From 4635e24d62942a939529193523a947ca74cd5fa9 Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Sat, 23 Nov 2013 14:46:11 +0700
Subject: [PATCH] Add g_bIgnoreCFB option.

It is necessary for Zelda Pause Screen, otherwise it will be
replaced by blank data from RDRAM.
---
 FrameBuffer.cpp | 3 ++-
 FrameBuffer.h   | 1 +
 VI.cpp          | 2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/FrameBuffer.cpp b/FrameBuffer.cpp
index 2b65593c..74bdea2a 100644
--- a/FrameBuffer.cpp
+++ b/FrameBuffer.cpp
@@ -18,8 +18,9 @@
 
 bool g_bCopyToRDRAM = false;
 bool g_bCopyFromRDRAM = false;
-bool g_bCopyDepthToRDRAM = true;
+bool g_bCopyDepthToRDRAM = false;
 bool g_bUseFloatDepthTexture = true;
+bool g_bIgnoreCFB = true;
 static const GLint depthTextureInternalFormat = g_bUseFloatDepthTexture ? GL_R32F : GL_R16;
 static const GLenum depthTextureType =  g_bUseFloatDepthTexture ? GL_FLOAT : GL_UNSIGNED_INT;
 
diff --git a/FrameBuffer.h b/FrameBuffer.h
index 36a34715..e66ac8ca 100644
--- a/FrameBuffer.h
+++ b/FrameBuffer.h
@@ -33,6 +33,7 @@ extern bool g_bCopyToRDRAM;
 extern bool g_bCopyDepthToRDRAM;
 extern bool g_bCopyFromRDRAM;
 extern bool g_bUseFloatDepthTexture;
+extern bool g_bIgnoreCFB;
 
 void FrameBuffer_Init();
 void FrameBuffer_Destroy();
diff --git a/VI.cpp b/VI.cpp
index 5493b2d9..622eeeef 100644
--- a/VI.cpp
+++ b/VI.cpp
@@ -53,7 +53,7 @@ void VI_UpdateScreen()
 		VI.vStart = VI.vEnd = 0;
 
 	if (OGL.frameBufferTextures) {
-		const bool bCFB = (gSP.changed&CHANGED_CPU_FB_WRITE) == CHANGED_CPU_FB_WRITE;
+		const bool bCFB = !g_bIgnoreCFB && (gSP.changed&CHANGED_CPU_FB_WRITE) == CHANGED_CPU_FB_WRITE;
 		const bool bNeedUpdate = bCFB ? true : (*REG.VI_ORIGIN != VI.lastOrigin);// && gDP.colorImage.changed;
 
 		if (bNeedUpdate) {