The Tor Browser / file comparison
comparison: mobile/android/base/gfx/BufferedCairoImage.java
mobile/android/base/gfx/BufferedCairoImage.java
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ee4b8540f3e9 |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.gfx; | |
| 7 | |
| 8 import org.mozilla.gecko.mozglue.DirectBufferAllocator; | |
| 9 | |
| 10 import android.graphics.Bitmap; | |
| 11 import android.util.Log; | |
| 12 | |
| 13 import java.nio.ByteBuffer; | |
| 14 | |
| 15 /** A Cairo image that simply saves a buffer of pixel data. */ | |
| 16 public class BufferedCairoImage extends CairoImage { | |
| 17 private ByteBuffer mBuffer; | |
| 18 private IntSize mSize; | |
| 19 private int mFormat; | |
| 20 | |
| 21 private static String LOGTAG = "GeckoBufferedCairoImage"; | |
| 22 | |
| 23 /** Creates a buffered Cairo image from a byte buffer. */ | |
| 24 public BufferedCairoImage(ByteBuffer inBuffer, int inWidth, int inHeight, int inFormat) { | |
| 25 setBuffer(inBuffer, inWidth, inHeight, inFormat); | |
| 26 } | |
| 27 | |
| 28 /** Creates a buffered Cairo image from an Android bitmap. */ | |
| 29 public BufferedCairoImage(Bitmap bitmap) { | |
| 30 setBitmap(bitmap); | |
| 31 } | |
| 32 | |
| 33 private synchronized void freeBuffer() { | |
| 34 mBuffer = DirectBufferAllocator.free(mBuffer); | |
| 35 } | |
| 36 | |
| 37 @Override | |
| 38 public void destroy() { | |
| 39 try { | |
| 40 freeBuffer(); | |
| 41 } catch (Exception ex) { | |
| 42 Log.e(LOGTAG, "error clearing buffer: ", ex); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 @Override | |
| 47 public ByteBuffer getBuffer() { return mBuffer; } | |
| 48 @Override | |
| 49 public IntSize getSize() { return mSize; } | |
| 50 @Override | |
| 51 public int getFormat() { return mFormat; } | |
| 52 | |
| 53 | |
| 54 public void setBuffer(ByteBuffer buffer, int width, int height, int format) { | |
| 55 freeBuffer(); | |
| 56 mBuffer = buffer; | |
| 57 mSize = new IntSize(width, height); | |
| 58 mFormat = format; | |
| 59 } | |
| 60 | |
| 61 public void setBitmap(Bitmap bitmap) { | |
| 62 mFormat = CairoUtils.bitmapConfigToCairoFormat(bitmap.getConfig()); | |
| 63 mSize = new IntSize(bitmap.getWidth(), bitmap.getHeight()); | |
| 64 | |
| 65 int bpp = CairoUtils.bitsPerPixelForCairoFormat(mFormat); | |
| 66 mBuffer = DirectBufferAllocator.allocate(mSize.getArea() * bpp); | |
| 67 bitmap.copyPixelsToBuffer(mBuffer.asIntBuffer()); | |
| 68 } | |
| 69 } |
