Add camera service support for SurfaceTexture.
This change enables the use of a SurfaceTexture in place of a Surface as
the destination of camera preview frames.
Change-Id: Ic70d404c8fe261e9d5da6f1de93d6babb5b191cb
diff --git a/camera/Android.mk b/camera/Android.mk
index 03ff229..2f16923 100644
--- a/camera/Android.mk
+++ b/camera/Android.mk
@@ -14,7 +14,8 @@
libbinder \
libhardware \
libsurfaceflinger_client \
- libui
+ libui \
+ libgui
LOCAL_MODULE:= libcamera_client
diff --git a/camera/Camera.cpp b/camera/Camera.cpp
index ab626ad..907f119 100644
--- a/camera/Camera.cpp
+++ b/camera/Camera.cpp
@@ -182,6 +182,20 @@
}
}
+// pass the buffered ISurfaceTexture to the camera service
+status_t Camera::setPreviewTexture(const sp<ISurfaceTexture>& surfaceTexture)
+{
+ LOGV("setPreviewTexture(%p)", surfaceTexture.get());
+ sp <ICamera> c = mCamera;
+ if (c == 0) return NO_INIT;
+ if (surfaceTexture != 0) {
+ return c->setPreviewTexture(surfaceTexture);
+ } else {
+ LOGD("app passed NULL surface");
+ return c->setPreviewTexture(0);
+ }
+}
+
// start preview mode
status_t Camera::startPreview()
{
diff --git a/camera/ICamera.cpp b/camera/ICamera.cpp
index 7ba8d12..0881d65 100644
--- a/camera/ICamera.cpp
+++ b/camera/ICamera.cpp
@@ -28,6 +28,7 @@
enum {
DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
SET_PREVIEW_DISPLAY,
+ SET_PREVIEW_TEXTURE,
SET_PREVIEW_CALLBACK_FLAG,
START_PREVIEW,
STOP_PREVIEW,
@@ -78,6 +79,18 @@
return reply.readInt32();
}
+ // pass the buffered SurfaceTexture to the camera service
+ status_t setPreviewTexture(const sp<ISurfaceTexture>& surfaceTexture)
+ {
+ LOGV("setPreviewTexture");
+ Parcel data, reply;
+ data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+ sp<IBinder> b(surfaceTexture->asBinder());
+ data.writeStrongBinder(b);
+ remote()->transact(SET_PREVIEW_TEXTURE, data, &reply);
+ return reply.readInt32();
+ }
+
// set the preview callback flag to affect how the received frames from
// preview are handled. See Camera.h for details.
void setPreviewCallbackFlag(int flag)
@@ -296,6 +309,13 @@
reply->writeInt32(setPreviewDisplay(surface));
return NO_ERROR;
} break;
+ case SET_PREVIEW_TEXTURE: {
+ LOGV("SET_PREVIEW_TEXTURE");
+ CHECK_INTERFACE(ICamera, data, reply);
+ sp<ISurfaceTexture> st = interface_cast<ISurfaceTexture>(data.readStrongBinder());
+ reply->writeInt32(setPreviewTexture(st));
+ return NO_ERROR;
+ } break;
case SET_PREVIEW_CALLBACK_FLAG: {
LOGV("SET_PREVIEW_CALLBACK_TYPE");
CHECK_INTERFACE(ICamera, data, reply);