/// <summary>
/// Function called during idle time.
/// </summary>
/// <returns><b>true</b> to continue execution, <b>false</b> to stop.</returns>
private bool Idle()
{
_swap.RenderTargetView.Clear(GorgonColor.White);
var windowSize = new DX.Size2F(ClientSize.Width, ClientSize.Height);
var imageSize = new DX.Size2F(_texture.Width, _texture.Height);
// Calculate the scale between the images.
var scale = new DX.Size2F(windowSize.Width / imageSize.Width, windowSize.Height / imageSize.Height);
// Only scale on a single axis if we don't have a 1:1 aspect ratio.
if (scale.Height > scale.Width)
{
scale.Height = scale.Width;
}
else
{
scale.Width = scale.Height;
}
// Scale the image.
var size = new DX.Size2((int)(scale.Width * imageSize.Width), (int)(scale.Height * imageSize.Height));
// Find the position.
var bounds = new DX.Rectangle((int)((windowSize.Width / 2) - (size.Width / 2)), (int)((windowSize.Height / 2) - (size.Height / 2)), size.Width, size.Height);
_graphics.DrawTexture(_texture, bounds);
GorgonExample.BlitLogo(_graphics);
_swap.Present(1);
return(true);
}
/// <summary>
/// Function to render the data to the panel assigned in the <see cref="SetPanel"/> method.
/// </summary>
/// <param name="texture">The texture to render.</param>
/// <param name="outputTexture">The output texture to render.</param>
public void Render(GorgonTexture2DView texture, GorgonTexture2DView outputTexture)
{
if (_swapChain == null)
{
return;
}
if (_graphics.RenderTargets[0] != _swapChain.RenderTargetView)
{
_graphics.SetRenderTarget(_swapChain.RenderTargetView);
}
_swapChain.RenderTargetView.Clear(Color.CornflowerBlue);
if ((texture == null) ||
(outputTexture == null))
{
_swapChain.Present(1);
return;
}
// Get aspect ratio.
var scale = new DX.Size2F((_swapChain.Width * 0.5f) / texture.Width, (float)_swapChain.Height / texture.Height);
// Only scale on a single axis if we don't have a 1:1 aspect ratio.
if (scale.Height > scale.Width)
{
scale.Height = scale.Width;
}
else
{
scale.Width = scale.Height;
}
// Scale the image.
var size = new DX.Size2((int)(scale.Width * texture.Width), (int)(scale.Height * texture.Height));
// Find the position.
var bounds = new DX.Rectangle((_swapChain.Width / 4) - (size.Width / 2), ((_swapChain.Height / 2) - (size.Height / 2)), size.Width, size.Height);
_graphics.DrawTexture(texture, bounds, blendState: GorgonBlendState.Default, samplerState: GorgonSamplerState.PointFiltering);
bounds = new DX.Rectangle((_swapChain.Width - (_swapChain.Width / 4)) - (size.Width / 2), ((_swapChain.Height / 2) - (size.Height / 2)), size.Width, size.Height);
_graphics.DrawTexture(outputTexture, bounds, blendState: GorgonBlendState.Default, samplerState: GorgonSamplerState.PointFiltering);
_swapChain.Present(1);
}
/// <summary>
/// Function to blit the logo without the aid of the 2D renderer.
/// </summary>
/// <param name="graphics">The graphics interface to use.</param>
public static void BlitLogo(GorgonGraphics graphics)
{
GorgonRenderTargetView currentRtv = graphics.RenderTargets[0];
if ((currentRtv == null) || (_logo == null))
{
return;
}
var logoRegion = new DX.Rectangle(currentRtv.Width - _logo.Width - 5, currentRtv.Height - _logo.Height - 2, _logo.Width, _logo.Height);
graphics.DrawTexture(_logo, logoRegion, blendState: GorgonBlendState.Default);
}
