void DemoMainloop()
{
DemoUpdateStart();
if (speechtick < DemoTick())
{
int h = gSpeechbus.play(gSpeech[speechcount % 10], (rand() % 200) / 50.0f + 2, (rand() % 20) / 10.0f - 1);
speechcount++;
gSoloud.setRelativePlaySpeed(h, (rand() % 100) / 200.0f + 0.75f);
gSoloud.fadePan(h, (rand() % 20) / 10.0f - 1, 2);
speechtick = DemoTick() + 4000;
}
float *buf = gSoloud.getWave();
float *fft = gSoloud.calcFFT();
ONCE(ImGui::SetNextWindowPos(ImVec2(500, 20)));
ImGui::Begin("Output");
ImGui::PlotLines("##Wave", buf, 256, 0, "Wave", -1, 1, ImVec2(264, 80));
ImGui::PlotHistogram("##FFT", fft, 256 / 2, 0, "FFT", 0, 10, ImVec2(264, 80), 8);
ImGui::Text("Speech bus volume : %d%%", (int)floor(gSoloud.getVolume(gSpeechbusHandle) * 100));
ImGui::Text("Music bus volume : %d%%", (int)floor(gSoloud.getVolume(gMusicbusHandle) * 100));
ImGui::Text("Sfx bus volume : %d%%", (int)floor(gSoloud.getVolume(gSfxbusHandle) * 100));
ImGui::Text("Active voices : %d", gSoloud.getActiveVoiceCount());
ImGui::End();
ONCE(ImGui::SetNextWindowPos(ImVec2(20, 20)));
ImGui::Begin("Control");
if (ImGui::SliderFloat("Speech bus volume", &gSpeechvol, 0, 2))
{
gSoloud.setVolume(gSpeechbusHandle, gSpeechvol);
}
if (ImGui::SliderFloat("Music bus volume", &gMusicvol, 0, 2))
{
gSoloud.setVolume(gMusicbusHandle, gMusicvol);
}
if (ImGui::SliderFloat("Sfx bus volume", &gSfxvol, 0, 2))
{
gSoloud.setVolume(gSfxbusHandle, gSfxvol);
}
ImGui::End();
DemoUpdateEnd();
}
// Entry point
int main(int argc, char *argv[])
{
DemoInit();
gMusic.load("audio/Jakim - Aboriginal Derivatives.mon");
gMusic.setParams(10);
gEcho.setParams(0.2f, 0.5f, 0.05f);
gBiquad.setParams(SoLoud::BiquadResonantFilter::LOWPASS, 44100, 4000, 2);
gMusic.setLooping(1);
gMusic.setFilter(0, &gBiquad);
gMusic.setFilter(1, &gLofi);
gMusic.setFilter(2, &gEcho);
gMusic.setFilter(3, &gDCRemoval);
gSoloud.init(SoLoud::Soloud::CLIP_ROUNDOFF | SoLoud::Soloud::ENABLE_VISUALIZATION);
gMusichandle = gSoloud.play(gMusic);
float filter_param0[4] = { 0, 0, 0, 0 };
float filter_param1[4] = { 1000, 8000, 0, 0 };
float filter_param2[4] = { 2, 3, 0, 0 };
int hwchannels = 4;
int waveform = 0;
// Main loop: loop forever.
