mirror of
https://github.com/hyprwm/wlroots-hyprland.git
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Merge pull request #786 from emersion/x11-backend-multiple-outputs
backend/x11: add support for multiple outputs
This commit is contained in:
Drew DeVault
GitHub
commit
96c6091f80
8 changed files with 484 additions and 297 deletions
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@ -61,26 +61,48 @@ struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend) {
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return NULL;
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}
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static size_t parse_outputs_env(const char *name) {
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const char *outputs_str = getenv(name);
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if (outputs_str == NULL) {
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return 1;
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}
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char *end;
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int outputs = (int)strtol(outputs_str, &end, 10);
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if (*end || outputs < 0) {
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wlr_log(L_ERROR, "%s specified with invalid integer, ignoring", name);
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return 1;
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}
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return outputs;
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}
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static struct wlr_backend *attempt_wl_backend(struct wl_display *display) {
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struct wlr_backend *backend = wlr_wl_backend_create(display, NULL);
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if (backend) {
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int outputs = 1;
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const char *_outputs = getenv("WLR_WL_OUTPUTS");
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if (_outputs) {
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char *end;
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outputs = (int)strtol(_outputs, &end, 10);
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if (*end) {
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wlr_log(L_ERROR, "WLR_WL_OUTPUTS specified with invalid integer, ignoring");
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outputs = 1;
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} else if (outputs < 0) {
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wlr_log(L_ERROR, "WLR_WL_OUTPUTS specified with negative outputs, ignoring");
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outputs = 1;
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}
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}
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while (outputs--) {
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wlr_wl_output_create(backend);
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}
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if (backend == NULL) {
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return NULL;
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}
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size_t outputs = parse_outputs_env("WLR_WL_OUTPUTS");
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for (size_t i = 0; i < outputs; ++i) {
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wlr_wl_output_create(backend);
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}
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return backend;
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}
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static struct wlr_backend *attempt_x11_backend(struct wl_display *display,
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const char *x11_display) {
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struct wlr_backend *backend = wlr_x11_backend_create(display, x11_display);
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if (backend == NULL) {
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return NULL;
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}
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size_t outputs = parse_outputs_env("WLR_X11_OUTPUTS");
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for (size_t i = 0; i < outputs; ++i) {
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wlr_x11_output_create(backend);
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}
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return backend;
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}
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@ -91,7 +113,8 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
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return NULL;
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}
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if (getenv("WAYLAND_DISPLAY") || getenv("_WAYLAND_DISPLAY")) {
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if (getenv("WAYLAND_DISPLAY") || getenv("_WAYLAND_DISPLAY") ||
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getenv("WAYLAND_SOCKET")) {
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struct wlr_backend *wl_backend = attempt_wl_backend(display);
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if (wl_backend) {
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wlr_multi_backend_add(backend, wl_backend);
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@ -103,9 +126,11 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
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const char *x11_display = getenv("DISPLAY");
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if (x11_display) {
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struct wlr_backend *x11_backend =
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wlr_x11_backend_create(display, x11_display);
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wlr_multi_backend_add(backend, x11_backend);
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return backend;
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attempt_x11_backend(display, x11_display);
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if (x11_backend) {
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wlr_multi_backend_add(backend, x11_backend);
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return backend;
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}
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}
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#endif
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@ -50,7 +50,11 @@ if conf_data.get('WLR_HAS_SYSTEMD', false)
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endif
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if conf_data.get('WLR_HAS_X11_BACKEND', false)
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backend_files += files('x11/backend.c')
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backend_files += files(
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'x11/backend.c',
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'x11/input_device.c',
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'x11/output.c',
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)
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backend_deps += xcb_xkb
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endif
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@ -60,37 +60,28 @@ static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
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struct wlr_output *wlr_output = &wlr_wl_pointer->current_output->wlr_output;
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int width, height;
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wl_egl_window_get_attached_size(wlr_wl_pointer->current_output->egl_window,
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&width, &height);
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int owidth, oheight;
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wlr_output_effective_resolution(wlr_output, &owidth, &oheight);
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struct wlr_box box = {
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.x = wl_fixed_to_int(surface_x),
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.y = wl_fixed_to_int(surface_y),
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};
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struct wlr_box transformed;
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wlr_box_transform(&box, wlr_output->transform, width, height, &transformed);
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transformed.x /= wlr_output->scale;
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transformed.y /= wlr_output->scale;
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wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
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wlr_output->height, &box);
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box.x /= wlr_output->scale;
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box.y /= wlr_output->scale;
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struct wlr_box layout_box;
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wlr_wl_output_layout_get_box(wlr_wl_pointer->current_output->backend,
