From e9b406d134cca9f30b6ff70203562375fd871a53 Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Mon, 9 Mar 2015 18:17:45 +0600
Subject: [PATCH] Add special frame buffer flag for Ogre Battle backgrounds. It
 should protect such buffers from being overwritten by
 FrameBufferToRDRAM::CopyToRDRAM.

---
 FrameBuffer.cpp | 4 ++--
 FrameBuffer.h   | 1 +
 gSP.cpp         | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/FrameBuffer.cpp b/FrameBuffer.cpp
index 6aa9b66f..f9e7c140 100644
--- a/FrameBuffer.cpp
+++ b/FrameBuffer.cpp
@@ -390,7 +390,7 @@ void FrameBufferList::saveBuffer(u32 _address, u16 _format, u16 _size, u16 _widt
 
 	m_pCurrent->m_cleared = false;
 	m_pCurrent->m_isDepthBuffer = _address == gDP.depthImageAddress;
-	m_pCurrent->m_isPauseScreen = false;
+	m_pCurrent->m_isPauseScreen = m_pCurrent->m_isOBScreen = false;
 
 	gSP.changed |= CHANGED_TEXTURE;
 }
@@ -743,7 +743,7 @@ void FrameBufferToRDRAM::CopyToRDRAM(u32 _address) {
 	if (VI.width == 0) // H width is zero. Don't copy
 		return;
 	FrameBuffer *pBuffer = frameBufferList().findBuffer(_address);
-	if (pBuffer == NULL || pBuffer->m_width < VI.width)
+	if (pBuffer == NULL || pBuffer->m_width < VI.width || pBuffer->m_isOBScreen)
 		return;
 
 	_address = pBuffer->m_startAddress;
diff --git a/FrameBuffer.h b/FrameBuffer.h
index e479765b..57e9a8cc 100644
--- a/FrameBuffer.h
+++ b/FrameBuffer.h
@@ -25,6 +25,7 @@ struct FrameBuffer
 	bool m_cfb;
 	bool m_isDepthBuffer;
 	bool m_isPauseScreen;
+	bool m_isOBScreen;
 	bool m_needHeightCorrection;
 
 	GLuint m_FBO;
diff --git a/gSP.cpp b/gSP.cpp
index 86bc3cbd..9e28cdba 100644
--- a/gSP.cpp
+++ b/gSP.cpp
@@ -2105,6 +2105,9 @@ void _drawYUVImageToFrameBuffer(const ObjCoordinates & _objCoords)
 		}
 		dst += ci_width - 16;
 	}
+	FrameBuffer *pBuffer = frameBufferList().getCurrent();
+	if (pBuffer != NULL)
+		pBuffer->m_isOBScreen = true;
 }
 
 void gSPObjRectangle(u32 sp)