示例#1
0
// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
// If text or lines are blurry when integrating ImGui in your engine:
// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
void ImGui_ImplDX10_RenderDrawLists(ImDrawData* draw_data)
{
    ID3D10Device* ctx = g_pd3dDevice;

    // 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;
        D3D10_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
        desc.Usage = D3D10_USAGE_DYNAMIC;
        desc.ByteWidth = g_VertexBufferSize * sizeof(ImDrawVert);
        desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
        desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
        desc.MiscFlags = 0;
        if (ctx->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;
        D3D10_BUFFER_DESC desc;
        memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
        desc.Usage = D3D10_USAGE_DYNAMIC;
        desc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx);
        desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
        desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
        if (ctx->CreateBuffer(&desc, NULL, &g_pIB) < 0)
            return;
    }

    // Copy and convert all vertices into a single contiguous buffer
    ImDrawVert* vtx_dst = NULL;
    ImDrawIdx* idx_dst = NULL;
    g_pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&vtx_dst);
    g_pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&idx_dst);
    for (int n = 0; n < draw_data->CmdListsCount; n++)
    {
        const ImDrawList* cmd_list = draw_data->CmdLists[n];
        memcpy(vtx_dst, &cmd_list->VtxBuffer[0], cmd_list->VtxBuffer.size() * sizeof(ImDrawVert));
        memcpy(idx_dst, &cmd_list->IdxBuffer[0], cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx));
        vtx_dst += cmd_list->VtxBuffer.size();
        idx_dst += cmd_list->IdxBuffer.size();
    }
    g_pVB->Unmap();
    g_pIB->Unmap();

    // Setup orthographic projection matrix into our constant buffer
    {
        void* mapped_resource;
        if (g_pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
            return;
        VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource;
        const float L = 0.0f;
        const float R = ImGui::GetIO().DisplaySize.x;
        const float B = ImGui::GetIO().DisplaySize.y;
        const float T = 0.0f;
        const 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));
        g_pVertexConstantBuffer->Unmap();
    }

    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
    struct BACKUP_DX10_STATE
    {
        UINT                        ScissorRectsCount, ViewportsCount;
        D3D10_RECT                  ScissorRects[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        D3D10_VIEWPORT              Viewports[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
        ID3D10RasterizerState*      RS;
        ID3D10BlendState*           BlendState;
        FLOAT                       BlendFactor[4];
        UINT                        SampleMask;
        UINT                        StencilRef;
        ID3D10DepthStencilState*    DepthStencilState;
        ID3D10ShaderResourceView*   PSShaderResource;
        ID3D10SamplerState*         PSSampler;
        ID3D10PixelShader*          PS;
        ID3D10VertexShader*         VS;
        D3D10_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
        ID3D10Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
        DXGI_FORMAT                 IndexBufferFormat;
        ID3D10InputLayout*          InputLayout;
    };
    BACKUP_DX10_STATE old;
    old.ScissorRectsCount = old.ViewportsCount = D3D10_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);
    ctx->PSGetShader(&old.PS);
    ctx->VSGetShader(&old.VS);
    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
    D3D10_VIEWPORT vp;
    memset(&vp, 0, sizeof(D3D10_VIEWPORT));
    vp.Width = (UINT)ImGui::GetIO().DisplaySize.x;
    vp.Height = (UINT)ImGui::GetIO().DisplaySize.y;
    vp.MinDepth = 0.0f;
    vp.MaxDepth = 1.0f;
    vp.TopLeftX = vp.TopLeftY = 0;
    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(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
    ctx->VSSetShader(g_pVertexShader);
    ctx->VSSetConstantBuffers(0, 1, &g_pVertexConstantBuffer);
    ctx->PSSetShader(g_pPixelShader);
    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 D3D10_RECT r = { (LONG)pcmd->ClipRect.x, (LONG)pcmd->ClipRect.y, (LONG)pcmd->ClipRect.z, (LONG)pcmd->ClipRect.w };
                ctx->PSSetShaderResources(0, 1, (ID3D10ShaderResourceView**)&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); if (old.PS) old.PS->Release();
    ctx->VSSetShader(old.VS); if (old.VS) old.VS->Release();
    ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->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();
}
bool BlondeIndexBufferDX::CreateNew( int numIndices, void* data, int indexSize )
{
	this->CleanUp();

	this->numIndices = numIndices;
	this->indexSize = indexSize;

	if (EngineGlobals::renderAPI_DirectX && EngineGlobals::renderAPI_DirectXVersion == 9)
	{
		// Get the DirectX 9 device.
		LPDIRECT3DDEVICE9 pDevice = (LPDIRECT3DDEVICE9) BlondeGraphics::GetCurrentDevice();

