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main.c
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main.c
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#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <poll.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <time.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wayland-egl.h>
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
#include <glad/glad.h>
#include <glad/glad_egl.h>
#include <mpv/client.h>
#include <mpv/render_gl.h>
#include <cflogprinter.h>
typedef unsigned int uint;
struct wl_state {
struct wl_display *display;
struct wl_compositor *compositor;
struct zwlr_layer_shell_v1 *layer_shell;
struct wl_list outputs; // struct display_output::link
char *monitor; // User selected output
int surface_layer;
};
struct display_output {
uint32_t wl_name;
struct wl_output *wl_output;
char *name;
char *identifier;
struct wl_state *state;
struct wl_surface *surface;
struct zwlr_layer_surface_v1 *layer_surface;
struct wl_egl_window *egl_window;
EGLSurface *egl_surface;
uint32_t width, height;
uint32_t scale;
struct wl_list link;
struct wl_callback *frame_callback;
bool redraw_needed;
};
static EGLConfig egl_config;
static EGLDisplay *egl_display;
static EGLContext *egl_context;
static mpv_handle *mpv;
static mpv_render_context *mpv_glcontext;
static int wakeup_pipe[2];
static char *video_path;
static char *mpv_options;
static struct {
char **pauselist;
char **stoplist;
char **argv_copy;
char *save_info;
bool auto_pause;
bool auto_stop;
int is_paused;
bool frame_ready;
bool stop_render_loop;
} halt_info = {NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0};
static pthread_t threads[5] = {0};
static uint SLIDESHOW_TIME = 0;
static int VERBOSE = 0;
static void nop() {}
static void exit_cleanup() {
// Give mpv a chance to finish
halt_info.stop_render_loop = 1;
for (int trys=10; halt_info.stop_render_loop && trys > 0; trys--) {
usleep(10000);
}
// If render loop failed to stop it's self
if (halt_info.stop_render_loop && VERBOSE)
cflp_warning("Failed to quit mpv");
// Cancel all threads
for (uint i=0; threads[i] != 0; i++) {
if (pthread_self() != threads[i])
pthread_cancel(threads[i]);
}
if (mpv_glcontext)
mpv_render_context_free(mpv_glcontext);
if (mpv)
mpv_terminate_destroy(mpv);
if (egl_context)
eglDestroyContext(egl_display, egl_context);
}
static void exit_mpvpaper(int reason) {
if (VERBOSE)
cflp_info("Exiting mpvpaper");
exit_cleanup();
exit(reason);
}
static void *exit_by_pthread() { exit_mpvpaper(EXIT_SUCCESS); pthread_exit(NULL);}
static void handle_signal(int signum) {
(void)signum;
// Separate thread to avoid crash
pthread_t thread;
pthread_create(&thread, NULL, exit_by_pthread, NULL);
}
const static struct wl_callback_listener wl_surface_frame_listener;
static void render(struct display_output *output) {
mpv_render_param render_params[] = {
{MPV_RENDER_PARAM_OPENGL_FBO, &(mpv_opengl_fbo){
.fbo = 0,
.w = output->width * output->scale,
.h = output->height * output->scale,
}},
// Flip rendering (needed due to flipped GL coordinate system).
