ReactOS 0.4.15-dev-7674-gc0b4db1
gxvlcar.c
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1/***************************************************************************/
2/* */
3/* gxvlcar.c */
4/* */
5/* TrueTypeGX/AAT lcar table validation (body). */
6/* */
7/* Copyright 2004-2018 by */
8/* suzuki toshiya, Masatake YAMATO, Red Hat K.K., */
9/* David Turner, Robert Wilhelm, and Werner Lemberg. */
10/* */
11/* This file is part of the FreeType project, and may only be used, */
12/* modified, and distributed under the terms of the FreeType project */
13/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
14/* this file you indicate that you have read the license and */
15/* understand and accept it fully. */
16/* */
17/***************************************************************************/
18
19/***************************************************************************/
20/* */
21/* gxvalid is derived from both gxlayout module and otvalid module. */
22/* Development of gxlayout is supported by the Information-technology */
23/* Promotion Agency(IPA), Japan. */
24/* */
25/***************************************************************************/
26
27
28#include "gxvalid.h"
29#include "gxvcommn.h"
30
31
32 /*************************************************************************/
33 /* */
34 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
35 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
36 /* messages during execution. */
37 /* */
38#undef FT_COMPONENT
39#define FT_COMPONENT trace_gxvlcar
40
41
42 /*************************************************************************/
43 /*************************************************************************/
44 /***** *****/
45 /***** Data and Types *****/
46 /***** *****/
47 /*************************************************************************/
48 /*************************************************************************/
49
50 typedef struct GXV_lcar_DataRec_
51 {
53
55
56
57#define GXV_LCAR_DATA( FIELD ) GXV_TABLE_DATA( lcar, FIELD )
58
59
60 /*************************************************************************/
61 /*************************************************************************/
62 /***** *****/
63 /***** UTILITY FUNCTIONS *****/
64 /***** *****/
65 /*************************************************************************/
66 /*************************************************************************/
67
68 static void
70 FT_UShort glyph,
71 GXV_Validator gxvalid )
72 {
73 GXV_NAME_ENTER( "partial" );
74
75 if ( GXV_LCAR_DATA( format ) != 1 )
76 goto Exit;
77
78 gxv_ctlPoint_validate( glyph, (FT_UShort)partial, gxvalid );
79
80 Exit:
82 }
83
84
85 static void
87 GXV_LookupValueCPtr value_p,
88 GXV_Validator gxvalid )
89 {
90 FT_Bytes p = gxvalid->root->base + value_p->u;
91 FT_Bytes limit = gxvalid->root->limit;
93 FT_Short partial;
95
96
97 GXV_NAME_ENTER( "element in lookupTable" );
98
99 GXV_LIMIT_CHECK( 2 );
101
102 GXV_LIMIT_CHECK( 2 * count );
103 for ( i = 0; i < count; i++ )
104 {
105 partial = FT_NEXT_SHORT( p );
106 gxv_lcar_partial_validate( partial, glyph, gxvalid );
107 }
108
109 GXV_EXIT;
110 }
111
112
113 /*
114 +------ lcar --------------------+
115 | |
116 | +===============+ |
117 | | lookup header | |
118 | +===============+ |
119 | | BinSrchHeader | |
120 | +===============+ |
121 | | lastGlyph[0] | |
122 | +---------------+ |
123 | | firstGlyph[0] | | head of lcar sfnt table
124 | +---------------+ | +
125 | | offset[0] | -> | offset [byte]
126 | +===============+ | +
127 | | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte]
128 | +---------------+ |
129 | | firstGlyph[1] | |
130 | +---------------+ |
131 | | offset[1] | |
132 | +===============+ |
133 | |
134 | .... |
135 | |
136 | 16bit value array |
137 | +===============+ |
138 +------| value | <-------+
139 | ....
