Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.fastlz / native / jniWrapper.c

diff --git a/bundles/org.simantics.fastlz/native/jniWrapper.c b/bundles/org.simantics.fastlz/native/jniWrapper.c
new file mode 100644 (file)
index 0000000..0c696e1
--- /dev/null
+++ b/bundles/org.simantics.fastlz/native/jniWrapper.c
@@ -0,0 +1,157 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+#include "fastlz.h"\r
+#include "lz4.h"\r
+#include <stdio.h>\r
+#include "jni.h"\r
+#include <string.h>\r
+#include <stdlib.h>\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_FastLZ_compress(JNIEnv* env, jclass clazz, \r
+                                                                 jobject input, jint inputOffset, jint length, \r
+                                                                 jobject output, jint outputOffset) {\r
+    void* inputAddress = (char*)(*env)->GetDirectBufferAddress(env, input) + inputOffset;\r
+    void* outputAddress = (char*)(*env)->GetDirectBufferAddress(env, output) + outputOffset;\r
+    return fastlz_compress(inputAddress, length, outputAddress);\r
+}\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_FastLZ_decompress(JNIEnv* env, jclass clazz, \r
+                                                                   jobject input, jint inputOffset, jint length, \r
+                                                                   jobject output, jint outputOffset, jint maxout) {\r
+    void* inputAddress = (char*)(*env)->GetDirectBufferAddress(env, input) + inputOffset;\r
+    void* outputAddress = (char*)(*env)->GetDirectBufferAddress(env, output) + outputOffset;\r
+    return fastlz_decompress(inputAddress, length, outputAddress, maxout);\r
+}\r
+\r
+#define INITIAL_SIZE 2000000\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_FastLZ_decompressCluster(JNIEnv* env, jclass clazz, jobject deflated, jint deflatedSize, jint inflatedSize, jobjectArray arrays) {\r
+\r
+       static char *inflateBuffer = 0;\r
+       static int inflateBufferSize = 0;\r
+\r
+       int ll, il, bl;\r
+\r
+       jlongArray longs;\r
+       jintArray ints;\r
+       jbyteArray bytes;\r
+\r
+       char *input = (char*)(*env)->GetDirectBufferAddress(env, deflated);\r
+       char *address;\r
+\r
+       if(inflateBufferSize < inflatedSize) {\r
+               if(!inflateBuffer) {\r
+                       if(inflatedSize < INITIAL_SIZE) inflatedSize = INITIAL_SIZE;\r
+                       inflateBuffer = malloc(inflatedSize);\r
+                       inflateBufferSize = inflatedSize;\r
+               } else {\r
+                       if(inflateBuffer) free(inflateBuffer);\r
+                       inflateBuffer = malloc(inflatedSize);\r
+                       inflateBufferSize = inflatedSize;\r
+               }\r
+       }\r
+\r
+       address = inflateBuffer;\r
+\r
+       fastlz_decompress(input, deflatedSize, inflateBuffer, inflateBufferSize);\r
+\r
+       ll = *(int *)address;\r
+       longs = (*env)->NewLongArray(env, ll);\r
+       (*env)->SetLongArrayRegion(env, longs, 0, ll, (const jlong *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 0, longs);\r
+\r
+       address += 4 + 8 * ll;\r
+\r
+       il = *(int *)address;\r
+       ints = (*env)->NewIntArray(env, il);\r
+       (*env)->SetIntArrayRegion(env, ints, 0, il, (const jint *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 1, ints);\r
+\r
+       address += 4 * il + 4;\r
+\r
+       bl = *(int *)address;\r
+       bytes = (*env)->NewByteArray(env, bl);\r
+       (*env)->SetByteArrayRegion(env, bytes, 0, bl, (const jbyte *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 2, bytes);\r
+\r
+       return 0;\r
+\r
+}\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_LZ4_compress(JNIEnv* env, jclass clazz, \r
+                                                              jobject input, jint inputOffset, jint length, \r
+                                                              jobject output, jint outputOffset) {\r
+    void* inputAddress = (char*)(*env)->GetDirectBufferAddress(env, input) + inputOffset;\r
+    void* outputAddress = (char*)(*env)->GetDirectBufferAddress(env, output) + outputOffset;\r
+    return LZ4_compress(inputAddress, outputAddress, length);\r
+}\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_LZ4_decompress(JNIEnv* env, jclass clazz, \r
+                                                                jobject input, jint inputOffset, jint length, \r
+                                                                jobject output, jint outputOffset, jint maxout) {\r
+    void* inputAddress = (char*)(*env)->GetDirectBufferAddress(env, input) + inputOffset;\r
+    void* outputAddress = (char*)(*env)->GetDirectBufferAddress(env, output) + outputOffset;\r
+       return LZ4_uncompress_unknownOutputSize(inputAddress, outputAddress, length, maxout);\r
+}\r
+\r
+JNIEXPORT jint JNICALL Java_org_simantics_fastlz_LZ4_decompressCluster(JNIEnv* env, jclass clazz, jobject deflated, jint deflatedSize, jint inflatedSize, jobjectArray arrays) {\r
+\r
+       static char *inflateBuffer = 0;\r
+       static int inflateBufferSize = 0;\r
+\r
+       int ll, il, bl;\r
+\r
+       jlongArray longs;\r
+       jintArray ints;\r
+       jbyteArray bytes;\r
+\r
+       char *input = (char*)(*env)->GetDirectBufferAddress(env, deflated);\r
+       char *address;\r
+\r
+       if(inflateBufferSize < inflatedSize) {\r
+               if(!inflateBuffer) {\r
+                       if(inflatedSize < INITIAL_SIZE) inflatedSize = INITIAL_SIZE;\r
+                       inflateBuffer = malloc(inflatedSize);\r
+                       inflateBufferSize = inflatedSize;\r
+               } else {\r
+                       if(inflateBuffer) free(inflateBuffer);\r
+                       inflateBuffer = malloc(inflatedSize);\r
+                       inflateBufferSize = inflatedSize;\r
+               }\r
+       }\r
+\r
+       address = inflateBuffer;\r
+\r
+       LZ4_uncompress_unknownOutputSize(input, inflateBuffer, deflatedSize, inflateBufferSize);\r
+\r
+       ll = *(int *)address;\r
+       longs = (*env)->NewLongArray(env, ll);\r
+       (*env)->SetLongArrayRegion(env, longs, 0, ll, (const jlong *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 0, longs);\r
+\r
+       address += 4 + 8 * ll;\r
+\r
+       il = *(int *)address;\r
+       ints = (*env)->NewIntArray(env, il);\r
+       (*env)->SetIntArrayRegion(env, ints, 0, il, (const jint *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 1, ints);\r
+\r
+       address += 4 * il + 4;\r
+\r
+       bl = *(int *)address;\r
+       bytes = (*env)->NewByteArray(env, bl);\r
+       (*env)->SetByteArrayRegion(env, bytes, 0, bl, (const jbyte *)(address + 4));\r
+       (*env)->SetObjectArrayElement(env, arrays, 2, bytes);\r
+\r
+       return 0;\r
+\r
+}\r