/*
Differences between OpenGL and XRender:
- differently specified rectangles (X: width/height, O: x2,y2)
- XRender uses pre-multiplied alpha
*/
void ShowFpsEffect::paintXrender(int fps)
{
xcb_pixmap_t pixmap = xcb_generate_id(xcbConnection());
xcb_create_pixmap(xcbConnection(), 32, pixmap, x11RootWindow(), FPS_WIDTH, MAX_TIME);
XRenderPicture p(pixmap, 32);
xcb_free_pixmap(xcbConnection(), pixmap);
xcb_render_color_t col;
col.alpha = int(alpha * 0xffff);
col.red = int(alpha * 0xffff); // white
col.green = int(alpha * 0xffff);
col.blue = int(alpha * 0xffff);
xcb_rectangle_t rect = {0, 0, FPS_WIDTH, MAX_TIME};
xcb_render_fill_rectangles(xcbConnection(), XCB_RENDER_PICT_OP_SRC, p, col, 1, &rect);
col.red = 0; // blue
col.green = 0;
col.blue = int(alpha * 0xffff);
rect.y = MAX_TIME - fps;
rect.width = FPS_WIDTH;
rect.height = fps;
xcb_render_fill_rectangles(xcbConnection(), XCB_RENDER_PICT_OP_SRC, p, col, 1, &rect);
col.red = 0; // black
col.green = 0;
col.blue = 0;
QVector<xcb_rectangle_t> rects;
for (int i = 10;
i < MAX_TIME;
i += 10) {
xcb_rectangle_t rect = {0, int16_t(MAX_TIME - i), uint16_t(FPS_WIDTH), 1};
rects << rect;
}
xcb_render_fill_rectangles(xcbConnection(), XCB_RENDER_PICT_OP_SRC, p, col, rects.count(), rects.constData());
xcb_render_composite(xcbConnection(), alpha != 1.0 ? XCB_RENDER_PICT_OP_OVER : XCB_RENDER_PICT_OP_SRC, p, XCB_RENDER_PICTURE_NONE,
effects->xrenderBufferPicture(), 0, 0, 0, 0, x, y, FPS_WIDTH, MAX_TIME);
// Paint FPS graph
paintFPSGraph(x + FPS_WIDTH, y);
// Paint amount of rendered pixels graph
paintDrawSizeGraph(x + FPS_WIDTH + MAX_TIME, y);
// Paint FPS numerical value
if (fpsTextRect.isValid()) {
QImage textImg(fpsTextImage(fps));
XRenderPicture textPic(textImg);
xcb_render_composite(xcbConnection(), XCB_RENDER_PICT_OP_OVER, textPic, XCB_RENDER_PICTURE_NONE,
effects->xrenderBufferPicture(), 0, 0, 0, 0, fpsTextRect.x(), fpsTextRect.y(), textImg.width(), textImg.height());
effects->addRepaint(fpsTextRect);
}
}
static void Prepare(vout_display_t *vd, picture_t *pic, subpicture_t *subpic,
vlc_tick_t date)
{
const video_format_t *fmt = &vd->source;
vout_display_sys_t *sys = vd->sys;
xcb_connection_t *conn = sys->conn;
size_t offset = PictureAttach(vd, pic);
if (offset != (size_t)-1) {
xcb_shm_put_image(conn, sys->drawable.source, sys->gc,
pic->p->i_pitch / pic->p->i_pixel_pitch,
pic->p->i_lines, 0, 0,
pic->p->i_pitch / pic->p->i_pixel_pitch,
pic->p->i_lines, 0, 0, 32, XCB_IMAGE_FORMAT_Z_PIXMAP,
0, sys->segment, offset);
} else {
xcb_put_image(conn, XCB_IMAGE_FORMAT_Z_PIXMAP, sys->drawable.source,
sys->gc, pic->p->i_pitch / pic->p->i_pixel_pitch,
pic->p->i_lines, 0, 0, 0, 32,
pic->p->i_pitch * pic->p->i_lines, pic->p->p_pixels);
}
/* Crop the picture with pixel accuracy */
xcb_render_composite(conn, XCB_RENDER_PICT_OP_SRC,
sys->picture.source, XCB_RENDER_PICTURE_NONE,
sys->picture.crop,
fmt->i_x_offset, fmt->i_y_offset, 0, 0,
0, 0, fmt->i_visible_width, fmt->i_visible_height);
/* Blank background */
static const xcb_render_color_t black_color = { 0, 0, 0, 0xffff };
xcb_rectangle_t rects[] = {
{ 0, 0, vd->cfg->display.width, vd->cfg->display.height },
};
xcb_render_fill_rectangles(conn, XCB_RENDER_PICT_OP_SRC,
sys->picture.scale, black_color,
