Current state of Snapdragon-based CPUs in PPSSPP

[stodag]

A lot of people have reported this problem... me too.
What I will say is compatibility is key and speed will come after, maybe wait for 1.0.

[vitality19]

my guess is that snapdragon cores (scorpion - krait) are not designed by ARM and thus use a slightly different arm architecture that lacks optimization specifically for emulators, I can be wrong of course,
but after reading these:
http://www.openssl.org/~appro/Snapdragon-S4.html
https://sites.google.com/site/dosboxturbo/performance
http://en.wikipedia.org/wiki/List_of_ARM_cores
that is my conclusion

P.S.: No offense meant for snapdragon owners, I myself considered this SoC quite powerful

[aikidoka90]

(11-01-2013 08:09 PM)vitality19 Wrote:  my guess is that snapdragon cores (scorpion - krait) are not designed by ARM and thus use a slightly different arm architecture that lacks optimization specifically for emulators, I can be wrong of course,
but after reading these:
http://www.openssl.org/~appro/Snapdragon-S4.html
https://sites.google.com/site/dosboxturbo/performance
http://en.wikipedia.org/wiki/List_of_ARM_cores
that is my conclusion

P.S.: No offense meant for snapdragon owners, I myself considered this SoC quite powerful

There is no offense, is the truth.

My house-mate has note 2 and runs ppsspp too much better than my galaxy S4. Kingdom hearts in note 2 runs przctically PERFECT. Without rendeer. And in my S4 doesnt runs even at 60%.

Something happens... I hope with opengl 3.0 optimitation this improves.

[vitality19]

note 2 specs = galaxy s3 specs, to think that galaxy s4 (snapdragon version) is weaker than s3 in emulation,
so much optimization is required

[KingpinZero]

I think its something related to geometry.

Let me explain.

Def Jam = solid 60fps fullspeed, with 1x render, multi core enabled
Ridge Racer 2 = the same
Half Minute Hero = the same
Soul Calibur = The same, even when the camera pans in the arena....as soon as 1 character enter the camera (like when they introduce themselves) the framerate collpases to almost single digits.

So if that helps debuggin the problem, i think its something related to geometry, or a particular feature related to it.

[globe94]

BUZZ !


just a bump, i dont want this thread to die or be overwritten

[vitality19]

There are so many cheap and powerful snapdragon (used) devices (quad-core, adreno 320) in my country, and yet, cause of this mis-optimization there's no point in buying any of them, what a pity

[stodag]

Hopefully this can be fixed.. although on latest builds iv just got a bit of speed boost
not much to write home about, but its there.

I have faith, in time they will find and fix the problem.. nobody said this would be easy..

[globe94]

yeah, im positive too,
i will wait for fix 'til v4.0 (how long is that?)
haha..

[Ritori]

(11-08-2013 02:18 AM)globe94 Wrote:  yeah, im positive too,
i will wait for fix 'til v4.0 (how long is that?)
haha..

8 years maybe depend lol I'm not a future reading

[stodag]

(11-08-2013 02:18 AM)globe94 Wrote:  yeah, im positive too,
i will wait for fix 'til v4.0 (how long is that?)
haha..

hopefully not 4.0..lol
Wonder if when I'm old and wrinkled , I'll still be playing games??? ...

[globe94]

a gamer will always be a gamer
my dad still plays bomberman and super mario NES games. and he is 60yrs/old

[fivefeet8]

Whatever you guys are doing with the latest dev builds, it's given FF7:CC a huge speed boost on my GS4(US). I'm seeing performance improvements from 14 FPS to 30 FPS in some scenes. Amazing!!

[spajdr]

I don't see any fps difference, it get actually little slower.
Keep up the good work guys though.

[fivefeet8]

(11-14-2013 04:38 PM)spajdr Wrote:  I don't see any fps difference, it get actually little slower.
Keep up the good work guys though.

Have you enabled the software skinning option?

https://github.com/hrydgard/ppsspp/pull/...t-28498301