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authormaxim-yurchuk <[email protected]>2025-02-11 13:26:52 +0300
committermaxim-yurchuk <[email protected]>2025-02-11 13:57:59 +0300
commitf895bba65827952ed934b2b46f9a45e30a191fd2 (patch)
tree03260c906d9ec41cdc03e2a496b15d407459cec0 /contrib/python/Pillow/py3/libImaging/ZipDecode.c
parent5f7060466f7b9707818c2091e1a25c14f33c3474 (diff)
Remove deps on pandas
<https://github.com/ydb-platform/ydb/pull/14418> <https://github.com/ydb-platform/ydb/pull/14419> \-- аналогичные правки в gh Хочу залить в обход синка, чтобы посмотреть удалится ли pandas в нашей gh репе через piglet commit_hash:abca127aa37d4dbb94b07e1e18cdb8eb5b711860
Diffstat (limited to 'contrib/python/Pillow/py3/libImaging/ZipDecode.c')
-rw-r--r--contrib/python/Pillow/py3/libImaging/ZipDecode.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/contrib/python/Pillow/py3/libImaging/ZipDecode.c b/contrib/python/Pillow/py3/libImaging/ZipDecode.c
deleted file mode 100644
index 8749678341e..00000000000
--- a/contrib/python/Pillow/py3/libImaging/ZipDecode.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * The Python Imaging Library.
- * $Id$
- *
- * decoder for ZIP (deflated) image data.
- *
- * history:
- * 1996-12-14 fl Created (for PNG)
- * 1997-01-15 fl Prepared to read TIFF/ZIP
- * 2001-11-19 fl PNG incomplete read patch (from Bernhard Herzog)
- *
- * Copyright (c) Fredrik Lundh 1996.
- * Copyright (c) Secret Labs AB 1997-2001.
- *
- * See the README file for information on usage and redistribution.
- */
-
-#include "Imaging.h"
-
-#ifdef HAVE_LIBZ
-
-#include "ZipCodecs.h"
-
-static const int OFFSET[] = {7, 3, 3, 1, 1, 0, 0};
-static const int STARTING_COL[] = {0, 4, 0, 2, 0, 1, 0};
-static const int STARTING_ROW[] = {0, 0, 4, 0, 2, 0, 1};
-static const int COL_INCREMENT[] = {8, 8, 4, 4, 2, 2, 1};
-static const int ROW_INCREMENT[] = {8, 8, 8, 4, 4, 2, 2};
-
-/* Get the length in bytes of a scanline in the pass specified,
- * for interlaced images */
-static int
-get_row_len(ImagingCodecState state, int pass) {
- int row_len = (state->xsize + OFFSET[pass]) / COL_INCREMENT[pass];
- return ((row_len * state->bits) + 7) / 8;
-}
-
-/* -------------------------------------------------------------------- */
-/* Decoder */
-/* -------------------------------------------------------------------- */
-
-int
-ImagingZipDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t bytes) {
- ZIPSTATE *context = (ZIPSTATE *)state->context;
- int err;
- int n;
- UINT8 *ptr;
- int i, bpp;
- int row_len;
-
- if (!state->state) {
- /* Initialization */
- if (context->mode == ZIP_PNG || context->mode == ZIP_PNG_PALETTE) {
- context->prefix = 1; /* PNG */
- }
-
- /* overflow check for malloc */
- if (state->bytes > INT_MAX - 1) {
- state->errcode = IMAGING_CODEC_MEMORY;
- return -1;
- }
- /* Expand standard buffer to make room for the (optional) filter
- prefix, and allocate a buffer to hold the previous line */
- free(state->buffer);
- /* malloc check ok, overflow checked above */
- state->buffer = (UINT8 *)malloc(state->bytes + 1);
- context->previous = (UINT8 *)malloc(state->bytes + 1);
- if (!state->buffer || !context->previous) {
- state->errcode = IMAGING_CODEC_MEMORY;
- return -1;
- }
-
- context->last_output = 0;
-
- /* Initialize to black */
- memset(context->previous, 0, state->bytes + 1);
-
- /* Setup decompression context */
- context->z_stream.zalloc = (alloc_func)NULL;
- context->z_stream.zfree = (free_func)NULL;
- context->z_stream.opaque = (voidpf)NULL;
-
- err = inflateInit(&context->z_stream);
- if (err < 0) {
- state->errcode = IMAGING_CODEC_CONFIG;
- free(context->previous);
- context->previous = NULL;
- return -1;
- }
-
- if (context->interlaced) {
- context->pass = 0;
- state->y = STARTING_ROW[context->pass];
- }
-
- /* Ready to decode */
- state->state = 1;
- }
-
- if (context->interlaced) {
- row_len = get_row_len(state, context->pass);
- } else {
- row_len = state->bytes;
- }
-
- /* Setup the source buffer */
- context->z_stream.next_in = buf;
- context->z_stream.avail_in = bytes;
-
- /* Decompress what we've got this far */
- while (context->z_stream.avail_in > 0) {
- context->z_stream.next_out = state->buffer + context->last_output;
- context->z_stream.avail_out = row_len + context->prefix - context->last_output;
-
- err = inflate(&context->z_stream, Z_NO_FLUSH);
-
- if (err < 0) {
- /* Something went wrong inside the compression library */
- if (err == Z_DATA_ERROR) {
