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-rw-r--r--test/perf-overhead.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/test/perf-overhead.c b/test/perf-overhead.c
deleted file mode 100644
index 20ca6c3..0000000
--- a/test/perf-overhead.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Copyright (C) 2011, 2012 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
- (Karlsruhe Institute of Technology)
-
- This library is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by the
- Free Software Foundation; either version 2.1 of the License, or (at your
- option) any later version.
-
- This library is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
- details.
-
- You should have received a copy of the GNU Lesser General Public License along
- with this library; if not, write to the Free Software Foundation, Inc., 51
- Franklin St, Fifth Floor, Boston, MA 02110, USA */
-
-#include <glib-object.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "uca-camera.h"
-
-#define handle_error(errno) {if ((errno) != UCA_NO_ERROR) printf("error at <%s:%i>\n", \
- __FILE__, __LINE__);}
-
-typedef struct {
- guint counter;
- gsize size;
- gpointer destination;
-} thread_data;
-
-static UcaCamera *camera = NULL;
-
-static void sigint_handler(int signal)
-{
- printf("Closing down libuca\n");
- uca_camera_stop_recording(camera, NULL);
- g_object_unref(camera);
- exit(signal);
-}
-
-static void test_synchronous_operation(UcaCamera *camera)
-{
- GError *error = NULL;
- guint width, height, bits;
- g_object_get(G_OBJECT(camera),
- "sensor-width", &width,
- "sensor-height", &height,
- "sensor-bitdepth", &bits,
- NULL);
-
- const int pixel_size = bits == 8 ? 1 : 2;
- const gsize size = width * height * pixel_size;
- const guint n_trials = 10000;
- gpointer buffer = g_malloc0(size);
-
- uca_camera_start_recording(camera, &error);
- GTimer *timer = g_timer_new();
-
- for (guint n = 0; n < n_trials; n++)
- uca_camera_grab(camera, &buffer, &error);
-
- gdouble total_time = g_timer_elapsed(timer, NULL);
- g_timer_stop(timer);
-
- g_print("Synchronous data transfer\n");
- g_print(" Bandwidth: %3.2f MB/s\n", size * n_trials / 1024. / 1024. / total_time);
- g_print(" Throughput: %3.2f frames/s\n", n_trials / total_time);
-
- uca_camera_stop_recording(camera, &error);
- g_free(buffer);
- g_timer_destroy(timer);
-}
-
-static void grab_func(gpointer data, gpointer user_data)
-{
- static GStaticMutex mutex = G_STATIC_MUTEX_INIT;
-
- thread_data *d = (thread_data *) user_data;
- g_memmove(d->destination, data, d->size);
- g_static_mutex_lock(&mutex);
- d->counter++;
- g_static_mutex_unlock(&mutex);
-}
-
-static void test_asynchronous_operation(UcaCamera *camera)
-{
- GError *error = NULL;
- guint width, height, bits;
-
- g_object_get(G_OBJECT(camera),
- "sensor-width", &width,
- "sensor-height", &height,
- "sensor-bitdepth", &bits,
- NULL);
-
- const guint pixel_size = bits == 8 ? 1 : 2;
-
- thread_data d = {
- .counter = 0,
- .size = width * height * pixel_size,
- .destination = g_malloc0(width * height * pixel_size)
- };
-
- g_object_set(G_OBJECT(camera),
- "transfer-asynchronously", TRUE,
- NULL);
-
- uca_camera_set_grab_func(camera, &grab_func, &d);
- uca_camera_start_recording(camera, &error);
- g_usleep(G_USEC_PER_SEC);
- uca_camera_stop_recording(camera, &error);
-
- g_print("Asynchronous data transfer\n");
- g_print(" Bandwidth: %3.2f MB/s\n", d.size * d.counter / 1024. / 1024.);
- g_print(" Throughput: %i frames/s\n", d.counter);
-
- g_free(d.destination);
-}
-
-int main(int argc, char *argv[])
-{
- GError *error = NULL;
- (void) signal(SIGINT, sigint_handler);
-
- g_type_init();
- camera = uca_camera_new("mock", &error);
-
- if (camera == NULL) {
- g_print("Couldn't initialize camera\n");
- return 1;
- }
-
- test_synchronous_operation(camera);
- g_print("\n");
- test_asynchronous_operation(camera);
-
- g_object_unref(camera);
-
- return error != NULL ? 1 : 0;
-}