class Input_Info(QWidget):
"""
Create widget for displaying infos about filter specs and filter design method
"""
sig_rx = pyqtSignal(object) # incoming signals from input_tab_widgets
sig_tx = pyqtSignal(object)
from pyfda.libs.pyfda_qt_lib import emit
def __init__(self, parent=None):
super(Input_Info, self).__init__(parent)
self.tab_label = 'Info'
self.tool_tip = (
"<span>Display the achieved filter specifications"
" and more info about the filter design algorithm.</span>")
self._construct_UI()
self.load_dict()
def process_sig_rx(self, dict_sig=None):
"""
Process signals coming from sig_rx
"""
# logger.debug("Processing {0}: {1}".format(type(dict_sig).__name__, dict_sig))
if 'data_changed' in dict_sig or 'view_changed' in dict_sig\
or 'specs_changed' in dict_sig:
self.load_dict()
def _construct_UI(self):
"""
Intitialize the widget, consisting of:
- Checkboxes for selecting the info to be displayed
- A large text window for displaying infos about the filter design
algorithm
"""
bfont = QFont()
bfont.setBold(True)
# ============== UI Layout =====================================
# widget / subwindow for filter infos
# self.butFiltPerf = QToolButton("H(f)", self)
self.butFiltPerf = QPushButton(self)
self.butFiltPerf.setText("H(f)")
self.butFiltPerf.setCheckable(True)
self.butFiltPerf.setChecked(True)
self.butFiltPerf.setToolTip("Display frequency response at test frequencies.")
self.butDebug = QPushButton(self)
self.butDebug.setText("Debug")
self.butDebug.setCheckable(True)
self.butDebug.setChecked(False)
self.butDebug.setToolTip("Show debugging options.")
self.butAbout = QPushButton("About", self) # pop-up "About" window
self.butSettings = QPushButton("Settings", self) #
self.butSettings.setCheckable(True)
self.butSettings.setChecked(False)
self.butSettings.setToolTip("Display and set some settings")
layHControls1 = QHBoxLayout()
layHControls1.addWidget(self.butFiltPerf)
layHControls1.addWidget(self.butAbout)
layHControls1.addWidget(self.butSettings)
layHControls1.addWidget(self.butDebug)
self.butDocstring = QPushButton("Doc$", self)
self.butDocstring.setCheckable(True)
self.butDocstring.setChecked(False)
self.butDocstring.setToolTip("Display docstring from python filter method.")
self.butRichText = QPushButton("RTF", self)
self.butRichText.setCheckable(HAS_DOCUTILS)
self.butRichText.setChecked(HAS_DOCUTILS)
self.butRichText.setEnabled(HAS_DOCUTILS)
self.butRichText.setToolTip("Render documentation in Rich Text Format.")
self.butFiltDict = QPushButton("FiltDict", self)
self.butFiltDict.setToolTip("Show filter dictionary for debugging.")
self.butFiltDict.setCheckable(True)
self.butFiltDict.setChecked(False)
self.butFiltTree = QPushButton("FiltTree", self)
self.butFiltTree.setToolTip("Show filter tree for debugging.")
self.butFiltTree.setCheckable(True)
self.butFiltTree.setChecked(False)
layHControls2 = QHBoxLayout()
layHControls2.addWidget(self.butDocstring)
# layHControls2.addStretch(1)
layHControls2.addWidget(self.butRichText)
# layHControls2.addStretch(1)
layHControls2.addWidget(self.butFiltDict)
# layHControls2.addStretch(1)
layHControls2.addWidget(self.butFiltTree)
self.frmControls2 = QFrame(self)
self.frmControls2.setLayout(layHControls2)
self.frmControls2.setVisible(self.butDebug.isChecked())
self.frmControls2.setContentsMargins(0, 0, 0, 0)
lbl_settings_NFFT = QLabel(to_html("N_FFT =", frmt='bi'), self)
self.led_settings_NFFT = QLineEdit(self)
self.led_settings_NFFT.setText(str(params['N_FFT']))
self.led_settings_NFFT.setToolTip("<span>Number of FFT points for frequency "
"domain widgets.</span>")
layGSettings = QGridLayout()
layGSettings.addWidget(lbl_settings_NFFT, 1, 0)
layGSettings.addWidget(self.led_settings_NFFT, 1, 1)
self.frmSettings = QFrame(self)
self.frmSettings.setLayout(layGSettings)
self.frmSettings.setVisible(self.butSettings.isChecked())
self.frmSettings.setContentsMargins(0, 0, 0, 0)
layVControls = QVBoxLayout()
layVControls.addLayout(layHControls1)
layVControls.addWidget(self.frmControls2)
layVControls.addWidget(self.frmSettings)
self.frmMain = QFrame(self)
self.frmMain.setLayout(layVControls)
self.tblFiltPerf = QTableWidget(self)
self.tblFiltPerf.setAlternatingRowColors(True)
# self.tblFiltPerf.verticalHeader().setVisible(False)
self.tblFiltPerf.horizontalHeader().setHighlightSections(False)
self.tblFiltPerf.horizontalHeader().setFont(bfont)
self.tblFiltPerf.verticalHeader().setHighlightSections(False)
self.tblFiltPerf.verticalHeader().setFont(bfont)
self.txtFiltInfoBox = QTextBrowser(self)
self.txtFiltDict = QTextBrowser(self)
self.txtFiltTree = QTextBrowser(self)
layVMain = QVBoxLayout()
layVMain.addWidget(self.frmMain)
# layVMain.addLayout(self.layHControls)
splitter = QSplitter(self)
splitter.setOrientation(Qt.Vertical)
splitter.addWidget(self.tblFiltPerf)
splitter.addWidget(self.txtFiltInfoBox)
splitter.addWidget(self.txtFiltDict)
splitter.addWidget(self.txtFiltTree)
# setSizes uses absolute pixel values, but can be "misused" by specifying values
# that are way too large: in this case, the space is distributed according
# to the _ratio_ of the values:
splitter.setSizes([3000, 10000, 1000, 1000])
layVMain.addWidget(splitter)
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
# ----------------------------------------------------------------------
# GLOBAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.sig_rx.connect(self.process_sig_rx)
# ----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.butFiltPerf.clicked.connect(self._show_filt_perf)
self.butAbout.clicked.connect(self._about_window)
self.butSettings.clicked.connect(self._show_settings)
self.led_settings_NFFT.editingFinished.connect(self._update_settings_nfft)
self.butDebug.clicked.connect(self._show_debug)
self.butFiltDict.clicked.connect(self._show_filt_dict)
self.butFiltTree.clicked.connect(self._show_filt_tree)
self.butDocstring.clicked.connect(self._show_doc)
self.butRichText.clicked.connect(self._show_doc)
def _about_window(self):
self.about_widget = AboutWindow(self) # important: Handle must be class attribute
# self.opt_widget.show() # modeless dialog, i.e. non-blocking
self.about_widget.exec_() # modal dialog (blocking)
# ------------------------------------------------------------------------------
def _show_debug(self):
"""
Show / hide debug options depending on the state of the debug button
"""
self.frmControls2.setVisible(self.butDebug.isChecked())
# ------------------------------------------------------------------------------
def _show_settings(self):
"""
Show / hide settings options depending on the state of the settings button
"""
self.frmSettings.setVisible(self.butSettings.isChecked())
def _update_settings_nfft(self):
""" Update value for self.par1 from QLineEdit Widget"""
params['N_FFT'] = safe_eval(self.led_settings_NFFT.text(), params['N_FFT'],
sign='pos', return_type='int')
self.led_settings_NFFT.setText(str(params['N_FFT']))
self.emit({'data_changed': 'n_fft'})
# ------------------------------------------------------------------------------
def load_dict(self):
"""
update docs and filter performance
"""
self._show_doc()
self._show_filt_perf()
self._show_filt_dict()
self._show_filt_tree()
# ------------------------------------------------------------------------------
def _show_doc(self):
"""
Display info from filter design file and docstring
"""
if hasattr(ff.fil_inst, 'info'):
if self.butRichText.isChecked():
self.txtFiltInfoBox.setText(publish_string(
self._clean_doc(ff.fil_inst.info), writer_name='html',
settings_overrides={'output_encoding': 'unicode'}))
else:
self.txtFiltInfoBox.setText(textwrap.dedent(ff.fil_inst.info))
else:
self.txtFiltInfoBox.setText("")
if self.butDocstring.isChecked() and hasattr(ff.fil_inst, 'info_doc'):
if self.butRichText.isChecked():
self.txtFiltInfoBox.append(
'<hr /><b>Python module docstring:</b>\n')
for doc in ff.fil_inst.info_doc:
self.txtFiltInfoBox.append(publish_string(
self._clean_doc(doc), writer_name='html',
settings_overrides={'output_encoding': 'unicode'}))
else:
self.txtFiltInfoBox.append('\nPython module docstring:\n')
for doc in ff.fil_inst.info_doc:
self.txtFiltInfoBox.append(self._clean_doc(doc))
self.txtFiltInfoBox.moveCursor(QTextCursor.Start)
def _clean_doc(self, doc):
"""
Remove uniform number of leading blanks from docstrings for subsequent
processing of rich text. The first line is treated differently, _all_
leading blanks are removed (if any). This allows for different formats
of docstrings.
"""
lines = doc.splitlines()
result = lines[0].lstrip() + "\n" + textwrap.dedent("\n".join(lines[1:]))
return result
# ------------------------------------------------------------------------------
def _show_filt_perf(self):
"""
Print filter properties in a table at frequencies of interest. When
specs are violated, colour the table entry in red.
"""
antiC = False
def _find_min_max(self, f_start, f_stop, unit='dB'):
"""
Find minimum and maximum magnitude and the corresponding frequencies
for the filter defined in the filter dict in a given frequency band
[f_start, f_stop].
"""
w = np.linspace(f_start, f_stop, params['N_FFT'])*2*np.pi
[w, H] = sig.freqz(bb, aa, worN=w)
# add antiCausals if we have them
if (antiC):
#
# Evaluate transfer function of anticausal half on the same freq grid.
#
wa, ha = sig.freqz(bbA, aaA, worN=w)
ha = ha.conjugate()
#
# Total transfer function is the product
#
H = H*ha
f = w / (2.0 * pi) # frequency normalized to f_S
H_abs = abs(H)
H_max = max(H_abs)
H_min = min(H_abs)
F_max = f[np.argmax(H_abs)] # find the frequency where H_abs
F_min = f[np.argmin(H_abs)] # becomes max resp. min
if unit == 'dB':
H_max = 20*log10(H_max)
H_min = 20*log10(H_min)
return F_min, H_min, F_max, H_max
# ------------------------------------------------------------------
self.tblFiltPerf.setVisible(self.butFiltPerf.isChecked())
if self.butFiltPerf.isChecked():
bb = fb.fil[0]['ba'][0]
aa = fb.fil[0]['ba'][1]
# 'rpk' means nonCausal filter
if 'rpk' in fb.fil[0]:
antiC = True
bbA = fb.fil[0]['baA'][0]
aaA = fb.fil[0]['baA'][1]
bbA = bbA.conjugate()
aaA = aaA.conjugate()
f_S = fb.fil[0]['f_S']
f_lbls = []
f_vals = []
a_lbls = []
a_targs = []
a_targs_dB = []
a_test = []
ft = fb.fil[0]['ft'] # get filter type ('IIR', 'FIR')
unit = fb.fil[0]['amp_specs_unit']
unit = 'dB' # fix this for the moment
# construct pairs of corner frequency and corresponding amplitude
# labels in ascending frequency for each response type
if fb.fil[0]['rt'] in {'LP', 'HP', 'BP', 'BS', 'HIL'}:
if fb.fil[0]['rt'] == 'LP':
f_lbls = ['F_PB', 'F_SB']
a_lbls = ['A_PB', 'A_SB']
elif fb.fil[0]['rt'] == 'HP':
f_lbls = ['F_SB', 'F_PB']
a_lbls = ['A_SB', 'A_PB']
elif fb.fil[0]['rt'] == 'BP':
f_lbls = ['F_SB', 'F_PB', 'F_PB2', 'F_SB2']
a_lbls = ['A_SB', 'A_PB', 'A_PB', 'A_SB2']
elif fb.fil[0]['rt'] == 'BS':
f_lbls = ['F_PB', 'F_SB', 'F_SB2', 'F_PB2']
a_lbls = ['A_PB', 'A_SB', 'A_SB', 'A_PB2']
elif fb.fil[0]['rt'] == 'HIL':
f_lbls = ['F_PB', 'F_PB2']
a_lbls = ['A_PB', 'A_PB']
# Try to get lists of frequency / amplitude specs from the filter dict
# that correspond to the f_lbls / a_lbls pairs defined above
# When one of the labels doesn't exist in the filter dict, delete
# all corresponding amplitude and frequency entries.
err = [False] * len(f_lbls) # initialize error list
f_vals = []
a_targs = []
for i in range(len(f_lbls)):
try:
f = fb.fil[0][f_lbls[i]]
f_vals.append(f)
except KeyError as e:
f_vals.append('')
err[i] = True
logger.debug(e)
try:
a = fb.fil[0][a_lbls[i]]
a_dB = lin2unit(fb.fil[0][a_lbls[i]], ft, a_lbls[i], unit)
a_targs.append(a)
a_targs_dB.append(a_dB)
except KeyError as e:
a_targs.append('')
a_targs_dB.append('')
err[i] = True
logger.debug(e)
for i in range(len(f_lbls)):
if err[i]:
del f_lbls[i]
del f_vals[i]
del a_lbls[i]
del a_targs[i]
del a_targs_dB[i]
f_vals = np.asarray(f_vals) # convert to numpy array
logger.debug("F_test_labels = %s" % f_lbls)
# Calculate frequency response at test frequencies
[w_test, a_test] = sig.freqz(bb, aa, 2.0 * pi * f_vals.astype(float))
# add antiCausals if we have them
if (antiC):
wa, ha = sig.freqz(bbA, aaA, 2.0 * pi * f_vals.astype(float))
ha = ha.conjugate()
a_test = a_test*ha
(F_min, H_min, F_max, H_max) = _find_min_max(self, 0, 1, unit='V')
# append frequencies and values for min. and max. filter reponse to
# test vector
f_lbls += ['Min.', 'Max.']
