Add support for setting camera display orientation.

camera/libcameraservice/CameraService.cpp

@@ -1191,14 +1191,6 @@ status_t CameraService::Client::setParameters(const String8& params)
 
     CameraParameters p(params);
 
-    // The orientation parameter is actually for CameraService, not for the camera driver.
-    if (p.getOrientation() == CameraParameters::CAMERA_ORIENTATION_PORTRAIT) {
-        LOGV("portrait mode");
-        mOrientation = ISurface::BufferHeap::ROT_90;
-    } else {
-        mOrientation = 0;
-    }
-
     return mHardware->setParameters(p);
 }
 
@@ -1224,6 +1216,30 @@ status_t CameraService::Client::sendCommand(int32_t cmd, int32_t arg1, int32_t a
     status_t result = checkPid();
     if (result != NO_ERROR) return result;
 
+    if (cmd == CAMERA_CMD_SET_DISPLAY_ORIENTATION) {
+        // The orientation cannot be set during preview.
+        if (mHardware->previewEnabled()) {
+            return INVALID_OPERATION;
+        }
+        switch (arg1) {
+            case 0:
+                mOrientation = ISurface::BufferHeap::ROT_0;
+                break;
+            case 90:
+                mOrientation = ISurface::BufferHeap::ROT_90;
+                break;
+            case 180:
+                mOrientation = ISurface::BufferHeap::ROT_180;
+                break;
+            case 270:
+                mOrientation = ISurface::BufferHeap::ROT_270;
+                break;
+            default:
+                return BAD_VALUE;
+        }
+        return OK;
+    }
+
     if (mHardware == 0) {
         LOGE("mHardware is NULL, returning.");
         return INVALID_OPERATION;

core/java/android/hardware/Camera.java

@@ -542,6 +542,21 @@ public class Camera {
      */
     public native final void stopSmoothZoom();
 
+    /**
+     * Set the display orientation. This affects the preview frames and the
+     * picture displayed after snapshot. This method is useful for portrait
+     * mode applications.
+     *
+     * This does not affect the order of byte array passed in
+     * {@link PreviewCallback#onPreviewFrame}. This method is not allowed to
+     * be called during preview.
+     *
+     * @param degrees the angle that the picture will be rotated clockwise.
+     *                Valid values are 0, 90, 180, and 270.
+     * @hide
+     */
+    public native final void setDisplayOrientation(int degrees);
+
     /**
      * Handles the zoom callback.
      *

core/jni/android_hardware_Camera.cpp

@@ -546,6 +546,18 @@ static void android_hardware_Camera_stopSmoothZoom(JNIEnv *env, jobject thiz)
     }
 }
 
+static void android_hardware_Camera_setDisplayOrientation(JNIEnv *env, jobject thiz,
+        jint value)
+{
+    LOGV("setDisplayOrientation");
+    sp<Camera> camera = get_native_camera(env, thiz, NULL);
+    if (camera == 0) return;
+
+    if (camera->sendCommand(CAMERA_CMD_SET_DISPLAY_ORIENTATION, value, 0) != NO_ERROR) {
+        jniThrowException(env, "java/lang/RuntimeException", "set display orientation failed");
+    }
+}
+
 //-------------------------------------------------
 
 static JNINativeMethod camMethods[] = {
@@ -603,6 +615,9 @@ static JNINativeMethod camMethods[] = {
   { "stopSmoothZoom",
     "()V",
     (void *)android_hardware_Camera_stopSmoothZoom },
+  { "setDisplayOrientation",
+    "(I)V",
+    (void *)android_hardware_Camera_setDisplayOrientation },
 };
 
 struct field {

include/ui/Camera.h

@@ -82,6 +82,7 @@ enum {
 enum {
     CAMERA_CMD_START_SMOOTH_ZOOM     = 1,
     CAMERA_CMD_STOP_SMOOTH_ZOOM      = 2,
+    CAMERA_CMD_SET_DISPLAY_ORIENTATION = 3,
 };
 
 // camera fatal errors
@@ -209,4 +210,3 @@ private:
 }; // namespace android
 
 #endif
-

include/ui/CameraParameters.h

@@ -29,12 +29,6 @@ public:
     CameraParameters(const String8 &params) { unflatten(params); }
     ~CameraParameters();
 
-    enum {
-        CAMERA_ORIENTATION_UNKNOWN = 0,
-        CAMERA_ORIENTATION_PORTRAIT = 1,
-        CAMERA_ORIENTATION_LANDSCAPE = 2,
-    };
-
     String8 flatten() const;
     void unflatten(const String8 &params);
 
@@ -63,9 +57,6 @@ public:
     void setPictureFormat(const char *format);
     const char *getPictureFormat() const;
 
-    int getOrientation() const;
-    void setOrientation(int orientation);
-
     void dump() const;
     status_t dump(int fd, const Vector<String16>& args) const;
 

libs/ui/CameraParameters.cpp

@@ -121,9 +121,6 @@ const char CameraParameters::FOCUS_MODE_INFINITY[] = "infinity";
 const char CameraParameters::FOCUS_MODE_MACRO[] = "macro";
 const char CameraParameters::FOCUS_MODE_FIXED[] = "fixed";
 
-static const char* portrait = "portrait";
-static const char* landscape = "landscape";
-
 CameraParameters::CameraParameters()
                 : mMap()
 {
@@ -282,23 +279,6 @@ void CameraParameters::setPreviewFormat(const char *format)
     set(KEY_PREVIEW_FORMAT, format);
 }
 
-int CameraParameters::getOrientation() const
-{
-    const char* orientation = get("orientation");
-    if (orientation && !strcmp(orientation, portrait))
-        return CAMERA_ORIENTATION_PORTRAIT;
-    return CAMERA_ORIENTATION_LANDSCAPE;
-}
-
-void CameraParameters::setOrientation(int orientation)
-{
-    if (orientation == CAMERA_ORIENTATION_PORTRAIT) {
-        set("orientation", portrait);
-    } else {
-        set("orientation", landscape);
-    }
-}
-
 const char *CameraParameters::getPreviewFormat() const
 {
     return get(KEY_PREVIEW_FORMAT);