Integrating faster bitblt into iOS StackVM WAS: [Vm-dev] unit code
for new faster bitblt
estebanlm at gmail.com
Wed Jul 17 13:36:24 UTC 2013
I'm trying to integrate your code and I have some doubts (very simple ones, as you will see :).
So far, I integrate your code into CogVM and StackVM by enabling ENABLE_FAST_BLT and adding BitBltGeneric.c, BitBltDispatch.c into the code base.
(btw, it compiles, but I really don't know if something is missing and how to measure the enhancement).
Now, I want to extend the code to the iOS vm's (for example, for DrGeo2 would be great), and since iOS is a FreeBSD over an ARM, I do not see why it should not work more or less out of the box :)
And well... my doubt is which files should I include, since there are various there :)
(btw.. since they are not really "cross", shouldn't them be in other(s) platform directories?)
On Jun 29, 2013, at 3:44 AM, tim Rowledge <tim at rowledge.org> wrote:
> On 26-06-2013, at 9:35 PM, tim Rowledge <tim at rowledge.org> wrote:
>> On a related issue, I finally made enough sense of cmake to spot a way to get the relevant define, err, defined, without having to alter the sqPlatformSpecific.h, which is a nice improvement. I'm still inclined to think that some manner must exist to only try to compile the related C files if you want them, rather than relying on the library linking to dump unwanted code.
> The pile'o'filesfor this is available for any heroic person to try out on an intel machine; I'd be fascinated to hear if it makes any difference when you already have a huge cache and wide memory bus to cover up mild inefficiencies.
> A normal ../../cmake/configure should build a perfectly ordinary interpreter vm. ../cmake/configure --enableFastBlt should make the fast blt, and (I hope) should appropriately skip the ARM specific stuff. I'm pretty sure that some extra IF clause in the plugins/BitBltPlugin/config.cmake script would be useful for skipping the BitBltDispatch & BitBltGeneric files when un-needed but damned if I can work out how right now.
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> Strange OpCodes: HCF: Halt and Catch Fire
More information about the Vm-dev