AuroraMiddleware/libpng
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[devel] zlib text compression parameters fall back on non-IDAT parameters

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except for strategy which defaults to the zlib default.
This commit is contained in:
Glenn Randers-Pehrson 2011-04-01 15:24:18 -05:00
parent ec8296ab81
commit c683100e31
1 changed files with 8 additions and 8 deletions
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16
pngwutil.c
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@ -670,22 +670,22 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
png_ptr->zlib_text_strategy = Z_DEFAULT_STRATEGY;
if (!(png_ptr->flags & PNG_FLAG_ZTXT_CUSTOM_LEVEL))
png_ptr->zlib_text_level = Z_DEFAULT_COMPRESSION;
png_ptr->zlib_text_level = png_ptr->zlib_level;
if (!(png_ptr->flags & PNG_FLAG_ZTXT_CUSTOM_MEM_LEVEL))
png_ptr->zlib_text_mem_level = 8;
png_ptr->zlib_text_mem_level = png_ptr->zlib_mem_level;
if (!(png_ptr->flags & PNG_FLAG_ZTXT_CUSTOM_WINDOW_BITS))
png_ptr->zlib_text_window_bits = 15;
png_ptr->zlib_text_window_bits = png_ptr->zlib_window_bits;
if (!(png_ptr->flags & PNG_FLAG_ZTXT_CUSTOM_METHOD))
png_ptr->zlib_text_method = 8;
png_ptr->zlib_text_method = png_ptr->zlib_method;
#else
png_ptr->zlib_text_strategy = Z_DEFAULT_STRATEGY;
png_ptr->zlib_text_level = Z_DEFAULT_COMPRESSION;
png_ptr->zlib_text_mem_level = 8;
png_ptr->zlib_text_window_bits = 15;
png_ptr->zlib_text_method = 8;
png_ptr->zlib_text_level = png_ptr->zlib_level;
png_ptr->zlib_text_mem_level = png_ptr->zlib_mem_level;
png_ptr->zlib_text_window_bits = png_ptr->zlib_window_bits;
png_ptr->zlib_text_method = png_ptr->zlib_method;
#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */