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[ot-shape-normalize] Move buffer out of hb_ot_shape_normalize_context_t

This commit is contained in:
Behdad Esfahbod 2021-08-23 23:44:55 -06:00
parent 10da9fd20d
commit 8cdbea5580
2 changed files with 18 additions and 15 deletions
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32
src/hb-ot-shape-normalize.cc
View File

@ -122,10 +122,12 @@ skip_char (hb_buffer_t *buffer)
/* Returns 0 if didn't decompose, number of resulting characters otherwise. */
static inline unsigned int
decompose (const hb_ot_shape_normalize_context_t *c, bool shortest, hb_codepoint_t ab)
decompose (const hb_ot_shape_normalize_context_t *c,
hb_buffer_t *buffer,
bool shortest,
hb_codepoint_t ab)
{
hb_codepoint_t a = 0, b = 0, a_glyph = 0, b_glyph = 0;
hb_buffer_t * const buffer = c->buffer;
hb_font_t * const font = c->font;
if (!c->decompose (c, ab, &a, &b) ||
@ -144,7 +146,7 @@ decompose (const hb_ot_shape_normalize_context_t *c, bool shortest, hb_codepoint
}
unsigned int ret;
if ((ret = decompose (c, shortest, a))) {
if ((ret = decompose (c, buffer, shortest, a))) {
if (b) {
output_char (buffer, b, b_glyph);
return ret + 1;
@ -165,9 +167,10 @@ decompose (const hb_ot_shape_normalize_context_t *c, bool shortest, hb_codepoint
}
static inline void
decompose_current_character (const hb_ot_shape_normalize_context_t *c, bool shortest)
decompose_current_character (const hb_ot_shape_normalize_context_t *c,
hb_buffer_t *buffer,
bool shortest)
{
hb_buffer_t * const buffer = c->buffer;
hb_codepoint_t u = buffer->cur().codepoint;
hb_codepoint_t glyph = 0;
@ -177,7 +180,7 @@ decompose_current_character (const hb_ot_shape_normalize_context_t *c, bool shor
return;
}
if (decompose (c, shortest, u))
if (decompose (c, buffer, shortest, u))
{
skip_char (buffer);
return;
@ -219,11 +222,11 @@ decompose_current_character (const hb_ot_shape_normalize_context_t *c, bool shor
static inline void
handle_variation_selector_cluster (const hb_ot_shape_normalize_context_t *c,
hb_buffer_t *buffer,
unsigned int end,
bool short_circuit HB_UNUSED)
{
/* TODO Currently if there's a variation-selector we give-up, it's just too hard. */
hb_buffer_t * const buffer = c->buffer;
hb_font_t * const font = c->font;
for (; buffer->idx < end - 1 && buffer->successful;) {
if (unlikely (buffer->unicode->is_variation_selector (buffer->cur(+1).codepoint))) {
@ -263,17 +266,19 @@ handle_variation_selector_cluster (const hb_ot_shape_normalize_context_t *c,
}
static inline void
decompose_multi_char_cluster (const hb_ot_shape_normalize_context_t *c, unsigned int end, bool short_circuit)
decompose_multi_char_cluster (const hb_ot_shape_normalize_context_t *c,
hb_buffer_t *buffer,
unsigned int end,
bool short_circuit)
{
hb_buffer_t * const buffer = c->buffer;
for (unsigned int i = buffer->idx; i < end && buffer->successful; i++)
if (unlikely (buffer->unicode->is_variation_selector (buffer->info[i].codepoint))) {
handle_variation_selector_cluster (c, end, short_circuit);
handle_variation_selector_cluster (c, buffer, end, short_circuit);
return;
}
while (buffer->idx < end && buffer->successful)
decompose_current_character (c, short_circuit);
decompose_current_character (c, buffer, short_circuit);
}
@ -309,7 +314,6 @@ _hb_ot_shape_normalize (const hb_ot_shape_plan_t *plan,
const hb_ot_shape_normalize_context_t c = {
plan,
buffer,
font,
buffer->unicode,
plan->shaper->decompose ? plan->shaper->decompose : decompose_unicode,
@ -357,7 +361,7 @@ _hb_ot_shape_normalize (const hb_ot_shape_plan_t *plan,
if (unlikely (!buffer->next_glyphs (done))) break;
}
while (buffer->idx < end && buffer->successful)
decompose_current_character (&c, might_short_circuit);
decompose_current_character (&c, buffer, might_short_circuit);
if (buffer->idx == count || !buffer->successful)
break;
@ -370,7 +374,7 @@ _hb_ot_shape_normalize (const hb_ot_shape_plan_t *plan,
break;
/* idx to end is one non-simple cluster. */
decompose_multi_char_cluster (&c, end, always_short_circuit);
decompose_multi_char_cluster (&c, buffer, end, always_short_circuit);
}
while (buffer->idx < count && buffer->successful);
buffer->swap_buffers ();

1
src/hb-ot-shape-normalize.hh
View File

@ -53,7 +53,6 @@ HB_INTERNAL void _hb_ot_shape_normalize (const hb_ot_shape_plan_t *shaper,
struct hb_ot_shape_normalize_context_t
{
const hb_ot_shape_plan_t *plan;
hb_buffer_t *buffer;
hb_font_t *font;
hb_unicode_funcs_t *unicode;
bool (*decompose) (const hb_ot_shape_normalize_context_t *c,