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rockbox/apps/plugins/test_viewports.c
Thomas Martitz cae4ae2c71 Second try: Introduce plugin_crt0.c that every plugin links. 
It handles exit() properly, calling the handler also when the plugin returns
normally (also make exit() more standard compliant while at it).
It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore.

To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it.
In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit().

In future plugin_crt0.c could also handle clearing bss, initializing iram and more.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
2010-08-24 14:30:46 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 Dave Chapman
*
* 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
#ifdef HAVE_LCD_COLOR
#define BGCOLOR_1 LCD_RGBPACK(255,255,0)
#define BGCOLOR_2 LCD_RGBPACK(0,255,0)
#define FGCOLOR_1 LCD_RGBPACK(0,0,255)
#elif LCD_DEPTH > 1
#define BGCOLOR_1 LCD_DARKGRAY
#define BGCOLOR_2 LCD_LIGHTGRAY
#define FGCOLOR_1 LCD_WHITE
#endif
static struct viewport vp0 =
{
.x = 0,
.y = 0,
.width = LCD_WIDTH,
.height = 20,
.font = FONT_UI,
.drawmode = DRMODE_SOLID,
#if LCD_DEPTH > 1
.fg_pattern = LCD_DEFAULT_FG,
.bg_pattern = BGCOLOR_1,
#endif
#ifdef HAVE_LCD_COLOR
.lss_pattern = LCD_DEFAULT_BG,
.lse_pattern = LCD_DEFAULT_BG,
.lst_pattern = LCD_DEFAULT_BG,
#endif
};
static struct viewport vp1 =
{
.x = LCD_WIDTH / 10,
.y = 20,
.width = LCD_WIDTH / 3,
.height = LCD_HEIGHT / 2,
.font = FONT_SYSFIXED,
.drawmode = DRMODE_SOLID,
#if LCD_DEPTH > 1
.fg_pattern = LCD_DEFAULT_FG,
.bg_pattern = LCD_DEFAULT_BG,
#ifdef HAVE_LCD_COLOR
.lss_pattern = LCD_DEFAULT_BG,
.lse_pattern = LCD_DEFAULT_BG,
.lst_pattern = LCD_DEFAULT_BG,
#endif
#endif
};
static struct viewport vp2 =
{
.x = LCD_WIDTH / 2,
.y = 40,
.width = LCD_WIDTH / 3,
.height = (LCD_HEIGHT / 2),
.font = FONT_UI,
.drawmode = DRMODE_SOLID,
#if LCD_DEPTH > 1
.fg_pattern = FGCOLOR_1,
.bg_pattern = BGCOLOR_2,
#ifdef HAVE_LCD_COLOR
.lss_pattern = LCD_DEFAULT_BG,
.lse_pattern = LCD_DEFAULT_BG,
.lst_pattern = LCD_DEFAULT_BG,
#endif
#endif
};
static struct viewport vp3 =
{
.x = LCD_WIDTH / 4,
.y = (5 * LCD_HEIGHT) / 8,
.width = LCD_WIDTH / 2,
.height = (LCD_HEIGHT / 4),
.font = FONT_SYSFIXED,
.drawmode = DRMODE_SOLID,
#if LCD_DEPTH > 1
.fg_pattern = LCD_BLACK,
.bg_pattern = LCD_WHITE,
#ifdef HAVE_LCD_COLOR
.lss_pattern = LCD_DEFAULT_BG,
.lse_pattern = LCD_DEFAULT_BG,
.lst_pattern = LCD_DEFAULT_BG,
#endif
#endif
};
#ifdef HAVE_REMOTE_LCD
static struct viewport rvp0 =
{
.x = 0,
.y = 10,
.width = LCD_REMOTE_WIDTH / 3,
.height = LCD_REMOTE_HEIGHT - 10,
.font = FONT_SYSFIXED,
.drawmode = DRMODE_SOLID,
#if LCD_REMOTE_DEPTH > 1
.fg_pattern = LCD_REMOTE_BLACK,
.bg_pattern = LCD_REMOTE_LIGHTGRAY,
#endif
};
static struct viewport rvp1 =
{
.x = LCD_REMOTE_WIDTH / 2,
.y = 0,
.width = LCD_REMOTE_WIDTH / 3,
.height = LCD_REMOTE_HEIGHT - 10,
.font = FONT_SYSFIXED,
.drawmode = DRMODE_SOLID,
#if LCD_REMOTE_DEPTH > 1
.fg_pattern = LCD_REMOTE_DEFAULT_FG,
.bg_pattern = LCD_REMOTE_DEFAULT_BG
#endif
};
#endif
enum plugin_status plugin_start(const void* parameter)
