static xcb_cursor_t create_empty_cursor(xcb_connection_t *conn, xcb_screen_t *screen) {
xcb_cursor_t cursor = xcb_generate_id(conn);
xcb_pixmap_t pixmap = xcb_generate_id(conn);
xcb_create_pixmap_checked(conn, 1, pixmap, screen->root, 1, 1);
xcb_create_cursor(conn, cursor, pixmap, pixmap, 0, 0, 0, 0, 0, 0, 0, 0);
return cursor;
}
void createBlankCursor() {
cursor = xcb_generate_id(connection);
xcb_pixmap_t pix = xcb_generate_id(connection);
xcb_create_pixmap(connection, 1, pix, screen->root, 1, 1);
xcb_create_cursor(connection, cursor, pix, pix, 0, 0, 0, 0, 0, 0, 1, 1);
}
static void
towel_window_hide_cursor(towel_window_t *win)
{
xcb_cursor_t cur = xcb_generate_id (win->conn);
xcb_pixmap_t pix = xcb_generate_id (win->conn);
xcb_create_pixmap(win->conn, 1, pix, win->screen->root, 1, 1);
xcb_create_cursor(win->conn, cur, pix, pix, 0, 0, 0, 0, 0, 0, 0, 0);
xcb_change_window_attributes(win->conn, win->id,
XCB_CW_CURSOR, &(uint32_t){cur});
xcb_free_pixmap(win->conn, pix);
}
internal void
load_and_set_cursor(hhxcb_context *context)
{
context->cursor_pixmap_id = xcb_generate_id(context->connection);
xcb_create_pixmap(context->connection, /*depth*/ 1,
context->cursor_pixmap_id, context->window, /*width*/ 1,
/*height*/ 1);
context->cursor_id = xcb_generate_id(context->connection);
xcb_create_cursor(context->connection, context->cursor_id,
context->cursor_pixmap_id, context->cursor_pixmap_id, 0, 0, 0, 0,
0, 0, 0, 0);
uint32_t values[1] = { context->cursor_id };
xcb_change_window_attributes( context->connection, context->window,
XCB_CW_CURSOR, values);
}
xcb_cursor_t QXcbCursor::createBitmapCursor(QCursor *cursor)
{
xcb_connection_t *conn = xcb_connection();
QPoint spot = cursor->hotSpot();
xcb_cursor_t c = XCB_NONE;
if (cursor->pixmap().depth() > 1)
c = qt_xcb_createCursorXRender(m_screen, cursor->pixmap().toImage(), spot);
if (!c) {
xcb_pixmap_t cp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->bitmap()->toImage());
xcb_pixmap_t mp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->mask()->toImage());
c = xcb_generate_id(conn);
xcb_create_cursor(conn, c, cp, mp, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF,
spot.x(), spot.y());
xcb_free_pixmap(conn, cp);
xcb_free_pixmap(conn, mp);
}
return c;
}
xcb_cursor_t create_cursor(xcb_connection_t *conn, xcb_screen_t *screen, xcb_window_t win, int choice) {
xcb_pixmap_t bitmap;
xcb_pixmap_t mask;
xcb_cursor_t cursor;
unsigned char *curs_bits;
unsigned char *mask_bits;
int curs_w, curs_h;
switch (choice) {
case CURS_NONE:
curs_bits = curs_invisible_bits;
mask_bits = curs_invisible_bits;
curs_w = curs_invisible_width;
curs_h = curs_invisible_height;
break;
case CURS_WIN:
curs_bits = curs_windows_bits;
mask_bits = mask_windows_bits;
curs_w = curs_windows_width;
curs_h = curs_windows_height;
break;
case CURS_DEFAULT:
default:
return XCB_NONE; /* XCB_NONE is xcb's way of saying "don't change the cursor" */
}
bitmap = xcb_create_pixmap_from_bitmap_data(conn,
win,
curs_bits,
curs_w,
curs_h,
1,
screen->white_pixel,
screen->black_pixel,
NULL);
mask = xcb_create_pixmap_from_bitmap_data(conn,
win,
mask_bits,
curs_w,
curs_h,
1,
screen->white_pixel,
screen->black_pixel,
NULL);
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn,
cursor,
bitmap,
mask,
65535, 65535, 65535,
0, 0, 0,
0, 0);
xcb_free_pixmap(conn, bitmap);
xcb_free_pixmap(conn, mask);
return cursor;
