mirror of
https://github.com/f4exb/sdrangel.git
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752 lines
21 KiB
C++
752 lines
21 KiB
C++
// This file is part of LeanSDR Copyright (C) 2016-2018 <pabr@pabr.org>.
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// See the toplevel README for more information.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef LEANSDR_GUI_H
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#define LEANSDR_GUI_H
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#include <sys/time.h>
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#include "framework.h"
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namespace leansdr
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{
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//////////////////////////////////////////////////////////////////////
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// GUI blocks
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//////////////////////////////////////////////////////////////////////
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#ifdef GUI
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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static const int DEFAULT_GUI_DECIMATION = 64;
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struct gfx
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{
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Display *display;
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int screen;
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int w, h;
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Window window;
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GC gc;
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Pixmap dbuf;
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gfx(scheduler *sch, const char *name)
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{
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window_placement *wp;
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for (wp = sch->windows; wp && wp->name; ++wp)
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if (!strcmp(wp->name, name))
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break;
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if (wp && wp->name)
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init(wp->name, wp->x, wp->y, wp->w, wp->h);
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else
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{
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fprintf(stderr, "No placement hints for window '%s'\n", name);
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init(name, -1, -1, 320, 240);
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}
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}
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gfx(const char *name, int _x, int _y, int _w, int _h)
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{
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init(name, _x, _y, _w, _h);
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}
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void init(const char *name, int _x, int _y, int _w, int _h)
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{
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buttons = 0;
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clicks = 0;
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mmoved = false;
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w = _w;
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h = _h;
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display = XOpenDisplay(getenv("DISPLAY"));
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if (!display)
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fatal("display");
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screen = DefaultScreen(display);
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XSetWindowAttributes xswa;
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xswa.event_mask = (ExposureMask |
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StructureNotifyMask |
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ButtonPressMask |
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ButtonReleaseMask |
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KeyPressMask |
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KeyReleaseMask |
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PointerMotionMask);
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xswa.background_pixel = BlackPixel(display, screen);
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window = XCreateWindow(display, DefaultRootWindow(display),
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100, 100, w, h, 10, CopyFromParent, InputOutput,
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CopyFromParent, CWEventMask | CWBackPixel,
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&xswa);
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if (!window)
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fatal("window");
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XStoreName(display, window, name);
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XMapWindow(display, window);
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if (_x >= 0 && _y >= 0)
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XMoveWindow(display, window, _x, _y);
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dbuf = XCreatePixmap(display, window, w, h, DefaultDepth(display, screen));
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gc = XCreateGC(display, dbuf, 0, NULL);
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if (!gc)
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fatal("gc");
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}
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void clear()
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{
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setfg(0, 0, 0);
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XFillRectangle(display, dbuf, gc, 0, 0, w, h);
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}
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void show()
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{
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XCopyArea(display, dbuf, window, gc, 0, 0, w, h, 0, 0);
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}
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void sync()
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{
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XSync(display, False);
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}
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void events()
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{
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XEvent ev;
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while (XCheckWindowEvent(display, window, -1, &ev))
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{
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switch (ev.type)
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{
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case ButtonPress:
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{
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int b = ev.xbutton.button;
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buttons |= 1 << b;
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clicks |= 1 << b;
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mx = ev.xbutton.x;
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my = ev.xbutton.y;
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break;
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}
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case ButtonRelease:
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{
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int b = ev.xbutton.button;
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buttons &= ~(1 << b);
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mx = ev.xbutton.x;
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my = ev.xbutton.y;
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break;
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}
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case MotionNotify:
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mx = ev.xbutton.x;
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my = ev.xbutton.y;
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mmoved = true;
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break;
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}
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}
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}
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void setfg(unsigned char r, unsigned char g, unsigned char b)
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{
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XColor c;
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c.red = r << 8;
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c.green = g << 8;
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c.blue = b << 8;
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c.flags = DoRed | DoGreen | DoBlue;
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if (!XAllocColor(display, DefaultColormap(display, screen), &c))
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fatal("color");
