http://permalink.gmane.org/gmane.comp.lib.sdl hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.comp.lib.sdl/56367 <pre>Hi, I have some stupid question as following, please feel free to correct me if any inappropriate. 1. how to install sdl 1.2 for developing application using sdl, which parts is required? source code? Runtime Libraraies? Development Libraries? 2. On a linux server, I don't a root permission, can I install them in my local directory? I've tried rpm package, which seems to need root permission because I got the error as "error: can't create transaction lock on /var/lib/rpm/__db.000". Can I use source code to build a library? I'd appreciate if you could provide a procedure. 3. How to distribute it? Must it be with runtime libraries? Thanks, Joe _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> sword9 2012-05-18T08:05:06 http://permalink.gmane.org/gmane.comp.lib.sdl/56366 <pre>Thanks gents, I got this working, and it turns out most of my issue was that I wasn't using proper coordinates for aligning the texture on my gl quad vertices. Anyway, I fixed that up, and it's pretty awesome. Anyone interested in the code can peek at it here: https://github.com/mrozbarry/bitfighter-experiments/blob/master/bitfighter1.0/sdlutil.cpp SDL::Surface is the class you'll want to prod at, and the openglBindTexture method would be the exacting place to look. Thanks for all the help gents, you were super. -Alex On Tue, May 15, 2012 at 12:04 PM, Jonathan Dearborn &lt;grimfang4&lt; at &gt;gmail.com&gt;wrote: _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Alex Barry 2012-05-18T03:24:15 http://permalink.gmane.org/gmane.comp.lib.sdl/56365 <pre>2012/5/17 Alex Barry &lt;alex.barry&lt; at &gt;gmail.com&gt; It depends on the GCC version (which in turn depends on the Ubuntu version you are using), the exact specifics escape me right now, but assuming your library path is right, it looks like you are being bitten by the dependency resolver "feature" in newer versions of GCC...(at least from Ubuntu 11.04 onwards) Basically, if libSDL2_ttf uses a symbol from libSDL2, the order in which you list them in the command line is very important as the linker solves dependencies in that order...The first thing I'd try is swapping the line like this: LDFLAGS=-L/usr/local/lib -lSDL2main -lSDL2_ttf `sdl2-config --libs` -lGL Hopefully that solves it. </pre> Gabriel Jacobo 2012-05-17T17:56:31 http://permalink.gmane.org/gmane.comp.lib.sdl/56364 <pre>Here is my makefile: CC=g++ So, everything compiles fine except, I get a pile of Undefined reference SDL_* sdl2-config --libsd --cflags gives me this output (which appears to be correct): -L/usr/local/lib -Wl,-rpath,/usr/local/lib -lSDL2 -lpthread Any ideas? I haven't played with SDL2 on Ubuntu before (only mingw and msvc++) -Alex _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Alex Barry 2012-05-17T17:42:29 http://permalink.gmane.org/gmane.comp.lib.sdl/56363 <pre> The Linux joystick driver enumerates all axes up to ABS_MISC but accepts input for all axes up to ABS_MAX. This causes all axes after ABS_MISC to be remapped to axis 0, because the abs_map table is initialised to zero. In practice this makes joysticks such as the PS3 SixAxis gamepad almost unusable. As a simple fix I suggest replacing ABS_MISC with ABS_MAX around line 705 in src/joystick/linux/SDL_sysjoystick.c so that all axes including the accelerometer ones are available. Cheers, </pre> Sam Hocevar 2012-05-17T14:59:43 http://permalink.gmane.org/gmane.comp.lib.sdl/56362 <pre>On Wednesday 16 May 2012, at 02.56.08, Jason White &lt;whitewaterssoftwareinfo&lt; at &gt;gmail.com&gt; wrote: [...] I've been doing a bit of that stuff with embedded systems (lab instrumenst), using TCP/IP via SDL_net and NET2. Communication with the Windows GUI was done using the same basic protocol anyway, so it was handy to just build on that. The instrument would act as a server, allowing one or more