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simple-egl: Print fps for the spinning triangle

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This is not a benchmark.
This commit is contained in:
Kristian Høgsberg
2013-12-06 22:02:45 -08:00
parent 40c0c3f91e
commit deb322237b
1 changed files with 17 additions and 5 deletions
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clients/simple-egl.c
+17 -5
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@@ -87,6 +87,7 @@ struct window {
GLuint col;
} gl;
uint32_t benchmark_time, frames;
struct wl_egl_window *native;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
@@ -412,11 +413,11 @@ redraw(void *data, struct wl_callback *callback, uint32_t time)
{ 0, 0, 1, 0 },
{ 0, 0, 0, 1 }
};
static const int32_t speed_div = 5;
static uint32_t start_time = 0;
static const int32_t speed_div = 5, benchmark_interval = 5;
struct wl_region *region;
EGLint rect[4];
EGLint buffer_age = 0;
struct timeval tv;
assert(window->callback == callback);
window->callback = NULL;
@@ -427,10 +428,20 @@ redraw(void *data, struct wl_callback *callback, uint32_t time)
if (!window->configured)
return;
if (start_time == 0)
start_time = time;
gettimeofday(&tv, NULL);
time = tv.tv_sec * 1000 + tv.tv_usec / 1000;
if (window->frames == 0)
window->benchmark_time = time;
if (time - window->benchmark_time > (benchmark_interval * 1000)) {
printf("%d frames in %d seconds: %f fps\n",
window->frames,
benchmark_interval,
(float) window->frames / benchmark_interval);
window->benchmark_time = time;
window->frames = 0;
}
angle = ((time-start_time) / speed_div) % 360 * M_PI / 180.0;
angle = (time / speed_div) % 360 * M_PI / 180.0;
rotation[0][0] = cos(angle);
rotation[0][2] = sin(angle);
rotation[2][0] = -sin(angle);
@@ -483,6 +494,7 @@ redraw(void *data, struct wl_callback *callback, uint32_t time)
} else {
eglSwapBuffers(display->egl.dpy, window->egl_surface);
}
window->frames++;
}
static const struct wl_callback_listener frame_listener = {