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
  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 unsigned char *gbuf;
 124 static size_t gbuf_size = 0;
 125
 126 /**************************** main function ********************************/
 127
 128 void cleanup(void *parameter)
 129 {
 130     (void)parameter;
 131
 132     grey_release(); /* switch off overlay and deinitialize */
 133     /* Turn on backlight timeout (revert to settings) */
 134     backlight_use_settings(); /* backlight control in lib/helper.c */
 135 }
 136
 137 /* this is only a demo of what the framework can do */
 138 int main(void)
 139 {
 140     int time;
 141     int x, y, i;
 142     int button, scroll_amount;
 143     bool black_border = false;
 144
 145     static const unsigned char rockbox[] = {
 146     /* ...........................................
 147      * .####...###...###..#...#.####...###..#...#.
 148      * .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
 149      * .####..#...#.#.....###...####..#...#...#...
 150      * .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
 151      * .#...#..###...###..#...#.####...###..#...#.
 152      * ...........................................
 153      * 43 x 7 pixel, 1 bpp
 154      */
 155        0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
 156        0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
 157        0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
 158        0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
 159        0x14, 0x22, 0x00
 160     };
 161
 162     static const unsigned char showing[] = {
 163     /* .......................................
 164      * ..####.#...#..###..#...#.#.#...#..####.
 165      * .#.....#...#.#...#.#...#.#.##..#.#.....
 166      * ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
 167      * .....#.#...#.#...#.#.#.#.#.#..##.#...#.
 168      * .####..#...#..###...#.#..#.#...#..####.
 169      * .......................................
 170      * 39 x 7 pixel, 1 bpp
 171      */
 172        0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
 173        0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
 174        0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
 175        0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
 176     };
 177
 178     static const unsigned char grayscale_grey[] = {
 179     /* .......................................................
 180      * ..####.####...###..#...#..####..###...###..#.....#####.
 181      * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
 182      * .#..##.####..#####..#.#...###..#.....#####.#.....####..
 183      * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
 184      * ..####.#...#.#...#...#...####...###..#...#.#####.#####.
 185      * .......................................................
 186      * 55 x 7 pixel, 8 bpp
 187      */
 188        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 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,
 192        120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
 193         24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
 194        230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
 195        120, 36, 36, 36, 36, 36,120,
 196        130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
 197        130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
 198        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 199        130, 36,130,130,130,130,130,
 200        140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
 201         24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
 202        140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
 203        140, 36, 36, 36, 36,140,140,
 204        130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
 205        130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
 206        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 207        130, 36,130,130,130,130,130,
 208        120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
 209        120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
 210        230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
 211        120, 36, 36, 36, 36, 36,120,
 212        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 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
 216     };
 217
 218     /* Turn off backlight timeout */
 219     backlight_force_on(); /* backlight control in lib/helper.c */
 220
 221     rb->lcd_setfont(FONT_SYSFIXED);   /* select default font */
 222
 223     /* get the remainder of the plugin buffer */
 224     gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
 225
 226     /* initialize the greyscale buffer:
 227        Archos: 112 pixels wide, 7 rows (56 pixels) high.
 228        H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
 229     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED|GREY_ON_COP,
 230                    LCD_WIDTH, GFX_HEIGHT, NULL))
 231     {
 232         rb->splash(HZ, "Not enough memory.");
 233         return PLUGIN_ERROR;
 234     }
 235
 236     /* place greyscale overlay 1 row down */
 237     grey_set_position(0, 8);
 238
 239     rb->lcd_puts(0, 0, "Shades: 129");
 240     rb->lcd_update();
 241
 242 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 243     rb->cpu_boost(true);
 244 #endif
 245     grey_show(true);          /* switch on greyscale overlay */
 246
 247     time = *rb->current_tick; /* start time measurement */
 248
 249     grey_set_background(150);
 250     grey_clear_display();     /* fill everything with grey 150 */
 251
 252     /* draw a dark grey line star background */
 253     grey_set_foreground(80);
 254     for (y = 0; y < GFX_HEIGHT; y += 8)                   /* horizontal part */
 255     {
 256         grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
 257     }
 258     for (x = 10; x <= LCD_WIDTH; x += 10)                    /* vertical part */
 259     {
 260         grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
 261     }
 262
 263     grey_set_foreground(0);
 264     grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT);   /* black border */
 265
 266     /* draw grey tones */
 267     for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
 268     {
 269         x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
 270         grey_set_foreground(GFX_GREYTONE_STEP * i);
 271         /* vertical lines */
 272         grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
 273     }
 274
 275     grey_set_drawmode(DRMODE_COMPLEMENT);
 276     /* invert rectangle (lower half) */
 277     grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
 278                   GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
 279     /* invert a line */
 280     grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
 281                (LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
 282
 283     /* show bitmaps (1 bit and 8 bit) */
 284     /* opaque */
 285     grey_set_drawinfo(DRMODE_SOLID, 255, 100);
 286     grey_mono_bitmap(rockbox,
 287                      MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
 288                      (5*GFX_HEIGHT/16-4), 43, 7);
 289     /* transparent */
 290     grey_set_drawinfo(DRMODE_FG, 0, 100);
 291     grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
 292     /* greyscale */
 293     grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
 294                      55, 7);
 295
 296     grey_update();
 297
 298     time = *rb->current_tick - time;  /* end time measurement */
 299
 300     rb->lcd_putsf(0, 0, "Shades: 129, %d.%02ds", time / 100, time % 100);
 301     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 302 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 303     rb->cpu_boost(false);
 304 #endif
 305
 306     /* drawing is now finished, play around with scrolling
 307      * until you press OFF or connect USB
 308      */
 309     grey_set_background(255);
 310     while (true)
 311     {
 312         scroll_amount = 1;
 313
 314         button = rb->button_get(true);
 315
 316         exit_on_usb(button);
 317
 318         if (button & GREYSCALE_SHIFT)
 319         {
 320             if (!black_border)
 321             {
 322                 grey_set_background(0);
 323                 black_border = true;
 324             }
 325         }
 326         else
 327         {
 328             if (black_border)
 329             {
 330                 grey_set_background(255);
 331                 black_border = false;
 332             }
 333         }
 334
 335         if (button & BUTTON_REPEAT)
 336             scroll_amount = 4;
 337
 338         switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
 339         {
 340             case GREYSCALE_LEFT:
 341
 342                 grey_scroll_left(scroll_amount);  /* scroll left */
 343                 grey_update();
 344                 break;
 345
 346             case GREYSCALE_RIGHT:
 347
 348                 grey_scroll_right(scroll_amount); /* scroll right */
 349                 grey_update();
 350                 break;
 351
 352             case GREYSCALE_UP:
 353
 354                 grey_scroll_up(scroll_amount);    /* scroll up */
 355                 grey_update();
 356                 break;
 357
 358             case GREYSCALE_DOWN:
 359
 360                 grey_scroll_down(scroll_amount);  /* scroll down */
 361                 grey_update();
 362                 break;
 363 #ifdef GREYSCALE_RC_OFF
 364             case GREYSCALE_RC_OFF:
 365 #endif
 366             case GREYSCALE_OFF:
 367                 return PLUGIN_OK;
 368         }
 369     }
 370 }
 371
 372 /*************************** Plugin entry point ****************************/
 373
 374 enum plugin_status plugin_start(const void* parameter)
 375 {
 376     (void)parameter;
 377
 378     atexit(cleanup);
 379     return main();
 380 }
 381
 382 #endif /* #ifdef HAVE_LCD_BITMAP */
 383