125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
#include "mainwindow.h"
|
|
#include "ui_mainwindow.h"
|
|
#include <QDebug>
|
|
#include <QPainter>
|
|
#include <math.h>
|
|
|
|
#define DISPLAY_WIDTH 320
|
|
#define DISPLAY_HEIGHT 240
|
|
#define DISPLAY_X 10
|
|
#define DISPLAY_Y 10
|
|
|
|
QColor QColorFromRGB565(uint16_t color) {
|
|
|
|
int R8 = (int) floor( (color>>(5+6)) * 255.0 / 31.0 + 0.5);
|
|
int G8 = (int) floor( ((color>>5)&0x3F) * 255.0 / 63.0 + 0.5);
|
|
int B8 = (int) floor( (color&0x1F) * 255.0 / 31.0 + 0.5);
|
|
return QColor::fromRgb(R8,G8,B8);
|
|
}
|
|
|
|
QRgb QRgbFromRGB565(uint16_t color) {
|
|
|
|
int R8 = (int) floor( (color>>(5+6)) * 255.0 / 31.0 + 0.5);
|
|
int G8 = (int) floor( ((color>>5)&0x3F) * 255.0 / 63.0 + 0.5);
|
|
int B8 = (int) floor( (color&0x1F) * 255.0 / 31.0 + 0.5);
|
|
return qRgb(R8,G8,B8);
|
|
}
|
|
|
|
|
|
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), image(DISPLAY_WIDTH,DISPLAY_HEIGHT, QImage::Format_RGB16), ui(new Ui::MainWindow){
|
|
ui->setupUi(this);
|
|
image.fill(Qt::black);
|
|
}
|
|
|
|
void MainWindow::draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
QPainter painter(&(image));
|
|
painter.setPen(QColorFromRGB565(color));
|
|
painter.drawLine(x1,y1,x2,y2);
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::draw_pixel(uint16_t x, uint16_t y, uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
image.setPixel(x,y,QRgbFromRGB565(color));
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::clear(uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
image.fill(QColorFromRGB565(color));
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
QPainter painter(&(image));
|
|
painter.setPen(QColorFromRGB565(color));
|
|
painter.drawRect(x1,y1,abs(x2-x1)+1,abs(y2-y1)+1);
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::fill_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
QPainter painter(&(image));
|
|
painter.fillRect(x1,y1,abs(x2-x1)+1,abs(y2-y1)+1,QColorFromRGB565(color));
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::draw_bitmap_unscaled(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint16_t *dat)
|
|
{
|
|
//Creating a new image and access it directly is faster than setPixel
|
|
QImage img(width,height,QImage::Format_RGB32);
|
|
|
|
for(int yi=0; yi<height; yi++) {
|
|
uint32_t* line = (uint32_t*)img.scanLine(yi);
|
|
for(int xi=0; xi<width; xi++) {
|
|
*line++=QRgbFromRGB565(dat[yi*width+xi]);
|
|
}
|
|
}
|
|
|
|
//render_mutex.lock();
|
|
QPainter p(&image);
|
|
p.drawImage(x,y,img);
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::draw_circle(uint16_t x, uint16_t y, uint16_t r, uint16_t color)
|
|
{
|
|
//render_mutex.lock();
|
|
QPainter painter(&(image));
|
|
painter.setPen(QColorFromRGB565(color));
|
|
painter.drawEllipse(QPoint(x,y), r, r);
|
|
//render_mutex.unlock();
|
|
update();
|
|
}
|
|
|
|
void MainWindow::paintEvent(QPaintEvent *)
|
|
{
|
|
//render_mutex.lock();
|
|
QPainter painter(this);
|
|
|
|
painter.drawImage(DISPLAY_X,DISPLAY_Y,image);
|
|
painter.setPen(QPen(Qt::green,2));
|
|
painter.drawRect(DISPLAY_X-1,DISPLAY_Y-1,DISPLAY_WIDTH+2,DISPLAY_HEIGHT+2);
|
|
//render_mutex.unlock();
|
|
}
|
|
|
|
|
|
MainWindow::~MainWindow()
|
|
{
|
|
delete ui;
|
|
}
|
|
|