mirror of
https://github.com/Drezil/imgui.git
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Examples: DirectX12: Add directx12_example
This commit is contained in:
Jefferson Montgomery
parent
ab97b42935
commit
f6181b3428
@ -58,6 +58,10 @@ directx11_example/
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DirectX11 example, Windows only.
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DirectX11 example, Windows only.
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This is quite long and tedious, because: DirectX11.
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This is quite long and tedious, because: DirectX11.
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directx12_example/
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DirectX12 example, Windows only.
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This is quite long and tedious, because: DirectX12.
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ios_example/
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ios_example/
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iOS example.
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iOS example.
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Using Synergy to access keyboard/mouse data from server computer.
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Using Synergy to access keyboard/mouse data from server computer.
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4
examples/directx12_example/build_win32.bat
Normal file
4
examples/directx12_example/build_win32.bat
Normal file
@ -0,0 +1,4 @@
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@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
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mkdir Debug
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cl /nologo /Zi /MD /I ..\.. /I "%WindowsSdkDir%Include\um" /I "%WindowsSdkDir%Include\shared" /I "%DXSDK_DIR%Include" /D UNICODE /D _UNICODE *.cpp ..\..\*.cpp /FeDebug/directx12_example.exe /FoDebug/ /link /LIBPATH:"%DXSDK_DIR%/Lib/x86" d3d12.lib d3dcompiler.lib
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164
examples/directx12_example/directx12_example.vcxproj
Normal file
164
examples/directx12_example/directx12_example.vcxproj
Normal file
@ -0,0 +1,164 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<ProjectGuid>{b4cf9797-519d-4afe-a8f4-5141a6b521d3}</ProjectGuid>
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<RootNamespace>directx12_example</RootNamespace>
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<WindowsTargetPlatformVersion>10.0.10240.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v140</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v140</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v140</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v140</PlatformToolset>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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<IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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<IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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<IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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<IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<WarningLevel>Level4</WarningLevel>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<AdditionalDependencies>d3d12.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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<SubSystem>Console</SubSystem>
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</Link>
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|
</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<WarningLevel>Level4</WarningLevel>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<AdditionalDependencies>d3d12.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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<SubSystem>Console</SubSystem>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level4</WarningLevel>
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<Optimization>MaxSpeed</Optimization>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<AdditionalIncludeDirectories>..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<AdditionalDependencies>d3d12.lib;d3dcompiler.lib;dxgi.lib;imm32.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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|
<SubSystem>Console</SubSystem>
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</Link>
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|
</ItemDefinitionGroup>
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|
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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|
<ClCompile>
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|
<WarningLevel>Level4</WarningLevel>
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|
<Optimization>MaxSpeed</Optimization>
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|
<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<AdditionalIncludeDirectories>..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<AdditionalDependencies>d3d12.lib;d3dcompiler.lib;dxgi.lib;imm32.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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<SubSystem>Console</SubSystem>
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|
</Link>
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|
</ItemDefinitionGroup>
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h" />
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<ClInclude Include="..\..\imgui.h" />
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<ClInclude Include="..\..\imgui_internal.h" />
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<ClInclude Include="imgui_impl_dx12.h" />
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\imgui.cpp" />
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<ClCompile Include="..\..\imgui_demo.cpp" />
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<ClCompile Include="..\..\imgui_draw.cpp" />
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<ClCompile Include="imgui_impl_dx12.cpp" />
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<ClCompile Include="main.cpp" />
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</ItemGroup>
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<ItemGroup>
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<None Include="..\README.txt" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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45
examples/directx12_example/directx12_example.vcxproj.filters
Normal file
45
examples/directx12_example/directx12_example.vcxproj.filters
Normal file
@ -0,0 +1,45 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="imgui">
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<UniqueIdentifier>{fb3d294f-51ec-478e-a627-25831c80fefd}</UniqueIdentifier>
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</Filter>
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<Filter Include="sources">
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<UniqueIdentifier>{4f33ddea-9910-456d-b868-4267eb3c2b19}</UniqueIdentifier>
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|
</Filter>
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|
</ItemGroup>
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\imgui.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="imgui_impl_dx12.h">
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<Filter>sources</Filter>
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</ClInclude>
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<ClInclude Include="..\..\imgui_internal.h">
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<Filter>imgui</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\imgui.cpp">
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<Filter>imgui</Filter>
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</ClCompile>
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<ClCompile Include="main.cpp">
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<Filter>sources</Filter>
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</ClCompile>
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<ClCompile Include="imgui_impl_dx12.cpp">
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<Filter>sources</Filter>
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</ClCompile>
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<ClCompile Include="..\..\imgui_demo.cpp">
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<Filter>imgui</Filter>
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</ClCompile>
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<ClCompile Include="..\..\imgui_draw.cpp">
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<Filter>imgui</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<None Include="..\README.txt" />
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</ItemGroup>
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</Project>
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667
examples/directx12_example/imgui_impl_dx12.cpp
Normal file
667
examples/directx12_example/imgui_impl_dx12.cpp
Normal file
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// ImGui Win32 + DirectX12 binding
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// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
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// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
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// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
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// https://github.com/ocornut/imgui
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#include <imgui.h>
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#include "imgui_impl_dx12.h"
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// DirectX
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#include <d3d12.h>
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#include <d3dcompiler.h>
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struct FrameResources
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{
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ID3D12Resource* IB;
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ID3D12Resource* VB;
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int VertexBufferSize;
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int IndexBufferSize;
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};
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// Data
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static INT64 g_Time = 0;
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static INT64 g_TicksPerSecond = 0;
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static HWND g_hWnd = 0;
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static ID3D12Device* g_pd3dDevice = NULL;
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static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
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static ID3D10Blob* g_pVertexShaderBlob = NULL;
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static ID3D10Blob* g_pPixelShaderBlob = NULL;
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static ID3D12RootSignature* g_pRootSignature = NULL;
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static ID3D12PipelineState* g_pPipelineState = NULL;
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static ID3D12Resource* g_pFontTextureResource = NULL;
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static D3D12_CPU_DESCRIPTOR_HANDLE g_hFontSrvCpuDescHandle = {};
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static D3D12_GPU_DESCRIPTOR_HANDLE g_hFontSrvGpuDescHandle = {};
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static FrameResources* g_pFrameResources = NULL;
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static UINT g_numFramesInFlight = 0;
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static UINT g_frameIndex = UINT_MAX;
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struct VERTEX_CONSTANT_BUFFER
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{
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float mvp[4][4];
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};
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// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
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// If text or lines are blurry when integrating ImGui in your engine:
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// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
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void ImGui_ImplDX12_RenderDrawLists(ImDrawData* draw_data)
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{
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// Create and grow vertex/index buffers if needed
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//
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// NOTE: I'm assuming that this only get's called once per frame! If not,
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// we can't just re-allocate the IB or VB, we'll have to do a proper
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// allocator.
