Accept FS #8285 - "Flashlight" plugin by Vuong Minh Hiep, Thomas Martitz and Alexander Papst

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17226 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 235 insertions, 2 deletions

diff --git a/apps/plugin.c b/apps/plugin.c
index a7baa6d314..fa59fcf799 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -141,6 +141,7 @@ static const struct plugin_api rockbox_api = {
     backlight_on,
     backlight_off,
     backlight_set_timeout,
+
 #if CONFIG_CHARGING
     backlight_set_timeout_plugged,
 #endif
@@ -577,6 +578,10 @@ static const struct plugin_api rockbox_api = {
     /* new stuff at the end, sort into place next time
        the API gets incompatible */
 
+#ifdef HAVE_BACKLIGHT_BRIGHTNESS
+    backlight_set_brightness,
+#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
+
 };
 
 int plugin_load(const char* plugin, void* parameter)
diff --git a/apps/plugin.h b/apps/plugin.h
index 9e0386f001..9ca14735e5 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -120,7 +120,7 @@
 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 
 /* increase this every time the api struct changes */
-#define PLUGIN_API_VERSION 108
+#define PLUGIN_API_VERSION 109
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any
@@ -232,6 +232,7 @@ struct plugin_api {
     void (*backlight_on)(void);
     void (*backlight_off)(void);
     void (*backlight_set_timeout)(int index);
+
 #if CONFIG_CHARGING
     void (*backlight_set_timeout_plugged)(int index);
 #endif
@@ -723,7 +724,11 @@ struct plugin_api {
 
     /* new stuff at the end, sort into place next time
        the API gets incompatible */
-       
+
+#ifdef HAVE_BACKLIGHT_BRIGHTNESS
+    void (*backlight_set_brightness)(int val);
+#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
+
 };
 
 /* plugin header */
diff --git a/apps/plugins/CATEGORIES b/apps/plugins/CATEGORIES
index 738c031698..607dcbc544 100644
--- a/apps/plugins/CATEGORIES
+++ b/apps/plugins/CATEGORIES
@@ -97,3 +97,4 @@ wavview,viewers
 wormlet,games
 xobox,games
 zxbox,viewers
+flashlight,apps
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index 8e138d72cb..b33b6305f3 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -19,6 +19,9 @@ stats.c
 stopwatch.c
 vbrfix.c
 viewer.c
+#ifdef HAVE_BACKLIGHT
+flashlight.c
+#endif /* HAVE_BACKLIGHT */
 
 #ifdef OLYMPUS_MROBE_500
 /* remove these once the plugins before it are compileable */
diff --git a/apps/plugins/flashlight.c b/apps/plugins/flashlight.c
new file mode 100644
index 0000000000..748848310f
--- /dev/null
+++ b/apps/plugins/flashlight.c
@@ -0,0 +1,219 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _// __ \_/ ___\|  |/ /| __ \ / __ \  \/  /
+ *   Jukebox    |    |   ( (__) )  \___|    ( | \_\ ( (__) )    (
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2007 Vuong Minh Hiep (vmh)
+ * Copyright (C) 2008 Thomas Martitz (kugel.)
+ * Copyright (C) 2008 Alexander Papst
+ *
+ * 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"
+#include "helper.h"
+
+PLUGIN_HEADER
+
+#if defined(HAVE_BACKLIGHT)
+/* variable button definitions - only targets with a colour display */
+#if defined(HAVE_LCD_COLOR)
+#if (CONFIG_KEYPAD == IRIVER_H300_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+
+#elif (CONFIG_KEYPAD == IPOD_4G_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+#   define FLASHLIGHT_NEXT       BUTTON_SCROLL_FWD
+#   define FLASHLIGHT_PREV       BUTTON_SCROLL_BACK
+
+#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+
+#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+
+#elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+
+#elif (CONFIG_KEYPAD == SANSA_E200_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+#   define FLASHLIGHT_NEXT       BUTTON_SCROLL_FWD
+#   define FLASHLIGHT_PREV       BUTTON_SCROLL_BACK
+
+#elif (CONFIG_KEYPAD == SANSA_C200_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+
+#elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
+#   define FLASHLIGHT_LEFT       BUTTON_LEFT
+#   define FLASHLIGHT_RIGHT      BUTTON_RIGHT
+#   define FLASHLIGHT_NEXT       BUTTON_SCROLL_UP
+#   define FLASHLIGHT_PREV       BUTTON_SCROLL_DOWN
+
+#else
+#   error Missing key definitions for this keypad
+#endif
+#endif
+
+static struct plugin_api* rb; /* global api struct pointer */
+
+#ifdef HAVE_LCD_COLOR
+void hsv_to_rgb(float hue, float sat, float v, 
+                float *red, float *green, float *blue)
+{
+    float r, g, b;
+
+    if (hue > 0.17 && hue <= 0.33)    /* green/red */
+    {
+        g = 1.0;
+        r = ((float)0.33 - hue) / (float)0.16;
+        b = 0.0;
+    }
+    else if (hue > 0.33 && hue <= 0.5)    /* green/blue */
+    {
+        g = 1.0;
+        b = (hue - (float)0.33) / (float)0.17;
+        r = 0.0;
+    }
+    else if (hue > 0.5 && hue <= 0.67)    /* blue/green */
+    {
+        b = 1.0;
+        g = ((float)0.67 - hue) / (float)0.17;
+        r = 0.0;
+    }
+    else if (hue > 0.67 && hue <= 0.83)    /* blue/red */
+    {
+        b = 1.0;
+        r = (hue - (float)0.67) / (float)0.16;
+        g = 0.0;
+    } 
+    else if (hue > 0.83 && hue <= 1.0)    /* red/blue */
+    {
+        r = 1.0;
+        b = ((float)1.0 - hue) / (float)0.17;
+        g = 0.0;
+    } 
+    else                /* red/green */
+    {
+        r = 1.0;
+        g = hue / (float)0.17;
+        b = 0.0;
+    }
+
+    *red = (sat * r + ((float)1.0 - sat)) * v;
+    *green = (sat * g + ((float)1.0 - sat)) * v;
+    *blue = (sat * b + ((float)1.0 - sat)) * v;
+}
+#endif
+
+/* this is the plugin entry point */
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    (void)parameter;
+    rb = api;
+
+#ifdef HAVE_LCD_COLOR
+    int h = 0;
+    float var_r, var_g, var_b;
+    bool quit = false;
+#endif /* HAVE_LCD_COLOR */
+
+#ifdef HAVE_BACKLIGHT_BRIGHTNESS
+    short old_brightness = rb->global_settings->brightness;
+#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
+
+#if LCD_DEPTH > 1
+    rb->lcd_set_backdrop(NULL);
+    unsigned bg_color=rb->lcd_get_background();
+    rb->lcd_set_background(LCD_WHITE);
+#endif
+#ifdef HAVE_BACKLIGHT_BRIGHTNESS
+    rb->backlight_set_brightness(MAX_BRIGHTNESS_SETTING);
+#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
+
+    backlight_force_on(rb);
+
+#ifdef HAVE_LCD_COLOR
+    do 
+    {
+        if (h != 0)
+        {
+            hsv_to_rgb( ((float)(h - 5) / 360.0), 1, 1, &var_r, &var_g, &var_b);
+            rb->lcd_set_background( LCD_RGBPACK( ((int)(var_r * 255)),
+                                                 ((int)(var_g * 255)),
+                                                 ((int)(var_b * 255)) ) );
+        }
+        else
+        { /* Whilte screen */
+            rb->lcd_set_background(LCD_WHITE);
+        }
+        rb->lcd_clear_display();
+        rb->lcd_update();
+
+        switch(rb->button_get(true))
+        {
+            case FLASHLIGHT_RIGHT:
+            case (FLASHLIGHT_RIGHT|BUTTON_REPEAT):
+            case (FLASHLIGHT_RIGHT|BUTTON_REL):
+#ifdef FLASHLIGHT_NEXT
+            case FLASHLIGHT_NEXT:
+            case (FLASHLIGHT_NEXT|BUTTON_REPEAT):
+            case (FLASHLIGHT_NEXT|BUTTON_REL):
+#endif /* FLASHLIGHT_NEXT */
+                h = (h + 5) % 365;
+                break;
+            case FLASHLIGHT_LEFT:
+            case (FLASHLIGHT_LEFT|BUTTON_REPEAT):
+            case (FLASHLIGHT_LEFT|BUTTON_REL):
+#ifdef FLASHLIGHT_PREV
+            case FLASHLIGHT_PREV:
+            case (FLASHLIGHT_PREV|BUTTON_REPEAT):
+            case (FLASHLIGHT_PREV|BUTTON_REL):
+#endif /* FLASHLIGHT_PREV */
+                h = (h + 360) % 365;
+                break;
+
+            default:
+                quit = true;
+        }
+    } while (!quit);
+
+#else /* HAVE_LCD_COLOR */
+    rb->lcd_clear_display();
+    rb->lcd_update();
+    /* wait */
+    while(rb->button_get(false) == BUTTON_NONE)
+    {
+        rb->yield();
+    }
+
+#endif /*HAVE_LCD_COLOR */
+
+    /* restore */
+    backlight_use_settings(rb);
+
+#ifdef HAVE_BACKLIGHT_BRIGHTNESS
+    rb->backlight_set_brightness(old_brightness);
+#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
+
+#if LCD_DEPTH > 1
+    rb->lcd_set_background(bg_color);
+#endif
+    return PLUGIN_OK;
+}
+#endif