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#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "drmsetup.h"
#include "fb.h"
#include "fps.h"
#include "rototiller.h"
#include "util.h"
/* Copyright (C) 2016 Vito Caputo <vcaputo@pengaru.com> */
#define NUM_FB_PAGES 3
/* ^ By triple-buffering, we can have a page tied up being displayed, another
* tied up submitted and waiting for vsync, and still not block on getting
* another page so we can begin rendering another frame before vsync. With
* just two pages we end up twiddling thumbs until the vsync arrives.
*/
extern rototiller_renderer_t roto32_renderer;
extern rototiller_renderer_t roto64_renderer;
extern rototiller_renderer_t ray_renderer;
extern rototiller_renderer_t sparkler_renderer;
extern rototiller_renderer_t stars_renderer;
static rototiller_renderer_t *renderers[] = {
&roto32_renderer,
&roto64_renderer,
&ray_renderer,
&sparkler_renderer,
&stars_renderer,
};
static void renderer_select(int *renderer)
{
int i;
printf("\nRenderers\n");
for (i = 0; i < nelems(renderers); i++) {
printf(" %i: %s - %s\n", i, renderers[i]->name, renderers[i]->description);
}
ask_num(renderer, nelems(renderers) - 1, "Select renderer", 0);
}
int main(int argc, const char *argv[])
{
int drm_fd;
drmModeModeInfoPtr drm_mode;
uint32_t drm_crtc_id;
uint32_t drm_connector_id;
fb_t *fb;
int renderer;
drm_setup(&drm_fd, &drm_crtc_id, &drm_connector_id, &drm_mode);
renderer_select(&renderer);
pexit_if(!(fb = fb_new(drm_fd, drm_crtc_id, &drm_connector_id, 1, drm_mode, NUM_FB_PAGES)),
"unable to create fb");
pexit_if(!fps_setup(),
"unable to setup fps counter");
for (;;) {
fb_page_t *page;
fps_print(fb);
page = fb_page_get(fb);
renderers[renderer]->render(&page->fragment);
fb_page_put(fb, page);
}
fb_free(fb);
close(drm_fd);
return EXIT_SUCCESS;
}
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