From b9f441e81e89728f284f61991e14748208817efd Mon Sep 17 00:00:00 2001 From: bruvzg <7645683+bruvzg@users.noreply.github.com> Date: Tue, 11 Aug 2020 12:10:23 +0300 Subject: [Complex Text Layouts] Add third-party TextServer dependencies (ICU, HarfBuzz, Graphite). --- thirdparty/icu4c/common/udataswp.cpp | 473 +++++++++++++++++++++++++++++++++++ 1 file changed, 473 insertions(+) create mode 100644 thirdparty/icu4c/common/udataswp.cpp (limited to 'thirdparty/icu4c/common/udataswp.cpp') diff --git a/thirdparty/icu4c/common/udataswp.cpp b/thirdparty/icu4c/common/udataswp.cpp new file mode 100644 index 0000000000..86f302bd9c --- /dev/null +++ b/thirdparty/icu4c/common/udataswp.cpp @@ -0,0 +1,473 @@ +// © 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +******************************************************************************* +* +* Copyright (C) 2003-2014, International Business Machines +* Corporation and others. All Rights Reserved. +* +******************************************************************************* +* file name: udataswp.c +* encoding: UTF-8 +* tab size: 8 (not used) +* indentation:4 +* +* created on: 2003jun05 +* created by: Markus W. Scherer +* +* Definitions for ICU data transformations for different platforms, +* changing between big- and little-endian data and/or between +* charset families (ASCII<->EBCDIC). +*/ + +#include +#include "unicode/utypes.h" +#include "unicode/udata.h" /* UDataInfo */ +#include "ucmndata.h" /* DataHeader */ +#include "cmemory.h" +#include "udataswp.h" + +/* swapping primitives ------------------------------------------------------ */ + +static int32_t U_CALLCONV +uprv_swapArray16(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + const uint16_t *p; + uint16_t *q; + int32_t count; + uint16_t x; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&1)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + /* setup and swapping */ + p=(const uint16_t *)inData; + q=(uint16_t *)outData; + count=length/2; + while(count>0) { + x=*p++; + *q++=(uint16_t)((x<<8)|(x>>8)); + --count; + } + + return length; +} + +static int32_t U_CALLCONV +uprv_copyArray16(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&1)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + if(length>0 && inData!=outData) { + uprv_memcpy(outData, inData, length); + } + return length; +} + +static int32_t U_CALLCONV +uprv_swapArray32(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + const uint32_t *p; + uint32_t *q; + int32_t count; + uint32_t x; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&3)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + /* setup and swapping */ + p=(const uint32_t *)inData; + q=(uint32_t *)outData; + count=length/4; + while(count>0) { + x=*p++; + *q++=(uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24)); + --count; + } + + return length; +} + +static int32_t U_CALLCONV +uprv_copyArray32(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&3)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + if(length>0 && inData!=outData) { + uprv_memcpy(outData, inData, length); + } + return length; +} + +static int32_t U_CALLCONV +uprv_swapArray64(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + const uint64_t *p; + uint64_t *q; + int32_t count; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&7)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + /* setup and swapping */ + p=(const uint64_t *)inData; + q=(uint64_t *)outData; + count=length/8; + while(count>0) { + uint64_t x=*p++; + x=(x<<56)|((x&0xff00)<<40)|((x&0xff0000)<<24)|((x&0xff000000)<<8)| + ((x>>8)&0xff000000)|((x>>24)&0xff0000)|((x>>40)&0xff00)|(x>>56); + *q++=x; + --count; + } + + return length; +} + +static int32_t U_CALLCONV +uprv_copyArray64(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length&7)!=0 || outData==NULL) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + if(length>0 && inData!