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&layout_box);
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struct wlr_event_pointer_motion_absolute wlr_event;
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wlr_event.device = dev;
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wlr_event.time_msec = time;
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double tx = transformed.x / (double)owidth;
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double ty = transformed.y / (double)oheight;
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double ox = wlr_output->lx / (double)layout_box.width;
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double oy = wlr_output->ly / (double)layout_box.height;
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wlr_event.x = tx * ((double)owidth / layout_box.width) + ox;
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wlr_event.y = ty * ((double)oheight / layout_box.height) + oy;
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struct wlr_event_pointer_motion_absolute wlr_event = {
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.device = dev,
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.time_msec = time,
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.x = box.x / (double)layout_box.width + ox,
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.y = box.y / (double)layout_box.height + oy,
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};
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wlr_signal_emit_safe(&dev->pointer->events.motion_absolute, &wlr_event);
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}
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@ -1,5 +1,5 @@
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#define _POSIX_C_SOURCE 200112L
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#include <EGL/egl.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -10,162 +10,98 @@
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#include <wlr/config.h>
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#include <wlr/interfaces/wlr_input_device.h>
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#include <wlr/interfaces/wlr_keyboard.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/interfaces/wlr_pointer.h>
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#include <wlr/render/egl.h>
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#include <wlr/render/gles2.h>
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#include <wlr/util/log.h>
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#include <X11/Xlib-xcb.h>
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#include <xcb/xcb.h>
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#ifdef __linux__
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#include <linux/input-event-codes.h>
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#elif __FreeBSD__
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#include <dev/evdev/input-event-codes.h>
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#endif
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#ifdef WLR_HAS_XCB_XKB
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#include <xcb/xkb.h>
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#endif
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#include "backend/x11.h"
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#include "util/signal.h"
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#define XCB_EVENT_RESPONSE_TYPE_MASK 0x7f
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static const struct wlr_backend_impl backend_impl;
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static const struct wlr_output_impl output_impl;
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static const struct wlr_input_device_impl input_device_impl = { 0 };
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static uint32_t xcb_button_to_wl(uint32_t button) {
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switch (button) {
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case XCB_BUTTON_INDEX_1: return BTN_LEFT;
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case XCB_BUTTON_INDEX_2: return BTN_MIDDLE;
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case XCB_BUTTON_INDEX_3: return BTN_RIGHT;
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// XXX: I'm not sure the scroll-wheel direction is right
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case XCB_BUTTON_INDEX_4: return BTN_GEAR_UP;
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case XCB_BUTTON_INDEX_5: return BTN_GEAR_DOWN;
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default: return 0;
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struct wlr_x11_output *x11_output_from_window_id(struct wlr_x11_backend *x11,
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xcb_window_t window) {
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struct wlr_x11_output *output;
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wl_list_for_each(output, &x11->outputs, link) {
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if (output->win == window) {
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return output;
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}
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}
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return NULL;
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}
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static bool handle_x11_event(struct wlr_x11_backend *x11, xcb_generic_event_t *event) {
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struct wlr_x11_output *output = &x11->output;
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void x11_output_layout_get_box(struct wlr_x11_backend *backend,
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struct wlr_box *box) {
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int min_x = INT_MAX, min_y = INT_MAX;
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int max_x = INT_MIN, max_y = INT_MIN;
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struct wlr_x11_output *output;
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wl_list_for_each(output, &backend->outputs, link) {
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struct wlr_output *wlr_output = &output->wlr_output;
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int width, height;
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wlr_output_effective_resolution(wlr_output, &width, &height);
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if (wlr_output->lx < min_x) {
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min_x = wlr_output->lx;
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}
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if (wlr_output->ly < min_y) {
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min_y = wlr_output->ly;
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}
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if (wlr_output->lx + width > max_x) {
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max_x = wlr_output->lx + width;
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}
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if (wlr_output->ly + height > max_y) {
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max_y = wlr_output->ly + height;
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}
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}
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box->x = min_x;
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box->y = min_y;
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box->width = max_x - min_x;
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box->height = max_y - min_y;
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}
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static bool handle_x11_event(struct wlr_x11_backend *x11,
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xcb_generic_event_t *event) {
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if (x11_handle_input_event(x11, event)) {
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return false;
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}
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switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
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case XCB_EXPOSE: {
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wlr_output_send_frame(&output->wlr_output);
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break;
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}
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case XCB_KEY_PRESS:
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case XCB_KEY_RELEASE: {
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xcb_key_press_event_t *ev = (xcb_key_press_event_t *)event;
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struct wlr_event_keyboard_key key = {
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.time_msec = ev->time,
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.keycode = ev->detail - 8,
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.state = event->response_type == XCB_KEY_PRESS ?
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WLR_KEY_PRESSED : WLR_KEY_RELEASED,
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.update_state = true,
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};
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// TODO use xcb-xkb for more precise modifiers state?
