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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 Matthias Wientapper
* Heavily extended 2005 Jens Arnold
* Extended 2009 Tomer Shalev
*
*
* 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"
#ifdef HAVE_LCD_BITMAP
#include "fractal.h"
#include "fractal_rect.h"
#include "fractal_sets.h"
#include "mandelbrot_set.h"
#ifdef USEGSLIB
#define MYLCD(fn) grey_ub_ ## fn
#define MYLCD_UPDATE()
#define MYXLCD(fn) grey_ub_ ## fn
#else
#define MYLCD(fn) rb->lcd_ ## fn
#define MYLCD_UPDATE() rb->lcd_update();
#define MYXLCD(fn) xlcd_ ## fn
#endif
#ifdef USEGSLIB
GREY_INFO_STRUCT
static unsigned char *gbuf;
static size_t gbuf_size = 0;
#endif
#define REDRAW_NONE 0
#define REDRAW_PARTIAL 1
#define REDRAW_FULL 2
PLUGIN_HEADER
/* returns 1 if a button has been pressed, 0 otherwise */
static int button_yield(void *ctx)
{
long *button = (long *)ctx;
*button = rb->button_get(false);
switch (*button)
{
case FRACTAL_QUIT:
case FRACTAL_UP:
case FRACTAL_DOWN:
case FRACTAL_LEFT:
case FRACTAL_RIGHT:
case FRACTAL_ZOOM_IN:
case FRACTAL_ZOOM_OUT:
case FRACTAL_PRECISION_INC:
case FRACTAL_PRECISION_DEC:
case FRACTAL_RESET:
#ifdef FRACTAL_ZOOM_IN2
case FRACTAL_ZOOM_IN2:
#endif
#ifdef FRACTAL_ZOOM_IN_PRE
case FRACTAL_ZOOM_IN_PRE:
#endif
#ifdef FRACTAL_ZOOM_OUT_PRE
case FRACTAL_ZOOM_OUT_PRE:
#endif
return 1;
default:
*button = BUTTON_NONE;
return 0;
}
}
static void cleanup(void *parameter)
{
(void)parameter;
#ifdef USEGSLIB
grey_release();
#endif
}
enum plugin_status plugin_start(const void* parameter)
{
long lastbutton = BUTTON_NONE;
int redraw = REDRAW_FULL;
struct fractal_ops *ops = &mandelbrot_ops;
(void)parameter;
#ifdef USEGSLIB
/* get the remainder of the plugin buffer */
gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
/* initialize the greyscale buffer.*/
if (!grey_init(gbuf, gbuf_size, GREY_ON_COP, LCD_WIDTH, LCD_HEIGHT, NULL))
{
rb->splash(HZ, "Couldn't init greyscale display");
return 0;
}
grey_show(true); /* switch on greyscale overlay */
#endif
#if LCD_DEPTH > 1
rb->lcd_set_backdrop(NULL);
#endif
ops->init();
/* main loop */
while (true)
{
long button = BUTTON_NONE;
if (redraw != REDRAW_NONE)
{
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(true);
#endif
if (redraw == REDRAW_FULL)
{
MYLCD(clear_display)();
MYLCD_UPDATE();
rects_queue_init();
}
/* paint all rects */
rects_calc_all(ops->calc, button_yield, (void *)&button);
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
/* not interrupted by button press - screen is fully drawn */
redraw = (button == BUTTON_NONE) ? REDRAW_NONE : REDRAW_PARTIAL;
}
if (button == BUTTON_NONE)
button = rb->button_get(true);
switch (button)
{
#ifdef FRACTAL_RC_QUIT
case FRACTAL_RC_QUIT:
#endif
case FRACTAL_QUIT:
#ifdef USEGSLIB
grey_release();
#endif
return PLUGIN_OK;
case FRACTAL_ZOOM_OUT:
#ifdef FRACTAL_ZOOM_OUT_PRE
if (lastbutton != FRACTAL_ZOOM_OUT_PRE)
break;
#endif
ops->zoom(-1);
redraw = REDRAW_FULL;
break;
case FRACTAL_ZOOM_IN:
#ifdef FRACTAL_ZOOM_IN_PRE
if (lastbutton != FRACTAL_ZOOM_IN_PRE)
break;
#endif
#ifdef FRACTAL_ZOOM_IN2
case FRACTAL_ZOOM_IN2:
#endif
ops->zoom(1);
redraw = REDRAW_FULL;
break;
case FRACTAL_UP:
ops->move(0, +1);
MYXLCD(scroll_down)(LCD_SHIFT_Y);
MYLCD_UPDATE();
if (redraw != REDRAW_FULL)
redraw = rects_move_down() ? REDRAW_FULL : REDRAW_PARTIAL;
break;
case FRACTAL_DOWN:
ops->move(0, -1);
MYXLCD(scroll_up)(LCD_SHIFT_Y);
MYLCD_UPDATE();
if (redraw != REDRAW_FULL)
redraw = rects_move_up() ? REDRAW_FULL : REDRAW_PARTIAL;
break;
case FRACTAL_LEFT:
ops->move(-1, 0);
MYXLCD(scroll_right)(LCD_SHIFT_X);
MYLCD_UPDATE();
if (redraw != REDRAW_FULL)
redraw = rects_move_right() ? REDRAW_FULL : REDRAW_PARTIAL;
break;
case FRACTAL_RIGHT:
ops->move(+1, 0);
MYXLCD(scroll_left)(LCD_SHIFT_X);
MYLCD_UPDATE();
if (redraw != REDRAW_FULL)
redraw = rects_move_left() ? REDRAW_FULL : REDRAW_PARTIAL;
break;
case FRACTAL_PRECISION_DEC:
#ifdef FRACTAL_PRECISION_DEC_PRE
if (lastbutton != FRACTAL_PRECISION_DEC_PRE)
break;
#endif
if (ops->precision(-1))
redraw = REDRAW_FULL;
break;
case FRACTAL_PRECISION_INC:
#ifdef FRACTAL_PRECISION_INC_PRE
if (lastbutton != FRACTAL_PRECISION_INC_PRE)
break;
#endif
if (ops->precision(+1))
redraw = REDRAW_FULL;
break;
case FRACTAL_RESET:
ops->init();
redraw = REDRAW_FULL;
break;
default:
if (rb->default_event_handler_ex(button, cleanup, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
break;
}
if (button != BUTTON_NONE)
lastbutton = button;
}
#ifdef USEGSLIB
grey_release();
#endif
return PLUGIN_OK;
}
#endif
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