From 7b6bd34a5853f4c615f444a27385b65eae7d33da Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Tue, 14 Jan 2020 19:50:47 +0100
Subject: [PATCH] - create the savepic framebuffer without multisampling.

It didn't work and doesn't need it so let's save that piece of video memory.
---
 source/common/rendering/gl/renderer/gl_renderbuffers.cpp | 3 ++-
 source/common/rendering/gl/renderer/gl_renderbuffers.h   | 3 ++-
 source/common/rendering/gl/renderer/gl_renderer.cpp      | 4 ++--
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/source/common/rendering/gl/renderer/gl_renderbuffers.cpp b/source/common/rendering/gl/renderer/gl_renderbuffers.cpp
index 37617cee8..1aaa6cd3a 100644
--- a/source/common/rendering/gl/renderer/gl_renderbuffers.cpp
+++ b/source/common/rendering/gl/renderer/gl_renderbuffers.cpp
@@ -44,8 +44,9 @@ namespace OpenGLRenderer
 //
 //==========================================================================
 
-FGLRenderBuffers::FGLRenderBuffers()
+FGLRenderBuffers::FGLRenderBuffers(int ms)
 {
+	gl_multisample = ms;
 	glGetIntegerv(GL_MAX_SAMPLES, &mMaxSamples);
 }
 
diff --git a/source/common/rendering/gl/renderer/gl_renderbuffers.h b/source/common/rendering/gl/renderer/gl_renderbuffers.h
index d1fb45666..88b7360f0 100644
--- a/source/common/rendering/gl/renderer/gl_renderbuffers.h
+++ b/source/common/rendering/gl/renderer/gl_renderbuffers.h
@@ -101,8 +101,9 @@ private:
 
 class FGLRenderBuffers
 {
+	int gl_multisample = 0;	// intentionally overload the global CVAR
 public:
-	FGLRenderBuffers();
+	FGLRenderBuffers(int ms);
 	~FGLRenderBuffers();
 
 	void Setup(int width, int height, int sceneWidth, int sceneHeight);
diff --git a/source/common/rendering/gl/renderer/gl_renderer.cpp b/source/common/rendering/gl/renderer/gl_renderer.cpp
index 560f8cbe4..7bde82962 100644
--- a/source/common/rendering/gl/renderer/gl_renderer.cpp
+++ b/source/common/rendering/gl/renderer/gl_renderer.cpp
@@ -88,8 +88,8 @@ FGLRenderer::FGLRenderer(OpenGLFrameBuffer *fb)
 
 void FGLRenderer::Initialize(int width, int height)
 {
-	mScreenBuffers = new FGLRenderBuffers();
-	mSaveBuffers = new FGLRenderBuffers();
+	mScreenBuffers = new FGLRenderBuffers(gl_multisample);
+	mSaveBuffers = new FGLRenderBuffers(0);
 	mBuffers = mScreenBuffers;
 	mPresentShader = new FPresentShader();
 	mPresent3dCheckerShader = new FPresent3DCheckerShader();