void UpdateResolutionScaler()
{
var designSize = _designResolutionSize;
var screenSize = new Point(Screen.Width, Screen.Height);
var screenAspectRatio = (float)screenSize.X / (float)screenSize.Y;
var renderTargetWidth = screenSize.X;
var renderTargetHeight = screenSize.Y;
var resolutionScaleX = (float)screenSize.X / (float)designSize.X;
var resolutionScaleY = (float)screenSize.Y / (float)designSize.Y;
var rectCalculated = false;
// calculate the scale used by the PixelPerfect variants
PixelPerfectScale = 1;
if (_resolutionPolicy != SceneResolutionPolicy.None)
{
if ((float)designSize.X / (float)designSize.Y > screenAspectRatio)
{
PixelPerfectScale = screenSize.X / designSize.X;
}
else
{
PixelPerfectScale = screenSize.Y / designSize.Y;
}
if (PixelPerfectScale == 0)
{
PixelPerfectScale = 1;
}
}
switch (_resolutionPolicy)
{
case SceneResolutionPolicy.None:
_finalRenderDestinationRect.X = _finalRenderDestinationRect.Y = 0;
_finalRenderDestinationRect.Width = screenSize.X;
_finalRenderDestinationRect.Height = screenSize.Y;
rectCalculated = true;
break;
case SceneResolutionPolicy.ExactFit:
// exact design size render texture
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
break;
case SceneResolutionPolicy.NoBorder:
// exact design size render texture
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
resolutionScaleX = resolutionScaleY = Math.Max(resolutionScaleX, resolutionScaleY);
break;
case SceneResolutionPolicy.NoBorderPixelPerfect:
// exact design size render texture
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
// we are going to do some cropping so we need to use floats for the scale then round up
PixelPerfectScale = 1;
if ((float)designSize.X / (float)designSize.Y < screenAspectRatio)
{
var floatScale = (float)screenSize.X / (float)designSize.X;
PixelPerfectScale = Mathf.CeilToInt(floatScale);
}
else
{
var floatScale = (float)screenSize.Y / (float)designSize.Y;
PixelPerfectScale = Mathf.CeilToInt(floatScale);
}
if (PixelPerfectScale == 0)
{
PixelPerfectScale = 1;
}
_finalRenderDestinationRect.Width = Mathf.CeilToInt(designSize.X * PixelPerfectScale);
_finalRenderDestinationRect.Height = Mathf.CeilToInt(designSize.Y * PixelPerfectScale);
_finalRenderDestinationRect.X = (screenSize.X - _finalRenderDestinationRect.Width) / 2;
_finalRenderDestinationRect.Y = (screenSize.Y - _finalRenderDestinationRect.Height) / 2;
rectCalculated = true;
break;
case SceneResolutionPolicy.ShowAll:
resolutionScaleX = resolutionScaleY = Math.Min(resolutionScaleX, resolutionScaleY);
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
break;
case SceneResolutionPolicy.ShowAllPixelPerfect:
// exact design size render texture
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
_finalRenderDestinationRect.Width = Mathf.CeilToInt(designSize.X * PixelPerfectScale);
_finalRenderDestinationRect.Height = Mathf.CeilToInt(designSize.Y * PixelPerfectScale);
_finalRenderDestinationRect.X = (screenSize.X - _finalRenderDestinationRect.Width) / 2;
_finalRenderDestinationRect.Y = (screenSize.Y - _finalRenderDestinationRect.Height) / 2;
rectCalculated = true;
break;
case SceneResolutionPolicy.FixedHeight:
resolutionScaleX = resolutionScaleY;
designSize.X = Mathf.CeilToInt(screenSize.X / resolutionScaleX);
// exact design size render texture for height but not width
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
break;
case SceneResolutionPolicy.FixedHeightPixelPerfect:
// start with exact design size render texture height. the width may change
renderTargetHeight = designSize.Y;
_finalRenderDestinationRect.Width = Mathf.CeilToInt(designSize.X * resolutionScaleX);
_finalRenderDestinationRect.Height = Mathf.CeilToInt(designSize.Y * PixelPerfectScale);
_finalRenderDestinationRect.X = (screenSize.X - _finalRenderDestinationRect.Width) / 2;
_finalRenderDestinationRect.Y = (screenSize.Y - _finalRenderDestinationRect.Height) / 2;
rectCalculated = true;
renderTargetWidth = (int)(designSize.X * resolutionScaleX / PixelPerfectScale);
break;
case SceneResolutionPolicy.FixedWidth:
resolutionScaleY = resolutionScaleX;
