diff options
Diffstat (limited to 'src/utils.c')
-rw-r--r-- | src/utils.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c new file mode 100644 index 0000000..bf0a0c1 --- /dev/null +++ b/src/utils.c @@ -0,0 +1,62 @@ +#include "../include/utils.h" +#include <time.h> +#include <string.h> + +double clock_get_monotonic_seconds(void) { + struct timespec ts; + ts.tv_sec = 0; + ts.tv_nsec = 0; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (double)ts.tv_sec + (double)ts.tv_nsec * 0.000000001; +} + +static const XRRModeInfo* get_mode_info(const XRRScreenResources *sr, RRMode id) { + for(int i = 0; i < sr->nmode; ++i) { + if(sr->modes[i].id == id) + return &sr->modes[i]; + } + return NULL; +} + +void for_each_active_monitor_output(Display *display, active_monitor_callback callback, void *userdata) { + XRRScreenResources *screen_res = XRRGetScreenResources(display, DefaultRootWindow(display)); + if(!screen_res) + return; + + for(int i = 0; i < screen_res->noutput; ++i) { + XRROutputInfo *out_info = XRRGetOutputInfo(display, screen_res, screen_res->outputs[i]); + if(out_info && out_info->crtc && out_info->connection == RR_Connected) { + XRRCrtcInfo *crt_info = XRRGetCrtcInfo(display, screen_res, out_info->crtc); + if(crt_info && crt_info->mode) { + const XRRModeInfo *mode_info = get_mode_info(screen_res, crt_info->mode); + if(mode_info) + callback(out_info, crt_info, mode_info, userdata); + } + if(crt_info) + XRRFreeCrtcInfo(crt_info); + } + if(out_info) + XRRFreeOutputInfo(out_info); + } + + XRRFreeScreenResources(screen_res); +} + +static void get_monitor_by_name_callback(const XRROutputInfo *output_info, const XRRCrtcInfo *crt_info, const XRRModeInfo *mode_info, void *userdata) { + get_monitor_by_name_userdata *data = (get_monitor_by_name_userdata*)userdata; + if(!data->found_monitor && data->name_len == output_info->nameLen && memcmp(data->name, output_info->name, data->name_len) == 0) { + data->monitor->pos = (vec2i){ .x = crt_info->x, .y = crt_info->y }; + data->monitor->size = (vec2i){ .x = (int)crt_info->width, .y = (int)crt_info->height }; + data->found_monitor = true; + } +} + +bool get_monitor_by_name(Display *display, const char *name, gsr_monitor *monitor) { + get_monitor_by_name_userdata userdata; + userdata.name = name; + userdata.name_len = strlen(name); + userdata.monitor = monitor; + userdata.found_monitor = false; + for_each_active_monitor_output(display, get_monitor_by_name_callback, &userdata); + return userdata.found_monitor; +} |