harfbuzz/perf/benchmark-font.cc

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#include "benchmark/benchmark.h"
#include <cstring>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "hb.h"
#include "hb-ot.h"
#ifdef HAVE_FREETYPE
#include "hb-ft.h"
#endif
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#define SUBSET_FONT_BASE_PATH "test/subset/data/fonts/"
struct test_input_t
{
bool is_variable;
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const char *font_path;
} tests[] =
{
{true , SUBSET_FONT_BASE_PATH "Roboto-Regular.ttf"},
{false, SUBSET_FONT_BASE_PATH "SourceSansPro-Regular.otf"},
{true , SUBSET_FONT_BASE_PATH "AdobeVFPrototype.otf"},
{true , SUBSET_FONT_BASE_PATH "SourceSerifVariable-Roman.ttf"},
{false, SUBSET_FONT_BASE_PATH "Comfortaa-Regular-new.ttf"},
{false, SUBSET_FONT_BASE_PATH "NotoNastaliqUrdu-Regular.ttf"},
{false, SUBSET_FONT_BASE_PATH "NotoSerifMyanmar-Regular.otf"},
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};
enum backend_t { HARFBUZZ, FREETYPE };
enum operation_t
{
nominal_glyphs,
glyph_h_advances,
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glyph_extents,
glyph_shape,
};
static void
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_hb_move_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, void *) {}
static void
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_hb_line_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, void *) {}
static void
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_hb_quadratic_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, float, float, void *) {}
static void
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_hb_cubic_to (hb_draw_funcs_t *, void *, hb_draw_state_t *, float, float, float, float, float, float, void *) {}
static void
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_hb_close_path (hb_draw_funcs_t *, void *, hb_draw_state_t *, void *) {}
static hb_draw_funcs_t *
_draw_funcs_create (void)
{
hb_draw_funcs_t *draw_funcs = hb_draw_funcs_create ();
hb_draw_funcs_set_move_to_func (draw_funcs, _hb_move_to, nullptr, nullptr);
hb_draw_funcs_set_line_to_func (draw_funcs, _hb_line_to, nullptr, nullptr);
hb_draw_funcs_set_quadratic_to_func (draw_funcs, _hb_quadratic_to, nullptr, nullptr);
hb_draw_funcs_set_cubic_to_func (draw_funcs, _hb_cubic_to, nullptr, nullptr);
hb_draw_funcs_set_close_path_func (draw_funcs, _hb_close_path, nullptr, nullptr);
return draw_funcs;
}
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static void BM_Font (benchmark::State &state,
bool is_var, backend_t backend, operation_t operation,
const test_input_t &test_input)
{
hb_font_t *font;
unsigned num_glyphs;
{
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hb_blob_t *blob = hb_blob_create_from_file_or_fail (test_input.font_path);
assert (blob);
hb_face_t *face = hb_face_create (blob, 0);
hb_blob_destroy (blob);
num_glyphs = hb_face_get_glyph_count (face);
font = hb_font_create (face);
hb_face_destroy (face);
}
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if (is_var)
{
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hb_variation_t wght = {HB_TAG ('w','g','h','t'), 500};
hb_font_set_variations (font, &wght, 1);
}
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switch (backend)
{
case HARFBUZZ:
hb_ot_font_set_funcs (font);
break;
case FREETYPE:
#ifdef HAVE_FREETYPE
hb_ft_font_set_funcs (font);
#endif
break;
}
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switch (operation)
{
case nominal_glyphs:
{
hb_set_t *set = hb_set_create ();
hb_face_collect_unicodes (hb_font_get_face (font), set);
unsigned pop = hb_set_get_population (set);
hb_codepoint_t *unicodes = (hb_codepoint_t *) calloc (pop, sizeof (hb_codepoint_t));
hb_codepoint_t *glyphs = (hb_codepoint_t *) calloc (pop, sizeof (hb_codepoint_t));
hb_codepoint_t *p = unicodes;
for (hb_codepoint_t u = HB_SET_VALUE_INVALID;
hb_set_next (set, &u);)
*p++ = u;
assert (p == unicodes + pop);
for (auto _ : state)
hb_font_get_nominal_glyphs (font,
pop,
unicodes, sizeof (*unicodes),
glyphs, sizeof (*glyphs));
free (glyphs);
free (unicodes);
hb_set_destroy (set);
break;
}
case glyph_h_advances:
{
hb_codepoint_t *glyphs = (hb_codepoint_t *) calloc (num_glyphs, sizeof (hb_codepoint_t));
hb_position_t *advances = (hb_position_t *) calloc (num_glyphs, sizeof (hb_codepoint_t));
for (unsigned g = 0; g < num_glyphs; g++)
glyphs[g] = g;
for (auto _ : state)
hb_font_get_glyph_h_advances (font,
num_glyphs,
glyphs, sizeof (*glyphs),
advances, sizeof (*advances));
free (advances);
free (glyphs);
break;
}
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case glyph_extents:
{
hb_glyph_extents_t extents;
for (auto _ : state)
for (unsigned gid = 0; gid < num_glyphs; ++gid)
hb_font_get_glyph_extents (font, gid, &extents);
break;
}
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case glyph_shape:
{
hb_draw_funcs_t *draw_funcs = _draw_funcs_create ();
for (auto _ : state)
for (unsigned gid = 0; gid < num_glyphs; ++gid)
hb_font_get_glyph_shape (font, gid, draw_funcs, nullptr);
break;
hb_draw_funcs_destroy (draw_funcs);
}
}
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hb_font_destroy (font);
}
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static void test_backend (backend_t backend,
const char *backend_name,
bool variable,
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operation_t op,
const char *op_name,
benchmark::TimeUnit time_unit,
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const test_input_t &test_input)
{
char name[1024] = "BM_Font/";
strcat (name, op_name);
strcat (name, strrchr (test_input.font_path, '/'));
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strcat (name, variable ? "/var" : "");
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strcat (name, "/");
strcat (name, backend_name);
benchmark::RegisterBenchmark (name, BM_Font, variable, backend, op, test_input)
->Unit(time_unit);
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}
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static void test_operation (operation_t op,
const char *op_name,
benchmark::TimeUnit time_unit)
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{
for (auto& test_input : tests)
{
for (int variable = 0; variable < int (test_input.is_variable) + 1; variable++)
{
bool is_var = (bool) variable;
test_backend (HARFBUZZ, "hb", is_var, op, op_name, time_unit, test_input);
#ifdef HAVE_FREETYPE
test_backend (FREETYPE, "ft", is_var, op, op_name, time_unit, test_input);
#endif
}
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}
}
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int main(int argc, char** argv)
{
#define TEST_OPERATION(op, time_unit) test_operation (op, #op, time_unit)
TEST_OPERATION (nominal_glyphs, benchmark::kMicrosecond);
TEST_OPERATION (glyph_h_advances, benchmark::kMicrosecond);
TEST_OPERATION (glyph_extents, benchmark::kMicrosecond);
TEST_OPERATION (glyph_shape, benchmark::kMicrosecond);
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#undef TEST_OPERATION
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benchmark::Initialize(&argc, argv);
benchmark::RunSpecifiedBenchmarks();
benchmark::Shutdown();
}