{MPV_RENDER_PARAM_FLIP_Y, &(int){1}},
// Do not wait for a fresh frame to render
{MPV_RENDER_PARAM_BLOCK_FOR_TARGET_TIME, &(int){0}},
{MPV_RENDER_PARAM_INVALID, NULL},
};
if (!eglMakeCurrent(egl_display, output->egl_surface, output->egl_surface, egl_context))
cflp_error("Failed to make output surface current 0x%X", eglGetError());
glViewport(0, 0, output->width * output->scale, output->height * output->scale);
// Render frame
int mpv_err = mpv_render_context_render(mpv_glcontext, render_params);
if (mpv_err < 0)
cflp_error("Failed to render frame with mpv, %s", mpv_error_string(mpv_err));
// Callback new frame
output->frame_callback = wl_surface_frame(output->surface);
wl_callback_add_listener(output->frame_callback, &wl_surface_frame_listener, output);
output->redraw_needed = false;
// Display frame
if (!eglSwapBuffers(egl_display, output->egl_surface))
cflp_error("Failed to swap egl buffers 0x%X", eglGetError());
}
static void frame_handle_done(void *data, struct wl_callback *callback, uint32_t frame_time) {
(void)frame_time;
struct display_output *output = data;
wl_callback_destroy(callback);
// Display is ready for new frame
output->frame_callback = NULL;
// Reset deadman switch timer
halt_info.frame_ready = 1;
// Sleep more while paused
if (halt_info.is_paused) {
int start_time = time(NULL);
while (halt_info.is_paused) {
if (time(NULL) - start_time >= 1)
break;
if (halt_info.stop_render_loop)
halt_info.stop_render_loop = 0;
usleep(1000);
}
}
// Render next frame
if (output->redraw_needed) {
if (VERBOSE == 2)
cflp_info("%s is ready for MPV to render the next frame", output->name);
render(output);
}
}
const static struct wl_callback_listener wl_surface_frame_listener = {
.done = frame_handle_done,
};
static void stop_mpvpaper() {
// Save video position to arg -Z
const char *time_pos = mpv_get_property_string(mpv, "time-pos");
const char *playlist_pos = mpv_get_property_string(mpv, "playlist-pos");
char save_info[30];
sprintf(save_info, "%s %s", time_pos, playlist_pos);
int argv_alloc_size = strlen("-Z")+1 + strlen(save_info)+1;
for (uint i=0; halt_info.argv_copy[i] != NULL; i++) {
argv_alloc_size += strlen(halt_info.argv_copy[i])+1;
}
char **argv = calloc(argv_alloc_size+1, sizeof(char));
uint i = 0;
for (i=0; halt_info.argv_copy[i] != NULL; i++) {
argv[i] = strdup(halt_info.argv_copy[i]);
}
argv[i] = "-Z";
argv[i+1] = save_info;
argv[i+2] = NULL;
// Get the "real" cwd
char exe_dir[1024];
int cut_point = readlink("/proc/self/exe", exe_dir, sizeof(exe_dir));
for (uint i=cut_point; i > 1; i--) {
if (exe_dir[i] == '/') {
exe_dir[i+1] = '\0';
break;
}
}
exit_cleanup();
// Start holder script
execv(strcat(exe_dir, "mpvpaper-holder"), argv);
cflp_error("Failed to stop mpvpaper");
exit(EXIT_FAILURE);
}
// Allow pthread_cancel while sleeping
static void pthread_sleep(uint time) {
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
sleep(time);
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
}
static void pthread_usleep(uint time) {
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
usleep(time);
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
}
static char *check_watch_list(char **list) {
char pid_name[512] = {0};
for (uint i=0; list[i] != NULL; i++) {
strcpy(pid_name, "pidof ");
strcat(pid_name, list[i]);
strcat(pid_name, " > /dev/null");
// Stop if program is open
if (!system(pid_name))
return list[i];
}
return NULL;
}
static void *monitor_pauselist() {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
bool is_paused = 0;
while (halt_info.pauselist) {
if (!halt_info.is_paused) {
char *app;
