| #include "pshoptim.h" |
| |
| |
| #ifdef DEBUG_VIEW |
| void |
| ps_simple_scale( PSH_Hint_Table table, |
| FT_Fixed scale, |
| FT_Fixed delta, |
| FT_Bool vertical ) |
| { |
| PSH_Hint hint; |
| FT_UInt count; |
| |
| for ( count = 0; count < table->num_hints; count++ ) |
| { |
| hint = table->sort[count]; |
| if ( psh_hint_is_active(hint) ) |
| { |
| hint->cur_pos = FT_MulFix( hint->org_pos, scale ) + delta; |
| hint->cur_len = FT_MulFix( hint->org_len, scale ); |
| |
| if (ps_debug_hint_func) |
| ps_debug_hint_func( hint, vertical ); |
| } |
| } |
| } |
| #endif |
| |
| FT_LOCAL_DEF FT_Error |
| psh_hint_table_optimize( PSH_Hint_Table table, |
| PSH_Globals globals, |
| FT_Outline* outline, |
| FT_Bool vertical ) |
| { |
| PSH_Dimension dim = &globals->dimension[vertical]; |
| FT_Fixed scale = dim->scale_mult; |
| FT_Fixed delta = dim->scale_delta; |
| |
| #ifdef DEBUG_VIEW |
| if ( ps_debug_no_vert_hints && vertical ) |
| { |
| ps_simple_scale( table, scale, delta, vertical ); |
| return 0; |
| } |
| |
| if ( ps_debug_no_horz_hints && !vertical ) |
| { |
| ps_simple_scale( table, scale, delta, vertical ); |
| return 0; |
| } |
| #endif |
| |
| /* XXXX: for now, we only scale the hints to test all other aspects */ |
| /* of the Postscript Hinter.. */ |
| { |
| PSH_Hint hint; |
| FT_UInt count; |
| |
| for ( count = 0; count < table->num_hints; count++ ) |
| { |
| hint = table->sort[count]; |
| if ( psh_hint_is_active(hint) ) |
| { |
| # if 1 |
| FT_Pos pos = FT_MulFix( hint->org_pos, scale ) + delta; |
| FT_Pos len = FT_MulFix( hint->org_len, scale ); |
| |
| FT_Pos fit_center; |
| FT_Pos fit_len; |
| |
| PSH_Blue_AlignementRec align; |
| |
| /* compute fitted width/height */ |
| fit_len = psh_dimension_snap_width( dim, hint->org_len ); |
| if ( fit_len < 64 ) |
| fit_len = 64; |
| else |
| fit_len = (fit_len + 16 ) & -64; |
| |
| hint->cur_len = fit_len; |
| |
| /* check blue zones for horizontal stems */ |
| align.align = 0; |
| if (!vertical) |
| { |
| psh_blues_snap_stem( &globals->blues, |
| hint->org_pos + hint->org_len, |
| hint->org_pos, |
| &align ); |
| } |
| |
| switch (align.align) |
| { |
| case PSH_BLUE_ALIGN_TOP: |
| { |
| /* the top of the stem is aligned against a blue zone */ |
| hint->cur_pos = align.align_top - fit_len; |
| break; |
| } |
| |
| case PSH_BLUE_ALIGN_BOT: |
| { |
| /* the bottom of the stem is aligned against a blue zone */ |
| hint->cur_pos = align.align_bot; |
| break; |
| } |
| |
| case PSH_BLUE_ALIGN_TOP | PSH_BLUE_ALIGN_BOT: |
| { |
| /* both edges of the stem are aligned against blue zones */ |
| hint->cur_pos = align.align_bot; |
| hint->cur_len = align.align_top - align.align_bot; |
| } |
| break; |
| |
| default: |
| /* normal processing */ |
| if ( (fit_len/64) & 1 ) |
| { |
| /* odd number of pixels */ |
| fit_center = ((pos + (len >> 1)) & -64) + 32; |
| } |
| else |
| { |
| /* even number of pixels */ |
| fit_center = (pos + (len >> 1) + 32) & -64; |
| } |
| |
| hint->cur_pos = fit_center - (fit_len >> 1); |
| } |
| # else |
| hint->cur_pos = (FT_MulFix( hint->org_pos, scale ) + delta + 32) & -64; |
| hint->cur_len = FT_MulFix( hint->org_len, scale ); |
| # endif |
| |
| #ifdef DEBUG_VIEW |
| if (ps_debug_hint_func) |
| ps_debug_hint_func( hint, vertical ); |
| #endif |
| } |
| } |
| } |
| |
| return 0; |
| } |