Thank you again Kostya I will research based on what you told me and let you know if I get it to work.
-Chris On Thu, Jan 6, 2011 at 2:12 PM, Kostya Vasilyev <kmans...@gmail.com> wrote: > Chris, > > First off, Windows bitmap are stored upside-down: > > http://en.wikipedia.org/wiki/BMP_file_format#Pixel_Array_.28bitmap_data.29 > > The Pixel Array is a block of 32-bit DWORDs, that describes the image pixel > by pixel. Normally pixels are stored "upside-down" with respect to normal > image raster scan order, starting in the lower left corner, going from left > to right, and then row by row from the bottom to the top of the image.[1] > > > I *think* you can indicate top-down order by setting height to a negative > value (in the file header). > > Secondly, the color problem - 32-bit per pixel Windows bitmaps use BGRx > data format, blue-green-red, then one byte is ignored. > > Your input image is ARGB, so red and blue are switched around. > > Since you indicated that you'll be processing these images further, you > could handle both issues in your server code. Or you could handle them on > the phone, changing byte order around isn't going to be as time-consuming as > compression. > > -- Kostya > > 06.01.2011 23:53, chris harper пишет: > > Kostya (or anyone else) > > Ok. In TRYING to write out a ANDROID Bitmap to a windows .bmp file. > I am very close but there is something that is still off because my image > doesn't look right (as in the screen shot below). > > Here is how I am writing out to the file: > > cache - is the Android Bitmap file which I want to write out to a .bmp > file. > It is set to: Bitmap.Config.ARGB_8888 > > //Get the Bitmap height, width, and put the data > into a byte array (bytesar) > > byte[] bytesar = null; > ByteBuffer dst = null; > > int height = cache.getHeight(); > int width = cache.getWidth(); > int bmSize = cache.getRowBytes() * height; > > dst = ByteBuffer.allocate(bmSize); > > bytesar = new byte[bmSize]; > > > dst.position(0); > cache.copyPixelsToBuffer(dst); > > dst.position(0); > dst.get(bytesar); > > //I then write out the bytesar byte array AFTER > I write out the BMP header. > > > The settings in the header are: > > private byte bitmapInfoHeader [] = new byte [40]; - Header size is 40 > private int biSize = BITMAPINFOHEADER_SIZE; > private int biWidth = width //width of Bitmap > private int biHeight = height //height of Bitmap > private int biPlanes = 1; > private int biBitCount = 32; //The bite count is 32 > private int biCompression = 0; > > size is computed by: > int pad = (4 - ((width * 3) % 4)) * height; > biSizeImage = ((width * height) * 3) + pad; > > private int biSizeImage > private int biXPelsPerMeter = 0x0; > private int biYPelsPerMeter = 0x0; > private int biClrUsed = 0; > private int biClrImportant = 0; > > It's very close because here is what it looks like when I write out the > .bmp file. > As you can see it's upside down and the colors are off: > http://i1092.photobucket.com/albums/i409/ch39336688/test-2.jpg > > In the same block of code I write out using the Android lib to make sure > that my image is good via the code: > FileOutputStream out = new FileOutputStream("test.png"); > cache.compress(Bitmap. > CompressFormat.PNG, 90, out); > > And here is how that comes out (which is how I want): > http://i1092.photobucket.com/albums/i409/ch39336688/test.png > > Again I don't just want to use compress to write out my images because I > have a lot of images and it kills my performance. So I want to stream the > images out to a .bmp file is what my overall goal is. Someplace in my .bmp > header I have something wrong I think. > > Any help on what anyone thinks my issue is would be a great help. Thank you > > -Chris > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > > > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget -- > http://kmansoft.wordpress.com > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
