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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QVIDEOFRAMECONVERSIONHELPER_P_H
#define QVIDEOFRAMECONVERSIONHELPER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qvideoframe.h>
#include <private/qsimd_p.h>
QT_BEGIN_NAMESPACE
// Converts to RGB32 or ARGB32_Premultiplied
typedef void (QT_FASTCALL *VideoFrameConvertFunc)(const QVideoFrame &frame, uchar *output);
typedef void(QT_FASTCALL *PixelsCopyFunc)(uint32_t *dst, const uint32_t *src, size_t size, uint32_t mask);
VideoFrameConvertFunc qConverterForFormat(QVideoFrameFormat::PixelFormat format);
void Q_MULTIMEDIA_EXPORT qCopyPixelsWithAlphaMask(uint32_t *dst,
const uint32_t *src,
size_t size,
QVideoFrameFormat::PixelFormat format,
bool srcAlphaVaries);
void Q_MULTIMEDIA_EXPORT qCopyPixelsWithMask(uint32_t *dst, const uint32_t *src, size_t size, uint32_t mask);
uint32_t Q_MULTIMEDIA_EXPORT qAlphaMask(QVideoFrameFormat::PixelFormat format);
template<int a, int r, int g, int b>
struct ArgbPixel
{
quint32 data;
inline quint32 convert() const
{
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
return (((data >> (8*a)) & 0xff) << 24)
| (((data >> (8*r)) & 0xff) << 16)
| (((data >> (8*g)) & 0xff) << 8)
| ((data >> (8*b)) & 0xff);
#else
return (((data >> (32-8*a)) & 0xff) << 24)
| (((data >> (32-8*r)) & 0xff) << 16)
| (((data >> (32-8*g)) & 0xff) << 8)
| ((data >> (32-8*b)) & 0xff);
#endif
}
};
template<int r, int g, int b>
struct RgbPixel
{
quint32 data;
inline quint32 convert() const
{
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
return 0xff000000
| (((data >> (8*r)) & 0xff) << 16)
| (((data >> (8*g)) & 0xff) << 8)
| ((data >> (8*b)) & 0xff);
#else
return 0xff000000
| (((data >> (32-8*r)) & 0xff) << 16)
| (((data >> (32-8*g)) & 0xff) << 8)
| ((data >> (32-8*b)) & 0xff);
#endif
}
};
template<typename Y>
struct YPixel
{
Y data;
static constexpr uint shift = (sizeof(Y) - 1)*8;
inline quint32 convert() const
{
uint y = (data >> shift) & 0xff;
return (0xff000000)
| (y << 16)
| (y << 8)
| (y);
}
};
using ARGB8888 = ArgbPixel<0, 1, 2, 3>;
using ABGR8888 = ArgbPixel<0, 3, 2, 1>;
using RGBA8888 = ArgbPixel<3, 0, 1, 2>;
using BGRA8888 = ArgbPixel<3, 2, 1, 0>;
using XRGB8888 = RgbPixel<1, 2, 3>;
using XBGR8888 = RgbPixel<3, 2, 1>;
using RGBX8888 = RgbPixel<0, 1, 2>;
using BGRX8888 = RgbPixel<2, 1, 0>;
#define FETCH_INFO_PACKED(frame) \
const uchar *src = frame.bits(0); \
int stride = frame.bytesPerLine(0); \
int width = frame.width(); \
int height = frame.height();
#define FETCH_INFO_BIPLANAR(frame) \
const uchar *plane1 = frame.bits(0); \
const uchar *plane2 = frame.bits(1); \
int plane1Stride = frame.bytesPerLine(0); \
int plane2Stride = frame.bytesPerLine(1); \
int width = frame.width(); \
int height = frame.height();
#define FETCH_INFO_TRIPLANAR(frame) \
const uchar *plane1 = frame.bits(0); \
const uchar *plane2 = frame.bits(1); \
const uchar *plane3 = frame.bits(2); \
int plane1Stride = frame.bytesPerLine(0); \
int plane2Stride = frame.bytesPerLine(1); \
int plane3Stride = frame.bytesPerLine(2); \
int width = frame.width(); \
int height = frame.height(); \
#define MERGE_LOOPS(width, height, stride, bpp) \
if (stride == width * bpp) { \
width *= height; \
height = 1; \
stride = 0; \
}
#define QT_MEDIA_ALIGN(boundary, ptr, x, length) \
for (; ((reinterpret_cast<qintptr>(ptr) & (boundary - 1)) != 0) && x < length; ++x)
QT_END_NAMESPACE
#endif // QVIDEOFRAMECONVERSIONHELPER_P_H
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