void xf_draw_screen_scaled(xfInfo* xfi)
{
XTransform transform;
Picture windowPicture;
Picture primaryPicture;
XRenderPictureAttributes pa;
XRenderPictFormat* picFormat;
picFormat = XRenderFindStandardFormat(xfi->display, PictStandardRGB24);
pa.subwindow_mode = IncludeInferiors;
primaryPicture = XRenderCreatePicture(xfi->display, xfi->primary, picFormat, CPSubwindowMode, &pa);
windowPicture = XRenderCreatePicture(xfi->display, xfi->window->handle, picFormat, CPSubwindowMode, &pa);
transform.matrix[0][0] = XDoubleToFixed(1);
transform.matrix[0][1] = XDoubleToFixed(0);
transform.matrix[0][2] = XDoubleToFixed(0);
transform.matrix[1][0] = XDoubleToFixed(0);
transform.matrix[1][1] = XDoubleToFixed(1);
transform.matrix[1][2] = XDoubleToFixed(0);
transform.matrix[2][0] = XDoubleToFixed(0);
transform.matrix[2][1] = XDoubleToFixed(0);
transform.matrix[2][2] = XDoubleToFixed(xfi->scale);
XRenderSetPictureTransform(xfi->display, primaryPicture, &transform);
XRenderComposite(xfi->display, PictOpSrc, primaryPicture, 0, windowPicture, 0, 0, 0, 0, 0, 0, xfi->currentWidth, xfi->currentHeight);
}
void xf_draw_screen_scaled(xfContext* xfc, int x, int y, int w, int h, BOOL scale)
{
#ifdef WITH_XRENDER
XTransform transform;
Picture windowPicture;
Picture primaryPicture;
XRenderPictureAttributes pa;
XRenderPictFormat* picFormat;
XRectangle xr;
picFormat = XRenderFindStandardFormat(xfc->display, PictStandardRGB24);
pa.subwindow_mode = IncludeInferiors;
primaryPicture = XRenderCreatePicture(xfc->display, xfc->primary, picFormat, CPSubwindowMode, &pa);
windowPicture = XRenderCreatePicture(xfc->display, xfc->window->handle, picFormat, CPSubwindowMode, &pa);
transform.matrix[0][0] = XDoubleToFixed(1);
transform.matrix[0][1] = XDoubleToFixed(0);
transform.matrix[0][2] = XDoubleToFixed(0);
transform.matrix[1][0] = XDoubleToFixed(0);
transform.matrix[1][1] = XDoubleToFixed(1);
transform.matrix[1][2] = XDoubleToFixed(0);
transform.matrix[2][0] = XDoubleToFixed(0);
transform.matrix[2][1] = XDoubleToFixed(0);
transform.matrix[2][2] = XDoubleToFixed(xfc->settings->ScalingFactor);
if( (w != 0) && (h != 0) )
{
if(scale == TRUE)
{
xr.x = x * xfc->settings->ScalingFactor;
xr.y = y * xfc->settings->ScalingFactor;
xr.width = (w+1) * xfc->settings->ScalingFactor;
xr.height = (h+1) * xfc->settings->ScalingFactor;
}
else
{
xr.x = x;
xr.y = y;
xr.width = w;
xr.height = h;
}
XRenderSetPictureClipRectangles(xfc->display, primaryPicture, 0, 0, &xr, 1);
}
XRenderSetPictureTransform(xfc->display, primaryPicture, &transform);
XRenderComposite(xfc->display, PictOpSrc, primaryPicture, 0, windowPicture, 0, 0, 0, 0, xfc->offset_x, xfc->offset_y, xfc->currentWidth, xfc->currentHeight);
XRenderFreePicture(xfc->display, primaryPicture);
XRenderFreePicture(xfc->display, windowPicture);
#endif
}
inline QEdge(const QPointF &pt1,
const QPointF &pt2)
{
p1.x = XDoubleToFixed(pt1.x());
p1.y = XDoubleToFixed(pt1.y());
p2.x = XDoubleToFixed(pt2.x());
p2.y = XDoubleToFixed(pt2.y());
m = (pt1.x() - pt2.x()) ? (pt1.y() - pt2.y()) / (pt1.x() - pt2.x()) : 0;
im = m ? 1/m : 0;
b = pt1.y() - m * pt1.x();
vertical = p1.x == p2.x;
horizontal = p1.y == p2.y;
}
inline qreal xAt(const qreal &y) const
{
Q_ASSERT(p1.y != p2.y);
XFixed yf = XDoubleToFixed(y);
if (yf == p1.y)
return XFixedToDouble(p1.x);
else if (yf == p2.y)
return XFixedToDouble(p2.x);
return (!vertical) ? (((y - b)*im)) : pf1.x();
}
static XFixed
XRenderComputeIntersect (XLineFixed *l1, XLineFixed *l2)
{
/*
* x = m1y + b1
* x = m2y + b2
* m1y + b1 = m2y + b2
* y * (m1 - m2) = b2 - b1
* y = (b2 - b1) / (m1 - m2)
*/
double m1 = XRenderComputeInverseSlope (l1);
