112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <math.h>
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#include "log.h"
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#include "ipc-client.h"
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void sway_terminate(void) {
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exit(1);
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}
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int numlen(int n) {
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if (n >= 1000000) return 7;
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if (n >= 100000) return 6;
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if (n >= 10000) return 5;
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if (n >= 1000) return 4;
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if (n >= 100) return 3;
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if (n >= 10) return 2;
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return 1;
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}
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void grab_and_apply_magick(const char *file, const char *output, int socketfd) {
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uint32_t len = strlen(output);
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char *pixels = ipc_single_command(socketfd,
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IPC_SWAY_GET_PIXELS, output, &len);
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uint32_t *u32pixels = (uint32_t *)(pixels + 1);
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uint32_t width = u32pixels[0];
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uint32_t height = u32pixels[1];
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pixels += 9;
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if (width == 0 || height == 0) {
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sway_abort("Unknown output %s.", output);
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}
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const char *fmt = "convert -depth 8 -size %dx%d+0 rgba:- -flip %s";
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char *cmd = malloc(strlen(fmt) - 6 /*args*/
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+ numlen(width) + numlen(height) + strlen(file) + 1);
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sprintf(cmd, fmt, width, height, file);
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FILE *f = popen(cmd, "w");
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fwrite(pixels, 1, len, f);
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fflush(f);
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fclose(f);
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free(pixels);
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free(cmd);
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}
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int main(int argc, char **argv) {
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static int capture = 0;
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char *socket_path = NULL;
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init_log(L_INFO);
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static struct option long_options[] = {
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{"capture", no_argument, &capture, 'c'},
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{"version", no_argument, NULL, 'v'},
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{"socket", required_argument, NULL, 's'},
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{0, 0, 0, 0}
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};
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int c;
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "cvs:", long_options, &option_index);
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if (c == -1) {
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break;
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}
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switch (c) {
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case 0: // Flag
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break;
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case 's': // Socket
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socket_path = strdup(optarg);
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break;
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case 'v':
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#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
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fprintf(stdout, "sway version %s (%s, branch \"%s\")\n", SWAY_GIT_VERSION, SWAY_VERSION_DATE, SWAY_GIT_BRANCH);
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#else
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fprintf(stdout, "version not detected\n");
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#endif
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exit(0);
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break;
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}
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}
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if (!socket_path) {
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socket_path = get_socketpath();
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if (!socket_path) {
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sway_abort("Unable to retrieve socket path");
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}
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}
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if (optind >= argc - 1) {
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sway_abort("Expected output and file on command line. See `man swaygrab`");
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}
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char *file = argv[optind + 1];
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char *output = argv[optind];
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int socketfd = ipc_open_socket(socket_path);
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free(socket_path);
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if (!capture) {
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grab_and_apply_magick(file, output, socketfd);
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} else {
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sway_abort("Capture is not yet supported");
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}
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close(socketfd);
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return 0;
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}
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