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bbdab305aadf2674917864ddf65f5ac94fbd848e
baudmine/src/ui/Application.cpp

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#include "ui/Application.h"
#include <imgui.h>
#include <imgui_impl_sdl2.h>
#include <imgui_impl_opengl3.h>
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#include <emscripten/html5.h>
#include <GLES2/gl2.h>
EM_JS(void, js_toggleFullscreen, (), {
if (document.fullscreenElement) {
document.exitFullscreen();
} else {
document.documentElement.requestFullscreen();
}
});
EM_JS(int, js_isFullscreen, (), {
return document.fullscreenElement ? 1 : 0;
});
EM_JS(float, js_devicePixelRatio, (), {
return window.devicePixelRatio || 1.0;
});
EM_JS(void, js_clearCanvasInlineSize, (), {
var c = document.getElementById('canvas');
if (c) { c.style.width = ''; c.style.height = ''; }
});
#elif defined(_WIN32)
#define WIN32_LEAN_AND_MEAN
#define NOMINMAX
#include <windows.h>
#include <GL/gl.h>
#else
#include <GL/gl.h>
#endif
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
namespace baudmine {
Application::Application() = default;
// ── UI scaling ──────────────────────────────────────────────────────────────
void Application::syncCanvasSize() {
#ifdef __EMSCRIPTEN__
double cssW, cssH;
emscripten_get_element_css_size("#canvas", &cssW, &cssH);
float dpr = js_devicePixelRatio();
int targetW = static_cast<int>(cssW * dpr + 0.5);
int targetH = static_cast<int>(cssH * dpr + 0.5);
int curW, curH;
emscripten_get_canvas_element_size("#canvas", &curW, &curH);
if (curW != targetW || curH != targetH) {
emscripten_set_canvas_element_size("#canvas", targetW, targetH);
glViewport(0, 0, targetW, targetH);
}
if (std::abs(dpr - lastDpr_) > 0.01f) {
lastDpr_ = dpr;
float scale = (uiScale_ > 0.0f) ? uiScale_ : dpr;
applyUIScale(scale);
}
#endif
}
void Application::applyUIScale(float scale) {
scale = std::clamp(scale, 0.5f, 4.0f);
if (std::abs(scale - appliedScale_) < 0.01f) return;
appliedScale_ = scale;
static ImGuiStyle baseStyle = [] {
ImGuiStyle s;
ImGui::StyleColorsDark(&s);
s.WindowRounding = 4.0f;
s.FrameRounding = 2.0f;
s.GrabRounding = 2.0f;
return s;
}();
float fbScale = 1.0f;
int winW, winH, drawW, drawH;
SDL_GetWindowSize(window_, &winW, &winH);
SDL_GL_GetDrawableSize(window_, &drawW, &drawH);
if (winW > 0) fbScale = static_cast<float>(drawW) / winW;
logicalScale_ = scale / fbScale;
ImGuiIO& io = ImGui::GetIO();
io.Fonts->Clear();
ImFontConfig fc;
fc.SizePixels = std::max(8.0f, 13.0f * scale);
io.Fonts->AddFontDefault(&fc);
io.Fonts->Build();
ImGui_ImplOpenGL3_DestroyFontsTexture();
io.FontGlobalScale = 1.0f / fbScale;
ImGui::GetStyle() = baseStyle;
ImGui::GetStyle().ScaleAllSizes(logicalScale_);
}
void Application::requestUIScale(float scale) {
pendingScale_ = scale;
}
float Application::systemDpiScale() const {
#ifdef __EMSCRIPTEN__
return js_devicePixelRatio();
#else
float ddpi = 0;
if (SDL_GetDisplayDPI(0, &ddpi, nullptr, nullptr) == 0 && ddpi > 0)
return ddpi / 96.0f;
return 1.0f;
#endif
}
// ── Lifecycle ───────────────────────────────────────────────────────────────
Application::~Application() {
shutdown();
}
bool Application::init(int argc, char** argv) {
// Parse command line
for (int i = 1; i < argc; ++i) {
std::string arg = argv[i];
if (arg == "--format" && i + 1 < argc) {
std::string fmt = argv[++i];
if (fmt == "f32") controlPanel_.fileFormatIdx = 0;
if (fmt == "i16") controlPanel_.fileFormatIdx = 1;
if (fmt == "u8") controlPanel_.fileFormatIdx = 2;
if (fmt == "wav") controlPanel_.fileFormatIdx = 3;
} else if (arg == "--rate" && i + 1 < argc) {
controlPanel_.fileSampleRate = std::stof(argv[++i]);
} else if (arg == "--iq") {
audio_.settings().isIQ = true;
} else if (arg[0] != '-') {
controlPanel_.filePath = arg;
}
}
// SDL init
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) {
std::fprintf(stderr, "SDL_Init error: %s\n", SDL_GetError());
return false;
}
#ifdef __EMSCRIPTEN__
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
#else
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
#endif
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
window_ = SDL_CreateWindow("Baudmine Spectrum Analyzer",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
kDefaultWindowWidth, kDefaultWindowHeight,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE |
SDL_WINDOW_ALLOW_HIGHDPI);
if (!window_) {
std::fprintf(stderr, "SDL_CreateWindow error: %s\n", SDL_GetError());
return false;
}
#ifdef __EMSCRIPTEN__
js_clearCanvasInlineSize();
#endif
glContext_ = SDL_GL_CreateContext(window_);
SDL_GL_MakeCurrent(window_, glContext_);
SDL_GL_SetSwapInterval(1);
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGui::GetIO().ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
ImGui::StyleColorsDark();
ImGuiStyle& style = ImGui::GetStyle();
style.WindowRounding = 4.0f;
style.FrameRounding = 2.0f;
style.GrabRounding = 2.0f;
ImGui_ImplSDL2_InitForOpenGL(window_, glContext_);
#ifdef __EMSCRIPTEN__
ImGui_ImplOpenGL3_Init("#version 100");
#else
ImGui_ImplOpenGL3_Init("#version 120");
#endif
audio_.enumerateDevices();
loadConfig();
syncCanvasSize();
// DPI-aware UI scaling
{
float dpiScale = systemDpiScale();
#ifdef __EMSCRIPTEN__
lastDpr_ = dpiScale;
#endif
applyUIScale((uiScale_ > 0.0f) ? uiScale_ : dpiScale);
}
// Apply loaded settings
auto& settings = audio_.settings();
settings.fftSize = ControlPanel::kFFTSizes[controlPanel_.fftSizeIdx];
settings.overlap = controlPanel_.overlapPct / 100.0f;
settings.window = static_cast<WindowType>(controlPanel_.windowIdx);
settings.sampleRate = controlPanel_.fileSampleRate;
settings.isIQ = false;
if (!controlPanel_.filePath.empty()) {
InputFormat fmt;
switch (controlPanel_.fileFormatIdx) {
case 0: fmt = InputFormat::Float32IQ; settings.isIQ = true; break;
case 1: fmt = InputFormat::Int16IQ; settings.isIQ = true; break;
case 2: fmt = InputFormat::Uint8IQ; settings.isIQ = true; break;
default: fmt = InputFormat::WAV; break;
}
openFile(controlPanel_.filePath, fmt, controlPanel_.fileSampleRate);
} else {
openDevice();
}
updateAnalyzerSettings();
running_ = true;
return true;
}
void Application::shutdown() {
if (!window_) return; // already shut down
audio_.closeAll();
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();
if (glContext_) { SDL_GL_DeleteContext(glContext_); glContext_ = nullptr; }
SDL_DestroyWindow(window_);
window_ = nullptr;
SDL_Quit();
}
#ifdef __EMSCRIPTEN__
static void emMainLoop(void* arg) {
static_cast<Application*>(arg)->mainLoopStep();
}
#endif
void Application::run() {
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(emMainLoop, this, 0, true);
#else
while (running_) mainLoopStep();
#endif
}
void Application::mainLoopStep() {
syncCanvasSize();
if (pendingScale_ > 0.0f) {
applyUIScale(pendingScale_);
pendingScale_ = 0.0f;
}
const auto& settings = audio_.settings();
SDL_Event event;
while (SDL_PollEvent(&event)) {
ImGui_ImplSDL2_ProcessEvent(&event);
displayPanel_.handleTouch(event, ui_, window_);
if (event.type == SDL_QUIT)
running_ = false;
if (event.type == SDL_KEYDOWN) {
auto key = event.key.keysym.sym;
#ifndef __EMSCRIPTEN__
if (key == SDLK_ESCAPE) running_ = false;
#endif
if (key == SDLK_SPACE) ui_.paused = !ui_.paused;
if (key == SDLK_p) {
int pkCh = std::clamp(ui_.waterfallChannel, 0,
audio_.totalNumSpectra() - 1);
cursors_.snapToPeak(audio_.getSpectrum(pkCh),
settings.sampleRate, settings.isIQ,
settings.fftSize);
}
}
}
if (!ui_.paused)
processAudio();
render();
}
// ── Audio processing ────────────────────────────────────────────────────────
void Application::processAudio() {
if (!audio_.hasSource()) return;
const auto& settings = audio_.settings();
int spectraThisFrame = audio_.processAudio();
if (spectraThisFrame > 0) {
audio_.computeMathChannels();
int nSpec = audio_.totalNumSpectra();
const auto& mathChannels = audio_.mathChannels();
const auto& mathSpectra = audio_.mathSpectra();
// Push ALL new spectra to the waterfall so that the scroll rate
// is determined by the audio sample rate, not the display refresh.
if (ui_.waterfallMultiCh && nSpec > 1) {
// For multi-channel: replay the last spectraThisFrame entries
// from channel 0's history to get per-step data. Other
// channels have the same count of new entries.
const auto& hist0 = audio_.getWaterfallHistory(0);
int histSz = static_cast<int>(hist0.size());
int start = std::max(0, histSz - spectraThisFrame);
for (int si = start; si < histSz; ++si) {
std::vector<std::vector<float>> wfSpectra;
std::vector<WaterfallChannelInfo> wfInfo;
for (int ch = 0; ch < nSpec; ++ch) {
const auto& c = ui_.channelColors[ch % kMaxChannels];
const auto& hist = audio_.getWaterfallHistory(ch);
int idx = std::max(0, static_cast<int>(hist.size()) - (histSz - si));
wfSpectra.push_back(hist[idx]);
wfInfo.push_back({c.x, c.y, c.z,
ui_.channelEnabled[ch % kMaxChannels]});
}
// Math channels: use their own waterfall history.
for (size_t mi = 0; mi < mathChannels.size(); ++mi) {
if (mathChannels[mi].enabled && mathChannels[mi].waterfall &&
mi < mathSpectra.size()) {
const auto& c = mathChannels[mi].color;
const auto& mHist = audio_.mathWaterfallHistory(static_cast<int>(mi));
int mHistSz = static_cast<int>(mHist.size());
int mIdx = std::max(0, mHistSz - (histSz - si));
if (mIdx < mHistSz) {
wfSpectra.push_back(mHist[mIdx]);
} else {
wfSpectra.push_back(mathSpectra[mi]);
}
wfInfo.push_back({c[0], c[1], c[2], true});
}
}
waterfall_.pushLineMulti(wfSpectra, wfInfo, ui_.minDB, ui_.maxDB);
}
} else {
int wfCh = std::clamp(ui_.waterfallChannel, 0, nSpec - 1);
const auto& hist = audio_.getWaterfallHistory(wfCh);
int histSz = static_cast<int>(hist.size());
int start = std::max(0, histSz - spectraThisFrame);
for (int si = start; si < histSz; ++si)
waterfall_.pushLine(hist[si], ui_.minDB, ui_.maxDB);
}
int curCh = std::clamp(ui_.waterfallChannel, 0, nSpec - 1);
cursors_.update(audio_.getSpectrum(curCh),
settings.sampleRate, settings.isIQ, settings.fftSize);
measurements_.update(audio_.getSpectrum(curCh),
settings.sampleRate, settings.isIQ, settings.fftSize);
}
if (audio_.source()->isEOF() && !audio_.source()->isRealTime())
ui_.paused = true;
}
// ── Rendering ───────────────────────────────────────────────────────────────
void Application::render() {
if (SDL_GetWindowFlags(window_) & SDL_WINDOW_MINIMIZED) {
SDL_Delay(16);
return;
}
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
displayPanel_.hoverPanel = DisplayPanel::HoverPanel::None;
const auto& settings = audio_.settings();
ImGuiViewport* viewport = ImGui::GetMainViewport();
ImGui::SetNextWindowPos(viewport->WorkPos);
ImGui::SetNextWindowSize(viewport->WorkSize);
ImGui::Begin("##Main", nullptr,
ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse |
ImGuiWindowFlags_NoBringToFrontOnFocus |
ImGuiWindowFlags_MenuBar);
// ── Menu bar ──
if (ImGui::BeginMenuBar()) {
if (ImGui::Button(showSidebar_ ? " << " : " >> ")) {
showSidebar_ = !showSidebar_;
saveConfig();
}
if (ImGui::IsItemHovered())
ImGui::SetTooltip(showSidebar_ ? "Hide sidebar" : "Show sidebar");
ImGui::Separator();
if (ImGui::BeginMenu("File")) {
static char filePathBuf[512] = "";
if (controlPanel_.filePath.size() < sizeof(filePathBuf))
std::strncpy(filePathBuf, controlPanel_.filePath.c_str(), sizeof(filePathBuf) - 1);
ImGui::SetNextItemWidth(200);
if (ImGui::InputText("Path", filePathBuf, sizeof(filePathBuf)))
controlPanel_.filePath = filePathBuf;
const char* formatNames[] = {"Float32 I/Q", "Int16 I/Q", "Uint8 I/Q", "WAV"};
ImGui::SetNextItemWidth(140);
ImGui::Combo("Format", &controlPanel_.fileFormatIdx, formatNames, 4);
ImGui::SetNextItemWidth(140);
ImGui::DragFloat("Sample Rate", &controlPanel_.fileSampleRate, 1000.0f, 1000.0f, 100e6f, "%.0f Hz");
ImGui::Checkbox("Loop", &controlPanel_.fileLoop);
if (ImGui::MenuItem("Open File")) {
InputFormat fmt;
switch (controlPanel_.fileFormatIdx) {
case 0: fmt = InputFormat::Float32IQ; break;
case 1: fmt = InputFormat::Int16IQ; break;
case 2: fmt = InputFormat::Uint8IQ; break;
default: fmt = InputFormat::WAV; break;
}
openFile(controlPanel_.filePath, fmt, controlPanel_.fileSampleRate);
updateAnalyzerSettings();
}
ImGui::Separator();
const auto& devices = audio_.devices();
if (!devices.empty()) {
bool multiMode = audio_.multiDeviceMode();
if (ImGui::Checkbox("Multi-Device", &multiMode)) {
audio_.setMultiDeviceMode(multiMode);
audio_.clearDeviceSelections();
if (!multiMode) {
openDevice();
updateAnalyzerSettings();
saveConfig();
}
}
if (audio_.multiDeviceMode()) {
ImGui::Text("Select devices (each = 1 channel):");
int maxDevs = std::min(static_cast<int>(devices.size()), kMaxChannels);
bool changed = false;
for (int i = 0; i < maxDevs; ++i) {
bool sel = audio_.deviceSelected(i);
if (ImGui::Checkbox(
(devices[i].name + "##mdev" + std::to_string(i)).c_str(),
&sel)) {
audio_.setDeviceSelected(i, sel);
changed = true;
}
}
if (changed) {
openMultiDevice();
updateAnalyzerSettings();
saveConfig();
}
} else {
ImGui::Text("Audio Device");
std::vector<const char*> devNames;
for (auto& d : devices) devNames.push_back(d.name.c_str());
int devIdx = audio_.deviceIdx();
ImGui::SetNextItemWidth(250);
if (ImGui::Combo("##device", &devIdx, devNames.data(),
static_cast<int>(devNames.size()))) {
audio_.setDeviceIdx(devIdx);
openDevice();
updateAnalyzerSettings();
saveConfig();
}
}
}
if (ImGui::MenuItem("Open Audio Device")) {
if (audio_.multiDeviceMode()) openMultiDevice();
else openDevice();
updateAnalyzerSettings();
}
ImGui::Separator();
if (ImGui::MenuItem("Quit", "Esc")) running_ = false;
ImGui::EndMenu();
}
if (ImGui::BeginMenu("View")) {
ImGui::MenuItem("Grid", nullptr, &specDisplay_.showGrid);
ImGui::MenuItem("Fill Spectrum", nullptr, &specDisplay_.fillSpectrum);
ImGui::MenuItem("Additive Blend", nullptr, &specDisplay_.additiveBlend);
if (ImGui::IsItemHovered())
ImGui::SetTooltip("Mix multi-channel spectrum colors additively");
ImGui::Separator();
if (ImGui::MenuItem("VSync", nullptr, &vsync_)) {
SDL_GL_SetSwapInterval(vsync_ ? 1 : 0);
saveConfig();
}
if (ImGui::BeginMenu("UI scale")) {
static constexpr int kScales[] = {100, 150, 175, 200, 225, 250, 300};
int curPct = static_cast<int>(appliedScale_ * 100.0f + 0.5f);
if (ImGui::MenuItem("Auto", nullptr, uiScale_ == 0.0f)) {
uiScale_ = 0.0f;
requestUIScale(systemDpiScale());
saveConfig();
}
for (int s : kScales) {
char label[16];
std::snprintf(label, sizeof(label), "%d%%", s);
if (ImGui::MenuItem(label, nullptr, uiScale_ > 0.0f && std::abs(curPct - s) <= 2)) {
uiScale_ = s / 100.0f;
requestUIScale(uiScale_);
saveConfig();
}
}
ImGui::EndMenu();
