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  • Fragment Shader Eye-Space unscaled depth coordinate

    - by Ben Jones
    I'm trying to use the unscaled (true distance from the front clipping plane) distance to objects in my scene in a GLSL fragment shader. The gl_FragCoord.z value is smaller than I expect. In my vertex shader, I just use ftransform() to set gl_Position. I'm seeing values between 2 and 3 when I expect them to be between 15 and 20. How can I get the real eye-space depth? Thanks!

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  • Rails based S3 file manager

    - by Jim Jones
    Hi, I'm looking for an open source project that provides a file manager type interface to S3. The ability to view files and "folders", add/edit/delete files/folders, etc. I've seen http://s3fm.com, but I'd like to host something like that myself. Does anything like this exist? Thanks.

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  • GZIP Java vs .NET

    - by Jim Jones
    Using the following Java code to compress/decompress bytes[] to/from GZIP. First text bytes to gzip bytes: public static byte[] fromByteToGByte(byte[] bytes) { ByteArrayOutputStream baos = null; try { ByteArrayInputStream bais = new ByteArrayInputStream(bytes); baos = new ByteArrayOutputStream(); GZIPOutputStream gzos = new GZIPOutputStream(baos); byte[] buffer = new byte[1024]; int len; while((len = bais.read(buffer)) >= 0) { gzos.write(buffer, 0, len); } gzos.close(); baos.close(); } catch (IOException e) { e.printStackTrace(); } return(baos.toByteArray()); } Then the method that goes the other way compressed bytes to uncompressed bytes: public static byte[] fromGByteToByte(byte[] gbytes) { ByteArrayOutputStream baos = null; ByteArrayInputStream bais = new ByteArrayInputStream(gbytes); try { baos = new ByteArrayOutputStream(); GZIPInputStream gzis = new GZIPInputStream(bais); byte[] bytes = new byte[1024]; int len; while((len = gzis.read(bytes)) > 0) { baos.write(bytes, 0, len); } } catch (IOException e) { e.printStackTrace(); } return(baos.toByteArray()); } Think there is any effect since I'm not writing out to a gzip file? Also I noticed that in the standard C# function that BitConverter reads the first four bytes and then the MemoryStream Write function is called with a start point of 4 and a length of input buffer length - 4. So is that effect the validity of the header? Jim

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  • Scrolling with CSS

    - by Jordan Trulen
    I have 4 tables that need to scroll, they are set up as follows: Table1(static) Table2(Horizontal Scrolling) Table3(Vertical Scrolling) Table4(Horizontal and Vertical Scrolling) Table1 Table2 Table3 Table4 The tricky part of this is that Table 3 and 4 need to keep in sync as this is a listing of data broken out into two tables. Table 2 and 4 are in the same situation. Any ideas? No Javascript please as we have a script that works, but it is far too slow to work. Thanks.

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  • What file format contents starts with "URES"?

    - by Jordan
    I have a number of files that contain data in a format I am not familiar with. All of the data files begin with the same byte sequence, presumably a file header, and the sequence is "URES". I'm assuming that these files are some kind of resource file, perhaps a collection of data or other files all embedded into one file; that's just a guess however. Does anyone know what format this is/might be? If so, how would I interrogate the file? Are there applications that let me open these kind of files? Do you know of any libraries or APIs that I can use to gain programmatic access the data?

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  • PHP - Find parent key of array

    - by Jordan Rynard
    I'm trying to find a way to return the value of an array's parent key. For example, from the array below I'd like to find out the parent's key where $array['id'] == "0002". The parent key is obvious because it's defined here (it would be 'products'), but normally it'd be dynamic, hence the problem. The 'id' and value of 'id' is known though. [0] => Array ( [data] => [id] => 0000 [name] => Swirl [categories] => Array ( [0] => Array ( [id] => 0001 [name] => Whirl [products] => Array ( [0] => Array ( [id] => 0002 [filename] => 1.jpg ) [1] => Array ( [id] => 0003 [filename] => 2.jpg ) ) ) ) )

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  • PS using Get-WinEvent with FilterXPath and datetime variables?

