diff --git a/DDrawCompat/Config/Config.cpp b/DDrawCompat/Config/Config.cpp
index 248f74d..16c956f 100644
--- a/DDrawCompat/Config/Config.cpp
+++ b/DDrawCompat/Config/Config.cpp
@@ -8,6 +8,7 @@ namespace Config
 	Settings::DesktopColorDepth desktopColorDepth;
 	Settings::DisplayFilter displayFilter;
 	Settings::DisplayResolution displayResolution;
+	Settings::RenderColorDepth renderColorDepth;
 	Settings::SupportedResolutions supportedResolutions;
 	Settings::TextureFilter textureFilter;
 	Settings::ThreadPriorityBoost threadPriorityBoost;
diff --git a/DDrawCompat/Config/Config.h b/DDrawCompat/Config/Config.h
index 41192ab..1b39fe0 100644
--- a/DDrawCompat/Config/Config.h
+++ b/DDrawCompat/Config/Config.h
@@ -6,6 +6,7 @@
 #include <Config/Settings/DesktopColorDepth.h>
 #include <Config/Settings/DisplayFilter.h>
 #include <Config/Settings/DisplayResolution.h>
+#include <Config/Settings/RenderColorDepth.h>
 #include <Config/Settings/SupportedResolutions.h>
 #include <Config/Settings/TextureFilter.h>
 #include <Config/Settings/ThreadPriorityBoost.h>
@@ -22,6 +23,7 @@ namespace Config
 	extern Settings::DesktopColorDepth desktopColorDepth;
 	extern Settings::DisplayFilter displayFilter;
 	extern Settings::DisplayResolution displayResolution;
+	extern Settings::RenderColorDepth renderColorDepth;
 	extern Settings::SupportedResolutions supportedResolutions;
 	extern Settings::TextureFilter textureFilter;
 	extern Settings::ThreadPriorityBoost threadPriorityBoost;
diff --git a/DDrawCompat/Config/Settings/RenderColorDepth.h b/DDrawCompat/Config/Settings/RenderColorDepth.h
new file mode 100644
index 0000000..ebb0b13
--- /dev/null
+++ b/DDrawCompat/Config/Settings/RenderColorDepth.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <Config/MappedSetting.h>
+
+namespace Config
+{
+	namespace Settings
+	{
+		class RenderColorDepth : public MappedSetting<unsigned>
+		{
+		public:
+			RenderColorDepth()
+				: MappedSetting("RenderColorDepth", "app", { {"app", 0}, {"16", 16}, {"32", 32} })
+			{
+			}
+		};
+	}
+}
diff --git a/DDrawCompat/D3dDdi/Device.cpp b/DDrawCompat/D3dDdi/Device.cpp
index 09ea596..3cc7a09 100644
--- a/DDrawCompat/D3dDdi/Device.cpp
+++ b/DDrawCompat/D3dDdi/Device.cpp
@@ -86,29 +86,11 @@ namespace D3dDdi
 		return it != m_resources.end() ? it->second.get() : nullptr;
 	}
 
-	void Device::prepareForBlt(HANDLE resource, UINT subResourceIndex, bool isReadOnly)
-	{
-		auto it = m_resources.find(resource);
-		if (it != m_resources.end())
-		{
-			it->second->prepareForBlt(subResourceIndex, isReadOnly);
-		}
-	}
-
-	void Device::prepareForRendering(HANDLE resource, UINT subResourceIndex)
-	{
-		auto it = m_resources.find(resource);
-		if (it != m_resources.end())
-		{
-			it->second->prepareForRendering(subResourceIndex);
-		}
-	}
-
-	void Device::prepareForRendering()
+	void Device::prepareForGpuWrite()
 	{
 		if (m_renderTarget)
 		{
-			m_renderTarget->prepareForRendering(m_renderTargetSubResourceIndex);
+			m_renderTarget->prepareForGpuWrite(m_renderTargetSubResourceIndex);
 		}
 	}
 
@@ -152,7 +134,12 @@ namespace D3dDdi
 		{
 			return it->second->blt(*data);
 		}
-		prepareForBlt(data->hSrcResource, data->SrcSubResourceIndex, true);
+
+		it = m_resources.find(data->hSrcResource);
+		if (it != m_resources.end())
+		{
+			it->second->prepareForBltSrc(*data);
+		}
 		return m_origVtable.pfnBlt(m_device, data);
 	}
 
@@ -162,7 +149,7 @@ namespace D3dDdi
 		m_state.flush();
 		if (data->Flags & D3DCLEAR_TARGET)
 		{
-			prepareForRendering();
+			prepareForGpuWrite();
 		}
 		return m_origVtable.pfnClear(m_device, data, numRect, rect);
 	}
@@ -258,13 +245,11 @@ namespace D3dDdi
 	HRESULT Device::pfnDrawIndexedPrimitive2(const D3DDDIARG_DRAWINDEXEDPRIMITIVE2* data,
 		UINT /*indicesSize*/, const void* indexBuffer, const UINT* flagBuffer)
 	{
-		prepareForRendering();
 		return m_drawPrimitive.drawIndexed(*data, static_cast<const UINT16*>(indexBuffer), flagBuffer);
 	}
 
 	HRESULT Device::pfnDrawPrimitive(const D3DDDIARG_DRAWPRIMITIVE* data, const UINT* flagBuffer)
 	{
-		prepareForRendering();
 		return m_drawPrimitive.draw(*data, flagBuffer);
 	}
 
