numerous bigfixes in stroke->polygon conversion

[swftools.git] / lib / gfxpoly / test_stroke.c

diff --git a/lib/gfxpoly/test_stroke.c b/lib/gfxpoly/test_stroke.c
new file mode 100644 (file)
index 0000000..9068c57
--- /dev/null
+++ b/lib/gfxpoly/test_stroke.c
@@ -0,0 +1,130 @@
+#include <math.h>
+#include "../gfxtools.h"
+#include "stroke.h"
+
+int main()
+{
+    gfxline_t l[512], f[256*5];
+
+    int width=700,height=700;
+    gfxdevice_t dev;
+    gfxdevice_swf_init(&dev);
+    dev.setparameter(&dev, "framerate", "25.0");
+    int t;
+    for(t=0;t<300;t++) {
+       dev.startpage(&dev, 700,700);
+       /*gfxline_t*g = l;
+       while(g) {
+           g->x += g->sx;
+           g->y += g->sy;
+           if(g->sx || g->sy) {
+               if(g->x<200) {g->x=400-g->x;g->sx=-g->sx;}
+               if(g->y<200) {g->y=400-g->y;g->sy=-g->sy;}
+               if(g->x>500) {g->x=1000-g->x;g->sx=-g->sx;}
+               if(g->y>500) {g->y=1000-g->y;g->sy=-g->sy;}
+           }
+           g = g->next;
+       }*/
+
+       int i;
+       for(i=0;i<512;i++) {
+           double a = i*0.05+t*M_PI/150;
+           double r = 50+i*0.5;
+           l[i].x = cos(a)*r + width/2;
+           l[i].y = sin(a)*r + height/2;
+           l[i].sx = (int)((l[i].x-width/2)/30);
+           l[i].sy = (int)((l[i].y-height/2)/30);
+           l[i].sx = l[i].sy = 0;
+           l[i].type = gfx_lineTo;
+           l[i].next = &l[i+1];
+       }
+       l[0].type = gfx_moveTo;
+       l[i-1].next = 0;
+
+       int xx,yy;
+       i = 0;
+       for(yy=0;yy<16;yy++) 
+       for(xx=0;xx<16;xx++) if((xx^yy)&1) {
+           double x = -128+xx*64+t*128.0/300;
+           double y = -128+yy*64;//+t*64.0/300;
+           f[i].x = x;
+           f[i].y = y;
+           f[i].next = &f[i+1];f[i++].type = gfx_moveTo;
+           f[i].x = x+64;
+           f[i].y = y;
+           f[i].next = &f[i+1];f[i++].type = gfx_lineTo;
+           f[i].x = x+64;
+           f[i].y = y+64;
+           f[i].next = &f[i+1];f[i++].type = gfx_lineTo;
+           f[i].x = x;
+           f[i].y = y+64;
+           f[i].next = &f[i+1];f[i++].type = gfx_lineTo;
+           f[i].x = x;
+           f[i].y = y;
+           f[i].next = &f[i+1];f[i++].type = gfx_lineTo;
+       }
+       f[i-1].next = 0;
+
+       double width = 40;
+       
+       //gfxdrawer_t d;
+       //gfxdrawer_target_gfxline(&d);
+       //draw_stroke(l, &d, width, gfx_capRound, gfx_joinBevel, 500);
+       //gfxline_t*line = (gfxline_t*)d.result(&d);
+
+       //gfxpoly_t*p = gfxpoly_fromstroke(l, width, gfx_capRound, gfx_joinRound, 500);
+       gfxpoly_t*p1 = gfxpoly_from_stroke(l, width, gfx_capRound, gfx_joinRound, 500, 0.05);
+       assert(gfxpoly_check(p1));
+       
+       //gfxpoly_t*p2 = gfxpoly_from_fill(f, 0.05);
+       gfxline_t*l2 = gfxline_clone(l);
+
+       double c = cos(t*M_PI/75);
+       double s = sin(t*M_PI/75);
+       static int x1 = 0, xdir = 1;
+       static int y1 = 0, ydir = 5;
+       x1+=xdir; if(x1>=150)  {x1=300-x1;xdir=-xdir;} if(x1<-150) {x1=-300-x1;xdir=-xdir;}
+       y1+=ydir; if(y1>=150)  {y1=300-y1;ydir=-ydir;} if(y1<-150) {y1=-300-y1;ydir=-ydir;}
+       gfxmatrix_t m = { c, s, -(350+x1)*c-350*s+350,
+                        -s, c,  350*s-(350+x1)*c+350};
+       gfxline_transform(l2, &m);
+       gfxpoly_t*p2 = gfxpoly_from_stroke(l2, width, gfx_capRound, gfx_joinRound, 500, 0.05);
+       assert(gfxpoly_check(p2));
+
+       gfxpoly_t*p3 = gfxpoly_intersect(p1, p2);
+       assert(gfxpoly_check(p3));
+       
+       //gfxpoly_t*p4 = gfxpoly_from_fill(f, 0.05);
+       //gfxpoly_t*p5 = gfxpoly_intersect(p1, p4);
+
+       gfxline_t*line = gfxline_from_gfxpoly(p3);
+       gfxpoly_destroy(p1);
+       gfxpoly_destroy(p2);
+       gfxpoly_destroy(p3);
+
+       //gfxline_dump(line, stdout, "");
+
+       gfxcolor_t blue = {255,0,0,255};
+       gfxline_t*r = gfxline_makerectangle(0,0,700,700);
+       dev.fill(&dev, r, &blue);
+
+       gfxcolor_t black = {255,0,0,64};
+       gfxcolor_t white = {255,255,255,255};
+       gfxcolor_t cyan = {255,0,192,192};
+       //dev.stroke(&dev, l, 2, &black, gfx_capRound, gfx_joinRound, 0);
+       //dev.stroke(&dev, line, 2, &cyan, gfx_capRound, gfx_joinRound, 0);
+       dev.fill(&dev, line, &black);
+       gfxmatrix_t m2 = {1.0,   0, -10,
+                          0, 1.0, -10};
+       gfxline_transform(line, &m2);
+       dev.fill(&dev, line, &cyan);
+       dev.stroke(&dev, line, 2.0, &white, gfx_capRound, gfx_joinRound, 0);
+
+       gfxline_free(line);
+       dev.endpage(&dev);
+    }
+
+    gfxresult_t* result = dev.finish(&dev);
+    result->save(result, "test.swf");
+    result->destroy(result);
+}