From f39e89ece79436f5058bb58d50a1a4dcd6823f4e Mon Sep 17 00:00:00 2001
From: ZenoArrows <129334871+ZenoArrows@users.noreply.github.com>
Date: Tue, 17 Sep 2024 20:30:50 +0200
Subject: Add area sampling scaler to allow for super-sampled anti-aliasing.
 (#7304)

* Add area sampling scaler to allow for super-sampled anti-aliasing.

* Area scaling filter doesn't have a scaling level.

* Add further clarification to the tooltip on how to achieve supersampling.

* ShaderHelper: Merge the two CompileProgram functions.

* Convert tabs to spaces in area scaling shaders

* Fixup Vulkan and OpenGL project files.

* AreaScaling: Replace texture() by texelFetch() and use integer vectors.

No functional difference, but it cleans up the code a bit.

* AreaScaling: Delete unused sharpening level member.

Also rename _scale to _sharpeningLevel for clarity and consistency.

* AreaScaling: Delete unused scaleX/scaleY uniforms.

* AreaScaling: Force the alpha to 1 when storing the pixel.

* AreaScaling: Remove left-over sharpening buffer.
---
 .../Effects/ShaderHelper.cs                        | 23 +++++++++++-----------
 1 file changed, 11 insertions(+), 12 deletions(-)

(limited to 'src/Ryujinx.Graphics.OpenGL/Effects/ShaderHelper.cs')

diff --git a/src/Ryujinx.Graphics.OpenGL/Effects/ShaderHelper.cs b/src/Ryujinx.Graphics.OpenGL/Effects/ShaderHelper.cs
index c25fe5b2..637b2fba 100644
--- a/src/Ryujinx.Graphics.OpenGL/Effects/ShaderHelper.cs
+++ b/src/Ryujinx.Graphics.OpenGL/Effects/ShaderHelper.cs
@@ -1,4 +1,5 @@
 using OpenTK.Graphics.OpenGL;
+using Ryujinx.Common.Logging;
 
 namespace Ryujinx.Graphics.OpenGL.Effects
 {
@@ -6,18 +7,7 @@ namespace Ryujinx.Graphics.OpenGL.Effects
     {
         public static int CompileProgram(string shaderCode, ShaderType shaderType)
         {
-            var shader = GL.CreateShader(shaderType);
-            GL.ShaderSource(shader, shaderCode);
-            GL.CompileShader(shader);
-
-            var program = GL.CreateProgram();
-            GL.AttachShader(program, shader);
-            GL.LinkProgram(program);
-
-            GL.DetachShader(program, shader);
-            GL.DeleteShader(shader);
-
-            return program;
+            return CompileProgram(new string[] { shaderCode }, shaderType);
         }
 
         public static int CompileProgram(string[] shaders, ShaderType shaderType)
@@ -26,6 +16,15 @@ namespace Ryujinx.Graphics.OpenGL.Effects
             GL.ShaderSource(shader, shaders.Length, shaders, (int[])null);
             GL.CompileShader(shader);
 
+            GL.GetShader(shader, ShaderParameter.CompileStatus, out int isCompiled);
+            if (isCompiled == 0)
+            {
+                string log = GL.GetShaderInfoLog(shader);
+                Logger.Error?.Print(LogClass.Gpu, $"Failed to compile effect shader:\n\n{log}\n");
+                GL.DeleteShader(shader);
+                return 0;
+            }
+
             var program = GL.CreateProgram();
             GL.AttachShader(program, shader);
             GL.LinkProgram(program);
-- 
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