/*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 "_cxcore.h" #define XY_SHIFT 16 #define XY_ONE (1 << XY_SHIFT) #define CV_DRAWING_STORAGE_BLOCK ((1 << 12) - 256) typedef struct CvPolyEdge { int x, dx; union { struct CvPolyEdge *next; int y0; }; int y1; } CvPolyEdge; static void icvCollectPolyEdges( CvMat* img, CvSeq* v, CvContour* edges, const void* color, int line_type, int shift, CvPoint offset=cvPoint(0,0) ); static void icvFillEdgeCollection( CvMat* img, CvContour* edges, const void* color ); static void icvPolyLine( CvMat* img, CvPoint *v, int count, int closed, const void* color, int thickness, int line_type, int shift ); static void icvFillConvexPoly( CvMat* img, CvPoint* v, int npts, const void* color, int line_type, int shift ); /****************************************************************************************\ * Lines * \****************************************************************************************/ CV_IMPL int cvClipLine( CvSize img_size, CvPoint* pt1, CvPoint* pt2 ) { int result = 0; CV_FUNCNAME( "cvClipLine" ); __BEGIN__; int x1, y1, x2, y2; int c1, c2; int right = img_size.width-1, bottom = img_size.height-1; if( !pt1 || !pt2 ) CV_ERROR( CV_StsNullPtr, "One of point pointers is NULL" ); if( right < 0 || bottom < 0 ) CV_ERROR( CV_StsOutOfRange, "Image width or height are negative" ); x1 = pt1->x; y1 = pt1->y; x2 = pt2->x; y2 = pt2->y; c1 = (x1 < 0) + (x1 > right) * 2 + (y1 < 0) * 4 + (y1 > bottom) * 8; c2 = (x2 < 0) + (x2 > right) * 2 + (y2 < 0) * 4 + (y2 > bottom) * 8; if( (c1 & c2) == 0 && (c1 | c2) != 0 ) { int a; if( c1 & 12 ) { a = c1 < 8 ? 0 : bottom; x1 += (int) (((int64) (a - y1)) * (x2 - x1) / (y2 - y1)); y1 = a; c1 = (x1 < 0) + (x1 > right) * 2; } if( c2 & 12 ) { a = c2 < 8 ? 0 : bottom; x2 += (int) (((int64) (a - y2)) * (x2 - x1) / (y2 - y1)); y2 = a; c2 = (x2 < 0) + (x2 > right) * 2; } if( (c1 & c2) == 0 && (c1 | c2) != 0 ) { if( c1 ) { a = c1 == 1 ? 0 : right; y1 += (int) (((int64) (a - x1)) * (y2 - y1) / (x2 - x1)); x1 = a; c1 = 0; } if( c2 ) { a = c2 == 1 ? 0 : right; y2 += (int) (((int64) (a - x2)) * (y2 - y1) / (x2 - x1)); x2 = a; c2 = 0; } } assert( (c1 & c2) != 0 || (x1 | y1 | x2 | y2) >= 0 ); pt1->x = x1; pt1->y = y1; pt2->x = x2; pt2->y = y2; } result = ( c1 | c2 ) == 0; __END__; return result; } /* Initializes line iterator. Returns number of points on the line or negative number if error. */ CV_IMPL int cvInitLineIterator( const CvArr* img, CvPoint pt1, CvPoint pt2, CvLineIterator* iterator, int connectivity, int left_to_right ) { int count = -1; CV_FUNCNAME( "cvInitLineIterator" ); __BEGIN__; CvMat stub, *mat = (CvMat*)img; int dx, dy, s; int bt_pix, bt_pix0, step; if( !CV_IS_MAT(mat) ) CV_CALL( mat = cvGetMat( mat, &stub )); if( !iterator ) CV_ERROR( CV_StsNullPtr, "Pointer to the iterator state is NULL" ); if( connectivity != 8 && connectivity != 4 ) CV_ERROR( CV_StsBadArg, "Connectivity must be 8 or 4" ); if( (unsigned)pt1.x >= (unsigned)(mat->width) || (unsigned)pt2.x >= (unsigned)(mat->width) || (unsigned)pt1.y >= (unsigned)(mat->height) || (unsigned)pt2.y >= (unsigned)(mat->height) ) CV_ERROR( CV_StsBadPoint, "One of the ending points is outside of the image, use cvClipLine" ); bt_pix0 = bt_pix = CV_ELEM_SIZE(mat->type); step = mat->step; dx = pt2.x - pt1.x; dy = pt2.y - pt1.y; s = dx < 0 ? -1 : 0; if( left_to_right ) { dx = (dx ^ s) - s; dy = (dy ^ s) - s; pt1.x ^= (pt1.x ^ pt2.x) & s; pt1.y ^= (pt1.y ^ pt2.y) & s; } else { dx = (dx ^ s) - s; bt_pix = (bt_pix ^ s) - s; } iterator->ptr = (uchar*)(mat->data.ptr + pt1.y * step + pt1.x * bt_pix0); s = dy < 0 ? -1 : 0; dy = (dy ^ s) - s; step = (step ^ s) - s; s = dy > dx ? -1 : 0; /* conditional swaps */ dx ^= dy & s; dy ^= dx & s; dx ^= dy & s; bt_pix ^= step & s; step ^= bt_pix & s; bt_pix ^= step & s; if( connectivity == 8 ) { assert( dx >= 0 && dy >= 0 ); iterator->err = dx - (dy + dy); iterator->plus_delta = dx + dx; iterator->minus_delta = -(dy + dy); iterator->plus_step = step; iterator->minus_step = bt_pix; count = dx + 1; } else /* connectivity == 4 */ { assert( dx >= 0 && dy >= 0 ); iterator->err = 0; iterator->plus_delta = (dx + dx) + (dy + dy); iterator->minus_delta = -(dy + dy); iterator->plus_step = step - bt_pix; iterator->minus_step = bt_pix; count = dx + dy + 1; } __END__; return count; } static void icvLine( CvMat* mat, CvPoint pt1, CvPoint pt2, const void* color, int connectivity = 8 ) { if( cvClipLine( cvGetMatSize(mat), &pt1, &pt2 )) { CvLineIterator iterator; int pix_size = CV_ELEM_SIZE(mat->type); int i, count; if( connectivity == 0 ) connectivity = 8; if( connectivity == 1 ) connectivity = 4; count = cvInitLineIterator( mat, pt1, pt2, &iterator, connectivity, 1 ); for( i = 0; i < count; i++ ) { CV_MEMCPY_AUTO( iterator.ptr, color, pix_size ); CV_NEXT_LINE_POINT( iterator ); } } } /* Correction table depent on the slope */ static const uchar icvSlopeCorrTable[] = { 181, 181, 181, 182, 182, 183, 184, 185, 187, 188, 190, 192, 194, 196, 198, 201, 203, 206, 209, 211, 214, 218, 221, 224, 227, 231, 235, 238, 242, 246, 250, 254 }; /* Gaussian for antialiasing filter */ static const int icvFilterTable[] = { 168, 177, 185, 194, 202, 210, 218, 224, 231, 236, 241, 246, 249, 252, 254, 254, 254, 254, 252, 249, 246, 241, 236, 231, 224, 218, 210, 202, 194, 185, 177, 168, 158, 149, 140, 131, 122, 114, 105, 97, 89, 82, 75, 68, 62, 56, 50, 45, 40, 36, 32, 28, 25, 22, 19, 16, 14, 12, 11, 9, 8, 7, 5, 5 }; static void icvLineAA( CvMat* img, CvPoint pt1, CvPoint pt2, const void* color ) { int dx, dy; int ecount, scount = 0; int slope; int ax, ay; int x_step, y_step; int i, j; int ep_table[9]; int cb = ((uchar*)color)[0], cg = ((uchar*)color)[1], cr = ((uchar*)color)[2]; int _cb, _cg, _cr; int nch = CV_MAT_CN( img->type ); uchar* ptr = (uchar*)(img->data.ptr); int step = img->step; CvSize size = cvGetMatSize( img ); assert( img && (nch == 1 || nch == 3) && CV_MAT_DEPTH(img->type) == CV_8U ); pt1.x -= XY_ONE*2; pt1.y -= XY_ONE*2; pt2.x -= XY_ONE*2; pt2.y -= XY_ONE*2; ptr += img->step*2 + 2*nch; size.width = ((size.width - 5) << XY_SHIFT) + 1; size.height = ((size.height - 5) << XY_SHIFT) + 1; if( !cvClipLine( size, &pt1, &pt2 )) return; dx = pt2.x - pt1.x; dy = pt2.y - pt1.y; j = dx < 0 ? -1 : 0; ax = (dx ^ j) - j; i = dy < 0 ? -1 : 0; ay = (dy ^ i) - i; if( ax > ay ) { dx = ax; dy = (dy ^ j) - j; pt1.x ^= pt2.x & j; pt2.x ^= pt1.x & j; pt1.x ^= pt2.x & j; pt1.y ^= pt2.y & j; pt2.y ^= pt1.y & j; pt1.y ^= pt2.y & j; x_step = XY_ONE; y_step = (int) (((int64) dy << XY_SHIFT) / (ax | 1)); pt2.x += XY_ONE; ecount = (pt2.x >> XY_SHIFT) - (pt1.x >> XY_SHIFT); j = -(pt1.x & (XY_ONE - 1)); pt1.y += (int) ((((int64) y_step) * j) >> XY_SHIFT) + (XY_ONE >> 1); slope = (y_step >> (XY_SHIFT - 5)) & 0x3f; slope ^= (y_step < 0 ? 0x3f : 0); /* Get 4-bit fractions for end-point adjustments */ i = (pt1.x >> (XY_SHIFT - 7)) & 0x78; j = (pt2.x >> (XY_SHIFT - 7)) & 0x78; } else { dy = ay; dx = (dx ^ i) - i; pt1.x ^= pt2.x & i; pt2.x ^= pt1.x & i; pt1.x ^= pt2.x & i; pt1.y ^= pt2.y & i; pt2.y ^= pt1.y & i; pt1.y ^= pt2.y & i; x_step = (int) (((int64) dx << XY_SHIFT) / (ay | 1)); y_step = XY_ONE; pt2.y += XY_ONE; ecount = (pt2.y >> XY_SHIFT) - (pt1.y >> XY_SHIFT); j = -(pt1.y & (XY_ONE - 1)); pt1.x += (int) ((((int64) x_step) * j) >> XY_SHIFT) + (XY_ONE >> 1); slope = (x_step >> (XY_SHIFT - 5)) & 0x3f; slope ^= (x_step < 0 ? 