apps/plugins/greyscale.c

   1 /***************************************************************************
   2 *             __________               __   ___.
   3 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 *                     \/            \/     \/    \/            \/
   8 * $Id$
   9 *
  10 * Greyscale demo plugin
  11 *
  12 * Copyright (C) 2004-2008 Jens Arnold
  13 *
  14 * All files in this archive are subject to the GNU General Public License.
  15 * See the file COPYING in the source tree root for full license agreement.
  16 *
  17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18 * KIND, either express or implied.
  19 *
  20 ****************************************************************************/
  21
  22 #include "plugin.h"
  23 #include "helper.h"
  24
  25 #if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH < 4)
  26 #include "grey.h"
  27
  28 PLUGIN_HEADER
  29
  30 /* variable button definitions */
  31 #if CONFIG_KEYPAD == RECORDER_PAD
  32 #define GREYSCALE_SHIFT BUTTON_ON
  33 #define GREYSCALE_UP BUTTON_UP
  34 #define GREYSCALE_DOWN BUTTON_DOWN
  35 #define GREYSCALE_LEFT BUTTON_LEFT
  36 #define GREYSCALE_RIGHT BUTTON_RIGHT
  37 #define GREYSCALE_OFF BUTTON_OFF
  38
  39 #elif CONFIG_KEYPAD == ONDIO_PAD
  40 #define GREYSCALE_SHIFT BUTTON_MENU
  41 #define GREYSCALE_UP BUTTON_UP
  42 #define GREYSCALE_DOWN BUTTON_DOWN
  43 #define GREYSCALE_LEFT BUTTON_LEFT
  44 #define GREYSCALE_RIGHT BUTTON_RIGHT
  45 #define GREYSCALE_OFF BUTTON_OFF
  46
  47 #elif CONFIG_KEYPAD == IRIVER_H100_PAD
  48 #define GREYSCALE_SHIFT BUTTON_ON
  49 #define GREYSCALE_UP BUTTON_UP
  50 #define GREYSCALE_DOWN BUTTON_DOWN
  51 #define GREYSCALE_LEFT BUTTON_LEFT
  52 #define GREYSCALE_RIGHT BUTTON_RIGHT
  53 #define GREYSCALE_OFF BUTTON_OFF
  54
  55 #define GREYSCALE_RC_OFF BUTTON_RC_STOP
  56
  57 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
  58 #define GREYSCALE_SHIFT BUTTON_PLAY /* won't work, but define it anyway */
  59 #define GREYSCALE_UP BUTTON_UP
  60 #define GREYSCALE_DOWN BUTTON_DOWN
  61 #define GREYSCALE_LEFT BUTTON_LEFT
  62 #define GREYSCALE_RIGHT BUTTON_RIGHT
  63 #define GREYSCALE_OFF BUTTON_POWER
  64
  65 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  66       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  67 #define GREYSCALE_SHIFT BUTTON_SELECT
  68 #define GREYSCALE_UP BUTTON_SCROLL_BACK
  69 #define GREYSCALE_DOWN BUTTON_SCROLL_FWD
  70 #define GREYSCALE_LEFT BUTTON_LEFT
  71 #define GREYSCALE_RIGHT BUTTON_RIGHT
  72 #define GREYSCALE_OFF BUTTON_MENU
  73
  74 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
  75 #define GREYSCALE_SHIFT BUTTON_PLAY
  76 #define GREYSCALE_UP BUTTON_UP
  77 #define GREYSCALE_DOWN BUTTON_DOWN
  78 #define GREYSCALE_LEFT BUTTON_LEFT
  79 #define GREYSCALE_RIGHT BUTTON_RIGHT
  80 #define GREYSCALE_OFF BUTTON_EQ
  81
  82 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
  83 #define GREYSCALE_SHIFT BUTTON_RC_PLAY /* somewhat dangerous... */
  84 #define GREYSCALE_UP BUTTON_RC_VOL_UP
  85 #define GREYSCALE_DOWN BUTTON_RC_VOL_DOWN
  86 #define GREYSCALE_LEFT BUTTON_RC_REW
  87 #define GREYSCALE_RIGHT BUTTON_RC_FF
  88 #define GREYSCALE_OFF BUTTON_RC_REC
  89
  90 #define GREYSCALE_RC_OFF BUTTON_REC
  91
  92 #endif
  93
  94 #define GFX_HEIGHT (LCD_HEIGHT-8)
  95 #if LCD_WIDTH < 160
  96 #define GFX_GREYTONE_WIDTH 86
  97 #define GFX_GREYTONE_STEP 3
  98 #else
  99 #define GFX_GREYTONE_WIDTH 128
 100 #define GFX_GREYTONE_STEP 2
 101 #endif
 102 /******************************* Globals ***********************************/
 103
 104 GREY_INFO_STRUCT
 105 static struct plugin_api* rb; /* global api struct pointer */
 106 static char pbuf[32];         /* global printf buffer */
 107 static unsigned char *gbuf;
 108 static size_t gbuf_size = 0;
 109
 110 /**************************** main function ********************************/
 111
 112 void cleanup(void *parameter)
 113 {
 114     (void)parameter;
 115
 116     grey_release(); /* switch off overlay and deinitialize */
 117     /* Turn on backlight timeout (revert to settings) */
 118     backlight_use_settings(rb); /* backlight control in lib/helper.c */
 119 }
 120
 121 /* this is only a demo of what the framework can do */
 122 int main(void)
 123 {
 124     int time;
 125     int x, y, i;
 126     int button, scroll_amount;
 127     bool black_border = false;
 128
 129     static const unsigned char rockbox[] = {
 130     /* ...........................................
 131      * .####...###...###..#...#.####...###..#...#.
 132      * .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
 133      * .####..#...#.#.....###...####..#...#...#...
 134      * .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
 135      * .#...#..###...###..#...#.####...###..#...#.
 136      * ...........................................
 137      * 43 x 7 pixel, 1 bpp
 138      */
 139        0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
 140        0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
 141        0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
 142        0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
 143        0x14, 0x22, 0x00
 144     };
 145
 146     static const unsigned char showing[] = {
 147     /* .......................................
 148      * ..####.#...#..###..#...#.#.#...#..####.
 149      * .#.....#...#.#...#.#...#.#.##..#.#.....
 150      * ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
 151      * .....#.#...#.#...#.#.#.#.#.#..##.#...#.
 152      * .####..#...#..###...#.#..#.#...#..####.
 153      * .......................................
 154      * 39 x 7 pixel, 1 bpp
 155      */
 156        0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
 157        0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
 158        0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
 159        0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
 160     };
 161
 162     static const unsigned char grayscale_grey[] = {
 163     /* .......................................................
 164      * ..####.####...###..#...#..####..###...###..#.....#####.
 165      * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
 166      * .#..##.####..#####..#.#...###..#.....#####.#.....####..
 167      * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
 168      * ..####.#...#.#...#...#...####...###..#...#.#####.#####.
 169      * .......................................................
 170      * 55 x 7 pixel, 8 bpp
 171      */
 172        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 173        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 174        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 175        110,110,110,110,110,110,110,
 176        120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
 177         24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
 178        230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
 179        120, 36, 36, 36, 36, 36,120,
 180        130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
 181        130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
 182        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 183        130, 36,130,130,130,130,130,
 184        140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
 185         24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
 186        140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
 187        140, 36, 36, 36, 36,140,140,
 188        130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
 189        130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
 190        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 191        130, 36,130,130,130,130,130,
 192        120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
 193        120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
 194        230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
 195        120, 36, 36, 36, 36, 36,120,
 196        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 197        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 198        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 199        110,110,110,110,110,110,110
 200     };
 201
 202     /* Turn off backlight timeout */
 203     backlight_force_on(rb); /* backlight control in lib/helper.c */
 204
 205     rb->lcd_setfont(FONT_SYSFIXED);   /* select default font */
 206
 207     /* get the remainder of the plugin buffer */
 208     gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
 209
 210     /* initialize the greyscale buffer:
 211        Archos: 112 pixels wide, 7 rows (56 pixels) high.
 212        H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
 213     if (!grey_init(rb, gbuf, gbuf_size, GREY_BUFFERED,
 214                    LCD_WIDTH, GFX_HEIGHT, NULL))
 215     {
 216         rb->splash(HZ, "Not enough memory.");
 217         return PLUGIN_ERROR;
 218     }
 219
 220     /* place greyscale overlay 1 row down */
 221     grey_set_position(0, 8);
 222
 223     rb->lcd_puts(0, 0, "Shades: 129");
 224     rb->lcd_update();
 225
 226 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 227     rb->cpu_boost(true);
 228 #endif
 229     grey_show(true);          /* switch on greyscale overlay */
 230
 231     time = *rb->current_tick; /* start time measurement */
 232
 233     grey_set_background(150);
 234     grey_clear_display();     /* fill everything with grey 150 */
 235
 236     /* draw a dark grey line star background */
 237     grey_set_foreground(80);
 238     for (y = 0; y < GFX_HEIGHT; y += 8)                   /* horizontal part */
 239     {
 240         grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
 241     }
 242     for (x = 10; x <= LCD_WIDTH; x += 10)                    /* vertical part */
 243     {
 244         grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
 245     }
 246
 247     grey_set_foreground(0);
 248     grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT);   /* black border */
 249
 250     /* draw grey tones */
 251     for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
 252     {
 253         x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
 254         grey_set_foreground(GFX_GREYTONE_STEP * i);
 255         /* vertical lines */
 256         grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
 257     }
 258
 259     grey_set_drawmode(DRMODE_COMPLEMENT);
 260     /* invert rectangle (lower half) */
 261     grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
 262                   GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
 263     /* invert a line */
 264     grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
 265                (LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
 266
 267     /* show bitmaps (1 bit and 8 bit) */
 268     /* opaque */
 269     grey_set_drawinfo(DRMODE_SOLID, 255, 100);
 270     grey_mono_bitmap(rockbox,
 271                      MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
 272                      (5*GFX_HEIGHT/16-4), 43, 7);
 273     /* transparent */
 274     grey_set_drawinfo(DRMODE_FG, 0, 100);
 275     grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
 276     /* greyscale */
 277     grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
 278                      55, 7);
 279
 280     grey_update();
 281
 282     time = *rb->current_tick - time;  /* end time measurement */
 283
 284     rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds",
 285                  time / 100, time % 100);
 286     rb->lcd_puts(0, 0, pbuf);
 287     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 288 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 289     rb->cpu_boost(false);
 290 #endif
 291
 292     /* drawing is now finished, play around with scrolling
 293      * until you press OFF or connect USB
 294      */
 295     grey_set_background(255);
 296     while (true)
 297     {
 298         scroll_amount = 1;
 299
 300         button = rb->button_get(true);
 301
 302         if (rb->default_event_handler_ex(button, cleanup, NULL)
 303             == SYS_USB_CONNECTED)
 304             return PLUGIN_USB_CONNECTED;
 305
 306         if (button & GREYSCALE_SHIFT)
 307         {
 308             if (!black_border)
 309             {
 310                 grey_set_background(0);
 311                 black_border = true;
 312             }
 313         }
 314         else
 315         {
 316             if (black_border)
 317             {
 318                 grey_set_background(255);
 319                 black_border = false;
 320             }
 321         }
 322
 323         if (button & BUTTON_REPEAT)
 324             scroll_amount = 4;
 325
 326         switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
 327         {
 328             case GREYSCALE_LEFT:
 329
 330                 grey_scroll_left(scroll_amount);  /* scroll left */
 331                 grey_update();
 332                 break;
 333
 334             case GREYSCALE_RIGHT:
 335
 336                 grey_scroll_right(scroll_amount); /* scroll right */
 337                 grey_update();
 338                 break;
 339
 340             case GREYSCALE_UP:
 341
 342                 grey_scroll_up(scroll_amount);    /* scroll up */
 343                 grey_update();
 344                 break;
 345
 346             case GREYSCALE_DOWN:
 347
 348                 grey_scroll_down(scroll_amount);  /* scroll down */
 349                 grey_update();
 350                 break;
 351 #ifdef GREYSCALE_RC_OFF
 352             case GREYSCALE_RC_OFF:
 353 #endif
 354             case GREYSCALE_OFF:
 355
 356                 cleanup(NULL);
 357                 return PLUGIN_OK;
 358         }
 359     }
 360 }
 361
 362 /*************************** Plugin entry point ****************************/
 363
 364 enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 365 {
 366     rb = api; /* copy to global api pointer */
 367     (void)parameter;
 368
 369     return main();
 370 }
 371
 372 #endif /* #ifdef HAVE_LCD_BITMAP */
 373