mirror of
https://github.com/f4exb/sdrangel.git
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125 lines
3.7 KiB
C++
125 lines
3.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "scopevisxy.h"
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#include "gui/tvscreen.h"
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#include <unistd.h>
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ScopeVisXY::ScopeVisXY(TVScreen *tvScreen) :
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m_tvScreen(tvScreen),
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m_scale(1.0),
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m_cols(0),
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m_rows(0),
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m_pixelsPerFrame(480),
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m_pixelCount(0),
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m_alphaTrace(128),
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m_alphaReset(128),
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m_plotRGB(qRgb(0, 255, 0)),
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m_gridRGB(qRgb(255, 255 ,255))
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{
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setObjectName("ScopeVisXY");
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setPixelsPerFrame(m_pixelsPerFrame);
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m_tvScreen->setAlphaBlend(true);
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}
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ScopeVisXY::~ScopeVisXY()
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{
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}
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void ScopeVisXY::setPixelsPerFrame(int pixelsPerFrame)
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{
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m_pixelsPerFrame = pixelsPerFrame;
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m_pixelCount = 0;
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m_tvScreen->setAlphaReset();
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}
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void ScopeVisXY::feed(const SampleVector::const_iterator& cbegin, const SampleVector::const_iterator& end,
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bool positiveOnly __attribute__((unused)))
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{
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SampleVector::const_iterator begin(cbegin);
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while (begin < end)
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{
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float x = m_scale * (begin->m_real/SDR_RX_SCALEF);
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float y = m_scale * (begin->m_imag/SDR_RX_SCALEF);
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int row = m_rows * ((1.0 - y) / 2.0);
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int col = m_cols * ((1.0 + x) / 2.0);
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row = row < 0 ? 0 : row >= m_rows ? m_rows-1 : row;
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col = col < 0 ? 0 : col >= m_cols ? m_cols-1 : col;
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m_tvScreen->selectRow(row);
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m_tvScreen->setDataColor(col, qRed(m_plotRGB), qGreen(m_plotRGB), qBlue(m_plotRGB), m_alphaTrace);
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++begin;
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m_pixelCount++;
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if (m_pixelCount == m_pixelsPerFrame)
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{
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drawGraticule();
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m_tvScreen->renderImage(0);
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usleep(5000);
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m_tvScreen->getSize(m_cols, m_rows);
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m_tvScreen->resetImage(m_alphaReset);
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m_pixelCount = 0;
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}
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}
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}
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void ScopeVisXY::start()
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{
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}
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void ScopeVisXY::stop()
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{
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}
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bool ScopeVisXY::handleMessage(const Message& message __attribute__((unused)))
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{
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return false;
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}
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void ScopeVisXY::addGraticulePoint(const std::complex<float>& z) {
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m_graticule.push_back(z);
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}
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void ScopeVisXY::clearGraticule() {
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m_graticule.clear();
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}
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void ScopeVisXY::drawGraticule()
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{
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std::vector<std::complex<float> >::const_iterator grIt = m_graticule.begin();
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for (; grIt != m_graticule.end(); ++grIt)
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{
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int y = m_rows * ((1.0 - grIt->imag()) / 2.0);
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int x = m_cols * ((1.0 + grIt->real()) / 2.0);
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for (int d = -4; d <= 4; ++d)
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{
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m_tvScreen->selectRow(y + d);
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m_tvScreen->setDataColor(x, qRed(m_gridRGB), qGreen(m_gridRGB), qBlue(m_gridRGB));
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m_tvScreen->selectRow(y);
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m_tvScreen->setDataColor(x + d, qRed(m_gridRGB), qGreen(m_gridRGB), qBlue(m_gridRGB));
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}
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}
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}
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