0x3f : 0); /* Get 4-bit fractions for end-point adjustments */ i = (pt1.y >> (XY_SHIFT - 7)) & 0x78; j = (pt2.y >> (XY_SHIFT - 7)) & 0x78; } slope = (slope & 0x20) ? 0x100 : icvSlopeCorrTable[slope]; /* Calc end point correction table */ { int t0 = slope << 7; int t1 = ((0x78 - i) | 4) * slope; int t2 = (j | 4) * slope; ep_table[0] = 0; ep_table[8] = slope; ep_table[1] = ep_table[3] = ((((j - i) & 0x78) | 4) * slope >> 8) & 0x1ff; ep_table[2] = (t1 >> 8) & 0x1ff; ep_table[4] = ((((j - i) + 0x80) | 4) * slope >> 8) & 0x1ff; ep_table[5] = ((t1 + t0) >> 8) & 0x1ff; ep_table[6] = (t2 >> 8) & 0x1ff; ep_table[7] = ((t2 + t0) >> 8) & 0x1ff; } if( nch == 3 ) { #define ICV_PUT_POINT() \ { \ _cb = tptr[0]; \ _cb += ((cb - _cb)*a + 127)>> 8;\ _cg = tptr[1]; \ _cg += ((cg - _cg)*a + 127)>> 8;\ _cr = tptr[2]; \ _cr += ((cr - _cr)*a + 127)>> 8;\ tptr[0] = (uchar)_cb; \ tptr[1] = (uchar)_cg; \ tptr[2] = (uchar)_cr; \ } if( ax > ay ) { ptr += (pt1.x >> XY_SHIFT) * 3; while( ecount >= 0 ) { uchar *tptr = ptr + ((pt1.y >> XY_SHIFT) - 1) * step; int ep_corr = ep_table[(((scount >= 2) + 1) & (scount | 2)) * 3 + (((ecount >= 2) + 1) & (ecount | 2))]; int a, dist = (pt1.y >> (XY_SHIFT - 5)) & 31; a = (ep_corr * icvFilterTable[dist + 32] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += step; a = (ep_corr * icvFilterTable[dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += step; a = (ep_corr * icvFilterTable[63 - dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); pt1.y += y_step; ptr += 3; scount++; ecount--; } } else { ptr += (pt1.y >> XY_SHIFT) * step; while( ecount >= 0 ) { uchar *tptr = ptr + ((pt1.x >> XY_SHIFT) - 1) * 3; int ep_corr = ep_table[(((scount >= 2) + 1) & (scount | 2)) * 3 + (((ecount >= 2) + 1) & (ecount | 2))]; int a, dist = (pt1.x >> (XY_SHIFT - 5)) & 31; a = (ep_corr * icvFilterTable[dist + 32] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += 3; a = (ep_corr * icvFilterTable[dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += 3; a = (ep_corr * icvFilterTable[63 - dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); pt1.x += x_step; ptr += step; scount++; ecount--; } } #undef ICV_PUT_POINT } else { #define ICV_PUT_POINT() \ { \ _cb = tptr[0]; \ _cb += ((cb - _cb)*a + 127)>> 8;\ tptr[0] = (uchar)_cb; \ } if( ax > ay ) { ptr += (pt1.x >> XY_SHIFT); while( ecount >= 0 ) { uchar *tptr = ptr + ((pt1.y >> XY_SHIFT) - 1) * step; int ep_corr = ep_table[(((scount >= 2) + 1) & (scount | 2)) * 3 + (((ecount >= 2) + 1) & (ecount | 2))]; int a, dist = (pt1.y >> (XY_SHIFT - 5)) & 31; a = (ep_corr * icvFilterTable[dist + 32] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += step; a = (ep_corr * icvFilterTable[dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr += step; a = (ep_corr * icvFilterTable[63 - dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); pt1.y += y_step; ptr++; scount++; ecount--; } } else { ptr += (pt1.y >> XY_SHIFT) * step; while( ecount >= 0 ) { uchar *tptr = ptr + ((pt1.x >> XY_SHIFT) - 1); int ep_corr = ep_table[(((scount >= 2) + 1) & (scount | 2)) * 3 + (((ecount >= 2) + 1) & (ecount | 2))]; int a, dist = (pt1.x >> (XY_SHIFT - 5)) & 31; a = (ep_corr * icvFilterTable[dist + 32] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr++; a = (ep_corr * icvFilterTable[dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); tptr++; a = (ep_corr * icvFilterTable[63 - dist] >> 8) & 0xff; ICV_PUT_POINT(); ICV_PUT_POINT(); pt1.x += x_step; ptr += step; scount++; ecount--; } } #undef ICV_PUT_POINT } } static void icvLine2( CvMat* img, CvPoint pt1, CvPoint pt2, const void* color ) { int dx, dy; int ecount; int ax, ay; int i, j; int x_step, y_step; int cb = ((uchar*)color)[0]; int cg = ((uchar*)color)[1]; int cr = ((uchar*)color)[2]; int pix_size = CV_ELEM_SIZE( img->type ); uchar *ptr = (uchar*)(img->data.ptr), *tptr; int step = img->step; CvSize size = cvGetMatSize( img ); //assert( img && (nch == 1 || nch == 3) && CV_MAT_DEPTH(img->type) == CV_8U ); pt1.x -= XY_ONE*2; pt1.y -= XY_ONE*2; pt2.x -= XY_ONE*2; pt2.y -= XY_ONE*2; ptr += img->step*2 + 2*pix_size; size.width = ((size.width - 5) << XY_SHIFT) + 1; size.height = ((size.height - 5) << XY_SHIFT) + 1; if( !cvClipLine( size, &pt1, &pt2 )) return; dx = pt2.x - pt1.x; dy = pt2.y - pt1.y; j = dx < 0 ? -1 : 0; ax = (dx ^ j) - j; i = dy < 0 ? -1 : 0; ay = (dy ^ i) - i; if( ax > ay ) { dx = ax; dy = (dy ^ j) - j; pt1.x ^= pt2.x & j; pt2.x ^= pt1.x & j; pt1.x ^= pt2.x & j; pt1.y ^= pt2.y & j; pt2.y ^= pt1.y & j; pt1.y ^= pt2.y & j; x_step = XY_ONE; y_step = (int) (((int64) dy << XY_SHIFT) / (ax | 1)); ecount = (pt2.x - pt1.x) >> XY_SHIFT; } else { dy = ay; dx = (dx ^ i) - i; pt1.x ^= pt2.x & i; pt2.x ^= pt1.x & i; pt1.x ^= pt2.x & i; pt1.y ^= pt2.y & i; pt2.y ^= pt1.y & i; pt1.y ^= pt2.y & i; x_step = (int) (((int64) dx << XY_SHIFT) / (ay | 1)); y_step = XY_ONE; ecount = (pt2.y - pt1.y) >> XY_SHIFT; } pt1.x += (XY_ONE >> 1); pt1.y += (XY_ONE >> 1); if( pix_size == 3 ) { #define ICV_PUT_POINT() \ { \ tptr[0] = (uchar)cb; \ tptr[1] = (uchar)cg; \ tptr[2] = (uchar)cr; \ } tptr = ptr + ((pt2.x + (XY_ONE >> 1))>> XY_SHIFT)*3 + ((pt2.y + (XY_ONE >> 1)) >> XY_SHIFT)*step; ICV_PUT_POINT(); if( ax > ay ) { ptr += (pt1.x >> XY_SHIFT) * 3; while( ecount >= 0 ) { tptr = ptr + (pt1.y >> XY_SHIFT) * step; ICV_PUT_POINT(); pt1.y += y_step; ptr += 3; ecount--; } } else { ptr += (pt1.y >> XY_SHIFT) * step; while( ecount >= 0 ) { tptr = ptr + (pt1.x >> XY_SHIFT) * 3; ICV_PUT_POINT(); pt1.x += x_step; ptr += step; ecount--; } } #undef ICV_PUT_POINT } else if( pix_size == 1 ) { #define ICV_PUT_POINT() \ { \ tptr[0] = (uchar)cb; \ } tptr = ptr + ((pt2.x + (XY_ONE >> 1))>> XY_SHIFT) + ((pt2.y + (XY_ONE >> 1)) >> XY_SHIFT)*step; ICV_PUT_POINT(); if( ax > ay ) { ptr += (pt1.x >> XY_SHIFT); while( ecount >= 0 ) { tptr = ptr + (pt1.y >> XY_SHIFT) * step; ICV_PUT_POINT(); pt1.y += y_step; ptr++; ecount--; } } else { ptr += (pt1.y >> XY_SHIFT) * step; while( ecount >= 0 ) { tptr = ptr + (pt1.x >> XY_SHIFT); ICV_PUT_POINT(); pt1.x += x_step; ptr += step; ecount--; } } #undef ICV_PUT_POINT } else { #define ICV_PUT_POINT() \ for( j = 0; j < pix_size; j++ ) \ tptr[j] = ((uchar*)color)[j]; tptr = ptr + ((pt2.x + (XY_ONE >> 1))>> XY_SHIFT)*pix_size + ((pt2.y + (XY_ONE >> 1)) >> XY_SHIFT)*step; ICV_PUT_POINT(); if( ax > ay ) { ptr += (pt1.x >> XY_SHIFT) * pix_size; while( ecount >= 0 ) { tptr = ptr + (pt1.y >> XY_SHIFT) * step; ICV_PUT_POINT(); pt1.y += y_step; ptr += pix_size; ecount--; } } else { ptr += (pt1.y >> XY_SHIFT) * step; while( ecount >= 0 ) { tptr = ptr + (pt1.x >> XY_SHIFT) * pix_size; ICV_PUT_POINT(); pt1.x += x_step; ptr += step; ecount--; } } #undef ICV_PUT_POINT } } /****************************************************************************************\ * Antialiazed Elliptic Arcs via Antialiazed Lines * \****************************************************************************************/ static const float icvSinTable[] = { 0.0000000f, 0.0174524f, 