//---------------------------------------------------------------------------
void FontRenderer::FontDrawingBegin(  RenderContext* rc )
{
    assert( m_vertexBuffer != NULL );
    assert( m_indexBuffer != NULL );

    m_currentRC = rc;

    m_fontDrawOps.clear();

    ID3D11DeviceContext* dc = m_currentRC->Context();

    UINT viewportCount = 1;
    D3D11_VIEWPORT vp;
    dc->RSGetViewports(&viewportCount, &vp);

    UINT stride = sizeof(FontTextVertex);
    UINT offset = 0;
    dc->IASetInputLayout(m_vertexLayout);
    dc->IASetIndexBuffer(m_indexBuffer, DXGI_FORMAT_R32_UINT, 0);
    dc->IASetVertexBuffers(0, 1, &m_vertexBuffer, &stride, &offset);
    dc->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

    dc->VSSetShader( m_vertexShader, 0, 0 );
    dc->PSSetShader( m_pixelShader, 0, 0 );
    dc->PSSetSamplers( 0, 1, &m_samplerState );

    dc->RSSetState(m_rasterState);

    float blendFactor[4] = {1.0f};
    dc->OMSetBlendState(m_blendState, blendFactor, 0xffffffff);

    m_activeFont = NULL;    // needs to be set!
}
void ComplexTree::draw(ID3D11Device* device, const GameTime& gameTime)
{
	ID3D11DeviceContext* deviceContext;
	device->GetImmediateContext(&deviceContext);

	ID3D11Buffer* buffers[2] = { trunkMesh.GetVB11(0, 0), instanceBuffer };
	unsigned strides[2] = { trunkMesh.GetVertexStride(0,0), sizeof(Vector3) };
	unsigned offsets[2] = {0};
	deviceContext->IASetInputLayout(inputLayout);
	deviceContext->IASetVertexBuffers(0, 2, buffers, strides, offsets);
	deviceContext->IASetIndexBuffer(trunkMesh.GetIB11(0), trunkMesh.GetIBFormat11(0), 0);

	Camera& camera = vegetationRendering.getCamera();
	const Light& light = vegetationRendering.getLight();

	D3D11_VIEWPORT viewport;
	unsigned numViewports = 1;
	deviceContext->RSGetViewports(&numViewports, &viewport);

	evGSCulling->SetBool(vegetationRendering.isGSCullingEnabled());
	evShowSavedCulling->SetBool(vegetationRendering.showSaved());
	evSavedViewProjection->SetMatrix(vegetationRendering.getSavedViewMatrix() * vegetationRendering.getSavedProjectionMatrix());
	evCameraPosition->SetFloatVector(camera.getPosition());
	evLightVector->SetFloatVector(Vector3(light.Direction.x, light.Direction.y, light.Direction.z));
	evAmbientLight->SetFloatVector(Vector3(light.Ambient.r, light.Ambient.g, light.Ambient.b));
	evDiffuseLight->SetFloatVector(Vector3(light.Diffuse.r, light.Diffuse.g, light.Diffuse.b));
	evSpecularLight->SetFloatVector(Vector3(light.Specular.r, light.Specular.g, light.Specular.b));
	evShininess->SetFloat(TREE_SHININESS);

	evWorld->SetMatrix(world);
	evViewProjection->SetMatrix(camera.getView() * camera.getProjection(TREE_NEAR_PLANE, TREE_FAR_PLANE));

	for(unsigned i = 0; i < trunkMesh.GetNumSubsets(0); ++i)
	{
		SDKMESH_SUBSET* subset = trunkMesh.GetSubset(0, i);
		//D3D11_PRIMITIVE_TOPOLOGY primitiveType = trunkMesh.GetPrimitiveType11((SDKMESH_PRIMITIVE_TYPE)subset->PrimitiveType);
		deviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_3_CONTROL_POINT_PATCHLIST);
		SDKMESH_MATERIAL* material = trunkMesh.GetMaterial(subset->MaterialID);
		if(material)
			evTrunkTexture->SetResource(material->pDiffuseRV11);
		pass->Apply(0, deviceContext);
		deviceContext->DrawIndexedInstanced((unsigned)subset->IndexCount, drawInstanceCount,
			(unsigned)subset->IndexStart, (int)subset->VertexStart,0);
		//deviceContext->DrawIndexed((unsigned)subset->IndexCount, (unsigned)subset->IndexStart, (int)subset->VertexStart);
	}

	/*deviceContext->IASetInputLayout(inputLayoutLOD1);
	unsigned stride = sizeof(float) * 3;
	unsigned offset = 0;
	deviceContext->IASetVertexBuffers(0, 1, &instanceBuffer, &stride, &offset);
	deviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_POINTLIST);

	evWorld->SetMatrix(Matrix::createScale(Vector3(9)));

	passLOD1->Apply(0, deviceContext);
	deviceContext->Draw(INSTANCE_COUNT, 0);*/

	deviceContext->Release();
}
/**
* Handle Stereo Drawing.
***/
void* StereoPresenter::Provoke(void* pThis, int eD3D, int eD3DInterface, int eD3DMethod, DWORD dwNumberConnected, int& nProvokerIndex)
{
#ifdef _DEBUG_STP
	{ wchar_t buf[128]; wsprintf(buf, L"[STP] ifc %u mtd %u", eD3DInterface, eD3DMethod); OutputDebugString(buf); }
#endif