ARRAY_SIZE(rects), rects);
/* Scale and orient the picture */
xcb_render_composite(conn, XCB_RENDER_PICT_OP_SRC,
sys->picture.crop, XCB_RENDER_PICTURE_NONE,
sys->picture.scale, sys->src_x, sys->src_y, 0, 0,
sys->place.x, sys->place.y,
sys->place.width, sys->place.height);
if (offset != (size_t)-1)
PictureDetach(vd);
/* Blend subpictures */
if (subpic != NULL)
for (subpicture_region_t *r = subpic->p_region; r != NULL;
r = r->p_next)
RenderRegion(vd, subpic, r);
xcb_flush(conn);
(void) date;
}
void SceneXrender::Window::prepareTempPixmap()
{
const QSize oldSize = temp_visibleRect.size();
temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos());
if (s_tempPicture && (oldSize.width() < temp_visibleRect.width() || oldSize.height() < temp_visibleRect.height())) {
delete s_tempPicture;
s_tempPicture = NULL;
scene_setXRenderOffscreenTarget(0); // invalidate, better crash than cause weird results for developers
}
if (!s_tempPicture) {
xcb_pixmap_t pix = xcb_generate_id(connection());
xcb_create_pixmap(connection(), 32, pix, rootWindow(), temp_visibleRect.width(), temp_visibleRect.height());
s_tempPicture = new XRenderPicture(pix, 32);
xcb_free_pixmap(connection(), pix);
}
const xcb_render_color_t transparent = {0, 0, 0, 0};
const xcb_rectangle_t rect = {0, 0, uint16_t(temp_visibleRect.width()), uint16_t(temp_visibleRect.height())};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, *s_tempPicture, transparent, 1, &rect);
}
void MouseMarkEffect::addRect(const QPoint &p1, const QPoint &p2, xcb_rectangle_t *r, xcb_render_color_t *c)
{
r->x = qMin(p1.x(), p2.x()) - width_2;
r->y = qMin(p1.y(), p2.y()) - width_2;
r->width = qAbs(p1.x()-p2.x()) + 1 + width_2;
r->height = qAbs(p1.y()-p2.y()) + 1 + width_2;
// fast move -> large rect, <strike>tess...</strike> interpolate a line
if (r->width > 3*width/2 && r->height > 3*width/2) {
const int n = sqrt(r->width*r->width + r->height*r->height) / width;
xcb_rectangle_t *rects = new xcb_rectangle_t[n-1];
const int w = p1.x() < p2.x() ? r->width : -r->width;
const int h = p1.y() < p2.y() ? r->height : -r->height;
for (int i = 1; i < n; ++i) {
rects[i-1].x = p1.x() + i*w/n;
rects[i-1].y = p1.y() + i*h/n;
rects[i-1].width = rects[i-1].height = width;
}
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, effects->xrenderBufferPicture(), *c, n - 1, rects);
delete [] rects;
r->x = p1.x();
r->y = p1.y();
r->width = r->height = width;
}
}
void NonCompositedOutlineVisual::show()
{
if (!m_initialized) {
const QRect geo(0, 0, 1, 1);
const uint32_t values[] = {true};
// TODO: use template variant
m_leftOutline.create(geo, XCB_CW_OVERRIDE_REDIRECT, values);
m_rightOutline.create(geo, XCB_CW_OVERRIDE_REDIRECT, values);
m_topOutline.create(geo, XCB_CW_OVERRIDE_REDIRECT, values);
m_bottomOutline.create(geo, XCB_CW_OVERRIDE_REDIRECT, values);
m_initialized = true;
}
const int defaultDepth = Xcb::defaultDepth();
const QRect &outlineGeometry = outline()->geometry();
// left/right parts are between top/bottom, they don't reach as far as the corners
const uint16_t verticalWidth = 5;
const uint16_t verticalHeight = outlineGeometry.height() - 10;
const uint16_t horizontalWidth = outlineGeometry.width();
const uint horizontalHeight = 5;
