mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-22 07:02:28 +00:00
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
#define _POSIX_C_SOURCE 200112L
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#include <GLES2/gl2.h>
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#include <inttypes.h>
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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 <time.h>
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#include <wayland-server.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_output.h>
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#include <wlr/util/log.h>
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#include <xkbcommon/xkbcommon.h>
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struct sample_state {
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struct wl_listener new_output;
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struct timespec last_frame;
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float color[3];
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int dec;
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};
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struct sample_output {
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struct sample_state *sample;
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struct wlr_output *output;
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struct wl_listener frame;
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struct wl_listener destroy;
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};
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void output_frame_notify(struct wl_listener *listener, void *data) {
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struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
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struct sample_state *sample = sample_output->sample;
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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long ms = (now.tv_sec - sample->last_frame.tv_sec) * 1000 +
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(now.tv_nsec - sample->last_frame.tv_nsec) / 1000000;
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int inc = (sample->dec + 1) % 3;
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sample->color[inc] += ms / 2000.0f;
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sample->color[sample->dec] -= ms / 2000.0f;
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if (sample->color[sample->dec] < 0.0f) {
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sample->color[inc] = 1.0f;
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sample->color[sample->dec] = 0.0f;
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sample->dec = inc;
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}
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wlr_output_make_current(sample_output->output, NULL);
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glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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wlr_output_swap_buffers(sample_output->output, NULL, NULL);
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sample->last_frame = now;
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}
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void output_remove_notify(struct wl_listener *listener, void *data) {
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struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
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wl_list_remove(&sample_output->frame.link);
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free(sample_output);
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}
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void new_output_notify(struct wl_listener *listener, void *data) {
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struct wlr_output *output = data;
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struct sample_state *sample = wl_container_of(listener, sample, new_output);
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struct sample_output *sample_output = calloc(1, sizeof(struct sample_output));
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sample_output->output = output;
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sample_output->sample = sample;
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wl_signal_add(&output->events.frame, &sample_output->frame);
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sample_output->frame.notify = output_frame_notify;
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wl_signal_add(&output->events.destroy, &sample_output->destroy);
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sample_output->destroy.notify = output_remove_notify;
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}
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int main() {
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wlr_log_init(L_DEBUG, NULL);
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struct sample_state state = {
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.color = { 1.0, 0.0, 0.0 },
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.dec = 0,
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.last_frame = { 0 }
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};
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struct wl_display *display = wl_display_create();
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struct wlr_backend *wlr = wlr_backend_autocreate(display);
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if (!wlr) {
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exit(1);
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}
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wl_signal_add(&wlr->events.new_output, &state.new_output);
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state.new_output.notify = new_output_notify;
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clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
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const char *socket = wl_display_add_socket_auto(display);
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if (!socket) {
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wlr_log_errno(L_ERROR, "Unable to open wayland socket");
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wlr_backend_destroy(wlr);
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exit(1);
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}
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setenv("_WAYLAND_DISPLAY", socket, true);
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if (!wlr_backend_start(wlr)) {
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wlr_log(L_ERROR, "Failed to start backend");
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wlr_backend_destroy(wlr);
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exit(1);
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}
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wl_display_run(display);
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wl_display_destroy(display);
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}
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