	// update our global time
	static float fGlobalTime = 0.0f;
	static DWORD dwTimeStart = 0;
	DWORD dwTimeCur = GetTickCount();
	if (dwTimeStart == 0)
		dwTimeStart = dwTimeCur;
	fGlobalTime = (dwTimeCur - dwTimeStart) / 1000.0f;

	// only present accepted
	bool bValid = false;
	if (((eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT)) ||
		((eD3DInterface == INTERFACE_IDIRECT3DDEVICE9) && (eD3DMethod == METHOD_IDIRECT3DDEVICE9_PRESENT))) bValid = true;
	if (!bValid) return nullptr;

	// clear all previous menu events
	ZeroMemory(&m_abMenuEvents[0], sizeof(VireioMenuEvent)* (int)VireioMenuEvent::NumberOfEvents);

	// main menu update ?
	if ((m_sMainMenu.bOnChanged) && (!m_sMenuControl.eSelectionMovement))
	{
		m_sMainMenu.bOnChanged = false;

		// loop through entries
		for (size_t nIx = 0; nIx < m_sMainMenu.asEntries.size(); nIx++)
		{
			// entry index changed ?
			if (m_sMainMenu.asEntries[nIx].bOnChanged)
			{
				m_sMainMenu.asEntries[nIx].bOnChanged = false;

				// set new menu index.. selection to zero
				m_sMenuControl.nMenuIx = (INT)nIx;
				m_sMenuControl.unSelectionFormer = m_sMenuControl.unSelection = 0;
			}
		}
	}

	// sub menu update ?
	if ((m_sSubMenu.bOnChanged) && (!m_sMenuControl.eSelectionMovement))
	{
		m_sSubMenu.bOnChanged = false;

		// exit ?
		if (m_sSubMenu.bOnExit)
			m_sMenuControl.nMenuIx = -1;

		// loop through entries
		for (size_t nIx = 0; nIx < m_sSubMenu.asEntries.size(); nIx++)
		{
			// entry index changed ?
			if (m_sSubMenu.asEntries[nIx].bOnChanged)
			{
				m_sSubMenu.asEntries[nIx].bOnChanged = false;

				// font ?
				if (nIx == ENTRY_FONT)
				{
					// get device and context
					ID3D11Device* pcDevice = nullptr;
					ID3D11DeviceContext* pcContext = nullptr;
					HRESULT nHr = S_OK;
					if ((eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT))
						nHr = GetDeviceAndContext((IDXGISwapChain*)pThis, &pcDevice, &pcContext);
					else
					{
						if (m_ppcTexView11[0])
						{
							if (*(m_ppcTexView11[0]))
								(*(m_ppcTexView11[0]))->GetDevice(&pcDevice);
							if (pcDevice)
								pcDevice->GetImmediateContext(&pcContext);
							else nHr = E_FAIL;
							if (!pcContext) nHr = E_FAIL;
						}
						else
							nHr = E_FAIL;
					}
					if (SUCCEEDED(nHr))
					{
						HRESULT nHr;
						// get base directory
						std::string strVireioPath = GetBaseDir();

						// add file path
						strVireioPath += "font//";
						strVireioPath += m_sSubMenu.asEntries[nIx].astrValueEnumeration[m_sSubMenu.asEntries[nIx].unValue];
						strVireioPath += ".spritefont";
						OutputDebugStringA(strVireioPath.c_str());

						// create font, make backup
						VireioFont* pcOldFont = m_pcFontSegeo128;
						m_pcFontSegeo128 = new VireioFont(pcDevice, pcContext, strVireioPath.c_str(), 128.0f, 1.0f, nHr, 1);
						if (FAILED(nHr))
						{
							delete m_pcFontSegeo128; m_pcFontSegeo128 = pcOldFont;
						}
						else
						{
							// set new font name
							m_strFontName = m_sSubMenu.asEntries[nIx].astrValueEnumeration[m_sSubMenu.asEntries[nIx].unValue];

							// write to ini file
							char szFilePathINI[1024];
							GetCurrentDirectoryA(1024, szFilePathINI);
							strcat_s(szFilePathINI, "\\VireioPerception.ini");
							WritePrivateProfileStringA("Stereo Presenter", "strFontName", m_strFontName.c_str(), szFilePathINI);
						}
					}
					SAFE_RELEASE(pcDevice);
					SAFE_RELEASE(pcContext);
				}

			}
		}
	}

	// get xbox controller input
	XINPUT_STATE sControllerState;
	bool bControllerAttached = false;
	ZeroMemory(&sControllerState, sizeof(XINPUT_STATE));
	if (XInputGetState(0, &sControllerState) == ERROR_SUCCESS)
	{
		bControllerAttached = true;
	}

	if (true)
	{
#pragma region menu hotkeys
		static bool bReleased = true;
		static bool s_bOnMenu = false;

		// keyboard menu on/off event + get hand poses
		UINT uIxHandPoses = 0, uIxPoseRequest = 0;
		s_bOnMenu = GetAsyncKeyState(VK_LCONTROL) && GetAsyncKeyState(0x51);
		for (UINT unIx = 0; unIx < 32; unIx++)
		{
			// set menu bool event
			if (m_apsSubMenues[unIx])
			{
				if (m_apsSubMenues[unIx]->bOnBack)
				{
					// main menu ? exit
					if ((m_sMenuControl.nMenuIx == -1) && (!m_sMenuControl.eSelectionMovement))
						s_bOnMenu = true;
					else
						m_abMenuEvents[VireioMenuEvent::OnExit] = TRUE;

					m_apsSubMenues[unIx]->bOnBack = false;
				}

				// hand poses ?
				if (m_apsSubMenues[unIx]->bHandPosesPresent)
					uIxHandPoses = unIx;
				if (m_apsSubMenues[unIx]->bHandPosesRequest)
					uIxPoseRequest = unIx;
			}
		}
		if ((m_apsSubMenues[uIxHandPoses]) && (m_apsSubMenues[uIxPoseRequest]))
		{
			// copy the hand pose data to the request node
			m_apsSubMenues[uIxPoseRequest]->sPoseMatrix[0] = m_apsSubMenues[uIxHandPoses]->sPoseMatrix[0];
			m_apsSubMenues[uIxPoseRequest]->sPoseMatrix[1] = m_apsSubMenues[uIxHandPoses]->sPoseMatrix[1];
			m_apsSubMenues[uIxPoseRequest]->sPosition[0] = m_apsSubMenues[uIxHandPoses]->sPosition[0];
			m_apsSubMenues[uIxPoseRequest]->sPosition[1] = m_apsSubMenues[uIxHandPoses]->sPosition[1];
		}

		// static hotkeys :  LCTRL+Q - toggle vireio menu
		//                   F12 - toggle stereo output
		if (GetAsyncKeyState(VK_F12))
		{
			m_bHotkeySwitch = true;
		}
		else
		if (s_bOnMenu)
		{
			m_bMenuHotkeySwitch = true;
		}
		else
		if (m_bMenuHotkeySwitch)
		{
			m_bMenuHotkeySwitch = false;
			m_bMenu = !m_bMenu;
			for (UINT unIx = 0; unIx < 32; unIx++)
			{
				// set sub menu active if menu is active
				if (m_apsSubMenues[unIx])
					m_apsSubMenues[unIx]->bIsActive = m_bMenu;
			}
		}
		else
		if (m_bHotkeySwitch)
		{
			if (m_eStereoMode) m_eStereoMode = VireioMonitorStereoModes::Vireio_Mono; else m_eStereoMode = VireioMonitorStereoModes::Vireio_SideBySide;
			m_bHotkeySwitch = false;
		}
		else
			bReleased = true;
#pragma endregion
#pragma region menu events
		// menu is shown ?
		if (m_bMenu)
		{
			// handle controller
			if (bControllerAttached)
			{
				if (sControllerState.Gamepad.wButtons & XINPUT_GAMEPAD_BACK)
				{
					m_abMenuEvents[VireioMenuEvent::OnExit] = TRUE;
				}
				if (sControllerState.Gamepad.wButtons & XINPUT_GAMEPAD_A)
				{
					m_abMenuEvents[VireioMenuEvent::OnAccept] = TRUE;
				}
				if (sControllerState.Gamepad.sThumbLY > 28000)
					m_abMenuEvents[VireioMenuEvent::OnUp] = TRUE;
				if (sControllerState.Gamepad.sThumbLY < -28000)
					m_abMenuEvents[VireioMenuEvent::OnDown] = TRUE;
				if (sControllerState.Gamepad.sThumbLX > 28000)
					m_abMenuEvents[VireioMenuEvent::OnRight] = TRUE;
				if (sControllerState.Gamepad.sThumbLX < -28000)
					m_abMenuEvents[VireioMenuEvent::OnLeft] = TRUE;
			}

			// loop through sub menues
			for (UINT unIx = 0; unIx < 32; unIx++)
			{
				// set bool events
				if (m_apsSubMenues[unIx])
				{
					if (m_apsSubMenues[unIx]->bOnUp) m_abMenuEvents[VireioMenuEvent::OnUp] = TRUE;
					if (m_apsSubMenues[unIx]->bOnDown) m_abMenuEvents[VireioMenuEvent::OnDown] = TRUE;
					if (m_apsSubMenues[unIx]->bOnLeft) m_abMenuEvents[VireioMenuEvent::OnLeft] = TRUE;
					if (m_apsSubMenues[unIx]->bOnRight) m_abMenuEvents[VireioMenuEvent::OnRight] = TRUE;
					if (m_apsSubMenues[unIx]->bOnAccept) m_abMenuEvents[VireioMenuEvent::OnAccept] = TRUE;

					// clear events
					m_apsSubMenues[unIx]->bOnUp = false;
					m_apsSubMenues[unIx]->bOnDown = false;
					m_apsSubMenues[unIx]->bOnLeft = false;
					m_apsSubMenues[unIx]->bOnRight = false;
					m_apsSubMenues[unIx]->bOnAccept = false;
					m_apsSubMenues[unIx]->bOnBack = false;
				}
			}
#pragma endregion
#pragma region menu update/render

			// update
			UpdateMenu(fGlobalTime);

			// get device and context
			ID3D11Device* pcDevice = nullptr;
			ID3D11DeviceContext* pcContext = nullptr;
			HRESULT nHr = S_OK;
			if ((eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT))
				nHr = GetDeviceAndContext((IDXGISwapChain*)pThis, &pcDevice, &pcContext);
			else
			{
				if (m_ppcTexView11[0])
				{
					if (*(m_ppcTexView11[0]))
						(*(m_ppcTexView11[0]))->GetDevice(&pcDevice);
					if (pcDevice)
						pcDevice->GetImmediateContext(&pcContext);
					else nHr = E_FAIL;
					if (!pcContext) nHr = E_FAIL;
				}
				else
					nHr = E_FAIL;
			}
			if (FAILED(nHr))
			{
				// release frame texture+view
				if (pcDevice) { pcDevice->Release(); pcDevice = nullptr; }
				if (pcContext) { pcContext->Release(); pcContext = nullptr; }
				return nullptr;
			}
			// create the depth stencil... if D3D11
			if ((eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT) && (!m_pcDSGeometry11))
			{
				ID3D11Texture2D* pcBackBuffer = nullptr;
				((IDXGISwapChain*)pThis)->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pcBackBuffer);

				if (pcBackBuffer)
				{
					D3D11_TEXTURE2D_DESC sDesc;
					pcBackBuffer->GetDesc(&sDesc);
					pcBackBuffer->Release();