@@ -312,16 +297,27 @@ namespace D3dDdi
 	HRESULT Device::pfnPresent(const D3DDDIARG_PRESENT* data)
 	{
 		flushPrimitives();
-		prepareForBlt(data->hSrcResource, data->SrcSubResourceIndex, true);
-		return m_origVtable.pfnPresent(m_device, data);
+		auto d = *data;
+		auto resource = getResource(data->hSrcResource);
+		if (resource)
+		{
+			d.hSrcResource = resource->prepareForGpuRead(data->SrcSubResourceIndex);
+		}
+		return m_origVtable.pfnPresent(m_device, &d);
 	}
 
 	HRESULT Device::pfnPresent1(D3DDDIARG_PRESENT1* data)
 	{
 		flushPrimitives();
+		std::vector<D3DDDIARG_PRESENTSURFACE> srcResources(data->phSrcResources, data->phSrcResources + data->SrcResources);
+		data->phSrcResources = srcResources.data();
 		for (UINT i = 0; i < data->SrcResources; ++i)
 		{
-			prepareForBlt(data->phSrcResources[i].hResource, data->phSrcResources[i].SubResourceIndex, true);
+			auto resource = getResource(srcResources[i].hResource);
+			if (resource)
+			{
+				srcResources[i].hResource = resource->prepareForGpuRead(srcResources[i].SubResourceIndex);
+			}
 		}
 		return m_origVtable.pfnPresent1(m_device, data);
 	}
diff --git a/DDrawCompat/D3dDdi/Device.h b/DDrawCompat/D3dDdi/Device.h
index 2db86bd..ee8a377 100644
--- a/DDrawCompat/D3dDdi/Device.h
+++ b/DDrawCompat/D3dDdi/Device.h
@@ -55,9 +55,7 @@ namespace D3dDdi
 
 		HRESULT createPrivateResource(D3DDDIARG_CREATERESOURCE2& data);
 		void flushPrimitives() { m_drawPrimitive.flushPrimitives(); }
-		void prepareForBlt(HANDLE resource, UINT subResourceIndex, bool isReadOnly);
-		void prepareForRendering(HANDLE resource, UINT subResourceIndex);
-		void prepareForRendering();
+		void prepareForGpuWrite();
 		void setRenderTarget(const D3DDDIARG_SETRENDERTARGET& data);
 		void updateConfig();
 
diff --git a/DDrawCompat/D3dDdi/DeviceState.cpp b/DDrawCompat/D3dDdi/DeviceState.cpp
index f241735..73a1c7a 100644
--- a/DDrawCompat/D3dDdi/DeviceState.cpp
+++ b/DDrawCompat/D3dDdi/DeviceState.cpp
@@ -354,7 +354,6 @@ namespace D3dDdi
 	{
 		m_app.renderTarget = *data;
 		m_changedStates |= CS_RENDER_TARGET;
-		m_device.setRenderTarget(*data);
 		return S_OK;
 	}
 
@@ -509,6 +508,7 @@ namespace D3dDdi
 	{
 		if (setData(renderTarget, m_current.renderTarget, m_device.getOrigVtable().pfnSetRenderTarget))
 		{
+			m_device.setRenderTarget(m_app.renderTarget);
 			LOG_DS << renderTarget;
 		}
 	}
diff --git a/DDrawCompat/D3dDdi/DrawPrimitive.cpp b/DDrawCompat/D3dDdi/DrawPrimitive.cpp
index 6c912f9..86e735b 100644
--- a/DDrawCompat/D3dDdi/DrawPrimitive.cpp
+++ b/DDrawCompat/D3dDdi/DrawPrimitive.cpp
@@ -597,6 +597,7 @@ namespace D3dDdi
 		}
 
 		LOG_DEBUG << "Flushing " << m_batched.primitiveCount << " primitives of type " << m_batched.primitiveType;
+		m_device.prepareForGpuWrite();
 		return m_batched.indices.empty() ? flush(flagBuffer) : flushIndexed(flagBuffer);
 	}
 
diff --git a/DDrawCompat/D3dDdi/Resource.cpp b/DDrawCompat/D3dDdi/Resource.cpp
index bd1ab3f..2b3d34d 100644
--- a/DDrawCompat/D3dDdi/Resource.cpp
+++ b/DDrawCompat/D3dDdi/Resource.cpp
@@ -25,7 +25,9 @@ namespace
 	const UINT g_resourceTypeFlags = getResourceTypeFlags().Value;
 	RECT g_presentationRect = {};
 	RECT g_primaryRect = {};
+	
 	D3DDDIFORMAT g_formatOverride = D3DDDIFMT_UNKNOWN;
+	std::pair<D3DDDIMULTISAMPLE_TYPE, UINT> g_msaaOverride = {};
 
 	RECT calculatePresentationRect()
 	{
@@ -106,7 +108,9 @@ namespace D3dDdi
 		, m_fixedData(data)
 		, m_lockBuffer(nullptr, &heapFree)
 		, m_lockResource(nullptr, ResourceDeleter(device, device.getOrigVtable().pfnDestroyResource))
-		, m_customSurface{}
+		, m_msaaSurface{}
+		, m_msaaResolvedSurface{}
+		, m_formatConfig(D3DDDIFMT_UNKNOWN)
 		, m_multiSampleConfig{ D3DDDIMULTISAMPLE_NONE, 0 }
 		, m_isSurfaceRepoResource(SurfaceRepository::inCreateSurface())
 	{
@@ -133,6 +137,7 @@ namespace D3dDdi
 
 		fixResourceData();
 		m_formatInfo = getFormatInfo(m_fixedData.Format);
+		m_formatConfig = m_fixedData.Format;
 
