KIKIMR-19287: add task_stats_drawing script

1 files changed, 731 insertions, 0 deletions

diff --git a/contrib/libs/libtiff/tif_zip.c b/contrib/libs/libtiff/tif_zip.c
new file mode 100644
index 0000000000..53344f3e9d
--- /dev/null
+++ b/contrib/libs/libtiff/tif_zip.c
@@ -0,0 +1,731 @@
+/*
+ * Copyright (c) 1995-1997 Sam Leffler
+ * Copyright (c) 1995-1997 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the names of
+ * Sam Leffler and Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Sam Leffler and Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "tiffiop.h"
+#ifdef ZIP_SUPPORT
+/*
+ * TIFF Library.
+ *
+ * ZIP (aka Deflate) Compression Support
+ *
+ * This file is an interface to the zlib library written by
+ * Jean-loup Gailly and Mark Adler.  You must use version 1.0 or later
+ * of the library.
+ *
+ * Optionally, libdeflate (https://github.com/ebiggers/libdeflate) may be used
+ * to do the compression and decompression, but only for whole strips and tiles.
+ * For scanline access, zlib will be sued as a fallback.
+ */
+#include "tif_predict.h"
+#include "zlib.h"
+
+#if LIBDEFLATE_SUPPORT
+#error #include "libdeflate.h"
+#endif
+#define LIBDEFLATE_MAX_COMPRESSION_LEVEL 12
+
+#include <stdio.h>
+
+/*
+ * Sigh, ZLIB_VERSION is defined as a string so there's no
+ * way to do a proper check here.  Instead we guess based
+ * on the presence of #defines that were added between the
+ * 0.95 and 1.0 distributions.
+ */
+#if !defined(Z_NO_COMPRESSION) || !defined(Z_DEFLATED)
+#error "Antiquated ZLIB software; you must use version 1.0 or later"
+#endif
+
+#define SAFE_MSG(sp) ((sp)->stream.msg == NULL ? "" : (sp)->stream.msg)
+
+/*
+ * State block for each open TIFF
+ * file using ZIP compression/decompression.
+ */
+typedef struct
+{
+    TIFFPredictorState predict;
+    z_stream stream;
+    int zipquality; /* compression level */
+    int state;      /* state flags */
+    int subcodec;   /* DEFLATE_SUBCODEC_ZLIB or DEFLATE_SUBCODEC_LIBDEFLATE */
+#if LIBDEFLATE_SUPPORT
+    int libdeflate_state; /* -1 = until first time ZIPEncode() / ZIPDecode() is
+                             called, 0 = use zlib, 1 = use libdeflate */
+    struct libdeflate_decompressor *libdeflate_dec;
+    struct libdeflate_compressor *libdeflate_enc;
+#endif
+#define ZSTATE_INIT_DECODE 0x01
+#define ZSTATE_INIT_ENCODE 0x02
+
+    TIFFVGetMethod vgetparent; /* super-class method */
+    TIFFVSetMethod vsetparent; /* super-class method */
+} ZIPState;
+
+#define ZState(tif) ((ZIPState *)(tif)->tif_data)
+#define DecoderState(tif) ZState(tif)
+#define EncoderState(tif) ZState(tif)
+
+static int ZIPEncode(TIFF *tif, uint8_t *bp, tmsize_t cc, uint16_t s);
+static int ZIPDecode(TIFF *tif, uint8_t *op, tmsize_t occ, uint16_t s);
+
+static int ZIPFixupTags(TIFF *tif)
+{
+    (void)tif;
+    return (1);
+}
+
+static int ZIPSetupDecode(TIFF *tif)
+{
+    static const char module[] = "ZIPSetupDecode";
+    ZIPState *sp = DecoderState(tif);
+
+    assert(sp != NULL);
+
+    /* if we were last encoding, terminate this mode */
+    if (sp->state & ZSTATE_INIT_ENCODE)
+    {
+        deflateEnd(&sp->stream);
+        sp->state = 0;
+    }
+
+    /* This function can possibly be called several times by */
+    /* PredictorSetupDecode() if this function succeeds but */
+    /* PredictorSetup() fails */
+    if ((sp->state & ZSTATE_INIT_DECODE) == 0 &&
+        inflateInit(&sp->stream) != Z_OK)
+    {
+        TIFFErrorExtR(tif, module, "%s", SAFE_MSG(sp));
+        return (0);
+    }
+    else
+    {
+        sp->state |= ZSTATE_INIT_DECODE;
+        return (1);
+    }
+}
+
+/*
+ * Setup state for decoding a strip.