m_leftOutline.setGeometry(outlineGeometry.x(), outlineGeometry.y() + 5, verticalWidth, verticalHeight);
m_rightOutline.setGeometry(outlineGeometry.x() + outlineGeometry.width() - 5, outlineGeometry.y() + 5, verticalWidth, verticalHeight);
m_topOutline.setGeometry(outlineGeometry.x(), outlineGeometry.y(), horizontalWidth, horizontalHeight);
m_bottomOutline.setGeometry(outlineGeometry.x(), outlineGeometry.y() + outlineGeometry.height() - 5, horizontalWidth, horizontalHeight);
const xcb_render_color_t white = {0xffff, 0xffff, 0xffff, 0xffff};
QColor qGray(Qt::gray);
const xcb_render_color_t gray = {
uint16_t(0xffff * qGray.redF()),
uint16_t(0xffff * qGray.greenF()),
uint16_t(0xffff * qGray.blueF()),
0xffff
};
const xcb_render_color_t black = {0, 0, 0, 0xffff};
{
xcb_pixmap_t xpix = xcb_generate_id(connection());
xcb_create_pixmap(connection(), defaultDepth, xpix, rootWindow(), verticalWidth, verticalHeight);
XRenderPicture pic(xpix, defaultDepth);
xcb_rectangle_t rect = {0, 0, 5, verticalHeight};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, white, 1, &rect);
rect.x = 1;
rect.width = 3;
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, gray, 1, &rect);
rect.x = 2;
rect.width = 1;
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, black, 1, &rect);
m_leftOutline.setBackgroundPixmap(xpix);
m_rightOutline.setBackgroundPixmap(xpix);
// According to the XSetWindowBackgroundPixmap documentation the pixmap can be freed.
xcb_free_pixmap(connection(), xpix);
}
{
xcb_pixmap_t xpix = xcb_generate_id(connection());
xcb_create_pixmap(connection(), defaultDepth, xpix, rootWindow(), horizontalWidth, horizontalHeight);
XRenderPicture pic(xpix, defaultDepth);
xcb_rectangle_t rect = {0, 0, horizontalWidth, horizontalHeight};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, white, 1, &rect);
xcb_rectangle_t grayRects[] = {
{1, 1, uint16_t(horizontalWidth -2), 3},
{1, 4, 3, 1},
{int16_t(horizontalWidth - 4), 4, 3, 1}
};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, gray, 3, grayRects);
xcb_rectangle_t blackRects[] = {
{2, 2, uint16_t(horizontalWidth -4), 1},
{2, 3, 1, 2},
{int16_t(horizontalWidth - 3), 3, 1, 2}
};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, black, 3, blackRects);
m_topOutline.setBackgroundPixmap(xpix);
// According to the XSetWindowBackgroundPixmap documentation the pixmap can be freed.
xcb_free_pixmap(connection(), xpix);
}
{
xcb_pixmap_t xpix = xcb_generate_id(connection());
xcb_create_pixmap(connection(), defaultDepth, xpix, rootWindow(), outlineGeometry.width(), 5);
XRenderPicture pic(xpix, defaultDepth);
xcb_rectangle_t rect = {0, 0, horizontalWidth, horizontalHeight};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, white, 1, &rect);
xcb_rectangle_t grayRects[] = {
{1, 1, uint16_t(horizontalWidth -2), 3},
{1, 0, 3, 1},
{int16_t(horizontalWidth - 4), 0, 3, 1}
};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, gray, 3, grayRects);
xcb_rectangle_t blackRects[] = {
{2, 2, uint16_t(horizontalWidth -4), 1},
{2, 0, 1, 2},
{int16_t(horizontalWidth - 3), 0, 1, 2}
};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, pic, black, 3, blackRects);
m_bottomOutline.setBackgroundPixmap(xpix);
// According to the XSetWindowBackgroundPixmap documentation the pixmap can be freed.
