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rockbox/apps/plugins/greyscale.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Greyscale demo plugin
*
* Copyright (C) 2004-2008 Jens Arnold
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "helper.h"
#if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH < 4)
#include "grey.h"
PLUGIN_HEADER
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
#define GREYSCALE_SHIFT BUTTON_ON
#define GREYSCALE_UP BUTTON_UP
#define GREYSCALE_DOWN BUTTON_DOWN
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_OFF
#elif CONFIG_KEYPAD == ONDIO_PAD
#define GREYSCALE_SHIFT BUTTON_MENU
#define GREYSCALE_UP BUTTON_UP
#define GREYSCALE_DOWN BUTTON_DOWN
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_OFF
#elif CONFIG_KEYPAD == IRIVER_H100_PAD
#define GREYSCALE_SHIFT BUTTON_ON
#define GREYSCALE_UP BUTTON_UP
#define GREYSCALE_DOWN BUTTON_DOWN
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_OFF
#define GREYSCALE_RC_OFF BUTTON_RC_STOP
#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
#define GREYSCALE_SHIFT BUTTON_PLAY /* won't work, but define it anyway */
#define GREYSCALE_UP BUTTON_UP
#define GREYSCALE_DOWN BUTTON_DOWN
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_POWER
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define GREYSCALE_SHIFT BUTTON_SELECT
#define GREYSCALE_UP BUTTON_SCROLL_BACK
#define GREYSCALE_DOWN BUTTON_SCROLL_FWD
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_MENU
#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
#define GREYSCALE_SHIFT BUTTON_PLAY
#define GREYSCALE_UP BUTTON_UP
#define GREYSCALE_DOWN BUTTON_DOWN
#define GREYSCALE_LEFT BUTTON_LEFT
#define GREYSCALE_RIGHT BUTTON_RIGHT
#define GREYSCALE_OFF BUTTON_EQ
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define GREYSCALE_SHIFT BUTTON_RC_PLAY /* somewhat dangerous... */
#define GREYSCALE_UP BUTTON_RC_VOL_UP
#define GREYSCALE_DOWN BUTTON_RC_VOL_DOWN
#define GREYSCALE_LEFT BUTTON_RC_REW
#define GREYSCALE_RIGHT BUTTON_RC_FF
#define GREYSCALE_OFF BUTTON_RC_REC
#define GREYSCALE_RC_OFF BUTTON_REC
#endif
#define GFX_HEIGHT (LCD_HEIGHT-8)
#if LCD_WIDTH < 160
#define GFX_GREYTONE_WIDTH 86
#define GFX_GREYTONE_STEP 3
#else
#define GFX_GREYTONE_WIDTH 128
#define GFX_GREYTONE_STEP 2
#endif
/******************************* Globals ***********************************/
GREY_INFO_STRUCT
static struct plugin_api* rb; /* global api struct pointer */
static char pbuf[32]; /* global printf buffer */
static unsigned char *gbuf;
static size_t gbuf_size = 0;
/**************************** main function ********************************/
void cleanup(void *parameter)
{
(void)parameter;
grey_release(); /* switch off overlay and deinitialize */
/* Turn on backlight timeout (revert to settings) */
backlight_use_settings(rb); /* backlight control in lib/helper.c */
}
/* this is only a demo of what the framework can do */
int main(void)
{
int time;
int x, y, i;
int button, scroll_amount;
bool black_border = false;
static const unsigned char rockbox[] = {
/* ...........................................
* .####...###...###..#...#.####...###..#...#.
* .#...#.#...#.#...#.#..#..#...#.#...#..#.#..
* .####..#...#.#.....###...####..#...#...#...
* .#..#..#...#.#...#.#..#..#...#.#...#..#.#..
* .#...#..###...###..#...#.####...###..#...#.
* ...........................................
