Index: core/src/fxge/fx_freetype/fxft2.5.01/src/pshinter/pshrec.c |
diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/src/pshinter/pshrec.c b/core/src/fxge/fx_freetype/fxft2.5.01/src/pshinter/pshrec.c |
deleted file mode 100644 |
index 8fc9a302d7487e3b1ac39ed6e8feaa4d6cc52c28..0000000000000000000000000000000000000000 |
--- a/core/src/fxge/fx_freetype/fxft2.5.01/src/pshinter/pshrec.c |
+++ /dev/null |
@@ -1,1225 +0,0 @@ |
-/***************************************************************************/ |
-/* */ |
-/* pshrec.c */ |
-/* */ |
-/* FreeType PostScript hints recorder (body). */ |
-/* */ |
-/* Copyright 2001-2004, 2007, 2009, 2013 by */ |
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
-/* */ |
-/* This file is part of the FreeType project, and may only be used, */ |
-/* modified, and distributed under the terms of the FreeType project */ |
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
-/* this file you indicate that you have read the license and */ |
-/* understand and accept it fully. */ |
-/* */ |
-/***************************************************************************/ |
- |
- |
-#include "../../include/ft2build.h" |
-#include "../../include/freetype/freetype.h" |
-#include "../../include/freetype/internal/ftobjs.h" |
-#include "../../include/freetype/internal/ftdebug.h" |
-#include "../../include/freetype/internal/ftcalc.h" |
- |
-#include "pshrec.h" |
-#include "pshalgo.h" |
- |
-#include "pshnterr.h" |
- |
-#undef FT_COMPONENT |
-#define FT_COMPONENT trace_pshrec |
- |
-#ifdef DEBUG_HINTER |
- PS_Hints ps_debug_hints = 0; |
- int ps_debug_no_horz_hints = 0; |
- int ps_debug_no_vert_hints = 0; |
-#endif |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** PS_HINT MANAGEMENT *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- /* destroy hints table */ |
- static void |
- ps_hint_table_done( PS_Hint_Table table, |
- FT_Memory memory ) |
- { |
- FT_FREE( table->hints ); |
- table->num_hints = 0; |
- table->max_hints = 0; |
- } |
- |
- |
- /* ensure that a table can contain "count" elements */ |
- static FT_Error |
- ps_hint_table_ensure( PS_Hint_Table table, |
- FT_UInt count, |
- FT_Memory memory ) |
- { |
- FT_UInt old_max = table->max_hints; |
- FT_UInt new_max = count; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- if ( new_max > old_max ) |
- { |
- /* try to grow the table */ |
- new_max = FT_PAD_CEIL( new_max, 8 ); |
- if ( !FT_RENEW_ARRAY( table->hints, old_max, new_max ) ) |
- table->max_hints = new_max; |
- } |
- return error; |
- } |
- |
- |
- static FT_Error |
- ps_hint_table_alloc( PS_Hint_Table table, |
- FT_Memory memory, |
- PS_Hint *ahint ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_UInt count; |
- PS_Hint hint = 0; |
- |
- |
- count = table->num_hints; |
- count++; |
- |
- if ( count >= table->max_hints ) |
- { |
- error = ps_hint_table_ensure( table, count, memory ); |
- if ( error ) |
- goto Exit; |
- } |
- |
- hint = table->hints + count - 1; |
- hint->pos = 0; |
- hint->len = 0; |
- hint->flags = 0; |
- |
- table->num_hints = count; |
- |
- Exit: |
- *ahint = hint; |
- return error; |
- } |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** PS_MASK MANAGEMENT *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- /* destroy mask */ |
- static void |
- ps_mask_done( PS_Mask mask, |
- FT_Memory memory ) |
- { |
- FT_FREE( mask->bytes ); |
- mask->num_bits = 0; |
- mask->max_bits = 0; |
- mask->end_point = 0; |
- } |
- |
- |
- /* ensure that a mask can contain "count" bits */ |
- static FT_Error |
- ps_mask_ensure( PS_Mask mask, |
- FT_UInt count, |
- FT_Memory memory ) |
- { |
- FT_UInt old_max = ( mask->max_bits + 7 ) >> 3; |
- FT_UInt new_max = ( count + 7 ) >> 3; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- if ( new_max > old_max ) |
- { |
- new_max = FT_PAD_CEIL( new_max, 8 ); |
- if ( !FT_RENEW_ARRAY( mask->bytes, old_max, new_max ) ) |
- mask->max_bits = new_max * 8; |
- } |
- return error; |
- } |
- |
- |
- /* test a bit value in a given mask */ |
- static FT_Int |
- ps_mask_test_bit( PS_Mask mask, |
- FT_Int idx ) |
- { |
- if ( (FT_UInt)idx >= mask->num_bits ) |
- return 0; |
- |
- return mask->bytes[idx >> 3] & ( 0x80 >> ( idx & 7 ) ); |
- } |
- |
- |
- /* clear a given bit */ |
- static void |
- ps_mask_clear_bit( PS_Mask mask, |
- FT_Int idx ) |
- { |
- FT_Byte* p; |
- |
- |
- if ( (FT_UInt)idx >= mask->num_bits ) |
- return; |
- |
- p = mask->bytes + ( idx >> 3 ); |
- p[0] = (FT_Byte)( p[0] & ~( 0x80 >> ( idx & 7 ) ) ); |
- } |
- |
- |
- /* set a given bit, possibly grow the mask */ |
- static FT_Error |
- ps_mask_set_bit( PS_Mask mask, |
- FT_Int idx, |
- FT_Memory memory ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_Byte* p; |
- |
- |
- if ( idx < 0 ) |
- goto Exit; |
- |
- if ( (FT_UInt)idx >= mask->num_bits ) |
- { |
- error = ps_mask_ensure( mask, idx + 1, memory ); |
- if ( error ) |
- goto Exit; |
- |
- mask->num_bits = idx + 1; |
- } |
- |
- p = mask->bytes + ( idx >> 3 ); |
- p[0] = (FT_Byte)( p[0] | ( 0x80 >> ( idx & 7 ) ) ); |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* destroy mask table */ |
- static void |
- ps_mask_table_done( PS_Mask_Table table, |
- FT_Memory memory ) |
- { |
- FT_UInt count = table->max_masks; |
- PS_Mask mask = table->masks; |
- |
- |
- for ( ; count > 0; count--, mask++ ) |
- ps_mask_done( mask, memory ); |
- |
- FT_FREE( table->masks ); |
- table->num_masks = 0; |
- table->max_masks = 0; |
- } |
- |
- |
- /* ensure that a mask table can contain "count" masks */ |
- static FT_Error |
- ps_mask_table_ensure( PS_Mask_Table table, |
- FT_UInt count, |
- FT_Memory memory ) |
- { |
- FT_UInt old_max = table->max_masks; |
- FT_UInt new_max = count; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- if ( new_max > old_max ) |
- { |
- new_max = FT_PAD_CEIL( new_max, 8 ); |
- if ( !FT_RENEW_ARRAY( table->masks, old_max, new_max ) ) |
- table->max_masks = new_max; |
- } |
- return error; |
- } |
- |
- |
- /* allocate a new mask in a table */ |
- static FT_Error |
- ps_mask_table_alloc( PS_Mask_Table table, |
- FT_Memory memory, |
- PS_Mask *amask ) |
- { |
- FT_UInt count; |
- FT_Error error = FT_Err_Ok; |
- PS_Mask mask = 0; |
- |
- |
- count = table->num_masks; |
- count++; |
- |
- if ( count > table->max_masks ) |
- { |
- error = ps_mask_table_ensure( table, count, memory ); |
- if ( error ) |
- goto Exit; |
- } |
- |
- mask = table->masks + count - 1; |
- mask->num_bits = 0; |
- mask->end_point = 0; |
- table->num_masks = count; |
- |
- Exit: |
- *amask = mask; |
- return error; |
- } |
- |
- |
- /* return last hint mask in a table, create one if the table is empty */ |
- static FT_Error |
- ps_mask_table_last( PS_Mask_Table table, |
- FT_Memory memory, |
- PS_Mask *amask ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_UInt count; |
