From f63d049adc268bc71ac87c2b781e2f44f60da1f5 Mon Sep 17 00:00:00 2001
From: Mitchell Stokes <mogurijin@gmail.com>
Date: Wed, 31 Aug 2011 05:51:51 +0000
Subject: BGE: Adding two new functions to bge.render to allow users to change
 the anisotropic filtering level used by textures:   *
 setAnisotropicFiltering(level)   * getAnisotropicFiltering()

---
 source/gameengine/Rasterizer/RAS_IRasterizer.h              |  3 +++
 .../RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp           | 13 +++++++++++++
 .../Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h  |  5 +++++
 3 files changed, 21 insertions(+)

(limited to 'source/gameengine/Rasterizer')

diff --git a/source/gameengine/Rasterizer/RAS_IRasterizer.h b/source/gameengine/Rasterizer/RAS_IRasterizer.h
index 305e2bca756..c46ebf742a0 100644
--- a/source/gameengine/Rasterizer/RAS_IRasterizer.h
+++ b/source/gameengine/Rasterizer/RAS_IRasterizer.h
@@ -417,6 +417,9 @@ public:
 
 	virtual void	SetBlendingMode(int blendmode)=0;
 	virtual void	SetFrontFace(bool ccw)=0;
+
+	virtual void	SetAnisotropicFiltering(short level)=0;
+	virtual short	GetAnisotropicFiltering()=0;
 	
 	
 #ifdef WITH_CXX_GUARDEDALLOC
diff --git a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp
index 23e0a50ed6f..50d034a5a5a 100644
--- a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp
+++ b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp
@@ -99,12 +99,16 @@ RAS_OpenGLRasterizer::RAS_OpenGLRasterizer(RAS_ICanvas* canvas)
 		hinterlace_mask[i] = (i&1)*0xFFFFFFFF;
 	}
 	hinterlace_mask[32] = 0;
+
+	m_prevafvalue = GPU_get_anisotropic();
 }
 
 
 
 RAS_OpenGLRasterizer::~RAS_OpenGLRasterizer()
 {
+	// Restore the previous AF value
+	GPU_set_anisotropic(m_prevafvalue);
 }
 
 bool RAS_OpenGLRasterizer::Init()
@@ -1204,3 +1208,12 @@ void RAS_OpenGLRasterizer::SetFrontFace(bool ccw)
 	m_last_frontface = ccw;
 }
 
+void RAS_OpenGLRasterizer::SetAnisotropicFiltering(short level)
+{
+	GPU_set_anisotropic((float)level);
+}
+
+short RAS_OpenGLRasterizer::GetAnisotropicFiltering()
+{
+	return (short)GPU_get_anisotropic();
+}
diff --git a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h
index 54fab906049..61568df91eb 100644
--- a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h
+++ b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h
@@ -94,6 +94,8 @@ class RAS_OpenGLRasterizer : public RAS_IRasterizer
 	bool			m_setfocallength;
 	int				m_noOfScanlines;
 
+	short			m_prevafvalue;
+
 	//motion blur
 	int	m_motionblur;
 	float	m_motionblurvalue;
@@ -294,6 +296,9 @@ public:
 	virtual void	SetBlendingMode(int blendmode);
 	virtual void	SetFrontFace(bool ccw);
 	
+	virtual void	SetAnisotropicFiltering(short level);
+	virtual short	GetAnisotropicFiltering();
+	
 	
 #ifdef WITH_CXX_GUARDEDALLOC
 public:
-- 
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