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/*
* 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 hardware/hardware.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;
@Deprecated
public static final int RGBA_5551 = 6;
@Deprecated
public static final int RGBA_4444 = 7;
@Deprecated
public static final int A_8 = 8;
@Deprecated
public static final int L_8 = 9;
@Deprecated
public static final int LA_88 = 0xA;
@Deprecated
public static final int RGB_332 = 0xB;
/**
* @deprecated use {@link android.graphics.ImageFormat#NV16
* ImageFormat.NV16} instead.
*/
@Deprecated
public static final int YCbCr_422_SP= 0x10;
/**
* @deprecated use {@link android.graphics.ImageFormat#NV21
* ImageFormat.NV21} instead.
*/
@Deprecated
public static final int YCbCr_420_SP= 0x11;
/**
* @deprecated use {@link android.graphics.ImageFormat#YUY2
* ImageFormat.YUY2} instead.
*/
@Deprecated
public static final int YCbCr_422_I = 0x14;
/**
* @deprecated use {@link android.graphics.ImageFormat#JPEG
* ImageFormat.JPEG} instead.
*/
@Deprecated
public static final int JPEG = 0x100;
public static void getPixelFormatInfo(int format, PixelFormat info) {
switch (format) {
case RGBA_8888:
case RGBX_8888:
info.bitsPerPixel = 32;
info.bytesPerPixel = 4;
break;
case RGB_888:
info.bitsPerPixel = 24;
info.bytesPerPixel = 3;
break;
case RGB_565:
case RGBA_5551:
case RGBA_4444:
case LA_88:
info.bitsPerPixel = 16;
info.bytesPerPixel = 2;
break;
case A_8:
case L_8:
case RGB_332:
info.bitsPerPixel = 8;
info.bytesPerPixel = 1;
break;
case YCbCr_422_SP:
case YCbCr_422_I:
info.bitsPerPixel = 16;
info.bytesPerPixel = 1;
break;
case YCbCr_420_SP:
info.bitsPerPixel = 12;
info.bytesPerPixel = 1;
break;
default:
throw new IllegalArgumentException("unknown pixel format " + format);
}
}
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;
/**
* Determine whether or not this is a public-visible and non-deprecated {@code format}.
*
* <p>In particular, {@code @hide} formats will return {@code false}.</p>
*
* <p>Any other indirect formats (such as {@code TRANSPARENT} or {@code TRANSLUCENT})
* will return {@code false}.</p>
*
* @param format an integer format
* @return a boolean
*
* @hide
*/
public static boolean isPublicFormat(int format) {
switch (format) {
case RGBA_8888:
case RGBX_8888:
case RGB_888:
case RGB_565:
return true;
}
return false;
}
}
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