCoord =
[saoCoord, saoMergeLeftFlag, saoMergeUpFlag]()
{
if(*saoMergeLeftFlag)
{
syntaxCheck(0_pel < saoCoord.x());
return PelCoord{saoCoord.x() - 1_pel, saoCoord.y()};
}
else if(*saoMergeUpFlag)
{
syntaxCheck(0_pel < saoCoord.y());
return PelCoord{saoCoord.x(), saoCoord.y() - 1_pel};
}
else
{
syntaxCheck(false);
}
return PelCoord{saoCoord};
};
const auto adjCoord = deriveAdjCoord();
const auto adj = picture->getCodingTreeUnit(adjCoord)->getSAO();
saoTypeIdx->merge(*adj);
saoOffsetVal->merge(*adj);
saoBandPosition->merge(*adj);
saoEoClass->merge(*adj);
}
else
{
for(const auto cIdx : EnumRange<Plane>())
{
const auto component = toComponent(cIdx);
const auto isLuma = Component::Luma == component;
const auto isChroma = !isLuma;
if(
isLuma && !(*sh->get<SSH::SliceSaoLumaFlag>())
|| ChromaFormatIdc::f400 == chromaFormatIdc && isChroma
|| isChroma && !(*sh->get<SSH::SliceSaoChromaFlag>()))
{
continue;
}
if(Plane::Y == cIdx)
{
parse(streamAccessLayer, decoder, *saoTypeIdxLuma);
saoTypeIdx->set(*saoTypeIdxLuma);
}
else if(Plane::Cb == cIdx)
{
parse(streamAccessLayer, decoder, *saoTypeIdxChroma);
saoTypeIdx->set(*saoTypeIdxChroma);
}
if(SaoType::NotApplied != (*saoTypeIdx)[component])
{
for(auto i = 0; i < 4; ++i)
{
parse(streamAccessLayer, decoder, *saoOffsetAbs, cIdx, i);
}
saoOffsetSign->init(cIdx, (*saoTypeIdx)[component]);
if(SaoType::BandOffset == (*saoTypeIdx)[component])
{
for(auto i = 0; i < 4; ++i)
{
if(0 != (*saoOffsetAbs)[makeTuple(cIdx, i)])
{
parse(streamAccessLayer, decoder, *saoOffsetSign, cIdx, i);
}
}
parse(streamAccessLayer, decoder, *saoBandPosition, cIdx);
}
else
{
syntaxCheck(SaoType::EdgeOffset == (*saoTypeIdx)[component]);
if(Plane::Y == cIdx)
{
parse(streamAccessLayer, decoder, *saoEoClassLuma);
}
if(Plane::Cb == cIdx)
{
parse(streamAccessLayer, decoder, *saoEoClassChroma);
}
}
}
}
typedef PpsRangeExtension PPSRE;
const auto ppsre = picture->ppsre;
const auto saoOffsetScaleLuma =
ppsre ? ppsre->get<PPSRE::SaoOffsetScaleLuma>()->inUnits() : 0_log2;
const auto saoOffsetScaleChroma =
ppsre ? ppsre->get<PPSRE::SaoOffsetScaleChroma>()->inUnits() : 0_log2;
saoOffsetVal->set(
*saoOffsetAbs, *saoOffsetSign,
saoOffsetScaleLuma, saoOffsetScaleChroma);
saoEoClass->set(*saoEoClassLuma, *saoEoClassChroma);
}
}
ossim_uint32 ossimTileCache::bucketHash(const ossimDpt3d &aPt)
{
return tileId(aPt)%theNumberOfBuckets;
}
