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[libpng17] Imported from libpng-1.7.0beta35.tar

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Glenn Randers-Pehrson
2014-08-06 08:51:39 -05:00
parent f3b1eb68a6
commit 1a9c06b11a
36 changed files with 112 additions and 368 deletions
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21
contrib/libtests/pngvalid.c
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@@ -6776,6 +6776,14 @@ image_transform_png_set_rgb_to_gray_ini(PNG_CONST image_transform *this,
* conversion adds another +/-2 in the 16-bit case and
* +/-(1<<(15-PNG_MAX_GAMMA_8)) in the 8-bit case.
*/
that->pm->limit +=
# if PNG_MAX_GAMMA_8 < 14
pow((that->this.bit_depth == 16 ?
8. : 6. + (1<<(15-PNG_MAX_GAMMA_8)))/65535, data.gamma);
# else
pow((that->this.bit_depth == 16 ?
8. : 8. + (1<<(15-PNG_MAX_GAMMA_8)))/65535, data.gamma);
# endif
that->pm->limit += pow(
# if PNG_MAX_GAMMA_8 < 14
(that->this.bit_depth == 16 ? 8. :
@@ -6801,13 +6809,12 @@ image_transform_png_set_rgb_to_gray_ini(PNG_CONST image_transform *this,
* internal calculation errors, not the actual limit imposed by
* pngvalid on the output errors.
*/
that->pm->limit += pow(
# if DIGITIZE
1.1
# else
1.
# endif
/255, data.gamma);
that->pm->limit +=
# if DIGITIZE
pow(1.1 /255, data.gamma);
# else
pow(1.0 /255, data.gamma);
# endif
}
}