Moving onscreen gui into its own module

modules/onscreengui/src/guiperformancecomponent.cpp

@@ -0,0 +1,117 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014                                                                    *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#include <modules/onscreengui/include/guiperformancecomponent.h>
+
+#include <openspace/engine/openspaceengine.h>
+#include <openspace/rendering/renderengine.h>
+#include <ghoul/misc/sharedmemory.h>
+#include <imgui.h>
+#include <algorithm>
+
+namespace {
+	const std::string _loggerCat = "GuiPerformanceComponent";
+}
+
+namespace openspace {
+namespace gui {
+
+void GuiPerformanceComponent::initialize() {
+	_minMaxValues[0] = 100.f;
+	_minMaxValues[1] = 250.f;
+}
+
+void GuiPerformanceComponent::deinitialize() {
+	delete _performanceMemory;
+	_performanceMemory = nullptr;
+}
+
+void GuiPerformanceComponent::render() {
+	// Copy and paste from renderengine.cpp::storePerformanceMeasurements method
+//	const int8_t Version = 0;
+	const int nValues = 250;
+	const int lengthName = 256;
+	const int maxValues = 256;
+
+	struct PerformanceLayout {
+		int8_t version;
+		int32_t nValuesPerEntry;
+		int32_t nEntries;
+		int32_t maxNameLength;
+		int32_t maxEntries;
+
+		struct PerformanceLayoutEntry {
+			char name[lengthName];
+			float renderTime[nValues];
+			float updateRenderable[nValues];
+			float updateEphemeris[nValues];
+
+			int32_t currentRenderTime;
+			int32_t currentUpdateRenderable;
+			int32_t currentUpdateEphemeris;
+		};
+
+		PerformanceLayoutEntry entries[maxValues];
+	};
+
+	ImGui::Begin("Performance", &_isEnabled);
+	if (OsEng.renderEngine()->doesPerformanceMeasurements() &&
+			ghoul::SharedMemory::exists(RenderEngine::PerformanceMeasurementSharedData))
+	{
+		ImGui::SliderFloat2("Min values, max Value", _minMaxValues, 0.f, 10000.f);
+		_minMaxValues[1] = fmaxf(_minMaxValues[0], _minMaxValues[1]);
+		
+
+		if (!_performanceMemory)
+			_performanceMemory = new ghoul::SharedMemory(RenderEngine::PerformanceMeasurementSharedData);
+
+
+		PerformanceLayout* layout = reinterpret_cast<PerformanceLayout*>(_performanceMemory->pointer());
+
+		for (int i = 0; i < layout->nEntries; ++i) {
+			const PerformanceLayout::PerformanceLayoutEntry& entry = layout->entries[i];
+
+			if (ImGui::CollapsingHeader(entry.name)) {
+				std::string updateEphemerisTime = std::to_string(entry.updateEphemeris[entry.currentUpdateEphemeris - 1]) + "us";
+				ImGui::PlotLines("UpdateEphemeris", &entry.updateEphemeris[0], layout->nValuesPerEntry, 0, updateEphemerisTime.c_str(), _minMaxValues[0], _minMaxValues[1], ImVec2(0, 40));
+
+				std::string updateRenderableTime = std::to_string(entry.updateRenderable[entry.currentUpdateRenderable - 1]) + "us";
+				ImGui::PlotLines("UpdateRender", &entry.updateRenderable[0], layout->nValuesPerEntry, 0, updateRenderableTime.c_str(), _minMaxValues[0], _minMaxValues[1], ImVec2(0, 40));
+
+				std::string renderTime = std::to_string(entry.renderTime[entry.currentRenderTime - 1]) + "us";
+				ImGui::PlotLines("RenderTime", &entry.renderTime[0], layout->nValuesPerEntry, 0, renderTime.c_str(), _minMaxValues[0], _minMaxValues[1], ImVec2(0, 40));
+			}
+		}
+	}
+	else {
+		ImGui::TextWrapped("Performance monitoring is disabled. Enable with "
+						   "'openspace.setPerformanceMeasurement(true)'");
+	}
+
+	ImGui::End();
+}
+
+
+} // namespace gui
+} // namespace openspace