Adobe Alchemy compiled SWC - not sure how to compile library for FlasCC

Question

I'm trying to get game-music-emu-flash working with FlasCC. It uses the C/C++ Game_Music_Emu library and was originally compiled with Alchemy, but I want to see if there is a performance increase with FlasCC. I'd like to use SWIG with typemaps to call the library since the current project ActionScript is not compatible with FlasCC. I'm following code from the samples. I haven't coded the typemaps yet but for now I created swig.i as
#ifdef SWIG
%module libgmeLibModule
#include "gme/gme.h"
%include "gme/gme.h"
#else
#include "gme/gme.h"
#endif
and the Makefile follows the samples closely by replacing what's needed to match. During compilation I'm getting similar errors all in the form
libgmeLib_wrapper.cpp: In function `void _wrap_gme_ay_type_get()':
libgmeLib_wrapper.cpp:2575: error: invalid conversion from `const void*' to `void*'
libgmeLib_wrapper.cpp:2575: error:   initializing argument 1 of `void* memcpy(void*, const void*, size_t)'
Compiling with
"$(FLASCC)/usr/bin/g++" $(BASE_CFLAGS) -04 gmemain.cpp gme/*.cpp -emit-swc=sample.libgme -o libgme.swc
in the Makefile by itself under all: compiles without errors.
I don't know C++ that well so any help is appreciated. Also would using SWIG and typemaps be the way to go or would manually wrapping make sense? I thought SWIG would be better since gme is a decent sized library.

