[Git][freetype/freetype-demos][master] * src/ftlint.c (Checksum): Accept negative pitch.

[Alexei Podtelezhnikov (@apodtele)]

Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType Demo Programs

Commits:

• bac9a530
  by Alexei Podtelezhnikov at 2022-09-17T10:51:54-04:00

  * src/ftlint.c (Checksum): Accept negative pitch.
  

1 changed file:

• src/ftlint.c

Changes:

src/ftlint.c

---

...	...	@@ -134,7 +134,6 @@
134	134	}
135	135
136	136
137		- /* Calculate MD5 checksum; bitmap should have positive pitch */
138	137	static void
139	138	Checksum( FT_Bitmap* bitmap )
140	139	{
...	...	@@ -144,8 +143,12 @@
144	143
145	144	MD5_Init( &ctx );
146	145	if ( bitmap->buffer )
147		- MD5_Update( &ctx, bitmap->buffer,
148		- (unsigned long)bitmap->rows * (unsigned long)bitmap->pitch );
	146	+ {
	147	+ unsigned long pitch = bitmap->pitch > 0 ? bitmap->pitch
	148	+ : -bitmap->pitch;
	149	+
	150	+ MD5_Update( &ctx, bitmap->buffer, pitch * bitmap->rows );
	151	+ }
149	152	MD5_Final( md5, &ctx );
150	153
151	154	for ( i = 0; i < 16; i++ )

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