diff options
Diffstat (limited to 'src/gui/text/qfontengine_qws.cpp')
| -rw-r--r-- | src/gui/text/qfontengine_qws.cpp | 665 |
1 files changed, 0 insertions, 665 deletions
diff --git a/src/gui/text/qfontengine_qws.cpp b/src/gui/text/qfontengine_qws.cpp deleted file mode 100644 index 4c6dff241d..0000000000 --- a/src/gui/text/qfontengine_qws.cpp +++ /dev/null @@ -1,665 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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, Nokia gives you certain additional -** rights. These rights are described in the Nokia 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qfontengine_p.h" -#include <private/qunicodetables_p.h> -#include <qwsdisplay_qws.h> -#include <qvarlengtharray.h> -#include <private/qpainter_p.h> -#include <private/qpaintengine_raster_p.h> -#include <private/qpdf_p.h> -#include "qtextengine_p.h" -#include "private/qcore_unix_p.h" // overrides QT_OPEN - -#include <qdebug.h> - - -#ifndef QT_NO_QWS_QPF - -#include "qfile.h" -#include "qdir.h" - -#define QT_USE_MMAP -#include <stdlib.h> - -#ifdef QT_USE_MMAP -// for mmap -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <errno.h> - -# if defined(QT_LINUXBASE) && !defined(MAP_FILE) - // LSB 3.2 does not define MAP_FILE -# define MAP_FILE 0 -# endif - -#endif - -#endif // QT_NO_QWS_QPF - -QT_BEGIN_NAMESPACE - -#ifndef QT_NO_QWS_QPF -QT_BEGIN_INCLUDE_NAMESPACE -#include "qplatformdefs.h" -QT_END_INCLUDE_NAMESPACE - -static inline unsigned int getChar(const QChar *str, int &i, const int len) -{ - unsigned int uc = str[i].unicode(); - if (uc >= 0xd800 && uc < 0xdc00 && i < len-1) { - uint low = str[i+1].unicode(); - if (low >= 0xdc00 && low < 0xe000) { - uc = (uc - 0xd800)*0x400 + (low - 0xdc00) + 0x10000; - ++i; - } - } - return uc; -} - -#define FM_SMOOTH 1 - - -class Q_PACKED QPFGlyphMetrics { - -public: - quint8 linestep; - quint8 width; - quint8 height; - quint8 flags; - - qint8 bearingx; // Difference from pen position to glyph's left bbox - quint8 advance; // Difference between pen positions - qint8 bearingy; // Used for putting characters on baseline - - qint8 reserved; // Do not use - - // Flags: - // RendererOwnsData - the renderer is responsible for glyph data - // memory deletion otherwise QPFGlyphTree must - // delete [] the data when the glyph is deleted. - enum Flags { RendererOwnsData=0x01 }; -}; - -class QPFGlyph { -public: - QPFGlyph() { metrics=0; data=0; } - QPFGlyph(QPFGlyphMetrics* m, uchar* d) : - metrics(m), data(d) { } - ~QPFGlyph() {} - - QPFGlyphMetrics* metrics; - uchar* data; -}; - -struct Q_PACKED QPFFontMetrics{ - qint8 ascent,descent; - qint8 leftbearing,rightbearing; - quint8 maxwidth; - qint8 leading; - quint8 flags; - quint8 underlinepos; - quint8 underlinewidth; - quint8 reserved3; -}; - - -class QPFGlyphTree { -public: - /* reads in a tree like this: - - A-Z - / \ - 0-9 a-z - - etc. - - */ - glyph_t min,max; - QPFGlyphTree* less; - QPFGlyphTree* more; - QPFGlyph* glyph; -public: -#ifdef QT_USE_MMAP - QPFGlyphTree(uchar*& data) - { - read(data); - } -#else - QPFGlyphTree(QIODevice& f) - { - read(f); - } -#endif - - ~QPFGlyphTree() - { - // NOTE: does not delete glyph[*].metrics or .data. - // the caller does this (only they know who owns - // the data). See clear(). - delete less; - delete more; - delete [] glyph; - } - - bool inFont(glyph_t g) const - { - if ( g < min ) { - if ( !less ) - return false; - return less->inFont(g); - } else if ( g > max ) { - if ( !more ) - return false; - return more->inFont(g); - } - return true; - } - - QPFGlyph* get(glyph_t g) - { - if ( g < min ) { - if ( !less ) - return 0; - return less->get(g); - } else if ( g > max ) { - if ( !more ) - return 0; - return more->get(g); - } - return &glyph[g - min]; - } - int totalChars() const - { - if ( !this ) return 0; - return max-min+1 + less->totalChars() + more->totalChars(); - } - int weight() const - { - if ( !this ) return 0; - return 1 + less->weight() + more->weight(); - } - - void dump(int indent=0) - { - for (int i=0; i<indent; i++) printf(" "); - printf("%d..%d",min,max); - //if ( indent == 0 ) - printf(" (total %d)",totalChars()); - printf("\n"); - if ( less ) less->dump(indent+1); - if ( more ) more->dump(indent+1); - } - -private: - QPFGlyphTree() - { - } - -#ifdef QT_USE_MMAP - void read(uchar*& data) - { - // All node data first - readNode(data); - // Then all non-video data - readMetrics(data); - // Then all video data - readData(data); - } -#else - void read(QIODevice& f) - { - // All node data first - readNode(f); - // Then all non-video data - readMetrics(f); - // Then all video data - readData(f); - } -#endif - -#ifdef QT_USE_MMAP - void readNode(uchar*& data) - { - uchar rw = *data++; - uchar cl = *data++; - min = (rw << 8) | cl; - rw = *data++; - cl = *data++; - max = (rw << 8) | cl; - int flags = *data++; - if ( flags & 1 ) - less = new QPFGlyphTree; - else - less = 0; - if ( flags & 2 ) - more = new QPFGlyphTree; - else - more = 0; - int n = max-min+1; - glyph = new QPFGlyph[n]; - - if ( less ) - less->readNode(data); - if ( more ) - more->readNode(data); - } -#else - void readNode(QIODevice& f) - { - char rw; - char cl; - f.getChar(&rw); - f.getChar(&cl); - min = (rw << 8) | cl; - f.getChar(&rw); - f.getChar(&cl); - max = (rw << 8) | cl; - char flags; - f.getChar(&flags); - if ( flags & 1 ) - less = new QPFGlyphTree; - else - less = 0; - if ( flags & 2 ) - more = new QPFGlyphTree; - else - more = 0; - int n = max-min+1; - glyph = new QPFGlyph[n]; - - if ( less ) - less->readNode(f); - if ( more ) - more->readNode(f); - } -#endif - -#ifdef QT_USE_MMAP - void readMetrics(uchar*& data) - { - int n = max-min+1; - for (int i=0; i<n; i++) { - glyph[i].metrics = (QPFGlyphMetrics*)data; - data += sizeof(QPFGlyphMetrics); - } - if ( less ) - less->readMetrics(data); - if ( more ) - more->readMetrics(data); - } -#else - void readMetrics(QIODevice& f) - { - int n = max-min+1; - for (int i=0; i<n; i++) { - glyph[i].metrics = new QPFGlyphMetrics; - f.read((char*)glyph[i].metrics, sizeof(QPFGlyphMetrics)); - } - if ( less ) - less->readMetrics(f); - if ( more ) - more->readMetrics(f); - } -#endif - -#ifdef QT_USE_MMAP - void readData(uchar*& data) - { - int n = max-min+1; - for (int i=0; i<n; i++) { - QSize s( glyph[i].metrics->width, glyph[i].metrics->height ); - //######### s = qt_screen->mapToDevice( s ); - uint datasize = glyph[i].metrics->linestep * s.height(); - glyph[i].data = data; data += datasize; - } - if ( less ) - less->readData(data); - if ( more ) - more->readData(data); - } -#else - void readData(QIODevice& f) - { - int n = max-min+1; - for (int i=0; i<n; i++) { - QSize s( glyph[i].metrics->width, glyph[i].metrics->height ); - //############### s = qt_screen->mapToDevice( s ); - uint datasize = glyph[i].metrics->linestep * s.height(); - glyph[i].data = new uchar[datasize]; // ### deleted? - f.read((char*)glyph[i].data, datasize); - } - if ( less ) - less->readData(f); - if ( more ) - more->readData(f); - } -#endif - -}; - -class QFontEngineQPF1Data -{ -public: - QPFFontMetrics fm; - QPFGlyphTree *tree; - void *mmapStart; - size_t mmapLength; -}; - -#if defined(Q_OS_INTEGRITY) -static void *qt_mmap(void *start, size_t length, int /*prot*/, int /*flags*/, int fd, off_t offset) -{ - // INTEGRITY cannot mmap local files - load it into a local buffer - if (::lseek(fd, offset, SEEK_SET) == -1) { -# if defined(DEBUG_FONTENGINE) - perror("lseek failed"); -# endif - } - void *buf = malloc(length); - if (::read(fd, buf, length) != (ssize_t)length) { -# if defined(DEBUG_FONTENGINE) - perror("read failed"); -# endif - } - - return buf; -} -#else -static inline void *qt_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) -{ - return mmap(start, length, prot, flags, fd, offset); -} -#endif - - - -QFontEngineQPF1::QFontEngineQPF1(const QFontDef&, const QString &fn) -{ - cache_cost = 1; - - int f = QT_OPEN( QFile::encodeName(fn), O_RDONLY, 0); - Q_ASSERT(f>=0); - QT_STATBUF st; - if ( QT_FSTAT( f, &st ) ) - qFatal("Failed to stat %s",QFile::encodeName(fn).data()); - uchar* data = (uchar*)qt_mmap( 0, // any address - st.st_size, // whole file - PROT_READ, // read-only memory -#if defined(Q_OS_INTEGRITY) - 0, -#elif !defined(Q_OS_SOLARIS) && !defined(Q_OS_QNX4) && !defined(Q_OS_VXWORKS) - MAP_FILE | MAP_PRIVATE, // swap-backed map from file -#else - MAP_PRIVATE, -#endif - f, 0 ); // from offset 0 of f -#if !defined(MAP_FAILED) && (defined(Q_OS_QNX4) || defined(Q_OS_INTEGRITY)) -#define MAP_FAILED ((void *)-1) -#endif - if ( !data || data == (uchar*)MAP_FAILED ) - qFatal("Failed to mmap %s",QFile::encodeName(fn).data()); - QT_CLOSE(f); - - d = new QFontEngineQPF1Data; - d->mmapStart = data; - d->mmapLength = st.st_size; - memcpy(reinterpret_cast<char*>(&d->fm),data,sizeof(d->fm)); - - data += sizeof(d->fm); - d->tree = new QPFGlyphTree(data); - glyphFormat = (d->fm.flags & FM_SMOOTH) ? QFontEngineGlyphCache::Raster_A8 - : QFontEngineGlyphCache::Raster_Mono; -#if 0 - qDebug() << "font file" << fn - << "ascent" << d->fm.ascent << "descent" << d->fm.descent - << "leftbearing" << d->fm.leftbearing - << "rightbearing" << d->fm.rightbearing - << "maxwidth" << d->fm.maxwidth - << "leading" << d->fm.leading - << "flags" << d->fm.flags - << "underlinepos" << d->fm.underlinepos - << "underlinewidth" << d->fm.underlinewidth; -#endif -} - -QFontEngineQPF1::~QFontEngineQPF1() -{ - if (d->mmapStart) - munmap(d->mmapStart, d->mmapLength); - delete d->tree; - delete d; -} - - -bool QFontEngineQPF1::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - if(*nglyphs < len) { - *nglyphs = len; - return false; - } - *nglyphs = 0; - - bool mirrored = flags & QTextEngine::RightToLeft; - for(int i = 0; i < len; i++) { - unsigned int uc = getChar(str, i, len); - if (mirrored) - uc = QChar::mirroredChar(uc); - glyphs->glyphs[*nglyphs] = uc < 0x10000 ? uc : 0; - ++*nglyphs; - } - - glyphs->numGlyphs = *nglyphs; - - if (flags & QTextEngine::GlyphIndicesOnly) - return true; - - recalcAdvances(glyphs, flags); - - return true; -} - -void QFontEngineQPF1::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags) const -{ - for(int i = 0; i < glyphs->numGlyphs; i++) { - QPFGlyph *glyph = d->tree->get(glyphs->glyphs[i]); - - glyphs->advances_x[i] = glyph ? glyph->metrics->advance : 0; - glyphs->advances_y[i] = 0; - - if (!glyph) - glyphs->glyphs[i] = 0; - } -} - -void QFontEngineQPF1::draw(QPaintEngine *p, qreal _x, qreal _y, const QTextItemInt &si) -{ - QPaintEngineState *pState = p->state; - QRasterPaintEngine *paintEngine = static_cast<QRasterPaintEngine*>(p); - - QTransform matrix = pState->transform(); - matrix.translate(_x, _y); - QFixed x = QFixed::fromReal(matrix.dx()); - QFixed y = QFixed::fromReal(matrix.dy()); - - QVarLengthArray<QFixedPoint> positions; - QVarLengthArray<glyph_t> glyphs; - getGlyphPositions(si.glyphs, matrix, si.flags, glyphs, positions); - if (glyphs.size() == 0) - return; - - int depth = (d->fm.flags & FM_SMOOTH) ? 