shithub: libgraphics

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patch a leak in rectclipline. fix a pixel-discarding logic statement.

--- a/clip.c

+++ b/clip.c

@@ -199,8 +199,10 @@

 	perc = len == 0? 0: hypot(Δp.x, Δp.y)/len;

 	lerpvertex(&v[1], v0, v1, perc);

-	*v0 = dupvertex(&v[0]);

-	*v1 = dupvertex(&v[1]);

+	delvattrs(v0);

+	delvattrs(v1);

+	*v0 = v[0];

+	*v1 = v[1];

 }

 /*

--- a/fb.c

+++ b/fb.c

@@ -92,7 +92,7 @@

 	/* first run: get the domain */

 	f = (float*)src->data;

 	len = Dx(dst->r)*Dy(dst->r);

-	for(min = 0, max = 0; len--; f++){

+	for(min = max = 0; len--; f++){

 		if(isInf(*f, -1))	/* -∞ is the DNotacolor of the z-buffer */

 			continue;

 		min = min(*f, min);

--- a/render.c

+++ b/render.c

@@ -260,8 +260,8 @@

 			z = flerp(prim->v[0].p.z, prim->v[1].p.z, perc);

 			/* TODO get rid of the bounds check and make sure the clipping doesn't overflow */

-			if((ropts & RODepth) &&

-			   !ptinrect(p, params->fb->r) || z <= getdepth(zr, p))

+			if(!ptinrect(p, params->fb->r) ||

+			   ((ropts & RODepth) && z <= getdepth(zr, p)))

 				goto discard;

 			/* interpolate z⁻¹ and get actual z */