115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <QDebug>
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#include <QPainter>
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#include <math.h>
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#define DISPLAY_WIDTH 320
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#define DISPLAY_HEIGHT 240
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#define DISPLAY_X 10
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#define DISPLAY_Y 10
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QColor QColorFromRGB565(uint16_t color) {
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int R8 = (int) floor( (color>>(5+6)) * 255.0 / 31.0 + 0.5);
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int G8 = (int) floor( ((color>>5)&0x3F) * 255.0 / 63.0 + 0.5);
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int B8 = (int) floor( (color&0x1F) * 255.0 / 31.0 + 0.5);
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return QColor::fromRgb(R8,G8,B8);
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}
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QRgb QRgbFromRGB565(uint16_t color) {
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int R8 = (int) floor( (color>>(5+6)) * 255.0 / 31.0 + 0.5);
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int G8 = (int) floor( ((color>>5)&0x3F) * 255.0 / 63.0 + 0.5);
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int B8 = (int) floor( (color&0x1F) * 255.0 / 31.0 + 0.5);
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return qRgb(R8,G8,B8);
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}
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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image(DISPLAY_WIDTH,DISPLAY_HEIGHT,QImage::Format_RGB16),
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ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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image.fill(Qt::black);
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}
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void MainWindow::draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
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{
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//render_mutex.lock();
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QPainter painter(&(image));
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painter.setPen(QColorFromRGB565(color));
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painter.drawLine(x1,y1,x2,y2);
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//render_mutex.unlock();
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update();
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}
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void MainWindow::draw_pixel(uint16_t x, uint16_t y, uint16_t color)
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{
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//render_mutex.lock();
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image.setPixel(x,y,QRgbFromRGB565(color));
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//render_mutex.unlock();
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update();
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}
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void MainWindow::clear(uint16_t color)
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{
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//render_mutex.lock();
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image.fill(QColorFromRGB565(color));
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//render_mutex.unlock();
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update();
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}
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void MainWindow::draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
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{
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//render_mutex.lock();
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QPainter painter(&(image));
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painter.setPen(QColorFromRGB565(color));
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painter.drawRect(x1,y1,abs(x2-x1)+1,abs(y2-y1)+1);
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//render_mutex.unlock();
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update();
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}
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void MainWindow::fill_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
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{
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//render_mutex.lock();
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QPainter painter(&(image));
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painter.fillRect(x1,y1,abs(x2-x1)+1,abs(y2-y1)+1,QColorFromRGB565(color));
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//render_mutex.unlock();
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update();
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}
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void MainWindow::draw_bitmap_unscaled(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint16_t *dat)
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{
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//render_mutex.lock();
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for(int yi=0; yi<height; yi++) {
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for(int xi=0; xi<width; xi++) {
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image.setPixel(x+xi,y+yi,QRgbFromRGB565(dat[yi*width+xi]));
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}
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}
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//render_mutex.unlock();
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update();
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}
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void MainWindow::paintEvent(QPaintEvent *)
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{
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//render_mutex.lock();
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QPainter painter(this);
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painter.drawImage(DISPLAY_X,DISPLAY_Y,image);
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painter.setPen(QPen(Qt::green,2));
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painter.drawRect(DISPLAY_X-1,DISPLAY_Y-1,DISPLAY_WIDTH+2,DISPLAY_HEIGHT+2);
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//render_mutex.unlock();
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}
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