Tools/Source/TianoTools/CompressDll/CompressDll.c

   1 /** @file
   2   Compression DLL used by PCD Tools
   3
   4   Copyright (c) 2006, Intel Corporation   All rights reserved.
   5   This program and the accompanying materials are licensed and made available
   6   under the terms and conditions of the BSD License which accompanies this
   7   distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14 #include "CompressDll.h"
  15 #include "EfiCompress.h"
  16
  17 extern
  18 EFI_STATUS
  19 Compress (
  20   IN      UINT8   *SrcBuffer,
  21   IN      UINT32  SrcSize,
  22   IN      UINT8   *DstBuffer,
  23   IN OUT  UINT32  *DstSize
  24   );
  25
  26 JNIEXPORT jbyteArray JNICALL  Java_org_tianocore_framework_tasks_Compress_CallCompress
  27 (JNIEnv *env, jobject obj, jbyteArray SourceBuffer, jint SourceSize, jstring path)
  28 {
  29   char*          DestBuffer;
  30   int            DestSize;
  31   int            Result;
  32   char           *InputBuffer;
  33   jbyteArray     OutputBuffer;
  34   jbyte          *TempByte;
  35
  36   DestSize   = 0;
  37   DestBuffer = NULL;
  38
  39   TempByte = (*env)->GetByteArrayElements(env, SourceBuffer, 0);
  40   InputBuffer = (char*) TempByte;
  41
  42
  43    //
  44    //  First call compress function and get need buffer size
  45    //
  46
  47    Result = Compress (
  48         (char*) InputBuffer,
  49         SourceSize,
  50         DestBuffer,
  51         &DestSize
  52         );
  53
  54    if (Result = EFI_BUFFER_TOO_SMALL) {
  55      DestBuffer = malloc (DestSize);
  56    }
  57
  58    //
  59    //  Second call compress and get the DestBuffer value
  60    //
  61    Result = Compress(
  62               (char*) InputBuffer,
  63         SourceSize,
  64         DestBuffer,
  65         &DestSize
  66      );
  67
  68    //
  69    // new a MV array to store the return compressed buffer
  70    //
  71    OutputBuffer = (*env)->NewByteArray(env, DestSize);
  72    (*env)->SetByteArrayRegion(env, OutputBuffer,0, DestSize, (jbyte*) DestBuffer);
  73
  74    //
  75    // Free Ouputbuffer.
  76    //
  77    free (DestBuffer);
  78
  79
  80   if (Result != 0) {
  81     return NULL;
  82   } else {
  83     return OutputBuffer;
  84   }
  85 }
  86
  87 #ifdef _MSC_VER
  88 BOOLEAN
  89 __stdcall
  90 DllMainCRTStartup(
  91     unsigned int hDllHandle,
  92     unsigned int nReason,
  93     void*   Reserved
  94 )
  95 {
  96   return TRUE;
  97 }
  98 #else
  99 #ifdef __GNUC__
 100 #endif
 101 #endif
 102