Steve Jobs Offers Explanation About iPhone SDK Changes Restricting Adobe and Other Cross Compilers

[bengst]

Thanks God Apple is restricting that crap.
Are you still wondering why the apple ecosystem so strong and clean is?
The reason is just that: stopping crap coming in.
Flash is crap because it's CPU hog.
Compare a quicktime movie with a flash movie.
The flash movie will lose most frames and has a crappy quality.
The only reason youtube had success with flash is because most windoze pcs have no quicktime and most pc users dont' even have a clue of what quicktime is.
So the decision to avoid crap is simply in the philosophy of Apple and has NOTHING to do with market.

Get your fact straight. Open your mind, don't close it just because iJobs said so.

Flash isn't the only reason for CPU hog. It's Apple's policy on blocking GPU to be used by Adobe.
On Windows platform Flash is very efficient because it utilized the Hardware accelerator. Some enlightenment for you:
http://www.readwriteweb.com/archive...eat_flash_surprising_results_of_new_tests.php
and comparison on mobile platform:
http://www.readwriteweb.com/archives/flash_now_importable_to_hmtl_canvas.php


Quicktime alone has nothing todo with video quality, both of them can playback "HD" mp4 files from youtube. The quality is depends on the compression of the video.
About the performance, of course it's better on Quicktime side, because Apple know how to utilized the GPU. While they closed it for other parties.


Yes, the decision to avoid CRAP is Apple's philosophy.
How can there are 31 more iFart clone apps if it isn't from Apple's philosophy?
and please, once again, don't close your mind. You can look at the google spreadsheet (link below), some well-known games which is use cross compiler/SDK other than Apple's own.
(none of them are fart apps which is built using apple SDK!)
https://spreadsheets.google.com/lv?key=thI2hub60oD3P9ztEsWXpVw

 

[cmaier]

The GPU acceleration thing is nonsense. Silverlight streaming on my mac uses a ton less CPU than flash streaming. Doubtless they'd both be better with bare metal access to the GPU, but Flash is by far the worst for streaming video. (And it absolutely sucks for playing games, too).

Get your fact straight. Open your mind, don't close it just because iJobs said so.

Flash isn't the only reason for CPU hog. It's Apple's policy on blocking GPU to be used by Adobe.
On Windows platform Flash is very efficient because it utilized the Hardware accelerator. Some enlightenment for you:
http://www.readwriteweb.com/archive...eat_flash_surprising_results_of_new_tests.php
and comparison on mobile platform:
http://www.readwriteweb.com/archives/flash_now_importable_to_hmtl_canvas.php


Quicktime alone has nothing todo with video quality, both of them can playback "HD" mp4 files from youtube. The quality is depends on the compression of the video.
About the performance, of course it's better on Quicktime side, because Apple know how to utilized the GPU. While they closed it for other parties.


Yes, the decision to avoid CRAP is Apple's philosophy.
How can there are 31 more iFart clone apps if it isn't from Apple's philosophy?
and please, once again, don't close your mind. You can look at the google spreadsheet (link below), some well-known games which is use cross compiler/SDK other than Apple's own.
(none of them are fart apps which is built using apple SDK!)
https://spreadsheets.google.com/lv?key=thI2hub60oD3P9ztEsWXpVw

 

[DMann]

The GPU acceleration thing is nonsense. Silverlight streaming on my mac uses a ton less CPU than flash streaming. Doubtless they'd both be better with bare metal access to the GPU, but Flash is by far the worst for streaming video. (And it absolutely sucks for playing games, too).

Without question.

Allowing Flash to run on any mobile device would only increase the likelihood for serious performance issues across the board.

Choosing to bypass potential complications seems logical here.

 

[PeterQVenkman]

Well, the folks at Unity have a meeting with Apple. They'll get the real answer while the forum here continues to tear itself to shreds.

 

[bengst]

The GPU acceleration thing is nonsense. Silverlight streaming on my mac uses a ton less CPU than flash streaming. Doubtless they'd both be better with bare metal access to the GPU, but Flash is by far the worst for streaming video. (And it absolutely sucks for playing games, too).

Absolutely sucks on playing games. What doesn't?


Could you please point some links on silverlight streaming video, because I had hard times googling/bingit it.
all I can get is Silverlight2 demo, which makes my CPU jump to 80 much like Flash did.

Now, if you said Flash is by far the worst for streaming video, comparing to what? On what platform?
Have you compare Flash and "other video player" performance on Windows or Linux? oh, btw please compare the internet connection speed too.
I can assure you it's slower on OSX.

Yes, Flash is CPU eater (on Mac platform). But make it an excuse for restricting compile native iPhone apps, that's a nonsense.

