13dc708ab7
In seat_handle_capabilities, if input->pointer is not properly initialized, then it will contain an arbitrary value and results in the wl_pointer listener not getting registered if that value is not 0/null. Thus, use calloc to initialize the "input" instance. This fixes https://bugs.freedesktop.org/show_bug.cgi?id=49937 Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
367 lines
9.3 KiB
C
367 lines
9.3 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <assert.h>
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#include <poll.h>
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#include <wayland-client.h>
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#include <GLES2/gl2.h> /* needed for GLfloat */
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#include <linux/input.h>
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struct display {
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struct wl_display *display;
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struct wl_compositor *compositor;
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struct input *input;
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struct output *output;
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};
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struct input {
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struct wl_seat *seat;
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struct wl_pointer *pointer;
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struct wl_keyboard *keyboard;
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GLfloat x, y;
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uint32_t button_mask;
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struct surface *pointer_focus;
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struct surface *keyboard_focus;
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};
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struct output {
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struct wl_output *output;
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int x, y;
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int width, height;
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};
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struct surface {
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struct wl_surface *surface;
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struct output *output;
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};
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static void
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pointer_handle_enter(void *data, struct wl_pointer *pointer,
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uint32_t serial, struct wl_surface *surface,
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wl_fixed_t x, wl_fixed_t y)
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{
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struct input *input = data;
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input->pointer_focus = wl_surface_get_user_data(surface);
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input->x = wl_fixed_to_double(x);
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input->y = wl_fixed_to_double(y);
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}
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static void
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pointer_handle_leave(void *data, struct wl_pointer *pointer,
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uint32_t serial, struct wl_surface *surface)
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{
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struct input *input = data;
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input->pointer_focus = NULL;
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}
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static void
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pointer_handle_motion(void *data, struct wl_pointer *pointer,
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uint32_t time, wl_fixed_t x, wl_fixed_t y)
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{
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struct input *input = data;
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input->x = wl_fixed_to_double(x);
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input->y = wl_fixed_to_double(y);
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}
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static void
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pointer_handle_button(void *data, struct wl_pointer *pointer,
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uint32_t serial, uint32_t time, uint32_t button,
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uint32_t state_w)
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{
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struct input *input = data;
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uint32_t bit;
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enum wl_pointer_button_state state = state_w;
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bit = 1 << (button - BTN_LEFT);
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if (state == WL_POINTER_BUTTON_STATE_PRESSED)
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input->button_mask |= bit;
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else
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input->button_mask &= ~bit;
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}
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static void
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pointer_handle_axis(void *data, struct wl_pointer *pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value)
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{
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}
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static void
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keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
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uint32_t format, int fd, uint32_t size)
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{
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close(fd);
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}
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static void
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keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, struct wl_surface *surface,
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struct wl_array *keys)
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{
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struct input *input = data;
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input->keyboard_focus = wl_surface_get_user_data(surface);
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}
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static void
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keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, struct wl_surface *surface)
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{
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struct input *input = data;
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input->keyboard_focus = NULL;
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}
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static void
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keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, uint32_t time, uint32_t key,
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uint32_t state)
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{
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}
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static void
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keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, uint32_t mods_depressed,
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uint32_t mods_latched, uint32_t mods_locked,
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uint32_t group)
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{
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}
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static const struct wl_pointer_listener pointer_listener = {
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pointer_handle_enter,
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pointer_handle_leave,
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pointer_handle_motion,
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pointer_handle_button,
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pointer_handle_axis,
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};
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static const struct wl_keyboard_listener keyboard_listener = {
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keyboard_handle_keymap,
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keyboard_handle_enter,
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keyboard_handle_leave,
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keyboard_handle_key,
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keyboard_handle_modifiers,
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};
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static void
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seat_handle_capabilities(void *data, struct wl_seat *seat,
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enum wl_seat_capability caps)
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{
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struct input *input = data;
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if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) {
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input->pointer = wl_seat_get_pointer(seat);
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wl_pointer_set_user_data(input->pointer, input);
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wl_pointer_add_listener(input->pointer, &pointer_listener,
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input);
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} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) {
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wl_pointer_destroy(input->pointer);
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input->pointer = NULL;
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}
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if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) {
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input->keyboard = wl_seat_get_keyboard(seat);
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wl_keyboard_set_user_data(input->keyboard, input);
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wl_keyboard_add_listener(input->keyboard, &keyboard_listener,
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input);
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} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) {
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wl_keyboard_destroy(input->keyboard);
