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https://github.com/OpenSpace/OpenSpace.git
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0d03177d43
* Initial restructuring of the Globebrowsing branch * Update Ghoul repository Fix include guards * More cleanup * Split texttileprovider subclasses into separate files * Move TileProviders into namespace * Convert static class methods into free functions * Splitting tile subclasses into their own files Remove `using namespace` from header file * Split TileDataSet subclass into separate file Update SGCT reference * Move shader preprocessing data into internal class * More Globebrowsing cleanup * More cleanup Remove unused Convexhull class
93 lines
4.1 KiB
C++
93 lines
4.1 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/tiledataset.h>
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#include <gdal_priv.h>
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namespace {
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const std::string _loggerCat = "Tile";
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}
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namespace openspace {
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namespace globebrowsing {
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const Tile Tile::TileUnavailable = {nullptr, nullptr, Tile::Status::Unavailable };
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Tile Tile::createPlainTile(const glm::uvec2& size, const glm::uvec4& color) {
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using namespace ghoul::opengl;
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// Create pixel data
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int numBytes = size.x * size.y * 4 * 1;
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char* pixels = new char[numBytes];
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size_t numPixels = size.x * size.y;
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size_t i = 0;
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for (size_t p = 0; p < numPixels; p++){
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pixels[i++] = color.r;
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pixels[i++] = color.g;
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pixels[i++] = color.b;
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pixels[i++] = color.a;
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}
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// Create ghoul texture
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auto texture = std::make_shared<Texture>(glm::uvec3(size, 1));
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texture->setDataOwnership(Texture::TakeOwnership::Yes);
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texture->setPixelData(pixels);
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texture->uploadTexture();
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texture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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// Create tile
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Tile tile;
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tile.status = Tile::Status::OK;
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tile.metaData = nullptr;
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tile.texture = texture;
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return tile;
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}
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glm::vec2 Tile::compensateSourceTextureSampling(glm::vec2 startOffset, glm::vec2 sizeDiff,
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glm::uvec2 resolution, glm::vec2 tileUV)
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{
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glm::vec2 sourceSize = glm::vec2(resolution) + sizeDiff;
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glm::vec2 currentSize = glm::vec2(resolution);
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glm::vec2 sourceToCurrentSize = currentSize / sourceSize;
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tileUV = sourceToCurrentSize * (tileUV - startOffset / sourceSize);
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return tileUV;
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}
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glm::vec2 Tile::TileUvToTextureSamplePosition(const TileUvTransform& uvTransform,
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glm::vec2 tileUV, glm::uvec2 resolution)
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{
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glm::vec2 uv = uvTransform.uvOffset + uvTransform.uvScale * tileUV;
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uv = compensateSourceTextureSampling(
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TileDataset::tilePixelStartOffset,
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TileDataset::tilePixelSizeDifference,
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resolution,
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uv);
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return uv;
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}
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} // namespace globebrowsing
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} // namespace openspace
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