protected override void OnDraw(ID2D1DeviceContext renderTarget)
{
base.OnDraw(renderTarget);
renderTarget.Clear(ClearColor);
renderTarget.Transform = GlobalTransform;
foreach (var sprite in Sprites.Values)
{
sprite.Draw(renderTarget);
}
renderTarget.Transform = Matrix3x2.Identity;
if (ShowFPS)
{
renderTarget.DrawText($"FPS: {RenderTimer.FramesPerSecond:F1}",
XResource.TextFormats[12.0f],
new RectangleF(0, 0, renderTarget.Size.Width, renderTarget.Size.Height),
XResource.GetColor(Color4.DimGray));
}
}
public void Draw(IntPtr hWnd)
{
if (m_disposed)
{
return;
}
EnsureDevice(hWnd);
using (var backbuffer = new IDXGISurface2())
{
// setup backbuffer
m_swapchain.GetBuffer(0, ref IDXGISurface2.IID, out backbuffer.PtrForNew).ThrowIfFailed();
backbuffer.GetDesc(out DXGI_SURFACE_DESC desc);
var prop = new D2D1_BITMAP_PROPERTIES1
{
bitmapOptions = D2D1_BITMAP_OPTIONS._TARGET | D2D1_BITMAP_OPTIONS._CANNOT_DRAW,
pixelFormat = new D2D1_PIXEL_FORMAT
{
format = DXGI_FORMAT._B8G8R8A8_UNORM,
alphaMode = D2D1_ALPHA_MODE._IGNORE
}
};
m_d2dContext.CreateBitmapFromDxgiSurface(backbuffer, ref prop, out ID2D1Bitmap1 bitmap).ThrowIfFailed();
using (bitmap)
{
m_d2dContext.SetTarget(bitmap);
// draw
m_d2dContext.BeginDraw();
var color = new Vector4(0, 0.1f, 0, 0);
m_d2dContext.Clear(ref color);
var brushColor = new Vector4(1, 0, 0, 1);
var brushProp = new D2D1_BRUSH_PROPERTIES
{
opacity = 1.0f,
transform = new Matrix3x2
{
M11 = 1.0f,
M22 = 1.0f,
}
};
m_d2dContext.CreateSolidColorBrush(ref brushColor, ref brushProp, out ID2D1SolidColorBrush brush).ThrowIfFailed();
using (brush)
{
var ellipse = new D2D1_ELLIPSE
{
radiusX = 50.0f,
radiusY = 50.0f,
};
m_d2dContext.DrawEllipse(ref ellipse, brush, 10.0f, null);
}
}
// dwrite
var font = new WSTR("Consolas");
var text = new WSTR("A0漢字B");
var locale = new WSTR("ja-jp");
m_dwriteFactory.CreateTextFormat(
ref font.Data,
null,
DWRITE_FONT_WEIGHT._REGULAR,
DWRITE_FONT_STYLE._NORMAL,
DWRITE_FONT_STRETCH._NORMAL,
144.0f,
ref locale.Data,
out IDWriteTextFormat pTextFormat
).ThrowIfFailed();
using (pTextFormat)
{
pTextFormat.SetTextAlignment(DWRITE_TEXT_ALIGNMENT._CENTER).ThrowIfFailed();
pTextFormat.SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT._CENTER).ThrowIfFailed();
var brushColor = new Vector4(0.7f, 0.7f, 1, 1);
var brushProp = new D2D1_BRUSH_PROPERTIES
{
opacity = 1.0f,
transform = new Matrix3x2
{
M11 = 1.0f,
M22 = 1.0f,
}
};
m_d2dContext.CreateSolidColorBrush(ref brushColor, ref brushProp, out ID2D1SolidColorBrush brush).ThrowIfFailed();
using (brush)
{
var rect = new Vector4
{
X = 0,
Y = 0,
Z = m_width,
W = m_height,
};
m_d2dContext.DrawText(
ref text.Data,
(uint)text.Length, // The string's length.
pTextFormat, // The text format.
ref rect, // The region of the window where the text will be rendered.
brush, // The brush used to draw the text.
D2D1_DRAW_TEXT_OPTIONS._NONE,
DWRITE_MEASURING_MODE._NATURAL
);
}
}
m_d2dContext.EndDraw(out ulong tag1, out ulong tag2);
// }
m_context.Flush();
m_swapchain.Present(0, 0);
m_d2dContext.SetTarget(null);
}
}