0.0348995f, 0.0523360f, 0.0697565f, 0.0871557f, 0.1045285f, 0.1218693f, 0.1391731f, 0.1564345f, 0.1736482f, 0.1908090f, 0.2079117f, 0.2249511f, 0.2419219f, 0.2588190f, 0.2756374f, 0.2923717f, 0.3090170f, 0.3255682f, 0.3420201f, 0.3583679f, 0.3746066f, 0.3907311f, 0.4067366f, 0.4226183f, 0.4383711f, 0.4539905f, 0.4694716f, 0.4848096f, 0.5000000f, 0.5150381f, 0.5299193f, 0.5446390f, 0.5591929f, 0.5735764f, 0.5877853f, 0.6018150f, 0.6156615f, 0.6293204f, 0.6427876f, 0.6560590f, 0.6691306f, 0.6819984f, 0.6946584f, 0.7071068f, 0.7193398f, 0.7313537f, 0.7431448f, 0.7547096f, 0.7660444f, 0.7771460f, 0.7880108f, 0.7986355f, 0.8090170f, 0.8191520f, 0.8290376f, 0.8386706f, 0.8480481f, 0.8571673f, 0.8660254f, 0.8746197f, 0.8829476f, 0.8910065f, 0.8987940f, 0.9063078f, 0.9135455f, 0.9205049f, 0.9271839f, 0.9335804f, 0.9396926f, 0.9455186f, 0.9510565f, 0.9563048f, 0.9612617f, 0.9659258f, 0.9702957f, 0.9743701f, 0.9781476f, 0.9816272f, 0.9848078f, 0.9876883f, 0.9902681f, 0.9925462f, 0.9945219f, 0.9961947f, 0.9975641f, 0.9986295f, 0.9993908f, 0.9998477f, 1.0000000f, 0.9998477f, 0.9993908f, 0.9986295f, 0.9975641f, 0.9961947f, 0.9945219f, 0.9925462f, 0.9902681f, 0.9876883f, 0.9848078f, 0.9816272f, 0.9781476f, 0.9743701f, 0.9702957f, 0.9659258f, 0.9612617f, 0.9563048f, 0.9510565f, 0.9455186f, 0.9396926f, 0.9335804f, 0.9271839f, 0.9205049f, 0.9135455f, 0.9063078f, 0.8987940f, 0.8910065f, 0.8829476f, 0.8746197f, 0.8660254f, 0.8571673f, 0.8480481f, 0.8386706f, 0.8290376f, 0.8191520f, 0.8090170f, 0.7986355f, 0.7880108f, 0.7771460f, 0.7660444f, 0.7547096f, 0.7431448f, 0.7313537f, 0.7193398f, 0.7071068f, 0.6946584f, 0.6819984f, 0.6691306f, 0.6560590f, 0.6427876f, 0.6293204f, 0.6156615f, 0.6018150f, 0.5877853f, 0.5735764f, 0.5591929f, 0.5446390f, 0.5299193f, 0.5150381f, 0.5000000f, 0.4848096f, 0.4694716f, 0.4539905f, 0.4383711f, 0.4226183f, 0.4067366f, 0.3907311f, 0.3746066f, 0.3583679f, 0.3420201f, 0.3255682f, 0.3090170f, 0.2923717f, 0.2756374f, 0.2588190f, 0.2419219f, 0.2249511f, 0.2079117f, 0.1908090f, 0.1736482f, 0.1564345f, 0.1391731f, 0.1218693f, 0.1045285f, 0.0871557f, 0.0697565f, 0.0523360f, 0.0348995f, 0.0174524f, 0.0000000f, -0.0174524f, -0.0348995f, -0.0523360f, -0.0697565f, -0.0871557f, -0.1045285f, -0.1218693f, -0.1391731f, -0.1564345f, -0.1736482f, -0.1908090f, -0.2079117f, -0.2249511f, -0.2419219f, -0.2588190f, -0.2756374f, -0.2923717f, -0.3090170f, -0.3255682f, -0.3420201f, -0.3583679f, -0.3746066f, -0.3907311f, -0.4067366f, -0.4226183f, -0.4383711f, -0.4539905f, -0.4694716f, -0.4848096f, -0.5000000f, -0.5150381f, -0.5299193f, -0.5446390f, -0.5591929f, -0.5735764f, -0.5877853f, -0.6018150f, -0.6156615f, -0.6293204f, -0.6427876f, -0.6560590f, -0.6691306f, -0.6819984f, -0.6946584f, -0.7071068f, -0.7193398f, -0.7313537f, -0.7431448f, -0.7547096f, -0.7660444f, -0.7771460f, -0.7880108f, -0.7986355f, -0.8090170f, -0.8191520f, -0.8290376f, -0.8386706f, -0.8480481f, -0.8571673f, -0.8660254f, -0.8746197f, -0.8829476f, -0.8910065f, -0.8987940f, -0.9063078f, -0.9135455f, -0.9205049f, -0.9271839f, -0.9335804f, -0.9396926f, -0.9455186f, -0.9510565f, -0.9563048f, -0.9612617f, -0.9659258f, -0.9702957f, -0.9743701f, -0.9781476f, -0.9816272f, -0.9848078f, -0.9876883f, -0.9902681f, -0.9925462f, -0.9945219f, -0.9961947f, -0.9975641f, -0.9986295f, -0.9993908f, -0.9998477f, -1.0000000f, -0.9998477f, -0.9993908f, -0.9986295f, -0.9975641f, -0.9961947f, -0.9945219f, -0.9925462f, -0.9902681f, -0.9876883f, -0.9848078f, -0.9816272f, -0.9781476f, -0.9743701f, -0.9702957f, -0.9659258f, -0.9612617f, -0.9563048f, -0.9510565f, -0.9455186f, -0.9396926f, -0.9335804f, -0.9271839f, -0.9205049f, -0.9135455f, -0.9063078f, -0.8987940f, -0.8910065f, -0.8829476f, -0.8746197f, -0.8660254f, -0.8571673f, -0.8480481f, -0.8386706f, -0.8290376f, -0.8191520f, -0.8090170f, -0.7986355f, -0.7880108f, -0.7771460f, -0.7660444f, -0.7547096f, -0.7431448f, -0.7313537f, -0.7193398f, -0.7071068f, -0.6946584f, -0.6819984f, -0.6691306f, -0.6560590f, -0.6427876f, -0.6293204f, -0.6156615f, -0.6018150f, -0.5877853f, -0.5735764f, -0.5591929f, -0.5446390f, -0.5299193f, -0.5150381f, -0.5000000f, -0.4848096f, -0.4694716f, -0.4539905f, -0.4383711f, -0.4226183f, -0.4067366f, -0.3907311f, -0.3746066f, -0.3583679f, -0.3420201f, -0.3255682f, -0.3090170f, -0.2923717f, -0.2756374f, -0.2588190f, -0.2419219f, -0.2249511f, -0.2079117f, -0.1908090f, -0.1736482f, -0.1564345f, -0.1391731f, -0.1218693f, -0.1045285f, -0.0871557f, -0.0697565f, -0.0523360f, -0.0348995f, -0.0174524f, -0.0000000f, 0.0174524f, 0.0348995f, 0.0523360f, 0.0697565f, 0.0871557f, 0.1045285f, 0.1218693f, 0.1391731f, 0.1564345f, 0.1736482f, 0.1908090f, 0.2079117f, 0.2249511f, 0.2419219f, 0.2588190f, 0.2756374f, 0.2923717f, 0.3090170f, 0.3255682f, 0.3420201f, 0.3583679f, 0.3746066f, 0.3907311f, 0.4067366f, 0.4226183f, 0.4383711f, 0.4539905f, 0.4694716f, 0.4848096f, 0.5000000f, 0.5150381f, 0.5299193f, 0.5446390f, 0.5591929f, 0.5735764f, 0.5877853f, 0.6018150f, 0.6156615f, 0.6293204f, 0.6427876f, 0.6560590f, 0.6691306f, 0.6819984f, 0.6946584f, 0.7071068f, 0.7193398f, 0.7313537f, 0.7431448f, 0.7547096f, 0.7660444f, 0.7771460f, 0.7880108f, 0.7986355f, 0.8090170f, 0.8191520f, 0.8290376f, 0.8386706f, 0.8480481f, 0.8571673f, 0.8660254f, 0.8746197f, 0.8829476f, 0.8910065f, 0.8987940f, 0.9063078f, 0.9135455f, 0.9205049f, 0.9271839f, 0.9335804f, 0.9396926f, 0.9455186f, 0.9510565f, 0.9563048f, 0.9612617f, 0.9659258f, 0.9702957f, 0.9743701f, 0.9781476f, 0.9816272f, 0.9848078f, 0.9876883f, 0.9902681f, 0.9925462f, 0.9945219f, 0.9961947f, 0.9975641f, 0.9986295f, 0.9993908f, 0.9998477f, 1.0000000f }; static void icvSinCos( int angle, float *cosval, float *sinval ) { angle += (angle < 0 ? 360 : 0); *sinval = icvSinTable[angle]; *cosval = icvSinTable[450 - angle]; } /* constructs polygon that represents elliptic arc. */ CV_IMPL int cvEllipse2Poly( CvPoint center, CvSize axes, int angle, int arc_start, int arc_end, CvPoint* pts, int delta ) { float alpha, beta; double size_a = axes.width, size_b = axes.height; double cx = center.x, cy = center.y; CvPoint *pts_origin = pts; int i; while( angle < 0 ) angle += 360; while( angle > 360 ) angle -= 360; if( arc_start > arc_end ) { i = arc_start; arc_start = arc_end; arc_end = i; } while( arc_start < 0 ) { arc_start += 360; arc_end += 360; } while( arc_end > 360 ) { arc_end -= 360; arc_start -= 360; } if( arc_end - arc_start > 360 ) { arc_start = 0; arc_end = 360; } icvSinCos( angle, &alpha, &beta ); for( i = arc_start; i < arc_end + delta; i += delta ) { double x, y; angle = i; if( angle > arc_end ) angle = arc_end; if( angle < 0 ) angle += 360; x = size_a * icvSinTable[450-angle]; y = size_b * icvSinTable[angle]; pts->x = cvRound( cx + x * alpha - y * beta ); pts->y = cvRound( cy - x * beta - y * alpha ); pts += i == arc_start || pts->x != pts[-1].x || pts->y != pts[-1].y; } i = (int)(pts - pts_origin); for( ; i < 2; i++ ) pts_origin[i] = pts_origin[i-1]; return i; } static void icvEllipseEx( CvMat* img, CvPoint center, CvSize axes, int angle, int arc_start, int arc_end, const void* color, int thickness, int line_type ) { CvMemStorage* st = 0; CV_FUNCNAME( "icvEllipseEx" ); __BEGIN__; CvPoint v[1 << 8]; int count, delta; if( axes.width < 0 || axes.height < 0 ) CV_ERROR( CV_StsBadSize, "" ); delta = (MAX(axes.width,axes.height)+(XY_ONE>>1))>>XY_SHIFT; delta = delta < 3 ? 