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Introducing the Qt Lite project – Qt for any platform, any thing, any size

blog.qt.io

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Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#11

Post by nullcipher »

n00b101 wrote: post #8
roymurdock wrote: post #6

Earlier quoted context omitted.

Automotive In-Vehicle-Infotainment (IVI) systems that feature embedded SoCs running Linux for the GUI on an MPU and embedded RTOSs on MCUs for some of the more real-time/routine functions. Energy efficiency is secondary to the unnecessary cost/performance profile of building in a GPU to render relatively simple dashboard graphics. The automotive market is the fastest-growing (and one of the largest) vertical markets…

It's not my area, but I have a hard time believing that any competitive, modern IVI would be missing GPU integration. Just looking briefly, both Qualcomm [1] and NVIDIA [2] automotive systems have on-board GPUs. [1] https://www.qualcomm.com/products/automotive/infotainment [2] http://www.nvidia.ca/object/drive-cx.html

Same here. It would be very poor long term investment to put a chip into a car without a GPU.

But, I think the Qt changes are for IoT and not for cars.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#12

Post by ChuckMcM »

n00b101 wrote: post #4

The new configuration system in Qt, allows your define the content you need from each module in much more detail for your project and easily allows for feature based tailoring of the Qt modules. We are starting with enabling this fully for Qt Core, Qt Network, Qt GUI, Qt QML and Qt Quick. You can now fine tune which features from these modules you want to include in your project. There is no longer any need to includ…

   I wonder what kinds of devices this is intended for?
This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with pixel format conversion options)

Put a keyboard and a VGA monitor on it and you've got a PC that is at least as powerful as the ones from the late 80's early 90's.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#13

Post by roymurdock »

ChuckMcM wrote: post #12
n00b101 wrote: post #4

The new configuration system in Qt, allows your define the content you need from each module in much more detail for your project and easily allows for feature based tailoring of the Qt modules. We are starting with enabling this fully for Qt Core, Qt Network, Qt GUI, Qt QML and Qt Quick. You can now fine tune which features from these modules you want to include in your project. There is no longer any need to includ…

I wonder what kinds of devices this is intended for? This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with…

What are possible use cases for a device like this? (I didn't downvote you and I don't know why anyone would)

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#14

Post by walterbell »

newsat13 wrote: post #3

The amount of editorial in this post is mind blowing. Am I the only one who found it extremely hard (yes, extremely) to sift through all the blurb of text. In the end, I am not even sure what is being released.

Would have been better if editorial/positioning was separated from facts via subject headings.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#15

Post by kbutler »

newsat13 wrote: post #3

The amount of editorial in this post is mind blowing. Am I the only one who found it extremely hard (yes, extremely) to sift through all the blurb of text. In the end, I am not even sure what is being released.

Skimmed it.

TLDR: will be able to configure smaller subsets of Qt modules so you don't have to deliver the whole package on small systems.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#16

Post by ChuckMcM »

roymurdock wrote: post #13
ChuckMcM wrote: post #12

Earlier quoted context omitted.

I wonder what kinds of devices this is intended for? This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with…

What are possible use cases for a device like this? (I didn't downvote you and I don't know why anyone would)

Anything that needs a rich graphical interface and a simple programming model? I've seen these things in things like digital signs, kiosks, etc.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#17

Post by erichocean »

roymurdock wrote: post #13
ChuckMcM wrote: post #12

Earlier quoted context omitted.

I wonder what kinds of devices this is intended for? This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with…

What are possible use cases for a device like this? (I didn't downvote you and I don't know why anyone would)

Certainly, why would you want that vs. a $5 Rapsberry Pi Zero which does have an actual GPU, media acceleration, etc., more RAM, a more powerful CPU, etc.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#18

Post by kbenson »

roymurdock wrote: post #13
ChuckMcM wrote: post #12

Earlier quoted context omitted.

I wonder what kinds of devices this is intended for? This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with…

What are possible use cases for a device like this? (I didn't downvote you and I don't know why anyone would)

Off the top of my head, with no experience in this field, appliance displays? E.g. a screen on your fridge. Or even the screen in your car? Touch interfaces of roughly this size are popping up everywhere.

Re: Introducing the Qt Lite project – Qt for any platform, any thing, any size

#19

Post by derefr »

roymurdock wrote: post #13
ChuckMcM wrote: post #12

Earlier quoted context omitted.

I wonder what kinds of devices this is intended for? This: http://www.st.com/content/st_com/en/products/evaluation-tool... ARM Cortex M-4 architecture, 800 x 480 full color display, 16MB of RAM and 16MB of flash on this demo board and the part includes a 2D bitblit unit (ST calls is ChromArt(tm)) which can do fill from constant, memory to memory region copy, memory to memory copy with alpha blend, (and all three with…

What are possible use cases for a device like this? (I didn't downvote you and I don't know why anyone would)

Add a digitizer to it and it'd work well as a "soft keyboard" (visual modal button grid) on POS terminals et al.

These would also work well for bottom-dollar thin-client hardware operating over the core X11 or VNC protocol (i.e. rects + pixbuf texture handles.)

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