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[devel] Relocate some png_debug() statements

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Putting them ahead of the test for png_ptr==NULL so the debug
statements accuratly reflect the fact that the function was entered.
This commit is contained in:
Glenn Randers-Pehrson 2009-08-15 22:02:26 -05:00
parent b3ce365d91
commit c81bb8a463
1 changed files with 6 additions and 5 deletions
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11
pngread.c
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@ -1,7 +1,7 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* Last changed in libpng 1.4.0 [August 15, 2009] * Last changed in libpng 1.4.0 [August 16, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -199,11 +199,11 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
void PNGAPI void PNGAPI
png_read_info(png_structp png_ptr, png_infop info_ptr) png_read_info(png_structp png_ptr, png_infop info_ptr)
{ {
png_debug(1, "in png_read_info");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
png_debug(1, "in png_read_info");
/* If we haven't checked all of the PNG signature bytes, do so now. */ /* If we haven't checked all of the PNG signature bytes, do so now. */
if (png_ptr->sig_bytes < 8) if (png_ptr->sig_bytes < 8)
{ {
@ -454,11 +454,12 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
PNG_CONST int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff}; PNG_CONST int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
#endif #endif
int ret; int ret;
if (png_ptr == NULL)
return;
png_debug2(1, "in png_read_row (row %lu, pass %d)", png_debug2(1, "in png_read_row (row %lu, pass %d)",
if (png_ptr == NULL)
return;
(unsigned long) png_ptr->row_number, png_ptr->pass); (unsigned long) png_ptr->row_number, png_ptr->pass);
if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
png_read_start_row(png_ptr); png_read_start_row(png_ptr);