external/zxing/0001-Use-a-patch-file-to-document-changes-from-upstream-s.patch

   1 From 1d031966e08aef92ef742ae3cf91e1addaf95a47 Mon Sep 17 00:00:00 2001
   2 From: "Benjamin A. Beasley" <code@musicinmybrain.net>
   3 Date: Wed, 8 Dec 2021 18:14:54 -0500
   4 Subject: [PATCH 1/4] Use a patch file to document changes from upstream
   5  stb_image.h
   6
   7 ---
   8  thirdparty/stb/stb_image.patch | 15 +++++++++++++++
   9  1 file changed, 15 insertions(+)
  10  create mode 100644 thirdparty/stb/stb_image.patch
  11
  12 diff --git a/thirdparty/stb/stb_image.patch b/thirdparty/stb/stb_image.patch
  13 new file mode 100644
  14 index 0000000..5153728
  15 --- /dev/null
  16 +++ b/thirdparty/stb/stb_image.patch
  17 @@ -0,0 +1,15 @@
  18 +diff -Naur upstream/stb_image.h zxing/stb_image.h
  19 +--- upstream/stb_image.h       2021-12-08 18:11:28.170529096 -0500
  20 ++++ zxing/stb_image.h  2021-12-08 18:06:42.706717697 -0500
  21 +@@ -1644,7 +1644,11 @@
  22 +
  23 + static stbi_uc stbi__compute_y(int r, int g, int b)
  24 + {
  25 ++#if 0 // ori
  26 +    return (stbi_uc) (((r*77) + (g*150) +  (29*b)) >> 8);
  27 ++#else // zxing (see ReadBarcode.cpp:RGBToGray)
  28 ++   return (stbi_uc) ((306 * r + 601 * g + 117 * b + 0x200) >> 10);
  29 ++#endif
  30 + }
  31 + #endif
  32 +
  33 --
  34 2.33.1
  35