/****************************************************************************
**
** Copyright (C) 2010 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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****************************************************************************/
#include "qplatformdefs.h"
#include "private/qpixmap_x11_p.h"
#include "qapplication.h"
#include "qdebug.h"
#include "qfont.h"
#include "qwidget.h"
#include "qbitmap.h"
#include "qpixmapcache.h"
#include "qtextcodec.h"
#include "qcoreevent.h"
#include "qiodevice.h"
#include <qmath.h>
#include "qpainter_p.h"
#include <qtextlayout.h>
#include <qvarlengtharray.h>
#include <private/qfont_p.h>
#include <private/qtextengine_p.h>
#include <private/qpaintengine_x11_p.h>
#include <private/qfontengine_x11_p.h>
#include <private/qwidget_p.h>
#include <private/qpainterpath_p.h>
#include "qpen.h"
#include "qcolor.h"
#include "qcolormap.h"
#include <private/qpaintengine_p.h>
#include "qpaintengine_x11_p.h"
#include <private/qt_x11_p.h>
#include <private/qnumeric_p.h>
#include <limits.h>
#ifndef QT_NO_XRENDER
#include <private/qtessellator_p.h>
#endif
QT_BEGIN_NAMESPACE
extern Drawable qt_x11Handle(const QPaintDevice *pd);
extern const QX11Info *qt_x11Info(const QPaintDevice *pd);
extern QPixmap qt_pixmapForBrush(int brushStyle, bool invert); //in qbrush.cpp
extern QPixmap qt_toX11Pixmap(const QPixmap &pixmap);
// use the same rounding as in qrasterizer.cpp (6 bit fixed point)
static const qreal aliasedCoordinateDelta = 0.5 - 0.015625;
#undef X11 // defined in qt_x11_p.h
/*!
Returns the X11 specific pen GC for the painter \a p. Note that
QPainter::begin() must be called before this function returns a
valid GC.
*/
Q_GUI_EXPORT GC qt_x11_get_pen_gc(QPainter *p)
{
if (p && p->paintEngine()
&& p->paintEngine()->isActive()
&& p->paintEngine()->type() == QPaintEngine::X11) {
return static_cast<QX11PaintEngine *>(p->paintEngine())->d_func()->gc;
}
return 0;
}
/*!
Returns the X11 specific brush GC for the painter \a p. Note that
QPainter::begin() must be called before this function returns a
valid GC.
*/
Q_GUI_EXPORT GC qt_x11_get_brush_gc(QPainter *p)
{
if (p && p->paintEngine()
&& p->paintEngine()->isActive()
&& p->paintEngine()->type() == QPaintEngine::X11) {
return static_cast<QX11PaintEngine *>(p->paintEngine())->d_func()->gc_brush;
}
return 0;
}
#define X11 qt_x11Data
#ifndef QT_NO_XRENDER
static const int compositionModeToRenderOp[QPainter::CompositionMode_Xor + 1] = {
PictOpOver, //CompositionMode_SourceOver,
PictOpOverReverse, //CompositionMode_DestinationOver,
PictOpClear, //CompositionMode_Clear,
PictOpSrc, //CompositionMode_Source,
PictOpDst, //CompositionMode_Destination,
PictOpIn, //CompositionMode_SourceIn,
PictOpInReverse, //CompositionMode_DestinationIn,
PictOpOut, //CompositionMode_SourceOut,
PictOpOutReverse, //CompositionMode_DestinationOut,
PictOpAtop, //CompositionMode_SourceAtop,
PictOpAtopReverse, //CompositionMode_DestinationAtop,
PictOpXor //CompositionMode_Xor
};
static inline int qpainterOpToXrender(QPainter::CompositionMode mode)
{
Q_ASSERT(mode <= QPainter::CompositionMode_Xor);
return compositionModeToRenderOp[mode];
}
#endif
// hack, so we don't have to make QRegion::clipRectangles() public or include
// X11 headers in qregion.h
Q_GUI_EXPORT void *qt_getClipRects(const QRegion &r, int &num)
{
return r.clipRectangles(num);
}
static inline void x11SetClipRegion(Display *dpy, GC gc, GC gc2,
#ifndef QT_NO_XRENDER
Picture picture,
#else
Qt::HANDLE picture,
#endif
const QRegion &r)
{
int num;
XRectangle *rects = (XRectangle *)qt_getClipRects(r, num);
if (gc)
XSetClipRectangles( dpy, gc, 0, 0, rects, num, YXBanded );
if (gc2)
XSetClipRectangles( dpy, gc2, 0, 0, rects, num, YXBanded );
#ifndef QT_NO_XRENDER
if (picture)
XRenderSetPictureClipRectangles(dpy, picture, 0, 0, rects, num);
#else
Q_UNUSED(picture);
#endif // QT_NO_XRENDER
}
static inline void x11ClearClipRegion(Display *dpy, GC gc, GC gc2,
#ifndef QT_NO_XRENDER
Picture picture
#else
Qt::HANDLE picture
#endif
)
{
if (gc)
XSetClipMask(dpy, gc, XNone);
if (gc2)
XSetClipMask(dpy, gc2, XNone);
#ifndef QT_NO_XRENDER
if (picture) {
XRenderPictureAttributes attrs;
attrs.clip_mask = XNone;
XRenderChangePicture (dpy, picture, CPClipMask, &attrs);
}
#else
Q_UNUSED(picture);
#endif // QT_NO_XRENDER
}
#define DITHER_SIZE 16
static const uchar base_dither_matrix[DITHER_SIZE][DITHER_SIZE] = {
{ 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 },
{ 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
{ 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
{ 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
{ 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 },
{ 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
{ 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
{ 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
{ 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 },
{ 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
{ 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
{ 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
{ 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 },
{ 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
{ 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
{ 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
};
static QPixmap qt_patternForAlpha(uchar alpha, int screen)
{
QPixmap pm;
QString key = QLatin1String("$qt-alpha-brush$") + QString::number(alpha) + QString::number(screen);
if (!QPixmapCache::find(key, pm)) {
// #### why not use a mono image here????
QImage pattern(DITHER_SIZE, DITHER_SIZE, QImage::Format_ARGB32);
pattern.fill(0xffffffff);
for (int y = 0; y < DITHER_SIZE; ++y) {
for (int x = 0; x < DITHER_SIZE; ++x) {
if (base_dither_matrix[x][y] <= alpha)
pattern.setPixel(x, y, 0x00000000);
}
}
pm = QBitmap::fromImage(pattern);
pm.x11SetScreen(screen);
QPixmapCache::insert(key, pm);
}
return pm;
}
#if !defined(QT_NO_XRENDER)
class QXRenderTessellator : public QTessellator
{
public:
QXRenderTessellator() : traps(0), allocated(0), size(0) {}
~QXRenderTessellator() { free(traps); }
XTrapezoid *traps;
int allocated;
int size;
void addTrap(const Trapezoid &trap);
QRect tessellate(const QPointF *points, int nPoints, bool winding) {
size = 0;
setWinding(winding);
return QTessellator::tessellate(points, nPoints).toRect();
}
void done() {
if (allocated > 64) {
free(traps);
traps = 0;
allocated = 0;
}
}
};
void QXRenderTessellator::addTrap(const Trapezoid &trap)
{
if (size == allocated) {
allocated = qMax(2*allocated, 64);
traps = q_check_ptr((XTrapezoid *)realloc(traps, allocated * sizeof(XTrapezoid)));
}
traps[size].top = Q27Dot5ToXFixed(trap.top);
traps[size].bottom = Q27Dot5ToXFixed(trap.bottom);
traps[size].left.p1.x = Q27Dot5ToXFixed(trap.topLeft->x);
traps[size].left.p1.y = Q27Dot5ToXFixed(trap.topLeft->y);
traps[size].left.p2.x = Q27Dot5ToXFixed(trap.bottomLeft->x);
traps[size].left.p2.y = Q27Dot5ToXFixed(trap.bottomLeft->y);
traps[size].right.p1.x = Q27Dot5ToXFixed(trap.topRight->x);
traps[size].right.p1.y = Q27Dot5ToXFixed(trap.topRight->y);
traps[size].right.p2.x = Q27Dot5ToXFixed(trap.bottomRight->x);
traps[size].right.p2.y = Q27Dot5ToXFixed(trap.bottomRight->y);
++size;
}
#endif // !defined(QT_NO_XRENDER)
#ifndef QT_NO_XRENDER
static Picture getPatternFill(int screen, const QBrush &b)
{
if (!X11->use_xrender)
return XNone;
XRenderColor color = X11->preMultiply(b.color());
XRenderColor bg_color;
bg_color = X11->preMultiply(QColor(0, 0, 0, 0));
for (int i = 0; i < X11->pattern_fill_count; ++i) {
if (X11->pattern_fills[i].screen == screen
&& X11->pattern_fills[i].opaque == false
&& X11->pattern_fills[i].style == b.style()
&& X11->pattern_fills[i].color.alpha == color.alpha
&& X11->pattern_fills[i].color.red == color.red
&& X11->pattern_fills[i].color.green == color.green
&& X11->pattern_fills[i].color.blue == color.blue
&& X11->pattern_fills[i].bg_color.alpha == bg_color.alpha
&& X11->pattern_fills[i].bg_color.red == bg_color.red
