mirror of https://github.com/FreeRDP/FreeRDP
Using ICU instead of custom unicode conversion.
If WITH_ICU CMake option is set the unicode conversion routines use ICU instead of custom conversion code.
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@ -130,6 +130,7 @@ option(WITH_DEBUG_RINGBUFFER "Enable Ringbuffer debug messages" ${DEFAULT_DEBUG_
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option(WITH_DEBUG_SYMBOLS "Pack debug symbols to installer" OFF)
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option(WITH_CCACHE "Use ccache support if available" ON)
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option(WITH_ICU "Use ICU for unicode conversion" OFF)
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if(ANDROID)
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include(ConfigOptionsAndroid)
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@ -33,6 +33,7 @@
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#cmakedefine WITH_NATIVE_SSPI
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#cmakedefine WITH_JPEG
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#cmakedefine WITH_WIN8
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#cmakedefine WITH_ICU
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#cmakedefine WITH_RDPSND_DSOUND
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#cmakedefine WITH_EVENTFD_READ_WRITE
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#cmakedefine HAVE_MATH_C99_LONG_DOUBLE
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@ -15,15 +15,26 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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winpr_module_add(
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alignment.c
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set (CRT_FILES alignment.c
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conversion.c
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buffer.c
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memory.c
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string.c
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unicode.c
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utf.c
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utf.h)
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string.c)
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if (NOT WITH_ICU)
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set (CRT_FILES ${CRT_FILES}
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utf.c
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utf.h)
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endif(NOT WITH_ICU)
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if (WITH_ICU)
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find_package(ICU REQUIRED i18n uc io)
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include_directories(${ICU_INCLUDE_DIRS})
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winpr_library_add(${ICU_LIBRARIES})
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endif (WITH_ICU)
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winpr_module_add(${CRT_FILES})
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if(BUILD_TESTING)
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add_subdirectory(test)
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@ -30,7 +30,15 @@
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#ifndef _WIN32
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#if defined(WITH_ICU)
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#include <unicode/ucnv.h>
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#include <unicode/ustring.h>
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#else
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#include "utf.h"
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#endif
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#include "../log.h"
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#define TAG WINPR_TAG("unicode")
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/**
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* Notes on cross-platform Unicode portability:
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@ -144,14 +152,16 @@
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int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
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int cbMultiByte, LPWSTR lpWideCharStr, int cchWideChar)
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{
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int length;
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LPWSTR targetStart;
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#if !defined(WITH_ICU)
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const BYTE* sourceStart;
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int length;
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ConversionResult result;
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#endif
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/* If cbMultiByte is 0, the function fails */
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if (cbMultiByte == 0)
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if ((cbMultiByte == 0) || (cbMultiByte < -1))
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return 0;
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/* If cbMultiByte is -1, the string is null-terminated */
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@ -163,11 +173,47 @@ int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
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* if cchWideChar is 0, the function returns the required buffer size
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* in characters for lpWideCharStr and makes no use of the output parameter itself.
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*/
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#if defined(WITH_ICU)
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{
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UErrorCode error;
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int32_t targetLength;
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int32_t targetCapacity;
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switch (CodePage)
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{
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case CP_UTF8:
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break;
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default:
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WLog_ERR(TAG, "Unsupported encoding %u", CodePage);
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return 0;
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}
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if (cbMultiByte > UINT32_MAX)
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return 0;
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targetStart = lpWideCharStr;
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targetCapacity = cchWideChar;
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error = U_ZERO_ERROR;
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if (cchWideChar == 0)
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{
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u_strFromUTF8(NULL, 0, &targetLength,
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lpMultiByteStr, cbMultiByte, &error);
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cchWideChar = targetLength;
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}
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else
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{
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u_strFromUTF8(targetStart, targetCapacity, &targetLength,
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lpMultiByteStr, cbMultiByte, &error);
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cchWideChar = U_SUCCESS(error) ? targetLength : 0;
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}
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}
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#else
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if (cchWideChar == 0)
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{
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sourceStart = (const BYTE*) lpMultiByteStr;
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targetStart = (WCHAR*) NULL;
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result = ConvertUTF8toUTF16(&sourceStart, &sourceStart[cbMultiByte],
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&targetStart, NULL, strictConversion);
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length = targetStart - ((WCHAR*) NULL);
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@ -176,12 +222,14 @@ int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
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{
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sourceStart = (const BYTE*) lpMultiByteStr;
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targetStart = lpWideCharStr;
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result = ConvertUTF8toUTF16(&sourceStart, &sourceStart[cbMultiByte],
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&targetStart, &targetStart[cchWideChar], strictConversion);
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length = targetStart - ((WCHAR*) lpWideCharStr);
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}
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cchWideChar = (result == conversionOK) ? length : 0;
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#endif
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return cchWideChar;
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}
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@ -223,14 +271,16 @@ int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
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int WideCharToMultiByte(UINT CodePage, DWORD dwFlags, LPCWSTR lpWideCharStr, int cchWideChar,
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LPSTR lpMultiByteStr, int cbMultiByte, LPCSTR lpDefaultChar, LPBOOL lpUsedDefaultChar)
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{
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int length;
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BYTE* targetStart;
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#if !defined(WITH_ICU)
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int length;
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const WCHAR* sourceStart;
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ConversionResult result;
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#endif
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/* If cchWideChar is 0, the function fails */
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if (cchWideChar == 0)
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if ((cchWideChar == 0) || (cchWideChar < -1))
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return 0;
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/* If cchWideChar is -1, the string is null-terminated */
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@ -242,25 +292,64 @@ int WideCharToMultiByte(UINT CodePage, DWORD dwFlags, LPCWSTR lpWideCharStr, int
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* if cbMultiByte is 0, the function returns the required buffer size
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* in bytes for lpMultiByteStr and makes no use of the output parameter itself.
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*/
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#if defined(WITH_ICU)
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{
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UErrorCode error;
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int32_t targetLength;
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int32_t targetCapacity;
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switch(CodePage)
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{
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case CP_UTF8:
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break;
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default:
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WLog_ERR(TAG, "Unsupported encoding %u", CodePage);
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return 0;
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}
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if (cchWideChar > UINT32_MAX)
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return 0;
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targetStart = lpMultiByteStr;
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targetCapacity = cbMultiByte;
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error = U_ZERO_ERROR;
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if (cbMultiByte == 0)
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{
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u_strToUTF8(NULL, 0, &targetLength,
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lpWideCharStr, cchWideChar, &error);
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cbMultiByte = targetLength;
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}
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else
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{
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u_strToUTF8(targetStart, targetCapacity, &targetLength,
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lpWideCharStr, cchWideChar, &error);
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cbMultiByte = U_SUCCESS(error) ? targetLength : 0;
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}
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}
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#else
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if (cbMultiByte == 0)
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{
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sourceStart = (WCHAR*) lpWideCharStr;
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targetStart = (BYTE*) NULL;
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result = ConvertUTF16toUTF8(&sourceStart, &sourceStart[cchWideChar],
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&targetStart, NULL, strictConversion);
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length = targetStart - ((BYTE*) NULL);
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}
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else
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{
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sourceStart = (WCHAR*) lpWideCharStr;
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targetStart = (BYTE*) lpMultiByteStr;
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result = ConvertUTF16toUTF8(&sourceStart, &sourceStart[cchWideChar],
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&targetStart, &targetStart[cbMultiByte], strictConversion);
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length = targetStart - ((BYTE*) lpMultiByteStr);
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}
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cbMultiByte = (result == conversionOK) ? length : 0;
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#endif
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return cbMultiByte;
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}
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