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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
109 lines
4.7 KiB
C++
109 lines
4.7 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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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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#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___LAYER_SHADER_MANAGER___H__
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#define __OPENSPACE_MODULE_GLOBEBROWSING___LAYER_SHADER_MANAGER___H__
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#include <modules/globebrowsing/rendering/layer/layermanager.h>
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#include <array>
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#include <string>
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namespace ghoul {
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namespace opengl {
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class ProgramObject;
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}
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}
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namespace openspace {
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namespace globebrowsing {
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/**
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* This class has ownership of an updated shader program for rendering tiles.
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*/
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class LayerShaderManager {
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public:
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/**
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* Data needed for shader preprocessing before compiling a layered texture shader
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* program.
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*
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* If a <code>LayerShaderPreprocessingData</code> is compared with another it can
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* be determined wheter or not a <code>LayerShaderManager</code> needs to
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* recompile its shader program. For each <code>TextureGroup</code> there is
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* information about how many layers it has and whether or not to blend the texture
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* levels.
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*/
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struct LayerShaderPreprocessingData {
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/**
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* Settings per texture group that contains shader preprocessing information.
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*/
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struct LayerGroupPreprocessingData {
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int lastLayerIdx;
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bool layerBlendingEnabled;
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bool operator==(const LayerGroupPreprocessingData& other) const;
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};
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std::array<LayerGroupPreprocessingData, LayerManager::NUM_LAYER_GROUPS>
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layeredTextureInfo;
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std::vector<std::pair<std::string, std::string> > keyValuePairs;
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bool operator==(const LayerShaderPreprocessingData& other) const;
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};
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LayerShaderManager(
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const std::string& shaderName,
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const std::string& vsPath,
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const std::string& fsPath);
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~LayerShaderManager();
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/**
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* Returns a pointer to a <code>ProgramObject</code> for rendering tiles.
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* \param <code>preprocessingData</code> determines wherer or not the shader
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* program needs to be re-compiled. If <code>preprocessingData</code> is different
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* from the last time this function was called the shader program will be
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* recompiled before returned.
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*/
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ghoul::opengl::ProgramObject* programObject(
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LayerShaderPreprocessingData preprocessingData);
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bool updatedOnLastCall();
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private:
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void recompileShaderProgram(LayerShaderPreprocessingData preprocessingData);
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std::unique_ptr<ghoul::opengl::ProgramObject> _programObject;
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LayerShaderPreprocessingData _preprocessingData;
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const std::string _shaderName;
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const std::string _vsPath;
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const std::string _fsPath;
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bool _updatedOnLastCall;
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};
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} // namespace globebrowsing
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} // namespace openspace
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#endif // __OPENSPACE_MODULE_GLOBEBROWSING___LAYER_SHADER_MANAGER___H__
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