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#include "coreview.h"
#include <cmath>
//////////////////////////////////////////////////////////////////////////////
/// Size of visible view area
#define SC_WIDTH 720
#define SC_HEIGHT 540
//////////////////////////////////////////////////////////////////////////////
CoreView::CoreView(QWidget *parent) : QGraphicsView(parent) {
setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
}
void CoreView::setScene(QGraphicsScene *scene) {
QGraphicsView::setScene(scene);
update_scale();
}
void CoreView::resizeEvent(QResizeEvent *event) {
QGraphicsView::resizeEvent(event);
update_scale();
}
void CoreView::update_scale() {
if (scene() == nullptr)
return; // Skip if we have no scene
// Note: there is somehow three pixels error when viewing so we have to always compensate
const int w = scene()->width() + 3;
const int h = scene()->height() + 3;
qreal scale = 1;
if (height() > h && width() > w) {
if (height() > width()) {
scale = (qreal)width() / w;
} else {
scale = (qreal)height() / h;
}
}
QTransform t;
t.scale(scale, scale);
setTransform(t, false);
}
CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) : QGraphicsScene(view) {
setSceneRect(0, 0, SC_WIDTH, SC_HEIGHT);
// Identification cross (TODO remove)
QPen pen;
pen.setBrush(QBrush(QColor(220, 220, 220)));
addLine(width()/2, 0, width()/2, height(), pen);
addLine(0, height()/2, width(), height()/2, pen);
addRect(0.5, 0.5, width() - 0.5, height() - 0.5, pen);
// TODO remove
#define NEW(TYPE, VAR, ...) do { \
VAR = new coreview::TYPE(__VA_ARGS__);\
addItem(VAR);\
} while(false)
#define NEW_CON(VAR, ...) NEW(Connection, VAR, __VA_ARGS__)
NEW(ProgramCounter, pc, machine);
NEW(Latch, pc_latch, machine, 20);
NEW(Adder, pc_adder);
NEW(Constant, pc_adder_4, pc_adder->connector_in_b(), "4");
NEW(Junction, pc_junction);
NEW(Alu, alu);
NEW(Memory, mem, machine);
NEW(Registers, regs);
NEW(Multiplexer, pc_multiplexer, 4);
NEW(Multiplexer, mem_or_reg, 2);
struct coreview::Latch::ConnectorPair pc_latch_pair = pc_latch->new_connector(10);
NEW_CON(pc2pc_latch, pc->connector_out(), pc_latch_pair.in);
NEW_CON(pc_latch2pc_joint, pc_latch_pair.out, pc_junction->new_connector(0));
NEW_CON(pc_joint2pc_adder, pc_junction->new_connector(M_PI_2), pc_adder->connector_in_a());
NEW_CON(pc_joint2mem, pc_junction->new_connector(-M_PI_2), mem->connector_pc());
pc_joint2mem->setAxes({CON_AXIS_X(430)});
NEW_CON(pc_multiplexer2pc, pc_multiplexer->connector_out(), pc->connector_in());
pc_multiplexer2pc->setAxes({CON_AXIS_Y(90), CON_AXIS_X(80)});
pc->setPos(2, 330);
pc_latch->setPos(50, 370);
pc_adder->setPos(100, 350);
pc_junction->setPos(80, pc_latch_pair.out->y());
alu->setPos(470, 230);
mem->setPos(20, 510);
regs->setPos(20, 0);
pc_multiplexer->setPos(60, 100);
mem_or_reg->setPos(570, 180);
connect(regs, SIGNAL(open_registers()), this, SIGNAL(request_registers()));
connect(mem, SIGNAL(open_data_mem()), this, SIGNAL(request_data_memory()));
connect(mem, SIGNAL(open_program_mem()), this, SIGNAL(request_program_memory()));
}
CoreViewScene::~CoreViewScene() {
delete pc2pc_latch;
delete pc_latch2pc_joint;
delete pc_joint2pc_adder;
delete pc_joint2mem;
delete pc_multiplexer2pc;
delete pc;
delete pc_latch;
delete pc_adder;
delete pc_adder_4;
delete pc_junction;
delete alu;
delete pc_multiplexer;
}
CoreViewSceneSimple::CoreViewSceneSimple(CoreView *view, machine::QtMipsMachine *machine) : CoreViewScene(view, machine) {
delay_slot_latch = new coreview::Latch(machine, 150);
addItem(delay_slot_latch);
delay_slot_latch->setPos(160, 50);
}
CoreViewSceneSimple::~CoreViewSceneSimple() {
}
CoreViewScenePipelined::CoreViewScenePipelined(CoreView *view, machine::QtMipsMachine *machine) : CoreViewScene(view, machine) {
latch_if_id = new coreview::Latch(machine, 350);
latch_id_ex = new coreview::Latch(machine, 350);
latch_ex_mem = new coreview::Latch(machine, 350);
latch_mem_wb = new coreview::Latch(machine, 350);
latch_if_id->setTitle("IF/ID");
latch_id_ex->setTitle("ID/EX");
latch_ex_mem->setTitle("EX/MEM");
latch_mem_wb->setTitle("MEM/WB");
addItem(latch_if_id);
addItem(latch_id_ex);
addItem(latch_ex_mem);
addItem(latch_mem_wb);
latch_if_id->setPos(158, 90);
latch_id_ex->setPos(392, 90);
latch_ex_mem->setPos(536, 90);
latch_mem_wb->setPos(680, 90);
}
CoreViewScenePipelined::~CoreViewScenePipelined() {
}
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