[Vm-dev] Fwd: [Pharo-project] New Pharo based on core 10309 with antialiased fonts

Andreas Raab andreas.raab at gmx.de
Wed May 20 06:29:04 UTC 2009


David T. Lewis wrote:
> I don't really know the background on this, but assuming that this is
> an incremental change to BitBltSimulation, and that the changes are
> MIT licensed, and also that they are in need of a home, then adding them
> to the VMMaker package would be the right thing to do.
> 
> Andreas should have veto rights, as I believe that he is the author
> of BitBltSimulation.

The original author of BBSim is of course Dan. My only question about 
these changes is that I'm not sure what they're actually doing - it 
looks like rgbMul:with: except that it's been unrolled for various 
cases. Does anyone know what these changes are supposed to be doing, 
where they are used, and why rgbMul:with: is not sufficient?

Cheers,
   - Andreas

> I did a quick smoke test on a 64-bit Linux. I get a working VM but also
> some compiler warnings associated with the new changes. I can't say if
> there are functional issues, but I note that warnings about cast from
> pointer to integer are usually associated with VM crashes on a 64-bit
> platform, so this might be a problem.
> 
> - Dave
> 
> Output from a compile on Linux 64 bit:
> 
> gcc -g -O2 -DLSB_FIRST=1  -DHAVE_CONFIG_H  -DSQUEAK_BUILTIN_PLUGIN -I/home/lewis/squeak/VMM/build32 -I/home/lewis/squeak/VMM/platforms/unix/vm -I/home/lewis/squeak/VMM/platforms/Cross/vm -I/home/lewis/squeak/VMM/src/vm    -c -o BitBltPlugin.o /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘copyLoop’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:1556: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘copyLoopNoSource’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:1728: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘copyLoopPixMap’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:1840: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘loadSurfacePlugin’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3064: warning: assignment makes integer from pointer without a cast
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3065: warning: assignment makes integer from pointer without a cast
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3066: warning: assignment makes integer from pointer without a cast
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘lockSurfaces’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3123: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3159: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘mergewith’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3202: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘partitionedRgbComponentAlphadestnBitsnPartitions’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:3595: warning: left shift count >= width of type
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘primitiveWarpBits’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:4304: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:4335: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘queryDestSurface’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:4411: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘querySourceSurface’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:4429: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘rgbComponentAlphawith’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:5046: warning: left shift count >= width of type
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘unlockSurfaces’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:5730: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘warpBits’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:5788: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:5819: warning: cast to pointer from integer of different size
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c: In function ‘warpLoop’:
> /home/lewis/squeak/VMM/src/vm/intplugins/BitBltPlugin/BitBltPlugin.c:5931: warning: cast to pointer from integer of different size
> 
> 


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