					// Create depth stencil texture
					D3D11_TEXTURE2D_DESC descDepth;
					ZeroMemory(&descDepth, sizeof(descDepth));
					descDepth.Width = sDesc.Width;
					descDepth.Height = sDesc.Height;
					descDepth.MipLevels = 1;
					descDepth.ArraySize = 1;
					descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
					descDepth.SampleDesc.Count = 1;
					descDepth.SampleDesc.Quality = 0;
					descDepth.Usage = D3D11_USAGE_DEFAULT;
					descDepth.BindFlags = D3D11_BIND_DEPTH_STENCIL;
					descDepth.CPUAccessFlags = 0;
					descDepth.MiscFlags = 0;
					if (FAILED(pcDevice->CreateTexture2D(&descDepth, NULL, &m_pcDSGeometry11)))
						OutputDebugString(L"[STP] Failed to create depth stencil.");

					// Create the depth stencil view
					D3D11_DEPTH_STENCIL_VIEW_DESC descDSV;
					ZeroMemory(&descDSV, sizeof(descDSV));
					descDSV.Format = descDepth.Format;
					descDSV.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
					descDSV.Texture2D.MipSlice = 0;
					if (FAILED(pcDevice->CreateDepthStencilView(m_pcDSGeometry11, &descDSV, &m_pcDSVGeometry11)))
						OutputDebugString(L"[STP] Failed to create depth stencil view.");
				}
			}

			// get the viewport
			UINT dwNumViewports = 1;
			D3D11_VIEWPORT psViewport[16];
			pcContext->RSGetViewports(&dwNumViewports, psViewport);

			// backup all states
			D3DX11_STATE_BLOCK sStateBlock;
			CreateStateblock(pcContext, &sStateBlock);

			// clear all states, set targets
			ClearContextState(pcContext);

			// set the menu texture (if present)
			if (m_ppcTexViewMenu)
			{
				if (*m_ppcTexViewMenu)
				{
					// set render target
					ID3D11RenderTargetView* pcRTView = *m_ppcTexViewMenu;
					pcContext->OMSetRenderTargets(1, &pcRTView, NULL);

					// set viewport
					D3D11_VIEWPORT sViewport = {};
					sViewport.TopLeftX = 0;
					sViewport.TopLeftY = 0;
					sViewport.Width = 1024;
					sViewport.Height = 1024;
					sViewport.MinDepth = 0.0f;
					sViewport.MaxDepth = 1.0f;
					pcContext->RSSetViewports(1, &sViewport);

					// clear render target...zero alpha
					FLOAT afColorRgba[4] = { 0.5f, 0.4f, 0.2f, 0.4f };
					pcContext->ClearRenderTargetView(*m_ppcTexViewMenu, afColorRgba);
				}
			}
			else
			if ((eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT))
			{
				// set first active render target - the stored back buffer - get the stored private data view
				ID3D11Texture2D* pcBackBuffer = nullptr;
				((IDXGISwapChain*)pThis)->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pcBackBuffer);
				ID3D11RenderTargetView* pcView = nullptr;
				UINT dwSize = sizeof(pcView);
				pcBackBuffer->GetPrivateData(PDIID_ID3D11TextureXD_RenderTargetView, &dwSize, (void*)&pcView);
				if (dwSize)
				{
					pcContext->OMSetRenderTargets(1, (ID3D11RenderTargetView**)&pcView, m_pcDSVGeometry11);
					pcView->Release();
				}
				else
				{
					// create render target view for the back buffer
					ID3D11RenderTargetView* pcRTV = nullptr;
					pcDevice->CreateRenderTargetView(pcBackBuffer, NULL, &pcRTV);
					if (pcRTV)
					{
						pcBackBuffer->SetPrivateDataInterface(PDIID_ID3D11TextureXD_RenderTargetView, pcRTV);
						pcRTV->Release();
					}
				}
				pcContext->RSSetViewports(dwNumViewports, psViewport);
				pcBackBuffer->Release();

				// clear the depth stencil
				pcContext->ClearDepthStencilView(m_pcDSVGeometry11, D3D11_CLEAR_DEPTH, 1.0f, 0);
			}

			// create the font class if not present 
			nHr = S_OK;
			if (!m_pcFontSegeo128)
			{
				// get base directory
				std::string strVireioPath = GetBaseDir();

				// add file path
				strVireioPath += "font//";
				strVireioPath += m_strFontName;
				strVireioPath += ".spritefont";
				OutputDebugStringA(strVireioPath.c_str());

				// create font
				m_pcFontSegeo128 = new VireioFont(pcDevice, pcContext, strVireioPath.c_str(), 128.0f, 1.0f, nHr, 1);
			}
			if (FAILED(nHr)) { delete m_pcFontSegeo128; m_pcFontSegeo128 = nullptr; }

			// render text (if font present)
			if (m_pcFontSegeo128)
			{
				m_pcFontSegeo128->SetTextAttributes(0.0f, 0.2f, 0.0001f);

