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https://github.com/OpenSpace/OpenSpace.git
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231 lines
10 KiB
C++
231 lines
10 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/rendering/layershadermanager.h>
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#include <modules/globebrowsing/globes/renderableglobe.h>
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#include <modules/globebrowsing/globes/chunkedlodglobe.h>
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#include <modules/globebrowsing/chunk/chunk.h>
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#include <modules/globebrowsing/tile/rawtiledatareader/rawtiledatareader.h>
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#include <modules/globebrowsing/rendering/layer/layermanager.h>
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#include <modules/globebrowsing/rendering/layer/layergroup.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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#include <ghoul/opengl/programobject.h>
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namespace openspace::globebrowsing {
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bool LayerShaderManager::LayerShaderPreprocessingData::LayerGroupPreprocessingData::operator==(
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const LayerGroupPreprocessingData& other) const {
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return layerType == other.layerType &&
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blendMode == other.blendMode &&
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layerAdjustmentType == other.layerAdjustmentType &&
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lastLayerIdx == other.lastLayerIdx &&
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layerBlendingEnabled == other.layerBlendingEnabled;
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}
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bool LayerShaderManager::LayerShaderPreprocessingData::operator==(
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const LayerShaderPreprocessingData& other) const {
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if (layeredTextureInfo.size() != other.layeredTextureInfo.size() ||
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keyValuePairs.size() != other.keyValuePairs.size()) {
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return false;
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}
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else {
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bool equal = true;
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for (size_t i = 0; i < layeredTextureInfo.size(); i++) {
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equal &= (layeredTextureInfo[i] == other.layeredTextureInfo[i]);
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}
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for (size_t i = 0; i < keyValuePairs.size(); i++) {
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equal &= (keyValuePairs[i] == other.keyValuePairs[i]);
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}
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return equal;
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}
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}
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LayerShaderManager::LayerShaderPreprocessingData
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LayerShaderManager::LayerShaderPreprocessingData::get(
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const RenderableGlobe& globe)
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{
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LayerShaderManager::LayerShaderPreprocessingData preprocessingData;
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std::shared_ptr<LayerManager> layerManager = globe.chunkedLodGlobe()->layerManager();
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for (size_t i = 0; i < layergroupid::NUM_LAYER_GROUPS; i++) {
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LayerShaderManager::LayerShaderPreprocessingData::LayerGroupPreprocessingData
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layeredTextureInfo;
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const LayerGroup& layerGroup = layerManager->layerGroup(i);
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std::vector<std::shared_ptr<Layer>> layers = layerGroup.activeLayers();
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// This check was implicit before; not sure if it will fire or will be handled
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// elsewhere
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//ghoul_assert(
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// !layerGroup.activeLayers().empty(),
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// "If activeLayers is empty the following line will lead to an overflow"
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//);
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layeredTextureInfo.lastLayerIdx = static_cast<int>(
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layerGroup.activeLayers().size() - 1
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);
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layeredTextureInfo.layerBlendingEnabled = layerGroup.layerBlendingEnabled();
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for (const std::shared_ptr<Layer>& layer : layers) {
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layeredTextureInfo.layerType.push_back(layer->type());
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layeredTextureInfo.blendMode.push_back(layer->blendMode());
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layeredTextureInfo.layerAdjustmentType.push_back(layer->layerAdjustment().type());
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}
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preprocessingData.layeredTextureInfo[i] = layeredTextureInfo;
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}
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const RenderableGlobe::GeneralProperties& generalProps = globe.generalProperties();
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const RenderableGlobe::DebugProperties& debugProps = globe.debugProperties();
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auto& pairs = preprocessingData.keyValuePairs;
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pairs.emplace_back("useAccurateNormals",
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std::to_string(generalProps.useAccurateNormals)
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);
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pairs.emplace_back("useAtmosphere", std::to_string(generalProps.atmosphereEnabled));
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pairs.emplace_back("performShading", std::to_string(generalProps.performShading));
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pairs.emplace_back("showChunkEdges", std::to_string(debugProps.showChunkEdges));
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pairs.emplace_back("showHeightResolution",
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std::to_string(debugProps.showHeightResolution)
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);
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pairs.emplace_back("showHeightIntensities",
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std::to_string(debugProps.showHeightIntensities)
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);
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pairs.emplace_back("defaultHeight", std::to_string(Chunk::DEFAULT_HEIGHT));
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return preprocessingData;
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}
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LayerShaderManager::LayerShaderManager(const std::string& shaderName,
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const std::string& vsPath,
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const std::string& fsPath)
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: _shaderName(shaderName)
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, _vsPath(vsPath)
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, _fsPath(fsPath)
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, _updatedOnLastCall(false)
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{}
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LayerShaderManager::~LayerShaderManager() {
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if (_programObject) {
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RenderEngine& renderEngine = OsEng.renderEngine();
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renderEngine.removeRenderProgram(_programObject);
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_programObject = nullptr;
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}
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}
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ghoul::opengl::ProgramObject* LayerShaderManager::programObject() const {
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ghoul_assert(_programObject, "Program does not exist. Needs to be compiled!");
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return _programObject.get();
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}
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void LayerShaderManager::recompileShaderProgram(
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LayerShaderPreprocessingData preprocessingData)
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{
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_preprocessingData = preprocessingData;
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ghoul::Dictionary shaderDictionary;
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// Different layer types can be height layers or color layers for example.
