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rockbox/apps/plugins/greyscale.c
Andrew Mahone 23d9812273 loader-initialized global plugin API: 
struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by
__header.api

the loader uses this pointer to initialize rb before calling entry_point

entry_point is no longer passed a pointer to the plugin API

all plugins, and pluginlib functions, are modified to refer to the
global rb

pluginlib functions which only served to copy the API pointer are
removed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
2009-01-16 10:34:40 +00:00

373 lines
12 KiB
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Greyscale demo plugin
*
* Copyright (C) 2004-2008 Jens Arnold
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "lib/helper.h"
#if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH < 4)
#include "lib/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) || (CONFIG_KEYPAD == MROBE100_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 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(); /* 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(); /* 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(gbuf, gbuf_size, GREY_BUFFERED|GREY_ON_COP,
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(const void* parameter)
{
(void)parameter;
return main();
}
#endif /* #ifdef HAVE_LCD_BITMAP */
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