}
ImGui::EndMenu();
}
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (ImGui::BeginMenu("Debug")) {
ImGui::MenuItem("Metrics/Debugger", nullptr, &showMetricsWindow_);
ImGui::MenuItem("Debug Log", nullptr, &showDebugLog_);
ImGui::MenuItem("Stack Tool", nullptr, &showStackTool_);
ImGui::MenuItem("Demo Window", nullptr, &showDemoWindow_);
ImGui::Separator();
ImGui::Text("%.1f FPS (%.3f ms)", ImGui::GetIO().Framerate,
1000.0f / ImGui::GetIO().Framerate);
ImGui::EndMenu();
}
#endif
#ifdef __EMSCRIPTEN__
if (ImGui::SmallButton(js_isFullscreen() ? "Exit Fullscreen" : "Fullscreen"))
js_toggleFullscreen();
#endif
{
float barW = ImGui::GetWindowWidth();
char statusBuf[128];
std::snprintf(statusBuf, sizeof(statusBuf), "%.0f Hz | %d pt | %.1f Hz/bin | %.0f FPS",
settings.sampleRate, settings.fftSize,
settings.sampleRate / settings.fftSize,
ImGui::GetIO().Framerate);
ImVec2 textSz = ImGui::CalcTextSize(statusBuf);
ImGui::SameLine(barW - textSz.x - 16);
ImGui::TextDisabled("%s", statusBuf);
}
ImGui::EndMenuBar();
}
// ── Layout ──
float totalW = ImGui::GetContentRegionAvail().x;
float contentH = ImGui::GetContentRegionAvail().y;
float controlW = showSidebar_ ? 270.0f * logicalScale_ : 0.0f;
float contentW = totalW - (showSidebar_ ? controlW + 8 : 0);
if (showSidebar_) {
ImGui::BeginChild("Controls", {controlW, contentH}, true);
controlPanel_.render(audio_, ui_, specDisplay_, cursors_,
measurements_, colorMap_, waterfall_);
ImGui::EndChild();
if (controlPanel_.consumeUpdateRequest())
updateAnalyzerSettings();
if (controlPanel_.consumeSaveRequest())
saveConfig();
ImGui::SameLine();
}
// ── Display area ──
ImGui::BeginChild("Display", {contentW, contentH}, false);
{
constexpr float kSplitterH = 6.0f;
displayPanel_.renderWaterfall(audio_, ui_, waterfall_, specDisplay_,
cursors_, measurements_, colorMap_);
// Draggable splitter
ImVec2 splPos = ImGui::GetCursorScreenPos();
ImGui::InvisibleButton("##splitter", {contentW, kSplitterH});
bool hovered = ImGui::IsItemHovered();
bool active = ImGui::IsItemActive();
if (hovered || active)
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS);
if (active) {
displayPanel_.spectrumFrac -= ImGui::GetIO().MouseDelta.y / contentH;
displayPanel_.spectrumFrac = std::clamp(displayPanel_.spectrumFrac, 0.1f, 0.9f);
displayPanel_.draggingSplit = true;
} else if (displayPanel_.draggingSplit) {
displayPanel_.draggingSplit = false;
saveConfig();
}
ImU32 splCol = (hovered || active)
? IM_COL32(100, 150, 255, 220)
: IM_COL32(80, 80, 100, 150);
ImDrawList* dl = ImGui::GetWindowDrawList();
float cy = splPos.y + kSplitterH * 0.5f;
dl->AddLine({splPos.x, cy}, {splPos.x + contentW, cy}, splCol, 2.0f);
displayPanel_.renderSpectrum(audio_, ui_, specDisplay_, cursors_, measurements_);
displayPanel_.renderHoverOverlay(audio_, ui_, cursors_, specDisplay_);
}
ImGui::EndChild();
ImGui::End();
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (showDemoWindow_) ImGui::ShowDemoWindow(&showDemoWindow_);
if (showMetricsWindow_) ImGui::ShowMetricsWindow(&showMetricsWindow_);
if (showDebugLog_) ImGui::ShowDebugLogWindow(&showDebugLog_);
if (showStackTool_) ImGui::ShowIDStackToolWindow(&showStackTool_);
#endif
ImGui::Render();
int displayW, displayH;