&& X11->pattern_fills[i].bg_color.green == bg_color.green
&& X11->pattern_fills[i].bg_color.blue == bg_color.blue)
return X11->pattern_fills[i].picture;
}
// none found, replace one
int i = rand() % 16;
if (X11->pattern_fills[i].screen != screen && X11->pattern_fills[i].picture) {
XRenderFreePicture (X11->display, X11->pattern_fills[i].picture);
X11->pattern_fills[i].picture = 0;
}
if (!X11->pattern_fills[i].picture) {
Pixmap pixmap = XCreatePixmap (X11->display, RootWindow (X11->display, screen), 8, 8, 32);
XRenderPictureAttributes attrs;
attrs.repeat = True;
X11->pattern_fills[i].picture = XRenderCreatePicture (X11->display, pixmap,
XRenderFindStandardFormat(X11->display, PictStandardARGB32),
CPRepeat, &attrs);
XFreePixmap (X11->display, pixmap);
}
X11->pattern_fills[i].screen = screen;
X11->pattern_fills[i].color = color;
X11->pattern_fills[i].bg_color = bg_color;
X11->pattern_fills[i].opaque = false;
X11->pattern_fills[i].style = b.style();
XRenderFillRectangle(X11->display, PictOpSrc, X11->pattern_fills[i].picture, &bg_color, 0, 0, 8, 8);
QPixmap pattern(qt_pixmapForBrush(b.style(), true));
XRenderPictureAttributes attrs;
attrs.repeat = true;
XRenderChangePicture(X11->display, pattern.x11PictureHandle(), CPRepeat, &attrs);
Picture fill_fg = X11->getSolidFill(screen, b.color());
XRenderComposite(X11->display, PictOpOver, fill_fg, pattern.x11PictureHandle(),
X11->pattern_fills[i].picture,
0, 0, 0, 0, 0, 0, 8, 8);
return X11->pattern_fills[i].picture;
}
static void qt_render_bitmap(Display *dpy, int scrn, Picture src, Picture dst,
int sx, int sy, int x, int y, int sw, int sh,
const QPen &pen)
{
Picture fill_fg = X11->getSolidFill(scrn, pen.color());
XRenderComposite(dpy, PictOpOver,
fill_fg, src, dst, sx, sy, sx, sy, x, y, sw, sh);
}
#endif
void QX11PaintEnginePrivate::init()
{
dpy = 0;
scrn = 0;
hd = 0;
picture = 0;
xinfo = 0;
#ifndef QT_NO_XRENDER
current_brush = 0;
composition_mode = PictOpOver;
tessellator = new QXRenderTessellator;
#endif
}
void QX11PaintEnginePrivate::setupAdaptedOrigin(const QPoint &p)
{
if (adapted_pen_origin)
XSetTSOrigin(dpy, gc, p.x(), p.y());
if (adapted_brush_origin)
XSetTSOrigin(dpy, gc_brush, p.x(), p.y());
}
void QX11PaintEnginePrivate::resetAdaptedOrigin()
{
if (adapted_pen_origin)
XSetTSOrigin(dpy, gc, 0, 0);
if (adapted_brush_origin)
XSetTSOrigin(dpy, gc_brush, 0, 0);
}
void QX11PaintEnginePrivate::clipPolygon_dev(const QPolygonF &poly, QPolygonF *clipped_poly)
{
int clipped_count = 0;
qt_float_point *clipped_points = 0;
polygonClipper.clipPolygon((qt_float_point *) poly.data(), poly.size(),
&clipped_points, &clipped_count);
clipped_poly->resize(clipped_count);
for (int i=0; i<clipped_count; ++i)
(*clipped_poly)[i] = *((QPointF *)(&clipped_points[i]));
}
void QX11PaintEnginePrivate::systemStateChanged()
{
Q_Q(QX11PaintEngine);
QPainter *painter = q->state ? static_cast<QPainterState *>(q->state)->painter : 0;
if (painter && painter->hasClipping()) {
if (q->testDirty(QPaintEngine::DirtyTransform))
q->updateMatrix(q->state->transform());
QPolygonF clip_poly_dev(matrix.map(painter->clipPath().toFillPolygon()));
QPolygonF clipped_poly_dev;
clipPolygon_dev(clip_poly_dev, &clipped_poly_dev);
q->updateClipRegion_dev(QRegion(clipped_poly_dev.toPolygon()), Qt::ReplaceClip);
} else {
q->updateClipRegion_dev(QRegion(), Qt::NoClip);
}
}
static QPaintEngine::PaintEngineFeatures qt_decide_features()
{
QPaintEngine::PaintEngineFeatures features =
QPaintEngine::PrimitiveTransform
| QPaintEngine::PatternBrush
| QPaintEngine::AlphaBlend
| QPaintEngine::PainterPaths
| QPaintEngine::RasterOpModes;
if (X11->use_xrender) {
features |= QPaintEngine::Antialiasing;
features |= QPaintEngine::PorterDuff;
features |= QPaintEngine::MaskedBrush;
#if 0
if (X11->xrender_version > 10) {
features |= QPaintEngine::LinearGradientFill;
// ###
}
#endif
}
return features;
}
/*
* QX11PaintEngine members
*/
QX11PaintEngine::QX11PaintEngine()
: QPaintEngine(*(new QX11PaintEnginePrivate), qt_decide_features())
{
d_func()->init();
}
QX11PaintEngine::QX11PaintEngine(QX11PaintEnginePrivate &dptr)
: QPaintEngine(dptr, qt_decide_features())
{
d_func()->init();
}
QX11PaintEngine::~QX11PaintEngine()
{
#ifndef QT_NO_XRENDER
Q_D(QX11PaintEngine);
delete d->tessellator;
#endif
}
bool QX11PaintEngine::begin(QPaintDevice *pdev)
{
Q_D(QX11PaintEngine);
d->xinfo = qt_x11Info(pdev);
QWidget *w = d->pdev->devType() == QInternal::Widget ? static_cast<QWidget *>(d->pdev) : 0;
const bool isAlienWidget = w && !w->internalWinId() && w->testAttribute(Qt::WA_WState_Created);
#ifndef QT_NO_XRENDER
if (w) {
if (isAlienWidget)
d->picture = (::Picture)w->nativeParentWidget()->x11PictureHandle();
else
d->picture = (::Picture)w->x11PictureHandle();
} else if (pdev->devType() == QInternal::Pixmap) {
const QPixmap *pm = static_cast<const QPixmap *>(pdev);
QX11PixmapData *data = static_cast<QX11PixmapData*>(pm->data.data());
if (X11->use_xrender && data->depth() != 32 && data->x11_mask)
data->convertToARGB32();
d->picture = (::Picture)static_cast<const QPixmap *>(pdev)->x11PictureHandle();
}
#else
d->picture = 0;
#endif
d->hd = !isAlienWidget ? qt_x11Handle(pdev) : qt_x11Handle(w->nativeParentWidget());
Q_ASSERT(d->xinfo != 0);
d->dpy = d->xinfo->display(); // get display variable
d->scrn = d->xinfo->screen(); // get screen variable
d->crgn = QRegion();
d->gc = XCreateGC(d->dpy, d->hd, 0, 0);
d->gc_brush = XCreateGC(d->dpy, d->hd, 0, 0);
d->has_alpha_brush = false;
d->has_alpha_pen = false;
d->has_clipping = false;
d->has_complex_xform = false;
d->has_scaling_xform = false;
d->has_non_scaling_xform = true;
d->xform_scale = 1;
d->has_custom_pen = false;
d->matrix = QTransform();
d->pdev_depth = d->pdev->depth();
d->render_hints = 0;
d->txop = QTransform::TxNone;
d->use_path_fallback = false;
#if !defined(QT_NO_XRENDER)
d->composition_mode = PictOpOver;
#endif
d->xlibMaxLinePoints = 32762; // a safe number used to avoid, call to XMaxRequestSize(d->dpy) - 3;
d->opacity = 1;
// Set up the polygon clipper. Note: This will only work in
// polyline mode as long as we have a buffer zone, since a
// polyline may be clipped into several non-connected polylines.
const int BUFFERZONE = 1000;
QRect devClipRect(-BUFFERZONE, -BUFFERZONE,
pdev->width() + 2*BUFFERZONE, pdev->height() + 2*BUFFERZONE);
d->polygonClipper.setBoundingRect(devClipRect);
if (isAlienWidget) {
// Set system clip for alien widgets painting outside the paint event.
// This is not a problem with native windows since the windowing system
// will handle the clip.
QWidgetPrivate *wd = w->d_func();
QRegion widgetClip(wd->clipRect());
wd->clipToEffectiveMask(widgetClip);
wd->subtractOpaqueSiblings(widgetClip);
widgetClip.translate(w->mapTo(w->nativeParentWidget(), QPoint()));
setSystemClip(widgetClip);
}
QPixmap::x11SetDefaultScreen(d->xinfo->screen());
if (w && w->testAttribute(Qt::WA_PaintUnclipped)) { // paint direct on device
updatePen(QPen(Qt::black));
updateBrush(QBrush(Qt::white), QPoint());
XSetSubwindowMode(d->dpy, d->gc, IncludeInferiors);
XSetSubwindowMode(d->dpy, d->gc_brush, IncludeInferiors);
#ifndef QT_NO_XRENDER
XRenderPictureAttributes attrs;
attrs.subwindow_mode = IncludeInferiors;
XRenderChangePicture(d->dpy, d->picture, CPSubwindowMode, &attrs);
#endif
}
setDirty(QPaintEngine::DirtyClipRegion);
setDirty(QPaintEngine::DirtyPen);
setDirty(QPaintEngine::DirtyBrush);
setDirty(QPaintEngine::DirtyBackground);
return true;
}
bool QX11PaintEngine::end()
{
Q_D(QX11PaintEngine);
#if !defined(QT_NO_XRENDER)
if (d->picture) {
// reset clipping/subwindow mode on our render picture
XRenderPictureAttributes attrs;
attrs.subwindow_mode = ClipByChildren;
attrs.clip_mask = XNone;
XRenderChangePicture(d->dpy, d->picture, CPClipMask|CPSubwindowMode, &attrs);
}
#endif
if (d->gc_brush && d->pdev->painters < 2) {
XFreeGC(d->dpy, d->gc_brush);
d->gc_brush = 0;
}
if (d->gc && d->pdev->painters < 2) {
XFreeGC(d->dpy, d->gc);
d->gc = 0;
}
// Restore system clip for alien widgets painting outside the paint event.
