Built SDL2_image and _mixer static

libsdl2_image/external/tiff-4.0.9/contrib/win_dib/README.Tiffile

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+Frank,
+
+I attached a file that uses RGBA interface (tif_getimage.c) to read a tiff
+file and convert to a DIB.  It's advantage is that it is easy to read *any*
+tiff file suported by libtiff and easily convert it to a DIB.  The disadvantage
+is that bilevel (B&W) bitmaps (and all other non-rgba images) are also 
+converted to RGBA, thus taking up 32x as much memory as needed (4 bytes per 
+pixel, rather than 1 bit).  I read tiff files, but don't need to
+write them.  And my files are typically small, so the overhead is mostly
+inconsequential.  But for bilevel images, I overrode the get() and put()
+routines of the RGBA interface to just copy the data from the input raster
+to the output raster, rather than expanding out to full 32 bit format.  It
+would be nice if there were a simple way to handle all palletized images,
+but that would take more custom routines, and it's not that important to me.
+
+Usage:
+
+    m_pDIB = (PBITMAPINFOHEADER)::ReadTIFF(pathName);
+    if (m_pDIB != 0) {
+       m_format = IMAGETYPE_TIF;
+    }
+
+This is intended as Win32, but the modifications for new get() and put()
+routines may be independent of platform.
+
+Thanks for your work supporting the forum and the library!
+
+Regards,
+
+Mark James
+mark@james.net