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[perf/benchmark-font] Benchmark get_nominal_glyph

This commit is contained in:
Behdad Esfahbod 2022-05-02 15:57:19 -06:00
parent 03f16fab58
commit 58a0988b57
1 changed files with 30 additions and 7 deletions
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37
perf/benchmark-font.cc
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@ -27,6 +27,7 @@ enum backend_t { HARFBUZZ, FREETYPE };
enum operation_t
{
nominal_glyph,
glyph_extents,
glyph_shape,
};
@ -93,6 +94,25 @@ static void BM_Font (benchmark::State &state,
switch (operation)
{
case nominal_glyph:
{
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));
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_extents:
{
hb_glyph_extents_t extents;
@ -120,6 +140,7 @@ static void test_backend (backend_t backend,
const char *backend_name,
operation_t op,
const char *op_name,
benchmark::TimeUnit time_unit,
const test_input_t &test_input)
{
char name[1024] = "BM_Font/";
@ -129,25 +150,27 @@ static void test_backend (backend_t backend,
strcat (name, strrchr (test_input.font_path, '/'));
benchmark::RegisterBenchmark (name, BM_Font, false, backend, op, test_input)
->Unit(benchmark::kMicrosecond);
->Unit(time_unit);
}
static void test_operation (operation_t op,
const char *op_name)
const char *op_name,
benchmark::TimeUnit time_unit)
{
for (auto& test_input : tests)
{
test_backend (HARFBUZZ, "hb", op, op_name, test_input);
test_backend (FREETYPE, "ft", op, op_name, test_input);
test_backend (HARFBUZZ, "hb", op, op_name, time_unit, test_input);
test_backend (FREETYPE, "ft", op, op_name, time_unit, test_input);
}
}
int main(int argc, char** argv)
{
#define TEST_OPERATION(op) test_operation (op, #op)
#define TEST_OPERATION(op, time_unit) test_operation (op, #op, time_unit)
TEST_OPERATION (glyph_extents);
TEST_OPERATION (glyph_shape);
TEST_OPERATION (nominal_glyph, benchmark::kNanosecond);
TEST_OPERATION (glyph_extents, benchmark::kMicrosecond);
TEST_OPERATION (glyph_shape, benchmark::kMicrosecond);
#undef TEST_OPERATION