From 6df25922354ea9663c1011054020f22bdcbb3034 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Sat, 26 Nov 2022 19:50:26 +0200
Subject: [PATCH] Direct3D11 shader support render target leak fix

---
 od-win32/direct3d11.cpp | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/od-win32/direct3d11.cpp b/od-win32/direct3d11.cpp
index f4c3407d..71effa3b 100644
--- a/od-win32/direct3d11.cpp
+++ b/od-win32/direct3d11.cpp
@@ -1357,7 +1357,7 @@ static bool psEffect_End(struct d3d11struct *d3d, struct shaderdata11 *s)
 static bool processshader(struct d3d11struct *d3d, struct shadertex *st, struct shaderdata11 *s, bool rendertarget)
 {
 	int uPasses, uPass, uIndex;
-	ID3D11RenderTargetView *lpRenderTarget;
+	ID3D11RenderTargetView *lpRenderTarget = NULL;
 	ID3D11RenderTargetView *lpNewRenderTarget;
 	struct shadertex *lpWorkTexture;
 
@@ -1391,8 +1391,9 @@ pass2:
 			psEffect_End(d3d, s);
 		}
 
-		if (lpRenderTarget)
+		if (lpRenderTarget) {
 			d3d->m_deviceContext->OMSetRenderTargets(1, &lpRenderTarget, NULL);
+		}
 		lpNewRenderTarget = NULL;
 
 		if (psEffect_hasPreProcess2(s) && lpWorkTexture == &s->lpWorkTexture1) {
@@ -1400,7 +1401,10 @@ pass2:
 			goto pass2;
 		}
 		
-		lpRenderTarget = NULL;
+		if (lpRenderTarget) {
+			lpRenderTarget->Release();
+			lpRenderTarget = NULL;
+		}
 	}
 
 	psEffect_SetMatrices(&d3d->m_matProj2, &d3d->m_matView2, &d3d->m_matWorld2, s);
@@ -1415,8 +1419,12 @@ pass2:
 	uPasses = 0;
 	if (psEffect_Begin(d3d, psEffect_Combine, &uPasses, &uIndex, s)) {
 		for (uPass = 0; uPass < uPasses; uPass++) {
-			if (!psEffect_BeginPass(d3d, s, uPass, uIndex))
-				return NULL;
+			if (!psEffect_BeginPass(d3d, s, uPass, uIndex)) {
+				if (lpRenderTarget) {
+					lpRenderTarget->Release();
+				}
+				return false;
+			}
 			d3d->m_deviceContext->DrawIndexed(6, 0, 0);
 			psEffect_EndPass(d3d, s);
 		}
@@ -1424,10 +1432,13 @@ pass2:
 	}
 
 	if (rendertarget) {
-
 		d3d->m_deviceContext->OMSetRenderTargets(1, &lpRenderTarget, NULL);
 	}
 
+	if (lpRenderTarget) {
+		lpRenderTarget->Release();
+	}
+
 	memcpy(st, &s->lpTempTexture, sizeof(struct shadertex));
 
 	return true;
-- 
2.47.3