62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "hb-private.hh"
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#include "hb-blob.h"
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int
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main (int argc, char **argv)
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{
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int exit_code = 0;
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int fd = open("/tmp/Lobster-Regular.ttf", O_RDONLY);
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if (fd == -1) {
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perror("Unable to open file");
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exit(1);
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}
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void *mapped_file = MAP_FAILED;
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char *raw_font = nullptr;
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struct stat stat;
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if (fstat(fd, &stat) != -1) {
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printf("File is %zu bytes\n", stat.st_size);
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void *mapped_file = mmap(NULL, stat.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (mapped_file != MAP_FAILED) {
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raw_font = static_cast<char*>(mapped_file);
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} else {
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perror("Failed to map file");
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}
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} else {
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perror("Unable to fstat");
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}
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if (raw_font) {
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printf("Mapped file\n");
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for (int i = 0; i < 4; i++) {
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printf("%02x", *(raw_font + i));
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}
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printf("\n");
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hb_blob_t *font_blob = hb_blob_create(raw_font, stat.st_size, HB_MEMORY_MODE_READONLY, nullptr, nullptr);
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}
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if (mapped_file != MAP_FAILED) {
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if (munmap(mapped_file, stat.st_size) == -1) {
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perror("Unable to unmap file");
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exit_code = 1;
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}
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}
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if (close(fd) == -1) {
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perror("Unable to close file");
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exit_code = 1;
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}
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return exit_code;
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}
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