while ((app = check_watch_list(halt_info.pauselist))) {
if (app && !is_paused) {
if (VERBOSE)
cflp_info("Pausing for %s", app);
mpv_command_async(mpv, 0, (const char*[]) {"set", "pause", "yes", NULL});
is_paused = 1;
halt_info.is_paused += 1;
}
pthread_sleep(1);
}
if (is_paused) {
is_paused = 0;
if (halt_info.is_paused)
halt_info.is_paused -= 1;
}
}
pthread_sleep(1);
}
pthread_exit(NULL);
}
static void *monitor_stoplist() {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
while (halt_info.stoplist) {
char *app = check_watch_list(halt_info.stoplist);
if (app) {
if (VERBOSE)
cflp_info("Stopping for %s", app);
stop_mpvpaper();
}
pthread_sleep(1);
}
pthread_exit(NULL);
}
static void *handle_auto_pause() {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
while (halt_info.auto_pause) {
if (!halt_info.is_paused) {
time_t start_time = time(NULL);
bool is_paused = 0;
// Set deadman switch timer
halt_info.frame_ready = 0;
while (!halt_info.frame_ready) {
if ((time(NULL) - start_time) >= 2 && !is_paused) {
if (VERBOSE)
cflp_info("Pausing because mpvpaper is hidden");
mpv_command_async(mpv, 0, (const char*[]) {"set", "pause", "yes", NULL});
is_paused = 1;
halt_info.is_paused += 1;
}
pthread_usleep(10000);
}
if (is_paused) {
is_paused = 0;
if (halt_info.is_paused)
halt_info.is_paused -= 1;
}
}
pthread_sleep(1);
}
pthread_exit(NULL);
}
static void *handle_auto_stop() {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
while (halt_info.auto_stop) {
time_t start_time = time(NULL);
// Set deadman switch timer
halt_info.frame_ready = 0;
while (!halt_info.frame_ready) {
if ((time(NULL) - start_time) >= 2) {
if (VERBOSE)
cflp_info("Stopping because mpvpaper is hidden");
stop_mpvpaper();
break;
}
pthread_usleep(10000);
}
pthread_sleep(1);
}
pthread_exit(NULL);
}
static void *handle_mpv_events() {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
int mpv_paused = 0;
time_t start_time = time(NULL);
const int MPV_OBSERVE_PAUSE = 1;
mpv_observe_property(mpv, MPV_OBSERVE_PAUSE, "pause", MPV_FORMAT_FLAG);
while (true) {
if (SLIDESHOW_TIME) {
if ((time(NULL) - start_time) >= SLIDESHOW_TIME) {
mpv_command_async(mpv, 0, (const char*[]) {"playlist-next", NULL});
start_time = time(NULL);
}
}
mpv_event *event = mpv_wait_event(mpv, 0);
if (event->event_id == MPV_EVENT_SHUTDOWN) {
exit_mpvpaper(EXIT_SUCCESS);
} else if (event->event_id == MPV_EVENT_PROPERTY_CHANGE) {
if (event->reply_userdata == MPV_OBSERVE_PAUSE) {
mpv_get_property(mpv, "pause", MPV_FORMAT_FLAG, &mpv_paused);
if (mpv_paused) {
// User paused
if (!halt_info.is_paused)
halt_info.is_paused += 1;
} else {
halt_info.is_paused = 0;
}
}
}
if (!halt_info.is_paused && mpv_paused)
mpv_command_async(mpv, 0, (const char*[]) {"set", "pause", "no", NULL});
pthread_usleep(10000);
}
mpv_unobserve_property(mpv, MPV_OBSERVE_PAUSE);
pthread_exit(NULL);
}
static void init_threads() {
uint id = 0;
pthread_create(&threads[id], NULL, handle_mpv_events, NULL);
id++;
// Thread for monitoring if mpvpaper is hidden
if (halt_info.auto_pause) {
pthread_create(&threads[id], NULL, handle_auto_pause, NULL);
id++;
} else if (halt_info.auto_stop) {
pthread_create(&threads[id], NULL, handle_auto_stop, NULL);
id++;
}
// Threads for monitoring watch lists
if (halt_info.pauselist) {
pthread_create(&threads[id], NULL, monitor_pauselist, NULL);
id++;
}
if (halt_info.stoplist) {
pthread_create(&threads[id], NULL, monitor_stoplist, NULL);
id++;
}
}
static void set_init_mpv_options(const struct wl_state *state) {
// Enable user control through terminal by default
mpv_set_option_string(mpv, "input-default-bindings", "yes");
