qtvideosink: Distribute classes into subdirectories for easier code navigation

1 files changed, 76 insertions, 0 deletions

diff --git a/elements/gstqtvideosink/utils/utils.cpp b/elements/gstqtvideosink/utils/utils.cpp
new file mode 100644
index 0000000..c62100b
--- /dev/null
+++ b/elements/gstqtvideosink/utils/utils.cpp
@@ -0,0 +1,76 @@
+/*
+    Copyright (C) 2011-2012 Collabora Ltd. <info@collabora.com>
+
+    This library is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 2.1
+    as published by the Free Software Foundation.
+
+    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 Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "utils.h"
+
+/*
+ * Modified version of gst_video_sink_center_rect
+ * Copyright (C) Julien Moutte <julien@moutte.net>
+ */
+static QRectF centerRect(const QRectF & src, const QRectF & dst)
+{
+    QRectF result = dst;
+    qreal srcRatio = src.width() / src.height();
+    qreal dstRatio = dst.width() / dst.height();
+
+    if (srcRatio > dstRatio) {
+        result.setWidth(dst.width());
+        result.setHeight(dst.width() / srcRatio);
+        result.moveTop(result.top() + ((dst.height() - result.height()) / 2));
+    } else if (srcRatio < dstRatio) {
+        result.setWidth(dst.height() * srcRatio);
+        result.setHeight(dst.height());
+        result.moveLeft(result.left() + ((dst.width() - result.width()) / 2));
+    }
+
+    return result;
+}
+
+void PaintAreas::calculate(const QRectF & _targetArea,
+        const QSize & frameSize,
+        const Fraction & pixelAspectRatio,
+        const Fraction & displayAspectRatio)
+{
+    targetArea = _targetArea;
+
+    qreal aspectRatio = pixelAspectRatio.ratio() * displayAspectRatio.invRatio();
+    QRectF srcRect(QPointF(0,0), QSizeF(frameSize.width() * aspectRatio, frameSize.height()));
+
+    videoArea = centerRect(srcRect, targetArea);
+
+    if (videoArea == targetArea) {
+        blackArea1 = blackArea2 = QRectF();
+    } else {
+        blackArea1 = QRectF(
+            targetArea.left(),
+            targetArea.top(),
+            videoArea.left() == targetArea.left() ?
+                targetArea.width() : videoArea.left() - targetArea.left(),
+            videoArea.top() == targetArea.top() ?
+                targetArea.height() : videoArea.top() - targetArea.top()
+        );
+
+        blackArea2 = QRectF(
+            videoArea.right() == targetArea.right() ?
+                targetArea.left() : videoArea.right(),
+            videoArea.bottom() == targetArea.bottom() ?
+                targetArea.top() : videoArea.bottom(),
+            videoArea.right() == targetArea.right() ?
+                targetArea.width() : targetArea.right() - videoArea.right(),
+            videoArea.bottom() == targetArea.bottom() ?
+                targetArea.height() : targetArea.bottom() - videoArea.bottom()
+        );
+    }
+}