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Ryujinx/Ryujinx.Graphics.OpenGL/Window.cs
Emmanuel Hansen 80b4972139
Add Support for Post Processing Effects (#3616)
* Add Post Processing Effects

* fix events and shader issues

* fix gtk upscale slider value

* fix bgra games

* don't swap swizzle if already swapped

* restore opengl texture state after effects run

* addressed review

* use single pipeline for smaa and fsr

* call finish on all pipelines

* addressed review

* attempt fix file case

* attempt fixing file case

* fix filter level tick frequency

* adjust filter slider margins

* replace fxaa shaders with original shader

* addressed review
2023-02-27 18:11:55 -03:00

419 lines
No EOL
14 KiB
C#

using OpenTK.Graphics.OpenGL;
using Ryujinx.Graphics.GAL;
using Ryujinx.Graphics.OpenGL.Effects;
using Ryujinx.Graphics.OpenGL.Effects.Smaa;
using Ryujinx.Graphics.OpenGL.Image;
using System;
namespace Ryujinx.Graphics.OpenGL
{
class Window : IWindow, IDisposable
{
private readonly OpenGLRenderer _renderer;
private bool _initialized;
private int _width;
private int _height;
private bool _updateSize;
private int _copyFramebufferHandle;
private IPostProcessingEffect _antiAliasing;
private IScalingFilter _scalingFilter;
private bool _isLinear;
private AntiAliasing _currentAntiAliasing;
private bool _updateEffect;
private ScalingFilter _currentScalingFilter;
private float _scalingFilterLevel;
private bool _updateScalingFilter;
private bool _isBgra;
private TextureView _upscaledTexture;
internal BackgroundContextWorker BackgroundContext { get; private set; }
internal bool ScreenCaptureRequested { get; set; }
public Window(OpenGLRenderer renderer)
{
_renderer = renderer;
}
public void Present(ITexture texture, ImageCrop crop, Action swapBuffersCallback)
{
GL.Disable(EnableCap.FramebufferSrgb);
(int oldDrawFramebufferHandle, int oldReadFramebufferHandle) = ((Pipeline)_renderer.Pipeline).GetBoundFramebuffers();
CopyTextureToFrameBufferRGB(0, GetCopyFramebufferHandleLazy(), (TextureView)texture, crop, swapBuffersCallback);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
GL.Enable(EnableCap.FramebufferSrgb);
// Restore unpack alignment to 4, as performance overlays such as RTSS may change this to load their resources.
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 4);
}
public void ChangeVSyncMode(bool vsyncEnabled) { }
public void SetSize(int width, int height)
{
_width = width;
_height = height;
_updateSize = true;
}
private void CopyTextureToFrameBufferRGB(int drawFramebuffer, int readFramebuffer, TextureView view, ImageCrop crop, Action swapBuffersCallback)
{
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);
TextureView viewConverted = view.Format.IsBgr() ? _renderer.TextureCopy.BgraSwap(view) : view;
UpdateEffect();
if (_antiAliasing != null)
{
var oldView = viewConverted;
viewConverted = _antiAliasing.Run(viewConverted, _width, _height);
if (viewConverted.Format.IsBgr())
{
var swappedView = _renderer.TextureCopy.BgraSwap(viewConverted);
viewConverted?.Dispose();
viewConverted = swappedView;
}
if (viewConverted != oldView && oldView != view)
{
oldView.Dispose();
}
}
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
viewConverted.Handle,
0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.Clear(ClearBufferMask.ColorBufferBit);
int srcX0, srcX1, srcY0, srcY1;
float scale = viewConverted.ScaleFactor;
if (crop.Left == 0 && crop.Right == 0)
{
srcX0 = 0;
srcX1 = (int)(viewConverted.Width / scale);
}
else
{
srcX0 = crop.Left;
srcX1 = crop.Right;
}
if (crop.Top == 0 && crop.Bottom == 0)
{
srcY0 = 0;
srcY1 = (int)(viewConverted.Height / scale);
}
else
{
srcY0 = crop.Top;
srcY1 = crop.Bottom;
}
if (scale != 1f)
{
srcX0 = (int)(srcX0 * scale);
srcY0 = (int)(srcY0 * scale);
srcX1 = (int)Math.Ceiling(srcX1 * scale);
srcY1 = (int)Math.Ceiling(srcY1 * scale);
}
float ratioX = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _height * crop.AspectRatioX / (_width * crop.AspectRatioY));
float ratioY = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _width * crop.AspectRatioY / (_height * crop.AspectRatioX));
int dstWidth = (int)(_width * ratioX);
int dstHeight = (int)(_height * ratioY);
int dstPaddingX = (_width - dstWidth) / 2;
int dstPaddingY = (_height - dstHeight) / 2;
int dstX0 = crop.FlipX ? _width - dstPaddingX : dstPaddingX;
int dstX1 = crop.FlipX ? dstPaddingX : _width - dstPaddingX;
int dstY0 = crop.FlipY ? dstPaddingY : _height - dstPaddingY;
int dstY1 = crop.FlipY ? _height - dstPaddingY : dstPaddingY;
if (ScreenCaptureRequested)
{
CaptureFrame(srcX0, srcY0, srcX1, srcY1, view.Format.IsBgr(), crop.FlipX, crop.FlipY);
