- #Mac os x wallpapers 1366x768 how to#
- #Mac os x wallpapers 1366x768 full version#
- #Mac os x wallpapers 1366x768 drivers#
- #Mac os x wallpapers 1366x768 android#
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#Mac os x wallpapers 1366x768 how to#
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#Mac os x wallpapers 1366x768 full version#
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Call CGImageGetBytesPerRow to get the byte offset from the start address of previous row to get to the start address of the next row.40 Funny Doodles For Cat Lovers and Your Cat Crazy Lady FriendĦ0 Quotes On Cheating Boyfriend And Lying Husbandġ20 Free Airport WiFi Passwords From Around The WorldĤ Ways To Boost And Optimize Wireless WiFi Signal Strength And SpeedĦ Virtual SIM Phone Number App For iOS And Android SmartphonesĦ Best VPN for Gaming – No Lags, 0% Packet Loss and Reduce Ping msħ Free Apps To Find, Spy And Track Stolen Android Smartphoneġ0 Best Free WordPress Hosting With Own Domain And Secure Securityġ0 GPS Tracker For Smartphones In Locating Missing, Abducted And Kidnapped Childħ Laptop Theft Recovering Software with GPS Location Tracking and Sp圜amĭownload Free McAfee AntiVirus Plus for 30 Daysĭownload the New Norton Antivirus, Internet Security
#Mac os x wallpapers 1366x768 drivers#
Drivers typically use pixel stride that is 64-byte aligned because that is the common cache line size. 1366 on the other hand, the largest power of 2 divisor is 2. If you can still make out some of the pixels but the rows are misaligned, your byte stride is wrong. You need to call CGImageGetWidth, CGImageGetHeight, and CGImageGetBitsPerPixel (and other functions in CGImage.h) to make sure that the pixel format is correct.
If the image looks like pseudo-random noise, your pixel format is wrong. The SaveBitmapToFile method is only used for testing, In a real-life scenario I'm actually passing the captured pixels through libavcodec to convert and save the frames to an FLV format, but the end result is the same, the image gets scrambled.ĭoes anyone have any idea why the code doesn't work for 1366x768 (or other non-standard 4:3 or 16:9 resolutions for that matter)?įirst you should try to render the CGImageRef to screen right after capture to make sure that the data is valid. Ssize_t bytesWritten = write(fileDescriptor, bufferFileHeader.get()->getData(), sizeBITMAPFILEHEADER) īytesWritten = write(fileDescriptor, bufferInfoHeader.get()->getData(), sizeBITMAPINFOHEADER) īytesWritten = write(fileDescriptor, pBitmapBits, bmpInfoHeader.biSizeImage) returning if error encountered when opening fileīufferInfoHeader.write(&bmpInfoHeader.biSize, 4) īufferInfoHeader.write(&bmpInfoHeader.biWidth, 4) īufferInfoHeader.write(&bmpInfoHeader.biHeight, 4) īufferInfoHeader.write(&bmpInfoHeader.biPlanes, 2) īufferInfoHeader.write(&bmpInfoHeader.biBitCount, 2) īufferInfoHeader.write(&bmpInfoHeader.biCompression, 4) īufferInfoHeader.write(&bmpInfoHeader.biSizeImage, 4) īufferInfoHeader.write(&bmpInfoHeader.biXPelsPerMeter, 4) īufferInfoHeader.write(&bmpInfoHeader.biYPelsPerMeter, 4) īufferInfoHeader.write(&bmpInfoHeader.biClrUsed, 4) īufferInfoHeader.write(&bmpInfoHeader.biClrImportant, 4) īufferFileHeader.write(&bfh.bfReserved1, 2) īufferFileHeader.write(&bfh.bfReserved2, 2) īufferFileHeader.write(&bfh.bfOffBits, 4) Int fileDescriptor = open(lpszFileName, O_CREAT | O_WRONLY) This is the SaveBitmapFile method that is used for saving the pixels: void BitmapUtility::SaveBitmapToFile(u8* pBitmapBits, long lWidth, long lHeight, unsigned short wBitsPerPixel, char* lpszFileName)īmpInfoHeader.biSize = sizeBITMAPINFOHEADER īmpInfoHeader.biBitCount = wBitsPerPixel īmpInfoHeader.biSizeImage = lWidth* lHeight * (wBitsPerPixel / 8) īfh.bfOffBits = sizeBITMAPINFOHEADER + sizeBITMAPFILEHEADER īfh.bfSize = bfh.bfOffBits + bmpInfoHeader.biSizeImage The code works well for resolutions such as 1024x768, 1280x1024, 1280x960, 1280x768 etc., but it completely scrambles the image for 1366x768. Uint8_t* pixels = (uint8_t*)CFDataGetBytePtr(dataRef) īitmapUtility::SaveBitmapToFile(pixels, width, height, 32, "/Users/Main/test32.bmp")
I've implemented the following code in a C++ project on Mac OS X, for capturing the desktop screen: int ScreenCaptureRoutines::CaptureImage(int width, int height)ĬGImageRef img = CGWindowListCreateImage(captureRect, kCGWindowListOptionOnScreenOnly, kCGNullWindowID, kCGWindowImageDefault) įprintf(stderr, "CGWindowListCreateImage failed\n!") ĬGDataProviderRef provider = CGImageGetDataProvider(img) ĬFDataRef dataRef = CGDataProviderCopyData(provider)
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