while (1)
{
gSoloud.setFilterParameter(gMusichandle, 0, 0, filter_param0[0]);
gSoloud.setFilterParameter(gMusichandle, 1, 0, filter_param0[1]);
gSoloud.setFilterParameter(gMusichandle, 2, 0, filter_param0[2]);
gSoloud.setFilterParameter(gMusichandle, 3, 0, filter_param0[3]);
gSoloud.setFilterParameter(gMusichandle, 0, 2, filter_param1[0]);
gSoloud.setFilterParameter(gMusichandle, 0, 3, filter_param2[0]);
gSoloud.setFilterParameter(gMusichandle, 1, 1, filter_param1[1]);
gSoloud.setFilterParameter(gMusichandle, 1, 2, filter_param2[1]);
DemoUpdateStart();
float *buf = gSoloud.getWave();
float *fft = gSoloud.calcFFT();
ONCE(ImGui::SetNextWindowPos(ImVec2(500, 20)));
ImGui::Begin("Output");
ImGui::PlotLines("##Wave", buf, 256, 0, "Wave", -1, 1, ImVec2(264, 80));
ImGui::PlotHistogram("##FFT", fft, 256/2, 0, "FFT", 0, 10, ImVec2(264,80),8);
ImGui::Text("Music volume : %d%%", (int)floor(gSoloud.getVolume(gMusichandle) * 100));
ImGui::Text("Active voices : %d", gSoloud.getActiveVoiceCount());
ImGui::End();
ONCE(ImGui::SetNextWindowPos(ImVec2(20, 20)));
ImGui::Begin("Control");
if (ImGui::SliderInt("Channels", &hwchannels, 1, 4))
{
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::CollapsingHeader("Waveform", (const char*)0, true, false))
{
if (ImGui::RadioButton("Square", waveform == SoLoud::Monotone::SQUARE))
{
waveform = SoLoud::Monotone::SQUARE;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("Saw", waveform == SoLoud::Monotone::SAW))
{
waveform = SoLoud::Monotone::SAW;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("Sin", waveform == SoLoud::Monotone::SIN))
{
waveform = SoLoud::Monotone::SIN;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("SawSin", waveform == SoLoud::Monotone::SAWSIN))
{
waveform = SoLoud::Monotone::SAWSIN;
gMusic.setParams(hwchannels, waveform);
}
}
ImGui::Separator();
ImGui::Text("Biquad filter (lowpass)");
ImGui::SliderFloat("Wet##4", &filter_param0[0], 0, 1);
ImGui::SliderFloat("Frequency##4", &filter_param1[0], 0, 8000);
ImGui::SliderFloat("Resonance##4", &filter_param2[0], 1, 20);
ImGui::Separator();
ImGui::Text("Lofi filter");
ImGui::SliderFloat("Wet##2", &filter_param0[1], 0, 1);
ImGui::SliderFloat("Rate##2", &filter_param1[1], 1000, 8000);
ImGui::SliderFloat("Bit depth##2", &filter_param2[1], 0, 8);
ImGui::Separator();
ImGui::Text("Echo filter");
ImGui::SliderFloat("Wet##3", &filter_param0[2], 0, 1);
ImGui::Separator();
ImGui::Text("DC removal filter");
ImGui::SliderFloat("Wet##1", &filter_param0[3], 0, 1);
ImGui::End();
DemoUpdateEnd();
}
return 0;
}
void DemoMainloop()
{
gSoloud.setFilterParameter(gMusichandle, 0, 0, filter_param0[0]);
gSoloud.setFilterParameter(gMusichandle, 1, 0, filter_param0[1]);
gSoloud.setFilterParameter(gMusichandle, 2, 0, filter_param0[2]);
gSoloud.setFilterParameter(gMusichandle, 3, 0, filter_param0[3]);
gSoloud.setFilterParameter(gMusichandle, 0, 2, filter_param1[0]);
gSoloud.setFilterParameter(gMusichandle, 0, 3, filter_param2[0]);
gSoloud.setFilterParameter(gMusichandle, 1, 1, filter_param1[1]);
gSoloud.setFilterParameter(gMusichandle, 1, 2, filter_param2[1]);
DemoUpdateStart();
float *buf = gSoloud.getWave();
float *fft = gSoloud.calcFFT();
ONCE(ImGui::SetNextWindowPos(ImVec2(500, 20)));
ImGui::Begin("Output");
