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More scratch-buffer cleanup

This commit is contained in:
Behdad Esfahbod 2013-11-13 14:44:01 -05:00
parent 8fcadb9cf9
commit 68c372ed2e
5 changed files with 24 additions and 26 deletions
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3
src/hb-buffer-private.hh
View File

@ -186,7 +186,8 @@ struct hb_buffer_t {
HB_INTERNAL bool make_room_for (unsigned int num_in, unsigned int num_out);
HB_INTERNAL bool shift_forward (unsigned int count);
HB_INTERNAL int *get_scratch_buffer (unsigned int *int_size);
typedef int scratch_buffer_t;
HB_INTERNAL scratch_buffer_t *get_scratch_buffer (unsigned int *size);
inline void clear_context (unsigned int side) { context_len[side] = 0; }
};

10
src/hb-buffer.cc
View File

@ -152,8 +152,8 @@ hb_buffer_t::shift_forward (unsigned int count)
return true;
}
int *
hb_buffer_t::get_scratch_buffer (unsigned int *int_size)
hb_buffer_t::scratch_buffer_t *
hb_buffer_t::get_scratch_buffer (unsigned int *size)
{
have_output = false;
have_positions = false;
@ -161,9 +161,9 @@ hb_buffer_t::get_scratch_buffer (unsigned int *int_size)
out_len = 0;
out_info = info;
ASSERT_STATIC (sizeof (pos[0]) % sizeof (int) == 0);
*int_size = allocated * (sizeof (pos[0]) / sizeof (int));
return (int *) pos;
ASSERT_STATIC (sizeof (pos[0]) % sizeof (scratch_buffer_t) == 0);
*size = allocated * sizeof (pos[0]) / sizeof (scratch_buffer_t);
return (scratch_buffer_t *) pos;
}

5
src/hb-coretext.cc
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@ -553,7 +553,7 @@ _hb_coretext_shape (hb_shape_plan_t *shape_plan,
} HB_STMT_END;
unsigned int scratch_size;
int *scratch = buffer->get_scratch_buffer (&scratch_size);
hb_buffer_t::scratch_buffer_t *scratch = buffer->get_scratch_buffer (&scratch_size);
#define ALLOCATE_ARRAY(Type, name, len) \
Type *name = (Type *) scratch; \
@ -657,8 +657,7 @@ _hb_coretext_shape (hb_shape_plan_t *shape_plan,
buffer->ensure (buffer->len + num_glyphs);
unsigned int scratch_size;
int *scratch = buffer->get_scratch_buffer (&scratch_size);
scratch = buffer->get_scratch_buffer (&scratch_size);
/* Testing indicates that CTRunGetGlyphsPtr, etc (almost?) always
* succeed, and so copying data to our own buffer will be rare. */

2
src/hb-graphite2.cc
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@ -243,7 +243,7 @@ _hb_graphite2_shape (hb_shape_plan_t *shape_plan,
float curradvx = 0., curradvy = 0.;
unsigned int scratch_size;
int *scratch = buffer->get_scratch_buffer (&scratch_size);
hb_buffer_t::scratch_buffer_t *scratch = buffer->get_scratch_buffer (&scratch_size);
uint32_t *chars = (uint32_t *) scratch;

30
src/hb-uniscribe.cc
View File

@ -729,13 +729,21 @@ _hb_uniscribe_shape (hb_shape_plan_t *shape_plan,
retry:
unsigned int scratch_size;
int *scratch = buffer->get_scratch_buffer (&scratch_size);
hb_buffer_t::scratch_buffer_t *scratch = buffer->get_scratch_buffer (&scratch_size);
/* Allocate char buffers; they all fit */
#define ALLOCATE_ARRAY(Type, name, len) \
Type *name = (Type *) scratch; \
{ \
unsigned int _consumed = DIV_CEIL ((len) * sizeof (Type), sizeof (*scratch)); \
assert (_consumed <= scratch_size); \
scratch += _consumed; \
scratch_size -= _consumed; \
}
#define utf16_index() var1.u32
WCHAR *pchars = (WCHAR *) scratch;
ALLOCATE_ARRAY (WCHAR, pchars, buffer->len * 2);
unsigned int chars_len = 0;
for (unsigned int i = 0; i < buffer->len; i++)
{
@ -751,16 +759,6 @@ retry:
}
}
#define ALLOCATE_ARRAY(Type, name, len) \
Type *name = (Type *) scratch; \
{ \
unsigned int _consumed = DIV_CEIL ((len) * sizeof (Type), sizeof (*scratch)); \
assert (_consumed <= scratch_size); \
scratch += _consumed; \
scratch_size -= _consumed; \
}
ALLOCATE_ARRAY (WCHAR, wchars, chars_len);
ALLOCATE_ARRAY (WORD, log_clusters, chars_len);
ALLOCATE_ARRAY (SCRIPT_CHARPROP, char_props, chars_len);
@ -817,7 +815,7 @@ retry:
bidi_state.uBidiLevel = HB_DIRECTION_IS_FORWARD (buffer->props.direction) ? 0 : 1;
bidi_state.fOverrideDirection = 1;
hr = funcs->ScriptItemizeOpenType (wchars,
hr = funcs->ScriptItemizeOpenType (pchars,
chars_len,
MAX_ITEMS,
&bidi_control,
@ -892,7 +890,7 @@ retry:
range_char_counts.array,
range_properties.array,
range_properties.len,
wchars + chars_offset,
pchars + chars_offset,
item_chars_len,
glyphs_size - glyphs_offset,
/* out */
@ -934,7 +932,7 @@ retry:
range_char_counts.array,
range_properties.array,
range_properties.len,
wchars + chars_offset,
pchars + chars_offset,
log_clusters + chars_offset,
char_props + chars_offset,
item_chars_len,