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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Pixrect implementation utilities
*/
#ifndef _SYS_PR_IMPL_UTIL_H
#define _SYS_PR_IMPL_UTIL_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SunOS 1.10 */
#ifdef __cplusplus
extern "C" {
#endif
/* Reiser cpp concatenation macros (which don't work in ANSI-C) */
#if defined(__STDC__) && !defined(__LIBCPP__)
#ifndef _CAT
#define _CAT(a, b) a##b
#endif
#else /* __STDC__ */
#ifndef _CAT
#undef _IDENT
#define _IDENT(x) x
#define _CAT(a, b) _IDENT(a)b
#endif
#endif /* __STDC__ */
/* code selection macros */
#define IFTRUE(a, b) a
#define IFFALSE(a, b) b
/* and together multiple options */
#define IFAND IFAND2
#define IFAND2(opt1, opt2, a, b) opt1(opt2(a, b), b)
#define IFAND3(opt1, opt2, opt3, a, b) opt1(opt2(opt3(a, b), b), b)
#define IFAND4(opt1, opt2, opt3, opt4, a, b) \
opt1(opt2(opt3(opt4(a, b), b), b), b)
#define IFAND5(opt1, opt2, opt3, opt4, opt5, a, b) \
opt1(opt2(opt3(opt4(opt5(a, b), b), b), b), b)
#define IFAND6(opt1, opt2, opt3, opt4, opt5, opt6, a, b) \
opt1(opt2(opt3(opt4(opt5(opt6(a, b), b), b), b), b), b)
#ifdef _KERNEL
#define IFKERNEL IFTRUE
#else
#define IFKERNEL IFFALSE
#endif
/* lint */
#ifdef __lint
#define IFLINT IFTRUE
int _ZERO_; /* "constant in conditional context" workaround */
#define _ONE_ (!_ZERO_)
int _loop; /* "_loop redefinition hides earlier one" */
#else /* __lint */
#define IFLINT IFFALSE
#define _ZERO_ 0
#define _ONE_ 1
#endif /* __lint */
/* portability aids */
#ifdef mc68000
#define IF68000 IFTRUE
typedef caddr_t INT_T; /* pseudo-integer type (address register) */
typedef ulong_t PTR_T; /* pseudo-pointer type (data register) */
typedef short LOOP_T; /* loop variable (for dbra loops) */
#define LOOP_DECR(var) (--(var) != -1)
#else /* mc68000 */
#define IF68000 IFFALSE
typedef int INT_T;
typedef caddr_t PTR_T;
typedef int LOOP_T;
#define LOOP_DECR(var) (--(var) >= 0)
#endif /* mc68000 */
#if defined(__sparc)
#define IFSPARC IFTRUE
#else
#define IFSPARC IFFALSE
#endif
/* true if we can make 32 bit accesses on 16 bit boundaries */
#ifndef SHORT_ALIGN
#define SHORT_ALIGN (!defined(__sparc))
#endif
#if SHORT_ALIGN
#define IFSHORT_ALIGN IFTRUE
#else
#define IFSHORT_ALIGN IFFALSE
#endif
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN (defined(__i386) || defined(__amd64))
#endif
#if LITTLE_ENDIAN
#define ENDIAN IFTRUE
#else
#define ENDIAN IFFALSE
#endif
/*
* SunOS release number
* warning: these tests are fragile
*/
#if defined(__sun) && !defined(SUNOS)
#ifdef _sys_types_h
#define SUNOS 41
#else /* _sys_types_h */
#ifdef NFDBITS
#define SUNOS 40
#else /* NFDBITS */
#define SUNOS 35
#endif /* NFDBITS */
#endif /* _sys_types_h */
#endif
#if SUNOS >= 40
#define IFSUNOS4 IFTRUE
#else
#define IFSUNOS4 IFFALSE
#endif
#if SUNOS >= 41
#define IFSUNOS41 IFTRUE
#else
#define IFSUNOS41 IFFALSE
#endif
/*
* misc. macros
*/
/* statement macro */
#define _STMT(op) do { op } while (_ZERO_)
/* loop macros */
#define PR_LOOPVP(var, op) do { op; } while (LOOP_DECR(var))
#define PR_LOOPV(var, op) _STMT(while (LOOP_DECR(var)) { op; })
#define PR_LOOPP(count, op) _STMT(\
IFLINT(, register LOOP_T) _loop = (count); PR_LOOPVP(_loop, op); \
)
#define PR_LOOP(count, op) _STMT(\
IFLINT(, register LOOP_T) _loop = (count); PR_LOOPV(_loop, op); \
)
/* pointer manipulation */
#define PTR_ADD(p, incr) ((caddr_t)(p) + (incr))
#define PTR_INCR(type, p, incr) (p = (type) ((caddr_t)(p) + (incr)))
/* unshifted pixrect op codes */
#define PIX_OPSRC (12)
#define PIX_OPDST (10)
#define PIX_OPNOT(op) ((op) ^ 15)
#define PIX_OPCLR (0)
#define PIX_OPSET (15)
/* extract color and op code fields */
#define PIXOP_COLOR(op) ((op) >> 5)
#define PIXOP_OP(op) ((op) >> 1 & 15)
/* reverse video src or dst */
#define PIX_OP_REVERSESRC(op) (((op) & 3) << 2 | (op) >> 2 & 3)
#define PIX_OP_REVERSEDST(op) ((~(op) & 5) << 1 | ~(op) >> 1 & 0x5)
/* determine if op needs src or dst */
#define PIX_OP_NEEDS_SRC(op) (((op) >> 2 ^ (op)) & 3)
#define PIX_OP_NEEDS_DST(op) (((op) >> 1 ^ (op)) & 5)
/* misc. data types */
typedef short MPR_T; /* type used for memory pixrect data */
typedef ushort_t UMPR_T; /* unsigned equivalent of MPR_T */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PR_IMPL_UTIL_H */
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