forked from len0rd/rockbox
FS#10911 - Plugins: Fractals (formerly Mandelbrot)
- Rename the mandelbrot plugin to fractals - Update manual accordingly - Separate plugin's functionality into separate files - Lay the ground for having fractals sets other than the Mandelbrot set. For that the following will need to be implemented: - Create a new file for the new fracral set - Provide key mapping to switch between sets git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24230 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Tomer Shalev
parent
51630cbac1
commit
7719d297f2
20 changed files with 1676 additions and 5 deletions
260
apps/plugins/fractals/fractal.c
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260
apps/plugins/fractals/fractal.c
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2004 Matthias Wientapper
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* Heavily extended 2005 Jens Arnold
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* Extended 2009 Tomer Shalev
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#ifdef HAVE_LCD_BITMAP
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#include "fractal.h"
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#include "fractal_rect.h"
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#include "fractal_sets.h"
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#include "mandelbrot_set.h"
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#if (LCD_DEPTH < 8)
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#define USEGSLIB
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#define MYLCD(fn) grey_ub_ ## fn
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#define MYLCD_UPDATE()
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#define MYXLCD(fn) grey_ub_ ## fn
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#else
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#define MYLCD(fn) rb->lcd_ ## fn
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#define MYLCD_UPDATE() rb->lcd_update();
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#define MYXLCD(fn) xlcd_ ## fn
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#endif
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#ifdef USEGSLIB
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GREY_INFO_STRUCT
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static unsigned char *gbuf;
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static size_t gbuf_size = 0;
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unsigned char imgbuffer[LCD_HEIGHT];
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#else
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fb_data imgbuffer[LCD_HEIGHT];
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#endif
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#define REDRAW_NONE 0
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#define REDRAW_PARTIAL 1
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#define REDRAW_FULL 2
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PLUGIN_HEADER
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/* returns 1 if a button has been pressed, 0 otherwise */
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static int button_yield(void *ctx)
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{
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long *button = (long *)ctx;
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*button = rb->button_get(false);
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switch (*button)
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{
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case FRACTAL_QUIT:
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case FRACTAL_UP:
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case FRACTAL_DOWN:
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case FRACTAL_LEFT:
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case FRACTAL_RIGHT:
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case FRACTAL_ZOOM_IN:
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case FRACTAL_ZOOM_OUT:
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case FRACTAL_PRECISION_INC:
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case FRACTAL_PRECISION_DEC:
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case FRACTAL_RESET:
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#ifdef FRACTAL_ZOOM_IN2
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case FRACTAL_ZOOM_IN2:
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#endif
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#ifdef FRACTAL_ZOOM_IN_PRE
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case FRACTAL_ZOOM_IN_PRE:
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#endif
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return 1;
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default:
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*button = BUTTON_NONE;
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return 0;
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}
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}
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static void cleanup(void *parameter)
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{
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(void)parameter;
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#ifdef USEGSLIB
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grey_release();
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#endif
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}
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enum plugin_status plugin_start(const void* parameter)
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{
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long lastbutton = BUTTON_NONE;
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int redraw = REDRAW_FULL;
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struct fractal_ops *ops = &mandelbrot_ops;
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(void)parameter;
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#ifdef USEGSLIB
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/* get the remainder of the plugin buffer */
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gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
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/* initialize the greyscale buffer.*/
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if (!grey_init(gbuf, gbuf_size, GREY_ON_COP, LCD_WIDTH, LCD_HEIGHT, NULL))
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{
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rb->splash(HZ, "Couldn't init greyscale display");
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return 0;
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}
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grey_show(true); /* switch on greyscale overlay */
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#endif
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#if LCD_DEPTH > 1
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rb->lcd_set_backdrop(NULL);
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#endif
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ops->init();
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/* main loop */
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while (true)
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{
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long button = BUTTON_NONE;
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if (redraw != REDRAW_NONE)
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{
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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if (redraw == REDRAW_FULL)