double b1 = XRenderComputeXIntercept (l1, m1);
double m2 = XRenderComputeInverseSlope (l2);
double b2 = XRenderComputeXIntercept (l2, m2);
return XDoubleToFixed ((b2 - b1) / (m1 - m2));
}
static void xf_draw_screen_scaled(xfContext* xfc, int x, int y, int w, int h)
{
XTransform transform;
Picture windowPicture;
Picture primaryPicture;
XRenderPictureAttributes pa;
XRenderPictFormat* picFormat;
double xScalingFactor;
double yScalingFactor;
int x2;
int y2;
if (xfc->scaledWidth <= 0 || xfc->scaledHeight <= 0)
{
WLog_ERR(TAG, "the current window dimensions are invalid");
return;
}
if (xfc->sessionWidth <= 0 || xfc->sessionHeight <= 0)
{
WLog_ERR(TAG, "the window dimensions are invalid");
return;
}
xScalingFactor = xfc->sessionWidth / (double)xfc->scaledWidth;
yScalingFactor = xfc->sessionHeight / (double)xfc->scaledHeight;
XSetFillStyle(xfc->display, xfc->gc, FillSolid);
XSetForeground(xfc->display, xfc->gc, 0);
/* Black out possible space between desktop and window borders */
{
XRectangle box1 = { 0, 0, xfc->window->width, xfc->window->height };
XRectangle box2 = { xfc->offset_x, xfc->offset_y, xfc->scaledWidth, xfc->scaledHeight };
Region reg1 = XCreateRegion();
Region reg2 = XCreateRegion();
XUnionRectWithRegion(&box1, reg1, reg1);
XUnionRectWithRegion(&box2, reg2, reg2);
if (XSubtractRegion(reg1, reg2, reg1) && !XEmptyRegion(reg1))
{
XSetRegion(xfc->display, xfc->gc, reg1);
XFillRectangle(xfc->display, xfc->window->handle, xfc->gc, 0, 0, xfc->window->width, xfc->window->height);
XSetClipMask(xfc->display, xfc->gc, None);
}
XDestroyRegion(reg1);
XDestroyRegion(reg2);
}
picFormat = XRenderFindVisualFormat(xfc->display, xfc->visual);
pa.subwindow_mode = IncludeInferiors;
primaryPicture = XRenderCreatePicture(xfc->display, xfc->primary, picFormat, CPSubwindowMode, &pa);
windowPicture = XRenderCreatePicture(xfc->display, xfc->window->handle, picFormat, CPSubwindowMode, &pa);
XRenderSetPictureFilter(xfc->display, primaryPicture, FilterBilinear, 0, 0);
transform.matrix[0][0] = XDoubleToFixed(xScalingFactor);
transform.matrix[0][1] = XDoubleToFixed(0.0);
transform.matrix[0][2] = XDoubleToFixed(0.0);
transform.matrix[1][0] = XDoubleToFixed(0.0);
transform.matrix[1][1] = XDoubleToFixed(yScalingFactor);
transform.matrix[1][2] = XDoubleToFixed(0.0);
transform.matrix[2][0] = XDoubleToFixed(0.0);
transform.matrix[2][1] = XDoubleToFixed(0.0);
transform.matrix[2][2] = XDoubleToFixed(1.0);
/* calculate and fix up scaled coordinates */
x2 = x + w;
y2 = y + h;
x = floor(x / xScalingFactor) - 1;
y = floor(y / yScalingFactor) - 1;
w = ceil(x2 / xScalingFactor) + 1 - x;
h = ceil(y2 / yScalingFactor) + 1 - y;
XRenderSetPictureTransform(xfc->display, primaryPicture, &transform);
XRenderComposite(xfc->display, PictOpSrc, primaryPicture, 0, windowPicture, x, y, 0, 0, xfc->offset_x + x, xfc->offset_y + y, w, h);
XRenderFreePicture(xfc->display, primaryPicture);
XRenderFreePicture(xfc->display, windowPicture);
}
static gboolean
on_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
GdkGC *gc;
XTransform transform;
double scale;
int wx, wy, ww, wh;
int frame_left, frame_right, frame_top, frame_bottom;
int thumbnail_width, thumbnail_height;
int offset_x, offset_y;
SSWindow *window;
SSThumbnailer *thumbnailer;
Display *display;
display = gdk_x11_get_default_xdisplay ();
thumbnailer = (SSThumbnailer *) data;
window = thumbnailer->window;
if (thumbnailer->thumbnail_pixmap == NULL) {
initialize_thumbnailer_pictures (thumbnailer);
}
gc = gdk_gc_new (thumbnailer->thumbnail_pixmap);
ss_xinerama_get_frame_extents (
// TODO - should we cut out the ->workspace in the line below?
window->workspace->screen->xinerama, window,
&frame_left, &frame_right, &frame_top, &frame_bottom);
wnck_window_get_geometry (window->wnck_window, &wx, &wy, &ww, &wh);
scale = ww > wh ? ww : wh;
scale /= (double) THUMBNAIL_SIZE;
thumbnail_width = thumbnail_height = THUMBNAIL_SIZE;
if (ww > wh) {
thumbnail_height = wh * THUMBNAIL_SIZE / ww;
} else {
thumbnail_width = ww * THUMBNAIL_SIZE / wh;
}
transform.matrix[0][0] = XDoubleToFixed (scale);
transform.matrix[0][1] = XDoubleToFixed (0.0);
transform.matrix[0][2] = XDoubleToFixed (-frame_left * (scale - 1.0));
transform.matrix[1][0] = XDoubleToFixed (0.0);
transform.matrix[1][1] = XDoubleToFixed (scale);
transform.matrix[1][2] = XDoubleToFixed (-frame_top * (scale - 1.0));
transform.matrix[2][0] = XDoubleToFixed (0.0);
transform.matrix[2][1] = XDoubleToFixed (0.0);
transform.matrix[2][2] = XDoubleToFixed (1.0);
XRenderSetPictureTransform (display, thumbnailer->window_picture,
&transform);
XRenderComposite (display, PictOpSrc,
thumbnailer->window_picture, None, thumbnailer->thumbnail_picture,
0, 0, 0, 0, 0, 0, THUMBNAIL_SIZE, THUMBNAIL_SIZE);
offset_x = widget->allocation.x + (THUMBNAIL_SIZE - thumbnail_width) / 2;
offset_y = widget->allocation.y + (THUMBNAIL_SIZE - thumbnail_height) / 2;
gdk_draw_drawable (thumbnailer->drawing_area->window, gc,
thumbnailer->thumbnail_pixmap, 0, 0,
offset_x, offset_y, thumbnail_width, thumbnail_height);
gdk_draw_rectangle (thumbnailer->drawing_area->window,
thumbnailer->drawing_area->style->black_gc, FALSE,
offset_x, offset_y, thumbnail_width - 1, thumbnail_height - 1);
g_object_unref (gc);
return FALSE;
}
void old_tesselate_polygon(QVector<XTrapezoid> *traps, const QPointF *pg, int pgSize,
bool winding)
{
QVector<QEdge> edges;
edges.reserve(128);
qreal ymin(INT_MAX/256);
qreal ymax(INT_MIN/256);
//painter.begin(pg, pgSize);
if (pg[0] != pg[pgSize-1])
qWarning() << Q_FUNC_INFO << "Malformed polygon (first and last points must be identical)";
// generate edge table
// qDebug() << "POINTS:";
for (int x = 0; x < pgSize-1; ++x) {
QEdge edge;
QPointF p1(Q27Dot5ToDouble(FloatToQ27Dot5(pg[x].x())),
Q27Dot5ToDouble(FloatToQ27Dot5(pg[x].y())));
QPointF p2(Q27Dot5ToDouble(FloatToQ27Dot5(pg[x+1].x())),
Q27Dot5ToDouble(FloatToQ27Dot5(pg[x+1].y())));
// qDebug() << " "
// << p1;
edge.winding = p1.y() > p2.y() ? 1 : -1;
if (edge.winding > 0)
qSwap(p1, p2);
edge.p1.x = XDoubleToFixed(p1.x());
edge.p1.y = XDoubleToFixed(p1.y());
edge.p2.x = XDoubleToFixed(p2.x());
edge.p2.y = XDoubleToFixed(p2.y());
edge.m = (p1.y() - p2.y()) / (p1.x() - p2.x()); // line derivative
edge.b = p1.y() - edge.m * p1.x(); // intersection with y axis
edge.m = edge.m != 0.0 ? 1.0 / edge.m : 0.0; // inverted derivative
edges.append(edge);
ymin = qMin(ymin, qreal(XFixedToDouble(edge.p1.y)));
ymax = qMax(ymax, qreal(XFixedToDouble(edge.p2.y)));
}
QList<const QEdge *> et; // edge list
for (int i = 0; i < edges.size(); ++i)
et.append(&edges.at(i));
// sort edge table by min y value
qSort(et.begin(), et.end(), compareEdges);
// eliminate shared edges
for (int i = 0; i < et.size(); ++i) {
for (int k = i+1; k < et.size(); ++k) {
const QEdge *edgeI = et.at(i);
const QEdge *edgeK = et.at(k);
if (edgeK->p1.y > edgeI->p1.y)
break;
if (edgeI->winding != edgeK->winding &&
isEqual(edgeI->p1, edgeK->p1) && isEqual(edgeI->p2, edgeK->p2)
) {
et.removeAt(k);
et.removeAt(i);
--i;
break;
}
}
}
if (ymax <= ymin)
return;
QList<const QEdge *> aet; // edges that intersects the current scanline
// if (ymin < 0)
// ymin = 0;
// if (paintEventClipRegion) // don't scan more lines than we have to
// ymax = paintEventClipRegion->boundingRect().height();
#ifdef QT_DEBUG_TESSELATOR
qDebug("==> ymin = %f, ymax = %f", ymin, ymax);
#endif // QT_DEBUG_TESSELATOR
currentY = ymin; // used by the less than op
for (qreal y = ymin; y < ymax;) {
// fill active edge table with edges that intersect the current line
for (int i = 0; i < et.size(); ++i) {
const QEdge *edge = et.at(i);
if (edge->p1.y > XDoubleToFixed(y))
break;
aet.append(edge);
et.removeAt(i);
--i;
}
// remove processed edges from active edge table
for (int i = 0; i < aet.size(); ++i) {
if (aet.at(i)->p2.y <= XDoubleToFixed(y)) {
aet.removeAt(i);
--i;
}
}
if (aet.size()%2 != 0) {
#ifndef QT_NO_DEBUG
qWarning("QX11PaintEngine: aet out of sync - this should not happen.");
#endif
return;
}
// done?
