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Add source code of the XiPC emulator

Pawel Jablonski authored on 17/03/2023 16:46:08
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emu/src/lcdview.cpp
History View file @ cc3413a
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+/*
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+ * Author: Pawel Jablonski
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+ * E-mail: pj@xirx.net
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+ * WWW: xirx.net
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+ * GIT: git.xirx.net
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+ *
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+ * License: You can use this code however you like
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+ * but leave information about the original author.
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+ * Code is free for non-commercial and commercial use.
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+ */
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+
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+#include "lcdview.h"
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+#include "font.h"
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+
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+/**
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+ * Constructor for the LCD view class
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+ *
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+ * @param parent Parent object
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+ */
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+LCDView::LCDView(QWidget *parent) : QGraphicsView(parent)
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+{
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+	this->scene.reset(new QGraphicsScene(QRect(0, 0, WIDTH, HEIGHT), this));
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+
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+	QPixmap pixmap = QPixmap(WIDTH, HEIGHT);
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+	pixmap.fill(QColor(0, 0, 0));
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+
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+	this->pixmapItem = this->scene->addPixmap(pixmap);
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+
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+	this->scale(2, 2);
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+	this->setScene(this->scene.data());
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+	this->setBackgroundBrush(QBrush(QColor(0, 0, 0), Qt::SolidPattern));
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+	this->show();
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+}
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+
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+//! Reset the LCD view pixmap canvas
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+void LCDView::reset()
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+{
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+	QImage image = QImage(WIDTH, HEIGHT, QImage::Format_RGB32);
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+	image.fill(QColor(0, 0, 0));
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+
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+	this->pixmapItem->setPixmap(QPixmap::fromImage(image));
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+}
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+
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+/**
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+ * Process a mouse press event
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+ *
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+ * @param event Mouse press event
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+ */
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+void LCDView::mousePressEvent(QMouseEvent *)
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+{
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+	if(this->parentWidget())
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+	{
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+		this->parentWidget()->setFocus();
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+	}
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+}
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+
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+/**
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+ * Draw a LCD buffer on the LCD view canvas
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+ *
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+ * @param buffer LCD buffer
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+ */
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+void LCDView::drawSlot(LCD::Buffer buffer)
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+{
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+	QImage image = QImage(WIDTH, HEIGHT, QImage::Format_RGB32);
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+	image.fill(QColor(0, 0, 0));
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+
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+	for(int x = 0; x < LCD::WIDTH; x++)
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+	{
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+		for(int y = 0; y < LCD::HEIGHT; y++)
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+		{
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+			unsigned char c = buffer.charData[y][x];
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+			unsigned char colorChar = (buffer.colorData[y][x] & LCD::COLOR_MASK);
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+			unsigned char colorBackground = ((buffer.colorData[y][x] >> LCD::COLOR_SHIFT) & LCD::COLOR_MASK);
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+
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+			unsigned char colorCharBlue = ((colorChar & (1 << 0)) ? 170 : 0) + ((colorChar & (1 << 3)) ? 85 : 0);
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+			unsigned char colorCharGreen = ((colorChar & (1 << 1)) ? 180 : 0) + ((colorChar & (1 << 3)) ? 75 : 0);
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+			unsigned char colorCharRed = ((colorChar & (1 << 2)) ? 180 : 0) + ((colorChar & (1 << 3)) ? 75 : 0);
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+
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+			unsigned char colorBackgroundBlue = ((colorBackground & (1 << 0)) ? 170 : 0) + ((colorBackground & (1 << 3)) ? 85 : 0);
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+			unsigned char colorBackgroundGreen = ((colorBackground & (1 << 1)) ? 180 : 0) + ((colorBackground & (1 << 3)) ? 75 : 0);
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+			unsigned char colorBackgroundRed = ((colorBackground & (1 << 2)) ? 180 : 0) + ((colorBackground & (1 << 3)) ? 75 : 0);
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+
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+			for(int j = 0; j < LCD::CHAR_HEIGHT; j++)
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+			{
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+				unsigned char b = fontTable[c][j];
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+
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+				for(int i = 0; i < LCD::CHAR_WIDTH; i++)
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+				{
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+					if(b & 0x01)
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+					{
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+						image.setPixelColor(((x * LCD::CHAR_WIDTH) + i), ((y * LCD::CHAR_HEIGHT) + j), QColor(colorCharRed, colorCharGreen, colorCharBlue));
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+					}
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+					else
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+					{
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+						image.setPixelColor(((x * LCD::CHAR_WIDTH) + i), ((y * LCD::CHAR_HEIGHT) + j), QColor(colorBackgroundRed, colorBackgroundGreen, colorBackgroundBlue));
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+					}
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+
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+					b >>= 1;
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+				}
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+			}
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+		}
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+	}
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+
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+	this->pixmapItem->setPixmap(QPixmap::fromImage(image));
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+}