if (d->pdev->devType() == QInternal::Widget && !static_cast<QWidget *>(d->pdev)->internalWinId())
setSystemClip(QRegion());
return true;
}
static bool clipLine(QLineF *line, const QRect &rect)
{
qreal x1 = line->x1();
qreal x2 = line->x2();
qreal y1 = line->y1();
qreal y2 = line->y2();
qreal left = rect.x();
qreal right = rect.x() + rect.width() - 1;
qreal top = rect.y();
qreal bottom = rect.y() + rect.height() - 1;
enum { Left, Right, Top, Bottom };
// clip the lines, after cohen-sutherland, see e.g. http://www.nondot.org/~sabre/graphpro/line6.html
int p1 = ((x1 < left) << Left)
| ((x1 > right) << Right)
| ((y1 < top) << Top)
| ((y1 > bottom) << Bottom);
int p2 = ((x2 < left) << Left)
| ((x2 > right) << Right)
| ((y2 < top) << Top)
| ((y2 > bottom) << Bottom);
if (p1 & p2)
// completely outside
return false;
if (p1 | p2) {
qreal dx = x2 - x1;
qreal dy = y2 - y1;
// clip x coordinates
if (x1 < left) {
y1 += dy/dx * (left - x1);
x1 = left;
} else if (x1 > right) {
y1 -= dy/dx * (x1 - right);
x1 = right;
}
if (x2 < left) {
y2 += dy/dx * (left - x2);
x2 = left;
} else if (x2 > right) {
y2 -= dy/dx * (x2 - right);
x2 = right;
}
p1 = ((y1 < top) << Top)
| ((y1 > bottom) << Bottom);
p2 = ((y2 < top) << Top)
| ((y2 > bottom) << Bottom);
if (p1 & p2)
return false;
// clip y coordinates
if (y1 < top) {
x1 += dx/dy * (top - y1);
y1 = top;
} else if (y1 > bottom) {
x1 -= dx/dy * (y1 - bottom);
y1 = bottom;
}
if (y2 < top) {
x2 += dx/dy * (top - y2);
y2 = top;
} else if (y2 > bottom) {
x2 -= dx/dy * (y2 - bottom);
y2 = bottom;
}
*line = QLineF(QPointF(x1, y1), QPointF(x2, y2));
}
return true;
}
void QX11PaintEngine::drawLines(const QLine *lines, int lineCount)
{
Q_ASSERT(lines);
Q_ASSERT(lineCount);
Q_D(QX11PaintEngine);
if (d->has_alpha_brush
|| d->has_alpha_pen
|| d->has_custom_pen
|| (d->cpen.widthF() > 0 && d->has_complex_xform
&& !d->has_non_scaling_xform)
|| (d->render_hints & QPainter::Antialiasing)) {
for (int i = 0; i < lineCount; ++i) {
QPainterPath path(lines[i].p1());
path.lineTo(lines[i].p2());
drawPath(path);
}
return;
}
if (d->has_pen) {
for (int i = 0; i < lineCount; ++i) {
QLineF linef;
if (d->txop == QTransform::TxNone) {
linef = lines[i];
} else {
linef = d->matrix.map(QLineF(lines[i]));
}
if (clipLine(&linef, d->polygonClipper.boundingRect())) {
int x1 = qRound(linef.x1() + aliasedCoordinateDelta);
int y1 = qRound(linef.y1() + aliasedCoordinateDelta);
int x2 = qRound(linef.x2() + aliasedCoordinateDelta);
int y2 = qRound(linef.y2() + aliasedCoordinateDelta);
XDrawLine(d->dpy, d->hd, d->gc, x1, y1, x2, y2);
}
}
}
}
void QX11PaintEngine::drawLines(const QLineF *lines, int lineCount)
{
Q_ASSERT(lines);
Q_ASSERT(lineCount);
Q_D(QX11PaintEngine);
if (d->has_alpha_brush
|| d->has_alpha_pen
|| d->has_custom_pen
|| (d->cpen.widthF() > 0 && d->has_complex_xform
&& !d->has_non_scaling_xform)
|| (d->render_hints & QPainter::Antialiasing)) {
for (int i = 0; i < lineCount; ++i) {
QPainterPath path(lines[i].p1());
path.lineTo(lines[i].p2());
drawPath(path);
}
return;
}
if (d->has_pen) {
for (int i = 0; i < lineCount; ++i) {
QLineF linef = d->matrix.map(lines[i]);
if (clipLine(&linef, d->polygonClipper.boundingRect())) {
int x1 = qRound(linef.x1() + aliasedCoordinateDelta);
int y1 = qRound(linef.y1() + aliasedCoordinateDelta);
int x2 = qRound(linef.x2() + aliasedCoordinateDelta);
int y2 = qRound(linef.y2() + aliasedCoordinateDelta);
XDrawLine(d->dpy, d->hd, d->gc, x1, y1, x2, y2);
}
}
}
}
static inline QLine clipStraightLine(const QRect &clip, const QLine &l)
{
if (l.p1().x() == l.p2().x()) {
int x = qBound(clip.left(), l.p1().x(), clip.right());
int y1 = qBound(clip.top(), l.p1().y(), clip.bottom());
int y2 = qBound(clip.top(), l.p2().y(), clip.bottom());
return QLine(x, y1, x, y2);
} else {
Q_ASSERT(l.p1().y() == l.p2().y());
int x1 = qBound(clip.left(), l.p1().x(), clip.right());
int x2 = qBound(clip.left(), l.p2().x(), clip.right());
int y = qBound(clip.top(), l.p1().y(), clip.bottom());
return QLine(x1, y, x2, y);
}
}
void QX11PaintEngine::drawRects(const QRectF *rects, int rectCount)
{
Q_D(QX11PaintEngine);
Q_ASSERT(rects);
Q_ASSERT(rectCount);
if (rectCount != 1
|| d->has_pen
|| d->has_alpha_brush
|| d->has_complex_xform
|| d->has_custom_pen
|| d->cbrush.style() != Qt::SolidPattern)
{
QPaintEngine::drawRects(rects, rectCount);
return;
}
QPoint alignedOffset;
if (d->txop == QTransform::TxTranslate) {
QPointF offset(d->matrix.dx(), d->matrix.dy());
alignedOffset = offset.toPoint();
if (offset != QPointF(alignedOffset)) {
QPaintEngine::drawRects(rects, rectCount);
return;
}
}
const QRectF& r = rects[0];
QRect alignedRect = r.toAlignedRect();
if (r != QRectF(alignedRect)) {
QPaintEngine::drawRects(rects, rectCount);
return;
}
alignedRect.translate(alignedOffset);
QRect clip(d->polygonClipper.boundingRect());
alignedRect = alignedRect.intersected(clip);
if (alignedRect.isEmpty())
return;
// simple-case:
// the rectangle is pixel-aligned
// the fill brush is just a solid non-alpha color
// the painter transform is only integer translation
// ignore: antialiasing and just XFillRectangles directly
XRectangle xrect;
xrect.x = short(alignedRect.x());
xrect.y = short(alignedRect.y());
xrect.width = ushort(alignedRect.width());
xrect.height = ushort(alignedRect.height());
XFillRectangles(d->dpy, d->hd, d->gc_brush, &xrect, 1);
}
void QX11PaintEngine::drawRects(const QRect *rects, int rectCount)
{
Q_D(QX11PaintEngine);
Q_ASSERT(rects);
Q_ASSERT(rectCount);
if (d->has_alpha_pen
|| d->has_complex_xform
|| d->has_custom_pen
|| (d->render_hints & QPainter::Antialiasing))
{
for (int i = 0; i < rectCount; ++i) {
QPainterPath path;
path.addRect(rects[i]);
drawPath(path);
}
return;
}
QRect clip(d->polygonClipper.boundingRect());
QPoint offset(qRound(d->matrix.dx()), qRound(d->matrix.dy()));
#if !defined(QT_NO_XRENDER)
::Picture pict = d->picture;
if (X11->use_xrender && pict && d->has_brush && d->pdev_depth != 1
&& (d->has_texture || d->has_alpha_brush))
{
XRenderColor xc;
if (!d->has_texture && !d->has_pattern)
xc = X11->preMultiply(d->cbrush.color());
for (int i = 0; i < rectCount; ++i) {
QRect r(rects[i]);
if (d->txop == QTransform::TxTranslate)
r.translate(offset);
if (r.width() == 0 || r.height() == 0) {
if (d->has_pen) {
const QLine l = clipStraightLine(clip, QLine(r.left(), r.top(), r.left() + r.width(), r.top() + r.height()));
XDrawLine(d->dpy, d->hd, d->gc, l.p1().x(), l.p1().y(), l.p2().x(), l.p2().y());
}
continue;
}
r = r.intersected(clip);
if (r.isEmpty())
continue;
if (d->has_texture || d->has_pattern) {
XRenderComposite(d->dpy, d->composition_mode, d->current_brush, 0, pict,
qRound(r.x() - d->bg_origin.x()), qRound(r.y() - d->bg_origin.y()),
0, 0, r.x(), r.y(), r.width(), r.height());
} else {
XRenderFillRectangle(d->dpy, d->composition_mode, pict, &xc, r.x(), r.y(), r.width(), r.height());
}
if (d->has_pen)
XDrawRectangle(d->dpy, d->hd, d->gc, r.x(), r.y(), r.width(), r.height());
}
} else
#endif // !QT_NO_XRENDER
{
if (d->has_brush && d->has_pen) {
for (int i = 0; i < rectCount; ++i) {
QRect r(rects[i]);
if (d->txop == QTransform::TxTranslate)
r.translate(offset);
if (r.width() == 0 || r.height() == 0) {
const QLine l = clipStraightLine(clip, QLine(r.left(), r.top(), r.left() + r.width(), r.top() + r.height()));
XDrawLine(d->dpy, d->hd, d->gc, l.p1().x(), l.p1().y(), l.p2().x(), l.p2().y());
continue;
}
r = r.intersected(clip);
if (r.isEmpty())
continue;
d->setupAdaptedOrigin(r.topLeft());
XFillRectangle(d->dpy, d->hd, d->gc_brush, r.x(), r.y(), r.width(), r.height());
XDrawRectangle(d->dpy, d->hd, d->gc, r.x(), r.y(), r.width(), r.height());
}
d->resetAdaptedOrigin();
} else {
QVarLengthArray<XRectangle> xrects(rectCount);
int numClipped = rectCount;
for (int i = 0; i < rectCount; ++i) {
QRect r(rects[i]);
if (d->txop == QTransform::TxTranslate)
r.translate(offset);
if (r.width() == 0 || r.height() == 0) {
--numClipped;
if (d->has_pen) {
const QLine l = clipStraightLine(clip, QLine(r.left(), r.top(), r.left() + r.width(), r.top() + r.height()));
XDrawLine(d->dpy, d->hd, d->gc, l.p1().x(), l.p1().y(), l.p2().x(), l.p2().y());
}
continue;
}
r = r.intersected(clip);
if (r.isEmpty()) {
--numClipped;
continue;
}
xrects[i].x = short(r.x());
xrects[i].y = short(r.y());
xrects[i].width = ushort(r.width());
xrects[i].height = ushort(r.height());
}
if (numClipped) {
d->setupAdaptedOrigin(rects[0].topLeft());
if (d->has_brush)
XFillRectangles(d->dpy, d->hd, d->gc_brush, xrects.data(), numClipped);
else if (d->has_pen)
XDrawRectangles(d->dpy, d->hd, d->gc, xrects.data(), numClipped);
d->resetAdaptedOrigin();
}
}
}
}
static inline void setCapStyle(int cap_style, GC gc)
{