}
xcb_cursor_t QXcbCursor::createNonStandardCursor(int cshape)
{
xcb_cursor_t cursor = 0;
xcb_connection_t *conn = xcb_connection();
if (cshape == Qt::BlankCursor) {
xcb_pixmap_t cp = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), cur_blank_bits, 16, 16,
1, 0, 0, 0);
xcb_pixmap_t mp = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), cur_blank_bits, 16, 16,
1, 0, 0, 0);
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, cp, mp, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8);
} else if (cshape >= Qt::SizeVerCursor && cshape < Qt::SizeAllCursor) {
int i = (cshape - Qt::SizeVerCursor) * 2;
xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits16[i]),
16, 16, 1, 0, 0, 0);
xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits16[i + 1]),
16, 16, 1, 0, 0, 0);
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8);
} else if ((cshape >= Qt::SplitVCursor && cshape <= Qt::SplitHCursor)
|| cshape == Qt::WhatsThisCursor || cshape == Qt::BusyCursor) {
int i = (cshape - Qt::SplitVCursor) * 2;
xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits32[i]),
32, 32, 1, 0, 0, 0);
xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits32[i + 1]),
32, 32, 1, 0, 0, 0);
int hs = (cshape == Qt::PointingHandCursor || cshape == Qt::WhatsThisCursor
|| cshape == Qt::BusyCursor) ? 0 : 16;
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, hs, hs);
} else if (cshape == Qt::ForbiddenCursor) {
int i = (cshape - Qt::ForbiddenCursor) * 2;
xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits20[i]),
20, 20, 1, 0, 0, 0);
xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(cursor_bits20[i + 1]),
20, 20, 1, 0, 0, 0);
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 10, 10);
} else if (cshape == Qt::OpenHandCursor || cshape == Qt::ClosedHandCursor) {
bool open = cshape == Qt::OpenHandCursor;
xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(open ? openhand_bits : closedhand_bits),
16, 16, 1, 0, 0, 0);
xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(),
const_cast<uint8_t*>(open ? openhandm_bits : closedhandm_bits),
16, 16, 1, 0, 0, 0);
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8);
} else if (cshape == Qt::DragCopyCursor || cshape == Qt::DragMoveCursor
|| cshape == Qt::DragLinkCursor) {
QImage image = QGuiApplicationPrivate::instance()->getPixmapCursor(static_cast<Qt::CursorShape>(cshape)).toImage();
if (!image.isNull()) {
xcb_pixmap_t pm = qt_xcb_XPixmapFromBitmap(m_screen, image);
xcb_pixmap_t pmm = qt_xcb_XPixmapFromBitmap(m_screen, image.createAlphaMask());
cursor = xcb_generate_id(conn);
xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8);
xcb_free_pixmap(conn, pm);
xcb_free_pixmap(conn, pmm);
}
}
return cursor;
}
//Output
X11Output::X11Output(X11Backend& backend, unsigned int id, const nytl::Vec2i& pos,
const nytl::Vec2ui& size) : Output(backend.compositor(), id, pos, size), backend_(&backend)
{
xcb_connection_t* connection = backend.xConnection();
xcb_screen_t* screen = backend.xScreen();
unsigned int mask = XCB_CW_EVENT_MASK;
unsigned int values = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_KEY_PRESS |
XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_FOCUS_CHANGE;
xWindow_ = xcb_generate_id(connection);
xcb_create_window(connection, XCB_COPY_FROM_PARENT, xWindow_, screen->root, 0, 0, size_.x,
size_.y ,10, XCB_WINDOW_CLASS_INPUT_OUTPUT, screen->root_visual, mask, &values);
