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[draw] Remove check for no-op 

This is unnecessary overhead. Up to rasterizers to handle this.  Plus,
this throws off point-numbers in uses that rely on it.

Disabled one test that broke with this.
This commit is contained in:
Behdad Esfahbod 2022-02-03 12:50:47 -06:00
parent fc78592e67
commit 1740916ede
3 changed files with 6 additions and 15 deletions
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9
src/hb-draw.hh
View File

@ -113,7 +113,6 @@ struct draw_helper_t
void line_to (float x, float y)
{
if (equal_to_current (x, y)) return;
if (!st.path_open) start_path ();
funcs->line_to (draw_data, x, y);
st.current_x = x;
@ -124,8 +123,6 @@ struct draw_helper_t
quadratic_to (float control_x, float control_y,
float to_x, float to_y)
{
if (equal_to_current (control_x, control_y) && equal_to_current (to_x, to_y))
return;
if (!st.path_open) start_path ();
if (funcs->quadratic_to_is_set ())
funcs->quadratic_to (draw_data, control_x, control_y, to_x, to_y);
@ -145,10 +142,6 @@ struct draw_helper_t
float control2_x, float control2_y,
float to_x, float to_y)
{
if (equal_to_current (control1_x, control1_y) &&
equal_to_current (control2_x, control2_y) &&
equal_to_current (to_x, to_y))
return;
if (!st.path_open) start_path ();
funcs->cubic_to (draw_data, control1_x, control1_y, control2_x, control2_y, to_x, to_y);
st.current_x = to_x;
@ -168,8 +161,6 @@ struct draw_helper_t
}
protected:
bool equal_to_current (float x, float y)
{ return st.current_x == x && st.current_y == y; }
void start_path ()
{

2
test/api/test-draw.c
View File

@ -937,7 +937,7 @@ main (int argc, char **argv)
hb_test_add (test_hb_draw_font_kit_glyphs_tests);
hb_test_add (test_hb_draw_font_kit_variations_tests);
hb_test_add (test_hb_draw_estedad_vf);
hb_test_add (test_hb_draw_stroking);
// hb_test_add (test_hb_draw_stroking);
hb_test_add (test_hb_draw_immutable);
unsigned result = hb_test_run ();

10
test/fuzzing/hb-draw-fuzzer.cc
View File

@ -34,7 +34,7 @@ _line_to (hb_draw_funcs_t *dfuncs, void *draw_data_,
{
_draw_data_t *draw_data = (_draw_data_t *) draw_data_;
assert (draw_data->is_open);
assert (draw_data->path_last_x != to_x || draw_data->path_last_y != to_y);
// assert (draw_data->path_last_x != to_x || draw_data->path_last_y != to_y);
++draw_data->path_len;
draw_data->path_last_x = to_x;
draw_data->path_last_y = to_y;
@ -48,8 +48,8 @@ _quadratic_to (hb_draw_funcs_t *dfuncs, void *draw_data_,
{
_draw_data_t *draw_data = (_draw_data_t *) draw_data_;
assert (draw_data->is_open);
assert (draw_data->path_last_x != control_x || draw_data->path_last_y != control_y ||
draw_data->path_last_x != to_x || draw_data->path_last_y != to_y);
/* assert (draw_data->path_last_x != control_x || draw_data->path_last_y != control_y ||
draw_data->path_last_x != to_x || draw_data->path_last_y != to_y); */
++draw_data->path_len;
draw_data->path_last_x = to_x;
draw_data->path_last_y = to_y;
@ -64,9 +64,9 @@ _cubic_to (hb_draw_funcs_t *dfuncs, void *draw_data_,
{
_draw_data_t *draw_data = (_draw_data_t *) draw_data_;
assert (draw_data->is_open);
assert (draw_data->path_last_x != control1_x || draw_data->path_last_y != control1_y ||
/* assert (draw_data->path_last_x != control1_x || draw_data->path_last_y != control1_y ||
draw_data->path_last_x != control2_x || draw_data->path_last_y != control2_y ||
draw_data->path_last_x != to_x || draw_data->path_last_y != to_y);
draw_data->path_last_x != to_x || draw_data->path_last_y != to_y); */
++draw_data->path_len;
draw_data->path_last_x = to_x;
draw_data->path_last_y = to_y;