diff --git a/CMakeLists.txt b/CMakeLists.txt index afc9689e2..ee89bb602 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -937,6 +937,7 @@ src/gui/sysEx.cpp src/gui/sysManager.cpp src/gui/sysMiscInfo.cpp src/gui/sysPicker.cpp +src/gui/tuner.cpp src/gui/tutorial.cpp src/gui/userPresets.cpp src/gui/util.cpp diff --git a/out/install/x64-Debug/bin/furnace.exe b/out/install/x64-Debug/bin/furnace.exe new file mode 100644 index 000000000..495c41790 Binary files /dev/null and b/out/install/x64-Debug/bin/furnace.exe differ diff --git a/src/gui/doAction.cpp b/src/gui/doAction.cpp index 4d8daed18..d2fdda595 100644 --- a/src/gui/doAction.cpp +++ b/src/gui/doAction.cpp @@ -315,6 +315,9 @@ void FurnaceGUI::doAction(int what) { case GUI_ACTION_WINDOW_NOTES: nextWindow=GUI_WINDOW_NOTES; break; + case GUI_ACTION_WINDOW_TUNER: + nextWindow = GUI_WINDOW_TUNER; + break; case GUI_ACTION_WINDOW_CHANNELS: nextWindow=GUI_WINDOW_CHANNELS; break; @@ -423,6 +426,9 @@ void FurnaceGUI::doAction(int what) { case GUI_WINDOW_NOTES: notesOpen=false; break; + case GUI_WINDOW_TUNER: + notesOpen = false; + break; case GUI_WINDOW_CHANNELS: channelsOpen=false; break; diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp index 8c3929022..2ad3bae8e 100644 --- a/src/gui/gui.cpp +++ b/src/gui/gui.cpp @@ -1004,6 +1004,11 @@ Pos=60,60\n\ Size=395,171\n\ Collapsed=0\n\ \n\ +[Window][Tuner]\n\ +Pos=60,60\n\ +Size=395,171\n\ +Collapsed=0\n\ +\n\ [Window][Warning##Export AudioFileDialogOverWriteDialog]\n\ Pos=381,351\n\ Size=500,71\n\ @@ -3748,6 +3753,7 @@ bool FurnaceGUI::loop() { DECLARE_METRIC(compatFlags) DECLARE_METRIC(piano) DECLARE_METRIC(notes) + DECLARE_METRIC(tuner) DECLARE_METRIC(channels) DECLARE_METRIC(patManager) DECLARE_METRIC(sysManager) @@ -4339,6 +4345,7 @@ bool FurnaceGUI::loop() { IMPORT_CLOSE(compatFlagsOpen); IMPORT_CLOSE(pianoOpen); IMPORT_CLOSE(notesOpen); + IMPORT_CLOSE(tunerOpen); IMPORT_CLOSE(channelsOpen); IMPORT_CLOSE(regViewOpen); IMPORT_CLOSE(logOpen); @@ -4704,6 +4711,7 @@ bool FurnaceGUI::loop() { if (ImGui::MenuItem(_("oscilloscope (per-channel)"),BIND_FOR(GUI_ACTION_WINDOW_CHAN_OSC),chanOscOpen)) chanOscOpen=!chanOscOpen; if (ImGui::MenuItem(_("oscilloscope (X-Y)"),BIND_FOR(GUI_ACTION_WINDOW_XY_OSC),xyOscOpen)) xyOscOpen=!xyOscOpen; if (ImGui::MenuItem(_("volume meter"),BIND_FOR(GUI_ACTION_WINDOW_VOL_METER),volMeterOpen)) volMeterOpen=!volMeterOpen; + if (ImGui::MenuItem(_("tuner"), BIND_FOR(GUI_ACTION_WINDOW_TUNER), tunerOpen)) tunerOpen = !tunerOpen; ImGui::EndMenu(); } if (ImGui::BeginMenu(_("tempo"))) { @@ -4978,6 +4986,7 @@ bool FurnaceGUI::loop() { MEASURE(compatFlags,drawCompatFlags()); MEASURE(piano,drawPiano()); MEASURE(notes,drawNotes()); + MEASURE(tuner,drawTuner()); MEASURE(channels,drawChannels()); MEASURE(patManager,drawPatManager()); MEASURE(sysManager,drawSysManager()); @@ -8066,6 +8075,7 @@ void FurnaceGUI::syncState() { pianoOpen=e->getConfBool("pianoOpen",false); #endif