ScaledPixelBuffer class code improvements. Remove scale
parameter. Now we set the scale using setScaleRatio. It
improve the accuracy of scaling operation.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@639 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/ScaledPixelBuffer.h b/common/rfb/ScaledPixelBuffer.h
index 17da5d6..7ac3187 100644
--- a/common/rfb/ScaledPixelBuffer.h
+++ b/common/rfb/ScaledPixelBuffer.h
@@ -48,7 +48,8 @@
int getSrcWidth() const { return src_width; }
int getSrcHeight() const { return src_height; }
int area() const { return scaled_width * scaled_height; }
- int getScale() const { return scale; }
+ int getScale() const { return int(scale_ratio + 0.5); }
+ double getScaleRatio() const { return scale_ratio; }
// Get rectangle encompassing this buffer
// Top-left of rectangle is either at (0,0), or the specified point.
@@ -64,7 +65,8 @@
void setPF(const PixelFormat &pf);
// Set the new scale, in percent
- virtual void setScale(int scale);
+ virtual void setScale(int scale) { setScaleRatio(double(scale)/100.0); }
+ virtual void setScaleRatio(double scale_ratio);
// Scale rect from the source image buffer to the destination buffer
// using bilinear interpolation
@@ -86,7 +88,6 @@
int scaled_width;
int scaled_height;
PixelFormat pf;
- int scale;
double scale_ratio;
U8 **src_data;
U8 *scaled_data;