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This commit is contained in:
Ebrahim Byagowi 2018-10-21 11:46:51 +03:30 committed by Khaled Hosny
parent 44f79b4bf8
commit 37ba2413c1
3 changed files with 25 additions and 22 deletions
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10
src/hb-ot-color-cpal-table.hh
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@ -115,17 +115,17 @@ struct CPAL
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
if (unlikely (!(c->check_struct (this) && // it checks colorRecordIndices also
// see #get_size
if (unlikely (!(c->check_struct (this) && /* it checks colorRecordIndices also
* See #get_size */
(this+colorRecordsZ).sanitize (c, numColorRecords))))
return_trace (false);
// Check for indices sanity so no need for doing it runtime
/* Check for indices sanity so no need for doing it runtime */
for (unsigned int i = 0; i < numPalettes; ++i)
if (unlikely (colorRecordIndicesZ[i] + numPaletteEntries > numColorRecords))
return_trace (false);
// If version is zero, we are done here; otherwise we need to check tail also
/* If version is zero, we are done here; otherwise we need to check tail also */
if (version == 0)
return_trace (true);
@ -177,7 +177,7 @@ struct CPAL
if (unlikely (color_index >= numPaletteEntries || palette >= numPalettes))
return false;
// No need for more range check as it is already done on #sanitize
/* No need for more range check as it is already done on #sanitize */
const UnsizedArrayOf<BGRAColor>& color_records = this+colorRecordsZ;
if (color)
*color = color_records[colorRecordIndicesZ[palette] + color_index];

19
src/hb-ot-color.cc
View File

@ -121,7 +121,7 @@ hb_ot_color_get_palette_name_id (hb_face_t *face, unsigned int palette)
* @face: a font face.
* @palette_entry:
*
* Returns: Name ID associated with an palette entry, e.g. eye color
* Returns: Name ID associated with a palette entry, e.g. eye color
*
* Since: REPLACEME
*/
@ -162,20 +162,22 @@ unsigned int
hb_ot_color_get_palette_colors (hb_face_t *face,
unsigned int palette, /* default=0 */
unsigned int start_offset,
unsigned int *count /* IN/OUT. May be NULL. */,
unsigned int *colors_count /* IN/OUT. May be NULL. */,
hb_color_t *colors /* OUT. May be NULL. */)
{
const OT::CPAL& cpal = _get_cpal(face);
if (unlikely (palette >= cpal.get_palette_count ()))
{
if (count) *count = 0;
if (colors_count) *colors_count = 0;
return 0;
}
unsigned int num_results = 0;
if (count)
if (colors_count)
{
unsigned int platte_count = MIN<unsigned int>(*count, cpal.get_palette_entries_count () - start_offset);
unsigned int platte_count;
platte_count = MIN<unsigned int>(*colors_count,
cpal.get_palette_entries_count () - start_offset);
for (unsigned int i = 0; i < platte_count; i++)
{
if (cpal.get_color_record_argb(start_offset + i, palette, &colors[num_results]))
@ -183,12 +185,13 @@ hb_ot_color_get_palette_colors (hb_face_t *face,
}
}
if (likely (count)) *count = num_results;
if (likely (colors_count)) *colors_count = num_results;
return cpal.get_palette_entries_count ();
}
/**
* hb_ot_color_get_color_layers:
* @face: a font face.
* @gid:
* @start_offset:
* @count: (inout) (optional):
@ -203,8 +206,8 @@ unsigned int
hb_ot_color_get_color_layers (hb_face_t *face,
hb_codepoint_t gid,
unsigned int start_offset,
unsigned int *count, /* IN/OUT. May be NULL. */
hb_codepoint_t *gids, /* OUT. May be NULL. */
unsigned int *count /* IN/OUT. May be NULL. */,
hb_codepoint_t *gids /* OUT. May be NULL. */,
unsigned int *color_indices /* OUT. May be NULL. */)
{
const OT::COLR& colr = _get_colr (face);

12
src/hb-ot-color.h
View File

@ -57,16 +57,16 @@ HB_EXTERN unsigned int
hb_ot_color_get_palette_colors (hb_face_t *face,
unsigned int palette, /* default=0 */
unsigned int start_offset,
unsigned int *color_count /* IN/OUT */,
hb_color_t *colors /* OUT */);
unsigned int *color_count /* IN/OUT. May be NULL. */,
hb_color_t *colors /* OUT. May be NULL. */);
HB_EXTERN unsigned int
hb_ot_color_get_color_layers (hb_face_t *face,
hb_codepoint_t gid,
unsigned int offset,
unsigned int *count, /* IN/OUT */
hb_codepoint_t *gids, /* OUT */
unsigned int *color_indices /* OUT */);
unsigned int start_offset,
unsigned int *count /* IN/OUT. May be NULL. */,
hb_codepoint_t *gids /* OUT. May be NULL. */,
unsigned int *color_indices /* OUT. May be NULL. */);
/**
* hb_ot_color_palette_flags_t: