rdp: allow to compile against FreeRDP 2.0

FreeRDP 2.0 is about to be released, this allows to compile against this version.
The detection is adjusted to prefer FreeRDP 2 against version 1.x.

Signed-off-by: David Fort <contact@hardening-consulting.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

configure.ac

@@ -238,7 +238,10 @@ AM_CONDITIONAL([ENABLE_RDP_COMPOSITOR],
                [test x$enable_rdp_compositor = xyes])
 if test x$enable_rdp_compositor = xyes; then
   AC_DEFINE([BUILD_RDP_COMPOSITOR], [1], [Build the RDP compositor])
-  PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])
+  PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp2 >= 2.0.0],
+    [],
+    [PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0],[])]
+  )
 
   SAVED_CPPFLAGS="$CPPFLAGS"
   CPPFLAGS="$CPPFLAGS $RDP_COMPOSITOR_CFLAGS"

src/compositor-rdp.c

@@ -42,15 +42,24 @@
 #define FREERDP_VERSION_NUMBER ((FREERDP_VERSION_MAJOR * 0x10000) + \
 		(FREERDP_VERSION_MINOR * 0x100) + FREERDP_VERSION_REVISION)
 
+
 #if FREERDP_VERSION_NUMBER >= 0x10201
 #define HAVE_SKIP_COMPRESSION
 #endif
 
 #if FREERDP_VERSION_NUMBER < 0x10202
-#define FREERDP_CB_RET_TYPE void
-#define FREERDP_CB_RETURN(V) return
+#	define FREERDP_CB_RET_TYPE void
+#	define FREERDP_CB_RETURN(V) return
+#	define NSC_RESET(C, W, H)
+#	define RFX_RESET(C, W, H) do { rfx_context_reset(C); C->width = W; C->height = H; } while(0)
+#else
+#if FREERDP_VERSION_MAJOR >= 2
+#	define NSC_RESET(C, W, H) nsc_context_reset(C, W, H)
+#	define RFX_RESET(C, W, H) rfx_context_reset(C, W, H)
 #else
-#define HAVE_NSC_RESET
+#	define NSC_RESET(C, W, H) do { nsc_context_reset(C); C->width = W; C->height = H; } while(0)
+#	define RFX_RESET(C, W, H) do { rfx_context_reset(C); C->width = W; C->height = H; } while(0)
+#endif
 #define FREERDP_CB_RET_TYPE BOOL
 #define FREERDP_CB_RETURN(V) return TRUE
 #endif
@@ -795,6 +804,7 @@ xf_peer_activate(freerdp_peer* client)
 	struct xkb_context *xkbContext;
 	struct xkb_rule_names xkbRuleNames;
 	struct xkb_keymap *keymap;
+	struct weston_output *weston_output;
 	int i;
 	pixman_box32_t box;
 	pixman_region32_t damage;
@@ -843,10 +853,9 @@ xf_peer_activate(freerdp_peer* client)
 		}
 	}
 
-	rfx_context_reset(peerCtx->rfx_context);
-#ifdef HAVE_NSC_RESET
-	nsc_context_reset(peerCtx->nsc_context);
-#endif
+	weston_output = &output->base;
+	RFX_RESET(peerCtx->rfx_context, weston_output->width, weston_output->height);
+	NSC_RESET(peerCtx->nsc_context, weston_output->width, weston_output->height);
 
 	if (peersItem->flags & RDP_PEER_ACTIVATED)
 		return TRUE;