notesOpen=e->getConfBool("notesOpen",false); + tunerOpen=e->getConfBool("tunerOpen",false); channelsOpen=e->getConfBool("channelsOpen",false); patManagerOpen=e->getConfBool("patManagerOpen",false); sysManagerOpen=e->getConfBool("sysManagerOpen",false); @@ -8224,6 +8234,7 @@ void FurnaceGUI::commitState(DivConfig& conf) { conf.set("compatFlagsOpen",compatFlagsOpen); conf.set("pianoOpen",pianoOpen); conf.set("notesOpen",notesOpen); + conf.set("tunerOpen",tunerOpen); conf.set("channelsOpen",channelsOpen); conf.set("patManagerOpen",patManagerOpen); conf.set("sysManagerOpen",sysManagerOpen); @@ -8618,6 +8629,7 @@ FurnaceGUI::FurnaceGUI(): compatFlagsOpen(false), pianoOpen(false), notesOpen(false), + tunerOpen(false), channelsOpen(false), regViewOpen(false), logOpen(false), diff --git a/src/gui/gui.h b/src/gui/gui.h index cdea368d9..b43ef5849 100644 --- a/src/gui/gui.h +++ b/src/gui/gui.h @@ -548,6 +548,7 @@ enum FurnaceGUIWindows { GUI_WINDOW_COMPAT_FLAGS, GUI_WINDOW_PIANO, GUI_WINDOW_NOTES, + GUI_WINDOW_TUNER, GUI_WINDOW_CHANNELS, GUI_WINDOW_PAT_MANAGER, GUI_WINDOW_SYS_MANAGER, @@ -752,6 +753,7 @@ enum FurnaceGUIActions { GUI_ACTION_WINDOW_COMPAT_FLAGS, GUI_ACTION_WINDOW_PIANO, GUI_ACTION_WINDOW_NOTES, + GUI_ACTION_WINDOW_TUNER, GUI_ACTION_WINDOW_CHANNELS, GUI_ACTION_WINDOW_PAT_MANAGER, GUI_ACTION_WINDOW_SYS_MANAGER, @@ -2366,7 +2368,7 @@ class FurnaceGUI { bool editControlsOpen, ordersOpen, insListOpen, songInfoOpen, patternOpen, insEditOpen; bool waveListOpen, waveEditOpen, sampleListOpen, sampleEditOpen, aboutOpen, settingsOpen; bool mixerOpen, debugOpen, inspectorOpen, oscOpen, volMeterOpen, statsOpen, compatFlagsOpen; - bool pianoOpen, notesOpen, channelsOpen, regViewOpen, logOpen, effectListOpen, chanOscOpen; + bool pianoOpen, notesOpen, tunerOpen, channelsOpen, regViewOpen, logOpen, effectListOpen, chanOscOpen; bool subSongsOpen, findOpen, spoilerOpen, patManagerOpen, sysManagerOpen, clockOpen, speedOpen; bool groovesOpen, xyOscOpen, memoryOpen, csPlayerOpen, cvOpen, userPresetsOpen; @@ -2938,6 +2940,7 @@ class FurnaceGUI { void drawCompatFlags(); void drawPiano(); void drawNotes(bool asChild=false); + void drawTuner(); void drawChannels(); void drawPatManager(); void drawSysManager(); diff --git a/src/gui/guiConst.cpp b/src/gui/guiConst.cpp index 6e49d2473..be0afa379 100644 --- a/src/gui/guiConst.cpp +++ b/src/gui/guiConst.cpp @@ -640,6 +640,7 @@ const FurnaceGUIActionDef guiActions[GUI_ACTION_MAX]={ D("WINDOW_COMPAT_FLAGS", _N("Compatibility Flags"), 0), D("WINDOW_PIANO", _N("Piano"), 0), D("WINDOW_NOTES", _N("Song Comments"), 0), + D("WINDOW_TUNER", _N("Tuner"), 0), D("WINDOW_CHANNELS", _N("Channels"), 0), D("WINDOW_PAT_MANAGER", _N("Pattern Manager"), 0), D("WINDOW_SYS_MANAGER", _N("Chip Manager"), 0), diff --git a/src/gui/tuner.cpp b/src/gui/tuner.cpp new file mode 100644 index 000000000..e090afc5b --- /dev/null +++ b/src/gui/tuner.cpp @@ -0,0 +1,130 @@ +/** + * Furnace