* 43 x 7 pixel, 1 bpp
*/
0x00, 0x3E, 0x0A, 0x0A, 0x1A, 0x24, 0x00, 0x1C, 0x22, 0x22,
0x22, 0x1C, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x14, 0x00, 0x3E,
0x08, 0x08, 0x14, 0x22, 0x00, 0x3E, 0x2A, 0x2A, 0x2A, 0x14,
0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x22, 0x14, 0x08,
0x14, 0x22, 0x00
};
static const unsigned char showing[] = {
/* .......................................
* ..####.#...#..###..#...#.#.#...#..####.
* .#.....#...#.#...#.#...#.#.##..#.#.....
* ..###..#####.#...#.#.#.#.#.#.#.#.#..##.
* .....#.#...#.#...#.#.#.#.#.#..##.#...#.
* .####..#...#..###...#.#..#.#...#..####.
* .......................................
* 39 x 7 pixel, 1 bpp
*/
0x00, 0x24, 0x2A, 0x2A, 0x2A, 0x12, 0x00, 0x3E, 0x08, 0x08,
0x08, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x00, 0x1E,
0x20, 0x18, 0x20, 0x1E, 0x00, 0x3E, 0x00, 0x3E, 0x04, 0x08,
0x10, 0x3E, 0x00, 0x1C, 0x22, 0x22, 0x2A, 0x3A, 0x00
};
static const unsigned char grayscale_grey[] = {
/* .......................................................
* ..####.####...###..#...#..####..###...###..#.....#####.
* .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#.....
* .#..##.####..#####..#.#...###..#.....#####.#.....####..
* .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#.....
* ..####.#...#.#...#...#...####...###..#...#.#####.#####.
* .......................................................
* 55 x 7 pixel, 8 bpp
*/
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110,
120,120, 20, 20, 20, 20,120,222,222,222,222,120,120,120, 24, 24,
24,120,120,226,120,120,120,226,120,120, 28, 28, 28, 28,120,120,
230,230,230,120,120,120, 32, 32, 32,120,120,234,120,120,120,120,
120, 36, 36, 36, 36, 36,120,
130, 20,130,130,130,130,130,222,130,130,130,222,130, 24,130,130,
130, 24,130,226,130,130,130,226,130, 28,130,130,130,130,130,230,
130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
130, 36,130,130,130,130,130,
140, 20,140,140, 20, 20,140,222,222,222,222,140,140, 24, 24, 24,
24, 24,140,140,226,140,226,140,140,140, 28, 28, 28,140,140,230,
140,140,140,140,140, 32, 32, 32, 32, 32,140,234,140,140,140,140,
140, 36, 36, 36, 36,140,140,
130, 20,130,130,130, 20,130,222,130,130,222,130,130, 24,130,130,
130, 24,130,130,130,226,130,130,130,130,130,130,130, 28,130,230,
130,130,130,230,130, 32,130,130,130, 32,130,234,130,130,130,130,
130, 36,130,130,130,130,130,
120,120, 20, 20, 20, 20,120,222,120,120,120,222,120, 24,120,120,
120, 24,120,120,120,226,120,120,120, 28, 28, 28, 28,120,120,120,
230,230,230,120,120, 32,120,120,120, 32,120,234,234,234,234,234,
120, 36, 36, 36, 36, 36,120,
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,
110,110,110,110,110,110,110
};
/* Turn off backlight timeout */
backlight_force_on(rb); /* backlight control in lib/helper.c */
rb->lcd_setfont(FONT_SYSFIXED); /* select default font */
/* get the remainder of the plugin buffer */
gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
/* initialize the greyscale buffer:
Archos: 112 pixels wide, 7 rows (56 pixels) high.