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wlr_keyboard_notify_key(&x11->keyboard, &key);
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x11->time = ev->time;
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break;
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}
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case XCB_BUTTON_PRESS: {
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xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
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if (ev->detail == XCB_BUTTON_INDEX_4 ||
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ev->detail == XCB_BUTTON_INDEX_5) {
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double delta = (ev->detail == XCB_BUTTON_INDEX_4 ? -15 : 15);
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struct wlr_event_pointer_axis axis = {
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.device = &x11->pointer_dev,
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.time_msec = ev->time,
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.source = WLR_AXIS_SOURCE_WHEEL,
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.orientation = WLR_AXIS_ORIENTATION_VERTICAL,
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.delta = delta,
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};
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wlr_signal_emit_safe(&x11->pointer.events.axis, &axis);
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x11->time = ev->time;
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break;
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xcb_expose_event_t *ev = (xcb_expose_event_t *)event;
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struct wlr_x11_output *output =
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x11_output_from_window_id(x11, ev->window);
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if (output != NULL) {
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wlr_output_send_frame(&output->wlr_output);
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}
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}
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/* fallthrough */
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case XCB_BUTTON_RELEASE: {
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xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
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if (ev->detail != XCB_BUTTON_INDEX_4 &&
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ev->detail != XCB_BUTTON_INDEX_5) {
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struct wlr_event_pointer_button button = {
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.device = &x11->pointer_dev,
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.time_msec = ev->time,
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.button = xcb_button_to_wl(ev->detail),
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.state = event->response_type == XCB_BUTTON_PRESS ?
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WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED,
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};
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wlr_signal_emit_safe(&x11->pointer.events.button, &button);
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}
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x11->time = ev->time;
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break;
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}
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case XCB_MOTION_NOTIFY: {
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xcb_motion_notify_event_t *ev = (xcb_motion_notify_event_t *)event;
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struct wlr_event_pointer_motion_absolute abs = {
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.device = &x11->pointer_dev,
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.time_msec = ev->time,
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.x = (double)ev->event_x / output->wlr_output.width,
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.y = (double)ev->event_y / output->wlr_output.height,
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};
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wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &abs);
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x11->time = ev->time;
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break;
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}
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case XCB_CONFIGURE_NOTIFY: {
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xcb_configure_notify_event_t *ev = (xcb_configure_notify_event_t *)event;
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wlr_output_update_custom_mode(&output->wlr_output, ev->width,
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ev->height, 0);
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// Move the pointer to its new location
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xcb_query_pointer_cookie_t cookie =
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xcb_query_pointer(x11->xcb_conn, output->win);
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xcb_query_pointer_reply_t *pointer =
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xcb_query_pointer_reply(x11->xcb_conn, cookie, NULL);
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if (!pointer) {
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break;
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xcb_configure_notify_event_t *ev =
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(xcb_configure_notify_event_t *)event;
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struct wlr_x11_output *output =
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x11_output_from_window_id(x11, ev->window);
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if (output != NULL) {
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x11_output_handle_configure_notify(output, ev);
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}
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struct wlr_event_pointer_motion_absolute abs = {
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.device = &x11->pointer_dev,
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.time_msec = x11->time,
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.x = (double)pointer->root_x / output->wlr_output.width,
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.y = (double)pointer->root_y / output->wlr_output.height,