mpv_set_option_string(mpv, "input-terminal", "yes");
mpv_set_option_string(mpv, "terminal", "yes");
// Load user configs
const char *home_dir = getenv("HOME");
char *config_path = calloc(strlen(home_dir)+1 + 30, sizeof(char));
strcpy(config_path, home_dir);
char loaded_configs[50] = "";
strcpy(config_path+strlen(home_dir), "/.config/mpv/mpv.conf");
if (mpv_load_config_file(mpv, config_path) == 0)
strcat(loaded_configs, "mpv.conf ");
strcpy(config_path+strlen(home_dir), "/.config/mpv/input.conf");
if (mpv_load_config_file(mpv, config_path) == 0)
strcat(loaded_configs, "input.conf ");
strcpy(config_path+strlen(home_dir), "/.config/mpv/fonts.conf");
if (mpv_load_config_file(mpv, config_path) == 0)
strcat(loaded_configs, "fonts.conf ");
free(config_path);
if (VERBOSE && strcmp(loaded_configs, ""))
cflp_info("Loaded [ %s] user configs from \"~/.config/mpv/\"", loaded_configs);
// Convenience options passed for slideshow mode
if (SLIDESHOW_TIME != 0) {
mpv_set_option_string(mpv, "loop", "yes");
mpv_set_option_string(mpv, "loop-playlist", "yes");
}
// Set mpv_options passed
if (mpv_options) {
// Create config file name
char *opt_config_path = calloc(strlen("/tmp/mpvpaper.config")+1 + strlen(state->monitor)+1, sizeof(char));
strcpy(opt_config_path, "/tmp/mpvpaper");
strcat(opt_config_path, state->monitor);
strcat(opt_config_path, ".config");
// Put options into config file
FILE *file = fopen(opt_config_path, "w");
fputs(mpv_options, file);
fclose(file);
mpv_load_config_file(mpv, opt_config_path);
remove(opt_config_path);
free(opt_config_path);
}
}
static void *get_proc_address_mpv(void *ctx, const char *name) {
(void)ctx;
return eglGetProcAddress(name);
}
static void render_update_callback(void *callback_ctx) {
(void)callback_ctx;
uint8_t tmp = 0;
if (write(wakeup_pipe[1], &tmp, 1) == -1)
exit_mpvpaper(EXIT_FAILURE);
}
static void init_mpv(const struct wl_state *state) {
int mpv_err;
mpv = mpv_create();
if (!mpv) {
cflp_error("Failed creating mpv context");
exit_mpvpaper(EXIT_FAILURE);
}
set_init_mpv_options(state);
mpv_err = mpv_initialize(mpv);
if (mpv_err < 0) {
cflp_error("Failed to init mpv, %s", mpv_error_string(mpv_err));
exit_mpvpaper(EXIT_FAILURE);
}
// Force libmpv vo as nothing else will work
char *vo_option = mpv_get_property_string(mpv, "options/vo");
if (strcmp(vo_option, "libmpv") != 0 && strcmp(vo_option, "") != 0) {
cflp_warning("mpvpaper does not support any other vo than \"libmpv\"");
mpv_set_option_string(mpv, "vo", "libmpv");
}
// Have mpv render onto egl context
mpv_render_param params[] = {
{MPV_RENDER_PARAM_WL_DISPLAY, state->display},
{MPV_RENDER_PARAM_API_TYPE, MPV_RENDER_API_TYPE_OPENGL},
{MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, &(mpv_opengl_init_params){
.get_proc_address = get_proc_address_mpv,
}},
{MPV_RENDER_PARAM_INVALID, NULL},
};
mpv_err = mpv_render_context_create(&mpv_glcontext, mpv, params);
if (mpv_err < 0) {
cflp_error("Failed to initialize mpv GL context, %s", mpv_error_string(mpv_err));
exit_mpvpaper(EXIT_FAILURE);
}
// Restore video position after auto stop event
char *default_start = NULL;
if (halt_info.save_info) {
char time_pos[10];
char playlist_pos[10];
sscanf(halt_info.save_info, "%s %s", time_pos, playlist_pos);
if (VERBOSE)
cflp_info("Restoring previous time: %s and playlist position: %s", time_pos, playlist_pos);
// Save default start pos
default_start = mpv_get_property_string(mpv, "start");
// Restore video position
mpv_command(mpv, (const char*[]) {"set", "start", time_pos, NULL});
// Recover playlist pos, that is if it's not shuffled...
