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[benchmark-subset] Cache (preprocessed) face amongst runs

This commit is contained in:
Behdad Esfahbod 2022-12-02 17:45:01 -07:00
parent 3fb4ea29cd
commit 29903f46b9
1 changed files with 14 additions and 1 deletions
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15
perf/benchmark-subset.cc
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@ -123,7 +123,12 @@ static void BM_subset (benchmark::State &state,
{
unsigned subset_size = state.range(0);
hb_face_t *face;
hb_face_t *face = nullptr;
static hb_face_t *cached_face;
static const char *cached_font_path;
if (!cached_font_path || strcmp (cached_font_path, test_input.font_path))
{
hb_blob_t *blob = hb_blob_create_from_file_or_fail (test_input.font_path);
assert (blob);
@ -131,7 +136,15 @@ static void BM_subset (benchmark::State &state,
hb_blob_destroy (blob);
face = preprocess_face (face);
if (cached_face)
hb_face_destroy (cached_face);
cached_face = hb_face_reference (face);
cached_font_path = test_input.font_path;
}
else
face = hb_face_reference (cached_face);
hb_subset_input_t* input = hb_subset_input_create_or_fail ();
assert (input);