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};
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wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &abs);
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free(pointer);
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break;
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}
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case XCB_CLIENT_MESSAGE: {
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xcb_client_message_event_t *ev = (xcb_client_message_event_t *)event;
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if (ev->data.data32[0] == x11->atoms.wm_delete_window) {
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wl_display_terminate(x11->wl_display);
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return true;
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struct wlr_x11_output *output =
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x11_output_from_window_id(x11, ev->window);
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if (output != NULL) {
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wlr_output_destroy(&output->wlr_output);
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}
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}
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break;
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}
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default:
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#ifdef WLR_HAS_XCB_XKB
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if (x11->xkb_supported && event->response_type == x11->xkb_base_event) {
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xcb_xkb_state_notify_event_t *ev =
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(xcb_xkb_state_notify_event_t *)event;
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wlr_keyboard_notify_modifiers(&x11->keyboard, ev->baseMods,
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ev->latchedMods, ev->lockedMods, ev->lockedGroup);
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}
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#endif
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break;
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}
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return false;
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@ -180,64 +116,20 @@ static int x11_event(int fd, uint32_t mask, void *data) {
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}
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xcb_generic_event_t *e;
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bool quit = false;
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while (!quit && (e = xcb_poll_for_event(x11->xcb_conn))) {
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quit = handle_x11_event(x11, e);
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while ((e = xcb_poll_for_event(x11->xcb_conn))) {
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bool quit = handle_x11_event(x11, e);
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free(e);
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if (quit) {
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break;
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}
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}
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return 0;
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}
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static int signal_frame(void *data) {
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struct wlr_x11_backend *x11 = data;
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wlr_output_send_frame(&x11->output.wlr_output);
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wl_event_source_timer_update(x11->frame_timer, 16);
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return 0;
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}
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static void parse_xcb_setup(struct wlr_output *output, xcb_connection_t *xcb_conn) {
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const xcb_setup_t *xcb_setup = xcb_get_setup(xcb_conn);
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snprintf(output->make, sizeof(output->make), "%.*s",
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xcb_setup_vendor_length(xcb_setup),
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xcb_setup_vendor(xcb_setup));
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snprintf(output->model, sizeof(output->model), "%"PRIu16".%"PRIu16,
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xcb_setup->protocol_major_version,
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xcb_setup->protocol_minor_version);
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}
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static bool wlr_x11_backend_start(struct wlr_backend *backend) {
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struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
|
||||
struct wlr_x11_output *output = &x11->output;
|
||||
|
||||
uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
|
||||
uint32_t values[2] = {
|
||||
x11->screen->white_pixel,
|
||||
XCB_EVENT_MASK_EXPOSURE |
|
||||
XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
|
||||
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
|
||||
XCB_EVENT_MASK_POINTER_MOTION |
|
||||
XCB_EVENT_MASK_STRUCTURE_NOTIFY
|
||||
};
|
||||
|
||||
output->x11 = x11;
|
||||
|
||||
wlr_output_init(&output->wlr_output, &x11->backend, &output_impl,
|
||||
x11->wl_display);
|
||||
snprintf(output->wlr_output.name, sizeof(output->wlr_output.name), "X11-1");
|
||||
parse_xcb_setup(&output->wlr_output, x11->xcb_conn);
|
||||
|
||||
output->win = xcb_generate_id(x11->xcb_conn);
|
||||
xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, output->win,
|
||||
x11->screen->root, 0, 0, 1024, 768, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||||
x11->screen->root_visual, mask, values);
|
||||
|
||||
output->surf = wlr_egl_create_surface(&x11->egl, &output->win);
|
||||
if (!output->surf) {
|
||||
wlr_log(L_ERROR, "Failed to create EGL surface");
|
||||
return false;
|
||||
}
|
||||
x11->started = true;
|
||||
|
||||
struct {
|
||||
const char *name;
|
||||
|
|
@ -279,17 +171,6 @@ static bool wlr_x11_backend_start(struct wlr_backend *backend) {
|
|||
}
|
||||
}
|
||||
|
||||
xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
|
||||
x11->atoms.wm_protocols, XCB_ATOM_ATOM, 32, 1,
|
||||
&x11->atoms.wm_delete_window);
|
||||
|
||||
char title[32];
|
||||
