FT_GlyphLoader_CopyPoints( FT_GlyphLoader target,
FT_GlyphLoader source )
{
FT_Error error;
FT_UInt num_points = source->base.outline.n_points;
FT_UInt num_contours = source->base.outline.n_contours;
error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours );
if ( !error )
{
FT_Outline* out = &target->base.outline;
FT_Outline* in = &source->base.outline;
FT_ARRAY_COPY( out->points, in->points,
num_points );
FT_ARRAY_COPY( out->tags, in->tags,
num_points );
FT_ARRAY_COPY( out->contours, in->contours,
num_contours );
/* do we need to copy the extra points? */
if ( target->use_extra && source->use_extra )
FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points,
num_points );
out->n_points = (short)num_points;
out->n_contours = (short)num_contours;
FT_GlyphLoader_Adjust_Points( target );
}
return error;
}
FT_GlyphLoader_Prepare( FT_GlyphLoader loader )
{
FT_GlyphLoad current = &loader->current;
current->outline.n_points = 0;
current->outline.n_contours = 0;
current->num_subglyphs = 0;
FT_GlyphLoader_Adjust_Points ( loader );
FT_GlyphLoader_Adjust_Subglyphs( loader );
}
FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
FT_UInt n_points,
FT_UInt n_contours )
{
FT_Memory memory = loader->memory;
FT_Error error = FT_Err_Ok;
FT_Outline* base = &loader->base.outline;
FT_Outline* current = &loader->current.outline;
FT_Bool adjust = 0;
FT_UInt new_max, old_max;
/* check points & tags */
new_max = base->n_points + current->n_points + n_points;
old_max = loader->max_points;
if ( new_max > old_max )
{
new_max = FT_PAD_CEIL( new_max, 8 );
if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) ||
FT_RENEW_ARRAY( base->tags, old_max, new_max ) )
goto Exit;
if ( loader->use_extra &&
FT_RENEW_ARRAY( loader->base.extra_points, old_max, new_max ) )
goto Exit;
adjust = 1;
loader->max_points = new_max;
}
/* check contours */
old_max = loader->max_contours;
new_max = base->n_contours + current->n_contours +
n_contours;
if ( new_max > old_max )
{
new_max = FT_PAD_CEIL( new_max, 4 );
if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) )
goto Exit;
adjust = 1;
loader->max_contours = new_max;
}
if ( adjust )
FT_GlyphLoader_Adjust_Points( loader );
Exit:
return error;
}
FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader )
{
FT_Error error;
FT_Memory memory = loader->memory;
if ( !FT_NEW_ARRAY( loader->base.extra_points, loader->max_points ) )
{
loader->use_extra = 1;
FT_GlyphLoader_Adjust_Points( loader );
}
return error;
}
FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
FT_UInt n_points,
FT_UInt n_contours )
{
FT_Memory memory = loader->memory;
FT_Error error = FT_Err_Ok;
FT_Outline* base = &loader->base.outline;
FT_Outline* current = &loader->current.outline;
FT_Bool adjust = 0;
FT_UInt new_max, old_max;
/* check points & tags */
new_max = base->n_points + current->n_points + n_points;
old_max = loader->max_points;
if ( new_max > old_max )
{
new_max = FT_PAD_CEIL( new_max, 8 );
if ( new_max > FT_OUTLINE_POINTS_MAX )
return FT_Err_Array_Too_Large;
if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) ||
FT_RENEW_ARRAY( base->tags, old_max, new_max ) )
goto Exit;
if ( loader->use_extra )
{
if ( FT_RENEW_ARRAY( loader->base.extra_points,
old_max * 2, new_max * 2 ) )
goto Exit;
FT_ARRAY_MOVE( loader->base.extra_points + new_max,
loader->base.extra_points + old_max,
old_max );
loader->base.extra_points2 = loader->base.extra_points + new_max;
}
adjust = 1;
loader->max_points = new_max;
}
/* check contours */
old_max = loader->max_contours;
new_max = base->n_contours + current->n_contours +
n_contours;
if ( new_max > old_max )
{
new_max = FT_PAD_CEIL( new_max, 4 );
if ( new_max > FT_OUTLINE_CONTOURS_MAX )
return FT_Err_Array_Too_Large;
if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) )
goto Exit;
adjust = 1;
loader->max_contours = new_max;
}
if ( adjust )
FT_GlyphLoader_Adjust_Points( loader );
Exit:
return error;
}
