FX_BOOL CFX_QuartzDeviceDriver::GetDIBits(CFX_DIBitmap*     bitmap,
        FX_INT32            left,
        FX_INT32            top,
        void* pIccTransform,
        FX_BOOL bDEdge)
{
    if (FXDC_PRINTER == _deviceClass) {
        return FALSE;
    }
    if (bitmap->GetBPP() < 32) {
        return FALSE;
    }
    if (!(_renderCaps | FXRC_GET_BITS)) {
        return FALSE;
    }
    CGPoint pt = CGPointMake(left, top);
    pt = CGPointApplyAffineTransform(pt, _foxitDevice2User);
    CGAffineTransform ctm = CGContextGetCTM(_context);
    pt.x *= FXSYS_fabs(ctm.a);
    pt.y *= FXSYS_fabs(ctm.d);
    CGImageRef image = CGBitmapContextCreateImage(_context);
    if (NULL == image) {
        return FALSE;
    }
    CGFloat width	= (CGFloat) bitmap->GetWidth();
    CGFloat height	= (CGFloat) bitmap->GetHeight();
    if (width + pt.x > _width) {
        width -= (width + pt.x - _width);
    }
    if (height + pt.y > _height) {
        height -= (height + pt.y - _height);
    }
    CGImageRef subImage = CGImageCreateWithImageInRect(image,
                          CGRectMake(pt.x,
                                     pt.y,
                                     width,
                                     height));
    CGContextRef context = createContextWithBitmap(bitmap);
    CGRect rect = CGContextGetClipBoundingBox(context);
    CGContextClearRect(context, rect);
    CGContextDrawImage(context, rect, subImage);
    CGContextRelease(context);
    CGImageRelease(subImage);
    CGImageRelease(image);
    if (bitmap->HasAlpha()) {
        for (int row = 0; row < bitmap->GetHeight(); row ++) {
            FX_LPBYTE pScanline = (FX_LPBYTE)bitmap->GetScanline(row);
            for (int col = 0; col < bitmap->GetWidth(); col ++) {
                if (pScanline[3] > 0) {
                    pScanline[0] = (pScanline[0] * 255.f / pScanline[3] + .5f);
                    pScanline[1] = (pScanline[1] * 255.f / pScanline[3] + .5f);
                    pScanline[2] = (pScanline[2] * 255.f / pScanline[3] + .5f);
                }
                pScanline += 4;
            }
        }
    }
    return TRUE;
}
static RetainPtr<CGImageRef> createCroppedImageIfNecessary(CGImageRef image, const IntSize& bounds)
{
    if (image && (CGImageGetWidth(image) != static_cast<size_t>(bounds.width())
        || CGImageGetHeight(image) != static_cast<size_t>(bounds.height()))) {
        return adoptCF(CGImageCreateWithImageInRect(image, CGRectMake(0, 0, bounds.width(), bounds.height())));
    }
    return image;
}
Exemple #3
0
static void SetIconImage (CGImageRef image, CGRect rct, int n)
{
	if (systemVersion >= 0x1040)
		macIconImage[n] = CGImageCreateWithImageInRect(image, rct);
#ifdef MAC_PANTHER_SUPPORT
	else
		macIconRef[n] = CreateIconRefFromImage(image, rct);
#endif
}
bool QMacWindowSurface::scroll(const QRegion &area, int dx, int dy)
{
    if (d_ptr->device.size().isNull())
        return false;

    QCFType<CGImageRef> image = d_ptr->device.toMacCGImageRef();
    const QRect rect(area.boundingRect());
    const CGRect dest = CGRectMake(rect.x(), rect.y(), rect.width(), rect.height());
    QCFType<CGImageRef> subimage = CGImageCreateWithImageInRect(image, dest);
    QCFType<CGContextRef> context = qt_mac_cg_context(&d_ptr->device);
    CGContextTranslateCTM(context, dx, dy);
    qt_mac_drawCGImage(context, &dest, subimage);
    return true;
}
Exemple #5
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void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
                        const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
{
    if (!nativeImageForCurrentFrame())
        return;

    ASSERT(patternTransform.isInvertible());
    if (!patternTransform.isInvertible())
        // Avoid a hang under CGContextDrawTiledImage on release builds.
        return;

    CGContextRef context = ctxt->platformContext();
    ctxt->save();
    CGContextClipToRect(context, destRect);
    ctxt->setCompositeOperation(op);
    CGContextTranslateCTM(context, destRect.x(), destRect.y() + destRect.height());
    CGContextScaleCTM(context, 1, -1);
    
    // Compute the scaled tile size.
    float scaledTileHeight = tileRect.height() * narrowPrecisionToFloat(patternTransform.d());
    
