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 #endif
 103
 104 #define GFX_HEIGHT (LCD_HEIGHT-8)
 105 #if LCD_WIDTH < 160
 106 #define GFX_GREYTONE_WIDTH 86
 107 #define GFX_GREYTONE_STEP 3
 108 #else
 109 #define GFX_GREYTONE_WIDTH 128
 110 #define GFX_GREYTONE_STEP 2
 111 #endif
 112 /******************************* Globals ***********************************/
 113
 114 GREY_INFO_STRUCT
 115 static char pbuf[32];         /* global printf buffer */
 116 static unsigned char *gbuf;
 117 static size_t gbuf_size = 0;
 118
 119 /**************************** main function ********************************/
 120
 121 void cleanup(void *parameter)
 122 {
 123     (void)parameter;
 124
 125     grey_release(); /* switch off overlay and deinitialize */
 126     /* Turn on backlight timeout (revert to settings) */
 127     backlight_use_settings(); /* backlight control in lib/helper.c */
 128 }
 129
 130 /* this is only a demo of what the framework can do */
 131 int main(void)
 132 {
 133     int time;
 134     int x, y, i;
 135     int button, scroll_amount;
 136     bool black_border = false;
 137
 138     static const unsigned char rockbox[] = {
 139     /* ...........................................
 140      * .####...###...###..#...#.####...###..#...#.
 141      * .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
 142      * .####..#...#.#.....###...####..#...#...#...
 143      * .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
 144      * .#...#..###...###..#...#.####...###..#...#.
 145      * ...........................................
 146      * 43 x 7 pixel, 1 bpp
 147      */
 148        0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
 149        0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
 150        0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
 151        0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
 152        0x14, 0x22, 0x00
 153     };
 154
 155     static const unsigned char showing[] = {
 156     /* .......................................
 157      * ..####.#...#..###..#...#.#.#...#..####.
 158      * .#.....#...#.#...#.#...#.#.##..#.#.....
 159      * ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
 160      * .....#.#...#.#...#.#.#.#.#.#..##.#...#.
 161      * .####..#...#..###...#.#..#.#...#..####.
 162      * .......................................
 163      * 39 x 7 pixel, 1 bpp
 164      */
 165        0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
 166        0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
 167        0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
 168        0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
 169     };
 170
 171     static const unsigned char grayscale_grey[] = {
 172     /* .......................................................
 173      * ..####.####...###..#...#..####..###...###..#.....#####.
 174      * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
 175      * .#..##.####..#####..#.#...###..#.....#####.#.....####..
 176      * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
 177      * ..####.#...#.#...#...#...####...###..#...#.#####.#####.
 178      * .......................................................
 179      * 55 x 7 pixel, 8 bpp
 180      */
 181        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 182        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 183        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 184        110,110,110,110,110,110,110,
 185        120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
 186         24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
 187        230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
 188        120, 36, 36, 36, 36, 36,120,
 189        130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
 190        130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
 191        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 192        130, 36,130,130,130,130,130,
 193        140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
 194         24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
 195        140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
 196        140, 36, 36, 36, 36,140,140,
 197        130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
 198        130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
 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        120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
 202        120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
 203        230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
 204        120, 36, 36, 36, 36, 36,120,
 205        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 206        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 207        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 208        110,110,110,110,110,110,110
 209     };
 210
 211     /* Turn off backlight timeout */
 212     backlight_force_on(); /* backlight control in lib/helper.c */
 213
 214     rb->lcd_setfont(FONT_SYSFIXED);   /* select default font */
 215
 216     /* get the remainder of the plugin buffer */
 217     gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
 218
 219     /* initialize the greyscale buffer:
