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114 lines
4.7 KiB
C++
114 lines
4.7 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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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 <ghoul/logging/logmanager.h>
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#include <ghoul/filesystem/filesystem.h> // abspath
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#include <ghoul/misc/assert.h>
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#include <modules/globebrowsing/other/asynctilereader.h>
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#include <modules/globebrowsing/other/tileprovider.h>
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#include <modules/globebrowsing/geodetics/angle.h>
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namespace {
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const std::string _loggerCat = "AsyncTextureDataProvider";
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}
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namespace openspace {
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AsyncTileDataProvider::AsyncTileDataProvider(const std::string& filename, int minNumPixels, ThreadPool& pool)
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: _textureDataProvider(std::shared_ptr<TileDataset>(new TileDataset(filename, minNumPixels)))
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, _concurrentJobManager(pool)
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{
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}
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AsyncTileDataProvider::AsyncTileDataProvider(
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std::shared_ptr<TileDataset> textureDataProvider,
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ThreadPool& pool)
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: _textureDataProvider(textureDataProvider)
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, _concurrentJobManager(pool)
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{
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}
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AsyncTileDataProvider::~AsyncTileDataProvider() {
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}
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std::shared_ptr<TileDataset> AsyncTileDataProvider::getTextureDataProvider() const {
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return _textureDataProvider;
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}
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bool AsyncTileDataProvider::enqueueTextureData(const ChunkIndex& chunkIndex) {
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if (satisfiesEnqueueCriteria(chunkIndex)) {
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std::shared_ptr<TileLoadJob> job = std::shared_ptr<TileLoadJob>(
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new TileLoadJob(_textureDataProvider, chunkIndex));
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_concurrentJobManager.enqueueJob(job);
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_enqueuedTileRequests[chunkIndex.hashKey()] = chunkIndex;
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return true;
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}
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return false;
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}
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bool AsyncTileDataProvider::hasLoadedTextureData() const{
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return _concurrentJobManager.numFinishedJobs() > 0;
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}
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std::shared_ptr<TileIOResult> AsyncTileDataProvider::nextTileIOResult() {
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auto tileIOResult = _concurrentJobManager.popFinishedJob()->product();
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HashKey key = tileIOResult->rawTileData->chunkIndex.hashKey();
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if (_enqueuedTileRequests.find(key) != _enqueuedTileRequests.end()) {
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_enqueuedTileRequests.erase(key);
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}
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return tileIOResult;
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}
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bool AsyncTileDataProvider::satisfiesEnqueueCriteria(const ChunkIndex& chunkIndex) const {
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auto it = _enqueuedTileRequests.begin();
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auto end = _enqueuedTileRequests.end();
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for (; it != end; it++) {
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const ChunkIndex& otherChunk = it->second;
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if (chunkIndex.level == otherChunk.level &&
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chunkIndex.manhattan(otherChunk) < 1) {
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return false;
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}
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}
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return true;
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}
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void AsyncTileDataProvider::clearRequestQueue() {
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_concurrentJobManager.clearEnqueuedJobs();
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_enqueuedTileRequests.clear();
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}
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} // namespace openspace
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