2 files changed, 243 insertions, 0 deletions

diff --git a/apps/plugins/CATEGORIES b/apps/plugins/CATEGORIES
index 2fd08ca01e..738c031698 100644
--- a/apps/plugins/CATEGORIES
+++ b/apps/plugins/CATEGORIES
@@ -81,6 +81,7 @@ stopwatch,apps
 test_codec,viewers
 test_disk,apps
 test_fps,apps
+test_grey,apps
 test_sampr,apps
 test_scanrate,apps
 test_viewports,apps
diff --git a/apps/plugins/test_grey.c b/apps/plugins/test_grey.c
new file mode 100644
index 0000000000..a413854332
--- /dev/null
+++ b/apps/plugins/test_grey.c
@@ -0,0 +1,242 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 Jens Arnold
+ *
+ * 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 "grey.h"
+#include "helper.h"
+
+PLUGIN_HEADER
+
+#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) \
+ || (CONFIG_KEYPAD == IPOD_1G2G_PAD)
+#define GREY_QUIT BUTTON_MENU
+#define GREY_OK   BUTTON_SELECT
+#define GREY_PREV BUTTON_LEFT
+#define GREY_NEXT BUTTON_RIGHT
+#define GREY_UP   BUTTON_SCROLL_FWD
+#define GREY_DOWN BUTTON_SCROLL_BACK
+
+#elif CONFIG_KEYPAD == IRIVER_H100_PAD
+#define GREY_QUIT BUTTON_OFF
+#define GREY_OK   BUTTON_SELECT
+#define GREY_PREV BUTTON_LEFT
+#define GREY_NEXT BUTTON_RIGHT
+#define GREY_UP   BUTTON_UP
+#define GREY_DOWN BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == RECORDER_PAD
+#define GREY_QUIT BUTTON_OFF
+#define GREY_OK   BUTTON_PLAY
+#define GREY_PREV BUTTON_LEFT
+#define GREY_NEXT BUTTON_RIGHT
+#define GREY_UP   BUTTON_UP
+#define GREY_DOWN BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == ONDIO_PAD
+#define GREY_QUIT BUTTON_OFF
+#define GREY_OK   BUTTON_MENU
+#define GREY_PREV BUTTON_LEFT
+#define GREY_NEXT BUTTON_RIGHT
+#define GREY_UP   BUTTON_UP
+#define GREY_DOWN BUTTON_DOWN
+
+#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD) \
+   || (CONFIG_KEYPAD == MROBE100_PAD)
+#define GREY_QUIT BUTTON_POWER
+#define GREY_OK   BUTTON_SELECT
+#define GREY_PREV BUTTON_LEFT
+#define GREY_NEXT BUTTON_RIGHT
+#define GREY_UP   BUTTON_UP
+#define GREY_DOWN BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
+#define GREY_QUIT BUTTON_RC_REC
+#define GREY_OK   BUTTON_RC_PLAY
+#define GREY_PREV BUTTON_RC_REW
+#define GREY_NEXT BUTTON_RC_FF
+#define GREY_UP   BUTTON_RC_VOL_UP
+#define GREY_DOWN BUTTON_RC_VOL_DOWN
+
+#else
+#error unsupported keypad
+#endif
+
+#define BLOCK_WIDTH  (LCD_WIDTH/8)
+#define BLOCK_HEIGHT (LCD_HEIGHT/8)
+
+#define STEPS 16
+
+GREY_INFO_STRUCT
+
+static const unsigned char dither_matrix[16][16] = {
+    {   0,192, 48,240, 12,204, 60,252,  3,195, 51,243, 15,207, 63,255 },
+    { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
+    {  32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
+    { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
+    {   8,200, 56,248,  4,196, 52,244, 11,203, 59,251,  7,199, 55,247 },
+    { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
+    {  40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
+    { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
+    {   2,194, 50,242, 14,206, 62,254,  1,193, 49,241, 13,205, 61,253 },
+    { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
+    {  34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
+    { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
+    {  10,202, 58,250,  6,198, 54,246,  9,201, 57,249,  5,197, 53,245 },
+    { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
+    {  42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
+    { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
+};
+
+static unsigned char input_levels[STEPS+1];
+static unsigned char lcd_levels[STEPS+1];
+
+static struct plugin_api* rb;
+static unsigned char *gbuf;
+static size_t gbuf_size = 0;
+
+static void fill_rastered(int bx, int by, int bw, int bh, int step)
+{
+    int x, xmax, y, ymax;
+    int level;
+    
+    if (step < 0)
+        step = 0;
+    else if (step > STEPS)
+        step = STEPS;
+        
+    level = input_levels[step];
+    level += (level-1) >> 7;
+
+    for (y = (LCD_HEIGHT/2) + by * BLOCK_HEIGHT, ymax = y + bh * BLOCK_HEIGHT;
+         y < ymax; y++)
+    {
+        for (x = (LCD_WIDTH/2) + bx * BLOCK_WIDTH, xmax = x + bw * BLOCK_WIDTH;
+             x < xmax; x++)
+        {
+            grey_set_foreground((level > dither_matrix[y & 0xf][x & 0xf])
+                                ? 255 : 0);
+            grey_drawpixel(x, y);
+        }
+    }
+}
+
+/* plugin entry point */
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    bool done = false;
+    int cur_step = 1;
+    int button, i, l, fd;
+    unsigned char filename[MAX_PATH];
+
+    /* standard stuff */
+    (void)parameter;
+    rb = api;
+    
+    gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
+
+    if (!grey_init(rb, gbuf, gbuf_size,
+                   GREY_BUFFERED|GREY_RAWMAPPED|GREY_ON_COP,
+                   LCD_WIDTH, LCD_HEIGHT, NULL))
+    {
+        rb->splash(HZ, "Not enough memory.");
+        return PLUGIN_ERROR;
+    }
+    for (i = 0; i <= STEPS; i++)
+        input_levels[i] = lcd_levels[i] = (255 * i + (STEPS/2)) / STEPS;
+
+    backlight_force_on(rb); /* backlight control in lib/helper.c */
+
+    grey_set_background(0); /* set background to black */
+    grey_clear_display();
+    grey_show(true);
+
+    while (!done)
+    {
+        fill_rastered(-3, -3, 2, 2, cur_step - 1);
+        fill_rastered(-1, -3, 2, 2, cur_step);
+        fill_rastered(1, -3, 2, 2, cur_step + 1);
+        fill_rastered(-3, -1, 2, 2, cur_step);
+        grey_set_foreground(lcd_levels[cur_step]);
+        grey_fillrect(LCD_WIDTH/2-BLOCK_WIDTH, LCD_HEIGHT/2-BLOCK_HEIGHT,
+                      2*BLOCK_WIDTH, 2*BLOCK_HEIGHT);
+        fill_rastered(1, -1, 2, 2, cur_step);
+        fill_rastered(-3, 1, 2, 2, cur_step + 1);
+        fill_rastered(-1, 1, 2, 2, cur_step);
+        fill_rastered(1, 1, 2, 2, cur_step - 1);
+        grey_update();
+
+        button = rb->button_get(true);
+        switch (button)
+        {
+            case GREY_PREV:
+                if (cur_step > 0)
+                    cur_step--;
+                break;
+
+            case GREY_NEXT:
+                if (cur_step < STEPS)
+                    cur_step++;
+                break;
+
+            case GREY_UP:
+            case GREY_UP|BUTTON_REPEAT:
+                l = lcd_levels[cur_step];
+                if (l < 255)
+                {
+                    l++;
+                    for (i = cur_step; i <= STEPS; i++)
+                        if (lcd_levels[i] < l)
+                            lcd_levels[i] = l;
+                }
+                break;
+
+            case GREY_DOWN:
+            case GREY_DOWN|BUTTON_REPEAT:
+                l = lcd_levels[cur_step];
+                if (l > 0)
+                {
+                    l--;
+                    for (i = cur_step; i >= 0; i--)
+                        if (lcd_levels[i] > l)
+                            lcd_levels[i] = l;
+                }
+                break;
+                
+            case GREY_OK:
+                rb->create_numbered_filename(filename, "/", "test_grey_",
+                                             ".txt", 2 IF_CNFN_NUM_(, NULL));
+                fd = rb->open(filename, O_RDWR|O_CREAT|O_TRUNC);
+                if (fd >= 0)
+                {
+                    for (i = 0; i <= STEPS; i++)
+                         rb->fdprintf(fd, "%3d: %3d\n", input_levels[i],
+                                      lcd_levels[i]);
+                    rb->close(fd);
+                }
+                /* fall through */
+
+            case GREY_QUIT:
+                done = true;
+                break;
+        }
+    }
+
+    grey_release();
+    backlight_use_settings(rb); /* backlight control in lib/helper.c */
+    return PLUGIN_OK;
+}