# QTableView does not support direct formatting, use QLabel
f_vals = np.append(f_vals, [F_min, F_max])
a_targs = np.append(a_targs, [np.nan, np.nan])
a_targs_dB = np.append(a_targs_dB, [np.nan, np.nan])
a_test = np.append(a_test, [H_min, H_max])
# calculate response of test frequencies in dB
a_test_dB = -20*log10(abs(a_test))
# get filter type ('IIR', 'FIR') for dB <-> lin conversion
ft = fb.fil[0]['ft']
# unit = fb.fil[0]['amp_specs_unit']
unit = 'dB' # make this fixed for the moment
# build a list with the corresponding target specs:
a_targs_pass = []
eps = 1e-3
for i in range(len(f_lbls)):
if 'PB' in f_lbls[i]:
a_targs_pass.append((a_test_dB[i] - a_targs_dB[i]) < eps)
a_test[i] = 1 - abs(a_test[i])
elif 'SB' in f_lbls[i]:
a_targs_pass.append(a_test_dB[i] >= a_targs_dB[i])
else:
a_targs_pass.append(True)
self.targs_spec_passed = np.all(a_targs_pass)
logger.debug(
"H_targ = {0}\n"
"H_test = {1}\n"
"H_test_dB = {2}\n"
"F_test = {3}\n"
"H_targ_pass = {4}\n"
"passed: {5}\n".format(a_targs, a_test, a_test_dB, f_vals,
a_targs_pass, self.targs_spec_passed))
self.tblFiltPerf.setRowCount(len(a_test)) # number of table rows
self.tblFiltPerf.setColumnCount(5) # number of table columns
self.tblFiltPerf.setHorizontalHeaderLabels([
'f/{0:s}'.format(fb.fil[0]['freq_specs_unit']), 'Spec\n(dB)',
'|H(f)|\n(dB)', 'Spec', '|H(f)|'])
self.tblFiltPerf.setVerticalHeaderLabels(f_lbls)
for row in range(len(a_test)):
self.tblFiltPerf.setItem(
row, 0, QTableWidgetItem(str('{0:.4g}'.format(f_vals[row]*f_S))))
self.tblFiltPerf.setItem(
row, 1, QTableWidgetItem(str('%2.3g'%(-a_targs_dB[row]))))
self.tblFiltPerf.setItem(
row, 2, QTableWidgetItem(str('%2.3f'%(-a_test_dB[row]))))
if a_targs[row] < 0.01:
self.tblFiltPerf.setItem(
row, 3, QTableWidgetItem(str('%.3e'%(a_targs[row]))))
else:
self.tblFiltPerf.setItem(
row, 3, QTableWidgetItem(str('%2.4f'%(a_targs[row]))))
if a_test[row] < 0.01:
self.tblFiltPerf.setItem(
row, 4, QTableWidgetItem(str('%.3e'%(abs(a_test[row])))))
else:
self.tblFiltPerf.setItem(
row, 4, QTableWidgetItem(str('%.4f'%(abs(a_test[row])))))
if not a_targs_pass[row]:
self.tblFiltPerf.item(row, 1).setBackground(QtGui.QColor('red'))
self.tblFiltPerf.item(row, 3).setBackground(QtGui.QColor('red'))
self.tblFiltPerf.resizeColumnsToContents()
self.tblFiltPerf.resizeRowsToContents()
# ------------------------------------------------------------------------------
def _show_filt_dict(self):
"""
Print filter dict for debugging
"""
self.txtFiltDict.setVisible(self.butFiltDict.isChecked())
fb_sorted = [str(key) + ' : ' + str(fb.fil[0][key])
for key in sorted(fb.fil[0].keys())]
dictstr = pprint.pformat(fb_sorted)
# dictstr = pprint.pformat(fb.fil[0])
self.txtFiltDict.setText(dictstr)
# ------------------------------------------------------------------------------
def _show_filt_tree(self):
"""
Print filter tree for debugging
"""
self.txtFiltTree.setVisible(self.butFiltTree.isChecked())
ftree_sorted = ['<b>' + str(key) + ' : ' + '</b>' + str(fb.fil_tree[key])
for key in sorted(fb.fil_tree.keys())]
dictstr = pprint.pformat(ftree_sorted, indent=4)
# dictstr = pprint.pformat(fb.fil[0])
self.txtFiltTree.setText(dictstr)
class PlotImpz_UI(QWidget):
"""
Create the UI for the PlotImpz class
"""
# incoming: not implemented at the moment, update_N is triggered directly
# by plot_impz
# sig_rx = pyqtSignal(object)
# outgoing: from various UI elements to PlotImpz ('ui_changed':'xxx')
sig_tx = pyqtSignal(object)
# outgoing: to fft related widgets (FFT window widget, qfft_win_select)
sig_tx_fft = pyqtSignal(object)
from pyfda.libs.pyfda_qt_lib import emit
# ------------------------------------------------------------------------------
def process_sig_rx(self, dict_sig=None):
"""
Process signals coming from
- FFT window widget
- qfft_win_select
"""
# logger.debug("PROCESS_SIG_RX - vis: {0}\n{1}"
# .format(self.isVisible(), pprint_log(dict_sig)))
if 'id' in dict_sig and dict_sig['id'] == id(self):
logger.warning("Stopped infinite loop:\n{0}".format(
pprint_log(dict_sig)))
return
# --- signals coming from the FFT window widget or the FFT window selector
if dict_sig['class'] in {'Plot_FFT_win', 'QFFTWinSelector'}:
if 'closeEvent' in dict_sig: # hide FFT window widget and return
self.hide_fft_wdg()
return
else:
# check for value 'fft_win*':
if 'view_changed' in dict_sig and 'fft_win' in dict_sig[
'view_changed']:
# local connection to FFT window widget and qfft_win_select
self.emit(dict_sig, sig_name='sig_tx_fft')
# global connection to e.g. plot_impz
self.emit(dict_sig)
# ------------------------------------------------------------------------------
def __init__(self):
super().__init__()
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
# initial settings
self.N_start = 0
self.N_user = 0
self.N = 0
self.N_frame_user = 0
self.N_frame = 0
# time
self.plt_time_resp = "stem"
self.plt_time_stim = "line"
self.plt_time_stmq = "none"
self.plt_time_spgr = "none"
self.bottom_t = -80 # initial value for log. scale (time)
self.time_nfft_spgr = 256 # number of fft points per spectrogram segment
self.time_ovlp_spgr = 128 # number of overlap points between spectrogram segments
self.mode_spgr_time = "psd"
# frequency
self.cmb_freq_display_item = "mag"
self.plt_freq_resp = "line"
self.plt_freq_stim = "none"
self.plt_freq_stmq = "none"
self.bottom_f = -120 # initial value for log. scale
self.param = None
self.f_scale = fb.fil[0]['f_S']
self.t_scale = fb.fil[0]['T_S']
# list of windows that are available for FFT analysis
win_names_list = [
"Boxcar", "Rectangular", "Barthann", "Bartlett", "Blackman",
"Blackmanharris", "Bohman", "Cosine", "Dolph-Chebyshev", "Flattop",
"General Gaussian", "Gauss", "Hamming", "Hann", "Kaiser",
"Nuttall", "Parzen", "Slepian", "Triangular", "Tukey"
]
self.cur_win_name = "Rectangular" # set initial window type
# initialize windows dict with the list above
self.win_dict = get_windows_dict(win_names_list=win_names_list,
cur_win_name=self.cur_win_name)
# instantiate FFT window with default windows dict
self.fft_widget = Plot_FFT_win(self,
self.win_dict,
sym=False,
title="pyFDA Spectral Window Viewer")
# hide window initially, this is modeless i.e. a non-blocking popup window
self.fft_widget.hide()
# data / icon / tooltipp (none) for plotting styles
self.plot_styles_list = [
("Plot style"), ("none", QIcon(":/plot_style-none"), "off"),
("dots*", QIcon(":/plot_style-mkr"), "markers only"),
("line", QIcon(":/plot_style-line"), "line"),
("line*", QIcon(":/plot_style-line-mkr"), "line + markers"),
("stem", QIcon(":/plot_style-stem"), "stems"),
("stem*", QIcon(":/plot_style-stem-mkr"), "stems + markers"),
("steps", QIcon(":/plot_style-steps"), "steps"),
("steps*", QIcon(":/plot_style-steps-mkr"), "steps + markers")
]
self.cmb_time_spgr_items = [
"<span>Show Spectrogram for selected signal.</span>",
("none", "None", ""), ("xn", "x[n]", "input"),
("xqn", "x_q[n]", "quantized input"), ("yn", "y[n]", "output")
]
self.cmb_mode_spgr_time_items = [
"<span>Spectrogram display mode.</span>",
("psd", "PSD",
"<span>Power Spectral Density, either per bin or referred to "
"<i>f<sub>S</sub></i></span>"),
("magnitude", "Mag.", "Signal magnitude"),
("angle", "Angle", "Phase, wrapped to ± π"),
("phase", "Phase", "Phase (unwrapped)")
]
# self.N
self.cmb_freq_display_items = [
"<span>Select how to display the spectrum.</span>",
("mag", "Magnitude", "<span>Spectral magnitude</span>"),
("mag_phi", "Mag. / Phase", "<span>Magnitude and phase.</span>"),
("re_im", "Re. / Imag.",
"<span>Real and imaginary part of spectrum.</span>")
]
self._construct_UI()
# self._enable_stim_widgets()
self.update_N(emit=False) # also updates window function and win_dict
# self._update_noi()
def _construct_UI(self):
# ----------- ---------------------------------------------------
# Run control widgets
# ---------------------------------------------------------------
# self.but_auto_run = QPushButtonRT(text=to_html("Auto", frmt="b"), margin=0)
self.but_auto_run = QPushButton(" Auto", self)
self.but_auto_run.setObjectName("but_auto_run")
self.but_auto_run.setToolTip(
"<span>Update response automatically when "
"parameters have been changed.</span>")
# self.but_auto_run.setMaximumWidth(qtext_width(text=" Auto "))
self.but_auto_run.setCheckable(True)
self.but_auto_run.setChecked(True)
but_height = self.but_auto_run.sizeHint().height()
self.but_run = QPushButton(self)
self.but_run.setIcon(QIcon(":/play.svg"))
self.but_run.setIconSize(QSize(but_height, but_height))
self.but_run.setFixedSize(QSize(2 * but_height, but_height))
self.but_run.setToolTip("Run simulation")
self.but_run.setEnabled(True)
self.cmb_sim_select = QComboBox(self)
self.cmb_sim_select.addItems(["Float", "Fixpoint"])
qset_cmb_box(self.cmb_sim_select, "Float")
self.cmb_sim_select.setToolTip("<span>Simulate floating-point or "
"fixpoint response.</span>")
self.lbl_N_points = QLabel(to_html("N", frmt='bi') + " =", self)
self.led_N_points = QLineEdit(self)
self.led_N_points.setText(str(self.N))
self.led_N_points.setToolTip(
"<span>Last data point. "
"<i>N</i> = 0 tries to choose for you.</span>")
self.led_N_points.setMaximumWidth(qtext_width(N_x=8))
self.lbl_N_start = QLabel(to_html("N_0", frmt='bi') + " =", self)
self.led_N_start = QLineEdit(self)
self.led_N_start.setText(str(self.N_start))
self.led_N_start.setToolTip("<span>First point to plot.</span>")
self.led_N_start.setMaximumWidth(qtext_width(N_x=8))
self.lbl_N_frame = QLabel(to_html("ΔN", frmt='bi') + " =", self)
self.led_N_frame = QLineEdit(self)
self.led_N_frame.setText(str(self.N_frame))
self.led_N_frame.setToolTip(
"<span>Frame length; longer frames calculate faster but calculation cannot "
"be stopped so quickly. "
"<i>ΔN</i> = 0 calculates all samples in one frame.</span>")
self.led_N_frame.setMaximumWidth(qtext_width(N_x=8))
self.prg_wdg = QProgressBar(self)
self.prg_wdg.setFixedHeight(but_height)
self.prg_wdg.setFixedWidth(qtext_width(N_x=6))
self.prg_wdg.setMinimum(0)
self.prg_wdg.setValue(0)
self.but_toggle_stim_options = PushButton(" Stimuli ", checked=True)
self.but_toggle_stim_options.setObjectName("but_stim_options")
self.but_toggle_stim_options.setToolTip(
"<span>Show / hide stimulus options.</span>")
self.lbl_stim_cmplx_warn = QLabel(self)
self.lbl_stim_cmplx_warn = QLabel(to_html("Cmplx!", frmt='b'), self)
self.lbl_stim_cmplx_warn.setToolTip(
'<span>Signal is complex valued; '
'single-sided and H<sub>id</sub> spectra may be wrong.</span>')
self.lbl_stim_cmplx_warn.setStyleSheet("background-color : yellow;"
"border : 1px solid grey")
self.but_fft_wdg = QPushButton(self)
self.but_fft_wdg.setIcon(QIcon(":/fft.svg"))
self.but_fft_wdg.setIconSize(QSize(but_height, but_height))
self.but_fft_wdg.setFixedSize(QSize(int(1.5 * but_height), but_height))
self.but_fft_wdg.setToolTip(
'<span>Show / hide FFT widget (select window type '
' and display its properties).</span>')
self.but_fft_wdg.setCheckable(True)
self.but_fft_wdg.setChecked(False)
self.qfft_win_select = QFFTWinSelector(self, self.win_dict)
self.but_fx_scale = PushButton(" FX:Int ")
self.but_fx_scale.setObjectName("but_fx_scale")
self.but_fx_scale.setToolTip(
"<span>Display data with integer (fixpoint) scale.</span>")
self.but_fx_range = PushButton(" FX:Range")
self.but_fx_range.setObjectName("but_fx_limits")
self.but_fx_range.setToolTip(
"<span>Display limits of fixpoint range.</span>")
layH_ctrl_run = QHBoxLayout()
layH_ctrl_run.addWidget(self.but_auto_run)
layH_ctrl_run.addWidget(self.but_run)
layH_ctrl_run.addWidget(self.cmb_sim_select)
layH_ctrl_run.addSpacing(10)
layH_ctrl_run.addWidget(self.lbl_N_start)
layH_ctrl_run.addWidget(self.led_N_start)
layH_ctrl_run.addWidget(self.lbl_N_points)
layH_ctrl_run.addWidget(self.led_N_points)
layH_ctrl_run.addWidget(self.lbl_N_frame)
layH_ctrl_run.addWidget(self.led_N_frame)
layH_ctrl_run.addWidget(self.prg_wdg)
layH_ctrl_run.addSpacing(20)
layH_ctrl_run.addWidget(self.but_toggle_stim_options)
layH_ctrl_run.addSpacing(5)
layH_ctrl_run.addWidget(self.lbl_stim_cmplx_warn)
layH_ctrl_run.addSpacing(20)
layH_ctrl_run.addWidget(self.but_fft_wdg)
layH_ctrl_run.addWidget(self.qfft_win_select)
layH_ctrl_run.addSpacing(20)
layH_ctrl_run.addWidget(self.but_fx_scale)
layH_ctrl_run.addWidget(self.but_fx_range)
layH_ctrl_run.addStretch(10)
# layH_ctrl_run.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_run = QWidget(self)
self.wdg_ctrl_run.setLayout(layH_ctrl_run)
# --- end of run control ----------------------------------------
# ----------- ---------------------------------------------------
# Controls for time domain
# ---------------------------------------------------------------
self.lbl_plt_time_stim = QLabel(to_html("Stim. x", frmt='bi'), self)
self.cmb_plt_time_stim = QComboBox(self)
qcmb_box_populate(self.cmb_plt_time_stim, self.plot_styles_list,
self.plt_time_stim)
self.cmb_plt_time_stim.setToolTip(
"<span>Plot style for stimulus.</span>")
self.lbl_plt_time_stmq = QLabel(
to_html(" Fixp. Stim. x_Q", frmt='bi'), self)
self.cmb_plt_time_stmq = QComboBox(self)
qcmb_box_populate(self.cmb_plt_time_stmq, self.plot_styles_list,
self.plt_time_stmq)
self.cmb_plt_time_stmq.setToolTip(
"<span>Plot style for <em>fixpoint</em> "
"(quantized) stimulus.</span>")
lbl_plt_time_resp = QLabel(to_html(" Resp. y", frmt='bi'),
self)
self.cmb_plt_time_resp = QComboBox(self)
qcmb_box_populate(self.cmb_plt_time_resp, self.plot_styles_list,
self.plt_time_resp)
self.cmb_plt_time_resp.setToolTip(
"<span>Plot style for response.</span>")
self.lbl_win_time = QLabel(to_html(" Win", frmt='bi'), self)
self.chk_win_time = QCheckBox(self)
self.chk_win_time.setObjectName("chk_win_time")
self.chk_win_time.setToolTip(
'<span>Plot FFT windowing function.</span>')
self.chk_win_time.setChecked(False)
line1 = QVLine()
line2 = QVLine(width=5)
self.but_log_time = PushButton(" dB")
self.but_log_time.setObjectName("but_log_time")
self.but_log_time.setToolTip(
"<span>Logarithmic scale for y-axis.</span>")
lbl_plt_time_spgr = QLabel(to_html("Spectrogram", frmt='bi'), self)
self.cmb_plt_time_spgr = QComboBox(self)
qcmb_box_populate(self.cmb_plt_time_spgr, self.cmb_time_spgr_items,
self.plt_time_spgr)
spgr_en = self.plt_time_spgr != "none"
self.cmb_mode_spgr_time = QComboBox(self)
qcmb_box_populate(self.cmb_mode_spgr_time,
self.cmb_mode_spgr_time_items, self.mode_spgr_time)
self.cmb_mode_spgr_time.setVisible(spgr_en)
self.lbl_byfs_spgr_time = QLabel(to_html(" per f_S", frmt='b'),
self)
self.lbl_byfs_spgr_time.setVisible(spgr_en)
self.chk_byfs_spgr_time = QCheckBox(self)
self.chk_byfs_spgr_time.setObjectName("chk_log_spgr")
self.chk_byfs_spgr_time.setToolTip("<span>Display spectral density "
"i.e. scale by f_S</span>")
self.chk_byfs_spgr_time.setChecked(True)
self.chk_byfs_spgr_time.setVisible(spgr_en)
self.but_log_spgr_time = QPushButton("dB")
self.but_log_spgr_time.setMaximumWidth(qtext_width(text=" dB"))
self.but_log_spgr_time.setObjectName("but_log_spgr")
self.but_log_spgr_time.setToolTip(
"<span>Logarithmic scale for spectrogram.</span>")
self.but_log_spgr_time.setCheckable(True)
self.but_log_spgr_time.setChecked(True)
self.but_log_spgr_time.setVisible(spgr_en)
self.lbl_time_nfft_spgr = QLabel(to_html(" N_FFT =", frmt='bi'),
self)
self.lbl_time_nfft_spgr.setVisible(spgr_en)
self.led_time_nfft_spgr = QLineEdit(self)
self.led_time_nfft_spgr.setText(str(self.time_nfft_spgr))
self.led_time_nfft_spgr.setToolTip("<span>Number of FFT points per "
"spectrogram segment.</span>")
self.led_time_nfft_spgr.setVisible(spgr_en)
self.lbl_time_ovlp_spgr = QLabel(to_html(" N_OVLP =", frmt='bi'),
self)
self.lbl_time_ovlp_spgr.setVisible(spgr_en)
self.led_time_ovlp_spgr = QLineEdit(self)
self.led_time_ovlp_spgr.setText(str(self.time_ovlp_spgr))
self.led_time_ovlp_spgr.setToolTip(
"<span>Number of overlap data points "
"between spectrogram segments.</span>")
self.led_time_ovlp_spgr.setVisible(spgr_en)
self.lbl_log_bottom_time = QLabel(to_html("min =", frmt='bi'), self)
self.led_log_bottom_time = QLineEdit(self)
self.led_log_bottom_time.setText(str(self.bottom_t))
self.led_log_bottom_time.setMaximumWidth(qtext_width(N_x=8))
self.led_log_bottom_time.setToolTip(
"<span>Minimum display value for time and spectrogram plots with log. scale."
