8/24/2023 0 Comments Purebasic image memory allocation![]() So never assume that the mempointer point to a real memory position. Which is why 64bit is the way to go if you got GFX cards with losts of mem, or and more than 2GB system mem, or plan to use SLI GFX cards etc. so with a 1GB GFX card + 4GB system mem you'll only be able to use like 2GB of that system mem. Nethertheless windows run into problems and failed to manage the memory, with randomly allocation errors. It is sure, that at all no more than 1.2 GB ram were needed. 2 channel 16-bit signed image memory allocator. To keep the ram below 1.5 GB I did many 'Global Dims', arrays to zero and back to full size, permanently during execution. Parameters Returns Pointer to new image data. Parameters pData A pointer to memory allocated using nppiMalloc. Things are a bit more complex with shared memory though.Īlso remember that on a 32bit OS a GFX card with 1GB "uses" 1GB of the system's adress space. This method should be used to free memory allocated with any of the nppiMalloc methods.You program will still use the same mempointers though and think nothing has changed. Syntax MemoryID AllocateMemory (Size, Flags) Description Allocates a contiguous memory area with the specified size in bytes. I havenât really used it in Windows, so I canât say for sure, but from a quick investigation online it looks like each instance of popen in the sample code should be replaced with either popen or wpopen (the second one. In Windows, I think the popen function works differently. Then lots of other programs are ended, the OS might defragment memory by copying your program's memory to the middle of the first chip and then remap the memory there. A distant memory is slowly coming back to me. Now I need the memory contents of Image to be sent over network with compression, but I do not want to use SaveImage(). Vista do this or not.Ä«ut as an example, if the physical memory is almost full on the system and you run your program and it gets memory at the end of the last memchip. I am writing a screen capture program where I am capturing the screen image into a Image. If the memory allocation failed due to lack of free device memory or device memory. They return a pointer to the newly created memory and return the numbers of bytes between successive lines. The allocators have width and height parameters to specify the size of the image data being allocated. In debug mode is possible to examine the contents of memory buffers and the state of windows, files, threads, gadgets, sprites, XML data, even visualize image objects with their alpha channel if present. This is just a theoretical example as I've never checked if i.e. ImageAllocator methods for 2D arrays of data. Basically what I want to do is get the address of two images and compare their MD5 fingerprint to see if they're the same. 1 PureBasic compiles directly to IA-32, x86-64, PowerPC or 680x0 instruction sets, generating small standalone executables and DLLs which need no runtime libraries beyond the standard system libraries. (even with the same amount of ram as a 32bit os) The pointer returned could in the theory be any number, like 10 but actually point physically to the middle of the 2nd memchip. Location: Norway Getting memory address of image SOLVED <- haha by Joakim Christiansen Sun 9:26 pm Hi, I was wondering about how I can get the memory address to a purebasic image. ![]() This kind of thing has been shown before on these forums too.And for a 64bit things are way different again, you'll more likely see even higher numbers there than currently. This includes all allocations and freeing of resources. I hope you are not suggesting that PB should allocate 64k for all strings by default just in case you want to use one with a certain API command?Ī far more sensible approach is that because you the programmer know what you want to do, then you should do it. Why does PB have to allocate the maximum length of string (the maximum is currently around 64k)? How does it know you want to use a string for the buffer of an API command? Parameters for API commands are only tagged as being addresses, not strings or buffers so the compiler cannot decide what needs to have strings allocated before they are used. If yes, then PB has to put it with the max lenght. This is probably best done by working directly on memory - and if necessary, using some simple assembly language routines (I did this for 8-bit MPU's many years ago, so I'd like to have another try). The syntax of PureBasic is easy to understand, and its powerful commands allow developers to create. One of the best features of PureBasic is its ease of use, making it an ideal language for beginners just starting with programming. I don't remember if len of string in PB are limited ? I want to do some RGB or grayscale image Pixel data (image manipulation) work. PureBasic is a high-level programming language known for its simplicity, flexibility, and portability.
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