Ryujinx/Ryujinx.Graphics.OpenGL/Image/TextureCopy.cs
riperiperi 484eb645ae
Implement Zero-Configuration Resolution Scaling (#1365)
* Initial implementation of Render Target Scaling

Works with most games I have. No GUI option right now, it is hardcoded.

Missing handling for texelFetch operation.

* Realtime Configuration, refactoring.

* texelFetch scaling on fragment shader (WIP)

* Improve Shader-Side changes.

* Fix potential crash when no color/depth bound

* Workaround random uses of textures in compute.

This was blacklisting textures in a few games despite causing no bugs. Will eventually add full support so this doesn't break anything.

* Fix scales oscillating when changing between non-native scales.

* Scaled textures on compute, cleanup, lazier uniform update.

* Cleanup.

* Fix stupidity

* Address Thog Feedback.

* Cover most of GDK's feedback (two comments remain)

* Fix bad rename

* Move IsDepthStencil to FormatExtensions, add docs.

* Fix default config, square texture detection.

* Three final fixes:

- Nearest copy when texture is integer format.
- Texture2D -> Texture3D copy correctly blacklists the texture before trying an unscaled copy (caused driver error)
- Discount small textures.

* Remove scale threshold.

Not needed right now - we'll see if we run into problems.

* All CPU modification blacklists scale.

* Fix comment.
2020-07-07 04:41:07 +02:00

157 lines
4.9 KiB
C#

using Ryujinx.Graphics.GAL;
using OpenTK.Graphics.OpenGL;
using System;
namespace Ryujinx.Graphics.OpenGL.Image
{
class TextureCopy : IDisposable
{
private readonly Renderer _renderer;
private int _srcFramebuffer;
private int _dstFramebuffer;
public TextureCopy(Renderer renderer)
{
_renderer = renderer;
}
public void Copy(
TextureView src,
TextureView dst,
Extents2D srcRegion,
Extents2D dstRegion,
bool linearFilter)
{
(int oldDrawFramebufferHandle, int oldReadFramebufferHandle) = ((Pipeline)_renderer.Pipeline).GetBoundFramebuffers();
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, GetSrcFramebufferLazy());
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, GetDstFramebufferLazy());
Attach(FramebufferTarget.ReadFramebuffer, src.Format, src.Handle);
Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle);
ClearBufferMask mask = GetMask(src.Format);
if ((mask & (ClearBufferMask.DepthBufferBit | ClearBufferMask.StencilBufferBit)) != 0 || src.Format.IsInteger())
{
linearFilter = false;
}
BlitFramebufferFilter filter = linearFilter
? BlitFramebufferFilter.Linear
: BlitFramebufferFilter.Nearest;
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.BlitFramebuffer(
srcRegion.X1,
srcRegion.Y1,
srcRegion.X2,
srcRegion.Y2,
dstRegion.X1,
dstRegion.Y1,
dstRegion.X2,
dstRegion.Y2,
mask,
filter);
Attach(FramebufferTarget.ReadFramebuffer, src.Format, 0);
Attach(FramebufferTarget.DrawFramebuffer, dst.Format, 0);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
}
private static void Attach(FramebufferTarget target, Format format, int handle)
{
if (format == Format.D24UnormS8Uint || format == Format.D32FloatS8Uint)
{
GL.FramebufferTexture(target, FramebufferAttachment.DepthStencilAttachment, handle, 0);
}
else if (IsDepthOnly(format))
{
GL.FramebufferTexture(target, FramebufferAttachment.DepthAttachment, handle, 0);
}
else if (format == Format.S8Uint)
{
GL.FramebufferTexture(target, FramebufferAttachment.StencilAttachment, handle, 0);
}
else
{
GL.FramebufferTexture(target, FramebufferAttachment.ColorAttachment0, handle, 0);
}
}
private static ClearBufferMask GetMask(Format format)
{
if (format == Format.D24UnormS8Uint || format == Format.D32FloatS8Uint)
{
return ClearBufferMask.DepthBufferBit | ClearBufferMask.StencilBufferBit;
}
else if (IsDepthOnly(format))
{
return ClearBufferMask.DepthBufferBit;
}
else if (format == Format.S8Uint)
{
return ClearBufferMask.StencilBufferBit;
}
else
{
return ClearBufferMask.ColorBufferBit;
}
}
private static bool IsDepthOnly(Format format)
{
return format == Format.D16Unorm ||
format == Format.D24X8Unorm ||
format == Format.D32Float;
}
private int GetSrcFramebufferLazy()
{
if (_srcFramebuffer == 0)
{
_srcFramebuffer = GL.GenFramebuffer();
}
return _srcFramebuffer;
}
private int GetDstFramebufferLazy()
{
if (_dstFramebuffer == 0)
{
_dstFramebuffer = GL.GenFramebuffer();
}
return _dstFramebuffer;
}
public void Dispose()
{
if (_srcFramebuffer != 0)
{
GL.DeleteFramebuffer(_srcFramebuffer);
_srcFramebuffer = 0;
}
if (_dstFramebuffer != 0)
{
GL.DeleteFramebuffer(_dstFramebuffer);
_dstFramebuffer = 0;
}
}
}
}