designSize.Y = Mathf.CeilToInt(screenSize.Y / resolutionScaleY);
// exact design size render texture for width but not height
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
break;
case SceneResolutionPolicy.FixedWidthPixelPerfect:
// start with exact design size render texture width. the height may change
renderTargetWidth = designSize.X;
_finalRenderDestinationRect.Width = Mathf.CeilToInt(designSize.X * PixelPerfectScale);
_finalRenderDestinationRect.Height = Mathf.CeilToInt(designSize.Y * resolutionScaleY);
_finalRenderDestinationRect.X = (screenSize.X - _finalRenderDestinationRect.Width) / 2;
_finalRenderDestinationRect.Y = (screenSize.Y - _finalRenderDestinationRect.Height) / 2;
rectCalculated = true;
renderTargetHeight = (int)(designSize.Y * resolutionScaleY / PixelPerfectScale);
break;
case SceneResolutionPolicy.BestFit:
var safeScaleX = (float)screenSize.X / (designSize.X - _designBleedSize.X);
var safeScaleY = (float)screenSize.Y / (designSize.Y - _designBleedSize.Y);
var resolutionScale = MathHelper.Max(resolutionScaleX, resolutionScaleY);
var safeScale = MathHelper.Min(safeScaleX, safeScaleY);
resolutionScaleX = resolutionScaleY = MathHelper.Min(resolutionScale, safeScale);
renderTargetWidth = designSize.X;
renderTargetHeight = designSize.Y;
break;
}
// if we didnt already calculate a rect (None and all pixel perfect variants calculate it themselves) calculate it now
if (!rectCalculated)
{
// calculate the display rect of the RenderTarget
var renderWidth = designSize.X * resolutionScaleX;
var renderHeight = designSize.Y * resolutionScaleY;
_finalRenderDestinationRect = RectangleExt.FromFloats((screenSize.X - renderWidth) / 2, (screenSize.Y - renderHeight) / 2, renderWidth, renderHeight);
}
// set some values in the Input class to translate mouse position to our scaled resolution
var scaleX = renderTargetWidth / (float)_finalRenderDestinationRect.Width;
var scaleY = renderTargetHeight / (float)_finalRenderDestinationRect.Height;
Input._resolutionScale = new Vector2(scaleX, scaleY);
Input._resolutionOffset = _finalRenderDestinationRect.Location;
// resize our RenderTargets
if (_sceneRenderTarget != null)
{
_sceneRenderTarget.Dispose();
}
_sceneRenderTarget = RenderTarget.Create(renderTargetWidth, renderTargetHeight);
// only create the destinationRenderTarget if it already exists, which would indicate we have PostProcessors
if (_destinationRenderTarget != null)
{
_destinationRenderTarget.Dispose();
_destinationRenderTarget = RenderTarget.Create(renderTargetWidth, renderTargetHeight);
}
// notify the Renderers, PostProcessors and FinalRenderDelegate of the change in render texture size
for (var i = 0; i < _renderers.Length; i++)
{
_renderers.Buffer[i].OnSceneBackBufferSizeChanged(renderTargetWidth, renderTargetHeight);
}
for (var i = 0; i < _afterPostProcessorRenderers.Length; i++)
{
_afterPostProcessorRenderers.Buffer[i].OnSceneBackBufferSizeChanged(renderTargetWidth, renderTargetHeight);
}
for (var i = 0; i < _postProcessors.Length; i++)
{
_postProcessors.Buffer[i].OnSceneBackBufferSizeChanged(renderTargetWidth, renderTargetHeight);
}
if (_finalRenderDelegate != null)
{
_finalRenderDelegate.OnSceneBackBufferSizeChanged(renderTargetWidth, renderTargetHeight);
}
Camera.OnSceneRenderTargetSizeChanged(renderTargetWidth, renderTargetHeight);
}
public void DrawInto(Batcher batcher, ref FontCharacterSource text, Vector2 position, Color color,
float rotation, Vector2 origin, Vector2 scale, SpriteEffects effect, float depth)
{
var flipAdjustment = Vector2.Zero;
var flippedVert = (effect & SpriteEffects.FlipVertically) == SpriteEffects.FlipVertically;
var flippedHorz = (effect & SpriteEffects.FlipHorizontally) == SpriteEffects.FlipHorizontally;
if (flippedVert || flippedHorz)
{
Vector2 size;
MeasureString(ref text, out size);
if (flippedHorz)
{
origin.X *= -1;
flipAdjustment.X = -size.X;
}
if (flippedVert)
{
origin.Y *= -1;
flipAdjustment.Y = _font.LineSpacing - size.Y;
}
}
// TODO: This looks excessive... i suspect we could do most of this with simple vector math and avoid this much matrix work.
