Qt: QImageData Struct Reference

Qt 6.x

The Qt SDK

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#include <qimage_p.h>

Collaboration diagram for QImageData:

Classes
struct	ImageSizeParameters

Public Member Functions
	QImageData ()

	~QImageData ()

bool	checkForAlphaPixels () const

bool	convertInPlace (QImage::Format newFormat, Qt::ImageConversionFlags)

bool	doImageIO (const QImage image, QImageWriter io, int quality) const

Static Public Member Functions
static QImageData *	create (const QSize &size, QImage::Format format)

static QImageData *	create (uchar data, int w, int h, qsizetype bpl, QImage::Format format, bool readOnly, QImageCleanupFunction cleanupFunction=nullptr, void cleanupInfo=nullptr)

static QImageData *	get (QImage &img) noexcept

static const QImageData *	get (const QImage &img) noexcept

static ImageSizeParameters	calculateImageParameters (qsizetype width, qsizetype height, qsizetype depth)

Public Attributes
QAtomicInt	ref

int	width

int	height

int	depth

qsizetype	nbytes

qreal	devicePixelRatio

QList< QRgb >	colortable

uchar *	data

QImage::Format	format

qsizetype	bytes_per_line

int	ser_no

int	detach_no

qreal	dpmx

qreal	dpmy

QPoint	offset

uint	own_data: 1

uint	ro_data: 1

uint	has_alpha_clut: 1

uint	is_cached: 1

QImageCleanupFunction	cleanupFunction

void *	cleanupInfo

QMap< QString, QString >	text

QPaintEngine *	paintEngine

QColorSpace	colorSpace

Detailed Description

Definition at line 29 of file qimage_p.h.

Constructor & Destructor Documentation

◆ QImageData()

QImageData::QImageData ( )

Definition at line 89 of file qimage.cpp.

Referenced by create().

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◆ ~QImageData()

QImageData::~QImageData ( )

Definition at line 154 of file qimage.cpp.

References cleanupFunction, cleanupInfo, detach_no, QImagePixmapCleanupHooks::executeImageHooks(), is_cached, own_data, paintEngine, and ser_no.

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Member Function Documentation

◆ calculateImageParameters()

QImageData::ImageSizeParameters QImageData::calculateImageParameters	(	qsizetype	width,
		qsizetype	height,
		qsizetype	depth
	)

inlinestatic

Definition at line 87 of file qimage_p.h.

References bytes_per_line, depth, qAddOverflow(), and qMulOverflow().

Referenced by QImageIOHandler::allocateImage(), convert_generic_inplace(), convert_generic_inplace_over_rgb64(), and create().

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◆ checkForAlphaPixels()

bool QImageData::checkForAlphaPixels ( ) const

Definition at line 170 of file qimage.cpp.

References bytes_per_line, data, QImage::Format_A2BGR30_Premultiplied, QImage::Format_A2RGB30_Premultiplied, QImage::Format_Alpha8, QImage::Format_ARGB32, QImage::Format_ARGB32_Premultiplied, QImage::Format_ARGB4444_Premultiplied, QImage::Format_ARGB6666_Premultiplied, QImage::Format_ARGB8555_Premultiplied, QImage::Format_ARGB8565_Premultiplied, QImage::Format_BGR30, QImage::Format_BGR888, QImage::Format_Grayscale16, QImage::Format_Grayscale8, QImage::Format_Indexed8, QImage::Format_Invalid, QImage::Format_Mono, QImage::Format_MonoLSB, QImage::Format_RGB16, QImage::Format_RGB30, QImage::Format_RGB32, QImage::Format_RGB444, QImage::Format_RGB555, QImage::Format_RGB666, QImage::Format_RGB888, QImage::Format_RGBA16FPx4, QImage::Format_RGBA16FPx4_Premultiplied, QImage::Format_RGBA32FPx4, QImage::Format_RGBA32FPx4_Premultiplied, QImage::Format_RGBA64, QImage::Format_RGBA64_Premultiplied, QImage::Format_RGBA8888, QImage::Format_RGBA8888_Premultiplied, QImage::Format_RGBX16FPx4, QImage::Format_RGBX32FPx4, QImage::Format_RGBX64, QImage::Format_RGBX8888, has_alpha_clut, QImage::NImageFormats, and width.

Referenced by QRasterPlatformPixmap::createPixmapForImage().

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◆ convertInPlace()

bool QImageData::convertInPlace	(	QImage::Format	newFormat,
		Qt::ImageConversionFlags	flags
	)

Definition at line 5183 of file qimage.cpp.