				// set additional tremble for "accepted" event
				float fDepthTremble = 0.0f;
				if (m_sMenuControl.eSelectionMovement == MenuControl::SelectionMovement::Accepted)
				{
					float fActionTimeElapsed = (fGlobalTime - m_sMenuControl.fActionStartTime) / m_sMenuControl.fActionTime;
					fDepthTremble = sin(fActionTimeElapsed*PI_F) * -3.0f;
				}

				m_pcFontSegeo128->ToRender(pcContext, fGlobalTime, m_sMenuControl.fYOrigin, 30.0f, fDepthTremble);
				RenderMenu(pcDevice, pcContext);
			}
			else OutputDebugString(L"Failed to create font!");

			// set back device
			ApplyStateblock(pcContext, &sStateBlock);

			if (pcDevice) { pcDevice->Release(); pcDevice = nullptr; }
			if (pcContext) { pcContext->Release(); pcContext = nullptr; }
		}
#pragma endregion
#pragma region draw stereo (optionally)

		// draw stereo target to screen (optionally)
		if ((m_eStereoMode) && (eD3DInterface == INTERFACE_IDXGISWAPCHAIN) && (eD3DMethod == METHOD_IDXGISWAPCHAIN_PRESENT))
		{
			// DX 11
			if ((m_ppcTexView11[0]) && (m_ppcTexView11[1]))
			{
				// get device and context
				ID3D11Device* pcDevice = nullptr;
				ID3D11DeviceContext* pcContext = nullptr;
				if (FAILED(GetDeviceAndContext((IDXGISwapChain*)pThis, &pcDevice, &pcContext)))
				{
					// release frame texture+view
					if (pcDevice) { pcDevice->Release(); pcDevice = nullptr; }
					if (pcContext) { pcContext->Release(); pcContext = nullptr; }
					return nullptr;
				}

				// get the viewport
				UINT dwNumViewports = 1;
				D3D11_VIEWPORT psViewport[16];
				pcContext->RSGetViewports(&dwNumViewports, psViewport);

				// backup all states
				D3DX11_STATE_BLOCK sStateBlock;
				CreateStateblock(pcContext, &sStateBlock);

				// clear all states, set targets
				ClearContextState(pcContext);

				// set first active render target - the stored back buffer - get the stored private data view
				ID3D11Texture2D* pcBackBuffer = nullptr;
				((IDXGISwapChain*)pThis)->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pcBackBuffer);
				ID3D11RenderTargetView* pcView = nullptr;
				UINT dwSize = sizeof(pcView);
				pcBackBuffer->GetPrivateData(PDIID_ID3D11TextureXD_RenderTargetView, &dwSize, (void*)&pcView);
				if (dwSize)
				{
					pcContext->OMSetRenderTargets(1, (ID3D11RenderTargetView**)&pcView, m_pcDSVGeometry11);
					pcView->Release();
				}
				else
				{
					// create render target view for the back buffer
					ID3D11RenderTargetView* pcRTV = nullptr;
					pcDevice->CreateRenderTargetView(pcBackBuffer, NULL, &pcRTV);
					if (pcRTV)
					{
						pcBackBuffer->SetPrivateDataInterface(PDIID_ID3D11TextureXD_RenderTargetView, pcRTV);
						pcRTV->Release();
					}
				}
				pcContext->RSSetViewports(dwNumViewports, psViewport);
				pcBackBuffer->Release();

				// clear the depth stencil
				pcContext->ClearDepthStencilView(m_pcDSVGeometry11, D3D11_CLEAR_DEPTH, 1.0f, 0);

				// create all bool
				bool bAllCreated = true;

				// create vertex shader
				if (!m_pcVertexShader11)
				{
					if (FAILED(CreateVertexShaderTechnique(pcDevice, &m_pcVertexShader11, &m_pcVertexLayout11, VertexShaderTechnique::PosUV2D)))
						bAllCreated = false;
				}
				// create pixel shader... TODO !! add option to switch output
				if (!m_pcPixelShader11)
				{
					if (FAILED(CreatePixelShaderEffect(pcDevice, &m_pcPixelShader11, PixelShaderTechnique::FullscreenSimple)))
						bAllCreated = false;
				}
				// Create vertex buffer
				if (!m_pcVertexBuffer11)
				{
					if (FAILED(CreateFullScreenVertexBuffer(pcDevice, &m_pcVertexBuffer11)))
						bAllCreated = false;
				}
				// create constant buffer
				if (!m_pcConstantBufferDirect11)
				{
					if (FAILED(CreateGeometryConstantBuffer(pcDevice, &m_pcConstantBufferDirect11, (UINT)sizeof(GeometryConstantBuffer))))
						bAllCreated = false;
				}

				if (bAllCreated)
				{
					// left/right eye
					for (int nEye = 0; nEye < 2; nEye++)
					{
						// Set the input layout
						pcContext->IASetInputLayout(m_pcVertexLayout11);

						// Set vertex buffer
						UINT stride = sizeof(TexturedVertex);
						UINT offset = 0;
						pcContext->IASetVertexBuffers(0, 1, &m_pcVertexBuffer11, &stride, &offset);

						// Set constant buffer, first update it... scale and translate the left and right image
						D3DXMATRIX sScale;
						D3DXMatrixScaling(&sScale, 0.5f, 1.0f, 1.0f);
						D3DXMATRIX sTrans;
						if (nEye == 0)
							D3DXMatrixTranslation(&sTrans, -0.5f, 0.0f, 0.0f);
						else
							D3DXMatrixTranslation(&sTrans, 0.5f, 0.0f, 0.0f);
						D3DXMatrixTranspose(&sTrans, &sTrans);
						D3DXMATRIX sProj;
						D3DXMatrixMultiply(&sProj, &sTrans, &sScale);
						pcContext->UpdateSubresource((ID3D11Resource*)m_pcConstantBufferDirect11, 0, NULL, &sProj, 0, 0);
						pcContext->VSSetConstantBuffers(0, 1, &m_pcConstantBufferDirect11);