 

[PeterQVenkman]

The GPU acceleration thing is nonsense.

It may be nonsense, but it works. Damn adobe, but it works very well with GPU acceleration.

Silverlight streaming on my mac uses a ton less CPU than flash streaming.

True, Silverlight is amazing. Netflix freaking rocks on Silverlight.

Doubtless they'd both be better with bare metal access to the GPU, but Flash is by far the worst for streaming video.

The studies point to one thing really: flash sucks on the Mac. Blame Adobe, then flip off Apple.

(And it absolutely sucks for playing games, too).

One flash game to convert even the most hardened Flash hater: free PLANTS VS. ZOMBIES!!!

http://www.popcap.com/games/free/pvz

Enjoy!

 

[cmaier]

Absolutely sucks on playing games. What doesn't?


Could you please point some links on silverlight streaming video, because I had hard times googling/bingit it.
all I can get is Silverlight2 demo, which makes my CPU jump to 80 much like Flash did.

Now, if you said Flash is by far the worst for streaming video, comparing to what? On what platform?
Have you compare Flash and "other video player" performance on Windows or Linux? oh, btw please compare the internet connection speed too.
I can assure you it's slower on OSX.

Yes, Flash is CPU eater (on Mac platform). But make it an excuse for restricting compile native iPhone apps, that's a nonsense.

I'm not making it an excuse. I'm saying that "flash can't use GPU acceleration and that's why it sucks" is a bullsh-t excuse. Flash sucks because Adobe doesn't give a crap, and hasn't bothered to optimize it. It takes 80% CPU on pause, for god's sake. For two years mlb.tv used silverlight, and it was far superior to flash. There are also silverlight videos here, for example, but you'll have to pay for them. If you do, you'll see they use far less CPU then you're likely accustomed to with flash:

http://www.legalspan.com/calbar/onlinecle.asp?CategoryID=2003090287019445422&UGUID=

 

[CristobalHuet]

Sorry Adobe, you screwed yourself. They didn't care about Apple when Apple needed them most. Not personal, just business.

http://innerdaemon.wordpress.com/2010/04/10/sorry-adobe-you-screwed-yourself/

WHAMO!

Excellent blog.

 

[lPHONE]

I don't use Mail, Safari, Time Machine, iWork, iLife, iCal, iTunes, Image Capture, Aparture, Preview, Text Edit, these are off the top of my head. There are far better alternative applications out there.

What the hell are you using a Mac for? Gettouttahere!

 

[LagunaSol]

Essentially, what Apple stipulates with the iPhone OS 4.0 SDK is you can ONLY use Apple's own development tools to write iPhone OS apps. It would be analogous to traveling between New York City and Washington, DC and the only choice of transportation is the Amtrak Acela commuter train and you can't drive a car, take a bus, or fly between these two cities.

Um, no. It would be analogous to buying an Amtrak ticket and then being "forced" to ride Amtrak to use that ticket.

 

[expand]

Small world of a mac fanboy

What the hell are you using a Mac for? Gettouttahere!

You are kidding I hope, or is your whole life dictated to you by others? I still can't believe that Apple newbie fanboys still believe that Apple had all its own ideas. Wake up and smell the salt kids.
Like I said, there are many better (or alternative) applications out there if you have a mind to experiment and experience.
As for my workflow, its professional and private, and on a new mac, my 11th machine since system 7, which is my choice, like posting here is my choice. Stay cool and stay here .........

 

[tlinford]

Control freak? Creativity and acceptance!

In the early days of Apple, Apple lost ground, mainly because of Mr Job's attitude to controlling their software. Copy controlled Rom SW in the Apple II, allowed Microsoft to dominate, they could grow faster with the licence it to everyone attitude!

I first came to Apple products in the form of the Bondi Blue iMac, revolutionary but flawed by lack of software.. Things have come a long way since then and cross compiling, which has been around for over a decade has been important to this...

I can see how the rapid acceptance of iPhone, allowing iPhone to dominate the mobile phone market, has come through tight Apple Store control. The Apps work, and work well, otherwise they don;t get into the Store. This means that customers are not put off..

I have heard Mr Jobs say how much he likes open source software, he after all has pulled a lot of open source into Apple OS X, his development teams have polished open source code and made it their own, and made it good!

I would be terrified if OSX went iStore, and also if OSX lost ground over the iStore 'cash-cow'... How will the new OS roadmap allow people to remain creative and interested in Apple.... there are already voices of dissent on this forum over recent Mac slowdown refresh, is this because so much resource in being ploughed into what is making Apple a shed-load of Money iPhone (iPad), and iStore?