- PS_Mask mask; |
- |
- |
- count = table->num_masks; |
- if ( count == 0 ) |
- { |
- error = ps_mask_table_alloc( table, memory, &mask ); |
- if ( error ) |
- goto Exit; |
- } |
- else |
- mask = table->masks + count - 1; |
- |
- Exit: |
- *amask = mask; |
- return error; |
- } |
- |
- |
- /* set a new mask to a given bit range */ |
- static FT_Error |
- ps_mask_table_set_bits( PS_Mask_Table table, |
- const FT_Byte* source, |
- FT_UInt bit_pos, |
- FT_UInt bit_count, |
- FT_Memory memory ) |
- { |
- FT_Error error; |
- PS_Mask mask; |
- |
- |
- error = ps_mask_table_last( table, memory, &mask ); |
- if ( error ) |
- goto Exit; |
- |
- error = ps_mask_ensure( mask, bit_count, memory ); |
- if ( error ) |
- goto Exit; |
- |
- mask->num_bits = bit_count; |
- |
- /* now, copy bits */ |
- { |
- FT_Byte* read = (FT_Byte*)source + ( bit_pos >> 3 ); |
- FT_Int rmask = 0x80 >> ( bit_pos & 7 ); |
- FT_Byte* write = mask->bytes; |
- FT_Int wmask = 0x80; |
- FT_Int val; |
- |
- |
- for ( ; bit_count > 0; bit_count-- ) |
- { |
- val = write[0] & ~wmask; |
- |
- if ( read[0] & rmask ) |
- val |= wmask; |
- |
- write[0] = (FT_Byte)val; |
- |
- rmask >>= 1; |
- if ( rmask == 0 ) |
- { |
- read++; |
- rmask = 0x80; |
- } |
- |
- wmask >>= 1; |
- if ( wmask == 0 ) |
- { |
- write++; |
- wmask = 0x80; |
- } |
- } |
- } |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* test whether two masks in a table intersect */ |
- static FT_Int |
- ps_mask_table_test_intersect( PS_Mask_Table table, |
- FT_Int index1, |
- FT_Int index2 ) |
- { |
- PS_Mask mask1 = table->masks + index1; |
- PS_Mask mask2 = table->masks + index2; |
- FT_Byte* p1 = mask1->bytes; |
- FT_Byte* p2 = mask2->bytes; |
- FT_UInt count1 = mask1->num_bits; |
- FT_UInt count2 = mask2->num_bits; |
- FT_UInt count; |
- |
- |
- count = FT_MIN( count1, count2 ); |
- for ( ; count >= 8; count -= 8 ) |
- { |
- if ( p1[0] & p2[0] ) |
- return 1; |
- |
- p1++; |
- p2++; |
- } |
- |
- if ( count == 0 ) |
- return 0; |
- |
- return ( p1[0] & p2[0] ) & ~( 0xFF >> count ); |
- } |
- |
- |
- /* merge two masks, used by ps_mask_table_merge_all */ |
- static FT_Error |
- ps_mask_table_merge( PS_Mask_Table table, |
- FT_Int index1, |
- FT_Int index2, |
- FT_Memory memory ) |
- { |
- FT_UInt temp; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- /* swap index1 and index2 so that index1 < index2 */ |
- if ( index1 > index2 ) |
- { |
- temp = index1; |
- index1 = index2; |
- index2 = temp; |
- } |
- |
- if ( index1 < index2 && index1 >= 0 && index2 < (FT_Int)table->num_masks ) |
- { |
- /* we need to merge the bitsets of index1 and index2 with a */ |
- /* simple union */ |
- PS_Mask mask1 = table->masks + index1; |
- PS_Mask mask2 = table->masks + index2; |
- FT_UInt count1 = mask1->num_bits; |
- FT_UInt count2 = mask2->num_bits; |
- FT_Int delta; |
- |
- |
- if ( count2 > 0 ) |
- { |
- FT_UInt pos; |
- FT_Byte* read; |
- FT_Byte* write; |
- |
- |
- /* if "count2" is greater than "count1", we need to grow the */ |
- /* first bitset, and clear the highest bits */ |
- if ( count2 > count1 ) |
- { |
- error = ps_mask_ensure( mask1, count2, memory ); |
- if ( error ) |
- goto Exit; |
- |
- for ( pos = count1; pos < count2; pos++ ) |
- ps_mask_clear_bit( mask1, pos ); |
- } |
- |
- /* merge (unite) the bitsets */ |
- read = mask2->bytes; |
- write = mask1->bytes; |
- pos = (FT_UInt)( ( count2 + 7 ) >> 3 ); |
