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[devel] Changed some errors to warnings, added missing "png_ptr" arg in

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some currently dead code in pngrtran.c that will be enabled in libpng-1.6
This commit is contained in:
Glenn Randers-Pehrson 2011-05-08 06:02:18 -05:00
parent 87952f0623
commit 8ba34667a1
1 changed files with 16 additions and 6 deletions
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22
pngrtran.c
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@ -194,7 +194,10 @@ png_set_alpha_mode_fixed(png_structp png_ptr, int mode,
* values are reasonable this may have to be changed.
*/
else if (output_gamma < 70000 || output_gamma > 300000)
png_error(png_ptr, "output gamma out of expected range");
{
png_warning(png_ptr, "ignoring output gamma out of expected range");
return;
}
/* The default file gamma is the inverse of the output gamma; the output
* gamma may be changed below so get the file value first:
@ -731,10 +734,16 @@ png_set_gamma_fixed(png_structp png_ptr, png_fixed_point scrn_gamma,
* undocumented API feature) it will only be made in 1.6.
*/
if (file_gamma <= 0)
png_error("invalid file gamma to png_set_gamma");
{
png_warning(png_ptr, "invalid file gamma to png_set_gamma");
return;
}
if (scrn_gamma <= 0)
png_error("invalid screen gamma to png_set_gamma");
{
png_warning(png_ptr, "invalid screen gamma to png_set_gamma");
return;
}
#endif
/* Set the gamma values unconditionally - this overrides the value in the PNG
@ -891,8 +900,8 @@ png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action,
break;
default:
png_error(png_ptr, "invalid error action to rgb_to_gray");
break;
png_warning(png_ptr, "invalid error action to rgb_to_gray");
return;
}
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
#ifdef PNG_READ_EXPAND_SUPPORTED
@ -1572,7 +1581,8 @@ png_init_read_transformations(png_structp png_ptr)
break;
default:
png_error(png_ptr, "invalid background gamma type");
png_warning (png_ptr, "invalid background gamma type");
return;
}
png_ptr->background_1.gray = png_gamma_correct(png_ptr,