"</span>")
self.lbl_log_bottom_time.setVisible(
self.but_log_time.isChecked()
or (spgr_en and self.but_log_spgr_time.isChecked()))
self.led_log_bottom_time.setVisible(
self.lbl_log_bottom_time.isVisible())
# self.lbl_colorbar_time = QLabel(to_html(" Col.bar", frmt='b'), self)
# self.lbl_colorbar_time.setVisible(spgr_en)
# self.chk_colorbar_time = QCheckBox(self)
# self.chk_colorbar_time.setObjectName("chk_colorbar_time")
# self.chk_colorbar_time.setToolTip("<span>Enable colorbar</span>")
# self.chk_colorbar_time.setChecked(True)
# self.chk_colorbar_time.setVisible(spgr_en)
layH_ctrl_time = QHBoxLayout()
layH_ctrl_time.addWidget(self.lbl_plt_time_stim)
layH_ctrl_time.addWidget(self.cmb_plt_time_stim)
#
layH_ctrl_time.addWidget(self.lbl_plt_time_stmq)
layH_ctrl_time.addWidget(self.cmb_plt_time_stmq)
#
layH_ctrl_time.addWidget(lbl_plt_time_resp)
layH_ctrl_time.addWidget(self.cmb_plt_time_resp)
#
layH_ctrl_time.addWidget(self.lbl_win_time)
layH_ctrl_time.addWidget(self.chk_win_time)
layH_ctrl_time.addSpacing(5)
layH_ctrl_time.addWidget(line1)
layH_ctrl_time.addSpacing(5)
#
layH_ctrl_time.addWidget(self.lbl_log_bottom_time)
layH_ctrl_time.addWidget(self.led_log_bottom_time)
layH_ctrl_time.addWidget(self.but_log_time)
layH_ctrl_time.addSpacing(5)
layH_ctrl_time.addWidget(line2)
layH_ctrl_time.addSpacing(5)
#
layH_ctrl_time.addWidget(lbl_plt_time_spgr)
layH_ctrl_time.addWidget(self.cmb_plt_time_spgr)
layH_ctrl_time.addWidget(self.cmb_mode_spgr_time)
layH_ctrl_time.addWidget(self.lbl_byfs_spgr_time)
layH_ctrl_time.addWidget(self.chk_byfs_spgr_time)
layH_ctrl_time.addWidget(self.but_log_spgr_time)
layH_ctrl_time.addWidget(self.lbl_time_nfft_spgr)
layH_ctrl_time.addWidget(self.led_time_nfft_spgr)
layH_ctrl_time.addWidget(self.lbl_time_ovlp_spgr)
layH_ctrl_time.addWidget(self.led_time_ovlp_spgr)
layH_ctrl_time.addStretch(10)
# layH_ctrl_time.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_time = QWidget(self)
self.wdg_ctrl_time.setLayout(layH_ctrl_time)
# ---- end time domain ------------------
# ---------------------------------------------------------------
# Controls for frequency domain
# ---------------------------------------------------------------
self.lbl_plt_freq_stim = QLabel(to_html("Stimulus X", frmt='bi'), self)
self.cmb_plt_freq_stim = QComboBox(self)
qcmb_box_populate(self.cmb_plt_freq_stim, self.plot_styles_list,
self.plt_freq_stim)
self.cmb_plt_freq_stim.setToolTip(
"<span>Plot style for stimulus.</span>")
self.lbl_plt_freq_stmq = QLabel(
to_html(" Fixp. Stim. X_Q", frmt='bi'), self)
self.cmb_plt_freq_stmq = QComboBox(self)
qcmb_box_populate(self.cmb_plt_freq_stmq, self.plot_styles_list,
self.plt_freq_stmq)
self.cmb_plt_freq_stmq.setToolTip(
"<span>Plot style for <em>fixpoint</em> (quantized) stimulus.</span>"
)
lbl_plt_freq_resp = QLabel(to_html(" Response Y", frmt='bi'),
self)
self.cmb_plt_freq_resp = QComboBox(self)
qcmb_box_populate(self.cmb_plt_freq_resp, self.plot_styles_list,
self.plt_freq_resp)
self.cmb_plt_freq_resp.setToolTip(
"<span>Plot style for response.</span>")
self.but_log_freq = QPushButton("dB")
self.but_log_freq.setMaximumWidth(qtext_width(" dB"))
self.but_log_freq.setObjectName(".but_log_freq")
self.but_log_freq.setToolTip(
"<span>Logarithmic scale for y-axis.</span>")
self.but_log_freq.setCheckable(True)
self.but_log_freq.setChecked(True)
self.lbl_log_bottom_freq = QLabel(to_html("min =", frmt='bi'), self)
self.lbl_log_bottom_freq.setVisible(self.but_log_freq.isChecked())
self.led_log_bottom_freq = QLineEdit(self)
self.led_log_bottom_freq.setText(str(self.bottom_f))
self.led_log_bottom_freq.setMaximumWidth(qtext_width(N_x=8))
self.led_log_bottom_freq.setToolTip(
"<span>Minimum display value for log. scale.</span>")
self.led_log_bottom_freq.setVisible(self.but_log_freq.isChecked())
if not self.but_log_freq.isChecked():
self.bottom_f = 0
self.cmb_freq_display = QComboBox(self)
qcmb_box_populate(self.cmb_freq_display, self.cmb_freq_display_items,
self.cmb_freq_display_item)
self.cmb_freq_display.setObjectName("cmb_re_im_freq")
self.but_Hf = QPushButtonRT(self, to_html("H_id", frmt="bi"), margin=5)
self.but_Hf.setObjectName("chk_Hf")
self.but_Hf.setToolTip(
"<span>Show ideal frequency response, calculated "
"from the filter coefficients.</span>")
self.but_Hf.setChecked(False)
self.but_Hf.setCheckable(True)
self.but_freq_norm_impz = QPushButtonRT(
text="<b><i>E<sub>X</sub></i> = 1</b>", margin=5)
self.but_freq_norm_impz.setToolTip(
"<span>Normalize the FFT of the stimulus with <i>N<sub>FFT</sub></i> for "
"<i>E<sub>X</sub></i> = 1. For a dirac pulse, this yields "
"|<i>Y(f)</i>| = |<i>H(f)</i>|. DC and Noise need to be "
"turned off, window should be <b>Rectangular</b>.</span>")
self.but_freq_norm_impz.setCheckable(True)
self.but_freq_norm_impz.setChecked(True)
self.but_freq_norm_impz.setObjectName("freq_norm_impz")
self.but_freq_show_info = QPushButton("Info", self)
self.but_freq_show_info.setMaximumWidth(qtext_width(" Info "))
self.but_freq_show_info.setObjectName("but_show_info_freq")
self.but_freq_show_info.setToolTip(
"<span>Show signal power in legend.</span>")
self.but_freq_show_info.setCheckable(True)
self.but_freq_show_info.setChecked(False)
layH_ctrl_freq = QHBoxLayout()
layH_ctrl_freq.addWidget(self.lbl_plt_freq_stim)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_stim)
#
layH_ctrl_freq.addWidget(self.lbl_plt_freq_stmq)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_stmq)
#
layH_ctrl_freq.addWidget(lbl_plt_freq_resp)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_resp)
#
layH_ctrl_freq.addSpacing(5)
layH_ctrl_freq.addWidget(self.but_Hf)
layH_ctrl_freq.addStretch(1)
#
layH_ctrl_freq.addWidget(self.lbl_log_bottom_freq)
layH_ctrl_freq.addWidget(self.led_log_bottom_freq)
layH_ctrl_freq.addWidget(self.but_log_freq)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(self.cmb_freq_display)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(self.but_freq_norm_impz)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(self.but_freq_show_info)
layH_ctrl_freq.addStretch(10)
# layH_ctrl_freq.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_freq = QWidget(self)
self.wdg_ctrl_freq.setLayout(layH_ctrl_freq)
# ---- end Frequency Domain ------------------
# ----------------------------------------------------------------------
# GLOBAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
# connect FFT widget to qfft_selector and vice versa and to and signals upstream:
self.fft_widget.sig_tx.connect(self.process_sig_rx)
self.qfft_win_select.sig_tx.connect(self.process_sig_rx)
# connect process_sig_rx output to both FFT widgets
self.sig_tx_fft.connect(self.fft_widget.sig_rx)
self.sig_tx_fft.connect(self.qfft_win_select.sig_rx)
# ----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
# --- run control ---
self.led_N_start.editingFinished.connect(self.update_N)
self.led_N_points.editingFinished.connect(self.update_N)
self.led_N_frame.editingFinished.connect(self.update_N)
self.but_fft_wdg.clicked.connect(self.toggle_fft_wdg)
# -------------------------------------------------------------------------
def update_N(self, emit=True):
"""
Update values for `self.N` and `self.win_dict['N']`, for `self.N_start` and
`self.N_end` from the corresponding QLineEditWidgets.
When `emit==True`, fire `'ui_changed': 'N'` to update the FFT window and the
`plot_impz` widgets. In contrast to `view_changed`, this also forces a
recalculation of the transient response.
This method is called by:
- `self._construct_ui()` with `emit==False`
- `plot_impz()` with `emit==False` when the automatic calculation
of N has to be updated (e.g. order of FIR Filter has changed
- signal-slot connection when `N_start` or `N_end` QLineEdit widgets have
been changed (`emit==True`)
"""
if not isinstance(emit, bool):
logger.error("update N: emit={0}".format(emit))
self.N_start = safe_eval(self.led_N_start.text(),
self.N_start,
return_type='int',
sign='poszero')
self.led_N_start.setText(str(self.N_start)) # update widget
self.N_user = safe_eval(self.led_N_points.text(),
self.N_user,
return_type='int',
sign='poszero')
if self.N_user == 0: # automatic calculation
self.N = self.calc_n_points(self.N_user) # widget remains set to 0
self.led_N_points.setText("0") # update widget
else:
self.N = self.N_user
self.led_N_points.setText(str(self.N)) # update widget
# total number of points to be calculated: N + N_start
self.N_end = self.N + self.N_start
self.N_frame_user = safe_eval(self.led_N_frame.text(),
self.N_frame_user,
return_type='int',
sign='poszero')
if self.N_frame_user == 0:
self.N_frame = self.N_end # use N_end for frame length
self.led_N_frame.setText(
"0") # update widget with "0" as set by user
else:
self.N_frame = self.N_frame_user
self.led_N_frame.setText(str(self.N_frame)) # update widget
# recalculate displayed freq. index values when freq. unit == 'k'
if fb.fil[0]['freq_specs_unit'] == 'k':
self.update_freqs()
if emit:
# use `'ui_changed'` as this triggers recalculation of the transient
# response
self.emit({'ui_changed': 'N'})
# ------------------------------------------------------------------------------
def toggle_fft_wdg(self):
"""
Show / hide FFT widget depending on the state of the corresponding button
When widget is shown, trigger an update of the window function.
"""
if self.but_fft_wdg.isChecked():
self.fft_widget.show()
self.emit({'view_changed': 'fft_win_type'}, sig_name='sig_tx_fft')
else:
self.fft_widget.hide()
# --------------------------------------------------------------------------
def hide_fft_wdg(self):
"""
The closeEvent caused by clicking the "x" in the FFT widget is caught
there and routed here to only hide the window
"""
self.but_fft_wdg.setChecked(False)
self.fft_widget.hide()
# ------------------------------------------------------------------------------
def calc_n_points(self, N_user=0):
"""
Calculate number of points to be displayed, depending on type of filter
(FIR, IIR) and user input. If the user selects 0 points, the number is
calculated automatically.
An improvement would be to calculate the dominant pole and the corresponding
settling time.
"""
if N_user == 0: # set number of data points automatically
if fb.fil[0]['ft'] == 'IIR':
# IIR: No algorithm yet, set N = 100
N = 100
else:
# FIR: N = number of coefficients (max. 100)
N = min(len(fb.fil[0]['ba'][0]), 100)
else:
N = N_user
return N
class Input_Fixpoint_Specs(QWidget):
"""
Create the widget that holds the dynamically loaded fixpoint filter ui
"""
# sig_resize = pyqtSignal() # emit a signal when the image has been resized
sig_rx_local = pyqtSignal(object) # incoming from subwidgets -> process_sig_rx_local
sig_rx = pyqtSignal(object) # incoming, connected to input_tab_widget.sig_rx
sig_tx = pyqtSignal(object) # outcgoing
from pyfda.libs.pyfda_qt_lib import emit
def __init__(self, parent=None):
super(Input_Fixpoint_Specs, self).__init__(parent)
self.tab_label = 'Fixpoint'
self.tool_tip = ("<span>Select a fixpoint implementation for the filter,"
" simulate it or generate a Verilog netlist.</span>")
self.parent = parent
self.fx_path = os.path.realpath(
os.path.join(dirs.INSTALL_DIR, 'fixpoint_widgets'))
self.no_fx_filter_img = os.path.join(self.fx_path, "no_fx_filter.png")
if not os.path.isfile(self.no_fx_filter_img):
logger.error("Image {0:s} not found!".format(self.no_fx_filter_img))
self.default_fx_img = os.path.join(self.fx_path, "default_fx_img.png")
if not os.path.isfile(self.default_fx_img):
logger.error("Image {0:s} not found!".format(self.default_fx_img))
self._construct_UI()
inst_wdg_list = self._update_filter_cmb()
if len(inst_wdg_list) == 0:
logger.warning("No fixpoint filter found for this type of filter!")
else:
logger.debug("Imported {0:d} fixpoint filters:\n{1}"
.format(len(inst_wdg_list.split("\n"))-1, inst_wdg_list))
self._update_fixp_widget()
# ------------------------------------------------------------------------------
def process_sig_rx_local(self, dict_sig: dict = None) -> None:
"""
Process signals coming in from input and output quantizer subwidget and the
dynamically instantiated subwidget and emit {'fx_sim': 'specs_changed'} in
the end.
"""
if dict_sig['id'] == id(self):
logger.warning(f'RX_LOCAL - Stopped infinite loop: "{first_item(dict_sig)}"')
return
elif 'fx_sim' in dict_sig and dict_sig['fx_sim'] == 'specs_changed':
self.wdg_dict2ui() # update wordlengths in UI and set RUN button to 'changed'
dict_sig.update({'id': id(self)}) # propagate 'specs_changed' with self 'id'
self.emit(dict_sig)
return
# ---- Process input and output quantizer settings ('ui' in dict_sig) --
elif 'ui' in dict_sig:
if 'wdg_name' not in dict_sig:
logger.warning(f"No key 'wdg_name' in dict_sig:\n{pprint_log(dict_sig)}")
return
elif dict_sig['wdg_name'] == 'w_input':
"""
Input fixpoint format has been changed or butLock has been clicked.
When I/O lock is active, copy input fixpoint word format to output
word format.
"""
if dict_sig['ui'] == 'butLock'\
and not self.wdg_w_input.butLock.isChecked():
# butLock was deactivitated, don't do anything
return
elif self.wdg_w_input.butLock.isChecked():
# but lock was activated or wordlength setting have been changed
fb.fil[0]['fxqc']['QO']['WI'] = fb.fil[0]['fxqc']['QI']['WI']
fb.fil[0]['fxqc']['QO']['WF'] = fb.fil[0]['fxqc']['QI']['WF']
fb.fil[0]['fxqc']['QO']['W'] = fb.fil[0]['fxqc']['QI']['W']
elif dict_sig['wdg_name'] == 'w_output':
"""
Output fixpoint format has been changed. When I/O lock is active, copy
output fixpoint word format to input word format.
"""
if self.wdg_w_input.butLock.isChecked():
fb.fil[0]['fxqc']['QI']['WI'] = fb.fil[0]['fxqc']['QO']['WI']
fb.fil[0]['fxqc']['QI']['WF'] = fb.fil[0]['fxqc']['QO']['WF']
fb.fil[0]['fxqc']['QI']['W'] = fb.fil[0]['fxqc']['QO']['W']
elif dict_sig['wdg_name'] in {'q_output', 'q_input'}:
pass
else:
logger.error("Unknown wdg_name '{0}' in dict_sig:\n{1}"
.format(dict_sig['wdg_name'], pprint_log(dict_sig)))
return
if dict_sig['ui'] not in {'WI', 'WF', 'ovfl', 'quant', 'cmbW', 'butLock'}:
logger.warning("Unknown value '{0}' for key 'ui'".format(dict_sig['ui']))
self.wdg_dict2ui() # update wordlengths in UI and set RUN button to 'changed'
self.emit({'fx_sim': 'specs_changed'}) # propagate 'specs_changed'
else:
logger.error(f"Unknown key/value in 'dict_sig':\n{pprint_log(dict_sig)}")
# ------------------------------------------------------------------------------
def process_sig_rx(self, dict_sig: dict = None) -> None:
"""
Process signals coming in via `sig_rx` from other widgets.
Trigger fx simulation:
1. ``fx_sim': 'init'``: Start fixpoint simulation by sending
'fx_sim':'start_fx_response_calculation'
2. ``fx_sim_calc_response()``: Receive stimulus from widget in
'fx_sim':'calc_frame_fx_response' and pass it to fixpoint simulation method
3. Store fixpoint response in `fb.fx_result` and return to initiating routine
"""
# logger.info(
# "SIG_RX(): vis={0}\n{1}".format(self.isVisible(), pprint_log(dict_sig)))
# logger.debug(f'SIG_RX(): "{first_item(dict_sig)}"')
if dict_sig['id'] == id(self):
# logger.warning(f'Stopped infinite loop: "{first_item(dict_sig)}"')
return
elif 'data_changed' in dict_sig and dict_sig['data_changed'] == "filter_designed":
# New filter has been designed, update list of available filter topologies
self._update_filter_cmb()
return
elif 'data_changed' in dict_sig or\
('view_changed' in dict_sig and dict_sig['view_changed'] == 'q_coeff'):
# Filter data has changed (but not the filter type) or the coefficient
# format / wordlength have been changed in `input_coeffs`. The latter means
# the view / display has been changed (wordlength) but not the actual
# coefficients in the `input_coeffs` widget. However, the wordlength setting
# is copied to the fxqc dict and from there to the fixpoint widget.
# - update fields in the fixpoint filter widget - wordlength may have
# been changed.
# - Set RUN button to "changed" in wdg_dict2ui()
self.wdg_dict2ui()
# --------------- FX Simulation -------------------------------------------
elif 'fx_sim' in dict_sig:
if dict_sig['fx_sim'] == 'init':
# fixpoint simulation has been started externally, e.g. by
# `impz.impz_init()`, return a handle to the fixpoint filter function
# via signal-slot connection
if not self.fx_wdg_found:
logger.error("No fixpoint widget found!")
qstyle_widget(self.butSimFx, "error")
self.emit({'fx_sim': 'error'})
elif self.fx_sim_init() != 0: # returned an error
qstyle_widget(self.butSimFx, "error")
self.emit({'fx_sim': 'error'})
else:
self.emit({'fx_sim': 'start_fx_response_calculation',
'fxfilter_func': self.fx_filt_ui.fxfilter})
elif dict_sig['fx_sim'] == 'calc_frame_fx_response':
self.fx_sim_calc_response(dict_sig)
# return to the routine collecting the response frame by frame
return
elif dict_sig['fx_sim'] == 'specs_changed':
# fixpoint specification have been changed somewhere, update ui
# and set run button to "changed" in wdg_dict2ui()
self.wdg_dict2ui()
elif dict_sig['fx_sim'] == 'finish':
qstyle_widget(self.butSimFx, "normal")
else:
logger.error('Unknown "fx_sim" command option "{0}"\n'
'\treceived from "{1}".'
.format(dict_sig['fx_sim'], dict_sig['class']))
# ---- resize image when "Fixpoint" tab is selected or widget size is changed:
elif 'ui_changed' in dict_sig and dict_sig['ui_changed'] in {'resized', 'tab'}\
and self.isVisible():
self.resize_img()
# ------------------------------------------------------------------------------
def _construct_UI(self) -> None:
"""
Intitialize the main GUI, consisting of:
- A combo box to select the filter topology and an image of the topology
- The input quantizer
- The UI of the fixpoint filter widget
- Simulation and export buttons
"""
# ------------------------------------------------------------------------------
# Define frame and layout for the dynamically updated filter widget
# The actual filter widget is instantiated in self.set_fixp_widget() later on
self.layH_fx_wdg = QHBoxLayout()
# self.layH_fx_wdg.setContentsMargins(*params['wdg_margins'])
frmHDL_wdg = QFrame(self)
frmHDL_wdg.setLayout(self.layH_fx_wdg)
# frmHDL_wdg.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
# ------------------------------------------------------------------------------
# Initialize fixpoint filter combobox, title and description
# ------------------------------------------------------------------------------
self.cmb_fx_wdg = QComboBox(self)
self.cmb_fx_wdg.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.lblTitle = QLabel("not set", self)
self.lblTitle.setWordWrap(True)
self.lblTitle.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
layHTitle = QHBoxLayout()
layHTitle.addWidget(self.cmb_fx_wdg)
layHTitle.addWidget(self.lblTitle)
self.frmTitle = QFrame(self)
self.frmTitle.setLayout(layHTitle)
self.frmTitle.setContentsMargins(*params['wdg_margins'])
# ------------------------------------------------------------------------------
# Input and Output Quantizer
# ------------------------------------------------------------------------------
# - instantiate widgets for input and output quantizer
# - pass the quantization (sub-?) dictionary to the constructor
# ------------------------------------------------------------------------------
self.wdg_w_input = UI_W(self, q_dict=fb.fil[0]['fxqc']['QI'],
wdg_name='w_input', label='', lock_visible=True)
self.wdg_w_input.sig_tx.connect(self.process_sig_rx_local)
cmb_q = ['round', 'floor', 'fix']
self.wdg_w_output = UI_W(self, q_dict=fb.fil[0]['fxqc']['QO'],
wdg_name='w_output', label='')
self.wdg_w_output.sig_tx.connect(self.process_sig_rx_local)
self.wdg_q_output = UI_Q(self, q_dict=fb.fil[0]['fxqc']['QO'],
wdg_name='q_output',
label='Output Format <i>Q<sub>Y </sub></i>:',
cmb_q=cmb_q, cmb_ov=['wrap', 'sat'])
self.wdg_q_output.sig_tx.connect(self.sig_rx_local)
if HAS_DS:
cmb_q.append('dsm')
self.wdg_q_input = UI_Q(self, q_dict=fb.fil[0]['fxqc']['QI'],
wdg_name='q_input',
label='Input Format <i>Q<sub>X </sub></i>:',
cmb_q=cmb_q)
self.wdg_q_input.sig_tx.connect(self.sig_rx_local)
# Layout and frame for input quantization
layVQiWdg = QVBoxLayout()
layVQiWdg.addWidget(self.wdg_q_input)
layVQiWdg.addWidget(self.wdg_w_input)
frmQiWdg = QFrame(self)
# frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmQiWdg.setLayout(layVQiWdg)
frmQiWdg.setContentsMargins(*params['wdg_margins'])
# Layout and frame for output quantization
layVQoWdg = QVBoxLayout()
layVQoWdg.addWidget(self.wdg_q_output)
layVQoWdg.addWidget(self.wdg_w_output)
frmQoWdg = QFrame(self)
# frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmQoWdg.setLayout(layVQoWdg)
frmQoWdg.setContentsMargins(*params['wdg_margins'])
# ------------------------------------------------------------------------------
# Dynamically updated image of filter topology (label as placeholder)
# ------------------------------------------------------------------------------
# allow setting background color
# lbl_fixp_img_palette = QPalette()
# lbl_fixp_img_palette.setColor(QPalette(window, Qt: white))
# lbl_fixp_img_palette.setBrush(self.backgroundRole(), QColor(150, 0, 0))
# lbl_fixp_img_palette.setColor(QPalette: WindowText, Qt: blue)
self.lbl_fixp_img = QLabel("img not set", self)
self.lbl_fixp_img.setAutoFillBackground(True)
# self.lbl_fixp_img.setPalette(lbl_fixp_img_palette)
# self.lbl_fixp_img.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
self.embed_fixp_img(self.no_fx_filter_img)
layHImg = QHBoxLayout()
layHImg.setContentsMargins(0, 0, 0, 0)
layHImg.addWidget(self.lbl_fixp_img) # , Qt.AlignCenter)
self.frmImg = QFrame(self)
self.frmImg.setLayout(layHImg)
self.frmImg.setContentsMargins(*params['wdg_margins'])
# ------------------------------------------------------------------------------
# Simulation and export Buttons
# ------------------------------------------------------------------------------
self.butExportHDL = QPushButton(self)
self.butExportHDL.setToolTip(
"Create Verilog or VHDL netlist for fixpoint filter.")
self.butExportHDL.setText("Create HDL")
self.butSimFx = QPushButton(self)
self.butSimFx.setToolTip("Start fixpoint simulation.")
self.butSimFx.setText("Sim. FX")
self.layHHdlBtns = QHBoxLayout()
self.layHHdlBtns.addWidget(self.butSimFx)
self.layHHdlBtns.addWidget(self.butExportHDL)
# This frame encompasses the HDL buttons sim and convert
frmHdlBtns = QFrame(self)
# frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmHdlBtns.setLayout(self.layHHdlBtns)
frmHdlBtns.setContentsMargins(*params['wdg_margins'])
# -------------------------------------------------------------------
# Top level layout
# -------------------------------------------------------------------
splitter = QSplitter(self)
splitter.setOrientation(Qt.Vertical)
splitter.addWidget(frmHDL_wdg)
splitter.addWidget(frmQoWdg)
splitter.addWidget(self.frmImg)
# setSizes uses absolute pixel values, but can be "misused" by specifying values
# that are way too large: in this case, the space is distributed according
# to the _ratio_ of the values:
splitter.setSizes([3000, 3000, 5000])
layVMain = QVBoxLayout()
layVMain.addWidget(self.frmTitle)
layVMain.addWidget(frmHdlBtns)
layVMain.addWidget(frmQiWdg)
layVMain.addWidget(splitter)
layVMain.addStretch()
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
# ----------------------------------------------------------------------
# GLOBAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.sig_rx.connect(self.process_sig_rx)
self.sig_rx_local.connect(self.process_sig_rx_local)
# dynamic connection in `self._update_fixp_widget()`:
# -----
# if hasattr(self.fx_filt_ui, "sig_rx"):
# self.sig_rx.connect(self.fx_filt_ui.sig_rx)
# if hasattr(self.fx_filt_ui, "sig_tx"):
# self.fx_filt_ui.sig_tx.connect(self.sig_rx_local)
# ----
# ----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.cmb_fx_wdg.currentIndexChanged.connect(self._update_fixp_widget)
self.butExportHDL.clicked.connect(self.exportHDL)
self.butSimFx.clicked.connect(lambda x: self.emit({'fx_sim': 'start'}))
# ----------------------------------------------------------------------
# EVENT FILTER
# ----------------------------------------------------------------------
# # monitor events and generate sig_resize event when resized
# self.lbl_fixp_img.installEventFilter(self)
# # ... then redraw image when resized
# self.sig_resize.connect(self.resize_img)
# ------------------------------------------------------------------------------
def _update_filter_cmb(self) -> str:
"""
(Re-)Read list of available fixpoint filters for a given filter design
every time a new filter design is selected.
Then try to import the fixpoint designs in the list and populate the
fixpoint implementation combo box `self.cmb_fx_wdg` when successfull.
Returns
-------
inst_wdg_str: str
string with all fixpoint widgets that could be instantiated successfully
"""
inst_wdg_str = "" # full names of successfully instantiated widgets for logging
# remember last fx widget setting:
last_fx_wdg = qget_cmb_box(self.cmb_fx_wdg, data=False)
self.cmb_fx_wdg.clear()
fc = fb.fil[0]['fc']
if 'fix' in fb.filter_classes[fc]:
self.cmb_fx_wdg.blockSignals(True)
for class_name in fb.filter_classes[fc]['fix']: # get class name
try: # construct module + class name ...
mod_class_name = fb.fixpoint_classes[class_name]['mod'] + '.'\
+ class_name
# ... and display name
disp_name = fb.fixpoint_classes[class_name]['name']
self.cmb_fx_wdg.addItem(disp_name, mod_class_name)
inst_wdg_str += '\t' + class_name + ' : ' + mod_class_name + '\n'
except AttributeError as e:
logger.warning('Widget "{0}":\n{1}'.format(class_name, e))
self.embed_fixp_img(self.no_fx_filter_img)
continue # with next `class_name` of for loop
except KeyError as e:
logger.warning("No fixpoint filter for filter type {0} available."
.format(e))
self.embed_fixp_img(self.no_fx_filter_img)
continue # with next `class_name` of for loop
# restore last fx widget if possible
idx = self.cmb_fx_wdg.findText(last_fx_wdg)
# set to idx 0 if not found (returned -1)
self.cmb_fx_wdg.setCurrentIndex(max(idx, 0))
self.cmb_fx_wdg.blockSignals(False)
else: # no fixpoint widget
self.embed_fixp_img(self.no_fx_filter_img)
self._update_fixp_widget()
return inst_wdg_str
# # ------------------------------------------------------------------------------
# def eventFilter(self, source, event):
# """
# Filter all events generated by monitored QLabel, only resize events are
# processed here, generating a `sig_resize` signal. All other events
# are passed on to the next hierarchy level.
# """
# if event.type() == QEvent.Resize:
# logger.warning("resize event!")
# self.sig_resize.emit()
# # Call base class method to continue normal event processing:
# return super(Input_Fixpoint_Specs, self).eventFilter(source, event)
# ------------------------------------------------------------------------------
def embed_fixp_img(self, img_file: str) -> QPixmap:
"""
Embed `img_file` in png format as `self.img_fixp`
Parameters
----------
img_file: str
path and file name to image file
Returns
-------
self.img_fixp: QPixmap object
pixmap containing the passed img_file
"""
if not os.path.isfile(img_file):
logger.warning("Image file {0} doesn't exist.".format(img_file))
img_file = self.default_fx_img
_, file_extension = os.path.splitext(img_file)
if file_extension != '.png':
logger.error('Unknown file extension "{0}"!'.format(file_extension))
img_file = self.default_fx_img
self.img_fixp = QPixmap(img_file)
# logger.warning(f"img_fixp = {img_file}")
# logger.warning(f"_embed_fixp_img(): {self.img_fixp.__class__.__name__}")
return self.img_fixp
# ------------------------------------------------------------------------------
def resize_img(self) -> None:
"""
Triggered when `self` (the widget) is selected or resized. The method resizes
the image inside QLabel to completely fill the label while keeping
the aspect ratio. An offset of some pixels is needed, otherwise the image
is clipped.
"""
# logger.warning(f"resize_img(): img_fixp = {self.img_fixp.__class__.__name__}")
if self.parent is None: # parent is QApplication, has no width or height
par_w, par_h = 300, 700 # fixed size for module level test
else: # widget parent is InputTabWidget()
par_w, par_h = self.parent.width(), self.parent.height()
img_w, img_h = self.img_fixp.width(), self.img_fixp.height()
if img_w > 10:
max_h = int(max(np.floor(img_h * par_w/img_w) - 5, 20))
else:
max_h = 200
logger.debug("img size: {0},{1}, frm size: {2},{3}, max_h: {4}"
.format(img_w, img_h, par_w, par_h, max_h))
# The following doesn't work because the width of the parent widget can grow
# with the image size
# img_scaled = self.img_fixp.scaled(self.lbl_fixp_img.size(),
# Qt.KeepAspectRatio, Qt.SmoothTransformation)
img_scaled = self.img_fixp.scaledToHeight(max_h, Qt.SmoothTransformation)
self.lbl_fixp_img.setPixmap(img_scaled)
# ------------------------------------------------------------------------------
def _update_fixp_widget(self):
"""
This method is called at the initialization of the widget and when
a new fixpoint filter implementation is selected from the combo box:
- Destruct old instance of fixpoint filter widget `self.fx_filt_ui`
- Import and instantiate new fixpoint filter widget e.g. after changing the
filter topology as
- Try to load image for filter topology
- Update the UI of the widget
- Try to instantiate HDL filter as `self.fx_filt_ui.fixp_filter` with
dummy data
- emit {'fx_sim': 'specs_changed'} when successful
"""
def _disable_fx_wdg(self) -> None:
if hasattr(self, "fx_filt_ui") and self.fx_filt_ui is not None:
# is a fixpoint widget loaded?
try:
# try to remove widget from layout
self.layH_fx_wdg.removeWidget(self.fx_filt_ui)
# delete QWidget when scope has been left
self.fx_filt_ui.deleteLater()
except AttributeError as e:
logger.error("Destructing UI failed!\n{0}".format(e))
self.fx_wdg_found = False
self.butSimFx.setEnabled(False)
self.butExportHDL.setVisible(False)
# self.layH_fx_wdg.setVisible(False)
self.img_fixp = self.embed_fixp_img(self.no_fx_filter_img)
self.resize_img()
self.lblTitle.setText("")
self.fx_filt_ui = None
# -----------------------------------------------------------
_disable_fx_wdg(self) # destruct old fixpoint widget instance:
# instantiate new fixpoint widget class as self.fx_filt_ui
cmb_wdg_fx_cur = qget_cmb_box(self.cmb_fx_wdg, data=False)
if cmb_wdg_fx_cur: # at least one valid fixpoint widget found
self.fx_wdg_found = True
# get list [module name and path, class name]
fx_mod_class_name = qget_cmb_box(self.cmb_fx_wdg, data=True).rsplit('.', 1)
fx_mod = importlib.import_module(fx_mod_class_name[0]) # get module
fx_filt_ui_class = getattr(fx_mod, fx_mod_class_name[1]) # get class
logger.info("Instantiating new FX widget\n\t"
f"{fx_mod.__name__}.{fx_filt_ui_class.__name__}")
# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
self.fx_filt_ui = fx_filt_ui_class() # instantiate the fixpoint widget
# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
# and add it to layout:
self.layH_fx_wdg.addWidget(self.fx_filt_ui, stretch=1)
self.fx_filt_ui.setVisible(True)
self.wdg_dict2ui() # initialize the fixpoint subwidgets from the fxqc_dict
# ---- connect signals to fx_filt_ui ----
if hasattr(self.fx_filt_ui, "sig_rx"):
self.sig_rx.connect(self.fx_filt_ui.sig_rx)
if hasattr(self.fx_filt_ui, "sig_tx"):
self.fx_filt_ui.sig_tx.connect(self.sig_rx_local)
# ---- get name of new fixpoint filter image ----
if not (hasattr(self.fx_filt_ui, "img_name") and self.fx_filt_ui.img_name):
# no image name defined, use default image
img_file = self.default_fx_img
else:
# get path of imported fixpoint widget ...
file_path = os.path.dirname(fx_mod.__file__)
# ... and construct full image name from it
img_file = os.path.join(file_path, self.fx_filt_ui.img_name)
# ---- instantiate and scale graphic of filter topology ----
self.embed_fixp_img(img_file)
self.resize_img()
# ---- set title and description for filter
self.lblTitle.setText(self.fx_filt_ui.title)
# Check which methods the fixpoint widget provides and enable
# corresponding buttons:
self.butExportHDL.setVisible(hasattr(self.fx_filt_ui, "to_hdl"))
self.butSimFx.setEnabled(hasattr(self.fx_filt_ui, "fxfilter"))
self.update_fxqc_dict()
self.emit({'fx_sim': 'specs_changed'})
# ------------------------------------------------------------------------------
def wdg_dict2ui(self):
"""
Trigger an update of the fixpoint widget UI when view (i.e. fixpoint
coefficient format) or data have been changed outside this class. Additionally,
pass the fixpoint quantization widget to update / restore other subwidget
settings.
Set the RUN button to "changed".
"""
# fb.fil[0]['fxqc']['QCB'].update({'scale':(1 << fb.fil[0]['fxqc']['QCB']['W'])})
self.wdg_q_input.dict2ui(fb.fil[0]['fxqc']['QI'])
self.wdg_q_output.dict2ui(fb.fil[0]['fxqc']['QO'])
self.wdg_w_input.dict2ui(fb.fil[0]['fxqc']['QI'])
self.wdg_w_output.dict2ui(fb.fil[0]['fxqc']['QO'])
if self.fx_wdg_found and hasattr(self.fx_filt_ui, "dict2ui"):
self.fx_filt_ui.dict2ui()
# dict_sig = {'fx_sim':'specs_changed'}
# self.emit(dict_sig)
qstyle_widget(self.butSimFx, "changed")
# ------------------------------------------------------------------------------
def update_fxqc_dict(self):
"""
Update the fxqc dictionary before simulation / HDL generation starts.
"""
if self.fx_wdg_found:
# get a dict with the coefficients and fixpoint settings from fixpoint widget
if hasattr(self.fx_filt_ui, "ui2dict"):
fb.fil[0]['fxqc'].update(self.fx_filt_ui.ui2dict())
logger.debug("update fxqc: \n{0}".format(pprint_log(fb.fil[0]['fxqc'])))
else:
logger.error("No fixpoint widget found!")
# ------------------------------------------------------------------------------
def exportHDL(self):
"""
Synthesize HDL description of filter
"""
dlg = QFD(self) # instantiate file dialog object
file_types = "Verilog (*.v)"
# needed for overwrite confirmation when name is entered without suffix:
dlg.setDefaultSuffix('v')
dlg.setWindowTitle('Export Verilog')
dlg.setNameFilter(file_types)
dlg.setDirectory(dirs.save_dir)
# set mode "save file" instead "open file":
dlg.setAcceptMode(QFD.AcceptSave)
dlg.setOption(QFD.DontConfirmOverwrite, False)
if dlg.exec_() == QFD.Accepted:
hdl_file = qstr(dlg.selectedFiles()[0])
# hdl_type = extract_file_ext(qstr(dlg.selectedNameFilter()))[0]
# =============================================================================
# # static method getSaveFileName_() is simple but unflexible
# hdl_file, hdl_filter = dlg.getSaveFileName_(
# caption="Save Verilog netlist as (this also defines the module name)",
# directory=dirs.save_dir, filter=file_types)
# hdl_file = qstr(hdl_file)
# if hdl_file != "": # "operation cancelled" returns an empty string
# # return '.v' or '.vhd' depending on filetype selection:
# # hdl_type = extract_file_ext(qstr(hdl_filter))[0]
# # sanitized dir + filename + suffix. The filename suffix is replaced
# # by `v` later.
# hdl_file = os.path.normpath(hdl_file) # complete path + file name
# =============================================================================
hdl_dir_name = os.path.dirname(hdl_file) # extract the directory path
if not os.path.isdir(hdl_dir_name): # create directory if it doesn't exist
os.mkdir(hdl_dir_name)
dirs.save_dir = hdl_dir_name # make this directory the new default / base dir
hdl_file_name = os.path.splitext(os.path.basename(hdl_file))[0]
hdl_full_name = os.path.join(hdl_dir_name, hdl_file_name + ".v")
# remove all non-alphanumeric chars:
vlog_mod_name = re.sub(r'\W+', '', hdl_file_name).lower()
logger.info('Creating hdl_file "{0}"\n\twith top level module "{1}"'
.format(hdl_full_name, vlog_mod_name))
try:
self.update_fxqc_dict()
self.fx_filt_ui.construct_fixp_filter()
code = self.fx_filt_ui.to_hdl(name=vlog_mod_name)
# logger.info(str(code)) # print verilog code to console
with io.open(hdl_full_name, 'w', encoding="utf8") as f:
f.write(str(code))
logger.info("HDL conversion finished!")
except (IOError, TypeError) as e:
logger.warning(e)
# --------------------------------------------------------------------------
def fx_sim_init(self):
"""
Initialize fix-point simulation:
- Update the `fxqc_dict` containing all quantization information
- Setup a filter instance for fixpoint simulation
- Request a stimulus signal
Returns
-------
error: int
0 for sucessful fx widget construction, -1 for error
"""
try:
self.update_fxqc_dict()
self.fx_filt_ui.init_filter() # setup filter instance
return 0
except ValueError as e:
logger.error('Fixpoint stimulus generation failed during "init"'
'\nwith "{0} "'.format(e))
return -1
# ------------------------------------------------------------------------------
def fx_sim_calc_response(self, dict_sig) -> None:
"""
- Read fixpoint stimulus from `dict_sig` in integer format
- Pass it to the fixpoint filter which calculates the fixpoint response
- Store the result in `fb.fx_results` and return. In case of an error,
`fb.fx_results == None`
Returns
-------
None
"""
try:
# logger.info(
# 'Simulate fixpoint frame with "{0}" stimulus:\n\t{1}'.format(
# dict_sig['class'],
# pprint_log(dict_sig['fx_stimulus'], tab=" "),
# ))
# Run fixpoint simulation and store the results as integer values:
fb.fx_results = self.fx_filt_ui.fxfilter(dict_sig['fx_stimulus'])
if len(fb.fx_results) == 0:
logger.error("Fixpoint simulation returned empty results!")
