public TftSpiDisplayApp()
{
Console.WriteLine("TftSpi sample");
Console.WriteLine("Create Spi bus");
spiBus = Device.CreateSpiBus();// Device.Pins.SCK, Device.Pins.MOSI, Device.Pins.MISO, 2000);
Console.WriteLine("Create display driver instance");
display = new ST7789(device: Device, spiBus: spiBus,
chipSelectPin: Device.Pins.D02,
dcPin: Device.Pins.D01,
resetPin: Device.Pins.D00,
width: 240, height: 240);
Console.WriteLine("Create graphics lib");
/* var graphicsLib = new GraphicsLibrary(display);
* graphicsLib.CurrentFont = new Font8x8();
*
* graphicsLib.Clear();
*
* graphicsLib.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
*
* graphicsLib.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, true);
*
* //graphicsLib.DrawCircle()
*
* graphicsLib.DrawText(5, 5, "Meadow F7 SPI");
*
* graphicsLib.Show();*/
Console.WriteLine("Clear display");
display.ClearScreen(250);
display.Refresh();
Console.WriteLine("Draw lines");
for (int i = 0; i < 30; i++)
{
display.DrawPixel(i, i, true);
display.DrawPixel(30 + i, i, true);
display.DrawPixel(60 + i, i, true);
}
display.Show();
}
void Draw24BppBitmap(int x, int y, int offset, int width, int height, byte[] data)
{
int padding = (width * 3) % 4;
byte r, g, b;
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++)
{
b = data[i * 3 + j * (width * 3 + padding) + offset];
g = data[i * 3 + j * (width * 3 + padding) + offset + 1];
r = data[i * 3 + j * (width * 3 + padding) + offset + 2];
controller.DrawPixel(x + i, y + height - j, r, g, b);
}
}
}
void Benchmark()
{
display.SetPenColor(Color.BlueViolet);
var sw = new Stopwatch();
sw.Start();
for (int i = 0; i < 10; i++)
{
for (int x = 0; x < 240; x++)
{
for (int y = 0; y < 240; y++)
{
display.DrawPixel(x, y);
}
}
display.Show();
}
sw.Stop();
Console.WriteLine("Elapsed={0}", sw.Elapsed);
}