From 48df329411413836c1e38788e0d8131a5dd61300 Mon Sep 17 00:00:00 2001
From: Miguel Borges de Freitas <92enen@gmail.com>
Date: Mon, 17 Jun 2024 11:03:53 +0100
Subject: [PATCH] Win: Make sure background is black

---
 src/Pyro.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Pyro.cpp b/src/Pyro.cpp
index b1657c1..eff5627 100644
--- a/src/Pyro.cpp
+++ b/src/Pyro.cpp
@@ -204,6 +204,12 @@ static int myrand()
 void CScreensaverPyro::Render()
 {
 #ifdef WIN32
+  ID3D11RenderTargetView* renderTargetView;
+  m_pContext->OMGetRenderTargets(1, &renderTargetView, nullptr);
+  float clearColor[4] = { 0.0f, 0.0f, 0.0f, 1.0f };
+  m_pContext->ClearRenderTargetView(renderTargetView, clearColor);
+  SAFE_RELEASE(renderTargetView);
+
   m_pContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
   UINT strides = sizeof(MYCUSTOMVERTEX), offsets = 0;
   m_pContext->IASetVertexBuffers(0, 1, &m_pVBuffer, &strides, &offsets);