- |
- for ( ; pos > 0; pos-- ) |
- { |
- write[0] = (FT_Byte)( write[0] | read[0] ); |
- write++; |
- read++; |
- } |
- } |
- |
- /* Now, remove "mask2" from the list. We need to keep the masks */ |
- /* sorted in order of importance, so move table elements. */ |
- mask2->num_bits = 0; |
- mask2->end_point = 0; |
- |
- delta = table->num_masks - 1 - index2; /* number of masks to move */ |
- if ( delta > 0 ) |
- { |
- /* move to end of table for reuse */ |
- PS_MaskRec dummy = *mask2; |
- |
- |
- ft_memmove( mask2, mask2 + 1, delta * sizeof ( PS_MaskRec ) ); |
- |
- mask2[delta] = dummy; |
- } |
- |
- table->num_masks--; |
- } |
- else |
- FT_TRACE0(( "ps_mask_table_merge: ignoring invalid indices (%d,%d)\n", |
- index1, index2 )); |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* Try to merge all masks in a given table. This is used to merge */ |
- /* all counter masks into independent counter "paths". */ |
- /* */ |
- static FT_Error |
- ps_mask_table_merge_all( PS_Mask_Table table, |
- FT_Memory memory ) |
- { |
- FT_Int index1, index2; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- for ( index1 = table->num_masks - 1; index1 > 0; index1-- ) |
- { |
- for ( index2 = index1 - 1; index2 >= 0; index2-- ) |
- { |
- if ( ps_mask_table_test_intersect( table, index1, index2 ) ) |
- { |
- error = ps_mask_table_merge( table, index2, index1, memory ); |
- if ( error ) |
- goto Exit; |
- |
- break; |
- } |
- } |
- } |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** PS_DIMENSION MANAGEMENT *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- |
- /* finalize a given dimension */ |
- static void |
- ps_dimension_done( PS_Dimension dimension, |
- FT_Memory memory ) |
- { |
- ps_mask_table_done( &dimension->counters, memory ); |
- ps_mask_table_done( &dimension->masks, memory ); |
- ps_hint_table_done( &dimension->hints, memory ); |
- } |
- |
- |
- /* initialize a given dimension */ |
- static void |
- ps_dimension_init( PS_Dimension dimension ) |
- { |
- dimension->hints.num_hints = 0; |
- dimension->masks.num_masks = 0; |
- dimension->counters.num_masks = 0; |
- } |
- |
- |
-#if 0 |
- |
- /* set a bit at a given index in the current hint mask */ |
- static FT_Error |
- ps_dimension_set_mask_bit( PS_Dimension dim, |
- FT_UInt idx, |
- FT_Memory memory ) |
- { |
- PS_Mask mask; |
- FT_Error error = FT_Err_Ok; |
- |
- |
- /* get last hint mask */ |
- error = ps_mask_table_last( &dim->masks, memory, &mask ); |
- if ( error ) |
- goto Exit; |
- |
- error = ps_mask_set_bit( mask, idx, memory ); |
- |
- Exit: |
- return error; |
- } |
- |
-#endif |
- |
- /* set the end point in a mask, called from "End" & "Reset" methods */ |
- static void |
- ps_dimension_end_mask( PS_Dimension dim, |
- FT_UInt end_point ) |
- { |
- FT_UInt count = dim->masks.num_masks; |
- |
- |
- if ( count > 0 ) |
- { |
- PS_Mask mask = dim->masks.masks + count - 1; |
- |
- |
- mask->end_point = end_point; |
- } |
- } |
- |
- |
- /* set the end point in the current mask, then create a new empty one */ |
- /* (called by "Reset" method) */ |
- static FT_Error |
- ps_dimension_reset_mask( PS_Dimension dim, |
- FT_UInt end_point, |
- FT_Memory memory ) |
- { |
- PS_Mask mask; |
- |
- |
- /* end current mask */ |
- ps_dimension_end_mask( dim, end_point ); |
- |
- /* allocate new one */ |
- return ps_mask_table_alloc( &dim->masks, memory, &mask ); |
- } |
- |
- |
