Remove the scaled pixel buffer classes as they are not used.

There were also reports of them being broken last time we still
made use of them.

3 files changed, 0 insertions, 354 deletions

diff --git a/common/rfb/CMakeLists.txt b/common/rfb/CMakeLists.txt
index 27e3caa5..0300105a 100644
--- a/common/rfb/CMakeLists.txt
+++ b/common/rfb/CMakeLists.txt
@@ -52,7 +52,6 @@ set(RFB_SOURCES
   SSecurityStack.cxx
   SSecurityVncAuth.cxx
   SSecurityVeNCrypt.cxx
-  ScaledPixelBuffer.cxx
   ScaleFilters.cxx
   Timer.cxx
   TightDecoder.cxx
diff --git a/common/rfb/ScaledPixelBuffer.cxx b/common/rfb/ScaledPixelBuffer.cxx
deleted file mode 100644
index dc6096d7..00000000
--- a/common/rfb/ScaledPixelBuffer.cxx
+++ /dev/null
@@ -1,225 +0,0 @@
-/* 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.cxx
-
-#include <rfb/Exception.h>
-#include <rfb/ScaledPixelBuffer.h>
-
-#include <math.h>
-#include <memory.h>
-#include <stdlib.h>
-
-using namespace rdr;
-using namespace rfb;
-
-ScaledPixelBuffer::ScaledPixelBuffer(U8 **src_data_, int src_width_,
-                                     int src_height_, int scale_, PixelFormat pf_)
-  : scale(scale_), scale_ratio_x(1), scale_ratio_y(1), scaleFilterID(scaleFilterBilinear),
-    xWeightTabs(0), yWeightTabs(0), raccum(0), gaccum(0), baccum(0), scaled_data(0) {
-
-  setSourceBuffer(src_data_, src_width_, src_height_);
-  setPF(pf_);
-}
-
-ScaledPixelBuffer::ScaledPixelBuffer() 
-  : src_width(0), src_height(0), scaled_width(0), scaled_height(0), scale(100), 
-    scale_ratio_x(1), scale_ratio_y(1), scaleFilterID(scaleFilterBilinear),
-    xWeightTabs(0), yWeightTabs(0), raccum(0), gaccum(0), baccum(0),
-    src_data(0), scaled_data(0) {
-  memset(&pf, 0, sizeof(pf));
-}
-
-ScaledPixelBuffer::~ScaledPixelBuffer() {
-  freeWeightTabs();
-  if (raccum) delete [] raccum;
-  if (gaccum) delete [] gaccum;
-  if (baccum) delete [] baccum;
-}
-
-void ScaledPixelBuffer::freeWeightTabs() {
-  if (xWeightTabs) {
-    for (int i = 0; i < scaled_width; i++) delete [] xWeightTabs[i].weight;
-    delete [] xWeightTabs;
-    xWeightTabs = 0;
-  }
-  if (yWeightTabs) {
-    for (int i = 0; i < scaled_height; i++) delete [] yWeightTabs[i].weight;
-    delete [] yWeightTabs;
-    yWeightTabs = 0;
-  }
-}
-
-void ScaledPixelBuffer::recreateRowAccum() {
-  if (raccum) delete [] raccum;
-  if (gaccum) delete [] gaccum;
-  if (baccum) delete [] baccum;
-  raccum = new int[src_width];
-  gaccum = new int[src_width];
-  baccum = new int[src_width];
-}
-
-void ScaledPixelBuffer::setSourceBuffer(U8 **src_data_, int w, int h) {
-  if (w > 0 && h > 0 && src_data_ != NULL) {
-    freeWeightTabs();
-    src_data = src_data_;
-    src_width  = w;
-    src_height = h;
-    recreateRowAccum();
-    calculateScaledBufferSize();
-    scaleFilters.makeWeightTabs(scaleFilterID, src_width, scaled_width, &xWeightTabs);
-    scaleFilters.makeWeightTabs(scaleFilterID, src_height, scaled_height, &yWeightTabs);
-  }
-}
-
-void ScaledPixelBuffer::setPF(const PixelFormat &pf_) {
-  ///if (pf_.depth != 24) throw rfb::UnsupportedPixelFormatException();
-  pf = pf_;
-}
-
-void ScaledPixelBuffer::setScale(int scale_) {
-  if (scale != scale_ && scale_ > 0) {
-    scale = scale_;
