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#include "../uicommon/imgui.h"
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#include "audio.h"
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#include <math.h>
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const char* TOOL_NAME = "Volume Meter Test Tool";
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int TOOL_WIDTH = 640;
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int TOOL_HEIGHT = 510;
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int next_window_dims(int y_pos, int height)
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{
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ImGui::SetNextWindowPos(ImVec2(0, static_cast<float>(y_pos)));
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ImGui::SetNextWindowSize(ImVec2(640, static_cast<float>(height)));
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return y_pos + height;
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}
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void FAudioTool_Init()
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{
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/* Nothing to do... */
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}
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void FAudioTool_Quit()
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{
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/* Nothing to do... */
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}
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void FAudioTool_Update()
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{
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bool update_engine = false;
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bool update_wave = false;
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bool play_wave = false;
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#define MAX_TIMELINE 120
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static float peaksL[MAX_TIMELINE] = { 0 };
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static float peaksR[MAX_TIMELINE] = { 0 };
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static float rmsL[MAX_TIMELINE] = { 0 };
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static float rmsR[MAX_TIMELINE] = { 0 };
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static int vmOffset = 0;
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// GUI
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int window_y = next_window_dims(0, 50);
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ImGui::Begin("Output Audio Engine");
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static int audio_engine = (int) AudioEngine_FAudio;
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update_engine |= ImGui::RadioButton(
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"FAudio",
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&audio_engine,
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(int) AudioEngine_FAudio);
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ImGui::SameLine();
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#ifdef HAVE_XAUDIO2
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update_engine |= ImGui::RadioButton(
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"XAudio2",
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&audio_engine,
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(int) AudioEngine_XAudio2
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);
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#endif
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ImGui::End();
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window_y = next_window_dims(window_y, 80);
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ImGui::Begin("Wave file to play");
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static int wave_index = (int) AudioWave_SnareDrum01;
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static bool wave_stereo = false;
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update_wave |= ImGui::RadioButton(
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"Snare Drum (Forte)",
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&wave_index,
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(int) AudioWave_SnareDrum01
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);
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ImGui::SameLine();
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update_wave |= ImGui::RadioButton(
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"Snare Drum (Fortissimo)",
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&wave_index,
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(int) AudioWave_SnareDrum02
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);
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ImGui::SameLine();
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update_wave |= ImGui::RadioButton(
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"Snare Drum (Mezzo-Forte)",
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&wave_index,
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(int) AudioWave_SnareDrum03
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);
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play_wave = ImGui::Button("Play"); ImGui::SameLine();
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update_wave |= ImGui::Checkbox("Stereo", &wave_stereo);
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ImGui::End();
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window_y = next_window_dims(window_y, 370);
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ImGui::Begin("Volume Meter");
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ImGui::PlotLines(
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"Peaks Channel 1",
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peaksL,
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MAX_TIMELINE,
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vmOffset,
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NULL,
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0.0f,
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1.0f,
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ImVec2(0, 80)
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);
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ImGui::PlotLines(
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"Peaks Channel 2",
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peaksR,
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MAX_TIMELINE,
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vmOffset,
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NULL,
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0.0f,
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1.0f,
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ImVec2(0, 80)
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);
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ImGui::PlotLines(
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"RMS Channel 1",
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rmsL,
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MAX_TIMELINE,
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vmOffset,
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NULL,
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0.0f,
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1.0f,
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ImVec2(0, 80)
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);
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ImGui::PlotLines(
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"RMS Channel 2",
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rmsR,
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MAX_TIMELINE,
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vmOffset,
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NULL,
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0.0f,
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1.0f,
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ImVec2(0, 80)
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);
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ImGui::End();
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// Audio context
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static AudioContext *player = NULL;
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if (player == NULL || update_engine)
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{
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if (player != NULL)
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{
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audio_destroy_context(player);
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}
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player = audio_create_context((AudioEngine) audio_engine);
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}
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if (update_wave | update_engine)
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{
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audio_wave_load(player, (AudioSampleWave) wave_index, wave_stereo);
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}
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if (play_wave)
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{
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audio_wave_play(player);
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}
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float peaks[2] = { 0.0f, 0.0f };
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float rms[2] = { 0.0f, 0.0f };
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audio_update_volumemeter(player, peaks, rms);
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peaksL[vmOffset] = peaks[0];
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peaksR[vmOffset] = peaks[1];
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rmsL[vmOffset] = rms[0];
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rmsR[vmOffset] = rms[1];
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vmOffset = (vmOffset + 1) % MAX_TIMELINE;
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}
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