References convert_generic_inplace(), convert_generic_inplace_over_rgb64(), format, QImage::Format_Indexed8, own_data, qimage_converter_map, qimage_inplace_converter_map, qPixelLayouts, qt_fpColorPrecision(), and qt_highColorPrecision().

Referenced by QImage::convertToFormat_inplace(), and QImage::invertPixels().

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◆ create() [1/2]

QImageData * QImageData::create	(	const QSize &	size,
		QImage::Format	format
	)

static

Creates a new image data. Returns \nullptr if invalid parameters are give or anything else failed.

Referenced by QImage::QImage(), QImage::QImage(), QImage::QImage(), QImage::QImage(), QImage::QImage(), convert_ARGB_PM_to_Indexed8(), convert_ARGB_PM_to_Mono(), and convert_RGB_to_Indexed8().

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◆ create() [2/2]

QImageData * QImageData::create	(	uchar *	data,
		int	w,
		int	h,
		qsizetype	bpl,
		QImage::Format	format,
		bool	readOnly,
		QImageCleanupFunction	cleanupFunction = `nullptr`,
		void *	cleanupInfo = `nullptr`
	)

static

Definition at line 804 of file qimage.cpp.

References QImageData(), calculateImageParameters(), cleanupFunction, cleanupInfo, d, data, depth, format, height, QImage::NImageFormats, qt_depthForFormat(), and width.

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◆ doImageIO()

bool QImageData::doImageIO	(	const QImage *	image,
		QImageWriter *	io,
		int	quality
	)		const

Definition at line 3900 of file qimage.cpp.

References QImageWriter::errorString(), qMin(), qPrintable, qWarning, QImageWriter::setQuality(), and QImageWriter::write().

Referenced by QImage::save(), and QImage::save().

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◆ get() [1/2]

static const QImageData * QImageData::get ( const QImage & img )

inlinestaticnoexcept

Definition at line 36 of file qimage_p.h.

◆ get() [2/2]

static QImageData * QImageData::get ( QImage & img )

inlinestaticnoexcept

Definition at line 35 of file qimage_p.h.

Referenced by convertWithPalette().

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Member Data Documentation

◆ bytes_per_line

qsizetype QImageData::bytes_per_line

Definition at line 48 of file qimage_p.h.

Referenced by QImage::applyColorTransform(), QImage::bytesPerLine(), calculateImageParameters(), checkForAlphaPixels(), QImage::constScanLine(), convert_A2RGB30_PM_to_ARGB(), convert_A2RGB30_PM_to_RGB30(), convert_ARGB32_to_RGBA64(), convert_ARGB_to_A2RGB30(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_ARGB_to_RGBA(), convert_ARGB_to_RGBx(), convert_generic(), convert_generic_over_rgb64(), convert_gray16_to_RGBA64(), convert_Indexed8_to_Alpha8(), convert_Indexed8_to_Grayscale8(), convert_Indexed8_to_X32(), convert_Mono_to_Indexed8(), convert_Mono_to_X32(), convert_passthrough(), convert_RGB888_to_RGB(), convert_RGB888_to_RGB32_mips_dspr2(), convert_RGBA16FPM_to_RGBA16F(), convert_RGBA64_to_ARGB32(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), convert_RGBA64_to_RGBx64(), convert_RGBA_to_ARGB(), convert_RGBA_to_RGB(), convert_rgbswap_generic(), copy_8bit_pixels(), QImage::fill(), QImage::fill(), QImage::invertPixels(), mask_alpha_converter(), mask_alpha_converter_RGBx(), QImage::operator==(), QImage::pixel(), QImage::scanLine(), QImage::scanLine(), and swap_bit_order().

◆ cleanupFunction

QImageCleanupFunction QImageData::cleanupFunction

Definition at line 61 of file qimage_p.h.

Referenced by ~QImageData(), and create().

◆ cleanupInfo

void* QImageData::cleanupInfo

Definition at line 62 of file qimage_p.h.

Referenced by ~QImageData(), and create().

◆ colorSpace

QColorSpace QImageData::colorSpace

Definition at line 76 of file qimage_p.h.

Referenced by QImage::colorSpace(), QImage::convertedToColorSpace(), QImage::convertToColorSpace(), QImage::operator==(), and QImage::setColorSpace().

◆ colortable

QList<QRgb> QImageData::colortable

Definition at line 45 of file qimage_p.h.

Referenced by QImage::allGray(), QImage::applyColorTransform(), QImage::color(), QImage::colorTable(), convert_Alpha8_to_Indexed8(), convert_Grayscale8_to_Indexed8(), convert_Mono_to_Indexed8(), QImage::fill(), QImage::isGrayscale(), QImage::metric(), QImage::mirrored_helper(), QImage::operator==(), QImage::pixel(), QImage::setColor(), QImage::setColorCount(), QImage::setPixel(), and swap_bit_order().

