Source/CompressDll/CompressDll.c

/** @file
  Compression DLL used by PCD Tools

  Copyright (c) 2006, Intel Corporation   All rights reserved.
  This program and the accompanying materials are licensed and made available 
  under the terms and conditions of the BSD License which accompanies this 
  distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php 

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/
#if defined(__GNUC__)
typedef long long __int64;/*For cygwin build*/
#endif
#include "CompressDll.h"
#include "EfiCompress.h"

extern
EFI_STATUS
Compress (
  IN      UINT8   *SrcBuffer,
  IN      UINT32  SrcSize,
  IN      UINT8   *DstBuffer,
  IN OUT  UINT32  *DstSize
  );
  
JNIEXPORT jbyteArray JNICALL  Java_org_tianocore_framework_tasks_Compress_CallCompress 
(JNIEnv *env, jobject obj, jbyteArray SourceBuffer, jint SourceSize, jstring path)
{
  char*          DestBuffer;
  int            DestSize;   
  int            Result;
  char           *InputBuffer;
  jbyteArray     OutputBuffer;
  jbyte          *TempByte;
  
  DestSize   = 0;
  DestBuffer = NULL;
  
  TempByte = (*env)->GetByteArrayElements(env, SourceBuffer, 0);
  InputBuffer = (char*) TempByte;

  
   //
   //  First call compress function and get need buffer size
   //

   Result = Compress (
        (char*) InputBuffer, 
        SourceSize,  
        DestBuffer,
        &DestSize
        );

   if (Result = EFI_BUFFER_TOO_SMALL) {
     DestBuffer = malloc (DestSize);
   }

   //
   //  Second call compress and get the DestBuffer value
   //
   Result = Compress(
              (char*) InputBuffer, 
        SourceSize,  
        DestBuffer,
        &DestSize  
     );

   //
   // new a MV array to store the return compressed buffer
   //
   OutputBuffer = (*env)->NewByteArray(env, DestSize);
   (*env)->SetByteArrayRegion(env, OutputBuffer,0, DestSize, (jbyte*) DestBuffer);

   //
   // Free Ouputbuffer.
   //
   free (DestBuffer);
  

  if (Result != 0) {
    return NULL;
  } else {
    return OutputBuffer;
  }
}

#ifdef _MSC_VER
BOOLEAN 
__stdcall 
DllMainCRTStartup(
    unsigned int hDllHandle, 
    unsigned int nReason,    
    void*   Reserved    
)
{
  return TRUE;
}
#else
#ifdef __GNUC__
#endif
#endif