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Diffstat (limited to 'test/polystar2.c')
-rw-r--r-- | test/polystar2.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/test/polystar2.c b/test/polystar2.c new file mode 100644 index 0000000..0037f62 --- /dev/null +++ b/test/polystar2.c @@ -0,0 +1,102 @@ +/* libnsfb ploygon plotter test program */ + +#define _POSIX_C_SOURCE 199506L + +#include <stdio.h> +#include <stdbool.h> +#include <stdlib.h> +#include <math.h> + +#include "libnsfb.h" +#include "libnsfb_plot.h" +#include "libnsfb_event.h" + + +#include <time.h> +// Sleep milliseconds +static void sleepMilli(long ms) +{ + const struct timespec ts = {ms / 1000, ms % 1000 * 1000000}; + nanosleep(&ts, NULL); +} + +#define UNUSED(x) ((x) = (x)) + + +int main(int argc, char **argv) +{ + nsfb_t *nsfb; + nsfb_event_t event; + nsfb_bbox_t box; + uint8_t *fbptr; + int fbstride; + + int sides; + int radius; + nsfb_point_t *points; + int loop; + double rotate; + int counter; + int colour; + + 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); + + radius = (box.x1 / 3); + sides = 5; + counter = 0; + + for (rotate = 0; rotate < (2 * M_PI); rotate += (M_PI / 4)) { + /* claim the whole screen for update */ + nsfb_claim(nsfb, &box); + + nsfb_plot_clg(nsfb, 0xffffffff); + + points = malloc(sizeof(nsfb_point_t) * sides); + + for (loop = 0; loop < sides;loop++) { + points[(2 * loop) % sides].x = (box.x1 / 2) + + (radius * cos(loop * 2 * M_PI / sides + rotate)); + points[(2 * loop) % sides].y = (box.y1 / 2) + + (radius * sin(loop * 2 * M_PI / sides + rotate)); + } + + if (counter % 3 == 0) + colour = 0xffff0000; + else if (counter % 3 == 1) + colour = 0xff00ff00; + else + colour = 0xff0000ff; + + nsfb_plot_polygon(nsfb, (const int *)points, sides, colour); + free(points); + + if (counter % 2 == 0) + sides += 2; + counter++; + + nsfb_update(nsfb, &box); + sleepMilli(400); + } + + while (event.type != NSFB_EVENT_CONTROL) + nsfb_event(nsfb, &event, -1); + + return 0; +} |