/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.graphics;
public class PixelFormat
{
/* these constants need to match those
in ui/PixelFormat.h & pixelflinger/format.h */
public static final int UNKNOWN = 0;
/** System chooses a format that supports translucency (many alpha bits) */
public static final int TRANSLUCENT = -3;
/**
* System chooses a format that supports transparency
* (at least 1 alpha bit)
*/
public static final int TRANSPARENT = -2;
/** System chooses an opaque format (no alpha bits required) */
public static final int OPAQUE = -1;
public static final int RGBA_8888 = 1;
public static final int RGBX_8888 = 2;
public static final int RGB_888 = 3;
public static final int RGB_565 = 4;
public static final int RGBA_5551 = 6;
public static final int RGBA_4444 = 7;
public static final int A_8 = 8;
public static final int L_8 = 9;
public static final int LA_88 = 0xA;
public static final int RGB_332 = 0xB;
/**
* YCbCr formats, used for video. These are not necessarily supported
* by the hardware.
*/
public static final int YCbCr_422_SP= 0x10;
public static final int YCbCr_420_SP= 0x11;
/**
* Encoded formats. These are not necessarily supported by the hardware.
*/
public static final int JPEG = 0x100;
/*
* We use a class initializer to allow the native code to cache some
* field offsets.
*/
native private static void nativeClassInit();
static { nativeClassInit(); }
public static native void getPixelFormatInfo(int format, PixelFormat info);
public static boolean formatHasAlpha(int format) {
switch (format) {
case PixelFormat.A_8:
case PixelFormat.LA_88:
case PixelFormat.RGBA_4444:
case PixelFormat.RGBA_5551:
case PixelFormat.RGBA_8888:
case PixelFormat.TRANSLUCENT:
case PixelFormat.TRANSPARENT:
return true;
}
return false;
}
public int bytesPerPixel;
public int bitsPerPixel;
}