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XSetForeground(display, gc, c.pixel);
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}
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void point(int x, int y)
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{
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XDrawPoint(display, dbuf, gc, x, y);
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}
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void line(int x0, int y0, int x1, int y1)
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{
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XDrawLine(display, dbuf, gc, x0, y0, x1, y1);
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}
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void text(int x, int y, const char *s)
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{
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XDrawString(display, dbuf, gc, x, y, s, strlen(s));
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}
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void transient_text(int x, int y, const char *s)
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{
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XDrawString(display, window, gc, x, y, s, strlen(s));
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}
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int buttons; // Mask of button states (2|4|8)
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int clicks; // Same, accumulated (must be cleared by owner)
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int mx, my; // Cursor position
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bool mmoved; // Pointer moved (must be cleared by owner)
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};
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template <typename T>
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struct cscope : runnable
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{
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T xymin, xymax;
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unsigned long decimation;
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unsigned long pixels_per_frame;
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cstln_base **cstln; // Optional ptr to optional constellation
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cscope(scheduler *sch, pipebuf<complex<T>> &_in, T _xymin, T _xymax,
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const char *_name = NULL)
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: runnable(sch, _name ? _name : _in.name),
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xymin(_xymin), xymax(_xymax),
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decimation(DEFAULT_GUI_DECIMATION), pixels_per_frame(1024),
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cstln(NULL),
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in(_in), phase(0), g(sch, name)
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{
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}
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void run()
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{
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while (in.readable() >= pixels_per_frame)
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{
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if (!phase)
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{
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draw_begin();
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g.setfg(0, 255, 0);
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complex<T> *p = in.rd(), *pend = p + pixels_per_frame;
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for (; p < pend; ++p)
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g.point(g.w * (p->re - xymin) / (xymax - xymin),
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g.h - g.h * (p->im - xymin) / (xymax - xymin));
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if (cstln && (*cstln))
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{
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// Plot constellation points
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g.setfg(255, 255, 255);
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for (int i = 0; i < (*cstln)->nsymbols; ++i)
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{
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complex<signed char> *p = &(*cstln)->symbols[i];
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int x = g.w * (p->re - xymin) / (xymax - xymin);
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int y = g.h - g.h * (p->im - xymin) / (xymax - xymin);
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for (int d = -2; d <= 2; ++d)
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{
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g.point(x + d, y);
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g.point(x, y + d);
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}
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}
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}
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g.show();
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g.sync();
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}
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in.read(pixels_per_frame);
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if (++phase >= decimation)
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phase = 0;
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}
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}
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//private:
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pipereader<complex<T>> in;
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unsigned long phase;
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gfx g;
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void draw_begin()
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{
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g.clear();
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g.setfg(0, 255, 0);
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g.line(g.w / 2, 0, g.w / 2, g.h);
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g.line(0, g.h / 2, g.w, g.h / 2);
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}
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};
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template <typename T>
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struct wavescope : runnable
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{
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T ymin, ymax;
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unsigned long decimation;
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float hgrid;
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wavescope(scheduler *sch, pipebuf<T> &_in,
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T _ymin, T _ymax, const char *_name = NULL)
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: runnable(sch, _name ? _name : _in.name),
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ymin(_ymin), ymax(_ymax),
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decimation(DEFAULT_GUI_DECIMATION), hgrid(0),
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in(_in),
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phase(0), g(sch, name), x(0)
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{
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g.clear();
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}
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void run()
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{
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while (in.readable() >= g.w)
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{
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if (!phase)
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plot(in.rd(), g.w);
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in.read(g.w);
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if (++phase >= decimation)
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phase = 0;
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}
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}
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void plot(T *p, int count)
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{
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T *pend = p + count;
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g.clear();
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g.setfg(128, 128, 0);
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g.line(0, g.h / 2, g.w - 1, g.h / 2);
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if (hgrid)
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{
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for (float x = 0; x < g.w; x += hgrid)
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g.line(x, 0, x, g.h - 1);
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}
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g.setfg(0, 255, 0);
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for (int x = 0; p < pend; ++x, ++p)
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{
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T v = *p;
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g.point(x, g.h - 1 - (g.h - 1) * (v - ymin) / (ymax - ymin));