if (snprintf(title, sizeof(title), "wlroots - %s", output->wlr_output.name)) {
|
||||
xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
|
||||
x11->atoms.net_wm_name, x11->atoms.utf8_string, 8,
|
||||
strlen(title), title);
|
||||
}
|
||||
|
||||
#ifdef WLR_HAS_XCB_XKB
|
||||
const xcb_query_extension_reply_t *reply =
|
||||
xcb_get_extension_data(x11->xcb_conn, &xcb_xkb_id);
|
||||
|
|
@ -316,15 +197,12 @@ static bool wlr_x11_backend_start(struct wlr_backend *backend) {
|
|||
}
|
||||
#endif
|
||||
|
||||
xcb_map_window(x11->xcb_conn, output->win);
|
||||
xcb_flush(x11->xcb_conn);
|
||||
wlr_output_update_enabled(&output->wlr_output, true);
|
||||
|
||||
wlr_signal_emit_safe(&x11->backend.events.new_output, output);
|
||||
wlr_signal_emit_safe(&x11->backend.events.new_input, &x11->keyboard_dev);
|
||||
wlr_signal_emit_safe(&x11->backend.events.new_input, &x11->pointer_dev);
|
||||
|
||||
wl_event_source_timer_update(x11->frame_timer, 16);
|
||||
for (size_t i = 0; i < x11->requested_outputs; ++i) {
|
||||
wlr_x11_output_create(&x11->backend);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -336,8 +214,10 @@ static void wlr_x11_backend_destroy(struct wlr_backend *backend) {
|
|||
|
||||
struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
|
||||
|
||||
struct wlr_x11_output *output = &x11->output;
|
||||
wlr_output_destroy(&output->wlr_output);
|
||||
struct wlr_x11_output *output, *tmp;
|
||||
wl_list_for_each_safe(output, tmp, &x11->outputs, link) {
|
||||
wlr_output_destroy(&output->wlr_output);
|
||||
}
|
||||
|
||||
wlr_signal_emit_safe(&x11->pointer_dev.events.destroy, &x11->pointer_dev);
|
||||
wlr_signal_emit_safe(&x11->keyboard_dev.events.destroy, &x11->keyboard_dev);
|
||||
|
|
@ -357,7 +237,6 @@ static void wlr_x11_backend_destroy(struct wlr_backend *backend) {
|
|||
}
|
||||
wl_list_remove(&x11->display_destroy.link);
|
||||
|
||||
wl_event_source_remove(x11->frame_timer);
|
||||
wlr_egl_finish(&x11->egl);
|
||||
|
||||
if (x11->xlib_conn) {
|
||||
|
|
@ -403,6 +282,7 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
|||
|
||||
wlr_backend_init(&x11->backend, &backend_impl);
|
||||
x11->wl_display = display;
|
||||
wl_list_init(&x11->outputs);
|
||||
|
||||
x11->xlib_conn = XOpenDisplay(x11_display);
|
||||
if (!x11->xlib_conn) {
|
||||
|
|
@ -427,8 +307,6 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
|||
goto error_x11;
|
||||
}
|
||||
|
||||
x11->frame_timer = wl_event_loop_add_timer(ev, signal_frame, x11);
|
||||
|
||||
x11->screen = xcb_setup_roots_iterator(xcb_get_setup(x11->xcb_conn)).data;
|
||||
|
||||
if (!wlr_egl_init(&x11->egl, EGL_PLATFORM_X11_KHR, x11->xlib_conn, NULL,
|
||||
|
|
@ -439,6 +317,7 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
|||
x11->renderer = wlr_gles2_renderer_create(&x11->backend);
|
||||
if (x11->renderer == NULL) {
|
||||
wlr_log(L_ERROR, "Failed to create renderer");
|
||||
goto error_egl;
|
||||
}
|
||||
|
||||
wlr_input_device_init(&x11->keyboard_dev, WLR_INPUT_DEVICE_KEYBOARD,
|
||||
|
|
@ -456,6 +335,8 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
|||
|
||||
return &x11->backend;
|
||||
|
||||
error_egl:
|
||||
wlr_egl_finish(&x11->egl);
|
||||
error_event:
|
||||
wl_event_source_remove(x11->event_source);
|
||||
error_x11:
|
||||
|
|
@ -463,59 +344,3 @@ error_x11:
|
|||
free(x11);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static bool output_set_custom_mode(struct wlr_output *wlr_output, int32_t width,
|
||||
int32_t height, int32_t refresh) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
const uint32_t values[] = { width, height };
|
||||
xcb_configure_window(x11->xcb_conn, output->win,
|
||||
XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values);
|
||||
return true;
|
||||
}
|
||||
|
||||
static void output_transform(struct wlr_output *wlr_output, enum wl_output_transform transform) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
output->wlr_output.transform = transform;
|
||||
}
|
||||
|
||||
static void output_destroy(struct wlr_output *wlr_output) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
eglDestroySurface(x11->egl.display, output->surf);
|
||||
xcb_destroy_window(x11->xcb_conn, output->win);
|
||||
// output has been allocated on the stack, do not free it
|
||||
}
|
||||
|
||||
static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
return wlr_egl_make_current(&x11->egl, output->surf, buffer_age);
|
||||
}
|
||||
|
||||
static bool output_swap_buffers(struct wlr_output *wlr_output,
|
||||
pixman_region32_t *damage) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
return wlr_egl_swap_buffers(&x11->egl, output->surf, damage);
|
||||
}
|
||||
|
||||
static const struct wlr_output_impl output_impl = {
|
||||
.set_custom_mode = output_set_custom_mode,
|
||||
.transform = output_transform,
|
||||
.destroy = output_destroy,
|
||||
.make_current = output_make_current,
|
||||
.swap_buffers = output_swap_buffers,
|
||||
};
|
||||
|
||||
bool wlr_output_is_x11(struct wlr_output *wlr_output) {
|
||||
return wlr_output->impl == &output_impl;
|
||||
}
|
||||
|
||||
bool wlr_input_device_is_x11(struct wlr_input_device *wlr_dev) {
|
||||
return wlr_dev->impl == &input_device_impl;
|
||||
}
|
||||
|
|
|
|||
136
backend/x11/input_device.c
Normal file
136
backend/x11/input_device.c
Normal file
|
|
@ -0,0 +1,136 @@
|
|||
#include <wlr/interfaces/wlr_input_device.h>
|
||||
#include <wlr/interfaces/wlr_keyboard.h>
|
||||
#include <wlr/interfaces/wlr_pointer.h>
|
||||
#include <wlr/util/log.h>
|
||||
#include <xcb/xcb.h>
|
||||
#ifdef __linux__
|
||||
#include <linux/input-event-codes.h>
|
||||
#elif __FreeBSD__
|
||||
#include <dev/evdev/input-event-codes.h>
|
||||
#endif
|
||||
#include "backend/x11.h"
|
||||
#include "util/signal.h"
|
||||
|
||||
static uint32_t xcb_button_to_wl(uint32_t button) {
|
||||
switch (button) {
|
||||
case XCB_BUTTON_INDEX_1: return BTN_LEFT;
|
||||
case XCB_BUTTON_INDEX_2: return BTN_MIDDLE;
|
||||
case XCB_BUTTON_INDEX_3: return BTN_RIGHT;
|
||||
// XXX: I'm not sure the scroll-wheel direction is right
|
||||
case XCB_BUTTON_INDEX_4: return BTN_GEAR_UP;
|
||||
case XCB_BUTTON_INDEX_5: return BTN_GEAR_DOWN;
|
||||
default: return 0;
|
||||
}
|
||||
}
|
||||
|
||||
bool x11_handle_input_event(struct wlr_x11_backend *x11,
|
||||
xcb_generic_event_t *event) {
|
||||
switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
|
||||
case XCB_KEY_PRESS:
|
||||
case XCB_KEY_RELEASE: {
|
||||
xcb_key_press_event_t *ev = (xcb_key_press_event_t *)event;
|
||||
struct wlr_event_keyboard_key key = {
|
||||
.time_msec = ev->time,
|
||||
.keycode = ev->detail - 8,
|
||||
.state = event->response_type == XCB_KEY_PRESS ?