mpv_command(mpv, (const char*[]) {"set", "playlist-start", playlist_pos, NULL});
}
mpv_command(mpv, (const char*[]) {"loadfile", video_path, NULL});
mpv_event *event = mpv_wait_event(mpv, 1);
while (event->event_id != MPV_EVENT_FILE_LOADED) {
event = mpv_wait_event(mpv, 1);
}
if (VERBOSE)
cflp_info("Loaded %s", video_path);
// Return start pos to default
if (default_start)
mpv_command(mpv, (const char*[]) {"set", "start", default_start, NULL});
// mpv must never idle
mpv_command(mpv, (const char*[]) {"set", "idle", "no", NULL});
mpv_render_context_set_update_callback(mpv_glcontext, render_update_callback, NULL);
}
static void init_egl(struct wl_state *state) {
egl_display = eglGetPlatformDisplay(EGL_PLATFORM_WAYLAND_KHR, state->display, NULL);
if (!eglInitialize(egl_display, NULL, NULL)) {
cflp_error("Failed to initialize EGL 0x%X", eglGetError());
exit_mpvpaper(EXIT_FAILURE);
}
eglBindAPI(EGL_OPENGL_API);
const EGLint win_attrib[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_NONE
};
EGLint config_len;
if (!eglChooseConfig(egl_display, win_attrib, &egl_config, 1, &config_len)) {
cflp_error("Failed to set EGL frame buffer config 0x%X", eglGetError());
exit_mpvpaper(EXIT_FAILURE);
}
// Check for OpenGL compatibility for creating egl context
static const struct { int major, minor; } gl_versions[] = {
{4, 6}, {4, 5}, {4, 4}, {4, 3}, {4, 2}, {4, 1}, {4, 0},
{3, 3}, {3, 2}, {3, 1}, {3, 0},
{0, 0}
};
egl_context = NULL;
for (uint i = 0; gl_versions[i].major > 0; i++) {
const EGLint ctx_attrib[] = {
EGL_CONTEXT_MAJOR_VERSION, gl_versions[i].major,
EGL_CONTEXT_MINOR_VERSION, gl_versions[i].major,
EGL_NONE
};
egl_context = eglCreateContext(egl_display, egl_config, EGL_NO_CONTEXT, ctx_attrib);
if (egl_context) {
if (VERBOSE)
cflp_info("OpenGL %i.%i EGL context created", gl_versions[i].major, gl_versions[i].minor);
break;
}
}
if (!egl_context) {
cflp_error("Failed to create EGL context 0x%X", eglGetError());
exit_mpvpaper(EXIT_FAILURE);
}
if (!eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl_context)) {
cflp_error("Failed to make context current 0x%X", eglGetError());
exit_mpvpaper(EXIT_FAILURE);
}
if (!gladLoadGLLoader((GLADloadproc)eglGetProcAddress)) {
cflp_error("Failed to load OpenGL 0x%X", eglGetError());
exit_mpvpaper(EXIT_FAILURE);
}
}
static void destroy_display_output(struct display_output *output) {
if (!output)
return;
wl_list_remove(&output->link);
if (output->layer_surface != NULL)
zwlr_layer_surface_v1_destroy(output->layer_surface);
if (output->surface != NULL)
wl_surface_destroy(output->surface);
if (output->egl_surface)
eglDestroySurface(egl_display, output->egl_surface);
if (output->egl_window)
wl_egl_window_destroy(output->egl_window);
wl_output_destroy(output->wl_output);
free(output->name);
free(output->identifier);
free(output);
}
static void layer_surface_configure(void *data, struct zwlr_layer_surface_v1 *surface, uint32_t serial,
uint32_t width, uint32_t height) {
struct display_output *output = data;
output->width = width;
output->height = height;
zwlr_layer_surface_v1_ack_configure(surface, serial);
wl_surface_set_buffer_scale(output->surface, output->scale);
// Setup render loop
struct wl_state *state = output->state;
if (!egl_display) {
init_egl(state);
if (VERBOSE)
cflp_success("EGL initialized");
}
if (!mpv) {
init_mpv(state);
init_threads();
if (VERBOSE)
cflp_success("MPV initialized");
}
if (!output->egl_window) {
output->egl_window = wl_egl_window_create(output->surface, output->width * output->scale, output->height * output->scale);
output->egl_surface = eglCreatePlatformWindowSurface(egl_display, egl_config, output->egl_window, NULL);
if (!output->egl_surface) {
cflp_error("Failed to create EGL surface for %s 0x%X", output->name, eglGetError());
destroy_display_output(output);
return;
}
if (!eglMakeCurrent(egl_display, output->egl_surface, output->egl_surface, egl_context))
cflp_error("Failed to make output surface current 0x%X", eglGetError());
eglSwapInterval(egl_display, 0);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
// Start render loop
if (VERBOSE)
cflp_success("%s setup is complete and is ready to start rendering", output->name);
render(output);
} else {
wl_egl_window_resize(output->egl_window, output->width * output->scale, output->height * output->scale, 0, 0);
}
}
