Make HWUI build for macOs

Only use AnimatedImageThread on Android, it is not currently supported
on host.

Bug: 148525019
Test: on macOs: lunch sdk & m libhwui
Change-Id: I644bc82887fb7e36b2a5e4117ee328a3df99a0d4

libs/hwui/Android.bp

@@ -168,7 +168,6 @@ cc_defaults {
         "renderthread/RenderTask.cpp",
         "renderthread/TimeLord.cpp",
         "hwui/AnimatedImageDrawable.cpp",
-        "hwui/AnimatedImageThread.cpp",
         "hwui/Bitmap.cpp",
         "hwui/Canvas.cpp",
         "hwui/ImageDecoder.cpp",
@@ -210,6 +209,7 @@ cc_defaults {
         android: {
 
             srcs: [
+                "hwui/AnimatedImageThread.cpp",
                 "pipeline/skia/ATraceMemoryDump.cpp",
                 "pipeline/skia/GLFunctorDrawable.cpp",
                 "pipeline/skia/LayerDrawable.cpp",

libs/hwui/hwui/AnimatedImageDrawable.cpp

@@ -15,7 +15,9 @@
  */
 
 #include "AnimatedImageDrawable.h"
+#ifdef __ANDROID__ // Layoutlib does not support AnimatedImageThread
 #include "AnimatedImageThread.h"
+#endif
 
 #include "utils/TraceUtils.h"
 
@@ -160,8 +162,10 @@ void AnimatedImageDrawable::onDraw(SkCanvas* canvas) {
     } else if (starting) {
         // The image has animated, and now is being reset. Queue up the first
         // frame, but keep showing the current frame until the first is ready.
+#ifdef __ANDROID__ // Layoutlib does not support AnimatedImageThread
         auto& thread = uirenderer::AnimatedImageThread::getInstance();
         mNextSnapshot = thread.reset(sk_ref_sp(this));
+#endif
     }
 
     bool finalFrame = false;
@@ -187,8 +191,10 @@ void AnimatedImageDrawable::onDraw(SkCanvas* canvas) {
     }
 
     if (mRunning && !mNextSnapshot.valid()) {
+#ifdef __ANDROID__ // Layoutlib does not support AnimatedImageThread
         auto& thread = uirenderer::AnimatedImageThread::getInstance();
         mNextSnapshot = thread.decodeNextFrame(sk_ref_sp(this));
+#endif
     }
 
     if (!drawDirectly) {