+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-#include <assert.h>
-#include "utils.h"
-
-#define SCALE 8
-#define cR (int)(0.299*(1 << SCALE) + 0.5)
-#define cG (int)(0.587*(1 << SCALE) + 0.5)
-#define cB (int)(0.114*(1 << SCALE) + 0.5)
-
-void CvtBGRToGray( const uchar* bgr, uchar* gray, int len )
-{
- int i;
- for( i = 0; i < len; i++, bgr += 3 )
- {
- int t = descale( bgr[0]*cB + bgr[1]*cG + bgr[2]*cR, SCALE );
- gray[i] = saturate( t );
- }
-}
-
-
-void CvtRGBToGray( const uchar* rgb, uchar* gray, int len )
-{
- int i;
- for( i = 0; i < len; i++, rgb += 3 )
- {
- int t = descale( rgb[2]*cB + rgb[1]*cG + rgb[0]*cR, SCALE );
- gray[i] = saturate( t );
- }
-}
-
-
-void CvtRGBToBGR( const uchar* rgb, uchar* bgr, int len )
-{
- int i;
-
- len *= 3;
- for( i = 0; i < len; i++, rgb += 3, bgr += 3 )
- {
- uchar b, g, r;
- r = rgb[0];
- g = rgb[1];
- b = rgb[2];
- bgr[0] = b;
- bgr[1] = g;
- bgr[2] = r;
- }
-}
-
-
-void CvtPaletteToGray( const PaletteEntry* palette, uchar* grayPalette, int entries )
-{
- int i;
- for( i = 0; i < entries; i++ )
- {
- CvtBGRToGray( (uchar*)(palette + i), grayPalette + i, 1 );
- }
-}
-
-
-void FillGrayPalette( PaletteEntry* palette, int bpp )
-{
- int i, length = 1 << bpp, shift = 8 - bpp;
-
- assert( shift >= 0 );
-
- for( i = 0; i < length; i++ )
- {
- palette[i].b = palette[i].g = palette[i].r = (uchar)(i << shift);
- palette[i].a = 0;
- }
-}
-
-void CalcShifts( uchar* data, uchar* line_end, int width3,
- int y, int height, int& x_shift3, int& y_shift )
-{
- int x3 = data - (line_end - width3);
- int new_x3 = x3 + x_shift3;
-
- y_shift = new_x3 / width3;
- new_x3 -= y_shift * width3;
-
- x_shift3 = new_x3 - x3;
-
- if( y + y_shift >= height )
- {
- if( y + y_shift > height )
- y_shift = height - y;
- if( width3 - (line_end - data) + x_shift3 > 0 )
- x_shift3 = (line_end - data) - width3;
- }
-}
-
-
-uchar* FillUni( uchar* data, uchar* line_end, int width3, int delta,
- int x_shift3, int y_shift, PaletteEntry clr, int color )
-{
- int new_x3 = (data - (line_end - width3)) + x_shift3;
- uchar gr_val = 0;
-
- if( y_shift < 0 ) // calculate y_shift
- {
- y_shift = new_x3 / width3;
- new_x3 -= y_shift * width3;
- }
-
- if( !color )
- {
- CvtBGRToGray( (uchar*)&clr, &gr_val, 1 );
- }
-
- for(;;)
- {
- if( color )
- {
- for( uchar* end = y_shift == 0 ? (line_end - width3) + new_x3 : line_end;
- data < end; data += 3 )
- {
- WRITE_PIX( data, clr );
- }
- }
- else
- {
- for( uchar* end = y_shift == 0 ? (line_end - width3) + new_x3 : line_end;
- data < end; data++ )
- {
- *data = gr_val;
- }
- }
- if( y_shift == 0 ) break;
- data = line_end + delta;
- line_end = data + width3;
- }
- return data;
-}
-
-
-uchar* FillRow32( uchar* data, uchar* src, int len )
-{
- for( uchar* end = data + len*3; (data += 3) < end; src += 4 )
- {
- *((PaletteEntry*)(data-3)) = *((PaletteEntry*)src);
- }
- PaletteEntry clr = *((PaletteEntry*)src);
- WRITE_PIX( data - 3, clr );
- return data;
-}
-
-
