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ryujinx-fork/Ryujinx.Graphics/Gal/OpenGL/OglRenderTarget.cs
Alex Barney b2b736abc2 Misc cleanup (#708)
* Fix typos

* Remove unneeded using statements

* Enforce var style more

* Remove redundant qualifiers

* Fix some indentation

* Disable naming warnings on files with external enum names

* Fix build

* Mass find & replace for comments with no spacing

* Standardize todo capitalization and for/if spacing
2019-07-02 04:39:22 +02:00

549 lines
No EOL
17 KiB
C#

using OpenTK.Graphics.OpenGL;
using Ryujinx.Graphics.Texture;
using System;
namespace Ryujinx.Graphics.Gal.OpenGL
{
class OglRenderTarget : IGalRenderTarget
{
private const int NativeWidth = 1280;
private const int NativeHeight = 720;
private const int RenderTargetsCount = GalPipelineState.RenderTargetsCount;
private struct Rect
{
public int X { get; private set; }
public int Y { get; private set; }
public int Width { get; private set; }
public int Height { get; private set; }
public Rect(int x, int y, int width, int height)
{
X = x;
Y = y;
Width = width;
Height = height;
}
}
private class FrameBufferAttachments
{
public int MapCount { get; set; }
public DrawBuffersEnum[] Map { get; private set; }
public long[] Colors { get; private set; }
public long Zeta { get; set; }
public FrameBufferAttachments()
{
Colors = new long[RenderTargetsCount];
Map = new DrawBuffersEnum[RenderTargetsCount];
}
public void Update(FrameBufferAttachments source)
{
for (int index = 0; index < RenderTargetsCount; index++)
{
Map[index] = source.Map[index];
Colors[index] = source.Colors[index];
}
MapCount = source.MapCount;
Zeta = source.Zeta;
}
}
private int[] _colorHandles;
private int _zetaHandle;
private OglTexture _texture;
private ImageHandler _readTex;
private Rect _window;
private float[] _viewports;
private bool _flipX;
private bool _flipY;
private int _cropTop;
private int _cropLeft;
private int _cropRight;
private int _cropBottom;
// This framebuffer is used to attach guest rendertargets,
// think of it as a dummy OpenGL VAO
private int _dummyFrameBuffer;
// These framebuffers are used to blit images
private int _srcFb;
private int _dstFb;
private FrameBufferAttachments _attachments;
private FrameBufferAttachments _oldAttachments;
private int _copyPbo;
public bool FramebufferSrgb { get; set; }
public OglRenderTarget(OglTexture texture)
{
_attachments = new FrameBufferAttachments();
_oldAttachments = new FrameBufferAttachments();
_colorHandles = new int[RenderTargetsCount];
_viewports = new float[RenderTargetsCount * 4];
_texture = texture;
texture.TextureDeleted += TextureDeletionHandler;
}
private void TextureDeletionHandler(object sender, int handle)
{
// Texture was deleted, the handle is no longer valid, so
// reset all uses of this handle on a render target.
for (int attachment = 0; attachment < RenderTargetsCount; attachment++)
{
if (_colorHandles[attachment] == handle)
{
_colorHandles[attachment] = 0;
}
}
if (_zetaHandle == handle)
{
_zetaHandle = 0;
}
}
public void Bind()
{
if (_dummyFrameBuffer == 0)
{
_dummyFrameBuffer = GL.GenFramebuffer();
}
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, _dummyFrameBuffer);
ImageHandler cachedImage;
for (int attachment = 0; attachment < RenderTargetsCount; attachment++)
{
long key = _attachments.Colors[attachment];
int handle = 0;
if (key != 0 && _texture.TryGetImageHandler(key, out cachedImage))
{
handle = cachedImage.Handle;
}
if (handle == _colorHandles[attachment])
{
continue;
}
GL.FramebufferTexture(
FramebufferTarget.DrawFramebuffer,
FramebufferAttachment.ColorAttachment0 + attachment,
handle,
0);
_colorHandles[attachment] = handle;
}
if (_attachments.Zeta != 0 && _texture.TryGetImageHandler(_attachments.Zeta, out cachedImage))
{
if (cachedImage.Handle != _zetaHandle)
{
if (cachedImage.HasDepth && cachedImage.HasStencil)
{
GL.FramebufferTexture(