 		HRESULT result = m_device.createPrivateResource(m_fixedData);
 		if (FAILED(result))
@@ -195,31 +200,33 @@ namespace D3dDdi
 		{
 			if (srcResource)
 			{
-				srcResource->prepareForBlt(data.SrcSubResourceIndex, true);
+				srcResource->prepareForBltSrc(data);
 			}
-			HRESULT result = splitBlt(data, data.DstSubResourceIndex, data.DstRect, data.SrcRect);
-			notifyLock(data.DstSubResourceIndex);
-			return result;
+			return splitBlt(data, data.DstSubResourceIndex, data.DstRect, data.SrcRect);
 		}
-		else if (srcResource)
+		
+		if (srcResource)
 		{
 			if (srcResource->isOversized())
 			{
-				prepareForBlt(data.DstSubResourceIndex, false);
-				HRESULT result = srcResource->splitBlt(data, data.SrcSubResourceIndex, data.SrcRect, data.DstRect);
-				srcResource->notifyLock(data.SrcSubResourceIndex);
-				return result;
+				if (m_lockResource)
+				{
+					loadVidMemResource(data.DstSubResourceIndex);
+					clearUpToDateFlags(data.DstSubResourceIndex);
+					m_lockData[data.DstSubResourceIndex].isVidMemUpToDate = true;
+				}
+				return srcResource->splitBlt(data, data.SrcSubResourceIndex, data.SrcRect, data.DstRect);
 			}
-			else if (m_fixedData.Flags.Primary)
+
+			if (m_fixedData.Flags.Primary)
 			{
 				return presentationBlt(data, srcResource);
 			}
-			else
-			{
-				return sysMemPreferredBlt(data, *srcResource);
-			}
+
+			return sysMemPreferredBlt(data, *srcResource);
 		}
-		prepareForBlt(data.DstSubResourceIndex, false);
+		
+		prepareForBltDst(data);
 		return m_device.getOrigVtable().pfnBlt(m_device, &data);
 	}
 
@@ -227,14 +234,15 @@ namespace D3dDdi
 	{
 		LOG_FUNC("Resource::bltLock", data);
 
+		loadSysMemResource(data.SubResourceIndex);
+
 		auto& lockData = m_lockData[data.SubResourceIndex];
-		if (!lockData.isSysMemUpToDate)
-		{
-			copyToSysMem(data.SubResourceIndex);
-		}
-		lockData.isVidMemUpToDate &= data.Flags.ReadOnly;
-		lockData.isCustomUpToDate &= data.Flags.ReadOnly;
 		lockData.qpcLastForcedLock = Time::queryPerformanceCounter();
+		if (!data.Flags.ReadOnly)
+		{
+			clearUpToDateFlags(data.SubResourceIndex);
+			lockData.isSysMemUpToDate = true;
+		}
 
 		unsigned char* ptr = static_cast<unsigned char*>(lockData.data);
 		if (data.Flags.AreaValid)
@@ -244,18 +252,15 @@ namespace D3dDdi
 
 		data.pSurfData = ptr;
 		data.Pitch = lockData.pitch;
-		++lockData.lockCount;
 		return LOG_RESULT(S_OK);
 	}
 
-	HRESULT Resource::bltUnlock(const D3DDDIARG_UNLOCK& data)
+	void Resource::clearUpToDateFlags(UINT subResourceIndex)
 	{
-		LOG_FUNC("Resource::bltUnlock", data);
-		if (0 != m_lockData[data.SubResourceIndex].lockCount)
-		{
-			--m_lockData[data.SubResourceIndex].lockCount;
-		}
-		return LOG_RESULT(S_OK);
+		m_lockData[subResourceIndex].isMsaaUpToDate = false;
+		m_lockData[subResourceIndex].isMsaaResolvedUpToDate = false;
+		m_lockData[subResourceIndex].isVidMemUpToDate = false;
+		m_lockData[subResourceIndex].isSysMemUpToDate = false;
 	}
 
 	void Resource::clipRect(UINT subResourceIndex, RECT& rect)
@@ -278,6 +283,24 @@ namespace D3dDdi
 		if (m_lockResource)
 		{
 			auto& lockData = m_lockData[data.SubResourceIndex];
+
+			if (lockData.isVidMemUpToDate)
+			{
+				m_device.getOrigVtable().pfnColorFill(m_device, &data);
+			}
+
+			if (lockData.isMsaaUpToDate)
+			{
+				data.hResource = *m_msaaSurface.resource;
+				m_device.getOrigVtable().pfnColorFill(m_device, &data);
+			}
+
+			if (lockData.isMsaaResolvedUpToDate)
+			{
+				data.hResource = *m_msaaResolvedSurface.resource;
+				m_device.getOrigVtable().pfnColorFill(m_device, &data);
+			}
+
 			if (lockData.isSysMemUpToDate)
 			{
 				auto dstBuf = static_cast<BYTE*>(lockData.data) +
@@ -286,13 +309,11 @@ namespace D3dDdi
 				DDraw::Blitter::colorFill(dstBuf, lockData.pitch,
 					data.DstRect.right - data.DstRect.left, data.DstRect.bottom - data.DstRect.top,
 					m_formatInfo.bytesPerPixel, colorConvert(m_formatInfo, data.Color));
-
-				m_lockData[data.SubResourceIndex].isVidMemUpToDate = false;
-				m_lockData[data.SubResourceIndex].isCustomUpToDate = false;
-				return LOG_RESULT(S_OK);
 			}
+
+			return LOG_RESULT(S_OK);
 		}
-		prepareForBlt(data.SubResourceIndex, false);
+
 		return LOG_RESULT(m_device.getOrigVtable().pfnColorFill(m_device, &data));
 	}
 