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g_frameIndex = g_frameIndex + 1;
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FrameResources* frameResources = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
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D3D12_HEAP_PROPERTIES props = {};
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props.Type = D3D12_HEAP_TYPE_UPLOAD;
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props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
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props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
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D3D12_RESOURCE_DESC desc = {};
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desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
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desc.Height = 1;
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desc.DepthOrArraySize = 1;
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desc.MipLevels = 1;
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desc.Format = DXGI_FORMAT_UNKNOWN;
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desc.SampleDesc.Count = 1;
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desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
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desc.Flags = D3D12_RESOURCE_FLAG_NONE;
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if (!frameResources->VB || frameResources->VertexBufferSize < draw_data->TotalVtxCount)
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{
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if (frameResources->VB) { frameResources->VB->Release(); frameResources->VB = NULL; }
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frameResources->VertexBufferSize = draw_data->TotalVtxCount + 5000;
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desc.Width = frameResources->VertexBufferSize * sizeof(ImDrawVert);
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HRESULT hr = g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&frameResources->VB));
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assert(SUCCEEDED(hr));
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}
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if (!frameResources->IB || frameResources->IndexBufferSize < draw_data->TotalIdxCount)
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{
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if (frameResources->IB) { frameResources->IB->Release(); frameResources->IB = NULL; }
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frameResources->IndexBufferSize = draw_data->TotalIdxCount + 10000;
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desc.Width = frameResources->IndexBufferSize * sizeof(ImDrawIdx);
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HRESULT hr = g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&frameResources->IB));
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assert(SUCCEEDED(hr));
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}
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// Copy and convert all vertices into a single contiguous buffer
|
||||||
|
D3D12_RANGE range = {};
|
||||||
|
void* vtx_resource = NULL;
|
||||||
|
HRESULT hr = frameResources->VB->Map(0, &range, &vtx_resource);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
void* idx_resource = NULL;
|
||||||
|
hr = frameResources->IB->Map(0, &range, &idx_resource);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource;
|
||||||
|
ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource;
|
||||||
|
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();
|
||||||
|
}
|
||||||
|
frameResources->VB->Unmap(0, &range);
|
||||||
|
frameResources->IB->Unmap(0, &range);
|
||||||
|
|
||||||
|
// Setup orthographic projection matrix into our constant buffer
|
||||||
|
VERTEX_CONSTANT_BUFFER vertexConstantBuffer = {};
|
||||||
|
{
|
||||||
|
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(&vertexConstantBuffer.mvp, mvp, sizeof(mvp));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Setup viewport
|
||||||
|
D3D12_VIEWPORT viewport = {};
|
||||||
|
viewport.Width = ImGui::GetIO().DisplaySize.x;
|
||||||
|
viewport.Height = ImGui::GetIO().DisplaySize.y;
|
||||||
|
viewport.MinDepth = 0.0f;
|
||||||
|
viewport.MaxDepth = 1.0f;
|
||||||
|
viewport.TopLeftX = 0;
|
||||||
|
viewport.TopLeftY = 0;
|
||||||
|
|
||||||
|
// Bind shader and vertex buffers
|
||||||
|
D3D12_VERTEX_BUFFER_VIEW vbv = {};
|
||||||
|
vbv.BufferLocation = frameResources->VB->GetGPUVirtualAddress();
|
||||||
|
vbv.SizeInBytes = frameResources->VertexBufferSize * sizeof(ImDrawVert);
|
||||||
|
vbv.StrideInBytes = sizeof(ImDrawVert);
