Tools/Source/TianoTools/CompressDll/CompressDll.c

   1 #include "CompressDll.h"
   2 #include "EfiCompress.h"
   3
   4 extern
   5 EFI_STATUS
   6 Compress (
   7   IN      UINT8   *SrcBuffer,
   8   IN      UINT32  SrcSize,
   9   IN      UINT8   *DstBuffer,
  10   IN OUT  UINT32  *DstSize
  11   );
  12
  13 JNIEXPORT jbyteArray JNICALL  Java_org_tianocore_framework_tasks_Compress_CallCompress
  14 (JNIEnv *env, jobject obj, jbyteArray SourceBuffer, jint SourceSize, jstring path)
  15 {
  16   char*          DestBuffer;
  17   int            DestSize;
  18   int            Result;
  19   char           *InputBuffer;
  20   jbyteArray     OutputBuffer;
  21   jbyte          *TempByte;
  22
  23   DestSize   = 0;
  24   DestBuffer = NULL;
  25
  26   TempByte = (*env)->GetByteArrayElements(env, SourceBuffer, 0);
  27   InputBuffer = (char*) TempByte;
  28
  29
  30    //
  31    //  First call compress function and get need buffer size
  32    //
  33
  34    Result = Compress (
  35         (char*) InputBuffer,
  36         SourceSize,
  37         DestBuffer,
  38         &DestSize
  39         );
  40
  41    if (Result = EFI_BUFFER_TOO_SMALL) {
  42      DestBuffer = malloc (DestSize);
  43    }
  44
  45    //
  46    //  Second call compress and get the DestBuffer value
  47    //
  48    Result = Compress(
  49               (char*) InputBuffer,
  50         SourceSize,
  51         DestBuffer,
  52         &DestSize
  53      );
  54
  55    //
  56    // new a MV array to store the return compressed buffer
  57    //
  58    OutputBuffer = (*env)->NewByteArray(env, DestSize);
  59    (*env)->SetByteArrayRegion(env, OutputBuffer,0, DestSize, (jbyte*) DestBuffer);
  60
  61    //
  62    // Free Ouputbuffer.
  63    //
  64    free (DestBuffer);
  65
  66
  67   if (Result != 0) {
  68     return NULL;
  69   } else {
  70     return OutputBuffer;
  71   }
  72 }
  73
  74 #ifdef _MSC_VER
  75 BOOLEAN
  76 __stdcall
  77 DllMainCRTStartup(
  78     unsigned int hDllHandle,
  79     unsigned int nReason,
  80     void*   Reserved
  81 )
  82 {
  83   return TRUE;
  84 }
  85 #else
  86 #ifdef __GNUC__
  87 #endif
  88 #endif
  89