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Imported from pngcrush-1.5.8.tar

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This commit is contained in:
Glenn Randers-Pehrson
2001-12-12 18:01:38 -06:00
parent f671d863fe
commit 2eb0852fd6
22 changed files with 323 additions and 208 deletions
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32
pngpread.c
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@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* libpng 1.2.0 - September 1, 2001
* libpng 1.2.1 - December 12, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -792,7 +792,7 @@ png_push_process_row(png_structp png_ptr)
{
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -800,13 +800,13 @@ png_push_process_row(png_structp png_ptr)
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
if (png_ptr->pass == 6 && png_ptr->height <= 4)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
break;
@@ -823,7 +823,7 @@ png_push_process_row(png_structp png_ptr)
{
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -839,14 +839,14 @@ png_push_process_row(png_structp png_ptr)
}
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
if (png_ptr->pass == 4) /* pass 3 might be empty */
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -864,7 +864,7 @@ png_push_process_row(png_structp png_ptr)
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -880,12 +880,12 @@ png_push_process_row(png_structp png_ptr)
}
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
if (png_ptr->pass == 6) /* pass 5 might be empty */
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
break;
@@ -900,7 +900,7 @@ png_push_process_row(png_structp png_ptr)
}
if (png_ptr->pass == 6) /* skip top generated row */
{
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
break;
@@ -911,7 +911,7 @@ png_push_process_row(png_structp png_ptr)
png_read_push_finish_row(png_ptr);
if (png_ptr->pass != 6)
break;
png_push_have_row(png_ptr, NULL);
png_push_have_row(png_ptr, png_bytep_NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -1072,8 +1072,8 @@ png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
text_ptr->compression = PNG_TEXT_COMPRESSION_NONE;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
text_ptr->lang = (char *)NULL;
text_ptr->lang_key = (char *)NULL;
text_ptr->lang = NULL;
text_ptr->lang_key = NULL;
#endif
text_ptr->text = text;
@@ -1257,8 +1257,8 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
text_ptr->lang = (char *)NULL;
text_ptr->lang_key = (char *)NULL;
text_ptr->lang = NULL;
text_ptr->lang_key = NULL;
#endif
text_ptr->text = text;