if (!aet.size()) {
if (!et.size()) {
break;
} else {
y = currentY = XFixedToDouble(et.at(0)->p1.y);
continue;
}
}
// calculate the next y where we have to start a new set of trapezoids
qreal next_y(INT_MAX/256);
for (int i = 0; i < aet.size(); ++i) {
const QEdge *edge = aet.at(i);
if (XFixedToDouble(edge->p2.y) < next_y)
next_y = XFixedToDouble(edge->p2.y);
}
if (et.size() && next_y > XFixedToDouble(et.at(0)->p1.y))
next_y = XFixedToDouble(et.at(0)->p1.y);
int aetSize = aet.size();
for (int i = 0; i < aetSize; ++i) {
for (int k = i+1; k < aetSize; ++k) {
const QEdge *edgeI = aet.at(i);
const QEdge *edgeK = aet.at(k);
qreal m1 = edgeI->m;
qreal b1 = edgeI->b;
qreal m2 = edgeK->m;
qreal b2 = edgeK->b;
if (qAbs(m1 - m2) < 0.001)
continue;
// ### intersect is not calculated correctly when optimized with -O2 (gcc)
volatile qreal intersect = 0;
if (!qIsFinite(b1))
intersect = (1.f / m2) * XFixedToDouble(edgeI->p1.x) + b2;
else if (!qIsFinite(b2))
intersect = (1.f / m1) * XFixedToDouble(edgeK->p1.x) + b1;
else
intersect = (b1*m1 - b2*m2) / (m1 - m2);
if (intersect > y && intersect < next_y)
next_y = intersect;
}
}
XFixed yf, next_yf;
yf = qrealToXFixed(y);
next_yf = qrealToXFixed(next_y);
if (yf == next_yf) {
y = currentY = next_y;
continue;
}
#ifdef QT_DEBUG_TESSELATOR
qDebug("###> y = %f, next_y = %f, %d active edges", y, next_y, aet.size());
qDebug("===> edges");
dump_edges(et);
qDebug("===> active edges");
dump_edges(aet);
#endif
// calc intersection points
QVarLengthArray<QIntersectionPoint> isects(aet.size()+1);
for (int i = 0; i < isects.size()-1; ++i) {
const QEdge *edge = aet.at(i);
isects[i].x = (edge->p1.x != edge->p2.x) ?
((y - edge->b)*edge->m) : XFixedToDouble(edge->p1.x);
isects[i].edge = edge;
}
if (isects.size()%2 != 1)
qFatal("%s: number of intersection points must be odd", Q_FUNC_INFO);
// sort intersection points
qSort(&isects[0], &isects[isects.size()-1], compareIntersections);
// qDebug() << "INTERSECTION_POINTS:";
// for (int i = 0; i < isects.size(); ++i)
// qDebug() << isects[i].edge << isects[i].x;
if (winding) {
// winding fill rule
for (int i = 0; i < isects.size()-1;) {
int winding = 0;
const QEdge *left = isects[i].edge;
const QEdge *right = 0;
winding += isects[i].edge->winding;
for (++i; i < isects.size()-1 && winding != 0; ++i) {
winding += isects[i].edge->winding;
right = isects[i].edge;
}
if (!left || !right)
break;
//painter.addTrapezoid(&toXTrapezoid(yf, next_yf, *left, *right));
traps->append(toXTrapezoid(yf, next_yf, *left, *right));
}
} else {
// odd-even fill rule
for (int i = 0; i < isects.size()-2; i += 2) {
//painter.addTrapezoid(&toXTrapezoid(yf, next_yf, *isects[i].edge, *isects[i+1].edge));
traps->append(toXTrapezoid(yf, next_yf, *isects[i].edge, *isects[i+1].edge));
}
}
y = currentY = next_y;
}
#ifdef QT_DEBUG_TESSELATOR
qDebug("==> number of trapezoids: %d - edge table size: %d\n", traps->size(), et.size());
for (int i = 0; i < traps->size(); ++i)
dump_trap(traps->at(i));
#endif
// optimize by unifying trapezoids that share left/right lines
// and have a common top/bottom edge
// for (int i = 0; i < tps.size(); ++i) {
// for (int k = i+1; k < tps.size(); ++k) {
// if (i != k && tps.at(i).right == tps.at(k).right
// && tps.at(i).left == tps.at(k).left
// && (tps.at(i).top == tps.at(k).bottom
// || tps.at(i).bottom == tps.at(k).top))
// {
// tps[i].bottom = tps.at(k).bottom;
// tps.removeAt(k);
// i = 0;
// break;
// }
// }
// }
//static int i = 0;
//QImage img = painter.end();
//img.save(QString("res%1.png").arg(i++), "PNG");
}
void
PixmapRenderer::drawPixmap(
QPainter& painter, QPixmap const& pixmap)
{
#if !defined(Q_WS_X11)
drawPixmapNoXRender(painter, pixmap);
#else
QPaintDevice* const dev = painter.device();
QPoint offset; // Both x and y will be either zero or negative.
