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authorKirill Volinsky <mataes2007@gmail.com>2012-12-22 16:38:58 +0000
committerKirill Volinsky <mataes2007@gmail.com>2012-12-22 16:38:58 +0000
commit87d155ba9f4e699293adc65954c89f20fc65b36d (patch)
treed79d69145cc6ef4e97d2ad2912b4d645c7b27158 /plugins/FreeImage/src/FreeImageToolkit/Resize.h
parenta8bd33017b1959588d60c9a8a5ae3a744cb75e4d (diff)
AdvaImg plugin folder renaming
git-svn-id: http://svn.miranda-ng.org/main/trunk@2801 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
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diff --git a/plugins/FreeImage/src/FreeImageToolkit/Resize.h b/plugins/FreeImage/src/FreeImageToolkit/Resize.h
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-// ==========================================================
-// Upsampling / downsampling classes
-//
-// Design and implementation by
-// - Hervé Drolon (drolon@infonie.fr)
-// - Detlev Vendt (detlev.vendt@brillit.de)
-//
-// This file is part of FreeImage 3
-//
-// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
-// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
-// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
-// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
-// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
-// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
-// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
-// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
-// THIS DISCLAIMER.
-//
-// Use at your own risk!
-// ==========================================================
-
-#ifndef _RESIZE_H_
-#define _RESIZE_H_
-
-#include "FreeImage.h"
-#include "Utilities.h"
-#include "Filters.h"
-
-/**
- Filter weights table.<br>
- This class stores contribution information for an entire line (row or column).
-*/
-class CWeightsTable
-{
-/**
- Sampled filter weight table.<br>
- Contribution information for a single pixel
-*/
-typedef struct {
- /// Normalized weights of neighboring pixels
- double *Weights;
- /// Bounds of source pixels window
- unsigned Left, Right;
-} Contribution;
-
-private:
- /// Row (or column) of contribution weights
- Contribution *m_WeightTable;
- /// Filter window size (of affecting source pixels)
- unsigned m_WindowSize;
- /// Length of line (no. of rows / cols)
- unsigned m_LineLength;
-
-public:
- /**
- Constructor<br>
- Allocate and compute the weights table
- @param pFilter Filter used for upsampling or downsampling
- @param uDstSize Length (in pixels) of the destination line buffer
- @param uSrcSize Length (in pixels) of the source line buffer
- */
- CWeightsTable(CGenericFilter *pFilter, unsigned uDstSize, unsigned uSrcSize);
-
- /**
- Destructor<br>
- Destroy the weights table
- */
- ~CWeightsTable();
-
- /** Retrieve a filter weight, given source and destination positions
- @param dst_pos Pixel position in destination line buffer
- @param src_pos Pixel position in source line buffer
- @return Returns the filter weight
- */
- double getWeight(unsigned dst_pos, unsigned src_pos) {
- return m_WeightTable[dst_pos].Weights[src_pos];
- }
-
- /** Retrieve left boundary of source line buffer
- @param dst_pos Pixel position in destination line buffer
- @return Returns the left boundary of source line buffer
- */
- unsigned getLeftBoundary(unsigned dst_pos) {
- return m_WeightTable[dst_pos].Left;
- }
-
- /** Retrieve right boundary of source line buffer
- @param dst_pos Pixel position in destination line buffer
- @return Returns the right boundary of source line buffer
- */
- unsigned getRightBoundary(unsigned dst_pos) {
- return m_WeightTable[dst_pos].Right;
- }
-};
-
-// ---------------------------------------------
-
-/**
- CResizeEngine<br>
- This class performs filtered zoom. It scales an image to the desired dimensions with
- any of the CGenericFilter derived filter class.<br>
- It works with 8-, 24- and 32-bit buffers.<br><br>
-
- <b>References</b> : <br>
- [1] Paul Heckbert, C code to zoom raster images up or down, with nice filtering.
- UC Berkeley, August 1989. [online] http://www-2.cs.cmu.edu/afs/cs.cmu.edu/Web/People/ph/heckbert.html
- [2] Eran Yariv, Two Pass Scaling using Filters. The Code Project, December 1999.
- [online] http://www.codeproject.com/bitmap/2_pass_scaling.asp
-
-*/
-class CResizeEngine
-{
-private:
- /// Pointer to the FIR / IIR filter
- CGenericFilter* m_pFilter;
-
-public:
-
- /// Constructor
- CResizeEngine(CGenericFilter* filter):m_pFilter(filter) {}
-
- /// Destructor
- virtual ~CResizeEngine() {}
-
- /** Scale an image to the desired dimensions
- @param src Pointer to the source image
- @param dst_width Destination image width
- @param dst_height Destination image height
- @return Returns the scaled image if successful, returns NULL otherwise
- */
- FIBITMAP* scale(FIBITMAP *src, unsigned dst_width, unsigned dst_height);
-
-private:
-
- /// Performs horizontal image filtering
- void horizontalFilter(FIBITMAP *src, unsigned src_width, unsigned src_height, FIBITMAP *dst, unsigned dst_width, unsigned dst_height);
-
- /// Performs vertical image filtering
- void verticalFilter(FIBITMAP *src, unsigned src_width, unsigned src_height, FIBITMAP *dst, unsigned dst_width, unsigned dst_height);
-};
-
-
-
-#endif // _RESIZE_H_