+ */
+static int ZIPPreDecode(TIFF *tif, uint16_t s)
+{
+    ZIPState *sp = DecoderState(tif);
+
+    (void)s;
+    assert(sp != NULL);
+
+    if ((sp->state & ZSTATE_INIT_DECODE) == 0)
+        tif->tif_setupdecode(tif);
+
+#if LIBDEFLATE_SUPPORT
+    sp->libdeflate_state = -1;
+#endif
+    sp->stream.next_in = tif->tif_rawdata;
+    assert(sizeof(sp->stream.avail_in) == 4); /* if this assert gets raised,
+         we need to simplify this code to reflect a ZLib that is likely updated
+         to deal with 8byte memory sizes, though this code will respond
+         appropriately even before we simplify it */
+    sp->stream.avail_in = (uint64_t)tif->tif_rawcc < 0xFFFFFFFFU
+                              ? (uInt)tif->tif_rawcc
+                              : 0xFFFFFFFFU;
+    return (inflateReset(&sp->stream) == Z_OK);
+}
+
+static int ZIPDecode(TIFF *tif, uint8_t *op, tmsize_t occ, uint16_t s)
+{
+    static const char module[] = "ZIPDecode";
+    ZIPState *sp = DecoderState(tif);
+
+    (void)s;
+    assert(sp != NULL);
+    assert(sp->state == ZSTATE_INIT_DECODE);
+
+#if LIBDEFLATE_SUPPORT
+    if (sp->libdeflate_state == 1)
+        return 0;
+
+    /* If we have libdeflate support and we are asked to read a whole */
+    /* strip/tile, then go for using it */
+    do
+    {
+        TIFFDirectory *td = &tif->tif_dir;
+
+        if (sp->libdeflate_state == 0)
+            break;
+        if (sp->subcodec == DEFLATE_SUBCODEC_ZLIB)
+            break;
+
+        /* Check if we are in the situation where we can use libdeflate */
+        if (isTiled(tif))
+        {
+            if (TIFFTileSize64(tif) != (uint64_t)occ)
+                break;
+        }
+        else
+        {
+            uint32_t strip_height = td->td_imagelength - tif->tif_row;
+            if (strip_height > td->td_rowsperstrip)
+                strip_height = td->td_rowsperstrip;
+            if (TIFFVStripSize64(tif, strip_height) != (uint64_t)occ)
+                break;
+        }
+
+        /* Check for overflow */
+        if ((size_t)tif->tif_rawcc != (uint64_t)tif->tif_rawcc)
+            break;
+        if ((size_t)occ != (uint64_t)occ)
+            break;
+
+        /* Go for decompression using libdeflate */
+        {
+            enum libdeflate_result res;
+            if (sp->libdeflate_dec == NULL)
+            {
+                sp->libdeflate_dec = libdeflate_alloc_decompressor();
+                if (sp->libdeflate_dec == NULL)
+                {
+                    break;
+                }
+            }
+
+            sp->libdeflate_state = 1;
+
+            res = libdeflate_zlib_decompress(sp->libdeflate_dec, tif->tif_rawcp,
+                                             (size_t)tif->tif_rawcc, op,
+                                             (size_t)occ, NULL);
+
+            tif->tif_rawcp += tif->tif_rawcc;
+            tif->tif_rawcc = 0;
+
+            /* We accept LIBDEFLATE_INSUFFICIENT_SPACE has a return */
+            /* There are odd files in the wild where the last strip, when */
+            /* it is smaller in height than td_rowsperstrip, actually contains
+             */
+            /* data for td_rowsperstrip lines. Just ignore that silently. */
+            if (res != LIBDEFLATE_SUCCESS &&
+                res != LIBDEFLATE_INSUFFICIENT_SPACE)
+            {
+                TIFFErrorExtR(tif, module, "Decoding error at scanline %lu",
+                              (unsigned long)tif->tif_row);
+                return 0;
+            }
+
