1 files changed, 92 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_ViewerBaseOperation.cpp b/source/blender/compositor/operations/COM_ViewerBaseOperation.cpp
new file mode 100644
index 00000000000..16143af7165
--- /dev/null
+++ b/source/blender/compositor/operations/COM_ViewerBaseOperation.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#include "COM_ViewerBaseOperation.h"
+#include "COM_SocketConnection.h"
+#include "BLI_listbase.h"
+#include "DNA_scene_types.h"
+#include "BKE_image.h"
+#include "WM_api.h"
+#include "WM_types.h"
+#include "PIL_time.h"
+#include "BLI_utildefines.h"
+#include "BLI_math_color.h"
+
+extern "C" {
+	#include "MEM_guardedalloc.h"
+	#include "IMB_imbuf.h"
+	#include "IMB_imbuf_types.h"
+}
+
+
+ViewerBaseOperation::ViewerBaseOperation() : NodeOperation() {
+	this->setImage(NULL);
+	this->setImageUser(NULL);
+	this->outputBuffer = NULL;
+	this->outputBufferDisplay = NULL;
+	this->active = false;
+	this->doColorManagement = true;
+}
+
+void ViewerBaseOperation::initExecution() {
+	// When initializing the tree during initial load the width and height can be zero.
+	initImage();
+}
+
+void ViewerBaseOperation::initImage() {
+	Image* anImage = this->image;
+	ImBuf *ibuf= BKE_image_acquire_ibuf(anImage, this->imageUser, &this->lock);
+	
+	if (!ibuf) return;
+	if (ibuf->x != (int)getWidth() || ibuf->y != (int)getHeight()) {
+		imb_freerectImBuf(ibuf);
+		imb_freerectfloatImBuf(ibuf);
+		IMB_freezbuffloatImBuf(ibuf);
+		ibuf->x= getWidth();
+		ibuf->y= getHeight();
+		imb_addrectImBuf(ibuf);
+		imb_addrectfloatImBuf(ibuf);
+		anImage->ok= IMA_OK_LOADED;
+	}
+	
+	/* now we combine the input with ibuf */
+	this->outputBuffer = ibuf->rect_float;
+	this->outputBufferDisplay = (unsigned char*)ibuf->rect;
+	
+	BKE_image_release_ibuf(this->image, this->lock);
+}
+void ViewerBaseOperation:: updateImage(rcti *rect) {
+	/// @todo: introduce new event to update smaller area
+	WM_main_add_notifier(NC_WINDOW|ND_DRAW, NULL);
+}
+
+void ViewerBaseOperation::deinitExecution() {
+	this->outputBuffer = NULL;
+}
+
+const int ViewerBaseOperation::getRenderPriority() const {
+	if (this->isActiveViewerOutput()) {
+		return 8;
+	} else {
+		return 0;
+	}
+}