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authorDominik Wenger <domonoky@googlemail.com>2008-05-10 17:53:15 +0000
committerDominik Wenger <domonoky@googlemail.com>2008-05-10 17:53:15 +0000
commitacccee479a2e0ef1b373c7de85a70abb816682c3 (patch)
tree0f52f57d05188226721ff0b96850a1319df5a5ec /apps/plugins/mpegplayer/decode.c
parent251db062949edf0adb89ae609a53919d9a348e6e (diff)
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rbutil: Detect if Rockbox is already installed, and allow Backup bevor installing a new build.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17440 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/mpegplayer/decode.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.1 at 2026-04-30 17:08:58 +0000
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--[[
             __________               __   ___.
   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
                     \/            \/     \/    \/            \/
 $Id$

 Example Lua script

 Copyright (C) 2009 by Maurus Cuelenaere

 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.

]]--

require("actions")   -- Contains rb.actions & rb.contexts
--require("buttons") -- Contains rb.buttons; not needed in this example

-- Example function which splashes a message for x seconds
function sayhello(seconds)
    local message = string.format("Hello world from LUA for %d seconds", seconds)
    rb.splash(seconds * rb.HZ, message)
end

-- Helper function which draws a (transparent) image at the center of the screen
function draw_image(img)
    local x, y = (rb.LCD_WIDTH - img:width()) / 2, (rb.LCD_HEIGHT - img:height()) / 2

    local func = rb.lcd_bitmap_transparent_part
              or rb.lcd_bitmap_part      -- Fallback version for grayscale targets
              or rb.lcd_mono_bitmap_part -- Fallback version for mono targets

    func(img, 0, 0, img:width(), x, y, img:width(), img:height())
    rb.lcd_update()
end

-- Helper function that acts like a normal printf() would do
local line = 0
function printf(...)
    local msg = string.format(...)
    local res, w, h = rb.font_getstringsize(msg, rb.FONT_UI)

    if(w >= rb.LCD_WIDTH) then
        rb.lcd_puts_scroll(0, line, msg)
    else
        rb.lcd_puts(0, line, msg)
    end
    rb.lcd_update()

    line = line + 1

    if(h * line >= rb.LCD_HEIGHT) then
        line = 0
    end
end

-- Helper function which reads the contents of a file
function file_get_contents(filename)
    local file = io.open(filename, "r")
    if not file then
        return nil
    end

    local contents = file:read("*all") -- See Lua manual for more information
    file:close() -- GC takes care of this if you would've forgotten it

    return contents
end

-- Helper function which saves contents to a file
function file_put_contents(filename, contents)
    local file = io.open(filename, "w+") -- See Lua manual for more information
    if not file then
        return false
    end

    local ret = file:write(contents) == true
    file:close() -- GC takes care of this if you would've forgotten it
    return ret
end

-- Clear the screen
rb.lcd_clear_display()

-- Draw an X on the screen
rb.lcd_drawline(0, 0, rb.LCD_WIDTH, rb.LCD_HEIGHT)
rb.lcd_drawline(rb.LCD_WIDTH, 0, 0, rb.LCD_HEIGHT)

if(rb.lcd_rgbpack ~= nil) then -- Only do this when we're on a color target, i.e. when LCD_RGBPACK is available
    local rectangle = rb.new_image(10, 15) -- Create a new image with width 10 and height 15
    for i=1, 10 do
        for j=1, 15 do