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265 lines
11 KiB
C++
265 lines
11 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include <modules/globebrowsing/tile/tileprovider/defaulttileprovider.h>
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#include <modules/globebrowsing/globebrowsingmodule.h>
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#include <modules/globebrowsing/cache/memoryawaretilecache.h>
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#include <modules/globebrowsing/rendering/layer/layergroupid.h>
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#include <modules/globebrowsing/rendering/layer/layermanager.h>
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#include <modules/globebrowsing/tile/asynctiledataprovider.h>
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#include <modules/globebrowsing/tile/rawtiledatareader/gdalrawtiledatareader.h>
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#include <modules/globebrowsing/tile/rawtiledatareader/simplerawtiledatareader.h>
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#include <modules/globebrowsing/tile/rawtiledatareader/rawtiledatareader.h>
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#include <modules/globebrowsing/tile/rawtile.h>
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#include <modules/globebrowsing/tile/rawtiledatareader/iodescription.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/engine/moduleengine.h>
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#include <ghoul/logging/logmanager.h>
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#include <ghoul/filesystem/filesystem>
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#include <ghoul/misc/dictionary.h>
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#include <ghoul/opengl/texture.h>
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namespace {
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const char* KeyPerformPreProcessing = "PerformPreProcessing";
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const char* KeyTilePixelSize = "TilePixelSize";
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const char* KeyFilePath = "FilePath";
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const char* KeyBasePath = "BasePath";
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const char* KeyPreCacheLevel = "PreCacheLevel";
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static const openspace::properties::Property::PropertyInfo FilePathInfo = {
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"FilePath",
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"File Path",
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"The path of the GDAL file or the image file that is to be used in this tile "
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"provider."
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};
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static const openspace::properties::Property::PropertyInfo TilePixelSizeInfo = {
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"TilePixelSize",
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"Tile Pixel Size",
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"This value is the preferred size (in pixels) for each tile. Choosing the right "
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"value is a tradeoff between more efficiency (larger images) and better quality "
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"(smaller images). The tile pixel size has to be smaller than the size of the "
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"complete image if a single image is used."
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};
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}
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namespace openspace::globebrowsing::tileprovider {
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DefaultTileProvider::DefaultTileProvider(const ghoul::Dictionary& dictionary)
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: TileProvider(dictionary)
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, _filePath(FilePathInfo, "")
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, _tilePixelSize(TilePixelSizeInfo, 32, 32, 2048)
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, _preCacheLevel(0)
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{
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_tileCache = OsEng.moduleEngine().module<GlobeBrowsingModule>()->tileCache();
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_name = "Name unspecified";
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dictionary.getValue("Name", _name);
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std::string _loggerCat = "DefaultTileProvider : " + _name;
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// 1. Get required Keys
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std::string filePath;
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dictionary.getValue<std::string>(KeyFilePath, filePath);
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//filePath = absPath(filePath);
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_filePath.setValue(filePath);
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if (!dictionary.getValue<layergroupid::GroupID>("LayerGroupID", _layerGroupID)) {
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ghoul_assert(false, "Unknown layer group id");
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}
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// 2. Initialize default values for any optional Keys
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// getValue does not work for integers
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double pixelSize = 0.0;
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int tilePixelSize = 0;
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if (dictionary.getValue<double>(KeyTilePixelSize, pixelSize)) {
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LDEBUG("Default pixel size overridden: " << pixelSize);
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tilePixelSize = pixelSize;
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}
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TileTextureInitData initData(LayerManager::getTileTextureInitData(
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_layerGroupID, tilePixelSize));
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_tilePixelSize.setValue(initData.dimensionsWithoutPadding().x);
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_performPreProcessing =
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LayerManager::shouldPerformPreProcessingOnLayergroup(_layerGroupID);
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if (dictionary.getValue<bool>(KeyPerformPreProcessing, _performPreProcessing)) {
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LDEBUG("Default PerformPreProcessing overridden: " << _performPreProcessing);
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}
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if (dictionary.hasKeyAndValue<double>(KeyPreCacheLevel)) {
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_preCacheLevel = static_cast<int>(dictionary.value<double>(KeyPreCacheLevel));
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}
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dictionary.getValue(KeyBasePath, _basePath);
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initAsyncTileDataReader(initData);
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// Properties
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addProperty(_filePath);
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addProperty(_tilePixelSize);
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}
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DefaultTileProvider::DefaultTileProvider(std::shared_ptr<AsyncTileDataProvider> tileReader)
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: _asyncTextureDataProvider(tileReader)
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, _filePath(FilePathInfo, "")
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, _tilePixelSize(TilePixelSizeInfo, 32, 32, 2048)
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{}
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DefaultTileProvider::~DefaultTileProvider() {}
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void DefaultTileProvider::update() {
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if (_asyncTextureDataProvider) {
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_asyncTextureDataProvider->update();
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initTexturesFromLoadedData();
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if (_asyncTextureDataProvider->shouldBeDeleted()) {
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_asyncTextureDataProvider = nullptr;
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TileTextureInitData initData(LayerManager::getTileTextureInitData(
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_layerGroupID, _tilePixelSize));
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initAsyncTileDataReader(initData);
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}
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}
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}
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void DefaultTileProvider::reset() {
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_tileCache->clear();
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if (_asyncTextureDataProvider) {
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_asyncTextureDataProvider->prepairToBeDeleted();
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}
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else {
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TileTextureInitData initData(LayerManager::getTileTextureInitData(
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_layerGroupID, _tilePixelSize));
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initAsyncTileDataReader(initData);
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}
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}
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int DefaultTileProvider::maxLevel() {
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if (_asyncTextureDataProvider) {
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return _asyncTextureDataProvider->getRawTileDataReader()->maxChunkLevel();
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}
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else {
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// Current theoretical maximum based on the number of hashes that are possible
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// to uniquely identify a tile. See ProviderTileHasher in memoryawaretilecache.h
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return 22;
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}
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}
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Tile DefaultTileProvider::getTile(const TileIndex& tileIndex) {
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if (_asyncTextureDataProvider) {
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if (tileIndex.level > maxLevel()) {
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return Tile(nullptr, nullptr, Tile::Status::OutOfRange);
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}
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cache::ProviderTileKey key = { tileIndex, uniqueIdentifier() };
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Tile tile = _tileCache->get(key);
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if (tile.texture() == nullptr) {
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_asyncTextureDataProvider->enqueueTileIO(tileIndex);
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}
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return tile;
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}
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else {
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return Tile(nullptr, nullptr, Tile::Status::Unavailable);
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}
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}
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float DefaultTileProvider::noDataValueAsFloat() {
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if (_asyncTextureDataProvider) {
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return _asyncTextureDataProvider->noDataValueAsFloat();
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}
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else {
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return std::numeric_limits<float>::min();
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}
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}
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void DefaultTileProvider::initTexturesFromLoadedData() {
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if (_asyncTextureDataProvider) {
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std::shared_ptr<RawTile> rawTile = _asyncTextureDataProvider->popFinishedRawTile();
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if (rawTile) {
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cache::ProviderTileKey key = { rawTile->tileIndex, uniqueIdentifier() };
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ghoul_assert(!_tileCache->exist(key), "Tile must not be existing in cache");
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_tileCache->createTileAndPut(key, rawTile);
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}
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}
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}
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void DefaultTileProvider::initAsyncTileDataReader(TileTextureInitData initData) {
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std::string _loggerCat = "DefaultTileProvider : " + _name;
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RawTileDataReader::PerformPreprocessing preprocess =
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_performPreProcessing ? RawTileDataReader::PerformPreprocessing::Yes :
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RawTileDataReader::PerformPreprocessing::No;
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// Initialize instance variables
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#ifdef GLOBEBROWSING_USE_GDAL
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auto tileDataset = std::make_shared<GdalRawTileDataReader>(_filePath, initData,
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_basePath, preprocess);
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#else // GLOBEBROWSING_USE_GDAL
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auto tileDataset = std::make_shared<SimpleRawTileDataReader>(_filePath, initData,
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preprocess);
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#endif // GLOBEBROWSING_USE_GDAL
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_asyncTextureDataProvider = std::make_shared<AsyncTileDataProvider>(_name, tileDataset);
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if (_preCacheLevel > -1) {
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LDEBUG("Precaching '" << _filePath << "' with level '" << _preCacheLevel << "'");
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for (int level = 0; level <= _preCacheLevel; ++level) {
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for (int x = 0; x <= level * 2; ++x) {
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for (int y = 0; y <= level; ++y) {
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_asyncTextureDataProvider->enqueueTileIO({ x, y, level });
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}
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}
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}
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}
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}
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Tile::Status DefaultTileProvider::getTileStatus(const TileIndex& tileIndex) {
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if (_asyncTextureDataProvider) {
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auto rawTileDataReader = _asyncTextureDataProvider->getRawTileDataReader();
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if (tileIndex.level > rawTileDataReader->maxChunkLevel()) {
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return Tile::Status::OutOfRange;
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}
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cache::ProviderTileKey key = { tileIndex, uniqueIdentifier() };
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return _tileCache->get(key).status();
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}
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else {
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return Tile::Status::Unavailable;
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}
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}
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TileDepthTransform DefaultTileProvider::depthTransform() {
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if (_asyncTextureDataProvider) {
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return _asyncTextureDataProvider->getRawTileDataReader()->getDepthTransform();
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}
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else {
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return { 1.0f, 0.0f };
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}
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}
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} // namespace openspace::globebrowsing::tileprovider
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