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Unified Diff: third_party/ots/test/side-by-side.cc

Issue 951673002: Revert "Pull chromium at 2c3ffb2355a27c32f45e508ef861416b820c823b" (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 10 months ago
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Index: third_party/ots/test/side-by-side.cc
diff --git a/third_party/ots/test/side-by-side.cc b/third_party/ots/test/side-by-side.cc
deleted file mode 100644
index 9034a7c565ca058152a1451aa22e86f70f622e65..0000000000000000000000000000000000000000
--- a/third_party/ots/test/side-by-side.cc
+++ /dev/null
@@ -1,281 +0,0 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <fcntl.h>
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_OUTLINE_H
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-
-#include "opentype-sanitiser.h"
-#include "ots-memory-stream.h"
-
-namespace {
-
-void DumpBitmap(const FT_Bitmap *bitmap) {
- for (int i = 0; i < bitmap->rows * bitmap->width; ++i) {
- if (bitmap->buffer[i] > 192) {
- std::fprintf(stderr, "#");
- } else if (bitmap->buffer[i] > 128) {
- std::fprintf(stderr, "*");
- } else if (bitmap->buffer[i] > 64) {
- std::fprintf(stderr, "+");
- } else if (bitmap->buffer[i] > 32) {
- std::fprintf(stderr, ".");
- } else {
- std::fprintf(stderr, " ");
- }
-
- if ((i + 1) % bitmap->width == 0) {
- std::fprintf(stderr, "\n");
- }
- }
-}
-
-int CompareBitmaps(const FT_Bitmap *orig, const FT_Bitmap *trans) {
- int ret = 0;
-
- if (orig->width == trans->width &&
- orig->rows == trans->rows) {
- for (int i = 0; i < orig->rows * orig->width; ++i) {
- if (orig->buffer[i] != trans->buffer[i]) {
- std::fprintf(stderr, "bitmap data doesn't match!\n");
- ret = 1;
- break;
- }
- }
- } else {
- std::fprintf(stderr, "bitmap metrics doesn't match! (%d, %d), (%d, %d)\n",
- orig->width, orig->rows, trans->width, trans->rows);
- ret = 1;
- }
-
- if (ret) {
- std::fprintf(stderr, "EXPECTED:\n");
- DumpBitmap(orig);
- std::fprintf(stderr, "\nACTUAL:\n");
- DumpBitmap(trans);
- std::fprintf(stderr, "\n\n");
- }
-
- delete[] orig->buffer;
- delete[] trans->buffer;
- return ret;
-}
-
-int GetBitmap(FT_Library library, FT_Outline *outline, FT_Bitmap *bitmap) {
- FT_BBox bbox;
- FT_Outline_Get_CBox(outline, &bbox);
-
- bbox.xMin &= ~63;
- bbox.yMin &= ~63;
- bbox.xMax = (bbox.xMax + 63) & ~63;
- bbox.yMax = (bbox.yMax + 63) & ~63;
- FT_Outline_Translate(outline, -bbox.xMin, -bbox.yMin);
-
- const int w = (bbox.xMax - bbox.xMin) >> 6;
- const int h = (bbox.yMax - bbox.yMin) >> 6;
-
- if (w == 0 || h == 0) {
- return -1; // white space
- }
- if (w < 0 || h < 0) {
- std::fprintf(stderr, "bad width/height\n");
- return 1; // error
- }
-
- uint8_t *buf = new uint8_t[w * h];
- std::memset(buf, 0x0, w * h);
-
- bitmap->width = w;
- bitmap->rows = h;
- bitmap->pitch = w;
- bitmap->buffer = buf;
- bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;
- bitmap->num_grays = 256;
- if (FT_Outline_Get_Bitmap(library, outline, bitmap)) {
- std::fprintf(stderr, "can't get outline\n");
- delete[] buf;
- return 1; // error.
- }
-
- return 0;
-}
-
-int LoadChar(FT_Face face, bool use_bitmap, int pt, FT_ULong c) {
- static const int kDpi = 72;
-
- FT_Matrix matrix;
- matrix.xx = matrix.yy = 1 << 16;
- matrix.xy = matrix.yx = 0 << 16;
-
- FT_Int32 flags = FT_LOAD_DEFAULT | FT_LOAD_TARGET_NORMAL;
- if (!use_bitmap) {
- // Since the transcoder drops embedded bitmaps from the transcoded one,
- // we have to use FT_LOAD_NO_BITMAP flag for the original face.
- flags |= FT_LOAD_NO_BITMAP;
- }
-
- FT_Error error = FT_Set_Char_Size(face, pt * (1 << 6), 0, kDpi, 0);
- if (error) {
- std::fprintf(stderr, "Failed to set the char size!\n");
- return 1;
- }
-
- FT_Set_Transform(face, &matrix, 0);
-
- error = FT_Load_Char(face, c, flags);
- if (error) return -1; // no such glyf in the font.