QPaintDevice* const redir_dev = QPainter::redirected(painter.device(), &offset);
QPaintDevice* const paint_dev = redir_dev ? redir_dev : dev;
#if defined(ENABLE_OPENGL)
if (dynamic_cast<QGLWidget*>(paint_dev)) {
drawPixmapNoXRender(painter, pixmap);
return;
}
#endif
QRect const device_rect(
QRect(0, 0, dev->width(), dev->height()).translated(-offset)
);
QRectF const src_rect(pixmap.rect());
Display* const dpy = QX11Info::display();
Picture const src_pict = pixmap.x11PictureHandle();
Picture dst_pict = 0;
if (QWidget* widget = dynamic_cast<QWidget*>(paint_dev)) {
dst_pict = widget->x11PictureHandle();
} else if (QPixmap* pixmap = dynamic_cast<QPixmap*>(paint_dev)) {
dst_pict = pixmap->x11PictureHandle();
}
if (!dst_pict) {
drawPixmapNoXRender(painter, pixmap);
return;
}
// Note that device transform already accounts for offset
// within a destination surface.
QTransform const src_to_dst(painter.deviceTransform());
QTransform const dst_to_src(src_to_dst.inverted());
QPolygonF const dst_poly(src_to_dst.map(src_rect));
XTransform xform = {{
{
XDoubleToFixed(dst_to_src.m11()),
XDoubleToFixed(dst_to_src.m21()),
XDoubleToFixed(dst_to_src.m31())
},
{
XDoubleToFixed(dst_to_src.m12()),
XDoubleToFixed(dst_to_src.m22()),
XDoubleToFixed(dst_to_src.m32())
},
{
XDoubleToFixed(dst_to_src.m13()),
XDoubleToFixed(dst_to_src.m23()),
XDoubleToFixed(dst_to_src.m33())
}
}};
XRenderSetPictureTransform(dpy, src_pict, &xform);
char const* filter = "fast";
if (painter.testRenderHint(QPainter::SmoothPixmapTransform)) {
filter = "good";
}
XRenderSetPictureFilter(dpy, src_pict, filter, 0, 0);
QRectF const dst_rect_precise(dst_poly.boundingRect());
QRect const dst_rect_fitting(
QPoint(
int(ceil(dst_rect_precise.left())),
int(ceil(dst_rect_precise.top()))
),
QPoint(
int(floor(dst_rect_precise.right())) - 1,
int(floor(dst_rect_precise.bottom())) - 1
)
);
QRect dst_bounding_rect(device_rect);
if (painter.hasClipping()) {
QRect const clip_rect(
src_to_dst.map(painter.clipPath()).boundingRect().toRect()
);
dst_bounding_rect = dst_bounding_rect.intersected(clip_rect);
}
QRect const dst_rect(dst_rect_fitting.intersect(dst_bounding_rect));
// Note that XRenderComposite() expects destination coordinates
// everywhere, even for source picture origin.
XRenderComposite(
dpy, PictOpSrc,
src_pict, 0, dst_pict, dst_rect.left(), dst_rect.top(), 0, 0,
dst_rect.left(), dst_rect.top(), dst_rect.width(), dst_rect.height()
);
#endif
}
pictw_t *
simg_postprocess(session_t *ps, pictw_t *src, enum pict_posp_mode mode,
int twidth, int theight, enum align alg, enum align valg,
const XRenderColor *pc) {
static const XRenderColor XRC_TRANS = {
.red = 0, .green = 0, .blue = 0, .alpha = 0
};
if (!pc) pc = &XRC_TRANS;
const int depth = 32;
pictw_t *dest = NULL;
bool transformed = false;
if (!src) {
if (twidth && theight) {
if (!(dest = create_pictw(ps, twidth, theight, depth)))
printfef("(): Failed to create Picture.");
else
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, 0, 0,
twidth, theight);
}
goto simg_postprocess_end;
}
if (!(twidth || theight)
|| (twidth == src->width && theight == src->height))
return src;
// Determine composite paramaters. We have to do this before create
// Picture because the width/height may need to be calculated.