		// Create the index buffer.
		HRESULT result;

		if (indexSize == 2) // 16-bit indices.
			result = pDevice->CreateIndexBuffer(indexSize * numIndices, D3DUSAGE_WRITEONLY, D3DFMT_INDEX16, D3DPOOL_MANAGED, &indexBufferDx9, NULL);
		else if (indexSize == 4) // 32-bit indices.
			result = pDevice->CreateIndexBuffer(indexSize * numIndices, D3DUSAGE_WRITEONLY, D3DFMT_INDEX32, D3DPOOL_MANAGED, &indexBufferDx9, NULL);
		else
		{
			EngineMessageHandler::SendMessageErrorConsole("Indices must be either 16 or 32 bit in size.");
			return false;
		}


		if (FAILED(result))
		{
			EngineMessageHandler::SendMessageErrorConsole("Error creating index buffer.");
			return false;
		}

		// Now fill the index buffer.
		Fill(data);
	}
	else if(EngineGlobals::renderAPI_DirectX && EngineGlobals::renderAPI_DirectXVersion == 10)
	{
		// Get the DirectX 10 device.
		ID3D10Device* pDevice = (ID3D10Device*) BlondeGraphics::GetCurrentDevice();

		D3D10_BUFFER_DESC bufferDesc;
		bufferDesc.Usage             = D3D10_USAGE_DEFAULT;
		bufferDesc.ByteWidth         = indexSize * numIndices;
		bufferDesc.BindFlags         = D3D10_BIND_INDEX_BUFFER;
		bufferDesc.CPUAccessFlags    = 0;
		bufferDesc.MiscFlags         = 0;


		D3D10_SUBRESOURCE_DATA initialData;
		initialData.pSysMem                 = data;
		initialData.SysMemPitch             = indexSize;		// Pass the index size as additional information. (SysMemPitch and SysMemSlicePitch are ignored when creating buffers).
		initialData.SysMemSlicePitch        = indexSize;


		if( FAILED( pDevice->CreateBuffer( &bufferDesc, &initialData, &indexBufferDx10 ) ) )
		{
			EngineMessageHandler::SendMessageErrorConsole("DX10: Error creating index buffer.");
			return false;
		}
	}

	return true;
}
示例#3
0
文件: d3d10.cpp 项目: fwaggle/mumble
bool D10State::init() {
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10CreateEffectFromMemory);
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10CreateStateBlock);
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10StateBlockMaskEnableAll);
	
	if (pD3D10CreateEffectFromMemory == NULL
	    || pD3D10CreateStateBlock == NULL
	    || pD3D10StateBlockMaskEnableAll == NULL) {
		ods("D3D10: Could not get handles for all required D3D10 state initialization functions");
		return false;
	}

	HRESULT hr;

	D3D10_STATE_BLOCK_MASK StateBlockMask;
	ZeroMemory(&StateBlockMask, sizeof(StateBlockMask));
	hr = pD3D10StateBlockMaskEnableAll(&StateBlockMask);
	if (FAILED(hr)) {
		ods("D3D10: D3D10StateBlockMaskEnableAll failed");
		return false;
	}
	
	hr = pD3D10CreateStateBlock(pDevice, &StateBlockMask, &pOrigStateBlock);
	if (FAILED(hr)) {
		ods("D3D10: D3D10CreateStateBlock for pOrigStateBlock failed");
		return false;
	}
	
	hr = pD3D10CreateStateBlock(pDevice, &StateBlockMask, &pMyStateBlock);
	if (FAILED(hr)) {
		ods("D3D10: D3D10CreateStateBlock for pMyStateBlock failed");
		return false;
	}

	hr = pOrigStateBlock->Capture();
	if (FAILED(hr)) {
		ods("D3D10: Failed to store original state block during init");
		return false;
	}

