/* libnsfb plotetr test program */ #include #include #include #include "libnsfb.h" #include "libnsfb_plot.h" #include "libnsfb_event.h" #define UNUSED(x) ((x) = (x)) int main(int argc, char **argv) { nsfb_t *nsfb; nsfb_event_t event; nsfb_bbox_t box; nsfb_bbox_t box2; uint8_t *fbptr; int fbstride; nsfb_point_t ctrla; nsfb_point_t ctrlb; int loop; nsfb_plot_pen_t pen; UNUSED(argc); UNUSED(argv); nsfb = nsfb_init(NSFB_FRONTEND_SDL); if (nsfb == NULL) { fprintf(stderr, "Unable to initialise nsfb with SDL frontend\n"); return 1; } if (nsfb_init_frontend(nsfb) == -1) { fprintf(stderr, "Unable to initialise nsfb frontend\n"); return 2; } /* get the geometry of the whole screen */ box.x0 = box.y0 = 0; nsfb_get_geometry(nsfb, &box.x1, &box.y1, NULL); nsfb_get_framebuffer(nsfb, &fbptr, &fbstride); /* claim the whole screen for update */ nsfb_claim(nsfb, &box); nsfb_plot_clg(nsfb, 0xffffffff); box2.x0=100; box2.y0=100; box2.x1=400; box2.y1=400; for (loop=-300;loop < 600;loop+=100) { ctrla.x = 100; ctrla.y = loop; ctrlb.x = 400; ctrlb.y = 500 - loop; nsfb_plot_cubic_bezier(nsfb, &box2, &ctrla, &ctrlb, 0xff000000); } pen.stroke_colour = 0xff000000; box2.x0=400; box2.y0=100; box2.x1=600; box2.y1=400; nsfb_plot_line(nsfb, &box2, &pen); box2.x0=800; box2.y0=100; box2.x1=600; box2.y1=400; nsfb_plot_line(nsfb, &box2, &pen); box2.x0=400; box2.y0=100; box2.x1=800; box2.y1=100; ctrla.x = 600; ctrla.y = 400; nsfb_plot_cubic_bezier(nsfb, &box2, &ctrla, &ctrla, 0xffff0000); box2.x0=400; box2.y0=100; box2.x1=800; box2.y1=100; ctrla.x = 600; ctrla.y = 400; nsfb_plot_quadratic_bezier(nsfb, &box2, &ctrla, 0xff0000ff); nsfb_update(nsfb, &box); while (event.type != NSFB_EVENT_CONTROL) nsfb_event(nsfb, &event, -1); return 0; }