int width = src->width, height = src->height;
if (!twidth) twidth = (double) theight / height * width;
else if (!theight) theight = (double) twidth / width * height;
double ratio_x = 1.0, ratio_y = 1.0;
switch (mode) {
case PICTPOSP_ORIG: break;
case PICTPOSP_TILE: break;
case PICTPOSP_SCALE:
case PICTPOSP_SCALEK:
case PICTPOSP_SCALEE:
case PICTPOSP_SCALEEK:
{
if (twidth) ratio_x = (double) twidth / width;
if (theight) ratio_y = (double) theight / height;
if (PICTPOSP_SCALEK == mode || PICTPOSP_SCALEEK == mode)
ratio_x = ratio_y = MIN(ratio_x, ratio_y);
if (PICTPOSP_SCALEE == mode || PICTPOSP_SCALEEK == mode) {
ratio_x = MAX(1.0f, ratio_x);
ratio_y = MAX(1.0f, ratio_y);
}
width *= ratio_x;
height *= ratio_y;
}
break;
default: assert(0); break;
}
if (!(dest = create_pictw(ps, twidth, theight, depth))) {
printfef("(): Failed to create Picture.");
goto simg_postprocess_end;
}
int x = 0, y = 0;
int num_x = 1, num_y = 1;
if (PICTPOSP_TILE == mode) {
// num_x = ceil((float) twidth / width);
// num_y = ceil((float) theight / height);
num_x = twidth / width;
num_y = theight / height;
}
switch (alg) {
case ALIGN_LEFT: break;
case ALIGN_RIGHT: x = twidth - width * num_x; break;
case ALIGN_MID: x = (twidth - width * num_x) / 2; break;
};
switch (valg) {
case ALIGN_LEFT: break;
case ALIGN_RIGHT: y = theight - height * num_y; break;
case ALIGN_MID: y = (theight - height * num_y) / 2; break;
};
x = MAX(x, 0);
y = MAX(y, 0);
int x2 = MIN(x + width * num_x, twidth),
y2 = MIN(y + height * num_y, theight);
/* if (pc->alpha) */ {
if (src->depth >= 32)
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, 0, 0,
twidth, theight);
else {
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, 0, 0,
twidth, y);
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, 0, y2,
twidth, theight - y2);
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, 0, y,
x, y2 - y);
XRenderFillRectangle(ps->dpy, PictOpSrc, dest->pict, pc, x2, y,
twidth - x2, y2 - y);
}
}
if (src->pict) {
if (1.0 != ratio_x || 1.0 != ratio_y) {
XTransform transform = { .matrix = {
{ XDoubleToFixed(1.0 / ratio_x), XDoubleToFixed(0.0), XDoubleToFixed(0.0) },
{ XDoubleToFixed(0.0), XDoubleToFixed(1.0 / ratio_y), XDoubleToFixed(0.0) },
{ XDoubleToFixed(0.0), XDoubleToFixed(0.0), XDoubleToFixed(1.0) },
} };
transformed = true;
XRenderSetPictureTransform(ps->dpy, src->pict, &transform);
}
int X11Grabber::grabFrame(Image<ColorRgb> & image)
{
if (_XRenderAvailable && !_useXGetImage)
{
double scale_x = static_cast<double>(_windowAttr.width / _horizontalDecimation) / static_cast<double>(_windowAttr.width);
double scale_y = static_cast<double>(_windowAttr.height / _verticalDecimation) / static_cast<double>(_windowAttr.height);
double scale = std::min(scale_y, scale_x);
_transform =
{
{
{
XDoubleToFixed(1),
XDoubleToFixed(0),
XDoubleToFixed(0)
},
{
XDoubleToFixed(0),
XDoubleToFixed(1),
XDoubleToFixed(0)
},
{
XDoubleToFixed(0),
XDoubleToFixed(0),
XDoubleToFixed(scale)
}
}
};
XRenderSetPictureTransform (_x11Display, _srcPicture, &_transform);
XRenderComposite( _x11Display, // dpy
PictOpSrc, // op
_srcPicture, // src
None, // mask
_dstPicture, // dst
_cropLeft / _horizontalDecimation, // src_x _cropLeft
_cropTop / _verticalDecimation, // src_y _cropTop
0, // mask_x
0, // mask_y
0, // dst_x
0, // dst_y
_croppedWidth, // width
_croppedHeight); // height
XSync(_x11Display, False);
if (_XShmAvailable)
{
XShmGetImage(_x11Display, _pixmap, _xImage, 0, 0, AllPlanes);
}
else
{
_xImage = XGetImage(_x11Display, _pixmap, 0, 0, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);
}
}
else
{
if (_XShmAvailable && !_useXGetImage) {
XShmGetImage(_x11Display, _window, _xImage, _cropLeft, _cropTop, AllPlanes);
}
else
{
_xImage = XGetImage(_x11Display, _window, _cropLeft, _cropTop, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);
}
}
if (_xImage == nullptr)
{
Error(_log, "Grab Failed!");
return -1;
}
_imageResampler.processImage(reinterpret_cast<const uint8_t *>(_xImage->data), _xImage->width, _xImage->height, _xImage->bytes_per_line, PIXELFORMAT_BGR32, image);
return 0;
}
void Canvas::copyScaleCanvas(const Canvas* canvas, const Rect& src, const Rect& dst)
{
if (src.size == dst.size)
{
copyCanvas(canvas, src, dst.origin);
return;
}
if (dst.size.w <= 0 || dst.size.h <= 0)
return;
XTransform xform = {{
{ XDoubleToFixed((double)src.size.w / dst.size.w), XDoubleToFixed(0), XDoubleToFixed(src.origin.x) },