xcb_free_pixmap(connection(), xpix);
}
forEachWindow(&Xcb::Window::clear);
forEachWindow(&Xcb::Window::map);
}
void SnapHelperEffect::postPaintScreen()
{
effects->postPaintScreen();
if (m_timeline.currentValue() != 0.0) {
// Display the guide
if (effects->isOpenGLCompositing()) {
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
ShaderBinder binder(ShaderManager::ColorShader);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
QColor color;
color.setRedF(0.5);
color.setGreenF(0.5);
color.setBlueF(0.5);
color.setAlphaF(m_timeline.currentValue() * 0.5);
vbo->setColor(color);
glLineWidth(4.0);
QVector<float> verts;
verts.reserve(effects->numScreens() * 24);
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect& rect = effects->clientArea(ScreenArea, i, 0);
int midX = rect.x() + rect.width() / 2;
int midY = rect.y() + rect.height() / 2 ;
int halfWidth = m_window->width() / 2;
int halfHeight = m_window->height() / 2;
// Center lines
verts << rect.x() + rect.width() / 2 << rect.y();
verts << rect.x() + rect.width() / 2 << rect.y() + rect.height();
verts << rect.x() << rect.y() + rect.height() / 2;
verts << rect.x() + rect.width() << rect.y() + rect.height() / 2;
// Window outline
// The +/- 2 is to prevent line overlap
verts << midX - halfWidth + 2 << midY - halfHeight;
verts << midX + halfWidth + 2 << midY - halfHeight;
verts << midX + halfWidth << midY - halfHeight + 2;
verts << midX + halfWidth << midY + halfHeight + 2;
verts << midX + halfWidth - 2 << midY + halfHeight;
verts << midX - halfWidth - 2 << midY + halfHeight;
verts << midX - halfWidth << midY + halfHeight - 2;
verts << midX - halfWidth << midY - halfHeight - 2;
}
vbo->setData(verts.count() / 2, 2, verts.data(), NULL);
vbo->render(GL_LINES);
glDisable(GL_BLEND);
glLineWidth(1.0);
}
if ( effects->compositingType() == XRenderCompositing ) {
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect& rect = effects->clientArea( ScreenArea, i, 0 );
int midX = rect.x() + rect.width() / 2;
int midY = rect.y() + rect.height() / 2 ;
int halfWidth = m_window->width() / 2;
int halfHeight = m_window->height() / 2;
xcb_rectangle_t rects[6];
// Center lines
rects[0].x = rect.x() + rect.width() / 2 - 2;
rects[0].y = rect.y();
rects[0].width = 4;
rects[0].height = rect.height();
rects[1].x = rect.x();
rects[1].y = rect.y() + rect.height() / 2 - 2;
rects[1].width = rect.width();
rects[1].height = 4;
// Window outline
// The +/- 4 is to prevent line overlap
rects[2].x = midX - halfWidth + 4;
rects[2].y = midY - halfHeight;
rects[2].width = 2*halfWidth - 4;
rects[2].height = 4;
rects[3].x = midX + halfWidth - 4;
rects[3].y = midY - halfHeight + 4;
rects[3].width = 4;
rects[3].height = 2*halfHeight - 4;
rects[4].x = midX - halfWidth;
rects[4].y = midY + halfHeight - 4;
rects[4].width = 2*halfWidth - 4;
rects[4].height = 4;
rects[5].x = midX - halfWidth;
rects[5].y = midY - halfHeight;
rects[5].width = 4;
rects[5].height = 2*halfHeight - 4;
xcb_render_fill_rectangles(xcbConnection(), XCB_RENDER_PICT_OP_OVER, effects->xrenderBufferPicture(),
preMultiply(QColor(128, 128, 128, m_timeline.currentValue()*128)), 6, rects);
}
#endif
}
if (effects->compositingType() == QPainterCompositing) {
QPainter *painter = effects->scenePainter();
painter->save();
QColor color;
color.setRedF(0.5);
color.setGreenF(0.5);
color.setBlueF(0.5);
color.setAlphaF(m_timeline.currentValue() * 0.5);
QPen pen(color);
pen.setWidth(4);
painter->setPen(pen);
painter->setBrush(Qt::NoBrush);
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect &rect = effects->clientArea(ScreenArea, i, 0);
// Center lines
painter->drawLine(rect.center().x(), rect.y(), rect.center().x(), rect.y() + rect.height());
painter->drawLine(rect.x(), rect.center().y(), rect.x() + rect.width(), rect.center().y());
// window outline
QRect windowRect(rect.center(), m_window->geometry().size());
painter->drawRect(windowRect.translated(-windowRect.width()/2, -windowRect.height()/2));
}
painter->restore();
}
} else if (m_window && !m_active) {
if (m_window->isDeleted())
m_window->unrefWindow();
m_window = NULL;
}
}
static void RenderRegion(vout_display_t *vd, const subpicture_t *subpic,
const subpicture_region_t *reg)
{
vout_display_sys_t *sys = vd->sys;
xcb_connection_t *conn = sys->conn;
const vout_display_place_t *place = &sys->place;
picture_t *pic = reg->p_picture;
unsigned sw = reg->fmt.i_width;
unsigned sh = reg->fmt.i_height;
xcb_rectangle_t rects[] = { { 0, 0, sw, sh }, };
xcb_create_pixmap(conn, 32, sys->drawable.subpic, sys->root, sw, sh);
xcb_create_pixmap(conn, 8, sys->drawable.alpha, sys->root, sw, sh);
xcb_render_create_picture(conn, sys->picture.subpic, sys->drawable.subpic,
sys->format.argb, 0, NULL);
xcb_render_create_picture(conn, sys->picture.alpha, sys->drawable.alpha,
sys->format.alpha, 0, NULL);
/* Upload region (TODO: use FD passing for SPU?) */
xcb_put_image(conn, XCB_IMAGE_FORMAT_Z_PIXMAP, sys->drawable.subpic,
sys->gc, pic->p->i_pitch / pic->p->i_pixel_pitch,
pic->p->i_lines, 0, 0, 0, 32,
pic->p->i_pitch * pic->p->i_lines, pic->p->p_pixels);
/* Copy alpha channel */
xcb_render_composite(conn, XCB_RENDER_PICT_OP_SRC,
sys->picture.subpic, XCB_RENDER_PICTURE_NONE,
sys->picture.alpha, 0, 0, 0, 0, 0, 0, sw, sh);
/* Force alpha channel to maximum (add 100% and clip).
* This is to compensate RENDER expecting pre-multiplied RGB
* while VLC uses straight RGB.
*/
static const xcb_render_color_t alpha_one_color = { 0, 0, 0, 0xffff };
xcb_render_fill_rectangles(conn, XCB_RENDER_PICT_OP_ADD,
sys->picture.subpic, alpha_one_color,
ARRAY_SIZE(rects), rects);
/* Multiply by region and subpicture alpha factors */
static const float alpha_fixed = 0xffffp0f / (0xffp0f * 0xffp0f);
xcb_render_color_t alpha_color = {
0, 0, 0, lroundf(reg->i_alpha * subpic->i_alpha * alpha_fixed) };
xcb_render_fill_rectangles(conn, XCB_RENDER_PICT_OP_IN_REVERSE,
sys->picture.subpic, alpha_color,
ARRAY_SIZE(rects), rects);
/* Mask in the original alpha channel then renver over the scaled pixmap.
* Mask (pre)multiplies RGB channels and restores the alpha channel.
*/
int_fast16_t dx = place->x + reg->i_x * place->width
/ subpic->i_original_picture_width;
int_fast16_t dy = place->y + reg->i_y * place->height
/ subpic->i_original_picture_height;
uint_fast16_t dw = (reg->i_x + reg->fmt.i_visible_width) * place->width
/ subpic->i_original_picture_width;
uint_fast16_t dh = (reg->i_y + reg->fmt.i_visible_height) * place->height
/ subpic->i_original_picture_height;
xcb_render_composite(conn, XCB_RENDER_PICT_OP_OVER,
sys->picture.subpic, sys->picture.alpha,
sys->picture.scale, 0, 0, 0, 0, dx, dy, dw, dh);
xcb_render_free_picture(conn, sys->picture.alpha);
xcb_render_free_picture(conn, sys->picture.subpic);
xcb_free_pixmap(conn, sys->drawable.alpha);
xcb_free_pixmap(conn, sys->drawable.subpic);
}
// paint the window
void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintData data)
{
setTransformedShape(QRegion()); // maybe nothing will be painted
// check if there is something to paint
bool opaque = isOpaque() && qFuzzyCompare(data.opacity(), 1.0);
/* HACK: It seems this causes painting glitches, disable temporarily
if (( mask & PAINT_WINDOW_OPAQUE ) ^ ( mask & PAINT_WINDOW_TRANSLUCENT ))
{ // We are only painting either opaque OR translucent windows, not both
if ( mask & PAINT_WINDOW_OPAQUE && !opaque )
return; // Only painting opaque and window is translucent
if ( mask & PAINT_WINDOW_TRANSLUCENT && opaque )
return; // Only painting translucent and window is opaque
}*/
// Intersect the clip region with the rectangle the window occupies on the screen
if (!(mask & (PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_TRANSFORMED)))
region &= toplevel->visibleRect();
if (region.isEmpty())
return;
XRenderWindowPixmap *pixmap = windowPixmap<XRenderWindowPixmap>();
if (!pixmap || !pixmap->isValid()) {
return;
}
xcb_render_picture_t pic = pixmap->picture();
if (pic == XCB_RENDER_PICTURE_NONE) // The render format can be null for GL and/or Xv visuals
return;
toplevel->resetDamage();
// set picture filter
if (options->isXrenderSmoothScale()) { // only when forced, it's slow
if (mask & PAINT_WINDOW_TRANSFORMED)
filter = ImageFilterGood;
else if (mask & PAINT_SCREEN_TRANSFORMED)
filter = ImageFilterGood;
else
filter = ImageFilterFast;
} else
filter = ImageFilterFast;
// do required transformations
const QRect wr = mapToScreen(mask, data, QRect(0, 0, width(), height()));
QRect cr = QRect(toplevel->clientPos(), toplevel->clientSize()); // Client rect (in the window)
qreal xscale = 1;
qreal yscale = 1;
bool scaled = false;
