qcam, cam: Move DNGWriter from qcam to cam

To prepare for adding DNG support to cam, move DNGWriter from qcam to
cam so that we only have inclusions from qcam to cam and not the other
way around.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/cam/meson.build

@@ -26,6 +26,7 @@ cam_cpp_args = []
 libdrm = dependency('libdrm', required : false)
 libjpeg = dependency('libjpeg', required : false)
 libsdl2 = dependency('SDL2', required : false)
+libtiff = dependency('libtiff-4', required : false)
 
 if libdrm.found()
     cam_cpp_args += [ '-DHAVE_KMS' ]

src/qcam/main_window.cpp

@@ -26,10 +26,10 @@
 #include <QToolButton>
 #include <QtDebug>
 
+#include "../cam/dng_writer.h"
 #include "../cam/image.h"
 
 #include "cam_select_dialog.h"
-#include "dng_writer.h"
 #ifndef QT_NO_OPENGL
 #include "viewfinder_gl.h"
 #endif

src/qcam/meson.build

@@ -49,7 +49,7 @@ if tiff_dep.found()
     qt5_cpp_args += ['-DHAVE_TIFF']
     qcam_deps += [tiff_dep]
     qcam_sources += files([
-        'dng_writer.cpp',
+        '../cam/dng_writer.cpp',
     ])
 endif