Search found 86 matches

by ufoz
Thu Jan 31, 2008 1:02 pm
Forum: PSP Development
Topic: Reading the depthbuffer - Problem with format?
Replies: 6
Views: 4869

by ufoz
Thu Jan 24, 2008 10:50 am
Forum: PSP Development
Topic: GPGPU on PSP
Replies: 23
Views: 9370

Again, i must repeat myself: even without pipeline programmability one could still use blending features to sum/subtract/multiply/divide huge matrices (as big as a texture can be) It's not really general purpose, but it can often help. So you already know the answer then! If all you need is the sim...
by ufoz
Wed Jan 23, 2008 3:26 pm
Forum: PSP Development
Topic: GPGPU on PSP
Replies: 23
Views: 9370

I don't see the point of trying to do number crunching on an underpowered handheld...?

If you just want a coprocessor or more parallelism in a game, the ME and VFPU are much more suited for that.
by ufoz
Wed Nov 21, 2007 1:19 pm
Forum: PSP Development
Topic: genuine PSP font with intraFont & PGF binary format
Replies: 51
Views: 39287

thanks for answer, but I think that writer homebrew can not use native OSK for writing..... because it would be too many characters that must be put into osk textbox I think, correct me if i am wrong.... You can set the maximum length of the input, however, you don't need to let the user input the ...
by ufoz
Wed Oct 31, 2007 5:23 pm
Forum: PSP Development
Topic: Not sure what to do
Replies: 2
Views: 1604

If you're new to programming, start on the PC. The debugging tools avaiable are much more user-friendly and helpful than an unforgiving embedded system.
by ufoz
Mon Oct 29, 2007 3:29 am
Forum: PSP Development
Topic: Weird rendering problem: render 2 times at 1/4 size
Replies: 3
Views: 4389

I used to get this randomly and the problem would go away on its own in a different build with irrelevant changes (also randomly depending on wether or not I was using psplink at the time)
by ufoz
Mon Oct 22, 2007 1:34 am
Forum: PSP Development
Topic: GCJ: How To?
Replies: 6
Views: 3307

I think it's not as much a matter of convincing, as it is a problem of the (non-) existence of libraries or C bindings that would let you get anything done. (unless I missed something)
by ufoz
Fri Oct 12, 2007 1:21 am
Forum: PSP Development
Topic: Got The code... Cant compile it!
Replies: 12
Views: 8577

Is that... C#?

Wow. Just wow.
by ufoz
Sun Sep 30, 2007 2:02 pm
Forum: PSP Development
Topic: Found a bug in the GU samples
Replies: 0
Views: 1106

Found a bug in the GU samples

...stemming from the confusion of which loop index belongs to which kind of subdivision when generating vertices for a torus mesh. In psp/sdk/samples/gu/common/geometry.c, lines 14 and 15 are float s = i + 0.5f; float t = j; but i and j should be switched to float s = j + 0.5f; float t = i; plus the...
by ufoz
Tue Sep 25, 2007 11:09 am
Forum: PSP Development
Topic: Is there an introduction on how ELF, PRX, Kernel etc. works?
Replies: 12
Views: 5877

Thanks, but I was thinking more PSP-specific information. No, you figure it out using your more general knowledge and looking at available code. This is DEVELOPER level stuff - it you can't learn from hex dumps, you're not ready for it yet. :) Programming the PSP isn't Visual Basic. I don't know wh...
by ufoz
Sat Aug 18, 2007 4:40 pm
Forum: PSP Development
Topic: Suicide Barbie demo [Final version]
Replies: 16
Views: 12915

rendering loop of the demo had to be organized differently than in GU samples in order to achieve better parallelism between main CPU and GU
I'd like to read more about this part
by ufoz
Wed Aug 15, 2007 2:18 am
Forum: PSP Development
Topic: dotOS yearly progression
Replies: 120
Views: 103521

I was just asking about kanji display + input/conversion. Making an IME is no trivial task, but japanese input support isn't complete without one.

Also the 。 goes in the top-right when writing vertically.
by ufoz
Tue Aug 14, 2007 10:29 am
Forum: PSP Development
Topic: dotOS yearly progression
Replies: 120
Views: 103521

漢字の表示・入力・変換は、どうするつもり? 平仮名&#12384...
by ufoz
Mon Aug 06, 2007 10:59 pm
Forum: PSP Development
Topic: PSPGU Lightmapping ?
Replies: 21
Views: 7023

use sceGuDepthOffset to get rid of z-fighting maybe?
by ufoz
Thu Aug 02, 2007 10:04 am
Forum: PSP Development
Topic: now,we can use libaudiocodec to decode mp3 and aac
Replies: 36
Views: 59734