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{
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MYLCD(clear_display)();
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MYLCD_UPDATE();
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rects_queue_init();
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}
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/* paint all rects */
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rects_calc_all(ops->calc, button_yield, (void *)&button);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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/* not interrupted by button press - screen is fully drawn */
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redraw = (button == BUTTON_NONE) ? REDRAW_NONE : REDRAW_PARTIAL;
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}
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if (button == BUTTON_NONE)
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button = rb->button_get(true);
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switch (button)
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{
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#ifdef FRACTAL_RC_QUIT
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case FRACTAL_RC_QUIT:
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#endif
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case FRACTAL_QUIT:
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#ifdef USEGSLIB
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grey_release();
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#endif
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return PLUGIN_OK;
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case FRACTAL_ZOOM_OUT:
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#ifdef FRACTAL_ZOOM_OUT_PRE
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if (lastbutton != FRACTAL_ZOOM_OUT_PRE)
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break;
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#endif
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ops->zoom(-1);
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redraw = REDRAW_FULL;
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break;
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case FRACTAL_ZOOM_IN:
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#ifdef FRACTAL_ZOOM_IN_PRE
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if (lastbutton != FRACTAL_ZOOM_IN_PRE)
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break;
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#endif
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#ifdef FRACTAL_ZOOM_IN2
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case FRACTAL_ZOOM_IN2:
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#endif
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ops->zoom(1);
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redraw = REDRAW_FULL;
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break;
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case FRACTAL_UP:
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ops->move(0, +1);
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MYXLCD(scroll_down)(LCD_SHIFT_Y);
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MYLCD_UPDATE();
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if (redraw != REDRAW_FULL)
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redraw = rects_move_down() ? REDRAW_FULL : REDRAW_PARTIAL;
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break;
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case FRACTAL_DOWN:
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ops->move(0, -1);
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MYXLCD(scroll_up)(LCD_SHIFT_Y);
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MYLCD_UPDATE();
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if (redraw != REDRAW_FULL)
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redraw = rects_move_up() ? REDRAW_FULL : REDRAW_PARTIAL;
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break;
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case FRACTAL_LEFT:
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ops->move(-1, 0);
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MYXLCD(scroll_right)(LCD_SHIFT_X);
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MYLCD_UPDATE();
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if (redraw != REDRAW_FULL)
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redraw = rects_move_right() ? REDRAW_FULL : REDRAW_PARTIAL;
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break;
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case FRACTAL_RIGHT:
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ops->move(+1, 0);
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MYXLCD(scroll_left)(LCD_SHIFT_X);
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MYLCD_UPDATE();
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if (redraw != REDRAW_FULL)
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redraw = rects_move_left() ? REDRAW_FULL : REDRAW_PARTIAL;
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break;
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case FRACTAL_PRECISION_DEC:
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#ifdef FRACTAL_PRECISION_DEC_PRE
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if (lastbutton != FRACTAL_PRECISION_DEC_PRE)
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break;
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#endif
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if (ops->precision(-1))
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redraw = REDRAW_FULL;
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break;
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case FRACTAL_PRECISION_INC:
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#ifdef FRACTAL_PRECISION_INC_PRE
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if (lastbutton != FRACTAL_PRECISION_INC_PRE)
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break;
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#endif
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if (ops->precision(+1))
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redraw = REDRAW_FULL;
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break;
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case FRACTAL_RESET:
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ops->init();
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redraw = REDRAW_FULL;
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break;
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default:
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if (rb->default_event_handler_ex(button, cleanup, NULL)
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== SYS_USB_CONNECTED)
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return PLUGIN_USB_CONNECTED;
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break;
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}
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if (button != BUTTON_NONE)
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lastbutton = button;
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}
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#ifdef USEGSLIB
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grey_release();
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#endif
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return PLUGIN_OK;
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}
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#endif
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