My game has a baseline memory usage of around 315 MB. However calling the following functions leads to a sharp rise in memory usage, leveling out at around 480 MB while reaching spikes of 580 MB and more, accompanied by memory warnings and even crashes.
What happens: First the TakeScreenshot IEnum is called three times in a row, wich is the max. count for screenshots in one session. Second the function SendEmailTask is called showing all three pictures for the user to choose one. By choosing picture "#1" the function SendImage1 is triggered.
Maybe someone can point me to where and how I can get some of that memory back, that would be really great!
All relevant code should be here:
public class Picture : MonoBehaviour {
private int ssCount = 0;
private Sprite cachedImage1sprite;
private Sprite cachedImage2sprite;
private Sprite cachedImage3sprite;
private Texture2D cachedImage1;
private Texture2D cachedImage2;
private Texture2D cachedImage3;
private Texture2D JPGtex1;
private Texture2D JPGtex2;
private Texture2D JPGtex3;
private Texture2D tex;
void Awake () {
}
// Use this for initialization
void Start () {
JPGtex1 = new Texture2D (2, 2, TextureFormat.RGB24, false );
JPGtex2 = new Texture2D (2, 2, TextureFormat.RGB24, false );
JPGtex3 = new Texture2D (2, 2, TextureFormat.RGB24, false );
// Create a texture the size of the screen, RGB24 format
int width = Screen.width;
int height = Screen.height;
tex = new Texture2D( width, height, TextureFormat.RGB24, false );
}
// Update is called once per frame
void Update () {
if (ssCount == 0) {
SendEmail.interactable = false;
TakePhoto.interactable = true;
} else if (ssCount == 1) {
SendEmail.interactable = true;
} else if (ssCount == 3) {
TakePhoto.interactable = false;
}
//Debug.Log (ssCount);
}
void SendEmailTask(){
if (ssCount == 3) {
cachedImage1 = SA.IOSNative.Storage.AppCache.GetTexture ("IMAGE_1");
cachedImage2 = SA.IOSNative.Storage.AppCache.GetTexture ("IMAGE_2");
cachedImage3 = SA.IOSNative.Storage.AppCache.GetTexture ("IMAGE_3");
ImagePicker.SetActive (true);
//Image1
Rect rec1 = new Rect(0, 0, cachedImage1.width, cachedImage1.height);
cachedImage1sprite = Sprite.Create(cachedImage1, rec1, new Vector2(0,0),1);
Image1.image.sprite = cachedImage1sprite;
//Image2
Rect rec2 = new Rect(0, 0, cachedImage2.width, cachedImage2.height);
cachedImage2sprite = Sprite.Create(cachedImage2, rec2, new Vector2(0,0),1);
Image2.image.sprite = cachedImage2sprite;
//Image3
Rect rec3 = new Rect(0, 0, cachedImage3.width, cachedImage3.height);
cachedImage3sprite = Sprite.Create(cachedImage3, rec3, new Vector2(0,0),1);
Image3.image.sprite = cachedImage3sprite;
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_1");
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_2");
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_3");
}
}
IEnumerator TakeScreenshot() {
// Wait till the last possible moment before screen rendering to hide the UI
yield return null;
GameObject.Find("Buttons").GetComponent<Canvas>().enabled = false;
FlashImage();
// Wait for screen rendering to complete
yield return new WaitForEndOfFrame();
// Create a texture the size of the screen, RGB24 format
int width = Screen.width;
int height = Screen.height;
// Read screen contents into the texture
tex.ReadPixels( new Rect(0, 0, width, height), 0, 0 );
tex.Apply();
//byte[] screenshot = tex.EncodeToPNG();
print("Size is " + tex.width + " by " + tex.height);
if (ssCount == 0) {
SA.IOSNative.Storage.AppCache.Save ("IMAGE_1", tex);
ssCount++;
} else if (ssCount == 1) {
SA.IOSNative.Storage.AppCache.Save ("IMAGE_2", tex);
ssCount++;
} else if (ssCount == 2) {
SA.IOSNative.Storage.AppCache.Save ("IMAGE_3", tex);
ssCount++;
}
IOSCamera.Instance.SaveTextureToCameraRoll(tex); //Save to Cameraroll
// Show UI after we're done
GameObject.Find("Buttons").GetComponent<Canvas>().enabled = true;
}
public void SendImage1() {
byte[] screenshot1;
screenshot1 = cachedImage1.EncodeToJPG ();
if (Facebook == false) {
JPGtex1.LoadImage (screenshot1);
TextureScale.Bilinear (JPGtex1, 1200, 900);
IOSSocialManager.Instance.SendMail (SubjectText, EmailText, "", JPGtex1);
} else {
StartCoroutine(UploadToPage(screenshot1));
}
backToGame ();
}
public void backToGame() {
Destroy (cachedImage1sprite);
Destroy (cachedImage2sprite);
Destroy (cachedImage3sprite);
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_1");
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_2");
SA.IOSNative.Storage.AppCache.Remove ("IMAGE_3");
Destroy(cachedImage1);
Destroy(cachedImage2);
Destroy(cachedImage3);
cachedImage1 = null;
cachedImage2 = null;
cachedImage3 = null;
Image3Obj.SetActive (true);
ImagePicker.SetActive (false);
}
}
EDIT
Detailed memory profiler after going thru the routine twice:
Xcode memory profiler after going thru the routine twice:
