mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-13 18:17:39 -04:00
102c374248
original xrick code by 'BigOrno' at: http://www.bigorno.net/xrick/ Rockbox port, plus bugfixes at: https://github.com/pierluigi-vicinanza/xrick Further changes: * Additonal fixes from g#3026 * Port to modern plugin API * Add Pluginlib keymap fallback * Support all >1bpp screens * Fix build warnings in miniz * Better error message when resources are missing Change-Id: Id83928bc2539901b0221692f65cbca41389c58e7
141 lines
4.2 KiB
C
141 lines
4.2 KiB
C
/*
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* xrick/system/basic_funcs.h
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*
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* Copyright (C) 2008-2014 Pierluigi Vicinanza. All rights reserved.
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*
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* The use and distribution terms for this software are contained in the file
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* named README, which can be found in the root of this distribution. By
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* using this software in any fashion, you are agreeing to be bound by the
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* terms of this license.
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*
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* You must not remove this notice, or any other, from this software.
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*/
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#ifndef _BASIC_FUNCS_H
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#define _BASIC_FUNCS_H
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#include "xrick/system/basic_types.h"
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#include "xrick/system/system.h"
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#ifdef __WIN32__
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/* Windows is little endian only */
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# define __ORDER_LITTLE_ENDIAN__ 1234
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# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
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# define USE_DEFAULT_ENDIANNESS_FUNCTIONS
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# include <stdlib.h> /* _byteswap_XXX */
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#elif defined(ROCKBOX)
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/* Rockbox*/
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# include "plugin.h"
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# define __ORDER_LITTLE_ENDIAN__ 1234
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# define __ORDER_BIG_ENDIAN__ 4321
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# ifdef ROCKBOX_BIG_ENDIAN
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# define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
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# else
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# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
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# endif
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#elif (defined(__FreeBSD__) && __FreeBSD_version >= 470000) || defined(__OpenBSD__) || defined(__NetBSD__)
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/* *BSD */
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# include <sys/endian.h>
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# define __ORDER_BIG_ENDIAN__ BIG_ENDIAN
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# define __ORDER_LITTLE_ENDIAN__ LITTLE_ENDIAN
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# define __BYTE_ORDER__ BYTE_ORDER
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#elif (defined(BSD) && (BSD >= 199103)) || defined(__MacOSX__)
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/* more BSD */
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# include <machine/endian.h>
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# define __ORDER_BIG_ENDIAN__ BIG_ENDIAN
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# define __ORDER_LITTLE_ENDIAN__ LITTLE_ENDIAN
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# define __BYTE_ORDER__ BYTE_ORDER
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#elif defined(__linux__) /*|| defined (__BEOS__)*/
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/* Linux, BeOS */
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# include <endian.h>
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# define betoh16(x) be16toh(x)
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# define letoh16(x) le16toh(x)
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# define betoh32(x) be32toh(x)
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# define letoh32(x) le32toh(x)
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#else
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/* shall we just '#include <endian.h>'? */
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# define USE_DEFAULT_ENDIANNESS_FUNCTIONS
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#endif /* __WIN32__ */
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/* define default endianness */
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#ifndef __ORDER_LITTLE_ENDIAN__
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# define __ORDER_LITTLE_ENDIAN__ 1234
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#endif
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#ifndef __ORDER_BIG_ENDIAN__
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# define __ORDER_BIG_ENDIAN__ 4321
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#endif
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#ifndef __BYTE_ORDER__
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# warning "Byte order not defined on your system, assuming little endian!"
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# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
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#endif
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/* provide default endianness functions */
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#ifdef USE_DEFAULT_ENDIANNESS_FUNCTIONS
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# define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
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inline uint32_t swap32(uint32_t x)
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{
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# ifdef _MSC_VER
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return _byteswap_ulong(x);
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# elif (GCC_VERSION > 40300) || defined(__clang__)
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return __builtin_bswap32(x);
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# else
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return (x >> 24) |
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((x >> 8) & 0x0000FF00) |
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((x << 8) & 0x00FF0000) |
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(x << 24);
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# endif /* _MSC_VER */
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}
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inline uint16_t swap16(uint16_t x)
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{
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# ifdef _MSC_VER
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return _byteswap_ushort(x);
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# elif (GCC_VERSION > 40800) || defined(__clang__)
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return __builtin_bswap16(x);
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# else
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return (x << 8)|(x >> 8);
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# endif /* _MSC_VER */
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}
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# if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__)
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inline uint16_t htobe16(uint16_t host) { return swap16(host); }
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inline uint16_t htole16(uint16_t host) { return host; }
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inline uint16_t betoh16(uint16_t big_endian) { return swap16(big_endian); }
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inline uint16_t letoh16(uint16_t little_endian) { return little_endian; }
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inline uint32_t htobe32(uint32_t host) { return swap32(host); }
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inline uint32_t htole32(uint32_t host) { return host; }
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inline uint32_t betoh32(uint32_t big_endian) { return swap32(big_endian); }
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inline uint32_t letoh32(uint32_t little_endian) { return little_endian; }
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# elif (__BYTE_ORDER__==__ORDER_BIG_ENDIAN__)
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inline uint16_t htobe16(uint16_t host) { return host; }
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inline uint16_t htole16(uint16_t host) { return swap16(host); }
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inline uint16_t betoh16(uint16_t big_endian) { return big_endian; }
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inline uint16_t letoh16(uint16_t little_endian) { return swap16(little_endian); }
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inline uint32_t htobe32(uint32_t host) { return host; }
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inline uint32_t htole32(uint32_t host) { return swap32(host); }
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inline uint32_t betoh32(uint32_t big_endian) { return big_endian; }
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inline uint32_t letoh32(uint32_t little_endian) { return swap32(little_endian); }
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# else
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# error "Unknown/unsupported byte order!"
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# endif
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#endif /* USE_DEFAULT_ENDIANNESS_FUNCTIONS */
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#endif /* ndef _BASIC_FUNCS_H */
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/* eof */
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