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// These are used differently within the shaders.
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auto textureTypes = _preprocessingData.layeredTextureInfo;
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for (size_t i = 0; i < textureTypes.size(); i++) {
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// lastLayerIndex must be at least 0 for the shader to compile,
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// the layer type is inactivated by setting use to false
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std::string groupName = layergroupid::LAYER_GROUP_NAMES[i];
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shaderDictionary.setValue(
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"lastLayerIndex" + groupName,
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glm::max(textureTypes[i].lastLayerIdx, 0)
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);
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shaderDictionary.setValue(
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"use" + groupName,
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textureTypes[i].lastLayerIdx >= 0
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);
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shaderDictionary.setValue(
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"blend" + groupName,
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textureTypes[i].layerBlendingEnabled
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);
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// This is to avoid errors from shader preprocessor
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std::string keyLayerType = groupName + "0" + "LayerType";
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shaderDictionary.setValue(keyLayerType, 0);
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for (int j = 0; j < textureTypes[i].lastLayerIdx + 1; ++j) {
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std::string key = groupName + std::to_string(j) + "LayerType";
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shaderDictionary.setValue(key, static_cast<int>(textureTypes[i].layerType[j]));
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}
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// This is to avoid errors from shader preprocessor
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std::string keyBlendMode = groupName + "0" + "BlendMode";
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shaderDictionary.setValue(keyBlendMode, 0);
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for (int j = 0; j < textureTypes[i].lastLayerIdx + 1; ++j) {
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std::string key = groupName + std::to_string(j) + "BlendMode";
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shaderDictionary.setValue(key, static_cast<int>(textureTypes[i].blendMode[j]));
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}
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// This is to avoid errors from shader preprocessor
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std::string keyLayerAdjustmentType = groupName + "0" + "LayerAdjustmentType";
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shaderDictionary.setValue(keyLayerAdjustmentType, 0);
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for (int j = 0; j < textureTypes[i].lastLayerIdx + 1; ++j) {
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std::string key = groupName + std::to_string(j) + "LayerAdjustmentType";
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shaderDictionary.setValue(key, static_cast<int>(textureTypes[i].layerAdjustmentType[j]));
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}
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}
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ghoul::Dictionary layerGroupNames;
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for (int i = 0; i < layergroupid::NUM_LAYER_GROUPS; ++i) {
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layerGroupNames.setValue(std::to_string(i), layergroupid::LAYER_GROUP_NAMES[i]);
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}
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shaderDictionary.setValue("layerGroups", layerGroupNames);
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// Other settings such as "useAtmosphere"
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auto keyValuePairs = _preprocessingData.keyValuePairs;
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for (size_t i = 0; i < keyValuePairs.size(); i++) {
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shaderDictionary.setValue(keyValuePairs[i].first, keyValuePairs[i].second);
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}
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// Remove old program
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OsEng.renderEngine().removeRenderProgram(_programObject);
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_programObject = OsEng.renderEngine().buildRenderProgram(
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_shaderName,
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_vsPath,
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_fsPath,
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shaderDictionary
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);
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ghoul_assert(_programObject != nullptr, "Failed to initialize programObject!");
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using IgnoreError = ghoul::opengl::ProgramObject::ProgramObject::IgnoreError;
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_programObject->setIgnoreSubroutineUniformLocationError(IgnoreError::Yes);
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_updatedOnLastCall = true;
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}
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bool LayerShaderManager::updatedOnLastCall() {
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return _updatedOnLastCall;
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}
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} // namespace openspace::globebrowsing
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