/* Copyright (C) 1990, 1992, 1993 Aladdin Enterprises.  All rights reserved.
  
  This file is part of Aladdin Ghostscript.
  
  Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND.  No author
  or distributor accepts any responsibility for the consequences of using it,
  or for whether it serves any particular purpose or works at all, unless he
  or she says so in writing.  Refer to the Aladdin Ghostscript Free Public
  License (the "License") for full details.
  
  Every copy of Aladdin Ghostscript must include a copy of the License,
  normally in a plain ASCII text file named PUBLIC.  The License grants you
  the right to copy, modify and redistribute Aladdin Ghostscript, but only
  under certain conditions described in the License.  Among other things, the
  License requires that the copyright notice and this notice be preserved on
  all copies.
*/

/* gstype1.h */
/* Client interface to Adobe Type 1 font routines for Ghostscript library */

/* ------ Normal client interface ------ */

#define crypt_charstring_seed 4330
typedef struct gs_type1_state_s gs_type1_state;
#ifndef gs_show_enum_s_DEFINED
struct gs_show_enum_s;
#endif
#ifndef gs_type1_data_s_DEFINED
struct gs_type1_data_s;
#endif
int gs_type1_init(P6(gs_type1_state *pis, struct gs_show_enum_s *penum,
		     const gs_point *psbpt, int charpath_flag, int paint_type,
		     struct gs_type1_data_s *pdata));
/*
 * Continue interpreting a Type 1 CharString.
 * If str != 0, it is taken as the byte string to interpret.
 * Return 0 on successful completion, <0 on error,
 * or >0 when client intervention is required (or allowed).
 * The int * argument is where the character is stored for seac,
 * or the othersubr # for callothersubr.
 */
#define type1_result_sbw 1		/* allow intervention after [h]sbw */
#define type1_result_seac 2
#define type1_result_callothersubr 3
int gs_type1_interpret(P3(gs_type1_state *, const byte *, int *));

/* ------ CharString representation ------ */

/* Define the charstring command set */
typedef enum {
		c_undef0 = 0,
	c_hstem = 1,
		c_undef2 = 2,
	c_vstem = 3,
	c_vmoveto = 4,
	c_rlineto = 5,
	c_hlineto = 6,
	c_vlineto = 7,
	c_rrcurveto = 8,
	c_closepath = 9,
	c_callsubr = 10,
	c_return = 11,
	c_escape = 12,			/* extends the command set */
	c_hsbw = 13,
	c_endchar = 14,
	c_undoc15 = 15,			/* An obsolete and undocumented */
					/* 'moveto' command, */
					/* used in some Adobe fonts. */
		c_undef16 = 16,
		c_undef17 = 17,
		c_undef18 = 18,
		c_undef19 = 19,
		c_undef20 = 20,
	c_rmoveto = 21,
	c_hmoveto = 22,
		c_undef23 = 23,
		c_undef24 = 24,
		c_undef25 = 25,
		c_undef26 = 26,
		c_undef27 = 27,
		c_undef28 = 28,
		c_undef29 = 29,
	c_vhcurveto = 30,
	c_hvcurveto = 31,

