--- /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*/
+
+//
+// Image.cpp: implementation of the CvvImage class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "_highgui.h"
+
+#if defined __cplusplus
+
+//////////////////////////////////////////////////////////////////////
+// Construction/Destruction
+//////////////////////////////////////////////////////////////////////
+
+CvvImage::CvvImage()
+{
+ m_img = 0;
+}
+
+void CvvImage::Destroy()
+{
+ cvReleaseImage( &m_img );
+}
+
+CvvImage::~CvvImage()
+{
+ Destroy();
+}
+
+bool CvvImage::Create( int w, int h, int bpp, int origin )
+{
+ const unsigned max_img_size = 10000;
+
+ if( (bpp != 8 && bpp != 24 && bpp != 32) ||
+ (unsigned)w >= max_img_size || (unsigned)h >= max_img_size ||
+ (origin != IPL_ORIGIN_TL && origin != IPL_ORIGIN_BL))
+ {
+ assert(0); // most probably, it is a programming error
+ return false;
+ }
+
+ if( !m_img || Bpp() != bpp || m_img->width != w || m_img->height != h )
+ {
+ if( m_img && m_img->nSize == sizeof(IplImage))
+ Destroy();
+
+ /* prepare IPL header */
+ m_img = cvCreateImage( cvSize( w, h ), IPL_DEPTH_8U, bpp/8 );
+ }
+
+ if( m_img )
+ m_img->origin = origin == 0 ? IPL_ORIGIN_TL : IPL_ORIGIN_BL;
+
+ return m_img != 0;
+}
+
+void CvvImage::CopyOf( CvvImage& image, int desired_color )
+{
+ IplImage* img = image.GetImage();
+ if( img )
+ {
+ CopyOf( img, desired_color );
+ }
+}
+
+
+#define HG_IS_IMAGE(img) \
+ ((img) != 0 && ((const IplImage*)(img))->nSize == sizeof(IplImage) && \
+ ((IplImage*)img)->imageData != 0)
+
+
+void CvvImage::CopyOf( IplImage* img, int desired_color )
+{
+ if( HG_IS_IMAGE(img) )
+ {
+ int color = desired_color;
+ CvSize size = cvGetSize( img );
+
+ if( color < 0 )
+ color = img->nChannels > 1;
+
+ if( Create( size.width, size.height,
+ (!color ? 1 : img->nChannels > 1 ? img->nChannels : 3)*8,
+ img->origin ))
+ {
+ cvConvertImage( img, m_img, 0 );
+ }
+ }
+}
+
+
+bool CvvImage::Load( const char* filename, int desired_color )
+{
+ IplImage* img = cvLoadImage( filename, desired_color );
+ if( !img )
+ return false;
+
+ CopyOf( img, desired_color );
+ cvReleaseImage( &img );
+
+ return true;
+}
+
+
+bool CvvImage::LoadRect( const char* filename,
+ int desired_color, CvRect r )
+{
+ if( r.width < 0 || r.height < 0 ) return false;
+
+ IplImage* img = cvLoadImage( filename, desired_color );
+ if( !img )
+ return false;
+
+ if( r.width == 0 || r.height == 0 )
+ {
+ r.width = img->width;
+ r.height = img->height;
+ r.x = r.y = 0;
+ }
+
+ if( r.x > img->width || r.y > img->height ||
+ r.x + r.width < 0 || r.y + r.height < 0 )
+ {
+ cvReleaseImage( &img );
+ return false;
+ }
+
+ /* truncate r to source image */
+ if( r.x < 0 )
+ {
+ r.width += r.x;
+ r.x = 0;
+ }
+ if( r.y < 0 )
+ {
+ r.height += r.y;
+ r.y = 0;
+ }
+
+ if( r.x + r.width > img->width )
+ r.width = img->width - r.x;
+
+ if( r.y + r.height > img->height )
+ r.height = img->height - r.y;
+
+ cvSetImageROI( img, r );
+ CopyOf( img, desired_color );
+
+ cvReleaseImage( &img );
+ return true;
+}
+
+
+bool CvvImage::Save( const char* filename )
+{
+ if( !m_img )
+ return false;
+ cvSaveImage( filename, m_img );
+ return true;
+}
+
+
+void CvvImage::Show( const char* window )
+{
+ if( m_img )
+ cvShowImage( window, m_img );
+}
+
+
+#ifdef WIN32
+
+void CvvImage::Show( HDC dc, int x, int y, int w, int h, int from_x, int from_y )
+{
+ if( m_img && m_img->depth == IPL_DEPTH_8U )
+ {
+ uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
+ BITMAPINFO* bmi = (BITMAPINFO*)buffer;
+ int bmp_w = m_img->width, bmp_h = m_img->height;
+
+ FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
+
+ from_x = MIN( MAX( from_x, 0 ), bmp_w - 1 );
+ from_y = MIN( MAX( from_y, 0 ), bmp_h - 1 );
+
+ int sw = MAX( MIN( bmp_w - from_x, w ), 0 );
+ int sh = MAX( MIN( bmp_h - from_y, h ), 0 );
+
+ SetDIBitsToDevice(
+ dc, x, y, sw, sh, from_x, from_y, from_y, sh,
+ m_img->imageData + from_y*m_img->widthStep,
+ bmi, DIB_RGB_COLORS );
+ }
+}
+
+
+void CImage::DrawToHDC( HDC hDCDst, RECT* pDstRect )
+{
+ if( pDstRect && m_img && m_img->depth == IPL_DEPTH_8U && m_img->imageData )
+ {
+ uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
+ BITMAPINFO* bmi = (BITMAPINFO*)buffer;
+ int bmp_w = m_img->width, bmp_h = m_img->height;
+
+ CvRect roi = cvGetImageROI( m_img );
+ CvRect dst = RectToCvRect( *pDstRect );
+
+ if( roi.width == dst.width && roi.height == dst.height )
+ {
+ Show( hDCDst, dst.x, dst.y, dst.width, dst.height, roi.x, roi.y );
+ return;
+ }
+
+ if( roi.width > dst.width )
+ {
+ SetStretchBltMode(
+ hDCDst, // handle to device context
+ HALFTONE );
+ }
+ else
+ {
+ SetStretchBltMode(
+ hDCDst, // handle to device context
+ COLORONCOLOR );
+ }
+
+ FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
+
+ ::StretchDIBits(
+ hDCDst,
+ dst.x, dst.y, dst.width, dst.height,
+ roi.x, roi.y, roi.width, roi.height,
+ m_img->imageData, bmi, DIB_RGB_COLORS, SRCCOPY );
+ }
+}
+
+#endif
+
+void CvvImage::Fill( int color )
+{
+ cvSet( m_img, cvScalar(color&255,(color>>8)&255,(color>>16)&255,(color>>24)&255) );
+}
+
+#endif
+
+/* End of file. */
projects / opencv / blobdiff