GSDx: Free textures that have been in the unused texture pool for a few frames.

GSDx: Reset device on save state load.
GSDx: Made GSRenderer::ResetDevice() actually do the main function in its name and implemented InvalidateTextureCache().  If anything breaks, it's because of this change.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3067 96395faa-99c1-11dd-bbfe-3dabce05a288

plugins/GSdx/GS.cpp

@@ -368,6 +368,7 @@ EXPORT_C_(int) GSfreeze(int mode, GSFreezeData* data)
 	}
 	else if(mode == FREEZE_LOAD)
 	{
+		s_gs->ResetDevice();
 		return s_gs->Defrost(data);
 	}
 

plugins/GSdx/GSDevice.cpp

@@ -32,6 +32,7 @@ GSDevice::GSDevice()
 	, m_weavebob(NULL)
 	, m_blend(NULL)
 	, m_1x1(NULL)
+	, m_frame(0)
 {
 	memset(&m_vertices, 0, sizeof(m_vertices));
 
@@ -143,6 +144,7 @@ void GSDevice::Recycle(GSTexture* t)
 {
 	if(t)
 	{
+		t->last_frame_used = m_frame;
 		m_pool.push_front(t);
 		//printf("%d\n",m_pool.size());
 		while(m_pool.size() > 300)
@@ -154,6 +156,16 @@ void GSDevice::Recycle(GSTexture* t)
 	}
 }
 
+void GSDevice::AgePool()
+{
+	m_frame++;
+	while (m_pool.size() > 20 && m_frame - m_pool.back()->last_frame_used > 10)
+	{
+		delete m_pool.back();
+		m_pool.pop_back();
+	}
+}
+
 GSTexture* GSDevice::CreateRenderTarget(int w, int h, bool msaa, int format)
 {
 	return Fetch(GSTexture::RenderTarget, w, h, msaa, format);

plugins/GSdx/GSDevice.h

@@ -66,6 +66,7 @@ protected:
 	struct {size_t stride, start, count, limit;} m_vertices;
 	uint32 m_msaa;
 	DXGI_SAMPLE_DESC m_msaa_desc;
+	unsigned m_frame; // for ageing the pool
 
 	virtual GSTexture* Create(int type, int w, int h, bool msaa, int format) = 0;
 
@@ -146,4 +147,6 @@ public:
 	}
 
 	bool SetFeatureLevel(D3D_FEATURE_LEVEL level, bool compat_mode); // TODO: GSDeviceDX
+
+	void AgePool();
 };

plugins/GSdx/GSRenderer.h

@@ -81,6 +81,7 @@ public:
 	{
 		InvalidateTextureCache();
 		ResetPrim();
+		m_dev->Reset(1, 1);
 	}
 	virtual void VSync(int field);
 	virtual bool MakeSnapshot(const string& path);

plugins/GSdx/GSRendererHW.h

@@ -467,6 +467,7 @@ protected:
 		__super::VSync(field);
 
 		m_tc->IncAge();
+		m_dev->AgePool();
 
 		m_skip = 0;
 
@@ -478,10 +479,14 @@ protected:
 		}
 	}
 
+	void InvalidateTextureCache()
+	{
+		m_tc->RemoveAll();
+	}
+
 	void ResetDevice()
 	{
 		__super::ResetDevice();
-		m_tc->RemoveAll();
 	}
 
 	GSTexture* GetOutput(int i)

plugins/GSdx/GSRendererSW.h

@@ -49,4 +49,9 @@ public:
 
 	template<uint32 prim, uint32 tme, uint32 fst>
 	void VertexKick(bool skip);
+
+	void InvalidateTextureCache()
+	{
+		m_tc->RemoveAll();
+	}
 };

plugins/GSdx/GSTexture.h

@@ -60,6 +60,10 @@ public:
 
 	bool IsMSAA() const {return m_msaa;}
 
+	// frame number (arbitrary base) the texture was recycled on
+	// different purpose than texture cache ages, do not attempt to merge
+	unsigned last_frame_used;
+
 	bool LikelyOffset;
 	float OffsetHack_modx;
 	float OffsetHack_mody;