clients to connect to it, upload scripts etc. (That was actually the protocol; send a script over, talking to the local server APIs, sending back whatever the client needed.) I wanted the tools to run "everywhere" (my Linux devsystems and the Windows boxes in the lab), so they're all written in EEL (custom scripting engine that I originally designed for the purpose of doing 1+ kHz realtime scripting on those instruments), and of course, SDL and TCP/IP is available on pretty much anything. Also, since NET2 provides an event based API, it's easy to deal with asynchronous communication without dealing with threa</pre> David Olofson 2012-05-17T14:03:13 http://permalink.gmane.org/gmane.comp.lib.sdl/56361 <pre>How about UNIX named pipes? // Receiver (run first) #include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #include &lt;unistd.h&gt; #include &lt;sys/stat.h&gt; int main(void) { FILE *npfp; char input[80]; mknod("myPipe",S_IFIFO|0666,0); for(;;) { npfp=fopen("myPipe","r"); fgets(input,80,npfp); printf("Got string: %s\n",input); fclose(npfp); }} // Sender (run to send) #include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; int sender_main(void) { FILE *npfp; if((npfp=fopen("myPipe","w"))==NULL) return 1; fputs("Data",npfp); fclose(npfp); return 0; } On 5/15/2012 5:56 PM, Jason White wrote: </pre> Andreas Schiffler 2012-05-17T13:26:03 http://permalink.gmane.org/gmane.comp.lib.sdl/56360 <pre>No ideas? I've tried a bunch of stuff to no avail, it does seem like the library isn't handling orientations correctly. Has nobody done an ios app with sdl that works in different orientations? On Thu, May 10, 2012 at 8:04 PM, &lt;sdl-request&lt; at &gt;lists.libsdl.org&gt; wrote: </pre> Michael Brough 2012-05-17T07:45:32 http://permalink.gmane.org/gmane.comp.lib.sdl/56359 <pre> I scratched out a rough implementation of the *nix fork/exec idiom that results in a SDL_RWops structure (it even returns stdin/etc. to their pre-'spawn' states). It requires some work (e.g. SDLPIPE_TYPEID is completely invalid), and I never actually tried to compile it (I'm currently using Windows, and haven't even bothered to look up it's equivalent yet), but if you want then I'll post the file online under the same license as SDL 2. Be warned that I'm currently unwilling to provide support for it (fortunately it's a pretty small file, so that shouldn't be a problem). </pre> Jared Maddox 2012-05-17T03:03:39 http://permalink.gmane.org/gmane.comp.lib.sdl/56358 <pre>Check ZeroMQ and CrossRoads-IO (fork of ZeroMQ). For serializing there is MessagePack On 5/15/2012 5:56 PM, Jason White wrote: </pre> Dimiter 'malkia' Stanev 2012-05-16T02:45:26 http://permalink.gmane.org/gmane.comp.lib.sdl/56357 <pre>For messaging format, you should look up Protocol Buffers. ( https://developers.google.com/protocol-buffers/ ) Really nicely designed, you write out a simple spec which describes the structure of the message, which is then compiled to a nice class-based interface for your target language (e.g. C++, Python). Just the sauce for serializing lots of tricky data. As for the actual IPC part, there's many different ways to go about it (pipes, sockets, shared memory segments). I haven't tried writing an IPC layer, so the best advice I have is to hit up Stack Overflow and flip through until you find something which gels with your instincts about how things should work. Or try out one of the prebaked IPC libraries based on Protobuf ( http://code.google.com/p/protobuf/wiki/ThirdPartyAddOns ), or dig through the source code of a project which has rolled their own solution (e.g. Clementine music player uses Protobuf for IPC). On Wed, May 16, 2012 at 8:56 AM, Jason White &lt;whitewaterssoftwareinfo&lt; at &gt;gmail.com&gt; wrote: </pre> Scott Percival 2012-05-16T02:08:19 http://permalink.gmane.org/gmane.comp.lib.sdl/56356 <pre>Research gdb and ddd. . _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> greno 