Apparat
http://apparat.googlecode.com/
Apparat is a framework to work with ABC, SWC and SWF files. You can use the core framework
to build scripted applications that modify the content of a SWF file or use any of the
predefined available tools.
All tools will show their usage information if you omit any parameters. Apparat tries to make
use of an advanced compression with 7-Zip. If Apparat can find 7-Zip on your PATH it will use
it to compress your content.
To test if 7-Zip is available you should simply enter "7z" on Windows or "7za" on Linux/OS X
in the command line.
- Apparat Shell
The shell is a tool to spawn Apparat only once and keep it running. Since it is a Java
application you will save JVM startup time and the overhead to allocate threadpools when
running Apparat.
The shell has been created to work asynchronous with multiple requests so any number
of applications and requests can run simoultaneously.
All predefined tools can be executed from the shell just like from the command line.
- Concrete
The Concrete tool allows you to speficy abstract methods and check at compile time
if they are overriden. To mark a method abstract you add the [Abstract] metadata to it.
When compiling your project you need to keep this metadata. This is done by specifying
"-keep-as3-metadata=Abstract" as a compiler argument.
Concrete takes one parameter "-i" which is the list of input files. You will need to include
all SWC or SWF files that have been used to compile this project. This means even for
a simple project you have to specify playerglobal.swc for instance since it is used to
compile your project.
To seperate multiple libraries use your systems path separator character. This is ";" on
Windows machines and ":" on Mac OS X or Linux.
Example (Windows):
concrete -i test.swf;C:\path\to\playerglobal.swc
Example (Linux/OS X):
concrete -i test.swf:/path/to/playerglobal.swc
- Coverage
With the Coverage tool you can insert coverage information into your code. Apparat assumes
that a class "apparat.coverage.Coverage" exists or is provided at runtime.
An example of the Coverage class can look like this:
package apparat.coverage {
public final class Coverage {
public static function onSample(file: String, line: int): void {
trace("Touched line", line, "in", file);
}
}
}
To run coverage you specify an input file with the "-i" parameter and an optional output file
with the "-o" parameter.
You can add multiple source-paths in the "-s" parameter. The tool will instrument only files
that are also on the source-path. Like the Concrete tool you can chain multiple paths with
the path separator of your operating system.
Example:
coverage -i input.swf -o output.swf -s C:\path\to\as3\source
- Dump
This tool can be used to generate detailed information of a given file.
Specify the input with the "-i" parameter. An optional directory can be given with the "-o"
parameter. Dump will output all files in this directory which is by default the directory
of the given input file.
If you speficy the "-swf" parameter the tag information of the file is exported. If you
speficy the "-uml" parameter a UML graph for the given file is generated in DOT format. This
format can be opened with OmniGraffle in OS X or you can transform it to an image or SVG
with Graphviz.
If you spefiy the "-abc" parameter, dump will output detailed ABC information. If "-abc" is
specified you can also change the way how methods are written. "-bc raw" will show raw bytes,
"-bc cfg" will output methods a s control flow graphs in DOT format. "-bc default" will use
Apparat's default bytecode representation.
- Reducer
You can use reducer for advanced compression of your SWF files. Reducer tries to compress
embedded PNG graphics. You can leverage this option also with the ActionScript compiler
by specifing "[Embed(src=..., compress=true)]". However to speedup compilation you can ignore
the compress parameter and let Reducer do the job since it makes use of multicore
architectures.
"-i" specifies the input file, "-o" an optional output file. "-q" specifies the JPEG
compression level. "-q 1.0" is maximum quality, "-q 0.0" is minimum quality. You will get
also good compression results for "-q 1.0". "-d" speficies the strength of the Flash Players
internal deblocking filter.
Example:
reducer -i input.swf -o output.swf -q 0.96
- Stripper
This tool removes all debug information from a SWF file. It is a type-safe removal keeping
side-effects. This means a loop like this
while(iter.hasNext) { trace(iter.next()) }
Would be rewritten like
while(iter.hasNext) { iter.next() }
Stripper removes also all debug releated bytecode.
Example:
stripper -i input.swf -o output.swf
stripper -i inputAndOutput.swc
- Turbo Diesel Sport Injection
The TDSI tool performs various bytecode transformations. Besides specific transformations the
application will always try to do certain peephole optimizations. Most of them will fix
problems with older ActionScript compiler versions.
-f [true|false]
If you specify the "-f" argument TDSI will try to fix certain problems with files generated
by the Alchemy compiler. This transformation will only affect code generated from C/C++
sources. This option defaults to false. The best way to optimize an Alchemy file with TDSI
is by calling "tdsi -i input.swc -o output.swc -f true -a false -e false -m false".
This transformation is by default turned off.
-a [true|false]
This option will inline Alchemy operations from ActionScript. If you use the Memory class
provided by the apparat-ersatz library those operations will be replaced with fast Alchemy
op codes. More information is available at http://code.google.com/p/apparat/wiki/MemoryPool
This transformation is by default turned on.
-e [true|false]
Perform inline expansion. If your class extends the apparat.inline.Inline class all its static
methods will be inlined when called. Those methods may not contain exceptions and must
be static.
This transformation is by default turned on.
-m [true|false]
Whether or not to enable macro expansion. Macros are like a type-safe copy and paste that
happens at compile time. More information is available here:
http://code.google.com/p/apparat/wiki/MemoryPool
Example:
Perform alchemy-, inline- and macroexpansion
tdsi -i input.swf -o output.swf
Optimize a SWC generated by Alchemy
tdsi -i input.swc -o output.swc -f true -a false -e false -m false
Optimize a SWC generated by Alchemy will all other features turned on
tdsi -i input.swc -o output.swc -f
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A framework to optmize ABC, SWC and SWF files.
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