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}
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g.show();
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g.sync();
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}
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private:
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pipereader<T> in;
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int phase;
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gfx g;
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int x;
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};
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template <typename T>
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struct slowmultiscope : runnable
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{
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struct chanspec
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{
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pipebuf<T> *in;
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const char *name, *format;
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unsigned char rgb[3];
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float scale;
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float ymin, ymax;
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enum flag
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{
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DEFAULT = 0,
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ASYNC = 1, // Read whatever is available
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COUNT = 2, // Display number of items read instead of value
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SUM = 4, // Display sum of values
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LINE = 8, // Connect points
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WRAP = 16, // Modulo min..max
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DISABLED = 32, // Ignore channel
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} flags;
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};
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unsigned long samples_per_pixel;
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float sample_freq; // Sample rate in Hz (used for cursor operations)
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slowmultiscope(scheduler *sch, const chanspec *specs, int nspecs,
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const char *_name)
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: runnable(sch, _name ? _name : "slowmultiscope"),
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samples_per_pixel(1), sample_freq(1),
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g(sch, name), t(0), x(0), total_samples(0)
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{
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chans = new channel[nspecs];
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nchans = 0;
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for (int i = 0; i < nspecs; ++i)
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{
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if (specs[i].flags & chanspec::DISABLED)
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continue;
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chans[nchans].spec = specs[i];
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chans[nchans].in = new pipereader<T>(*specs[i].in);
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chans[nchans].accum = 0;
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++nchans;
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}
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g.clear();
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}
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void run()
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{
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// Asynchronous channels: Read all available data
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for (channel *c = chans; c < chans + nchans; ++c)
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{
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if (c->spec.flags & chanspec::ASYNC)
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run_channel(c, c->in->readable());
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}
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// Synchronous channels: Read up to one pixel worth of data
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// between display syncs.
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unsigned long count = samples_per_pixel;
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for (channel *c = chans; c < chans + nchans; ++c)
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if (!(c->spec.flags & chanspec::ASYNC))
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count = min(count, c->in->readable());
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for (int n = count; n--;)
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{
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for (channel *c = chans; c < chans + nchans; ++c)
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if (!(c->spec.flags & chanspec::ASYNC))
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run_channel(c, 1);
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}
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t += count;
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g.show();
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// Print instantatenous values as text
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for (int i = 0; i < nchans; ++i)
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{
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channel *c = &chans[i];
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g.setfg(c->spec.rgb[0], c->spec.rgb[1], c->spec.rgb[2]);
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char text[256];
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sprintf(text, c->spec.format, c->print_val);
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g.transient_text(5, 20 + 16 * i, text);
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}
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run_gui();
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if (t >= samples_per_pixel)
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{
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t = 0;
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++x;
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if (x >= g.w)
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x = 0;
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g.setfg(0, 0, 0);
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g.line(x, 0, x, g.h - 1);
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}
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run_gui();
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g.sync();
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total_samples += count;
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}
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private:
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int nchans;
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struct channel
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{
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chanspec spec;
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pipereader<T> *in;
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float accum;
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int prev_y;
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float print_val;
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} * chans;
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void run_channel(channel *c, int nr)
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{
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g.setfg(c->spec.rgb[0], c->spec.rgb[1], c->spec.rgb[2]);
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int y = -1;
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while (nr--)
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{
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float v = *c->in->rd() * c->spec.scale;
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if (c->spec.flags & chanspec::COUNT)
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++c->accum;
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else if (c->spec.flags & chanspec::SUM)
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c->accum += v;
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else
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{
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c->print_val = v;
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float nv = (v - c->spec.ymin) / (c->spec.ymax - c->spec.ymin);
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if (c->spec.flags & chanspec::WRAP)
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nv = nv - floor(nv);
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y = g.h - g.h * nv;
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}
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c->in->read(1);
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}
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// Display count/sum channels only when the cursor is about to move.