ulong mask = GCCapStyle;
XGCValues vals;
vals.cap_style = cap_style;
XChangeGC(X11->display, gc, mask, &vals);
}
void QX11PaintEngine::drawPoints(const QPoint *points, int pointCount)
{
Q_ASSERT(points);
Q_ASSERT(pointCount);
Q_D(QX11PaintEngine);
if (!d->has_pen)
return;
// use the same test here as in drawPath to ensure that we don't use the path fallback
// and end up in XDrawLines for pens with width <= 1
if (d->cpen.widthF() > 1.0f
|| (X11->use_xrender && (d->has_alpha_pen || (d->render_hints & QPainter::Antialiasing)))
|| (!d->cpen.isCosmetic() && d->txop > QTransform::TxTranslate))
{
Qt::PenCapStyle capStyle = d->cpen.capStyle();
if (capStyle == Qt::FlatCap) {
setCapStyle(CapProjecting, d->gc);
d->cpen.setCapStyle(Qt::SquareCap);
}
const QPoint *end = points + pointCount;
while (points < end) {
QPainterPath path;
path.moveTo(*points);
path.lineTo(points->x()+.005, points->y());
drawPath(path);
++points;
}
if (capStyle == Qt::FlatCap) {
setCapStyle(CapButt, d->gc);
d->cpen.setCapStyle(capStyle);
}
return;
}
static const int BUF_SIZE = 1024;
XPoint xPoints[BUF_SIZE];
int i = 0, j = 0;
while (i < pointCount) {
while (i < pointCount && j < BUF_SIZE) {
const QPoint &xformed = d->matrix.map(points[i]);
int x = xformed.x();
int y = xformed.y();
if (x >= SHRT_MIN && y >= SHRT_MIN && x < SHRT_MAX && y < SHRT_MAX) {
xPoints[j].x = x;
xPoints[j].y = y;
++j;
}
++i;
}
if (j)
XDrawPoints(d->dpy, d->hd, d->gc, xPoints, j, CoordModeOrigin);
j = 0;
}
}
void QX11PaintEngine::drawPoints(const QPointF *points, int pointCount)
{
Q_ASSERT(points);
Q_ASSERT(pointCount);
Q_D(QX11PaintEngine);
if (!d->has_pen)
return;
// use the same test here as in drawPath to ensure that we don't use the path fallback
// and end up in XDrawLines for pens with width <= 1
if (d->cpen.widthF() > 1.0f
|| (X11->use_xrender && (d->has_alpha_pen || (d->render_hints & QPainter::Antialiasing)))
|| (!d->cpen.isCosmetic() && d->txop > QTransform::TxTranslate))
{
Qt::PenCapStyle capStyle = d->cpen.capStyle();
if (capStyle == Qt::FlatCap) {
setCapStyle(CapProjecting, d->gc);
d->cpen.setCapStyle(Qt::SquareCap);
}
const QPointF *end = points + pointCount;
while (points < end) {
QPainterPath path;
path.moveTo(*points);
path.lineTo(points->x() + 0.005, points->y());
drawPath(path);
++points;
}
if (capStyle == Qt::FlatCap) {
setCapStyle(CapButt, d->gc);
d->cpen.setCapStyle(capStyle);
}
return;
}
static const int BUF_SIZE = 1024;
XPoint xPoints[BUF_SIZE];
int i = 0, j = 0;
while (i < pointCount) {
while (i < pointCount && j < BUF_SIZE) {
const QPointF &xformed = d->matrix.map(points[i]);
int x = qFloor(xformed.x());
int y = qFloor(xformed.y());
if (x >= SHRT_MIN && y >= SHRT_MIN && x < SHRT_MAX && y < SHRT_MAX) {
xPoints[j].x = x;
xPoints[j].y = y;
++j;
}
++i;
}
if (j)
XDrawPoints(d->dpy, d->hd, d->gc, xPoints, j, CoordModeOrigin);
j = 0;
}
}
QPainter::RenderHints QX11PaintEngine::supportedRenderHints() const
{
#if !defined(QT_NO_XRENDER)
if (X11->use_xrender)
return QPainter::Antialiasing;
#endif
return QFlag(0);
}
void QX11PaintEngine::updateState(const QPaintEngineState &state)
{
Q_D(QX11PaintEngine);
QPaintEngine::DirtyFlags flags = state.state();
if (flags & DirtyOpacity) {
d->opacity = state.opacity();
// Force update pen/brush as to get proper alpha colors propagated
flags |= DirtyPen;
flags |= DirtyBrush;
}
if (flags & DirtyTransform) updateMatrix(state.transform());
if (flags & DirtyPen) updatePen(state.pen());
if (flags & (DirtyBrush | DirtyBrushOrigin)) updateBrush(state.brush(), state.brushOrigin());
if (flags & DirtyFont) updateFont(state.font());
if (state.state() & DirtyClipEnabled) {
if (state.isClipEnabled()) {
QPolygonF clip_poly_dev(d->matrix.map(painter()->clipPath().toFillPolygon()));
QPolygonF clipped_poly_dev;
d->clipPolygon_dev(clip_poly_dev, &clipped_poly_dev);
updateClipRegion_dev(QRegion(clipped_poly_dev.toPolygon()), Qt::ReplaceClip);
} else {
updateClipRegion_dev(QRegion(), Qt::NoClip);
}
}
if (flags & DirtyClipPath) {
QPolygonF clip_poly_dev(d->matrix.map(state.clipPath().toFillPolygon()));
QPolygonF clipped_poly_dev;
d->clipPolygon_dev(clip_poly_dev, &clipped_poly_dev);
updateClipRegion_dev(QRegion(clipped_poly_dev.toPolygon(), state.clipPath().fillRule()),
state.clipOperation());
} else if (flags & DirtyClipRegion) {
extern QPainterPath qt_regionToPath(const QRegion ®ion);
QPainterPath clip_path = qt_regionToPath(state.clipRegion());
QPolygonF clip_poly_dev(d->matrix.map(clip_path.toFillPolygon()));
QPolygonF clipped_poly_dev;
d->clipPolygon_dev(clip_poly_dev, &clipped_poly_dev);
updateClipRegion_dev(QRegion(clipped_poly_dev.toPolygon()), state.clipOperation());
}
if (flags & DirtyHints) updateRenderHints(state.renderHints());
if (flags & DirtyCompositionMode) {
int function = GXcopy;
if (state.compositionMode() >= QPainter::RasterOp_SourceOrDestination) {
switch (state.compositionMode()) {
case QPainter::RasterOp_SourceOrDestination:
function = GXor;
break;
case QPainter::RasterOp_SourceAndDestination:
function = GXand;
break;
case QPainter::RasterOp_SourceXorDestination:
function = GXxor;
break;
case QPainter::RasterOp_NotSourceAndNotDestination:
function = GXnor;
break;
case QPainter::RasterOp_NotSourceOrNotDestination:
function = GXnand;
break;
case QPainter::RasterOp_NotSourceXorDestination:
function = GXequiv;
break;
case QPainter::RasterOp_NotSource:
function = GXcopyInverted;
break;
case QPainter::RasterOp_SourceAndNotDestination:
function = GXandReverse;
break;
case QPainter::RasterOp_NotSourceAndDestination:
function = GXandInverted;
break;
default:
function = GXcopy;
}
}
#if !defined(QT_NO_XRENDER)
else {
d->composition_mode =
qpainterOpToXrender(state.compositionMode());
}
#endif
XSetFunction(X11->display, d->gc, function);
XSetFunction(X11->display, d->gc_brush, function);
}
d->decidePathFallback();
d->decideCoordAdjust();
}
void QX11PaintEngine::updateRenderHints(QPainter::RenderHints hints)
{
Q_D(QX11PaintEngine);
d->render_hints = hints;
#if !defined(QT_NO_XRENDER)
if (X11->use_xrender && d->picture) {
XRenderPictureAttributes attrs;
attrs.poly_edge = (hints & QPainter::Antialiasing) ? PolyEdgeSmooth : PolyEdgeSharp;
XRenderChangePicture(d->dpy, d->picture, CPPolyEdge, &attrs);
}
#endif
}
void QX11PaintEngine::updatePen(const QPen &pen)
{
Q_D(QX11PaintEngine);
d->cpen = pen;
int cp = CapButt;
int jn = JoinMiter;
int ps = pen.style();
if (d->opacity < 1.0) {
QColor c = d->cpen.color();
c.setAlpha(qRound(c.alpha()*d->opacity));
d->cpen.setColor(c);
}
d->has_pen = (ps != Qt::NoPen);
d->has_alpha_pen = (pen.color().alpha() != 255);
switch (pen.capStyle()) {
case Qt::SquareCap:
cp = CapProjecting;
break;
case Qt::RoundCap:
cp = CapRound;
break;
case Qt::FlatCap:
default:
cp = CapButt;
break;
}
switch (pen.joinStyle()) {
case Qt::BevelJoin:
jn = JoinBevel;
break;
case Qt::RoundJoin:
jn = JoinRound;
break;
case Qt::MiterJoin:
default:
jn = JoinMiter;
break;
}
d->adapted_pen_origin = false;
char dashes[10]; // custom pen dashes
int dash_len = 0; // length of dash list
int xStyle = LineSolid;
/*
We are emulating Windows here. Windows treats cpen.width() == 1
(or 0) as a very special case. The fudge variable unifies this
case with the general case.
*/
qreal pen_width = pen.widthF();
int scale = qRound(pen_width < 1 ? 1 : pen_width);
int space = (pen_width < 1 && pen_width > 0 ? 1 : (2 * scale));
int dot = 1 * scale;
int dash = 4 * scale;
d->has_custom_pen = false;
switch (ps) {
case Qt::NoPen:
case Qt::SolidLine:
xStyle = LineSolid;
break;
case Qt::DashLine:
dashes[0] = dash;
dashes[1] = space;
dash_len = 2;
xStyle = LineOnOffDash;
break;
case Qt::DotLine:
dashes[0] = dot;
dashes[1] = space;
dash_len = 2;
xStyle = LineOnOffDash;
break;
case Qt::DashDotLine:
dashes[0] = dash;
dashes[1] = space;
dashes[2] = dot;
dashes[3] = space;
dash_len = 4;
xStyle = LineOnOffDash;
break;
case Qt::DashDotDotLine:
dashes[0] = dash;
dashes[1] = space;
dashes[2] = dot;
dashes[3] = space;
dashes[4] = dot;
dashes[5] = space;
dash_len = 6;
xStyle = LineOnOffDash;
break;
case Qt::CustomDashLine:
d->has_custom_pen = true;
break;
}
ulong mask = GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth
| GCCapStyle | GCJoinStyle | GCLineStyle;
XGCValues vals;
vals.graphics_exposures = false;
if (d->pdev_depth == 1) {
vals.foreground = qGray(pen.color().rgb()) > 127 ? 0 : 1;
vals.background = qGray(QColor(Qt::transparent).rgb()) > 127 ? 0 : 1;
} else if (d->pdev->devType() == QInternal::Pixmap && d->pdev_depth == 32
&& X11->use_xrender) {
vals.foreground = pen.color().rgba();
vals.background = QColor(Qt::transparent).rgba();
} else {
QColormap cmap = QColormap::instance(d->scrn);
vals.foreground = cmap.pixel(pen.color());