|
||||
WLR_KEY_PRESSED : WLR_KEY_RELEASED,
|
||||
.update_state = true,
|
||||
};
|
||||
|
||||
// TODO use xcb-xkb for more precise modifiers state?
|
||||
wlr_keyboard_notify_key(&x11->keyboard, &key);
|
||||
x11->time = ev->time;
|
||||
return true;
|
||||
}
|
||||
case XCB_BUTTON_PRESS: {
|
||||
xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
|
||||
|
||||
if (ev->detail == XCB_BUTTON_INDEX_4 ||
|
||||
ev->detail == XCB_BUTTON_INDEX_5) {
|
||||
double delta = (ev->detail == XCB_BUTTON_INDEX_4 ? -15 : 15);
|
||||
struct wlr_event_pointer_axis axis = {
|
||||
.device = &x11->pointer_dev,
|
||||
.time_msec = ev->time,
|
||||
.source = WLR_AXIS_SOURCE_WHEEL,
|
||||
.orientation = WLR_AXIS_ORIENTATION_VERTICAL,
|
||||
.delta = delta,
|
||||
};
|
||||
wlr_signal_emit_safe(&x11->pointer.events.axis, &axis);
|
||||
x11->time = ev->time;
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* fallthrough */
|
||||
case XCB_BUTTON_RELEASE: {
|
||||
xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
|
||||
|
||||
if (ev->detail != XCB_BUTTON_INDEX_4 &&
|
||||
ev->detail != XCB_BUTTON_INDEX_5) {
|
||||
struct wlr_event_pointer_button button = {
|
||||
.device = &x11->pointer_dev,
|
||||
.time_msec = ev->time,
|
||||
.button = xcb_button_to_wl(ev->detail),
|
||||
.state = event->response_type == XCB_BUTTON_PRESS ?
|
||||
WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED,
|
||||
};
|
||||
|
||||
wlr_signal_emit_safe(&x11->pointer.events.button, &button);
|
||||
}
|
||||
x11->time = ev->time;
|
||||
return true;
|
||||
}
|
||||
case XCB_MOTION_NOTIFY: {
|
||||
xcb_motion_notify_event_t *ev = (xcb_motion_notify_event_t *)event;
|
||||
|
||||
struct wlr_x11_output *output =
|
||||
x11_output_from_window_id(x11, ev->event);
|
||||
if (output == NULL) {
|
||||
return false;
|
||||
}
|
||||
struct wlr_output *wlr_output = &output->wlr_output;
|
||||
|
||||
struct wlr_box box = { .x = ev->event_x, .y = ev->event_y };
|
||||
wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
|
||||
wlr_output->height, &box);
|
||||
box.x /= wlr_output->scale;
|
||||
box.y /= wlr_output->scale;
|
||||
|
||||
struct wlr_box layout_box;
|
||||
x11_output_layout_get_box(x11, &layout_box);
|
||||
|
||||
double ox = wlr_output->lx / (double)layout_box.width;
|
||||
double oy = wlr_output->ly / (double)layout_box.height;
|
||||
|
||||
struct wlr_event_pointer_motion_absolute wlr_event = {
|
||||
.device = &x11->pointer_dev,
|
||||
.time_msec = ev->time,
|
||||
.x = box.x / (double)layout_box.width + ox,
|
||||
.y = box.y / (double)layout_box.height + oy,
|
||||
};
|
||||
|
||||
wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &wlr_event);
|
||||
|
||||
x11->time = ev->time;
|
||||
return true;
|
||||
}
|
||||
default:
|
||||
#ifdef WLR_HAS_XCB_XKB
|
||||
if (x11->xkb_supported && event->response_type == x11->xkb_base_event) {
|
||||
xcb_xkb_state_notify_event_t *ev =
|
||||
(xcb_xkb_state_notify_event_t *)event;
|
||||
wlr_keyboard_notify_modifiers(&x11->keyboard, ev->baseMods,
|
||||
ev->latchedMods, ev->lockedMods, ev->lockedGroup);
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
break;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
const struct wlr_input_device_impl input_device_impl = { 0 };
|
||||
|
||||
bool wlr_input_device_is_x11(struct wlr_input_device *wlr_dev) {
|
||||
return wlr_dev->impl == &input_device_impl;
|
||||
}
|
||||
182
backend/x11/output.c
Normal file
182
backend/x11/output.c
Normal file
|
|
@ -0,0 +1,182 @@
|
|||
#include <assert.h>
|
||||
#include <stdlib.h>
|
||||
#include <wlr/interfaces/wlr_output.h>
|
||||
#include <wlr/util/log.h>
|
||||
#include "backend/x11.h"
|
||||
#include "util/signal.h"
|
||||
|
||||
static int signal_frame(void *data) {
|
||||
struct wlr_x11_output *output = data;
|
||||
wlr_output_send_frame(&output->wlr_output);
|
||||
wl_event_source_timer_update(output->frame_timer, output->frame_delay);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void parse_xcb_setup(struct wlr_output *output, xcb_connection_t *xcb_conn) {
|
||||
const xcb_setup_t *xcb_setup = xcb_get_setup(xcb_conn);
|
||||
|
||||
snprintf(output->make, sizeof(output->make), "%.*s",
