Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@589 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/ScaledPixelBuffer.h b/common/rfb/ScaledPixelBuffer.h
new file mode 100644
index 0000000..3b6aa7e
--- /dev/null
+++ b/common/rfb/ScaledPixelBuffer.h
@@ -0,0 +1,85 @@
+/* Copyright (C) 2005 TightVNC Team. All Rights Reserved.
+ *
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+// -=- ScaledPixelBuffer.h
+//
+// The ScaledPixelBuffer class allows to scale the image data
+// from the source buffer to destination buffer using bilinear
+// interpolation.
+
+#include <rdr/types.h>
+#include <rfb/Rect.h>
+
+using namespace rdr;
+
+namespace rfb {
+
+ class ScaledPixelBuffer {
+ public:
+ ScaledPixelBuffer(U8 **data, int width, int height, int scale);
+ ScaledPixelBuffer();
+ virtual ~ScaledPixelBuffer();
+
+ // Get width, height, number of pixels and scale
+ int width() const { return scaled_width; }
+ int height() const { return scaled_height; }
+ int area() const { return scaled_width * scaled_height; }
+ int getScale() const { return scale; }
+
+ // Get rectangle encompassing this buffer
+ // Top-left of rectangle is either at (0,0), or the specified point.
+ Rect getRect() const { return Rect(0, 0, scaled_width, scaled_height); }
+ Rect getRect(const Point& pos) const {
+ return Rect(pos, pos.translate(Point(scaled_width, scaled_height)));
+ }
+
+ // Set the new source buffer and its parameters
+ void setSourceBuffer(U8 **src_data, int w, int h);
+
+ // Set the new scale, in percent
+ virtual void setScale(int scale);
+
+ // Scale rect from the source image buffer to the destination buffer
+ // using bilinear interpolation
+ virtual void scaleRect(const Rect& r);
+
+ // Calculate the scaled image rectangle which depend on the source
+ // image rectangle.
+ inline Rect calculateScaleBoundary(const Rect& r);
+
+ protected:
+
+ // Calculate the scaled buffer size depending on the source buffer
+ // parameters (width, height, pixel format)
+ void calculateScaledBufferSize();
+
+ // Recreate the scaled pixel buffer
+ virtual void recreateScaledBuffer();
+
+ int src_width;
+ int src_height;
+ int scaled_width;
+ int scaled_height;
+ int bpp;
+ int scale;
+ double scale_ratio;
+ U8 **src_data;
+ U8 *scaled_data;
+ };
+
+};