- /* set a new mask, called from the "T2Stem" method */ |
- static FT_Error |
- ps_dimension_set_mask_bits( PS_Dimension dim, |
- const FT_Byte* source, |
- FT_UInt source_pos, |
- FT_UInt source_bits, |
- FT_UInt end_point, |
- FT_Memory memory ) |
- { |
- FT_Error error; |
- |
- |
- /* reset current mask, if any */ |
- error = ps_dimension_reset_mask( dim, end_point, memory ); |
- if ( error ) |
- goto Exit; |
- |
- /* set bits in new mask */ |
- error = ps_mask_table_set_bits( &dim->masks, source, |
- source_pos, source_bits, memory ); |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* add a new single stem (called from "T1Stem" method) */ |
- static FT_Error |
- ps_dimension_add_t1stem( PS_Dimension dim, |
- FT_Int pos, |
- FT_Int len, |
- FT_Memory memory, |
- FT_Int *aindex ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_UInt flags = 0; |
- |
- |
- /* detect ghost stem */ |
- if ( len < 0 ) |
- { |
- flags |= PS_HINT_FLAG_GHOST; |
- if ( len == -21 ) |
- { |
- flags |= PS_HINT_FLAG_BOTTOM; |
- pos += len; |
- } |
- len = 0; |
- } |
- |
- if ( aindex ) |
- *aindex = -1; |
- |
- /* now, lookup stem in the current hints table */ |
- { |
- PS_Mask mask; |
- FT_UInt idx; |
- FT_UInt max = dim->hints.num_hints; |
- PS_Hint hint = dim->hints.hints; |
- |
- |
- for ( idx = 0; idx < max; idx++, hint++ ) |
- { |
- if ( hint->pos == pos && hint->len == len ) |
- break; |
- } |
- |
- /* we need to create a new hint in the table */ |
- if ( idx >= max ) |
- { |
- error = ps_hint_table_alloc( &dim->hints, memory, &hint ); |
- if ( error ) |
- goto Exit; |
- |
- hint->pos = pos; |
- hint->len = len; |
- hint->flags = flags; |
- } |
- |
- /* now, store the hint in the current mask */ |
- error = ps_mask_table_last( &dim->masks, memory, &mask ); |
- if ( error ) |
- goto Exit; |
- |
- error = ps_mask_set_bit( mask, idx, memory ); |
- if ( error ) |
- goto Exit; |
- |
- if ( aindex ) |
- *aindex = (FT_Int)idx; |
- } |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* add a "hstem3/vstem3" counter to our dimension table */ |
- static FT_Error |
- ps_dimension_add_counter( PS_Dimension dim, |
- FT_Int hint1, |
- FT_Int hint2, |
- FT_Int hint3, |
- FT_Memory memory ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_UInt count = dim->counters.num_masks; |
- PS_Mask counter = dim->counters.masks; |
- |
- |
- /* try to find an existing counter mask that already uses */ |
- /* one of these stems here */ |
- for ( ; count > 0; count--, counter++ ) |
- { |
- if ( ps_mask_test_bit( counter, hint1 ) || |
- ps_mask_test_bit( counter, hint2 ) || |
- ps_mask_test_bit( counter, hint3 ) ) |
- break; |
- } |
- |
- /* create a new counter when needed */ |
- if ( count == 0 ) |
- { |
- error = ps_mask_table_alloc( &dim->counters, memory, &counter ); |
- if ( error ) |
- goto Exit; |
- } |
- |
- /* now, set the bits for our hints in the counter mask */ |
- error = ps_mask_set_bit( counter, hint1, memory ); |
- if ( error ) |
- goto Exit; |
- |
- error = ps_mask_set_bit( counter, hint2, memory ); |
- if ( error ) |
- goto Exit; |
- |
- error = ps_mask_set_bit( counter, hint3, memory ); |
- if ( error ) |
- goto Exit; |
- |
- Exit: |
- return error; |
- } |
- |
- |
- /* end of recording session for a given dimension */ |
- static FT_Error |
- ps_dimension_end( PS_Dimension dim, |
- FT_UInt end_point, |
- FT_Memory memory ) |
- { |
- /* end hint mask table */ |