- state->errcode = IMAGING_CODEC_BROKEN;
- } else if (err == Z_MEM_ERROR) {
- state->errcode = IMAGING_CODEC_MEMORY;
- } else {
- state->errcode = IMAGING_CODEC_CONFIG;
- }
- free(context->previous);
- context->previous = NULL;
- inflateEnd(&context->z_stream);
- return -1;
- }
-
- n = row_len + context->prefix - context->z_stream.avail_out;
-
- if (n < row_len + context->prefix) {
- context->last_output = n;
- break; /* need more input data */
- }
-
- /* Apply predictor */
- switch (context->mode) {
- case ZIP_PNG:
- switch (state->buffer[0]) {
- case 0:
- break;
- case 1:
- /* prior */
- bpp = (state->bits + 7) / 8;
- for (i = bpp + 1; i <= row_len; i++) {
- state->buffer[i] += state->buffer[i - bpp];
- }
- break;
- case 2:
- /* up */
- for (i = 1; i <= row_len; i++) {
- state->buffer[i] += context->previous[i];
- }
- break;
- case 3:
- /* average */
- bpp = (state->bits + 7) / 8;
- for (i = 1; i <= bpp; i++) {
- state->buffer[i] += context->previous[i] / 2;
- }
- for (; i <= row_len; i++) {
- state->buffer[i] +=
- (state->buffer[i - bpp] + context->previous[i]) / 2;
- }
- break;
- case 4:
- /* paeth filtering */
- bpp = (state->bits + 7) / 8;
- for (i = 1; i <= bpp; i++) {
- state->buffer[i] += context->previous[i];
- }
- for (; i <= row_len; i++) {
- int a, b, c;
- int pa, pb, pc;
-
- /* fetch pixels */
- a = state->buffer[i - bpp];
- b = context->previous[i];
- c = context->previous[i - bpp];
-
- /* distances to surrounding pixels */
- pa = abs(b - c);
- pb = abs(a - c);
- pc = abs(a + b - 2 * c);
-
- /* pick predictor with the shortest distance */
- state->buffer[i] += (pa <= pb && pa <= pc) ? a
- : (pb <= pc) ? b
- : c;
- }
- break;
- default:
- state->errcode = IMAGING_CODEC_UNKNOWN;
- free(context->previous);
- context->previous = NULL;
- inflateEnd(&context->z_stream);
- return -1;
- }
- break;
- case ZIP_TIFF_PREDICTOR:
- bpp = (state->bits + 7) / 8;
- for (i = bpp + 1; i <= row_len; i++) {
- state->buffer[i] += state->buffer[i - bpp];
- }
- break;
- }
-
- /* Stuff data into the image */
- if (context->interlaced) {
- int col = STARTING_COL[context->pass];
- if (state->bits >= 8) {
- /* Stuff pixels in their correct location, one by one */
- for (i = 0; i < row_len; i += ((state->bits + 7) / 8)) {
- state->shuffle(
- (UINT8 *)im->image[state->y] + col * im->pixelsize,
- state->buffer + context->prefix + i,
- 1);
- col += COL_INCREMENT[context->pass];
- }
- } else {
- /* Handle case with more than a pixel in each byte */
- int row_bits = ((state->xsize + OFFSET[context->pass]) /
- COL_INCREMENT[context->pass]) *
- state->bits;
- for (i = 0; i < row_bits; i += state->bits) {
- UINT8 byte = *(state->buffer + context->prefix + (i / 8));
- byte <<= (i % 8);
- state->shuffle(
- (UINT8 *)im->image[state->y] + col * im->pixelsize, &byte, 1);
- col += COL_INCREMENT[context->pass];
- }
- }
- /* Find next valid scanline */
- state->y += ROW_INCREMENT[context->pass];
- while (state->y >= state->ysize || row_len <= 0) {
- context->pass++;
- if (context->pass == 7) {
- /* Force exit below */
- state->y = state->ysize;
- break;
- }
- state->y = STARTING_ROW[context->pass];
- row_len = get_row_len(state, context->pass);
- /* Since we're moving to the "first" line, the previous line
- * should be black to make filters work correctly */
- memset(state->buffer, 0, state->bytes + 1);
- }
- } else {
- state->shuffle(
- (UINT8 *)im->image[state->y + state->yoff] +
- state->xoff * im->pixelsize,
- state->buffer + context->prefix,
- state->xsize);
- state->y++;
- }
-
- /* all inflate output has been consumed */
- context->last_output = 0;
-
- if (state->y >= state->ysize || err == Z_STREAM_END) {
- /* The image and the data should end simultaneously */
- /* if (state->y < state->ysize || err != Z_STREAM_END)
- state->errcode = IMAGING_CODEC_BROKEN; */
-
- free(context->previous);
- context->previous = NULL;
- inflateEnd(&context->z_stream);
- return -1; /* end of file (errcode=0) */
- }
-
- /* Swap buffer pointers */
- ptr = state->buffer;
- state->buffer = context->previous;
- context->previous = ptr;
- }
-
- return bytes; /* consumed all of it */
-}
-
-int
-ImagingZipDecodeCleanup(ImagingCodecState state) {
- /* called to free the decompression engine when the decode terminates
- due to a corrupt or truncated image
- */
- ZIPSTATE *context = (ZIPSTATE *)state->context;
-
- /* Clean up */
- if (context->previous) {
- inflateEnd(&context->z_stream);
- free(context->previous);
- context->previous = NULL;
- }
- return -1;
-}
-
-#endif