{ XDoubleToFixed(0), XDoubleToFixed((double)src.size.h / dst.size.h), XDoubleToFixed(src.origin.y) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &xform);
Point offset = absolutePosition();
XRenderComposite(
display()->xdisplay(), PictOpOver,
canvas->xpicture(), None, xpicture(),
0, 0,
0, 0,
dst.origin.x + offset.x, dst.origin.y + offset.y,
dst.size.w, dst.size.h
);
XTransform identity = {{
{ XDoubleToFixed(1), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(1), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &identity);
}
void Canvas::copyRotatedCanvas(const Canvas* canvas, const Rect& src, const Point& origin)
{
XTransform xform = {{
{ XDoubleToFixed(0), XDoubleToFixed(-1), XDoubleToFixed(0) },
{ XDoubleToFixed(1), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &xform);
Point offset = absolutePosition();
XRenderComposite(
display()->xdisplay(), PictOpOver,
canvas->xpicture(), None, xpicture(),
// src.origin.x, src.origin.y,
// 0, 0,
// origin.x + offset.x, origin.y + offset.y,
// src.size.w, src.size.h
src.origin.x, -src.size.w,
0, 0,
origin.x + offset.x, origin.y + offset.y,
src.size.w, src.size.h
);
XTransform identity = {{
{ XDoubleToFixed(1), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(1), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &identity);
}
int
InitFixedTrapezoids(XParms xp, Parms p, int reps)
{
int i, numTraps;
int rows;
int x, y;
int size, skew;
XTrapezoid *curTrap;
XRenderColor color;
pgc = xp->fggc;
size = p->special;
numTraps = p->objects;
traps = (XTrapezoid *)malloc(numTraps * sizeof(XTrapezoid));
curTrap = traps;
x = size;
y = 0;
rows = 0;
skew = size;
aadraw = XftDrawCreate (xp->d, xp->w,
xp->vinfo.visual,
xp->cmap);
if (p->font && !strcmp (p->font, "add"))
{
XRenderPictFormat templ;
templ.type = PictTypeDirect;
templ.depth = 8;
templ.direct.alpha = 0;
templ.direct.alphaMask = 0xff;
maskFormat = XRenderFindFormat (xp->d,
PictFormatType |
PictFormatDepth |
PictFormatAlpha |
PictFormatAlphaMask,
&templ,
0);
}
else
maskFormat = 0;
color.red = 0;
color.green = 0;
color.blue = 0;
color.alpha = 0xffff;
if (!XftColorAllocValue (xp->d,
xp->vinfo.visual,
xp->cmap,
&color, &aablack))
{
XftDrawDestroy (aadraw);
aadraw = 0;
return 0;
}
color.red = 0xffff;
color.green = 0xffff;
color.blue = 0xffff;
color.alpha = 0xffff;
if (!XftColorAllocValue (xp->d,
xp->vinfo.visual,
xp->cmap,
&color, &aawhite))
{
XftDrawDestroy (aadraw);
aadraw = 0;
return 0;
}
for (i = 0; i != p->objects; i++, curTrap ++) {
curTrap->top = XDoubleToFixed (y);
curTrap->bottom = XDoubleToFixed (y + size);
curTrap->left.p1.x = XDoubleToFixed (x - skew);
curTrap->left.p1.y = XDoubleToFixed (y);
curTrap->left.p2.x = XDoubleToFixed (x + skew - size);
curTrap->left.p2.y = XDoubleToFixed (y + size);
curTrap->right.p1.x = XDoubleToFixed (x - skew + size);
curTrap->right.p1.y = XDoubleToFixed (y);
curTrap->right.p2.x = XDoubleToFixed (x + skew);
curTrap->right.p2.y = XDoubleToFixed (y + size);
skew--;
if (skew < 0) skew = size;
y += size;
rows++;
if (y + size > HEIGHT || rows == MAXROWS) {
rows = 0;
y = 0;
x += 2 * size;
if (x + size > WIDTH) {
x = size;
}
}
}
SetFillStyle(xp, p);
return reps;
}
void
XRenderCompositeDoublePoly (Display *dpy,
int op,
Picture src,
Picture dst,
_Xconst XRenderPictFormat *maskFormat,
int xSrc,
int ySrc,
int xDst,
int yDst,
_Xconst XPointDouble *fpoints,
int npoints,
int winding)
{
Edge *edges;
XTrapezoid *traps;
int i, nedges, ntraps;
XFixed x, y, prevx = 0, prevy = 0, firstx = 0, firsty = 0;
XFixed top = 0, bottom = 0; /* GCCism */
edges = (Edge *) Xmalloc (npoints * sizeof (Edge) +
(npoints * npoints * sizeof (XTrapezoid)));
if (!edges)
return;
traps = (XTrapezoid *) (edges + npoints);
nedges = 0;
for (i = 0; i <= npoints; i++)
{
if (i == npoints)
{
x = firstx;
y = firsty;
}
else
{
x = XDoubleToFixed (fpoints[i].x);
y = XDoubleToFixed (fpoints[i].y);
}
if (i)
{
if (y < top)
top = y;
else if (y > bottom)
bottom = y;
if (prevy < y)
{
edges[nedges].edge.p1.x = prevx;
edges[nedges].edge.p1.y = prevy;
edges[nedges].edge.p2.x = x;
edges[nedges].edge.p2.y = y;
edges[nedges].clockWise = True;
nedges++;
}
else if (prevy > y)
{
edges[nedges].edge.p1.x = x;
edges[nedges].edge.p1.y = y;
edges[nedges].edge.p2.x = prevx;
edges[nedges].edge.p2.y = prevy;
edges[nedges].clockWise = False;
nedges++;
}
/* drop horizontal edges */
}
else
{
top = y;
bottom = y;
firstx = x;
firsty = y;
}
prevx = x;
prevy = y;
}
ntraps = XRenderComputeTrapezoids (edges, nedges, winding, traps);
/* XXX adjust xSrc/xDst */