    - by Jordan W.
    I'm grabbing a handful of events from an event log in chronological order don't want to pipe to Where want to use get-winevent After I get the Event1, I need to get the 1st instance of another event that occurs some unknown amount of time after Event1. then grab Event3 that occurs sometime after Event2 etc. Basically starting with: $filterXML = @' <QueryList> <Query Id="0" Path="System"> <Select Path="System">*[System[Provider[@Name='Microsoft-Windows-Kernel-General'] and (Level=4 or Level=0) and (EventID=12)]]</Select> </Query> </QueryList> '@ $event1=(Get-WinEvent -ComputerName $PCname -MaxEvents 1 -FilterXml $filterXML).timecreated Give me the datetime of Event1. Then I want to do something like: Get-WinEvent -LogName "System" -MaxEvents 1 -FilterXPath "*[EventData[Data = 'Windows Management Instrumentation' and TimeCreated -gt $event1]]" Obviously the timecreated part bolded there doesn't work but I hope you get what I'm trying to do. any help?

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  • tripledes encryption not yielding same results in PHP and C#

    - by Jones
    When I encrypt with C# I get arTdPqWOg6VppOqUD6mGITjb24+x5vJjfAufNQ4DN7rVEtpDmhFnMeJGg4n5y1BN static void Main(string[] args) { Encoding byteEncoder = Encoding.Default; String key = "ShHhd8a08JhJiho98ayslcjh"; String message = "Let us meet at 9 o'clock at the secret place."; String encryption = Encrypt(message, key, false); String decryption = Decrypt(encryption , key, false); Console.WriteLine("Message: {0}", message); Console.WriteLine("Encryption: {0}", encryption); Console.WriteLine("Decryption: {0}", decryption); } public static string Encrypt(string toEncrypt, string key, bool useHashing) { byte[] keyArray; byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt); if (useHashing) { MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); } else keyArray = UTF8Encoding.UTF8.GetBytes(key); TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider(); tdes.Key = keyArray; tdes.Mode = CipherMode.ECB; tdes.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = tdes.CreateEncryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return Convert.ToBase64String(resultArray, 0, resultArray.Length); } public static string Decrypt(string toDecrypt, string key, bool useHashing) { byte[] keyArray; byte[] toEncryptArray = Convert.FromBase64String(toDecrypt); if (useHashing) { MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); } else keyArray = UTF8Encoding.UTF8.GetBytes(key); TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider(); tdes.Key = keyArray; tdes.Mode = CipherMode.ECB; tdes.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = tdes.CreateDecryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return UTF8Encoding.UTF8.GetString(resultArray); } When I encrypt with PHP I get: arTdPqWOg6VppOqUD6mGITjb24+x5vJjfAufNQ4DN7rVEtpDmhFnMVM+W/WFlksR <?php $key = "ShHhd8a08JhJiho98ayslcjh"; $input = "Let us meet at 9 o'clock at the secret place."; $td = mcrypt_module_open('tripledes', '', 'ecb', ''); $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); mcrypt_generic_init($td, $key, $iv); $encrypted_data = mcrypt_generic($td, $input); mcrypt_generic_deinit($td); mcrypt_module_close($td); echo base64_encode($encrypted_data); ?> I don't know enough about cryptography to figure out why. Any ideas? Thanks.

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  • Looping music with intro in XNA using SoundEffect

    - by Jordan Roher
    I have two sound files: Sound A is an 18 second intro designed to be played once Sound B is a 1 minute looping track I'd like to play Sound A once, then once Sound A is done, immediately play Sound B and keep looping Sound B until I tell it to stop. This is supposed to be looping town music in an RPG. I've tried doing this in code using just SoundEffect, but there's a tiny yet noticeable gap between the end of Sound A and the beginning of Sound B. Even if I put monitoring code watching Sound A's SoundEffectInstance.State in the Update() function, I haven't been able to start Sound B exactly when Sound A finishes so that it's seamless. I'd prefer to use SoundEffect because I can load WMA files rather than being stuck with WAVs in XACT.

