Rebuild trinity visualizer from bare SDL and OpenGL to using Raylib. Added Code for serial parsing on linux. Current functionality reads incoming quaternion packet data coming in over serial and displays the values and also visualizes with a cube, connect and disconnect is implemented. Essentially rebuild the functionality of the old version with added linux support.

2026-09-13 19:44:26 +02:00
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+// Dear ImGui: standalone example application for Raylib with OpenGL
+// (Raylib is a simple learning library for game development)
+
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#include "imgui.h"
+#include "imgui_impl_raylib.h"
+#include "raylib.h"
+
+#include <cstdint>
+
+// DPI scaling functions
+// Use these to scale any hardcoded values to the native display resolution
+float ScaleToDPIF(float value)
+{
+    return GetWindowScaleDPI().x * value;
+}
+
+int ScaleToDPII(int value)
+{
+    return int(GetWindowScaleDPI().x * value);
+}
+
+// Main code
+int main(int, char**)
+{
+    // Setup raylib window
+    // do not set the FLAG_WINDOW_HIGHDPI flag, that scales a low res framebuffer up to the native resolution.
+    // use the native resolution and scale your geometry.
+
+    SetConfigFlags(FLAG_WINDOW_RESIZABLE);
+    InitWindow(1280, 720, "Dear ImGui Raylib(OpenGL) example");
+ 
+    // Setup Dear ImGui context
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
+
+    // tell ImGui the display scale
+    if (!IsWindowState(FLAG_WINDOW_HIGHDPI))
+    {
+        io.DisplayFramebufferScale.x = GetWindowScaleDPI().x;
+        io.DisplayFramebufferScale.y = GetWindowScaleDPI().y;
+    }
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+    //ImGui::StyleColorsLight();
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplRaylib_Init();
+
+    // Load Fonts
+    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
+    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+
+    // to properly scale for high DPI displays, we need to cale the font size by the dpi sale
+    static constexpr int DefaultFonSize = 13;
+    ImFontConfig defaultConfig;
+    defaultConfig.SizePixels = DefaultFonSize;
+
+    if (!IsWindowState(FLAG_WINDOW_HIGHDPI))
+    {
+        defaultConfig.SizePixels = defaultConfig.SizePixels * GetWindowScaleDPI().y;
+        defaultConfig.RasterizerMultiply = GetWindowScaleDPI().y;
+    }
+
+    defaultConfig.PixelSnapH = true;
+    io.Fonts->AddFontDefault(&defaultConfig);
+
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+   //  ImFont* font = io.Fonts->AddFontFromFileTTF("resources/driusstraight.ttf", ScaleToDPIF(18.0f), nullptr, io.Fonts->GetGlyphRangesJapanese());
+    // IM_ASSERT(font != nullptr);
+   
+    // Our state
+    bool show_demo_window = true;
+    bool show_another_window = false;
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    // Main loop
+    bool done = false;
+    while (!done)
+    {
+        // Poll and handle events (inputs, window resize, etc.)
+        // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+        // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+        // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+        // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+        ImGui_ImplRaylib_ProcessEvents();
+
+        // Start the Dear ImGui frame
+        ImGui_ImplRaylib_NewFrame();
+        ImGui::NewFrame();
+
+        // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
+        if (show_demo_window)
+            ImGui::ShowDemoWindow(&show_demo_window);
+
+        // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
+        {
+            static float f = 0.0f;
+            static int counter = 0;
+
+            ImGui::Begin("Hello, world!");                          // Create a window called "Hello, world!" and append into it.
+
+            ImGui::Text("This is some useful text.");               // Display some text (you can use a format strings too)
+            ImGui::Checkbox("Demo Window", &show_demo_window);      // Edit bools storing our window open/close state
+            ImGui::Checkbox("Another Window", &show_another_window);
+
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float using a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", &clear_color.x); // Edit 3 floats representing a color
+
+            if (ImGui::Button("Button"))                            // Buttons return true when clicked (most widgets return true when edited/activated)
+                counter++;
+            ImGui::SameLine();
+            ImGui::Text("counter = %d", counter);
+
+            ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+            ImGui::End();
+        }
+
+        // 3. Show another simple window.
+        if (show_another_window)
+        {
+            ImGui::Begin("Another Window", &show_another_window);   // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
+            ImGui::Text("Hello from another window!");
+            if (ImGui::Button("Close Me"))
+                show_another_window = false;
+            ImGui::End();
+        }
+
+        // Rendering
+        ImGui::Render();
+        BeginDrawing();
+        ClearBackground(Color{ uint8_t(clear_color.x * 255), uint8_t(clear_color.y * 255), uint8_t(clear_color.z * 255), uint8_t(clear_color.w * 255) });
+        ImGui_ImplRaylib_RenderDrawData(ImGui::GetDrawData());
+        EndDrawing();
+
+        done = WindowShouldClose();
+    }
+    // Cleanup
+    ImGui_ImplRaylib_Shutdown();
+    ImGui::DestroyContext();
+
+    CloseWindow();
+
+    return 0;
+}