vals.background = cmap.pixel(QColor(Qt::transparent));
}
vals.line_width = qRound(pen.widthF());
vals.cap_style = cp;
vals.join_style = jn;
vals.line_style = xStyle;
XChangeGC(d->dpy, d->gc, mask, &vals);
if (dash_len) { // make dash list
XSetDashes(d->dpy, d->gc, 0, dashes, dash_len);
}
if (!d->has_clipping) { // if clipping is set the paintevent clip region is merged with the clip region
QRegion sysClip = systemClip();
if (!sysClip.isEmpty())
x11SetClipRegion(d->dpy, d->gc, 0, d->picture, sysClip);
else
x11ClearClipRegion(d->dpy, d->gc, 0, d->picture);
}
}
void QX11PaintEngine::updateBrush(const QBrush &brush, const QPointF &origin)
{
Q_D(QX11PaintEngine);
d->cbrush = brush;
d->bg_origin = origin;
d->adapted_brush_origin = false;
#if !defined(QT_NO_XRENDER)
d->current_brush = 0;
#endif
if (d->opacity < 1.0) {
QColor c = d->cbrush.color();
c.setAlpha(qRound(c.alpha()*d->opacity));
d->cbrush.setColor(c);
}
int s = FillSolid;
int bs = d->cbrush.style();
d->has_brush = (bs != Qt::NoBrush);
d->has_pattern = bs >= Qt::Dense1Pattern && bs <= Qt::DiagCrossPattern;
d->has_texture = bs == Qt::TexturePattern;
d->has_alpha_brush = brush.color().alpha() != 255;
d->has_alpha_texture = d->has_texture && d->cbrush.texture().hasAlphaChannel();
ulong mask = GCForeground | GCBackground | GCGraphicsExposures
| GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle;
XGCValues vals;
vals.graphics_exposures = false;
if (d->pdev_depth == 1) {
vals.foreground = qGray(d->cbrush.color().rgb()) > 127 ? 0 : 1;
vals.background = qGray(QColor(Qt::transparent).rgb()) > 127 ? 0 : 1;
} else if (X11->use_xrender && d->pdev->devType() == QInternal::Pixmap
&& d->pdev_depth == 32) {
vals.foreground = d->cbrush.color().rgba();
vals.background = QColor(Qt::transparent).rgba();
} else {
QColormap cmap = QColormap::instance(d->scrn);
vals.foreground = cmap.pixel(d->cbrush.color());
vals.background = cmap.pixel(QColor(Qt::transparent));
if (!X11->use_xrender && d->has_brush && !d->has_pattern && !brush.isOpaque()) {
QPixmap pattern = qt_patternForAlpha(brush.color().alpha(), d->scrn);
mask |= GCStipple;
vals.stipple = pattern.handle();
s = FillStippled;
d->adapted_brush_origin = true;
}
}
vals.cap_style = CapButt;
vals.join_style = JoinMiter;
vals.line_style = LineSolid;
if (d->has_pattern || d->has_texture) {
if (bs == Qt::TexturePattern) {
d->brush_pm = qt_toX11Pixmap(d->cbrush.texture());
#if !defined(QT_NO_XRENDER)
if (X11->use_xrender) {
XRenderPictureAttributes attrs;
attrs.repeat = true;
XRenderChangePicture(d->dpy, d->brush_pm.x11PictureHandle(), CPRepeat, &attrs);
QX11PixmapData *data = static_cast<QX11PixmapData*>(d->brush_pm.data.data());
if (data->mask_picture)
XRenderChangePicture(d->dpy, data->mask_picture, CPRepeat, &attrs);
}
#endif
} else {
d->brush_pm = qt_toX11Pixmap(qt_pixmapForBrush(bs, true));
}
d->brush_pm.x11SetScreen(d->scrn);
if (d->brush_pm.depth() == 1) {
mask |= GCStipple;
vals.stipple = d->brush_pm.handle();
s = FillStippled;
#if !defined(QT_NO_XRENDER)
if (X11->use_xrender) {
d->bitmap_texture = QPixmap(d->brush_pm.size());
d->bitmap_texture.fill(Qt::transparent);
d->bitmap_texture = qt_toX11Pixmap(d->bitmap_texture);
d->bitmap_texture.x11SetScreen(d->scrn);
::Picture src = X11->getSolidFill(d->scrn, d->cbrush.color());
XRenderComposite(d->dpy, PictOpSrc, src, d->brush_pm.x11PictureHandle(),
d->bitmap_texture.x11PictureHandle(),
0, 0, d->brush_pm.width(), d->brush_pm.height(),
0, 0, d->brush_pm.width(), d->brush_pm.height());
XRenderPictureAttributes attrs;
attrs.repeat = true;
XRenderChangePicture(d->dpy, d->bitmap_texture.x11PictureHandle(), CPRepeat, &attrs);
d->current_brush = d->bitmap_texture.x11PictureHandle();
}
#endif
} else {
mask |= GCTile;
#ifndef QT_NO_XRENDER
if (d->pdev_depth == 32 && d->brush_pm.depth() != 32) {
d->brush_pm.detach();
QX11PixmapData *brushData = static_cast<QX11PixmapData*>(d->brush_pm.data.data());
brushData->convertToARGB32();
}
#endif
vals.tile = (d->brush_pm.depth() == d->pdev_depth
? d->brush_pm.handle()
: static_cast<QX11PixmapData*>(d->brush_pm.data.data())->x11ConvertToDefaultDepth());
s = FillTiled;
#if !defined(QT_NO_XRENDER)
d->current_brush = d->cbrush.texture().x11PictureHandle();
#endif
}
mask |= GCTileStipXOrigin | GCTileStipYOrigin;
vals.ts_x_origin = qRound(origin.x());
vals.ts_y_origin = qRound(origin.y());
}
#if !defined(QT_NO_XRENDER)
else if (d->has_alpha_brush) {
d->current_brush = X11->getSolidFill(d->scrn, d->cbrush.color());
}
#endif
vals.fill_style = s;
XChangeGC(d->dpy, d->gc_brush, mask, &vals);
if (!d->has_clipping) {
QRegion sysClip = systemClip();
if (!sysClip.isEmpty())
x11SetClipRegion(d->dpy, d->gc_brush, 0, d->picture, sysClip);
else
x11ClearClipRegion(d->dpy, d->gc_brush, 0, d->picture);
}
}
void QX11PaintEngine::drawEllipse(const QRectF &rect)
{
QRect aligned = rect.toAlignedRect();
if (aligned == rect)
drawEllipse(aligned);
else
QPaintEngine::drawEllipse(rect);
}
void QX11PaintEngine::drawEllipse(const QRect &rect)
{
Q_D(QX11PaintEngine);
QRect devclip(SHRT_MIN, SHRT_MIN, SHRT_MAX*2 - 1, SHRT_MAX*2 - 1);
QRect r(rect);
if (d->txop < QTransform::TxRotate) {
r = d->matrix.mapRect(rect);
} else if (d->txop == QTransform::TxRotate && rect.width() == rect.height()) {
QPainterPath path;
path.addEllipse(rect);
r = d->matrix.map(path).boundingRect().toRect();
}
if (d->has_alpha_brush || d->has_alpha_pen || d->has_custom_pen || (d->render_hints & QPainter::Antialiasing)
|| d->has_alpha_texture || devclip.intersected(r) != r
|| (d->has_complex_xform
&& !(d->has_non_scaling_xform && rect.width() == rect.height())))
{
QPainterPath path;
path.addEllipse(rect);
drawPath(path);
return;
}
int x = r.x();
int y = r.y();
int w = r.width();
int h = r.height();
if (w < 1 || h < 1)
return;
if (w == 1 && h == 1) {
XDrawPoint(d->dpy, d->hd, d->has_pen ? d->gc : d->gc_brush, x, y);
return;
}
d->setupAdaptedOrigin(rect.topLeft());
if (d->has_brush) { // draw filled ellipse
XFillArc(d->dpy, d->hd, d->gc_brush, x, y, w, h, 0, 360*64);
if (!d->has_pen) // make smoother outline
XDrawArc(d->dpy, d->hd, d->gc_brush, x, y, w-1, h-1, 0, 360*64);
}
if (d->has_pen) // draw outline
XDrawArc(d->dpy, d->hd, d->gc, x, y, w, h, 0, 360*64);
d->resetAdaptedOrigin();
}
void QX11PaintEnginePrivate::fillPolygon_translated(const QPointF *polygonPoints, int pointCount,
QX11PaintEnginePrivate::GCMode gcMode,
QPaintEngine::PolygonDrawMode mode)
{
QVarLengthArray<QPointF> translated_points(pointCount);
QPointF offset(matrix.dx(), matrix.dy());
qreal offs = adjust_coords ? aliasedCoordinateDelta : 0.0;
if (!X11->use_xrender || !(render_hints & QPainter::Antialiasing))
offset += QPointF(aliasedCoordinateDelta, aliasedCoordinateDelta);
for (int i = 0; i < pointCount; ++i) {
translated_points[i] = polygonPoints[i] + offset;
translated_points[i].rx() = qRound(translated_points[i].x()) + offs;
translated_points[i].ry() = qRound(translated_points[i].y()) + offs;
}
fillPolygon_dev(translated_points.data(), pointCount, gcMode, mode);
}
#ifndef QT_NO_XRENDER
static void qt_XRenderCompositeTrapezoids(Display *dpy,
int op,
Picture src,
Picture dst,
_Xconst XRenderPictFormat *maskFormat,
int xSrc,
int ySrc,
const XTrapezoid *traps, int size)
{
const int MAX_TRAPS = 50000;
while (size) {
int to_draw = size;
if (to_draw > MAX_TRAPS)
to_draw = MAX_TRAPS;
XRenderCompositeTrapezoids(dpy, op, src, dst,
maskFormat,
xSrc, ySrc,
traps, to_draw);
size -= to_draw;
traps += to_draw;
}
}
#endif
void QX11PaintEnginePrivate::fillPolygon_dev(const QPointF *polygonPoints, int pointCount,
QX11PaintEnginePrivate::GCMode gcMode,
QPaintEngine::PolygonDrawMode mode)
{
Q_Q(QX11PaintEngine);
int clippedCount = 0;
qt_float_point *clippedPoints = 0;
#ifndef QT_NO_XRENDER
//can change if we switch to pen if gcMode != BrushGC
bool has_fill_texture = has_texture;
bool has_fill_pattern = has_pattern;
::Picture src;
#endif
QBrush fill;
GC fill_gc;
if (gcMode == BrushGC) {
fill = cbrush;
fill_gc = gc_brush;
#ifndef QT_NO_XRENDER
if (current_brush)
src = current_brush;
else
src = X11->getSolidFill(scrn, fill.color());
#endif
} else {
fill = QBrush(cpen.brush());
fill_gc = gc;
#ifndef QT_NO_XRENDER
//we use the pens brush
has_fill_texture = (fill.style() == Qt::TexturePattern);
has_fill_pattern = (fill.style() >= Qt::Dense1Pattern && fill.style() <= Qt::DiagCrossPattern);
if (has_fill_texture)
src = fill.texture().x11PictureHandle();
else if (has_fill_pattern)
src = getPatternFill(scrn, fill);
else
src = X11->getSolidFill(scrn, fill.color());
#endif
}
polygonClipper.clipPolygon((qt_float_point *) polygonPoints, pointCount,
&clippedPoints, &clippedCount);
#ifndef QT_NO_XRENDER