    // We have to adjust the phase to deal with the fact we're in Cartesian space now (with the bottom left corner of destRect being
    // the origin).
    float adjustedX = phase.x() - destRect.x() + tileRect.x() * narrowPrecisionToFloat(patternTransform.a()); // We translated the context so that destRect.x() is the origin, so subtract it out.
    float adjustedY = destRect.height() - (phase.y() - destRect.y() + tileRect.y() * narrowPrecisionToFloat(patternTransform.d()) + scaledTileHeight);

    CGImageRef tileImage = nativeImageForCurrentFrame();
    float h = CGImageGetHeight(tileImage);

    RetainPtr<CGImageRef> subImage;
    if (tileRect.size() == size())
        subImage = tileImage;
    else {
        // Copying a sub-image out of a partially-decoded image stops the decoding of the original image. It should never happen
        // because sub-images are only used for border-image, which only renders when the image is fully decoded.
        ASSERT(h == height());
        subImage.adoptCF(CGImageCreateWithImageInRect(tileImage, tileRect));
    }

    // Adjust the color space.
    subImage = imageWithColorSpace(subImage.get(), styleColorSpace);
    
#ifndef BUILDING_ON_TIGER
    // Leopard has an optimized call for the tiling of image patterns, but we can only use it if the image has been decoded enough that
    // its buffer is the same size as the overall image.  Because a partially decoded CGImageRef with a smaller width or height than the
    // overall image buffer needs to tile with "gaps", we can't use the optimized tiling call in that case.
    // FIXME: Could create WebKitSystemInterface SPI for CGCreatePatternWithImage2 and probably make Tiger tile faster as well.
    // FIXME: We cannot use CGContextDrawTiledImage with scaled tiles on Leopard, because it suffers from rounding errors.  Snow Leopard is ok.
    float scaledTileWidth = tileRect.width() * narrowPrecisionToFloat(patternTransform.a());
    float w = CGImageGetWidth(tileImage);
#ifdef BUILDING_ON_LEOPARD
    if (w == size().width() && h == size().height() && scaledTileWidth == tileRect.width() && scaledTileHeight == tileRect.height())
#else
    if (w == size().width() && h == size().height())
#endif
        CGContextDrawTiledImage(context, FloatRect(adjustedX, adjustedY, scaledTileWidth, scaledTileHeight), subImage.get());
    else {
#endif

    // On Leopard, this code now only runs for partially decoded images whose buffers do not yet match the overall size of the image.
    // On Tiger this code runs all the time.  This code is suboptimal because the pattern does not reference the image directly, and the
    // pattern is destroyed before exiting the function.  This means any decoding the pattern does doesn't end up cached anywhere, so we
    // redecode every time we paint.
    static const CGPatternCallbacks patternCallbacks = { 0, drawPatternCallback, NULL };
    CGAffineTransform matrix = CGAffineTransformMake(narrowPrecisionToCGFloat(patternTransform.a()), 0, 0, narrowPrecisionToCGFloat(patternTransform.d()), adjustedX, adjustedY);
    matrix = CGAffineTransformConcat(matrix, CGContextGetCTM(context));
    // The top of a partially-decoded image is drawn at the bottom of the tile. Map it to the top.
    matrix = CGAffineTransformTranslate(matrix, 0, size().height() - h);
    RetainPtr<CGPatternRef> pattern(AdoptCF, CGPatternCreate(subImage.get(), CGRectMake(0, 0, tileRect.width(), tileRect.height()),
                                             matrix, tileRect.width(), tileRect.height(), 
                                             kCGPatternTilingConstantSpacing, true, &patternCallbacks));
    if (!pattern) {
        ctxt->restore();
        return;
    }

    RetainPtr<CGColorSpaceRef> patternSpace(AdoptCF, CGColorSpaceCreatePattern(0));
    
    CGFloat alpha = 1;
    RetainPtr<CGColorRef> color(AdoptCF, CGColorCreateWithPattern(patternSpace.get(), pattern.get(), &alpha));
    CGContextSetFillColorSpace(context, patternSpace.get());

    // FIXME: Really want a public API for this.  It is just CGContextSetBaseCTM(context, CGAffineTransformIdentiy).
    wkSetPatternBaseCTM(context, CGAffineTransformIdentity);
    CGContextSetPatternPhase(context, CGSizeZero);

    CGContextSetFillColorWithColor(context, color.get());
    CGContextFillRect(context, CGContextGetClipBoundingBox(context));

#ifndef BUILDING_ON_TIGER
    }
#endif

    ctxt->restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}
Exemple #6
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void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& destRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator compositeOp)
{
    startAnimation();