90 : delta < 10 ? 30 : delta < 15 ? 18 : 5; count = cvEllipse2Poly( center, axes, angle, arc_start, arc_end, v, delta ); if( thickness >= 0 ) { icvPolyLine( img, v, count, 0, color, thickness, line_type, XY_SHIFT ); } else if( arc_end - arc_start >= 360 ) { icvFillConvexPoly( img, v, count, color, line_type, XY_SHIFT ); } else { CvContour* edges; CvSeq vtx; CvSeqBlock block; CV_CALL( st = cvCreateMemStorage( CV_DRAWING_STORAGE_BLOCK )); CV_CALL( edges = (CvContour*)cvCreateSeq( 0, sizeof(CvContour), sizeof(CvPolyEdge), st )); v[count++] = center; CV_CALL( cvMakeSeqHeaderForArray( CV_32SC2, sizeof(CvSeq), sizeof(CvPoint), v, count, &vtx, &block )); CV_CALL( icvCollectPolyEdges( img, &vtx, edges, color, line_type, XY_SHIFT )); CV_CALL( icvFillEdgeCollection( img, edges, color )); } __END__; if( st ) cvReleaseMemStorage( &st ); } /****************************************************************************************\ * Polygons filling * \****************************************************************************************/ /* helper macros: filling horizontal row */ #define ICV_HLINE( ptr, xl, xr, color, pix_size ) \ { \ uchar* hline_ptr = (uchar*)(ptr) + (xl)*(pix_size); \ uchar* hline_max_ptr = (uchar*)(ptr) + (xr)*(pix_size); \ \ for( ; hline_ptr <= hline_max_ptr; hline_ptr += (pix_size))\ { \ int hline_j; \ for( hline_j = 0; hline_j < (pix_size); hline_j++ ) \ { \ hline_ptr[hline_j] = ((uchar*)color)[hline_j]; \ } \ } \ } /* filling convex polygon. v - array of vertices, ntps - number of points */ static void icvFillConvexPoly( CvMat* img, CvPoint *v, int npts, const void* color, int line_type, int shift ) { struct { int idx, di; int x, dx, ye; } edge[2]; int delta = shift ? 1 << (shift - 1) : 0; int i, y, imin = 0, left = 0, right = 1, x1, x2; int edges = npts; int xmin, xmax, ymin, ymax; uchar* ptr = img->data.ptr; CvSize size = cvGetMatSize( img ); int pix_size = CV_ELEM_SIZE(img->type); CvPoint p0; int delta1, delta2; if( line_type < CV_AA ) delta1 = delta2 = XY_ONE >> 1; //delta1 = 0, delta2 = XY_ONE - 1; else delta1 = XY_ONE - 1, delta2 = 0; p0 = v[npts - 1]; p0.x <<= XY_SHIFT - shift; p0.y <<= XY_SHIFT - shift; assert( 0 <= shift && shift <= XY_SHIFT ); xmin = xmax = v[0].x; ymin = ymax = v[0].y; for( i = 0; i < npts; i++ ) { CvPoint p = v[i]; if( p.y < ymin ) { ymin = p.y; imin = i; } ymax = MAX( ymax, p.y ); xmax = MAX( xmax, p.x ); xmin = MIN( xmin, p.x ); p.x <<= XY_SHIFT - shift; p.y <<= XY_SHIFT - shift; if( line_type <= 8 ) { if( shift == 0 ) { CvPoint pt0, pt1; pt0.x = p0.x >> XY_SHIFT; pt0.y = p0.y >> XY_SHIFT; pt1.x = p.x >> XY_SHIFT; pt1.y = p.y >> XY_SHIFT; icvLine( img, pt0, pt1, color, line_type ); } else icvLine2( img, p0, p, color ); } else icvLineAA( img, p0, p, color ); p0 = p; } xmin = (xmin + delta) >> shift; xmax = (xmax + delta) >> shift; ymin = (ymin + delta) >> shift; ymax = (ymax + delta) >> shift; if( npts < 3 || xmax < 0 || ymax < 0 || xmin >= size.width || ymin >= size.height ) return; ymax = MIN( ymax, size.height - 1 ); edge[0].idx = edge[1].idx = imin; edge[0].ye = edge[1].ye = y = ymin; edge[0].di = 1; edge[1].di = npts - 1; ptr += img->step*y; do { if( line_type < CV_AA || y < ymax || y == ymin ) { for( i = 0; i < 2; i++ ) { if( y >= edge[i].ye ) { int idx = edge[i].idx, di = edge[i].di; int xs = 0, xe, ye, ty = 0; for(;;) { ty = (v[idx].y + delta) >> shift; if( ty > y || edges == 0 ) break; xs = v[idx].x; idx += di; idx -= ((idx < npts) - 1) & npts; /* idx -= idx >= npts ? npts : 0 */ edges--; } ye = ty; xs <<= XY_SHIFT - shift; xe = v[idx].x << (XY_SHIFT - shift); /* no more edges */ if( y >= ye ) return; edge[i].ye = ye; edge[i].dx = ((xe - xs)*2 + (ye - y)) / (2 * (ye - y)); edge[i].x = xs; edge[i].idx = idx; } } } if( edge[left].x > edge[right].x ) { left ^= 1; right ^= 1; } x1 = edge[left].x; x2 = edge[right].x; if( y >= 0 ) { int xx1 = (x1 + delta1) >> XY_SHIFT; int xx2 = (x2 + delta2) >> XY_SHIFT; if( xx2 >= 0 && xx1 < size.width ) { if( xx1 < 0 ) xx1 = 0; if( xx2 >= size.width ) xx2 = size.width - 1; ICV_HLINE( ptr, xx1, xx2, color, pix_size ); } } x1 += edge[left].dx; x2 += edge[right].dx; edge[left].x = x1; edge[right].x = x2; ptr += img->step; } while( ++y <= ymax ); } /******** Arbitrary polygon **********/ static void icvCollectPolyEdges( CvMat* img, CvSeq* v, CvContour* edges, const void* color, int line_type, int shift, CvPoint offset ) { int i, count = v->total; CvRect bounds = edges->rect; int delta = offset.y + (shift ? 1 << (shift - 1) : 0); int elem_type = CV_MAT_TYPE(v->flags); CvSeqReader reader; CvSeqWriter writer; cvStartReadSeq( v, &reader ); cvStartAppendToSeq( (CvSeq*)edges, &writer ); for( i = 0; i < count; i++ ) { CvPoint pt0, pt1, t0, t1; CvPolyEdge edge; CV_READ_EDGE( pt0, pt1, reader ); if( elem_type == CV_32SC2 ) { pt0.x = (pt0.x + offset.x) << (XY_SHIFT - shift); pt0.y = (pt0.y + delta) >> shift; pt1.x = (pt1.x + offset.x) << (XY_SHIFT - shift); pt1.y = (pt1.y + delta) >> shift; } else { Cv32suf x, y; assert( shift == 0 ); x.i = pt0.x; y.i = pt0.y; pt0.x = cvRound((x.f + offset.x) * XY_ONE); pt0.y = cvRound(y.f + offset.y); x.i = pt1.x; y.i = pt1.y; pt1.x = cvRound((x.f + offset.x) * XY_ONE); pt1.y = cvRound(y.f + offset.y); } if( line_type < CV_AA ) { t0.y = pt0.y; t1.y = pt1.y; t0.x = (pt0.x + (XY_ONE >> 1)) >> XY_SHIFT; t1.x = (pt1.x + (XY_ONE >> 1)) >> XY_SHIFT; icvLine( img, t0, t1, color, line_type ); } else { t0.x = pt0.x; t1.x = pt1.x; t0.y = pt0.y << XY_SHIFT; t1.y = pt1.y << XY_SHIFT; icvLineAA( img, t0, t1, color ); } if( pt0.y == pt1.y ) continue; if( pt0.y > pt1.y ) CV_SWAP( pt0, pt1, t0 ); bounds.y = MIN( bounds.y, pt0.y ); bounds.height = MAX( bounds.height, pt1.y ); if( pt0.x < pt1.x ) { bounds.x = MIN( bounds.x, pt0.x ); bounds.width = MAX( bounds.width, pt1.x ); } else { bounds.x = MIN( bounds.x, pt1.x ); bounds.width = MAX( bounds.width, pt0.x ); } edge.y0 = pt0.y; edge.y1 = pt1.y; edge.x = pt0.x; edge.dx = (pt1.x - pt0.x) / (pt1.y - pt0.y); assert( edge.y0 < edge.y1 ); CV_WRITE_SEQ_ELEM( edge, writer ); } edges->rect = bounds; cvEndWriteSeq( &writer ); } static int icvCmpEdges( const void* _e1, const void* _e2, void* /*userdata*/ ) { CvPolyEdge *e1 = (CvPolyEdge*)_e1, *e2 = (CvPolyEdge*)_e2; return e1->y0 - e2->y0 ? e1->y0 - e2->y0 : e1->x - e2->x ? e1->x - e2->x : e1->dx - e2->dx; } /**************** helper macros and functions for sequence/contour processing ***********/ static void icvFillEdgeCollection( CvMat* img, CvContour* edges, const void* color ) { CvPolyEdge tmp; int i, y, total = edges->total; CvSeqReader reader; CvSize size = cvGetMatSize(img); CvPolyEdge* e; int y_max = INT_MIN; int pix_size = CV_ELEM_SIZE(img->type); __BEGIN__; memset( &tmp, 0, sizeof(tmp)); /* check parameters */ if( edges->total < 2 || edges->rect.height < 0 || edges->rect.y >= size.height || edges->rect.width < 0 || edges->rect.x >= size.width ) EXIT; cvSeqSort( (CvSeq*)edges, icvCmpEdges, 0 ); cvStartReadSeq( (CvSeq*)edges, &reader ); #ifdef _DEBUG e = &tmp; tmp.y0 = INT_MIN; #endif