+            return 1;
+        }
+    } while (0);
+    sp->libdeflate_state = 0;
+#endif /* LIBDEFLATE_SUPPORT */
+
+    sp->stream.next_in = tif->tif_rawcp;
+
+    sp->stream.next_out = op;
+    assert(sizeof(sp->stream.avail_out) == 4); /* if this assert gets raised,
+         we need to simplify this code to reflect a ZLib that is likely updated
+         to deal with 8byte memory sizes, though this code will respond
+         appropriately even before we simplify it */
+    do
+    {
+        int state;
+        uInt avail_in_before = (uint64_t)tif->tif_rawcc <= 0xFFFFFFFFU
+                                   ? (uInt)tif->tif_rawcc
+                                   : 0xFFFFFFFFU;
+        uInt avail_out_before =
+            (uint64_t)occ < 0xFFFFFFFFU ? (uInt)occ : 0xFFFFFFFFU;
+        sp->stream.avail_in = avail_in_before;
+        sp->stream.avail_out = avail_out_before;
+        /* coverity[overrun-buffer-arg] */
+        state = inflate(&sp->stream, Z_PARTIAL_FLUSH);
+        tif->tif_rawcc -= (avail_in_before - sp->stream.avail_in);
+        occ -= (avail_out_before - sp->stream.avail_out);
+        if (state == Z_STREAM_END)
+            break;
+        if (state == Z_DATA_ERROR)
+        {
+            TIFFErrorExtR(tif, module, "Decoding error at scanline %lu, %s",
+                          (unsigned long)tif->tif_row, SAFE_MSG(sp));
+            return (0);
+        }
+        if (state != Z_OK)
+        {
+            TIFFErrorExtR(tif, module, "ZLib error: %s", SAFE_MSG(sp));
+            return (0);
+        }
+    } while (occ > 0);
+    if (occ != 0)
+    {
+        TIFFErrorExtR(tif, module,
+                      "Not enough data at scanline %lu (short %" PRIu64
+                      " bytes)",
+                      (unsigned long)tif->tif_row, (uint64_t)occ);
+        return (0);
+    }
+
+    tif->tif_rawcp = sp->stream.next_in;
+
+    return (1);
+}
+
+static int ZIPSetupEncode(TIFF *tif)
+{
+    static const char module[] = "ZIPSetupEncode";
+    ZIPState *sp = EncoderState(tif);
+    int cappedQuality;
+
+    assert(sp != NULL);
+    if (sp->state & ZSTATE_INIT_DECODE)
+    {
+        inflateEnd(&sp->stream);
+        sp->state = 0;
+    }
+
+    cappedQuality = sp->zipquality;
+    if (cappedQuality > Z_BEST_COMPRESSION)
+        cappedQuality = Z_BEST_COMPRESSION;
+
+    if (deflateInit(&sp->stream, cappedQuality) != Z_OK)
+    {
+        TIFFErrorExtR(tif, module, "%s", SAFE_MSG(sp));
+        return (0);
+    }
+    else
+    {
+        sp->state |= ZSTATE_INIT_ENCODE;
+        return (1);
+    }
+}
+
+/*
+ * Reset encoding state at the start of a strip.
+ */
+static int ZIPPreEncode(TIFF *tif, uint16_t s)
+{
+    ZIPState *sp = EncoderState(tif);
+
+    (void)s;
+    assert(sp != NULL);
+    if (sp->state != ZSTATE_INIT_ENCODE)
+        tif->tif_setupencode(tif);
+
+#if LIBDEFLATE_SUPPORT
+    sp->libdeflate_state = -1;
+#endif
+    sp->stream.next_out = tif->tif_rawdata;
+    assert(sizeof(sp->stream.avail_out) == 4); /* if this assert gets raised,
+         we need to simplify this code to reflect a ZLib that is likely updated
+         to deal with 8byte memory sizes, though this code will respond
+         appropriately even before we simplify it */
+    sp->stream.avail_out = (uint64_t)tif->tif_rawdatasize <= 0xFFFFFFFFU
+                               ? (uInt)tif->tif_rawdatasize
+                               : 0xFFFFFFFFU;
+    return (deflateReset(&sp->stream) == Z_OK);
+}
+
+/*
+ * Encode a chunk of pixels.
+ */
+static int ZIPEncode(TIFF *tif, uint8_t *bp, tmsize_t cc, uint16_t s)
+{
+    static const char module[] = "ZIPEncode";
+    ZIPState *sp = EncoderState(tif);
+
+    assert(sp != NULL);
+    assert(sp->state == ZSTATE_INIT_ENCODE);
+
+    (void)s;
+
+#if LIBDEFLATE_SUPPORT
+    if (sp->libdeflate_state == 1)
+        return 0;
+
+    /* If we have libdeflate support and we are asked to write a whole */
+    /* strip/tile, then go for using it */
+    do
+    {
+        TIFFDirectory *td = &tif->tif_dir;
+
+        if (sp->libdeflate_state == 0)
+            break;
+        if (sp->subcodec == DEFLATE_SUBCODEC_ZLIB)
+            break;
+
+        /* Libdeflate does not support the 0-compression level */
+        if (sp->zipquality == Z_NO_COMPRESSION)
+            break;
+
+        /* Check if we are in the situation where we can use libdeflate */
+        if (isTiled(tif))
+        {
+            if (TIFFTileSize64(tif) != (uint64_t)cc)
+                break;
+        }
+        else
+        {
+            uint32_t strip_height = td->td_imagelength - tif->tif_row;
+            if (strip_height > td->td_rowsperstrip)
+                strip_height = td->td_rowsperstrip;
+            if (TIFFVStripSize64(tif, strip_height) != (uint64_t)cc)
+                break;
+        }
+
+        /* Check for overflow */
+        if ((size_t)tif->tif_rawdatasize != (uint64_t)tif->tif_rawdatasize)
+            break;
+        if ((size_t)cc != (uint64_t)cc)
+            break;
+
+        /* Go for compression using libdeflate */
+        {
+            size_t nCompressedBytes;
+            if (sp->libdeflate_enc == NULL)
+            {
+                /* To get results as good as zlib, we asked for an extra */
+                /* level of compression */
+                sp->libdeflate_enc = libdeflate_alloc_compressor(
+                    sp->zipquality == Z_DEFAULT_COMPRESSION ? 7
+                    : sp->zipquality >= 6 && sp->zipquality <= 9
+                        ? sp->zipquality + 1
+                        : sp->zipquality);
+                if (sp->libdeflate_enc == NULL)
+                {
+                    TIFFErrorExtR(tif, module, "Cannot allocate compressor");
+                    break;
+                }
+            }
+
+            /* Make sure the output buffer is large enough for the worse case.
+             */
+            /* In TIFFWriteBufferSetup(), when libtiff allocates the buffer */
+            /* we've taken a 10% margin over the uncompressed size, which should
+             */
+            /* be large enough even for the the worse case scenario. */
+            if (libdeflate_zlib_compress_bound(sp->libdeflate_enc, (size_t)cc) >
+                (size_t)tif->tif_rawdatasize)
+            {
+                break;
+            }
+
+            sp->libdeflate_state = 1;
+            nCompressedBytes = libdeflate_zlib_compress(
+                sp->libdeflate_enc, bp, (size_t)cc, tif->tif_rawdata,
+                (size_t)tif->tif_rawdatasize);
+
+            if (nCompressedBytes == 0)
+            {
+                TIFFErrorExtR(tif, module, "Encoder error at scanline %lu",
+                              (unsigned long)tif->tif_row);
+                return 0;
+            }
+
+            tif->tif_rawcc = nCompressedBytes;
+
+            if (!TIFFFlushData1(tif))
+                return 0;
+
+            return 1;
+        }
+    } while (0);
+    sp->libdeflate_state = 0;
+#endif /* LIBDEFLATE_SUPPORT */
+
+    sp->stream.next_in = bp;
+    assert(sizeof(sp->stream.avail_in) == 4); /* if this assert gets raised,
+         we need to simplify this code to reflect a ZLib that is likely updated
+         to deal with 8byte memory sizes, though this code will respond
+         appropriately even before we simplify it */
+    do
+    {
+        uInt avail_in_before =
+            (uint64_t)cc <= 0xFFFFFFFFU ? (uInt)cc : 0xFFFFFFFFU;
+        sp->stream.avail_in = avail_in_before;
+        /* coverity[overrun-buffer-arg] */
+        if (deflate(&sp->stream, Z_NO_FLUSH) != Z_OK)
+        {
+            TIFFErrorExtR(tif, module, "Encoder error: %s", SAFE_MSG(sp));
+            return (0);
+        }
+        if (sp->stream.avail_out == 0)
+        {
+            tif->tif_rawcc = tif->tif_rawdatasize;
+            if (!TIFFFlushData1(tif))
+                return 0;
+            sp->stream.next_out = tif->tif_rawdata;
+            sp->stream.avail_out = (uint64_t)tif->tif_rawdatasize <= 0xFFFFFFFFU
+                                       ? (uInt)tif->tif_rawdatasize
+                                       : 0xFFFFFFFFU;
+        }
+        cc -= (avail_in_before - sp->stream.avail_in);
+    } while (cc > 0);
+    return (1);
+}
+
+/*
+ * Finish off an encoded strip by flushing the last
+ * string and tacking on an End Of Information code.
+ */
+static int ZIPPostEncode(TIFF *tif)
+{
+    static const char module[] = "ZIPPostEncode";
+    ZIPState *sp = EncoderState(tif);
+    int state;
+
+#if LIBDEFLATE_SUPPORT
+    if (sp->libdeflate_state == 1)
+        return 1;
+#endif
+
+    sp->stream.avail_in = 0;
+    do
+    {
+        state = deflate(&sp->stream, Z_FINISH);
+        switch (state)
+        {
+            case Z_STREAM_END:
+            case Z_OK:
+                if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize)
+                {
+                    tif->tif_rawcc =
+                        tif->tif_rawdatasize - sp->stream.avail_out;
+                    if (!TIFFFlushData1(tif))
+                        return 0;
+                    sp->stream.next_out = tif->tif_rawdata;
+                    sp->stream.avail_out =
+                        (uint64_t)tif->tif_rawdatasize <= 0xFFFFFFFFU
+                            ? (uInt)tif->tif_rawdatasize
+                            : 0xFFFFFFFFU;
+                }
+                break;
+            default:
+                TIFFErrorExtR(tif, module, "ZLib error: %s", SAFE_MSG(sp));
+                return (0);
+        }
+    } while (state != Z_STREAM_END);
+    return (1);
+}
+
+static void ZIPCleanup(TIFF *tif)
+{
+    ZIPState *sp = ZState(tif);
+
+    assert(sp != 0);
+
+    (void)TIFFPredictorCleanup(tif);
+
+    tif->tif_tagmethods.vgetfield = sp->vgetparent;
+    tif->tif_tagmethods.vsetfield = sp->vsetparent;
+
+    if (sp->state & ZSTATE_INIT_ENCODE)
+    {
+        deflateEnd(&sp->stream);
+        sp->state = 0;
+    }
+    else if (sp->state & ZSTATE_INIT_DECODE)
+    {
+        inflateEnd(&sp->stream);
+        sp->state = 0;
+    }
+
+#if LIBDEFLATE_SUPPORT
+    if (sp->libdeflate_dec)
+        libdeflate_free_decompressor(sp->libdeflate_dec);
+    if (sp->libdeflate_enc)
+        libdeflate_free_compressor(sp->libdeflate_enc);
+#endif
+
+    _TIFFfreeExt(tif, sp);
+    tif->tif_data = NULL;
+
+    _TIFFSetDefaultCompressionState(tif);
+}
+
+static int ZIPVSetField(TIFF *tif, uint32_t tag, va_list ap)
+{
+    static const char module[] = "ZIPVSetField";
+    ZIPState *sp = ZState(tif);
+
+    switch (tag)
+    {
+        case TIFFTAG_ZIPQUALITY:
+            sp->zipquality = (int)va_arg(ap, int);
+            if (sp->zipquality < Z_DEFAULT_COMPRESSION ||
+                sp->zipquality > LIBDEFLATE_MAX_COMPRESSION_LEVEL)
+            {
+                TIFFErrorExtR(
+                    tif, module,
+                    "Invalid ZipQuality value. Should be in [-1,%d] range",
+                    LIBDEFLATE_MAX_COMPRESSION_LEVEL);
+                return 0;
+            }
+
+            if (sp->state & ZSTATE_INIT_ENCODE)
+            {
+                int cappedQuality = sp->zipquality;
+                if (cappedQuality > Z_BEST_COMPRESSION)
+                    cappedQuality = Z_BEST_COMPRESSION;
+                if (deflateParams(&sp->stream, cappedQuality,
+                                  Z_DEFAULT_STRATEGY) != Z_OK)
+                {
+                    TIFFErrorExtR(tif, module, "ZLib error: %s", SAFE_MSG(sp));
+                    return (0);
+                }
+            }
+
+#if LIBDEFLATE_SUPPORT
+            if (sp->libdeflate_enc)
+            {
+                libdeflate_free_compressor(sp->libdeflate_enc);
+                sp->libdeflate_enc = NULL;
+            }
+#endif
+
+            return (1);
+
+        case TIFFTAG_DEFLATE_SUBCODEC:
+            sp->subcodec = (int)va_arg(ap, int);
+            if (sp->subcodec != DEFLATE_SUBCODEC_ZLIB &&
+                sp->subcodec != DEFLATE_SUBCODEC_LIBDEFLATE)
+            {
