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Diffstat (limited to 'src/com/android/camera/support/common/Utils.java')
-rw-r--r--src/com/android/camera/support/common/Utils.java325
1 files changed, 0 insertions, 325 deletions
diff --git a/src/com/android/camera/support/common/Utils.java b/src/com/android/camera/support/common/Utils.java
deleted file mode 100644
index f36d6adcd..000000000
--- a/src/com/android/camera/support/common/Utils.java
+++ /dev/null
@@ -1,325 +0,0 @@
-package com.android.camera.support.common;
-
-
-import android.content.Context;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.database.Cursor;
-import android.os.Build;
-import android.os.ParcelFileDescriptor;
-import android.text.TextUtils;
-import android.util.Log;
-
-import java.io.Closeable;
-import java.io.IOException;
-import java.io.InterruptedIOException;
-
-public class Utils {
- private static final String TAG = "Utils";
- private static final String DEBUG_TAG = "GalleryDebug";
-
- private static final long POLY64REV = 0x95AC9329AC4BC9B5L;
- private static final long INITIALCRC = 0xFFFFFFFFFFFFFFFFL;
-
- private static long[] sCrcTable = new long[256];
-
- private static final boolean IS_DEBUG_BUILD =
- Build.TYPE.equals("eng") || Build.TYPE.equals("userdebug");
-
- private static final String MASK_STRING = "********************************";
-
- // Throws AssertionError if the input is false.
- public static void assertTrue(boolean cond) {
- if (!cond) {
- throw new AssertionError();
- }
- }
-
- // Throws AssertionError with the message. We had a method having the form
- // assertTrue(boolean cond, String message, Object ... args);
- // However a call to that method will cause memory allocation even if the
- // condition is false (due to autoboxing generated by "Object ... args"),
- // so we don't use that anymore.
- public static void fail(String message, Object ... args) {
- throw new AssertionError(
- args.length == 0 ? message : String.format(message, args));
- }
-
- // Throws NullPointerException if the input is null.
- public static <T> T checkNotNull(T object) {
- if (object == null) throw new NullPointerException();
- return object;
- }
-
- // Returns true if two input Object are both null or equal
- // to each other.
- public static boolean equals(Object a, Object b) {
- return (a == b) || (a == null ? false : a.equals(b));
- }
-
- // Returns the next power of two.
- // Returns the input if it is already power of 2.
- // Throws IllegalArgumentException if the input is <= 0 or
- // the answer overflows.
- public static int nextPowerOf2(int n) {
- if (n <= 0 || n > (1 << 30)) throw new IllegalArgumentException("n is invalid: " + n);
- n -= 1;
- n |= n >> 16;
- n |= n >> 8;
- n |= n >> 4;
- n |= n >> 2;
- n |= n >> 1;
- return n + 1;
- }
-
- // Returns the previous power of two.
- // Returns the input if it is already power of 2.
- // Throws IllegalArgumentException if the input is <= 0
- public static int prevPowerOf2(int n) {
- if (n <= 0) throw new IllegalArgumentException();
- return Integer.highestOneBit(n);
- }
-
- // Returns the input value x clamped to the range [min, max].
- public static int clamp(int x, int min, int max) {
- if (x > max) return max;
- if (x < min) return min;
- return x;
- }
-
- // Returns the input value x clamped to the range [min, max].
- public static float clamp(float x, float min, float max) {
- if (x > max) return max;
- if (x < min) return min;
- return x;
- }
-
- // Returns the input value x clamped to the range [min, max].
- public static long clamp(long x, long min, long max) {
- if (x > max) return max;
- if (x < min) return min;
- return x;
- }
-
- public static boolean isOpaque(int color) {
- return color >>> 24 == 0xFF;
- }
-
- public static void swap(int[] array, int i, int j) {
- int temp = array[i];
- array[i] = array[j];
- array[j] = temp;
- }
-
- /**
- * A function thats returns a 64-bit crc for string
- *
- * @param in input string
- * @return a 64-bit crc value
- */
- public static final long crc64Long(String in) {
- if (in == null || in.length() == 0) {
- return 0;
- }
- return crc64Long(getBytes(in));
- }
-
- static {
- // http://bioinf.cs.ucl.ac.uk/downloads/crc64/crc64.c
- long part;
- for (int i = 0; i < 256; i++) {
- part = i;
- for (int j = 0; j < 8; j++) {
- long x = ((int) part & 1) != 0 ? POLY64REV : 0;
- part = (part >> 1) ^ x;
- }
- sCrcTable[i] = part;
- }
- }
-
- public static final long crc64Long(byte[] buffer) {
- long crc = INITIALCRC;
- for (int k = 0, n = buffer.length; k < n; ++k) {
- crc = sCrcTable[(((int) crc) ^ buffer[k]) & 0xff] ^ (crc >> 8);
- }
- return crc;
- }
-
- public static byte[] getBytes(String in) {
- byte[] result = new byte[in.length() * 2];
- int output = 0;
- for (char ch : in.toCharArray()) {
- result[output++] = (byte) (ch & 0xFF);
- result[output++] = (byte) (ch >> 8);
- }
- return result;
- }
-
- public static void closeSilently(Closeable c) {
- if (c == null) return;
- try {
- c.close();
- } catch (IOException t) {
- Log.w(TAG, "close fail ", t);
- }
- }
-
- public static int compare(long a, long b) {
- return a < b ? -1 : a == b ? 0 : 1;
- }
-
- public static int ceilLog2(float value) {
- int i;
- for (i = 0; i < 31; i++) {
- if ((1 << i) >= value) break;
- }
- return i;
- }
-
- public static int floorLog2(float value) {
- int i;
- for (i = 0; i < 31; i++) {
- if ((1 << i) > value) break;
- }
- return i - 1;
- }
-
- public static void closeSilently(ParcelFileDescriptor fd) {
- try {
- if (fd != null) fd.close();
- } catch (Throwable t) {
- Log.w(TAG, "fail to close", t);
- }
- }
-
- public static void closeSilently(Cursor cursor) {
- try {
- if (cursor != null) cursor.close();
- } catch (Throwable t) {
- Log.w(TAG, "fail to close", t);
- }
- }
-
- public static float interpolateAngle(
- float source, float target, float progress) {
- // interpolate the angle from source to target
- // We make the difference in the range of [-179, 180], this is the
- // shortest path to change source to target.