Client *client = dynamic_cast<Client*>(toplevel);
Deleted *deleted = dynamic_cast<Deleted*>(toplevel);
const QRect decorationRect = toplevel->decorationRect();
if (((client && !client->noBorder()) || (deleted && !deleted->noBorder())) &&
true) {
// decorated client
transformed_shape = decorationRect;
if (toplevel->shape()) {
// "xeyes" + decoration
transformed_shape -= cr;
transformed_shape += shape();
}
} else {
transformed_shape = shape();
}
if (toplevel->hasShadow())
transformed_shape |= toplevel->shadow()->shadowRegion();
xcb_render_transform_t xform = {
DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1)
};
static const xcb_render_transform_t identity = {
DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1)
};
if (mask & PAINT_WINDOW_TRANSFORMED) {
xscale = data.xScale();
yscale = data.yScale();
}
if (mask & PAINT_SCREEN_TRANSFORMED) {
xscale *= screen_paint.xScale();
yscale *= screen_paint.yScale();
}
if (!qFuzzyCompare(xscale, 1.0) || !qFuzzyCompare(yscale, 1.0)) {
scaled = true;
xform.matrix11 = DOUBLE_TO_FIXED(1.0 / xscale);
xform.matrix22 = DOUBLE_TO_FIXED(1.0 / yscale);
// transform the shape for clipping in paintTransformedScreen()
QVector<QRect> rects = transformed_shape.rects();
for (int i = 0; i < rects.count(); ++i) {
QRect& r = rects[ i ];
r.setRect(qRound(r.x() * xscale), qRound(r.y() * yscale),
qRound(r.width() * xscale), qRound(r.height() * yscale));
}
transformed_shape.setRects(rects.constData(), rects.count());
}
transformed_shape.translate(mapToScreen(mask, data, QPoint(0, 0)));
PaintClipper pcreg(region); // clip by the region to paint
PaintClipper pc(transformed_shape); // clip by window's shape
const bool wantShadow = m_shadow && !m_shadow->shadowRegion().isEmpty();
// In order to obtain a pixel perfect rescaling
// we need to blit the window content togheter with
// decorations in a temporary pixmap and scale
// the temporary pixmap at the end.
// We should do this only if there is scaling and
// the window has border
// This solves a number of glitches and on top of this
// it optimizes painting quite a bit
const bool blitInTempPixmap = xRenderOffscreen() || (data.crossFadeProgress() < 1.0 && !opaque) ||
(scaled && (wantShadow || (client && !client->noBorder()) || (deleted && !deleted->noBorder())));
xcb_render_picture_t renderTarget = m_scene->bufferPicture();
if (blitInTempPixmap) {
if (scene_xRenderOffscreenTarget()) {
temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos());
renderTarget = *scene_xRenderOffscreenTarget();
} else {
prepareTempPixmap();
renderTarget = *s_tempPicture;
}
} else {
xcb_render_set_picture_transform(connection(), pic, xform);
if (filter == ImageFilterGood) {
setPictureFilter(pic, KWin::Scene::ImageFilterGood);
}
//BEGIN OF STUPID RADEON HACK
// This is needed to avoid hitting a fallback in the radeon driver.
// The Render specification states that sampling pixels outside the
// source picture results in alpha=0 pixels. This can be achieved by
// setting the border color to transparent black, but since the border
// color has the same format as the texture, it only works when the
// texture has an alpha channel. So the driver falls back to software
// when the repeat mode is RepeatNone, the picture has a non-identity
// transformation matrix, and doesn't have an alpha channel.
