--- /dev/null
+/************************************************************************
+ ************************************************************************
+ FAUST compiler
+ Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
+ ---------------------------------------------------------------------
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ ************************************************************************
+ ************************************************************************/
+
+
+#include "recSchema.h"
+#include <iostream>
+#include <assert.h>
+
+using namespace std;
+
+/**
+ * Creates a new recursive schema (s1 ~ s2). The smallest component is
+ * enlarged to the width of the other. The left and right horizontal
+ * margins are computed according to the number of internal connections.
+ */
+schema* makeRecSchema (schema* s1, schema* s2)
+{
+ schema* a = makeEnlargedSchema(s1, s2->width());
+ schema* b = makeEnlargedSchema(s2, s1->width());
+ double m = dWire * max(b->inputs(), b->outputs());
+ double w = a->width() + 2*m;
+
+ return new recSchema(a,b,w);
+}
+
+/**
+ * Constructor of a recursive schema (s1 ~ s2). The two components
+ * are supposed to have the same width.
+ */
+recSchema::recSchema (schema* s1, schema* s2, double width)
+ : schema( s1->inputs() - s2->outputs(),
+ s1->outputs(),
+ width,
+ s1->height() + s2->height() ),
+ fSchema1(s1),
+ fSchema2(s2)
+{
+ // this version only accepts legal expressions of same width
+ assert(s1->inputs() >= s2->outputs());
+ assert(s1->outputs() >= s2->inputs());
+ assert(s1->width() >= s2->width());
+
+ // create the input and output points
+ for (unsigned int i=0; i<inputs(); i++) fInputPoint.push_back(point(0,0));
+ for (unsigned int i=0; i<outputs(); i++) fOutputPoint.push_back(point(0,0));
+
+}
+
+/**
+ * The two subschema are placed centered vertically, s2 on top of s1.
+ * The input and output points are computed.
+ */
+void recSchema::place(double ox, double oy, int orientation)
+{
+ beginPlace(ox, oy, orientation);
+
+ double dx1 = (width() - fSchema1->width())/2;
+ double dx2 = (width() - fSchema2->width())/2;
+
+ // place the two sub diagrams
+ if (orientation == kLeftRight) {
+ fSchema2->place(ox+dx2, oy, kRightLeft);
+ fSchema1->place(ox+dx1, oy+fSchema2->height(), kLeftRight);
+ } else {
+ fSchema1->place(ox+dx1, oy, kRightLeft);
+ fSchema2->place(ox+dx2, oy+fSchema1->height(), kLeftRight);
+ }
+
+
+ // adjust delta space to orientation
+ if (orientation == kRightLeft) { dx1 = -dx1; }
+
+ // place input points
+ for (unsigned int i=0; i<inputs(); i++) {
+ point p = fSchema1->inputPoint(i+fSchema2->outputs());
+ fInputPoint[i] = point(p.x-dx1, p.y);
+ }
+
+ // place output points
+ for (unsigned int i=0; i<outputs(); i++) {
+ point p = fSchema1->outputPoint(i);
+ fOutputPoint[i] = point(p.x+dx1, p.y);
+ }
+
+ endPlace();
+}
+
+
+/**
+ * The input points s1 ~ s2
+ */
+point recSchema::inputPoint(unsigned int i) const
+{
+ return fInputPoint[i];
+}
+
+
+/**
+ * The output points s1 ~ s2
+ */
+point recSchema::outputPoint(unsigned int i) const
+{
+ return fOutputPoint[i];
+}
+
+
+/**
+ * Draw the two subschema s1 and s2 as well as the feedback
+ * connections between s1 and s2, and the feedfrom connections
+ * beetween s2 and s1.
+ */
+void recSchema::draw(device& dev)
+{
+ assert(placed());
+
+ // draw the two subdiagrams
+ fSchema1->draw(dev);
+ fSchema2->draw(dev);
+
+ // draw the output lines
+ for (unsigned int i=0; i<outputs(); i++) {
+ point p = fSchema1->outputPoint(i);
+ point q = outputPoint(i);
+ //dev.trait(p.x, p.y, q.x, q.y);
+ }
+
+ // draw the input lines
+ unsigned int skip = fSchema2->outputs();
+ for (unsigned int i=0; i<inputs(); i++) {
+ point p = fSchema1->inputPoint(i+skip);
+ point q = inputPoint(i);
+ //dev.trait(p.x, p.y, q.x, q.y);
+ }
+
+ // draw the feedback connections to each fSchema2 input
+ for (unsigned int i=0; i<fSchema2->inputs(); i++) {
+ drawFeedback(dev, fSchema1->outputPoint(i), fSchema2->inputPoint(i), i*dWire);
+ }
+
+ // draw the feedfront connections from each fSchema2 output
+ for (unsigned int i=0; i<fSchema2->outputs(); i++) {
+ drawFeedfront(dev, fSchema2->outputPoint(i), fSchema1->inputPoint(i), i*dWire);
+ }
+}
+
+
+/**
+ * Draw the delay sign of a feedback connection
+ */
+void recSchema::drawDelaySign(device& dev, double x, double y, double size)
+{
+ dev.trait(x-size/2, y, x-size/2, y-size);
+ dev.trait(x-size/2, y-size, x+size/2, y-size);
+ dev.trait(x+size/2, y-size, x+size/2, y);
+}
+
+
+/**
+ * Draw the two subschema s1 and s2 as well as the feedback
+ * connections between s1 and s2, and the feedfrom connections
+ * beetween s2 and s1.