- float diff = target - source;
- if (diff < 0) diff += 360f;
- if (diff > 180) diff -= 360f;
-
- float result = source + diff * progress;
- return result < 0 ? result + 360f : result;
- }
-
- public static float interpolateScale(
- float source, float target, float progress) {
- return source + progress * (target - source);
- }
-
- public static String ensureNotNull(String value) {
- return value == null ? "" : value;
- }
-
- public static float parseFloatSafely(String content, float defaultValue) {
- if (content == null) return defaultValue;
- try {
- return Float.parseFloat(content);
- } catch (NumberFormatException e) {
- return defaultValue;
- }
- }
-
- public static int parseIntSafely(String content, int defaultValue) {
- if (content == null) return defaultValue;
- try {
- return Integer.parseInt(content);
- } catch (NumberFormatException e) {
- return defaultValue;
- }
- }
-
- public static boolean isNullOrEmpty(String exifMake) {
- return TextUtils.isEmpty(exifMake);
- }
-
- public static void waitWithoutInterrupt(Object object) {
- try {
- object.wait();
- } catch (InterruptedException e) {
- Log.w(TAG, "unexpected interrupt: " + object);
- }
- }
-
- public static boolean handleInterrruptedException(Throwable e) {
- // A helper to deal with the interrupt exception
- // If an interrupt detected, we will setup the bit again.
- if (e instanceof InterruptedIOException
- || e instanceof InterruptedException) {
- Thread.currentThread().interrupt();
- return true;
- }
- return false;
- }
-
- /**
- * @return String with special XML characters escaped.
- */
- public static String escapeXml(String s) {
- StringBuilder sb = new StringBuilder();
- for (int i = 0, len = s.length(); i < len; ++i) {
- char c = s.charAt(i);
- switch (c) {
- case '<': sb.append("&lt;"); break;
- case '>': sb.append("&gt;"); break;
- case '\"': sb.append("&quot;"); break;
- case '\'': sb.append("&#039;"); break;
- case '&': sb.append("&amp;"); break;
- default: sb.append(c);
- }
- }
- return sb.toString();
- }
-
- public static String getUserAgent(Context context) {
- PackageInfo packageInfo;
- try {
- packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
- } catch (NameNotFoundException e) {
- throw new IllegalStateException("getPackageInfo failed");
- }
- return String.format("%s/%s; %s/%s/%s/%s; %s/%s/%s",
- packageInfo.packageName,
- packageInfo.versionName,
- Build.BRAND,
- Build.DEVICE,
- Build.MODEL,
- Build.ID,
- Build.VERSION.SDK_INT,
- Build.VERSION.RELEASE,
- Build.VERSION.INCREMENTAL);
- }
-
- public static String[] copyOf(String[] source, int newSize) {
- String[] result = new String[newSize];
- newSize = Math.min(source.length, newSize);
- System.arraycopy(source, 0, result, 0, newSize);
- return result;
- }
-
- // Mask information for debugging only. It returns <code>info.toString()</code> directly
- // for debugging build (i.e., 'eng' and 'userdebug') and returns a mask ("****")
- // in release build to protect the information (e.g. for privacy issue).
- public static String maskDebugInfo(Object info) {
- if (info == null) return null;
- String s = info.toString();
- int length = Math.min(s.length(), MASK_STRING.length());
- return IS_DEBUG_BUILD ? s : MASK_STRING.substring(0, length);
- }
-
- // This method should be ONLY used for debugging.
- public static void debug(String message, Object ... args) {
- Log.v(DEBUG_TAG, String.format(message, args));
- }
-} \ No newline at end of file