mobile/android/base/gfx/CairoUtils.java@b8a032363ba2 (annotated)
mobile/android/base/gfx/CairoUtils.java
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | package org.mozilla.gecko.gfx; |
| michael@0 | 7 | |
| michael@0 | 8 | import android.graphics.Bitmap; |
| michael@0 | 9 | |
| michael@0 | 10 | /** |
| michael@0 | 11 | * Utility methods useful when displaying Cairo bitmaps using OpenGL ES. |
| michael@0 | 12 | */ |
| michael@0 | 13 | public class CairoUtils { |
| michael@0 | 14 | private CairoUtils() { /* Don't call me. */ } |
| michael@0 | 15 | |
| michael@0 | 16 | public static int bitsPerPixelForCairoFormat(int cairoFormat) { |
| michael@0 | 17 | switch (cairoFormat) { |
| michael@0 | 18 | case CairoImage.FORMAT_A1: return 1; |
| michael@0 | 19 | case CairoImage.FORMAT_A8: return 8; |
| michael@0 | 20 | case CairoImage.FORMAT_RGB16_565: return 16; |
| michael@0 | 21 | case CairoImage.FORMAT_RGB24: return 24; |
| michael@0 | 22 | case CairoImage.FORMAT_ARGB32: return 32; |
| michael@0 | 23 | default: |
| michael@0 | 24 | throw new RuntimeException("Unknown Cairo format"); |
| michael@0 | 25 | } |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | public static int bitmapConfigToCairoFormat(Bitmap.Config config) { |
| michael@0 | 29 | if (config == null) |
| michael@0 | 30 | return CairoImage.FORMAT_ARGB32; /* Droid Pro fix. */ |
| michael@0 | 31 | |
| michael@0 | 32 | switch (config) { |
| michael@0 | 33 | case ALPHA_8: return CairoImage.FORMAT_A8; |
| michael@0 | 34 | case ARGB_4444: throw new RuntimeException("ARGB_444 unsupported"); |
| michael@0 | 35 | case ARGB_8888: return CairoImage.FORMAT_ARGB32; |
| michael@0 | 36 | case RGB_565: return CairoImage.FORMAT_RGB16_565; |
| michael@0 | 37 | default: throw new RuntimeException("Unknown Skia bitmap config"); |
| michael@0 | 38 | } |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | public static Bitmap.Config cairoFormatTobitmapConfig(int format) { |
| michael@0 | 42 | switch (format) { |
| michael@0 | 43 | case CairoImage.FORMAT_A8: return Bitmap.Config.ALPHA_8; |
| michael@0 | 44 | case CairoImage.FORMAT_ARGB32: return Bitmap.Config.ARGB_8888; |
| michael@0 | 45 | case CairoImage.FORMAT_RGB16_565: return Bitmap.Config.RGB_565; |
| michael@0 | 46 | default: |
| michael@0 | 47 | throw new RuntimeException("Unknown CairoImage format"); |
| michael@0 | 48 | } |
| michael@0 | 49 | } |
| michael@0 | 50 | } |
| michael@0 | 51 |