- ps_dimension_end_mask( dim, end_point ); |
- |
- /* merge all counter masks into independent "paths" */ |
- return ps_mask_table_merge_all( &dim->counters, memory ); |
- } |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** PS_RECORDER MANAGEMENT *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- |
- /* destroy hints */ |
- FT_LOCAL( void ) |
- ps_hints_done( PS_Hints hints ) |
- { |
- FT_Memory memory = hints->memory; |
- |
- |
- ps_dimension_done( &hints->dimension[0], memory ); |
- ps_dimension_done( &hints->dimension[1], memory ); |
- |
- hints->error = FT_Err_Ok; |
- hints->memory = 0; |
- } |
- |
- |
- FT_LOCAL( FT_Error ) |
- ps_hints_init( PS_Hints hints, |
- FT_Memory memory ) |
- { |
- FT_MEM_ZERO( hints, sizeof ( *hints ) ); |
- hints->memory = memory; |
- return FT_Err_Ok; |
- } |
- |
- |
- /* initialize a hints for a new session */ |
- static void |
- ps_hints_open( PS_Hints hints, |
- PS_Hint_Type hint_type ) |
- { |
- switch ( hint_type ) |
- { |
- case PS_HINT_TYPE_1: |
- case PS_HINT_TYPE_2: |
- hints->error = FT_Err_Ok; |
- hints->hint_type = hint_type; |
- |
- ps_dimension_init( &hints->dimension[0] ); |
- ps_dimension_init( &hints->dimension[1] ); |
- break; |
- |
- default: |
- hints->error = FT_THROW( Invalid_Argument ); |
- hints->hint_type = hint_type; |
- |
- FT_TRACE0(( "ps_hints_open: invalid charstring type\n" )); |
- break; |
- } |
- } |
- |
- |
- /* add one or more stems to the current hints table */ |
- static void |
- ps_hints_stem( PS_Hints hints, |
- FT_Int dimension, |
- FT_UInt count, |
- FT_Long* stems ) |
- { |
- if ( !hints->error ) |
- { |
- /* limit "dimension" to 0..1 */ |
- if ( dimension < 0 || dimension > 1 ) |
- { |
- FT_TRACE0(( "ps_hints_stem: invalid dimension (%d) used\n", |
- dimension )); |
- dimension = ( dimension != 0 ); |
- } |
- |
- /* record the stems in the current hints/masks table */ |
- switch ( hints->hint_type ) |
- { |
- case PS_HINT_TYPE_1: /* Type 1 "hstem" or "vstem" operator */ |
- case PS_HINT_TYPE_2: /* Type 2 "hstem" or "vstem" operator */ |
- { |
- PS_Dimension dim = &hints->dimension[dimension]; |
- |
- |
- for ( ; count > 0; count--, stems += 2 ) |
- { |
- FT_Error error; |
- FT_Memory memory = hints->memory; |
- |
- |
- error = ps_dimension_add_t1stem( |
- dim, (FT_Int)stems[0], (FT_Int)stems[1], |
- memory, NULL ); |
- if ( error ) |
- { |
- FT_ERROR(( "ps_hints_stem: could not add stem" |
- " (%d,%d) to hints table\n", stems[0], stems[1] )); |
- |
- hints->error = error; |
- return; |
- } |
- } |
- break; |
- } |
- |
- default: |
- FT_TRACE0(( "ps_hints_stem: called with invalid hint type (%d)\n", |
- hints->hint_type )); |
- break; |
- } |
- } |
- } |
- |
- |
- /* add one Type1 counter stem to the current hints table */ |
- static void |
- ps_hints_t1stem3( PS_Hints hints, |
- FT_Int dimension, |
- FT_Fixed* stems ) |
- { |
- FT_Error error = FT_Err_Ok; |
- |
- |
- if ( !hints->error ) |
- { |
- PS_Dimension dim; |
- FT_Memory memory = hints->memory; |
- FT_Int count; |
- FT_Int idx[3]; |
- |
- |
- /* limit "dimension" to 0..1 */ |
- if ( dimension < 0 || dimension > 1 ) |
- { |
- FT_TRACE0(( "ps_hints_t1stem3: invalid dimension (%d) used\n", |
- dimension )); |
- dimension = ( dimension != 0 ); |
- } |
- |
- dim = &hints->dimension[dimension]; |
- |
- /* there must be 6 elements in the 'stem' array */ |
- if ( hints->hint_type == PS_HINT_TYPE_1 ) |
- { |
