grabber api and feature unification (#462)

* move setvideomode to common place

* implement more croping and 3d support

* more api unification

* more refactoring

* osx fix

* next step

* add a mock for osx grabber. Now it is possible to test compile on none osx platforms.

* more unifications ...

* remove obsolete includes and grabbers are not dyn allocated. dispmanx needs rework an probaly not work atm

* first version of dispmanx mock. it compiles, but outputs a black image

* now dispmanx mock works!

* activate mocks in travis linux build
prepare dispmanx to rgb image out

* dispmanx now with image rgb output
fix deadlock with w/h -1 in grabber v4l
cleanups

* fix json

* fix some runtime stuff

* Update FramebufferWrapper.cpp

fix missing code

* unify grabframe

* 3d and croping for amlogic

* fix setimage not working

* make use of templates
save some codelines

* save more code lines

CMakeLists.txt

@@ -95,6 +95,9 @@ if ( "${PLATFORM}" MATCHES "-dev" )
 	SET ( DEFAULT_TESTS      ON )
 endif()
 
+STRING( TOUPPER "-DPLATFORM_${PLATFORM}" PLATFORM_DEFINE)
+STRING( REPLACE "-DEV" "" PLATFORM_DEFINE "${PLATFORM_DEFINE}" )
+ADD_DEFINITIONS( ${PLATFORM_DEFINE} )
 
 # set the build options
 option(ENABLE_AMLOGIC "Enable the AMLOGIC video grabber" ${DEFAULT_AMLOGIC} )
@@ -240,7 +243,7 @@ add_definitions(${QT_DEFINITIONS})
 #	link_directories(${CMAKE_FIND_ROOT_PATH}/lib/arm-linux-gnueabihf)
 #endif()
 
-if(ENABLE_OSX)
+if(APPLE)
 	set(CMAKE_EXE_LINKER_FLAGS "-framework CoreGraphics")
 endif()