|
||||
xcb_setup_vendor_length(xcb_setup),
|
||||
xcb_setup_vendor(xcb_setup));
|
||||
snprintf(output->model, sizeof(output->model), "%"PRIu16".%"PRIu16,
|
||||
xcb_setup->protocol_major_version,
|
||||
xcb_setup->protocol_minor_version);
|
||||
}
|
||||
|
||||
static bool output_set_custom_mode(struct wlr_output *wlr_output, int32_t width,
|
||||
int32_t height, int32_t refresh) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
wlr_output_update_custom_mode(&output->wlr_output, wlr_output->width,
|
||||
wlr_output->height, refresh);
|
||||
output->frame_delay = 1000000 / refresh;
|
||||
|
||||
const uint32_t values[] = { width, height };
|
||||
xcb_configure_window(x11->xcb_conn, output->win,
|
||||
XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values);
|
||||
return true;
|
||||
}
|
||||
|
||||
static void output_transform(struct wlr_output *wlr_output,
|
||||
enum wl_output_transform transform) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
output->wlr_output.transform = transform;
|
||||
}
|
||||
|
||||
static void output_destroy(struct wlr_output *wlr_output) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
wl_list_remove(&output->link);
|
||||
wl_event_source_remove(output->frame_timer);
|
||||
eglDestroySurface(x11->egl.display, output->surf);
|
||||
xcb_destroy_window(x11->xcb_conn, output->win);
|
||||
free(output);
|
||||
}
|
||||
|
||||
static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
return wlr_egl_make_current(&x11->egl, output->surf, buffer_age);
|
||||
}
|
||||
|
||||
static bool output_swap_buffers(struct wlr_output *wlr_output,
|
||||
pixman_region32_t *damage) {
|
||||
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
return wlr_egl_swap_buffers(&x11->egl, output->surf, damage);
|
||||
}
|
||||
|
||||
static const struct wlr_output_impl output_impl = {
|
||||
.set_custom_mode = output_set_custom_mode,
|
||||
.transform = output_transform,
|
||||
.destroy = output_destroy,
|
||||
.make_current = output_make_current,
|
||||
.swap_buffers = output_swap_buffers,
|
||||
};
|
||||
|
||||
struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
|
||||
assert(wlr_backend_is_x11(backend));
|
||||
struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
|
||||
|
||||
if (!x11->started) {
|
||||
++x11->requested_outputs;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct wlr_x11_output *output = calloc(1, sizeof(struct wlr_x11_output));
|
||||
if (output == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
output->x11 = x11;
|
||||
|
||||
struct wlr_output *wlr_output = &output->wlr_output;
|
||||
wlr_output_init(wlr_output, &x11->backend, &output_impl, x11->wl_display);
|
||||
|
||||
wlr_output->refresh = 60 * 1000000;
|
||||
output->frame_delay = 16; // 60 Hz
|
||||
|
||||
snprintf(wlr_output->name, sizeof(wlr_output->name), "X11-%d",
|
||||
wl_list_length(&x11->outputs) + 1);
|
||||
parse_xcb_setup(wlr_output, x11->xcb_conn);
|
||||
|
||||
uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
|
||||
uint32_t values[2] = {
|
||||
x11->screen->white_pixel,
|
||||
XCB_EVENT_MASK_EXPOSURE |
|
||||
XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
|
||||
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
|
||||
XCB_EVENT_MASK_POINTER_MOTION |
|
||||
XCB_EVENT_MASK_STRUCTURE_NOTIFY
|
||||
};
|
||||
output->win = xcb_generate_id(x11->xcb_conn);
|
||||
xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, output->win,
|
||||
x11->screen->root, 0, 0, 1024, 768, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||||
x11->screen->root_visual, mask, values);
|
||||
|
||||
output->surf = wlr_egl_create_surface(&x11->egl, &output->win);
|
||||
if (!output->surf) {
|
||||
wlr_log(L_ERROR, "Failed to create EGL surface");
|
||||
free(output);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
|
||||
x11->atoms.wm_protocols, XCB_ATOM_ATOM, 32, 1,
|
||||
&x11->atoms.wm_delete_window);
|
||||
|
||||
char title[32];
|
||||
if (snprintf(title, sizeof(title), "wlroots - %s", wlr_output->name)) {
|
||||
xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
|
||||
x11->atoms.net_wm_name, x11->atoms.utf8_string, 8,
|
||||
strlen(title), title);
|