@@ -319,32 +340,6 @@ namespace D3dDdi
 		return LOG_RESULT(result);
 	}
 
-	void Resource::copyToSysMem(UINT subResourceIndex)
-	{
-		if (!m_lockData[subResourceIndex].isVidMemUpToDate)
-		{
-			copySubResource(m_handle, m_customSurface.resource->m_handle, subResourceIndex);
-			m_lockData[subResourceIndex].isVidMemUpToDate = true;
-		}
-		copySubResource(m_lockResource.get(), m_handle, subResourceIndex);
-		notifyLock(subResourceIndex);
-		m_lockData[subResourceIndex].isSysMemUpToDate = true;
-	}
-
-	void Resource::copyToVidMem(UINT subResourceIndex)
-	{
-		if (m_lockData[subResourceIndex].isCustomUpToDate)
-		{
-			copySubResource(m_handle, m_customSurface.resource->m_handle, subResourceIndex);
-		}
-		else
-		{
-			copySubResource(m_handle, m_lockResource.get(), subResourceIndex);
-			notifyLock(subResourceIndex);
-		}
-		m_lockData[subResourceIndex].isVidMemUpToDate = true;
-	}
-
 	void Resource::createGdiLockResource()
 	{
 		auto gdiSurfaceDesc(Gdi::VirtualScreen::getSurfaceDesc(DDraw::PrimarySurface::getMonitorRect()));
@@ -363,8 +358,8 @@ namespace D3dDdi
 		createSysMemResource({ surfaceInfo });
 		if (m_lockResource)
 		{
-			m_lockData[0].isVidMemUpToDate = false;
-			m_lockData[0].isCustomUpToDate = false;
+			clearUpToDateFlags(0);
+			m_lockData[0].isSysMemUpToDate = true;
 		}
 		else
 		{
@@ -444,7 +439,8 @@ namespace D3dDdi
 				m_lockData[i].qpcLastForcedLock = qpcLastForcedLock;
 				m_lockData[i].isSysMemUpToDate = true;
 				m_lockData[i].isVidMemUpToDate = true;
-				m_lockData[i].isCustomUpToDate = m_customSurface.resource;
+				m_lockData[i].isMsaaUpToDate = m_msaaSurface.resource;
+				m_lockData[i].isMsaaResolvedUpToDate = m_msaaResolvedSurface.resource;
 			}
 		}
 
@@ -472,9 +468,12 @@ namespace D3dDdi
 		if (D3DDDIFMT_UNKNOWN != g_formatOverride)
 		{
 			m_fixedData.Format = g_formatOverride;
-			auto msaa = getMultisampleConfig();
-			m_fixedData.MultisampleType = msaa.first;
-			m_fixedData.MultisampleQuality = msaa.second;
+		}
+
+		if (D3DDDIMULTISAMPLE_NONE != g_msaaOverride.first)
+		{
+			m_fixedData.MultisampleType = g_msaaOverride.first;
+			m_fixedData.MultisampleQuality = g_msaaOverride.second;
 		}
 
 		const bool isOffScreenPlain = 0 == (m_fixedData.Flags.Value & g_resourceTypeFlags);
@@ -499,6 +498,20 @@ namespace D3dDdi
 		return m_lockData.empty() ? nullptr : m_lockData[subResourceIndex].data;
 	}
 
+	D3DDDIFORMAT Resource::getFormatConfig()
+	{
+		if (m_fixedData.Flags.RenderTarget && !m_fixedData.Flags.Primary && D3DDDIPOOL_SYSTEMMEM != m_fixedData.Pool &&
+			(D3DDDIFMT_X8R8G8B8 == m_fixedData.Format || D3DDDIFMT_R5G6B5 == m_fixedData.Format))
+		{
+			switch (Config::renderColorDepth.get())
+			{
+			case 16: return D3DDDIFMT_R5G6B5;
+			case 32: return D3DDDIFMT_X8R8G8B8;
+			}
+		}
+		return m_fixedData.Format;
+	}
+
 	std::pair<D3DDDIMULTISAMPLE_TYPE, UINT> Resource::getMultisampleConfig()
 	{
 		if ((m_fixedData.Flags.RenderTarget && !m_fixedData.Flags.Texture && !m_fixedData.Flags.Primary ||
@@ -522,6 +535,77 @@ namespace D3dDdi
 			rect.bottom <= static_cast<LONG>(m_fixedData.pSurfList[subResourceIndex].Height);
 	}
 
+	void Resource::loadMsaaResource(UINT subResourceIndex)
+	{
+		if (!m_lockData[subResourceIndex].isMsaaUpToDate)
+		{
+			if (m_msaaResolvedSurface.resource)
+			{
+				loadMsaaResolvedResource(subResourceIndex);
+				copySubResource(*m_msaaSurface.resource, *m_msaaResolvedSurface.resource, subResourceIndex);
+			}
+			else
+			{
+				loadVidMemResource(subResourceIndex);
+				copySubResource(*m_msaaSurface.resource, m_handle, subResourceIndex);
+			}
+			m_lockData[subResourceIndex].isMsaaUpToDate = true;
+		}
+	}
+
+	void Resource::loadMsaaResolvedResource(UINT subResourceIndex)
+	{
+		if (!m_lockData[subResourceIndex].isMsaaResolvedUpToDate)
+		{
+			if (m_lockData[subResourceIndex].isMsaaUpToDate)
+			{
+				copySubResource(*m_msaaResolvedSurface.resource, *m_msaaSurface.resource, subResourceIndex);
+			}
+			else
+			{
+				loadVidMemResource(subResourceIndex);
+				copySubResource(*m_msaaResolvedSurface.resource, m_handle, subResourceIndex);
+			}
+			m_lockData[subResourceIndex].isMsaaResolvedUpToDate = true;
+		}
+	}
+
+	void Resource::loadSysMemResource(UINT subResourceIndex)
+	{
+		if (!m_lockData[subResourceIndex].isSysMemUpToDate)
+		{
+			loadVidMemResource(subResourceIndex);
+			copySubResource(m_lockResource.get(), m_handle, subResourceIndex);
+			notifyLock(subResourceIndex);
+			m_lockData[subResourceIndex].isSysMemUpToDate = true;
+		}
+	}
+
+	void Resource::loadVidMemResource(UINT subResourceIndex)
+	{
+		if (!m_lockData[subResourceIndex].isVidMemUpToDate)
+		{
+			if (m_lockData[subResourceIndex].isMsaaUpToDate || m_lockData[subResourceIndex].isMsaaResolvedUpToDate)
+			{
+				if (m_msaaResolvedSurface.resource)
+				{
+					loadMsaaResolvedResource(subResourceIndex);
+					copySubResource(m_handle, *m_msaaResolvedSurface.resource, subResourceIndex);
+				}
+				else
+				{
+					copySubResource(m_handle, *m_msaaSurface.resource, subResourceIndex);
+				}
+			}
+			else
+			{
+				copySubResource(m_handle, m_lockResource.get(), subResourceIndex);
+				notifyLock(subResourceIndex);
+			}
+			m_lockData[subResourceIndex].isVidMemUpToDate = true;
+		}
+	}
+
 	HRESULT Resource::lock(D3DDDIARG_LOCK& data)
 	{
 		if (isOversized())
@@ -558,69 +642,110 @@ namespace D3dDdi
 		m_device.getOrigVtable().pfnUnlock(m_device, &unlock);
 	}
 
