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make shaping unit test test something (work-in-progress)

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This commit is contained in:
artemp 2017-02-20 12:13:00 +01:00
parent d9c81d46fd
commit 3584970fee
1 changed files with 57 additions and 15 deletions
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52
test/unit/text/shaping.cpp
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@ -1,25 +1,67 @@
#include "catch.hpp"
#include <mapnik/text/icu_shaper.hpp>
#include <mapnik/text/harfbuzz_shaper.hpp>
#include <mapnik/text/font_library.hpp>
#include <mapnik/unicode.hpp>
TEST_CASE("shapers compile") {
mapnik::text_line line(0,0);
mapnik::text_itemizer itemizer;
TEST_CASE("shaping")
{
mapnik::freetype_engine::register_fonts("test/data/fonts/Noto");
mapnik::freetype_engine::register_font("test/data/fonts/NotoSans-Regular.ttc");
mapnik::font_set fontset("fontset");
for (auto const& name : mapnik::freetype_engine::face_names())
{
fontset.add_face_name(name);
}
mapnik::transcoder tr("utf8");
std::map<unsigned,double> width_map;
double scale_factor = 1;
mapnik::font_library fl;
mapnik::freetype_engine::font_file_mapping_type font_file_mapping;
mapnik::freetype_engine::font_memory_cache_type font_memory_cache;
mapnik::face_manager fm(fl, font_file_mapping, font_memory_cache);
mapnik::text_itemizer itemizer;
auto props = std::make_unique<mapnik::detail::evaluated_format_properties>();
props->fontset = fontset;
props->text_size = 64;
std::vector<std::tuple<unsigned, unsigned>> expected =
{{0, 0}, {0, 3}, {0, 4}, {0, 7}, {3, 8}, {11, 9}, {0, 10}, {0, 11}, {0, 12}, {12, 13}};
// with default NotoSans-Regular.ttc and NotoNaskhArabic-Regular.ttf ^^^
//std::vector<std::tuple<unsigned, unsigned>> expected =
// {{977,0},{1094,3}{1038,4},{1168,4},{9,7},{3,8},{9,9},{20827,10},{11294,11},{42895,12},{10,13}};
// expected results if NotoSansCJKjp-Regular.otf and "NotoSansTibetan-Regular.ttf available and registered^^
auto ustr = tr.transcode("སྤུ་ཧྲེང (普兰镇)");
auto length = ustr.length();
itemizer.add_text(ustr, props);
{
mapnik::text_line line(0, length);
mapnik::harfbuzz_shaper::shape_text(line, itemizer,
width_map,
fm,
scale_factor);
std::size_t index = 0;
for (auto const& g : line)
{
unsigned glyph_index, char_index;
std::tie(glyph_index, char_index) = expected[index++];
//std::cerr << g.glyph_index << ":" << g.char_index << std::endl;
REQUIRE(glyph_index == g.glyph_index);
REQUIRE(char_index == g.char_index);
}
}
#if 0
{
mapnik::text_line line(0, length);
mapnik::icu_shaper::shape_text(line,itemizer,
width_map,
fm,
scale_factor);
}
#endif
}