I have databuffer which is width*height*2 byte long, every pixel is two byte long(the value is the gray scale). How can I generate a QImage object from this buffer.
It seems there is no such format in QImage.
The following image formats are available in all versions of Qt:
Constant Value Description
QImage::Format_Invalid 0 The image is invalid.
QImage::Format_Mono 1 The image is stored using 1-bit per pixel. Bytes are packed with the most significant bit (MSB) first.
QImage::Format_MonoLSB 2 The image is stored using 1-bit per pixel. Bytes are packed with the less significant bit (LSB) first.
QImage::Format_Indexed8 3 The image is stored using 8-bit indexes into a colormap.
QImage::Format_RGB32 4 The image is stored using a 32-bit RGB format (0xffRRGGBB).
QImage::Format_ARGB32 5 The image is stored using a 32-bit ARGB format (0xAARRGGBB).
QImage::Format_ARGB32_Premultiplied 6 The image is stored using a premultiplied 32-bit ARGB format (0xAARRGGBB), i.e. the red, green, and blue channels are multiplied by the alpha component divided by 255. (If RR, GG, or BB has a higher value than the alpha channel, the results are undefined.) Certain operations (such as image composition using alpha blending) are faster using premultiplied ARGB32 than with plain ARGB32.
QImage::Format_RGB16 7 The image is stored using a 16-bit RGB format (5-6-5).
QImage::Format_ARGB8565_Premultiplied 8 The image is stored using a premultiplied 24-bit ARGB format (8-5-6-5).
QImage::Format_RGB666 9 The image is stored using a 24-bit RGB format (6-6-6). The unused most significant bits is always zero.
QImage::Format_ARGB6666_Premultiplied 10 The image is stored using a premultiplied 24-bit ARGB format (6-6-6-6).
QImage::Format_RGB555 11 The image is stored using a 16-bit RGB format (5-5-5). The unused most significant bit is always zero.
QImage::Format_ARGB8555_Premultiplied 12 The image is stored using a premultiplied 24-bit ARGB format (8-5-5-5).
QImage::Format_RGB888 13 The image is stored using a 24-bit RGB format (8-8-8).
QImage::Format_RGB444 14 The image is stored using a 16-bit RGB format (4-4-4). The unused bits are always zero.
QImage::Format_ARGB4444_Premultiplied 15 The image is stored using a premultiplied 16-bit ARGB format (4-4-4-4).
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