8 : 1; - for(int i = 0; i < glyphs.size(); i++) { - const QPFGlyph *glyph = d->tree->get(glyphs[i]); - if (!glyph) - continue; - - int bpl = glyph->metrics->linestep; - - if(glyph->data) - paintEngine->alphaPenBlt(glyph->data, bpl, depth, - qRound(positions[i].x) + glyph->metrics->bearingx, - qRound(positions[i].y) - glyph->metrics->bearingy, - glyph->metrics->width,glyph->metrics->height); - } -} - - -QImage QFontEngineQPF1::alphaMapForGlyph(glyph_t g) -{ - const QPFGlyph *glyph = d->tree->get(g); - if (!glyph) - return QImage(); - - int mono = !(d->fm.flags & FM_SMOOTH); - - const uchar *bits = glyph->data;//((const uchar *) glyph); - - QImage image; - if (mono) { - image = QImage((glyph->metrics->width+7)&~7, glyph->metrics->height, QImage::Format_Mono); - image.setColor(0, qRgba(0, 0, 0, 0)); - image.setColor(1, qRgba(0, 0, 0, 255)); - } else { - image = QImage(glyph->metrics->width, glyph->metrics->height, QImage::Format_Indexed8); - for (int j=0; j<256; ++j) - image.setColor(j, qRgba(0, 0, 0, j)); - } - for (int i=0; i<glyph->metrics->height; ++i) { - memcpy(image.scanLine(i), bits, glyph->metrics->linestep); - bits += glyph->metrics->linestep; - } - return image; -} - - - -void QFontEngineQPF1::addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) -{ - addBitmapFontToPath(x, y, glyphs, path, flags); -} - -glyph_metrics_t QFontEngineQPF1::boundingBox(const QGlyphLayout &glyphs) -{ - if (glyphs.numGlyphs == 0) - return glyph_metrics_t(); - - QFixed w = 0; - for (int i = 0; i < glyphs.numGlyphs; ++i) - w += glyphs.effectiveAdvance(i); - return glyph_metrics_t(0, -ascent(), w - lastRightBearing(glyphs), ascent()+descent()+1, w, 0); -} - -glyph_metrics_t QFontEngineQPF1::boundingBox(glyph_t glyph) -{ - const QPFGlyph *g = d->tree->get(glyph); - if (!g) - return glyph_metrics_t(); - Q_ASSERT(g); - return glyph_metrics_t(g->metrics->bearingx, -g->metrics->bearingy, - g->metrics->width, g->metrics->height, - g->metrics->advance, 0); -} - -QFixed QFontEngineQPF1::ascent() const -{ - return d->fm.ascent; -} - -QFixed QFontEngineQPF1::descent() const -{ - return d->fm.descent; -} - -QFixed QFontEngineQPF1::leading() const -{ - return d->fm.leading; -} - -qreal QFontEngineQPF1::maxCharWidth() const -{ - return d->fm.maxwidth; -} -/* -const char *QFontEngineQPF1::name() const -{ - return "qt"; -} -*/ -bool QFontEngineQPF1::canRender(const QChar *str, int len) -{ - for(int i = 0; i < len; i++) - if (!d->tree->inFont(str[i].unicode())) - return false; - return true; -} - -QFontEngine::Type QFontEngineQPF1::type() const -{ - return QPF1; -} - -qreal QFontEngineQPF1::minLeftBearing() const -{ - return d->fm.leftbearing; -} - -qreal QFontEngineQPF1::minRightBearing() const -{ - return d->fm.rightbearing; -} - -QFixed QFontEngineQPF1::underlinePosition() const -{ - return d->fm.underlinepos; -} - -QFixed QFontEngineQPF1::lineThickness() const -{ - return d->fm.underlinewidth; -} - -#endif //QT_NO_QWS_QPF - -QT_END_NAMESPACE |