    RetainPtr<CGImageRef> image = frameAtIndex(m_currentFrame);
    if (!image) // If it's too early we won't have an image yet.
        return;
    
    if (mayFillWithSolidColor()) {
        fillWithSolidColor(ctxt, destRect, solidColor(), styleColorSpace, compositeOp);
        return;
    }

    float currHeight = CGImageGetHeight(image.get());
    if (currHeight <= srcRect.y())
        return;

    CGContextRef context = ctxt->platformContext();
    ctxt->save();

    bool shouldUseSubimage = false;

    // If the source rect is a subportion of the image, then we compute an inflated destination rect that will hold the entire image
    // and then set a clip to the portion that we want to display.
    FloatRect adjustedDestRect = destRect;
    FloatSize selfSize = currentFrameSize();
    if (srcRect.size() != selfSize) {
        CGInterpolationQuality interpolationQuality = CGContextGetInterpolationQuality(context);
        // When the image is scaled using high-quality interpolation, we create a temporary CGImage
        // containing only the portion we want to display. We need to do this because high-quality
        // interpolation smoothes sharp edges, causing pixels from outside the source rect to bleed
        // into the destination rect. See <rdar://problem/6112909>.
        shouldUseSubimage = (interpolationQuality == kCGInterpolationHigh || interpolationQuality == kCGInterpolationDefault) && (srcRect.size() != destRect.size() || !ctxt->getCTM().isIdentityOrTranslationOrFlipped());
        float xScale = srcRect.width() / destRect.width();
        float yScale = srcRect.height() / destRect.height();
        if (shouldUseSubimage) {
            FloatRect subimageRect = srcRect;
            float leftPadding = srcRect.x() - floorf(srcRect.x());
            float topPadding = srcRect.y() - floorf(srcRect.y());

            subimageRect.move(-leftPadding, -topPadding);
            adjustedDestRect.move(-leftPadding / xScale, -topPadding / yScale);

            subimageRect.setWidth(ceilf(subimageRect.width() + leftPadding));
            adjustedDestRect.setWidth(subimageRect.width() / xScale);

            subimageRect.setHeight(ceilf(subimageRect.height() + topPadding));
            adjustedDestRect.setHeight(subimageRect.height() / yScale);

            image.adoptCF(CGImageCreateWithImageInRect(image.get(), subimageRect));
            if (currHeight < srcRect.bottom()) {
                ASSERT(CGImageGetHeight(image.get()) == currHeight - CGRectIntegral(srcRect).origin.y);
                adjustedDestRect.setHeight(CGImageGetHeight(image.get()) / yScale);
            }
        } else {
            adjustedDestRect.setLocation(FloatPoint(destRect.x() - srcRect.x() / xScale, destRect.y() - srcRect.y() / yScale));
            adjustedDestRect.setSize(FloatSize(selfSize.width() / xScale, selfSize.height() / yScale));
        }

        CGContextClipToRect(context, destRect);
    }

    // If the image is only partially loaded, then shrink the destination rect that we're drawing into accordingly.
    if (!shouldUseSubimage && currHeight < selfSize.height())
        adjustedDestRect.setHeight(adjustedDestRect.height() * currHeight / selfSize.height());

    ctxt->setCompositeOperation(compositeOp);

    // Flip the coords.
    CGContextScaleCTM(context, 1, -1);
    adjustedDestRect.setY(-adjustedDestRect.bottom());

    // Adjust the color space.
    image = imageWithColorSpace(image.get(), styleColorSpace);

    // Draw the image.
    CGContextDrawImage(context, adjustedDestRect, image.get());

    ctxt->restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}
void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
{
    Q_D(QRasterWindowSurface);

    // Not ready for painting yet, bail out. This can happen in
    // QWidget::create_sys()
    if (!d->image || rgn.rectCount() == 0)
        return;

#ifdef Q_WS_WIN
    QRect br = rgn.boundingRect();

    if (!qt_widget_private(window())->isOpaque
        && window()->testAttribute(Qt::WA_TranslucentBackground)
        && (qt_widget_private(window())->data.window_flags & Qt::FramelessWindowHint))
    {
        QRect r = window()->frameGeometry();
        QPoint frameOffset = qt_widget_private(window())->frameStrut().topLeft();
        QRect dirtyRect = br.translated(offset + frameOffset);

        SIZE size = {r.width(), r.height()};
        POINT ptDst = {r.x(), r.y()};
        POINT ptSrc = {0, 0};
        BLENDFUNCTION blend = {AC_SRC_OVER, 0, (BYTE)(255.0 * window()->windowOpacity()), Q_AC_SRC_ALPHA};
        RECT dirty = {dirtyRect.x(), dirtyRect.y(),
            dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
        Q_UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, d->image->hdc, &ptSrc, 0, &blend, Q_ULW_ALPHA, &dirty};
        ptrUpdateLayeredWindowIndirect(window()->internalWinId(), &info);
    } else