-	void Resource::prepareForBlt(UINT subResourceIndex, bool isReadOnly)
+	void Resource::prepareForBltSrc(const D3DDDIARG_BLT& data)
 	{
-		if (m_lockResource && 0 == m_lockData[subResourceIndex].lockCount)
+		if (m_lockResource)
 		{
-			if (!m_lockData[subResourceIndex].isVidMemUpToDate)
-			{
-				copyToVidMem(subResourceIndex);
-			}
-			m_lockData[subResourceIndex].isCustomUpToDate &= isReadOnly;
-			m_lockData[subResourceIndex].isSysMemUpToDate &= isReadOnly;
+			loadVidMemResource(data.SrcSubResourceIndex);
 		}
 	}
 
-	void Resource::prepareForGdiRendering(bool isReadOnly)
+	void Resource::prepareForBltDst(D3DDDIARG_BLT& data)
 	{
-		if (!m_lockResource)
+		if (m_lockResource)
 		{
-			return;
+			if (m_lockData[data.DstSubResourceIndex].isMsaaUpToDate)
+			{
+				data.hDstResource = *m_msaaSurface.resource;
+				clearUpToDateFlags(data.DstSubResourceIndex);
+				m_lockData[data.DstSubResourceIndex].isMsaaUpToDate = true;
+			}
+			else if (m_lockData[data.DstSubResourceIndex].isMsaaResolvedUpToDate)
+			{
+				data.hDstResource = *m_msaaResolvedSurface.resource;
+				clearUpToDateFlags(data.DstSubResourceIndex);
+				m_lockData[data.DstSubResourceIndex].isMsaaResolvedUpToDate = true;
+			}
+			else
+			{
+				loadVidMemResource(data.DstSubResourceIndex);
+				clearUpToDateFlags(data.DstSubResourceIndex);
+				m_lockData[data.DstSubResourceIndex].isVidMemUpToDate = true;
+			}
 		}
-
-		if (!m_lockData[0].isSysMemUpToDate)
-		{
-			copyToSysMem(0);
-		}
-		m_lockData[0].isVidMemUpToDate &= isReadOnly;
-		m_lockData[0].isCustomUpToDate &= isReadOnly;
-		m_lockData[0].qpcLastForcedLock = Time::queryPerformanceCounter();
 	}
 
-	void Resource::prepareForRendering(UINT subResourceIndex)
+	void Resource::prepareForCpuRead(UINT subResourceIndex)
 	{
-		if (m_lockResource && 0 == m_lockData[subResourceIndex].lockCount)
+		if (m_lockResource)
 		{
-			if (m_customSurface.resource)
+			loadSysMemResource(subResourceIndex);
+		}
+	}
+
+	void Resource::prepareForCpuWrite(UINT subResourceIndex)
+	{
+		if (m_lockResource)
+		{
+			loadSysMemResource(subResourceIndex);
+			clearUpToDateFlags(subResourceIndex);
+			m_lockData[subResourceIndex].isSysMemUpToDate = true;
+		}
+	}
+
+	Resource& Resource::prepareForGpuRead(UINT subResourceIndex)
+	{
+		if (m_lockResource)
+		{
+			if (m_msaaResolvedSurface.resource)
 			{
-				if (!m_lockData[subResourceIndex].isCustomUpToDate)
-				{
-					if (!m_lockData[subResourceIndex].isVidMemUpToDate)
-					{
-						copyToVidMem(subResourceIndex);
-					}
-					copySubResource(m_customSurface.resource->m_handle, m_handle, subResourceIndex);
-					m_lockData[subResourceIndex].isCustomUpToDate = true;
-				}
-				m_lockData[subResourceIndex].isVidMemUpToDate = false;
+				loadMsaaResolvedResource(subResourceIndex);
+				return *m_msaaResolvedSurface.resource;
 			}
-			else if (!m_lockData[subResourceIndex].isVidMemUpToDate)
+			else
 			{
-				copyToVidMem(subResourceIndex);
+				loadVidMemResource(subResourceIndex);
+			}
+		}
+		return *this;
+	}
+
+	void Resource::prepareForGpuWrite(UINT subResourceIndex)
+	{
+		if (m_lockResource)
+		{
+			if (m_msaaSurface.resource)
+			{
+				loadMsaaResource(subResourceIndex);
+				clearUpToDateFlags(subResourceIndex);
+				m_lockData[subResourceIndex].isMsaaUpToDate = true;
+			}
+			else if (m_msaaResolvedSurface.resource)
+			{
+				loadMsaaResolvedResource(subResourceIndex);
+				clearUpToDateFlags(subResourceIndex);
+				m_lockData[subResourceIndex].isMsaaResolvedUpToDate = true;
+			}
+			else
+			{
+				loadVidMemResource(subResourceIndex);
+				clearUpToDateFlags(subResourceIndex);
+				m_lockData[subResourceIndex].isVidMemUpToDate = true;
 			}
-			m_lockData[subResourceIndex].isSysMemUpToDate = false;
 		}
 	}
 