Answer 1

Hi Matt,
Thank you very much for taking the time to code a demo. However I can't get it to fully build. By the way I am using FlasCC on Windows 7 64-bit and therefore Cygwin. Hopefully I can attempt to build it on a Mac sometime soon. Or can I compile this on Linux?
Anyway I modified your Makefile with Windows paths since I was getting the error
Error: Unable to access jarfile /cygdrive/c/FlasCC_1.0.0/sdk/usr/lib/asc2.jar
Makefile:6: recipe for target `all' failed
make: *** [all] Error 1
So my Makefile now looks like
#Set these to the paths to your FlasCC and Flex installs
flascc=/cygdrive/c/FlasCC_1.0.0/sdk
flex=/cygdrive/c/flex_sdk_4.6
all:
          $(flascc)/usr/bin/swig -as3 gme.i
          $(flascc)/usr/bin/genfs --type=embed testfiles testfs
          java -jar C:\\FlasCC_1.0.0\\sdk\\usr\\lib\\asc2.jar -merge -md -import \
                    C:\\FlasCC_1.0.0\\sdk\\usr\\lib\\InMemoryBackingStore.abc \
                    -import C:\\FlasCC_1.0.0\\sdk\\usr\\lib\\builtin.abc \
                    -import C:\\FlasCC_1.0.0\\sdk\\usr\\lib\\playerglobal.abc \
                    -import C:\\FlasCC_1.0.0\\sdk\\usr\\lib\\BinaryData.abc \
                    testfs*.as
          $(flascc)/usr/bin/g++ gme_wrap.c gme/*.cpp libgme.as testfs*.abc \
                    main.cpp demo/Wave_Writer.cpp -emit-swc=sample.libgme -o libgme.swc
          rm -f libgme.as
          $(flex)/bin/mxmlc -static-link-runtime-shared-libraries \
                    -compiler.omit-trace-statements=false -library-path=libgme.swc \
                    -debug=false demo.as -o demo.swf
clean:
          rm -f libgme.swc gme_wrap.c gme_wrap.o libgme.as demo.swf testfs* \
With this Makefile I now get the error
Error: Failed to execute compiler: Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Failed to run '/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/bin/avm2-as'
Makefile:6: recipe for target `all' failed
make: *** [all] Error 1
I tried -jvmopt="-XX:MaxPermSize=1400M" for g++ and it seems to run a little longer but I eventually get the same error. If I set -jvmopt="-Xmx=1G" (or any other value than 1G) I get errors in the form
cc1plus: error in backend: Failed to run /cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/bin/llc with args: -jvm=C:\Windo
ws\system32\java -filetype=obj C:\FlasCC_1.0.0\cygwin\tmp\ccXrLALC.o -o C:\FlasCC_1.0.0\cygwin\tmp\ccXrLALC.o -jvmopt -X
mx=1G -target-player
Error:
LLVM ERROR: Error: Unable to launch the Java Virtual Machine.
This usually means you have a 32bit JVM installed or have set your Java heap size too large.
Try lowering the Java heap size by passing "-jvmopt=-Xmx1G" to gcc/g++.
Stack dump:
0.      Program arguments: C:\FlasCC_1.0.0\sdk\usr\bin\llc.exe -jvm=C:\Windows\system32\java -filetype=obj C:\FlasCC_1.0
.0\cygwin\tmp\ccXrLALC.o -o C:\FlasCC_1.0.0\cygwin\tmp\ccXrLALC.o -jvmopt -Xmx=1G -target-player
1.      Running pass 'Function Pass Manager' on module 'C:\FlasCC_1.0.0\cygwin\tmp\ccXrLALC.o'.
The files created previous to the g++ call are gme_wrap.c, libgme.as, testfs.rules, testfs_000000.as, testfs_000001.as, and testfs_000001.abc. All the FlasCC samples on my machine build fine. I first had Java 32-bit JRE installed then installed the Java 64-bit JDK. I also have 8GB of RAM. Any help help is always appreciated.
In the meantime I will try to update the code using as3sig since that seems to be the closest to the Alchemy code.
I just ran g++ -v in the Makefile and got
#include "..." search starts here:
#include <...> search starts here:
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/avm2-unknown-freebsd8/4.2.1/include
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/avm2-unknown-freebsd8/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/backward/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include
End of search list.
GNU C++ version 4.2.1 for Adobe AVM2 (Based on Apple Inc. build 5658) (LLVM build) (avm2-unknown-freebsd8)
        compiled by GNU C version 4.5.3.
GGC heuristics: --param ggc-min-expand=150 --param ggc-min-heapsize=131072
Compiler executable checksum: c7f78fda8142a72c14ad9ea52e954536
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/cc1plus.exe -quiet -v -iprefix /cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/
avm2-unknown-freebsd8/4.2.1/ gme/Ym2612_Emu.cpp -o /tmp/ccNDkxvI.o -swf-version-internal=18 -jvmopt=-Xmx1500M -target-pl
ayer -quiet -dumpbase Ym2612_Emu.cpp -auxbase Ym2612_Emu -version
ignoring nonexistent directory "/Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/workspace/alchemy/build/win/sdkoverlay/usr/
lib/gcc/avm2-unknown-freebsd8/4.2.1/include"
ignoring nonexistent directory "/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/w
orkspace/alchemy/build/win/sdkoverlay/usr/lib/gcc/avm2-unknown-freebsd8/4.2.1/../../../../ avm2-unknown-freebsd8/include"
#include "..." search starts here:
#include <...> search starts here:
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/avm2-unknown-freebsd8/4.2.1/include
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/avm2-unknown-freebsd8/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/backward/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include
End of search list.
GNU C++ version 4.2.1 for Adobe AVM2 (Based on Apple Inc. build 5658) (LLVM build) (avm2-unknown-freebsd8)
        compiled by GNU C version 4.5.3.
GGC heuristics: --param ggc-min-expand=150 --param ggc-min-heapsize=131072
Compiler executable checksum: c7f78fda8142a72c14ad9ea52e954536
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/as.exe -o /tmp/ccuF6LPQ.o libgme.as -target-player
Error: Failed to execute compiler: Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Failed to run '/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/bin/avm2-as'
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/cc1plus.exe -quiet -v -iprefix /cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/
avm2-unknown-freebsd8/4.2.1/ main.cpp -o /tmp/ccgyfB8y.o -swf-version-internal=18 -jvmopt=-Xmx1500M -target-player -quie
t -dumpbase main.cpp -auxbase main -version
ignoring nonexistent directory "/Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/workspace/alchemy/build/win/sdkoverlay/usr/
lib/gcc/avm2-unknown-freebsd8/4.2.1/include"
ignoring nonexistent directory "/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/w
orkspace/alchemy/build/win/sdkoverlay/usr/lib/gcc/avm2-unknown-freebsd8/4.2.1/../../../../ avm2-unknown-freebsd8/include"
#include "..." search starts here:
#include <...> search starts here:
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/avm2-unknown-freebsd8/4.2.1/include
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/avm2-unknown-freebsd8/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include/c++/4.2.1/backward/
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/include
End of search list.
GNU C++ version 4.2.1 for Adobe AVM2 (Based on Apple Inc. build 5658) (LLVM build) (avm2-unknown-freebsd8)
        compiled by GNU C version 4.5.3.
GGC heuristics: --param ggc-min-expand=150 --param ggc-min-heapsize=131072
Compiler executable checksum: c7f78fda8142a72c14ad9ea52e954536
/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/cc1plus.exe -quiet -v -iprefix /cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../usr/lib/
avm2-unknown-freebsd8/4.2.1/ demo/Wave_Writer.cpp -o /tmp/ccm2vW5Q.o -swf-version-internal=18 -jvmopt=-Xmx1500M -target-
player -quiet -dumpbase Wave_Writer.cpp -auxbase Wave_Writer -version
ignoring nonexistent directory "/Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/workspace/alchemy/build/win/sdkoverlay/usr/
lib/gcc/avm2-unknown-freebsd8/4.2.1/include"
ignoring nonexistent directory "/cygdrive/c/FlasCC_1.0.0/sdk/usr/bin/../../Users/Shared/Jenkins/Home/jobs/Alchemy2_OSX/w
orkspace/alchemy/build/win/sdkoverlay/usr/lib/gcc/avm2-unknown-freebsd8/4.2.1/../../../../ avm2-unknown-freebsd8/include"
So it gets fairly far... but who is Jenkins? I assume that's not you since it's coded into 12 files of the FlasCC SDK. Weird.
EDIT: I just realized Jenkins is a piece of software not a user or developer who coded their paths into FlasCC.
EDIT2: It builds on Mac! I don't see out.wav being output but code complete functions show up for the library libgme in Flash Builder. I'll try to write some code to output audio to the Flash sound buffer.
EDIT3: I was able to save out.wav with a ByteArray, a FileReference save dialog and a wav format header function. I forgot Flash doesn't really allow for writing files directly to a local disk. I was also able to playback sound within the swf much like game-music-emu-flash. Still no luck with getting it to build on Cygwin though.