bool solid_fill = fill.color().alpha() == 255;
if (has_fill_texture && fill.texture().depth() == 1 && solid_fill) {
has_fill_texture = false;
has_fill_pattern = true;
}
bool antialias = render_hints & QPainter::Antialiasing;
if (X11->use_xrender
&& picture
&& !has_fill_pattern
&& (clippedCount > 0)
&& (fill.style() != Qt::NoBrush)
&& ((has_fill_texture && fill.texture().hasAlpha()) || antialias || !solid_fill || has_alpha_pen != has_alpha_brush))
{
QRect br = tessellator->tessellate((QPointF *)clippedPoints, clippedCount,
mode == QPaintEngine::WindingMode);
if (tessellator->size > 0) {
XRenderPictureAttributes attrs;
attrs.poly_edge = antialias ? PolyEdgeSmooth : PolyEdgeSharp;
XRenderChangePicture(dpy, picture, CPPolyEdge, &attrs);
int x_offset = int(XFixedToDouble(tessellator->traps[0].left.p1.x) - bg_origin.x());
int y_offset = int(XFixedToDouble(tessellator->traps[0].left.p1.y) - bg_origin.y());
qt_XRenderCompositeTrapezoids(dpy, composition_mode, src, picture,
antialias
? XRenderFindStandardFormat(dpy, PictStandardA8)
: XRenderFindStandardFormat(dpy, PictStandardA1),
x_offset, y_offset,
tessellator->traps, tessellator->size);
tessellator->done();
}
} else
#endif
if (fill.style() != Qt::NoBrush) {
if (clippedCount > 200000) {
QPolygon poly;
for (int i = 0; i < clippedCount; ++i)
poly << QPoint(qFloor(clippedPoints[i].x), qFloor(clippedPoints[i].y));
const QRect bounds = poly.boundingRect();
const QRect aligned = bounds
& QRect(QPoint(), QSize(pdev->width(), pdev->height()));
QImage img(aligned.size(), QImage::Format_ARGB32_Premultiplied);
img.fill(0);
QPainter painter(&img);
painter.translate(-aligned.x(), -aligned.y());
painter.setPen(Qt::NoPen);
painter.setBrush(fill);
if (gcMode == BrushGC)
painter.setBrushOrigin(q->painter()->brushOrigin());
painter.drawPolygon(poly);
painter.end();
q->drawImage(aligned, img, img.rect(), Qt::AutoColor);
} else if (clippedCount > 0) {
QVarLengthArray<XPoint> xpoints(clippedCount);
for (int i = 0; i < clippedCount; ++i) {
xpoints[i].x = qFloor(clippedPoints[i].x);
xpoints[i].y = qFloor(clippedPoints[i].y);
}
if (mode == QPaintEngine::WindingMode)
XSetFillRule(dpy, fill_gc, WindingRule);
setupAdaptedOrigin(QPoint(xpoints[0].x, xpoints[0].y));
XFillPolygon(dpy, hd, fill_gc,
xpoints.data(), clippedCount,
mode == QPaintEngine::ConvexMode ? Convex : Complex, CoordModeOrigin);
resetAdaptedOrigin();
if (mode == QPaintEngine::WindingMode)
XSetFillRule(dpy, fill_gc, EvenOddRule);
}
}
}
void QX11PaintEnginePrivate::strokePolygon_translated(const QPointF *polygonPoints, int pointCount, bool close)
{
QVarLengthArray<QPointF> translated_points(pointCount);
QPointF offset(matrix.dx(), matrix.dy());
for (int i = 0; i < pointCount; ++i)
translated_points[i] = polygonPoints[i] + offset;
strokePolygon_dev(translated_points.data(), pointCount, close);
}
void QX11PaintEnginePrivate::strokePolygon_dev(const QPointF *polygonPoints, int pointCount, bool close)
{
int clippedCount = 0;
qt_float_point *clippedPoints = 0;
polygonClipper.clipPolygon((qt_float_point *) polygonPoints, pointCount,
&clippedPoints, &clippedCount, close);
if (clippedCount > 0) {
QVarLengthArray<XPoint> xpoints(clippedCount);
for (int i = 0; i < clippedCount; ++i) {
xpoints[i].x = qRound(clippedPoints[i].x + aliasedCoordinateDelta);
xpoints[i].y = qRound(clippedPoints[i].y + aliasedCoordinateDelta);
}
uint numberPoints = qMin(clippedCount, xlibMaxLinePoints);
XPoint *pts = xpoints.data();
XDrawLines(dpy, hd, gc, pts, numberPoints, CoordModeOrigin);
pts += numberPoints;
clippedCount -= numberPoints;
numberPoints = qMin(clippedCount, xlibMaxLinePoints-1);
while (clippedCount) {
XDrawLines(dpy, hd, gc, pts-1, numberPoints+1, CoordModeOrigin);
pts += numberPoints;
clippedCount -= numberPoints;
numberPoints = qMin(clippedCount, xlibMaxLinePoints-1);
}
}
}
void QX11PaintEngine::drawPolygon(const QPointF *polygonPoints, int pointCount, PolygonDrawMode mode)
{
Q_D(QX11PaintEngine);
if (d->use_path_fallback) {
QPainterPath path(polygonPoints[0]);
for (int i = 1; i < pointCount; ++i)
path.lineTo(polygonPoints[i]);
if (mode == PolylineMode) {
QBrush oldBrush = d->cbrush;
d->cbrush = QBrush(Qt::NoBrush);
path.setFillRule(Qt::WindingFill);
drawPath(path);
d->cbrush = oldBrush;
} else {
path.setFillRule(mode == OddEvenMode ? Qt::OddEvenFill : Qt::WindingFill);
path.closeSubpath();
drawPath(path);
}
return;
}
if (mode != PolylineMode && d->has_brush)
d->fillPolygon_translated(polygonPoints, pointCount, QX11PaintEnginePrivate::BrushGC, mode);
if (d->has_pen)
d->strokePolygon_translated(polygonPoints, pointCount, mode != PolylineMode);
}
void QX11PaintEnginePrivate::fillPath(const QPainterPath &path, QX11PaintEnginePrivate::GCMode gc_mode, bool transform)
{
qreal offs = adjust_coords ? aliasedCoordinateDelta : 0.0;
QPainterPath clippedPath;
QPainterPath clipPath;
clipPath.addRect(polygonClipper.boundingRect());
if (transform)
clippedPath = (path*matrix).intersected(clipPath);
else
clippedPath = path.intersected(clipPath);
QList<QPolygonF> polys = clippedPath.toFillPolygons();
for (int i = 0; i < polys.size(); ++i) {
QVarLengthArray<QPointF> translated_points(polys.at(i).size());
for (int j = 0; j < polys.at(i).size(); ++j) {
translated_points[j] = polys.at(i).at(j);
if (!X11->use_xrender || !(render_hints & QPainter::Antialiasing)) {
translated_points[j].rx() = qRound(translated_points[j].rx() + aliasedCoordinateDelta) + offs;
translated_points[j].ry() = qRound(translated_points[j].ry() + aliasedCoordinateDelta) + offs;
}
}
fillPolygon_dev(translated_points.data(), polys.at(i).size(), gc_mode,
path.fillRule() == Qt::OddEvenFill ? QPaintEngine::OddEvenMode : QPaintEngine::WindingMode);
}
}
void QX11PaintEngine::drawPath(const QPainterPath &path)
{
Q_D(QX11PaintEngine);
if (path.isEmpty())
return;
QTransform old_matrix = d->matrix;
if (d->has_brush)
d->fillPath(path, QX11PaintEnginePrivate::BrushGC, true);
if (d->has_pen
&& ((X11->use_xrender && (d->has_alpha_pen || (d->render_hints & QPainter::Antialiasing)))
|| (!d->cpen.isCosmetic() && d->txop > QTransform::TxTranslate
&& !d->has_non_scaling_xform)
|| (d->cpen.style() == Qt::CustomDashLine))) {
QPainterPathStroker stroker;
if (d->cpen.style() == Qt::CustomDashLine) {
stroker.setDashPattern(d->cpen.dashPattern());
stroker.setDashOffset(d->cpen.dashOffset());
} else {
stroker.setDashPattern(d->cpen.style());
}
stroker.setCapStyle(d->cpen.capStyle());
stroker.setJoinStyle(d->cpen.joinStyle());
QPainterPath stroke;
qreal width = d->cpen.widthF();
QPolygonF poly;
QRectF deviceRect(0, 0, d->pdev->width(), d->pdev->height());
// necessary to get aliased alphablended primitives to be drawn correctly
if (d->cpen.isCosmetic() || d->has_scaling_xform) {
if (d->cpen.isCosmetic())
stroker.setWidth(width == 0 ? 1 : width);
else
stroker.setWidth(width * d->xform_scale);
stroker.d_ptr->stroker.setClipRect(deviceRect);
stroke = stroker.createStroke(path * d->matrix);
if (stroke.isEmpty())
return;
stroke.setFillRule(Qt::WindingFill);
d->fillPath(stroke, QX11PaintEnginePrivate::PenGC, false);
} else {
stroker.setWidth(width);
stroker.d_ptr->stroker.setClipRect(d->matrix.inverted().mapRect(deviceRect));
stroke = stroker.createStroke(path);
if (stroke.isEmpty())
return;
stroke.setFillRule(Qt::WindingFill);
d->fillPath(stroke, QX11PaintEnginePrivate::PenGC, true);
}
} else if (d->has_pen) {
// if we have a cosmetic pen - use XDrawLine() for speed
QList<QPolygonF> polys = path.toSubpathPolygons(d->matrix);
for (int i = 0; i < polys.size(); ++i)
d->strokePolygon_dev(polys.at(i).data(), polys.at(i).size(), false);
}
}
Q_GUI_EXPORT void qt_x11_drawImage(const QRect &rect, const QPoint &pos, const QImage &image,
Drawable hd, GC gc, Display *dpy, Visual *visual, int depth)
{
Q_ASSERT(image.format() == QImage::Format_RGB32);
Q_ASSERT(image.depth() == 32);
XImage *xi;
// Note: this code assumes either RGB or BGR, 8 bpc server layouts
const uint red_mask = (uint) visual->red_mask;
bool bgr_layout = (red_mask == 0xff);
const int w = rect.width();
const int h = rect.height();
QImage im;
int image_byte_order = ImageByteOrder(X11->display);
if ((QSysInfo::ByteOrder == QSysInfo::BigEndian && ((image_byte_order == LSBFirst) || bgr_layout))
|| (image_byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::LittleEndian)
|| (image_byte_order == LSBFirst && bgr_layout))
{
im = image.copy(rect);
const int iw = im.bytesPerLine() / 4;
uint *data = (uint *)im.bits();
for (int i=0; i < h; i++) {
uint *p = data;
uint *end = p + w;
if (bgr_layout && image_byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::LittleEndian) {
while (p < end) {
*p = ((*p << 8) & 0xffffff00) | ((*p >> 24) & 0x000000ff);
