add am_iconv.h

1 files changed, 109 insertions, 0 deletions

diff --git a/src/am_iconv.h b/src/am_iconv.h
new file mode 100755
index 0000000..b53dab1
--- a/dev/null
+++ b/src/am_iconv.h
@@ -0,0 +1,109 @@
+/***************************************************************************
+ *  Copyright C 2009 by Amlogic, Inc. All Rights Reserved.
+ */
+/**\file
+ * \brief iconv
+ *
+ * \author Gong Ke <ke.gong@amlogic.com>
+ * \date 2012-08-10: create the document
+ ***************************************************************************/
+
+#ifndef _AM_ICONV_H
+#define _AM_ICONV_H
+
+//#include "am_types.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#ifdef ANDROID
+#include <unicode/ucnv.h>
+#include <android/log.h>
+
+typedef struct {
+	UConverter *target;
+	UConverter *source;
+} AM_IConv_t;
+
+typedef AM_IConv_t* iconv_t;
+
+static inline iconv_t
+iconv_open(const char *tocode, const char *fromcode)
+{
+	iconv_t cd = NULL;
+	UErrorCode err1 = U_ZERO_ERROR, err2 = U_ZERO_ERROR;
+
+	cd = (iconv_t)malloc(sizeof(AM_IConv_t));
+	if(!cd)
+		goto error;
+	
+	cd->target = ucnv_open(tocode, &err1);
+	cd->source = ucnv_open(fromcode, &err2);
+	if((!U_SUCCESS(err1)) || (!U_SUCCESS(err2)))
+		goto error;
+	
+	return cd;
+error:
+	if(cd)
+	{
+		if(U_SUCCESS(err1))
+			ucnv_close(cd->target);
+		if(U_SUCCESS(err2))
+			ucnv_close(cd->source);
+		free(cd);
+	}
+	return (iconv_t)-1;
+}
+
+static inline int
+iconv_close(iconv_t cd)
+{
+	if(!cd)
+		return 0;
+	
+	ucnv_close(cd->target);
+	ucnv_close(cd->source);
+	free(cd);
+
+	return 0;
+}
+
+static inline size_t
+iconv(iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
+{
+	UErrorCode err = U_ZERO_ERROR;
+	const char *sbegin, *send;
+	char *tbegin, *tend;
+
+	if(!cd)
+		return -1;
+
+	sbegin = *inbuf;
+	send   = sbegin + *inbytesleft;
+	tbegin = *outbuf;
+	tend   = tbegin + *outbytesleft;
+
+	ucnv_convertEx(cd->target, cd->source, &tbegin, tend, &sbegin, send,
+			NULL, NULL, NULL, NULL, FALSE, TRUE, &err);
+	if(!U_SUCCESS(err))
+		return -1;
+	
+	*inbuf  = (char*)sbegin;
+	*inbytesleft  = send - sbegin;
+	*outbuf = tbegin;
+	*outbytesleft = tend - tbegin;
+	return 0;
+}
+
+#else /*!defined(ANDROID)*/
+#include <iconv.h>
+#endif /*ANDROID*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+