There's no point continuing without WDDM as CCD cannot work without it.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Sameeh Jubran <sameeh@daynix.com>
wcsncpy requires number of characters, not bytes.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
The Direct3D 9 API operates on either the Windows XP display driver
model (XPDM) or the Windows Vista display driver model (WDDM), depending
on the operating system installed.
This patch implements the WDDM interface while using the CCD API to do
so. Moreover it introduces multiple monitors support and arbitrary
resolution for Windows 10 while preserving backward compatiblity with
previous versions of Windows.
Based on a patch by Sandy Stutsman <sstutsma at redhat.com>
Signed-off-by: Dmitry Fleytman <dfleytma at redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The buffers and buffer sizes should be initialized and allocated. This
patch fixes a possible case where vdagent can get stuck, as the
function _pfnQueryDisplayConfig can return ERROR_INVALID_PARAMETER
if the buffers aren't intialized.
The call to free_config_buffers is superfluous because it is called
inside get_config_buffers.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The Direct3D 9 API operates on either the Windows XP display driver
model (XPDM) or the Windows Vista display driver model (WDDM), depending
on the operating system installed.
This patch encapsulates the current XPDM interface implementation into
XPDMInterface class which inherits DisplayConfig class. This patch
makes it easier to introduce WDDM interface to Vdagent in future
patches.
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Dmitry Fleytman <dfleytma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The Connecting and Configuring Displays (CCD) Win32 APIs
provide more control over the desktop display setup. The CCD APIs
move away from using Windows Graphics Device Interface (GDI)
concepts like view name and toward Windows Display Driver Model
(WDDM) concepts like adapter, source, and target identifiers.
More info on the CCD API can be found here:
https://msdn.microsoft.com/en-us/library/windows/hardware/ff539590(v=vs.85).aspx
This patch introduces partial functionality from the CCD API
needed by vdagent. It is needed by vdagent in order to support
multiple monitors and arbitrary resolution on Windows 10.
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Dmitry Fleytman <dfleytma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