Re: bad forms

DookFook with bad forms you don't go anywhere... "badass" ?, if other people didn't have the problem you must think the problem is in our makefile, includes,or libraries in pspsdk or something that we don't see. Please, someone that help us and show us the way to make this thing work.than...
by ufoz
Tue Jul 31, 2007 7:53 pm
Forum: PSP Development
Topic: How to make psp display transparent?
Replies: 3
Views: 2218

Well, if you want to write to the framebuffer directly like that, you'll have to do the alpha calculations yourself, ie. interpolate between the pixel color and your background color when copying over the image...
by ufoz
Tue Jul 31, 2007 1:41 pm
Forum: PSP Development
Topic: How to make psp display transparent?
Replies: 3
Views: 2218

the alpha channel is ignored in the framebuffer. If you need transparency, use a texture and turn on blending.
by ufoz
Sat Jul 28, 2007 1:28 am
Forum: The Incredible Hall Of Shame
Topic: 3.52 to 1.5
Replies: 3
Views: 12414

gb2/qj.net
by ufoz
Mon Jul 09, 2007 3:35 pm
Forum: PSP Development
Topic: Getting ta-082 unstuck.
Replies: 3
Views: 2608

The creator of the KeyCleaner app did this on purpose in order to not allow people to go back to official firmware. The key that is need for homebrew is Key 0x0005 and that is the key that ChillyWilly’s Keycleaner app leaves corrupted. Haha, I'm pretty sure this is not true. That key needs to stay ...
by ufoz
Sun Jul 08, 2007 12:58 am
Forum: PSP Development
Topic: Problem puzzle me. Reading Tga file and caculate data size..
Replies: 10
Views: 4493

Something like this, I guess... #ifdef WIN32 #pragma pack(push) #pragma pack(1) #define __PACKED__ #else #define __PACKED__ __attribute__((packed)) #endif struct bitmap_header { uint16 id; uint32 size; uint32 reserved; uint32 o...
by ufoz
Fri Jul 06, 2007 4:49 pm
Forum: PSP Development
Topic: Usual makefile
Replies: 5
Views: 2723

TyRaNiD wrote:Sure it is but the end result will be little different to what you have already, in fact it will probably be worse :)
Lo and behold...
by ufoz
Thu Jul 05, 2007 2:24 pm
Forum: PSP Development
Topic: Trying to get Started
Replies: 11
Views: 4734

If you're new to programming, I suggest you start on the PC. It's orders of magnitude easier to deal with an easily debuggable environment that doesn't crash horribly if you do something wrong. Once you're comfortable enough with programming in general, it makes sense to move on to embedded/handheld...
by ufoz
Tue Jul 03, 2007 10:45 pm
Forum: PSP Development
Topic: strange problem with vector declaration
Replies: 4
Views: 2142

Your bug is probably elsewhere, and adding the extra variable makes it go away. Try tracking down where it crashes with psplink..?
by ufoz
Mon Jun 11, 2007 5:42 pm
Forum: PSP Development
Topic: Can't seem to draw lines :S
Replies: 24
Views: 10542

Is lighting on or off? It might be ignoring your colors or something...What about blending?
by ufoz
Sat Jun 09, 2007 7:47 pm
Forum: PSP Development
Topic: Can't seem to draw lines :S
Replies: 24
Views: 10542

its Engine2D::Render2DLineOn3D(***); not engine2d->Render2DLineOn3D(**); as its a class member function and not a STRUCT pointer member function um, no. if that were the case, the code wouldn't even compile. presumably, engine2d points to an Engine2D instance so using -> is fine. edit: this time li...
by ufoz
Mon May 28, 2007 7:45 pm
Forum: PSP Development
Topic: The new-style psptoolchain script.
Replies: 58
Views: 27554

Surely you mean 4.2?
by ufoz
Thu May 24, 2007 7:22 pm
Forum: PSP Development
Topic: LIBPNG / LIBTTF Exploits?
Replies: 8
Views: 3267

The PSP firmware uses its own proprietary font system, not TTF, so that one isn't even applicable.
Anyway, I thought we don't really discuss exploits here...?
by ufoz
Thu May 17, 2007 7:18 pm
Forum: PSP Development
Topic: 2d camera?
Replies: 7
Views: 3633

Help with... what? Setting up the projection matrix?
by ufoz
Thu May 10, 2007 1:27 am
Forum: PSP Development
Topic: i've got an issue installing psptoolchain on opensuse...
Replies: 10
Views: 5545

Aww. I thought it was appropriately funny. :)
by ufoz
Wed May 09, 2007 1:47 pm
Forum: PSP Development
Topic: i've got an issue installing psptoolchain on opensuse...
Replies: 10
Views: 5545

"issuse" - freudian typo or clever pun? We may never know.