From e4c1667979b9c320b1e24acb6c5db84711b3862e Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Wed, 19 May 2004 08:21:30 +0000 Subject: Grayscale demo plugin, now using the grayscale library git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4642 a1c6a512-1295-4272-9138-f99709370657 --- apps/plugins/grayscale.c | 259 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 259 insertions(+) create mode 100644 apps/plugins/grayscale.c diff --git a/apps/plugins/grayscale.c b/apps/plugins/grayscale.c new file mode 100644 index 0000000000..0231541761 --- /dev/null +++ b/apps/plugins/grayscale.c @@ -0,0 +1,259 @@ +/*************************************************************************** +* __________ __ ___. +* Open \______ \ ____ ____ | | _\_ |__ _______ ___ +* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / +* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < +* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ +* \/ \/ \/ \/ \/ +* $Id$ +* +* Grayscale demo plugin +* +* Copyright (C) 2004 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. +* +****************************************************************************/ + +#ifndef SIMULATOR /* not for simulator by now */ +#include "plugin.h" + +#ifdef HAVE_LCD_BITMAP /* and also not for the Player */ +#include "gray.h" + +/******************************* Globals ***********************************/ + +static struct plugin_api* rb; /* global api struct pointer */ +static char pbuf[32]; /* global printf buffer */ +static unsigned char *gbuf; +static unsigned int gbuf_size = 0; + +/**************************** main function ********************************/ + +/* this is only a demo of what the framework can do */ +int main(void) +{ + int shades, time; + int x, y, i; + int button, scroll_amount; + bool black_border; + + static 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 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 unsigned char grayscale_gray[] = { + /* ....................................................... + * ..####.####...###..#...#..####..###...###..#.....#####. + * .#.....#...#.#...#.#...#.#.....#...#.#...#.#.....#..... + * .#..##.####..#####..#.#...###..#.....#####.#.....####.. + * .#...#.#..#..#...#...#.......#.#...#.#...#.#.....#..... + * ..####.#...#.#...#...#...####...###..#...#.#####.#####. + * ....................................................... + * 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 + }; + + if (rb->global_settings->backlight_timeout > 0) + rb->backlight_set_timeout(1); /* keep the light on */ + + 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 grayscale buffer: + * 112 pixels wide, 7 rows (56 pixels) high, (try to) reserve + * 32 bitplanes for 33 shades of gray. (uses 25268 bytes)*/ + shades = gray_init_buffer(gbuf, gbuf_size, 112, 7, 32) + 1; + + /* place grayscale overlay 1 row down */ + gray_position_display(0, 1); + + rb->snprintf(pbuf, sizeof(pbuf), "Shades: %d", shades); + rb->lcd_puts(0, 0, pbuf); + rb->lcd_update(); + + gray_show_display(true); /* switch on grayscale overlay */ + + time = *rb->current_tick; /* start time measurement */ + + gray_fillrect(0, 0, 111, 55, 150); /* fill everything with gray 150 */ + + /* draw a dark gray line star background */ + for (y = 0; y < 56; y += 8) /* horizontal part */ + { + gray_drawline(0, y, 111, 55 - y, 80); /* gray lines */ + } + for (x = 10; x < 112; x += 10) /* vertical part */ + { + gray_drawline(x, 0, 111 - x, 55, 80); /* gray lines */ + } + + gray_drawrect(0, 0, 111, 55, 0); /* black border */ + + /* draw gray tones */ + for (i = 0; i < 86; i++) + { + x = 13 + i; + gray_fillrect(x, 6, x, 49, 3 * i); /* gray rectangles */ + } + + gray_invertrect(13, 29, 98, 49); /* invert rectangle (lower half) */ + gray_invertline(13, 27, 98, 27); /* invert a line */ + + /* show bitmaps (1 bit and 8 bit) */ + gray_drawbitmap(rockbox, 14, 13, 43, 7, 43, true, 255, 100); /* opaque */ + gray_drawbitmap(showing, 58, 13, 39, 7, 39, false, 0, 0); /* transparent */ + gray_drawgraymap(grayscale_gray, 28, 35, 55, 7, 55); + + time = *rb->current_tick - time; /* end time measurement */ + + rb->snprintf(pbuf, sizeof(pbuf), "Shades: %d, %d.%02ds", shades, + time / 100, time % 100); + rb->lcd_puts(0, 0, pbuf); + gray_deferred_update(); /* schedule an lcd_update() */ + + /* drawing is now finished, play around with scrolling + * until you press OFF or connect USB + */ + while (true) + { + scroll_amount = 1; + black_border = false; + + button = rb->button_get(true); + + if (button == SYS_USB_CONNECTED) + { + gray_release_buffer(); /* switch off overlay and deinitialize */ + /* restore normal backlight setting */ + rb->backlight_set_timeout(rb->global_settings->backlight_timeout); + return PLUGIN_USB_CONNECTED; + } + + if (button & BUTTON_ON) + black_border = true; + + if (button & BUTTON_REPEAT) + scroll_amount = 4; + + switch(button & ~(BUTTON_ON | BUTTON_REPEAT)) + { + case BUTTON_LEFT: + + gray_scroll_left(scroll_amount, black_border); /* scroll left */ + break; + + case BUTTON_RIGHT: + + gray_scroll_right(scroll_amount, black_border); /* scroll right */ + break; + + case BUTTON_UP: + + gray_scroll_up(scroll_amount, black_border); /* scroll up */ + break; + + case BUTTON_DOWN: + + gray_scroll_down(scroll_amount, black_border); /* scroll down */ + break; + + case BUTTON_OFF: + + gray_release_buffer(); /* switch off overlay and deinitialize */ + /* restore normal backlight setting */ + rb->backlight_set_timeout(rb->global_settings->backlight_timeout); + return PLUGIN_OK; + } + } +} + +/*************************** Plugin entry point ****************************/ + +enum plugin_status plugin_start(struct plugin_api* api, void* parameter) +{ + int ret; + /* this macro should be called as the first thing you do in the plugin. + it test that the api version and model the plugin was compiled for + matches the machine it is running on */ + TEST_PLUGIN_API(api); + + rb = api; // copy to global api pointer + (void)parameter; + + /* This plugin uses the grayscale framework, so initialize */ + gray_init(api); + + ret = main(); + + if (ret == PLUGIN_USB_CONNECTED) + rb->usb_screen(); + return ret; +} + +#endif // #ifdef HAVE_LCD_BITMAP +#endif // #ifndef SIMULATOR + -- cgit v1.2.3