p++;
}
} else if ((image_byte_order == LSBFirst && QSysInfo::ByteOrder == QSysInfo::BigEndian)
|| (image_byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::LittleEndian)) {
while (p < end) {
*p = ((*p << 24) & 0xff000000) | ((*p << 8) & 0x00ff0000)
| ((*p >> 8) & 0x0000ff00) | ((*p >> 24) & 0x000000ff);
p++;
}
} else if ((image_byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::BigEndian)
|| (image_byte_order == LSBFirst && bgr_layout))
{
while (p < end) {
*p = ((*p << 16) & 0x00ff0000) | ((*p >> 16) & 0x000000ff)
| ((*p ) & 0xff00ff00);
p++;
}
}
data += iw;
}
xi = XCreateImage(dpy, visual, depth, ZPixmap,
0, (char *) im.bits(), w, h, 32, im.bytesPerLine());
} else {
xi = XCreateImage(dpy, visual, depth, ZPixmap,
0, (char *) image.scanLine(rect.y())+rect.x()*sizeof(uint), w, h, 32, image.bytesPerLine());
}
XPutImage(dpy, hd, gc, xi, 0, 0, pos.x(), pos.y(), w, h);
xi->data = 0; // QImage owns these bits
XDestroyImage(xi);
}
void QX11PaintEngine::drawImage(const QRectF &r, const QImage &image, const QRectF &sr, Qt::ImageConversionFlags flags)
{
Q_D(QX11PaintEngine);
if (image.format() == QImage::Format_RGB32
&& d->pdev_depth >= 24 && image.depth() == 32
&& r.size() == sr.size())
{
int sx = qRound(sr.x());
int sy = qRound(sr.y());
int x = qRound(r.x());
int y = qRound(r.y());
int w = qRound(r.width());
int h = qRound(r.height());
qt_x11_drawImage(QRect(sx, sy, w, h), QPoint(x, y), image, d->hd, d->gc, d->dpy,
(Visual *)d->xinfo->visual(), d->pdev_depth);
} else {
QPaintEngine::drawImage(r, image, sr, flags);
}
}
void QX11PaintEngine::drawPixmap(const QRectF &r, const QPixmap &px, const QRectF &_sr)
{
Q_D(QX11PaintEngine);
QRectF sr = _sr;
int x = qRound(r.x());
int y = qRound(r.y());
int sx = qRound(sr.x());
int sy = qRound(sr.y());
int sw = qRound(sr.width());
int sh = qRound(sr.height());
QPixmap pixmap = qt_toX11Pixmap(px);
if ((d->xinfo && d->xinfo->screen() != pixmap.x11Info().screen())
|| (pixmap.x11Info().screen() != DefaultScreen(X11->display))) {
QPixmap* p = const_cast<QPixmap *>(&pixmap);
p->x11SetScreen(d->xinfo ? d->xinfo->screen() : DefaultScreen(X11->display));
}
QPixmap::x11SetDefaultScreen(pixmap.x11Info().screen());
#ifndef QT_NO_XRENDER
::Picture src_pict = static_cast<QX11PixmapData*>(pixmap.data.data())->picture;
if (src_pict && d->picture) {
const int pDepth = pixmap.depth();
if (pDepth == 1 && (d->has_alpha_pen)) {
qt_render_bitmap(d->dpy, d->scrn, src_pict, d->picture,
sx, sy, x, y, sw, sh, d->cpen);
return;
} else if (pDepth != 1 && (pDepth == 32 || pDepth != d->pdev_depth)) {
XRenderComposite(d->dpy, d->composition_mode,
src_pict, 0, d->picture, sx, sy, 0, 0, x, y, sw, sh);
return;
}
}
#endif
bool mono_src = pixmap.depth() == 1;
bool mono_dst = d->pdev_depth == 1;
bool restore_clip = false;
if (static_cast<QX11PixmapData*>(pixmap.data.data())->x11_mask) { // pixmap has a mask
QBitmap comb(sw, sh);
GC cgc = XCreateGC(d->dpy, comb.handle(), 0, 0);
XSetForeground(d->dpy, cgc, 0);
XFillRectangle(d->dpy, comb.handle(), cgc, 0, 0, sw, sh);
XSetBackground(d->dpy, cgc, 0);
XSetForeground(d->dpy, cgc, 1);
if (!d->crgn.isEmpty()) {
int num;
XRectangle *rects = (XRectangle *)qt_getClipRects(d->crgn, num);
XSetClipRectangles(d->dpy, cgc, -x, -y, rects, num, Unsorted);
} else if (d->has_clipping) {
XSetClipRectangles(d->dpy, cgc, 0, 0, 0, 0, Unsorted);
}
XSetFillStyle(d->dpy, cgc, FillOpaqueStippled);
XSetTSOrigin(d->dpy, cgc, -sx, -sy);
XSetStipple(d->dpy, cgc,
static_cast<QX11PixmapData*>(pixmap.data.data())->x11_mask);
XFillRectangle(d->dpy, comb.handle(), cgc, 0, 0, sw, sh);
XFreeGC(d->dpy, cgc);
XSetClipOrigin(d->dpy, d->gc, x, y);
XSetClipMask(d->dpy, d->gc, comb.handle());
restore_clip = true;
}
if (mono_src) {
if (!d->crgn.isEmpty()) {
Pixmap comb = XCreatePixmap(d->dpy, d->hd, sw, sh, 1);
GC cgc = XCreateGC(d->dpy, comb, 0, 0);
XSetForeground(d->dpy, cgc, 0);
XFillRectangle(d->dpy, comb, cgc, 0, 0, sw, sh);
int num;
XRectangle *rects = (XRectangle *)qt_getClipRects(d->crgn, num);
XSetClipRectangles(d->dpy, cgc, -x, -y, rects, num, Unsorted);
XCopyArea(d->dpy, pixmap.handle(), comb, cgc, sx, sy, sw, sh, 0, 0);
XFreeGC(d->dpy, cgc);
XSetClipMask(d->dpy, d->gc, comb);
XSetClipOrigin(d->dpy, d->gc, x, y);
XFreePixmap(d->dpy, comb);
} else {
XSetClipMask(d->dpy, d->gc, pixmap.handle());
XSetClipOrigin(d->dpy, d->gc, x - sx, y - sy);
}
if (mono_dst) {
XSetForeground(d->dpy, d->gc, qGray(d->cpen.color().rgb()) > 127 ? 0 : 1);
} else {
QColormap cmap = QColormap::instance(d->scrn);
XSetForeground(d->dpy, d->gc, cmap.pixel(d->cpen.color()));
}
XFillRectangle(d->dpy, d->hd, d->gc, x, y, sw, sh);
restore_clip = true;
} else {
XCopyArea(d->dpy, pixmap.handle(), d->hd, d->gc, sx, sy, sw, sh, x, y);
}
if (d->pdev->devType() == QInternal::Pixmap) {
const QPixmap *px = static_cast<const QPixmap*>(d->pdev);
Pixmap src_mask = static_cast<QX11PixmapData*>(pixmap.data.data())->x11_mask;
Pixmap dst_mask = static_cast<QX11PixmapData*>(px->data.data())->x11_mask;
if (dst_mask) {
GC cgc = XCreateGC(d->dpy, dst_mask, 0, 0);
if (src_mask) { // copy src mask into dst mask
XCopyArea(d->dpy, src_mask, dst_mask, cgc, sx, sy, sw, sh, x, y);
} else { // no src mask, but make sure the area copied is opaque in dest
XSetBackground(d->dpy, cgc, 0);
XSetForeground(d->dpy, cgc, 1);
XFillRectangle(d->dpy, dst_mask, cgc, x, y, sw, sh);
}
XFreeGC(d->dpy, cgc);
}
}
if (restore_clip) {
XSetClipOrigin(d->dpy, d->gc, 0, 0);
int num;
XRectangle *rects = (XRectangle *)qt_getClipRects(d->crgn, num);
if (num == 0)
XSetClipMask(d->dpy, d->gc, XNone);
else
XSetClipRectangles(d->dpy, d->gc, 0, 0, rects, num, Unsorted);
}
}
void QX11PaintEngine::updateMatrix(const QTransform &mtx)
{
Q_D(QX11PaintEngine);
d->txop = mtx.type();
d->matrix = mtx;
d->has_complex_xform = (d->txop > QTransform::TxTranslate);
extern bool qt_scaleForTransform(const QTransform &transform, qreal *scale);
bool scaling = qt_scaleForTransform(d->matrix, &d->xform_scale);
d->has_scaling_xform = scaling && d->xform_scale != 1.0;
d->has_non_scaling_xform = scaling && d->xform_scale == 1.0;
}
/*
NB! the clip region is expected to be in dev coordinates
*/
void QX11PaintEngine::updateClipRegion_dev(const QRegion &clipRegion, Qt::ClipOperation op)
{
Q_D(QX11PaintEngine);
QRegion sysClip = systemClip();
if (op == Qt::NoClip) {
d->has_clipping = false;
d->crgn = sysClip;
if (!sysClip.isEmpty()) {
x11SetClipRegion(d->dpy, d->gc, d->gc_brush, d->picture, sysClip);
} else {
x11ClearClipRegion(d->dpy, d->gc, d->gc_brush, d->picture);
}
return;
}
switch (op) {
case Qt::IntersectClip:
if (d->has_clipping) {
d->crgn &= clipRegion;
break;
}
// fall through
case Qt::ReplaceClip:
if (!sysClip.isEmpty())
d->crgn = clipRegion.intersected(sysClip);
else
d->crgn = clipRegion;
break;
case Qt::UniteClip:
d->crgn |= clipRegion;
if (!sysClip.isEmpty())
d->crgn = d->crgn.intersected(sysClip);
break;
default:
break;
}
d->has_clipping = true;
x11SetClipRegion(d->dpy, d->gc, d->gc_brush, d->picture, d->crgn);
}
void QX11PaintEngine::updateFont(const QFont &)
{
}
Qt::HANDLE QX11PaintEngine::handle() const
{
Q_D(const QX11PaintEngine);
Q_ASSERT(isActive());
Q_ASSERT(d->hd);
return d->hd;
}
extern void qt_draw_tile(QPaintEngine *, qreal, qreal, qreal, qreal, const QPixmap &,
qreal, qreal);
void QX11PaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &p)
{
int x = qRound(r.x());
int y = qRound(r.y());
int w = qRound(r.width());
int h = qRound(r.height());
int sx = qRound(p.x());
int sy = qRound(p.y());
bool mono_src = pixmap.depth() == 1;
Q_D(QX11PaintEngine);
if ((d->xinfo && d->xinfo->screen() != pixmap.x11Info().screen())
|| (pixmap.x11Info().screen() != DefaultScreen(X11->display))) {
QPixmap* p = const_cast<QPixmap *>(&pixmap);
p->x11SetScreen(d->xinfo ? d->xinfo->screen() : DefaultScreen(X11->display));
}
QPixmap::x11SetDefaultScreen(pixmap.x11Info().screen());
#ifndef QT_NO_XRENDER
if (X11->use_xrender && d->picture && pixmap.x11PictureHandle()) {
#if 0
// ### Qt 5: enable this
XRenderPictureAttributes attrs;
attrs.repeat = true;
XRenderChangePicture(d->dpy, pixmap.x11PictureHandle(), CPRepeat, &attrs);
if (mono_src) {
qt_render_bitmap(d->dpy, d->scrn, pixmap.x11PictureHandle(), d->picture,
sx, sy, x, y, w, h, d->cpen);
} else {
XRenderComposite(d->dpy, d->composition_mode,
pixmap.x11PictureHandle(), XNone, d->picture,
sx, sy, 0, 0, x, y, w, h);
}
#else
const int numTiles = (w / pixmap.width()) * (h / pixmap.height());
if (numTiles < 100) {
// this is essentially qt_draw_tile(), inlined for
// the XRenderComposite call
int yPos, xPos, drawH, drawW, yOff, xOff;
yPos = y;
yOff = sy;
while(yPos < y + h) {
drawH = pixmap.height() - yOff; // Cropping first row
