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      1 /*
      2  * Copyright (C) 2006 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.graphics;
     18 
     19 public class PixelFormat
     20 {
     21     /* these constants need to match those in hardware/hardware.h */
     22 
     23     public static final int UNKNOWN     = 0;
     24 
     25     /** System chooses a format that supports translucency (many alpha bits) */
     26     public static final int TRANSLUCENT = -3;
     27 
     28     /**
     29      * System chooses a format that supports transparency
     30      * (at least 1 alpha bit)
     31      */
     32     public static final int TRANSPARENT = -2;
     33 
     34     /** System chooses an opaque format (no alpha bits required) */
     35     public static final int OPAQUE      = -1;
     36 
     37     public static final int RGBA_8888   = 1;
     38     public static final int RGBX_8888   = 2;
     39     public static final int RGB_888     = 3;
     40     public static final int RGB_565     = 4;
     41 
     42     @Deprecated
     43     public static final int RGBA_5551   = 6;
     44     @Deprecated
     45     public static final int RGBA_4444   = 7;
     46     public static final int A_8         = 8;
     47     public static final int L_8         = 9;
     48     @Deprecated
     49     public static final int LA_88       = 0xA;
     50     @Deprecated
     51     public static final int RGB_332     = 0xB;
     52 
     53 
     54     /**
     55      * @deprecated use {@link android.graphics.ImageFormat#NV16
     56      * ImageFormat.NV16} instead.
     57      */
     58     @Deprecated
     59     public static final int YCbCr_422_SP= 0x10;
     60 
     61     /**
     62      * @deprecated use {@link android.graphics.ImageFormat#NV21
     63      * ImageFormat.NV21} instead.
     64      */
     65     @Deprecated
     66     public static final int YCbCr_420_SP= 0x11;
     67 
     68     /**
     69      * @deprecated use {@link android.graphics.ImageFormat#YUY2
     70      * ImageFormat.YUY2} instead.
     71      */
     72     @Deprecated
     73     public static final int YCbCr_422_I = 0x14;
     74 
     75     /**
     76      * @deprecated use {@link android.graphics.ImageFormat#JPEG
     77      * ImageFormat.JPEG} instead.
     78      */
     79     @Deprecated
     80     public static final int JPEG        = 0x100;
     81 
     82     /*
     83      * We use a class initializer to allow the native code to cache some
     84      * field offsets.
     85      */
     86     native private static void nativeClassInit();
     87     static { nativeClassInit(); }
     88 
     89     public static native void getPixelFormatInfo(int format, PixelFormat info);
     90     public static boolean formatHasAlpha(int format) {
     91         switch (format) {
     92             case PixelFormat.A_8:
     93             case PixelFormat.LA_88:
     94             case PixelFormat.RGBA_4444:
     95             case PixelFormat.RGBA_5551:
     96             case PixelFormat.RGBA_8888:
     97             case PixelFormat.TRANSLUCENT:
     98             case PixelFormat.TRANSPARENT:
     99                 return true;
    100         }
    101         return false;
    102     }
    103 
    104     public int  bytesPerPixel;
    105     public int  bitsPerPixel;
    106 }
    107