// Since we only scale the picture, we can work around this by setting
// the repeat mode to RepeatPad.
if (!window()->hasAlpha()) {
const uint32_t values[] = {XCB_RENDER_REPEAT_PAD};
xcb_render_change_picture(connection(), pic, XCB_RENDER_CP_REPEAT, values);
}
//END OF STUPID RADEON HACK
}
#define MAP_RECT_TO_TARGET(_RECT_) \
if (blitInTempPixmap) _RECT_.translate(-temp_visibleRect.topLeft()); else _RECT_ = mapToScreen(mask, data, _RECT_)
//BEGIN deco preparations
bool noBorder = true;
xcb_render_picture_t left = XCB_RENDER_PICTURE_NONE;
xcb_render_picture_t top = XCB_RENDER_PICTURE_NONE;
xcb_render_picture_t right = XCB_RENDER_PICTURE_NONE;
xcb_render_picture_t bottom = XCB_RENDER_PICTURE_NONE;
QRect dtr, dlr, drr, dbr;
const SceneXRenderDecorationRenderer *renderer = nullptr;
if (client) {
if (client && !client->noBorder()) {
if (client->isDecorated()) {
SceneXRenderDecorationRenderer *r = static_cast<SceneXRenderDecorationRenderer*>(client->decoratedClient()->renderer());
if (r) {
r->render();
renderer = r;
}
}
noBorder = client->noBorder();
client->layoutDecorationRects(dlr, dtr, drr, dbr);
}
}
if (deleted && !deleted->noBorder()) {
renderer = static_cast<const SceneXRenderDecorationRenderer*>(deleted->decorationRenderer());
noBorder = deleted->noBorder();
deleted->layoutDecorationRects(dlr, dtr, drr, dbr);
}
if (renderer) {
left = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Left);
top = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Top);
right = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Right);
bottom = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Bottom);
}
if (!noBorder) {
MAP_RECT_TO_TARGET(dtr);
MAP_RECT_TO_TARGET(dlr);
MAP_RECT_TO_TARGET(drr);
MAP_RECT_TO_TARGET(dbr);
}
//END deco preparations
//BEGIN shadow preparations
QRect stlr, str, strr, srr, sbrr, sbr, sblr, slr;
SceneXRenderShadow* m_xrenderShadow = static_cast<SceneXRenderShadow*>(m_shadow);
if (wantShadow) {
m_xrenderShadow->layoutShadowRects(str, strr, srr, sbrr, sbr, sblr, slr, stlr);
MAP_RECT_TO_TARGET(stlr);
MAP_RECT_TO_TARGET(str);
MAP_RECT_TO_TARGET(strr);
MAP_RECT_TO_TARGET(srr);
MAP_RECT_TO_TARGET(sbrr);
MAP_RECT_TO_TARGET(sbr);
MAP_RECT_TO_TARGET(sblr);
MAP_RECT_TO_TARGET(slr);
}
//BEGIN end preparations
//BEGIN client preparations
QRect dr = cr;
if (blitInTempPixmap) {
dr.translate(-temp_visibleRect.topLeft());
} else {
dr = mapToScreen(mask, data, dr); // Destination rect
if (scaled) {
cr.moveLeft(cr.x() * xscale);
cr.moveTop(cr.y() * yscale);
}
}
const int clientRenderOp = (opaque || blitInTempPixmap) ? XCB_RENDER_PICT_OP_SRC : XCB_RENDER_PICT_OP_OVER;
//END client preparations
#undef MAP_RECT_TO_TARGET
for (PaintClipper::Iterator iterator; !iterator.isDone(); iterator.next()) {
#define RENDER_SHADOW_TILE(_TILE_, _RECT_) \
xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, m_xrenderShadow->picture(SceneXRenderShadow::ShadowElement##_TILE_), \
shadowAlpha, renderTarget, 0, 0, 0, 0, _RECT_.x(), _RECT_.y(), _RECT_.width(), _RECT_.height())
//shadow
if (wantShadow) {
xcb_render_picture_t shadowAlpha = XCB_RENDER_PICTURE_NONE;
if (!opaque) {
shadowAlpha = xRenderBlendPicture(data.opacity());
}
RENDER_SHADOW_TILE(TopLeft, stlr);
RENDER_SHADOW_TILE(Top, str);
RENDER_SHADOW_TILE(TopRight, strr);
RENDER_SHADOW_TILE(Left, slr);
RENDER_SHADOW_TILE(Right, srr);
RENDER_SHADOW_TILE(BottomLeft, sblr);
RENDER_SHADOW_TILE(Bottom, sbr);
RENDER_SHADOW_TILE(BottomRight, sbrr);
}
#undef RENDER_SHADOW_TILE
// Paint the window contents
if (!(client && client->isShade())) {
xcb_render_picture_t clientAlpha = XCB_RENDER_PICTURE_NONE;
if (!opaque) {
clientAlpha = xRenderBlendPicture(data.opacity());
}
xcb_render_composite(connection(), clientRenderOp, pic, clientAlpha, renderTarget,