	ID3D10Texture2D *pBackBuffer = NULL;
	hr = pSwapChain->GetBuffer(0, __uuidof(*pBackBuffer), (LPVOID*)&pBackBuffer);
	if (FAILED(hr)) {
		ods("D3D10: pSwapChain->GetBuffer failure!");
		return false;
	}

	pDevice->ClearState();

	D3D10_TEXTURE2D_DESC backBufferSurfaceDesc;
	pBackBuffer->GetDesc(&backBufferSurfaceDesc);

	ZeroMemory(&vp, sizeof(vp));
	vp.Width = backBufferSurfaceDesc.Width;
	vp.Height = backBufferSurfaceDesc.Height;
	vp.MinDepth = 0;
	vp.MaxDepth = 1;
	vp.TopLeftX = 0;
	vp.TopLeftY = 0;
	pDevice->RSSetViewports(1, &vp);

	hr = pDevice->CreateRenderTargetView(pBackBuffer, NULL, &pRTV);
	if (FAILED(hr)) {
		ods("D3D10: pDevice->CreateRenderTargetView failed!");
		return false;
	}

	pDevice->OMSetRenderTargets(1, &pRTV, NULL);

	// Settings for an "over" operation.
	// https://en.wikipedia.org/w/index.php?title=Alpha_compositing&oldid=580659153#Description
	D3D10_BLEND_DESC blend;
	ZeroMemory(&blend, sizeof(blend));
	blend.BlendEnable[0] = TRUE;
	blend.SrcBlend = D3D10_BLEND_ONE;
	blend.DestBlend = D3D10_BLEND_INV_SRC_ALPHA;
	blend.BlendOp = D3D10_BLEND_OP_ADD;
	blend.SrcBlendAlpha = D3D10_BLEND_ONE;
	blend.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
	blend.BlendOpAlpha = D3D10_BLEND_OP_ADD;
	blend.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;

	hr = pDevice->CreateBlendState(&blend, &pBlendState);
	if (FAILED(hr)) {
		ods("D3D10: pDevice->CreateBlendState failed!");
		return false;
	}
	
	pDevice->OMSetBlendState(pBlendState, NULL, 0xffffffff);

	hr = pD3D10CreateEffectFromMemory((void *) g_main, sizeof(g_main), 0, pDevice, NULL, &pEffect);
	if (FAILED(hr)) {
		ods("D3D10: D3D10CreateEffectFromMemory failed!");
		return false;
	}

	pTechnique = pEffect->GetTechniqueByName("Render");
	if (pTechnique == NULL) {
		ods("D3D10: Could not get technique for name 'Render'");
		return false;
	}
	
	pDiffuseTexture = pEffect->GetVariableByName("txDiffuse")->AsShaderResource();
	if (pDiffuseTexture == NULL) {
		ods("D3D10: Could not get variable by name 'txDiffuse'");
		return false;
	}

	pTexture = NULL;
	pSRView = NULL;

	// Define the input layout
	D3D10_INPUT_ELEMENT_DESC layout[] = {
		{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
		{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
	};
	UINT numElements = sizeof(layout) / sizeof(layout[0]);

	// Create the input layout
	D3D10_PASS_DESC PassDesc;
	hr = pTechnique->GetPassByIndex(0)->GetDesc(&PassDesc);
	if (FAILED(hr)) {
		ods("D3D10: Couldn't get pass description for technique");
		return false;
	}
	
	hr = pDevice->CreateInputLayout(layout, numElements, PassDesc.pIAInputSignature, PassDesc.IAInputSignatureSize, &pVertexLayout);
	if (FAILED(hr)) {
		ods("D3D10: pDevice->CreateInputLayout failure!");
		return false;
	}
	
	pDevice->IASetInputLayout(pVertexLayout);

	D3D10_BUFFER_DESC bd;
	ZeroMemory(&bd, sizeof(bd));
	bd.Usage = D3D10_USAGE_DYNAMIC;
	bd.ByteWidth = sizeof(SimpleVertex) * 4;
	bd.BindFlags = D3D10_BIND_VERTEX_BUFFER;
	bd.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
	bd.MiscFlags = 0;
	
	hr = pDevice->CreateBuffer(&bd, NULL, &pVertexBuffer);
	if (FAILED(hr)) {
		ods("D3D10: pDevice->CreateBuffer failure!");
		return false;
	}

