Merge pull request #943 from lz4/fullbench_dec

Added decompression tests in fullbench

1 files changed, 44 insertions, 3 deletions

diff --git a/tests/fullbench.c b/tests/fullbench.c
index 77f475b..4ec30ce 100644
--- a/tests/fullbench.c
+++ b/tests/fullbench.c
@@ -24,8 +24,8 @@
 */
 
 
-// S_ISREG & gettimeofday() are not supported by MSVC
 #if defined(_MSC_VER) || defined(_WIN32)
+   /* S_ISREG & gettimeofday() are not supported by MSVC */
 #  define BMK_LEGACY_TIMER 1
 #endif
 
@@ -134,7 +134,7 @@ static clock_t BMK_GetClockSpan( clock_t clockStart )
 static size_t BMK_findMaxMem(U64 requiredMem)
 {
     size_t step = 64 MB;
-    BYTE* testmem=NULL;
+    BYTE* testmem = NULL;
 
     requiredMem = (((requiredMem >> 26) + 1) << 26);
     requiredMem += 2*step;
@@ -292,9 +292,14 @@ static int local_LZ4_decompress_fast_usingExtDict(const char* in, char* out, int
     return outSize;
 }
 
+static int local_LZ4_decompress_safe_withPrefix64k(const char* in, char* out, int inSize, int outSize)
+{
+    LZ4_decompress_safe_withPrefix64k(in, out, inSize, outSize);
+    return outSize;
+}
+
 static int local_LZ4_decompress_safe_usingDict(const char* in, char* out, int inSize, int outSize)
 {
-    (void)inSize;
     LZ4_decompress_safe_usingDict(in, out, inSize, outSize, out - 65536, 65536);
     return outSize;
 }
@@ -381,6 +386,39 @@ static int local_LZ4F_decompress_followHint(const char* src, char* dst, int srcS
 
 }
 
+/* always provide input by block of 64 KB */
+static int local_LZ4F_decompress_noHint(const char* src, char* dst, int srcSize, int dstSize)
+{
+    size_t totalInSize = (size_t)srcSize;
+    size_t maxOutSize = (size_t)dstSize;
+
+    size_t inPos = 0;
+    size_t inSize = 64 KB;
+    size_t outPos = 0;
+    size_t outRemaining = maxOutSize - outPos;
+
+    for (;;) {
+        size_t const sizeHint = LZ4F_decompress(g_dCtx, dst+outPos, &outRemaining, src+inPos, &inSize, NULL);
+        assert(!LZ4F_isError(sizeHint));
+
+        inPos += inSize;
+        inSize = (inPos + 64 KB <= totalInSize) ? 64 KB : totalInSize - inPos;
+
+        outPos += outRemaining;
+        outRemaining = maxOutSize - outPos;
+
+        if (!sizeHint) break;
+    }
+
+    /* frame completed */
+    if (inPos != totalInSize) {
+        DISPLAY("Error decompressing frame : must read (%u) full frame (%u) \n",
+                (unsigned)inPos, (unsigned)totalInSize);
+        exit(10);
+    }
+    return (int)outPos;
+
+}
 
 #define NB_COMPRESSION_ALGORITHMS 100
 #define NB_DECOMPRESSION_ALGORITHMS 100
@@ -608,6 +646,7 @@ int fullSpeedBench(const char** fileNamesTable, int nbFiles)
             case 2: decompressionFunction = local_LZ4_decompress_fast_usingDict_prefix; dName = "LZ4_decompress_fast_usingDict(prefix)"; break;
             case 3: decompressionFunction = local_LZ4_decompress_fast_usingExtDict; dName = "LZ4_decompress_fast_using(Ext)Dict"; break;
             case 4: decompressionFunction = LZ4_decompress_safe; dName = "LZ4_decompress_safe"; break;
+            case 5: decompressionFunction = local_LZ4_decompress_safe_withPrefix64k; dName = "LZ4_decompress_safe_withPrefix64k"; break;
             case 6: decompressionFunction = local_LZ4_decompress_safe_usingDict; dName = "LZ4_decompress_safe_usingDict"; break;
             case 7: decompressionFunction = local_LZ4_decompress_safe_partial; dName = "LZ4_decompress_safe_partial"; checkResult = 0; break;
 #ifndef LZ4_DLL_IMPORT
@@ -615,8 +654,10 @@ int fullSpeedBench(const char** fileNamesTable, int nbFiles)
 #endif
             case 10:
             case 11:
+            case 12:
                 if (dAlgNb == 10) { decompressionFunction = local_LZ4F_decompress; dName = "LZ4F_decompress"; }  /* can be skipped */
                 if (dAlgNb == 11) { decompressionFunction = local_LZ4F_decompress_followHint; dName = "LZ4F_decompress_followHint"; }  /* can be skipped */
+                if (dAlgNb == 12) { decompressionFunction = local_LZ4F_decompress_noHint; dName = "LZ4F_decompress_noHint"; }  /* can be skipped */
                 /* prepare compressed data using frame format */
                 {   size_t const fcsize = LZ4F_compressFrame(compressed_buff, (size_t)compressedBuffSize, orig_buff, benchedSize, NULL);
                     assert(!LZ4F_isError(fcsize));