+ */
+void recSchema::collectTraits(collector& c)
+{
+ assert(placed());
+
+ // draw the two subdiagrams
+ fSchema1->collectTraits(c);
+ fSchema2->collectTraits(c);
+
+ // draw the feedback connections to each fSchema2 input
+ for (unsigned int i=0; i<fSchema2->inputs(); i++) {
+ collectFeedback(c, fSchema1->outputPoint(i), fSchema2->inputPoint(i), i*dWire, outputPoint(i));
+ }
+
+ // draw the non recursive output lines
+ for (unsigned int i=fSchema2->inputs(); i<outputs(); i++) {
+ point p = fSchema1->outputPoint(i);
+ point q = outputPoint(i);
+ c.addTrait(trait(p,q)); // in->out order
+ }
+
+ // draw the input lines
+ unsigned int skip = fSchema2->outputs();
+ for (unsigned int i=0; i<inputs(); i++) {
+ point p = inputPoint(i);
+ point q = fSchema1->inputPoint(i+skip);
+ c.addTrait(trait(p,q)); // in->out order
+ }
+
+ // draw the feedfront connections from each fSchema2 output
+ for (unsigned int i=0; i<fSchema2->outputs(); i++) {
+ collectFeedfront(c, fSchema2->outputPoint(i), fSchema1->inputPoint(i), i*dWire);
+ }
+}
+
+
+
+/**
+ * Draw a feedback connection between two points with an horizontal
+ * displacement dx
+ */
+void recSchema::drawFeedback(device& dev, const point& src, const point& dst, double dx)
+{
+ double ox = src.x + ((orientation()==kLeftRight) ? dx : -dx);
+ double ct = (orientation()==kLeftRight) ? dWire/2 : -dWire/2;
+
+ drawDelaySign(dev, ox, src.y, ct);
+ //dev.trait(ox, src.y-ct, ox, dst.y);
+ //dev.trait(ox, dst.y, dst.x, dst.y);
+}
+
+
+
+/**
+ * Draw a feedback connection between two points with an horizontal
+ * displacement dx
+ */
+void recSchema::collectFeedback(collector& c, const point& src, const point& dst, double dx, const point& out)
+{
+ double ox = src.x + ((orientation()==kLeftRight) ? dx : -dx);
+ double ct = (orientation()==kLeftRight) ? dWire/2 : -dWire/2;
+
+ point up(ox, src.y-ct);
+ point br(ox+ct/2.0, src.y);
+
+ c.addOutput(up);
+ c.addOutput(br);
+ c.addInput(br);
+
+ c.addTrait(trait(up, point(ox, dst.y)));
+ c.addTrait(trait(point(ox, dst.y), point(dst.x, dst.y)));
+ c.addTrait(trait(src,br));
+ c.addTrait(trait(br,out));
+
+}
+
+
+/**
+ * Draw a feedfrom connection between two points with an horizontal
+ * displacement dx
+ */
+void recSchema::drawFeedfront(device& dev, const point& src, const point& dst, double dx)
+{
+// double ox = src.x + ((orientation()==kLeftRight) ? -dx : dx);
+
+// dev.trait(ox, src.y, src.x, src.y);
+// dev.trait(ox, src.y, ox, dst.y);
+// dev.trait(ox, dst.y, dst.x, dst.y);
+}
+
+
+/**
+ * Draw a feedfrom connection between two points with an horizontal
+ * displacement dx
+ */
+void recSchema::collectFeedfront(collector& c, const point& src, const point& dst, double dx)
+{
+ double ox = src.x + ((orientation()==kLeftRight) ? -dx : dx);
+
+ c.addTrait(trait(point(src.x, src.y), point(ox, src.y)));
+ c.addTrait(trait(point(ox, src.y), point(ox, dst.y)));
+ c.addTrait(trait(point(ox, dst.y), point(dst.x, dst.y)));
+}
projects / Faustine.git / blobdiff