Add 'neozip/' from commit 'c2712b8a345191f6ed79558c089777df94590087'

git-subtree-dir: neozip
git-subtree-mainline: b1e34e861b5d732afe828d58aad2c638135061fd
git-subtree-split: c2712b8a345191f6ed79558c089777df94590087

1 files changed, 119 insertions, 0 deletions

diff --git a/neozip/arch/s390/dfltcc_common.h b/neozip/arch/s390/dfltcc_common.h
new file mode 100644
index 0000000000..a6527ab5df
--- /dev/null
+++ b/neozip/arch/s390/dfltcc_common.h
@@ -0,0 +1,119 @@
+#ifndef DFLTCC_COMMON_H
+#define DFLTCC_COMMON_H
+
+#include "zutil.h"
+
+/*
+   Parameter Block for Query Available Functions.
+ */
+struct dfltcc_qaf_param {
+    char fns[16];
+    char reserved1[8];
+    char fmts[2];
+    char reserved2[6];
+} ALIGNED_(8);
+
+/*
+   Parameter Block for Generate Dynamic-Huffman Table, Compress and Expand.
+ */
+struct dfltcc_param_v0 {
+    uint16_t pbvn;                     /* Parameter-Block-Version Number */
+    uint8_t mvn;                       /* Model-Version Number */
+    uint8_t ribm;                      /* Reserved for IBM use */
+    uint32_t reserved32 : 31;
+    uint32_t cf : 1;                   /* Continuation Flag */
+    uint8_t reserved64[8];
+    uint32_t nt : 1;                   /* New Task */
+    uint32_t reserved129 : 1;
+    uint32_t cvt : 1;                  /* Check Value Type */
+    uint32_t reserved131 : 1;
+    uint32_t htt : 1;                  /* Huffman-Table Type */
+    uint32_t bcf : 1;                  /* Block-Continuation Flag */
+    uint32_t bcc : 1;                  /* Block Closing Control */
+    uint32_t bhf : 1;                  /* Block Header Final */
+    uint32_t reserved136 : 1;
+    uint32_t reserved137 : 1;
+    uint32_t dhtgc : 1;                /* DHT Generation Control */
+    uint32_t reserved139 : 5;
+    uint32_t reserved144 : 5;
+    uint32_t sbb : 3;                  /* Sub-Byte Boundary */
+    uint8_t oesc;                      /* Operation-Ending-Supplemental Code */
+    uint32_t reserved160 : 12;
+    uint32_t ifs : 4;                  /* Incomplete-Function Status */
+    uint16_t ifl;                      /* Incomplete-Function Length */
+    uint8_t reserved192[8];
+    uint8_t reserved256[8];
+    uint8_t reserved320[4];
+    uint16_t hl;                       /* History Length */
+    uint32_t reserved368 : 1;
+    uint16_t ho : 15;                  /* History Offset */
+    uint32_t cv;                       /* Check Value */
+    uint32_t eobs : 15;                /* End-of-block Symbol */
+    uint32_t reserved431: 1;
+    uint8_t eobl : 4;                  /* End-of-block Length */
+    uint32_t reserved436 : 12;
+    uint32_t reserved448 : 4;
+    uint16_t cdhtl : 12;               /* Compressed-Dynamic-Huffman Table
+                                          Length */
+    uint8_t reserved464[6];
+    uint8_t cdht[288];                 /* Compressed-Dynamic-Huffman Table */
+    uint8_t reserved[24];
+    uint8_t ribm2[8];                  /* Reserved for IBM use */
+    uint8_t csb[1152];                 /* Continuation-State Buffer */
+} ALIGNED_(8);
+
+/*
+   Extension of inflate_state and deflate_state.
+ */
+struct dfltcc_state {
+    struct dfltcc_param_v0 param;      /* Parameter block. */
+    struct dfltcc_qaf_param af;        /* Available functions. */
+    char msg[64];                      /* Buffer for strm->msg */
+};
+
+typedef struct {
+    struct dfltcc_state common;
+    uint16_t level_mask;               /* Levels on which to use DFLTCC */
+    uint32_t block_size;               /* New block each X bytes */
+    size_t block_threshold;            /* New block after total_in > X */
+    uint32_t dht_threshold;            /* New block only if avail_in >= X */
+} arch_deflate_state;
+
+typedef struct {
+    struct dfltcc_state common;
+} arch_inflate_state;
+
+/*
+   History buffer size.
+ */
+#define HB_BITS 15
+#define HB_SIZE (1 << HB_BITS)
+
+/*
+   Sizes of deflate block parts.
+ */
+#define DFLTCC_BLOCK_HEADER_BITS 3
+#define DFLTCC_HLITS_COUNT_BITS 5
+#define DFLTCC_HDISTS_COUNT_BITS 5
+#define DFLTCC_HCLENS_COUNT_BITS 4
+#define DFLTCC_MAX_HCLENS 19
+#define DFLTCC_HCLEN_BITS 3
+#define DFLTCC_MAX_HLITS 286
+#define DFLTCC_MAX_HDISTS 30
+#define DFLTCC_MAX_HLIT_HDIST_BITS 7
+#define DFLTCC_MAX_SYMBOL_BITS 16
+#define DFLTCC_MAX_EOBS_BITS 15
+#define DFLTCC_MAX_PADDING_BITS 7
+
+#define DEFLATE_BOUND_COMPLEN(source_len) \
+    ((DFLTCC_BLOCK_HEADER_BITS + \
+      DFLTCC_HLITS_COUNT_BITS + \
+      DFLTCC_HDISTS_COUNT_BITS + \
+      DFLTCC_HCLENS_COUNT_BITS + \
+      DFLTCC_MAX_HCLENS * DFLTCC_HCLEN_BITS + \
+      (DFLTCC_MAX_HLITS + DFLTCC_MAX_HDISTS) * DFLTCC_MAX_HLIT_HDIST_BITS + \
+      (source_len) * DFLTCC_MAX_SYMBOL_BITS + \
+      DFLTCC_MAX_EOBS_BITS + \
+      DFLTCC_MAX_PADDING_BITS) >> 3)
+
+#endif