||||
}
|
||||
|
||||
xcb_map_window(x11->xcb_conn, output->win);
|
||||
xcb_flush(x11->xcb_conn);
|
||||
|
||||
struct wl_event_loop *ev = wl_display_get_event_loop(x11->wl_display);
|
||||
output->frame_timer = wl_event_loop_add_timer(ev, signal_frame, output);
|
||||
|
||||
wl_event_source_timer_update(output->frame_timer, output->frame_delay);
|
||||
wlr_output_update_enabled(wlr_output, true);
|
||||
|
||||
wl_list_insert(&x11->outputs, &output->link);
|
||||
wlr_signal_emit_safe(&x11->backend.events.new_output, wlr_output);
|
||||
|
||||
return wlr_output;
|
||||
}
|
||||
|
||||
void x11_output_handle_configure_notify(struct wlr_x11_output *output,
|
||||
xcb_configure_notify_event_t *ev) {
|
||||
struct wlr_x11_backend *x11 = output->x11;
|
||||
|
||||
wlr_output_update_custom_mode(&output->wlr_output, ev->width,
|
||||
ev->height, output->wlr_output.refresh);
|
||||
|
||||
// Move the pointer to its new location
|
||||
xcb_query_pointer_cookie_t cookie =
|
||||
xcb_query_pointer(x11->xcb_conn, output->win);
|
||||
xcb_query_pointer_reply_t *pointer =
|
||||
xcb_query_pointer_reply(x11->xcb_conn, cookie, NULL);
|
||||
if (!pointer) {
|
||||
return;
|
||||
}
|
||||
|
||||
struct wlr_event_pointer_motion_absolute abs = {
|
||||
.device = &x11->pointer_dev,
|
||||
.time_msec = x11->time,
|
||||
.x = (double)pointer->root_x / output->wlr_output.width,
|
||||
.y = (double)pointer->root_y / output->wlr_output.height,
|
||||
};
|
||||
|
||||
wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &abs);
|
||||
free(pointer);
|
||||
}
|
||||
|
||||
bool wlr_output_is_x11(struct wlr_output *wlr_output) {
|
||||
return wlr_output->impl == &output_impl;
|
||||
}
|
||||
|
|
@ -3,29 +3,40 @@
|
|||
|
||||
#include <stdbool.h>
|
||||
#include <wayland-server.h>
|
||||
#include <wlr/backend/x11.h>
|
||||
#include <wlr/interfaces/wlr_input_device.h>
|
||||
#include <wlr/interfaces/wlr_output.h>
|
||||
#include <wlr/render/egl.h>
|
||||
#include <X11/Xlib-xcb.h>
|
||||
#include <xcb/xcb.h>
|
||||
|
||||
#define XCB_EVENT_RESPONSE_TYPE_MASK 0x7f
|
||||
|
||||
struct wlr_x11_backend;
|
||||
|
||||
struct wlr_x11_output {
|
||||
struct wlr_output wlr_output;
|
||||
struct wlr_x11_backend *x11;
|
||||
struct wl_list link; // wlr_x11_backend::outputs
|
||||
|
||||
xcb_window_t win;
|
||||
EGLSurface surf;
|
||||
|
||||
struct wl_event_source *frame_timer;
|
||||
int frame_delay;
|
||||
};
|
||||
|
||||
struct wlr_x11_backend {
|
||||
struct wlr_backend backend;
|
||||
struct wl_display *wl_display;
|
||||
bool started;
|
||||
|
||||
Display *xlib_conn;
|
||||
xcb_connection_t *xcb_conn;
|
||||
xcb_screen_t *screen;
|
||||
|
||||
struct wlr_x11_output output;
|
||||
size_t requested_outputs;
|
||||
struct wl_list outputs; // wlr_x11_output::link
|
||||
|
||||
struct wlr_keyboard keyboard;
|
||||
struct wlr_input_device keyboard_dev;
|
||||
|
|
@ -36,7 +47,6 @@ struct wlr_x11_backend {
|
|||
struct wlr_egl egl;
|
||||
struct wlr_renderer *renderer;
|
||||
struct wl_event_source *event_source;
|
||||
struct wl_event_source *frame_timer;
|
||||
|
||||
struct {
|
||||
xcb_atom_t wm_protocols;
|
||||
|
|
@ -57,4 +67,17 @@ struct wlr_x11_backend {
|
|||
struct wl_listener display_destroy;
|
||||
};
|
||||
|
||||
struct wlr_x11_output *x11_output_from_window_id(struct wlr_x11_backend *x11,
|
||||
xcb_window_t window);
|
||||
void x11_output_layout_get_box(struct wlr_x11_backend *backend,
|
||||
struct wlr_box *box);
|
||||
|
||||
const struct wlr_input_device_impl input_device_impl;
|
||||
|
||||
bool x11_handle_input_event(struct wlr_x11_backend *x11,
|
||||
xcb_generic_event_t *event);
|
||||
|
||||
void x11_output_handle_configure_notify(struct wlr_x11_output *output,
|
||||
xcb_configure_notify_event_t *event);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@
|
|||
|
||||
struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
||||
const char *x11_display);
|
||||
struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend);
|
||||
|
||||
bool wlr_backend_is_x11(struct wlr_backend *backend);
|
||||
bool wlr_input_device_is_x11(struct wlr_input_device *device);
|
||||
|
|
|
|||
Loading…
Reference in a new issue