Convert CrasProcessorEffect to CRAS_STREAM_ACTIVE_AP_EFFECT in Rust

BUG=b:383924467
TEST=bazel test //...

Change-Id: I980ed54403c5f20ccc57d5fc51c1ecbd5d678a34
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/6090658
Commit-Queue: Li-Yu Yu <[email protected]>
Tested-by: [email protected] <[email protected]>
Reviewed-by: Hung-Hsien Chen <[email protected]>

Author: afq984

cras/common/rust_common.h

@@ -124,6 +124,8 @@ void cras_rust_free_string(char *s);
  */
 const char *cras_processor_effect_to_str(enum CrasProcessorEffect effect);
 
+CRAS_STREAM_ACTIVE_AP_EFFECT cras_processor_effect_to_active_ap_effects(enum CrasProcessorEffect effect);
+
 /**
  * Returns the names of active effects as a string.
  * The resulting string should be freed with cras_rust_free_string.

cras/common/src/types_internal.rs

@@ -32,6 +32,27 @@ impl CrasProcessorEffect {
             CrasProcessorEffect::Overridden => c"Overridden",
         }
     }
+
+    fn to_active_ap_effects(&self) -> CRAS_STREAM_ACTIVE_AP_EFFECT {
+        match self {
+            CrasProcessorEffect::NoEffects => CRAS_STREAM_ACTIVE_AP_EFFECT::empty(),
+            CrasProcessorEffect::Negate => CRAS_STREAM_ACTIVE_AP_EFFECT::NEGATE,
+            CrasProcessorEffect::NoiseCancellation => {
+                CRAS_STREAM_ACTIVE_AP_EFFECT::NOISE_CANCELLATION
+            }
+            CrasProcessorEffect::StyleTransfer => {
+                // Style transfer implies noise cancellation.
+                CRAS_STREAM_ACTIVE_AP_EFFECT::NOISE_CANCELLATION
+                    | CRAS_STREAM_ACTIVE_AP_EFFECT::STYLE_TRANSFER
+            }
+            CrasProcessorEffect::Beamforming => {
+                // Beamforming is a variant of noise cancellation.
+                CRAS_STREAM_ACTIVE_AP_EFFECT::NOISE_CANCELLATION
+                    | CRAS_STREAM_ACTIVE_AP_EFFECT::BEAMFORMING
+            }
+            CrasProcessorEffect::Overridden => CRAS_STREAM_ACTIVE_AP_EFFECT::PROCESSOR_OVERRIDDEN,
+        }
+    }
 }
 
 /// Returns the name of the CrasProcessorEffect as a string.
@@ -41,6 +62,13 @@ pub extern "C" fn cras_processor_effect_to_str(effect: CrasProcessorEffect) -> *
     effect.as_c_str().as_ptr()
 }
 
+#[no_mangle]
+pub extern "C" fn cras_processor_effect_to_active_ap_effects(
+    effect: CrasProcessorEffect,
+) -> CRAS_STREAM_ACTIVE_AP_EFFECT {
+    effect.to_active_ap_effects()
+}
+
 bitflags! {
     #[allow(non_camel_case_types)]
     #[repr(transparent)]

cras/src/server/cras_stream_apm.c

@@ -592,30 +592,8 @@ static CRAS_STREAM_ACTIVE_AP_EFFECT get_active_ap_effects(
     }
   }
 
-  switch (apm->cras_processor_effect) {
-    case NoEffects:
-      break;
-    case Negate:
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_NEGATE;
-      break;
-    case NoiseCancellation:
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_NOISE_CANCELLATION;
-      break;
-    case StyleTransfer:
-      // Style transfer implies noise cancellation.
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_NOISE_CANCELLATION;
-
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_STYLE_TRANSFER;
-      break;
-    case Beamforming:
-      // Beamforming is a variant of noise cancellation.
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_NOISE_CANCELLATION;
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_BEAMFORMING;
-      break;
-    case Overridden:
-      effects |= CRAS_STREAM_ACTIVE_AP_EFFECT_PROCESSOR_OVERRIDDEN;
-      break;
-  }
+  effects |=
+      cras_processor_effect_to_active_ap_effects(apm->cras_processor_effect);
 
   return effects;
 }