FramebufferTarget.DrawFramebuffer,
FramebufferAttachment.DepthStencilAttachment,
cachedImage.Handle,
0);
}
else if (cachedImage.HasDepth)
{
GL.FramebufferTexture(
FramebufferTarget.DrawFramebuffer,
FramebufferAttachment.DepthAttachment,
cachedImage.Handle,
0);
GL.FramebufferTexture(
FramebufferTarget.DrawFramebuffer,
FramebufferAttachment.StencilAttachment,
0,
0);
}
else
{
throw new InvalidOperationException("Invalid image format \"" + cachedImage.Format + "\" used as Zeta!");
}
_zetaHandle = cachedImage.Handle;
}
}
else if (_zetaHandle != 0)
{
GL.FramebufferTexture(
FramebufferTarget.DrawFramebuffer,
FramebufferAttachment.DepthStencilAttachment,
0,
0);
_zetaHandle = 0;
}
if (OglExtension.ViewportArray)
{
GL.ViewportArray(0, RenderTargetsCount, _viewports);
}
else
{
GL.Viewport(
(int)_viewports[0],
(int)_viewports[1],
(int)_viewports[2],
(int)_viewports[3]);
}
if (_attachments.MapCount > 1)
{
GL.DrawBuffers(_attachments.MapCount, _attachments.Map);
}
else if (_attachments.MapCount == 1)
{
GL.DrawBuffer((DrawBufferMode)_attachments.Map[0]);
}
else
{
GL.DrawBuffer(DrawBufferMode.None);
}
_oldAttachments.Update(_attachments);
}
public void BindColor(long key, int attachment)
{
_attachments.Colors[attachment] = key;
}
public void UnbindColor(int attachment)
{
_attachments.Colors[attachment] = 0;
}
public void BindZeta(long key)
{
_attachments.Zeta = key;
}
public void UnbindZeta()
{
_attachments.Zeta = 0;
}
public void Present(long key)
{
_texture.TryGetImageHandler(key, out _readTex);
}
public void SetMap(int[] map)
{
if (map != null)
{
_attachments.MapCount = map.Length;
for (int attachment = 0; attachment < _attachments.MapCount; attachment++)
{
_attachments.Map[attachment] = DrawBuffersEnum.ColorAttachment0 + map[attachment];
}
}
else
{
_attachments.MapCount = 0;
}
}
public void SetTransform(bool flipX, bool flipY, int top, int left, int right, int bottom)
{
_flipX = flipX;
_flipY = flipY;
_cropTop = top;
_cropLeft = left;
_cropRight = right;
_cropBottom = bottom;
}
public void SetWindowSize(int width, int height)
{
_window = new Rect(0, 0, width, height);
}
public void SetViewport(int attachment, int x, int y, int width, int height)
{
int offset = attachment * 4;
_viewports[offset + 0] = x;
_viewports[offset + 1] = y;
_viewports[offset + 2] = width;
_viewports[offset + 3] = height;
}
public void Render()
{
if (_readTex == null)
{
return;
}
int srcX0, srcX1, srcY0, srcY1;
if (_cropLeft == 0 && _cropRight == 0)
{
srcX0 = 0;
srcX1 = _readTex.Width;
}
else
{
srcX0 = _cropLeft;
srcX1 = _cropRight;
}
if (_cropTop == 0 && _cropBottom == 0)
{
srcY0 = 0;
srcY1 = _readTex.Height;
}
else
{
srcY0 = _cropTop;
srcY1 = _cropBottom;
}
float ratioX = MathF.Min(1f, (_window.Height * (float)NativeWidth) / ((float)NativeHeight * _window.Width));
float ratioY = MathF.Min(1f, (_window.Width * (float)NativeHeight) / ((float)NativeWidth * _window.Height));
int dstWidth = (int)(_window.Width * ratioX);
int dstHeight = (int)(_window.Height * ratioY);
int dstPaddingX = (_window.Width - dstWidth) / 2;
int dstPaddingY = (_window.Height - dstHeight) / 2;
int dstX0 = _flipX ? _window.Width - dstPaddingX : dstPaddingX;
int dstX1 = _flipX ? dstPaddingX : _window.Width - dstPaddingX;
int dstY0 = _flipY ? dstPaddingY : _window.Height - dstPaddingY;
int dstY1 = _flipY ? _window.Height - dstPaddingY : dstPaddingY;
GL.Viewport(0, 0, _window.Width, _window.Height);
if (_srcFb == 0)
{
_srcFb = GL.GenFramebuffer();
}
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, _srcFb);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, 0);
GL.FramebufferTexture(FramebufferTarget.ReadFramebuffer, FramebufferAttachment.ColorAttachment0, _readTex.Handle, 0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.Disable(EnableCap.FramebufferSrgb);
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Linear);
if (FramebufferSrgb)
{