140 |
141 |
142 |
143 |
144 |
145 +----> lcar values...handled by lcar callback function
146 */
147
150 GXV_LookupValueCPtr base_value_p,
151 FT_Bytes lookuptbl_limit,
152 GXV_Validator gxvalid )
153 {
154 FT_Bytes p;
158
159 FT_UNUSED( lookuptbl_limit );
160
161 /* XXX: check range? */
162 offset = (FT_UShort)( base_value_p->u +
163 relative_gindex * sizeof ( FT_UShort ) );
164 p = gxvalid->root->base + offset;
165 limit = gxvalid->root->limit;
166
167 GXV_LIMIT_CHECK ( 2 );
168 value.u = FT_NEXT_USHORT( p );
169
170 return value;
171 }
172
173
174 /*************************************************************************/
175 /*************************************************************************/
176 /***** *****/
177 /***** lcar TABLE *****/
178 /***** *****/
179 /*************************************************************************/
180 /*************************************************************************/
181
182 FT_LOCAL_DEF( void )
185 FT_Validator ftvalid )
186 {
187 FT_Bytes p = table;
188 FT_Bytes limit = 0;
189 GXV_ValidatorRec gxvalidrec;
190 GXV_Validator gxvalid = &gxvalidrec;
191
192 GXV_lcar_DataRec lcarrec;
193 GXV_lcar_Data lcar = &lcarrec;
194
196
197
198 gxvalid->root = ftvalid;
199 gxvalid->table_data = lcar;
200 gxvalid->face = face;
201
202 FT_TRACE3(( "validating `lcar' table\n" ));
203 GXV_INIT;
204
205 GXV_LIMIT_CHECK( 4 + 2 );
208
209 if ( version != 0x00010000UL)
211
212 if ( GXV_LCAR_DATA( format ) > 1 )
214
218 gxv_LookupTable_validate( p, limit, gxvalid );
219
220 FT_TRACE4(( "\n" ));
221 }
222
223
224/* END */
WORD face[3]
Definition: mesh.c:4747
static const WCHAR version[]
Definition: asmname.c:66
#define FT_LOCAL_DEF(x)
Definition: ftconfig.h:388
#define FT_UNUSED(arg)
Definition: ftconfig.h:101
#define FT_TRACE3(varformat)
Definition: ftdebug.h:160
#define FT_TRACE4(varformat)
Definition: ftdebug.h:161
#define FT_NEXT_USHORT(buffer)
Definition: ftstream.h:226
#define FT_NEXT_LONG(buffer)
Definition: ftstream.h:235
#define FT_NEXT_SHORT(buffer)
Definition: ftstream.h:223
signed long FT_Fixed
Definition: fttypes.h:288
unsigned short FT_UShort
Definition: fttypes.h:209
signed short FT_Short
Definition: fttypes.h:198
const FT_Byte * FT_Bytes
Definition: fttypes.h:165
#define FT_INVALID_FORMAT
Definition: ftvalid.h:142
typedefFT_BEGIN_HEADER struct FT_ValidatorRec_ volatile * FT_Validator
Definition: ftvalid.h:42
GLuint GLuint GLsizei count
Definition: gl.h:1545
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: gl.h:1546
GLenum GLuint GLint GLenum face
Definition: glext.h:7025
GLint limit
Definition: glext.h:10326
GLfloat GLfloat p
Definition: glext.h:8902
GLintptr offset
Definition: glext.h:5920
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
gxv_ctlPoint_validate(FT_UShort gid, FT_UShort ctl_point, GXV_Validator gxvalid)
Definition: gxvcommn.c:846
gxv_LookupTable_validate(FT_Bytes table, FT_Bytes limit, GXV_Validator gxvalid)
Definition: gxvcommn.c:755
#define GXV_NAME_ENTER(name)
Definition: gxvcommn.h:301
@ GXV_LOOKUPVALUE_UNSIGNED
Definition: gxvcommn.h:100
#define GXV_INIT
Definition: gxvcommn.h:300
#define GXV_EXIT
Definition: gxvcommn.h:302
#define GXV_LIMIT_CHECK(_count)
Definition: gxvcommn.h:272
struct GXV_lcar_DataRec_ * GXV_lcar_Data
static void gxv_lcar_partial_validate(FT_Short partial, FT_UShort glyph, GXV_Validator gxvalid)
Definition: gxvlcar.c:69
gxv_lcar_validate(FT_Bytes table, FT_Face face, FT_Validator ftvalid)
Definition: gxvlcar.c:183
static void gxv_lcar_LookupValue_validate(FT_UShort glyph, GXV_LookupValueCPtr value_p, GXV_Validator gxvalid)
Definition: gxvlcar.c:86
struct GXV_lcar_DataRec_ GXV_lcar_DataRec
static GXV_LookupValueDesc gxv_lcar_LookupFmt4_transit(FT_UShort relative_gindex, GXV_LookupValueCPtr base_value_p, FT_Bytes lookuptbl_limit, GXV_Validator gxvalid)
Definition: gxvlcar.c:149
#define GXV_LCAR_DATA(FIELD)
Definition: gxvlcar.c:57
static void Exit(void)
Definition: sock.c:1330
GXV_Lookup_Fmt4_Transit_Func lookupfmt4_trans
Definition: gxvcommn.h:248
FT_Validator root
Definition: gxvcommn.h:239
void * table_data
Definition: gxvcommn.h:242
GXV_Lookup_Value_Validate_Func lookupval_func
Definition: gxvcommn.h:247
GXV_LookupValue_SignSpec lookupval_sign
Definition: gxvcommn.h:246
FT_UShort format
Definition: gxvlcar.c:52
Definition: pdh_main.c:94
ActualNumberDriverObjects * sizeof(PDRIVER_OBJECT)) PDRIVER_OBJECT *DriverObjectList