From 151748e86eb2a24f08f200eb49cdc8739c7be9c4 Mon Sep 17 00:00:00 2001
From: Jens Arnold <amiconn@rockbox.org>
Date: Sat, 8 Apr 2006 10:27:34 +0000
Subject: Test plugin for measuring LCD update speed, for developers.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9562 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/test_fps.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100755 apps/plugins/test_fps.c

(limited to 'apps/plugins')

diff --git a/apps/plugins/test_fps.c b/apps/plugins/test_fps.c
new file mode 100755
index 0000000000..24dbcf8b2a
--- /dev/null
+++ b/apps/plugins/test_fps.c
@@ -0,0 +1,85 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Peter D'Hoye
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+
+#ifdef HAVE_LCD_BITMAP
+
+#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD)
+#define FPS_QUIT BUTTON_MENU
+#else
+#define FPS_QUIT BUTTON_OFF
+#endif
+
+PLUGIN_HEADER
+
+static struct plugin_api* rb;
+
+/* plugin entry point */
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    char str[64];                   /* text buffer */
+    int time_start = 0;             /* start tickcount */
+    int frame_count = 0;            /* frame counter */
+    int part14_x = LCD_WIDTH/4;     /* x-offset for 1/4 update test */
+    int part14_w = LCD_WIDTH/2;     /* x-size for 1/4 update test */
+    int part14_y = LCD_HEIGHT/4;    /* y-offset for 1/4 update test */
+    int part14_h = LCD_HEIGHT/2;    /* y-size for 1/4 update test */
+
+    /* standard stuff */
+    (void)parameter;
+    rb = api;
+
+    rb->lcd_clear_display();
+    rb->lcd_puts(0, 0, "FPS Measurements:");
+    rb->lcd_update();
+
+    /* TEST 1: FULL LCD UPDATE */
+    frame_count = 0;
+    time_start = *rb->current_tick;
+    while(*rb->current_tick - time_start < 2*HZ)
+    {
+        rb->lcd_update();
+        frame_count++;
+    }
+
+    rb->snprintf(str, sizeof(str), "1:1 = %d.%d (cpu = %d)", frame_count/2,
+        (frame_count%2)*5, *rb->cpu_frequency );
+    rb->lcd_puts(0, 1, str);
+    rb->lcd_update();
+
+    /* TEST 2: QUARTER LCD UPDATE */
+    frame_count = 0;
+    time_start = *rb->current_tick;
+    while(*rb->current_tick - time_start < 2*HZ)
+    {
+        rb->lcd_update_rect(part14_x, part14_y, part14_w, part14_h);
+        frame_count++;
+    }
+
+    rb->snprintf(str, sizeof(str), "1:4 = %d.%d (cpu = %d)", frame_count/2,
+        (frame_count%2)*5, *rb->cpu_frequency );
+    rb->lcd_puts(0, 2, str);
+    rb->lcd_update();
+
+    /* wait until user closes plugin */
+    while (rb->button_get(true) != FPS_QUIT);
+
+    return PLUGIN_OK;
+}
+#endif
-- 
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