Fix potential divide by zero for extremely narrow images

bangnoise · bangnoise · commit ed4b7854a297 · 2013-11-15T23:26:31.000Z
diff --git a/v002RuttEtraPlugIn.m b/v002RuttEtraPlugIn.m
@@ -849,7 +849,7 @@ - (void) createGLResourcesInContext:(CGLContextObj)cgl_ctx width:(NSUInteger)w h
         GLuint i = 0, x, y;
 		for( y = 0; y < h - 1 ; y++)
 		{
-			for(x = 0; x < w - 1 ; x++)
+			for(x = 0; x < w - 1 && w > 2; x++)
 			{
 				// this little aparatus makes sure we do not draw a line segment between different rows of scanline.
 				if (i % (w - 2) <= (w - 1))

Original file line number	Diff line number	Diff line change
`@@ -849,7 +849,7 @@ - (void) createGLResourcesInContext:(CGLContextObj)cgl_ctx width:(NSUInteger)w h`
`849`	`849`	`GLuint i = 0, x, y;`
`850`	`850`	`for( y = 0; y < h - 1 ; y++)`
`851`	`851`	`{`
`852`		`- for(x = 0; x < w - 1 ; x++)`
	`852`	`+ for(x = 0; x < w - 1 && w > 2; x++)`
`853`	`853`	`{`
`854`	`854`	`// this little aparatus makes sure we do not draw a line segment between different rows of scanline.`
`855`	`855`	`if (i % (w - 2) <= (w - 1))`