    {
        QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

        HDC widget_dc = widget->getDC();

        QRect wbr = br.translated(-wOffset);
        BitBlt(widget_dc, wbr.x(), wbr.y(), wbr.width(), wbr.height(),
               d->image->hdc, br.x() + offset.x(), br.y() + offset.y(), SRCCOPY);
        widget->releaseDC(widget_dc);
    }

#ifndef QT_NO_DEBUG
    static bool flush = !qgetenv("QT_FLUSH_WINDOWSURFACE").isEmpty();
    if (flush) {
        SelectObject(qt_win_display_dc(), GetStockObject(BLACK_BRUSH));
        Rectangle(qt_win_display_dc(), 0, 0, d->image->width() + 2, d->image->height() + 2);
        BitBlt(qt_win_display_dc(), 1, 1, d->image->width(), d->image->height(),
               d->image->hdc, 0, 0, SRCCOPY);
    }
#endif

#endif

#ifdef Q_WS_X11
    extern void *qt_getClipRects(const QRegion &r, int &num); // in qpaintengine_x11.cpp
    extern QWidgetData* qt_widget_data(QWidget *);
    QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

    if (widget->window() != window()) {
        XFreeGC(X11->display, d_ptr->gc);
        d_ptr->gc = XCreateGC(X11->display, widget->handle(), 0, 0);
    }

    QRegion wrgn(rgn);
    if (!wOffset.isNull())
        wrgn.translate(-wOffset);

    if (wrgn.rectCount() != 1) {
        int num;
        XRectangle *rects = (XRectangle *)qt_getClipRects(wrgn, num);
        XSetClipRectangles(X11->display, d_ptr->gc, 0, 0, rects, num, YXBanded);
    }

    QPoint widgetOffset = offset + wOffset;
    QRect clipRect = widget->rect().translated(widgetOffset).intersected(d_ptr->image->image.rect());

    QRect br = rgn.boundingRect().translated(offset).intersected(clipRect);
    QPoint wpos = br.topLeft() - widgetOffset;

#ifndef QT_NO_MITSHM
    if (d_ptr->image->xshmpm) {
        XCopyArea(X11->display, d_ptr->image->xshmpm, widget->handle(), d_ptr->gc,
                  br.x(), br.y(), br.width(), br.height(), wpos.x(), wpos.y());
        d_ptr->needsSync = true;
    } else if (d_ptr->image->xshmimg) {
        XShmPutImage(X11->display, widget->handle(), d_ptr->gc, d_ptr->image->xshmimg,
                     br.x(), br.y(), wpos.x(), wpos.y(), br.width(), br.height(), False);
        d_ptr->needsSync = true;
    } else
#endif
    {
        int depth = widget->x11Info().depth();
        const QImage &src = d->image->image;
        if (src.format() != QImage::Format_RGB32 || depth < 24 || X11->bppForDepth.value(depth) != 32) {
            Q_ASSERT(src.depth() >= 16);
            const QImage sub_src(src.scanLine(br.y()) + br.x() * (uint(src.depth()) / 8),
                                 br.width(), br.height(), src.bytesPerLine(), src.format());
            QX11PixmapData *data = new QX11PixmapData(QPixmapData::PixmapType);
            data->xinfo = widget->x11Info();
            data->fromImage(sub_src, Qt::NoOpaqueDetection);
            QPixmap pm = QPixmap(data);
            XCopyArea(X11->display, pm.handle(), widget->handle(), d_ptr->gc, 0 , 0 , br.width(), br.height(), wpos.x(), wpos.y());
        } else {
            // qpaintengine_x11.cpp
            extern void qt_x11_drawImage(const QRect &rect, const QPoint &pos, const QImage &image, Drawable hd, GC gc, Display *dpy, Visual *visual, int depth);
            qt_x11_drawImage(br, wpos, src, widget->handle(), d_ptr->gc, X11->display, (Visual *)widget->x11Info().visual(), depth);
        }
    }

    if (wrgn.rectCount() != 1)
        XSetClipMask(X11->display, d_ptr->gc, XNone);
#endif // FALCON

#ifdef Q_WS_MAC

    Q_UNUSED(offset);

    // This is mainly done for native components like native "open file" dialog.
    if (widget->testAttribute(Qt::WA_DontShowOnScreen)) {
        return;
    }

#ifdef QT_MAC_USE_COCOA

    this->needsFlush = true;
    this->regionToFlush += rgn;

    // The actual flushing will be processed in [view drawRect:rect]
    qt_mac_setNeedsDisplay(widget);

#else
    // Get a context for the widget.
    CGContextRef context;
    CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
    QDBeginCGContext(port, &context);
    CGContextRetain(context);
    CGContextSaveGState(context);

    // Flip context.
    CGContextTranslateCTM(context, 0, widget->height());
    CGContextScaleCTM(context, 1, -1);

    // Clip to region.
    const QVector<QRect> &rects = rgn.rects();
    for (int i = 0; i < rects.size(); ++i) {
        const QRect &rect = rects.at(i);
        CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
    }
    CGContextClip(context);

    QRect r = rgn.boundingRect().intersected(d->image->image.rect());
    const CGRect area = CGRectMake(r.x(), r.y(), r.width(), r.height());
    CGImageRef image = CGBitmapContextCreateImage(d->image->cg);
    CGImageRef subImage = CGImageCreateWithImageInRect(image, area);

    qt_mac_drawCGImage(context, &area, subImage);

    CGImageRelease(subImage);
    CGImageRelease(image);

    QDEndCGContext(port, &context);

    // Restore context.
    CGContextRestoreGState(context);
    CGContextRelease(context);
#endif // QT_MAC_USE_COCOA

#endif // Q_WS_MAC

}
Exemple #8
0
void UIFrameBufferQuartz2D::paintEvent(QPaintEvent *aEvent)
{
    /* If the machine is NOT in 'running' state,
     * the link between framebuffer and video memory
     * is broken, we should go fallback now... */
    if (m_fUsesGuestVRAM &&
        !m_pMachineView->uisession()->isRunning() &&
        !m_pMachineView->uisession()->isPaused() &&
        /* Online snapshotting: */
        m_pMachineView->uisession()->machineState() != KMachineState_Saving)
    {
        /* Simulate fallback through fake resize-event: */
        UIResizeEvent event(FramebufferPixelFormat_Opaque, NULL, 0, 0, 640, 480);
        resizeEvent(&event);
    }

    /* For debugging /Developer/Applications/Performance Tools/Quartz
     * Debug.app is a nice tool to see which parts of the screen are
     * updated.*/
    Assert(m_image);

    QWidget* viewport = m_pMachineView->viewport();
    Assert(VALID_PTR(viewport));
    /* Get the dimensions of the viewport */
    CGRect viewRect = ::darwinToCGRect(viewport->geometry());
    /* Get the context of this window from Qt */
    CGContextRef ctx = ::darwinToCGContextRef(viewport);
    Assert(VALID_PTR(ctx));

    /* Flip the context */
    CGContextTranslateCTM(ctx, 0, viewRect.size.height);
    CGContextScaleCTM(ctx, 1.0, -1.0);

    /* We handle the seamless mode as a special case. */
    if (m_pMachineLogic->visualStateType() == UIVisualStateType_Seamless)
    {
        /* Clear the background (make the rect fully transparent): */
        CGContextClearRect(ctx, viewRect);

#ifdef OVERLAY_CLIPRECTS
        /* Enable overlay above the seamless mask: */
        CGContextSetRGBFillColor(ctx, 0.0, 0.0, 5.0, 0.7);
        CGContextFillRect(ctx, viewRect);
#endif /* OVERLAY_CLIPRECTS */
#ifdef COMP_WITH_SHADOW
        /* Enable shadows: */
        CGContextSetShadow(ctx, CGSizeMake (10, -10), 10);
        CGContextBeginTransparencyLayer(ctx, NULL);
#endif /* COMP_WITH_SHADOW */

        /* Determine current visible region: */
        RegionRects *pRgnRcts = ASMAtomicXchgPtrT(&mRegion, NULL, RegionRects*);
        if (pRgnRcts)
        {
            /* If visible region is determined: */
            if (pRgnRcts->used > 0)
            {
                /* Add the clipping rects all at once (they are defined in SetVisibleRegion): */
                CGContextBeginPath(ctx);
                CGContextAddRects(ctx, pRgnRcts->rcts, pRgnRcts->used);
                /* Now convert the path to a clipping path: */
                CGContextClip(ctx);
            }

            /* Put back the visible region, free if we cannot (2+ SetVisibleRegion calls): */
            if (   !ASMAtomicCmpXchgPtr(&mRegion, pRgnRcts, NULL)
                && !ASMAtomicCmpXchgPtr(&mRegionUnused, pRgnRcts, NULL))
            {
                RTMemFree(pRgnRcts);
                pRgnRcts = NULL;
            }
        }