|
||||||
|
|
||||||
|
D3D12_INDEX_BUFFER_VIEW ibv = {};
|
||||||
|
ibv.BufferLocation = frameResources->IB->GetGPUVirtualAddress();
|
||||||
|
ibv.SizeInBytes = frameResources->IndexBufferSize * sizeof(ImDrawIdx);
|
||||||
|
ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
|
||||||
|
|
||||||
|
FLOAT blendFactor[4] = { 0.f, 0.f, 0.f, 0.f };
|
||||||
|
|
||||||
|
g_pd3dCommandList->SetPipelineState(g_pPipelineState);
|
||||||
|
g_pd3dCommandList->SetGraphicsRootSignature(g_pRootSignature);
|
||||||
|
g_pd3dCommandList->SetGraphicsRoot32BitConstants(0, 16, &vertexConstantBuffer, 0);
|
||||||
|
g_pd3dCommandList->IASetIndexBuffer(&ibv);
|
||||||
|
g_pd3dCommandList->IASetVertexBuffers(0, 1, &vbv);
|
||||||
|
g_pd3dCommandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
|
||||||
|
g_pd3dCommandList->RSSetViewports(1, &viewport);
|
||||||
|
g_pd3dCommandList->OMSetBlendFactor(blendFactor);
|
||||||
|
|
||||||
|
// 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
|
||||||
|
{
|
||||||
|
D3D12_RECT scissorRect = { (LONG)pcmd->ClipRect.x, (LONG)pcmd->ClipRect.y, (LONG)pcmd->ClipRect.z, (LONG)pcmd->ClipRect.w };
|
||||||
|
|
||||||
|
D3D12_GPU_DESCRIPTOR_HANDLE srvHandle = {};
|
||||||
|
srvHandle.ptr = (UINT64) pcmd->TextureId;
|
||||||
|
|
||||||
|
g_pd3dCommandList->SetGraphicsRootDescriptorTable(1, srvHandle);
|
||||||
|
g_pd3dCommandList->RSSetScissorRects(1, &scissorRect);
|
||||||
|
g_pd3dCommandList->DrawIndexedInstanced(pcmd->ElemCount, 1, idx_offset, vtx_offset, 0);
|
||||||
|
}
|
||||||
|
idx_offset += pcmd->ElemCount;
|
||||||
|
}
|
||||||
|
vtx_offset += cmd_list->VtxBuffer.size();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
IMGUI_API LRESULT ImGui_ImplDX12_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_ImplDX12_CreateFontsTexture()
|
||||||
|
{
|
||||||
|
// Build texture atlas
|
||||||
|
ImGuiIO& io = ImGui::GetIO();
|
||||||
|
unsigned char* pixels;
|
||||||
|
int width, height;
|
||||||
|
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
|
||||||
|
|
||||||
|
// Upload texture to graphics system
|
||||||
|
{
|
||||||
|
D3D12_RESOURCE_DESC resourceDesc = {};
|
||||||
|
resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
|
||||||
|
resourceDesc.Alignment = 0;
|
||||||
|
resourceDesc.Width = width;
|
||||||
|
resourceDesc.Height = height;
|
||||||
|
resourceDesc.DepthOrArraySize = 1;
|
||||||
|
resourceDesc.MipLevels = 1;
|
||||||
|
resourceDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
||||||
|
resourceDesc.SampleDesc.Count = 1;
|
||||||
|
resourceDesc.SampleDesc.Quality = 0;
|
||||||
|
resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
|
||||||
|
resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
|
||||||
|
|
||||||
|
D3D12_HEAP_PROPERTIES props = {};
|
||||||
|
props.Type = D3D12_HEAP_TYPE_DEFAULT;
|
||||||
|
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
|
||||||
|
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
|
||||||
|
|
||||||
|
HRESULT hr = g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &resourceDesc,
|
||||||
|
D3D12_RESOURCE_STATE_COPY_DEST, NULL, IID_PPV_ARGS(&g_pFontTextureResource));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
UINT uploadPitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
|
||||||
|
UINT uploadSize = height * uploadPitch;
|
||||||
|
resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
|
||||||
|
resourceDesc.Alignment = 0;
|
||||||
|
resourceDesc.Width = uploadSize;
|
||||||
|
resourceDesc.Height = 1;
|
||||||
|
resourceDesc.DepthOrArraySize = 1;
|
||||||
|
resourceDesc.MipLevels = 1;
|
||||||
|
resourceDesc.Format = DXGI_FORMAT_UNKNOWN;
|
||||||
|
resourceDesc.SampleDesc.Count = 1;
|
||||||
|
resourceDesc.SampleDesc.Quality = 0;
|
||||||
|
resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
|
||||||
|
resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
|
||||||
|
|
||||||
|
props.Type = D3D12_HEAP_TYPE_UPLOAD;
|
||||||
|
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
|
||||||
|
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
|
||||||
|
|
||||||
|
ID3D12Resource* uploadBuffer = NULL;
|
||||||
|
hr = g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &resourceDesc,
|
||||||
|
D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&uploadBuffer));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
void* mapped = NULL;
|
||||||
|
D3D12_RANGE range = { 0, uploadSize };
|
||||||
|
hr = uploadBuffer->Map(0, &range, &mapped);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
for (int y = 0; y < height; ++y)
|
||||||
|
{
|
||||||
|
memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
|
||||||
|
}
|
||||||
|
uploadBuffer->Unmap(0, &range);
|
||||||
|
|
||||||
|
D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
|
||||||
|
