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 #endif
  95
  96 #define GFX_HEIGHT (LCD_HEIGHT-8)
  97 #if LCD_WIDTH < 160
  98 #define GFX_GREYTONE_WIDTH 86
  99 #define GFX_GREYTONE_STEP 3
 100 #else
 101 #define GFX_GREYTONE_WIDTH 128
 102 #define GFX_GREYTONE_STEP 2
 103 #endif
 104 /******************************* Globals ***********************************/
 105
 106 GREY_INFO_STRUCT
 107 static const struct plugin_api* rb; /* global api struct pointer */
 108 static char pbuf[32];         /* global printf buffer */
 109 static unsigned char *gbuf;
 110 static size_t gbuf_size = 0;
 111
 112 /**************************** main function ********************************/
 113
 114 void cleanup(void *parameter)
 115 {
 116     (void)parameter;
 117
 118     grey_release(); /* switch off overlay and deinitialize */
 119     /* Turn on backlight timeout (revert to settings) */
 120     backlight_use_settings(rb); /* backlight control in lib/helper.c */
 121 }
 122
 123 /* this is only a demo of what the framework can do */
 124 int main(void)
 125 {
 126     int time;
 127     int x, y, i;
 128     int button, scroll_amount;
 129     bool black_border = false;
 130
 131     static const unsigned char rockbox[] = {
 132     /* ...........................................
 133      * .####...###...###..#...#.####...###..#...#.
 134      * .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
 135      * .####..#...#.#.....###...####..#...#...#...
 136      * .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
 137      * .#...#..###...###..#...#.####...###..#...#.
 138      * ...........................................
 139      * 43 x 7 pixel, 1 bpp
 140      */
 141        0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
 142        0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
 143        0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
 144        0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
 145        0x14, 0x22, 0x00
 146     };
 147
 148     static const unsigned char showing[] = {
 149     /* .......................................
 150      * ..####.#...#..###..#...#.#.#...#..####.
 151      * .#.....#...#.#...#.#...#.#.##..#.#.....
 152      * ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
 153      * .....#.#...#.#...#.#.#.#.#.#..##.#...#.
 154      * .####..#...#..###...#.#..#.#...#..####.
 155      * .......................................
 156      * 39 x 7 pixel, 1 bpp
 157      */
 158        0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
 159        0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
 160        0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
 161        0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
 162     };
 163
 164     static const unsigned char grayscale_grey[] = {
 165     /* .......................................................
 166      * ..####.####...###..#...#..####..###...###..#.....#####.
 167      * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
 168      * .#..##.####..#####..#.#...###..#.....#####.#.....####..
 169      * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
 170      * ..####.#...#.#...#...#...####...###..#...#.#####.#####.
 171      * .......................................................
 172      * 55 x 7 pixel, 8 bpp
 173      */
 174        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 175        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 176        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 177        110,110,110,110,110,110,110,
 178        120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
 179         24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
 180        230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
 181        120, 36, 36, 36, 36, 36,120,
 182        130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
 183        130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
 184        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 185        130, 36,130,130,130,130,130,
 186        140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
 187         24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
 188        140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
 189        140, 36, 36, 36, 36,140,140,
 190        130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
 191        130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
 192        130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
 193        130, 36,130,130,130,130,130,
 194        120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
 195        120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
 196        230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
 197        120, 36, 36, 36, 36, 36,120,
 198        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 199        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 200        110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
 201        110,110,110,110,110,110,110
 202     };
 203
 204     /* Turn off backlight timeout */
 205     backlight_force_on(rb); /* backlight control in lib/helper.c */
 206
 207     rb->lcd_setfont(FONT_SYSFIXED);   /* select default font */
 208
 209     /* get the remainder of the plugin buffer */
 210     gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
 211
 212     /* initialize the greyscale buffer:
 213        Archos: 112 pixels wide, 7 rows (56 pixels) high.
 214        H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
 215     if (!grey_init(rb, gbuf, gbuf_size, GREY_BUFFERED|GREY_ON_COP,
 216                    LCD_WIDTH, GFX_HEIGHT, NULL))
 217     {
 218         rb->splash(HZ, "Not enough memory.");
 219         return PLUGIN_ERROR;
 220     }
 221
 222     /* place greyscale overlay 1 row down */
 223     grey_set_position(0, 8);
 224
 225     rb->lcd_puts(0, 0, "Shades: 129");
 226     rb->lcd_update();
 227
 228 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 229     rb->cpu_boost(true);
 230 #endif
 231     grey_show(true);          /* switch on greyscale overlay */
 232
 233     time = *rb->current_tick; /* start time measurement */
 234
 235     grey_set_background(150);
 236     grey_clear_display();     /* fill everything with grey 150 */
 237
 238     /* draw a dark grey line star background */
 239     grey_set_foreground(80);
 240     for (y = 0; y < GFX_HEIGHT; y += 8)                   /* horizontal part */
 241     {
 242         grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
 243     }
 244     for (x = 10; x <= LCD_WIDTH; x += 10)                    /* vertical part */
 245     {
 246         grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
 247     }
 248
 249     grey_set_foreground(0);
 250     grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT);   /* black border */
 251
 252     /* draw grey tones */
 253     for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
 254     {
 255         x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
 256         grey_set_foreground(GFX_GREYTONE_STEP * i);
 257         /* vertical lines */
 258         grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
 259     }
 260
 261     grey_set_drawmode(DRMODE_COMPLEMENT);
 262     /* invert rectangle (lower half) */
 263     grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
 264                   GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
 265     /* invert a line */
 266     grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
 267                (LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
 268
 269     /* show bitmaps (1 bit and 8 bit) */
 270     /* opaque */
 271     grey_set_drawinfo(DRMODE_SOLID, 255, 100);
 272     grey_mono_bitmap(rockbox,
 273                      MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
 274                      (5*GFX_HEIGHT/16-4), 43, 7);
 275     /* transparent */
 276     grey_set_drawinfo(DRMODE_FG, 0, 100);
 277     grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
 278     /* greyscale */
 279     grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
 280                      55, 7);
 281
 282     grey_update();
 283
 284     time = *rb->current_tick - time;  /* end time measurement */
 285
 286     rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds",
 287                  time / 100, time % 100);
 288     rb->lcd_puts(0, 0, pbuf);
 289     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 290 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 291     rb->cpu_boost(false);
 292 #endif
 293
 294     /* drawing is now finished, play around with scrolling
 295      * until you press OFF or connect USB
 296      */
 297     grey_set_background(255);
 298     while (true)
 299     {
 300         scroll_amount = 1;
 301
 302         button = rb->button_get(true);
 303
 304         if (rb->default_event_handler_ex(button, cleanup, NULL)
 305             == SYS_USB_CONNECTED)
 306             return PLUGIN_USB_CONNECTED;
 307
 308         if (button & GREYSCALE_SHIFT)
 309         {
 310             if (!black_border)
 311             {
 312                 grey_set_background(0);
 313                 black_border = true;
 314             }
 315         }
 316         else
 317         {
 318             if (black_border)
 319             {
 320                 grey_set_background(255);
 321                 black_border = false;
 322             }
 323         }
 324
 325         if (button & BUTTON_REPEAT)
 326             scroll_amount = 4;
 327
 328         switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
 329         {
 330             case GREYSCALE_LEFT:
 331
 332                 grey_scroll_left(scroll_amount);  /* scroll left */
 333                 grey_update();
 334                 break;
 335
 336             case GREYSCALE_RIGHT:
 337
 338                 grey_scroll_right(scroll_amount); /* scroll right */
 339                 grey_update();
 340                 break;
 341
 342             case GREYSCALE_UP:
 343
 344                 grey_scroll_up(scroll_amount);    /* scroll up */
 345                 grey_update();
 346                 break;
 347
 348             case GREYSCALE_DOWN:
 349
 350                 grey_scroll_down(scroll_amount);  /* scroll down */
 351                 grey_update();
 352                 break;
 353 #ifdef GREYSCALE_RC_OFF
 354             case GREYSCALE_RC_OFF:
 355 #endif
 356             case GREYSCALE_OFF:
 357
 358                 cleanup(NULL);
 359                 return PLUGIN_OK;
 360         }
 361     }
 362 }
 363
 364 /*************************** Plugin entry point ****************************/
 365
 366 enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
 367 {
 368     rb = api; /* copy to global api pointer */
 369     (void)parameter;
 370
 371     return main();
 372 }
 373
 374 #endif /* #ifdef HAVE_LCD_BITMAP */
 375