 	HRESULT Resource::presentationBlt(D3DDDIARG_BLT data, Resource* srcResource)
 	{
-		if (srcResource->m_lockResource &&
-			srcResource->m_lockData[0].isSysMemUpToDate &&
-			!srcResource->m_fixedData.Flags.RenderTarget)
+		if (srcResource->m_lockResource)
 		{
-			srcResource->m_lockData[0].isVidMemUpToDate = false;
+			if (srcResource->m_lockData[0].isSysMemUpToDate &&
+				!srcResource->m_fixedData.Flags.RenderTarget)
+			{
+				srcResource->m_lockData[0].isVidMemUpToDate = false;
+			}
+			data.hSrcResource = srcResource->prepareForGpuRead(0);
 		}
-		srcResource->prepareForBlt(0, true);
 
 		const bool isPalettized = D3DDDIFMT_P8 == srcResource->m_origData.Format;
 
@@ -768,6 +893,7 @@ namespace D3dDdi
 				++tilePos.x;
 				tileRect.left += caps.dwMaxTextureWidth;
 				tileRect.right += caps.dwMaxTextureWidth;
+				notifyLock(subResourceIndex);
 			}
 
 			++tilePos.y;
@@ -803,7 +929,7 @@ namespace D3dDdi
 		m_fixedData.Flags.Texture = 0;
 	}
 
-	HRESULT Resource::sysMemPreferredBlt(const D3DDDIARG_BLT& data, Resource& srcResource)
+	HRESULT Resource::sysMemPreferredBlt(D3DDDIARG_BLT& data, Resource& srcResource)
 	{
 		if (m_fixedData.Format == srcResource.m_fixedData.Format &&
 			!m_lockData.empty() &&
@@ -831,17 +957,8 @@ namespace D3dDdi
 
 			if (isSysMemBltPreferred)
 			{
-				if (!dstLockData.isSysMemUpToDate)
-				{
-					copyToSysMem(data.DstSubResourceIndex);
-				}
-				dstLockData.isVidMemUpToDate = false;
-				dstLockData.isCustomUpToDate = false;
-
-				if (!srcLockData.isSysMemUpToDate)
-				{
-					srcResource.copyToSysMem(data.SrcSubResourceIndex);
-				}
+				prepareForCpuWrite(data.DstSubResourceIndex);
+				srcResource.prepareForCpuRead(data.SrcSubResourceIndex);
 
 				auto dstBuf = static_cast<BYTE*>(dstLockData.data) +
 					data.DstRect.top * dstLockData.pitch + data.DstRect.left * m_formatInfo.bytesPerPixel;
@@ -866,8 +983,9 @@ namespace D3dDdi
 			}
 		}
 
-		prepareForBlt(data.DstSubResourceIndex, false);
-		srcResource.prepareForBlt(data.SrcSubResourceIndex, true);
+		srcResource.prepareForBltSrc(data);
+		prepareForBltDst(data);
+
 		HRESULT result = m_device.getOrigVtable().pfnBlt(m_device, &data);
 		if (D3DDDIPOOL_SYSTEMMEM == m_fixedData.Pool)
 		{
@@ -908,10 +1026,6 @@ namespace D3dDdi
 			}
 			return splitLock(data, m_device.getOrigVtable().pfnUnlock);
 		}
-		else if (m_lockResource)
-		{
-			return bltUnlock(data);
-		}
 
 		return m_device.getOrigVtable().pfnUnlock(m_device, &data);
 	}
@@ -924,30 +1038,35 @@ namespace D3dDdi
 		}
 
 		const auto msaa = getMultisampleConfig();
-		if (m_multiSampleConfig == msaa)
+		const auto formatConfig = getFormatConfig();
+		if (m_multiSampleConfig == msaa && m_formatConfig == formatConfig)
 		{
 			return;
 		}
 		m_multiSampleConfig = msaa;
+		m_formatConfig = formatConfig;
 
-		if (m_customSurface.resource && m_fixedData.Flags.RenderTarget)
+		if (m_fixedData.Flags.RenderTarget &&
+			(m_msaaSurface.resource || m_msaaResolvedSurface.resource))
 		{
 			for (UINT i = 0; i < m_lockData.size(); ++i)
 			{
-				if (m_lockData[i].isCustomUpToDate && !m_lockData[i].isVidMemUpToDate)
+				if (m_lockData[i].isMsaaUpToDate || m_lockData[i].isMsaaResolvedUpToDate)
 				{
-					copyToVidMem(i);
+					loadVidMemResource(i);
 				}
-				m_lockData[i].isCustomUpToDate = false;
+				m_lockData[i].isMsaaUpToDate = false;
+				m_lockData[i].isMsaaResolvedUpToDate = false;
 			}
 		}
 
 		auto& surfaceRepo(SurfaceRepository::get(m_device.getAdapter()));
-		surfaceRepo.release(m_customSurface);
+		surfaceRepo.release(m_msaaSurface);
+		surfaceRepo.release(m_msaaResolvedSurface);
 