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  • SQL DISTINCT Value Question

    - by CPOW
    How can I filter my results in a Query? example I have 5 Records John,Smith,apple Jane,Doe,apple Fred,James,apple Bill,evans,orange Willma,Jones,grape Now I want a query that would bring me back 3 records with the DISTINCT FRUIT, BUT... and here is the tricky part, I still want the columns for First Name , Last Name. PS I do not care which of the 3 it returns mind you, but I need it to only return 3 (or what ever how many DISTINCT fruit there are. ex return would be John,Smith,apple Bill,evans,orange Willma,Jones,grape Thanks in advance I've been banging my head on this all day.

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  • Can you update/add records in SQL using a datagridview and LINQ to SQL

    - by Jordan S
    Is it possible to bind a DataGridView to a LINQ to SQL class so that when I make changes to the records in the datagridview it automatically updates the SQL database? I have tried binding the data like this but if I make changes to the data in the datagrid view they do not actually affect the data in the database... BOMClassesDataContext DB = new BOMClassesDataContext(); var mfrs = from m in DB.Manufacturers select m; BindingSource bs = new BindingSource(); bs.DataSource = mfrs; dataGridView1.DataSource = bs;

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  • Consultant "branding" problem

    - by James Jones
    Where I work, we employ a consultant to do a considerable amount of work for us to hold us over until we can hire/train more staff. He has been working with us for quite a long time now, and he has always had this strange habit of leaving his initials on EVERYTHING he touches, as if its his sort of branding or advertising. And by everything, I mean: Database names Table names Variable names Web service names File names Server names etc... Is this a common practice among consultants? We politely asked if he could remove some of the branding, but he typically scoffs and quotes exorbitant time estimates to perform such 'silly' refactorings. I guess we could leave it alone, but it's really annoying to have to type out his name every time we reference something he made. Any recommendations on how to approach this problem? Edit: Our contract with him states that we "own" everything he makes for us.

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  • A good Design-by-Contract library for Java?

    - by Chris Jones
    A few years ago, I did a survey of DbC packages for Java, and I wasn't wholly satisfied with any of them. Unfortunately I didn't keep good notes on my findings, and I assume things have changed. Would anybody care to compare and contrast different DbC packages for Java?

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  • Work Experience - Internship Years

    - by James Jones
    I interned at my current place of employment for 2.5 years while I was an undergrad. During that time, I worked 40 hours per week during the summer and averaged 20 hours per week during the school year. I have since been hired full-time and I have been with the company a little over 3 years now. How many years of work experience do I have? Background info: There is a significant income disparity between someone with 1 year of experience vs 3 years (as per salary.com). I have job responsibilities equivalent to that of someone who has been at my company for about 5 years. I am trying to determine what I should expect in terms of income, raises, etc.

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  • Possible to use Python with Intel's Atom Developer SDK (C/C++)?