        /* If visible region is still determined: */
        if (pRgnRcts && pRgnRcts->used > 0)
        {
            /* Create a subimage of the current view.
             * Currently this subimage is the whole screen. */
            CGImageRef subImage;
            if (!m_pMachineView->pauseShot().isNull())
            {
                CGImageRef pauseImg = ::darwinToCGImageRef(&m_pMachineView->pauseShot());
                subImage = CGImageCreateWithImageInRect(pauseImg, CGRectMake(m_pMachineView->contentsX(), m_pMachineView->contentsY(), m_pMachineView->visibleWidth(), m_pMachineView->visibleHeight()));
                CGImageRelease(pauseImg);
            }
            else
            {
#ifdef RT_ARCH_AMD64
                /* Not sure who to blame, but it seems on 64bit there goes
                 * something terrible wrong (on a second monitor) when directly
                 * using CGImageCreateWithImageInRect without making a copy. We saw
                 * something like this already with the scale mode. */
                CGImageRef tmpImage = CGImageCreateWithImageInRect(m_image, CGRectMake(m_pMachineView->contentsX(), m_pMachineView->contentsY(), m_pMachineView->visibleWidth(), m_pMachineView->visibleHeight()));
                subImage = CGImageCreateCopy(tmpImage);
                CGImageRelease(tmpImage);
#else /* RT_ARCH_AMD64 */
                subImage = CGImageCreateWithImageInRect(m_image, CGRectMake(m_pMachineView->contentsX(), m_pMachineView->contentsY(), m_pMachineView->visibleWidth(), m_pMachineView->visibleHeight()));
#endif /* !RT_ARCH_AMD64 */
            }
            Assert(VALID_PTR(subImage));

            /* In any case clip the drawing to the view window: */
            CGContextClipToRect(ctx, viewRect);
            /* At this point draw the real vm image: */
            CGContextDrawImage(ctx, ::darwinFlipCGRect(viewRect, viewRect.size.height), subImage);

            /* Release the subimage: */
            CGImageRelease(subImage);
        }

#ifdef COMP_WITH_SHADOW
        CGContextEndTransparencyLayer(ctx);
#endif /* COMP_WITH_SHADOW */
#ifdef OVERLAY_CLIPRECTS
        if (pRgnRcts && pRgnRcts->used > 0)
        {
            CGContextBeginPath(ctx);
            CGContextAddRects(ctx, pRgnRcts->rcts, pRgnRcts->used);
            CGContextSetRGBStrokeColor(ctx, 1.0, 0.0, 0.0, 0.7);
            CGContextDrawPath(ctx, kCGPathStroke);
        }
        CGContextSetRGBStrokeColor(ctx, 0.0, 1.0, 0.0, 0.7);
        CGContextStrokeRect(ctx, viewRect);
#endif /* OVERLAY_CLIPRECTS */
    }
void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
{
    Q_D(QRasterWindowSurface);

    // Not ready for painting yet, bail out. This can happen in
    // QWidget::create_sys()
    if (!d->image)
        return;

#ifdef Q_WS_WIN
    QRect br = rgn.boundingRect();

#ifndef Q_OS_WINCE
    if (!qt_widget_private(window())->isOpaque && d->canUseLayeredWindow) {
        QRect r = window()->frameGeometry();
        QPoint frameOffset = qt_widget_private(window())->frameStrut().topLeft();
        QRect dirtyRect = br.translated(offset + frameOffset);

        SIZE size = {r.width(), r.height()};
        POINT ptDst = {r.x(), r.y()};
        POINT ptSrc = {0, 0};
        Q_BLENDFUNCTION blend = {AC_SRC_OVER, 0, (int)(255.0 * window()->windowOpacity()), Q_AC_SRC_ALPHA};
        RECT dirty = {dirtyRect.x(), dirtyRect.y(),
            dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
        Q_UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, d->image->hdc, &ptSrc, 0, &blend, Q_ULW_ALPHA, &dirty};

        (*ptrUpdateLayeredWindowIndirect)(window()->internalWinId(), &info);
    } else
#endif
    {
        QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

        HDC widget_dc = widget->getDC();

        QRect wbr = br.translated(-wOffset);
        BitBlt(widget_dc, wbr.x(), wbr.y(), wbr.width(), wbr.height(),
               d->image->hdc, br.x() + offset.x(), br.y() + offset.y(), SRCCOPY);
        widget->releaseDC(widget_dc);
    }

#ifndef QT_NO_DEBUG
    static bool flush = !qgetenv("QT_FLUSH_WINDOWSURFACE").isEmpty();
    if (flush) {
        SelectObject(qt_win_display_dc(), GetStockObject(BLACK_BRUSH));
        Rectangle(qt_win_display_dc(), 0, 0, d->image->width() + 2, d->image->height() + 2);
        BitBlt(qt_win_display_dc(), 1, 1, d->image->width(), d->image->height(),
               d->image->hdc, 0, 0, SRCCOPY);
    }
#endif

#endif

#ifdef Q_WS_X11
    extern void *qt_getClipRects(const QRegion &r, int &num); // in qpaintengine_x11.cpp
    extern QWidgetData* qt_widget_data(QWidget *);
    QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

    if (widget->window() != window()) {
        XFreeGC(X11->display, d_ptr->gc);
        d_ptr->gc = XCreateGC(X11->display, widget->handle(), 0, 0);
    }

    QRegion wrgn(rgn);
    if (!wOffset.isNull())
        wrgn.translate(-wOffset);
    QRect wbr = wrgn.boundingRect();

    int num;
    XRectangle *rects = (XRectangle *)qt_getClipRects(wrgn, num);
    XSetClipRectangles(X11->display, d_ptr->gc, 0, 0, rects, num, YXBanded);

    QRect br = rgn.boundingRect().translated(offset);
#ifndef QT_NO_MITSHM
    if (d_ptr->image->xshmpm) {
        XCopyArea(X11->display, d_ptr->image->xshmpm, widget->handle(), d_ptr->gc,
                  br.x(), br.y(), br.width(), br.height(), wbr.x(), wbr.y());
        XSync(X11->display, False);
    } else
#endif
    {
        const QImage &src = d->image->image;
        br = br.intersected(src.rect());
        if (src.format() != QImage::Format_RGB32) {
            QX11PixmapData *data = new QX11PixmapData(QPixmapData::PixmapType);
            data->xinfo = widget->x11Info();
            data->fromImage(src, Qt::AutoColor);
            QPixmap pm = QPixmap(data);
            XCopyArea(X11->display, pm.handle(), widget->handle(), d_ptr->gc, br.x() , br.y() , br.width(), br.height(), wbr.x(), wbr.y());
        } else {
            // qpaintengine_x11.cpp
            extern void qt_x11_drawImage(const QRect &rect, const QPoint &pos, const QImage &image, Drawable hd, GC gc, Display *dpy, Visual *visual, int depth);
            qt_x11_drawImage(br, wbr.topLeft(), src, widget->handle(), d_ptr->gc, X11->display, (Visual *)widget->x11Info().visual(), widget->x11Info().depth());
        }
    }
#endif // FALCON

#ifdef Q_WS_MAC

//     qDebug() << "Flushing" << widget << rgn << offset;

//     d->image->image.save("flush.png");

    // Get a context for the widget.
#ifndef QT_MAC_USE_COCOA
    CGContextRef context;
    CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
    QDBeginCGContext(port, &context);
#else
    extern CGContextRef qt_mac_graphicsContextFor(QWidget *);
    CGContextRef context = qt_mac_graphicsContextFor(widget);
#endif
    CGContextSaveGState(context);

    // Flip context.
    CGContextTranslateCTM(context, 0, widget->height());
    CGContextScaleCTM(context, 1, -1);

    // Clip to region.
    const QVector<QRect> &rects = rgn.rects();
    for (int i = 0; i < rects.size(); ++i) {
        const QRect &rect = rects.at(i);
        CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
    }
    CGContextClip(context);

    QRect r = rgn.boundingRect();
    const CGRect area = CGRectMake(r.x(), r.y(), r.width(), r.height());
    CGImageRef image = CGBitmapContextCreateImage(d->image->cg);
    CGImageRef subImage = CGImageCreateWithImageInRect(image, area);

    qt_mac_drawCGImage(context, &area, subImage);
    CGImageRelease(subImage);
    CGImageRelease(image);

//     CGSize size = { d->image->image.width(), d->image->image.height() };
//     CGLayerRef layer = CGLayerCreateWithContext(d->image->cg, size, 0);
//     CGPoint pt = { 0, 0 };
//     CGContextDrawLayerAtPoint(context, pt, layer);
//     CGLayerRelease(layer);

    // Restore context.
    CGContextRestoreGState(context);
#ifndef QT_MAC_USE_COCOA
    QDEndCGContext(port, &context);
#else
    CGContextFlush(context);
#endif
#endif
}
Exemple #10
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CGImageRef CGImageCreateWithImageInRect_wrap(CGImageRef im, float x, float y, float w, float h) {
  return CGImageCreateWithImageInRect( im, CGRectMake(x, y, w, h));
}
 static void translate(SubimageCacheWithTimer::SubimageCacheEntry& entry, const SubimageRequest& request, unsigned /*hashCode*/)
 {
     entry.image = request.image;
     entry.rect = request.rect;
     entry.subimage = adoptCF(CGImageCreateWithImageInRect(request.image, request.rect));
 }
Exemple #12
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void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
    const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect, BlendMode blendMode)
{
    if (!nativeImageForCurrentFrame())
        return;

    if (!patternTransform.isInvertible())
        return;