-		if (D3DDDIMULTISAMPLE_NONE != msaa.first)
+		if (D3DDDIMULTISAMPLE_NONE != msaa.first || m_fixedData.Format != formatConfig)
 		{
-			g_formatOverride = m_fixedData.Format;
+			g_formatOverride = formatConfig;
 			if (m_fixedData.Flags.ZBuffer)
 			{
 				DDPIXELFORMAT pf = {};
@@ -956,13 +1075,25 @@ namespace D3dDdi
 				pf.dwZBufferBitDepth = 16;
 				pf.dwZBitMask = 0xFFFF;
 
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_customSurface,
+				g_msaaOverride = msaa;
+				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaSurface,
 					m_fixedData.surfaceData[0].Width, m_fixedData.surfaceData[0].Height, pf,
 					DDSCAPS_ZBUFFER | DDSCAPS_VIDEOMEMORY, m_fixedData.SurfCount);
+				g_msaaOverride = {};
 			}
 			else
 			{
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_customSurface,
+				if (D3DDDIMULTISAMPLE_NONE != msaa.first)
+				{
+					g_msaaOverride = msaa;
+					SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaSurface,
+						m_fixedData.surfaceData[0].Width, m_fixedData.surfaceData[0].Height,
+						DDraw::DirectDraw::getRgbPixelFormat(32),
+						DDSCAPS_3DDEVICE | DDSCAPS_VIDEOMEMORY);
+					g_msaaOverride = {};
+				}
+
+				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaResolvedSurface,
 					m_fixedData.surfaceData[0].Width, m_fixedData.surfaceData[0].Height,
 					DDraw::DirectDraw::getRgbPixelFormat(32),
 					DDSCAPS_3DDEVICE | DDSCAPS_VIDEOMEMORY);
diff --git a/DDrawCompat/D3dDdi/Resource.h b/DDrawCompat/D3dDdi/Resource.h
index 16de953..942edf2 100644
--- a/DDrawCompat/D3dDdi/Resource.h
+++ b/DDrawCompat/D3dDdi/Resource.h
@@ -26,7 +26,7 @@ namespace D3dDdi
 		~Resource();
 
 		operator HANDLE() const { return m_handle; }
-		const Resource* getCustomResource() { return m_customSurface.resource; }
+		const Resource* getCustomResource() { return m_msaaSurface.resource ? m_msaaSurface.resource : m_msaaResolvedSurface.resource; }
 		const D3DDDIARG_CREATERESOURCE2& getFixedDesc() const { return m_fixedData; }
 		const D3DDDIARG_CREATERESOURCE2& getOrigDesc() const { return m_origData; }
 
@@ -34,9 +34,12 @@ namespace D3dDdi
 		HRESULT colorFill(D3DDDIARG_COLORFILL data);
 		void* getLockPtr(UINT subResourceIndex);
 		HRESULT lock(D3DDDIARG_LOCK& data);
-		void prepareForBlt(UINT subResourceIndex, bool isReadOnly);
-		void prepareForGdiRendering(bool isReadOnly);
-		void prepareForRendering(UINT subResourceIndex);
+		void prepareForBltSrc(const D3DDDIARG_BLT& data);
+		void prepareForBltDst(D3DDDIARG_BLT& data);
+		void prepareForCpuRead(UINT subResourceIndex);
+		void prepareForCpuWrite(UINT subResourceIndex);
+		Resource& prepareForGpuRead(UINT subResourceIndex);
+		void prepareForGpuWrite(UINT subResourceIndex);
 		void setAsGdiResource(bool isGdiResource);
 		HRESULT unlock(const D3DDDIARG_UNLOCK& data);
 		void updateConfig();
@@ -63,22 +66,26 @@ namespace D3dDdi
 			long long qpcLastForcedLock;
 			bool isSysMemUpToDate;
 			bool isVidMemUpToDate;
-			bool isCustomUpToDate;
+			bool isMsaaUpToDate;
+			bool isMsaaResolvedUpToDate;
 		};
 
 		HRESULT bltLock(D3DDDIARG_LOCK& data);
-		HRESULT bltUnlock(const D3DDDIARG_UNLOCK& data);
+		void clearUpToDateFlags(UINT subResourceIndex);
 		void clipRect(UINT subResourceIndex, RECT& rect);
 		HRESULT copySubResource(HANDLE dstResource, HANDLE srcResource, UINT subResourceIndex);
-		void copyToSysMem(UINT subResourceIndex);
-		void copyToVidMem(UINT subResourceIndex);
 		void createGdiLockResource();
 		void createLockResource();
 		void createSysMemResource(const std::vector<D3DDDI_SURFACEINFO>& surfaceInfo);
 		void fixResourceData();
+		D3DDDIFORMAT getFormatConfig();
 		std::pair<D3DDDIMULTISAMPLE_TYPE, UINT> getMultisampleConfig();
 		bool isOversized() const;
 		bool isValidRect(UINT subResourceIndex, const RECT& rect);
+		void loadMsaaResource(UINT subResourceIndex);
+		void loadMsaaResolvedResource(UINT subResourceIndex);
+		void loadSysMemResource(UINT subResourceIndex);
+		void loadVidMemResource(UINT subResourceIndex);
 		void notifyLock(UINT subResourceIndex);
 		HRESULT presentationBlt(D3DDDIARG_BLT data, Resource* srcResource);
 		HRESULT splitBlt(D3DDDIARG_BLT& data, UINT& subResourceIndex, RECT& rect, RECT& otherRect);
@@ -87,7 +94,7 @@ namespace D3dDdi
 		HRESULT splitLock(Arg& data, HRESULT(APIENTRY *lockFunc)(HANDLE, Arg*));
 
 		void splitToTiles(UINT tileWidth, UINT tileHeight);
-		HRESULT sysMemPreferredBlt(const D3DDDIARG_BLT& data, Resource& srcResource);
+		HRESULT sysMemPreferredBlt(D3DDDIARG_BLT& data, Resource& srcResource);
 
