Remove ScaleFilters

This has been unused since 9fe3479.

3 files changed, 0 insertions, 211 deletions

diff --git a/common/rfb/CMakeLists.txt b/common/rfb/CMakeLists.txt
index 360434a9..d7fb3f3a 100644
--- a/common/rfb/CMakeLists.txt
+++ b/common/rfb/CMakeLists.txt
@@ -50,7 +50,6 @@ add_library(rfb STATIC
   SSecurityStack.cxx
   SSecurityVncAuth.cxx
   SSecurityVeNCrypt.cxx
-  ScaleFilters.cxx
   Timer.cxx
   TightDecoder.cxx
   TightEncoder.cxx
diff --git a/common/rfb/ScaleFilters.cxx b/common/rfb/ScaleFilters.cxx
deleted file mode 100644
index 823dc740..00000000
--- a/common/rfb/ScaleFilters.cxx
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Copyright (C) 2006 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-#include <assert.h>
-#include <math.h>
-
-#include <rfb/Rect.h>
-#include <rfb/ScaleFilters.h>
-
-using namespace rfb;
-
-//
-// -=- 1-D filters functions
-//
-
-// Nearest neighbor filter function
-double nearest_neighbor(double x) {
-  if (x < -0.5) return 0.0;
-  if (x < 0.5) return 1.0;
-  return 0.0;
-}
-
-// Linear filter function
-double linear(double x) {
-  if (x < -1.0) return 0.0;
-  if (x < 0.0) return 1.0+x;
-  if (x < 1.0) return 1.0-x;
-  return 0.0;
-}
-
-// Cubic filter functions
-double cubic(double x) {
-  double t;
-  if (x < -2.0) return 0.0;
-  if (x < -1.0) {t = 2.0+x; return t*t*t/6.0;}
-  if (x < 0.0) return (4.0+x*x*(-6.0+x*-3.0))/6.0;
-  if (x < 1.0) return (4.0+x*x*(-6.0+x*3.0))/6.0;
-  if (x < 2.0) {t = 2.0-x; return t*t*t/6.0;}
-  return 0.0;
-}
-
-
-//
-// -=- ScaleFilters class
-//
-
-SFilter &ScaleFilters::operator[](unsigned int filter_id) {
-  assert(filter_id <= scaleFilterMaxNumber);
-  return filters[filter_id];
-}
-
-int ScaleFilters::getFilterIdByName(char *filterName) {
-  for (unsigned int i = 0; i <= scaleFilterMaxNumber; i++) {
-    if (strcasecmp(filters[i].name, filterName) == 0) return i;
-  }
-  return -1;
-}
-
-void ScaleFilters::initFilters() {
-  filters[scaleFilterNearestNeighbor] = create("Nearest neighbor", 0.5, nearest_neighbor);
-  filters[scaleFilterBilinear] = create("Bilinear", 1, linear);
-  filters[scaleFilterBicubic] = create("Bicubic", 2, cubic);
-}
-
-SFilter ScaleFilters::create(const char *name_, double radius_, filter_func func_) {
-  SFilter filter;
-  strncpy(filter.name, name_, sizeof(filter.name)-1); 
-  filter.name[sizeof(filter.name)-1] = '\0';
-  filter.radius = radius_;
-  filter.func = func_;
-  return filter;
-}
-
-void ScaleFilters::makeWeightTabs(int filter_id, int src_x, int dst_x, SFilterWeightTab **pWeightTabs) {
-  double sxc;
-  double offset = 0.5;
-  double ratio = (double)dst_x / src_x;
-  double sourceScale  = __rfbmax(1.0, 1.0/ratio);
-  double sourceRadius = __rfbmax(0.5, sourceScale * filters[filter_id].radius);
-  double sum, nc;
-  int i, ci;
-
-  SFilter sFilter = filters[filter_id];
-  
-  *pWeightTabs = new SFilterWeightTab[dst_x];
-  SFilterWeightTab *weightTabs = *pWeightTabs;
-
-  // Make the weight tab for the each dest x position
-  for (int x = 0; x < dst_x; x++) {
-    sxc = (double(x)+offset) / ratio;
-
-    // Calculate the scale filter interval, [i0, i1)
-    int i0 = int(__rfbmax(sxc-sourceRadius+0.5, 0));
-    int i1 = int(__rfbmin(sxc+sourceRadius+0.5, src_x));
-
-    weightTabs[x].i0 = i0; weightTabs[x].i1 = i1;
-    weightTabs[x].weight = new short[i1-i0];
-
-    // Calculate coeff to normalize the filter weights
-    for (sum = 0, i = i0; i < i1; i++) sum += sFilter.func((double(i)-sxc+0.5)/sourceScale);
-    if (sum == 0.) nc = (double)(WEIGHT_OF_ONE); else nc = (double)(WEIGHT_OF_ONE)/sum;
-
-
-    // Calculate the weight coeffs on the scale filter interval
-    for (ci = 0, i = i0; i < i1; i++) {
-      weightTabs[x].weight[ci++] = (short)floor((sFilter.func((double(i)-sxc+0.5)/sourceScale) * nc) + 0.5);
-    }
-  }
-}
diff --git a/common/rfb/ScaleFilters.h b/common/rfb/ScaleFilters.h
deleted file mode 100644
index 23c87b64..00000000
--- a/common/rfb/ScaleFilters.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* Copyright (C) 2006 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.
- */
-
-// -=- ScaleFilters.h
-//
-// Definitions of the 1-D filters and routines using for the image scaling.
-//  
-// 
-
-namespace rfb {
-
-  #define SCALE_ERROR (1e-7)
-  #define BITS_OF_CHANEL 8
-  #define BITS_OF_WEIGHT 14
-  #define FINALSHIFT (2 * BITS_OF_WEIGHT - BITS_OF_CHANEL)
-  #define WEIGHT_OF_ONE (1 << BITS_OF_WEIGHT)
-
-  typedef double (*filter_func)(double x);
-
-  const double pi = 3.14159265358979;
-
-  const unsigned int scaleFilterNearestNeighbor = 0;
-  const unsigned int scaleFilterBilinear = 1;
-  const unsigned int scaleFilterBicubic = 2;
-
-  const unsigned int scaleFilterMaxNumber = 2;
-  const unsigned int defaultScaleFilter = scaleFilterBilinear;
-
-  //
-  // -=- Scale filters structures and routines
-  //
-
-  // Scale filter stuct
-  typedef struct {
-    char name[30];     // Filter name
-    double radius;     // Radius where filter function is nonzero
-    filter_func func;  // Pointer to filter function
-  } SFilter;
-
-  // Scale filter weight table
-  typedef struct {
-    short i0, i1;  // Filter function interval, [i0..i1)
-    short *weight;    // Weight coefficients on the filter function interval
-  } SFilterWeightTab;
-
-
-  // ScaleFilters class helps us using a set of 1-d scale filters.
-  class ScaleFilters {
-  public:
-    ScaleFilters() { initFilters(); };
-
-    SFilter &operator[](unsigned int filter_id);
-
-    int getFilterIdByName(char *filterName);
-
-    void makeWeightTabs(int filter, int src_x, int dst_x, SFilterWeightTab **weightTabs);
-
-  protected:
-    void initFilters();
-
-    SFilter create(const char *name_, double radius_, filter_func func_);
-
-    SFilter filters[scaleFilterMaxNumber+1];
-  };
-
-};