uncompressed-api: allow uncompressed_update only for independent blocks

Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>

1 files changed, 6 insertions, 21 deletions

diff --git a/lib/lz4hc.c b/lib/lz4hc.c
index b5bc880..99650a6 100644
--- a/lib/lz4hc.c
+++ b/lib/lz4hc.c
@@ -1154,26 +1154,6 @@ int LZ4_compress_HC_continue_destSize (LZ4_streamHC_t* LZ4_streamHCPtr, const ch
     return LZ4_compressHC_continue_generic(LZ4_streamHCPtr, src, dst, srcSizePtr, targetDestSize, fillOutput);
 }
 
-/*! LZ4_getDictHCSize():
- * Get the size of the dictionary. This can be used for adding data without
- * compression to the LZ4 archive. If linked blocked mode is used the memory
- * of the dictionary is kept free.
- * This way uncompressed data does not influence the effectiveness of the
- * dictionary.
- * @param LZ4_dict Pointer to the dictionary to get the size of.
- * @param dictSize The maximum dictionary size. (Normally 64 KB).
- * @return The size of the dictionary.
- */
-int LZ4_getDictHCSize(const LZ4_streamHC_t* LZ4_streamHCPtr, int dictSize) {
-  const LZ4HC_CCtx_internal* const streamPtr = &LZ4_streamHCPtr->internal_donotuse;
-  int const prefixSize = (int)(streamPtr->end - (streamPtr->base + streamPtr->dictLimit));
-  DEBUGLOG(5, "LZ4_saveDictHC(%p, %p, %d)", LZ4_streamHCPtr, safeBuffer, dictSize);
-  assert(prefixSize >= 0);
-  if (dictSize > 64 KB) dictSize = 64 KB;
-  if (dictSize < 4) dictSize = 0;
-  if (dictSize > prefixSize) dictSize = prefixSize;
-  return dictSize;
-}
 
 
 /* LZ4_saveDictHC :
@@ -1184,7 +1164,12 @@ int LZ4_getDictHCSize(const LZ4_streamHC_t* LZ4_streamHCPtr, int dictSize) {
 int LZ4_saveDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, char* safeBuffer, int dictSize)
 {
     LZ4HC_CCtx_internal* const streamPtr = &LZ4_streamHCPtr->internal_donotuse;
-    dictSize = LZ4_getDictHCSize(LZ4_streamHCPtr, dictSize);
+    int const prefixSize = (int)(streamPtr->end - (streamPtr->base + streamPtr->dictLimit));
+    DEBUGLOG(5, "LZ4_saveDictHC(%p, %p, %d)", LZ4_streamHCPtr, safeBuffer, dictSize);
+    assert(prefixSize >= 0);
+    if (dictSize > 64 KB) dictSize = 64 KB;
+    if (dictSize < 4) dictSize = 0;
+    if (dictSize > prefixSize) dictSize = prefixSize;
     if (safeBuffer == NULL) assert(dictSize == 0);
     if (dictSize > 0)
         memmove(safeBuffer, streamPtr->end - dictSize, dictSize);