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author | Lei Zhang <thestig@chromium.org> | 2018-09-04 22:42:56 +0000 |
---|---|---|
committer | Chromium commit bot <commit-bot@chromium.org> | 2018-09-04 22:42:56 +0000 |
commit | 424621e3129f7029283f72e953fe0c69f982d257 (patch) | |
tree | 47d64c877a652cffd8d6da60982f2f706a07ee22 /third_party/libpng16/pngpread.c | |
parent | d51c66c57a4fa6033f025d6ddd5d17a7d4e1d001 (diff) | |
download | pdfium-424621e3129f7029283f72e953fe0c69f982d257.tar.xz |
Revert "Update libpng from 1.6.22 -> 1.6.34"chromium/3543
This reverts commit 6b2e2f0ec7c5f629c5270d14c2339197af7392d8.
Reason for revert: Broke Chromium integration.
Original change's description:
> Update libpng from 1.6.22 -> 1.6.34
>
> Updates third_party/libpng16 to Chromium's third_party/libpng @
> e87a02987101e2dbe319a4aba6b52470f7624b4a and applies PDFium specific
> patches.
>
> BUG=chromium:880322
>
> Change-Id: I6724f55099c70a79da6d6e4863b9c6c9157ec571
> Reviewed-on: https://pdfium-review.googlesource.com/41910
> Reviewed-by: Lei Zhang <thestig@chromium.org>
> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
TBR=thestig@chromium.org,rharrison@chromium.org
Change-Id: I2fd1f78e5d07ca983b2430bf078544185292ee1d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:880322
Reviewed-on: https://pdfium-review.googlesource.com/41970
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Diffstat (limited to 'third_party/libpng16/pngpread.c')
-rw-r--r-- | third_party/libpng16/pngpread.c | 37 |
1 files changed, 14 insertions, 23 deletions
diff --git a/third_party/libpng16/pngpread.c b/third_party/libpng16/pngpread.c index fbe361dc34..a16fcbef3a 100644 --- a/third_party/libpng16/pngpread.c +++ b/third_party/libpng16/pngpread.c @@ -1,8 +1,8 @@ /* pngpread.c - read a png file in push mode * - * Last changed in libpng 1.6.32 [August 24, 2017] - * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson + * Last changed in libpng 1.6.18 [July 23, 2015] + * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -77,11 +77,11 @@ png_process_data_pause(png_structrp png_ptr, int save) png_uint_32 PNGAPI png_process_data_skip(png_structrp png_ptr) { -/* TODO: Deprecate and remove this API. - * Somewhere the implementation of this seems to have been lost, - * or abandoned. It was only to support some internal back-door access - * to png_struct) in libpng-1.4.x. - */ + /* TODO: Deprecate and remove this API. + * Somewhere the implementation of this seems to have been lost, + * or abandoned. It was only to support some internal back-door access + * to png_struct) in libpng-1.4.x. + */ png_app_warning(png_ptr, "png_process_data_skip is not implemented in any current version of libpng"); return 0; @@ -189,7 +189,6 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) png_crc_read(png_ptr, chunk_tag, 4); png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); png_check_chunk_name(png_ptr, png_ptr->chunk_name); - png_check_chunk_length(png_ptr, png_ptr->push_length); png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; } @@ -411,7 +410,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) { PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, - PNG_HANDLE_CHUNK_AS_DEFAULT); + PNG_HANDLE_CHUNK_AS_DEFAULT); } png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; @@ -502,10 +501,7 @@ png_push_save_buffer(png_structrp png_ptr) png_error(png_ptr, "Insufficient memory for save_buffer"); } - if (old_buffer) - memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); - else if (png_ptr->save_buffer_size) - png_error(png_ptr, "save_buffer error"); + memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); png_free(png_ptr, old_buffer); png_ptr->save_buffer_max = new_max; } @@ -522,7 +518,7 @@ png_push_save_buffer(png_structrp png_ptr) void /* PRIVATE */ png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer, - png_size_t buffer_length) + png_size_t buffer_length) { png_ptr->current_buffer = buffer; png_ptr->current_buffer_size = buffer_length; @@ -625,7 +621,7 @@ png_push_read_IDAT(png_structrp png_ptr) void /* PRIVATE */ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer, - png_size_t buffer_length) + png_size_t buffer_length) { /* The caller checks for a non-zero buffer length. */ if (!(buffer_length > 0) || buffer == NULL) @@ -685,12 +681,7 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer, png_warning(png_ptr, "Truncated compressed data in IDAT"); else - { - if (ret == Z_DATA_ERROR) - png_benign_error(png_ptr, "IDAT: ADLER32 checksum mismatch"); - else - png_error(png_ptr, "Decompression error in IDAT"); - } + png_error(png_ptr, "Decompression error in IDAT"); /* Skip the check on unprocessed input */ return; @@ -788,7 +779,7 @@ png_push_process_row(png_structrp png_ptr) { if (png_ptr->pass < 6) png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, - png_ptr->transformations); + png_ptr->transformations); switch (png_ptr->pass) { @@ -1050,7 +1041,7 @@ png_push_have_row(png_structrp png_ptr, png_bytep row) { if (png_ptr->row_fn != NULL) (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, - (int)png_ptr->pass); + (int)png_ptr->pass); } #ifdef PNG_READ_INTERLACING_SUPPORTED |