forked from len0rd/rockbox
Fork of rockbox tailored for ipod classic
af35d19916
Some devices(1-bit / 2-bit displays) have packed bit formats that need to be unpacked in order to work on them at a pixel level. This caused a few issues on 1 & 2-bit devices: Greatly Oversized data arrays for bitmaps Improper handling of native image data Framebuffer data was near unusable without jumping through hoops Conversion between native addressing and per pixel addressing incurs extra overhead but it is much faster to do it on the 'C' side rather than in lua. Not to mention the advantage of a unified interface for the end programer ------------------------------------------------------------------- Adds a sane way to access each pixel of image data Adds: -------------------------------------------------------------------- img:clear([color],[x1],[y1],[x2],[y2]) (set whole image or a portion to a particular value) -------------------------------------------------------------------- img:invert([x1],[y1],[x2],[y2]) (inverts whole image or a portion) -------------------------------------------------------------------- img:marshal([x1],[y1],[x2],[y2],[funct]) (calls funct for each point defined by rect of x1,y1 x2,y2 returns value and allows setting value of each point return nil to terminate early) -------------------------------------------------------------------- img:points([x1],[y1],[x2],[y2],[dx],[dy]) (returns iterator function that steps delta-x and delta-y pixels each call returns value of pixel each call but doesn't allow setting to a new value compare to lua pairs method) -------------------------------------------------------------------- img:copy(src,[x1],[y1],[x2],[y2],[w],[h],[clip][operation][clr/funct]) (copies all or part of an image -- straight copy or special ops optionally calls funct for each point defined by rect of x1, y1, w, h and x2, y2, w, h for dest and src images returns value of dst and src and allows setting value of each point return nil to terminate early) -------------------------------------------------------------------- img:line(x1, y1, x2, y2, color) -------------------------------------------------------------------- img:ellipse(x1, y1, x2, y2, color, [fillcolor] -------------------------------------------------------------------- Fixed handling of 2-bit vertical integrated screens Added direct element access for saving / restoring native image etc. Added more data to tostring() handler and a way to access individual items Added equals method to see if two variables reference the same image address (doesn't check if two separate images contain the same 'picture') Optimized get and set routines Fixed out of bound x coord access shifting to next line Added lua include files to expose new functionality Finished image saving routine Static allocation of set_viewport struct faster + saves ram over dynamic Cleaned up code Fixed pixel get/set for 1/2 bit devices Fixed handling for 24-bit devices (32?) ------------------------------------------------------------------------- Example lua script to follow on forums ------------------------------------------------------------------------- Change-Id: I8a9ff0ff72aacf4b1662767ccb2b312fc355239c |
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|---|---|---|
| android | ||
| apps | ||
| backdrops | ||
| bootloader | ||
| debian | ||
| docs | ||
| firmware | ||
| flash | ||
| fonts | ||
| gdb | ||
| icons | ||
| lib | ||
| manual | ||
| packaging | ||
| rbutil | ||
| tools | ||
| uisimulator | ||
| utils | ||
| wps | ||
| .gitattributes | ||
| .gitignore | ||
__________ __ ___.
Open \______ \ ____ ____ | | _\_ |__ _______ ___
Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
\/ \/ \/ \/ \/
Build Your Own Rockbox
1. Clone 'rockbox' from git (or extract a downloaded archive).
$ git clone git://git.rockbox.org/rockbox
or
$ tar xjf rockbox.tar.bz2
2. Create a build directory, preferably in the same directory as the firmware/
and apps/ directories. This is where all generated files will be written.
$ cd rockbox
$ mkdir build
$ cd build
3. Make sure you have sh/arm/m68k-elf-gcc and siblings in the PATH. Make sure
that you have 'perl' in your PATH too. Your gcc cross compiler needs to be
a particular version depending on what player you are compiling for. These
can be acquired with the rockboxdev.sh script in the /tools/ folder of the
source, or will have been included if you've installed one of the
toolchains or development environments provided at http://www.rockbox.org/
$ which sh-elf-gcc
$ which perl
4. In your build directory, run the 'tools/configure' script and enter what
target you want to build for and if you want a debug version or not (and a
few more questions). It'll prompt you. The debug version is for making a
gdb version out of it. It is only useful if you run gdb towards your target
Archos.
$ ../tools/configure
5. *ploink*. Now you have got a Makefile generated for you.
6. Run 'make' and soon the necessary pieces from the firmware and the apps
directories have been compiled, linked and scrambled for you.
$ make
$ make zip
7. unzip the rockbox.zip on your music player, reboot it and
*smile*.
If you want to build for more than one target, just create several build
directories and create a setup for each target:
$ mkdir build-fmrecorder
$ cd build-fmrecorder
$ ../tools/configure
$ mkdir build-player
$ cd build-player
$ ../tools/configure
Questions anyone? Ask on the mailing list. We'll be happy to help you!