xwords/xwords4/android/jni/jniutlswrapper.c
Eric House 9fa23af6e0 retain thread->env mapping in DEBUG builds only
I'm keeping it AND asserting at every possible location that the env
passed all the way in is the same as what the mapping produces. If in
months I haven't seen a single crash then I can evaluate which way of
passing the env around is better. (It'd be code size vs. performance,
as the passing of env is noticably faster. Code size could be fixed by
turning 'XWEnv xwe,' into a macro that goes away on some builds.)
2020-04-26 13:39:21 -07:00

138 lines
4.2 KiB
C

/* -*-mode: C; compile-command: "cd ..; ../scripts/ndkbuild.sh -j3"; -*- */
/*
* Copyright 2001-2010 by Eric House (xwords@eehouse.org). All rights
* reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "strutils.h"
#include "jniutlswrapper.h"
#include "andutils.h"
struct JNIUtilCtxt {
#ifdef MAP_THREAD_TO_ENV
EnvThreadInfo* ti;
#endif
jobject jjniutil;
MPSLOT;
};
JNIUtilCtxt*
makeJNIUtil( MPFORMAL JNIEnv* env,
#ifdef MAP_THREAD_TO_ENV
EnvThreadInfo* ti,
#endif
jobject jniutls )
{
JNIUtilCtxt* ctxt = (JNIUtilCtxt*)XP_CALLOC( mpool, sizeof( *ctxt ) );
#ifdef MAP_THREAD_TO_ENV
ctxt->ti = ti;
#endif
ctxt->jjniutil = (*env)->NewGlobalRef( env, jniutls );
MPASSIGN( ctxt->mpool, mpool );
return ctxt;
}
void
destroyJNIUtil( JNIEnv* env, JNIUtilCtxt** ctxtp )
{
JNIUtilCtxt* ctxt = *ctxtp;
if ( !!ctxt ) {
(*env)->DeleteGlobalRef( env, ctxt->jjniutil );
XP_FREE( ctxt->mpool, ctxt );
*ctxtp = NULL;
}
}
/* These are called from anddict.c, not via vtable */
#ifndef DROP_BITMAPS
jobject
and_util_makeJBitmap( JNIUtilCtxt* jniutil, int nCols, int nRows,
const jboolean* colors )
{
jobject bitmap;
jmethodID mid
= getMethodID( env, jniutil->jjniutil, "makeBitmap",
"(II[Z)Landroid/graphics/drawable/BitmapDrawable;" );
jbooleanArray jcolors = makeBooleanArray( env, nCols*nRows, colors );
bitmap = (*env)->CallObjectMethod( env, jniutil->jjniutil, mid,
nCols, nRows, jcolors );
deleteLocalRef( env, jcolors );
return bitmap;
}
#endif
jobject
and_util_splitFaces( JNIUtilCtxt* jniutil, JNIEnv* env, const XP_U8* bytes,
jsize len, XP_Bool isUTF8 )
{
jobject strarray = NULL;
jmethodID mid
= getMethodID( env, jniutil->jjniutil, "splitFaces",
"([BZ)[[Ljava/lang/String;" );
jbyteArray jbytes = makeByteArray( env, len, (jbyte*)bytes );
strarray =
(*env)->CallObjectMethod( env, jniutil->jjniutil, mid, jbytes, isUTF8 );
deleteLocalRef( env, jbytes );
return strarray;
}
jstring
and_util_getMD5SumForDict( JNIUtilCtxt* jniutil, JNIEnv* env, const XP_UCHAR* name,
const XP_U8* bytes, jsize len )
{
jmethodID mid = getMethodID( env, jniutil->jjniutil, "getMD5SumFor",
"(Ljava/lang/String;[B)Ljava/lang/String;" );
jstring jname = (*env)->NewStringUTF( env, name );
jbyteArray jbytes = NULL == bytes? NULL
: makeByteArray( env, len, (jbyte*)bytes );
jstring result =
(*env)->CallObjectMethod( env, jniutil->jjniutil, mid, jname, jbytes );
deleteLocalRefs( env, jname, jbytes, DELETE_NO_REF );
#ifdef DEBUG
if ( !!result ) {
const char* chars = (*env)->GetStringUTFChars( env, result, NULL );
XP_LOGF( "%s(%s, len=%d) => %s", __func__, name, len, chars );
(*env)->ReleaseStringUTFChars( env, result, chars );
}
#endif
return result;
}
#ifdef COMMS_CHECKSUM
jstring
and_util_getMD5SumForBytes( JNIUtilCtxt* jniutil, JNIEnv* env,
const XP_U8* bytes, jsize len )
{
jmethodID mid = getMethodID( env, jniutil->jjniutil, "getMD5SumFor",
"([B)Ljava/lang/String;" );
jbyteArray jbytes = NULL == bytes? NULL
: makeByteArray( env, len, (jbyte*)bytes );
jstring result =
(*env)->CallObjectMethod( env, jniutil->jjniutil, mid, jbytes );
deleteLocalRef( env, jbytes );
return result;
}
#endif