From f95336befec12441b7859f06ee4900079dd1b11b Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Sun, 30 Mar 2025 15:13:39 -0500
Subject: [PATCH] renderGL: setting to set settings to set stencil a

nd buffer size

it appears this may be the cause of visual glitches
---
 src/gui/gui.h                |  2 ++
 src/gui/render/renderGL.cpp  |  6 ++++--
 src/gui/render/renderGL1.cpp |  6 ++++--
 src/gui/settings.cpp         | 29 ++++++++++++++++++++++-------
 4 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/src/gui/gui.h b/src/gui/gui.h
index 522a03804..7ca2aabcf 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -1996,6 +1996,7 @@ class FurnaceGUI {
     int glBlueSize;
     int glAlphaSize;
     int glDepthSize;
+    int glSetBS;
     int glStencilSize;
     int glBufferSize;
     int glDoubleBuffer;
@@ -2248,6 +2249,7 @@ class FurnaceGUI {
       glBlueSize(8),
       glAlphaSize(0),
       glDepthSize(24),
+      glSetBS(0),
       glStencilSize(0),
       glBufferSize(32),
       glDoubleBuffer(1),
diff --git a/src/gui/render/renderGL.cpp b/src/gui/render/renderGL.cpp
index 9a5e29b91..8a10ad030 100644
--- a/src/gui/render/renderGL.cpp
+++ b/src/gui/render/renderGL.cpp
@@ -625,8 +625,10 @@ void FurnaceGUIRenderGL::preInit(const DivConfig& conf) {
   SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,conf.getInt("glAlphaSize",0));
   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,conf.getInt("glDoubleBuffer",1));
   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,conf.getInt("glDepthSize",24));
-  SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,conf.getInt("glStencilSize",0));
-  SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE,conf.getInt("glBufferSize",32));
+  if (conf.getInt("glSetBS",0)) {
+    SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,conf.getInt("glStencilSize",0));
+    SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE,conf.getInt("glBufferSize",32));
+  }
 }
 
 #define LOAD_PROC_MANDATORY(_v,_t,_s) \
diff --git a/src/gui/render/renderGL1.cpp b/src/gui/render/renderGL1.cpp
index 8468a21c9..e689c379d 100644
--- a/src/gui/render/renderGL1.cpp
+++ b/src/gui/render/renderGL1.cpp
@@ -279,8 +279,10 @@ void FurnaceGUIRenderGL1::preInit(const DivConfig& conf) {
   SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,conf.getInt("glAlphaSize",0));
   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,conf.getInt("glDoubleBuffer",1));
   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,conf.getInt("glDepthSize",24));
-  SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,conf.getInt("glStencilSize",0));
-  SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE,conf.getInt("glBufferSize",32));
+  if (conf.getInt("glSetBS",0)) {
+    SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,conf.getInt("glStencilSize",0));
+    SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE,conf.getInt("glBufferSize",32));
+  }
 }
 
 #define LOAD_PROC_MANDATORY(_v,_t,_s) \
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index 8d92374b9..bdbba3584 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -705,16 +705,26 @@ void FurnaceGUI::drawSettings() {
               if (settings.glDepthSize>128) settings.glDepthSize=128;
               settingsChanged=true;
             }
-            if (ImGui::InputInt(_("Stencil buffer size"),&settings.glStencilSize)) {
-              if (settings.glStencilSize<0) settings.glStencilSize=0;
-              if (settings.glStencilSize>32) settings.glStencilSize=32;
+            
+            bool glSetBSB=settings.glSetBS;
+            if (ImGui::Checkbox(_("Set stencil and buffer sizes"),&glSetBSB)) {
+              settings.glSetBS=glSetBSB;
               settingsChanged=true;
             }
-            if (ImGui::InputInt(_("Buffer size"),&settings.glBufferSize)) {
-              if (settings.glBufferSize<0) settings.glBufferSize=0;
-              if (settings.glBufferSize>128) settings.glBufferSize=128;
-              settingsChanged=true;
+
+            if (settings.glSetBS) {
+              if (ImGui::InputInt(_("Stencil buffer size"),&settings.glStencilSize)) {
+                if (settings.glStencilSize<0) settings.glStencilSize=0;
+                if (settings.glStencilSize>32) settings.glStencilSize=32;
+                settingsChanged=true;
+              }
+              if (ImGui::InputInt(_("Buffer size"),&settings.glBufferSize)) {
+                if (settings.glBufferSize<0) settings.glBufferSize=0;
+                if (settings.glBufferSize>128) settings.glBufferSize=128;
+                settingsChanged=true;
+              }
             }
+
             bool glDoubleBufferB=settings.glDoubleBuffer;
             if (ImGui::Checkbox(_("Double buffer"),&glDoubleBufferB)) {
               settings.glDoubleBuffer=glDoubleBufferB;
@@ -4841,6 +4851,7 @@ void FurnaceGUI::readConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
     settings.glBlueSize=conf.getInt("glBlueSize",8);
     settings.glAlphaSize=conf.getInt("glAlphaSize",0);
     settings.glDepthSize=conf.getInt("glDepthSize",24);
+    settings.glSetBS=conf.getInt("glSetBS",0);
     settings.glStencilSize=conf.getInt("glStencilSize",0);
     settings.glBufferSize=conf.getInt("glBufferSize",32);
     settings.glDoubleBuffer=conf.getInt("glDoubleBuffer",1);
@@ -5395,7 +5406,9 @@ void FurnaceGUI::readConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
   clampSetting(settings.glBlueSize,0,32);
   clampSetting(settings.glAlphaSize,0,32);
   clampSetting(settings.glDepthSize,0,128);
+  clampSetting(settings.glSetBS,0,1);
   clampSetting(settings.glStencilSize,0,32);
+  clampSetting(settings.glBufferSize,0,128);
   clampSetting(settings.glDoubleBuffer,0,1);
   clampSetting(settings.backupEnable,0,1);
   clampSetting(settings.backupInterval,10,86400);
@@ -5432,7 +5445,9 @@ void FurnaceGUI::writeConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
     conf.set("glBlueSize",settings.glBlueSize);
     conf.set("glAlphaSize",settings.glAlphaSize);
     conf.set("glDepthSize",settings.glDepthSize);
+    conf.set("glSetBS",settings.glSetBS);
     conf.set("glStencilSize",settings.glStencilSize);
+    conf.set("glBufferSize",settings.glBufferSize);
     conf.set("glDoubleBuffer",settings.glDoubleBuffer);
 
     conf.set("vsync",settings.vsync);