◆ data

uchar* QImageData::data

Definition at line 46 of file qimage_p.h.

Referenced by QImage::applyColorTransform(), QImage::bits(), QImage::bits(), checkForAlphaPixels(), QImage::constBits(), QImage::constScanLine(), convert_A2RGB30_PM_to_ARGB(), convert_A2RGB30_PM_to_RGB30(), convert_ARGB32_to_RGBA64(), convert_ARGB_to_A2RGB30(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_ARGB_to_RGBA(), convert_ARGB_to_RGBx(), convert_generic(), convert_generic_over_rgb64(), convert_gray16_to_RGBA64(), convert_Indexed8_to_Alpha8(), convert_Indexed8_to_Grayscale8(), convert_Indexed8_to_X32(), convert_Mono_to_Indexed8(), convert_Mono_to_X32(), convert_passthrough(), convert_RGB888_to_RGB(), convert_RGB888_to_RGB32_mips_dspr2(), convert_RGBA16FPM_to_RGBA16F(), convert_RGBA64_to_ARGB32(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), convert_RGBA64_to_RGBx64(), convert_RGBA_to_ARGB(), convert_RGBA_to_RGB(), convert_rgbswap_generic(), copy_8bit_pixels(), create(), QImage::fill(), QImage::fill(), QImage::invertPixels(), mask_alpha_converter(), mask_alpha_converter_RGBx(), QImage::pixel(), QImage::scanLine(), QImage::scanLine(), and swap_bit_order().

◆ depth

int QImageData::depth

Definition at line 42 of file qimage_p.h.

Referenced by calculateImageParameters(), create(), QImage::fill(), QImage::invertPixels(), QImage::metric(), QImage::operator==(), QImage::pixelIndex(), QImage::setAlphaChannel(), and QImage::setColor().

◆ detach_no

int QImageData::detach_no

Definition at line 50 of file qimage_p.h.

Referenced by ~QImageData(), QImage::cacheKey(), QImage::detach(), and QImage::detachMetadata().

◆ devicePixelRatio

qreal QImageData::devicePixelRatio

Definition at line 44 of file qimage_p.h.

Referenced by QImage::deviceIndependentSize(), QImage::devicePixelRatio(), QImage::metric(), and QImage::setDevicePixelRatio().

◆ dpmx

qreal QImageData::dpmx

Definition at line 52 of file qimage_p.h.

Referenced by QImage::dotsPerMeterX(), QImage::metric(), and QImage::setDotsPerMeterX().

◆ dpmy

qreal QImageData::dpmy

Definition at line 53 of file qimage_p.h.

Referenced by QImage::dotsPerMeterY(), QImage::metric(), and QImage::setDotsPerMeterY().

◆ format

QImage::Format QImageData::format

Definition at line 47 of file qimage_p.h.

Referenced by QImage::allGray(), QImage::bitPlaneCount(), convert_A2RGB30_PM_to_ARGB(), convert_A2RGB30_PM_to_RGB30(), convert_Alpha8_to_Indexed8(), convert_ARGB32_to_RGBA64(), convert_ARGB_to_A2RGB30(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_ARGB_to_RGBA(), convert_ARGB_to_RGBx(), convert_generic(), convert_generic_over_rgb64(), convert_gray16_to_RGBA64(), convert_Grayscale8_to_Indexed8(), convert_Indexed8_to_Alpha8(), convert_Indexed8_to_Grayscale8(), convert_Indexed8_to_X32(), convert_Mono_to_Indexed8(), convert_Mono_to_X32(), convert_RGB888_to_RGB(), convert_RGB888_to_RGB32_mips_dspr2(), convert_RGBA16FPM_to_RGBA16F(), convert_RGBA64_to_ARGB32(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), convert_RGBA64_to_RGBx64(), convert_RGBA_to_ARGB(), convert_RGBA_to_RGB(), convertInPlace(), QImage::convertTo(), QImage::convertToFormat(), QImage::convertToFormat_helper(), create(), QImage::fill(), QImage::fill(), QImage::format(), QImage::invertPixels(), QImage::isGrayscale(), QImage::mirrored_helper(), QImage::operator==(), QImage::pixel(), QImage::pixelColor(), QImage::pixelIndex(), QImage::reinterpretAsFormat(), QImage::setAlphaChannel(), QImage::setPixel(), QImage::setPixelColor(), and swap_bit_order().

◆ has_alpha_clut

uint QImageData::has_alpha_clut

Definition at line 58 of file qimage_p.h.

Referenced by checkForAlphaPixels(), convert_Mono_to_Indexed8(), QImage::hasAlphaChannel(), QImage::mirrored_helper(), and QImage::setColor().