if(!xWindow_)
{
throw std::runtime_error("could not create xcb window");
return;
}
xcb_change_property(connection, XCB_PROP_MODE_REPLACE, xWindow_, atoms::protocols,
XCB_ATOM_ATOM, 32, 1, &atoms::deleteWindow);
//cant be resized
xcb_size_hints_t sizeHints;
sizeHints.max_width = size_.x;
sizeHints.max_height = size_.y;
sizeHints.min_width = size_.x;
sizeHints.min_height = size_.y;
sizeHints.flags = XCB_ICCCM_SIZE_HINT_P_MIN_SIZE | XCB_ICCCM_SIZE_HINT_P_MAX_SIZE;
xcb_icccm_set_wm_size_hints(connection, xWindow_, XCB_ATOM_WM_NORMAL_HINTS, &sizeHints);
//no mouse cursor
xcb_pixmap_t cursorPixmap = xcb_generate_id(connection);
xcb_create_pixmap(connection, 1, cursorPixmap, xWindow_, 1, 1);
xcb_cursor_t hiddenCursor = xcb_generate_id(connection);
xcb_create_cursor(connection, hiddenCursor, cursorPixmap, cursorPixmap,
0, 0, 0, 0, 0, 0, 0, 0);
xcb_free_pixmap(connection, cursorPixmap);
xcb_change_window_attributes(connection, xWindow_, XCB_CW_CURSOR, &hiddenCursor);
xcb_map_window(connection, xWindow_);
//EGL
if(!backend.eglContext())
{
throw std::runtime_error("x11Output::x11Output: backend ha no valid eglcontext");
return;
}
eglSurface_ = backend.eglContext()->createSurface(xWindow_);
if(!eglSurface_)
{
throw std::runtime_error("x11Output::x11Output: failed to create egl surface");
return;
}
drawContext_ = std::make_unique<ny::GlDrawContext>();
if(!drawContext_)
{
throw std::runtime_error("x11Output::x11Output: failed to create ny::GlesDC");
return;
}
}
static void
get_resources (el_backend_x11_t self)
{
#define F(field) offsetof(struct el_backend_x11, field)
static const struct {
const char* name;
int offset;
} atoms[] = {
{ "WM_PROTOCOLS", F(atom.wm_protocols) },
{ "WM_NORMAL_HINTS", F(atom.wm_normal_hints) },
{ "WM_SIZE_HINTS", F(atom.wm_size_hints) },
{ "WM_DELETE_WINDOW", F(atom.wm_delete_window) },
{ "WM_CLASS", F(atom.wm_class) },
{ "_NET_WM_NAME", F(atom.net_wm_name) },
{ "_NET_WM_ICON", F(atom.net_wm_icon) },
{ "_NET_WM_STATE", F(atom.net_wm_state) },
{ "_NET_WM_STATE_FULLSCREEN", F(atom.net_wm_state_fullscreen) },
{ "_NET_SUPPORTING_WM_CHECK", F(atom.net_supporting_wm_check) },
{ "_NET_SUPPORTED", F(atom.net_supported) },
{ "_XKB_RULES_NAMES", F(atom.xkb_names) },
{ "STRING", F(atom.string) },
{ "UTF8_STRING", F(atom.utf8_string) },
{ "CARDINAL", F(atom.cardinal) },
};
#undef F
uint8_t data[] = { 0, 0, 0, 0 };
xcb_intern_atom_cookie_t cookies[lengthof(atoms)];
for (size_t i = 0; i < lengthof(atoms); i++) {
cookies[i] = xcb_intern_atom(self->connection, 0,
strlen(atoms[i].name), atoms[i].name);
}
for (size_t i = 0; i < lengthof(atoms); i++) {
xcb_intern_atom_reply_t* reply = xcb_intern_atom_reply(self->connection,
cookies[i], NULL);
*(xcb_atom_t*) ((char*) self + atoms[i].offset) = reply->atom;
free(reply);
}
xcb_pixmap_t pixmap = xcb_generate_id(self->connection);
xcb_gc_t gc = xcb_generate_id(self->connection);
xcb_create_pixmap(self->connection, 1, pixmap, self->screen->root, 1, 1);
xcb_create_gc(self->connection, gc, pixmap, 0, NULL);
xcb_put_image(self->connection, XCB_IMAGE_FORMAT_XY_PIXMAP,
pixmap, gc, 1, 1, 0, 0, 0, 32, sizeof(data), data);
self->cursor = xcb_generate_id(self->connection);
xcb_create_cursor(self->connection, self->cursor, pixmap, pixmap,
0, 0, 0, 0, 0, 0, 1, 1);
xcb_free_gc(self->connection, gc);
xcb_free_pixmap(self->connection, pixmap);
}