-uchar* FillColorRow8( uchar* data, uchar* indices, int len, PaletteEntry* palette )
-{
- uchar* end = data + len*3;
- while( (data += 3) < end )
- {
- *((PaletteEntry*)(data-3)) = palette[*indices++];
- }
- PaletteEntry clr = palette[indices[0]];
- WRITE_PIX( data - 3, clr );
- return data;
-}
-
-
-uchar* FillGrayRow8( uchar* data, uchar* indices, int len, uchar* palette )
-{
- int i;
- for( i = 0; i < len; i++ )
- {
- data[i] = palette[indices[i]];
- }
- return data + len;
-}
-
-
-uchar* FillColorRow4( uchar* data, uchar* indices, int len, PaletteEntry* palette )
-{
- uchar* end = data + len*3;
-
- while( (data += 6) < end )
- {
- int idx = *indices++;
- *((PaletteEntry*)(data-6)) = palette[idx >> 4];
- *((PaletteEntry*)(data-3)) = palette[idx & 15];
- }
-
- int idx = indices[0];
- PaletteEntry clr = palette[idx >> 4];
- WRITE_PIX( data - 6, clr );
-
- if( data == end )
- {
- clr = palette[idx & 15];
- WRITE_PIX( data - 3, clr );
- }
- return end;
-}
-
-
-uchar* FillGrayRow4( uchar* data, uchar* indices, int len, uchar* palette )
-{
- uchar* end = data + len;
- while( (data += 2) < end )
- {
- int idx = *indices++;
- data[-2] = palette[idx >> 4];
- data[-1] = palette[idx & 15];
- }
-
- int idx = indices[0];
- uchar clr = palette[idx >> 4];
- data[-2] = clr;
-
- if( data == end )
- {
- clr = palette[idx & 15];
- data[-1] = clr;
- }
- return end;
-}
-
-
-uchar* FillColorRow1( uchar* data, uchar* indices, int len, PaletteEntry* palette )
-{
- uchar* end = data + len*3;
-
- while( (data += 24) < end )
- {
- int idx = *indices++;
- *((PaletteEntry*)(data - 24)) = palette[(idx & 128) != 0];
- *((PaletteEntry*)(data - 21)) = palette[(idx & 64) != 0];
- *((PaletteEntry*)(data - 18)) = palette[(idx & 32) != 0];
- *((PaletteEntry*)(data - 15)) = palette[(idx & 16) != 0];
- *((PaletteEntry*)(data - 12)) = palette[(idx & 8) != 0];
- *((PaletteEntry*)(data - 9)) = palette[(idx & 4) != 0];
- *((PaletteEntry*)(data - 6)) = palette[(idx & 2) != 0];
- *((PaletteEntry*)(data - 3)) = palette[(idx & 1) != 0];
- }
-
- int idx = indices[0] << 24;
- for( data -= 24; data < end; data += 3, idx += idx )
- {
- PaletteEntry clr = palette[idx < 0];
- WRITE_PIX( data, clr );
- }
-
- return data;
-}
-
-
-uchar* FillGrayRow1( uchar* data, uchar* indices, int len, uchar* palette )
-{
- uchar* end = data + len;
-
- while( (data += 8) < end )
- {
- int idx = *indices++;
- *((uchar*)(data - 8)) = palette[(idx & 128) != 0];
- *((uchar*)(data - 7)) = palette[(idx & 64) != 0];
- *((uchar*)(data - 6)) = palette[(idx & 32) != 0];
- *((uchar*)(data - 5)) = palette[(idx & 16) != 0];
- *((uchar*)(data - 4)) = palette[(idx & 8) != 0];
- *((uchar*)(data - 3)) = palette[(idx & 4) != 0];
- *((uchar*)(data - 2)) = palette[(idx & 2) != 0];
- *((uchar*)(data - 1)) = palette[(idx & 1) != 0];
- }
-
- int idx = indices[0] << 24;
- for( data -= 8; data < end; data++, idx += idx )
- {
- data[0] = palette[idx < 0];
- }
-
- return data;
-}
-
projects / opencv / blobdiff