◆ height

int QImageData::height

Definition at line 41 of file qimage_p.h.

Referenced by QImage::allGray(), convert_A2RGB30_PM_to_ARGB(), convert_A2RGB30_PM_to_RGB30(), convert_ARGB32_to_RGBA64(), convert_ARGB_to_A2RGB30(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_ARGB_to_RGBA(), convert_ARGB_to_RGBx(), convert_gray16_to_RGBA64(), convert_Indexed8_to_X32(), convert_Mono_to_Indexed8(), convert_Mono_to_X32(), convert_passthrough(), convert_RGB888_to_RGB(), convert_RGB888_to_RGB32_mips_dspr2(), convert_RGBA16FPM_to_RGBA16F(), convert_RGBA64_to_ARGB32(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), convert_RGBA64_to_RGBx64(), convert_RGBA_to_ARGB(), convert_RGBA_to_RGB(), convert_rgbswap_generic(), QImage::convertToFormat_helper(), create(), QImage::deviceIndependentSize(), QImage::fill(), QImage::fill(), QImage::invertPixels(), mask_alpha_converter(), mask_alpha_converter_RGBx(), QImage::metric(), QImage::mirrored_helper(), QImage::mirrored_inplace(), QImage::operator==(), QImage::pixel(), swap_bit_order(), and QImage::valid().

◆ is_cached

uint QImageData::is_cached

Definition at line 59 of file qimage_p.h.

Referenced by ~QImageData(), QImage::detach(), and QImage::detachMetadata().

◆ nbytes

qsizetype QImageData::nbytes

Definition at line 43 of file qimage_p.h.

Referenced by QImage::invertPixels(), QImage::operator==(), QImage::sizeInBytes(), and swap_bit_order().

◆ offset

QPoint QImageData::offset

Definition at line 54 of file qimage_p.h.

Referenced by QImage::offset(), and QImage::setOffset().

◆ own_data

uint QImageData::own_data

Definition at line 56 of file qimage_p.h.

Referenced by ~QImageData(), convertInPlace(), and QImage::mirrored_inplace().

◆ paintEngine

QPaintEngine* QImageData::paintEngine

Definition at line 74 of file qimage_p.h.

Referenced by ~QImageData(), QImage::paintEngine(), and QImage::setAlphaChannel().

◆ ref

QAtomicInt QImageData::ref

Definition at line 38 of file qimage_p.h.

Referenced by QImage::QImage(), QImage::~QImage(), QImage::detach(), QImage::detachMetadata(), QImage::isDetached(), QImage::operator=(), and QImage::reinterpretAsFormat().

◆ ro_data

uint QImageData::ro_data

Definition at line 57 of file qimage_p.h.

Referenced by QImage::detach().

◆ ser_no

int QImageData::ser_no

Definition at line 49 of file qimage_p.h.

Referenced by ~QImageData(), and QImage::cacheKey().

◆ text

QMap<QString, QString> QImageData::text

Definition at line 70 of file qimage_p.h.

Referenced by QImage::setText(), QImage::text(), and QImage::textKeys().

◆ width

int QImageData::width

Definition at line 40 of file qimage_p.h.

Referenced by QImage::allGray(), checkForAlphaPixels(), convert_A2RGB30_PM_to_ARGB(), convert_A2RGB30_PM_to_RGB30(), convert_ARGB32_to_RGBA64(), convert_ARGB_to_A2RGB30(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_ARGB_to_RGBA(), convert_ARGB_to_RGBx(), convert_gray16_to_RGBA64(), convert_Indexed8_to_X32(), convert_Mono_to_Indexed8(), convert_Mono_to_X32(), convert_passthrough(), convert_RGB888_to_RGB(), convert_RGB888_to_RGB32_mips_dspr2(), convert_RGBA16FPM_to_RGBA16F(), convert_RGBA64_to_ARGB32(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), convert_RGBA64_to_RGBx64(), convert_RGBA_to_ARGB(), convert_RGBA_to_RGB(), convert_rgbswap_generic(), QImage::convertToFormat_helper(), create(), QImage::deviceIndependentSize(), QImage::fill(), QImage::fill(), QImage::invertPixels(), mask_alpha_converter(), mask_alpha_converter_RGBx(), QImage::metric(), QImage::mirrored_helper(), QImage::mirrored_inplace(), QImage::operator==(), QImage::pixel(), QImage::pixelColor(), QImage::pixelIndex(), swap_bit_order(), and QImage::valid().

The documentation for this struct was generated from the following files:

qtbase/src/gui/image/qimage_p.h
qtbase/src/gui/image/qimage.cpp

QImageData
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