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86 lines
3.5 KiB
Java
86 lines
3.5 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Patrick Walton <pcwalton@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko.gfx;
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import org.mozilla.gecko.gfx.CairoImage;
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import android.graphics.Bitmap;
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import javax.microedition.khronos.opengles.GL10;
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/**
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* Utility methods useful when displaying Cairo bitmaps using OpenGL ES.
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*/
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public class CairoUtils {
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private CairoUtils() { /* Don't call me. */ }
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public static int bitsPerPixelForCairoFormat(int cairoFormat) {
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switch (cairoFormat) {
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case CairoImage.FORMAT_A1: return 1;
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case CairoImage.FORMAT_A8: return 8;
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case CairoImage.FORMAT_RGB16_565: return 16;
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case CairoImage.FORMAT_RGB24: return 24;
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case CairoImage.FORMAT_ARGB32: return 32;
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default:
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throw new RuntimeException("Unknown Cairo format");
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}
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}
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public static int bitmapConfigToCairoFormat(Bitmap.Config config) {
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if (config == null)
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return CairoImage.FORMAT_ARGB32; /* Droid Pro fix. */
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switch (config) {
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case ALPHA_8: return CairoImage.FORMAT_A8;
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case ARGB_4444: throw new RuntimeException("ARGB_444 unsupported");
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case ARGB_8888: return CairoImage.FORMAT_ARGB32;
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case RGB_565: return CairoImage.FORMAT_RGB16_565;
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default: throw new RuntimeException("Unknown Skia bitmap config");
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}
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}
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public static Bitmap.Config cairoFormatTobitmapConfig(int format) {
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switch (format) {
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case CairoImage.FORMAT_A8: return Bitmap.Config.ALPHA_8;
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case CairoImage.FORMAT_ARGB32: return Bitmap.Config.ARGB_8888;
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case CairoImage.FORMAT_RGB16_565: return Bitmap.Config.RGB_565;
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default:
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throw new RuntimeException("Unknown CairoImage format");
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}
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}
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}
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