# else:
# # logger.debug("fx_results: {0}"\
# # .format(pprint_log(fb.fx_results, tab= " ")))
# logger.info(
# f'Fixpoint simulation successful for dict\n{pprint_log(dict_sig)}'
# f'\tStimuli: Shape {np.shape(dict_sig["fx_stimulus"])}'
# f' of type "{dict_sig["fx_stimulus"].dtype}"'
# f'\n\tResponse: Shape {np.shape(fb.fx_results)}'
# f' of type "{type(fb.fx_results).__name__} "'
# f' ("{type(fb.fx_results[0]).__name__}")'
# )
except ValueError as e:
logger.error("Simulator error {0}".format(e))
fb.fx_results = None
except AssertionError as e:
logger.error('Fixpoint simulation failed for dict\n{0}'
'\twith msg. "{1}"\n\tStimuli: Shape {2} of type "{3}"'
'\n\tResponse: Shape {4} of type "{5}"'.format(
pprint_log(dict_sig), e,
np.shape(dict_sig['fx_stimulus']),
dict_sig['fx_stimulus'].dtype,
np.shape(fb.fx_results),
type(fb.fx_results)
))
fb.fx_results = None
if fb.fx_results is None:
qstyle_widget(self.butSimFx, "error")
else:
pass # everything ok, return
# logger.debug("Sending fixpoint results")
return
class PlotImpz_UI(QWidget):
"""
Create the UI for the PlotImpz class
"""
# incoming: not implemented at the moment, update_N is triggered directly
# by plot_impz
# sig_rx = pyqtSignal(object)
# outgoing: from various UI elements to PlotImpz ('ui_changed':'xxx')
sig_tx = pyqtSignal(object)
# outgoing to local fft window
sig_tx_fft = pyqtSignal(object)
def __init__(self, parent):
"""
Pass instance `parent` of parent class (FilterCoeffs)
"""
super(PlotImpz_UI, self).__init__(parent)
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
# initial settings
self.N_start = 0
self.N_user = 0
self.N = 0
# time
self.plt_time_resp = "Stem"
self.plt_time_stim = "None"
self.plt_time_stmq = "None"
self.plt_time_spgr = "None"
self.bottom_t = -80 # initial value for log. scale (time)
self.nfft_spgr_time = 256 # number of fft points per spectrogram segment
self.ovlp_spgr_time = 128 # number of overlap points between spectrogram segments
self.mode_spgr_time = "magnitude"
# stimuli
self.stim = "Impulse"
self.chirp_method = 'Linear'
self.noise = "None"
self.f1 = 0.02
self.f2 = 0.03
self.A1 = 1.0
self.A2 = 0.0
self.phi1 = self.phi2 = 0
self.noi = 0.1
self.noise = 'none'
self.DC = 0.0
self.stim_formula = "A1 * abs(sin(2 * pi * f1 * n))"
# frequency
self.plt_freq_resp = "Line"
self.plt_freq_stim = "None"
self.plt_freq_stmq = "None"
self.bottom_f = -120 # initial value for log. scale
self.param = None
# dictionary for fft window settings
self.win_dict = fb.fil[0]['win_fft']
self.fft_window = None # handle for FFT window pop-up widget
self.window_name = "Rectangular"
self._construct_UI()
self._enable_stim_widgets()
self.update_N(emit=False) # also updates window function
self._update_noi()
def _construct_UI(self):
# ----------- ---------------------------------------------------
# Run control widgets
# ---------------------------------------------------------------
self.chk_auto_run = QCheckBox("Auto", self)
self.chk_auto_run.setObjectName("chk_auto_run")
self.chk_auto_run.setToolTip("<span>Update response automatically when "
"parameters have been changed.</span>")
self.chk_auto_run.setChecked(True)
self.but_run = QPushButton(self)
self.but_run.setText("RUN")
self.but_run.setToolTip("Run simulation")
self.but_run.setEnabled(not self.chk_auto_run.isChecked())
self.cmb_sim_select = QComboBox(self)
self.cmb_sim_select.addItems(["Float","Fixpoint"])
qset_cmb_box(self.cmb_sim_select, "Float")
self.cmb_sim_select.setToolTip("<span>Simulate floating-point or fixpoint response."
"</span>")
self.lbl_N_points = QLabel(to_html("N", frmt='bi') + " =", self)
self.led_N_points = QLineEdit(self)
self.led_N_points.setText(str(self.N))
self.led_N_points.setToolTip("<span>Number of displayed data points. "
"<i>N</i> = 0 tries to choose for you.</span>")
self.lbl_N_start = QLabel(to_html("N_0", frmt='bi') + " =", self)
self.led_N_start = QLineEdit(self)
self.led_N_start.setText(str(self.N_start))
self.led_N_start.setToolTip("<span>First point to plot.</span>")
self.chk_fx_scale = QCheckBox("Int. scale", self)
self.chk_fx_scale.setObjectName("chk_fx_scale")
self.chk_fx_scale.setToolTip("<span>Display data with integer (fixpoint) scale.</span>")
self.chk_fx_scale.setChecked(False)
self.chk_stim_options = QCheckBox("Stim. Options", self)
self.chk_stim_options.setObjectName("chk_stim_options")
self.chk_stim_options.setToolTip("<span>Show stimulus options.</span>")
self.chk_stim_options.setChecked(True)
self.but_fft_win = QPushButton(self)
self.but_fft_win.setText("WIN FFT")
self.but_fft_win.setToolTip('<span> time and frequency response of FFT Window '
'(can be modified in the "Frequency" tab)</span>')
self.but_fft_win.setCheckable(True)
self.but_fft_win.setChecked(False)
layH_ctrl_run = QHBoxLayout()
layH_ctrl_run.addWidget(self.but_run)
#layH_ctrl_run.addWidget(self.lbl_sim_select)
layH_ctrl_run.addWidget(self.cmb_sim_select)
layH_ctrl_run.addWidget(self.chk_auto_run)
layH_ctrl_run.addStretch(1)
layH_ctrl_run.addWidget(self.lbl_N_start)
layH_ctrl_run.addWidget(self.led_N_start)
layH_ctrl_run.addStretch(1)
layH_ctrl_run.addWidget(self.lbl_N_points)
layH_ctrl_run.addWidget(self.led_N_points)
layH_ctrl_run.addStretch(2)
layH_ctrl_run.addWidget(self.chk_fx_scale)
layH_ctrl_run.addStretch(2)
layH_ctrl_run.addWidget(self.chk_stim_options)
layH_ctrl_run.addStretch(2)
layH_ctrl_run.addWidget(self.but_fft_win)
layH_ctrl_run.addStretch(10)
#layH_ctrl_run.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_run = QWidget(self)
self.wdg_ctrl_run.setLayout(layH_ctrl_run)
# --- end of run control ----------------------------------------
# ----------- ---------------------------------------------------
# Controls for time domain
# ---------------------------------------------------------------
plot_styles_list = ["None","Dots","Line","Line*","Stem","Stem*","Step","Step*"]
lbl_plt_time_title = QLabel("<b>View:</b>", self)
self.lbl_plt_time_stim = QLabel(to_html("Stimulus x", frmt='bi'), self)
self.cmb_plt_time_stim = QComboBox(self)
self.cmb_plt_time_stim.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_time_stim, self.plt_time_stim)
self.cmb_plt_time_stim.setToolTip("<span>Plot style for stimulus.</span>")
self.lbl_plt_time_stmq = QLabel(to_html(" Fixp. Stim. x_Q", frmt='bi'), self)
self.cmb_plt_time_stmq = QComboBox(self)
self.cmb_plt_time_stmq.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_time_stmq, self.plt_time_stmq)
self.cmb_plt_time_stmq.setToolTip("<span>Plot style for <em>fixpoint</em> (quantized) stimulus.</span>")
lbl_plt_time_resp = QLabel(to_html(" Response y", frmt='bi'), self)
self.cmb_plt_time_resp = QComboBox(self)
self.cmb_plt_time_resp.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_time_resp, self.plt_time_resp)
self.cmb_plt_time_resp.setToolTip("<span>Plot style for response.</span>")
lbl_win_time = QLabel(to_html(" FFT Window", frmt='bi'), self)
self.chk_win_time = QCheckBox(self)
self.chk_win_time.setObjectName("chk_win_time")
self.chk_win_time.setToolTip('<span>Show FFT windowing function (can be modified in the "Frequency" tab).</span>')
self.chk_win_time.setChecked(False)
lbl_log_time = QLabel(to_html("dB", frmt='b'), self)
self.chk_log_time = QCheckBox(self)
self.chk_log_time.setObjectName("chk_log_time")
self.chk_log_time.setToolTip("<span>Logarithmic scale for y-axis.</span>")
self.chk_log_time.setChecked(False)
self.lbl_log_bottom_time = QLabel(to_html("min =", frmt='bi'), self)
self.lbl_log_bottom_time.setVisible(True)
self.led_log_bottom_time = QLineEdit(self)
self.led_log_bottom_time.setText(str(self.bottom_t))
self.led_log_bottom_time.setToolTip("<span>Minimum display value for time "
"and spectrogram plots with log. scale.</span>")
self.led_log_bottom_time.setVisible(True)
lbl_plt_time_spgr = QLabel(to_html(" Spectrogram", frmt='bi'), self)
self.cmb_plt_time_spgr = QComboBox(self)
self.cmb_plt_time_spgr.addItems(["None", "x[n]", "x_q[n]", "y[n]"])
qset_cmb_box(self.cmb_plt_time_spgr, self.plt_time_spgr)
self.cmb_plt_time_spgr.setToolTip("<span>Show Spectrogram for selected signal.</span>")
spgr_en = self.plt_time_spgr != "None"
self.lbl_log_spgr_time = QLabel(to_html(" dB", frmt='b'), self)
self.lbl_log_spgr_time.setVisible(spgr_en)
self.chk_log_spgr_time = QCheckBox(self)
self.chk_log_spgr_time.setObjectName("chk_log_spgr")
self.chk_log_spgr_time.setToolTip("<span>Logarithmic scale for spectrogram.</span>")
self.chk_log_spgr_time.setChecked(True)
self.chk_log_spgr_time.setVisible(spgr_en)
self.lbl_nfft_spgr_time = QLabel(to_html(" N_FFT =", frmt='bi'), self)
self.lbl_nfft_spgr_time.setVisible(spgr_en)
self.led_nfft_spgr_time = QLineEdit(self)
self.led_nfft_spgr_time.setText(str(self.nfft_spgr_time))
self.led_nfft_spgr_time.setToolTip("<span>Number of FFT points per spectrogram segment.</span>")
self.led_nfft_spgr_time.setVisible(spgr_en)
self.lbl_ovlp_spgr_time = QLabel(to_html(" N_OVLP =", frmt='bi'), self)
self.lbl_ovlp_spgr_time.setVisible(spgr_en)
self.led_ovlp_spgr_time = QLineEdit(self)
self.led_ovlp_spgr_time.setText(str(self.ovlp_spgr_time))
self.led_ovlp_spgr_time.setToolTip("<span>Number of overlap data points between spectrogram segments.</span>")
self.led_ovlp_spgr_time.setVisible(spgr_en)
self.lbl_mode_spgr_time = QLabel(to_html(" Mode", frmt='bi'), self)
self.lbl_mode_spgr_time.setVisible(spgr_en)
self.cmb_mode_spgr_time = QComboBox(self)
spgr_modes = [("PSD","psd"), ("Mag.","magnitude"),\
("Angle","angle"), ("Phase","phase")]
for i in spgr_modes:
self.cmb_mode_spgr_time.addItem(*i)
qset_cmb_box(self.cmb_mode_spgr_time, self.mode_spgr_time, data=True)
self.cmb_mode_spgr_time.setToolTip("<span>Spectrogram display mode.</span>")
self.cmb_mode_spgr_time.setVisible(spgr_en)
self.lbl_byfs_spgr_time = QLabel(to_html(" per f_S", frmt='b'), self)
self.lbl_byfs_spgr_time.setVisible(spgr_en)
self.chk_byfs_spgr_time = QCheckBox(self)
self.chk_byfs_spgr_time.setObjectName("chk_log_spgr")
self.chk_byfs_spgr_time.setToolTip("<span>Display spectral density i.e. scale by f_S</span>")
self.chk_byfs_spgr_time.setChecked(True)
self.chk_byfs_spgr_time.setVisible(spgr_en)
# self.lbl_colorbar_time = QLabel(to_html(" Col.bar", frmt='b'), self)
# self.lbl_colorbar_time.setVisible(spgr_en)
# self.chk_colorbar_time = QCheckBox(self)
# self.chk_colorbar_time.setObjectName("chk_colorbar_time")
# self.chk_colorbar_time.setToolTip("<span>Enable colorbar</span>")
# self.chk_colorbar_time.setChecked(True)
# self.chk_colorbar_time.setVisible(spgr_en)
self.chk_fx_limits = QCheckBox("Min/max.", self)
self.chk_fx_limits.setObjectName("chk_fx_limits")
self.chk_fx_limits.setToolTip("<span>Display limits of fixpoint range.</span>")
self.chk_fx_limits.setChecked(False)
layH_ctrl_time = QHBoxLayout()
layH_ctrl_time.addWidget(lbl_plt_time_title)
layH_ctrl_time.addStretch(1)
layH_ctrl_time.addWidget(self.lbl_plt_time_stim)
layH_ctrl_time.addWidget(self.cmb_plt_time_stim)
#
layH_ctrl_time.addWidget(self.lbl_plt_time_stmq)
layH_ctrl_time.addWidget(self.cmb_plt_time_stmq)
#
layH_ctrl_time.addWidget(lbl_plt_time_resp)
layH_ctrl_time.addWidget(self.cmb_plt_time_resp)
#
layH_ctrl_time.addWidget(lbl_win_time)
layH_ctrl_time.addWidget(self.chk_win_time)
layH_ctrl_time.addStretch(1)
layH_ctrl_time.addWidget(lbl_log_time)
layH_ctrl_time.addWidget(self.chk_log_time)
layH_ctrl_time.addWidget(self.lbl_log_bottom_time)
layH_ctrl_time.addWidget(self.led_log_bottom_time)
#
layH_ctrl_time.addStretch(1)
#
layH_ctrl_time.addWidget(lbl_plt_time_spgr)
layH_ctrl_time.addWidget(self.cmb_plt_time_spgr)
layH_ctrl_time.addWidget(self.lbl_log_spgr_time)
layH_ctrl_time.addWidget(self.chk_log_spgr_time)
layH_ctrl_time.addWidget(self.lbl_nfft_spgr_time)
layH_ctrl_time.addWidget(self.led_nfft_spgr_time)
layH_ctrl_time.addWidget(self.lbl_ovlp_spgr_time)
layH_ctrl_time.addWidget(self.led_ovlp_spgr_time)
layH_ctrl_time.addWidget(self.lbl_mode_spgr_time)
layH_ctrl_time.addWidget(self.cmb_mode_spgr_time)
layH_ctrl_time.addWidget(self.lbl_byfs_spgr_time)
layH_ctrl_time.addWidget(self.chk_byfs_spgr_time)
layH_ctrl_time.addStretch(2)
layH_ctrl_time.addWidget(self.chk_fx_limits)
layH_ctrl_time.addStretch(10)
#layH_ctrl_time.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_time = QWidget(self)
self.wdg_ctrl_time.setLayout(layH_ctrl_time)
# ---- end time domain ------------------
# ---------------------------------------------------------------
# Controls for frequency domain
# ---------------------------------------------------------------
lbl_plt_freq_title = QLabel("<b>View:</b>", self)
self.lbl_plt_freq_stim = QLabel(to_html("Stimulus X", frmt='bi'), self)
self.cmb_plt_freq_stim = QComboBox(self)
self.cmb_plt_freq_stim.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_freq_stim, self.plt_freq_stim)
self.cmb_plt_freq_stim.setToolTip("<span>Plot style for stimulus.</span>")
self.lbl_plt_freq_stmq = QLabel(to_html(" Fixp. Stim. X_Q", frmt='bi'), self)
self.cmb_plt_freq_stmq = QComboBox(self)
self.cmb_plt_freq_stmq.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_freq_stmq, self.plt_freq_stmq)
self.cmb_plt_freq_stmq.setToolTip("<span>Plot style for <em>fixpoint</em> (quantized) stimulus.</span>")
lbl_plt_freq_resp = QLabel(to_html(" Response Y", frmt='bi'), self)
self.cmb_plt_freq_resp = QComboBox(self)
self.cmb_plt_freq_resp.addItems(plot_styles_list)
qset_cmb_box(self.cmb_plt_freq_resp, self.plt_freq_resp)
self.cmb_plt_freq_resp.setToolTip("<span>Plot style for response.</span>")
lbl_log_freq = QLabel(to_html("dB", frmt='b'), self)
self.chk_log_freq = QCheckBox(self)
self.chk_log_freq.setObjectName("chk_log_freq")
self.chk_log_freq.setToolTip("<span>Logarithmic scale for y-axis.</span>")
self.chk_log_freq.setChecked(True)
self.lbl_log_bottom_freq = QLabel(to_html("min =", frmt='bi'), self)
self.lbl_log_bottom_freq.setVisible(self.chk_log_freq.isChecked())
self.led_log_bottom_freq = QLineEdit(self)
self.led_log_bottom_freq.setText(str(self.bottom_f))
self.led_log_bottom_freq.setToolTip("<span>Minimum display value for log. scale.</span>")
self.led_log_bottom_freq.setVisible(self.chk_log_freq.isChecked())
if not self.chk_log_freq.isChecked():
self.bottom_f = 0
lbl_re_im_freq = QLabel(to_html("Re / Im", frmt='b'), self)
self.chk_re_im_freq = QCheckBox(self)
self.chk_re_im_freq.setObjectName("chk_re_im_freq")
self.chk_re_im_freq.setToolTip("<span>Show real and imaginary part of spectrum</span>")
self.chk_re_im_freq.setChecked(False)
self.lbl_win_fft = QLabel(to_html("Window", frmt='bi'), self)
self.cmb_win_fft = QComboBox(self)
self.cmb_win_fft.addItems(get_window_names())
self.cmb_win_fft.setToolTip("FFT window type.")
qset_cmb_box(self.cmb_win_fft, self.window_name)
self.cmb_win_fft_variant = QComboBox(self)
self.cmb_win_fft_variant.setToolTip("FFT window variant.")