if (yPos + drawH > y + h) // Cropping last row
drawH = y + h - yPos;
xPos = x;
xOff = sx;
while(xPos < x + w) {
drawW = pixmap.width() - xOff; // Cropping first column
if (xPos + drawW > x + w) // Cropping last column
drawW = x + w - xPos;
if (mono_src) {
qt_render_bitmap(d->dpy, d->scrn, pixmap.x11PictureHandle(), d->picture,
xOff, yOff, xPos, yPos, drawW, drawH, d->cpen);
} else {
XRenderComposite(d->dpy, d->composition_mode,
pixmap.x11PictureHandle(), XNone, d->picture,
xOff, yOff, 0, 0, xPos, yPos, drawW, drawH);
}
xPos += drawW;
xOff = 0;
}
yPos += drawH;
yOff = 0;
}
} else {
w = qMin(w, d->pdev->width() - x);
h = qMin(h, d->pdev->height() - y);
if (w <= 0 || h <= 0)
return;
const int pw = w + sx;
const int ph = h + sy;
QPixmap pm(pw, ph);
if (pixmap.hasAlpha() || mono_src)
pm.fill(Qt::transparent);
const int mode = pixmap.hasAlpha() ? PictOpOver : PictOpSrc;
const ::Picture pmPicture = pm.x11PictureHandle();
// first tile
XRenderComposite(d->dpy, mode,
pixmap.x11PictureHandle(), XNone, pmPicture,
0, 0, 0, 0, 0, 0, qMin(pw, pixmap.width()), qMin(ph, pixmap.height()));
// first row of tiles
int xPos = pixmap.width();
const int sh = qMin(ph, pixmap.height());
while (xPos < pw) {
const int sw = qMin(xPos, pw - xPos);
XRenderComposite(d->dpy, mode,
pmPicture, XNone, pmPicture,
0, 0, 0, 0, xPos, 0, sw, sh);
xPos *= 2;
}
// remaining rows
int yPos = pixmap.height();
const int sw = pw;
while (yPos < ph) {
const int sh = qMin(yPos, ph - yPos);
XRenderComposite(d->dpy, mode,
pmPicture, XNone, pmPicture,
0, 0, 0, 0, 0, yPos, sw, sh);
yPos *= 2;
}
// composite
if (mono_src)
qt_render_bitmap(d->dpy, d->scrn, pmPicture, d->picture,
sx, sy, x, y, w, h, d->cpen);
else
XRenderComposite(d->dpy, d->composition_mode,
pmPicture, XNone, d->picture,
sx, sy, 0, 0, x, y, w, h);
}
#endif
} else
#endif // !QT_NO_XRENDER
if (pixmap.depth() > 1 && !static_cast<QX11PixmapData*>(pixmap.data.data())->x11_mask) {
XSetTile(d->dpy, d->gc, pixmap.handle());
XSetFillStyle(d->dpy, d->gc, FillTiled);
XSetTSOrigin(d->dpy, d->gc, x-sx, y-sy);
XFillRectangle(d->dpy, d->hd, d->gc, x, y, w, h);
XSetTSOrigin(d->dpy, d->gc, 0, 0);
XSetFillStyle(d->dpy, d->gc, FillSolid);
} else {
qt_draw_tile(this, x, y, w, h, pixmap, sx, sy);
}
}
void QX11PaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem)
{
const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem);
switch(ti.fontEngine->type()) {
case QFontEngine::TestFontEngine:
case QFontEngine::Box:
d_func()->drawBoxTextItem(p, ti);
break;
case QFontEngine::XLFD:
drawXLFD(p, ti);
break;
#ifndef QT_NO_FONTCONFIG
case QFontEngine::Freetype:
drawFreetype(p, ti);
break;
#endif
default:
Q_ASSERT(false);
}
}
void QX11PaintEngine::drawXLFD(const QPointF &p, const QTextItemInt &ti)
{
Q_D(QX11PaintEngine);
if (d->txop > QTransform::TxTranslate) {
// XServer or font don't support server side transformations, need to do it by hand
QPaintEngine::drawTextItem(p, ti);
return;
}
if (!ti.glyphs.numGlyphs)
return;
QVarLengthArray<QFixedPoint> positions;
QVarLengthArray<glyph_t> glyphs;
QTransform matrix = d->matrix;
matrix.translate(p.x(), p.y());
ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions);
if (glyphs.size() == 0)
return;
QFontEngineXLFD *xlfd = static_cast<QFontEngineXLFD *>(ti.fontEngine);
Qt::HANDLE font_id = xlfd->fontStruct()->fid;
XSetFont(d->dpy, d->gc, font_id);
const QFixed offs = QFixed::fromReal(aliasedCoordinateDelta);
for (int i = 0; i < glyphs.size(); i++) {
int xp = qRound(positions[i].x + offs);
int yp = qRound(positions[i].y + offs);
if (xp < SHRT_MAX && xp > SHRT_MIN && yp > SHRT_MIN && yp < SHRT_MAX) {
XChar2b ch;
ch.byte1 = glyphs[i] >> 8;
ch.byte2 = glyphs[i] & 0xff;
XDrawString16(d->dpy, d->hd, d->gc, xp, yp, &ch, 1);
}
}
}
#ifndef QT_NO_FONTCONFIG
static QPainterPath path_for_glyphs(const QVarLengthArray<glyph_t> &glyphs,
const QVarLengthArray<QFixedPoint> &positions,
const QFontEngineFT *ft)
{
QPainterPath path;
path.setFillRule(Qt::WindingFill);
ft->lockFace();
int i = 0;
while (i < glyphs.size()) {
QFontEngineFT::Glyph *glyph = ft->loadGlyph(glyphs[i], QFontEngineFT::Format_Mono);
// #### fix case where we don't get a glyph
if (!glyph)
break;
Q_ASSERT(glyph->format == QFontEngineFT::Format_Mono);
int n = 0;
int h = glyph->height;
int xp = qRound(positions[i].x);
int yp = qRound(positions[i].y);
xp += glyph->x;
yp += -glyph->y + glyph->height;
int pitch = ((glyph->width + 31) & ~31) >> 3;
uchar *src = glyph->data;
while (h--) {
for (int x = 0; x < glyph->width; ++x) {
bool set = src[x >> 3] & (0x80 >> (x & 7));
if (set) {
QRect r(xp + x, yp - h, 1, 1);
while (x < glyph->width-1 && src[(x+1) >> 3] & (0x80 >> ((x+1) & 7))) {
++x;
r.setRight(r.right()+1);
}
path.addRect(r);
++n;
}
}
src += pitch;
}
++i;
}
ft->unlockFace();
return path;
}
void QX11PaintEngine::drawFreetype(const QPointF &p, const QTextItemInt &ti)
{
Q_D(QX11PaintEngine);
if (!ti.glyphs.numGlyphs)
return;
QFontEngineX11FT *ft = static_cast<QFontEngineX11FT *>(ti.fontEngine);
if (!d->cpen.isSolid()) {
QPaintEngine::drawTextItem(p, ti);
return;
}
const bool xrenderPath = (X11->use_xrender
&& !(d->pdev->devType() == QInternal::Pixmap
&& static_cast<const QPixmap *>(d->pdev)->data->pixelType() == QPixmapData::BitmapType));
QVarLengthArray<QFixedPoint> positions;
QVarLengthArray<glyph_t> glyphs;
QTransform matrix;
if (xrenderPath)
matrix = d->matrix;
matrix.translate(p.x(), p.y());
ft->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions);
if (glyphs.count() == 0)
return;
#ifndef QT_NO_XRENDER
QFontEngineFT::QGlyphSet *set = ft->defaultGlyphs();
if (d->txop >= QTransform::TxScale && xrenderPath)
set = ft->loadTransformedGlyphSet(d->matrix);
if (!set || set->outline_drawing
|| !ft->loadGlyphs(set, glyphs.data(), glyphs.size(), QFontEngineFT::Format_Render))
{
QPaintEngine::drawTextItem(p, ti);
return;
}
if (xrenderPath) {
GlyphSet glyphSet = set->id;
const QColor &pen = d->cpen.color();
::Picture src = X11->getSolidFill(d->scrn, pen);
XRenderPictFormat *maskFormat = 0;
if (ft->xglyph_format != PictStandardA1)
maskFormat = XRenderFindStandardFormat(X11->display, ft->xglyph_format);
enum { t_min = SHRT_MIN, t_max = SHRT_MAX };
int i = 0;
for (; i < glyphs.size()
&& (positions[i].x < t_min || positions[i].x > t_max
|| positions[i].y < t_min || positions[i].y > t_max);
++i)
;
if (i >= glyphs.size())
return;
++i;
QFixed xp = positions[i - 1].x;
QFixed yp = positions[i - 1].y;
QFixed offs = QFixed::fromReal(aliasedCoordinateDelta);
XGlyphElt32 elt;
elt.glyphset = glyphSet;
elt.chars = &glyphs[i - 1];
elt.nchars = 1;
elt.xOff = qRound(xp + offs);
elt.yOff = qRound(yp + offs);
for (; i < glyphs.size(); ++i) {
if (positions[i].x < t_min || positions[i].x > t_max
|| positions[i].y < t_min || positions[i].y > t_max) {
break;
}
QFontEngineFT::Glyph *g = ft->cachedGlyph(glyphs[i - 1]);
if (g
&& positions[i].x == xp + g->advance
&& positions[i].y == yp
&& elt.nchars < 253 // don't draw more than 253 characters as some X servers
// hang with it
) {
elt.nchars++;
xp += g->advance;
} else {
xp = positions[i].x;
yp = positions[i].y;
XRenderCompositeText32(X11->display, PictOpOver, src, d->picture,
maskFormat, 0, 0, 0, 0,
&elt, 1);
elt.chars = &glyphs[i];
elt.nchars = 1;
elt.xOff = qRound(xp + offs);
elt.yOff = qRound(yp + offs);
}
}
XRenderCompositeText32(X11->display, PictOpOver, src, d->picture,
maskFormat, 0, 0, 0, 0,
&elt, 1);
return;
}
#endif
QPainterPath path = path_for_glyphs(glyphs, positions, ft);
if (path.elementCount() <= 1)
return;
Q_ASSERT((path.elementCount() % 5) == 0);
if (d->txop >= QTransform::TxScale) {
painter()->save();
painter()->setBrush(d->cpen.brush());
painter()->setPen(Qt::NoPen);
painter()->drawPath(path);
painter()->restore();
return;
}
const int rectcount = 256;
XRectangle rects[rectcount];
int num_rects = 0;
QPoint delta(qRound(d->matrix.dx()), qRound(d->matrix.dy()));
QRect clip(d->polygonClipper.boundingRect());
for (int i=0; i < path.elementCount(); i+=5) {
int x = qRound(path.elementAt(i).x);
int y = qRound(path.elementAt(i).y);
int w = qRound(path.elementAt(i+1).x) - x;
int h = qRound(path.elementAt(i+2).y) - y;
QRect rect = QRect(x + delta.x(), y + delta.y(), w, h);
rect = rect.intersected(clip);
if (rect.isEmpty())
continue;
rects[num_rects].x = short(rect.x());
rects[num_rects].y = short(rect.y());
rects[num_rects].width = ushort(rect.width());
rects[num_rects].height = ushort(rect.height());
++num_rects;
if (num_rects == rectcount) {
XFillRectangles(d->dpy, d->hd, d->gc, rects, num_rects);
num_rects = 0;
}
}
if (num_rects > 0)
XFillRectangles(d->dpy, d->hd, d->gc, rects, num_rects);
}
#endif // !QT_NO_XRENDER
QT_END_NAMESPACE