cr.x(), cr.y(), 0, 0, dr.x(), dr.y(), dr.width(), dr.height());
if (data.crossFadeProgress() < 1.0 && data.crossFadeProgress() > 0.0) {
XRenderWindowPixmap *previous = previousWindowPixmap<XRenderWindowPixmap>();
if (previous && previous != pixmap) {
static XRenderPicture cFadeAlpha(XCB_RENDER_PICTURE_NONE);
static xcb_render_color_t cFadeColor = {0, 0, 0, 0};
cFadeColor.alpha = uint16_t((1.0 - data.crossFadeProgress()) * 0xffff);
if (cFadeAlpha == XCB_RENDER_PICTURE_NONE) {
cFadeAlpha = xRenderFill(cFadeColor);
} else {
xcb_rectangle_t rect = {0, 0, 1, 1};
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, cFadeAlpha, cFadeColor , 1, &rect);
}
if (previous->size() != pixmap->size()) {
xcb_render_transform_t xform2 = {
DOUBLE_TO_FIXED(FIXED_TO_DOUBLE(xform.matrix11) * previous->size().width() / pixmap->size().width()), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(FIXED_TO_DOUBLE(xform.matrix22) * previous->size().height() / pixmap->size().height()), DOUBLE_TO_FIXED(0),
DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1)
};
xcb_render_set_picture_transform(connection(), previous->picture(), xform2);
}
xcb_render_composite(connection(), opaque ? XCB_RENDER_PICT_OP_OVER : XCB_RENDER_PICT_OP_ATOP,
previous->picture(), cFadeAlpha, renderTarget,
cr.x(), cr.y(), 0, 0, dr.x(), dr.y(), dr.width(), dr.height());
if (previous->size() != pixmap->size()) {
xcb_render_set_picture_transform(connection(), previous->picture(), identity);
}
}
}
if (!opaque)
transformed_shape = QRegion();
}
if (client || deleted) {
if (!noBorder) {
xcb_render_picture_t decorationAlpha = xRenderBlendPicture(data.opacity());
auto renderDeco = [decorationAlpha, renderTarget](xcb_render_picture_t deco, const QRect &rect) {
if (deco == XCB_RENDER_PICTURE_NONE) {
return;
}
xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, deco, decorationAlpha, renderTarget,
0, 0, 0, 0, rect.x(), rect.y(), rect.width(), rect.height());
};
renderDeco(top, dtr);
renderDeco(left, dlr);
renderDeco(right, drr);
renderDeco(bottom, dbr);
}
}
if (data.brightness() != 1.0) {
// fake brightness change by overlaying black
const float alpha = (1 - data.brightness()) * data.opacity();
xcb_rectangle_t rect;
if (blitInTempPixmap) {
rect.x = -temp_visibleRect.left();
rect.y = -temp_visibleRect.top();
rect.width = width();
rect.height = height();
} else {
rect.x = wr.x();
rect.y = wr.y();
rect.width = wr.width();
rect.height = wr.height();
}
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_OVER, renderTarget,
preMultiply(data.brightness() < 1.0 ? QColor(0,0,0,255*alpha) : QColor(255,255,255,-alpha*255)),
1, &rect);
}
if (blitInTempPixmap) {
const QRect r = mapToScreen(mask, data, temp_visibleRect);
xcb_render_set_picture_transform(connection(), *s_tempPicture, xform);
setPictureFilter(*s_tempPicture, filter);
xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *s_tempPicture,
XCB_RENDER_PICTURE_NONE, m_scene->bufferPicture(),
0, 0, 0, 0, r.x(), r.y(), r.width(), r.height());
xcb_render_set_picture_transform(connection(), *s_tempPicture, identity);
}
}
if (scaled && !blitInTempPixmap) {
xcb_render_set_picture_transform(connection(), pic, identity);
if (filter == ImageFilterGood)
setPictureFilter(pic, KWin::Scene::ImageFilterFast);
if (!window()->hasAlpha()) {
const uint32_t values[] = {XCB_RENDER_REPEAT_NONE};
xcb_render_change_picture(connection(), pic, XCB_RENDER_CP_REPEAT, values);
}
}
if (xRenderOffscreen())
scene_setXRenderOffscreenTarget(*s_tempPicture);
}
// fill the screen background
void SceneXrender::paintBackground(QRegion region)
{
xcb_render_color_t col = { 0, 0, 0, 0xffff }; // black
const QVector<xcb_rectangle_t> &rects = Xcb::regionToRects(region);
xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, bufferPicture(), col, rects.count(), rects.data());
}
