diff --git a/examples/directx10_example/build_win32.bat b/examples/directx10_example/build_win32.bat new file mode 100644 index 000000000..99500ab8c --- /dev/null +++ b/examples/directx10_example/build_win32.bat @@ -0,0 +1,4 @@ +@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler. +mkdir Debug +cl /nologo /Zi /MD /I ..\.. /I "%WindowsSdkDir%Include\um" /I "%WindowsSdkDir%Include\shared" /I "%DXSDK_DIR%Include" /D UNICODE *.cpp ..\..\*.cpp /FeDebug/directx10_example.exe /FoDebug/ /link /LIBPATH:"%DXSDK_DIR%/Lib/x86" d3d10.lib d3dcompiler.lib + diff --git a/examples/directx10_example/directx10_example.vcxproj b/examples/directx10_example/directx10_example.vcxproj new file mode 100644 index 000000000..c4f15c569 --- /dev/null +++ b/examples/directx10_example/directx10_example.vcxproj @@ -0,0 +1,159 @@ + + + + + Debug + Win32 + + + Debug + x64 + + + Release + Win32 + + + Release + x64 + + + + {345A953E-A004-4648-B442-DC5F9F11068C} + directx10_example + + + + Application + true + Unicode + + + Application + true + Unicode + + + Application + false + true + Unicode + + + Application + false + true + Unicode + + + + + + + + + + + + + + + + + + + $(ProjectDir)$(Configuration)\ + $(ProjectDir)$(Configuration)\ + + + $(ProjectDir)$(Configuration)\ + $(ProjectDir)$(Configuration)\ + + + $(ProjectDir)$(Configuration)\ + $(ProjectDir)$(Configuration)\ + + + $(ProjectDir)$(Configuration)\ + $(ProjectDir)$(Configuration)\ + + + + Level4 + Disabled + ..\..;%(AdditionalIncludeDirectories);$(DXSDK_DIR)Include; + + + true + d3d10.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies) + $(DXSDK_DIR)/Lib/x86;%(AdditionalLibraryDirectories) + Console + + + + + Level4 + Disabled + ..\..;%(AdditionalIncludeDirectories);$(DXSDK_DIR)Include; + + + true + d3d10.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies) + $(DXSDK_DIR)/Lib/x64;%(AdditionalLibraryDirectories) + Console + + + + + Level4 + MaxSpeed + true + true + ..\..;%(AdditionalIncludeDirectories);$(DXSDK_DIR)Include; + + + true + true + true + d3d10.lib;d3dcompiler.lib;dxgi.lib;imm32.lib;%(AdditionalDependencies) + $(DXSDK_DIR)/Lib/x86;%(AdditionalLibraryDirectories) + Console + + + + + Level4 + MaxSpeed + true + true + ..\..;%(AdditionalIncludeDirectories);$(DXSDK_DIR)Include; + + + true + true + true + d3d10.lib;d3dcompiler.lib;dxgi.lib;imm32.lib;%(AdditionalDependencies) + $(DXSDK_DIR)/Lib/x64;%(AdditionalLibraryDirectories) + Console + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/examples/directx10_example/directx10_example.vcxproj.filters b/examples/directx10_example/directx10_example.vcxproj.filters new file mode 100644 index 000000000..15e924c44 --- /dev/null +++ b/examples/directx10_example/directx10_example.vcxproj.filters @@ -0,0 +1,45 @@ + + + + + {0587d7a3-f2ce-4d56-b84f-a0005d3bfce6} + + + {08e36723-ce4f-4cff-9662-c40801cf1acf} + + + + + imgui + + + imgui + + + sources + + + imgui + + + + + imgui + + + sources + + + sources + + + imgui + + + imgui + + + + + + \ No newline at end of file diff --git a/examples/directx10_example/imgui_impl_dx10.cpp b/examples/directx10_example/imgui_impl_dx10.cpp new file mode 100644 index 000000000..3577e043a --- /dev/null +++ b/examples/directx10_example/imgui_impl_dx10.cpp @@ -0,0 +1,508 @@ +// ImGui Win32 + DirectX10 binding +// You can copy and use unmodified imgui_impl_* files in your project. +// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown(). +// See main.cpp for an example of using this. +// https://github.com/ocornut/imgui + +#include "imgui.h" +#include "imgui_impl_dx10.h" + +// DirectX +#include +#include +#include +#define DIRECTINPUT_VERSION 0x0800 +#include + +// Data +static INT64 g_Time = 0; +static INT64 g_TicksPerSecond = 0; + +static HWND g_hWnd = 0; +static ID3D10Device* g_pd3dDevice = NULL; +static ID3D10Buffer* g_pVB = NULL; +static ID3D10Buffer* g_pIB = NULL; +static ID3D10Blob * g_pVertexShaderBlob = NULL; +static ID3D10VertexShader* g_pVertexShader = NULL; +static ID3D10InputLayout* g_pInputLayout = NULL; +static ID3D10Buffer* g_pVertexConstantBuffer = NULL; +static ID3D10Blob * g_pPixelShaderBlob = NULL; +static ID3D10PixelShader* g_pPixelShader = NULL; +static ID3D10SamplerState* g_pFontSampler = NULL; +static ID3D10ShaderResourceView*g_pFontTextureView = NULL; +static ID3D10RasterizerState* g_pRasterizerState = NULL; +static ID3D10BlendState* g_pBlendState = NULL; +static int g_VertexBufferSize = 5000, g_IndexBufferSize = 10000; + +struct VERTEX_CONSTANT_BUFFER +{ + float mvp[4][4]; +}; + +// 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) +{ + void* vtx_resourceData; + void* idx_resourceData; + // 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 (g_pd3dDevice->CreateBuffer(&desc, nullptr, &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 bufferDesc; + memset(&bufferDesc, 0, sizeof(D3D10_BUFFER_DESC)); + bufferDesc.Usage = D3D10_USAGE_DYNAMIC; + bufferDesc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx); + bufferDesc.BindFlags = D3D10_BIND_INDEX_BUFFER; + bufferDesc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE; + if (g_pd3dDevice->CreateBuffer(&bufferDesc, nullptr, &g_pIB) < 0) + return; + } + + g_pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, &vtx_resourceData); + g_pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, &idx_resourceData); + ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resourceData; + ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resourceData; + 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* pmappedResource; + g_pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &pmappedResource); + + VERTEX_CONSTANT_BUFFER* pConstantBuffer = (VERTEX_CONSTANT_BUFFER*)pmappedResource; + 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(&pConstantBuffer->mvp, mvp, sizeof(mvp)); + D3D10_MAPPED_TEXTURE2D texMap; + g_pVertexConstantBuffer->Unmap(); + } + + // Setup viewport + { + D3D10_VIEWPORT vp; + memset(&vp, 0, sizeof(D3D10_VIEWPORT)); + vp.Width = ImGui::GetIO().DisplaySize.x; + vp.Height = ImGui::GetIO().DisplaySize.y; + vp.MinDepth = 0.0f; + vp.MaxDepth = 1.0f; + vp.TopLeftX = 0; + vp.TopLeftY = 0; + g_pd3dDevice->RSSetViewports(1, &vp); + } + + // Bind shader and vertex buffers + unsigned int stride = sizeof(ImDrawVert); + unsigned int offset = 0; + g_pd3dDevice->IASetInputLayout(g_pInputLayout); + g_pd3dDevice->IASetVertexBuffers(0, 1, &g_pVB, &stride, &offset); + g_pd3dDevice->IASetIndexBuffer(g_pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0); + g_pd3dDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST); + g_pd3dDevice->VSSetShader(g_pVertexShader); + g_pd3dDevice->VSSetConstantBuffers(0, 1, &g_pVertexConstantBuffer); + g_pd3dDevice->PSSetShader(g_pPixelShader); + g_pd3dDevice->PSSetSamplers(0, 1, &g_pFontSampler); + + // Setup render state + const float blendFactor[4] = { 0.f, 0.f, 0.f, 0.f }; + g_pd3dDevice->OMSetBlendState(g_pBlendState, blendFactor, 0xffffffff); + g_pd3dDevice->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 }; + g_pd3dDevice->PSSetShaderResources(0, 