// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS.  All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.


/*

File: PixelUtilities.h, part of ExampleIPBCodec

Abstract: Utilities for converting between chunky YUV 4:2:2 and planar YUV 4:2:0.

Version: 1.0

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#ifndef PIXELUTILITIES_H
#define PIXELUTILITIES_H

#include <QuickTime/QuickTime.h>

// Our YUV 4:2:2 format, known as k422YpCbCr8CodecType or '2vuy', is ordered Y0, Cb, Y1, Cr.
// These utilities convert between it and a simple planar YUV 4:2:0.
// These utilities assume that width and height are both multiples of 2.

extern OSStatus CopyChunkyYUV422ToPlanarYUV420(
    size_t width,
    size_t height,
    const unsigned char *baseAddr_2vuy,
    int rowBytes_2vuy,
    unsigned char *baseAddr_y,
    int rowBytes_y,
    unsigned char *baseAddr_u,
    int rowBytes_u,
    unsigned char *baseAddr_v,
    int rowBytes_v);

extern OSStatus CopyPlanarYUV420ToChunkyYUV422(
    size_t width,
    size_t height,
    const UInt8 *baseAddr_y,
    size_t rowBytes_y,
    const UInt8 *baseAddr_u,
    size_t rowBytes_u,
    const UInt8 *baseAddr_v,
    size_t rowBytes_v,
    UInt8 *baseAddr_2vuy,
    size_t rowBytes_2vuy);


extern OSStatus DebugAllBlackYV12(
    size_t width,
    size_t height,
    const unsigned char *baseAddr_2vuy,
    int rowBytes_2vuy,
    unsigned char *baseAddr_y,
    int rowBytes_yv12);


extern OSStatus CopyChunkyYUV422ToPlanarYV12(
    size_t width,
    size_t height,
    const unsigned char *baseAddr_2vuy,
    int rowBytes_2vuy,
    unsigned char *baseAddr_y,
    int rowBytes_y,
    unsigned char *baseAddr_u,
    int rowBytes_u,
    unsigned char *baseAddr_v,
    int rowBytes_v);

extern OSStatus CopyPlanarYV12ToChunkyYUV422(
    size_t width,
    size_t height,
    UInt8 *baseAddr_y,
    size_t rowBytes_y,
    UInt8 *baseAddr_u,
    size_t rowBytes_u,
    UInt8 *baseAddr_v,
    size_t rowBytes_v,
    UInt8 *baseAddr_2vuy,
    size_t rowBytes_2vuy);
#endif // PIXELUTILITIES_H