[Git][freetype/freetype-demos][master] * graph/gblblit.c (gblender_blit_init): Fix for negative pitch.

[Alexei Podtelezhnikov (@apodtele)]

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

Commits:

• a005039b
  by Alexei Podtelezhnikov at 2022-09-15T23:39:08-04:00

  * graph/gblblit.c (gblender_blit_init): Fix for negative pitch.
  
  Reported by Anurag Thakur.
  

1 changed file:

• graph/gblblit.c

Changes:

graph/gblblit.c

---

...	...	@@ -329,6 +329,11 @@ gblender_blit_init( GBlenderBlit blit,
329	329	return -2;
330	330	}
331	331
	332	+ if ( src_pitch < 0 )
	333	+ src_buffer -= src_pitch * ( src_height - 1 );
	334	+ if ( dst_pitch < 0 )
	335	+ dst_buffer -= dst_pitch * ( dst_height - 1 );
	336	+
332	337	if ( dst_x < 0 )
333	338	{
334	339	src_width += dst_x;
...	...	@@ -360,14 +365,10 @@ gblender_blit_init( GBlenderBlit blit,
360	365	blit->height = src_height;
361	366
362	367	blit->src_pitch = src_pitch;
363		- if ( src_pitch < 0 )
364		- src_y -= src_height - 1;
365	368	blit->src_line = src_buffer + src_pitch * src_y;
366	369	blit->src_x = src_x;
367	370
368	371	blit->dst_pitch = dst_pitch;
369		- if ( dst_pitch < 0 )
370		- dst_y -= dst_height - 1;
371	372	blit->dst_line = dst_buffer + dst_pitch * dst_y;
372	373	blit->dst_x = dst_x;
373	374

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