ScreenCaptureRequested = false;
}
if (_scalingFilter != null)
{
if (viewConverted.Format.IsBgr() && !_isBgra)
{
RecreateUpscalingTexture(true);
}
_scalingFilter.Run(
viewConverted,
_upscaledTexture,
_width,
_height,
new Extents2D(
srcX0,
srcY0,
srcX1,
srcY1),
new Extents2D(
dstX0,
dstY0,
dstX1,
dstY1)
);
srcX0 = dstX0;
srcY0 = dstY0;
srcX1 = dstX1;
srcY1 = dstY1;
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
_upscaledTexture.Handle,
0);
}
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
_isLinear ? BlitFramebufferFilter.Linear : BlitFramebufferFilter.Nearest);
// Remove Alpha channel
GL.ColorMask(false, false, false, true);
GL.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit);
for (int i = 0; i < Constants.MaxRenderTargets; i++)
{
((Pipeline)_renderer.Pipeline).RestoreComponentMask(i);
}
// Set clip control, viewport and the framebuffer to the output to placate overlays and OBS capture.
GL.ClipControl(ClipOrigin.LowerLeft, ClipDepthMode.NegativeOneToOne);
GL.Viewport(0, 0, _width, _height);
swapBuffersCallback();
((Pipeline)_renderer.Pipeline).RestoreClipControl();
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
((Pipeline)_renderer.Pipeline).RestoreViewport0();
if (viewConverted != view)
{
viewConverted.Dispose();
}
}
private int GetCopyFramebufferHandleLazy()
{
int handle = _copyFramebufferHandle;
if (handle == 0)
{
handle = GL.GenFramebuffer();
_copyFramebufferHandle = handle;
}
return handle;
}
public void InitializeBackgroundContext(IOpenGLContext baseContext)
{
BackgroundContext = new BackgroundContextWorker(baseContext);
_initialized = true;
}
public void CaptureFrame(int x, int y, int width, int height, bool isBgra, bool flipX, bool flipY)
{
long size = Math.Abs(4 * width * height);
byte[] bitmap = new byte[size];
GL.ReadPixels(x, y, width, height, isBgra ? PixelFormat.Bgra : PixelFormat.Rgba, PixelType.UnsignedByte, bitmap);
_renderer.OnScreenCaptured(new ScreenCaptureImageInfo(width, height, isBgra, bitmap, flipX, flipY));
}
public void Dispose()
{
if (!_initialized)
{
return;
}
BackgroundContext.Dispose();
if (_copyFramebufferHandle != 0)
{
GL.DeleteFramebuffer(_copyFramebufferHandle);
_copyFramebufferHandle = 0;
}
_antiAliasing?.Dispose();
_scalingFilter?.Dispose();
_upscaledTexture?.Dispose();
}
public void SetAntiAliasing(AntiAliasing effect)
{
if (_currentAntiAliasing == effect && _antiAliasing != null)
{
return;
}
_currentAntiAliasing = effect;
_updateEffect = true;
}
public void SetScalingFilter(ScalingFilter type)
{
if (_currentScalingFilter == type && _antiAliasing != null)
{
return;
}
_currentScalingFilter = type;
_updateScalingFilter = true;
}
private void UpdateEffect()
{
if (_updateEffect)
{
_updateEffect = false;
switch (_currentAntiAliasing)
{
case AntiAliasing.Fxaa:
_antiAliasing?.Dispose();
_antiAliasing = new FxaaPostProcessingEffect(_renderer);
break;
case AntiAliasing.None:
_antiAliasing?.Dispose();
_antiAliasing = null;
break;
case AntiAliasing.SmaaLow:
case AntiAliasing.SmaaMedium:
case AntiAliasing.SmaaHigh:
case AntiAliasing.SmaaUltra:
var quality = _currentAntiAliasing - AntiAliasing.SmaaLow;
if (_antiAliasing is SmaaPostProcessingEffect smaa)
{
smaa.Quality = quality;
}
else
{
_antiAliasing?.Dispose();
_antiAliasing = new SmaaPostProcessingEffect(_renderer, quality);
}
break;
}
}
if (_updateSize && !_updateScalingFilter)
{
RecreateUpscalingTexture();
}
_updateSize = false;
if (_updateScalingFilter)
{
_updateScalingFilter = false;
switch (_currentScalingFilter)
{
case ScalingFilter.Bilinear:
case ScalingFilter.Nearest:
_scalingFilter?.Dispose();
_scalingFilter = null;
_isLinear = _currentScalingFilter == ScalingFilter.Bilinear;
_upscaledTexture?.Dispose();
_upscaledTexture = null;
break;
case ScalingFilter.Fsr:
if (_scalingFilter is not FsrScalingFilter)
{
_scalingFilter?.Dispose();
_scalingFilter = new FsrScalingFilter(_renderer, _antiAliasing);
}
_isLinear = false;
_scalingFilter.Level = _scalingFilterLevel;
RecreateUpscalingTexture();
break;
}
}
}
private void RecreateUpscalingTexture(bool forceBgra = false)
{
_upscaledTexture?.Dispose();
var info = new TextureCreateInfo(
_width,
_height,
1,
1,
1,
1,
1,
1,
Format.R8G8B8A8Unorm,
DepthStencilMode.Depth,
Target.Texture2D,
forceBgra ? SwizzleComponent.Blue : SwizzleComponent.Red,
SwizzleComponent.Green,
forceBgra ? SwizzleComponent.Red : SwizzleComponent.Blue,
SwizzleComponent.Alpha);
_isBgra = forceBgra;
_upscaledTexture = _renderer.CreateTexture(info, 1) as TextureView;
}
public void SetScalingFilterLevel(float level)
{
_scalingFilterLevel = level;
_updateScalingFilter = true;
}
}
}