=outData) { + uprv_memcpy(outData, inData, length); + } + return length; +} + +static uint16_t U_CALLCONV +uprv_readSwapUInt16(uint16_t x) { + return (uint16_t)((x<<8)|(x>>8)); +} + +static uint16_t U_CALLCONV +uprv_readDirectUInt16(uint16_t x) { + return x; +} + +static uint32_t U_CALLCONV +uprv_readSwapUInt32(uint32_t x) { + return (uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24)); +} + +static uint32_t U_CALLCONV +uprv_readDirectUInt32(uint32_t x) { + return x; +} + +static void U_CALLCONV +uprv_writeSwapUInt16(uint16_t *p, uint16_t x) { + *p=(uint16_t)((x<<8)|(x>>8)); +} + +static void U_CALLCONV +uprv_writeDirectUInt16(uint16_t *p, uint16_t x) { + *p=x; +} + +static void U_CALLCONV +uprv_writeSwapUInt32(uint32_t *p, uint32_t x) { + *p=(uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24)); +} + +static void U_CALLCONV +uprv_writeDirectUInt32(uint32_t *p, uint32_t x) { + *p=x; +} + +U_CAPI int16_t U_EXPORT2 +udata_readInt16(const UDataSwapper *ds, int16_t x) { + return (int16_t)ds->readUInt16((uint16_t)x); +} + +U_CAPI int32_t U_EXPORT2 +udata_readInt32(const UDataSwapper *ds, int32_t x) { + return (int32_t)ds->readUInt32((uint32_t)x); +} + +/** + * Swap a block of invariant, NUL-terminated strings, but not padding + * bytes after the last string. + * @internal + */ +U_CAPI int32_t U_EXPORT2 +udata_swapInvStringBlock(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + const char *inChars; + int32_t stringsLength; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<0 || (length>0 && outData==NULL)) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + /* reduce the strings length to not include bytes after the last NUL */ + inChars=(const char *)inData; + stringsLength=length; + while(stringsLength>0 && inChars[stringsLength-1]!=0) { + --stringsLength; + } + + /* swap up to the last NUL */ + ds->swapInvChars(ds, inData, stringsLength, outData, pErrorCode); + + /* copy the bytes after the last NUL */ + if(inData!=outData && length>stringsLength) { + uprv_memcpy((char *)outData+stringsLength, inChars+stringsLength, length-stringsLength); + } + + /* return the length including padding bytes */ + if(U_SUCCESS(*pErrorCode)) { + return length; + } else { + return 0; + } +} + +U_CAPI void U_EXPORT2 +udata_printError(const UDataSwapper *ds, + const char *fmt, + ...) { + va_list args; + + if(ds->printError!=NULL) { + va_start(args, fmt); + ds->printError(ds->printErrorContext, fmt, args); + va_end(args); + } +} + +/* swap a data header ------------------------------------------------------- */ + +U_CAPI int32_t U_EXPORT2 +udata_swapDataHeader(const UDataSwapper *ds, + const void *inData, int32_t length, void *outData, + UErrorCode *pErrorCode) { + const DataHeader *pHeader; + uint16_t headerSize, infoSize; + + /* argument checking */ + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return 0; + } + if(ds==NULL || inData==NULL || length<-1 || (length>0 && outData==NULL)) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + + /* check minimum length and magic bytes */ + pHeader=(const DataHeader *)inData; + if( (length>=0 && length<(int32_t)sizeof(DataHeader)) || + pHeader->dataHeader.magic1!=0xda || + pHeader->dataHeader.magic2!=0x27 || + pHeader->info.sizeofUChar!=2 + ) { + udata_printError(ds, "udata_swapDataHeader(): initial bytes do not look like ICU data\n"); + *pErrorCode=U_UNSUPPORTED_ERROR; + return 0; + } + + headerSize=ds->readUInt16(pHeader->dataHeader.headerSize); + infoSize=ds->readUInt16(pHeader->info.size); + + if( headerSizedataHeader)+infoSize) || + (length>=0 && length0) { + DataHeader *outHeader; + const char *s; + int32_t maxLength; + + /* Most of the fields are just bytes and need no swapping. */ + if(inData!