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Ronald S. Bultje authored
This commit adds a pick_sb_mode() function which selects the best 32x32 superblock coding mode. Then it selects the best per-MB modes, compares the two and encodes that in the bitstream. The bitstream coding is rather simplistic right now. At the SB level, we code a bit to indicate whether this block uses SB-coding (32x32 prediction) or MB-coding (anything else), and then we follow with the actual modes. This could and should be modified in the future, but is omitted from this commit because it will likely involve reorganizing much more code rather than just adding SB coding, so it's better to let that be judged on its own merits. Gains on derf: about even, YT/HD: +0.75%, STD/HD: +1.5%. Change-Id: Iae313a7cbd8f75b3c66d04a68b991cb096eaaba6
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/******************************************************************************** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/legal**** This file is part of the QtQml module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** Commercial License Usage** Licensees holding valid commercial Qt licenses may use this file in** accordance with the commercial license agreement provided with the** Software or, alternatively, in accordance with the terms contained in** a written agreement between you and Digia. For licensing terms and** conditions see http://qt.digia.com/licensing. For further information** use the contact form at http://qt.digia.com/contact-us.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Digia gives you certain additional** rights. These rights are described in the Digia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** GNU General Public License Usage** Alternatively, this file may be used under the terms of the GNU** General Public License version 3.0 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file. Please review the following information to** ensure the GNU General Public License version 3.0 requirements will be** met: http://www.gnu.org/copyleft/gpl.html.****** $QT_END_LICENSE$******************************************************************************/#ifndef QQUICKTEXT_P_P_H#define QQUICKTEXT_P_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 "qquicktext_p.h"#include "qquickimplicitsizeitem_p_p.h"#include <QtQml/qqml.h>#include <QtGui/qabstracttextdocumentlayout.h>#include <QtGui/qtextlayout.h>#include <private/qquickstyledtext_p.h>#include <private/qlazilyallocated_p.h>QT_BEGIN_NAMESPACEclass QTextLayout;class QQuickTextDocumentWithImageResources;class Q_AUTOTEST_EXPORT QQuickTextPrivate : public QQuickImplicitSizeItemPrivate7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
{
Q_DECLARE_PUBLIC(QQuickText)
public:
QQuickTextPrivate();
~QQuickTextPrivate();
void init();
void updateBaseline(qreal baseline, qreal dy);
void updateSize();
void updateLayout();
bool determineHorizontalAlignment();
bool setHAlign(QQuickText::HAlignment, bool forceAlign = false);
void mirrorChange();
bool isLineLaidOutConnected();
void setLineGeometry(QTextLine &line, qreal lineWidth, qreal &height);
QString elidedText(qreal lineWidth, const QTextLine &line, QTextLine *nextLine = 0) const;
void elideFormats(int start, int length, int offset, QList<QTextLayout::FormatRange> *elidedFormats);
void processHoverEvent(QHoverEvent *event);
QRectF layedOutTextRect;
struct ExtraData {
ExtraData();
qreal lineHeight;
QQuickTextDocumentWithImageResources *doc;
QString activeLink;
QString hoveredLink;
int minimumPixelSize;
int minimumPointSize;
int nbActiveDownloads;
int maximumLineCount;
QQuickText::LineHeightMode lineHeightMode;
QQuickText::FontSizeMode fontSizeMode;
};
QLazilyAllocated<ExtraData> extra;
QString text;
QUrl baseUrl;
QFont font;
QFont sourceFont;
QList<QQuickStyledTextImgTag*> imgTags;
QList<QQuickStyledTextImgTag*> visibleImgTags;
QTextLayout layout;
QTextLayout *elideLayout;
QQuickTextLine *textLine;
qreal lineWidth;
QRgb color;
QRgb linkColor;
QRgb styleColor;
int lineCount;
int multilengthEos;
enum UpdateType {
UpdateNone,
UpdatePreprocess,
UpdatePaintNode
};
QQuickText::TextElideMode elideMode;
QQuickText::HAlignment hAlign;
QQuickText::VAlignment vAlign;
QQuickText::TextFormat format;
QQuickText::WrapMode wrapMode;
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QQuickText::TextStyle style;
QQuickText::RenderType renderType;
UpdateType updateType;
bool maximumLineCountValid:1;
bool updateOnComponentComplete:1;
bool richText:1;
bool styledText:1;
bool widthExceeded:1;
bool heightExceeded:1;
bool internalWidthUpdate:1;
bool requireImplicitSize:1;
bool implicitWidthValid:1;
bool implicitHeightValid:1;
bool truncated:1;
bool hAlignImplicit:1;
bool rightToLeftText:1;
bool layoutTextElided:1;
bool textHasChanged:1;
bool needToUpdateLayout:1;
bool formatModifiesFontSize:1;
static const QChar elideChar;
virtual qreal getImplicitWidth() const;
virtual qreal getImplicitHeight() const;
void ensureDoc();
QRectF setupTextLayout(qreal * const baseline);
void setupCustomLineGeometry(QTextLine &line, qreal &height, int lineOffset = 0);
bool isLinkActivatedConnected();
bool isLinkHoveredConnected();
static QString anchorAt(const QTextLayout *layout, const QPointF &mousePos);
QString anchorAt(const QPointF &pos) const;
inline qreal lineHeight() const { return extra.isAllocated() ? extra->lineHeight : 1.0; }
inline int maximumLineCount() const { return extra.isAllocated() ? extra->maximumLineCount : INT_MAX; }
inline QQuickText::LineHeightMode lineHeightMode() const { return extra.isAllocated() ? extra->lineHeightMode : QQuickText::ProportionalHeight; }
inline QQuickText::FontSizeMode fontSizeMode() const { return extra.isAllocated() ? extra->fontSizeMode : QQuickText::FixedSize; }
inline int minimumPixelSize() const { return extra.isAllocated() ? extra->minimumPixelSize : 12; }
inline int minimumPointSize() const { return extra.isAllocated() ? extra->minimumPointSize : 12; }
static inline QQuickTextPrivate *get(QQuickText *t) { return t->d_func(); }
};
class QQuickPixmap;
class QQuickTextDocumentWithImageResources : public QTextDocument, public QTextObjectInterface
{
Q_OBJECT
Q_INTERFACES(QTextObjectInterface)
public:
QQuickTextDocumentWithImageResources(QQuickItem *parent);
virtual ~QQuickTextDocumentWithImageResources();
void setText(const QString &);
int resourcesLoading() const { return outstanding; }
void clearResources();
void clear();
QSizeF intrinsicSize(QTextDocument *doc, int posInDocument, const QTextFormat &format);
void drawObject(QPainter *p, const QRectF &rect, QTextDocument *doc, int posInDocument, const QTextFormat &format);
QImage image(const QTextImageFormat &format);
void setBaseUrl(const QUrl &url, bool clear = true);
Q_SIGNALS:
void imagesLoaded();
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protected:
QVariant loadResource(int type, const QUrl &name);
QQuickPixmap *loadPixmap(QQmlContext *context, const QUrl &name);
private Q_SLOTS:
void requestFinished();
private:
QHash<QUrl, QQuickPixmap *> m_resources;
QUrl m_baseUrl;
int outstanding;
static QSet<QUrl> errors;
};
QT_END_NAMESPACE
#endif // QQUICKTEXT_P_P_H