From de587eb50a61d5099ceb4e756cb8c60b6026d7f3 Mon Sep 17 00:00:00 2001
From: Ven <tudurap.com@gmail.com>
Date: Sat, 26 Oct 2024 20:22:19 +0100
Subject: [PATCH] Fix pause menu having a black background, reverts PR #10115

---
 .../blaze3d/platform/GlStateManager.java.patch     | 12 ++++++++++++
 .../mojang/blaze3d/systems/RenderSystem.java.patch | 14 ++++++++++++++
 .../client/renderer/GameRenderer.java.patch        | 10 ++++++----
 3 files changed, 32 insertions(+), 4 deletions(-)
 create mode 100644 patches/minecraft/com/mojang/blaze3d/systems/RenderSystem.java.patch

diff --git a/patches/minecraft/com/mojang/blaze3d/platform/GlStateManager.java.patch b/patches/minecraft/com/mojang/blaze3d/platform/GlStateManager.java.patch
index aa078314f5..6b6ce56a7a 100644
--- a/patches/minecraft/com/mojang/blaze3d/platform/GlStateManager.java.patch
+++ b/patches/minecraft/com/mojang/blaze3d/platform/GlStateManager.java.patch
@@ -1,5 +1,17 @@
 --- a/com/mojang/blaze3d/platform/GlStateManager.java
 +++ b/com/mojang/blaze3d/platform/GlStateManager.java
+@@ -94,6 +_,11 @@
+         }
+     }
+ 
++    public static boolean _isBlendEnabled() {
++        RenderSystem.assertOnRenderThread();
++        return BLEND.mode.enabled;
++    }
++
+     public static void _disableBlend() {
+         RenderSystem.assertOnRenderThread();
+         BLEND.mode.disable();
 @@ -519,9 +_,17 @@
          }
      }
diff --git a/patches/minecraft/com/mojang/blaze3d/systems/RenderSystem.java.patch b/patches/minecraft/com/mojang/blaze3d/systems/RenderSystem.java.patch
new file mode 100644
index 0000000000..c9e0b8b1c3
--- /dev/null
+++ b/patches/minecraft/com/mojang/blaze3d/systems/RenderSystem.java.patch
@@ -0,0 +1,14 @@
+--- a/com/mojang/blaze3d/systems/RenderSystem.java
++++ b/com/mojang/blaze3d/systems/RenderSystem.java
+@@ -196,6 +_,11 @@
+         GlStateManager._depthMask(p_69459_);
+     }
+ 
++    public static boolean isBlendEnabled() {
++        assertOnRenderThread();
++        return GlStateManager._isBlendEnabled();
++    }
++
+     public static void enableBlend() {
+         assertOnRenderThread();
+         GlStateManager._enableBlend();
diff --git a/patches/minecraft/net/minecraft/client/renderer/GameRenderer.java.patch b/patches/minecraft/net/minecraft/client/renderer/GameRenderer.java.patch
index 2ff61dfcc8..5b973bb884 100644
--- a/patches/minecraft/net/minecraft/client/renderer/GameRenderer.java.patch
+++ b/patches/minecraft/net/minecraft/client/renderer/GameRenderer.java.patch
@@ -11,15 +11,17 @@
          }
      }
  
-@@ -171,8 +_,11 @@
+@@ -171,8 +_,13 @@
          if (!(f < 1.0F)) {
              PostChain postchain = this.minecraft.getShaderManager().getPostChain(BLUR_POST_CHAIN_ID, LevelTargetBundle.MAIN_TARGETS);
              if (postchain != null) {
-+                // FORGE: Blending the blur was removed in 1.21. This is necessary for screen layering to work properly. https://github.com/MinecraftForge/MinecraftForge/issues/10114
-+                RenderSystem.enableBlend();
++                boolean wasBlendEnabled = RenderSystem.isBlendEnabled();
++                if (wasBlendEnabled)
++                    RenderSystem.disableBlend();
                  postchain.setUniform("Radius", f);
                  postchain.process(this.minecraft.getMainRenderTarget(), this.resourcePool);
-+                RenderSystem.disableBlend();
++                if (wasBlendEnabled)
++                    RenderSystem.enableBlend();
              }
          }
      }