srcLocation.pResource = uploadBuffer;
|
||||||
|
srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
|
||||||
|
srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
||||||
|
srcLocation.PlacedFootprint.Footprint.Width = width;
|
||||||
|
srcLocation.PlacedFootprint.Footprint.Height = height;
|
||||||
|
srcLocation.PlacedFootprint.Footprint.Depth = 1;
|
||||||
|
srcLocation.PlacedFootprint.Footprint.RowPitch = uploadPitch;
|
||||||
|
|
||||||
|
D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
|
||||||
|
dstLocation.pResource = g_pFontTextureResource;
|
||||||
|
dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
|
||||||
|
dstLocation.SubresourceIndex = 0;
|
||||||
|
|
||||||
|
D3D12_RESOURCE_BARRIER barrier = {};
|
||||||
|
barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
|
||||||
|
barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
|
||||||
|
barrier.Transition.pResource = g_pFontTextureResource;
|
||||||
|
barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
|
||||||
|
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
|
||||||
|
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
|
||||||
|
|
||||||
|
ID3D12Fence* fence = NULL;
|
||||||
|
hr = g_pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&fence));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
HANDLE event = CreateEvent(0, 0, 0, 0);
|
||||||
|
assert(event != NULL);
|
||||||
|
|
||||||
|
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
|
||||||
|
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
|
||||||
|
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
|
||||||
|
queueDesc.NodeMask = 1;
|
||||||
|
|
||||||
|
ID3D12CommandQueue* cmdQueue = NULL;
|
||||||
|
hr = g_pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
ID3D12CommandAllocator* cmdAlloc = NULL;
|
||||||
|
hr = g_pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
ID3D12GraphicsCommandList* cmdList = NULL;
|
||||||
|
hr = g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, cmdAlloc, NULL, IID_PPV_ARGS(&cmdList));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
cmdList->CopyTextureRegion(&dstLocation, 0, 0, 0, &srcLocation, NULL);
|
||||||
|
cmdList->ResourceBarrier(1, &barrier);
|
||||||
|
|
||||||
|
hr = cmdList->Close();
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*) &cmdList);
|
||||||
|
hr = cmdQueue->Signal(fence, 1);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
fence->SetEventOnCompletion(1, event);
|
||||||
|
WaitForSingleObject(event, INFINITE);
|
||||||
|
|
||||||
|
cmdList->Release();
|
||||||
|
cmdAlloc->Release();
|
||||||
|
cmdQueue->Release();
|
||||||
|
CloseHandle(event);
|
||||||
|
fence->Release();
|
||||||
|
uploadBuffer->Release();
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create texture view
|
||||||
|
g_pd3dDevice->CreateShaderResourceView(g_pFontTextureResource, NULL, g_hFontSrvCpuDescHandle);
|
||||||
|
|
||||||
|
// Store our identifier
|
||||||
|
static_assert(sizeof(void*) >= sizeof(g_hFontSrvGpuDescHandle.ptr), "Can't pack descriptor handle into TexID");
|
||||||
|
ImGui::GetIO().Fonts->TexID = (void*) g_hFontSrvGpuDescHandle.ptr;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool ImGui_ImplDX12_CreateDeviceObjects()
|
||||||
|
{
|
||||||
|
if (!g_pd3dDevice)
|
||||||
|
return false;
|
||||||
|
if (g_pPipelineState)
|
||||||
|
ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||||
|
|
||||||
|
// Create the root signature
|
||||||
|
{
|
||||||
|
D3D12_DESCRIPTOR_RANGE descRange = {};
|
||||||
|
descRange.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
|
||||||
|
descRange.NumDescriptors = 1;
|
||||||
|
descRange.BaseShaderRegister = 0;
|
||||||
|
descRange.RegisterSpace = 0;
|
||||||
|
descRange.OffsetInDescriptorsFromTableStart = 0;
|
||||||
|
|
||||||
|
D3D12_ROOT_PARAMETER param[2] = {};
|
||||||
|
|
||||||
|
param[0].ParameterType = D3D12_ROOT_PARAMETER_TYPE_32BIT_CONSTANTS;
|
||||||
|
param[0].Constants.ShaderRegister = 0;
|
||||||
|
param[0].Constants.RegisterSpace = 0;
|
||||||
|
param[0].Constants.Num32BitValues = 16;
|
||||||
|
param[0].ShaderVisibility = D3D12_SHADER_VISIBILITY_VERTEX;
|
||||||
|
|
||||||
|
param[1].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
|
||||||
|
param[1].DescriptorTable.NumDescriptorRanges = 1;
|
||||||
|
param[1].DescriptorTable.pDescriptorRanges = &descRange;
|
||||||
|
param[1].ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
|
||||||
|
|
||||||
|
D3D12_STATIC_SAMPLER_DESC staticSampler = {};
|
||||||
|
staticSampler.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
|
||||||
|
staticSampler.AddressU = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
|
||||||
|
staticSampler.AddressV = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
|
||||||
|
