diff --git a/plugins/GSdx/GSDevice.h b/plugins/GSdx/GSDevice.h
index 04ddafb23d..0a5b629bec 100644
--- a/plugins/GSdx/GSDevice.h
+++ b/plugins/GSdx/GSDevice.h
@@ -141,7 +141,7 @@ public:
 
 	virtual GSTexture* Resolve(GSTexture* t) {return NULL;}
 
-	virtual GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0) {return NULL;}
+	virtual GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0, int ps_shader = 0) {return NULL;}
 
 	virtual void CopyRect(GSTexture* sTex, GSTexture* dTex, const GSVector4i& r) {}
 	virtual void StretchRect(GSTexture* sTex, const GSVector4& sRect, GSTexture* dTex, const GSVector4& dRect, int shader = 0, bool linear = true) {}
diff --git a/plugins/GSdx/GSDevice11.cpp b/plugins/GSdx/GSDevice11.cpp
index 2d97d52636..c4f4a77190 100644
--- a/plugins/GSdx/GSDevice11.cpp
+++ b/plugins/GSdx/GSDevice11.cpp
@@ -565,7 +565,7 @@ GSTexture* GSDevice11::Resolve(GSTexture* t)
 	return NULL;
 }
 
-GSTexture* GSDevice11::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format)
+GSTexture* GSDevice11::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format, int ps_shader)
 {
 	GSTexture* dst = NULL;
 
diff --git a/plugins/GSdx/GSDevice11.h b/plugins/GSdx/GSDevice11.h
index a4332b4a6a..0783c46329 100644
--- a/plugins/GSdx/GSDevice11.h
+++ b/plugins/GSdx/GSDevice11.h
@@ -184,7 +184,7 @@ public:
 
 	GSTexture* Resolve(GSTexture* t);
 
-	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0);
+	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0, int ps_shader = 0);
 
 	void CopyRect(GSTexture* sTex, GSTexture* dTex, const GSVector4i& r);
 
diff --git a/plugins/GSdx/GSDevice9.cpp b/plugins/GSdx/GSDevice9.cpp
index 5731203154..9ce70ba87a 100644
--- a/plugins/GSdx/GSDevice9.cpp
+++ b/plugins/GSdx/GSDevice9.cpp
@@ -768,7 +768,7 @@ GSTexture* GSDevice9::Resolve(GSTexture* t)
 	return NULL;
 }
 
-GSTexture* GSDevice9::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format)
+GSTexture* GSDevice9::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format, int ps_shader)
 {
 	GSTexture* dst = NULL;
 
diff --git a/plugins/GSdx/GSDevice9.h b/plugins/GSdx/GSDevice9.h
index b39ffcc0ab..8c4a17598e 100644
--- a/plugins/GSdx/GSDevice9.h
+++ b/plugins/GSdx/GSDevice9.h
@@ -209,7 +209,7 @@ public:
 
 	GSTexture* Resolve(GSTexture* t);
 
-	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0);
+	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0, int ps_shader = 0);
 
 	void CopyRect(GSTexture* sTex, GSTexture* dTex, const GSVector4i& r);
 
diff --git a/plugins/GSdx/GSDeviceOGL.cpp b/plugins/GSdx/GSDeviceOGL.cpp
index 829edc3540..9b091a5cf9 100644
--- a/plugins/GSdx/GSDeviceOGL.cpp
+++ b/plugins/GSdx/GSDeviceOGL.cpp
@@ -666,19 +666,19 @@ GSTexture* GSDeviceOGL::CreateOffscreen(int w, int h, int format)
 }
 
 // blit a texture into an offscreen buffer
-GSTexture* GSDeviceOGL::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format)
+GSTexture* GSDeviceOGL::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format, int ps_shader)
 {
+	if (format == 0)
+		format = GL_RGBA8;
+
 	ASSERT(src);
 	ASSERT(format == GL_RGBA8 || format == GL_R16UI);
 
-	if(format == 0) format = GL_RGBA8;
-
-	if(format != GL_RGBA8 && format != GL_R16UI) return NULL;
-
 	GSTexture* dst = CreateOffscreen(w, h, format);
+
 	GSVector4 dRect(0, 0, w, h);
 
-	StretchRect(src, sRect, dst, dRect, m_convert.ps[format == GL_R16UI ? 1 : 0]);
+	StretchRect(src, sRect, dst, dRect, m_convert.ps[ps_shader]);
 
 	return dst;
 }
diff --git a/plugins/GSdx/GSDeviceOGL.h b/plugins/GSdx/GSDeviceOGL.h
index 716ac987bf..532ded2a63 100644
--- a/plugins/GSdx/GSDeviceOGL.h
+++ b/plugins/GSdx/GSDeviceOGL.h
@@ -585,7 +585,7 @@ class GSDeviceOGL : public GSDevice
 	void InitPrimDateTexture(GSTexture* rt);
 	void RecycleDateTexture();
 
-	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0);
+	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0, int ps_shader = 0);
 
 	void CopyRect(GSTexture* sTex, GSTexture* dTex, const GSVector4i& r);
 	void StretchRect(GSTexture* sTex, const GSVector4& sRect, GSTexture* dTex, const GSVector4& dRect, int shader = 0, bool linear = true);
diff --git a/plugins/GSdx/GSDeviceSW.cpp b/plugins/GSdx/GSDeviceSW.cpp
index 0916f1ed2c..5518e5eecd 100644
--- a/plugins/GSdx/GSDeviceSW.cpp
+++ b/plugins/GSdx/GSDeviceSW.cpp
@@ -90,7 +90,7 @@ void GSDeviceSW::ClearStencil(GSTexture* t, uint8 c)
 	Clear(t, c);
 }
 
-GSTexture* GSDeviceSW::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format)
+GSTexture* GSDeviceSW::CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format, int ps_shader)
 {
 	GSTexture* dst = CreateOffscreen(w, h, format);
 
diff --git a/plugins/GSdx/GSDeviceSW.h b/plugins/GSdx/GSDeviceSW.h
index 4d398a8f18..2488ec974e 100644
--- a/plugins/GSdx/GSDeviceSW.h
+++ b/plugins/GSdx/GSDeviceSW.h
@@ -50,7 +50,7 @@ public:
 	void ClearDepth(GSTexture* t, float c);
 	void ClearStencil(GSTexture* t, uint8 c);
 
-	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0);
+	GSTexture* CopyOffscreen(GSTexture* src, const GSVector4& sRect, int w, int h, int format = 0, int ps_shader = 0);
 
 	void CopyRect(GSTexture* sTex, GSTexture* dTex, const GSVector4i& r);
 	void StretchRect(GSTexture* sTex, const GSVector4& sRect, GSTexture* dTex, const GSVector4& dRect, int shader = 0, bool linear = true);