The Tor Browser: mobile/android/base/gfx/CairoUtils.java@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 package org.mozilla.gecko.gfx;

     8 import android.graphics.Bitmap;

    10 /**

    11  * Utility methods useful when displaying Cairo bitmaps using OpenGL ES.

    12  */

    13 public class CairoUtils {

    14     private CairoUtils() { /* Don't call me. */ }

    16     public static int bitsPerPixelForCairoFormat(int cairoFormat) {

    17         switch (cairoFormat) {

    18         case CairoImage.FORMAT_A1:          return 1;

    19         case CairoImage.FORMAT_A8:          return 8;

    20         case CairoImage.FORMAT_RGB16_565:   return 16;

    21         case CairoImage.FORMAT_RGB24:       return 24;

    22         case CairoImage.FORMAT_ARGB32:      return 32;

    23         default:

    24             throw new RuntimeException("Unknown Cairo format");

    25         }

    26     }

    28     public static int bitmapConfigToCairoFormat(Bitmap.Config config) {

    29         if (config == null)

    30             return CairoImage.FORMAT_ARGB32;    /* Droid Pro fix. */

    32         switch (config) {

    33         case ALPHA_8:   return CairoImage.FORMAT_A8;

    34         case ARGB_4444: throw new RuntimeException("ARGB_444 unsupported");

    35         case ARGB_8888: return CairoImage.FORMAT_ARGB32;

    36         case RGB_565:   return CairoImage.FORMAT_RGB16_565;

    37         default:        throw new RuntimeException("Unknown Skia bitmap config");

    38         }

    39     }

    41     public static Bitmap.Config cairoFormatTobitmapConfig(int format) {

    42         switch (format) {

    43         case CairoImage.FORMAT_A8:        return Bitmap.Config.ALPHA_8;

    44         case CairoImage.FORMAT_ARGB32:    return Bitmap.Config.ARGB_8888;

    45         case CairoImage.FORMAT_RGB16_565: return Bitmap.Config.RGB_565;

    46         default:

    47             throw new RuntimeException("Unknown CairoImage format");

    48         }

    49     }

    50 }

The Tor Browser / file revision