	DWORD indices[] = {
		0,1,3,
		1,2,3,
	};

	bd.Usage = D3D10_USAGE_DEFAULT;
	bd.ByteWidth = sizeof(DWORD) * 6;
	bd.BindFlags = D3D10_BIND_INDEX_BUFFER;
	bd.CPUAccessFlags = 0;
	bd.MiscFlags = 0;
	D3D10_SUBRESOURCE_DATA InitData;
	ZeroMemory(&InitData, sizeof(InitData));
	InitData.pSysMem = indices;
	
	hr = pDevice->CreateBuffer(&bd, &InitData, &pIndexBuffer);
	if (FAILED(hr)) {
		ods("D3D10: pDevice->CreateBuffer failure!");
		return false;
	}

	// Set index buffer
	pDevice->IASetIndexBuffer(pIndexBuffer, DXGI_FORMAT_R32_UINT, 0);

	// Set primitive topology
	pDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

	hr = pMyStateBlock->Capture();
	if (FAILED(hr)) {
		ods("D3D10: Failed to capture newly created state block");
		return false;
	}
	
	hr = pOrigStateBlock->Apply();
	if (FAILED(hr)) {
		ods("D3D10: Failed to restore original state block during init");
		return false;
	}

	pBackBuffer->Release();

	return true;
}
示例#4
0
bool CGutFontDX10::LoadShader(const char *filename)
{
	ID3D10Device *pDevice = GutGetGraphicsDeviceDX10();
	ID3D10Blob *pVSCode = NULL;

	// 載入Vertex Shader
	m_pVertexShader = GutLoadVertexShaderDX10_HLSL(filename, "VS", "vs_4_0", &pVSCode);
	if ( NULL==m_pVertexShader )
		return false;
	// 載入Pixel Shader
	m_pPixelShader = GutLoadPixelShaderDX10_HLSL(filename, "PS", "ps_4_0");
	if ( NULL==m_pPixelShader )
		return false;

	// Shader常數的記憶體空間
	{
		D3D10_BUFFER_DESC desc;
		//
		desc.ByteWidth = sizeof(Matrix4x4);
		desc.Usage = D3D10_USAGE_DYNAMIC;
		desc.BindFlags = D3D10_BIND_CONSTANT_BUFFER;
		desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
		desc.MiscFlags = 0;
		if ( D3D_OK != pDevice->CreateBuffer( &desc, NULL, &m_pShaderConstant ) )
			return false;
	}

	int max_characters = m_iNumRows * m_iNumColumns;

	// vertex buffer
	{
		D3D10_BUFFER_DESC desc;

		desc.ByteWidth = max_characters * sizeof(_FontVertex) * 4;
		desc.Usage = D3D10_USAGE_DYNAMIC ;
		desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
		desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
		desc.MiscFlags = 0;

		if ( D3D_OK != pDevice->CreateBuffer( &desc, NULL, &m_pVertexBuffer ) )
			return false;
	}
	// index buffer
	{
		D3D10_BUFFER_DESC desc;

		desc.ByteWidth = max_characters * 6 * sizeof(short);
		desc.Usage = D3D10_USAGE_DYNAMIC;
		desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
		desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
		desc.MiscFlags = 0;

		D3D10_SUBRESOURCE_DATA subDesc;
		ZeroMemory(&subDesc, sizeof(subDesc));
		subDesc.pSysMem = m_pIndexArray;

		if ( D3D_OK != pDevice->CreateBuffer( &desc, &subDesc, &m_pIndexBuffer ) )
			return false;
	}
	// rasterizer state物件
	{
		D3D10_RASTERIZER_DESC desc;
		GutSetDX10DefaultRasterizerDesc(desc);

		desc.CullMode = D3D10_CULL_NONE;

		if ( D3D_OK != pDevice->CreateRasterizerState(&desc, &m_pRasterizerState) )
			return false;
	}
	// 設定Vertex資料格式
	{
		D3D10_INPUT_ELEMENT_DESC layout[] =
		{
			{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0,  D3D10_INPUT_PER_VERTEX_DATA, 0 },
			{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0,12, D3D10_INPUT_PER_VERTEX_DATA, 0 }
		};
		//
		if ( D3D_OK != pDevice->CreateInputLayout(layout, sizeof(layout)/sizeof(D3D10_INPUT_ELEMENT_DESC), pVSCode->GetBufferPointer(), pVSCode->GetBufferSize(), &m_pVertexLayout ) )
			return false;
	}

	return true;
}
示例#5
0
void D10State::init() {
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10CreateEffectFromMemory);
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10CreateStateBlock);
	static HMODREF(GetModuleHandleW(L"D3D10.DLL"), D3D10StateBlockMaskEnableAll);

	HRESULT hr;

	dwMyThread = GetCurrentThreadId();

	D3D10_STATE_BLOCK_MASK StateBlockMask;
	ZeroMemory(&StateBlockMask, sizeof(StateBlockMask));
	pD3D10StateBlockMaskEnableAll(&StateBlockMask);
	pD3D10CreateStateBlock(pDevice, &StateBlockMask, &pOrigStateBlock);
	pD3D10CreateStateBlock(pDevice, &StateBlockMask, &pMyStateBlock);

	pOrigStateBlock->Capture();

	ID3D10Texture2D* pBackBuffer = NULL;
	hr = pSwapChain->GetBuffer(0, __uuidof(*pBackBuffer), (LPVOID*)&pBackBuffer);

	pDevice->ClearState();

	D3D10_TEXTURE2D_DESC backBufferSurfaceDesc;
	pBackBuffer->GetDesc(&backBufferSurfaceDesc);

	ZeroMemory(&vp, sizeof(vp));
	vp.Width = backBufferSurfaceDesc.Width;
	vp.Height = backBufferSurfaceDesc.Height;
	vp.MinDepth = 0;
	vp.MaxDepth = 1;
	vp.TopLeftX = 0;
	vp.TopLeftY = 0;
	pDevice->RSSetViewports(1, &vp);

	hr = pDevice->CreateRenderTargetView(pBackBuffer, NULL, &pRTV);

	pDevice->OMSetRenderTargets(1, &pRTV, NULL);

	D3D10_BLEND_DESC blend;
	ZeroMemory(&blend, sizeof(blend));
	blend.BlendEnable[0] = TRUE;
	blend.SrcBlend = D3D10_BLEND_ONE;
	blend.DestBlend = D3D10_BLEND_INV_SRC_ALPHA;
	blend.BlendOp = D3D10_BLEND_OP_ADD;
	blend.SrcBlendAlpha = D3D10_BLEND_ONE;
	blend.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
	blend.BlendOpAlpha = D3D10_BLEND_OP_ADD;
	blend.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;

	pDevice->CreateBlendState(&blend, &pBlendState);
	float bf[4];
	pDevice->OMSetBlendState(pBlendState, bf, 0xffffffff);

	pD3D10CreateEffectFromMemory((void *) g_main, sizeof(g_main), 0, pDevice, NULL, &pEffect);

	pTechnique = pEffect->GetTechniqueByName("Render");
	pDiffuseTexture = pEffect->GetVariableByName("txDiffuse")->AsShaderResource();

	pTexture = NULL;
	pSRView = NULL;

	// Define the input layout
	D3D10_INPUT_ELEMENT_DESC layout[] = {
		{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
		{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
	};
	UINT numElements = sizeof(layout) / sizeof(layout[0]);

	// Create the input layout
	D3D10_PASS_DESC PassDesc;
	pTechnique->GetPassByIndex(0)->GetDesc(&PassDesc);
	hr = pDevice->CreateInputLayout(layout, numElements, PassDesc.pIAInputSignature, PassDesc.IAInputSignatureSize, &pVertexLayout);
	pDevice->IASetInputLayout(pVertexLayout);

	D3D10_BUFFER_DESC bd;
	ZeroMemory(&bd, sizeof(bd));
	bd.Usage = D3D10_USAGE_DYNAMIC;
	bd.ByteWidth = sizeof(SimpleVertex) * 4;
	bd.BindFlags = D3D10_BIND_VERTEX_BUFFER;
	bd.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
	bd.MiscFlags = 0;
	hr = pDevice->CreateBuffer(&bd, NULL, &pVertexBuffer);

	DWORD indices[] = {
		0,1,3,
		1,2,3,
	};

	bd.Usage = D3D10_USAGE_DEFAULT;
	bd.ByteWidth = sizeof(DWORD) * 6;
	bd.BindFlags = D3D10_BIND_INDEX_BUFFER;
	bd.CPUAccessFlags = 0;
	bd.MiscFlags = 0;
	D3D10_SUBRESOURCE_DATA InitData;
	ZeroMemory(&InitData, sizeof(InitData));
	InitData.pSysMem = indices;
	hr = pDevice->CreateBuffer(&bd, &InitData, &pIndexBuffer);