1, (ID3D10ShaderResourceView**)&pcmd->TextureId); + g_pd3dDevice->RSSetScissorRects(1, &r); + g_pd3dDevice->DrawIndexed(pcmd->ElemCount, idx_offset, vtx_offset); + } + idx_offset += pcmd->ElemCount; + } + vtx_offset += cmd_list->VtxBuffer.size(); + } + + // Restore modified state + g_pd3dDevice->IASetInputLayout(NULL); + g_pd3dDevice->PSSetShader(NULL); + g_pd3dDevice->VSSetShader(NULL); +} + +IMGUI_API LRESULT ImGui_ImplDX10_WndProcHandler(HWND, UINT msg, WPARAM wParam, LPARAM lParam) +{ + ImGuiIO& io = ImGui::GetIO(); + switch (msg) + { + case WM_LBUTTONDOWN: + io.MouseDown[0] = true; + return true; + case WM_LBUTTONUP: + io.MouseDown[0] = false; + return true; + case WM_RBUTTONDOWN: + io.MouseDown[1] = true; + return true; + case WM_RBUTTONUP: + io.MouseDown[1] = false; + return true; + case WM_MBUTTONDOWN: + io.MouseDown[2] = true; + return true; + case WM_MBUTTONUP: + io.MouseDown[2] = false; + return true; + case WM_MOUSEWHEEL: + io.MouseWheel += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f; + return true; + case WM_MOUSEMOVE: + io.MousePos.x = (signed short)(lParam); + io.MousePos.y = (signed short)(lParam >> 16); + return true; + case WM_KEYDOWN: + if (wParam < 256) + io.KeysDown[wParam] = 1; + return true; + case WM_KEYUP: + if (wParam < 256) + io.KeysDown[wParam] = 0; + return true; + case WM_CHAR: + // You can also use ToAscii()+GetKeyboardState() to retrieve characters. + if (wParam > 0 && wParam < 0x10000) + io.AddInputCharacter((unsigned short)wParam); + return true; + } + return 0; +} + +static void ImGui_ImplDX10_CreateFontsTexture() +{ + ImGuiIO& io = ImGui::GetIO(); + + // Build + unsigned char* pixels; + int width, height; + io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); + + // Create DX10 texture + { + D3D10_TEXTURE2D_DESC texDesc; + ZeroMemory(&texDesc, sizeof(texDesc)); + texDesc.Width = width; + texDesc.Height = height; + texDesc.MipLevels = 1; + texDesc.ArraySize = 1; + texDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; + texDesc.SampleDesc.Count = 1; + texDesc.Usage = D3D10_USAGE_DEFAULT; + texDesc.BindFlags = D3D10_BIND_SHADER_RESOURCE; + texDesc.CPUAccessFlags = 0; + + ID3D10Texture2D *pTexture = NULL; + D3D10_SUBRESOURCE_DATA subResource; + subResource.pSysMem = pixels; + subResource.SysMemPitch = texDesc.Width * 4; + subResource.SysMemSlicePitch = 0; + g_pd3dDevice->CreateTexture2D(&texDesc, &subResource, &pTexture); + + // Create texture view + D3D10_SHADER_RESOURCE_VIEW_DESC srvDesc; + ZeroMemory(&srvDesc, sizeof(srvDesc)); + srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; + srvDesc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D; + srvDesc.Texture2D.MipLevels = texDesc.MipLevels; + srvDesc.Texture2D.MostDetailedMip = 0; + g_pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &g_pFontTextureView); + pTexture->Release(); + } + + // Store our identifier + io.Fonts->TexID = (void *)g_pFontTextureView; + + // Create texture sampler + { + D3D10_SAMPLER_DESC samplerDesc; + ZeroMemory(&samplerDesc, sizeof(samplerDesc)); + samplerDesc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR; + samplerDesc.AddressU = D3D10_TEXTURE_ADDRESS_WRAP; + samplerDesc.AddressV = D3D10_TEXTURE_ADDRESS_WRAP; + samplerDesc.AddressW = D3D10_TEXTURE_ADDRESS_WRAP; + samplerDesc.MipLODBias = 0.f; + samplerDesc.ComparisonFunc = D3D10_COMPARISON_ALWAYS; + samplerDesc.MinLOD = 0.f; + samplerDesc.MaxLOD = 0.f; + g_pd3dDevice->CreateSamplerState(&samplerDesc, &g_pFontSampler); + } + + // Cleanup (don't clear the input data if you want to append new fonts