Adding upstream version 1.12.upstream/1.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/LzmaDec.h b/LzmaDec.h
new file mode 100644
index 0000000..59f7400
--- /dev/null
+++ b/LzmaDec.h
@@ -0,0 +1,90 @@
+/* LzmaDec.h -- LZMA Decoder
+2009-02-07 : Igor Pavlov : Public domain */
+
+/* ---------- LZMA Properties ---------- */
+
+#define LZMA_PROPS_SIZE 5
+
+
+/* ---------- LZMA Decoder state ---------- */
+
+/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case.
+   Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */
+
+#define LZMA_REQUIRED_INPUT_MAX 20
+
+typedef struct
+{
+  int *probs;
+  uint8_t *dic;
+  const uint8_t *buf;
+  uint32_t range, code;
+  uint32_t dicPos;
+  uint32_t dicBufSize;
+  uint32_t processedPos;
+  uint32_t checkDicSize;
+  unsigned lc, lp, pb;
+  State state;
+  uint32_t reps[4];
+  unsigned remainLen;
+  uint32_t numProbs;
+  unsigned tempBufSize;
+  bool needFlush;
+  uint8_t tempBuf[LZMA_REQUIRED_INPUT_MAX];
+} CLzmaDec;
+
+
+/* There are two types of LZMA streams:
+     0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
+     1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
+
+typedef enum
+{
+  LZMA_FINISH_ANY,   /* finish at any point */
+  LZMA_FINISH_END    /* block must be finished at the end */
+} ELzmaFinishMode;
+
+/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
+
+   You must use LZMA_FINISH_END, when you know that current output buffer
+   covers last bytes of block. In other cases you must use LZMA_FINISH_ANY.
+
+   If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK,
+   and output value of destLen will be less than output buffer size limit.
+   You can check status result also.
+
+   You can use multiple checks to test data integrity after full decompression:
+     1) Check Result and "status" variable.
+     2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize.
+     3) Check that output(srcLen) = compressedSize, if you know real compressedSize.
+        You must use correct finish mode in that case. */
+
+typedef enum
+{
+  LZMA_STATUS_NOT_SPECIFIED,               /* use main error code instead */
+  LZMA_STATUS_FINISHED_WITH_MARK,          /* stream was finished with end mark. */
+  LZMA_STATUS_NOT_FINISHED,                /* stream was not finished */
+  LZMA_STATUS_NEEDS_MORE_INPUT,            /* you must provide more input bytes */
+  LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK  /* there is probability that stream was finished without end mark */
+} ELzmaStatus;
+
+/* ELzmaStatus is used only as output value for function call */
+
+
+bool LzmaDec_Init(CLzmaDec *p, const uint8_t *raw_props);
+void LzmaDec_Free(CLzmaDec *p);
+
+
+/* ---------- Buffer Interface ---------- */
+
+/* It's zlib-like interface.
+
+finishMode:
+  It has meaning only if the decoding reaches output limit (*destLen).
+  LZMA_FINISH_ANY - Decode just destLen bytes.
+  LZMA_FINISH_END - Stream must be finished after (*destLen).
+*/
+
+bool LzmaDec_DecodeToBuf( CLzmaDec *p, uint8_t *dest, uint32_t *destLen,
+                          const uint8_t *src, uint32_t *srcLen,
+                          ELzmaFinishMode finishMode, ELzmaStatus *status );