    CGContextRef context = ctxt->platformContext();
    GraphicsContextStateSaver stateSaver(*ctxt);
    CGContextClipToRect(context, destRect);
    ctxt->setCompositeOperation(op, blendMode);
    CGContextTranslateCTM(context, destRect.x(), destRect.y() + destRect.height());
    CGContextScaleCTM(context, 1, -1);
    
    // Compute the scaled tile size.
    float scaledTileHeight = tileRect.height() * narrowPrecisionToFloat(patternTransform.d());
    
    // We have to adjust the phase to deal with the fact we're in Cartesian space now (with the bottom left corner of destRect being
    // the origin).
    float adjustedX = phase.x() - destRect.x() + tileRect.x() * narrowPrecisionToFloat(patternTransform.a()); // We translated the context so that destRect.x() is the origin, so subtract it out.
    float adjustedY = destRect.height() - (phase.y() - destRect.y() + tileRect.y() * narrowPrecisionToFloat(patternTransform.d()) + scaledTileHeight);

    CGImageRef tileImage = nativeImageForCurrentFrame();
    float h = CGImageGetHeight(tileImage);

    RetainPtr<CGImageRef> subImage;
    if (tileRect.size() == size())
        subImage = tileImage;
    else {
        // Copying a sub-image out of a partially-decoded image stops the decoding of the original image. It should never happen
        // because sub-images are only used for border-image, which only renders when the image is fully decoded.
        ASSERT(h == height());
        subImage = adoptCF(CGImageCreateWithImageInRect(tileImage, tileRect));
    }

    // Adjust the color space.
    subImage = Image::imageWithColorSpace(subImage.get(), styleColorSpace);

    // Leopard has an optimized call for the tiling of image patterns, but we can only use it if the image has been decoded enough that
    // its buffer is the same size as the overall image.  Because a partially decoded CGImageRef with a smaller width or height than the
    // overall image buffer needs to tile with "gaps", we can't use the optimized tiling call in that case.
    // FIXME: We cannot use CGContextDrawTiledImage with scaled tiles on Leopard, because it suffers from rounding errors.  Snow Leopard is ok.
    float scaledTileWidth = tileRect.width() * narrowPrecisionToFloat(patternTransform.a());
    float w = CGImageGetWidth(tileImage);
    if (w == size().width() && h == size().height() && !spaceSize().width() && !spaceSize().height())
        CGContextDrawTiledImage(context, FloatRect(adjustedX, adjustedY, scaledTileWidth, scaledTileHeight), subImage.get());
    else {
        // On Leopard and newer, this code now only runs for partially decoded images whose buffers do not yet match the overall size of the image.
        static const CGPatternCallbacks patternCallbacks = { 0, drawPatternCallback, patternReleaseCallback };
        CGAffineTransform matrix = CGAffineTransformMake(narrowPrecisionToCGFloat(patternTransform.a()), 0, 0, narrowPrecisionToCGFloat(patternTransform.d()), adjustedX, adjustedY);
        matrix = CGAffineTransformConcat(matrix, CGContextGetCTM(context));
        // The top of a partially-decoded image is drawn at the bottom of the tile. Map it to the top.
        matrix = CGAffineTransformTranslate(matrix, 0, size().height() - h);
#if PLATFORM(IOS)
        matrix = CGAffineTransformScale(matrix, 1, -1);
        matrix = CGAffineTransformTranslate(matrix, 0, -h);
#endif
        CGImageRef platformImage = CGImageRetain(subImage.get());
        RetainPtr<CGPatternRef> pattern = adoptCF(CGPatternCreate(platformImage, CGRectMake(0, 0, tileRect.width(), tileRect.height()), matrix,
            tileRect.width() + spaceSize().width() * (1 / narrowPrecisionToFloat(patternTransform.a())),
            tileRect.height() + spaceSize().height() * (1 / narrowPrecisionToFloat(patternTransform.d())),
            kCGPatternTilingConstantSpacing, true, &patternCallbacks));
        
        if (!pattern)
            return;

        RetainPtr<CGColorSpaceRef> patternSpace = adoptCF(CGColorSpaceCreatePattern(0));

        CGFloat alpha = 1;
        RetainPtr<CGColorRef> color = adoptCF(CGColorCreateWithPattern(patternSpace.get(), pattern.get(), &alpha));
        CGContextSetFillColorSpace(context, patternSpace.get());

        // FIXME: Really want a public API for this. It is just CGContextSetBaseCTM(context, CGAffineTransformIdentiy).
        wkSetBaseCTM(context, CGAffineTransformIdentity);
        CGContextSetPatternPhase(context, CGSizeZero);

        CGContextSetFillColorWithColor(context, color.get());
        CGContextFillRect(context, CGContextGetClipBoundingBox(context));
    }

    stateSaver.restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}