From 88708cffa15662dcd2755fce699112d24a10a087 Mon Sep 17 00:00:00 2001 From: George Hazan Date: Wed, 30 May 2012 17:27:49 +0000 Subject: update for zlib & FreeImage git-svn-id: http://svn.miranda-ng.org/main/trunk@238 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/FreeImage/Source/FreeImageToolkit/Resize.h | 290 ++++++++++----------- 1 file changed, 145 insertions(+), 145 deletions(-) (limited to 'plugins/FreeImage/Source/FreeImageToolkit/Resize.h') diff --git a/plugins/FreeImage/Source/FreeImageToolkit/Resize.h b/plugins/FreeImage/Source/FreeImageToolkit/Resize.h index 8ecaca4caa..0d5d0b451a 100644 --- a/plugins/FreeImage/Source/FreeImageToolkit/Resize.h +++ b/plugins/FreeImage/Source/FreeImageToolkit/Resize.h @@ -1,145 +1,145 @@ -// ========================================================== -// 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.
- This class stores contribution information for an entire line (row or column). -*/ -class CWeightsTable -{ -/** - Sampled filter weight table.
- Contribution information for a single pixel -*/ -typedef struct { - /// Normalized weights of neighboring pixels - double *Weights; - /// Bounds of source pixels window - int Left, Right; -} Contribution; - -private: - /// Row (or column) of contribution weights - Contribution *m_WeightTable; - /// Filter window size (of affecting source pixels) - DWORD m_WindowSize; - /// Length of line (no. of rows / cols) - DWORD m_LineLength; - -public: - /** - Constructor
- Allocate and compute the weights table - @param pFilter Filter used for upsampling or downsampling - @param uLineSize Length (in pixels) of the destination line buffer - @param uSrcSize Length (in pixels) of the source line buffer - */ - CWeightsTable(CGenericFilter *pFilter, DWORD uDstSize, DWORD uSrcSize); - - /** - Destructor
- 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(int dst_pos, int 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 - */ - int getLeftBoundary(int 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 - */ - int getRightBoundary(int dst_pos) { - return m_WeightTable[dst_pos].Right; - } -}; - -// --------------------------------------------- - -/** - CResizeEngine
- This class performs filtered zoom. It scales an image to the desired dimensions with - any of the CGenericFilter derived filter class.
- It works with 8-, 24- and 32-bit buffers.

- - References :
- [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_ +// ========================================================== +// 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.
+ This class stores contribution information for an entire line (row or column). +*/ +class CWeightsTable +{ +/** + Sampled filter weight table.
+ 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
+ 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
+ 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
+ This class performs filtered zoom. It scales an image to the desired dimensions with + any of the CGenericFilter derived filter class.
+ It works with 8-, 24- and 32-bit buffers.

+ + References :
+ [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_ -- cgit v1.2.3