Tracker - multi-system chiptune tracker + * Copyright (C) 2021-2025 tildearrow and contributors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#define _USE_MATH_DEFINES +#include "gui.h" +#include "../ta-log.h" +#include "imgui.h" +#include "imgui_internal.h" +#include "misc/cpp/imgui_stdlib.h" + +#define FURNACE_FFT_SIZE 16384//4096 +#define FURNACE_FFT_RATE 80.0 +#define FURNACE_FFT_CUTOFF 0.1 + +void FurnaceGUI::drawTuner() { + if (nextWindow == GUI_WINDOW_TUNER) { + tunerOpen = true; + ImGui::SetNextWindowFocus(); + nextWindow = GUI_WINDOW_NOTHING; + } + if (!tunerOpen) return; + if (ImGui::Begin("Tuner", &tunerOpen, globalWinFlags, _("Tuner"))) { + + //fft buffer + static double inBuf[FURNACE_FFT_SIZE]; + static fftw_complex outBuf[FURNACE_FFT_SIZE]; + static fftw_plan plan=nullptr; + + if (!plan) { + plan=fftw_plan_dft_r2c_1d(FURNACE_FFT_SIZE, inBuf, outBuf, FFTW_ESTIMATE); + } + + int chans=e->getAudioDescGot().outChans; + int needle=e->oscWritePos; + + for (int j=0; joscBuf[ch][pos]; + } + sample=sample/chans; + + inBuf[j]=sample * (0.5 * (1.0 - cos(2.0 * M_PI * j / (FURNACE_FFT_SIZE - 1)))); + } + + fftw_execute(plan); + + std::vector mag(FURNACE_FFT_SIZE / 2); + for (int k=0; k < FURNACE_FFT_SIZE / 2; k++) { + mag[k]=sqrt(outBuf[k][0]*outBuf[k][0]+outBuf[k][1]*outBuf[k][1]); + } + + //harmonic product spectrum + int harmonics = 2; + for (int h = 2; h <= harmonics; h++) { + for (int k = 0; k < FURNACE_FFT_SIZE / (2 * h); k++) { + mag[k] *= mag[k * h]; + } + } + + //peak with interpolation + int peakIndex = std::distance(mag.begin(), std::max_element(mag.begin(), mag.end())); + double sampleRate = e->getAudioDescGot().rate; + + double freq = 0.0; + if (peakIndex > 0 && peakIndex < (int)mag.size() - 1) { + double alpha = mag[peakIndex - 1]; + double beta = mag[peakIndex]; + double gamma = mag[peakIndex + 1]; + double p = 0.5 * (alpha - gamma) / (alpha - 2.0 * beta + gamma); + freq = (peakIndex + p) * (sampleRate / (double)FURNACE_FFT_SIZE); + } + else { + freq = (double)peakIndex * (sampleRate / (double)FURNACE_FFT_SIZE); + } + + + //tuning formulas + if (freq > 0 && freq < 5000.0) { + double noteExact = log2(freq / 440.0) * 12.0 + 45.0; + int noteRounded = (int)std::round(noteExact); + + int noteInOct = noteRounded % 12; + if (noteInOct < 0) noteInOct += 12; + + int octave = noteRounded / 12; + if (noteRounded < 0 && (noteRounded % 12)) --octave; + + double cents = (noteExact - noteRounded) * 100.0; + + static const char* names[12] = { + "C","C#","D","D#","E","F","F#","G","G#","A","A#","B" + }; + + + + ImGui::Text("Note: %s%d", names[noteInOct], octave); + ImGui::Text("Freq: %.2f Hz", freq); + ImGui::Text("Cents offset: %+0.1f", cents); + } + else { + ImGui::Text("Note: -"); + ImGui::Text("Freq: 0.00 Hz"); + ImGui::Text("Cents offset: +0.0"); + } + } + + if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) + curWindow = GUI_WINDOW_TUNER; + + ImGui::End(); +} +