    - by Jordan Magnuson
    So I've made a game in Python and PyGame. Now I'm interested in submitting the game to Intel's March Developer Challenge. However, the developer challenge requires use of Intel's Atom Developer SDK (http://appdeveloper.intel.com/en-us/sdk), which only has API's for C and C++. I'm new to Python and PyGame, and have no experience in C or C++. My question is, would it be possible to somehow implement Intel's Atom SDK through/with/from a Python application (as the first link above suggests)? I've read up a little bit on embedding/extending Python into/with C, but I'm not entirely sure what to embed or where. I mean, I know I can do things like this in C: #include <Python.h> int main(int argc, char *argv[]) { Py_Initialize(); PyRun_SimpleString("from time import time,ctime\n" "print 'Today is',ctime(time())\n"); Py_Finalize(); return 0; } But what do I do about all my dependencies on Python and Pygame, for people that don't have those installed on their machines? Normally Py2Exe takes care of compacting the required dependencies (I've managed to package my game into an exe/zip), but how do I take care of that stuff in the context of embedding within C? Can I somehow work with py2exe on this, or do I need to do something entirely different for embedding within C? It seems like it would be a lot easier to go the route of extending Python with the C validation code, rather than trying to embed my whole game within C, but I think that's not an option, "because the library provided is currently only available as a Visual Studio 2008 '.lib'", meaning the application has to be compiled with Visual Studio...? Any help, thoughts, or ideas are much appreciated! You can find the complete SDK Developer's Guide on the intel site above, but here is their "Hello World" using the C Language API: #include <stdio.h> #include “adpcore.h” int main( int argc, char* argv[] ) { ADP_RET_CODE ret_code; const ADP_APPLICATIONID myApplicationID = {{ 0x12345678,0x11112222,0x33331234,0x567890ab}}; if ((ret_code = ADP_Initialize()) != ADP_SUCCESS ){ printf( “ERROR: exiting” ); exit( -1 ); } if (( ret_code = ADP_IsAuthorized( myApplicationId )) == ADP_AUTHORIZED ) printf( “Hello World” ); else printf( “Not authorized to run” ); exit 0; } 35 Page SDK Developer Guide: http:// appdeveloper.intel.com/sites/files/pages/SDK%20Developer%20Guide.pdf

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  • Embedding tcl in ruby

    - by Jordan
    Is there any way to do this? It seems the only possible way to do this is by using ruby/tk and creating a tcl interpreter through that api. However, I'd like to use this on a system with no GUI (x windows). Am I out of options? Thanks

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  • Vala vapi files documentation

    - by Jordan
    Hi there, I'd like to hack on an existing GLib based C project using vala. Basically what I'm doing is, at the beginning of my build process, using valac to generate .c and .h files from my .vala files and then just compiling the generated files the way I would any .c or .h file. This is probably not the best way, but seems to be working alright for the most part. My problem is that I'm having a hard time accessing my existing C code from my Vala code. Is there an easy way to do this? I've tried writing my own .vapi files (I didn't have any luck with the tool that came with vala), but I can't find any decent documentation on how to write these. Does any exist? Do I need one of these files to call existing C code? Thanks.

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  • Enabling PostgreSQL support in PHP on Mac OS X

    - by Jordan Scales
    I'm having a terribly difficult time getting the command "pg_connect()" to work properly on my Mac. I'm currently writing a PHP script (to be executed from console) to read a PostgreSQL database and email a report. I've gone into my php.ini file and added extension=pgsql.so But, I'm met with the following error. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so, 9): image not found in Unknown on line 0 PHP Fatal error: Call to undefined function pg_connect() in... (blah file here) When running phpinfo(), I see nothing about PostgreSQL, so what is my issue here?

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  • Problem getting correct parameters for C# P/Invoke call to C++ dll

