+----------------+
| mViewer GX 1.1 |
+----------------+


Introduction:
------------

mViewer GX Edition is an image reader to be used with the following Casio calculators :
- Graph 35+USB / fx-9750GII
- Graph 75 / fx-9860GII
- Graph 85 / fx-9860G
- Graph 85 SD / fx-9860G SD
- Graph 95 / fx-9860GII SD
- fx-9860G Slim
- fx-9860Gs
- fx-9860G AU
- fx-9860G AU+

Features:
--------

- browsing the whole Nspire file system
- scrolling
- zoom out/in
- setting brightness or contrast
- opening BMP images


Installation:
------------
Depending upon your calculator CPU, send the matching file :
- mviewsh3.g1a (for SH3 CPU)
- mviewsh4.g1a (for SH4 CPU)


Browser controls:
----------------

- change selected file/folder:
	* arrow up/down keys

- validate selection (browse selected folder or open selected file):
	* enter key

- browse parent folder:
	* arrow left key


Viewer controls:
---------------

- progressive scroll of image:
	* arrow up/down/right/left keys
	* numeric 1/2/3/4/6/7/8/9 keys

- immediate scroll of the full screen width/height:
	* numeric 5 key + arrow up/down/right/left keys
	* numeric 1/2/3/4/6/7/8/9 keys

- next/previous image by alphabetical order in the current folder:
	* "(" / ")"

- exit the viewer and return to the browser:
	* esc key

- increase contrast:
	* "+" key

- decrease contrast:
	* "-" key

- progressive zoom in:
	* "*" key
	* numeric 5 key
	* click key

- progressive zoom out:
	* "/" key


Usage:
-----

You need to send some images in any folder.



Supported image formats:
-----------------------
* Type: BMP
	- RGB, indexed palette
	- 1, 2, 3, 8, 16, 24, 32-bits
	- none, RLE-compression, bitfield
	- with or without alpha transparency

If you get an image which is not displayed correctly, please send it to me.


Recommanded format:
------------------

  - BMP 1-bit indexed uncompressed

Although all above formats are supported, it is totally useless:
- to have more than 2-bits

Such files will be opened of course,
but you'll just be wasting memory space with partially useless data.


Licence:
-------
GPL v2.0


Authors:
-------

Xavier Andreani: main code 

with the help of:

* PierrotLL: explorer + initial display code


Future versions:
---------------

* Support for RLE-compressed BMP (code included but untested)
* Grayscale on SH4 calculators

Thanks:
------

- Planet Casio for technical informations and help


Known bugs:
----------
- Grayscale doesn't work on SH4 calculators -> use only 1-bit BMP


Versions history:
----------------

1.0	(17/02/2015):
* initial release



Xavier Andréani
andreanx@hotmail.com