later) + io.Fonts->ClearInputData(); + io.Fonts->ClearTexData(); +} + +bool ImGui_ImplDX10_CreateDeviceObjects() +{ + if (!g_pd3dDevice) + return false; + if (g_pFontSampler) + ImGui_ImplDX10_InvalidateDeviceObjects(); + + // Create the vertex shader + { + static const char* vertexShader = + "cbuffer vertexBuffer : register(b0) \ + {\ + float4x4 ProjectionMatrix; \ + };\ + struct VS_INPUT\ + {\ + float2 pos : POSITION;\ + float4 col : COLOR0;\ + float2 uv : TEXCOORD0;\ + };\ + \ + struct PS_INPUT\ + {\ + float4 pos : SV_POSITION;\ + float4 col : COLOR0;\ + float2 uv : TEXCOORD0;\ + };\ + \ + PS_INPUT main(VS_INPUT input)\ + {\ + PS_INPUT output;\ + output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\ + output.col = input.col;\ + output.uv = input.uv;\ + return output;\ + }"; + + D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_4_0", 0, 0, &g_pVertexShaderBlob, NULL); + if (g_pVertexShaderBlob == NULL) // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob! + return false; + if (g_pd3dDevice->CreateVertexShader((DWORD*)g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), &g_pVertexShader) != S_OK) + return false; + + // Create the input layout + D3D10_INPUT_ELEMENT_DESC localLayout[] = { + { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->pos), D3D10_INPUT_PER_VERTEX_DATA, 0 }, + { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->uv), D3D10_INPUT_PER_VERTEX_DATA, 0 }, + { "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (size_t)(&((ImDrawVert*)0)->col), D3D10_INPUT_PER_VERTEX_DATA, 0 }, + }; + + if (g_pd3dDevice->CreateInputLayout(localLayout, 3, g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), &g_pInputLayout) != S_OK) + return false; + + // Create the constant buffer + { + D3D10_BUFFER_DESC cbDesc; + cbDesc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER); + cbDesc.Usage = D3D10_USAGE_DYNAMIC; + cbDesc.BindFlags = D3D10_BIND_CONSTANT_BUFFER; + cbDesc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE; + cbDesc.MiscFlags = 0; + g_pd3dDevice->CreateBuffer(&cbDesc, nullptr, &g_pVertexConstantBuffer); + } + } + + // Create the pixel shader + { + static const char* pixelShader = + "struct PS_INPUT\ + {\ + float4 pos : SV_POSITION;\ + float4 col : COLOR0;\ + float2 uv : TEXCOORD0;\ + };\ + sampler sampler0;\ + Texture2D texture0;\ + \ + float4 main(PS_INPUT input) : SV_Target\ + {\ + float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \ + return out_col; \ + }"; + + D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_4_0", 0, 0, &g_pPixelShaderBlob, NULL); + if (g_pPixelShaderBlob == NULL) // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob! + return false; + if (g_pd3dDevice->CreatePixelShader((DWORD*)g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize(), &g_pPixelShader) != S_OK) + return false; + } + + // Create the blending setup + { + D3D10_BLEND_DESC desc; + ZeroMemory(&desc, sizeof(desc)); + desc.AlphaToCoverageEnable = false; + desc.BlendEnable[0] = true; + desc.SrcBlend = D3D10_BLEND_SRC_ALPHA; + desc.DestBlend = D3D10_BLEND_INV_SRC_ALPHA; + desc.BlendOp = D3D10_BLEND_OP_ADD; + desc.SrcBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA; + desc.DestBlendAlpha = D3D10_BLEND_ZERO; + desc.BlendOpAlpha = D3D10_BLEND_OP_ADD; + desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL; + g_pd3dDevice->CreateBlendState(&desc, &g_pBlendState); + } + + // Create the rasterizer state + { + D3D10_RASTERIZER_DESC desc; + ZeroMemory(&desc, sizeof(desc)); + desc.FillMode = D3D10_FILL_SOLID; + desc.CullMode = D3D10_CULL_NONE; + desc.ScissorEnable = true; + desc.DepthClipEnable = true; + g_pd3dDevice->CreateRasterizerState(&desc, &g_pRasterizerState); + } + + ImGui_ImplDX10_CreateFontsTexture(); + + return true; +} + +void ImGui_ImplDX10_InvalidateDeviceObjects() +{ + if (!g_pd3dDevice) + return; + + if (g_pFontSampler) { g_pFontSampler->Release(); g_pFontSampler = NULL; } + if (g_pFontTextureView) { g_pFontTextureView->Release(); g_pFontTextureView = NULL; ImGui::GetIO().Fonts->TexID = 0; } + if (g_pIB) { g_pIB->Release(); g_pIB = NULL; } + if (g_pVB) { g_pVB->Release(); g_pVB = NULL; } + + if (g_pBlendState) { g_pBlendState->Release(); g_pBlendState = NULL; } + if (g_pRasterizerState) { g_pRasterizerState->Release(); g_pRasterizerState = NULL; } + if (g_pPixelShader) { g_pPixelShader->Release(); g_pPixelShader = NULL; } + if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; } + if (g_pVertexConstantBuffer) { g_pVertexConstantBuffer->Release(); g_pVertexConstantBuffer = NULL; } + if (g_pInputLayout) { g_pInputLayout->Release(); g_pInputLayout = NULL; } + if (g_pVertexShader) { g_pVertexShader->Release(); g_pVertexShader = NULL; } + if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; } +} + +bool ImGui_ImplDX10_Init(void* hwnd, ID3D10Device* device) +{ + g_hWnd = (HWND)hwnd; + g_pd3dDevice = device; + + if (!QueryPerformanceFrequency((LARGE_INTEGER *)&g_TicksPerSecond)) + return false; + if (!QueryPerformanceCounter((LARGE_INTEGER *)&g_Time)) + return false; + + ImGuiIO& io = ImGui::GetIO(); + io.KeyMap[ImGuiKey_Tab] = VK_TAB; // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array that we will update during the application lifetime. + io.KeyMap[ImGuiKey_LeftArrow] = VK_LEFT; + io.KeyMap[ImGuiKey_RightArrow] = VK_RIGHT; + io.KeyMap[ImGuiKey_UpArrow] = VK_UP; + io.KeyMap[ImGuiKey_DownArrow] = VK_DOWN; + io.KeyMap[ImGuiKey_PageUp] = VK_PRIOR; + io.KeyMap[ImGuiKey_PageDown] = VK_NEXT; + io.KeyMap[ImGuiKey_Home] = VK_HOME; + io.KeyMap[ImGuiKey_End] = VK_END; + io.KeyMap[ImGuiKey_Delete] = VK_DELETE; + io.KeyMap[ImGuiKey_Backspace] = VK_BACK; + io.KeyMap[ImGuiKey_Enter] = VK_RETURN; + io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE; + io.KeyMap[ImGuiKey_A] = 'A'; + io.KeyMap[ImGuiKey_C] = 'C'; + io.KeyMap[ImGuiKey_V] = 'V'; + io.KeyMap[ImGuiKey_X] = 'X'; + io.KeyMap[ImGuiKey_Y] = 'Y'; + io.KeyMap[ImGuiKey_Z] = 'Z'; + + io.RenderDrawListsFn = ImGui_ImplDX10_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer. + io.ImeWindowHandle = g_hWnd; + + return true; +} + +void ImGui_ImplDX10_Shutdown() +{ + ImGui_ImplDX10_InvalidateDeviceObjects(); + ImGui::Shutdown(); + g_pd3dDevice = NULL; + g_hWnd = (HWND)0; +} + +void ImGui_ImplDX10_NewFrame() +{ + if (!g_pVB) + ImGui_ImplDX10_CreateDeviceObjects(); + + ImGuiIO& io = ImGui::GetIO(); + + // Setup display size (every frame to accommodate for window resizing) + RECT rect; + GetClientRect(g_hWnd, &rect); + io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top)); + + // Setup time step + INT64 current_time; + QueryPerformanceCounter((LARGE_INTEGER *)¤t_time); + io.DeltaTime = (float)(current_time - g_Time) / g_TicksPerSecond; + g_Time = current_time; + + // Read keyboard modifiers inputs + io.KeyCtrl = (GetKeyState(VK_CONTROL) & 0x8000) != 0; + io.KeyShift = (GetKeyState(VK_SHIFT) & 0x8000) != 0; + io.KeyAlt = (GetKeyState(VK_MENU) & 0x8000) != 0; + // io.KeysDown : filled by WM_KEYDOWN/WM_KEYUP events + // io.MousePos : filled by WM_MOUSEMOVE events + // io.MouseDown : filled by WM_*BUTTON* events + // io.MouseWheel : filled by WM_MOUSEWHEEL events + + // Hide OS mouse cursor if ImGui is drawing it + SetCursor(io.MouseDrawCursor ? NULL : LoadCursor(NULL, IDC_ARROW)); + + // Start the frame + ImGui::NewFrame(); +} diff --git a/examples/directx10_example/imgui_impl_dx10.h b/examples/directx10_example/imgui_impl_dx10.h new file mode 100644 index 000000000..1aab60284 --- /dev/null +++ b/examples/directx10_example/imgui_impl_dx10.h @@ -0,0 +1,22 @@ +// ImGui Win32 + DirectX10 binding +// You can copy and use unmodified imgui_impl_* files in your project. +// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown(). +// See main.cpp for an example of using this. +// https://github.com/ocornut/imgui + +struct ID3D10Device; + +IMGUI_API bool ImGui_ImplDX10_Init(void* hwnd, ID3D10Device* device); +IMGUI_API void ImGui_ImplDX10_Shutdown(); +IMGUI_API void ImGui_ImplDX10_NewFrame(); + +// Use if you want to reset your rendering device without losing ImGui state. +IMGUI_API void ImGui_ImplDX10_InvalidateDeviceObjects(); +IMGUI_API bool ImGui_ImplDX10_CreateDeviceObjects(); + +// Handler for Win32 messages, update mouse/keyboard data. +// You may or not need this for your implementation, but it can serve as reference for handling inputs. +// Commented out to avoid dragging dependencies on types. You can copy the extern declaration in your code. +/* +IMGUI_API LRESULT ImGui_ImplDX10_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); +*/ diff --git a/examples/directx10_example/main.cpp b/examples/directx10_example/main.cpp new file mode 100644 index 000000000..9c71da282 --- /dev/null +++ b/examples/directx10_example/main.cpp @@ -0,0 +1,225 @@ +// ImGui - standalone example application for DirectX 10 + +#include +#include "imgui_impl_dx10.h" +#include +#include +#include +#define DIRECTINPUT_VERSION 0x0800 +#include +#include + +// Data +static ID3D10Device* g_pd3dDevice = NULL; +static IDXGISwapChain* g_pSwapChain = NULL; +static ID3D10RenderTargetView* g_mainRenderTargetView = NULL; + +void CreateRenderTarget() +{ + DXGI_SWAP_CHAIN_DESC sd; + g_pSwapChain->GetDesc(&sd); + + // Create the render target + ID3D10Texture2D* pBackBuffer; + D3D10_RENDER_TARGET_VIEW_DESC render_target_view_desc; + ZeroMemory(&render_target_view_desc, sizeof(render_target_view_desc)); + render_target_view_desc.Format = sd.BufferDesc.Format; + render_target_view_desc.ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2D; + g_pSwapChain->GetBuffer(0, __uuidof(ID3D10Texture2D), (LPVOID*)&pBackBuffer); + g_pd3dDevice->CreateRenderTargetView(pBackBuffer, &render_target_view_desc, &g_mainRenderTargetView); + g_pd3dDevice->OMSetRenderTargets(1, &g_mainRenderTargetView, NULL); + pBackBuffer->Release(); +} + +void CleanupRenderTarget() +{ + if (g_mainRenderTargetView) { g_mainRenderTargetView->Release(); g_mainRenderTargetView = NULL; } +} + +HRESULT CreateDeviceD3D(HWND hWnd) +{ + // Setup swap chain + DXGI_SWAP_CHAIN_DESC sd; + { + ZeroMemory(&sd, sizeof(sd)); + sd.BufferCount = 2; + sd.BufferDesc.Width = 0; + sd.BufferDesc.Height = 0; + sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; + sd.BufferDesc.RefreshRate.Numerator = 60; + sd.BufferDesc.RefreshRate.Denominator = 1; + sd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH; + sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; + sd.OutputWindow = hWnd; + sd.SampleDesc.Count = 1; + sd.SampleDesc.Quality = 0; + sd.Windowed = TRUE; + sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; + } + + UINT createDeviceFlags = 0; +#ifdef _DEBUG + createDeviceFlags |= D3D10_CREATE_DEVICE_DEBUG; +#endif + D3D_FEATURE_LEVEL featureLevel; + const D3D_FEATURE_LEVEL featureLevelArray[1] = { D3D_FEATURE_LEVEL_10_1, }; + if (D3D10CreateDeviceAndSwapChain(NULL, D3D10_DRIVER_TYPE_HARDWARE, NULL, createDeviceFlags, D3D10_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice) != S_OK) + return E_FAIL; + + // Setup rasterizer + { + D3D10_RASTERIZER_DESC RSDesc; + memset(&RSDesc, 0, sizeof(D3D10_RASTERIZER_DESC)); + RSDesc.FillMode = D3D10_FILL_SOLID; + RSDesc.CullMode = D3D10_CULL_NONE; + RSDesc.FrontCounterClockwise = FALSE; + RSDesc.DepthBias = 0; + RSDesc.SlopeScaledDepthBias = 0.0f; + RSDesc.DepthBiasClamp = 0; + RSDesc.DepthClipEnable = TRUE; + RSDesc.ScissorEnable = TRUE; + RSDesc.AntialiasedLineEnable = FALSE; + RSDesc.MultisampleEnable = (sd.SampleDesc.Count > 1) ? TRUE : FALSE; + + ID3D10RasterizerState* pRState = NULL; + g_pd3dDevice->CreateRasterizerState(&RSDesc, &pRState); + g_pd3dDevice->RSSetState(pRState); + pRState->Release(); + } + + CreateRenderTarget(); + + return S_OK; +} + +void CleanupDeviceD3D() +{ + CleanupRenderTarget(); + if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = NULL; } + if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = NULL; } +} + +extern LRESULT ImGui_ImplDX10_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); +LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) +{ + if (ImGui_ImplDX10_WndProcHandler(hWnd, msg, wParam, lParam)) + return true; + + switch (msg) + { + case WM_SIZE: + if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED) + { + ImGui_ImplDX10_InvalidateDeviceObjects(); + CleanupRenderTarget(); + g_pSwapChain->ResizeBuffers(0, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam), DXGI_FORMAT_UNKNOWN, 0); + CreateRenderTarget(); + ImGui_ImplDX10_CreateDeviceObjects(); + } + return 0; + case WM_SYSCOMMAND: + if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu + return 0; + break; + case WM_DESTROY: + PostQuitMessage(0); + return 0; + } + return DefWindowProc(hWnd, msg, wParam, lParam); +} + +int main(int, char**) +{ + // Create application window + WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(NULL), NULL, LoadCursor(NULL, IDC_ARROW), NULL, NULL, _T("ImGui Example"), NULL }; + RegisterClassEx(&wc); + HWND hwnd = CreateWindow(_T("ImGui Example"), _T("ImGui DirectX10 Example"), WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, NULL, NULL, wc.hInstance, NULL); + + // Initialize Direct3D + if (CreateDeviceD3D(hwnd) < 0) + { + CleanupDeviceD3D(); + UnregisterClass(_T("ImGui Example"), wc.hInstance); + return 1; + } + + // Show the window + ShowWindow(hwnd, SW_SHOWDEFAULT); + UpdateWindow(hwnd); + + // Setup ImGui binding + ImGui_ImplDX10_Init(hwnd, g_pd3dDevice); + + // Load Fonts + // (see extra_fonts/README.txt for more details) + //ImGuiIO& io = ImGui::GetIO(); + //io.Fonts->AddFontDefault(); + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/Cousine-Regular.ttf", 15.0f); + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 16.0f); + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyClean.ttf", 13.0f); + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyTiny.ttf", 10.0f); + //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese()); + + // Merge glyphs from multiple fonts into one (e.g. combine default font with another with Chinese glyphs, or add icons) + //static const ImWchar icons_ranges[] = { 0xf000, 0xf3ff, 0 }; // will not be copied by AddFont* so keep in scope. + //ImFontConfig icons_config; icons_config.MergeMode = true; icons_config.PixelSnapH = true; + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 18.0f); + //io.Fonts->AddFontFromFileTTF("../../extra_fonts/fontawesome-webfont.ttf", 18.0f, &icons_config, icons_ranges); + + bool show_test_window = true; + bool show_another_window = false; + ImVec4 clear_col = ImColor(114, 144, 154); + + // Main loop + MSG msg; + ZeroMemory(&msg, sizeof(msg)); + while (msg.message != WM_QUIT) + { + if (PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE)) + { + TranslateMessage(&msg); + DispatchMessage(&msg); + continue; + } + ImGui_ImplDX10_NewFrame(); + + // 1. Show a simple window + // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug" + { + static float f = 0.0f; + ImGui::Text("Hello, world!"); + ImGui::SliderFloat("float", &f, 0.0f, 1.0f); + ImGui::ColorEdit3("clear color", (float*)&clear_col); + if (ImGui::Button("Test Window")) show_test_window ^= 1; + if (ImGui::Button("Another Window")) show_another_window ^= 1; + ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); + } + + // 2. Show another simple window, this time using an explicit Begin/End pair + if (show_another_window) + { + ImGui::SetNextWindowSize(ImVec2(200,100), ImGuiSetCond_FirstUseEver); + ImGui::Begin("Another Window", &show_another_window); + ImGui::Text("Hello"); + ImGui::End(); + } + + // 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow() + if (show_test_window) + { + ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCond_FirstUseEver); // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly! + ImGui::ShowTestWindow(&show_test_window); + } + + // Rendering + g_pd3dDevice->ClearRenderTargetView(g_mainRenderTargetView, (float*)&clear_col); + ImGui::Render(); + g_pSwapChain->Present(0, 0); + } + + ImGui_ImplDX10_Shutdown(); + CleanupDeviceD3D(); + UnregisterClass(_T("ImGui Example"), wc.hInstance); + + return 0; +} diff --git a/examples/imgui_examples_msvc2010.sln b/examples/imgui_examples_msvc2010.sln index e8e0bcad1..b7e6a2522 100644 --- a/examples/imgui_examples_msvc2010.sln +++ b/examples/imgui_examples_msvc2010.sln @@ -9,6 +9,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx11_example", "direct EndProject Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "opengl3_example", "opengl3_example\opengl3_example.vcxproj", "{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}" EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx10_example", "directx10_example\directx10_example.vcxproj", "{345A953E-A004-4648-B442-DC5F9F11068C}" +EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|Win32 = Debug|Win32 @@ -49,6 +51,14 @@ Global {4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Release|Win32.Build.0 = Release|Win32 {4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Release|x64.ActiveCfg = Release|x64 {4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Release|x64.Build.0 = Release|x64 + {345A953E-A004-4648-B442-DC5F9F11068C}.Debug|Win32.ActiveCfg = Debug|Win32 + {345A953E-A004-4648-B442-DC5F9F11068C}.Debug|Win32.Build.0 = Debug|Win32 + {345A953E-A004-4648-B442-DC5F9F11068C}.Debug|x64.ActiveCfg = Debug|x64 + {345A953E-A004-4648-B442-DC5F9F11068C}.Debug|x64.Build.0 = Debug|x64 + {345A953E-A004-4648-B442-DC5F9F11068C}.Release|Win32.ActiveCfg = Release|Win32 + {345A953E-A004-4648-B442-DC5F9F11068C}.Release|Win32.Build.0 = Release|Win32 + {345A953E-A004-4648-B442-DC5F9F11068C}.Release|x64.ActiveCfg = Release|x64 + {345A953E-A004-4648-B442-DC5F9F11068C}.Release|x64.Build.0 = Release|x64 EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE