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 * This program is free software; you can redistribute it and/or
  15 * modify it under the terms of the GNU General Public License
  16 * as published by the Free Software Foundation; either version 2
  17 * of the License, or (at your option) any later version.
  18 *
  19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20 * KIND, either express or implied.
  21 *
  22 ****************************************************************************/
  23
  24 #include "plugin.h"
  25 #include "lib/helper.h"
  26
  27 #if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH < 4)
  28 #include "lib/grey.h"
  29
  30 PLUGIN_HEADER
  31
  32 /* variable button definitions */
  33 #if CONFIG_KEYPAD == RECORDER_PAD
  34 #define GREYSCALE_SHIFT BUTTON_ON
  35 #define GREYSCALE_UP BUTTON_UP
  36 #define GREYSCALE_DOWN BUTTON_DOWN
  37 #define GREYSCALE_LEFT BUTTON_LEFT
  38 #define GREYSCALE_RIGHT BUTTON_RIGHT
  39 #define GREYSCALE_OFF BUTTON_OFF
  40
  41 #elif CONFIG_KEYPAD == ONDIO_PAD
  42 #define GREYSCALE_SHIFT BUTTON_MENU
  43 #define GREYSCALE_UP BUTTON_UP
  44 #define GREYSCALE_DOWN BUTTON_DOWN
  45 #define GREYSCALE_LEFT BUTTON_LEFT
  46 #define GREYSCALE_RIGHT BUTTON_RIGHT
  47 #define GREYSCALE_OFF BUTTON_OFF
  48
  49 #elif CONFIG_KEYPAD == IRIVER_H100_PAD
  50 #define GREYSCALE_SHIFT BUTTON_ON
  51 #define GREYSCALE_UP BUTTON_UP
  52 #define GREYSCALE_DOWN BUTTON_DOWN
  53 #define GREYSCALE_LEFT BUTTON_LEFT
  54 #define GREYSCALE_RIGHT BUTTON_RIGHT
  55 #define GREYSCALE_OFF BUTTON_OFF
  56
  57 #define GREYSCALE_RC_OFF BUTTON_RC_STOP
  58
  59 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD) || (CONFIG_KEYPAD == MROBE100_PAD)
  60 #define GREYSCALE_SHIFT BUTTON_PLAY /* won't work, but define it anyway */
  61 #define GREYSCALE_UP BUTTON_UP
  62 #define GREYSCALE_DOWN BUTTON_DOWN
  63 #define GREYSCALE_LEFT BUTTON_LEFT
  64 #define GREYSCALE_RIGHT BUTTON_RIGHT
  65 #define GREYSCALE_OFF BUTTON_POWER
  66
  67 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  68       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  69 #define GREYSCALE_SHIFT BUTTON_SELECT
  70 #define GREYSCALE_UP BUTTON_SCROLL_BACK
  71 #define GREYSCALE_DOWN BUTTON_SCROLL_FWD
  72 #define GREYSCALE_LEFT BUTTON_LEFT
  73 #define GREYSCALE_RIGHT BUTTON_RIGHT
  74 #define GREYSCALE_OFF BUTTON_MENU
  75
  76 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
  77 #define GREYSCALE_SHIFT BUTTON_PLAY
  78 #define GREYSCALE_UP BUTTON_UP
  79 #define GREYSCALE_DOWN BUTTON_DOWN
  80 #define GREYSCALE_LEFT BUTTON_LEFT
  81 #define GREYSCALE_RIGHT BUTTON_RIGHT
  82 #define GREYSCALE_OFF BUTTON_EQ
  83
  84 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
  85 #define GREYSCALE_SHIFT BUTTON_RC_PLAY /* somewhat dangerous... */
  86 #define GREYSCALE_UP BUTTON_RC_VOL_UP
  87 #define GREYSCALE_DOWN BUTTON_RC_VOL_DOWN
  88 #define GREYSCALE_LEFT BUTTON_RC_REW
  89 #define GREYSCALE_RIGHT BUTTON_RC_FF
  90 #define GREYSCALE_OFF BUTTON_RC_REC
  91
  92 #define GREYSCALE_RC_OFF BUTTON_REC
  93
  94 #elif CONFIG_KEYPAD == SANSA_CLIP_PAD
  95 #define GREYSCALE_SHIFT BUTTON_SELECT
  96 #define GREYSCALE_UP BUTTON_UP
  97 #define GREYSCALE_DOWN BUTTON_DOWN
  98 #define GREYSCALE_LEFT BUTTON_LEFT
  99 #define GREYSCALE_RIGHT BUTTON_RIGHT
 100 #define GREYSCALE_OFF BUTTON_POWER
 101
 102 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 103 #define GREYSCALE_SHIFT BUTTON_FFWD
 104 #define GREYSCALE_UP    BUTTON_UP
 105 #define GREYSCALE_DOWN  BUTTON_DOWN
 106 #define GREYSCALE_LEFT  BUTTON_LEFT
 107 #define GREYSCALE_RIGHT BUTTON_RIGHT
 108 #define GREYSCALE_OFF   BUTTON_PLAY
 109
 110 #endif
 111
 112 #define GFX_HEIGHT (LCD_HEIGHT-8)
 113 #if LCD_WIDTH < 160
 114 #define GFX_GREYTONE_WIDTH 86
 115 #define GFX_GREYTONE_STEP 3
 116 #else
 117 #define GFX_GREYTONE_WIDTH 128
 118 #define GFX_GREYTONE_STEP 2
 119 #endif
 120 /******************************* Globals ***********************************/
 121
 122 GREY_INFO_STRUCT
 123 static char pbuf[32];         /* global printf buffer */
 124 static unsigned char *gbuf;
 125 static size_t gbuf_size = 0;
 126
 127 /**************************** main function ********************************/
 128
 129 void cleanup(void *parameter)
 130 {
 131     (void)parameter;
 132
 133     grey_release(); /* switch off overlay and deinitialize */
 134     /* Turn on backlight timeout (revert to settings) */
 135     backlight_use_settings(); /* backlight control in lib/helper.c */
 136 }
 137
 138 /* this is only a demo of what the framework can do */
 139 int main(void)
 140 {
 141     int time;
 142     int x, y, i;
 143     int button, scroll_amount;
 144     bool black_border = false;
 145
 146     static const unsigned char rockbox[] = {
 147     /* ...........................................
 148      * .####...###...###..#...#.####...###..#...#.
 149      * .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
 150      * .####..#...#.#.....###...####..#...#...#...
 151      * .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
 152      * .#...#..###...###..#...#.####...###..#...#.
 153      * ...........................................
 154      * 43 x 7 pixel, 1 bpp
 155      */
 156        0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
 157        0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
 158        0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
 159        0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
 160        0x14, 0x22, 0x00
 161     };
 162
 163     static const unsigned char showing[] = {
 164     /* .......................................
 165      * ..####.#...#..###..#...#.#.#...#..####.
 166      * .#.....#...#.#...#.#...#.#.##..#.#.....
 167      * ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
 168      * .....#.#...#.#...#.#.#.#.#.#..##.#...#.
 169      * .####..#...#..###...#.#..#.#...#..####.
 170      * .......................................
 171      * 39 x 7 pixel, 1 bpp
 172      */
 173        0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
 174        0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
 175        0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
 176        0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
 177     };
 178
 179     static const unsigned char grayscale_grey[] = {
 180     /* .......................................................
 181      * ..####.####...###..#...#..####..###...###..#.....#####.
 182      * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
 183      * .#..##.####..#####..#.#...###..#.....#####.#.....####..
 184      * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
 185      * ..####.#...#.#...#...#...####...###..#...#.#####.#####.
 186      * .......................................................
 187      * 55 x 7 pixel, 8 bpp
 188      */
 189        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 190        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 191        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 192        110,110,110,110,110,110,110,
 193        120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
 194         24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
 195        230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
 196        120, 36, 36, 36, 36, 36,120,
 197        130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
 198        130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
 199        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 200        130, 36,130,130,130,130,130,
 201        140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
 202         24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
 203        140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
 204        140, 36, 36, 36, 36,140,140,
 205        130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
 206        130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
 207        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 208        130, 36,130,130,130,130,130,
 209        120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
 210        120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
 211        230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
 212        120, 36, 36, 36, 36, 36,120,
 213        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 214        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 215        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 216        110,110,110,110,110,110,110
 217     };
 218
 219     /* Turn off backlight timeout */
 220     backlight_force_on(); /* backlight control in lib/helper.c */
 221
 222     rb->lcd_setfont(FONT_SYSFIXED);   /* select default font */
 223
 224     /* get the remainder of the plugin buffer */
 225     gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
 226
 227     /* initialize the greyscale buffer:
 228        Archos: 112 pixels wide, 7 rows (56 pixels) high.
 229        H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
 230     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED|GREY_ON_COP,
 231                    LCD_WIDTH, GFX_HEIGHT, NULL))
 232     {
 233         rb->splash(HZ, "Not enough memory.");
 234         return PLUGIN_ERROR;
 235     }
 236
 237     /* place greyscale overlay 1 row down */
 238     grey_set_position(0, 8);
 239
 240     rb->lcd_puts(0, 0, "Shades: 129");
 241     rb->lcd_update();
 242
 243 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 244     rb->cpu_boost(true);
 245 #endif
 246     grey_show(true);          /* switch on greyscale overlay */
 247
 248     time = *rb->current_tick; /* start time measurement */
 249
 250     grey_set_background(150);
 251     grey_clear_display();     /* fill everything with grey 150 */
 252
 253     /* draw a dark grey line star background */
 254     grey_set_foreground(80);
 255     for (y = 0; y < GFX_HEIGHT; y += 8)                   /* horizontal part */
 256     {
 257         grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
 258     }
 259     for (x = 10; x <= LCD_WIDTH; x += 10)                    /* vertical part */
 260     {
 261         grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
 262     }
 263
 264     grey_set_foreground(0);
 265     grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT);   /* black border */
 266
 267     /* draw grey tones */
 268     for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
 269     {
 270         x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
 271         grey_set_foreground(GFX_GREYTONE_STEP * i);
 272         /* vertical lines */
 273         grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
 274     }
 275
 276     grey_set_drawmode(DRMODE_COMPLEMENT);
 277     /* invert rectangle (lower half) */
 278     grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
 279                   GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
 280     /* invert a line */
 281     grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
 282                (LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
 283
 284     /* show bitmaps (1 bit and 8 bit) */
 285     /* opaque */
 286     grey_set_drawinfo(DRMODE_SOLID, 255, 100);
 287     grey_mono_bitmap(rockbox,
 288                      MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
 289                      (5*GFX_HEIGHT/16-4), 43, 7);
 290     /* transparent */
 291     grey_set_drawinfo(DRMODE_FG, 0, 100);
 292     grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
 293     /* greyscale */
 294     grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
 295                      55, 7);
 296
 297     grey_update();
 298
 299     time = *rb->current_tick - time;  /* end time measurement */
 300
 301     rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds",
 302                  time / 100, time % 100);
 303     rb->lcd_puts(0, 0, pbuf);
 304     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 305 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 306     rb->cpu_boost(false);
 307 #endif
 308
 309     /* drawing is now finished, play around with scrolling
 310      * until you press OFF or connect USB
 311      */
 312     grey_set_background(255);
 313     while (true)
 314     {
 315         scroll_amount = 1;
 316
 317         button = rb->button_get(true);
 318
 319         if (rb->default_event_handler_ex(button, cleanup, NULL)
 320             == SYS_USB_CONNECTED)
 321             return PLUGIN_USB_CONNECTED;
 322
 323         if (button & GREYSCALE_SHIFT)
 324         {
 325             if (!black_border)
 326             {
 327                 grey_set_background(0);
 328                 black_border = true;
 329             }
 330         }
 331         else
 332         {
 333             if (black_border)
 334             {
 335                 grey_set_background(255);
 336                 black_border = false;
 337             }
 338         }
 339
 340         if (button & BUTTON_REPEAT)
 341             scroll_amount = 4;
 342
 343         switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
 344         {
 345             case GREYSCALE_LEFT:
 346
 347                 grey_scroll_left(scroll_amount);  /* scroll left */
 348                 grey_update();
 349                 break;
 350
 351             case GREYSCALE_RIGHT:
 352
 353                 grey_scroll_right(scroll_amount); /* scroll right */
 354                 grey_update();
 355                 break;
 356
 357             case GREYSCALE_UP:
 358
 359                 grey_scroll_up(scroll_amount);    /* scroll up */
 360                 grey_update();
 361                 break;
 362
 363             case GREYSCALE_DOWN:
 364
 365                 grey_scroll_down(scroll_amount);  /* scroll down */
 366                 grey_update();
 367                 break;
 368 #ifdef GREYSCALE_RC_OFF
 369             case GREYSCALE_RC_OFF:
 370 #endif
 371             case GREYSCALE_OFF:
 372
 373                 cleanup(NULL);
 374                 return PLUGIN_OK;
 375         }
 376     }
 377 }
 378
 379 /*************************** Plugin entry point ****************************/
 380
 381 enum plugin_status plugin_start(const void* parameter)
 382 {
 383     (void)parameter;
 384
 385     return main();
 386 }
 387
 388 #endif /* #ifdef HAVE_LCD_BITMAP */
 389