ImGui::PlotLines("##Wave", buf, 256, 0, "Wave", -1, 1, ImVec2(264, 80));
ImGui::PlotHistogram("##FFT", fft, 256/2, 0, "FFT", 0, 10, ImVec2(264,80),8);
ImGui::Text("Music volume : %d%%", (int)floor(gSoloud.getVolume(gMusichandle) * 100));
ImGui::Text("Active voices : %d", gSoloud.getActiveVoiceCount());
ImGui::End();
ONCE(ImGui::SetNextWindowPos(ImVec2(20, 20)));
ImGui::Begin("Control");
if (ImGui::SliderInt("Channels", &hwchannels, 1, 4))
{
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::CollapsingHeader("Waveform", (const char*)0, true, false))
{
if (ImGui::RadioButton("Square", waveform == SoLoud::Monotone::SQUARE))
{
waveform = SoLoud::Monotone::SQUARE;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("Saw", waveform == SoLoud::Monotone::SAW))
{
waveform = SoLoud::Monotone::SAW;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("Sin", waveform == SoLoud::Monotone::SIN))
{
waveform = SoLoud::Monotone::SIN;
gMusic.setParams(hwchannels, waveform);
}
if (ImGui::RadioButton("SawSin", waveform == SoLoud::Monotone::SAWSIN))
{
waveform = SoLoud::Monotone::SAWSIN;
gMusic.setParams(hwchannels, waveform);
}
}
ImGui::Separator();
ImGui::Text("Biquad filter (lowpass)");
ImGui::SliderFloat("Wet##4", &filter_param0[0], 0, 1);
ImGui::SliderFloat("Frequency##4", &filter_param1[0], 0, 8000);
ImGui::SliderFloat("Resonance##4", &filter_param2[0], 1, 20);
ImGui::Separator();
ImGui::Text("Lofi filter");
ImGui::SliderFloat("Wet##2", &filter_param0[1], 0, 1);
ImGui::SliderFloat("Rate##2", &filter_param1[1], 1000, 8000);
ImGui::SliderFloat("Bit depth##2", &filter_param2[1], 0, 8);
ImGui::Separator();
ImGui::Text("Echo filter");
ImGui::SliderFloat("Wet##3", &filter_param0[2], 0, 1);
ImGui::Separator();
ImGui::Text("DC removal filter");
ImGui::SliderFloat("Wet##1", &filter_param0[3], 0, 1);
ImGui::End();
DemoUpdateEnd();
}
void render()
{
// Lock surface if needed
if (SDL_MUSTLOCK(screen))
if (SDL_LockSurface(screen) < 0)
return;
// Ask SDL for the time in milliseconds
int tick = SDL_GetTicks();
float *buf = gSoloud.getWave();
float *fft = gSoloud.calcFFT();
if (buf && fft)
{
int i, j;
for (i = 0; i < 256; i++)
for (j = 0; j < 400; j++)
putpixel(j, i, 0);
int last = 0;
for (i = 0; i < 256; i++)
{
int v = 256-(int)floor(fft[i] * 127);
if (v < 0) v = 0;
if (v > 256) v = 256;
for (j = v; j < 256; j++)
{
putpixel(i,j,0x0000ff);
}
v = (int)floor(buf[i] * 127 + 128);
if (v < 0) v = 0;
if (v > 256) v = 256;
for (j = 0; j < 6; j++)
{
putpixel(i,j+v,0xff0000);
}
putpixel(200 + v,128+(v-last),0x00ff00);
last = v;
}
}
drawstring("1-6: sfxr sound effects",0,0);
drawstring("7-8: switch music",0,16);
drawstring("9-0: slow down/speed up",0,32);
char temp[256];
sprintf(temp, "Music1 volume: %d%%", (int)floor(gSoloud.getVolume(gMusichandle1) * 100));
drawstring(temp,0,48);
sprintf(temp, "Music2 volume: %d%%", (int)floor(gSoloud.getVolume(gMusichandle2) * 100));
drawstring(temp,0,64);
sprintf(temp, "Music rel. speed: %d%%", (int)floor(gSoloud.getRelativePlaySpeed(gMusichandle2) * 100));
drawstring(temp,0,80);
sprintf(temp, "Active voices: %d", gSoloud.getActiveVoiceCount());
drawstring(temp,0,96);
// Unlock if needed
if (SDL_MUSTLOCK(screen))
SDL_UnlockSurface(screen);
// Tell SDL to update the whole screen
SDL_UpdateRect(screen, 0, 0, 400, 256);
}