From 42750a74f82ee69cabfaf3c5497af6a8ebc13eca Mon Sep 17 00:00:00 2001 From: gdkchan Date: Mon, 7 Aug 2023 12:20:37 -0300 Subject: [PATCH] Do not add more code after alpha test discard on fragment shader (#5529) * Do not add more code after alpha test discard on fragment shader * Shader cache version bump --- .../Shader/DiskCache/DiskCacheHostStorage.cs | 2 +- .../Instructions/InstEmitFlowControl.cs | 14 ++++++++++---- .../Translation/EmitterContext.cs | 16 ++++++++++++---- 3 files changed, 23 insertions(+), 9 deletions(-) diff --git a/src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs b/src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs index 4bab165d..512ae94b 100644 --- a/src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs +++ b/src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs @@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache private const ushort FileFormatVersionMajor = 1; private const ushort FileFormatVersionMinor = 2; private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor; - private const uint CodeGenVersion = 4675; + private const uint CodeGenVersion = 5529; private const string SharedTocFileName = "shared.toc"; private const string SharedDataFileName = "shared.data"; diff --git a/src/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs b/src/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs index fc1a696f..7462fc5a 100644 --- a/src/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs +++ b/src/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs @@ -162,8 +162,10 @@ namespace Ryujinx.Graphics.Shader.Instructions if (op.Ccc == Ccc.T) { - context.PrepareForReturn(); - context.Return(); + if (context.PrepareForReturn()) + { + context.Return(); + } } else { @@ -174,8 +176,12 @@ namespace Ryujinx.Graphics.Shader.Instructions { Operand lblSkip = Label(); context.BranchIfFalse(lblSkip, cond); - context.PrepareForReturn(); - context.Return(); + + if (context.PrepareForReturn()) + { + context.Return(); + } + context.MarkLabel(lblSkip); } } diff --git a/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs b/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs index 08d4b915..614b275b 100644 --- a/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs +++ b/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs @@ -304,11 +304,11 @@ namespace Ryujinx.Graphics.Shader.Translation PrepareForVertexReturn(); } - public void PrepareForReturn() + public bool PrepareForReturn() { if (IsNonMain) { - return; + return true; } if (Config.LastInVertexPipeline && @@ -383,13 +383,13 @@ namespace Ryujinx.Graphics.Shader.Translation AlphaTestOp alphaTestOp = Config.GpuAccessor.QueryAlphaTestCompare(); - if (alphaTestOp != AlphaTestOp.Always && (Config.OmapTargets & 8) != 0) + if (alphaTestOp != AlphaTestOp.Always) { if (alphaTestOp == AlphaTestOp.Never) { this.Discard(); } - else + else if ((Config.OmapTargets & 8) != 0) { Instruction comparator = alphaTestOp switch { @@ -415,6 +415,12 @@ namespace Ryujinx.Graphics.Shader.Translation } } + // We don't need to output anything if alpha test always fails. + if (alphaTestOp == AlphaTestOp.Never) + { + return false; + } + int regIndexBase = 0; for (int rtIndex = 0; rtIndex < 8; rtIndex++) @@ -462,6 +468,8 @@ namespace Ryujinx.Graphics.Shader.Translation } } } + + return true; } private void GenerateAlphaToCoverageDitherDiscard()