Re-write hb-subset utility to use main-font-text driver.
This commit is contained in:
Garret Rieger
Rod Sheeter
parent
ede84ffa42
commit
058b1260ad
@ -38,7 +38,10 @@ def fail_test(test, cli_args, message):
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def run_test(test):
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out_file = os.path.join(tempfile.mkdtemp(), test.get_font_name() + '-subset.ttf')
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cli_args = [hb_subset, test.font_path, out_file, "--unicodes=%s" % test.unicodes()]
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cli_args = [hb_subset,
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"--font-file=" + test.font_path,
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"--output-file=" + out_file,
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"--unicodes=%s" % test.unicodes()]
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_, return_code = cmd(cli_args)
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if return_code:
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@ -31,4 +31,7 @@ HB_OT_SHAPE_CLOSURE_sources = \
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HB_SUBSET_sources = \
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hb-subset.cc \
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options.cc \
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options.hh \
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main-font-text.hh \
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$(NULL)
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@ -1,82 +1,91 @@
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#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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/*
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* Copyright © 2010 Behdad Esfahbod
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* Copyright © 2011,2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Garret Rieger, Rod Sheeter
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*/
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#include "hb-private.hh"
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#include "hb-blob.h"
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#include "main-font-text.hh"
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/*
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* Command line interface to the harfbuzz font subsetter.
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*/
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struct subset_consumer_t
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{
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subset_consumer_t (option_parser_t *parser)
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: failed (false), options(parser) {}
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void init (hb_buffer_t *buffer_,
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const font_options_t *font_opts)
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{
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font = hb_font_reference (font_opts->get_font ());
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}
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void consume_line (const char *text,
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unsigned int text_len,
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const char *text_before,
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const char *text_after)
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{
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}
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void finish (const font_options_t *font_opts)
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{
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hb_face_t *face = hb_font_get_face (font);
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hb_blob_t *result = hb_face_reference_blob (face);
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unsigned int data_length;
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const char* data = hb_blob_get_data (result, &data_length);
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int fd_out = open(options.output_file, O_CREAT | O_WRONLY, S_IRWXU);
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if (fd_out != -1) {
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ssize_t bytes_written = write(fd_out, data, data_length);
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if (bytes_written == -1) {
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fprintf(stderr, "Unable to write output file");
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failed = true;
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} else if (bytes_written != data_length) {
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fprintf(stderr, "Wrong number of bytes written");
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failed = true;
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}
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} else {
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fprintf(stderr, "Unable to open output file");
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failed = true;
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}
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hb_blob_destroy (result);
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hb_font_destroy (font);
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}
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public:
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bool failed;
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private:
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output_options_t options;
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hb_font_t *font;
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};
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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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if (argc != 4) {
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fprintf(stderr, "Must have 4 args\n");
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exit(1);
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}
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int fd = open(argv[1], O_RDONLY);
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if (fd == -1) {
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perror("Unable to open font file");
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exit(1);
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}
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void *mapped_file = MAP_FAILED;
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int fd_out = -1;
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struct stat stat;
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if (fstat(fd, &stat) != -1) {
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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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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 (mapped_file != MAP_FAILED) {
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hb_blob_t *font_blob = hb_blob_create(static_cast<const char*>(mapped_file),
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stat.st_size,
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HB_MEMORY_MODE_READONLY, nullptr,
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nullptr);
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fd_out = open(argv[2], O_CREAT | O_WRONLY, S_IRWXU);
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if (fd_out != -1) {
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ssize_t bytes_written = write(fd_out, mapped_file, stat.st_size);
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if (bytes_written == -1) {
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perror("Unable to write output file");
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exit_code = 1;
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} else if (bytes_written != stat.st_size) {
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fprintf(stderr, "Wrong number of bytes written");
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exit_code = 1;
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}
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} else {
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perror("Unable to open output file");
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exit_code = 1;
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}
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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 (fd_out != -1 && close(fd_out) == -1) {
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perror("Unable to close output file");
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exit_code = 1;
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}
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if (fd != -1 && 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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main_font_text_t<subset_consumer_t, 10, 0> driver;
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return driver.main (argc, argv);
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}
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