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/* Copyright (c) 1987, 1989, 2012 University of Maryland Department of
Computer Science.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation, the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions: The above copyright notice, this permission
notice and the disclaimer statement shall be included in all copies
or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Macros to convert DVI opcodes to (hopefully) simpler values.
*/
/*
* Large range types---code may be any value (including EOF).
*/
#define DVI_IsChar(code) ((ui32)(code) < 128)
#define DVI_IsFont(code) ((code) >= 171 && (code) < 235)
/*
* Symbolic names for generic types (for things with parameters).
* These are obtained via the macro DVI_DT(int c), where 0 <= c <= 255.
*/
#define DT_CHAR 0
#define DT_SET 1
#define DT_SETRULE 2
#define DT_PUT 3
#define DT_PUTRULE 4
#define DT_NOP 5
#define DT_BOP 6
#define DT_EOP 7
#define DT_PUSH 8
#define DT_POP 9
#define DT_RIGHT 10
#define DT_W0 11
#define DT_W 12
#define DT_X0 13
#define DT_X 14
#define DT_DOWN 15
#define DT_Y0 16
#define DT_Y 17
#define DT_Z0 18
#define DT_Z 19
#define DT_FNTNUM 20
#define DT_FNT 21
#define DT_XXX 22
#define DT_FNTDEF 23
#define DT_PRE 24
#define DT_POST 25
#define DT_POSTPOST 26
#ifdef ASCIIPTEX
#define DT_DIR 27
#define DT_UNDEF 28
#else /* !ASCIIPTEX */
#define DT_UNDEF 27
#endif /* !ASCIIPTEX */
/*
* Symbolic names for parameter lengths, obtained via the macro
* DVL_OpLen(int c).
*
* N.B.: older drivers may assume that 0 => none, 1-4 => 1-4 bytes
* and 5-7 => unsigned version of 1-4---so DO NOT change these values!
*/
#define DPL_NONE 0
#define DPL_SGN1 1
#define DPL_SGN2 2
#define DPL_SGN3 3
#define DPL_SGN4 4
#define DPL_UNS1 5
#define DPL_UNS2 6
#define DPL_UNS3 7
/* there are no unsigned four byte parameters */
#define DVI_OpLen(code) (dvi_oplen[code])
#define DVI_DT(code) (dvi_dt[code])
extern char dvi_oplen[];
extern char dvi_dt[];
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