		/* Values from 32 to 246 represent small integers. */
	c_num1 = 32,
#define c_value_num1(ch) ((int)(byte)(ch) - 139)
		/* We have to declare all these values in the enumeration */
		/* so that some compilers won't complain when we use them */
		/* in the big switch statement. */
#define c_v8(v,a,b,c,d,e,f,g,h)\
  a=v, b=v+1, c=v+2, d=v+3, e=v+4, f=v+5, g=v+6, h=v+7
#define c_v9(v,a,b,c,d,e,f,g,h,i)\
  c_v8(v,a,b,c,d,e,f,g,h), i=v+8
#define c_v10(v,a,b,c,d,e,f,g,h,i,j)\
  c_v9(v,a,b,c,d,e,f,g,h,i), j=v+9
	c_v8( 32, c_n107,c_n106,c_n105,c_n104,c_n103,c_n102,c_n101,c_n100),
	c_v10(40, c_n99,c_n98,c_n97,c_n96,c_n95,c_n94,c_n93,c_n92,c_n91,c_n90),
	c_v10(50, c_n89,c_n88,c_n87,c_n86,c_n85,c_n84,c_n83,c_n82,c_n81,c_n80),
	c_v10(60, c_n79,c_n78,c_n77,c_n76,c_n75,c_n74,c_n73,c_n72,c_n71,c_n70),
	c_v10(70, c_n69,c_n68,c_n67,c_n66,c_n65,c_n64,c_n63,c_n62,c_n61,c_n60),
	c_v10(80, c_n59,c_n58,c_n57,c_n56,c_n55,c_n54,c_n53,c_n52,c_n51,c_n50),
	c_v10(90, c_n49,c_n48,c_n47,c_n46,c_n45,c_n44,c_n43,c_n42,c_n41,c_n40),
	c_v10(100,c_n39,c_n38,c_n37,c_n36,c_n35,c_n34,c_n33,c_n32,c_n31,c_n30),
	c_v10(110,c_n29,c_n28,c_n27,c_n26,c_n25,c_n24,c_n23,c_n22,c_n21,c_n20),
	c_v10(120,c_n19,c_n18,c_n17,c_n16,c_n15,c_n14,c_n13,c_n12,c_n11,c_n10),
	c_v9( 130, c_n9, c_n8, c_n7, c_n6, c_n5, c_n4, c_n3, c_n2, c_n1),
	c_v10(139,  c_0,  c_1,  c_2,  c_3,  c_4,  c_5,  c_6,  c_7,  c_8,  c_9),
	c_v10(149, c_10, c_11, c_12, c_13, c_14, c_15, c_16, c_17, c_18, c_19),
	c_v10(159, c_20, c_21, c_22, c_23, c_24, c_25, c_26, c_27, c_28, c_29),
	c_v10(169, c_30, c_31, c_32, c_33, c_34, c_35, c_36, c_37, c_38, c_39),
	c_v10(179, c_40, c_41, c_42, c_43, c_44, c_45, c_46, c_47, c_48, c_49),
	c_v10(189, c_50, c_51, c_52, c_53, c_54, c_55, c_56, c_57, c_58, c_59),
	c_v10(199, c_60, c_61, c_62, c_63, c_64, c_65, c_66, c_67, c_68, c_69),
	c_v10(209, c_70, c_71, c_72, c_73, c_74, c_75, c_76, c_77, c_78, c_79),
	c_v10(219, c_80, c_81, c_82, c_83, c_84, c_85, c_86, c_87, c_88, c_89),
	c_v10(229, c_90, c_91, c_92, c_93, c_94, c_95, c_96, c_97, c_98, c_99),
	c_v8( 239,c_100,c_101,c_102,c_103,c_104,c_105,c_106,c_107),

		/* The next 4 values represent 2-byte positive integers. */
	c_pos2_0 = 247,
	c_pos2_1 = 248,
	c_pos2_2 = 249,
	c_pos2_3 = 250,
#define c_value_pos2(c1,c2)\
  (((int)(byte)((c1) - (int)c_pos2_0) << 8) + (int)(byte)(c2) + 108)

		/* The next 4 values represent 2-byte negative integers. */
	c_neg2_0 = 251,
	c_neg2_1 = 252,
	c_neg2_2 = 253,
	c_neg2_3 = 254,
#define c_value_neg2(c1,c2)\
  -(((int)(byte)((c1) - (int)c_neg2_0) << 8) + (int)(byte)(c2) + 108)

		/* Finally, there is an escape for 4-byte 2's complement */
		/* numbers in big-endian order. */
	c_num4 = 255
} char_command;
typedef enum {				/* extended commands */
	ce_dotsection = 0,
	ce_vstem3 = 1,
	ce_hstem3 = 2,
	ce_seac = 6,
	ce_sbw = 7,
	ce_div = 12,
	ce_undoc15 = 15,		/* An obsolete and undocumented */
					/* 'addifgt' command, */
					/* used in some Adobe fonts. */
	ce_callothersubr = 16,
	ce_pop = 17,
	ce_setcurrentpoint = 33
} char_extended_command;