	// Set index buffer
	pDevice->IASetIndexBuffer(pIndexBuffer, DXGI_FORMAT_R32_UINT, 0);

	// Set primitive topology
	pDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

	pMyStateBlock->Capture();
	pOrigStateBlock->Apply();

	pBackBuffer->Release();

	dwMyThread = 0;
}
void PeaksAndValleys::initMesh(int row, int column)
{
	_meshRow = row;
	_meshColumn = column;
	//
	_vertexCount = row * column;
	_indexCount = (row - 1)*(column - 1) * 6;
	float   *vertexData = new float[_vertexCount * 7];
	//创建网格的依据时左手坐标系,并且中心点在原点
	float     halfCenterX = (column-1)*0.5f;
	float     halfCenterZ = (row-1) *0.5f;
	int  index = 0;
	for (int i = 0; i < row; ++i)
	{
		float Z = i - halfCenterZ;
		for (int j = 0; j < column; ++j)
		{
			float x = j - halfCenterX;
			float y = static_get_height(x,Z);
			//Vertex
			vertexData[index] = x;
			vertexData[index + 1] = y;
			vertexData[index + 2] = Z;
			//Color
			if (y < -10)
			{
				vertexData[index + 3] = 1.0f;
				vertexData[index + 4] = 0.96f;
				vertexData[index + 5] = 0.62f;
			}
			else if (y < 5)
			{
				vertexData[index + 3] = 0.48f;
				vertexData[index + 4] = 0.77f;
				vertexData[index + 5] = 0.46;
			}
			else if (y < 12)
			{
				vertexData[index + 3] = 0.1f;
				vertexData[index + 4] = 0.48f;
				vertexData[index + 5] = 0.19f;
			}
			else if (y < 20)
			{
				vertexData[index + 3] = 0.45f;
				vertexData[index + 4] = 0.39f;
				vertexData[index + 5] = 0.34f;
			}
			else
			{
				vertexData[index + 3] = 1.0f;
				vertexData[index + 4] = 1.0f;
				vertexData[index + 5] = 1.0f;
			}
			vertexData[index + 6] = 1.0f;
			index += 7;
		}
	}
	//创建顶点缓冲区对象
	D3D10_BUFFER_DESC  bufferDesc;
	bufferDesc.ByteWidth = sizeof(float)*_vertexCount*7;
	bufferDesc.Usage = D3D10_USAGE_IMMUTABLE;
	bufferDesc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
	bufferDesc.CPUAccessFlags = 0;
	bufferDesc.MiscFlags = 0;
	//
	D3D10_SUBRESOURCE_DATA    resourceData;
	resourceData.pSysMem = vertexData;
	//
	ID3D10Device *device = DirectEngine::getInstance()->getDevice();
	int result = device->CreateBuffer(&bufferDesc,&resourceData,&_vertexBuffer);
	assert(result>=0);
	//inde buffer
	short *indexData = (short*)vertexData;
	index = 0;
	for (int i = 0; i < row - 1; ++i)
	{
		for (int j = 0; j < column - 1; ++j)
		{
			indexData[index] = i*column +j;
			indexData[index + 1] = (i + 1)*column + j;
			indexData[index+2] = (i+1)*column +(j+1);

			indexData[index + 3] = (i+1)*column +(j+1);
			indexData[index + 4] = i*column +j+1;
			indexData[index + 5] = i*column+j;

			index += 6;
		}
	}
	//
	D3D10_BUFFER_DESC indexDesc;
	indexDesc.ByteWidth = sizeof(short)*_indexCount;
	indexDesc.Usage = D3D10_USAGE_IMMUTABLE;
	indexDesc.BindFlags = D3D10_BIND_INDEX_BUFFER;
	indexDesc.CPUAccessFlags = 0;
	indexDesc.MiscFlags = 0;
	//
	D3D10_SUBRESOURCE_DATA indexResource;
	indexResource.pSysMem = indexData;
	result = device->CreateBuffer(&indexDesc,&indexResource,&_indexBuffer);
	assert(result>=0);
	//
	delete[] vertexData;
	vertexData = nullptr;
}