						// Set primitive topology
						pcContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

						// set texture
						pcContext->PSSetShaderResources(0, 1, m_ppcTexView11[nEye]);

						// set shaders
						pcContext->VSSetShader(m_pcVertexShader11, 0, 0);
						pcContext->PSSetShader(m_pcPixelShader11, 0, 0);

						// Render a triangle
						pcContext->Draw(6, 0);
					}
				}

				// set back device
				ApplyStateblock(pcContext, &sStateBlock);

				if (pcDevice) { pcDevice->Release(); pcDevice = nullptr; }
				if (pcContext) { pcContext->Release(); pcContext = nullptr; }
			}
		}
#pragma endregion
	}

	return nullptr;
}
Exemple #4
0
// Render function
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
{
    // Avoid rendering when minimized
    if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
        return;

    ID3D11DeviceContext* ctx = g_pd3dDeviceContext;

    // Create and grow vertex/index buffers if needed
    if (!g_pVB || g_VertexBufferSize < draw_data->TotalVtxCount)
    {
        if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
        g_VertexBufferSize = draw_data->TotalVtxCount + 5000;
        D3D11_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
        desc.Usage = D3D11_USAGE_DYNAMIC;
        desc.ByteWidth = g_VertexBufferSize * sizeof(ImDrawVert);
        desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
        desc.MiscFlags = 0;
        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pVB) < 0)
            return;
    }
    if (!g_pIB || g_IndexBufferSize < draw_data->TotalIdxCount)
    {
        if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
        g_IndexBufferSize = draw_data->TotalIdxCount + 10000;
        D3D11_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
        desc.Usage = D3D11_USAGE_DYNAMIC;
        desc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx);
        desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pIB) < 0)
            return;
    }

    // Upload vertex/index data into a single contiguous GPU buffer
    D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
    if (ctx->Map(g_pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
        return;
    if (ctx->Map(g_pIB, 0, D3D11_MAP_WRITE_DISCARD, 0, &idx_resource) != S_OK)
        return;
    ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
    ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
    for (int n = 0; n < draw_data->CmdListsCount; n++)
    {
        const ImDrawList* cmd_list = draw_data->CmdLists[n];
        memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
        memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
        vtx_dst += cmd_list->VtxBuffer.Size;
        idx_dst += cmd_list->IdxBuffer.Size;
    }
    ctx->Unmap(g_pVB, 0);
    ctx->Unmap(g_pIB, 0);

    // Setup orthographic projection matrix into our constant buffer
    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
    {
        D3D11_MAPPED_SUBRESOURCE mapped_resource;
        if (ctx->Map(g_pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
            return;
        VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource.pData;
        float L = draw_data->DisplayPos.x;
        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
        float T = draw_data->DisplayPos.y;
        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
        float mvp[4][4] =
        {
            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
            { 0.0f,         0.0f,           0.5f,       0.0f },
            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
        };
        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
        ctx->Unmap(g_pVertexConstantBuffer, 0);
    }

    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
    struct BACKUP_DX11_STATE
    {
        UINT                        ScissorRectsCount, ViewportsCount;
        D3D11_RECT                  ScissorRects[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        D3D11_VIEWPORT              Viewports[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        ID3D11RasterizerState*      RS;
        ID3D11BlendState*           BlendState;
        FLOAT                       BlendFactor[4];
        UINT                        SampleMask;
        UINT                        StencilRef;
        ID3D11DepthStencilState*    DepthStencilState;
        ID3D11ShaderResourceView*   PSShaderResource;
        ID3D11SamplerState*         PSSampler;
        ID3D11PixelShader*          PS;
        ID3D11VertexShader*         VS;
        UINT                        PSInstancesCount, VSInstancesCount;
        ID3D11ClassInstance*        PSInstances[256], *VSInstances[256];   // 256 is max according to PSSetShader documentation
        D3D11_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
        ID3D11Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
        DXGI_FORMAT                 IndexBufferFormat;
        ID3D11InputLayout*          InputLayout;
    };
    BACKUP_DX11_STATE old;
    old.ScissorRectsCount = old.ViewportsCount = D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
    ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
    ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
    ctx->RSGetState(&old.RS);
    ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
    ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
    ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
    ctx->PSGetSamplers(0, 1, &old.PSSampler);
    old.PSInstancesCount = old.VSInstancesCount = 256;
    ctx->PSGetShader(&old.PS, old.PSInstances, &old.PSInstancesCount);
    ctx->VSGetShader(&old.VS, old.VSInstances, &old.VSInstancesCount);
    ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
    ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
    ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
    ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
    ctx->IAGetInputLayout(&old.InputLayout);

    // Setup desired DX state
    ImGui_ImplDX11_SetupRenderState(draw_data, ctx);

