qquickpixmapcache.cpp File Reference

#include <QtQuick/private/qquickpixmapcache_p.h>
#include <QtQuick/private/qquickimageprovider_p.h>
#include <QtQuick/private/qquickprofiler_p.h>
#include <QtQuick/private/qsgcontext_p.h>
#include <QtQuick/private/qsgrenderer_p.h>
#include <QtQuick/private/qsgtexturereader_p.h>
#include <QtQuick/qquickwindow.h>
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/private/qimage_p.h>
#include <QtGui/qpa/qplatformintegration.h>
#include <QtGui/qimagereader.h>
#include <QtGui/qpixmapcache.h>
#include <QtQml/private/qqmlglobal_p.h>
#include <QtQml/private/qqmlengine_p.h>
#include <QtQml/qqmlfile.h>
#include <QtCore/private/qobject_p.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qhash.h>
#include <QtCore/qfile.h>
#include <QtCore/qthread.h>
#include <QtCore/qmutex.h>
#include <QtCore/qbuffer.h>
#include <QtCore/qdebug.h>
#include <QtCore/qmetaobject.h>
#include <QtCore/qscopeguard.h>
#include <qquickpixmapcache.moc>
#include "moc_qquickpixmapcache_p.cpp"

Include dependency graph for qquickpixmapcache.cpp:

Go to the source code of this file.

Classes
class	QQuickPixmapReply
class	QQuickPixmapReply::Event
class	ReaderThreadExecutionEnforcer
class	QQuickPixmapReader
class	QQuickPixmapData
class	BackendSupport
class	QQuickPixmapKey
class	QQuickPixmapStore
struct	QQuickPixmapNull

Macros
#define	IMAGEREQUEST_MAX_NETWORK_REQUEST_COUNT   8
#define	CACHE_EXPIRE_TIME   30
#define	CACHE_REMOVAL_FRACTION   4
#define	PIXMAP_PROFILE(Code)   Q_QUICK_PROFILE(QQuickProfiler::ProfilePixmapCache, Code)
#define	USE_THREADED_DOWNLOAD   0
#define	Q_THREAD_AFFINITY_MARKER(x)
#define	Q_ASSERT_CALLED_ON_VALID_THREAD(x)
#define	Q_DETACH_THREAD_AFFINITY_MARKER(x)
#define	PIXMAP_READER_LOCK()

Functions
static QString	imageProviderId (const QUrl &url)
static QString	imageId (const QUrl &url)
static void	maybeRemoveAlpha (QImage *image)
static bool	readImage (const QUrl &url, QIODevice *dev, QImage *image, QString *errorString, QSize *impsize, int *frameCount, const QRect &requestRegion, const QSize &requestSize, const QQuickImageProviderOptions &providerOptions, QQuickImageProviderOptions::AutoTransform *appliedTransform=nullptr, int frame=0, qreal devicePixelRatio=1.0)
static QStringList	fromLatin1List (const QList< QByteArray > &list)
	Q_GLOBAL_STATIC (BackendSupport, backendSupport)
static QString	existingImageFileForPath (const QString &localFile)
bool	operator== (const QQuickPixmapKey &lhs, const QQuickPixmapKey &rhs)
size_t	qHash (const QQuickPixmapKey &key, size_t seed) noexcept
	Q_GLOBAL_STATIC (QQuickPixmapStore, pixmapStore)
static QQuickPixmapData *	createPixmapDataSync (QQuickPixmap *declarativePixmap, QQmlEngine *engine, const QUrl &url, const QRect &requestRegion, const QSize &requestSize, const QQuickImageProviderOptions &providerOptions, int frame, bool *ok, qreal devicePixelRatio)
	Q_GLOBAL_STATIC (QQuickPixmapNull, nullPixmap)

Variables
static int	cache_limit = 2048 * 1024

Macro Definition Documentation

CACHE_EXPIRE_TIME

#define CACHE_EXPIRE_TIME   30

Definition at line 40 of file qquickpixmapcache.cpp.