 		Device& m_device;
 		HANDLE m_handle;
@@ -97,7 +104,9 @@ namespace D3dDdi
 		std::unique_ptr<void, void(*)(void*)> m_lockBuffer;
 		std::vector<LockData> m_lockData;
 		std::unique_ptr<void, ResourceDeleter> m_lockResource;
-		SurfaceRepository::Surface m_customSurface;
+		SurfaceRepository::Surface m_msaaSurface;
+		SurfaceRepository::Surface m_msaaResolvedSurface;
+		D3DDDIFORMAT m_formatConfig;
 		std::pair<D3DDDIMULTISAMPLE_TYPE, UINT> m_multiSampleConfig;
 		bool m_isSurfaceRepoResource;
 	};
diff --git a/DDrawCompat/D3dDdi/SurfaceRepository.cpp b/DDrawCompat/D3dDdi/SurfaceRepository.cpp
index 04311c1..7d0cf2f 100644
--- a/DDrawCompat/D3dDdi/SurfaceRepository.cpp
+++ b/DDrawCompat/D3dDdi/SurfaceRepository.cpp
@@ -148,8 +148,8 @@ namespace D3dDdi
 			}
 			DeleteObject(iconInfo.hbmMask);
 
-			m_cursorMaskTexture.resource->prepareForBlt(0, true);
-			m_cursorColorTexture.resource->prepareForBlt(0, true);
+			m_cursorMaskTexture.resource->prepareForGpuRead(0);
+			m_cursorColorTexture.resource->prepareForGpuRead(0);
 
 			m_cursorSize.cx = rect.right - rect.left;
 			m_cursorSize.cy = rect.bottom - rect.top;
@@ -203,7 +203,7 @@ namespace D3dDdi
 
 		initFunc(desc);
 		surface.surface->Unlock(surface.surface, nullptr);
-		surface.resource->prepareForBlt(0, true);
+		surface.resource->prepareForGpuRead(0);
 		return surface.resource;
 	}
 
diff --git a/DDrawCompat/DDrawCompat.vcxproj b/DDrawCompat/DDrawCompat.vcxproj
index 1b7d140..3cccc30 100644
--- a/DDrawCompat/DDrawCompat.vcxproj
+++ b/DDrawCompat/DDrawCompat.vcxproj
@@ -220,6 +220,7 @@
     <ClInclude Include="Config\Settings\DesktopColorDepth.h" />
     <ClInclude Include="Config\Settings\DisplayFilter.h" />
     <ClInclude Include="Config\Settings\DisplayResolution.h" />
+    <ClInclude Include="Config\Settings\RenderColorDepth.h" />
     <ClInclude Include="Config\Settings\SupportedResolutions.h" />
     <ClInclude Include="Config\Settings\TextureFilter.h" />
     <ClInclude Include="Config\Settings\ThreadPriorityBoost.h" />
@@ -440,4 +441,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/DDrawCompat/DDrawCompat.vcxproj.filters b/DDrawCompat/DDrawCompat.vcxproj.filters
index e1230e9..d12d692 100644
--- a/DDrawCompat/DDrawCompat.vcxproj.filters
+++ b/DDrawCompat/DDrawCompat.vcxproj.filters
@@ -501,6 +501,9 @@
     <ClInclude Include="D3dDdi\ResourceDeleter.h">
       <Filter>Header Files\D3dDdi</Filter>
     </ClInclude>
+    <ClInclude Include="Config\Settings\RenderColorDepth.h">
+      <Filter>Header Files\Config\Settings</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Gdi\Gdi.cpp">
diff --git a/DDrawCompat/Gdi/CompatDc.cpp b/DDrawCompat/Gdi/CompatDc.cpp
index be8e34e..25567aa 100644
--- a/DDrawCompat/Gdi/CompatDc.cpp
+++ b/DDrawCompat/Gdi/CompatDc.cpp
@@ -19,7 +19,14 @@ namespace Gdi
 			auto gdiResource = D3dDdi::Device::getGdiResource();
 			if (gdiResource)
 			{
-				gdiResource->prepareForGdiRendering(isReadOnly);
+				if (isReadOnly)
+				{
+					gdiResource->prepareForCpuRead(0);
+				}
+				else
+				{
+					gdiResource->prepareForCpuWrite(0);
+				}
 			}
 		}
 		else
diff --git a/DDrawCompat/Overlay/ConfigWindow.cpp b/DDrawCompat/Overlay/ConfigWindow.cpp
index fb5fce0..9ce3346 100644
--- a/DDrawCompat/Overlay/ConfigWindow.cpp
+++ b/DDrawCompat/Overlay/ConfigWindow.cpp
@@ -11,6 +11,7 @@ namespace Overlay
 		addControl(Config::alternatePixelCenter);
 		addControl(Config::antialiasing);
 		addControl(Config::displayFilter);
+		addControl(Config::renderColorDepth);
 		addControl(Config::textureFilter);
 	}
 
diff --git a/DDrawCompat/Overlay/SettingControl.cpp b/DDrawCompat/Overlay/SettingControl.cpp
index 86f4cad..e956974 100644
--- a/DDrawCompat/Overlay/SettingControl.cpp
+++ b/DDrawCompat/Overlay/SettingControl.cpp
@@ -39,6 +39,7 @@ namespace Overlay
 		}
 
 		if (&Config::antialiasing  == &m_setting ||
+			&Config::renderColorDepth == &m_setting ||
 			&Config::textureFilter == &m_setting)
 		{
 			D3dDdi::Device::updateAllConfig();