    - by Jim Jones
    Trying to Interop a functionality from the Outside In API from Oracle. Have the following function: SCCERR EXOpenExport {VTHDOC hDoc, VTDWORD dwOutputId, VTDWORD dwSpecType, VTLPVOID pSpec, VTDWORD dwFlags, VTSYSPARAM dwReserved, VTLPVOID pCallbackFunc, VTSYSPARAM dwCallbackData, VTLPHEXPORT phExport); From the header files I reduced the parameters to: typedef VTSYSPARAM VTHDOC, VTLPHDOC * typedef DWORD_PTR VTSYSPARAM typedef unsigned long DWORD_PTR typedef unsigned long VTDWORD typedef VTVOID* VTLPVOID #define VTVOID void typedef VTHDOC VTHEXPORT, *VTLPEXPORT These are for 32 bit windows Going through the header files, the example programs, and the documentation I found: 1. That pSpec could be a pointer to a buffer or NULL, so I set it to a IntPtr.Zero (documentation). 2. That dwFlags and dwReserved according to the documentation "Must be set by the developer to 0". 3. That pCallbackFunc can be set to NULL if I don't want to handle callbacks. 4. That the last two are based on structs that I wrote C# wrappers for using the [StructLayout(LayoutKind.Sequential)]. Then instatiated an instance and generated the parameters by first creating a IntPtr with Marshal.AllocHGlobal(Marshal.SizeOf(instance)), then getting the address value which is passed as a uint for dwCallbackData and a IntPtr for phExport. The final parameter list is as follows: 1. phDoc as a IntPtr which was loaded with an address by the DAOpenDocument function called before. 2. dwOutputId as uint set to 1535 which represents FI_JPEGFIF 3. dwSpecType as int set to 2 which represents IOTYPE_ANSIPATH 4. pSpec as an IntPtr.Zero where the output will be written 5. dwFlags as uint set to 0 as directed 6. dwReserved as uint set to 0 as directed 7. pCallbackFunc as IntPtr set to NULL as I will handle results 8. dwCallBackDate as uint the address of a buffer for a struct 9. phExport as IntPtr to another struct buffer still get an undefined error from the API. Meaning that the call returns a 961 which is not defined in any of the header files. In the past I have gotten this when my choice of parameter types are incorrect. I started out using Interop Assistant which was helpful in learning how many of the parameter types get translated. It is however limited by how well I am able to glean the correct native type from the header files. For example the hDoc parameter used in the preceding function was defined as a non-filesytem handle, so attempted to use Marshal to create a handle, then used an IntPtr, and finally it turned out to be an int (actually it was &phDoc used here). So is there a more scientific way of doing this, other than trial and error? Jim

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  • How do I enumerate a list of interfaces that are directly defined on an inheriting class/interface?

    - by Jordan
    Given the following C# class: public class Foo : IEnumerable<int> { // implementation of Foo and all its inherited interfaces } I want a method like the following that doesn't fail on the assertions: public void SomeMethod() { // This doesn't work Type[] interfaces = typeof(Foo).GetInterfaces(); Debug.Assert(interfaces != null); Debug.Assert(interfaces.Length == 1); Debug.Assert(interfaces[0] == typeof(IEnumerable<int>)); } Can someone help by fixing this method so the assertions don't fail? Calling typeof(Foo).GetInterfaces() doesn't work because it returns the entire interface hierarchy (i.e. interfaces variable contains IEnumerable<int> and IEnumerable), not just the top level.

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  • Using Active Directory and Open ID to authenticate a Play Framework based application.

    - by Nick Jones
    I have an application I am building using the Play Framework. I would like this application to authenticate users using Open ID and Active Directory. Is this possible? Please excuse my ignorance as I am not a J2EE expert but come from a deep knowledge of the .Net framework and some experience writing Java applications. Any guidance would be much appreciated. Thanks in advance.

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  • How to animate the drawing of a CGPath?

    - by Jordan Kay
    I am wondering if there is a way to do this using Core Animation. Specifically, I am adding a sub-layer to a layer-backed custom NSView and setting its delegate to another custom NSView. That class's drawInRect method draws a single CGPath: - (void)drawInRect:(CGRect)rect inContext:(CGContextRef)context { CGContextSaveGState(context); CGContextSetLineWidth(context, 12); CGMutablePathRef path = CGPathCreateMutable(); CGPathMoveToPoint(path, NULL, 0, 0); CGPathAddLineToPoint(path, NULL, rect.size.width, rect.size.height); CGContextBeginPath(context); CGContextAddPath(context, path); CGContextStrokePath(context); CGContextRestoreGState(context); } My desired effect would be to animate the drawing of this line. That is, I'd like for the line to actually "stretch" in an animated way. It seems like there would be a simple way to do this using Core Animation, but I haven't been able to come across any. Do you have any suggestions as to how I could accomplish this goal?

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