static void layer_surface_closed(void *data, struct zwlr_layer_surface_v1 *surface) {
(void)surface;
struct display_output *output = data;
if (VERBOSE)
cflp_info("Destroying output %s (%s)", output->name, output->identifier);
destroy_display_output(output);
}
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
static void create_layer_surface(struct display_output *output) {
output->surface = wl_compositor_create_surface(output->state->compositor);
// Empty input region
struct wl_region *input_region = wl_compositor_create_region(output->state->compositor);
wl_surface_set_input_region(output->surface, input_region);
wl_region_destroy(input_region);
output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
output->state->layer_shell, output->surface, output->wl_output, output->state->surface_layer, "mpvpaper");
zwlr_layer_surface_v1_set_size(output->layer_surface, 0, 0);
zwlr_layer_surface_v1_set_anchor(output->layer_surface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT);
zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, -1);
zwlr_layer_surface_v1_add_listener(output->layer_surface, &layer_surface_listener, output);
wl_surface_commit(output->surface);
}
static void output_name(void *data, struct wl_output *wl_output, const char *name) {
(void)wl_output;
struct display_output *output = data;
output->name = strdup(name);
}
static void output_done(void *data, struct wl_output *wl_output) {
(void)wl_output;
struct display_output *output = data;
bool name_ok = (strcmp(output->name, output->state->monitor) == 0) || (strcmp(output->state->monitor, "*") == 0);
if (name_ok && !output->layer_surface) {
if (VERBOSE)
cflp_info("Output %s (%s) selected", output->name, output->identifier);
create_layer_surface(output);
}
if (!name_ok) {
if (VERBOSE)
cflp_warning("Output %s (%s) not selected", output->name, output->identifier);
destroy_display_output(output);
}
}
static void output_scale(void *data, struct wl_output *wl_output, int32_t scale) {
struct display_output *output = data;
output->scale = scale;
}
static void output_description(void *data, struct wl_output *wl_output, const char *description) {
(void)wl_output;
struct display_output *output = data;
// wlroots currently sets the description to `make model serial (name)`
// If this changes in the future, this will need to be modified.
char *paren = strrchr(description, '(');
if (paren) {
size_t length = paren - description;
output->identifier = calloc(length, sizeof(char));
if (!output->identifier) {
cflp_warning("Failed to allocate output identifier");
return;
}
strncpy(output->identifier, description, length);
output->identifier[length - 1] = '\0';
}
}
static const struct wl_output_listener output_listener = {
.geometry = nop,
.mode = nop,
.done = output_done,
.scale = output_scale,
.name = output_name,
.description = output_description,
};
static void handle_global(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version) {
(void)version;
struct wl_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name, &wl_compositor_interface, 4);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct display_output *output = calloc(1, sizeof(struct display_output));
output->scale = 1; // Default to no scaling
output->state = state;
output->wl_name = name;
output->wl_output = wl_registry_bind(registry, name, &wl_output_interface, 4);
wl_output_add_listener(output->wl_output, &output_listener, output);
wl_list_insert(&state->outputs, &output->link);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
state->layer_shell = wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, 1);
}
}
static void handle_global_remove(void *data, struct wl_registry *registry, uint32_t name) {
(void)registry;
struct wl_state *state = data;
struct display_output *output, *tmp;
wl_list_for_each_safe(output, tmp, &state->outputs, link) {
if (output->wl_name == name) {
cflp_info("Destroying output %s (%s)", output->name, output->identifier);
destroy_display_output(output);
break;
}
}
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
static char **get_watch_list(char *path_name) {
FILE *file = fopen(path_name, "r");
if (file) {
// Get alloc size
fseek(file, 0L, SEEK_END);
char **list = calloc(ftell(file) + 1, sizeof(char));
rewind(file);
// Read lines
char app[512];
for (uint i=0; fscanf(file, "%s", app) == 1; i++) {
