more support for audio effect offload

Offloading of audio effects is now enabled for offloaded
output threads. If an effect not supporting offload is enabled,
the AudioTrack is invalidated so that it can be recreated in PCM
mode.

Fix some issues in effect proxy related to handling of effect
commands to offloaded and non offloaded effects.

Also fixed a bug on capture index in software Visualizer effect.

Bug: 8174034.

Change-Id: Ib23d3c2d5a652361b0aaec7faee09102f2b18fce

1 files changed, 7 insertions, 2 deletions

diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index bac50f2..c35cff0 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -111,6 +111,10 @@ public:
     bool             purgeHandles();
     void             lock() { mLock.lock(); }
     void             unlock() { mLock.unlock(); }
+    bool             isOffloadable() const
+                        { return (mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0; }
+    status_t         setOffloaded(bool offloaded, audio_io_handle_t io);
+    bool             isOffloaded() const;
 
     void             dump(int fd, const Vector<String16>& args);
 
@@ -144,6 +148,7 @@ mutable Mutex               mLock;      // mutex for process, commands and handl
                                     // sending disable command.
     uint32_t mDisableWaitCnt;       // current process() calls count during disable period.
     bool     mSuspended;            // effect is suspended: temporarily disabled by framework
+    bool     mOffloaded;            // effect is currently offloaded to the audio DSP
 };
 
 // The EffectHandle class implements the IEffect interface. It provides resources
@@ -303,8 +308,8 @@ public:
 
     void clearInputBuffer();
 
-    // At least one effect in the chain is enabled
-    bool isEnabled();
+    // At least one non offloadable effect in the chain is enabled
+    bool isNonOffloadableEnabled();
 
 
     void dump(int fd, const Vector<String16>& args);