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if ((c->spec.flags & (chanspec::COUNT | chanspec::SUM)) &&
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t + 1 >= samples_per_pixel)
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{
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T v = c->accum;
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y = g.h - 1 - g.h * (v - c->spec.ymin) / (c->spec.ymax - c->spec.ymin);
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c->accum = 0;
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c->print_val = v;
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}
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if (y >= 0)
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{
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if (c->spec.flags & chanspec::LINE)
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{
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if (x)
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g.line(x - 1, c->prev_y, x, y);
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c->prev_y = y;
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}
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else
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g.point(x, y);
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}
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}
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void run_gui()
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{
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g.events();
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// Print cursor time
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float ct = g.mx * samples_per_pixel / sample_freq;
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float tt = total_samples / sample_freq;
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char text[256];
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sprintf(text, "%.3f / %.3f s", ct, tt);
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g.setfg(255, 255, 255);
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g.transient_text(g.w * 3 / 4, 20, text);
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}
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gfx g;
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unsigned long t; // Time for synchronous channels
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int x;
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int total_samples;
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};
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template <typename T>
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struct spectrumscope : runnable
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{
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unsigned long size;
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float amax;
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unsigned long decimation;
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spectrumscope(scheduler *sch, pipebuf<complex<T>> &_in,
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T _max, const char *_name = NULL)
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: runnable(sch, _name ? _name : _in.name),
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size(4096), amax(_max / sqrtf(size)),
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decimation(DEFAULT_GUI_DECIMATION),
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in(_in),
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nmarkers(0),
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phase(0), g(sch, name), fft(NULL)
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{
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}
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void mark_freq(float f)
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{
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if (nmarkers == MAX_MARKERS)
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fail("Too many markers");
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markers[nmarkers++] = f;
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}