var requiresTransformation = flippedHorz || flippedVert || rotation != 0f || scale != Vector2.One;
if (requiresTransformation)
{
Matrix2D temp;
Matrix2D.CreateTranslation(-origin.X, -origin.Y, out _transformationMatrix);
Matrix2D.CreateScale((flippedHorz ? -scale.X : scale.X), (flippedVert ? -scale.Y : scale.Y), out temp);
Matrix2D.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
Matrix2D.CreateTranslation(flipAdjustment.X, flipAdjustment.Y, out temp);
Matrix2D.Multiply(ref temp, ref _transformationMatrix, out _transformationMatrix);
Matrix2D.CreateRotation(rotation, out temp);
Matrix2D.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
Matrix2D.CreateTranslation(position.X, position.Y, out temp);
Matrix2D.Multiply(ref _transformationMatrix, ref temp, out _transformationMatrix);
}
// Get the default glyph here once.
SpriteFont.Glyph?defaultGlyph = null;
if (_font.DefaultCharacter.HasValue)
{
defaultGlyph = _glyphs[_font.DefaultCharacter.Value];
}
var currentGlyph = SpriteFont.Glyph.Empty;
var offset = requiresTransformation ? Vector2.Zero : position - origin;
var firstGlyphOfLine = true;
for (var i = 0; i < text.Length; ++i)
{
var c = text[i];
if (c == '\r')
{
continue;
}
if (c == '\n')
{
offset.X = requiresTransformation ? 0f : position.X - origin.X;
offset.Y += _font.LineSpacing;
firstGlyphOfLine = true;
continue;
}
if (!_glyphs.TryGetValue(c, out currentGlyph))
{
if (!defaultGlyph.HasValue)
{
throw new ArgumentException("Errors.TextContainsUnresolvableCharacters", "text");
}
currentGlyph = defaultGlyph.Value;
}
// The first character on a line might have a negative left side bearing.
// In this scenario, SpriteBatch/SpriteFont normally offset the text to the right,
// so that text does not hang off the left side of its rectangle.
if (firstGlyphOfLine)
{
offset.X += Math.Max(currentGlyph.LeftSideBearing, 0);
firstGlyphOfLine = false;
}
else
{
offset.X += _font.Spacing + currentGlyph.LeftSideBearing;
}
var p = offset;
if (flippedHorz)
{
p.X += currentGlyph.BoundsInTexture.Width;
}
p.X += currentGlyph.Cropping.X;
if (flippedVert)
{
p.Y += currentGlyph.BoundsInTexture.Height - _font.LineSpacing;
}
p.Y += currentGlyph.Cropping.Y;
// transform our point if we need to
if (requiresTransformation)
{
Vector2Ext.Transform(ref p, ref _transformationMatrix, out p);
}
var destRect = RectangleExt.FromFloats(p.X, p.Y,
currentGlyph.BoundsInTexture.Width * scale.X,
currentGlyph.BoundsInTexture.Height * scale.Y);
batcher.Draw(_font.Texture, destRect, currentGlyph.BoundsInTexture, color, rotation, Vector2.Zero,
effect, depth);
offset.X += currentGlyph.Width + currentGlyph.RightSideBearing;
}
}
