The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/gfx/BufferedCairoImage.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,69 @@
     1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +package org.mozilla.gecko.gfx;
    1.10 +
    1.11 +import org.mozilla.gecko.mozglue.DirectBufferAllocator;
    1.12 +
    1.13 +import android.graphics.Bitmap;
    1.14 +import android.util.Log;
    1.15 +
    1.16 +import java.nio.ByteBuffer;
    1.17 +
    1.18 +/** A Cairo image that simply saves a buffer of pixel data. */
    1.19 +public class BufferedCairoImage extends CairoImage {
    1.20 +    private ByteBuffer mBuffer;
    1.21 +    private IntSize mSize;
    1.22 +    private int mFormat;
    1.23 +
    1.24 +    private static String LOGTAG = "GeckoBufferedCairoImage";
    1.25 +
    1.26 +    /** Creates a buffered Cairo image from a byte buffer. */
    1.27 +    public BufferedCairoImage(ByteBuffer inBuffer, int inWidth, int inHeight, int inFormat) {
    1.28 +        setBuffer(inBuffer, inWidth, inHeight, inFormat);
    1.29 +    }
    1.30 +
    1.31 +    /** Creates a buffered Cairo image from an Android bitmap. */
    1.32 +    public BufferedCairoImage(Bitmap bitmap) {
    1.33 +        setBitmap(bitmap);
    1.34 +    }
    1.35 +
    1.36 +    private synchronized void freeBuffer() {
    1.37 +        mBuffer = DirectBufferAllocator.free(mBuffer);
    1.38 +    }
    1.39 +
    1.40 +    @Override
    1.41 +    public void destroy() {
    1.42 +        try {
    1.43 +            freeBuffer();
    1.44 +        } catch (Exception ex) {
    1.45 +            Log.e(LOGTAG, "error clearing buffer: ", ex);
    1.46 +        }
    1.47 +    }
    1.48 +
    1.49 +    @Override
    1.50 +    public ByteBuffer getBuffer() { return mBuffer; }
    1.51 +    @Override
    1.52 +    public IntSize getSize() { return mSize; }
    1.53 +    @Override
    1.54 +    public int getFormat() { return mFormat; }
    1.55 +
    1.56 +
    1.57 +    public void setBuffer(ByteBuffer buffer, int width, int height, int format) {
    1.58 +        freeBuffer();
    1.59 +        mBuffer = buffer;
    1.60 +        mSize = new IntSize(width, height);
    1.61 +        mFormat = format;
    1.62 +    }
    1.63 +
    1.64 +    public void setBitmap(Bitmap bitmap) {
    1.65 +        mFormat = CairoUtils.bitmapConfigToCairoFormat(bitmap.getConfig());
    1.66 +        mSize = new IntSize(bitmap.getWidth(), bitmap.getHeight());
    1.67 +
    1.68 +        int bpp = CairoUtils.bitsPerPixelForCairoFormat(mFormat);
    1.69 +        mBuffer = DirectBufferAllocator.allocate(mSize.getArea() * bpp);
    1.70 +        bitmap.copyPixelsToBuffer(mBuffer.asIntBuffer());
    1.71 +    }
    1.72 +}