SDL_GL_GetDrawableSize(window_, &displayW, &displayH);
glViewport(0, 0, displayW, displayH);
glClearColor(0.08f, 0.08f, 0.10f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
SDL_GL_SwapWindow(window_);
}
// ── Source management ───────────────────────────────────────────────────────
void Application::openDevice() {
audio_.openDevice(audio_.deviceIdx());
controlPanel_.fileSampleRate = static_cast<float>(audio_.settings().sampleRate);
}
void Application::openMultiDevice() {
bool selected[kMaxChannels] = {};
const auto& devices = audio_.devices();
int maxDevs = std::min(static_cast<int>(devices.size()), kMaxChannels);
for (int i = 0; i < maxDevs; ++i)
selected[i] = audio_.deviceSelected(i);
audio_.openMultiDevice(selected, maxDevs);
}
void Application::openFile(const std::string& path, InputFormat format, double sampleRate) {
audio_.openFile(path, format, sampleRate, controlPanel_.fileLoop);
controlPanel_.fileSampleRate = static_cast<float>(audio_.settings().sampleRate);
}
void Application::updateAnalyzerSettings() {
auto& settings = audio_.settings();
int oldFFTSize = settings.fftSize;
bool oldIQ = settings.isIQ;
int oldNCh = settings.numChannels;
settings.fftSize = ControlPanel::kFFTSizes[controlPanel_.fftSizeIdx];
settings.overlap = controlPanel_.overlapPct / 100.0f;
settings.window = static_cast<WindowType>(controlPanel_.windowIdx);
audio_.configure(settings);
bool sizeChanged = settings.fftSize != oldFFTSize ||
settings.isIQ != oldIQ ||
settings.numChannels != oldNCh;
if (sizeChanged) {
audio_.drainSources();
cursors_.cursorA.active = false;
cursors_.cursorB.active = false;
int reinitH = std::max(1024, waterfall_.height());
int binCount = std::max(1, audio_.spectrumSize());
waterfall_.init(binCount, reinitH);
}
}
// ── Config persistence ──────────────────────────────────────────────────────
void Application::loadConfig() {
config_.load();
controlPanel_.fftSizeIdx = config_.getInt("fft_size_idx", controlPanel_.fftSizeIdx);
controlPanel_.overlapPct = config_.getFloat("overlap_pct", controlPanel_.overlapPct);
controlPanel_.windowIdx = config_.getInt("window_idx", controlPanel_.windowIdx);
controlPanel_.colorMapIdx = config_.getInt("colormap_idx", controlPanel_.colorMapIdx);
ui_.minDB = config_.getFloat("min_db", ui_.minDB);
ui_.maxDB = config_.getFloat("max_db", ui_.maxDB);
int fs = config_.getInt("freq_scale", static_cast<int>(ui_.freqScale));
ui_.freqScale = static_cast<FreqScale>(fs);
vsync_ = config_.getBool("vsync", vsync_);
uiScale_ = config_.getFloat("ui_scale", uiScale_);
displayPanel_.spectrumFrac = config_.getFloat("spectrum_frac", displayPanel_.spectrumFrac);
showSidebar_ = config_.getBool("show_sidebar", showSidebar_);
specDisplay_.peakHoldEnable = config_.getBool("peak_hold", specDisplay_.peakHoldEnable);
specDisplay_.peakHoldDecay = config_.getFloat("peak_hold_decay", specDisplay_.peakHoldDecay);
specDisplay_.additiveBlend = config_.getBool("additive_blend", specDisplay_.additiveBlend);
cursors_.snapToPeaks = config_.getBool("snap_to_peaks", cursors_.snapToPeaks);
measurements_.traceMinFreq = config_.getFloat("trace_min_freq", measurements_.traceMinFreq);
measurements_.traceMaxFreq = config_.getFloat("trace_max_freq", measurements_.traceMaxFreq);