- /* add the three stems to our hints/masks table */ |
- for ( count = 0; count < 3; count++, stems += 2 ) |
- { |
- error = ps_dimension_add_t1stem( dim, |
- (FT_Int)FIXED_TO_INT( stems[0] ), |
- (FT_Int)FIXED_TO_INT( stems[1] ), |
- memory, &idx[count] ); |
- if ( error ) |
- goto Fail; |
- } |
- |
- /* now, add the hints to the counters table */ |
- error = ps_dimension_add_counter( dim, idx[0], idx[1], idx[2], |
- memory ); |
- if ( error ) |
- goto Fail; |
- } |
- else |
- { |
- FT_ERROR(( "ps_hints_t1stem3: called with invalid hint type\n" )); |
- error = FT_THROW( Invalid_Argument ); |
- goto Fail; |
- } |
- } |
- |
- return; |
- |
- Fail: |
- FT_ERROR(( "ps_hints_t1stem3: could not add counter stems to table\n" )); |
- hints->error = error; |
- } |
- |
- |
- /* reset hints (only with Type 1 hints) */ |
- static void |
- ps_hints_t1reset( PS_Hints hints, |
- FT_UInt end_point ) |
- { |
- FT_Error error = FT_Err_Ok; |
- |
- |
- if ( !hints->error ) |
- { |
- FT_Memory memory = hints->memory; |
- |
- |
- if ( hints->hint_type == PS_HINT_TYPE_1 ) |
- { |
- error = ps_dimension_reset_mask( &hints->dimension[0], |
- end_point, memory ); |
- if ( error ) |
- goto Fail; |
- |
- error = ps_dimension_reset_mask( &hints->dimension[1], |
- end_point, memory ); |
- if ( error ) |
- goto Fail; |
- } |
- else |
- { |
- /* invalid hint type */ |
- error = FT_THROW( Invalid_Argument ); |
- goto Fail; |
- } |
- } |
- return; |
- |
- Fail: |
- hints->error = error; |
- } |
- |
- |
- /* Type2 "hintmask" operator, add a new hintmask to each direction */ |
- static void |
- ps_hints_t2mask( PS_Hints hints, |
- FT_UInt end_point, |
- FT_UInt bit_count, |
- const FT_Byte* bytes ) |
- { |
- FT_Error error; |
- |
- |
- if ( !hints->error ) |
- { |
- PS_Dimension dim = hints->dimension; |
- FT_Memory memory = hints->memory; |
- FT_UInt count1 = dim[0].hints.num_hints; |
- FT_UInt count2 = dim[1].hints.num_hints; |
- |
- |
- /* check bit count; must be equal to current total hint count */ |
- if ( bit_count != count1 + count2 ) |
- { |
- FT_TRACE0(( "ps_hints_t2mask:" |
- " called with invalid bitcount %d (instead of %d)\n", |
- bit_count, count1 + count2 )); |
- |
- /* simply ignore the operator */ |
- return; |
- } |
- |
- /* set-up new horizontal and vertical hint mask now */ |
- error = ps_dimension_set_mask_bits( &dim[0], bytes, count2, count1, |
- end_point, memory ); |
- if ( error ) |
- goto Fail; |
- |
- error = ps_dimension_set_mask_bits( &dim[1], bytes, 0, count2, |
- end_point, memory ); |
- if ( error ) |
- goto Fail; |
- } |
- return; |
- |
- Fail: |
- hints->error = error; |
- } |
- |
- |
- static void |
- ps_hints_t2counter( PS_Hints hints, |
- FT_UInt bit_count, |
- const FT_Byte* bytes ) |
- { |
- FT_Error error; |
- |
- |
- if ( !hints->error ) |
- { |
- PS_Dimension dim = hints->dimension; |
- FT_Memory memory = hints->memory; |
- FT_UInt count1 = dim[0].hints.num_hints; |
- FT_UInt count2 = dim[1].hints.num_hints; |
- |
- |
- /* check bit count, must be equal to current total hint count */ |
- if ( bit_count != count1 + count2 ) |
- { |
- FT_TRACE0(( "ps_hints_t2counter:" |
- " called with invalid bitcount %d (instead of %d)\n", |
- bit_count, count1 + count2 )); |
- |
- /* simply ignore the operator */ |
- return; |
- } |
- |
- /* set-up new horizontal and vertical hint mask now */ |
- error = ps_dimension_set_mask_bits( &dim[0], bytes, 0, count1, |
