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GLScope: IQ linear and IQ polar displays

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f4exb
2015-11-06 06:20:52 +01:00
parent 2726625e97
commit f8e6cc6cce
4 changed files with 79 additions and 67 deletions
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sdrbase/gui/glscope.cpp
+64 -25
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@@ -670,32 +670,71 @@ void GLScope::paintGL()
// paint trace #2
if(m_displayTrace->size() > 0) {
glPushMatrix();
glTranslatef(m_glScopeRect2.x(), m_glScopeRect2.y() + m_glScopeRect2.height() / 2.0, 0);
glScalef(m_glScopeRect2.width() * (float)m_timeBase / (float)(m_displayTrace->size() - 1), -(m_glScopeRect2.height() / 2) * m_amp2, 1);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glEnable(GL_LINE_SMOOTH);
glLineWidth(1.0f);
glColor4f(1, 1, 0.25f, m_displayTraceIntensity / 100.0);
int start = (m_timeOfsProMill/1000.0) * m_displayTrace->size();
int end = std::min(start + m_displayTrace->size()/m_timeBase, m_displayTrace->size());
if(end - start < 2)
start--;
float posLimit = 1.0 / m_amp2;
float negLimit = -1.0 / m_amp2;
glBegin(GL_LINE_STRIP);
for(int i = start; i < end; i++) {
float v = (*m_displayTrace)[i].imag();
if(v > posLimit)
v = posLimit;
else if(v < negLimit)
v = negLimit;
glVertex2f(i - start, v);
if (m_mode == ModeIQPolar)
{
glPushMatrix();
glTranslatef(m_glScopeRect2.x() + m_glScopeRect2.width() / 2.0, m_glScopeRect2.y() + m_glScopeRect2.height() / 2.0, 0);
glScalef(m_glScopeRect2.width() / 2, -(m_glScopeRect2.height() / 2), 1);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glLineWidth(1.0f);
glColor4f(1, 1, 0.25f, m_displayTraceIntensity / 100.0);
int start = (m_timeOfsProMill/1000.0) * m_displayTrace->size();
int end = std::min(start + m_displayTrace->size()/m_timeBase, m_displayTrace->size());
if(end - start < 2)
start--;
glBegin(GL_LINE_STRIP);
for(int i = start; i < end; i++)
{
float x = (*m_displayTrace)[i].real() * m_amp1;
float y = (*m_displayTrace)[i].imag() * m_amp2;
if(x > 1.0f)
x = 1.0f;
else if(x < -1.0f)
x = -1.0f;
if(y > 1.0f)
y = 1.0f;
else if(y < -1.0f)
y = -1.0f;
glVertex2f(x, y);
}
glEnd();
glPopMatrix();
}
else
{
glPushMatrix();
glTranslatef(m_glScopeRect2.x(), m_glScopeRect2.y() + m_glScopeRect2.height() / 2.0, 0);
glScalef(m_glScopeRect2.width() * (float)m_timeBase / (float)(m_displayTrace->size() - 1), -(m_glScopeRect2.height() / 2) * m_amp2, 1);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glEnable(GL_LINE_SMOOTH);
glLineWidth(1.0f);
glColor4f(1, 1, 0.25f, m_displayTraceIntensity / 100.0);
int start = (m_timeOfsProMill/1000.0) * m_displayTrace->size();
int end = std::min(start + m_displayTrace->size()/m_timeBase, m_displayTrace->size());
if(end - start < 2)
start--;
float posLimit = 1.0 / m_amp2;
float negLimit = -1.0 / m_amp2;
glBegin(GL_LINE_STRIP);
for(int i = start; i < end; i++) {
float v = (*m_displayTrace)[i].imag();
if(v > posLimit)
v = posLimit;
else if(v < negLimit)
v = negLimit;
glVertex2f(i - start, v);
}
glEnd();
//glDisable(GL_LINE_SMOOTH);
glPopMatrix();
}
glEnd();
//glDisable(GL_LINE_SMOOTH);
glPopMatrix();
}
} // Both displays or secondary display only