list[i] = strdup(app);
}
fclose(file);
// If any app found
if (list[0])
return list;
}
return NULL;
}
static void copy_argv(int argc, char **argv) {
int argv_alloc_size = 0;
for (int i=0; argv[i] != NULL; i++) {
argv_alloc_size += strlen(argv[i])+1;
}
halt_info.argv_copy = calloc(argv_alloc_size, sizeof(char));
int j = 0;
for (int i=0; i < argc; i++) {
if (strcmp(argv[i], "-Z") == 0) { // Remove hidden opt
i++; // Skip optind
} else {
halt_info.argv_copy[j] = strdup(argv[i]);
j++;
}
}
}
static void set_watch_lists() {
const char *home_dir = getenv("HOME");
char *pause_path = calloc(strlen(home_dir)+1 + strlen("/.config/mpvpaper/pauselist")+1, sizeof(char));
strcpy(pause_path, home_dir);
strcat(pause_path, "/.config/mpvpaper/pauselist");
halt_info.pauselist = get_watch_list(pause_path);
free(pause_path);
char *stop_path = calloc(strlen(home_dir)+1 + strlen("/.config/mpvpaper/stoplist")+1, sizeof(char));
strcpy(stop_path, home_dir);
strcat(stop_path, "/.config/mpvpaper/stoplist");
halt_info.stoplist = get_watch_list(stop_path);
free(stop_path);
if (VERBOSE && halt_info.pauselist)
cflp_info("pauselist found and will be monitored");
if (VERBOSE && halt_info.stoplist)
cflp_info("stoplist found and will be monitored");
}
static void parse_command_line(int argc, char **argv, struct wl_state *state) {
static struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"verbose", no_argument, NULL, 'v'},
{"fork", no_argument, NULL, 'f'},
{"auto-pause", no_argument, NULL, 'p'},
{"auto-stop", no_argument, NULL, 's'},
{"slideshow", required_argument, NULL, 'n'},
{"layer", required_argument, NULL, 'l'},
{"mpv-options", required_argument, NULL, 'o'},
{0, 0, 0, 0}};
const char *usage =
"Usage: mpvpaper [options] <output> <url|path filename>\n"
"\n"
"Example: mpvpaper -vs -o \"no-audio loop\" DP-2 /path/to/video\n"
"\n"
"Options:\n"
"--help -h Displays this help message\n"
"--verbose -v Be more verbose (-vv for higher verbosity)\n"
"--fork -f Forks mpvpaper so you can close the terminal\n"
"--auto-pause -p Automagically* pause mpv when the wallpaper is hidden\n"
" This saves CPU usage, more or less, seamlessly\n"
"--auto-stop -s Automagically* stop mpv when the wallpaper is hidden\n"
" This saves CPU/RAM usage, although more abruptly\n"
"--slideshow -n SECS Slideshow mode plays the next video in a playlist every ? seconds\n"
" And passes mpv options \"loop loop-playlist\" for convenience\n"
"--layer -l LAYER Specifies shell surface layer to run on (background by default)\n"
"--mpv-options -o \"OPTIONS\" Forwards mpv options (Must be within quotes\"\")\n"
"\n"
"* See man page for more details\n";
char *layer_name;
char opt;
while ((opt = getopt_long(argc, argv, "hvfpsn:l:o:Z:", long_options, NULL)) != -1) {
switch (opt) {
case 'h':
fprintf(stdout, "%s", usage);
exit(EXIT_SUCCESS);
case 'v':
VERBOSE += 1;
break;
case 'f':
if (fork() > 0)
exit(EXIT_SUCCESS);
fclose(stdout);
fclose(stderr);
fclose(stdin);
break;
case 'p':
halt_info.auto_pause = 1;
halt_info.auto_stop = 0;
break;
case 's':
halt_info.auto_stop = 1;
halt_info.auto_pause = 0;
break;
case 'n':
SLIDESHOW_TIME = atoi(optarg);
if (SLIDESHOW_TIME == 0)
cflp_warning(
"0 or invalid time set for slideshow\n"
"Please use a positive integer");
break;
case 'l':
layer_name = strdup(optarg);
if (layer_name == NULL) {
state->surface_layer = ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND;
} else if (strcasecmp(layer_name, "top") == 0) {
state->surface_layer = ZWLR_LAYER_SHELL_V1_LAYER_TOP;
} else if (strcasecmp(layer_name, "bottom") == 0) {
state->surface_layer = ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM;
} else if (strcasecmp(layer_name, "background") == 0) {
state->surface_layer = ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND;
} else if (strcasecmp(layer_name, "overlay") == 0) {
state->surface_layer = ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY;
} else {
cflp_error(
"%s is not a shell surface layer\n"
"Your options are: top, bottom, background and overlay", layer_name);
exit(EXIT_FAILURE);
}
break;
case 'o':
mpv_options = strdup(optarg);
// Replace spaces with newlines
for (int i = 0; i < (int)strlen(mpv_options); i++) {
if (mpv_options[i] == ' ')
mpv_options[i] = '\n';
}
break;
case 'Z': // Hidden option to recover video pos after stopping
halt_info.save_info = strdup(optarg);