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input->keyboard = NULL;
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}
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}
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static const struct wl_seat_listener seat_listener = {
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seat_handle_capabilities,
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};
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static void
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output_handle_geometry(void *data,
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struct wl_output *wl_output,
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int x, int y,
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int physical_width,
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int physical_height,
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int subpixel,
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const char *make,
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const char *model,
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int32_t transform)
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{
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struct output *output = data;
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output->x = x;
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output->y = y;
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}
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static void
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output_handle_mode(void *data,
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struct wl_output *wl_output,
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uint32_t flags,
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int width,
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int height,
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int refresh)
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{
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struct output *output = data;
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if (flags & WL_OUTPUT_MODE_CURRENT) {
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output->width = width;
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output->height = height;
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}
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}
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static const struct wl_output_listener output_listener = {
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output_handle_geometry,
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output_handle_mode
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};
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static void
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handle_global(struct wl_display *_display, uint32_t id,
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const char *interface, uint32_t version, void *data)
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{
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struct display *display = data;
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struct input *input;
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struct output *output;
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if (strcmp(interface, "wl_compositor") == 0) {
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display->compositor =
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wl_display_bind(display->display,
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id, &wl_compositor_interface);
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} else if (strcmp(interface, "wl_seat") == 0) {
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input = calloc(1, sizeof *input);
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input->seat = wl_display_bind(display->display, id,
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&wl_seat_interface);
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input->pointer_focus = NULL;
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input->keyboard_focus = NULL;
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wl_seat_add_listener(input->seat, &seat_listener, input);
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display->input = input;
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} else if (strcmp(interface, "wl_output") == 0) {
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output = malloc(sizeof *output);
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output->output = wl_display_bind(display->display,
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id, &wl_output_interface);
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wl_output_add_listener(output->output,
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&output_listener, output);
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display->output = output;
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fprintf(stderr, "created output global %p\n", display->output);
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}
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}
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static void
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surface_enter(void *data,
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struct wl_surface *wl_surface, struct wl_output *output)
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{
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struct surface *surface = data;
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surface->output = wl_output_get_user_data(output);
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fprintf(stderr, "got surface enter, output %p\n", surface->output);
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}
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static void
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surface_leave(void *data,
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struct wl_surface *wl_surface, struct wl_output *output)
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{
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struct surface *surface = data;
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surface->output = NULL;
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}
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static const struct wl_surface_listener surface_listener = {
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surface_enter,
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surface_leave
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};
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static void
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create_surface(int fd, struct display *display)
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{
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struct surface *surface;
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char buf[64];
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int len;
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surface = malloc(sizeof *surface);
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assert(surface);
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surface->surface = wl_compositor_create_surface(display->compositor);
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wl_surface_add_listener(surface->surface, &surface_listener, surface);
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wl_display_flush(display->display);
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len = snprintf(buf, sizeof buf, "surface %d\n",
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wl_proxy_get_id((struct wl_proxy *) surface->surface));
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assert(write(fd, buf, len) == len);
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poll(NULL, 0, 100); /* Wait for next frame where we'll get events. */
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wl_display_roundtrip(display->display);
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assert(surface->output == display->output);
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assert(display->input->pointer_focus == surface);
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assert(display->input->x == 50);
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assert(display->input->y == 50);
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}
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int main(int argc, char *argv[])
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{
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struct display *display;
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char buf[256], *p;
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int ret, fd;
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display = malloc(sizeof *display);
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assert(display);
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display->display = wl_display_connect(NULL);
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assert(display->display);
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wl_display_add_global_listener(display->display,
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handle_global, display);
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wl_display_iterate(display->display, WL_DISPLAY_READABLE);
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wl_display_roundtrip(display->display);
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fd = 0;
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p = getenv("TEST_SOCKET");
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if (p)
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fd = strtol(p, NULL, 0);
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while (1) {
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ret = read(fd, buf, sizeof buf);
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if (ret == -1) {
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fprintf(stderr, "read error: fd %d, %m\n", fd);
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return -1;
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}
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fprintf(stderr, "test-client: got %.*s\n", ret - 1, buf);
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if (strncmp(buf, "bye\n", ret) == 0) {
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return 0;
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} else if (strncmp(buf, "create-surface\n", ret) == 0) {
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create_surface(fd, display);
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} else {
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fprintf(stderr, "unknown command %.*s\n", ret, buf);
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return -1;
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}
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}
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assert(0);
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}
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