27707d841e
* Fix misc. source comment and doxygen typos in ./toonz/sources/toonzlib Found via `codespell -q 3 -S *.ts,./thirdparty -L dum,inbetween,sinc,uint ./toonz/sources/toonzlib`
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
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// CallCircle.cpp: implementation of the CCallCircle class.
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//
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//////////////////////////////////////////////////////////////////////
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#include <math.h>
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#include <stdlib.h>
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#include <search.h>
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//#include "myetc.h"
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#include "CallCircle.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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static int callcircle_xydwCompare(const void *a, const void *b) {
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SXYDW *aa = (SXYDW *)a;
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SXYDW *bb = (SXYDW *)b;
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if (aa->w < bb->w) return -1;
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if (aa->w > bb->w) return 1;
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return 0;
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}
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CCallCircle::CCallCircle(const double r) : m_r(r), m_nb(0) {
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int rr = (int)r + 1;
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rr *= 2;
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int dd = rr * 2 + 1;
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int dd2 = dd * dd;
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if (dd2 == 0) {
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null();
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return;
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}
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m_c.reset(new SXYDW[dd2]);
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if (!m_c) throw SMemAllocError("in callCircle");
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for (int y = -rr; y <= rr; y++)
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for (int x = -rr; x <= rr; x++) {
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double d = sqrt((double)(x * x + y * y));
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if (d <= r && m_nb < dd2) {
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m_c[m_nb].x = x;
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m_c[m_nb].y = y;
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m_c[m_nb].w = d;
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m_nb++;
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}
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}
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qsort(m_c.get(), m_nb, sizeof(SXYDW), callcircle_xydwCompare);
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}
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void CCallCircle::null() {
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m_nb = 0;
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m_r = 0.0;
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m_c.reset();
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}
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CCallCircle::~CCallCircle() { null(); }
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void CCallCircle::print() {
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/*smsg_info(" --- CCallCircle ---");
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smsg_info(" m_nb=%d", m_nb);
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smsg_info(" m_r=%f", m_r);
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for( int i=0; i<m_nb; i++ )
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smsg_info(" %d. = (%d,%d,%f)", i, m_c[i].x,m_c[i].y,m_c[i].w);
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smsg_info(" --- ----------- ---\n");
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*/
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}
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void CCallCircle::draw(UCHAR *drawB, const int lX, const int lY, const int xx,
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const int yy, const double r) {
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double aa = 2.0 * r / 3.0; // Size of antialiasing
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for (int i = 0; i < m_nb && m_c[i].w <= r; i++) {
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double w = m_c[i].w;
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int x = xx + m_c[i].x;
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int y = yy + m_c[i].y;
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if (x >= 0 && y >= 0 && x < lX && y < lY) {
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UCHAR *pDB = drawB + y * lX + x;
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if (w <= aa) {
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*pDB = (UCHAR)255;
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} else {
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double q = 255.0 * (r - w) / (r - aa);
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q = D_CUT_0_255(q);
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UCHAR ucq = UC_ROUND(q);
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(*pDB) = (*pDB) < ucq ? ucq : (*pDB);
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}
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}
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}
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}
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