GL.Enable(EnableCap.FramebufferSrgb);
}
}
public void Copy(
GalImage srcImage,
GalImage dstImage,
long srcKey,
long dstKey,
int srcLayer,
int dstLayer,
int srcX0,
int srcY0,
int srcX1,
int srcY1,
int dstX0,
int dstY0,
int dstX1,
int dstY1)
{
if (_texture.TryGetImageHandler(srcKey, out ImageHandler srcTex) &&
_texture.TryGetImageHandler(dstKey, out ImageHandler dstTex))
{
if (srcTex.HasColor != dstTex.HasColor ||
srcTex.HasDepth != dstTex.HasDepth ||
srcTex.HasStencil != dstTex.HasStencil)
{
throw new NotImplementedException();
}
if (_srcFb == 0)
{
_srcFb = GL.GenFramebuffer();
}
if (_dstFb == 0)
{
_dstFb = GL.GenFramebuffer();
}
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, _srcFb);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, _dstFb);
FramebufferAttachment attachment = GetAttachment(srcTex);
if (ImageUtils.IsArray(srcImage.TextureTarget) && srcLayer > 0)
{
GL.FramebufferTextureLayer(FramebufferTarget.ReadFramebuffer, attachment, srcTex.Handle, 0, srcLayer);
}
else
{
GL.FramebufferTexture(FramebufferTarget.ReadFramebuffer, attachment, srcTex.Handle, 0);
}
if (ImageUtils.IsArray(dstImage.TextureTarget) && dstLayer > 0)
{
GL.FramebufferTextureLayer(FramebufferTarget.DrawFramebuffer, attachment, dstTex.Handle, 0, dstLayer);
}
else
{
GL.FramebufferTexture(FramebufferTarget.DrawFramebuffer, attachment, dstTex.Handle, 0);
}
BlitFramebufferFilter filter = BlitFramebufferFilter.Nearest;
if (srcTex.HasColor)
{
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
filter = BlitFramebufferFilter.Linear;
}
ClearBufferMask mask = GetClearMask(srcTex);
GL.BlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
}
}
public void Reinterpret(long key, GalImage newImage)
{
if (!_texture.TryGetImage(key, out GalImage oldImage))
{
return;
}
if (newImage.Format == oldImage.Format &&
newImage.Width == oldImage.Width &&
newImage.Height == oldImage.Height &&
newImage.Depth == oldImage.Depth &&
newImage.LayerCount == oldImage.LayerCount &&
newImage.TextureTarget == oldImage.TextureTarget)
{
return;
}
if (_copyPbo == 0)
{
_copyPbo = GL.GenBuffer();
}
GL.BindBuffer(BufferTarget.PixelPackBuffer, _copyPbo);
// The buffer should be large enough to hold the largest texture.
int bufferSize = Math.Max(ImageUtils.GetSize(oldImage),
ImageUtils.GetSize(newImage));
GL.BufferData(BufferTarget.PixelPackBuffer, bufferSize, IntPtr.Zero, BufferUsageHint.StreamCopy);
if (!_texture.TryGetImageHandler(key, out ImageHandler cachedImage))
{
throw new InvalidOperationException();
}
(_, PixelFormat format, PixelType type) = OglEnumConverter.GetImageFormat(cachedImage.Format);
TextureTarget target = ImageUtils.GetTextureTarget(newImage.TextureTarget);
GL.BindTexture(target, cachedImage.Handle);
GL.GetTexImage(target, 0, format, type, IntPtr.Zero);
GL.BindBuffer(BufferTarget.PixelPackBuffer, 0);
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, _copyPbo);
GL.PixelStore(PixelStoreParameter.UnpackRowLength, oldImage.Width);
_texture.Create(key, ImageUtils.GetSize(newImage), newImage);
GL.PixelStore(PixelStoreParameter.UnpackRowLength, 0);
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, 0);
}
private static FramebufferAttachment GetAttachment(ImageHandler cachedImage)
{
if (cachedImage.HasColor)
{
return FramebufferAttachment.ColorAttachment0;
}
else if (cachedImage.HasDepth && cachedImage.HasStencil)
{
return FramebufferAttachment.DepthStencilAttachment;
}
else if (cachedImage.HasDepth)
{
return FramebufferAttachment.DepthAttachment;
}
else if (cachedImage.HasStencil)
{
return FramebufferAttachment.StencilAttachment;
}
else
{
throw new InvalidOperationException();
}
}
private static ClearBufferMask GetClearMask(ImageHandler cachedImage)
{
return (cachedImage.HasColor ? ClearBufferMask.ColorBufferBit : 0) |
(cachedImage.HasDepth ? ClearBufferMask.DepthBufferBit : 0) |
(cachedImage.HasStencil ? ClearBufferMask.StencilBufferBit : 0);
}
}
}