staticSampler.AddressW = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
|
||||||
|
staticSampler.MipLODBias = 0.f;
|
||||||
|
staticSampler.MaxAnisotropy = 0;
|
||||||
|
staticSampler.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
|
||||||
|
staticSampler.BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
|
||||||
|
staticSampler.MinLOD = 0.f;
|
||||||
|
staticSampler.MaxLOD = 0.f;
|
||||||
|
staticSampler.ShaderRegister = 0;
|
||||||
|
staticSampler.RegisterSpace = 0;
|
||||||
|
staticSampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
|
||||||
|
|
||||||
|
D3D12_ROOT_SIGNATURE_DESC desc = {};
|
||||||
|
desc.NumParameters = _countof(param);
|
||||||
|
desc.pParameters = param;
|
||||||
|
desc.NumStaticSamplers = 1;
|
||||||
|
desc.pStaticSamplers = &staticSampler;
|
||||||
|
desc.Flags =
|
||||||
|
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
|
||||||
|
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
|
||||||
|
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
|
||||||
|
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
|
||||||
|
|
||||||
|
ID3DBlob* blob = NULL;
|
||||||
|
if (D3D12SerializeRootSignature(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, NULL) != S_OK)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
g_pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&g_pRootSignature));
|
||||||
|
blob->Release();
|
||||||
|
}
|
||||||
|
// Create the pipeline state object
|
||||||
|
{
|
||||||
|
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;\
|
||||||
|
}";
|
||||||
|
|
||||||
|
static const char* pixelShader =
|
||||||
|
"struct PS_INPUT\
|
||||||
|
{\
|
||||||
|
float4 pos : SV_POSITION;\
|
||||||
|
float4 col : COLOR0;\
|
||||||
|
float2 uv : TEXCOORD0;\
|
||||||
|
};\
|
||||||
|
SamplerState sampler0 : register(s0);\
|
||||||
|
Texture2D texture0 : register(t0);\
|
||||||
|
\
|
||||||
|
float4 main(PS_INPUT input) : SV_Target\
|
||||||
|
{\
|
||||||
|
float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
|
||||||
|
return out_col; \
|
||||||
|
}";
|
||||||
|
|
||||||
|
D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_5_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;
|
||||||
|
|
||||||
|
D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_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;
|
||||||
|
|
||||||
|
D3D12_INPUT_ELEMENT_DESC localLayout[] = {
|
||||||
|
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
|
||||||
|
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
|
||||||
|
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (size_t)(&((ImDrawVert*)0)->col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
D3D12_GRAPHICS_PIPELINE_STATE_DESC desc = {};
|
||||||
|
desc.NodeMask = 1;
|
||||||
|
desc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
|
||||||
|
desc.InputLayout = { localLayout, _countof(localLayout) };
|
||||||
|
desc.pRootSignature = g_pRootSignature;
|
||||||
|
desc.VS = { g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize() };
|
||||||
|
desc.PS = { g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize() };
|
||||||
|
desc.SampleMask = UINT_MAX;
|
||||||
|
desc.NumRenderTargets = 1;
|
||||||
|
desc.RTVFormats[0] = DXGI_FORMAT_B8G8R8A8_UNORM;
|
||||||
|
desc.SampleDesc.Count = 1;
|
||||||
|
desc.Flags = D3D12_PIPELINE_STATE_FLAG_NONE;
|
||||||
|
|
||||||
|
desc.RasterizerState.FillMode = D3D12_FILL_MODE_SOLID;
|
||||||
|
desc.RasterizerState.CullMode = D3D12_CULL_MODE_NONE;
|
||||||
|
desc.RasterizerState.FrontCounterClockwise = FALSE;
|
||||||
|
desc.RasterizerState.DepthBias = D3D12_DEFAULT_DEPTH_BIAS;
|
||||||
|
desc.RasterizerState.DepthBiasClamp = D3D12_DEFAULT_DEPTH_BIAS_CLAMP;
|
||||||
|
desc.RasterizerState.SlopeScaledDepthBias = D3D12_DEFAULT_SLOPE_SCALED_DEPTH_BIAS;
|
||||||
|
desc.RasterizerState.DepthClipEnable = TRUE;
|
||||||
|
desc.RasterizerState.MultisampleEnable = FALSE;
|
||||||
|
desc.RasterizerState.AntialiasedLineEnable = FALSE;
|
||||||
|
desc.RasterizerState.ForcedSampleCount = 0;
|
||||||
|
desc.RasterizerState.ConservativeRaster = D3D12_CONSERVATIVE_RASTERIZATION_MODE_OFF;
|
||||||
|
|
||||||
|
desc.BlendState.AlphaToCoverageEnable = FALSE;
|
||||||
|
desc.BlendState.RenderTarget[0].BlendEnable = TRUE;
|
||||||
|
desc.BlendState.RenderTarget[0].SrcBlend = D3D12_BLEND_SRC_ALPHA;
|
||||||
|
desc.BlendState.RenderTarget[0].DestBlend = D3D12_BLEND_INV_SRC_ALPHA;
|
||||||
|
desc.BlendState.RenderTarget[0].BlendOp = D3D12_BLEND_OP_ADD;
|
||||||
|
desc.BlendState.RenderTarget[0].SrcBlendAlpha = D3D12_BLEND_INV_SRC_ALPHA;
|
||||||
|
desc.BlendState.RenderTarget[0].DestBlendAlpha = D3D12_BLEND_ZERO;
|
||||||
|
desc.BlendState.RenderTarget[0].BlendOpAlpha = D3D12_BLEND_OP_ADD;
|
||||||
|
desc.BlendState.RenderTarget[0].RenderTargetWriteMask = D3D12_COLOR_WRITE_ENABLE_ALL;
