π
<-
Chat plein-écran
[^]

GBA Emulator (GPSP) lags and has huge frame drops..

:32tins: :32tinsktpb: :32tinsktpn: :32tinscas: :32tinstpkc: :32tinstpktpb: :32tinstp: :32tinscastp: :32tinscmc: :32tinscx: :32tinscxcas:

GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby felixlee0530 » 09 Sep 2018, 18:03

I installed a
GBA emulator called GPSP
in my Nspire CX calculator. It is also in one of the threads in this website.

However, the games I tried to launch (e.g. Pokemon Fire Red, Super Mario Deluxe) lag seriously.
They have a lot of frame drops which makes me annoying.


I overclocked the calculator within the
maximum capability with Nover,
and also set the graphics options for GPSP as
it makes the frame skip automatic.


Some Youtube videos demonstrate to me that it is possible to run GBA games smoothly without any lags, but in my device, that doesn't seem to happen. (such as this: https://www.youtube.com/watch?v=q_K0yxTHWSA)

Any solutions for this?
User avatar
felixlee0530
Niveau 6: SM (Super Membre)
Niveau 6: SM (Super Membre)
Level up: 0%
 
Posts: 19
Joined: 27 Aug 2017, 04:45
Gender: Male
Calculator(s):
Class: IB Mathematics HL

Re: GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby parrotgeek1 » 11 Sep 2018, 13:07

This is a result of new, less efficient LCD hardware in HW W+ (the screen is now 240x320 and sideways, so all images on it must be rotated before display). I have no idea why they used that screen.
My Projects:
nLoaderCAS Patcher for ControlXnLaunchy CXM fork (3.9 CAS on B&W) - News Article
Prototypes:
Upgrade EVT Nspire CAS+Fix keyboard on prototype TI-Nspire CAS Touchpad
- Highlights: Nspire CX Non-CAS OS 3.3, CX & CX CAS OS 4.4 & 4.5 special reformatting installers (both found by me on TI's site)
Discoveries:
Boot1.5 vuln (used in nLoader) • Nspire dev boardsPink CX
Je peux comprendre le français mais je ne peux pas le parler bien.
User avatar
parrotgeek1Prog.
Niveau 11: LV (Légende Vivante)
Niveau 11: LV (Légende Vivante)
Level up: 65.1%
 
Posts: 736
Joined: 29 Mar 2016, 01:22
Location: USA
Gender: Male
Calculator(s):
Class: university student
GitHub: parrotgeek1

Re: GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby Adriweb » 11 Sep 2018, 13:42

Probably simply because this one was cheaper and more recent (also allowing them to unify their sourcing to GiantPlus, for both the CX and CE series).
Why would they care if they have to first rotate the buffer if it's fast enough for their marketed purposes (math&science, after all), as long as their target users don't notice? (which they don't, since they also overclocked the CPU a bit on the Nspire, and on the CE we just have a DLOD on games). Basically as long as teachers don't complain, they have no reason to do something else.
User avatar
AdriwebAdmin.
Niveau 16: CC2 (Commandeur des Calculatrices)
Niveau 16: CC2 (Commandeur des Calculatrices)
Level up: 50.8%
 
Posts: 12448
Images: 1080
Joined: 01 Jun 2007, 00:00
Location: France
Gender: Male
Calculator(s):
Class: (ingénieur)
Twitter: adriweb
GitHub: adriweb

Re: GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby felixlee0530 » 13 Sep 2018, 15:11

parrotgeek1 wrote:This is a result of new, less efficient LCD hardware in HW W+ (the screen is now 240x320 and sideways, so all images on it must be rotated before display). I have no idea why they used that screen.


Oh.. I see..

God damn Texas Instruments..

So you mean there are no possible solutions for this?
User avatar
felixlee0530
Niveau 6: SM (Super Membre)
Niveau 6: SM (Super Membre)
Level up: 0%
 
Posts: 19
Joined: 27 Aug 2017, 04:45
Gender: Male
Calculator(s):
Class: IB Mathematics HL

Re: GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby Adriweb » 13 Sep 2018, 16:58

Modifying the emulator to write to the screen as the hardware natively expects it - but last time this was tried, it didn't work so well, and it wasn't debugged because of the lack of access to such new hardware.
User avatar
AdriwebAdmin.
Niveau 16: CC2 (Commandeur des Calculatrices)
Niveau 16: CC2 (Commandeur des Calculatrices)
Level up: 50.8%
 
Posts: 12448
Images: 1080
Joined: 01 Jun 2007, 00:00
Location: France
Gender: Male
Calculator(s):
Class: (ingénieur)
Twitter: adriweb
GitHub: adriweb

Re: GBA Emulator (GPSP) lags and has huge frame drops..

Unread postby felixlee0530 » 13 Sep 2018, 16:59

Adriweb wrote:Modifying the emulator to write to the screen as the hardware natively expects it - but last time this was tried, it didn't work so well, and it wasn't debugged because of the lack of access to such new hardware.


So, do you mean that there is currently no definite solution for devices using the new LCD screen?
User avatar
felixlee0530
Niveau 6: SM (Super Membre)
Niveau 6: SM (Super Membre)
Level up: 0%
 
Posts: 19
Joined: 27 Aug 2017, 04:45
Gender: Male
Calculator(s):
Class: IB Mathematics HL


Return to Problèmes divers / Aide débutants

Who is online

Users browsing this forum: No registered users and 5 guests

-
Search
-
Featured topics
Offre TI-Planet/Jarrety pour avoir la TI-83 Premium CE avec son chargeur pour 79,79€ port inclus !
Offre TI-Planet/Jarrety pour avoir la TI-Nspire CX CAS à seulement 130€ TTC port inclus!
Jailbreake ta TI-Nspire avec Ndless et profite des meilleurs jeux et applications !
123
-
Donations / Premium
For more contests, prizes, reviews, helping us pay the server and domains...

Discover the the advantages of a donor account !
JoinRejoignez the donors and/or premium!les donateurs et/ou premium !


Partner and ad
Notre partenaire Jarrety 
-
Stats.
323 utilisateurs:
>298 invités
>20 membres
>5 robots
Record simultané (sur 6 mois):
6892 utilisateurs (le 07/06/2017)
-
Other interesting websites
Texas Instruments Education
Global | France
 (English / Français)
Banque de programmes TI
ticalc.org
 (English)
La communauté TI-82
tout82.free.fr
 (Français)