138 lines
2.9 KiB
C
138 lines
2.9 KiB
C
/* libnsfb ploygon plotter test program */
|
|
|
|
#ifndef _POSIX_C_SOURCE
|
|
#define _POSIX_C_SOURCE 199506L
|
|
#endif
|
|
|
|
#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)
|
|
{
|
|
const char *fename;
|
|
enum nsfb_type_e fetype;
|
|
nsfb_t *nsfb;
|
|
|
|
int waitloop = 3;
|
|
|
|
nsfb_event_t event;
|
|
nsfb_bbox_t box;
|
|
uint8_t *fbptr;
|
|
int fbstride;
|
|
|
|
int sides;
|
|
int radius;
|
|
nsfb_point_t *points;
|
|
int loop;
|
|
int counter;
|
|
int colour;
|
|
|
|
if (argc < 2) {
|
|
fename="sdl";
|
|
} else {
|
|
fename = argv[1];
|
|
}
|
|
|
|
fetype = nsfb_type_from_name(fename);
|
|
if (fetype == NSFB_SURFACE_NONE) {
|
|
fprintf(stderr, "Unable to convert \"%s\" to nsfb surface type\n", fename);
|
|
return 1;
|
|
}
|
|
|
|
nsfb = nsfb_new(fetype);
|
|
if (nsfb == NULL) {
|
|
fprintf(stderr, "Unable to allocate \"%s\" nsfb surface\n", fename);
|
|
return 2;
|
|
}
|
|
|
|
if (nsfb_init(nsfb) == -1) {
|
|
fprintf(stderr, "Unable to initialise nsfb surface\n");
|
|
nsfb_free(nsfb);
|
|
return 4;
|
|
}
|
|
|
|
/* get the geometry of the whole screen */
|
|
box.x0 = box.y0 = 0;
|
|
nsfb_get_geometry(nsfb, &box.x1, &box.y1, NULL);
|
|
nsfb_get_buffer(nsfb, &fbptr, &fbstride);
|
|
|
|
radius = (box.x1 / 3);
|
|
sides = 5;
|
|
counter = 0;
|
|
|
|
for (counter = 0; counter < 20; counter++) {
|
|
/* 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));
|
|
points[(2 * loop) % sides].y = (box.y1 / 2) +
|
|
(radius * sin(loop * 2 * M_PI / sides));
|
|
}
|
|
|
|
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);
|
|
|
|
sides += 2;
|
|
|
|
nsfb_update(nsfb, &box);
|
|
sleepMilli(400);
|
|
}
|
|
|
|
/* wait for quit event or timeout */
|
|
while (waitloop > 0) {
|
|
if (nsfb_event(nsfb, &event, 1000) == false) {
|
|
break;
|
|
}
|
|
if (event.type == NSFB_EVENT_CONTROL) {
|
|
if (event.value.controlcode == NSFB_CONTROL_TIMEOUT) {
|
|
/* timeout */
|
|
waitloop--;
|
|
} else if (event.value.controlcode == NSFB_CONTROL_QUIT) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsfb_free(nsfb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* End:
|
|
*/
|