Tony Crisci
7 years ago
committed by
GitHub
commit
c7c0d34e92
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#define _POSIX_C_SOURCE 199309L
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#define _XOPEN_SOURCE 500
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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#include <unistd.h>
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#include <math.h>
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#include <assert.h>
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#include <wayland-server.h>
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#include <wayland-server-protocol.h>
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#include <xkbcommon/xkbcommon.h>
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#include <GLES2/gl2.h>
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#include <wlr/render/matrix.h>
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#include <wlr/render/gles2.h>
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#include <wlr/render.h>
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_keyboard.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/xcursor.h>
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#include <wlr/types/wlr_cursor.h>
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#include <wlr/util/log.h>
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#include <wlr/types/wlr_list.h>
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#include "shared.h"
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#include "config.h"
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#include "cat.h"
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struct sample_state;
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struct sample_cursor {
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struct sample_state *state;
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struct wlr_input_device *device;
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struct wlr_cursor *cursor;
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struct wl_list link;
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struct wl_listener cursor_motion;
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struct wl_listener cursor_motion_absolute;
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struct wl_listener cursor_button;
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struct wl_listener cursor_axis;
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};
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struct sample_state {
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struct compositor_state *compositor;
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struct example_config *config;
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struct wlr_xcursor *xcursor;
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float default_color[4];
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float clear_color[4];
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struct wlr_output_layout *layout;
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struct wl_list cursors; // sample_cursor::link
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};
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static void handle_output_frame(struct output_state *output,
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struct timespec *ts) {
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struct compositor_state *state = output->compositor;
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struct sample_state *sample = state->data;
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struct wlr_output *wlr_output = output->output;
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wlr_output_make_current(wlr_output);
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glClearColor(sample->clear_color[0], sample->clear_color[1],
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sample->clear_color[2], sample->clear_color[3]);
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glClear(GL_COLOR_BUFFER_BIT);
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wlr_output_swap_buffers(wlr_output);
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}
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static void handle_output_add(struct output_state *ostate) {
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struct sample_state *sample = ostate->compositor->data;
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struct output_config *o_config =
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example_config_get_output(sample->config, ostate->output);
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if (o_config) {
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wlr_output_transform(ostate->output, o_config->transform);
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wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
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o_config->y);
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} else {
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wlr_output_layout_add_auto(sample->layout, ostate->output);
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}
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struct sample_cursor *cursor;
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wl_list_for_each(cursor, &sample->cursors, link) {
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example_config_configure_cursor(sample->config, cursor->cursor,
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sample->compositor);
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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wlr_cursor_set_image(cursor->cursor, image->buffer, image->width,
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image->width, image->height, image->hotspot_x, image->hotspot_y);
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wlr_cursor_warp(cursor->cursor, NULL, cursor->cursor->x,
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cursor->cursor->y);
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}
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}
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static void handle_output_remove(struct output_state *ostate) {
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struct sample_state *sample = ostate->compositor->data;
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wlr_output_layout_remove(sample->layout, ostate->output);
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struct sample_cursor *cursor;
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wl_list_for_each(cursor, &sample->cursors, link) {
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example_config_configure_cursor(sample->config, cursor->cursor,
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sample->compositor);
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}
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}
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static void handle_cursor_motion(struct wl_listener *listener, void *data) {
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struct sample_cursor *cursor =
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wl_container_of(listener, cursor, cursor_motion);
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struct wlr_event_pointer_motion *event = data;
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wlr_cursor_move(cursor->cursor, event->device, event->delta_x,
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event->delta_y);
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}
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static void handle_cursor_motion_absolute(struct wl_listener *listener,
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void *data) {
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struct sample_cursor *cursor =
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wl_container_of(listener, cursor, cursor_motion_absolute);
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struct wlr_event_pointer_motion_absolute *event = data;
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wlr_cursor_warp_absolute(cursor->cursor, event->device,
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event->x_mm / event->width_mm, event->y_mm / event->height_mm);
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}
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static void handle_input_add(struct compositor_state *state,
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struct wlr_input_device *device) {
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struct sample_state *sample = state->data;
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if (device->type != WLR_INPUT_DEVICE_POINTER) {
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return;
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}
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struct sample_cursor *cursor = calloc(1, sizeof(struct sample_cursor));
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cursor->state = sample;
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cursor->device = device;
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cursor->cursor = wlr_cursor_create();
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wlr_cursor_attach_output_layout(cursor->cursor, sample->layout);
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wlr_cursor_map_to_region(cursor->cursor, sample->config->cursor.mapped_box);
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wl_signal_add(&cursor->cursor->events.motion, &cursor->cursor_motion);
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cursor->cursor_motion.notify = handle_cursor_motion;
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wl_signal_add(&cursor->cursor->events.motion_absolute,
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&cursor->cursor_motion_absolute);
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cursor->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
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wlr_cursor_attach_input_device(cursor->cursor, device);
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example_config_configure_cursor(sample->config, cursor->cursor,
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sample->compositor);
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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wlr_cursor_set_image(cursor->cursor, image->buffer, image->width,
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image->width, image->height, image->hotspot_x, image->hotspot_y);
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wl_list_insert(&sample->cursors, &cursor->link);
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}
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static void cursor_destroy(struct sample_cursor *cursor) {
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wl_list_remove(&cursor->link);
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wl_list_remove(&cursor->cursor_motion.link);
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wl_list_remove(&cursor->cursor_motion_absolute.link);
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wlr_cursor_destroy(cursor->cursor);
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free(cursor);
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}
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static void handle_input_remove(struct compositor_state *state,
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struct wlr_input_device *device) {
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struct sample_state *sample = state->data;
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struct sample_cursor *cursor;
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wl_list_for_each(cursor, &sample->cursors, link) {
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if (cursor->device == device) {
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cursor_destroy(cursor);
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break;
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}
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}
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}
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int main(int argc, char *argv[]) {
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struct sample_state state = {
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.default_color = { 0.25f, 0.25f, 0.25f, 1 },
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.clear_color = { 0.25f, 0.25f, 0.25f, 1 },
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};
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wl_list_init(&state.cursors);
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state.config = parse_args(argc, argv);
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state.layout = wlr_output_layout_create();
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struct compositor_state compositor = { 0 };
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compositor.data = &state;
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compositor.output_add_cb = handle_output_add;
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compositor.output_remove_cb = handle_output_remove;
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compositor.output_frame_cb = handle_output_frame;
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compositor.input_add_cb = handle_input_add;
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compositor.input_remove_cb = handle_input_remove;
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state.compositor = &compositor;
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struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16);
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if (!theme) {
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wlr_log(L_ERROR, "Failed to load cursor theme");
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return 1;
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}
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state.xcursor = wlr_xcursor_theme_get_cursor(theme, "left_ptr");
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if (!state.xcursor) {
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wlr_log(L_ERROR, "Failed to load left_ptr cursor");
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return 1;
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}
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compositor_init(&compositor);
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if (!wlr_backend_start(compositor.backend)) {
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wlr_log(L_ERROR, "Failed to start backend");
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wlr_backend_destroy(compositor.backend);
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exit(1);
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}
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wl_display_run(compositor.display);
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compositor_fini(&compositor);
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struct sample_cursor *cursor, *tmp_cursor;
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wl_list_for_each_safe(cursor, tmp_cursor, &state.cursors, link) {
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cursor_destroy(cursor);
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}
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wlr_xcursor_theme_destroy(theme);
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example_config_destroy(state.config);
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wlr_output_layout_destroy(state.layout);
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}
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