git: 9front

Info  •  Files  •  Log  •  Branches

devdraw: implement affinewarp protocol message 'a'

--- a/sys/src/9/port/devdraw.c

+++ b/sys/src/9/port/devdraw.c

@@ -852,6 +852,14 @@

 	p->y = BGLONG(a+1*4);

 }

+void

+drawwarp(Warp w, uchar *a)

+{

+	w[0][0] = BGLONG(a+0*3*4+0*4); w[0][1] = BGLONG(a+0*3*4+1*4); w[0][2] = BGLONG(a+0*3*4+2*4);

+	w[1][0] = BGLONG(a+1*3*4+0*4); w[1][1] = BGLONG(a+1*3*4+1*4); w[1][2] = BGLONG(a+1*3*4+2*4);

+	w[2][0] = BGLONG(a+2*3*4+0*4); w[2][1] = BGLONG(a+2*3*4+1*4); w[2][2] = BGLONG(a+2*3*4+2*4);

+}

+

 Point

 drawchar(Memimage *dst, Memimage *rdst, Point p, Memimage *src, Point *sp, DImage *font, int index, int op)

 {

@@ -1408,6 +1416,7 @@

 	Refx *refx;

 	CScreen *cs;

 	Refreshfn reffn;

+	Warp w;

 	a = av;

 	m = 0;

@@ -1496,6 +1505,23 @@

 				error(Edrawmem);

 			}

 			memfillcolor(i, value);

+			continue;

+

+		/* apply affine transform: 'a' dstid[4] R[4*4] srcid[4] P[2*4] M[3*3*4] smooth[1] */

+		case 'a':

+			printmesg(fmt="LRLPM", a, 0);

+			m = 1+4+4*4+4+2*4+3*3*4+1;

+			if(n < m)

+				error(Eshortdraw);

+			dst = drawimage(client, a+1);

+			dstid = BGLONG(a+1);

+			drawrectangle(&r, a+5);

+			src = drawimage(client, a+21);

+			drawpoint(&p, a+25);

+			drawwarp(w, a+33);

+			if(memaffinewarp(dst, r, src, p, w, a[33+3*3*4]) < 0)

+				error("memaffinewarp failed");

+			dstflush(dstid, dst, r);

 			continue;

 		/* allocate screen: 'A' id[4] imageid[4] fillid[4] public[1] */

-- 

⑨