|
||||||
|
|
||||||
|
desc.DepthStencilState.DepthEnable = FALSE;
|
||||||
|
desc.DepthStencilState.StencilEnable = FALSE;
|
||||||
|
|
||||||
|
HRESULT hr = g_pd3dDevice->CreateGraphicsPipelineState(&desc, IID_PPV_ARGS(&g_pPipelineState));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
}
|
||||||
|
|
||||||
|
ImGui_ImplDX12_CreateFontsTexture();
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ImGui_ImplDX12_InvalidateDeviceObjects()
|
||||||
|
{
|
||||||
|
if (!g_pd3dDevice)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; }
|
||||||
|
if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; }
|
||||||
|
if (g_pRootSignature) { g_pRootSignature->Release(); g_pRootSignature = NULL; }
|
||||||
|
if (g_pPipelineState) { g_pPipelineState->Release(); g_pPipelineState = NULL; }
|
||||||
|
if (g_pFontTextureResource) { g_pFontTextureResource->Release(); g_pFontTextureResource = NULL; }
|
||||||
|
for (UINT i = 0; i < g_numFramesInFlight; ++i)
|
||||||
|
{
|
||||||
|
if (g_pFrameResources[i].IB) { g_pFrameResources[i].IB->Release(); g_pFrameResources[i].IB = NULL; }
|
||||||
|
if (g_pFrameResources[i].VB) { g_pFrameResources[i].VB->Release(); g_pFrameResources[i].VB = NULL; }
|
||||||
|
}
|
||||||
|
ImGui::GetIO().Fonts->TexID = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool ImGui_ImplDX12_Init(void* hwnd, int numFramesInFlight,
|
||||||
|
ID3D12Device* device, ID3D12GraphicsCommandList* cmdList,
|
||||||
|
D3D12_CPU_DESCRIPTOR_HANDLE fontSrvCpuDescHandle,
|
||||||
|
D3D12_GPU_DESCRIPTOR_HANDLE fontSrvGpuDescHandle)
|
||||||
|
{
|
||||||
|
g_hWnd = (HWND)hwnd;
|
||||||
|
g_pd3dDevice = device;
|
||||||
|
g_pd3dCommandList = cmdList;
|
||||||
|
g_hFontSrvCpuDescHandle = fontSrvCpuDescHandle;
|
||||||
|
g_hFontSrvGpuDescHandle = fontSrvGpuDescHandle;
|
||||||
|
g_pFrameResources = new FrameResources [numFramesInFlight];
|
||||||
|
g_numFramesInFlight = numFramesInFlight;
|
||||||
|
g_frameIndex = UINT_MAX;
|
||||||
|
|
||||||
|
for (int i = 0; i < numFramesInFlight; ++i)
|
||||||
|
{
|
||||||
|
g_pFrameResources[i].IB = NULL;
|
||||||
|
g_pFrameResources[i].VB = NULL;
|
||||||
|
g_pFrameResources[i].VertexBufferSize = 5000;
|
||||||
|
g_pFrameResources[i].IndexBufferSize = 10000;
|
||||||
|
}
|
||||||
|
|
||||||
|
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_ImplDX12_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_ImplDX12_Shutdown()
|
||||||
|
{
|
||||||
|
ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||||
|
ImGui::Shutdown();
|
||||||
|
delete[] g_pFrameResources;
|
||||||
|
g_pd3dDevice = NULL;
|
||||||
|
g_hWnd = (HWND)0;
|
||||||
|
g_pd3dCommandList = NULL;
|
||||||
|
g_hFontSrvCpuDescHandle.ptr = 0;
|
||||||
|
g_hFontSrvGpuDescHandle.ptr = 0;
|
||||||
|
g_pFrameResources = NULL;
|
||||||
|
g_numFramesInFlight = 0;
|
||||||
|
g_frameIndex = UINT_MAX;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ImGui_ImplDX12_NewFrame()
|
||||||
|
{
|
||||||
|
if (!g_pPipelineState)
|
||||||
|
ImGui_ImplDX12_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();
|
||||||
|
}
|
||||||
34
examples/directx12_example/imgui_impl_dx12.h
Normal file
34
examples/directx12_example/imgui_impl_dx12.h
Normal file
@ -0,0 +1,34 @@
|
|||||||
|
// ImGui Win32 + DirectX12 binding
|
||||||
|
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
|
||||||
|
// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
|
||||||
|
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
|
||||||
|
// https://github.com/ocornut/imgui
|
||||||
|
|
||||||
|
#include <d3d12.h>
|
||||||
|
|
||||||
|
// cmdList is the command list that the implementation will use to render the
|
||||||
|
// GUI.
|
||||||
|
//
|
||||||
|
// Before calling ImGui::Render(), caller must prepare cmdList by resetting it
|
||||||
|
// and setting the appropriate render target and descriptor heap that contains
|
||||||
|
// fontSrv*puDescHandle.
|
||||||
|
//
|
||||||
|
// fontSrvCpuDescHandle and fontSrvGpuDescHandle are handles to a single SRV
|
||||||
|
// descriptor to use for the internal font texture.
|
||||||
|
IMGUI_API bool ImGui_ImplDX12_Init(void* hwnd, int numFramesInFlight,
|
||||||
|
ID3D12Device* device, ID3D12GraphicsCommandList* cmdList,
|
||||||
|
D3D12_CPU_DESCRIPTOR_HANDLE fontSrvCpuDescHandle,
|
||||||
|
D3D12_GPU_DESCRIPTOR_HANDLE fontSrvGpuDescHandle);
|
||||||
|
IMGUI_API void ImGui_ImplDX12_Shutdown();
|
||||||
|
IMGUI_API void ImGui_ImplDX12_NewFrame();
|
||||||
|
|
||||||
|
// Use if you want to reset your rendering device without losing ImGui state.
|
||||||
|
IMGUI_API void ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||||
|
IMGUI_API bool ImGui_ImplDX12_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 <windows.h> types. You can copy the extern declaration in your code.
|
||||||
|
/*
|
||||||
|
IMGUI_API LRESULT ImGui_ImplDX12_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||||
|
*/
|
||||||
418
examples/directx12_example/main.cpp
Normal file
418
examples/directx12_example/main.cpp
Normal file
@ -0,0 +1,418 @@
|
|||||||
|
// ImGui - standalone example application for DirectX 11
|
||||||
|
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <imgui.h>
|
||||||
|
#include "imgui_impl_dx12.h"
|
||||||
|
#include <d3d12.h>
|
||||||
|
#include <dxgi1_4.h>
|
||||||
|
#include <tchar.h>
|
||||||
|
|
||||||
|
struct FrameContext
|
||||||
|
{
|
||||||
|
ID3D12CommandAllocator* CommandAllocator;
|
||||||
|
UINT64 FenceValue;
|
||||||
|
bool FenceSignalled;
|
||||||
|
};
|
||||||
|
|
||||||
|
// Data
|
||||||
|
static int const NUM_FRAMES_IN_FLIGHT = 3;
|
||||||
|
static FrameContext g_frameContext[NUM_FRAMES_IN_FLIGHT] = {};
|
||||||
|
static UINT g_frameIndex = 0;
|
||||||
|
|
||||||
|
static int const NUM_BACK_BUFFERS = 3;
|
||||||
|
static IDXGIFactory4* g_pdxgiFactory = NULL;
|
||||||
|
static ID3D12Device* g_pd3dDevice = NULL;
|
||||||
|
static ID3D12DescriptorHeap* g_pd3dRtvDescHeap = NULL;
|
||||||
|
static ID3D12DescriptorHeap* g_pd3dSrvDescHeap = NULL;
|
||||||
|
static ID3D12CommandQueue* g_pd3dCommandQueue = NULL;
|
||||||
|
static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
|
||||||
|
static ID3D12Fence* g_fence = NULL;
|
||||||
|
static HANDLE g_fenceEvent = NULL;
|
||||||
|
static UINT64 g_fenceLastSignalledValue = 0;
|
||||||
|
static IDXGISwapChain3* g_pSwapChain = NULL;
|
||||||
|
static HANDLE g_hSwapChainWaitableObject = NULL;
|
||||||
|
static ID3D12Resource* g_mainRenderTargetResource[NUM_BACK_BUFFERS] = {};
|
||||||
|
static D3D12_CPU_DESCRIPTOR_HANDLE g_mainRenderTargetDescriptor[NUM_BACK_BUFFERS] = {};
|
||||||
|
|
||||||
|
static void WaitForLastSubmittedFrame()
|
||||||
|
{
|
||||||
|
FrameContext* frameCtxt = &g_frameContext[g_frameIndex % NUM_FRAMES_IN_FLIGHT];
|
||||||
|
|
||||||
|
UINT64 fenceValue = frameCtxt->FenceValue;
|
||||||
|
if (fenceValue == 0) { // means no fence was signalled
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
frameCtxt->FenceValue = 0;
|
||||||
|
if (g_fence->GetCompletedValue() >= fenceValue) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
HRESULT hr = g_fence->SetEventOnCompletion(fenceValue, g_fenceEvent);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
WaitForSingleObject(g_fenceEvent, INFINITE);
|
||||||
|
}
|
||||||
|
|
||||||
|
static FrameContext* WaitForNextFrameResources()
|
||||||
|
{
|
||||||
|
UINT nextFrameIndex = g_frameIndex + 1;
|
||||||
|
g_frameIndex = nextFrameIndex;
|
||||||
|
|
||||||
|
HANDLE waitableObjects[] = {
|
||||||
|
g_hSwapChainWaitableObject,
|
||||||
|
NULL,
|
||||||
|
};
|
||||||
|
DWORD numWaitableObjects = 1;
|
||||||
|
|
||||||
|
FrameContext* frameCtxt = &g_frameContext[nextFrameIndex % NUM_FRAMES_IN_FLIGHT];
|
||||||
|
UINT64 fenceValue = frameCtxt->FenceValue;
|
||||||
|
if (fenceValue != 0) { // means no fence was signalled
|
||||||
|
frameCtxt->FenceValue = 0;
|
||||||
|
|
||||||
|
HRESULT hr = g_fence->SetEventOnCompletion(fenceValue, g_fenceEvent);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
waitableObjects[1] = g_fenceEvent;
|
||||||
|
numWaitableObjects = 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
HRESULT hr = WaitForMultipleObjects(numWaitableObjects, waitableObjects, TRUE, INFINITE);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
return frameCtxt;
|
||||||
|
}
|
||||||
|
|
||||||
|
void CreateRenderTarget(HWND hWnd, int width, int height)
|
||||||
|
{
|
||||||
|
DXGI_SWAP_CHAIN_DESC1 desc = {};
|
||||||
|
desc.Width = width;
|
||||||
|
desc.Height = height;
|
||||||
|
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
|
||||||
|
desc.Stereo = FALSE;
|
||||||
|
desc.SampleDesc.Count = 1;
|
||||||
|
desc.SampleDesc.Quality = 0;
|
||||||
|
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
|
||||||
|
desc.BufferCount = NUM_BACK_BUFFERS;
|
||||||
|
desc.Scaling = DXGI_SCALING_STRETCH;
|
||||||
|
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
|
||||||
|
desc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
|
||||||
|
desc.Flags = DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT;
|
||||||
|
|
||||||
|
IDXGISwapChain1* swapChain1 = NULL;
|
||||||
|
HRESULT hr = g_pdxgiFactory->CreateSwapChainForHwnd(g_pd3dCommandQueue, hWnd, &desc, NULL, NULL, &swapChain1);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
hr = swapChain1->QueryInterface(IID_PPV_ARGS(&g_pSwapChain));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
swapChain1->Release();
|
||||||
|
|
||||||
|