-
- if (face->glyph->format != FT_GLYPH_FORMAT_OUTLINE) {
- std::fprintf(stderr, "bad format\n");
- return 1;
- }
-
- return 0;
-}
-
-int LoadCharThenCompare(FT_Library library,
- FT_Face orig_face, FT_Face trans_face,
- int pt, FT_ULong c) {
- FT_Bitmap orig_bitmap, trans_bitmap;
-
- // Load original bitmap.
- int ret = LoadChar(orig_face, false, pt, c);
- if (ret) return ret; // 1: error, -1: no such glyph
-
- FT_Outline *outline = &orig_face->glyph->outline;
- ret = GetBitmap(library, outline, &orig_bitmap);
- if (ret) return ret; // white space?
-
- // Load transformed bitmap.
- ret = LoadChar(trans_face, true, pt, c);
- if (ret == -1) {
- std::fprintf(stderr, "the glyph is not found on the transcoded font\n");
- }
- if (ret) return 1; // -1 should be treated as error.
- outline = &trans_face->glyph->outline;
- ret = GetBitmap(library, outline, &trans_bitmap);
- if (ret) return ret; // white space?
-
- return CompareBitmaps(&orig_bitmap, &trans_bitmap);
-}
-
-int SideBySide(FT_Library library, const char *file_name,
- uint8_t *orig_font, size_t orig_len,
- uint8_t *trans_font, size_t trans_len) {
- FT_Face orig_face;
- FT_Error error
- = FT_New_Memory_Face(library, orig_font, orig_len, 0, &orig_face);
- if (error) {
- std::fprintf(stderr, "Failed to open the original font: %s!\n", file_name);
- return 1;
- }
-
- FT_Face trans_face;
- error = FT_New_Memory_Face(library, trans_font, trans_len, 0, &trans_face);
- if (error) {
- std::fprintf(stderr, "Failed to open the transcoded font: %s!\n",
- file_name);
- return 1;
- }
-
- static const int kPts[] = {100, 20, 18, 16, 12, 10, 8}; // pt
- static const size_t kPtsLen = sizeof(kPts) / sizeof(kPts[0]);
-
- static const int kUnicodeRanges[] = {
- 0x0020, 0x007E, // Basic Latin (ASCII)
- 0x00A1, 0x017F, // Latin-1
- 0x1100, 0x11FF, // Hangul
- 0x3040, 0x309F, // Japanese HIRAGANA letters
- 0x3130, 0x318F, // Hangul
- 0x4E00, 0x4F00, // CJK Kanji/Hanja
- 0xAC00, 0xAD00, // Hangul
- };
- static const size_t kUnicodeRangesLen
- = sizeof(kUnicodeRanges) / sizeof(kUnicodeRanges[0]);
-
- for (size_t i = 0; i < kPtsLen; ++i) {
- for (size_t j = 0; j < kUnicodeRangesLen; j += 2) {
- for (int k = 0; k <= kUnicodeRanges[j + 1] - kUnicodeRanges[j]; ++k) {
- int ret = LoadCharThenCompare(library, orig_face, trans_face,
- kPts[i],
- kUnicodeRanges[j] + k);
- if (ret > 0) {
- std::fprintf(stderr, "Glyph mismatch! (file: %s, U+%04x, %dpt)!\n",
- file_name, kUnicodeRanges[j] + k, kPts[i]);
- return 1;
- }
- }
- }
- }
-
- return 0;
-}
-
-} // namespace
-
-int main(int argc, char **argv) {
- if (argc != 2) {
- std::fprintf(stderr, "Usage: %s ttf_or_otf_filename\n", argv[0]);
- return 1;
- }
-
- // load the font to memory.
- const int fd = ::open(argv[1], O_RDONLY);
- if (fd < 0) {
- ::perror("open");
- return 1;
- }
-
- struct stat st;
- ::fstat(fd, &st);
- const off_t orig_len = st.st_size;
-
- uint8_t *orig_font = new uint8_t[orig_len];
- if (::read(fd, orig_font, orig_len) != orig_len) {
- std::fprintf(stderr, "Failed to read file!\n");
- return 1;
- }
- ::close(fd);
-
- // check if FreeType2 can open the original font.
- FT_Library library;
- FT_Error error = FT_Init_FreeType(&library);
- if (error) {
- std::fprintf(stderr, "Failed to initialize FreeType2!\n");
- return 1;
- }
- FT_Face dummy;
- error = FT_New_Memory_Face(library, orig_font, orig_len, 0, &dummy);
- if (error) {
- std::fprintf(stderr, "Failed to open the original font with FT2! %s\n",
- argv[1]);
- return 1;
- }
-
- // transcode the original font.
- static const size_t kPadLen = 20 * 1024;
- uint8_t *trans_font = new uint8_t[orig_len + kPadLen];
- ots::MemoryStream output(trans_font, orig_len + kPadLen);
- ots::OTSContext context;
-
- bool result = context.Process(&output, orig_font, orig_len);
- if (!result) {
- std::fprintf(stderr, "Failed to sanitise file! %s\n", argv[1]);
- return 1;
- }
- const size_t trans_len = output.Tell();
-
- // perform side-by-side tests.
- return SideBySide(library, argv[1],
- orig_font, orig_len,
- trans_font, trans_len);
-}
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