/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Gilles Roux
* 2003 Garrett Derner
* 2010 Yoshihisa Uchida
*
* 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/pluginlib_exit.h"
#include "tv_action.h"
#include "tv_button.h"
#include "tv_preferences.h"
enum plugin_status plugin_start(const void* file)
{
int button;
#if defined(TV_AUTOSCROLL_PRE)
int lastbutton = BUTTON_NONE;
#endif
bool autoscroll = false;
long old_tick;
bool done = false;
bool display_update = true;
size_t size;
unsigned char *plugin_buf;
old_tick = *rb->current_tick;
if (!file)
return PLUGIN_ERROR;
/* get the plugin buffer */
plugin_buf = rb->plugin_get_buffer(&size);
if (!tv_init_action(&plugin_buf, &size)) {
rb->splash(HZ, "Error initialize");
return PLUGIN_ERROR;
}
if (!tv_load_file(file)) {
rb->splash(HZ, "Error opening file");
return PLUGIN_ERROR;
}
atexit(tv_exit);
while (!done) {
#ifdef HAVE_LCD_BITMAP
if (preferences->statusbar)
rb->send_event(GUI_EVENT_ACTIONUPDATE, NULL);
#endif
if (display_update)
tv_draw();
display_update = true;
button = rb->button_get_w_tmo(HZ/10);
switch (button) {
case TV_MENU:
#ifdef TV_MENU2
case TV_MENU2:
#endif
{
unsigned res = tv_menu();
if (res != TV_MENU_RESULT_EXIT_MENU)
{
if (res == TV_MENU_RESULT_ATTACHED_USB)
return PLUGIN_USB_CONNECTED;
else if (res == TV_MENU_RESULT_ERROR)
return PLUGIN_ERROR;
else
done = true;
}
}
break;
case TV_AUTOSCROLL:
#ifdef TV_AUTOSCROLL_PRE
if (lastbutton != TV_AUTOSCROLL_PRE)
break;
#endif
autoscroll = !autoscroll;
break;
case TV_SCROLL_UP:
case TV_SCROLL_UP | BUTTON_REPEAT:
#ifdef TV_SCROLL_UP2
case TV_SCROLL_UP2:
case TV_SCROLL_UP2 | BUTTON_REPEAT:
#endif
tv_scroll_up(TV_VERTICAL_SCROLL_PREFS);
old_tick = *rb->current_tick;
break;
case TV_SCROLL_DOWN:
case TV_SCROLL_DOWN | BUTTON_REPEAT:
#ifdef TV_PAGE_DOWN2
case TV_SCROLL_DOWN2:
case TV_SCROLL_DOWN2 | BUTTON_REPEAT:
#endif
tv_scroll_down(TV_VERTICAL_SCROLL_PREFS);
old_tick = *rb->current_tick;
break;
case TV_SCREEN_LEFT:
case TV_SCREEN_LEFT | BUTTON_REPEAT:
if (preferences->windows > 1)
{
/* Screen left */
tv_scroll_left(TV_HORIZONTAL_SCROLL_PREFS);
}
else { /* prefs->windows == 1 */
if (preferences->narrow_mode == NM_PAGE)
{
/* scroll to previous page */
tv_scroll_up(TV_VERTICAL_SCROLL_PAGE);
}
else
{
/* Top of file */
tv_top();
}
}
break;
case TV_SCREEN_RIGHT:
case TV_SCREEN_RIGHT | BUTTON_REPEAT:
if (preferences->windows > 1)
{
/* Screen right */
tv_scroll_right(TV_HORIZONTAL_SCROLL_PREFS);
}
else { /* prefs->windows == 1 */
if (preferences->narrow_mode == NM_PAGE)
{
/* scroll to next page */
tv_scroll_down(TV_VERTICAL_SCROLL_PAGE);
}
else
{
/* Bottom of file */
tv_bottom();
}
}
break;
#ifdef TV_LINE_UP
case TV_LINE_UP:
case TV_LINE_UP | BUTTON_REPEAT:
/* Scroll up one line */
tv_scroll_up(TV_VERTICAL_SCROLL_LINE);
old_tick = *rb->current_tick;
break;
case TV_LINE_DOWN:
case TV_LINE_DOWN | BUTTON_REPEAT:
/* Scroll down one line */
tv_scroll_down(TV_VERTICAL_SCROLL_LINE);
old_tick = *rb->current_tick;
break;
#endif
#ifdef TV_COLUMN_LEFT
case TV_COLUMN_LEFT:
case TV_COLUMN_LEFT | BUTTON_REPEAT:
/* Scroll left one column */
tv_scroll_left(TV_HORIZONTAL_SCROLL_COLUMN);
break;
case TV_COLUMN_RIGHT:
case TV_COLUMN_RIGHT | BUTTON_REPEAT:
/* Scroll right one column */
tv_scroll_right(TV_HORIZONTAL_SCROLL_COLUMN);
break;
#endif
#ifdef TV_RC_QUIT
case TV_RC_QUIT:
#endif
case TV_QUIT:
#ifdef TV_QUIT2
case TV_QUIT2:
#endif
done = true;
break;
case TV_BOOKMARK:
tv_add_or_remove_bookmark();
break;
default:
exit_on_usb(button);
display_update = false;
break;
}
if (button != BUTTON_NONE)
{
#if defined(TV_AUTOSCROLL_PRE)
lastbutton = button;
#endif
rb->yield();
}
if (autoscroll)
{
if(old_tick <= *rb->current_tick - (110 - preferences->autoscroll_speed * 10))
{
tv_scroll_down(TV_VERTICAL_SCROLL_PREFS);
old_tick = *rb->current_tick;
display_update = true;
}
}
}
return PLUGIN_OK;
}
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/*
** $Id$
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
#ifndef lopcodes_h
#define lopcodes_h
#include "llimits.h"
/*===========================================================================
We assume that instructions are unsigned numbers.
All instructions have an opcode in the first 6 bits.
Instructions can have the following fields:
`A' : 8 bits
`B' : 9 bits
`C' : 9 bits
`Bx' : 18 bits (`B' and `C' together)
`sBx' : signed Bx
A signed argument is represented in excess K; that is, the number
value is the unsigned value minus K. K is exactly the maximum value
for that argument (so that -max is represented by 0, and +max is
represented by 2*max), which is half the maximum for the corresponding
unsigned argument.
===========================================================================*/
enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
/*
** size and position of opcode arguments.
*/
#define SIZE_C 9
#define SIZE_B 9
#define SIZE_Bx (SIZE_C + SIZE_B)
#define SIZE_A 8
#define SIZE_OP 6
#define POS_OP 0
#define POS_A (POS_OP + SIZE_OP)
#define POS_C (POS_A + SIZE_A)
#define POS_B (POS_C + SIZE_C)
#define POS_Bx POS_C
/*
** limits for opcode arguments.
** we use (signed) int to manipulate most arguments,
** so they must fit in LUAI_BITSINT-1 bits (-1 for sign)
*/
#if SIZE_Bx < LUAI_BITSINT-1
#define MAXARG_Bx ((1<<SIZE_Bx)-1)
#define MAXARG_sBx (MAXARG_Bx>>1) /* `sBx' is signed */
#else
#define MAXARG_Bx MAX_INT
#define MAXARG_sBx MAX_INT
#endif
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