CACHE_REMOVAL_FRACTION

#define CACHE_REMOVAL_FRACTION   4

Definition at line 41 of file qquickpixmapcache.cpp.

IMAGEREQUEST_MAX_NETWORK_REQUEST_COUNT

#define IMAGEREQUEST_MAX_NETWORK_REQUEST_COUNT   8

Definition at line 39 of file qquickpixmapcache.cpp.

PIXMAP_PROFILE

#define PIXMAP_PROFILE

(

Code

)

Q_QUICK_PROFILE(QQuickProfiler::ProfilePixmapCache, Code)

Definition at line 43 of file qquickpixmapcache.cpp.

PIXMAP_READER_LOCK

#define PIXMAP_READER_LOCK

(

)

Definition at line 278 of file qquickpixmapcache.cpp.

Q_ASSERT_CALLED_ON_VALID_THREAD

#define Q_ASSERT_CALLED_ON_VALID_THREAD

(

x

)

Definition at line 85 of file qquickpixmapcache.cpp.

Q_DETACH_THREAD_AFFINITY_MARKER

#define Q_DETACH_THREAD_AFFINITY_MARKER

(

x

)

Definition at line 86 of file qquickpixmapcache.cpp.

Q_THREAD_AFFINITY_MARKER

#define Q_THREAD_AFFINITY_MARKER

(

x

)

Definition at line 84 of file qquickpixmapcache.cpp.

USE_THREADED_DOWNLOAD

#define USE_THREADED_DOWNLOAD   0

Definition at line 48 of file qquickpixmapcache.cpp.

Function Documentation

createPixmapDataSync()

static QQuickPixmapData * createPixmapDataSync ( QQuickPixmap *  declarativePixmap, QQmlEngine *  engine, const QUrl &  url, const QRect &  requestRegion, const QSize &  requestSize, const QQuickImageProviderOptions &  providerOptions, int  frame, bool *  ok, qreal  devicePixelRatio  )

static

Definition at line 1460 of file qquickpixmapcache.cpp.

References QString::arg(), arg, QQuickImageProviderOptions::autoTransform(), QQuickImageProviderWithOptions::checkedCast(), engine, existingImageFileForPath(), factory, frame, QString::fromLatin1(), QSharedPointer< T >::get(), QQmlEnginePrivate::get(), QQmlImageProviderBase::Image, imageId(), QQmlEnginePrivate::imageProvider(), imageProviderId(), QQmlImageProviderBase::ImageResponse, QQmlImageProviderBase::Invalid, QString::isEmpty(), QSGTextureReader::isTexture(), ok, pixmap, QQmlImageProviderBase::Pixmap, Q_ASSERT, QSGTextureReader::read(), readImage(), QIODeviceBase::ReadOnly, QUrl::scheme(), QQmlImageProviderBase::Texture, QQuickTextureFactory::textureFactoryForImage(), QUrl::toString(), url, QQmlFile::urlToLocalFileOrQrc(), and QQuickImageProviderOptions::UsePluginDefaultTransform.

Referenced by QQuickPixmap::load().

Here is the call graph for this function:

Here is the caller graph for this function:

existingImageFileForPath()

static QString existingImageFileForPath ( const QString &  localFile )

static

Definition at line 540 of file qquickpixmapcache.cpp.

References QFileInfo::exists(), fi, QString::isEmpty(), QStringLiteral, QString::replace(), QString::size(), and QFileInfo::suffix().

Referenced by createPixmapDataSync().

Here is the call graph for this function:

Here is the caller graph for this function:

fromLatin1List()

static QStringList fromLatin1List ( const QList< QByteArray > &  list )

static

Definition at line 513 of file qquickpixmapcache.cpp.

References QString::fromLatin1(), item, list, and QList< T >::size().

Referenced by BackendSupport::BackendSupport().

