init

Appli/Core/Src/audio_effects.c

@@ -0,0 +1,47 @@
+#include "audio_effects.h"
+
+static AudioEffectsParams g_params;
+
+static FxOctaverState    g_octaverState;
+static FxEqualizerState  g_eqState;
+static FxOverdriveState  g_overdriveState;
+static FxSaturationState g_saturationState;
+static FxEchoState       g_echoState;
+static FxReverbState     g_reverbState;
+
+void AudioEffects_Init(void)
+{
+    g_params.audio_on_off = false;
+    g_params.master_volume = 0.0f;
+    FxOctaver_Init(&g_octaverState, &g_params.octaver);
+    FxEqualizer_Init(&g_eqState, &g_params.equalizer);
+    FxOverdrive_Init(&g_overdriveState, &g_params.overdrive);
+    FxSaturation_Init(&g_saturationState, &g_params.saturation);
+    FxEcho_Init(&g_echoState, &g_params.echo);
+    FxReverb_Init(&g_reverbState, &g_params.reverb);
+}
+
+float AudioEffects_Process(float input)
+{
+    float sample = input;
+    sample = FxOctaver_Process(&g_octaverState, &g_params.octaver, sample);
+    sample = FxEqualizer_Process(&g_eqState, &g_params.equalizer, sample);
+    sample = FxOverdrive_Process(&g_overdriveState, &g_params.overdrive, sample);
+    sample = FxSaturation_Process(&g_saturationState, &g_params.saturation, sample);
+    sample = FxEcho_Process(&g_echoState, &g_params.echo, sample);
+    sample = FxReverb_Process(&g_reverbState, &g_params.reverb, sample);
+
+    /* Coupure de sortie : les effets continuent de tourner (pas de discontinuite
+     * d'etat au reactivation), seule la sortie audible est reduite au silence. */
+    if (!g_params.audio_on_off)
+    {
+        return 0.0f;
+    }
+
+    return sample * g_params.master_volume;
+}
+
+AudioEffectsParams *AudioEffects_GetParams(void)
+{
+    return &g_params;
+}