    // Render command lists
    // (Because we merged all buffers into a single one, we maintain our own offset into them)
    int global_idx_offset = 0;
    int global_vtx_offset = 0;
    ImVec2 clip_off = draw_data->DisplayPos;
    for (int n = 0; n < draw_data->CmdListsCount; n++)
    {
        const ImDrawList* cmd_list = draw_data->CmdLists[n];
        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
        {
            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
            if (pcmd->UserCallback != NULL)
            {
                // User callback, registered via ImDrawList::AddCallback()
                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
                    ImGui_ImplDX11_SetupRenderState(draw_data, ctx);
                else
                    pcmd->UserCallback(cmd_list, pcmd);
            }
            else
            {
                // Apply scissor/clipping rectangle
                const D3D11_RECT r = { (LONG)(pcmd->ClipRect.x - clip_off.x), (LONG)(pcmd->ClipRect.y - clip_off.y), (LONG)(pcmd->ClipRect.z - clip_off.x), (LONG)(pcmd->ClipRect.w - clip_off.y) };
                ctx->RSSetScissorRects(1, &r);

                // Bind texture, Draw
                ID3D11ShaderResourceView* texture_srv = (ID3D11ShaderResourceView*)pcmd->TextureId;
                ctx->PSSetShaderResources(0, 1, &texture_srv);
                ctx->DrawIndexed(pcmd->ElemCount, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset);
            }
        }
        global_idx_offset += cmd_list->IdxBuffer.Size;
        global_vtx_offset += cmd_list->VtxBuffer.Size;
    }

    // Restore modified DX state
    ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
    ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
    ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
    ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
    ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
    ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
    ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
    ctx->PSSetShader(old.PS, old.PSInstances, old.PSInstancesCount); if (old.PS) old.PS->Release();
    for (UINT i = 0; i < old.PSInstancesCount; i++) if (old.PSInstances[i]) old.PSInstances[i]->Release();
    ctx->VSSetShader(old.VS, old.VSInstances, old.VSInstancesCount); if (old.VS) old.VS->Release();
    ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
    for (UINT i = 0; i < old.VSInstancesCount; i++) if (old.VSInstances[i]) old.VSInstances[i]->Release();
    ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
    ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
    ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
    ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
}
// Render function
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
{
    ID3D11DeviceContext* ctx = g_pd3dDeviceContext;

    // Create and grow vertex/index buffers if needed
    if (!g_pVB || g_VertexBufferSize < draw_data->TotalVtxCount)
    {
        if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
        g_VertexBufferSize = draw_data->TotalVtxCount + 5000;
        D3D11_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
        desc.Usage = D3D11_USAGE_DYNAMIC;
        desc.ByteWidth = g_VertexBufferSize * sizeof(ImDrawVert);
        desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
        desc.MiscFlags = 0;
        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pVB) < 0)
            return;
    }
    if (!g_pIB || g_IndexBufferSize < draw_data->TotalIdxCount)
    {
        if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
        g_IndexBufferSize = draw_data->TotalIdxCount + 10000;
        D3D11_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
        desc.Usage = D3D11_USAGE_DYNAMIC;
        desc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx);
        desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pIB) < 0)
            return;
    }

    // Copy and convert all vertices into a single contiguous buffer
    D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
    if (ctx->Map(g_pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
        return;
    if (ctx->Map(g_pIB, 0, D3D11_MAP_WRITE_DISCARD, 0, &idx_resource) != S_OK)
        return;
    ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
    ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
    for (int n = 0; n < draw_data->CmdListsCount; n++)
    {
        const ImDrawList* cmd_list = draw_data->CmdLists[n];
        memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
        memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
        vtx_dst += cmd_list->VtxBuffer.Size;
        idx_dst += cmd_list->IdxBuffer.Size;
    }
    ctx->Unmap(g_pVB, 0);
    ctx->Unmap(g_pIB, 0);

    // Setup orthographic projection matrix into our constant buffer
    {
        D3D11_MAPPED_SUBRESOURCE mapped_resource;
        if (ctx->Map(g_pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
            return;
        VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource.pData;
        float L = 0.0f;
        float R = ImGui::GetIO().DisplaySize.x;
        float B = ImGui::GetIO().DisplaySize.y;
        float T = 0.0f;
        float mvp[4][4] =
        {
            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
            { 0.0f,         0.0f,           0.5f,       0.0f },
            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
        };
        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
        ctx->Unmap(g_pVertexConstantBuffer, 0);
    }

    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
    struct BACKUP_DX11_STATE
    {
        UINT                        ScissorRectsCount, ViewportsCount;
        D3D11_RECT                  ScissorRects[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        D3D11_VIEWPORT              Viewports[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        ID3D11RasterizerState*      RS;
        ID3D11BlendState*           BlendState;
        FLOAT                       BlendFactor[4];
        UINT                        SampleMask;
        UINT                        StencilRef;
        ID3D11DepthStencilState*    DepthStencilState;
        ID3D11ShaderResourceView*   PSShaderResource;
        ID3D11SamplerState*         PSSampler;
        ID3D11PixelShader*          PS;
        ID3D11VertexShader*         VS;
        UINT                        PSInstancesCount, VSInstancesCount;
        ID3D11ClassInstance*        PSInstances[256], *VSInstances[256];   // 256 is max according to PSSetShader documentation
        D3D11_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
        ID3D11Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
        DXGI_FORMAT                 IndexBufferFormat;
        ID3D11InputLayout*          InputLayout;
    };
    BACKUP_DX11_STATE old;
    old.ScissorRectsCount = old.ViewportsCount = D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
    ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
    ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
    ctx->RSGetState(&old.RS);
    ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
    ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
    ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
    ctx->PSGetSamplers(0, 1, &old.PSSampler);
    old.PSInstancesCount = old.VSInstancesCount = 256;
    ctx->PSGetShader(&old.PS, old.PSInstances, &old.PSInstancesCount);
    ctx->VSGetShader(&old.VS, old.VSInstances, &old.VSInstancesCount);
    ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
    ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
    ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
    ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
    ctx->IAGetInputLayout(&old.InputLayout);