Here is the call graph for this function:

Here is the caller graph for this function:

imageId()

static QString imageId ( const QUrl &  url )

inlinestatic

Definition at line 101 of file qquickpixmapcache.cpp.

References QString::mid(), QUrl::RemoveAuthority, QUrl::RemoveScheme, QUrl::toString(), and url.

Referenced by createPixmapDataSync().

Here is the call graph for this function:

Here is the caller graph for this function:

imageProviderId()

static QString imageProviderId ( const QUrl &  url )

inlinestatic

Definition at line 96 of file qquickpixmapcache.cpp.

References QUrl::host(), and url.

Referenced by createPixmapDataSync(), and QQuickPixmap::load().

Here is the call graph for this function:

Here is the caller graph for this function:

maybeRemoveAlpha()

static void maybeRemoveAlpha ( QImage *  image )

static

Definition at line 430 of file qquickpixmapcache.cpp.

References Qt::AutoColor, QImage::Format_A2BGR30_Premultiplied, QImage::Format_A2RGB30_Premultiplied, QImage::Format_BGR30, QImage::Format_RGB30, QImage::Format_RGB32, QImage::Format_RGBA8888, QImage::Format_RGBA8888_Premultiplied, and QImage::Format_RGBX8888.

Referenced by readImage().

Here is the caller graph for this function:

operator==()

bool operator== ( const QQuickPixmapKey &  lhs, const QQuickPixmapKey &  rhs  )

inline

Definition at line 1158 of file qquickpixmapcache.cpp.

References QQuickPixmapKey::frame, QQuickPixmapKey::options, QQuickPixmapKey::region, QQuickPixmapKey::size, and QQuickPixmapKey::url.

Q_GLOBAL_STATIC() [1/3]

Q_GLOBAL_STATIC	(	BackendSupport	,
		backendSupport
	)

Q_GLOBAL_STATIC() [2/3]

Q_GLOBAL_STATIC	(	QQuickPixmapNull	,
		nullPixmap
	)

Q_GLOBAL_STATIC() [3/3]

Q_GLOBAL_STATIC	(	QQuickPixmapStore	,
		pixmapStore
	)

qHash()

size_t qHash ( const QQuickPixmapKey &  key, size_t  seed  )

inlinenoexcept

Definition at line 1167 of file qquickpixmapcache.cpp.

References qHashMulti(), and seed.

Here is the call graph for this function:

readImage()

static bool readImage ( const QUrl &  url, QIODevice *  dev, QImage *  image, QString *  errorString, QSize *  impsize, int *  frameCount, const QRect &  requestRegion, const QSize &  requestSize, const QQuickImageProviderOptions &  providerOptions, QQuickImageProviderOptions::AutoTransform *  appliedTransform = nullptr, int  frame = 0, qreal  devicePixelRatio = 1.0  )

static

Definition at line 465 of file qquickpixmapcache.cpp.

References QQuickImageProviderOptions::ApplyTransform, QString::arg(), QImageReader::autoTransform(), QQuickImageProviderOptions::autoTransform(), QQuickImageProviderOptions::DoNotApplyTransform, QImageReader::errorString(), QImageReader::format(), frame, QImageReader::imageCount(), QRect::isNull(), QSize::isValid(), QColorSpace::isValid(), QImageReader::jumpToImage(), QQuickImageProviderWithOptions::loadSize(), maybeRemoveAlpha(), QQuickPixmapReply::providerOptions, qCDebug, QImageReader::read(), QQuickPixmapReply::requestRegion, QQuickPixmapReply::requestSize, QImageReader::setAutoTransform(), QImageReader::setScaledClipRect(), QImageReader::setScaledSize(), QImageReader::size(), QQuickImageProviderOptions::targetColorSpace(), QUrl::toString(), QQuickPixmapReply::url, QQuickImageProviderOptions::UsePluginDefaultTransform, and QSize::width().

Referenced by createPixmapDataSync().

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

cache_limit

int cache_limit = 2048 * 1024

static

Definition at line 94 of file qquickpixmapcache.cpp.