for( i = 0; i < total; i++ ) { CvPolyEdge* e1 = (CvPolyEdge*)(reader.ptr); #ifdef _DEBUG assert( e1->y0 < e1->y1 && (i == 0 || icvCmpEdges( e, e1, 0 ) <= 0) ); e = e1; #endif y_max = MAX( y_max, e1->y1 ); CV_NEXT_SEQ_ELEM( sizeof(CvPolyEdge), reader ); } /* start drawing */ tmp.y0 = INT_MAX; cvSeqPush( (CvSeq*)edges, &tmp ); i = 0; tmp.next = 0; cvStartReadSeq( (CvSeq*)edges, &reader ); e = (CvPolyEdge*)(reader.ptr); y_max = MIN( y_max, size.height ); for( y = e->y0; y < y_max; y++ ) { CvPolyEdge *last, *prelast, *keep_prelast; int sort_flag = 0; int draw = 0; int clipline = y < 0; prelast = &tmp; last = tmp.next; while( last || e->y0 == y ) { if( last && last->y1 == y ) { /* exlude edge if y reachs its lower point */ prelast->next = last->next; last = last->next; continue; } keep_prelast = prelast; if( last && (e->y0 > y || last->x < e->x) ) { /* go to the next edge in active list */ prelast = last; last = last->next; } else if( i < total ) { /* insert new edge into active list if y reachs its upper point */ prelast->next = e; e->next = last; prelast = e; CV_NEXT_SEQ_ELEM( edges->elem_size, reader ); e = (CvPolyEdge*)(reader.ptr); i++; } else break; if( draw ) { if( !clipline ) { /* convert x's from fixed-point to image coordinates */ uchar *timg = (uchar*)(img->data.ptr) + y * img->step; int x1 = keep_prelast->x; int x2 = prelast->x; if( x1 > x2 ) { int t = x1; x1 = x2; x2 = t; } x1 = (x1 + XY_ONE - 1) >> XY_SHIFT; x2 = x2 >> XY_SHIFT; /* clip and draw the line */ if( x1 < size.width && x2 >= 0 ) { if( x1 < 0 ) x1 = 0; if( x2 >= size.width ) x2 = size.width - 1; ICV_HLINE( timg, x1, x2, color, pix_size ); } } keep_prelast->x += keep_prelast->dx; prelast->x += prelast->dx; } draw ^= 1; } /* sort edges (bubble sort on list) */ keep_prelast = 0; do { prelast = &tmp; last = tmp.next; while( last != keep_prelast && last->next != 0 ) { CvPolyEdge *te = last->next; /* swap edges */ if( last->x > te->x ) { prelast->next = te; last->next = te->next; te->next = last; prelast = te; sort_flag = 1; } else { prelast = last; last = te; } } keep_prelast = prelast; } while( sort_flag && keep_prelast != tmp.next && keep_prelast != &tmp ); } __END__; } /* draws simple or filled circle */ static void icvCircle( CvMat* img, CvPoint center, int radius, const void* color, int fill ) { CvSize size = cvGetMatSize( img ); int step = img->step; int pix_size = CV_ELEM_SIZE(img->type); uchar* ptr = (uchar*)(img->data.ptr); int err = 0, dx = radius, dy = 0, plus = 1, minus = (radius << 1) - 1; int inside = center.x >= radius && center.x < size.width - radius && center.y >= radius && center.y < size.height - radius; #define ICV_PUT_POINT( ptr, x ) \ CV_MEMCPY_CHAR( ptr + (x)*pix_size, color, pix_size ); while( dx >= dy ) { int mask; int y11 = center.y - dy, y12 = center.y + dy, y21 = center.y - dx, y22 = center.y + dx; int x11 = center.x - dx, x12 = center.x + dx, x21 = center.x - dy, x22 = center.x + dy; if( inside ) { uchar *tptr0 = ptr + y11 * step; uchar *tptr1 = ptr + y12 * step; if( !fill ) { ICV_PUT_POINT( tptr0, x11 ); ICV_PUT_POINT( tptr1, x11 ); ICV_PUT_POINT( tptr0, x12 ); ICV_PUT_POINT( tptr1, x12 ); } else { ICV_HLINE( tptr0, x11, x12, color, pix_size ); ICV_HLINE( tptr1, x11, x12, color, pix_size ); } tptr0 = ptr + y21 * step; tptr1 = ptr + y22 * step; if( !fill ) { ICV_PUT_POINT( tptr0, x21 ); ICV_PUT_POINT( tptr1, x21 ); ICV_PUT_POINT( tptr0, x22 ); ICV_PUT_POINT( tptr1, x22 ); } else { ICV_HLINE( tptr0, x21, x22, color, pix_size ); ICV_HLINE( tptr1, x21, x22, color, pix_size ); } } else if( x11 < size.width && x12 >= 0 && y21 < size.height && y22 >= 0 ) { if( fill ) { x11 = MAX( x11, 0 ); x12 = MIN( x12, size.width - 1 ); } if( (unsigned)y11 < (unsigned)size.height ) { uchar *tptr = ptr + y11 * step; if( !fill ) { if( x11 >= 0 ) ICV_PUT_POINT( tptr, x11 ); if( x12 < size.width ) ICV_PUT_POINT( tptr, x12 ); } else ICV_HLINE( tptr, x11, x12, color, pix_size ); } if( (unsigned)y12 < (unsigned)size.height ) { uchar *tptr = ptr + y12 * step; if( !fill ) { if( x11 >= 0 ) ICV_PUT_POINT( tptr, x11 ); if( x12 < size.width ) ICV_PUT_POINT( tptr, x12 ); } else ICV_HLINE( tptr, x11, x12, color, pix_size ); } if( x21 < size.width && x22 >= 0 ) { if( fill ) { x21 = MAX( x21, 0 ); x22 = MIN( x22, size.width - 1 ); } if( (unsigned)y21 < (unsigned)size.height ) { uchar *tptr = ptr + y21 * step; if( !fill ) { if( x21 >= 0 ) ICV_PUT_POINT( tptr, x21 ); if( x22 < size.width ) ICV_PUT_POINT( tptr, x22 ); } else ICV_HLINE( tptr, x21, x22, color, pix_size ); } if( (unsigned)y22 < (unsigned)size.height ) { uchar *tptr = ptr + y22 * step; if( !fill ) { if( x21 >= 0 ) ICV_PUT_POINT( tptr, x21 ); if( x22 < size.width ) ICV_PUT_POINT( tptr, x22 ); } else ICV_HLINE( tptr, x21, x22, color, pix_size ); } } } dy++; err += plus; plus += 2; mask = (err <= 0) - 1; err -= minus & mask; dx += mask; minus -= mask & 2; } #undef ICV_PUT_POINT } static void icvThickLine( CvMat* img, CvPoint p0, CvPoint p1, const void* color, int thickness, int line_type, int flags, int shift ) { static const double INV_XY_ONE = 1./XY_ONE; p0.x <<= XY_SHIFT - shift; p0.y <<= XY_SHIFT - shift; p1.x <<= XY_SHIFT - shift; p1.y <<= XY_SHIFT - shift; if( thickness <= 1 ) { if( line_type < CV_AA ) { if( line_type == 1 || line_type == 4 || shift == 0 ) { p0.x = (p0.x + (XY_ONE>>1)) >> XY_SHIFT; p0.y = (p0.y + (XY_ONE>>1)) >> XY_SHIFT; p1.x = (p1.x + (XY_ONE>>1)) >> XY_SHIFT; p1.y = (p1.y + (XY_ONE>>1)) >> XY_SHIFT; icvLine( img, p0, p1, color, line_type ); } else icvLine2( img, p0, p1, color ); } else icvLineAA( img, p0, p1, color ); } else { CvPoint pt[4], dp = {0,0}; double dx = (p0.x - p1.x)*INV_XY_ONE, dy = (p1.y - p0.y)*INV_XY_ONE; double r = dx * dx + dy * dy; int i; thickness <<= XY_SHIFT - 1; if( fabs(r) > DBL_EPSILON ) { r = thickness * cvInvSqrt( (float) r ); dp.x = cvRound( dy * r ); dp.y = cvRound( dx * r ); } pt[0].x = p0.x + dp.x; pt[0].y = p0.y + dp.y; pt[1].x = p0.x - dp.x; pt[1].y = p0.y - dp.y; pt[2].x = p1.x - dp.x; pt[2].y = p1.y - dp.y; pt[3].x = p1.x + dp.x; pt[3].y = p1.y + dp.y; icvFillConvexPoly( img, pt, 4, color, line_type, XY_SHIFT ); for( i = 0; i < 2; i++ ) { if( flags & (i+1) ) { if( line_type < CV_AA ) { CvPoint center; center.x = (p0.x + (XY_ONE>>1)) >> XY_SHIFT; center.y = (p0.y + (XY_ONE>>1)) >> XY_SHIFT; icvCircle( img, center, thickness >> XY_SHIFT, color, 1 ); } else { icvEllipseEx( img, p0, cvSize(thickness, thickness), 0, 0, 360, color, -1, line_type ); } } p0 = p1; } } } static void icvPolyLine( CvMat* img, CvPoint *v, int count, int is_closed, const void* color, int thickness, int line_type, int shift ) { CV_FUNCNAME("icvPolyLine"); __BEGIN__; if( count > 0 ) { int i = is_closed ? count - 1 : 0; int flags = 2 + !is_closed; CvPoint p0; assert( 0 <= shift && shift <= XY_SHIFT ); assert( img && thickness >= 0 ); assert( v && count >= 0 ); if( !v ) CV_ERROR( CV_StsNullPtr, "" ); p0 = v[i]; for( i = !is_closed; i < count; i++ ) { CvPoint p = v[i]; icvThickLine( img, p0, p, color, thickness, line_type, flags, shift ); p0 = p; flags = 2; } } __END__; } /****************************************************************************************\ * External functions * \****************************************************************************************/ CV_IMPL CvScalar cvColorToScalar( double packed_color, int type ) { CvScalar scalar; if( CV_MAT_DEPTH( type ) == CV_8U ) { int icolor = cvRound( packed_color ); if( CV_MAT_CN( type ) > 1 ) { scalar.val[0] = icolor & 255; scalar.val[1] = (icolor >> 8) & 255; scalar.val[2] = (icolor >> 16) & 255; scalar.val[3] = (icolor >> 24) & 255; } else { scalar.val[0] = CV_CAST_8U( icolor ); scalar.val[1] = scalar.val[2] = scalar.val[3] = 0; } } else if( CV_MAT_DEPTH( type ) == CV_8S ) { int icolor = cvRound( packed_color ); if( CV_MAT_CN( type ) > 1 ) { scalar.val[0] = (char)icolor; scalar.val[1] = (char)(icolor >> 8); scalar.val[2] = (char)(icolor >> 16); scalar.val[3] = (char)(icolor >> 24); } else { scalar.val[0] = CV_CAST_8S( icolor ); scalar.val[1] = scalar.val[2] = scalar.val[3] = 0; } } else { int cn = CV_MAT_CN( type ); switch( cn ) { case 1: scalar.val[0] = packed_color; scalar.val[1] = scalar.val[2] = scalar.val[3] = 0; break; case 2: scalar.val[0] = scalar.val[1] = packed_color; scalar.val[2] = scalar.val[3] = 0; break; case 3: scalar.val[0] = scalar.val[1] = scalar.val[2] = packed_color; scalar.val[3] = 0; break; default: scalar.val[0] = scalar.val[1] = scalar.val[2] = scalar.val[3] = packed_color; break; } } return scalar; } CV_IMPL void cvLine( void* img, CvPoint pt1, CvPoint pt2, CvScalar color, int thickness, int line_type, int shift ) { CV_FUNCNAME( "cvLine" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( img, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( (unsigned)thickness > 255 ) CV_ERROR( CV_StsOutOfRange, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); icvThickLine( mat, pt1, pt2, buf, thickness, line_type, 3, shift ); __END__; } CV_IMPL void cvRectangle( void* img, CvPoint pt1, CvPoint pt2, CvScalar color, int thickness, int line_type, int shift ) { CvPoint pt[4]; CV_FUNCNAME("cvRectangle"); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; if( thickness > 255 ) CV_ERROR( CV_StsOutOfRange, "" ); CV_CALL( mat = cvGetMat( img, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); pt[0] = pt1; pt[1].x = pt2.x; pt[1].y = pt1.y; pt[2] = pt2; pt[3].x = pt1.x; pt[3].y = pt2.y; if( thickness >= 0 ) icvPolyLine( mat, pt, 4, 1, buf, thickness, line_type, shift ); else icvFillConvexPoly( mat, pt, 4, buf, line_type, shift ); __END__; } CV_IMPL void cvCircle( void *img, CvPoint center, int radius, CvScalar color, int thickness, int line_type, int shift ) { CV_FUNCNAME( "cvCircle" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( radius < 0 ) CV_ERROR( CV_StsOutOfRange, "" ); if( thickness > 255 ) CV_ERROR( CV_StsOutOfRange, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); if( thickness > 1 || line_type >= CV_AA ) { center.x <<= XY_SHIFT - shift; center.y <<= XY_SHIFT - shift; radius <<= XY_SHIFT - shift; icvEllipseEx( mat, center, cvSize( radius, radius ), 0, 0, 360, buf, thickness, line_type ); } else { icvCircle( mat, center, radius, buf, thickness < 0 ); } __END__; } CV_IMPL void cvEllipse( void *img, CvPoint center, CvSize axes, double angle, double start_angle, double end_angle, CvScalar color, int thickness, int line_type, int shift ) { CV_FUNCNAME( "cvEllipse" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( axes.width < 0 || axes.height < 0 ) CV_ERROR( CV_StsOutOfRange, "" ); if( thickness > 255 ) CV_ERROR( CV_StsOutOfRange, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); { int _angle = cvRound(angle); int _start_angle = cvRound(start_angle); int _end_angle = cvRound(end_angle); center.x <<= XY_SHIFT - shift; center.y <<= XY_SHIFT - shift; axes.width <<= XY_SHIFT - shift; axes.height <<= XY_SHIFT - shift; CV_CALL( icvEllipseEx( mat, center, axes, _angle, _start_angle, _end_angle, buf, thickness, line_type )); } __END__; } CV_IMPL void cvFillConvexPoly( void *img, CvPoint *pts, int npts, CvScalar color, int line_type, int shift ) { CV_FUNCNAME( "cvFillConvexPoly" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( !pts ) CV_ERROR( CV_StsNullPtr, "" ); if( npts <= 0 ) CV_ERROR( CV_StsOutOfRange, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); icvFillConvexPoly( mat, pts, npts, buf, line_type, shift ); __END__; } CV_IMPL void cvFillPoly( void *img, CvPoint **pts, int *npts, int contours, CvScalar color, int line_type, int shift ) { CvMemStorage* st = 0; CV_FUNCNAME( "cvFillPoly" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( contours <= 0 ) CV_ERROR( CV_StsBadArg, "" ); if( !pts ) CV_ERROR( CV_StsNullPtr, "" ); if( npts <= 0 ) CV_ERROR( CV_StsNullPtr, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); { CvContour* edges = 0; CvSeq vtx; CvSeqBlock block; CV_CALL( st = cvCreateMemStorage( CV_DRAWING_STORAGE_BLOCK )); CV_CALL( edges = (CvContour*)cvCreateSeq( 0, sizeof(CvContour), sizeof(CvPolyEdge), st )); for( int i = 0; i < contours; i++ ) { if( !pts[i] ) CV_ERROR( CV_StsNullPtr, "" ); if( npts[i] < 0 ) CV_ERROR( CV_StsOutOfRange, "" ); cvMakeSeqHeaderForArray( CV_32SC2, sizeof(CvSeq), sizeof(CvPoint), pts[i], npts[i], &vtx, &block ); CV_CALL( icvCollectPolyEdges( mat, &vtx, edges, buf, line_type, shift )); } CV_CALL( icvFillEdgeCollection( mat, edges, buf )); } __END__; cvReleaseMemStorage( &st ); } CV_IMPL void cvPolyLine( void *img, CvPoint **pts, int *npts, int contours, int closed, CvScalar color, int thickness, int line_type, int shift ) { CV_FUNCNAME( "cvPolyLine" ); __BEGIN__; int coi = 0, i; CvMat stub, *mat = (CvMat*)img; double buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( contours <= 0 ) CV_ERROR( CV_StsBadArg, "" ); if( thickness < -1 || thickness > 255 ) CV_ERROR( CV_StsBadArg, "" ); if( !pts ) CV_ERROR( CV_StsNullPtr, "" ); if( npts <= 0 ) CV_ERROR( CV_StsNullPtr, "" ); if( shift < 0 || XY_SHIFT < shift ) CV_ERROR( CV_StsOutOfRange, "shift must be between 0 and 16" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); for( i = 0; i < contours; i++ ) icvPolyLine( mat, pts[i], npts[i], closed, buf, thickness, line_type, shift ); __END__; } #define CV_FONT_SIZE_SHIFT 8 #define CV_FONT_ITALIC_ALPHA (1 << 8) #define CV_FONT_ITALIC_DIGIT (2 << 8) #define CV_FONT_ITALIC_PUNCT (4 << 8) #define CV_FONT_ITALIC_BRACES (8 << 8) #define CV_FONT_HAVE_GREEK (16 << 8) #define CV_FONT_HAVE_CYRILLIC (32 << 8) static const int icvHersheyPlain[] = { (5 + 4*16) + CV_FONT_HAVE_GREEK, 199, 214, 217, 233, 219, 197, 234, 216, 221, 222, 228, 225, 211, 224, 210, 220, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 212, 213, 191, 226, 192, 215, 190, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 193, 84, 194, 85, 86, 87, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 195, 223, 196, 88 }; static const int icvHersheyPlainItalic[] = { (5 + 4*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_HAVE_GREEK, 199, 214, 217, 233, 219, 197, 234, 216, 221, 222, 228, 225, 211, 224, 210, 220, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 212, 213, 191, 226, 192, 215, 190, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 193, 84, 194, 85, 86, 87, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 195, 223, 196, 88 }; static const int