/// <summary>
/// Sets the Scale Factor on this texture, and immediately recreates it at the correct size.
/// When a texture is resized, a scaled copy is performed from the old texture to the new one, to ensure no data is lost.
/// If scale is equivalent, this only propagates the blacklisted/scaled mode.
/// If called on a view, its storage is resized instead.
/// When resizing storage, all texture views are recreated.
/// </summary>
/// <param name="scale">The new scale factor for this texture</param>
public void SetScale(float scale)
{
TextureScaleMode newScaleMode = ScaleMode == TextureScaleMode.Blacklisted ? ScaleMode : TextureScaleMode.Scaled;
if (_viewStorage != this)
{
_viewStorage.ScaleMode = newScaleMode;
_viewStorage.SetScale(scale);
return;
}
if (ScaleFactor != scale)
{
Logger.Debug?.Print(LogClass.Gpu, $"Rescaling {Info.Width}x{Info.Height} {Info.FormatInfo.Format.ToString()} to ({ScaleFactor} to {scale}). ");
ScaleFactor = scale;
ITexture newStorage = GetScaledHostTexture(ScaleFactor);
Logger.Debug?.Print(LogClass.Gpu, $" Copy performed: {HostTexture.Width}x{HostTexture.Height} to {newStorage.Width}x{newStorage.Height}");
ReplaceStorage(newStorage);
// All views must be recreated against the new storage.
foreach (var view in _views)
{
Logger.Debug?.Print(LogClass.Gpu, $" Recreating view {Info.Width}x{Info.Height} {Info.FormatInfo.Format.ToString()}.");
view.ScaleFactor = scale;
TextureCreateInfo viewCreateInfo = TextureManager.GetCreateInfo(view.Info, _context.Capabilities, scale);
ITexture newView = HostTexture.CreateView(viewCreateInfo, view._firstLayer - _firstLayer, view._firstLevel - _firstLevel);
view.ReplaceStorage(newView);
view.ScaleMode = newScaleMode;
}
}
if (ScaleMode != newScaleMode)
{
ScaleMode = newScaleMode;
foreach (var view in _views)
{
view.ScaleMode = newScaleMode;
}
}
}
/// <summary>
/// Propagates the scale between this texture and another to ensure they have the same scale.
/// If one texture is blacklisted from scaling, the other will become blacklisted too.
/// </summary>
/// <param name="other">The other texture</param>
public void PropagateScale(Texture other)
{
if (other.ScaleMode == TextureScaleMode.Blacklisted || ScaleMode == TextureScaleMode.Blacklisted)
{
BlacklistScale();
other.BlacklistScale();
}
else
{
// Prefer the configured scale if present. If not, prefer the max.
float targetScale = GraphicsConfig.ResScale;
float sharedScale = (ScaleFactor == targetScale || other.ScaleFactor == targetScale) ? targetScale : Math.Max(ScaleFactor, other.ScaleFactor);
SetScale(sharedScale);
other.SetScale(sharedScale);
}
}
/// <summary>
/// Updates the Render Target scale, given the currently bound render targets.
/// This will update scale to match the configured scale, scale textures that are eligible but not scaled,
/// and propagate blacklisted status from one texture to the ones bound with it.
/// </summary>
/// <param name="singleUse">If this is not -1, it indicates that only the given indexed target will be used.</param>
public void UpdateRenderTargetScale(int singleUse)
{
// Make sure all scales for render targets are at the highest they should be. Blacklisted targets should propagate their scale to the other targets.
bool mismatch = false;
bool blacklisted = false;
bool hasUpscaled = false;
float targetScale = GraphicsConfig.ResScale;
void ConsiderTarget(Texture target)
{
if (target == null)
{
return;
}
float scale = target.ScaleFactor;
switch (target.ScaleMode)
{
case TextureScaleMode.Blacklisted:
mismatch |= scale != 1f;
blacklisted = true;
break;
case TextureScaleMode.Eligible:
mismatch = true; // We must make a decision.
break;
case TextureScaleMode.Scaled:
hasUpscaled = true;
mismatch |= scale != targetScale; // If the target scale has changed, reset the scale for all targets.
break;
}
}
if (singleUse != -1)
{
// If only one target is in use (by a clear, for example) the others do not need to be checked for mismatching scale.
ConsiderTarget(_rtColors[singleUse]);
}
else
{
foreach (Texture color in _rtColors)
{
ConsiderTarget(color);
}
}
ConsiderTarget(_rtDepthStencil);
mismatch |= blacklisted && hasUpscaled;
if (blacklisted)
{
targetScale = 1f;
}
if (mismatch)
{
if (blacklisted)
{
// Propagate the blacklisted state to the other textures.
foreach (Texture color in _rtColors)
{
color?.BlacklistScale();
}
_rtDepthStencil?.BlacklistScale();
}
else
{
// Set the scale of the other textures.
foreach (Texture color in _rtColors)
{
color?.SetScale(targetScale);
}
_rtDepthStencil?.SetScale(targetScale);
}
}
RenderTargetScale = targetScale;
}
