wasm: disable ImGUI debug tools

CMakeLists.txt

@@ -20,15 +20,18 @@ FetchContent_Declare(
 )
 FetchContent_MakeAvailable(imgui)
 
-add_library(imgui STATIC
+set(IMGUI_SOURCES
     ${imgui_SOURCE_DIR}/imgui.cpp
-    ${imgui_SOURCE_DIR}/imgui_demo.cpp
     ${imgui_SOURCE_DIR}/imgui_draw.cpp
     ${imgui_SOURCE_DIR}/imgui_tables.cpp
     ${imgui_SOURCE_DIR}/imgui_widgets.cpp
     ${imgui_SOURCE_DIR}/backends/imgui_impl_sdl2.cpp
     ${imgui_SOURCE_DIR}/backends/imgui_impl_opengl3.cpp
 )
+if(NOT EMSCRIPTEN)
+    list(APPEND IMGUI_SOURCES ${imgui_SOURCE_DIR}/imgui_demo.cpp)
+endif()
+add_library(imgui STATIC ${IMGUI_SOURCES})
 target_include_directories(imgui PUBLIC
     ${imgui_SOURCE_DIR}
     ${imgui_SOURCE_DIR}/backends
@@ -141,9 +144,10 @@ if(EMSCRIPTEN)
     target_compile_definitions(fftw3f_wasm PRIVATE FFTW_SINGLE=1)
     target_compile_options(fftw3f_wasm PRIVATE -w)  # suppress warnings from FFTW
 
-    # ImGui: link with Emscripten SDL2 port
+    # ImGui: link with Emscripten SDL2 port, disable demo/debug tools
     target_compile_options(imgui PUBLIC -sUSE_SDL=2)
     target_link_options(imgui PUBLIC -sUSE_SDL=2)
+    target_compile_definitions(imgui PUBLIC IMGUI_DISABLE_DEMO_WINDOWS=1 IMGUI_DISABLE_DEBUG_TOOLS=1)
 
     add_executable(baudmine ${SOURCES})
     target_include_directories(baudmine PRIVATE src)

src/ui/Application.cpp

@@ -447,6 +447,7 @@ void Application::render() {
             ImGui::EndMenu();
         }
 
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
         if (ImGui::BeginMenu("Debug")) {
             ImGui::MenuItem("Metrics/Debugger", nullptr, &showMetricsWindow_);
             ImGui::MenuItem("Debug Log", nullptr, &showDebugLog_);
@@ -457,6 +458,7 @@ void Application::render() {
                         1000.0f / ImGui::GetIO().Framerate);
             ImGui::EndMenu();
         }
+#endif
 
 #ifdef __EMSCRIPTEN__
         if (ImGui::SmallButton(js_isFullscreen() ? "Exit Fullscreen" : "Fullscreen")) {
@@ -584,11 +586,13 @@ void Application::render() {
 
     ImGui::End();
 
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
     // ImGui debug windows
     if (showDemoWindow_)    ImGui::ShowDemoWindow(&showDemoWindow_);
     if (showMetricsWindow_) ImGui::ShowMetricsWindow(&showMetricsWindow_);
     if (showDebugLog_)      ImGui::ShowDebugLogWindow(&showDebugLog_);
     if (showStackTool_)     ImGui::ShowIDStackToolWindow(&showStackTool_);
+#endif
 
     // Render
     ImGui::Render();

src/ui/Application.h

@@ -205,11 +205,13 @@ private:
     // UI visibility
     bool showSidebar_       = true;
 
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
     // ImGui debug windows
     bool showDemoWindow_    = false;
     bool showMetricsWindow_ = false;
     bool showDebugLog_      = false;
     bool showStackTool_     = false;
+#endif
 
     // Pre-allocated scratch buffers (avoid per-frame heap allocations)
     std::vector<std::vector<float>>  wfSpectraScratch_;