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void run()
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{
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while (in.readable() >= size)
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{
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if (!phase)
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do_fft(in.rd());
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in.read(size);
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if (++phase >= decimation)
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phase = 0;
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}
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}
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private:
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pipereader<complex<T>> in;
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static const int MAX_MARKERS = 4;
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float markers[MAX_MARKERS];
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int nmarkers;
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int phase;
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gfx g;
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cfft_engine<float> *fft;
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void do_fft(complex<T> *input)
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{
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draw_begin();
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if (!fft || fft->n != size)
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{
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if (fft)
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delete fft;
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fft = new cfft_engine<float>(size);
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}
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complex<T> *pin = input, *pend = pin + size;
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complex<float> data[size], *pout = data;
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g.setfg(255, 0, 0);
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for (int x = 0; pin < pend; ++pin, ++pout, ++x)
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{
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pout->re = (float)pin->re;
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pout->im = (float)pin->im;
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// g.point(x, g.h/2-pout->re*g.h/2/ymax);
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}
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fft->inplace(data, true);
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g.setfg(0, 255, 0);
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for (int i = 0; i < size; ++i)
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{
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int x = ((i < size / 2) ? i + size / 2 : i - size / 2) * g.w / size;
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complex<float> v = data[i];
|
|
;
|
|
float y = hypot(v.re, v.im);
|
|
g.line(x, g.h - 1, x, g.h - 1 - y * g.h / amax);
|
|
}
|
|
if (g.buttons)
|
|
{
|
|
char s[256];
|
|
float f = 2.4e6 * (g.mx - g.w / 2) / g.w;
|
|
sprintf(s, "%f", f);
|
|
g.text(16, 16, s);
|
|
}
|
|
g.show();
|
|
g.sync();
|
|
}
|
|
void draw_begin()
|
|
{
|
|
g.clear();
|
|
g.setfg(255, 255, 255);
|
|
g.line(g.w / 2, 0, g.w / 2, g.h);
|
|
g.setfg(255, 0, 0);
|
|
for (int i = 0; i < nmarkers; ++i)
|
|
{
|
|
int x = g.w * (0.5 + markers[i]);
|
|
g.line(x, 0, x, g.h);
|
|
}
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct rfscope : runnable
|
|
{
|
|
unsigned long size;
|
|
unsigned long decimation;
|
|
float Fs; // Sampling freq for display (Hz)
|
|
float Fc; // Center freq for display (Hz)
|
|
int ncursors;
|
|
float *cursors; // Cursor frequencies
|
|
float hzoom; // Horizontal zoom factor
|
|
float db0, dbrange; // Vertical range db0 .. db0+dbrange
|
|
float bw; // Smoothing bandwidth
|
|
rfscope(scheduler *sch, pipebuf<complex<T>> &_in,
|
|
const char *_name = NULL)
|
|
: runnable(sch, _name ? _name : _in.name),
|
|