- 0, memory ); |
- if ( error ) |
- goto Fail; |
- |
- error = ps_dimension_set_mask_bits( &dim[1], bytes, count1, count2, |
- 0, memory ); |
- if ( error ) |
- goto Fail; |
- } |
- return; |
- |
- Fail: |
- hints->error = error; |
- } |
- |
- |
- /* end recording session */ |
- static FT_Error |
- ps_hints_close( PS_Hints hints, |
- FT_UInt end_point ) |
- { |
- FT_Error error; |
- |
- |
- error = hints->error; |
- if ( !error ) |
- { |
- FT_Memory memory = hints->memory; |
- PS_Dimension dim = hints->dimension; |
- |
- |
- error = ps_dimension_end( &dim[0], end_point, memory ); |
- if ( !error ) |
- { |
- error = ps_dimension_end( &dim[1], end_point, memory ); |
- } |
- } |
- |
-#ifdef DEBUG_HINTER |
- if ( !error ) |
- ps_debug_hints = hints; |
-#endif |
- return error; |
- } |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** TYPE 1 HINTS RECORDING INTERFACE *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- static void |
- t1_hints_open( T1_Hints hints ) |
- { |
- ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_1 ); |
- } |
- |
- static void |
- t1_hints_stem( T1_Hints hints, |
- FT_Int dimension, |
- FT_Fixed* coords ) |
- { |
- FT_Pos stems[2]; |
- |
- |
- stems[0] = FIXED_TO_INT( coords[0] ); |
- stems[1] = FIXED_TO_INT( coords[1] ); |
- |
- ps_hints_stem( (PS_Hints)hints, dimension, 1, stems ); |
- } |
- |
- |
- FT_LOCAL_DEF( void ) |
- t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ) |
- { |
- FT_MEM_ZERO( (char*)funcs, sizeof ( *funcs ) ); |
- |
- funcs->open = (T1_Hints_OpenFunc) t1_hints_open; |
- funcs->close = (T1_Hints_CloseFunc) ps_hints_close; |
- funcs->stem = (T1_Hints_SetStemFunc) t1_hints_stem; |
- funcs->stem3 = (T1_Hints_SetStem3Func)ps_hints_t1stem3; |
- funcs->reset = (T1_Hints_ResetFunc) ps_hints_t1reset; |
- funcs->apply = (T1_Hints_ApplyFunc) ps_hints_apply; |
- } |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** TYPE 2 HINTS RECORDING INTERFACE *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- static void |
- t2_hints_open( T2_Hints hints ) |
- { |
- ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_2 ); |
- } |
- |
- |
- static void |
- t2_hints_stems( T2_Hints hints, |
- FT_Int dimension, |
- FT_Int count, |
- FT_Fixed* coords ) |
- { |
- FT_Pos stems[32], y, n; |
- FT_Int total = count; |
- |
- |
- y = 0; |
- while ( total > 0 ) |
- { |
- /* determine number of stems to write */ |
- count = total; |
- if ( count > 16 ) |
- count = 16; |
- |
- /* compute integer stem positions in font units */ |
- for ( n = 0; n < count * 2; n++ ) |
- { |
- y += coords[n]; |
- stems[n] = FIXED_TO_INT( y ); |
- } |
- |
- /* compute lengths */ |
- for ( n = 0; n < count * 2; n += 2 ) |
- stems[n + 1] = stems[n + 1] - stems[n]; |
- |
- /* add them to the current dimension */ |
- ps_hints_stem( (PS_Hints)hints, dimension, count, stems ); |
- |
- total -= count; |
- } |
- } |
- |
- |
- FT_LOCAL_DEF( void ) |
- t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ) |
- { |
- FT_MEM_ZERO( funcs, sizeof ( *funcs ) ); |
- |
- funcs->open = (T2_Hints_OpenFunc) t2_hints_open; |
- funcs->close = (T2_Hints_CloseFunc) ps_hints_close; |
- funcs->stems = (T2_Hints_StemsFunc) t2_hints_stems; |
- funcs->hintmask= (T2_Hints_MaskFunc) ps_hints_t2mask; |
- funcs->counter = (T2_Hints_CounterFunc)ps_hints_t2counter; |
- funcs->apply = (T2_Hints_ApplyFunc) ps_hints_apply; |
- } |
- |
- |
-/* END */ |