H1x0: 160 pixels wide, 30 rows (120 pixels) high. */
if (!grey_init(rb, gbuf, gbuf_size, GREY_BUFFERED,
LCD_WIDTH, GFX_HEIGHT, NULL))
{
rb->splash(HZ, "Not enough memory.");
return PLUGIN_ERROR;
}
/* place greyscale overlay 1 row down */
grey_set_position(0, 8);
rb->lcd_puts(0, 0, "Shades: 129");
rb->lcd_update();
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(true);
#endif
grey_show(true); /* switch on greyscale overlay */
time = *rb->current_tick; /* start time measurement */
grey_set_background(150);
grey_clear_display(); /* fill everything with grey 150 */
/* draw a dark grey line star background */
grey_set_foreground(80);
for (y = 0; y < GFX_HEIGHT; y += 8) /* horizontal part */
{
grey_drawline(0, y, (LCD_WIDTH-1), (GFX_HEIGHT-1) - y); /*grey lines */
}
for (x = 10; x <= LCD_WIDTH; x += 10) /* vertical part */
{
grey_drawline(x, 0, (LCD_WIDTH-1) - x, (GFX_HEIGHT-1)); /*grey lines */
}
grey_set_foreground(0);
grey_drawrect(0, 0, LCD_WIDTH, GFX_HEIGHT); /* black border */
/* draw grey tones */
for (i = 0; i < GFX_GREYTONE_WIDTH; i++)
{
x = ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2) + i;
grey_set_foreground(GFX_GREYTONE_STEP * i);
/* vertical lines */
grey_vline(x, (GFX_HEIGHT/8), (GFX_HEIGHT-GFX_HEIGHT/8-1));
}
grey_set_drawmode(DRMODE_COMPLEMENT);
/* invert rectangle (lower half) */
grey_fillrect((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2+1),
GFX_GREYTONE_WIDTH, (GFX_HEIGHT/2-GFX_HEIGHT/8-1));
/* invert a line */
grey_hline((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2,
(LCD_WIDTH+GFX_GREYTONE_WIDTH)/2, (GFX_HEIGHT/2-1));
/* show bitmaps (1 bit and 8 bit) */
/* opaque */
grey_set_drawinfo(DRMODE_SOLID, 255, 100);
grey_mono_bitmap(rockbox,
MAX((LCD_WIDTH/2-47), ((LCD_WIDTH-GFX_GREYTONE_WIDTH)/2)),
(5*GFX_HEIGHT/16-4), 43, 7);
/* transparent */
grey_set_drawinfo(DRMODE_FG, 0, 100);
grey_mono_bitmap(showing, (LCD_WIDTH/2+4) , (5*GFX_HEIGHT/16-4), 39, 7);
/* greyscale */
grey_gray_bitmap(grayscale_grey, ((LCD_WIDTH-55)/2), (11*GFX_HEIGHT/16-4),
55, 7);
grey_update();
time = *rb->current_tick - time; /* end time measurement */
rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds",
time / 100, time % 100);
rb->lcd_puts(0, 0, pbuf);
grey_deferred_lcd_update(); /* schedule an lcd_update() */
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
/* drawing is now finished, play around with scrolling
* until you press OFF or connect USB
*/
grey_set_background(255);
while (true)
{
scroll_amount = 1;
button = rb->button_get(true);
if (rb->default_event_handler_ex(button, cleanup, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
if (button & GREYSCALE_SHIFT)
{
if (!black_border)
{
grey_set_background(0);
black_border = true;
}
}
else
{
if (black_border)
{
grey_set_background(255);
black_border = false;
}
}
if (button & BUTTON_REPEAT)
scroll_amount = 4;
switch (button & ~(GREYSCALE_SHIFT | BUTTON_REPEAT))
{
case GREYSCALE_LEFT:
grey_scroll_left(scroll_amount); /* scroll left */
grey_update();
break;
case GREYSCALE_RIGHT:
grey_scroll_right(scroll_amount); /* scroll right */
grey_update();
break;
case GREYSCALE_UP:
grey_scroll_up(scroll_amount); /* scroll up */
grey_update();
break;
case GREYSCALE_DOWN:
grey_scroll_down(scroll_amount); /* scroll down */
grey_update();
break;
#ifdef GREYSCALE_RC_OFF
case GREYSCALE_RC_OFF:
#endif
case GREYSCALE_OFF:
cleanup(NULL);
return PLUGIN_OK;
}
}
}
/*************************** Plugin entry point ****************************/
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
rb = api; /* copy to global api pointer */
(void)parameter;
return main();
}
#endif /* #ifdef HAVE_LCD_BITMAP */
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