XRenderCompositeTrapezoids (dpy, op, src, dst, maskFormat, xSrc, ySrc, traps, ntraps);
Xfree (edges);
}
void Thumbnail::onResize()
{
Image* oldImage = _image;
if (_image)
{
XftDrawDestroy(_xftDraw);
XFreeGC(_dpy, _gc);
}
_image = new Image(_dpy, _width, _height);
_gc = XCreateGC(_dpy, _image->pixmap(), 0, 0);
XSetGraphicsExposures(_dpy, _gc, false);
_xftDraw = XftDrawCreate(_dpy, _image->pixmap(), XTools::rgbaVisual()->visual,
DefaultColormap(_dpy, DefaultScreen(_dpy)));
XWindowAttributes attrs;
XGetWindowAttributes(_dpy, _clientWindow, &attrs);
_clientWidth = attrs.width;
_clientHeight= attrs.height;
#ifdef MAEMO4
_clientDecoX = attrs.x;
_clientDecoY = attrs.y;
#endif
int borderWidth = Settings::instance()->borderWidth();
int headerHeight = Resources::instance()->headerMiddle()->height();
int oldClientScaledWidth = _clientScaledWidth;
int oldClientScaledHeight= _clientScaledHeight;
_clientScaledWidth = _width - 2 * borderWidth;
_clientScaledHeight = _height - headerHeight - borderWidth;
double scale = _clientScaledWidth;
scale /= _clientWidth;
_clientDecoXScaled = (int)round(scale * _clientDecoX);
_clientDecoYScaled = (int)round(scale * _clientDecoY);
_clientOffsetX = borderWidth;
_clientOffsetY = headerHeight;
XTransform xform = {{
{ XDoubleToFixed(1.0/scale), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(1.0/scale), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}
};
XRenderSetPictureTransform(_dpy, _clientPict, &xform);
if (_minimized && oldImage != 0)
{
// Workaround for corner case: if this function is called when
// client is minimized, we need to rescale cached pixmap, because
// can't grab new picture from window
// Yes, this function MAY be called when client is minimised - for
// example when thumbnail needs to be resized because number of
// windows changed
Image* temp = new Image(_dpy, _clientScaledWidth, _clientScaledHeight, 32);
XTransform xform = {{
{ XDoubleToFixed(((double)oldClientScaledWidth)/_clientScaledWidth), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(((double)oldClientScaledHeight)/_clientScaledHeight), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) }
}
};
XRenderSetPictureTransform(_dpy, oldImage->picture(), &xform);
XRenderComposite(_dpy, PictOpSrc,
oldImage->picture(), 0, temp->picture(),
_clientOffsetX*_clientScaledWidth/oldClientScaledWidth,
_clientOffsetY*_clientScaledHeight/oldClientScaledHeight,
0, 0,
0, 0,
_clientScaledWidth, _clientScaledHeight
);
XCopyArea(_dpy, temp->pixmap(), _image->pixmap(), _gc,
0, 0,
_clientScaledWidth, _clientScaledHeight,
_clientOffsetX, _clientOffsetY
);
delete temp;
}
_previewValid = false;
delete oldImage;
redraw();
}
void PreviewCursor::load(const QString &name, const QString &theme)
{
Display *dpy = QPaintDevice::x11AppDisplay();
if(m_pict)
XRenderFreePicture(dpy, m_pict);
if(m_handle)
XFreeCursor(dpy, m_handle);
m_pict = 0;
m_handle = 0;
m_width = m_height = 0;
// Load the preview cursor image
XcursorImage *image = XcursorLibraryLoadImage(name.latin1(), theme.latin1(), previewSize);
// If the theme doesn't have this cursor, load the default cursor for now
if(!image)
image = XcursorLibraryLoadImage("left_ptr", theme.latin1(), previewSize);
// TODO The old classic X cursors
if(!image)
return;
// Auto-crop the image (some cursor themes use a fixed image size
// for all cursors, and doing this results in correctly centered images)
cropCursorImage(image);
m_pict = createPicture(image);
m_width = image->width;
m_height = image->height;
// Scale the image if its height is greater than 2x the requested size
if(m_height > previewSize * 2.0)
{
double factor = double(previewSize * 2.0 / m_height);
XTransform xform = {{{XDoubleToFixed(1.0), XDoubleToFixed(0), XDoubleToFixed(0)},
{XDoubleToFixed(0), XDoubleToFixed(1.0), XDoubleToFixed(0)},
{XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(factor)}}};
XRenderSetPictureTransform(dpy, m_pict, &xform);
m_width = int(m_width * factor);
m_height = int(m_height * factor);
}
// We don't need this image anymore
XcursorImageDestroy(image);
// Load the actual cursor we will use
int size = XcursorGetDefaultSize(dpy);
XcursorImages *images = XcursorLibraryLoadImages(name.latin1(), theme.latin1(), size);
if(images)
{
m_handle = XcursorImagesLoadCursor(dpy, images);
XcursorImagesDestroy(images);
}
else
{
images = XcursorLibraryLoadImages("left_ptr", theme.latin1(), size);
m_handle = XcursorImagesLoadCursor(dpy, images);
XcursorImagesDestroy(images);
}
}