-    freeWeightTabs();
-    calculateScaledBufferSize();
-    scaleFilters.makeWeightTabs(scaleFilterID, src_width, scaled_width, &xWeightTabs);
-    scaleFilters.makeWeightTabs(scaleFilterID, src_height, scaled_height, &yWeightTabs);
-  }
-}
-
-void ScaledPixelBuffer::setScaleFilter(unsigned int scaleFilterID_) {
-  if (scaleFilterID == scaleFilterID_ || scaleFilterID_ > scaleFilterMaxNumber) return;
-
-  scaleFilterID = scaleFilterID_;
-  
-  if (src_width && src_height && scaled_width && scaled_height) {
-    freeWeightTabs();
-    scaleFilters.makeWeightTabs(scaleFilterID, src_width, scaled_width, &xWeightTabs);
-    scaleFilters.makeWeightTabs(scaleFilterID, src_height, scaled_height, &yWeightTabs);
-    if (scale != 100 && pf.depth > 0 && scaled_data) scaleRect(Rect(0, 0, src_width, src_height));
-  }
-}
-
-inline U32 ScaledPixelBuffer::getSourcePixel(int x, int y) {
-  int bytes_per_pixel = pf.bpp / 8;
-  U8 *ptr = &(*src_data)[(x + y*src_width)*bytes_per_pixel];
-  if (bytes_per_pixel == 1) {
-    return *ptr;
-  } else if (bytes_per_pixel == 2) {
-    int b0 = *ptr++; int b1 = *ptr;
-    return b1 << 8 | b0;
-  } else if (bytes_per_pixel == 4) {
-    int b0 = *ptr++; int b1 = *ptr++;
-    int b2 = *ptr++; int b3 = *ptr;
-    return b3 << 24 | b2 << 16 | b1 << 8 | b0;
-  } else {
-    return 0;
-  }
-}
-
-void ScaledPixelBuffer::scaleRect(const Rect& rect) {
-  Rect changed_rect;
-  U8 *ptr, *ptrs, *px, *pxs;
-  U16 r, g, b;
-  int red, green, blue;
-  short *xweight, *yweight, weight;
-
-  // Calculate the changed pixel rect in the scaled image
-  changed_rect = calculateScaleBoundary(rect);
-
-  int bytesPerSrcPixel = pf.bpp / 8;
-  int bytesPerSrcRow = src_width * bytesPerSrcPixel;
-  int bytesPerScaledRow = scaled_width * 4;
-
-  int bytesPerAccumRow = src_width * sizeof(int);
-
-  ptrs = &(*scaled_data)[(changed_rect.tl.x + changed_rect.tl.y*scaled_width) * 4];
-  for (int y = changed_rect.tl.y; y < changed_rect.br.y; y++) {
-    ptr = ptrs;
-    yweight = yWeightTabs[y].weight;
-
-    // Clear the color accumulators
-    memset(raccum, 0, bytesPerAccumRow);
-    memset(gaccum, 0, bytesPerAccumRow);
-    memset(baccum, 0, bytesPerAccumRow);
-
-    // Make the convolution the source image with scale filter weights
-    // by y axis and save results to the color accumulators.
-    pxs = &(*src_data)[(xWeightTabs[changed_rect.tl.x].i0 + yWeightTabs[y].i0*src_width) * bytesPerSrcPixel];
-    for (int ys = yWeightTabs[y].i0; ys < yWeightTabs[y].i1; ys++) {
-      px = pxs;
-      for (int xs = xWeightTabs[changed_rect.tl.x].i0; xs < xWeightTabs[changed_rect.br.x-1].i1; xs++) {
-        pf.rgbFromPixel(*((U32*)px), NULL, &r, &g, &b);
-        weight = *yweight;
-        raccum[xs] += (int)(weight) * r;
-        gaccum[xs] += (int)(weight) * g;
-        baccum[xs] += (int)(weight) * b;
-        px += bytesPerSrcPixel;
-      }
-      yweight++;
-      pxs += bytesPerSrcRow;
-    }
-
-    // Make the convolution the color accumulators with scale filter weights
-    // by x axis and save results to the scaled image.
-    for (int x = changed_rect.tl.x; x < changed_rect.br.x; x++) {
-      // Init the sum of colors with (1 << (shift-1)) for rounding.
-      red = green = blue = 1 << (FINALSHIFT-1);
-      xweight = xWeightTabs[x].weight;
-      for (int xs = xWeightTabs[x].i0; xs < xWeightTabs[x].i1; xs++) {
-        weight = *xweight;
-        red   += (int)(weight) * (raccum[xs] >> BITS_OF_CHANEL);
-        green += (int)(weight) * (gaccum[xs] >> BITS_OF_CHANEL);
-        blue  += (int)(weight) * (baccum[xs] >> BITS_OF_CHANEL);
-        xweight++;
-      }
-      *ptr++ = U8(blue  >> FINALSHIFT);
-      *ptr++ = U8(green >> FINALSHIFT);
-      *ptr++ = U8(red   >> FINALSHIFT);
-      ptr++;
-    }
-    ptrs += bytesPerScaledRow;
-  }
-}
-
-Rect ScaledPixelBuffer::calculateScaleBoundary(const Rect& r) {
-  int x_start, y_start, x_end, y_end;
-  double translate_x = 0.5*scale_ratio_x - 0.5;
-  double translate_y = 0.5*scale_ratio_y - 0.5;
-  double sourceXScale  = __rfbmax(1.0, 1.0/scale_ratio_x);
-  double sourceYScale  = __rfbmax(1.0, 1.0/scale_ratio_y);
-  double sourceXRadius = __rfbmax(0.5, sourceXScale*scaleFilters[scaleFilterID].radius);
-  double sourceYRadius = __rfbmax(0.5, sourceYScale*scaleFilters[scaleFilterID].radius);
-  x_start = (int)ceil(scale_ratio_x*(r.tl.x-sourceXRadius) + translate_x + SCALE_ERROR);
-  y_start = (int)ceil(scale_ratio_y*(r.tl.y-sourceYRadius) + translate_y + SCALE_ERROR);
-  x_end   = (int)floor(scale_ratio_x*((r.br.x-1)+sourceXRadius) + translate_x - SCALE_ERROR) + 1;
-  y_end   = (int)floor(scale_ratio_y*((r.br.y-1)+sourceXRadius) + translate_y - SCALE_ERROR) + 1;
-  if (x_start < 0) x_start = 0;
-  if (y_start < 0) y_start = 0;
-  if (x_end > scaled_width) x_end = scaled_width;
-  if (y_end > scaled_height) y_end = scaled_height;
-  return Rect(x_start, y_start, x_end, y_end);
-}
-
-void ScaledPixelBuffer::calculateScaledBufferSize() {
-  double scale_ratio = (double)scale / 100;
-  scaled_width  = (int)ceil(src_width  * scale_ratio);
-  scaled_height = (int)ceil(src_height * scale_ratio);
-  scale_ratio_x = (double)scaled_width / src_width;
-  scale_ratio_y = (double)scaled_height / src_height;
-}
diff --git a/common/rfb/ScaledPixelBuffer.h b/common/rfb/ScaledPixelBuffer.h
deleted file mode 100644
index 453ab78c..00000000
--- a/common/rfb/ScaledPixelBuffer.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/* 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.
-
-#ifndef __RFB_SCALEDPIXELBUFFER_H__
-#define __RFB_SCALEDPIXELBUFFER_H__
-
-#include <rdr/types.h>
-#include <rdr/Exception.h>
-#include <rfb/Rect.h>
-#include <rfb/PixelFormat.h>
-#include <rfb/ScaleFilters.h>
-
-using namespace rdr;
-
-namespace rfb {
-
-  struct UnsupportedPixelFormatException : public Exception {
-    UnsupportedPixelFormatException(const char* s="Now supported only true colour pixel data in the scaling mode.")
-      : Exception(s) {}
-  };
-
-  class ScaledPixelBuffer {
-  public:
-    ScaledPixelBuffer(U8 **data, int width, int height, int scale, PixelFormat pf);
-    ScaledPixelBuffer();
-    virtual ~ScaledPixelBuffer();
-
-    // Get width, height, number of pixels and scale
-    int width()  const { return scaled_width; }
-    int height() const { return scaled_height; }
-    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; }
-    double getScaleRatioX() const { return scale_ratio_x; }
-    double getScaleRatioY() const { return scale_ratio_y; }
-
-    // Pixel manipulation routines
-    inline U32 getSourcePixel(int x, int y);
-
-    // 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);
-
-    void setScaledBuffer(U8 **scaled_data_) {
-      scaled_data = scaled_data_;
-    };
-
-    // Set the new pixel format
-    void setPF(const PixelFormat &pf);
-
-    // Set the new scale, in percent
-    virtual void setScale(int scale);
-
-    // Set/get the scale method
-    virtual void setScaleFilter(unsigned int scaleFilterID);
-    unsigned int getScaleFilterID() const { return scaleFilterID; }
-
-    // Scale rect from the source image buffer to the destination buffer
-    // using the current interpolation method
-    virtual void scaleRect(const Rect& r);
-
-    // Calculate the scaled image rectangle which depend on the source 
-    // image rectangle.
-    Rect calculateScaleBoundary(const Rect& r);
-
-  protected:
-
-    // Calculate the scaled buffer size depending on the source buffer
-    // parameters (width, height, pixel format)
-    virtual void calculateScaledBufferSize();
-
-    // Free the weight tabs for x and y 
-    virtual void freeWeightTabs();
-
-    // Recreates the row accumulators.
-    virtual void recreateRowAccum();
-
-
-    int src_width;
-    int src_height;
-    int scaled_width;
-    int scaled_height;
-    int scale;
-    double scale_ratio_x;
-    double scale_ratio_y;
-    PixelFormat pf;
-    unsigned int scaleFilterID;
-    ScaleFilters scaleFilters;
-    SFilterWeightTab *xWeightTabs;
-    SFilterWeightTab *yWeightTabs;
-    int *raccum;
-    int *gaccum;
-    int *baccum;
-    U8 **src_data;
-    U8 **scaled_data;
-  };
-
-};
-
-#endif