icvHersheyComplexSmall[] = { (6 + 7*16) + CV_FONT_HAVE_GREEK, 1199, 1214, 1217, 1275, 1274, 1271, 1272, 1216, 1221, 1222, 1219, 1232, 1211, 1231, 1210, 1220, 1200, 1201, 1202, 1203, 1204, 1205, 1206, 1207, 1208, 1209, 1212, 2213, 1241, 1238, 1242, 1215, 1273, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1223, 1084, 1224, 1247, 586, 1249, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120, 1121, 1122, 1123, 1124, 1125, 1126, 1225, 1229, 1226, 1246 }; static const int icvHersheyComplexSmallItalic[] = { (6 + 7*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_HAVE_GREEK, 1199, 1214, 1217, 1275, 1274, 1271, 1272, 1216, 1221, 1222, 1219, 1232, 1211, 1231, 1210, 1220, 1200, 1201, 1202, 1203, 1204, 1205, 1206, 1207, 1208, 1209, 1212, 1213, 1241, 1238, 1242, 1215, 1273, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1223, 1084, 1224, 1247, 586, 1249, 1151, 1152, 1153, 1154, 1155, 1156, 1157, 1158, 1159, 1160, 1161, 1162, 1163, 1164, 1165, 1166, 1167, 1168, 1169, 1170, 1171, 1172, 1173, 1174, 1175, 1176, 1225, 1229, 1226, 1246 }; static const int icvHersheySimplex[] = { (9 + 12*16) + CV_FONT_HAVE_GREEK, 2199, 714, 717, 733, 719, 697, 734, 716, 721, 722, 728, 725, 711, 724, 710, 720, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 712, 713, 691, 726, 692, 715, 690, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 693, 584, 694, 2247, 586, 2249, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 695, 723, 696, 2246 }; static const int icvHersheyDuplex[] = { (9 + 12*16) + CV_FONT_HAVE_GREEK, 2199, 2714, 2728, 2732, 2719, 2733, 2718, 2727, 2721, 2722, 2723, 2725, 2711, 2724, 2710, 2720, 2700, 2701, 2702, 2703, 2704, 2705, 2706, 2707, 2708, 2709, 2712, 2713, 2730, 2726, 2731, 2715, 2734, 2501, 2502, 2503, 2504, 2505, 2506, 2507, 2508, 2509, 2510, 2511, 2512, 2513, 2514, 2515, 2516, 2517, 2518, 2519, 2520, 2521, 2522, 2523, 2524, 2525, 2526, 2223, 2084, 2224, 2247, 587, 2249, 2601, 2602, 2603, 2604, 2605, 2606, 2607, 2608, 2609, 2610, 2611, 2612, 2613, 2614, 2615, 2616, 2617, 2618, 2619, 2620, 2621, 2622, 2623, 2624, 2625, 2626, 2225, 2229, 2226, 2246 }; static const int icvHersheyComplex[] = { (9 + 12*16) + CV_FONT_HAVE_GREEK + CV_FONT_HAVE_CYRILLIC, 2199, 2214, 2217, 2275, 2274, 2271, 2272, 2216, 2221, 2222, 2219, 2232, 2211, 2231, 2210, 2220, 2200, 2201, 2202, 2203, 2204, 2205, 2206, 2207, 2208, 2209, 2212, 2213, 2241, 2238, 2242, 2215, 2273, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2223, 2084, 2224, 2247, 587, 2249, 2101, 2102, 2103, 2104, 2105, 2106, 2107, 2108, 2109, 2110, 2111, 2112, 2113, 2114, 2115, 2116, 2117, 2118, 2119, 2120, 2121, 2122, 2123, 2124, 2125, 2126, 2225, 2229, 2226, 2246 }; static const int icvHersheyComplexItalic[] = { (9 + 12*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_ITALIC_DIGIT + CV_FONT_ITALIC_PUNCT + CV_FONT_HAVE_GREEK + CV_FONT_HAVE_CYRILLIC, 2199, 2764, 2778, 2782, 2769, 2783, 2768, 2777, 2771, 2772, 2219, 2232, 2211, 2231, 2210, 2220, 2750, 2751, 2752, 2753, 2754, 2755, 2756, 2757, 2758, 2759, 2212, 2213, 2241, 2238, 2242, 2765, 2273, 2051, 2052, 2053, 2054, 2055, 2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, 2064, 2065, 2066, 2067, 2068, 2069, 2070, 2071, 2072, 2073, 2074, 2075, 2076, 2223, 2084, 2224, 2247, 587, 2249, 2151, 2152, 2153, 2154, 2155, 2156, 2157, 2158, 2159, 2160, 2161, 2162, 2163, 2164, 2165, 2166, 2167, 2168, 2169, 2170, 2171, 2172, 2173, 2174, 2175, 2176, 2225, 2229, 2226, 2246 }; static const int icvHersheyTriplex[] = { (9 + 12*16) + CV_FONT_HAVE_GREEK, 2199, 3214, 3228, 3232, 3219, 3233, 3218, 3227, 3221, 3222, 3223, 3225, 3211, 3224, 3210, 3220, 3200, 3201, 3202, 3203, 3204, 3205, 3206, 3207, 3208, 3209, 3212, 3213, 3230, 3226, 3231, 3215, 3234, 3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3009, 3010, 3011, 3012, 3013, 2014, 3015, 3016, 3017, 3018, 3019, 3020, 3021, 3022, 3023, 3024, 3025, 3026, 2223, 2084, 2224, 2247, 587, 2249, 3101, 3102, 3103, 3104, 3105, 3106, 3107, 3108, 3109, 3110, 3111, 3112, 3113, 3114, 3115, 3116, 3117, 3118, 3119, 3120, 3121, 3122, 3123, 3124, 3125, 3126, 2225, 2229, 2226, 2246 }; static const int icvHersheyTriplexItalic[] = { (9 + 12*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_ITALIC_DIGIT + CV_FONT_ITALIC_PUNCT + CV_FONT_HAVE_GREEK, 2199, 3264, 3278, 3282, 3269, 3233, 3268, 3277, 3271, 3272, 3223, 3225, 3261, 3224, 3260, 3270, 3250, 3251, 3252, 3253, 3254, 3255, 3256, 3257, 3258, 3259, 3262, 3263, 3230, 3226, 3231, 3265, 3234, 3051, 3052, 3053, 3054, 3055, 3056, 3057, 3058, 3059, 3060, 3061, 3062, 3063, 2064, 3065, 3066, 3067, 3068, 3069, 3070, 3071, 3072, 3073, 3074, 3075, 3076, 2223, 2084, 2224, 2247, 587, 2249, 3151, 3152, 3153, 3154, 3155, 3156, 3157, 3158, 3159, 3160, 3161, 3162, 3163, 3164, 3165, 3166, 3167, 3168, 3169, 3170, 3171, 3172, 3173, 3174, 3175, 3176, 2225, 2229, 2226, 2246 }; static const int icvHersheyScriptSimplex[] = { (9 + 12*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_HAVE_GREEK, 2199, 714, 717, 733, 719, 697, 734, 716, 721, 722, 728, 725, 711, 724, 710, 720, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 712, 713, 691, 726, 692, 715, 690, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, 575, 576, 693, 584, 694, 2247, 586, 2249, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 695, 723, 696, 2246 }; static const int icvHersheyScriptComplex[] = { (9 + 12*16) + CV_FONT_ITALIC_ALPHA + CV_FONT_ITALIC_DIGIT + CV_FONT_ITALIC_PUNCT + CV_FONT_HAVE_GREEK, 2199, 2764, 2778, 2782, 2769, 2783, 2768, 2777, 2771, 2772, 2219, 2232, 2211, 2231, 2210, 2220, 2750, 2751, 2752, 2753, 2754, 2755, 2756, 2757, 2758, 2759, 2212, 2213, 2241, 2238, 2242, 2215, 2273, 2551, 2552, 2553, 2554, 2555, 2556, 2557, 2558, 2559, 2560, 2561, 2562, 2563, 2564, 2565, 2566, 2567, 2568, 2569, 2570, 2571, 2572, 2573, 2574, 2575, 2576, 2223, 2084, 2224, 2247, 586, 2249, 2651, 2652, 2653, 2654, 2655, 2656, 2657, 2658, 2659, 2660, 2661, 2662, 2663, 2664, 2665, 2666, 2667, 2668, 2669, 2670, 2671, 2672, 2673, 2674, 2675, 2676, 2225, 2229, 2226, 2246 }; CV_IMPL void cvPutText( void *img, const char *text, CvPoint org, const CvFont *font, CvScalar color ) { CV_FUNCNAME( "cvPutText" ); __BEGIN__; int view_x, view_y; int coi = 0; int top_bottom = 0, base_line; int hscale, vscale, default_shear, italic_shear; int thickness, line_type; CvMat stub, *mat = (CvMat*)img; double buf[4]; CvPoint pt[1 << 10]; int count; int i; const char **faces = icvHersheyGlyphs; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( CV_IS_IMAGE_HDR(img) && ((IplImage*)img)->origin ) top_bottom = 1; if( !text || !font || !font->ascii ) CV_ERROR( CV_StsNullPtr, "" ); CV_CALL( cvScalarToRawData( &color, buf, mat->type, 0 )); base_line = -(font->ascii[0] & 15); hscale = cvRound(font->hscale*XY_ONE); vscale = cvRound(font->vscale*XY_ONE); default_shear = cvRound(font->shear*font->vscale*XY_ONE); italic_shear = !(font->font_face & CV_FONT_ITALIC) ? 0 : cvRound(font->vscale*.25*XY_ONE); thickness = font->thickness; line_type = font->line_type; if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( top_bottom ) vscale = -vscale; view_x = org.x << XY_SHIFT; view_y = (org.y << XY_SHIFT) + base_line*vscale; for( i = 0; text[i] != '\0'; i++ ) { int c = (uchar)text[i]; int dx, shear = default_shear; const char* ptr; CvPoint p; if( c > 128 || c < ' ' ) c = '?'; if( italic_shear ) { if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z')) { if( !