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[freetype2] adjust fe3170070 2/7: [autofit] Add adjustment database.
|
From: |
Werner Lemberg |
|
Subject: |
[freetype2] adjust fe3170070 2/7: [autofit] Add adjustment database. |
|
Date: |
Thu, 18 Jul 2024 03:58:28 -0400 (EDT) |
branch: adjust
commit fe317007010931e6c57fa9eb07ca8e828961ce62
Author: Craig White <gerzytet@gmail.com>
Commit: Werner Lemberg <wl@gnu.org>
[autofit] Add adjustment database.
* src/autofit/afadjust.c, src/autofit/afadjust.h: New files.
* include/freetype/internal/fttrace.h: Add 'afadjust' component.
* src/autofit/autofit.c: Include `afadjust.c`.
* src/autofit/rules.mk (AUTOF_DRV_SRC): Add `afadjust.c`.
---
include/freetype/internal/fttrace.h | 1 +
src/autofit/afadjust.c | 185 ++++++++++++++++++++++++++++++++++++
src/autofit/afadjust.h | 66 +++++++++++++
src/autofit/autofit.c | 1 +
src/autofit/rules.mk | 3 +-
5 files changed, 255 insertions(+), 1 deletion(-)
diff --git a/include/freetype/internal/fttrace.h
b/include/freetype/internal/fttrace.h
index 42595a29f..102100d1b 100644
--- a/include/freetype/internal/fttrace.h
+++ b/include/freetype/internal/fttrace.h
@@ -159,6 +159,7 @@ FT_TRACE_DEF( gxvprop )
FT_TRACE_DEF( gxvtrak )
/* autofit components */
+FT_TRACE_DEF( afadjust )
FT_TRACE_DEF( afcjk )
FT_TRACE_DEF( afglobal )
FT_TRACE_DEF( afhints )
diff --git a/src/autofit/afadjust.c b/src/autofit/afadjust.c
new file mode 100644
index 000000000..d7812a121
--- /dev/null
+++ b/src/autofit/afadjust.c
@@ -0,0 +1,185 @@
+/****************************************************************************
+ *
+ * afadjust.c
+ *
+ * Auto-fitter routines to adjust components based on charcode (body).
+ *
+ * Copyright (C) 2023-2024 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Craig White <gerzytet@gmail.com>.
+ *
+ * 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 "afadjust.h"
+
+#include <freetype/freetype.h>
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftmemory.h>
+#include <freetype/internal/ftdebug.h>
+
+#define AF_ADJUSTMENT_DATABASE_LENGTH \
+ ( sizeof ( adjustment_database ) / \
+ sizeof ( adjustment_database[0] ) )
+
+#undef FT_COMPONENT
+#define FT_COMPONENT afadjust
+
+
+ /*
+ All entries in this list must be sorted by ascending Unicode code
+ points. The table entries are 3 numbers consisting of:
+
+ - Unicode code point.
+ - The vertical adjustment type. This should be one of the enum
+ constants in `AF_VerticalSeparationAdjustmentType`.
+ - Value 1 if the topmost contour is a tilde and should be prevented from
+ flattening, and 0 otherwise.
+ */
+ FT_LOCAL_ARRAY_DEF( AF_AdjustmentDatabaseEntry )
+ adjustment_database[] =
+ {
+ { 0x21, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ! */
+ { 0x69, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* i */
+ { 0x6A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* j */
+
+ { 0xA1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ¡ */
+ { 0xBF, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ¿ */
+
+ { 0xC0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* À */
+ { 0xC1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Á */
+ { 0xC2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Â */
+ { 0xC3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ã */
+ { 0xC8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* È */
+ { 0xC9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* É */
+ { 0xCA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ê */
+ { 0xCC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ì */
+ { 0xCD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Í */
+ { 0xCE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Î */
+
+ { 0xD1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ñ */
+ { 0xD2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ò */
+ { 0xD3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ó */
+ { 0xD4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ô */
+ { 0xD5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Õ */
+ { 0xD9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ù */
+ { 0xDA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ú */
+ { 0xDB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Û */
+ { 0xDD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ý */
+
+ { 0xE0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* à */
+ { 0xE1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* á */
+ { 0xE2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* â */
+ { 0xE3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ã */
+ { 0xE8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* è */
+ { 0xE9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* é */
+ { 0xEA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ê */
+ { 0xEC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ì */
+ { 0xED, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* í */
+ { 0xEE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* î */
+
+ { 0xF1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ñ */
+ { 0xF2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ò */
+ { 0xF3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ó */
+ { 0xF4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ô */
+ { 0xF5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* õ */
+ { 0xF9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ù */
+ { 0xFA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ú */
+ { 0xFB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* û */
+ { 0xFD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ý */
+
+ { 0x100, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ā */
+ { 0x101, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ā */
+ { 0x102, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ă */
+ { 0x103, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ă */
+ { 0x106, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ć */
+ { 0x107, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ć */
+ { 0x108, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĉ */
+ { 0x109, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĉ */
+ { 0x10A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ċ */
+ { 0x10B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ċ */
+ { 0x10C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Č */
+ { 0x10D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* č */
+ { 0x10E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ď */
+
+ { 0x112, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ē */
+ { 0x113, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ē */
+ { 0x114, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĕ */
+ { 0x115, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĕ */
+ { 0x116, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ė */
+ { 0x117, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ė */
+ { 0x11A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ě */
+ { 0x11B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ě */
+ { 0x11C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĝ */
+ { 0x11D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĝ */
+ { 0x11E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ğ */
+ { 0x11F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ğ */
+
+ { 0x120, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ġ */
+ { 0x121, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ġ */
+ { 0x123, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ģ */
+ { 0x124, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĥ */
+ { 0x125, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĥ */
+ { 0x128, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ĩ */
+ { 0x129, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ĩ */
+ { 0x12A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ī */
+ { 0x12B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ī */
+ { 0x12C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĭ */
+ { 0x12D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĭ */
+ { 0x12F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* į */
+
+ { 0x130, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* İ */
+ { 0x133, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ij */
+ { 0x134, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĵ */
+ { 0x135, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĵ */
+ { 0x139, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĺ */
+ { 0x13A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĺ */
+
+ { 0x143, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ń */
+ { 0x144, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ń */
+ { 0x147, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ň */
+ { 0x148, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ň */
+ { 0x14C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ō */
+ { 0x14D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ō */
+ { 0x14E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŏ */
+ { 0x14F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŏ */
+
+ { 0x154, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŕ */
+ { 0x155, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŕ */
+ { 0x158, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ř */
+ { 0x159, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ř */
+ { 0x15A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ś */
+ { 0x15B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ś */
+ { 0x15C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŝ */
+ { 0x15D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŝ */
+
+ { 0x160, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Š */
+ { 0x161, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* š */
+ { 0x164, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ť */
+ { 0x168, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ũ */
+ { 0x169, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ũ */
+ { 0x16A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ū */
+ { 0x16B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ū */
+ { 0x16C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŭ */
+ { 0x16D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŭ */
+
+ { 0x174, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŵ */
+ { 0x175, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŵ */
+ { 0x176, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŷ */
+ { 0x177, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŷ */
+ { 0x179, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ź */
+ { 0x17A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ź */
+ { 0x17B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ż */
+ { 0x17C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ż */
+ { 0x17D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ž */
+ { 0x17E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 } /* ž */
+ };
+
+
+/* END */
diff --git a/src/autofit/afadjust.h b/src/autofit/afadjust.h
new file mode 100644
index 000000000..bee002a3e
--- /dev/null
+++ b/src/autofit/afadjust.h
@@ -0,0 +1,66 @@
+/****************************************************************************
+ *
+ * afadjust.h
+ *
+ * Auto-fitter routines to adjust components based on charcode (header).
+ *
+ * Copyright (C) 2023-2024 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Craig White <gerzytet@gmail.com>.
+ *
+ * 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.
+ *
+ */
+
+
+#ifndef AFADJUST_H_
+#define AFADJUST_H_
+
+#include <freetype/fttypes.h>
+
+#include "afglobal.h"
+#include "aftypes.h"
+
+
+FT_BEGIN_HEADER
+
+
+ /* The type of adjustment that should be done to prevent cases where */
+ /* two parts of a character stacked vertically merge, even though they */
+ /* should be separate. */
+ typedef enum AF_VerticalSeparationAdjustmentType_
+ {
+ /* This means that the hinter should find the topmost contour and push */
+ /* it up until its lowest point is one pixel above the highest point */
+ /* not part of that contour. */
+ AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP,
+
+ /* This is the opposite direction. The hinter should find the */
+ /* bottommost contour and push it down until there is a one-pixel gap. */
+ AF_VERTICAL_ADJUSTMENT_BOTTOM_CONTOUR_DOWN,
+
+ AF_VERTICAL_ADJUSTMENT_NONE
+
+ } AF_VerticalSeparationAdjustmentType;
+
+
+ typedef struct AF_AdjustmentDatabaseEntry_
+ {
+ FT_UInt32 codepoint;
+ AF_VerticalSeparationAdjustmentType vertical_separation_adjustment_type;
+ FT_Bool apply_tilde;
+
+ } AF_AdjustmentDatabaseEntry;
+
+
+FT_END_HEADER
+
+#endif /* AFADJUST_H_ */
+
+
+/* END */
diff --git a/src/autofit/autofit.c b/src/autofit/autofit.c
index de5ec7c7c..9d4540e0a 100644
--- a/src/autofit/autofit.c
+++ b/src/autofit/autofit.c
@@ -19,6 +19,7 @@
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include "ft-hb.c"
+#include "afadjust.c"
#include "afblue.c"
#include "afcjk.c"
#include "afdummy.c"
diff --git a/src/autofit/rules.mk b/src/autofit/rules.mk
index 682046f47..fb6265cee 100644
--- a/src/autofit/rules.mk
+++ b/src/autofit/rules.mk
@@ -28,7 +28,8 @@ AUTOF_COMPILE := $(CC) $(ANSIFLAGS)
\
# AUTOF driver sources (i.e., C files)
#
-AUTOF_DRV_SRC := $(AUTOF_DIR)/afblue.c \
+AUTOF_DRV_SRC := $(AUTOF_DIR)/afadjust.c \
+ $(AUTOF_DIR)/afblue.c \
$(AUTOF_DIR)/afcjk.c \
$(AUTOF_DIR)/afdummy.c \
$(AUTOF_DIR)/afglobal.c \
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- [freetype2] adjust fe3170070 2/7: [autofit] Add adjustment database.,
Werner Lemberg <=