=outData) { + uprv_memcpy(outData, inData, headerSize); + } + outHeader=(DataHeader *)outData; + + outHeader->info.isBigEndian = ds->outIsBigEndian; + outHeader->info.charsetFamily = ds->outCharset; + + /* swap headerSize */ + ds->swapArray16(ds, &pHeader->dataHeader.headerSize, 2, &outHeader->dataHeader.headerSize, pErrorCode); + + /* swap UDataInfo size and reservedWord */ + ds->swapArray16(ds, &pHeader->info.size, 4, &outHeader->info.size, pErrorCode); + + /* swap copyright statement after the UDataInfo */ + infoSize+=sizeof(pHeader->dataHeader); + s=(const char *)inData+infoSize; + maxLength=headerSize-infoSize; + /* get the length of the string */ + for(length=0; lengthswapInvChars(ds, s, length, (char *)outData+infoSize, pErrorCode); + } + + return headerSize; +} + +/* API functions ------------------------------------------------------------ */ + +U_CAPI UDataSwapper * U_EXPORT2 +udata_openSwapper(UBool inIsBigEndian, uint8_t inCharset, + UBool outIsBigEndian, uint8_t outCharset, + UErrorCode *pErrorCode) { + UDataSwapper *swapper; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return NULL; + } + if(inCharset>U_EBCDIC_FAMILY || outCharset>U_EBCDIC_FAMILY) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return NULL; + } + + /* allocate the swapper */ + swapper=(UDataSwapper *)uprv_malloc(sizeof(UDataSwapper)); + if(swapper==NULL) { + *pErrorCode=U_MEMORY_ALLOCATION_ERROR; + return NULL; + } + uprv_memset(swapper, 0, sizeof(UDataSwapper)); + + /* set values and functions pointers according to in/out parameters */ + swapper->inIsBigEndian=inIsBigEndian; + swapper->inCharset=inCharset; + swapper->outIsBigEndian=outIsBigEndian; + swapper->outCharset=outCharset; + + swapper->readUInt16= inIsBigEndian==U_IS_BIG_ENDIAN ? uprv_readDirectUInt16 : uprv_readSwapUInt16; + swapper->readUInt32= inIsBigEndian==U_IS_BIG_ENDIAN ? uprv_readDirectUInt32 : uprv_readSwapUInt32; + + swapper->writeUInt16= outIsBigEndian==U_IS_BIG_ENDIAN ? uprv_writeDirectUInt16 : uprv_writeSwapUInt16; + swapper->writeUInt32= outIsBigEndian==U_IS_BIG_ENDIAN ? uprv_writeDirectUInt32 : uprv_writeSwapUInt32; + + swapper->compareInvChars= outCharset==U_ASCII_FAMILY ? uprv_compareInvAscii : uprv_compareInvEbcdic; + + if(inIsBigEndian==outIsBigEndian) { + swapper->swapArray16=uprv_copyArray16; + swapper->swapArray32=uprv_copyArray32; + swapper->swapArray64=uprv_copyArray64; + } else { + swapper->swapArray16=uprv_swapArray16; + swapper->swapArray32=uprv_swapArray32; + swapper->swapArray64=uprv_swapArray64; + } + + if(inCharset==U_ASCII_FAMILY) { + swapper->swapInvChars= outCharset==U_ASCII_FAMILY ? uprv_copyAscii : uprv_ebcdicFromAscii; + } else /* U_EBCDIC_FAMILY */ { + swapper->swapInvChars= outCharset==U_EBCDIC_FAMILY ? uprv_copyEbcdic : uprv_asciiFromEbcdic; + } + + return swapper; +} + +U_CAPI UDataSwapper * U_EXPORT2 +udata_openSwapperForInputData(const void *data, int32_t length, + UBool outIsBigEndian, uint8_t outCharset, + UErrorCode *pErrorCode) { + const DataHeader *pHeader; + uint16_t headerSize, infoSize; + UBool inIsBigEndian; + int8_t inCharset; + + if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { + return NULL; + } + if( data==NULL || + (length>=0 && length<(int32_t)sizeof(DataHeader)) || + outCharset>U_EBCDIC_FAMILY + ) { + *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; + return NULL; + } + + pHeader=(const DataHeader *)data; + if( (length>=0 && length<(int32_t)sizeof(DataHeader)) || + pHeader->dataHeader.magic1!=0xda || + pHeader->dataHeader.magic2!=0x27 || + pHeader->info.sizeofUChar!=2 + ) { + *pErrorCode=U_UNSUPPORTED_ERROR; + return 0; + } + + inIsBigEndian=(UBool)pHeader->info.isBigEndian; + inCharset=pHeader->info.charsetFamily; + + if(inIsBigEndian==U_IS_BIG_ENDIAN) { + headerSize=pHeader->dataHeader.headerSize; + infoSize=pHeader->info.size; + } else { + headerSize=uprv_readSwapUInt16(pHeader->dataHeader.headerSize); + infoSize=uprv_readSwapUInt16(pHeader->info.size); + } + + if( headerSizedataHeader)+infoSize) || + (length>=0 && length