From 72e170d67a1d6f3484d3a62a51bdb65719bbb2a6 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Tue, 19 Jun 2012 17:29:58 +0000
Subject: Implementation of node for track position input

---
 .../operations/COM_TrackPositionOperation.cpp      | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 source/blender/compositor/operations/COM_TrackPositionOperation.cpp

(limited to 'source/blender/compositor/operations/COM_TrackPositionOperation.cpp')

diff --git a/source/blender/compositor/operations/COM_TrackPositionOperation.cpp b/source/blender/compositor/operations/COM_TrackPositionOperation.cpp
new file mode 100644
index 00000000000..359e973adc7
--- /dev/null
+++ b/source/blender/compositor/operations/COM_TrackPositionOperation.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2012, 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
+ *		Sergey Sharybin
+ */
+
+#include "COM_TrackPositionOperation.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_listbase.h"
+#include "BLI_math.h"
+#include "BLI_math_color.h"
+
+#include "DNA_scene_types.h"
+
+extern "C" {
+	#include "BKE_movieclip.h"
+	#include "BKE_tracking.h"
+}
+
+TrackPositionOperation::TrackPositionOperation() : NodeOperation()
+{
+	this->addOutputSocket(COM_DT_VALUE);
+	this->movieClip = NULL;
+	this->framenumber = 0;
+	this->trackingObject[0] = 0;
+	this->trackName[0] = 0;
+	this->axis = 0;
+}
+
+void TrackPositionOperation::executePixel(float *outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
+{
+	MovieClipUser user = {0};
+	MovieTracking *tracking = &movieClip->tracking;
+	MovieTrackingObject *object = BKE_tracking_object_get_named(tracking, this->trackingObject);
+	MovieTrackingTrack *track;
+	MovieTrackingMarker *marker;
+	int width, height;
+
+	outputValue[0] = 0.0f;
+
+	if (!object)
+		return;
+
+	track = BKE_tracking_track_get_named(tracking, object, this->trackName);
+
+	if (!track)
+		return;
+
+	BKE_movieclip_user_set_frame(&user, this->framenumber);
+	BKE_movieclip_get_size(this->movieClip, &user, &width, &height);
+
+	marker = BKE_tracking_marker_get(track, this->framenumber);
+
+	outputValue[0] = marker->pos[this->axis];
+
+	if (this->axis == 0)
+		outputValue[0] *= width;
+	else
+		outputValue[0] *= height;
+}
+
+void TrackPositionOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[])
+{
+	resolution[0] = preferredResolution[0];
+	resolution[1] = preferredResolution[1];
+}
-- 
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