kc3-lang/freetype/src/base/ftstream.h
-
Show log
Commit
-
Hash : d186a361
Author :
Date : 2000-05-02T17:41:41
various updates to reduce the compilation warnings
-
src/base/ftstream.h
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285
#ifndef FTSTREAM_H #define FTSTREAM_H #include <ftobjs.h> /* format of an 8-bit frame_op value = [ xxxxx | e | s ] */ /* where s is set to 1 when the value is signed.. */ /* where e is set to 1 when the value is little-endian */ /* xxxxx is a command */ #define FT_FRAME_OP_SHIFT 2 #define FT_FRAME_OP_SIGNED 1 #define FT_FRAME_OP_LITTLE 2 #define FT_FRAME_OP_COMMAND(x) (x >> FT_FRAME_OP_SHIFT) #define FT_MAKE_FRAME_OP( command, little, sign ) \ ((command << FT_FRAME_OP_SHIFT) | (little << 1) | sign) #define FT_FRAME_OP_END 0 #define FT_FRAME_OP_START 1 /* start a new frame */ #define FT_FRAME_OP_BYTE 2 /* read 1-byte value */ #define FT_FRAME_OP_SHORT 3 /* read 2-byte value */ #define FT_FRAME_OP_LONG 4 /* read 4-byte value */ #define FT_FRAME_OP_OFF3 5 /* read 3-byte value */ typedef enum FT_Frame_Op_ { ft_frame_end = 0, ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ), ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ), ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ), ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ), ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ), ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ), ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ), ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ), ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ), ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ), ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ), ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ), ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ), ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ), ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ) } FT_Frame_Op; typedef struct FT_Frame_Field_ { FT_Frame_Op value; char size; FT_UShort offset; } FT_Frame_Field; /* make-up a FT_Frame_Field out of a structure type and a field name */ #define FT_FIELD_REF(s,f) (((s*)0)->f) #define FT_FRAME_FIELD( frame_op, struct_type, field ) \ { \ frame_op, \ sizeof(FT_FIELD_REF(struct_type,field)), \ (FT_UShort)(char*)&FT_FIELD_REF(struct_type,field) } #define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 } #define FT_FRAME_START(s) { ft_frame_start, 0, s } #define FT_FRAME_END { ft_frame_end, 0, 0 } #define FT_FRAME_LONG(s,f) FT_FRAME_FIELD( ft_frame_long_be, s, f ) #define FT_FRAME_ULONG(s,f) FT_FRAME_FIELD( ft_frame_ulong_be, s, f ) #define FT_FRAME_SHORT(s,f) FT_FRAME_FIELD( ft_frame_short_be, s, f ) #define FT_FRAME_USHORT(s,f) FT_FRAME_FIELD( ft_frame_ushort_be, s, f ) #define FT_FRAME_BYTE(s,f) FT_FRAME_FIELD( ft_frame_byte, s, f ) #define FT_FRAME_CHAR(s,f) FT_FRAME_FIELD( ft_frame_schar, s, f ) #define FT_FRAME_LONG_LE(s,f) FT_FRAME_FIELD( ft_frame_long_le, s, f ) #define FT_FRAME_ULONG_LE(s,f) FT_FRAME_FIELD( ft_frame_ulong_le, s, f ) #define FT_FRAME_SHORT_LE(s,f) FT_FRAME_FIELD( ft_frame_short_le, s, f ) #define FT_FRAME_USHORT_LE(s,f) FT_FRAME_FIELD( ft_frame_ushort_le, s, f ) /*************************************************************************/ /* */ /* integer extraction macros - the `buffer' parameter must ALWAYS be of */ /* type `char*' or equivalent (1-byte elements). */ /* */ #define NEXT_Char(buffer) ((signed char)*buffer++) #define NEXT_Byte(buffer) ((unsigned char)*buffer++) #define NEXT_Short(buffer) ( buffer += 2, \ ( (short)((signed char)buffer[-2] << 8) | \ (unsigned char)buffer[-1] ) ) #define NEXT_UShort(buffer) ((unsigned short)NEXT_Short(buffer)) #define NEXT_Offset(buffer) ( buffer += 3, \ ( ((long)(signed char)buffer[-3] << 16) | \ ((long)(unsigned char)buffer[-2] << 8) | \ (long)(unsigned char)buffer[-1] ) ) #define NEXT_UOffset(buffer) ((unsigned long)NEXT_Offset(buffer)) #define NEXT_Long(buffer) ( buffer += 4, \ ( ((long)(signed char)buffer[-4] << 24) | \ ((long)(unsigned char)buffer[-3] << 16) | \ ((long)(unsigned char)buffer[-2] << 8) | \ (long)(unsigned char)buffer[-1] ) ) #define NEXT_ULong(buffer) ((unsigned long)NEXT_Long(buffer)) #define NEXT_ShortLE(buffer) ( buffer += 2, \ ( (short)((signed char)buffer[-1] << 8) | \ (unsigned char)buffer[-2] ) ) #define NEXT_UShortLE(buffer) ((unsigned short)NEXT_ShortLE(buffer)) #define NEXT_OffsetLE(buffer) ( buffer += 3, \ ( ((long)(signed char)buffer[-1] << 16) | \ ((long)(unsigned char)buffer[-2] << 8) | \ (long)(unsigned char)buffer[-3] ) ) #define NEXT_UOffsetLE(buffer) ((unsigned long)NEXT_OffsetLE(buffer)) #define NEXT_LongLE(buffer) ( buffer += 4, \ ( ((long)(signed char)buffer[-1] << 24) | \ ((long)(unsigned char)buffer[-2] << 16) | \ ((long)(unsigned char)buffer[-3] << 8) | \ (long)(unsigned char)buffer[-4] ) ) #define NEXT_ULongLE(buffer) ((unsigned long)NEXT_LongLE(buffer)) /*************************************************************************/ /* */ /* Each GET_xxxx() macro uses an implicit `stream' variable. */ /* */ #define FT_GET_MACRO( func, type ) ( (type)func(stream) ) #define GET_Char() FT_GET_MACRO( FT_Get_Char, FT_Char ) #define GET_Byte() FT_GET_MACRO( FT_Get_Char, FT_Byte ) #define GET_Short() FT_GET_MACRO( FT_Get_Short, FT_Short ) #define GET_UShort() FT_GET_MACRO( FT_Get_Short, FT_UShort ) #define GET_Offset() FT_GET_MACRO( FT_Get_Offset, FT_Long ) #define GET_UOffset() FT_GET_MACRO( FT_Get_Offset, FT_ULong ) #define GET_Long() FT_GET_MACRO( FT_Get_Long, FT_Long ) #define GET_ULong() FT_GET_MACRO( FT_Get_Long, FT_ULong ) #define GET_Tag4() FT_GET_MACRO( FT_Get_Long, FT_ULong ) #define FT_READ_MACRO( func, type, var ) \ ( var = (type)func( stream, &error ), \ error != FT_Err_Ok ) #define READ_Byte( var ) FT_READ_MACRO( FT_Read_Char, FT_Byte, var ) #define READ_Char( var ) FT_READ_MACRO( FT_Read_Char, FT_Char, var ) #define READ_Short( var ) FT_READ_MACRO( FT_Read_Short, FT_Short, var ) #define READ_UShort( var ) FT_READ_MACRO( FT_Read_Short, FT_UShort, var ) #define READ_Offset( var ) FT_READ_MACRO( FT_Read_Offset, FT_Long, var ) #define READ_UOffset( var ) FT_READ_MACRO( FT_Read_Offset, FT_ULong, var ) #define READ_Long( var ) FT_READ_MACRO( FT_Read_Long, FT_Long, var ) #define READ_ULong( var ) FT_READ_MACRO( FT_Read_Long, FT_ULong, var ) BASE_DEF void FT_New_Memory_Stream( FT_Library library, void* base, unsigned long size, FT_Stream stream ); BASE_DEF FT_Error FT_Seek_Stream( FT_Stream stream, FT_ULong pos ); BASE_DEF FT_Error FT_Skip_Stream( FT_Stream stream, FT_Long distance ); BASE_DEF FT_Long FT_Stream_Pos( FT_Stream stream ); BASE_DEF FT_Error FT_Read_Stream( FT_Stream stream, void* buffer, FT_ULong count ); BASE_DEF FT_Error FT_Read_Stream_At( FT_Stream stream, FT_ULong pos, void* buffer, FT_ULong count ); BASE_DEF FT_Error FT_Access_Frame( FT_Stream stream, FT_ULong count ); BASE_DEF void FT_Forget_Frame( FT_Stream stream ); BASE_DEF FT_Char FT_Get_Char( FT_Stream stream ); BASE_DEF FT_Short FT_Get_Short( FT_Stream stream ); BASE_DEF FT_Long FT_Get_Offset( FT_Stream stream ); BASE_DEF FT_Long FT_Get_Long( FT_Stream stream ); BASE_DEF FT_Char FT_Read_Char( FT_Stream stream, FT_Error* error ); BASE_DEF FT_Short FT_Read_Short( FT_Stream stream, FT_Error* error ); BASE_DEF FT_Long FT_Read_Offset( FT_Stream stream, FT_Error* error ); BASE_DEF FT_Long FT_Read_Long( FT_Stream stream, FT_Error* error ); BASE_DEF FT_Error FT_Read_Fields( FT_Stream stream, const FT_Frame_Field* fields, void* structure ); #define USE_Stream( resource, stream ) \ FT_SET_ERROR( FT_Open_Stream( resource, stream ) ) #define DONE_Stream( stream ) \ FT_Done_Stream( stream ) #define ACCESS_Frame( size ) \ FT_SET_ERROR( FT_Access_Frame( stream, size ) ) #define ACCESS_Compressed_Frame( size ) \ FT_SET_ERROR( FT_Access_Compressed_Frame( stream, size ) ) #define FORGET_Frame() \ FT_Forget_Frame( stream ) #define FILE_Seek( position ) \ FT_SET_ERROR( FT_Seek_Stream( stream, position ) ) #define FILE_Skip( distance ) \ FT_SET_ERROR( FT_Skip_Stream( stream, distance ) ) #define FILE_Pos() \ FT_Stream_Pos( stream ) #define FILE_Read( buffer, count ) \ FT_SET_ERROR( FT_Read_Stream( stream, \ (FT_Char*)buffer, \ count ) ) #define FILE_Read_At( position, buffer, count ) \ FT_SET_ERROR( FT_Read_Stream_At( stream, \ position, \ (FT_Char*)buffer, \ count ) ) #define READ_Fields( fields, object ) \ ((error = FT_Read_Fields( stream, fields, object )) != FT_Err_Ok) #endif /* FTSTREAM_H */