Re: [boost] GIL - Need to load from HBITMAP

From: Lubomir Bourdev (lbourdev_at_[hidden])
Date: 2006-10-13 14:14:40

Gordon Smith wrote:
> Looks like its this easy (not using any_image yet):
> using namespace gil;
> 
> BITMAP bm;
> 
> m_bmp.GetBitmap(&bm);
> 
> if (bm.bmPlanes == 1 && bm.bmBitsPixel == 8)
> 
> {
> 
>         rgb8c_view_t src = interleaved_view(bm.bmWidth, 
> bm.bmHeight, (const rgb8_pixel_t*)bm.bmBits, bm.bmWidthBytes);
> 
> }
> 

Yes. And here is how to extend it with any_image_view:

typedef mpl::vector<gray8c_view_t, gray16c_view_t, 
                    rgb8c_view_t,  rgb16c_view_t> my_view_types;
typedef any_image_view<my_view_types> my_any_view_t;

my_any_view_t create_runtime_gil_view(int color_space, int bpp, 
                       int w, int h, int row_bytes, void* pixels) {
    switch (color_space) {
       case kRGB:	// your own enum
          switch (bpp) {
             case 8:
               return my_any_view_t(interleaved_view(w,h, (const
rgb8_pixel_t*)pixels, row_bytes));

          }
... 
    }

}

I find this wrapper a nice way to get to GIL realm from your
application.
We have something similar for Photoshop, as Photoshop images are
typically specified at run time.

Lubomir