{
(void)parameter;
char buf[80];
int i,y;
rb->screens[SCREEN_MAIN]->set_viewport(&vp0);
rb->screens[SCREEN_MAIN]->clear_viewport();
rb->screens[SCREEN_MAIN]->puts_scroll(0,0,"Viewport testing plugin - this is a scrolling title");
rb->screens[SCREEN_MAIN]->set_viewport(&vp1);
rb->screens[SCREEN_MAIN]->clear_viewport();
for (i = 0 ; i < 3; i++)
{
rb->snprintf(buf,sizeof(buf),"Left text, scrolling_line %d",i);
rb->screens[SCREEN_MAIN]->puts_scroll(0,i,buf);
}
rb->screens[SCREEN_MAIN]->set_viewport(&vp2);
rb->screens[SCREEN_MAIN]->clear_viewport();
for (i = 1 ; i < 3; i++)
{
rb->snprintf(buf,sizeof(buf),"Right text, scrolling line %d",i);
rb->screens[SCREEN_MAIN]->puts_scroll(1,i,buf);
}
y = -10;
for (i = -10; i < vp2.width + 10; i += 5)
{
rb->screens[SCREEN_MAIN]->drawline(i, y, i, vp2.height - y);
}
rb->screens[SCREEN_MAIN]->set_viewport(&vp3);
rb->screens[SCREEN_MAIN]->clear_viewport();
for (i = 1 ; i < 2; i++)
{
rb->snprintf(buf,sizeof(buf),"Bottom text, a scrolling line %d",i);
rb->screens[SCREEN_MAIN]->puts_scroll(2,i,buf);
}
rb->screens[SCREEN_MAIN]->puts_scroll(4,i,"Short line");
rb->screens[SCREEN_MAIN]->update();
#ifdef HAVE_REMOTE_LCD
rb->screens[SCREEN_REMOTE]->set_viewport(&rvp0);
rb->screens[SCREEN_REMOTE]->clear_viewport();
for (i = 0 ; i < 5; i++)
{
rb->snprintf(buf,sizeof(buf),"Left text, scrolling_line %d",i);
rb->screens[SCREEN_REMOTE]->puts_scroll(0,i,buf);
}
rb->screens[SCREEN_REMOTE]->puts(1,i,"Static");
rb->screens[SCREEN_REMOTE]->set_viewport(&rvp1);
rb->screens[SCREEN_REMOTE]->clear_viewport();
for (i = 1 ; i < 3; i++)
{
rb->snprintf(buf,sizeof(buf),"Right text, scrolling line %d",i);
rb->screens[SCREEN_REMOTE]->puts_scroll(1,i,buf);
}
y = -10;
for (i = -10; i < rvp1.width + 10; i += 5)
{
rb->screens[SCREEN_REMOTE]->drawline(i, y, i, rvp1.height - y);
}
rb->screens[SCREEN_REMOTE]->update();
#endif
rb->button_get(true);
/* Restore the default viewport */
rb->screens[SCREEN_MAIN]->set_viewport(NULL);
#ifdef HAVE_REMOTE_LCD
rb->screens[SCREEN_REMOTE]->set_viewport(NULL);
#endif
return PLUGIN_OK;
}
#else
/* Charcell version of plugin */
static struct viewport vp0 =
{
.x = 0,
.y = 0,
.width = 5,
.height = 1,
};
static struct viewport vp1 =
{
.x = 6,
.y = 0,
.width = 5,
.height = 1,
};
static struct viewport vp2 =
{
.x = 0,
.y = 1,
.width = LCD_WIDTH,
.height = 1,
};
enum plugin_status plugin_start(const void* parameter)
{
(void)parameter;
rb->screens[SCREEN_MAIN]->set_viewport(&vp0);
rb->screens[SCREEN_MAIN]->clear_viewport();
rb->screens[SCREEN_MAIN]->puts_scroll(0,0,"Rockbox");
rb->screens[SCREEN_MAIN]->set_viewport(&vp1);
rb->screens[SCREEN_MAIN]->clear_viewport();
rb->screens[SCREEN_MAIN]->puts_scroll(0,0,"Viewports");
rb->screens[SCREEN_MAIN]->set_viewport(&vp2);
rb->screens[SCREEN_MAIN]->clear_viewport();
rb->screens[SCREEN_MAIN]->puts_scroll(0,0,"Demonstration");
rb->screens[SCREEN_MAIN]->update();
rb->button_get(true);
/* Restore the default viewport */
rb->screens[SCREEN_MAIN]->set_viewport(NULL);
return PLUGIN_OK;
}
#endif /* !HAVE_LCD_BITMAP */
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