 220        Archos: 112 pixels wide, 7 rows (56 pixels) high.
 221        H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
 222     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED|GREY_ON_COP,
 223                    LCD_WIDTH, GFX_HEIGHT, NULL))
 224     {
 225         rb->splash(HZ, "Not enough memory.");
 226         return PLUGIN_ERROR;
 227     }
 228
 229     /* place greyscale overlay 1 row down */
 230     grey_set_position(0, 8);
 231
 232     rb->lcd_puts(0, 0, "Shades: 129");
 233     rb->lcd_update();
 234
 235 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 236     rb->cpu_boost(true);
 237 #endif
 238     grey_show(true);          /* switch on greyscale overlay */
 239
 240     time = *rb->current_tick; /* start time measurement */
 241
 242     grey_set_background(150);
 243     grey_clear_display();     /* fill everything with grey 150 */
 244
 245     /* draw a dark grey line star background */
 246     grey_set_foreground(80);
 247     for (y = 0; y < GFX_HEIGHT; y += 8)                   /* horizontal part */
 248     {
 249         grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
 250     }
 251     for (x = 10; x <= LCD_WIDTH; x += 10)                    /* vertical part */
 252     {
 253         grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
 254     }
 255
 256     grey_set_foreground(0);
 257     grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT);   /* black border */
 258
 259     /* draw grey tones */
 260     for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
 261     {
 262         x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
 263         grey_set_foreground(GFX_GREYTONE_STEP * i);
 264         /* vertical lines */
 265         grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
 266     }
 267
 268     grey_set_drawmode(DRMODE_COMPLEMENT);
 269     /* invert rectangle (lower half) */
 270     grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
 271                   GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
 272     /* invert a line */
 273     grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
 274                (LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
 275
 276     /* show bitmaps (1 bit and 8 bit) */
 277     /* opaque */
 278     grey_set_drawinfo(DRMODE_SOLID, 255, 100);
 279     grey_mono_bitmap(rockbox,
 280                      MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
 281                      (5*GFX_HEIGHT/16-4), 43, 7);
 282     /* transparent */
 283     grey_set_drawinfo(DRMODE_FG, 0, 100);
 284     grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
 285     /* greyscale */
 286     grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
 287                      55, 7);
 288
 289     grey_update();
 290
 291     time = *rb->current_tick - time;  /* end time measurement */
 292
 293     rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds",
 294                  time / 100, time % 100);
 295     rb->lcd_puts(0, 0, pbuf);
 296     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 297 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 298     rb->cpu_boost(false);
 299 #endif
 300
 301     /* drawing is now finished, play around with scrolling
 302      * until you press OFF or connect USB
 303      */
 304     grey_set_background(255);
 305     while (true)
 306     {
 307         scroll_amount = 1;
 308
 309         button = rb->button_get(true);
 310
 311         if (rb->default_event_handler_ex(button, cleanup, NULL)
 312             == SYS_USB_CONNECTED)
 313             return PLUGIN_USB_CONNECTED;
 314
 315         if (button & GREYSCALE_SHIFT)
 316         {
 317             if (!black_border)
 318             {
 319                 grey_set_background(0);
 320                 black_border = true;
 321             }
 322         }
 323         else
 324         {
 325             if (black_border)
 326             {
 327                 grey_set_background(255);
 328                 black_border = false;
 329             }
 330         }
 331
 332         if (button & BUTTON_REPEAT)
 333             scroll_amount = 4;
 334
 335         switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
 336         {
 337             case GREYSCALE_LEFT:
 338
 339                 grey_scroll_left(scroll_amount);  /* scroll left */
 340                 grey_update();
 341                 break;
 342
 343             case GREYSCALE_RIGHT:
 344
 345                 grey_scroll_right(scroll_amount); /* scroll right */
 346                 grey_update();
 347                 break;
 348
 349             case GREYSCALE_UP:
 350
 351                 grey_scroll_up(scroll_amount);    /* scroll up */
 352                 grey_update();
 353                 break;
 354
 355             case GREYSCALE_DOWN:
 356
 357                 grey_scroll_down(scroll_amount);  /* scroll down */
 358                 grey_update();
 359                 break;
 360 #ifdef GREYSCALE_RC_OFF
 361             case GREYSCALE_RC_OFF:
 362 #endif
 363             case GREYSCALE_OFF:
 364
 365                 cleanup(NULL);
 366                 return PLUGIN_OK;
 367         }
 368     }
 369 }
 370
 371 /*************************** Plugin entry point ****************************/
 372
 373 enum plugin_status plugin_start(const void* parameter)
 374 {
 375     (void)parameter;
 376
 377     return main();
 378 }
 379
 380 #endif /* #ifdef HAVE_LCD_BITMAP */
 381