    // Setup viewport
    D3D11_VIEWPORT vp;
    memset(&vp, 0, sizeof(D3D11_VIEWPORT));
    vp.Width = ImGui::GetIO().DisplaySize.x;
    vp.Height = ImGui::GetIO().DisplaySize.y;
    vp.MinDepth = 0.0f;
    vp.MaxDepth = 1.0f;
    vp.TopLeftX = vp.TopLeftY = 0.0f;
    ctx->RSSetViewports(1, &vp);

    // Bind shader and vertex buffers
    unsigned int stride = sizeof(ImDrawVert);
    unsigned int offset = 0;
    ctx->IASetInputLayout(g_pInputLayout);
    ctx->IASetVertexBuffers(0, 1, &g_pVB, &stride, &offset);
    ctx->IASetIndexBuffer(g_pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
    ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
    ctx->VSSetShader(g_pVertexShader, NULL, 0);
    ctx->VSSetConstantBuffers(0, 1, &g_pVertexConstantBuffer);
    ctx->PSSetShader(g_pPixelShader, NULL, 0);
    ctx->PSSetSamplers(0, 1, &g_pFontSampler);

    // Setup render state
    const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
    ctx->OMSetBlendState(g_pBlendState, blend_factor, 0xffffffff);
    ctx->OMSetDepthStencilState(g_pDepthStencilState, 0);
    ctx->RSSetState(g_pRasterizerState);

    // Render command lists
    int vtx_offset = 0;
    int idx_offset = 0;
    for (int n = 0; n < draw_data->CmdListsCount; n++)
    {
        const ImDrawList* cmd_list = draw_data->CmdLists[n];
        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
        {
            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
            if (pcmd->UserCallback)
            {
                pcmd->UserCallback(cmd_list, pcmd);
            }
            else
            {
                const D3D11_RECT r = { (LONG)pcmd->ClipRect.x, (LONG)pcmd->ClipRect.y, (LONG)pcmd->ClipRect.z, (LONG)pcmd->ClipRect.w };
                ctx->PSSetShaderResources(0, 1, (ID3D11ShaderResourceView**)&pcmd->TextureId);
                ctx->RSSetScissorRects(1, &r);
                ctx->DrawIndexed(pcmd->ElemCount, idx_offset, vtx_offset);
            }
            idx_offset += pcmd->ElemCount;
        }
        vtx_offset += cmd_list->VtxBuffer.Size;
    }

    // Restore modified DX state
    ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
    ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
    ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
    ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
    ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
    ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
    ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
    ctx->PSSetShader(old.PS, old.PSInstances, old.PSInstancesCount); if (old.PS) old.PS->Release();
    for (UINT i = 0; i < old.PSInstancesCount; i++) if (old.PSInstances[i]) old.PSInstances[i]->Release();
    ctx->VSSetShader(old.VS, old.VSInstances, old.VSInstancesCount); if (old.VS) old.VS->Release();
    ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
    for (UINT i = 0; i < old.VSInstancesCount; i++) if (old.VSInstances[i]) old.VSInstances[i]->Release();
    ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
    ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
    ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
    ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
}
void VegetationRendering::draw(ID3D11Device* device, const GameTime& gameTime)
{
	ID3D11DeviceContext* deviceContext;
	device->GetImmediateContext(&deviceContext);

	D3D11_VIEWPORT viewport;
	unsigned numViewports = 1;
	deviceContext->RSGetViewports(&numViewports, &viewport);

	camera->setAspectRatio(viewport.Width / viewport.Height);

	deviceContext->RSSetState(rsCullBack);
	deviceContext->OMSetBlendState(bsDefault, Vector4(0,0,0,0), 0xFFFFFFFF);
	terrain->draw(device, gameTime);
	//tessellationTerrain->draw(device, gameTime);
	if (complexTreesEnabled) trunk->draw(device, gameTime);

	deviceContext->RSSetState(rsCullNone);
	if(treeModelsEnabled)
	{
		separateLeafModel->draw(device, gameTime);
		billboardLeafModel->draw(device, gameTime);
	}

	if (defaultTreesEnabled)
	{
		for(int i = 0; i < trunk->getDrawInstanceCount(); ++i)
		{
			Matrix trunkWorld = Matrix::createTranslation(trunk->getTreePositions()[i]);
			/*if(defaultDetailedEnabled)
			{
				defaultTrunkDetailedModel->setWorld(trunkWorld);
				defaultTrunkDetailedModel->draw(device, gameTime);
			}
			else
			{*/
			defaultTrunkModel->setWorld(trunkWorld);
			defaultTrunkModel->draw(device, gameTime);
			//}
		}
	}
	
	if (complexGrassEnabled) complexGrass->draw(device, gameTime);

	if (defaultGrassEnabled)
	{
		for(int i = 0; i < complexGrass->getDrawInstanceCount(); ++i)
		{
			Matrix grassWorld = Matrix::createScale(complexGrass->getScale()) * Matrix::createTranslation(complexGrass->getGrassPatchPositions()[i]);
			if(defaultDetailedEnabled)
			{
				defaultGrassDetailedModel->setWorld(grassWorld);
				defaultGrassDetailedModel->draw(device, gameTime);
			}
			else
			{
				defaultGrassModel->setWorld(grassWorld);
				defaultGrassModel->draw(device, gameTime);
			}
		}
	}

	deviceContext->OMSetBlendState(bsAlphaToCoverage, Vector4(0,0,0,0), 0xFFFFFFFF);
	if (gsGrassEnabled) gsGrass->draw(device, gameTime);

	deviceContext->Release();
}