[autofit] Add files necessary for adjustment database
* src/autofit/afadjust.h header file for adjustment database functions * src/autofit/afadjust.c will contain implementations of the adjustment database functions
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Craig White
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#include "afadjust.h"
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#include <freetype/freetype.h>
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#include <freetype/internal/ftobjs.h>
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#include <freetype/internal/ftmemory.h>
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#include <freetype/internal/ftdebug.h>
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#define AF_ADJUSTMENT_DATABASE_LENGTH ( sizeof(adjustment_database)/sizeof(adjustment_database[0]) )
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#undef FT_COMPONENT
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#define FT_COMPONENT afadjust
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/*
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All entries in this list must be sorted by unicode codepoint ascending
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The table entries are 3 numbers consisting of:
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- unicode codepoint. THESE MUST BE LISTED IN ASCENDING ORDER
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- the vertical adjustment type. This should be one of the enum constants in AF_VerticalSeparationAdjustmentType
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- 1 if the topmost contour is a tilde and should be prevented from flattening.
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*/
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FT_LOCAL_ARRAY_DEF( AF_AdjustmentDatabaseEntry )
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adjustment_database[] =
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{
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{0x21, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /* ! */
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{0x69, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /* i */
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{0x6A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /* j */
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{0xA1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*Inverted Exclamation Mark*/
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{0xBF, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /* j */
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{0xA1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*Inverted Exclamation Mark*/
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{0xBF, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*Inverted Question Mark*/
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{0xC0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*A with grave*/
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{0xC1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*A with acute*/
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{0xC2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*A with circumflex*/
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{0xC3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*A with tilde*/
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{0xC8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*E with grave*/
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{0xCC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*I with grave*/
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{0xCD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xCE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xD1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xDB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xDD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xE0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xE1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xE2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xE3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1}, /*a with tilde*/
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{0xE8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xE9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xEA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xEC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xED, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xEE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xF1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}, /*n with tilde*/
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{0xF2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xF3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xF4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xF5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1}, /*o with tilde*/
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{0xF9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xFA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xFB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0xFD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x100, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x101, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x102, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x103, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x106, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x108, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x109, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x10A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x10B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x10C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x10D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x10E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x112, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x113, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x114, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x115, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x116, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x117, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x11B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x11C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x11D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x11E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x11F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x120, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x121, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x123, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x124, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x125, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x128, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x129, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1}, /*i with tilde*/
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{0x12A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x12B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x12C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x12D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x12F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x130, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x134, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x135, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x139, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x13A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x143, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x144, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x147, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x14C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x14D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x14E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x14F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x154, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x155, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x158, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x159, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x15A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x15B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x15C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x15D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x160, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x161, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x164, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x168, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x169, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1}, /*u with tilde*/
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{0x16A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x16B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x16C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x16D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x174, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x175, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x176, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x177, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x179, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x17A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x17B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x17C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x17D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0},
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{0x17E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0}
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};
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@ -0,0 +1,34 @@
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#ifndef AFADJUST_H_
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#define AFADJUST_H_
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#include <freetype/fttypes.h>
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FT_BEGIN_HEADER
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/*The type of adjustment that should be done to prevent cases where 2 parts of a character*/
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/*stacked vertically merge, even though they should be separate*/
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typedef enum AF_VerticalSeparationAdjustmentType_
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{
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/*This means that the hinter should find the topmost contour and push it up until its lowest point is 1 pixel*/
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/*above the highest point not part of that contour.*/
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AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP,
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/*This is the opposite direction. The hinter should find the bottommost contour*/
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/*And push it down until there is a 1 pixel gap*/
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AF_VERTICAL_ADJUSTMENT_BOTTOM_CONTOUR_DOWN,
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AF_VERTICAL_ADJUSTMENT_NONE
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} AF_VerticalSeparationAdjustmentType;
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typedef struct AF_AdjustmentDatabaseEntry_ {
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FT_UInt32 codepoint;
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AF_VerticalSeparationAdjustmentType vertical_separation_adjustment_type;
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} AF_AdjustmentDatabaseEntry;
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struct AF_ReverseCharacterMap_;
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typedef struct AF_ReverseCharacterMap_ *AF_ReverseCharacterMap;
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FT_END_HEADER
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#endif
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