ui_.specMinPixPerBin = config_.getInt("spec_min_pix_per_bin", ui_.specMinPixPerBin);
// Clamp
controlPanel_.fftSizeIdx = std::clamp(controlPanel_.fftSizeIdx, 0, ControlPanel::kNumFFTSizes - 1);
controlPanel_.windowIdx = std::clamp(controlPanel_.windowIdx, 0, static_cast<int>(WindowType::Count) - 1);
controlPanel_.colorMapIdx = std::clamp(controlPanel_.colorMapIdx, 0, static_cast<int>(ColorMapType::Count) - 1);
displayPanel_.spectrumFrac = std::clamp(displayPanel_.spectrumFrac, 0.1f, 0.9f);
// Restore device selection
const auto& devices = audio_.devices();
audio_.setMultiDeviceMode(config_.getBool("multi_device", false));
std::string devName = config_.getString("device_name", "");
if (!devName.empty()) {
for (int i = 0; i < static_cast<int>(devices.size()); ++i) {
if (devices[i].name == devName) {
audio_.setDeviceIdx(i);
break;
}
}
}
audio_.clearDeviceSelections();
std::string multiNames = config_.getString("multi_device_names", "");
if (!multiNames.empty()) {
size_t pos = 0;
while (pos < multiNames.size()) {
size_t comma = multiNames.find(',', pos);
if (comma == std::string::npos) comma = multiNames.size();
std::string name = multiNames.substr(pos, comma - pos);
for (int i = 0; i < std::min(static_cast<int>(devices.size()), kMaxChannels); ++i) {
if (devices[i].name == name)
audio_.setDeviceSelected(i, true);
}
pos = comma + 1;
}
}
auto& settings = audio_.settings();
settings.fftSize = ControlPanel::kFFTSizes[controlPanel_.fftSizeIdx];
settings.overlap = controlPanel_.overlapPct / 100.0f;
settings.window = static_cast<WindowType>(controlPanel_.windowIdx);
colorMap_.setType(static_cast<ColorMapType>(controlPanel_.colorMapIdx));
SDL_GL_SetSwapInterval(vsync_ ? 1 : 0);
}
void Application::saveConfig() const {
const auto& devices = audio_.devices();
Config cfg;
cfg.setInt("fft_size_idx", controlPanel_.fftSizeIdx);
cfg.setFloat("overlap_pct", controlPanel_.overlapPct);
cfg.setInt("window_idx", controlPanel_.windowIdx);
cfg.setInt("colormap_idx", controlPanel_.colorMapIdx);
cfg.setFloat("min_db", ui_.minDB);
cfg.setFloat("max_db", ui_.maxDB);
cfg.setInt("freq_scale", static_cast<int>(ui_.freqScale));
cfg.setBool("vsync", vsync_);
cfg.setFloat("ui_scale", uiScale_);
cfg.setFloat("spectrum_frac", displayPanel_.spectrumFrac);
cfg.setBool("show_sidebar", showSidebar_);
cfg.setBool("peak_hold", specDisplay_.peakHoldEnable);
cfg.setFloat("peak_hold_decay", specDisplay_.peakHoldDecay);
cfg.setBool("additive_blend", specDisplay_.additiveBlend);
cfg.setBool("snap_to_peaks", cursors_.snapToPeaks);
cfg.setFloat("trace_min_freq", measurements_.traceMinFreq);
cfg.setFloat("trace_max_freq", measurements_.traceMaxFreq);
cfg.setInt("spec_min_pix_per_bin", ui_.specMinPixPerBin);
int devIdx = audio_.deviceIdx();
if (devIdx >= 0 && devIdx < static_cast<int>(devices.size()))
cfg.setString("device_name", devices[devIdx].name);
cfg.setBool("multi_device", audio_.multiDeviceMode());
std::string multiNames;
for (int i = 0; i < std::min(static_cast<int>(devices.size()), kMaxChannels); ++i) {
if (audio_.deviceSelected(i)) {
if (!multiNames.empty()) multiNames += ',';
multiNames += devices[i].name;
}
}
cfg.setString("multi_device_names", multiNames);
cfg.save();
}
} // namespace baudmine
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