self.cmb_win_fft_variant.setVisible(False)
self.lblWinPar1 = QLabel("Param1")
self.ledWinPar1 = QLineEdit(self)
self.ledWinPar1.setText("1")
self.ledWinPar1.setObjectName("ledWinPar1")
self.lblWinPar2 = QLabel("Param2")
self.ledWinPar2 = QLineEdit(self)
self.ledWinPar2.setText("2")
self.ledWinPar2.setObjectName("ledWinPar2")
self.chk_Hf = QCheckBox(self)
self.chk_Hf.setObjectName("chk_Hf")
self.chk_Hf.setToolTip("<span>Show ideal frequency response, calculated "
"from the filter coefficients.</span>")
self.chk_Hf.setChecked(False)
self.chk_Hf_lbl = QLabel(to_html("H_id (f)", frmt="bi"), self)
lbl_show_info_freq = QLabel(to_html("Info", frmt='b'), self)
self.chk_show_info_freq = QCheckBox(self)
self.chk_show_info_freq.setObjectName("chk_show_info_freq")
self.chk_show_info_freq.setToolTip("<span>Show infos about signal power "
"and window properties.</span>")
self.chk_show_info_freq.setChecked(False)
layH_ctrl_freq = QHBoxLayout()
layH_ctrl_freq.addWidget(lbl_plt_freq_title)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(self.lbl_plt_freq_stim)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_stim)
#
layH_ctrl_freq.addWidget(self.lbl_plt_freq_stmq)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_stmq)
#
layH_ctrl_freq.addWidget(lbl_plt_freq_resp)
layH_ctrl_freq.addWidget(self.cmb_plt_freq_resp)
#
layH_ctrl_freq.addWidget(self.chk_Hf_lbl)
layH_ctrl_freq.addWidget(self.chk_Hf)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(lbl_log_freq)
layH_ctrl_freq.addWidget(self.chk_log_freq)
layH_ctrl_freq.addWidget(self.lbl_log_bottom_freq)
layH_ctrl_freq.addWidget(self.led_log_bottom_freq)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(lbl_re_im_freq)
layH_ctrl_freq.addWidget(self.chk_re_im_freq)
layH_ctrl_freq.addStretch(2)
layH_ctrl_freq.addWidget(self.lbl_win_fft)
layH_ctrl_freq.addWidget(self.cmb_win_fft)
layH_ctrl_freq.addWidget(self.cmb_win_fft_variant)
layH_ctrl_freq.addWidget(self.lblWinPar1)
layH_ctrl_freq.addWidget(self.ledWinPar1)
layH_ctrl_freq.addWidget(self.lblWinPar2)
layH_ctrl_freq.addWidget(self.ledWinPar2)
layH_ctrl_freq.addStretch(1)
layH_ctrl_freq.addWidget(lbl_show_info_freq)
layH_ctrl_freq.addWidget(self.chk_show_info_freq)
layH_ctrl_freq.addStretch(10)
#layH_ctrl_freq.setContentsMargins(*params['wdg_margins'])
self.wdg_ctrl_freq = QWidget(self)
self.wdg_ctrl_freq.setLayout(layH_ctrl_freq)
# ---- end Frequency Domain ------------------
# ---------------------------------------------------------------
# Controls for stimuli
# ---------------------------------------------------------------
lbl_title_stim = QLabel("<b>Stimulus:</b>", self)
self.lblStimulus = QLabel(to_html("Type", frmt='bi'), self)
self.cmbStimulus = QComboBox(self)
self.cmbStimulus.addItems(["None","Impulse","Step","StepErr","Cos","Sine", "Chirp",
"Triang","Saw","Rect","Comb","AM","PM / FM","Formula"])
self.cmbStimulus.setToolTip("Stimulus type.")
qset_cmb_box(self.cmbStimulus, self.stim)
self.chk_stim_bl = QCheckBox("BL", self)
self.chk_stim_bl.setToolTip("<span>The signal is bandlimited to the Nyquist frequency "
"to avoid aliasing. However, it is much slower to generate "
"than the regular version.</span>")
self.chk_stim_bl.setChecked(True)
self.chk_stim_bl.setObjectName("stim_bl")
self.cmbChirpMethod = QComboBox(self)
for t in [("Lin","Linear"),("Square","Quadratic"),("Log", "Logarithmic"), ("Hyper", "Hyperbolic")]:
self.cmbChirpMethod.addItem(*t)
qset_cmb_box(self.cmbChirpMethod, self.chirp_method, data=False)
self.chk_scale_impz_f = QCheckBox("Scale", self)
self.chk_scale_impz_f.setToolTip("<span>Scale the FFT of the impulse response with <i>N<sub>FFT</sub></i> "
"so that it has the same magnitude as |H(f)|. DC and Noise need to be "
"turned off.</span>")
self.chk_scale_impz_f.setChecked(True)
self.chk_scale_impz_f.setObjectName("scale_impz_f")
self.lblDC = QLabel(to_html("DC =", frmt='bi'), self)
self.ledDC = QLineEdit(self)
self.ledDC.setText(str(self.DC))
self.ledDC.setToolTip("DC Level")
self.ledDC.setObjectName("stimDC")
layHCmbStim = QHBoxLayout()
layHCmbStim.addWidget(self.cmbStimulus)
layHCmbStim.addWidget(self.chk_stim_bl)
layHCmbStim.addWidget(self.chk_scale_impz_f)
layHCmbStim.addWidget(self.cmbChirpMethod)
#----------------------------------------------
self.lblAmp1 = QLabel(to_html(" A_1", frmt='bi') + " =", self)
self.ledAmp1 = QLineEdit(self)
self.ledAmp1.setText(str(self.A1))
self.ledAmp1.setToolTip("Stimulus amplitude, complex values like 3j - 1 are allowed")
self.ledAmp1.setObjectName("stimAmp1")
self.lblAmp2 = QLabel(to_html(" A_2", frmt='bi') + " =", self)
self.ledAmp2 = QLineEdit(self)
self.ledAmp2.setText(str(self.A2))
self.ledAmp2.setToolTip("Stimulus amplitude 2, complex values like 3j - 1 are allowed")
self.ledAmp2.setObjectName("stimAmp2")
#----------------------------------------------
self.lblPhi1 = QLabel(to_html(" φ_1", frmt='bi') + " =", self)
self.ledPhi1 = QLineEdit(self)
self.ledPhi1.setText(str(self.phi1))
self.ledPhi1.setToolTip("Stimulus phase")
self.ledPhi1.setObjectName("stimPhi1")
self.lblPhU1 = QLabel(to_html("°", frmt='b'), self)
self.lblPhi2 = QLabel(to_html(" φ_2", frmt='bi') + " =", self)
self.ledPhi2 = QLineEdit(self)
self.ledPhi2.setText(str(self.phi2))
self.ledPhi2.setToolTip("Stimulus phase 2")
self.ledPhi2.setObjectName("stimPhi2")
self.lblPhU2 = QLabel(to_html("°", frmt='b'), self)
#----------------------------------------------
self.lblFreq1 = QLabel(to_html(" f_1", frmt='bi') + " =", self)
self.ledFreq1 = QLineEdit(self)
self.ledFreq1.setText(str(self.f1))
self.ledFreq1.setToolTip("Stimulus frequency 1")
self.ledFreq1.setObjectName("stimFreq1")
self.lblFreqUnit1 = QLabel("f_S", self)
self.lblFreq2 = QLabel(to_html(" f_2", frmt='bi') + " =", self)
self.ledFreq2 = QLineEdit(self)
self.ledFreq2.setText(str(self.f2))
self.ledFreq2.setToolTip("Stimulus frequency 2")
self.ledFreq2.setObjectName("stimFreq2")
self.lblFreqUnit2 = QLabel("f_S", self)
#----------------------------------------------
self.lblNoise = QLabel(to_html(" Noise", frmt='bi'), self)
self.cmbNoise = QComboBox(self)
self.cmbNoise.addItems(["None","Gauss","Uniform","PRBS"])
self.cmbNoise.setToolTip("Type of additive noise.")
qset_cmb_box(self.cmbNoise, self.noise)
self.lblNoi = QLabel("not initialized", self)
self.ledNoi = QLineEdit(self)
self.ledNoi.setText(str(self.noi))
self.ledNoi.setToolTip("not initialized")
self.ledNoi.setObjectName("stimNoi")
layGStim = QGridLayout()
layGStim.addWidget(self.lblStimulus, 0, 0)
layGStim.addWidget(self.lblDC, 1, 0)
layGStim.addLayout(layHCmbStim, 0, 1)
layGStim.addWidget(self.ledDC, 1, 1)
layGStim.addWidget(self.lblAmp1, 0, 2)
layGStim.addWidget(self.lblAmp2, 1, 2)
layGStim.addWidget(self.ledAmp1, 0, 3)
layGStim.addWidget(self.ledAmp2, 1, 3)
layGStim.addWidget(self.lblPhi1, 0, 4)
layGStim.addWidget(self.lblPhi2, 1, 4)
layGStim.addWidget(self.ledPhi1, 0, 5)
layGStim.addWidget(self.ledPhi2, 1, 5)
layGStim.addWidget(self.lblPhU1, 0, 6)
layGStim.addWidget(self.lblPhU2, 1, 6)
layGStim.addWidget(self.lblFreq1, 0, 7)
layGStim.addWidget(self.lblFreq2, 1, 7)
layGStim.addWidget(self.ledFreq1, 0, 8)
layGStim.addWidget(self.ledFreq2, 1, 8)
layGStim.addWidget(self.lblFreqUnit1, 0, 9)
layGStim.addWidget(self.lblFreqUnit2, 1, 9)
layGStim.addWidget(self.lblNoise, 0, 10)
layGStim.addWidget(self.lblNoi, 1, 10)
layGStim.addWidget(self.cmbNoise, 0, 11)
layGStim.addWidget(self.ledNoi, 1, 11)
#----------------------------------------------
self.lblStimFormula = QLabel(to_html("x =", frmt='bi'), self)
self.ledStimFormula = QLineEdit(self)
self.ledStimFormula.setText(str(self.stim_formula))
self.ledStimFormula.setToolTip("<span>Enter formula for stimulus in numexpr syntax"
"</span>")
self.ledStimFormula.setObjectName("stimFormula")
layH_ctrl_stim_formula = QHBoxLayout()
layH_ctrl_stim_formula.addWidget(self.lblStimFormula)
layH_ctrl_stim_formula.addWidget(self.ledStimFormula,10)
#----------------------------------------------
#layG_ctrl_stim = QGridLayout()
layH_ctrl_stim_par = QHBoxLayout()
layH_ctrl_stim_par.addLayout(layGStim)
layV_ctrl_stim = QVBoxLayout()
layV_ctrl_stim.addLayout(layH_ctrl_stim_par)
layV_ctrl_stim.addLayout(layH_ctrl_stim_formula)
layH_ctrl_stim = QHBoxLayout()
layH_ctrl_stim.addWidget(lbl_title_stim)
layH_ctrl_stim.addStretch(1)
layH_ctrl_stim.addLayout(layV_ctrl_stim)
layH_ctrl_stim.addStretch(10)
self.wdg_ctrl_stim = QWidget(self)
self.wdg_ctrl_stim.setLayout(layH_ctrl_stim)
# --------- end stimuli ---------------------------------
# frequency widgets require special handling as they are scaled with f_s
self.ledFreq1.installEventFilter(self)
self.ledFreq2.installEventFilter(self)
#----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
#----------------------------------------------------------------------
# --- run control ---
self.led_N_start.editingFinished.connect(self.update_N)
self.led_N_points.editingFinished.connect(self.update_N)
# --- frequency control ---
# careful! currentIndexChanged passes the current index to _update_win_fft
self.cmb_win_fft.currentIndexChanged.connect(self._update_win_fft)
self.ledWinPar1.editingFinished.connect(self._read_param1)
self.ledWinPar2.editingFinished.connect(self._read_param2)
# --- stimulus control ---
self.chk_stim_options.clicked.connect(self._show_stim_options)
self.chk_stim_bl.clicked.connect(self._enable_stim_widgets)
self.cmbStimulus.currentIndexChanged.connect(self._enable_stim_widgets)
self.cmbNoise.currentIndexChanged.connect(self._update_noi)
self.ledNoi.editingFinished.connect(self._update_noi)
self.ledAmp1.editingFinished.connect(self._update_amp1)
self.ledAmp2.editingFinished.connect(self._update_amp2)
self.ledPhi1.editingFinished.connect(self._update_phi1)
self.ledPhi2.editingFinished.connect(self._update_phi2)
self.cmbChirpMethod.currentIndexChanged.connect(self._update_chirp_method)
self.ledDC.editingFinished.connect(self._update_DC)
self.ledStimFormula.editingFinished.connect(self._update_stim_formula)
#------------------------------------------------------------------------------
def eventFilter(self, source, event):
"""
Filter all events generated by the monitored widgets. Source and type
of all events generated by monitored objects are passed to this eventFilter,
evaluated and passed on to the next hierarchy level.
- When a QLineEdit widget gains input focus (``QEvent.FocusIn``), display
the stored value from filter dict with full precision
- When a key is pressed inside the text field, set the `spec_edited` flag
to True.
- When a QLineEdit widget loses input focus (``QEvent.FocusOut``), store
current value normalized to f_S with full precision (only if
``spec_edited == True``) and display the stored value in selected format
"""
def _store_entry(source):
if self.spec_edited:
if source.objectName() == "stimFreq1":
self.f1 = safe_eval(source.text(), self.f1 * fb.fil[0]['f_S'],
return_type='float') / fb.fil[0]['f_S']
source.setText(str(params['FMT'].format(self.f1 * fb.fil[0]['f_S'])))
elif source.objectName() == "stimFreq2":
self.f2 = safe_eval(source.text(), self.f2 * fb.fil[0]['f_S'],
return_type='float') / fb.fil[0]['f_S']
source.setText(str(params['FMT'].format(self.f2 * fb.fil[0]['f_S'])))
self.spec_edited = False # reset flag
self.sig_tx.emit({'sender':__name__, 'ui_changed':'stim'})
# if isinstance(source, QLineEdit):
# if source.objectName() in {"stimFreq1","stimFreq2"}:
if event.type() in {QEvent.FocusIn,QEvent.KeyPress, QEvent.FocusOut}:
if event.type() == QEvent.FocusIn:
self.spec_edited = False
self.load_fs()
elif event.type() == QEvent.KeyPress:
self.spec_edited = True # entry has been changed
key = event.key()
if key in {Qt.Key_Return, Qt.Key_Enter}:
_store_entry(source)
elif key == Qt.Key_Escape: # revert changes
self.spec_edited = False
if source.objectName() == "stimFreq1":
source.setText(str(params['FMT'].format(self.f1 * fb.fil[0]['f_S'])))
elif source.objectName() == "stimFreq2":
source.setText(str(params['FMT'].format(self.f2 * fb.fil[0]['f_S'])))
elif event.type() == QEvent.FocusOut:
_store_entry(source)
# Call base class method to continue normal event processing:
return super(PlotImpz_UI, self).eventFilter(source, event)
#-------------------------------------------------------------
def _show_stim_options(self):
"""
Hide / show panel with stimulus options
"""
self.wdg_ctrl_stim.setVisible(self.chk_stim_options.isChecked())
def _enable_stim_widgets(self):
""" Enable / disable widgets depending on the selected stimulus"""
self.stim = qget_cmb_box(self.cmbStimulus, data=False)
f1_en = self.stim in {"Cos","Sine","Chirp","PM / FM","AM","Formula","Rect","Saw","Triang","Comb"}
f2_en = self.stim in {"Cos","Sine","Chirp","PM / FM","AM","Formula"}
dc_en = self.stim not in {"Step", "StepErr"}
self.chk_stim_bl.setVisible(self.stim in {"Triang", "Saw", "Rect"})
self.lblAmp1.setVisible(self.stim != "None")
self.ledAmp1.setVisible(self.stim != "None")
self.chk_scale_impz_f.setVisible(self.stim == 'Impulse')
self.chk_scale_impz_f.setEnabled((self.noi == 0 or self.cmbNoise.currentText() == 'None')\
and self.DC == 0)
self.cmbChirpMethod.setVisible(self.stim == 'Chirp')
self.lblPhi1.setVisible(f1_en)
self.ledPhi1.setVisible(f1_en)
self.lblPhU1.setVisible(f1_en)
self.lblFreq1.setVisible(f1_en)
self.ledFreq1.setVisible(f1_en)
self.lblFreqUnit1.setVisible(f1_en)
self.lblFreq2.setVisible(f2_en)
self.ledFreq2.setVisible(f2_en)
self.lblFreqUnit2.setVisible(f2_en)
self.lblAmp2.setVisible(f2_en and self.stim != "Chirp")
self.ledAmp2.setVisible(f2_en and self.stim != "Chirp")
self.lblPhi2.setVisible(f2_en and self.stim != "Chirp")
self.ledPhi2.setVisible(f2_en and self.stim != "Chirp")
self.lblPhU2.setVisible(f2_en and self.stim != "Chirp")
self.lblDC.setVisible(dc_en)
self.ledDC.setVisible(dc_en)
self.lblStimFormula.setVisible(self.stim == "Formula")
self.ledStimFormula.setVisible(self.stim == "Formula")
self.sig_tx.emit({'sender':__name__, 'ui_changed':'stim'})
#-------------------------------------------------------------
def load_fs(self):
"""
Reload sampling frequency from filter dictionary and transform
the displayed frequency spec input fields according to the units
setting (i.e. f_S). Spec entries are always stored normalized w.r.t. f_S
in the dictionary; when f_S or the unit are changed, only the displayed values
of the frequency entries are updated, not the dictionary!
load_fs() is called during init and when the frequency unit or the
sampling frequency have been changed.
It should be called when sigSpecsChanged or sigFilterDesigned is emitted
at another place, indicating that a reload is required.
