From 91a6c53197887a15ca3914f6488850da8bb305f6 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Sat, 9 Apr 2022 17:06:09 +0200
Subject: [PATCH] Added blur_passes config

---
 example/hyprland.conf        | 3 +++
 src/config/ConfigManager.cpp | 1 +
 src/render/OpenGL.cpp        | 7 +++++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/example/hyprland.conf b/example/hyprland.conf
index db239c18..59dc6b07 100644
--- a/example/hyprland.conf
+++ b/example/hyprland.conf
@@ -30,6 +30,9 @@ decoration {
     rounding=10
     blur=1
     blur_size=8 # minimum 2
+    blur_passes=1 # minimum 1, more passes = more resource intensive.
+    # Your blur "amount" is blur_size * blur_passes, but high blur_size (over around 30-ish) will produce artifacts.
+    # if you want heavy blur, you need to up the blur_passes.
 }
 
 animations {
diff --git a/src/config/ConfigManager.cpp b/src/config/ConfigManager.cpp
index 8af72425..4d54406d 100644
--- a/src/config/ConfigManager.cpp
+++ b/src/config/ConfigManager.cpp
@@ -25,6 +25,7 @@ CConfigManager::CConfigManager() {
     configValues["decoration:rounding"].intValue = 1;
     configValues["decoration:blur"].intValue = 1;
     configValues["decoration:blur_size"].intValue = 8;
+    configValues["decoration:blur_passes"].intValue = 1;
 
     configValues["dwindle:pseudotile"].intValue = 0;
 
diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index b8bacd05..31934d98 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -324,6 +324,7 @@ void CHyprOpenGLImpl::renderTextureWithBlur(const CTexture& tex, float matrix[9]
     wlr_matrix_transpose(glMatrix, glMatrix);
 
     const auto RADIUS = g_pConfigManager->getInt("decoration:blur_size") + 2;
+    const auto BLURPASSES = g_pConfigManager->getInt("decoration:blur_passes");
     const auto PFRAMEBUFFER = &m_mMonitorFramebuffers[m_RenderData.pMonitor];
 
     auto drawWithShader = [&](CShader* pShader) {
@@ -352,8 +353,10 @@ void CHyprOpenGLImpl::renderTextureWithBlur(const CTexture& tex, float matrix[9]
         glDisableVertexAttribArray(pShader->texAttrib);
     };
 
-    drawWithShader(&m_shBLUR1); // horizontal pass
-    drawWithShader(&m_shBLUR2); // vertical pass
+    for (int i = 0; i < BLURPASSES; ++i) {
+        drawWithShader(&m_shBLUR1);  // horizontal pass
+        drawWithShader(&m_shBLUR2);  // vertical pass
+    }
 
     glBindTexture(tex.m_iTarget, 0);