2012-05-16T01:21:06 http://permalink.gmane.org/gmane.comp.lib.sdl/56355 <pre>Hello, I have been writing a game engine for to teach myself about SDL for quite a while now. The engine has reached a level of complexity that I feel it would be beneficial to have a external debugging program to aid in development. More precisely I would like to be able to pause/unpause the game and track objects [and their variables] without too much extra coding effort. I'll probably be writing the debugging application in python, but thats not terribly relevant to the question. My question is how should implement inter-process communications ? What libraries could I use to achieve communication in-between two programs quickly and painlessly ? (SDL_Net, Sockets, D-Bus, etc ...) Development is almost exclusively on Linux so I don't care if it would break cross platform compatibility. If anyone has some words of wisdom it would be greatly appreciated. </pre> Jason White 2012-05-16T00:56:08 http://permalink.gmane.org/gmane.comp.lib.sdl/56354 <pre>Well, I adapted that for SDL_gpu (http://code.google.com/p/sdl-gpu/) and got it to work. Maybe you can look through the SDL_gpu source? Check out OpenGL/SDL_gpu_OpenGL.c, specifically Init(), CopyImageFromSurface(), and Blit(), though Blit() is a little obfuscated by features. I'm also assuming NPOT texture support. Jonny D _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Jonathan Dearborn 2012-05-15T16:04:02 http://permalink.gmane.org/gmane.comp.lib.sdl/56353 <pre>I think you may be able to duplicate this by creating a Fedora 16 guest in VirtualBox and installing Mesa. My understanding was that VirtualBox supported OpenGL hardware acceleration. . _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> greno 2012-05-15T16:03:29 http://permalink.gmane.org/gmane.comp.lib.sdl/56352 <pre>That's actually the code I started with, and didn't have success. =/ On Tue, May 15, 2012 at 11:31 AM, Jonathan Dearborn &lt;grimfang4&lt; at &gt;gmail.com&gt;wrote: _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Alex Barry 2012-05-15T15:53:06 http://permalink.gmane.org/gmane.comp.lib.sdl/56351 <pre>HERPDERP, right. Sorry. Reading over it now. On Tue, May 15, 2012 at 10:42 AM, greno &lt;greno&lt; at &gt;verizon.net&gt; wrote: _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Patrick Baggett 2012-05-15T15:44:47 http://permalink.gmane.org/gmane.comp.lib.sdl/56350 <pre> Patrick Baggett wrote: Yes, I had the option on already. It just shows that it came from stack allocation. . _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> greno 2012-05-15T15:42:27 http://permalink.gmane.org/gmane.comp.lib.sdl/56349 <pre>Can you do --track-origin=yes so we can see where the uninit'd values came from? On Tue, May 15, 2012 at 10:27 AM, greno &lt;greno&lt; at &gt;verizon.net&gt; wrote: _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Patrick Baggett 2012-05-15T15:35:40 http://permalink.gmane.org/gmane.comp.lib.sdl/56348 <pre> The glTexImage2D( ....., NULL); glTexSubImage2D( .... ); pattern isn't required. You can do it all in one step in your case. Seeing as how you're going GL_INVALID_VALUE, that tells me your width and height are likely wrong. They need to be a power of 2*. *GL_ARB_texture_non_power_of_two relaxes this. http://www.opengl.org/registry/specs/ARB/texture_non_power_of_two.txt _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Patrick Baggett 2012-05-15T15:34:03 http://permalink.gmane.org/gmane.comp.lib.sdl/56347 <pre>Is any of this necessarily specific to SDL2? The gpwiki page on loading an SDL_Surface to an OpenGL texture works for SDL1.2: http://content.gpwiki.org/index.php/SDL:Tutorials:Using_SDL_with_OpenGL Jonny D _______________________________________________ SDL mailing list SDL&lt; at &gt;lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org </pre> Jonathan Dearborn 2012-05-15T15:31:52 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lib.sdl