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* src/smooth/ftgrays.c (gray_raster_render): Minor tweaks.

This commit is contained in:
Alexei Podtelezhnikov 2016-08-25 22:36:01 -04:00
parent a660e3de42
commit 9a444f0547
2 changed files with 27 additions and 21 deletions
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6
ChangeLog
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@ -1,3 +1,7 @@
2016-08-26 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/smooth/ftgrays.c (gray_raster_render): Minor tweaks.
2016-08-26 Werner Lemberg <wl@gnu.org>
[type1] Fix heap buffer overflow.
@ -32,7 +36,7 @@
This removes unnecessary complexity of span merging and buffering.
Instead, the spans are rendered as they come, speeding up the
rendering by about 5% percents as a result.
rendering by about 5% as a result.
* src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed.
(gray_TWorker): Remove span buffer and related fields.

42
src/smooth/ftgrays.c
View File

@ -1924,12 +1924,18 @@ typedef ptrdiff_t FT_PtrDist;
const FT_Bitmap* target_map = params->target;
FT_BBox cbox, clip;
#ifndef FT_STATIC_RASTER
gray_TWorker worker[1];
#endif
if ( !raster )
return FT_THROW( Invalid_Argument );
/* this version does not support monochrome rendering */
if ( !( params->flags & FT_RASTER_FLAG_AA ) )
return FT_THROW( Invalid_Mode );
if ( !outline )
return FT_THROW( Invalid_Outline );
@ -1944,9 +1950,19 @@ typedef ptrdiff_t FT_PtrDist;
outline->contours[outline->n_contours - 1] + 1 )
return FT_THROW( Invalid_Outline );
/* if direct mode is not set, we must have a target bitmap */
if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) )
ras.outline = *outline;
if ( params->flags & FT_RASTER_FLAG_DIRECT )
{
if ( !params->gray_spans )
return 0;
ras.render_span = (FT_Raster_Span_Func)params->gray_spans;
ras.render_span_data = params->user;
}
else
{
/* if direct mode is not set, we must have a target bitmap */
if ( !target_map )
return FT_THROW( Invalid_Argument );
@ -1956,11 +1972,11 @@ typedef ptrdiff_t FT_PtrDist;
if ( !target_map->buffer )
return FT_THROW( Invalid_Argument );
}
/* this version does not support monochrome rendering */
if ( !( params->flags & FT_RASTER_FLAG_AA ) )
return FT_THROW( Invalid_Mode );
ras.target = *target_map;
ras.render_span = (FT_Raster_Span_Func)gray_render_span;
ras.render_span_data = &ras;
}
FT_Outline_Get_CBox( outline, &cbox );
@ -2006,20 +2022,6 @@ typedef ptrdiff_t FT_PtrDist;
ras.count_ex = ras.max_ex - ras.min_ex;
ras.count_ey = ras.max_ey - ras.min_ey;
ras.outline = *outline;
if ( params->flags & FT_RASTER_FLAG_DIRECT )
{
ras.render_span = (FT_Raster_Span_Func)params->gray_spans;
ras.render_span_data = params->user;
}
else
{
ras.target = *target_map;
ras.render_span = (FT_Raster_Span_Func)gray_render_span;
ras.render_span_data = &ras;
}
return gray_convert_glyph( RAS_VAR );
}