size(4096), decimation(DEFAULT_GUI_DECIMATION),
|
|
Fs(1), Fc(0), ncursors(0), hzoom(1),
|
|
db0(-25), dbrange(50), bw(0.05),
|
|
in(_in), phase(0), g(sch, name), fft(NULL), filtered(NULL)
|
|
{
|
|
}
|
|
void run()
|
|
{
|
|
while (in.readable() >= size)
|
|
{
|
|
if (!phase)
|
|
do_fft(in.rd());
|
|
in.read(size);
|
|
if (++phase >= decimation)
|
|
phase = 0;
|
|
}
|
|
}
|
|
|
|
private:
|
|
pipereader<complex<T>> in;
|
|
int phase;
|
|
gfx g;
|
|
cfft_engine<float> *fft;
|
|
float *filtered;
|
|
|
|
void do_fft(complex<T> *input)
|
|
{
|
|
g.events();
|
|
draw_begin();
|
|
if (!fft || fft->n != size)
|
|
{
|
|
if (fft)
|
|
delete fft;
|
|
fft = new cfft_engine<float>(size);
|
|
}
|
|
// Convert to complex<float> and transform
|
|
complex<T> *pin = input, *pend = pin + size;
|
|
complex<float> data[size], *pout = data;
|
|
for (int x = 0; pin < pend; ++pin, ++pout, ++x)
|
|
{
|
|
pout->re = (float)pin->re;
|
|
pout->im = (float)pin->im;
|
|
}
|
|
fft->inplace(data, true);
|
|
float amp2[size];
|
|
for (int i = 0; i < size; ++i)
|
|
{
|
|
complex<float> &v = data[i];
|
|
;
|
|
amp2[i] = (v.re * v.re + v.im * v.im) * size;
|
|
}
|
|
if (!filtered)
|
|
{
|
|
filtered = new float[size];
|
|
for (int i = 0; i < size; ++i)
|
|
filtered[i] = amp2[i];
|
|
}
|
|
float bwcomp = 1 - bw;
|
|
g.setfg(0, 255, 0);
|
|
for (int i = 0; i < size; ++i)
|
|
{
|
|
filtered[i] = amp2[i] * bw + filtered[i] * bwcomp;
|
|
float db = filtered[i] ? 10 * logf(filtered[i]) / logf(10) : db0;
|
|
int is = (i < size / 2) ? i : i - size;
|
|
int x = g.w / 2 + is * hzoom * g.w / size;
|
|
int y = g.h - 1 - (db - db0) * g.h / dbrange;
|
|
g.line(x, g.h - 1, x, y);
|
|
}
|
|
if (g.buttons)
|
|
{
|
|
char s[256];
|
|
float freq = Fc + Fs * (g.mx - g.w / 2) / g.w / hzoom;
|
|
float val = db0 + (float)((g.h - 1) - g.my) * dbrange / g.h;
|
|
sprintf(s, "%f.3 Hz %f.2 dB", freq, val);
|
|
g.setfg(255, 255, 255);
|
|
g.text(16, 16, s);
|
|
}
|
|
// Draw cursors
|
|
g.setfg(255, 255, 0);
|
|
for (int i = 0; i < ncursors; ++i)
|
|
{
|
|
int x = g.w / 2 + (cursors[i] - Fc) * hzoom * g.w / Fs;
|
|
g.line(x, 0, x, g.h - 1);
|
|
}
|
|
g.show();
|
|
g.sync();
|
|
}
|
|
void draw_begin()
|
|
{
|
|
g.clear();
|
|
// dB scale
|
|
g.setfg(64, 64, 64);
|
|
for (float db = floorf(db0); db < db0 + dbrange; ++db)
|
|
{
|
|
int y = g.h - 1 - (db - db0) * g.h / dbrange;
|
|
g.line(0, y, g.w - 1, y);
|
|
}
|
|
// DC line
|
|
g.setfg(255, 255, 255);
|
|
g.line(g.w / 2, 0, g.w / 2, g.h);
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct genscope : runnable
|
|
{
|
|
struct render
|
|
{
|
|
int x, y;
|
|
char dir; // 'h'orizontal or 'v'ertical
|
|
};
|
|
struct chanspec
|
|
{
|
|
pipebuf<T> *in; // NULL if disabled
|
|
render r;
|
|
};
|
|
genscope(scheduler *sch, chanspec *specs, int _nchans,
|
|
const char *_name = NULL)
|
|
: runnable(sch, _name ? _name : "genscope"),
|
|
nchans(_nchans),
|
|
g(sch, name)
|
|
{
|
|
chans = new channel[nchans];
|
|
for (int i = 0; i < nchans; ++i)
|
|
{
|
|
if (!specs[i].in)
|
|
{
|
|
chans[i].in = NULL;
|
|
}
|
|
else
|
|
{
|
|
chans[i].spec = specs[i];
|
|
chans[i].in = new pipereader<T>(*specs[i].in);
|
|
}
|
|
}
|
|
g.clear();
|
|
gettimeofday(&tv, NULL);
|
|
}
|
|
struct channel
|
|
{
|
|
chanspec spec;
|
|
pipereader<T> *in;
|
|
} * chans;
|
|
int nchans;
|
|
struct timeval tv;
|
|
void run()
|
|
{
|
|
g.setfg(0, 255, 0);
|
|
for (channel *pc = chans; pc < chans + nchans; ++pc)
|
|
{
|
|
if (!pc->in)
|
|
continue;
|
|
int n = pc->in->readable();
|
|
T last = pc->in->rd()[n - 1];
|
|
pc->in->read(n);
|
|
int dx = pc->spec.r.dir == 'h' ? last : 0;
|
|
int dy = pc->spec.r.dir == 'v' ? last : 0;
|
|
dx /= 3;
|
|
dy /= 3;
|
|
g.line(pc->spec.r.x - dx, pc->spec.r.y - dy,
|
|
pc->spec.r.x + dx, pc->spec.r.y + dy);
|
|
char txt[16];
|
|
sprintf(txt, "%d", (int)last);
|
|
g.text(pc->spec.r.x + 5, pc->spec.r.y - 2, txt);
|
|
}
|
|
struct timeval newtv;
|
|
gettimeofday(&newtv, NULL);
|
|
int dt = (newtv.tv_sec - tv.tv_sec) * 1000 + (newtv.tv_usec - tv.tv_usec) / 1000;
|
|
if (dt > 100)
|
|
{
|
|
fprintf(stderr, "#");
|
|
g.show();
|
|
g.sync();
|
|
g.clear();
|
|
tv = newtv;
|
|
}
|
|
}
|
|
|
|
private:
|
|
gfx g;
|
|
};
|
|
|
|
#endif // GUI
|
|
|
|
} // namespace leansdr
|
|
|
|
#endif // LEANSDR_GUI_H
|