"""
# recalculate displayed freq spec values for (maybe) changed f_S
if self.ledFreq1.hasFocus():
# widget has focus, show full precision
self.ledFreq1.setText(str(self.f1 * fb.fil[0]['f_S']))
elif self.ledFreq2.hasFocus():
# widget has focus, show full precision
self.ledFreq2.setText(str(self.f2 * fb.fil[0]['f_S']))
else:
# widgets have no focus, round the display
self.ledFreq1.setText(
str(params['FMT'].format(self.f1 * fb.fil[0]['f_S'])))
self.ledFreq2.setText(
str(params['FMT'].format(self.f2 * fb.fil[0]['f_S'])))
def _update_amp1(self):
""" Update value for self.A1 from QLineEditWidget"""
self.A1 = safe_eval(self.ledAmp1.text(), self.A1, return_type='cmplx')
self.ledAmp1.setText(str(self.A1))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'a1'})
def _update_amp2(self):
""" Update value for self.A2 from the QLineEditWidget"""
self.A2 = safe_eval(self.ledAmp2.text(), self.A2, return_type='cmplx')
self.ledAmp2.setText(str(self.A2))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'a2'})
def _update_phi1(self):
""" Update value for self.phi1 from QLineEditWidget"""
self.phi1 = safe_eval(self.ledPhi1.text(), self.phi1, return_type='float')
self.ledPhi1.setText(str(self.phi1))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'phi1'})
def _update_phi2(self):
""" Update value for self.phi2 from the QLineEditWidget"""
self.phi2 = safe_eval(self.ledPhi2.text(), self.phi2, return_type='float')
self.ledPhi2.setText(str(self.phi2))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'phi2'})
def _update_chirp_method(self):
""" Update value for self.chirp_method from the QLineEditWidget"""
self.chirp_method = qget_cmb_box(self.cmbChirpMethod) # read current data string
self.sig_tx.emit({'sender':__name__, 'ui_changed':'chirp_method'})
def _update_noi(self):
""" Update type + value + label for self.noi for noise"""
self.noise = qget_cmb_box(self.cmbNoise, data=False).lower()
self.lblNoi.setVisible(self.noise!='none')
self.ledNoi.setVisible(self.noise!='none')
if self.noise!='none':
self.noi = safe_eval(self.ledNoi.text(), 0, return_type='cmplx')
self.ledNoi.setText(str(self.noi))
if self.noise == 'gauss':
self.lblNoi.setText(to_html(" σ =", frmt='bi'))
self.ledNoi.setToolTip("<span>Standard deviation of statistical process,"
"noise power is <i>P</i> = σ<sup>2</sup></span>")
elif self.noise == 'uniform':
self.lblNoi.setText(to_html(" Δ =", frmt='bi'))
self.ledNoi.setToolTip("<span>Interval size for uniformly distributed process "
"(e.g. quantization step size for quantization noise), "
"centered around 0. Noise power is "
"<i>P</i> = Δ<sup>2</sup>/12.</span>")
elif self.noise == 'prbs':
self.lblNoi.setText(to_html(" A =", frmt='bi'))
self.ledNoi.setToolTip("<span>Amplitude of bipolar Pseudorandom Binary Sequence. "
"Noise power is <i>P</i> = A<sup>2</sup>.</span>")
self.sig_tx.emit({'sender':__name__, 'ui_changed':'noi'})
def _update_DC(self):
""" Update value for self.DC from the QLineEditWidget"""
self.DC = safe_eval(self.ledDC.text(), 0, return_type='cmplx')
self.ledDC.setText(str(self.DC))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'dc'})
def _update_stim_formula(self):
"""Update string with formula to be evaluated by numexpr"""
self.stim_formula = self.ledStimFormula.text().strip()
self.ledStimFormula.setText(str(self.stim_formula))
self.sig_tx.emit({'sender':__name__, 'ui_changed':'stim_formula'})
# -------------------------------------------------------------------------
def update_N(self, emit=True):
# called directly from impz or locally
# between local triggering and updates upstream
"""
Update values for self.N and self.N_start from the QLineEditWidget,
update the window and fire "ui_changed"
"""
if not isinstance(emit, bool):
logger.error("update N: emit={0}".format(emit))
self.N_start = safe_eval(self.led_N_start.text(), self.N_start, return_type='int', sign='poszero')
self.led_N_start.setText(str(self.N_start)) # update widget
self.N_user = safe_eval(self.led_N_points.text(), self.N_user, return_type='int', sign='poszero')
if self.N_user == 0: # automatic calculation
self.N = self.calc_n_points(self.N_user) # widget remains set to 0
self.led_N_points.setText("0") # update widget
else:
self.N = self.N_user
self.led_N_points.setText(str(self.N)) # update widget
self.N_end = self.N + self.N_start # total number of points to be calculated: N + N_start
# FFT window needs to be updated due to changed number of data points
self._update_win_fft(emit=False) # don't emit anything here
if emit:
self.sig_tx.emit({'sender':__name__, 'ui_changed':'N'})
def _read_param1(self):
"""Read out textbox when editing is finished and update dict and fft window"""
param = safe_eval(self.ledWinPar1.text(), self.win_dict['par'][0]['val'],
return_type='float')
if param < self.win_dict['par'][0]['min']:
param = self.win_dict['par'][0]['min']
elif param > self.win_dict['par'][0]['max']:
param = self.win_dict['par'][0]['max']
self.ledWinPar1.setText(str(param))
self.win_dict['par'][0]['val'] = param
self._update_win_fft()
def _read_param2(self):
"""Read out textbox when editing is finished and update dict and fft window"""
param = safe_eval(self.ledWinPar2.text(), self.win_dict['par'][1]['val'],
return_type='float')
if param < self.win_dict['par'][1]['min']:
param = self.win_dict['par'][1]['min']
elif param > self.win_dict['par'][1]['max']:
param = self.win_dict['par'][1]['max']
self.ledWinPar2.setText(str(param))
self.win_dict['par'][1]['val'] = param
self._update_win_fft()
#------------------------------------------------------------------------------
def _update_win_fft(self, arg=None, emit=True):
"""
Update window type for FFT with different arguments:
- signal-slot connection to combo-box -> index (int), absorbed by `arg`
emit is not set -> emit=True
- called by _read_param() -> empty -> emit=True
- called by update_N(emit=False)
"""
if not isinstance(emit, bool):
logger.error("update win: emit={0}".format(emit))
self.window_name = qget_cmb_box(self.cmb_win_fft, data=False)
self.win = calc_window_function(self.win_dict, self.window_name,
N=self.N, sym=False)
n_par = self.win_dict['n_par']
self.lblWinPar1.setVisible(n_par > 0)
self.ledWinPar1.setVisible(n_par > 0)
self.lblWinPar2.setVisible(n_par > 1)
self.ledWinPar2.setVisible(n_par > 1)
if n_par > 0:
self.lblWinPar1.setText(to_html(self.win_dict['par'][0]['name'] + " =", frmt='bi'))
self.ledWinPar1.setText(str(self.win_dict['par'][0]['val']))
self.ledWinPar1.setToolTip(self.win_dict['par'][0]['tooltip'])
if n_par > 1:
self.lblWinPar2.setText(to_html(self.win_dict['par'][1]['name'] + " =", frmt='bi'))
self.ledWinPar2.setText(str(self.win_dict['par'][1]['val']))
self.ledWinPar2.setToolTip(self.win_dict['par'][1]['tooltip'])
self.nenbw = self.N * np.sum(np.square(self.win)) / (np.square(np.sum(self.win)))
self.cgain = np.sum(self.win) / self.N # coherent gain
self.win /= self.cgain # correct gain for periodic signals
# only emit a signal for local triggers to prevent infinite loop:
# - signal-slot connection passes a bool or an integer
# - local function calls don't pass anything
if emit is True:
self.sig_tx.emit({'sender':__name__, 'ui_changed':'win'})
# ... but always notify the FFT widget via sig_tx_fft
self.sig_tx_fft.emit({'sender':__name__, 'view_changed':'win'})
#------------------------------------------------------------------------------
def show_fft_win(self):
"""
Pop-up FFT window
"""
if self.but_fft_win.isChecked():
qstyle_widget(self.but_fft_win, "changed")
else:
qstyle_widget(self.but_fft_win, "normal")
if self.fft_window is None: # no handle to the window? Create a new instance
if self.but_fft_win.isChecked():
# Important: Handle to window must be class attribute otherwise it
# (and the attached window) is deleted immediately when it goes out of scope
self.fft_window = Plot_FFT_win(self, win_dict=self.win_dict, sym=False,
title="pyFDA Spectral Window Viewer")
self.sig_tx_fft.connect(self.fft_window.sig_rx)
self.fft_window.sig_tx.connect(self.close_fft_win)
self.fft_window.show() # modeless i.e. non-blocking popup window
else:
if not self.but_fft_win.isChecked():
if self.fft_window is None:
logger.warning("FFT window is already closed!")
else:
self.fft_window.close()
def close_fft_win(self):
self.fft_window = None
self.but_fft_win.setChecked(False)
qstyle_widget(self.but_fft_win, "normal")
#------------------------------------------------------------------------------
def calc_n_points(self, N_user = 0):
"""
Calculate number of points to be displayed, depending on type of filter
(FIR, IIR) and user input. If the user selects 0 points, the number is
calculated automatically.
An improvement would be to calculate the dominant pole and the corresponding
settling time.
"""
if N_user == 0: # set number of data points automatically
if fb.fil[0]['ft'] == 'IIR':
N = 100
else:
N = min(len(fb.fil[0]['ba'][0]),100) # FIR: N = number of coefficients (max. 100)
else:
N = N_user
return N
class Input_Fixpoint_Specs(QWidget):
"""
Create the widget that holds the dynamically loaded fixpoint filter ui
"""
# emit a signal when the image has been resized
sig_resize = pyqtSignal()
# incoming from subwidgets -> process_sig_rx_local
sig_rx_local = pyqtSignal(object)
# incoming, connected to input_tab_widget.sig_rx
sig_rx = pyqtSignal(object)
# outcgoing
sig_tx = pyqtSignal(object)
def __init__(self, parent):
super(Input_Fixpoint_Specs, self).__init__(parent)
self.tab_label = 'Fixpoint'
self.tool_tip = (
"<span>Select a fixpoint implementation for the filter,"
" simulate it or generate a Verilog netlist.</span>")
self.parent = parent
self.fx_path = os.path.realpath(
os.path.join(dirs.INSTALL_DIR, 'fixpoint_widgets'))
self.no_fx_filter_img = os.path.join(self.fx_path, "no_fx_filter.png")
if not os.path.isfile(self.no_fx_filter_img):
logger.error("Image {0:s} not found!".format(
self.no_fx_filter_img))
self.default_fx_img = os.path.join(self.fx_path, "default_fx_img.png")
if not os.path.isfile(self.default_fx_img):
logger.error("Image {0:s} not found!".format(self.default_fx_img))
if HAS_MIGEN:
self._construct_UI()
else:
self.state = "deactivated" # "invisible", "disabled"
#------------------------------------------------------------------------------
def process_sig_rx(self, dict_sig=None):
"""
Process signals coming in via subwidgets and sig_rx
Play PingPong with a stimulus & plot widget:
2. ``fx_sim_init()``: Request stimulus by sending 'fx_sim':'get_stimulus'
3. ``fx_sim_set_stimulus()``: Receive stimulus from widget in 'fx_sim':'send_stimulus'
and pass it to HDL object for simulation
4. Send back HDL response to widget via 'fx_sim':'set_response'
"""
logger.debug("process_sig_rx(): vis={0}\n{1}"\
.format(self.isVisible(), pprint_log(dict_sig)))
if dict_sig['sender'] == __name__:
logger.debug("Stopped infinite loop\n{0}".format(
pprint_log(dict_sig)))
return
elif 'data_changed' in dict_sig and dict_sig[
'data_changed'] == "filter_designed":
# New filter has been designed, update list of available filter topologies here
self._update_filter_cmb()
return
elif 'data_changed' in dict_sig or\
('view_changed' in dict_sig and dict_sig['view_changed'] == 'q_coeff'):
# update fields in the filter topology widget - wordlength may have
# been changed. Also set RUN button to "changed" in wdg_dict2ui()
self.wdg_dict2ui()
#self.sig_tx.emit({'sender':__name__, 'fx_sim':'specs_changed'})
elif 'fx_sim' in dict_sig:
if dict_sig['fx_sim'] == 'init':
if self.fx_wdg_found:
self.fx_sim_init()
else:
logger.error("No fixpoint widget found!")
qstyle_widget(self.butSimHDL, "error")
self.sig_tx.emit({'sender': __name__, 'fx_sim': 'error'})
elif dict_sig['fx_sim'] == 'send_stimulus':
self.fx_sim_set_stimulus(dict_sig)
elif dict_sig['fx_sim'] == 'specs_changed':
# fixpoint specification have been changed somewhere, update ui
# and set run button to "changed" in wdg_dict2ui()
self.wdg_dict2ui()
elif dict_sig['fx_sim'] == 'finish':
qstyle_widget(self.butSimHDL, "normal")
logger.info('Fixpoint simulation [{0:5.3g} ms]: Plotting finished'\
.format((time.process_time() - self.t_resp)*1000))
else:
logger.error('Unknown "fx_sim" command option "{0}"\n'
'\treceived from "{1}".'.format(
dict_sig['fx_sim'], dict_sig['sender']))
# ---- Process local widget signals
elif 'ui' in dict_sig:
if 'id' in dict_sig and dict_sig['id'] == 'w_input':
"""
Input fixpoint format has been changed or butLock has been clicked.
When I/O lock is active, copy input fixpoint word format to output
word format.
"""
if dict_sig[
'ui'] == 'butLock' and not self.wdg_w_input.butLock.isChecked(
):
# butLock was deactivitated, don't do anything
return
elif self.wdg_w_input.butLock.isChecked():
# but lock was activated or wordlength setting have been changed
fb.fil[0]['fxqc']['QO']['WI'] = fb.fil[0]['fxqc']['QI'][
'WI']
fb.fil[0]['fxqc']['QO']['WF'] = fb.fil[0]['fxqc']['QI'][
'WF']
fb.fil[0]['fxqc']['QO']['W'] = fb.fil[0]['fxqc']['QI']['W']
elif 'id' in dict_sig and dict_sig['id'] == 'w_output':
"""
Output fixpoint format has been changed. When I/O lock is active, copy
output fixpoint word format to input word format.
"""
if self.wdg_w_input.butLock.isChecked():
fb.fil[0]['fxqc']['QI']['WI'] = fb.fil[0]['fxqc']['QO'][
'WI']
fb.fil[0]['fxqc']['QI']['WF'] = fb.fil[0]['fxqc']['QO'][
'WF']
fb.fil[0]['fxqc']['QI']['W'] = fb.fil[0]['fxqc']['QO']['W']
elif 'id' in dict_sig and dict_sig['id'] in \
{'w_coeff', 'q_input', 'q_output', 'w_accu', 'q_accu'}:
pass # nothing to do for now
else:
if not "id" in dict_sig:
logger.warning("No id in dict_sig:\n{0}".format(
pprint_log(dict_sig)))
else:
logger.warning('Unknown id "{0}" in dict_sig:\n{1}'\
.format(dict_sig['id'], pprint_log(dict_sig)))
if not dict_sig['ui'] in {
'WI', 'WF', 'ovfl', 'quant', 'cmbW', 'butLock'
}:
logger.warning("Unknown value '{0}' for key 'ui'".format(
dict_sig['ui']))
self.wdg_dict2ui(
) # update wordlengths in UI and set RUN button to 'changed'
self.sig_tx.emit({'sender': __name__, 'fx_sim': 'specs_changed'})
return
#------------------------------------------------------------------------------
def _construct_UI(self):
"""
Intitialize the main GUI, consisting of:
- A combo box to select the filter topology and an image of the topology
- The input quantizer
- The UI of the fixpoint filter widget
- Simulation and export buttons
"""
#------------------------------------------------------------------------------
# Define frame and layout for the dynamically updated filter widget
# The actual filter widget is instantiated in self.set_fixp_widget() later on
self.layH_fx_wdg = QHBoxLayout()
#self.layH_fx_wdg.setContentsMargins(*params['wdg_margins'])
frmHDL_wdg = QFrame(self)
frmHDL_wdg.setLayout(self.layH_fx_wdg)
#frmHDL_wdg.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
#------------------------------------------------------------------------------
# Initialize fixpoint filter combobox, title and description
#------------------------------------------------------------------------------
self.cmb_wdg_fixp = QComboBox(self)
self.cmb_wdg_fixp.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.lblTitle = QLabel("not set", self)
self.lblTitle.setWordWrap(True)
self.lblTitle.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
layHTitle = QHBoxLayout()
layHTitle.addWidget(self.cmb_wdg_fixp)
layHTitle.addWidget(self.lblTitle)
self.frmTitle = QFrame(self)
self.frmTitle.setLayout(layHTitle)
self.frmTitle.setContentsMargins(*params['wdg_margins'])
#------------------------------------------------------------------------------
# Input and Output Quantizer
#------------------------------------------------------------------------------
# - instantiate widgets for input and output quantizer
# - pass the quantization (sub-?) dictionary to the constructor
#------------------------------------------------------------------------------
self.wdg_w_input = UI_W(self,
q_dict=fb.fil[0]['fxqc']['QI'],
id='w_input',
label='',
lock_visible=True)
self.wdg_w_input.sig_tx.connect(self.process_sig_rx)
cmb_q = ['round', 'floor', 'fix']
self.wdg_w_output = UI_W(self,
q_dict=fb.fil[0]['fxqc']['QO'],
id='w_output',
label='')
self.wdg_w_output.sig_tx.connect(self.process_sig_rx)
self.wdg_q_output = UI_Q(
self,
q_dict=fb.fil[0]['fxqc']['QO'],
id='q_output',
label='Output Format <i>Q<sub>Y </sub></i>:',
cmb_q=cmb_q,
cmb_ov=['wrap', 'sat'])
self.wdg_q_output.sig_tx.connect(self.sig_rx)
if HAS_DS:
cmb_q.append('dsm')
self.wdg_q_input = UI_Q(
self,
q_dict=fb.fil[0]['fxqc']['QI'],
id='q_input',
label='Input Format <i>Q<sub>X </sub></i>:',
cmb_q=cmb_q)
self.wdg_q_input.sig_tx.connect(self.sig_rx)
# Layout and frame for input quantization
layVQiWdg = QVBoxLayout()
layVQiWdg.addWidget(self.wdg_q_input)
layVQiWdg.addWidget(self.wdg_w_input)
frmQiWdg = QFrame(self)
#frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmQiWdg.setLayout(layVQiWdg)
frmQiWdg.setContentsMargins(*params['wdg_margins'])
# Layout and frame for output quantization
layVQoWdg = QVBoxLayout()
layVQoWdg.addWidget(self.wdg_q_output)
layVQoWdg.addWidget(self.wdg_w_output)
frmQoWdg = QFrame(self)
#frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmQoWdg.setLayout(layVQoWdg)
frmQoWdg.setContentsMargins(*params['wdg_margins'])
#------------------------------------------------------------------------------
# Dynamically updated image of filter topology
#------------------------------------------------------------------------------
# label is a placeholder for image
self.lbl_fixp_img = QLabel("img not set", self)
#self.lbl_fixp_img.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
self.embed_fixp_img(self.no_fx_filter_img)
layHImg = QHBoxLayout()
layHImg.setContentsMargins(0, 0, 0, 0)
layHImg.addWidget(self.lbl_fixp_img) #, Qt.AlignCenter)
self.frmImg = QFrame(self)
self.frmImg.setLayout(layHImg)
self.frmImg.setContentsMargins(*params['wdg_margins'])
self.resize_img()
#------------------------------------------------------------------------------
# Simulation and export Buttons
#------------------------------------------------------------------------------
self.butExportHDL = QPushButton(self)
self.butExportHDL.setToolTip(
"Export fixpoint filter in Verilog format.")
self.butExportHDL.setText("Create HDL")
self.butSimHDL = QPushButton(self)
self.butSimHDL.setToolTip("Start migen fixpoint simulation.")
self.butSimHDL.setText("Sim. HDL")
self.butSimFxPy = QPushButton(self)
self.butSimFxPy.setToolTip("Simulate filter with fixpoint effects.")
self.butSimFxPy.setText("Sim. FixPy")
self.layHHdlBtns = QHBoxLayout()
self.layHHdlBtns.addWidget(self.butSimFxPy)
self.layHHdlBtns.addWidget(self.butSimHDL)
self.layHHdlBtns.addWidget(self.butExportHDL)
# This frame encompasses the HDL buttons sim and convert
frmHdlBtns = QFrame(self)
#frmBtns.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
frmHdlBtns.setLayout(self.layHHdlBtns)
frmHdlBtns.setContentsMargins(*params['wdg_margins'])
# -------------------------------------------------------------------
# Top level layout
# -------------------------------------------------------------------
splitter = QSplitter(self)
splitter.setOrientation(Qt.Vertical)
splitter.addWidget(frmHDL_wdg)
splitter.addWidget(frmQoWdg)
splitter.addWidget(self.frmImg)
# setSizes uses absolute pixel values, but can be "misused" by specifying values
# that are way too large: in this case, the space is distributed according
# to the _ratio_ of the values:
splitter.setSizes([3000, 3000, 5000])
layVMain = QVBoxLayout()
layVMain.addWidget(self.frmTitle)
layVMain.addWidget(frmHdlBtns)
layVMain.addWidget(frmQiWdg)
layVMain.addWidget(splitter)
layVMain.addStretch()
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
#----------------------------------------------------------------------
# GLOBAL SIGNALS & SLOTs
#----------------------------------------------------------------------
self.sig_rx.connect(self.process_sig_rx)
#----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs & EVENTFILTERS
#----------------------------------------------------------------------
# monitor events and generate sig_resize event when resized
self.lbl_fixp_img.installEventFilter(self)
# ... then redraw image when resized
self.sig_resize.connect(self.resize_img)
self.cmb_wdg_fixp.currentIndexChanged.connect(self._update_fixp_widget)
self.butExportHDL.clicked.connect(self.exportHDL)
self.butSimHDL.clicked.connect(self.fx_sim_init)
#----------------------------------------------------------------------
inst_wdg_list = self._update_filter_cmb()
if len(inst_wdg_list) == 0:
logger.warning("No fixpoint filters found!")
else:
logger.debug("Imported {0:d} fixpoint filters:\n{1}".format(
len(inst_wdg_list.split("\n")) - 1, inst_wdg_list))
self._update_fixp_widget()
#------------------------------------------------------------------------------
def _update_filter_cmb(self):
"""
(Re-)Read list of available fixpoint filters for a given filter design
every time a new filter design is selected.
Then try to import the fixpoint designs in the list and populate the
fixpoint implementation combo box `self.cmb_wdg_fixp` when successfull.
"""
inst_wdg_str = "" # full names of successfully instantiated widgets for logging
last_fx_wdg = qget_cmb_box(
self.cmb_wdg_fixp, data=False) # remember last fx widget setting
self.cmb_wdg_fixp.clear()
fc = fb.fil[0]['fc']
if 'fix' in fb.filter_classes[fc]:
for class_name in fb.filter_classes[fc]['fix']: # get class name
try:
# construct module + class name
mod_class_name = fb.fixpoint_classes[class_name][
'mod'] + '.' + class_name
disp_name = fb.fixpoint_classes[class_name][
'name'] # # and display name
self.cmb_wdg_fixp.addItem(disp_name, mod_class_name)
inst_wdg_str += '\t' + class_name + ' : ' + mod_class_name + '\n'
except AttributeError as e:
logger.warning('Widget "{0}":\n{1}'.format(class_name, e))
self.embed_fixp_img(self.no_fx_filter_img)
continue
except KeyError as e:
logger.warning(
"No fixpoint filter for filter type {0} available.".
format(e))
self.embed_fixp_img(self.no_fx_filter_img)
continue
# restore last fxp widget if possible
idx = self.cmb_wdg_fixp.findText(last_fx_wdg)
# set to idx 0 if not found (returned -1)
self.cmb_wdg_fixp.setCurrentIndex(max(idx, 0))
else: # no fixpoint widget
self.embed_fixp_img(self.no_fx_filter_img)
return inst_wdg_str
#------------------------------------------------------------------------------
def eventFilter(self, source, event):
"""
Filter all events generated by monitored QLabel, only resize events are
processed here, generating a `sig_resize` signal. All other events
are passed on to the next hierarchy level.
"""
if event.type() == QEvent.Resize:
self.sig_resize.emit()
# Call base class method to continue normal event processing:
return super(Input_Fixpoint_Specs, self).eventFilter(source, event)
#------------------------------------------------------------------------------
def embed_fixp_img(self, img_file):
"""
Embed image as self.img_fixp, either in png or svg format
Parameters:
img_file: str
path and file name to image file
"""
if not os.path.isfile(img_file):
logger.warning("Image file {0} doesn't exist.".format(img_file))
img_file = self.default_fx_img
# _, file_extension = os.path.splitext(self.fx_wdg_inst.img_name)
_, file_extension = os.path.splitext(img_file)
if file_extension == '.png':
self.img_fixp = QPixmap(img_file)
#self.lbl_fixp_img.setPixmap(QPixmap(self.img_fixp)) # fixed size
# elif file_extension == '.svg':
# self.img_fixp = QtSvg.QSvgWidget(img_file)
else:
logger.error(
'Unknown file extension "{0}"!'.format(file_extension))
self.resize_img()
#------------------------------------------------------------------------------
def resize_img(self):
"""
Triggered when self (the widget) is resized, consequently the image
inside QLabel is resized to completely fill the label while keeping
the aspect ratio.
This doesn't really work at the moment.
"""
if hasattr(self.parent, "width"): # needed for module test
par_w, par_h = self.parent.width(), self.parent.height()
else:
par_w, par_h = 300, 700 # fixed size for module testself.lbl_img_fixp
lbl_w, lbl_h = self.lbl_fixp_img.width(), self.lbl_fixp_img.height()
img_w, img_h = self.img_fixp.width(), self.img_fixp.height()
if img_w > 10:
max_h = int(max(np.floor(img_h * par_w / img_w) - 15, 20))
else:
max_h = 200
logger.debug("img size: {0},{1}, frm size: {2},{3}, max_h: {4}".format(
img_w, img_h, par_w, par_h, max_h))
# The following doesn't work because the width of the parent widget can grow
# with the image size
# img_scaled = self.img_fixp.scaled(self.lbl_fixp_img.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
img_scaled = self.img_fixp.scaledToHeight(max_h,
Qt.SmoothTransformation)
#img_scaled = self.img_fixp.scaledToHeight(max_h)
self.lbl_fixp_img.setPixmap(img_scaled)
#------------------------------------------------------------------------------
def _update_fixp_widget(self):
"""
This method is called at the initialization of the widget and when
a new fixpoint filter implementation is selected from the combo box:
- Destruct old instance of fixpoint filter widget `self.fx_wdg_inst`
- Import and instantiate new fixpoint filter widget e.g. after changing the
filter topology as
- Try to load image for filter topology
- Update the UI of the widget
- Try to instantiate HDL filter as `self.fx_wdg_inst.fixp_filter` with
dummy data
"""
def _disable_fx_wdg(self):
if hasattr(
self, "fx_wdg_inst"
) and self.fx_wdg_inst is not None: # is a fixpoint widget loaded?
try:
self.layH_fx_wdg.removeWidget(
self.fx_wdg_inst) # remove widget from layout
self.fx_wdg_inst.deleteLater(
) # delete QWidget when scope has been left
except AttributeError as e:
logger.error("Destructing UI failed!\n{0}".format(e))
self.fx_wdg_found = False
self.butSimFxPy.setVisible(False)
self.butSimHDL.setEnabled(False)
self.butExportHDL.setEnabled(False)
#self.layH_fx_wdg.setVisible(False)
self.img_fixp = self.embed_fixp_img(self.no_fx_filter_img)
self.lblTitle.setText("")
self.fx_wdg_inst = None
# destruct old fixpoint widget instance
_disable_fx_wdg(self)
# instantiate new fixpoint widget class as self.fx_wdg_inst
cmb_wdg_fx_cur = qget_cmb_box(self.cmb_wdg_fixp, data=False)
if cmb_wdg_fx_cur: # at least one valid fixpoint widget found
self.fx_wdg_found = True
# get list [module name and path, class name]
fx_mod_class_name = qget_cmb_box(self.cmb_wdg_fixp,
data=True).rsplit('.', 1)
fx_mod = importlib.import_module(
fx_mod_class_name[0]) # get module
fx_wdg_class = getattr(fx_mod, fx_mod_class_name[1]) # get class
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
self.fx_wdg_inst = fx_wdg_class(
self) # instantiate the fixpoint widget
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
self.layH_fx_wdg.addWidget(self.fx_wdg_inst,
stretch=1) # and add it to layout
self.fx_wdg_inst.setVisible(True)
# Doesn't work at the moment, combo box becomes inaccessible
# try:
# self.fx_wdg_inst = fx_wdg_class(self) # instantiate the widget
# self.layH_fx_wdg.addWidget(self.fx_wdg_inst, stretch=1) # and add it to layout
# except KeyError as e:
# logger.warning('Key Error {0} in fixpoint filter \n{1}'\
# .format(e, fx_mod_name + "." + cmb_wdg_fx_cur))
# _disable_fx_wdg(self)
# return
self.wdg_dict2ui(
) # initialize the fixpoint subwidgets from the fxqc_dict
#---- connect signals to fx_wdg_inst ----
if hasattr(self.fx_wdg_inst, "sig_rx"):
self.sig_rx.connect(self.fx_wdg_inst.sig_rx)
if hasattr(self.fx_wdg_inst, "sig_tx"):
self.fx_wdg_inst.sig_tx.connect(self.sig_rx)
#---- get name of new fixpoint filter image ----
if not (hasattr(self.fx_wdg_inst, "img_name") and
self.fx_wdg_inst.img_name): # is an image name defined?
img_file = self.default_fx_img
else:
file_path = os.path.dirname(
fx_mod.__file__
) # get path of imported fixpoint widget and
img_file = os.path.join(file_path, self.fx_wdg_inst.img_name
) # construct full image name from it
#---- instantiate and scale graphic of filter topology ----
self.embed_fixp_img(img_file)
#---- set title and description for filter
self.lblTitle.setText(self.fx_wdg_inst.title)
#--- try to reference Python fixpoint filter instance -----
# if hasattr(self.fx_wdg_inst,'fxpy_filter'):
# self.fxpy_filter_inst = self.fx_wdg_inst.fxpy_filter
# self.butSimFxPy.setEnabled(True)
# else:
# self.butSimFxPy.setVisible(False)
#--- Check whether fixpoint widget contains HDL filters -----
if hasattr(self.fx_wdg_inst, 'fixp_filter'):
self.butExportHDL.setEnabled(
hasattr(self.fx_wdg_inst, "to_verilog"))
self.butSimHDL.setEnabled(hasattr(self.fx_wdg_inst, "run_sim"))
self.update_fxqc_dict()
self.sig_tx.emit({
'sender': __name__,
'fx_sim': 'specs_changed'
})
else:
self.butSimHDL.setEnabled(False)
self.butExportHDL.setEnabled(False)
else:
_disable_fx_wdg(self)
#------------------------------------------------------------------------------
def wdg_dict2ui(self):
"""
Trigger an update of the fixpoint widget UI when view (i.e. fixpoint
coefficient format) or data have been changed outside this class. Additionally,
pass the fixpoint quantization widget to update / restore other subwidget
settings.
Set the RUN button to "changed".
"""
# fb.fil[0]['fxqc']['QCB'].update({'scale':(1 << fb.fil[0]['fxqc']['QCB']['W'])})
self.wdg_q_input.dict2ui(fb.fil[0]['fxqc']['QI'])
self.wdg_q_output.dict2ui(fb.fil[0]['fxqc']['QO'])
self.wdg_w_input.dict2ui(fb.fil[0]['fxqc']['QI'])
self.wdg_w_output.dict2ui(fb.fil[0]['fxqc']['QO'])
if self.fx_wdg_found and hasattr(self.fx_wdg_inst, "dict2ui"):
self.fx_wdg_inst.dict2ui()
# dict_sig = {'sender':__name__, 'fx_sim':'specs_changed'}
# self.sig_tx.emit(dict_sig)
qstyle_widget(self.butSimHDL, "changed")
#------------------------------------------------------------------------------
def update_fxqc_dict(self):
"""
Update the fxqc dictionary before simulation / HDL generation starts.
"""
if self.fx_wdg_found:
# get a dict with the coefficients and fixpoint settings from fixpoint widget
if hasattr(self.fx_wdg_inst, "ui2dict"):
fb.fil[0]['fxqc'].update(self.fx_wdg_inst.ui2dict())
logger.debug("update fxqc: \n{0}".format(
pprint_log(fb.fil[0]['fxqc'])))
else:
logger.error("No fixpoint widget found!")
#------------------------------------------------------------------------------
def exportHDL(self):
"""
Synthesize HDL description of filter
"""
if not hasattr(self.fx_wdg_inst, 'construct_fixp_filter'):
logger.warning(
'Fixpoint widget has no method "construct_fixp_filter", aborting.'
)
return
dlg = QFD(self) # instantiate file dialog object
file_types = "Verilog (*.v)"
dlg.setDefaultSuffix(
'v'
) # needed for overwrite confirmation when name is entered without suffix
dlg.setWindowTitle('Export Vlog')
dlg.setNameFilter(file_types)
dlg.setDirectory(dirs.save_dir)
dlg.setAcceptMode(
QFD.AcceptSave) # set mode "save file" instead "open file"
dlg.setOption(QFD.DontConfirmOverwrite, False)
if dlg.exec_() == QFD.Accepted:
hdl_file = qstr(dlg.selectedFiles()[0])
# hdl_type = extract_file_ext(qstr(dlg.selectedNameFilter()))[0]
# =============================================================================
# # static method getSaveFileName_() is simple but unflexible
# hdl_file, hdl_filter = dlg.getSaveFileName_(
# caption="Save Verilog netlist as (this also defines the module name)",
# directory=dirs.save_dir, filter=file_types)
# hdl_file = qstr(hdl_file)
# if hdl_file != "": # "operation cancelled" returns an empty string
# # return '.v' or '.vhd' depending on filetype selection:
# # hdl_type = extract_file_ext(qstr(hdl_filter))[0]
# # sanitized dir + filename + suffix. The filename suffix is replaced
# # by `v` later.
# hdl_file = os.path.normpath(hdl_file) # complete path + file name
# =============================================================================
hdl_dir_name = os.path.dirname(
hdl_file) # extract the directory path
if not os.path.isdir(
hdl_dir_name): # create directory if it doesn't exist
os.mkdir(hdl_dir_name)
dirs.save_dir = hdl_dir_name # make this directory the new default / base dir
hdl_file_name = os.path.splitext(os.path.basename(hdl_file))[0]
hdl_full_name = os.path.join(hdl_dir_name, hdl_file_name + ".v")
vlog_mod_name = re.sub(
r'\W+', '',
hdl_file_name).lower() # remove all non-alphanumeric chars
logger.info(
'Creating hdl_file "{0}"\n\twith top level module "{1}"'.
format(hdl_full_name, vlog_mod_name))
try:
self.update_fxqc_dict()
self.fx_wdg_inst.construct_fixp_filter()
code = self.fx_wdg_inst.to_verilog(name=vlog_mod_name)
#logger.info(str(code)) # print verilog code to console
with io.open(hdl_full_name, 'w', encoding="utf8") as f:
f.write(str(code))
logger.info("HDL conversion finished!")
except (IOError, TypeError) as e:
logger.warning(e)
##------------------------------------------------------------------------------
# def fx_sim_py(self):
# """
# Start fix-point simulation: Send the ``fxqc_dict``
# containing all quantization information and request a stimulus signal
# Not implemented yet
# """
# try:
# logger.info("Started python fixpoint simulation")
# self.update_fxqc_dict()
# self.fxpyfilter.setup(fb.fil[0]['fxqc']) # setup filter instance
# dict_sig = {'sender':__name__, 'fx_sim':'get_stimulus'}
# self.sig_tx.emit(dict_sig)
#
# except AttributeError as e:
# logger.warning("Fixpoint stimulus generation failed:\n{0}".format(e))
# return
#------------------------------------------------------------------------------
def fx_sim_init(self):
"""
Initialize fix-point simulation:
- Update the `fxqc_dict` containing all quantization information
- Setup a filter instance for migen simulation
- Request a stimulus signal
"""
if not hasattr(self.fx_wdg_inst, 'construct_fixp_filter'):
logger.error(
'Fixpoint widget has no method "construct_fixp_filter", aborting.'
)
self.sig_tx.emit({'sender': __name__, 'fx_sim': 'error'})
return
try:
logger.info("Fixpoint simulation started")
self.t_start = time.process_time()
self.update_fxqc_dict()
self.fx_wdg_inst.construct_fixp_filter() # setup filter instance
dict_sig = {'sender': __name__, 'fx_sim': 'get_stimulus'}
self.sig_tx.emit(dict_sig)
except ValueError as e: # exception
logger.error(
'Fixpoint stimulus generation failed during "init" for dict\n{0}'
'\nwith "{1} "'.format(pprint_log(dict_sig), e))
return
#------------------------------------------------------------------------------
def fx_sim_set_stimulus(self, dict_sig):
"""
- Get fixpoint stimulus from `dict_sig` in integer format
- Pass it to the fixpoint filter and calculate the fixpoint response
- Send the reponse to the plotting widget
"""
try:
logger.debug(
'Starting fixpoint simulation with stimulus from "{0}":\n\tfx_stimulus:{1}'
'\n\tStimuli: Shape {2} of type "{3}"'.format(
dict_sig['sender'],
pprint_log(dict_sig['fx_stimulus'], tab=" "),
np.shape(dict_sig['fx_stimulus']),
dict_sig['fx_stimulus'].dtype,
))
self.t_stim = time.process_time()
logger.info("Fixpoint simulation [{0:5.3g} ms]: Stimuli generated"\
.format((self.t_stim-self.t_start)*1000))
# Run fixpoint simulation and return the results as integer values:
self.fx_results = self.fx_wdg_inst.run_sim(
dict_sig['fx_stimulus']) # Run the simulation
self.t_resp = time.process_time()
if len(self.fx_results) == 0:
logger.warning("Fixpoint simulation returned empty results!")
else:
#logger.debug("fx_results: {0}"\
# .format(pprint_log(self.fx_results, tab= " ")))
logger.debug('Fixpoint simulation successful for dict\n{0}'
'\tStimuli: Shape {1} of type "{2}"'
'\n\tResponse: Shape {3} of type "{4}"'\
.format(pprint_log(dict_sig),
np.shape(dict_sig['fx_stimulus']),
dict_sig['fx_stimulus'].dtype,
np.shape(self.fx_results),
type(self.fx_results)
))
logger.info('Fixpoint simulation [{0:5.3g} ms]: Response calculated'\
.format((self.t_resp - self.t_stim)*1000))
#TODO: fixed point / integer to float conversion?
#TODO: color push-button to show state of simulation
#TODO: add QTimer single shot
# self.timer_id = QtCore.QTimer()
# self.timer_id.setSingleShot(True)
# # kill simulation after some idle time, also add a button for this
# self.timer_id.timeout.connect(self.kill_sim)
except ValueError as e:
logger.error("Simulator error {0}".format(e))
self.fx_results = None
qstyle_widget(self.butSimHDL, "error")
self.sig_tx.emit({'sender': __name__, 'fx_sim': 'error'})
return
except AssertionError as e:
logger.error('Fixpoint simulation failed for dict\n{0}'
'\twith msg. "{1}"\n\tStimuli: Shape {2} of type "{3}"'
'\n\tResponse: Shape {4} of type "{5}"'\
.format(pprint_log(dict_sig), e,
np.shape(dict_sig['fx_stimulus']),
dict_sig['fx_stimulus'].dtype,
np.shape(self.fx_results),
type(self.fx_results)
))
self.fx_results = None
qstyle_widget(self.butSimHDL, "error")
self.sig_tx.emit({'sender': __name__, 'fx_sim': 'error'})
return
logger.debug("Sending fixpoint results")
dict_sig = {
'sender': __name__,
'fx_sim': 'set_results',
'fx_results': self.fx_results
}
self.sig_tx.emit(dict_sig)
qstyle_widget(self.butSimHDL, "normal")
return
