mirror of https://gitee.com/openkylin/qemu.git
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
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* QEMU EDID test tool.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu/bswap.h"
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#include "qemu/cutils.h"
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#include "hw/display/edid.h"
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static qemu_edid_info info = {
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.prefx = 1024,
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.prefy = 768,
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};
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static void usage(FILE *out)
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{
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fprintf(out,
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"\n"
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"This is a test tool for the qemu edid generator.\n"
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"\n"
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"Typically you'll pipe the output into edid-decode\n"
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"to check if the generator works correctly.\n"
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"\n"
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"usage: qemu-edid <options>\n"
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"options:\n"
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" -h print this text\n"
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" -o <file> set output file (stdout by default)\n"
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" -v <vendor> set monitor vendor (three letters)\n"
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" -n <name> set monitor name\n"
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" -s <serial> set monitor serial\n"
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" -d <dpi> set display resolution\n"
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" -x <prefx> set preferred width\n"
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" -y <prefy> set preferred height\n"
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" -X <maxx> set maximum width\n"
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" -Y <maxy> set maximum height\n"
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"\n");
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}
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int main(int argc, char *argv[])
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{
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FILE *outfile = NULL;
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uint8_t blob[512];
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size_t size;
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uint32_t dpi = 100;
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int rc;
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for (;;) {
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rc = getopt(argc, argv, "ho:x:y:X:Y:d:v:n:s:");
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if (rc == -1) {
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break;
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}
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switch (rc) {
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case 'o':
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if (outfile) {
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fprintf(stderr, "outfile specified twice\n");
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exit(1);
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}
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outfile = fopen(optarg, "w");
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if (outfile == NULL) {
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fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
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exit(1);
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}
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break;
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case 'x':
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if (qemu_strtoui(optarg, NULL, 10, &info.prefx) < 0) {
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fprintf(stderr, "not a number: %s\n", optarg);
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exit(1);
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}
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break;
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case 'y':
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if (qemu_strtoui(optarg, NULL, 10, &info.prefy) < 0) {
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fprintf(stderr, "not a number: %s\n", optarg);
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exit(1);
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}
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break;
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case 'X':
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if (qemu_strtoui(optarg, NULL, 10, &info.maxx) < 0) {
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fprintf(stderr, "not a number: %s\n", optarg);
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exit(1);
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}
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break;
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case 'Y':
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if (qemu_strtoui(optarg, NULL, 10, &info.maxy) < 0) {
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fprintf(stderr, "not a number: %s\n", optarg);
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exit(1);
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}
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break;
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case 'd':
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if (qemu_strtoui(optarg, NULL, 10, &dpi) < 0) {
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fprintf(stderr, "not a number: %s\n", optarg);
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exit(1);
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}
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break;
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case 'v':
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info.vendor = optarg;
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break;
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case 'n':
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info.name = optarg;
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break;
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case 's':
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info.serial = optarg;
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break;
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case 'h':
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usage(stdout);
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exit(0);
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default:
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usage(stderr);
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exit(1);
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}
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}
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if (outfile == NULL) {
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outfile = stdout;
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}
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info.width_mm = qemu_edid_dpi_to_mm(dpi, info.prefx);
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info.height_mm = qemu_edid_dpi_to_mm(dpi, info.prefy);
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memset(blob, 0, sizeof(blob));
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qemu_edid_generate(blob, sizeof(blob), &info);
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size = qemu_edid_size(blob);
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fwrite(blob, size, 1, outfile);
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fflush(outfile);
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exit(0);
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}
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