buffer

问题 I'm relatively new to C++. I'm allocating a buffer: uint8 *buffer = new uint8[len]; Using a 3rd party library, I use a method of an "img" object (it's a picture) to "take over" the buffer as raw image data: img->SetBuffer((uint8*)data); I suspect that "taking over" in practice means that the "img" object has its own pointer which after "SetBuffer" points to the data in "buffer". It all works fine, but my compiler complains (it's a warning, not an error) about a memory leak. If I add this line

问题 Currently my code works fine but should I replace raf.read() to raf.readFully() in order to ensure that all bytes will be read? raf = new RandomAccessFile(doc.getFilePath()+"/"+doc.getName(),"r"); raf.seek((partNumber-1)*partitionSize); byte[] buf = new byte[partitionSize]; int bytesRead = raf.read(buf); //ensure myself by readFully or not? System.out.println("expected="+partitionSize+" readed="+bytesRead); My suggestion is the following - when reading from local resource like file one read()

问题 I came up with an idea that requires to bind thousands of buffers (Atomic counters and Shader storage ones) to one GLSL program. I first checked if this would make any sense in the limitations of openGL and it seems possible for two reasons : On my laptop GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS and GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS both are around 32k. So openGL is enclined to let me bind thousands of buffers for one pass. openGL 4.4 comes up with : void BindBuffersBase(enum target, uint

问题 I have one frame, one window. I use Cx 3, I now have two windows. I use Cx Cb in order to see the list of buffers, however it opens it in another window but doesn't put the focus on it. It is even more annoying if I had opened a buffer on the 2nd window. I would prefer to either open the buffer list in the window which currently has the focus, or temporarily change the focus to the buffer list. 回答1: First of all I want to start by saying that the ibuffer function does similary to what you

问题 This question piggybacks on the following questions: Three.js - Buffer geometry particles, need to animate random groups of particles in system How to quickly update a large BufferGeometry? I'm starting a new project that will have tens of thousands of particles in the scene at any time. The concept is that there will be clusters of particles that look like galaxies spread throughout the scene. Sometimes I will need animate a galaxy and its thousands of particles. Can I do this while the

问题 I started getting this error in the last 6 months, probably because of a update to node.js . (node:36378) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead. I've pinpointed the specific package that is causing this warning: https://github.com/irhc/js-logging It's no longer maintained so I have to dig down and find the source of this problem. However my IDE ( WebStorm

问题 I'm using the following code to produce buffered output on a db maintenance script: function flush_buffers($string){ echo $string; ob_end_flush(); ob_flush(); flush(); ob_start(); } While this works as expected on my local Wamp server, showing output each time the function is invoked, it doesn't on the online web server: here the output is sent only once the script has ended. How is that? 回答1: Make sure output buffering is off in your php.ini file on your web server. You also don't have to

问题 This question was migrated from Super User because it can be answered on Stack Overflow. Migrated 9 years ago . As we know for UDP receive, we use Socket.ReceiveFrom or UdpClient.receive Socket.ReceiveFrom accept a byte array from you to put the udp data in. UdpClient.receive returns directly a byte array where the data is My question is that How to set the buffer size inside Socket. I think the OS maintains its own buffer for receive UDP data, right? for e.g., if a udp packet is sent to my

问题 I would like to deflate a small block of memory (<= 16 KiB) using zlib. The output is stored in a block of memory as well. No disk or database access here. According to the documentation, I should call deflate() repeatedly until the whole input is deflated. In between, I have to increase the size of the memory block where the output goes. However, that seems unnecessarily complicated and perhaps even inefficient. As I know the size of the input, can't I predetermine the maximum size needed

问题 I usually type M-x buffer-menu to switch buffers in Emacs. How can I do this with a shorter command? Its quite a long string to type. Thanks! 回答1: You can use C-x b to change buffers. You have to enter the first few letters of the buffer name, and of course you can use completion. If you press TAB (the most useful key in Emacs), a list of (matching) buffers appears. You can click in this list to switch to a buffer. You can bind buffer-menu to a key. Pick a key that's not used for another