+                TIFFErrorExtR(tif, module, "Invalid DeflateCodec value.");
+                return 0;
+            }
+#if !LIBDEFLATE_SUPPORT
+            if (sp->subcodec == DEFLATE_SUBCODEC_LIBDEFLATE)
+            {
+                TIFFErrorExtR(tif, module,
+                              "DeflateCodec = DEFLATE_SUBCODEC_LIBDEFLATE "
+                              "unsupported in this build");
+                return 0;
+            }
+#endif
+            return 1;
+
+        default:
+            return (*sp->vsetparent)(tif, tag, ap);
+    }
+    /*NOTREACHED*/
+}
+
+static int ZIPVGetField(TIFF *tif, uint32_t tag, va_list ap)
+{
+    ZIPState *sp = ZState(tif);
+
+    switch (tag)
+    {
+        case TIFFTAG_ZIPQUALITY:
+            *va_arg(ap, int *) = sp->zipquality;
+            break;
+
+        case TIFFTAG_DEFLATE_SUBCODEC:
+            *va_arg(ap, int *) = sp->subcodec;
+            break;
+
+        default:
+            return (*sp->vgetparent)(tif, tag, ap);
+    }
+    return (1);
+}
+
+static const TIFFField zipFields[] = {
+    {TIFFTAG_ZIPQUALITY, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT,
+     TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "", NULL},
+    {TIFFTAG_DEFLATE_SUBCODEC, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT,
+     TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "", NULL},
+};
+
+int TIFFInitZIP(TIFF *tif, int scheme)
+{
+    static const char module[] = "TIFFInitZIP";
+    ZIPState *sp;
+
+    assert((scheme == COMPRESSION_DEFLATE) ||
+           (scheme == COMPRESSION_ADOBE_DEFLATE));
+#ifdef NDEBUG
+    (void)scheme;
+#endif
+
+    /*
+     * Merge codec-specific tag information.
+     */
+    if (!_TIFFMergeFields(tif, zipFields, TIFFArrayCount(zipFields)))
+    {
+        TIFFErrorExtR(tif, module,
+                      "Merging Deflate codec-specific tags failed");
+        return 0;
+    }
+
+    /*
+     * Allocate state block so tag methods have storage to record values.
+     */
+    tif->tif_data = (uint8_t *)_TIFFcallocExt(tif, sizeof(ZIPState), 1);
+    if (tif->tif_data == NULL)
+        goto bad;
+    sp = ZState(tif);
+    sp->stream.zalloc = NULL;
+    sp->stream.zfree = NULL;
+    sp->stream.opaque = NULL;
+    sp->stream.data_type = Z_BINARY;
+
+    /*
+     * Override parent get/set field methods.
+     */
+    sp->vgetparent = tif->tif_tagmethods.vgetfield;
+    tif->tif_tagmethods.vgetfield = ZIPVGetField; /* hook for codec tags */
+    sp->vsetparent = tif->tif_tagmethods.vsetfield;
+    tif->tif_tagmethods.vsetfield = ZIPVSetField; /* hook for codec tags */
+
+    /* Default values for codec-specific fields */
+    sp->zipquality = Z_DEFAULT_COMPRESSION; /* default comp. level */
+    sp->state = 0;
+#if LIBDEFLATE_SUPPORT
+    sp->subcodec = DEFLATE_SUBCODEC_LIBDEFLATE;
+#else
+    sp->subcodec = DEFLATE_SUBCODEC_ZLIB;
+#endif
+
+    /*
+     * Install codec methods.
+     */
+    tif->tif_fixuptags = ZIPFixupTags;
+    tif->tif_setupdecode = ZIPSetupDecode;
+    tif->tif_predecode = ZIPPreDecode;
+    tif->tif_decoderow = ZIPDecode;
+    tif->tif_decodestrip = ZIPDecode;
+    tif->tif_decodetile = ZIPDecode;
+    tif->tif_setupencode = ZIPSetupEncode;
+    tif->tif_preencode = ZIPPreEncode;
+    tif->tif_postencode = ZIPPostEncode;
+    tif->tif_encoderow = ZIPEncode;
+    tif->tif_encodestrip = ZIPEncode;
+    tif->tif_encodetile = ZIPEncode;
+    tif->tif_cleanup = ZIPCleanup;
+    /*
+     * Setup predictor setup.
+     */
+    (void)TIFFPredictorInit(tif);
+    return (1);
+bad:
+    TIFFErrorExtR(tif, module, "No space for ZIP state block");
+    return (0);
+}
+#endif /* ZIP_SUPPORT */