Jensthecomposer
Composer
I know ONE thing that maybe could make some games playable, and that is a option for frameskipping!!! Where is the frameskipping??
Dolphin Final 1.03.2 BETA Released
- Thread starter ChaosCode
- Start date
Generally, frameskipping is useful when the game, or emulator, is bogged down on the graphics end. Meaning, the graphics aren't fast enough to keep up with the CPU. In the case of Gamecube emulation, it's the oppasite. The CPU can't keep up with the graphics. Someone else (I don't remember who) has already provided an excellent example. I'll try to reitterate it.
Think of emulation like a book. The CPU (which does the emulation, for the most part) is the author, and the illustrator is the graphics unit. For frameskipping to be benificial, the author has to be writing the book so fast, that the illustrator can't keep up. So, instead of providing a picture for every page of the book, they provide a picture for every 5 or 10 pages. This cuts down on the work needed to be done by the illustrator, and allows the writer to get more done.
In the case of Gamecube emulation, the writer could be said to have writer's block. Because they're not putting forth pages to be drawn, the illustrator has to wait for the author to wirte more pages. The illustrator can't draw something that they don't have yet. So, for this case, it would be mostly pointless for the illustrator to draw less pictures. They can complete one picture faster than the writer can write one page.
Does that make sense? Did this help explain why frameskipping would most likely not help increase the speed in GC emulation? I certainly think it's a good example. Mouser X over and out.
Think of emulation like a book. The CPU (which does the emulation, for the most part) is the author, and the illustrator is the graphics unit. For frameskipping to be benificial, the author has to be writing the book so fast, that the illustrator can't keep up. So, instead of providing a picture for every page of the book, they provide a picture for every 5 or 10 pages. This cuts down on the work needed to be done by the illustrator, and allows the writer to get more done.
In the case of Gamecube emulation, the writer could be said to have writer's block. Because they're not putting forth pages to be drawn, the illustrator has to wait for the author to wirte more pages. The illustrator can't draw something that they don't have yet. So, for this case, it would be mostly pointless for the illustrator to draw less pictures. They can complete one picture faster than the writer can write one page.
Does that make sense? Did this help explain why frameskipping would most likely not help increase the speed in GC emulation? I certainly think it's a good example. Mouser X over and out.
Falcon4ever
Plugin coder / Betatester
Mouser X said:
:flowers: wish we had much more users like you on this board
great explaination!
BlueFalcon7
New member
This should go in the FAQs...Jensthecomposer said:I know ONE thing that maybe could make some games playable, and that is a option for frameskipping!!! Where is the frameskipping??
first it was "can anyone hook me up with isos"
then it was "OMG-WTF 2FPS????"
then "OMG-WTF 2FPS, I want to play naruto!!!!"
now its "why no frameskip?"
the frameskip idea should go in the answer for "why is the dolphin going as fast as a pregnant snail?"
blackmage0_15
New member
Don't want to sound like a complainer, noob or no-it-all, so I will attempt to word this correctly.
If you guys are still continuing coding of the Dolphin emulation, and hearing the frameskip argument I thought of something. Is it possible to put calculations onto the GPU, and free up the CPU for more processing, bettering the frame rate?
I figure anyone who does emulation, has a good videocard.
If you guys are still continuing coding of the Dolphin emulation, and hearing the frameskip argument I thought of something. Is it possible to put calculations onto the GPU, and free up the CPU for more processing, bettering the frame rate?
I figure anyone who does emulation, has a good videocard.
Agozer said:
Well...to me it doesn't sound like a conceptually bad idea: While the GPU may not be able to perform graphics functions that the CPU is being used to emulate, perhaps some kind of performance boost can be achieved by essentially freeing up the CPU to function as a GPU and then offloading as many tasks to the actual GPU as possible.
I don't presently know whether or not this is viable, but if someone who knew more about it would comment that might be constructive
If nothing else, it would certainly be educational!In this particular case
http://www.emutalk.net/showpost.php?p=335924&postcount=55
Dolpin beta v.2 appears to be graphically less compatible then Dolphin beta v.1
http://www.emutalk.net/showpost.php?p=335924&postcount=55
Dolpin beta v.2 appears to be graphically less compatible then Dolphin beta v.1
blackmage0_15
New member
Kyune, I guess no-one is freed up enough to answer.
Does anyone know if this would work. As a programmer, I need to know if such things are possible in an emulator.
Does anyone know if this would work. As a programmer, I need to know if such things are possible in an emulator.