(font->ascii[0] & CV_FONT_ITALIC_ALPHA) ) shear += italic_shear; } else if( '0' <= c && c <= '9' ) { if( !(font->ascii[0] & CV_FONT_ITALIC_DIGIT) ) shear += italic_shear; } else if( c < 'A' ) { if( !(font->ascii[0] & CV_FONT_ITALIC_PUNCT) ) shear += italic_shear; } else { shear += italic_shear; } } ptr = faces[font->ascii[(c-' ')+1]]; p.x = (unsigned char)ptr[0] - 'R'; p.y = (unsigned char)ptr[1] - 'R'; dx = p.y*hscale; view_x -= p.x*hscale; count = 0; for( ptr += 2;; ) { if( *ptr == ' ' || !*ptr ) { if( count > 1 ) icvPolyLine( mat, pt, count, 0, buf, thickness, line_type, XY_SHIFT ); if( !*ptr++ ) break; count = 0; } else { p.x = (unsigned char)ptr[0] - 'R'; p.y = (unsigned char)ptr[1] - 'R'; ptr += 2; pt[count].x = p.x*hscale - p.y*shear + view_x; pt[count++].y = p.y*vscale + view_y; } } view_x += dx; } __END__; } CV_IMPL void cvInitFont( CvFont *font, int font_face, double hscale, double vscale, double shear, int thickness, int line_type ) { CV_FUNCNAME( "cvInitFont" ); __BEGIN__; int is_italic = font_face & CV_FONT_ITALIC; if( !font ) CV_ERROR( CV_StsNullPtr, "" ); if( hscale <= 0 || vscale <= 0 || thickness < 0 ) CV_ERROR( CV_StsOutOfRange, "" ); switch( (font_face & 7) ) { case CV_FONT_HERSHEY_SIMPLEX: font->ascii = icvHersheySimplex; break; case CV_FONT_HERSHEY_PLAIN: font->ascii = !is_italic ? icvHersheyPlain : icvHersheyPlainItalic; break; case CV_FONT_HERSHEY_DUPLEX: font->ascii = icvHersheyDuplex; break; case CV_FONT_HERSHEY_COMPLEX: font->ascii = !is_italic ? icvHersheyComplex : icvHersheyComplexItalic; break; case CV_FONT_HERSHEY_TRIPLEX: font->ascii = !is_italic ? icvHersheyTriplex : icvHersheyTriplexItalic; break; case CV_FONT_HERSHEY_COMPLEX_SMALL: font->ascii = !is_italic ? icvHersheyComplexSmall : icvHersheyComplexSmallItalic; break; case CV_FONT_HERSHEY_SCRIPT_SIMPLEX: font->ascii = icvHersheyScriptSimplex; break; case CV_FONT_HERSHEY_SCRIPT_COMPLEX: font->ascii = icvHersheyScriptComplex; break; default: CV_ERROR( CV_StsOutOfRange, "Unknown font type" ); } font->font_face = font_face; font->hscale = (float)hscale; font->vscale = (float)vscale; font->thickness = thickness; font->shear = (float)shear; font->greek = font->cyrillic = 0; font->line_type = line_type; __END__; } CV_IMPL void cvGetTextSize( const char *text, const CvFont *font, CvSize *size, int *_base_line ) { CV_FUNCNAME( "cvGetTextSize" ); __BEGIN__; float view_x = 0; int base_line, cap_line; int i; const char **faces = icvHersheyGlyphs; if( !text || !font || !font->ascii || !size ) CV_ERROR( CV_StsNullPtr, "" ); base_line = (font->ascii[0] & 15); cap_line = (font->ascii[0] >> 4) & 15; if( _base_line ) *_base_line = cvRound(base_line*font->vscale); size->height = cvRound((cap_line + base_line)*font->vscale + font->thickness); for( i = 0; text[i] != '\0'; i++ ) { int c = (uchar)text[i]; const char* ptr; CvPoint p; if( c > 128 || c < ' ' ) c = '?'; ptr = faces[font->ascii[(c-' ')+1]]; p.x = (unsigned char)ptr[0] - 'R'; p.y = (unsigned char)ptr[1] - 'R'; view_x += (p.y - p.x)*font->hscale; } size->width = cvRound(view_x + font->thickness); __END__; } static const CvPoint icvCodeDeltas[8] = { {1, 0}, {1, -1}, {0, -1}, {-1, -1}, {-1, 0}, {-1, 1}, {0, 1}, {1, 1} }; #define CV_ADJUST_EDGE_COUNT( count, seq ) \ ((count) -= ((count) == (seq)->total && !CV_IS_SEQ_CLOSED(seq))) CV_IMPL void cvDrawContours( void* img, CvSeq* contour, CvScalar externalColor, CvScalar holeColor, int maxLevel, int thickness, int line_type, CvPoint offset ) { CvSeq *contour0 = contour, *h_next = 0; CvMemStorage* st = 0; CvSeq* tseq = 0; CvContour* edges = 0; CvSeqWriter writer; CvTreeNodeIterator iterator; CV_FUNCNAME( "cvDrawContours" ); __BEGIN__; int coi = 0; CvMat stub, *mat = (CvMat*)img; double ext_buf[4], hole_buf[4]; CV_CALL( mat = cvGetMat( mat, &stub, &coi )); if( line_type == CV_AA && CV_MAT_DEPTH(mat->type) != CV_8U ) line_type = 8; if( !contour ) EXIT; if( coi != 0 ) CV_ERROR( CV_BadCOI, cvUnsupportedFormat ); if( thickness < -1 || thickness > 255 ) CV_ERROR( CV_StsOutOfRange, "" ); CV_CALL( cvScalarToRawData( &externalColor, ext_buf, mat->type, 0 )); CV_CALL( cvScalarToRawData( &holeColor, hole_buf, mat->type, 0 )); if( maxLevel < 0 ) { h_next = contour->h_next; contour->h_next = 0; maxLevel = -maxLevel+1; } if( thickness < 0 ) { if( contour->storage ) st = cvCreateChildMemStorage( contour->storage ); else st = cvCreateMemStorage( CV_DRAWING_STORAGE_BLOCK ); tseq = cvCreateSeq( 0, sizeof(CvContour), sizeof(CvPoint), st ); edges = (CvContour*)cvCreateSeq( 0, sizeof(CvContour), sizeof(CvPolyEdge), st ); } memset( &writer, 0, sizeof(writer)); cvInitTreeNodeIterator( &iterator, contour, maxLevel ); while( (contour = (CvSeq*)cvNextTreeNode( &iterator )) != 0 ) { CvSeqReader reader; int i, count = contour->total; int elem_type = CV_MAT_TYPE(contour->flags); void* clr = (contour->flags & CV_SEQ_FLAG_HOLE) == 0 ? ext_buf : hole_buf; cvStartReadSeq( contour, &reader, 0 ); if( CV_IS_SEQ_CHAIN_CONTOUR( contour )) { CvPoint pt = ((CvChain*)contour)->origin; CvPoint prev_pt = pt; char prev_code = reader.ptr ? reader.ptr[0] : '\0'; if( thickness < 0 ) { cvClearSeq( tseq ); cvStartAppendToSeq( tseq, &writer ); CV_WRITE_SEQ_ELEM( pt, writer ); } prev_pt.x += offset.x; prev_pt.y += offset.y; for( i = 0; i < count; i++ ) { char code; CV_READ_SEQ_ELEM( code, reader ); assert( (code & ~7) == 0 ); if( code != prev_code ) { prev_code = code; if( thickness >= 0 ) { icvThickLine( mat, prev_pt, pt, clr, thickness, line_type, 2, 0 ); } else { CV_WRITE_SEQ_ELEM( pt, writer ); } prev_pt = pt; } pt.x += icvCodeDeltas[(int)code].x; pt.y += icvCodeDeltas[(int)code].y; } if( thickness >= 0 ) { icvThickLine( mat, prev_pt, ((CvChain*)contour)->origin, clr, thickness, line_type, 2, 0 ); } else { CV_WRITE_SEQ_ELEM( pt, writer ); cvEndWriteSeq( &writer ); CV_CALL( icvCollectPolyEdges( mat, tseq, edges, ext_buf, line_type, 0 )); } } else if( CV_IS_SEQ_POLYLINE( contour )) { if( thickness >= 0 ) { CvPoint pt1, pt2; int shift = 0; count -= !CV_IS_SEQ_CLOSED(contour); if( elem_type == CV_32SC2 ) { CV_READ_SEQ_ELEM( pt1, reader ); pt1.x += offset.x; pt1.y += offset.y; } else { CvPoint2D32f pt1f; CV_READ_SEQ_ELEM( pt1f, reader ); pt1.x = cvRound( (pt1f.x + offset.x) * XY_ONE ); pt1.y = cvRound( (pt1f.y + offset.y) * XY_ONE ); shift = XY_SHIFT; } for( i = 0; i < count; i++ ) { if( elem_type == CV_32SC2 ) { CV_READ_SEQ_ELEM( pt2, reader ); pt2.x += offset.x; pt2.y += offset.y; } else { CvPoint2D32f pt2f; CV_READ_SEQ_ELEM( pt2f, reader ); pt2.x = cvRound( pt2f.x * XY_ONE ); pt2.y = cvRound( pt2f.y * XY_ONE ); } icvThickLine( mat, pt1, pt2, clr, thickness, line_type, 2, shift ); pt1 = pt2; } } else { CV_CALL( icvCollectPolyEdges( mat, contour, edges, ext_buf, line_type, 0, offset )); } } } if( thickness < 0 ) { CV_CALL( icvFillEdgeCollection( mat, edges, ext_buf )); } __END__; if( h_next && contour0 ) contour0->h_next = h_next; cvReleaseMemStorage( &st ); } /* End of file. */