hr = g_pSwapChain->SetMaximumFrameLatency(NUM_BACK_BUFFERS);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
g_hSwapChainWaitableObject = g_pSwapChain->GetFrameLatencyWaitableObject();
|
||||||
|
assert(g_hSwapChainWaitableObject != NULL);
|
||||||
|
|
||||||
|
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i)
|
||||||
|
{
|
||||||
|
hr = g_pSwapChain->GetBuffer(i, IID_PPV_ARGS(&g_mainRenderTargetResource[i]));
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
g_pd3dDevice->CreateRenderTargetView(g_mainRenderTargetResource[i], NULL, g_mainRenderTargetDescriptor[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void CleanupRenderTarget()
|
||||||
|
{
|
||||||
|
WaitForLastSubmittedFrame();
|
||||||
|
|
||||||
|
if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = NULL; }
|
||||||
|
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i)
|
||||||
|
{
|
||||||
|
if (g_mainRenderTargetResource[i]) { g_mainRenderTargetResource[i]->Release(); g_mainRenderTargetResource[i] = NULL; }
|
||||||
|
}
|
||||||
|
if (g_hSwapChainWaitableObject != NULL) { CloseHandle(g_hSwapChainWaitableObject); }
|
||||||
|
}
|
||||||
|
|
||||||
|
HRESULT CreateDeviceD3D(HWND hWnd)
|
||||||
|
{
|
||||||
|
(void) hWnd;
|
||||||
|
|
||||||
|
#ifdef _DEBUG
|
||||||
|
{
|
||||||
|
ID3D12Debug* debugController = NULL;
|
||||||
|
if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&debugController))))
|
||||||
|
{
|
||||||
|
debugController->EnableDebugLayer();
|
||||||
|
debugController->Release();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if (CreateDXGIFactory1(IID_PPV_ARGS(&g_pdxgiFactory)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
|
||||||
|
IDXGIAdapter1* adapter = NULL;
|
||||||
|
for (UINT adapterIndex = 0; DXGI_ERROR_NOT_FOUND != g_pdxgiFactory->EnumAdapters1(adapterIndex, &adapter); ++adapterIndex)
|
||||||
|
{
|
||||||
|
DXGI_ADAPTER_DESC1 desc = {};
|
||||||
|
adapter->GetDesc1(&desc);
|
||||||
|
|
||||||
|
if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE)
|
||||||
|
{
|
||||||
|
adapter->Release();
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (FAILED(D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_11_0, _uuidof(ID3D12Device), NULL)))
|
||||||
|
{
|
||||||
|
adapter->Release();
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
HRESULT hr = D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_11_0, IID_PPV_ARGS(&g_pd3dDevice));
|
||||||
|
|
||||||
|
if (adapter != NULL)
|
||||||
|
{
|
||||||
|
adapter->Release();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (FAILED(hr))
|
||||||
|
return hr;
|
||||||
|
|
||||||
|
{
|
||||||
|
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
|
||||||
|
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
|
||||||
|
desc.NumDescriptors = NUM_BACK_BUFFERS;
|
||||||
|
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
|
||||||
|
desc.NodeMask = 1;
|
||||||
|
if (g_pd3dDevice->CreateDescriptorHeap(&desc, IID_PPV_ARGS(&g_pd3dRtvDescHeap)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
|
||||||
|
SIZE_T rtvDescriptorSize = g_pd3dDevice->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
|
||||||
|
D3D12_CPU_DESCRIPTOR_HANDLE rtvHandle = g_pd3dRtvDescHeap->GetCPUDescriptorHandleForHeapStart();
|
||||||
|
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i) {
|
||||||
|
g_mainRenderTargetDescriptor[i] = rtvHandle;
|
||||||
|
rtvHandle.ptr += rtvDescriptorSize;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
|
||||||
|
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
|
||||||
|
desc.NumDescriptors = 1;
|
||||||
|
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
|
||||||
|
if (g_pd3dDevice->CreateDescriptorHeap(&desc, IID_PPV_ARGS(&g_pd3dSrvDescHeap)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
D3D12_COMMAND_QUEUE_DESC desc = {};
|
||||||
|
desc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
|
||||||
|
desc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
|
||||||
|
desc.NodeMask = 1;
|
||||||
|
if (g_pd3dDevice->CreateCommandQueue(&desc, IID_PPV_ARGS(&g_pd3dCommandQueue)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; ++i)
|
||||||
|
{
|
||||||
|
if (g_pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&g_frameContext[i].CommandAllocator)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, g_frameContext[0].CommandAllocator, NULL, IID_PPV_ARGS(&g_pd3dCommandList)) != S_OK ||
|
||||||
|
g_pd3dCommandList->Close() != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
|
||||||
|
if (g_pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&g_fence)) != S_OK)
|
||||||
|
return E_FAIL;
|
||||||
|
|
||||||
|
g_fenceEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
||||||
|
if (g_fenceEvent == NULL)
|
||||||
|
return E_FAIL;
|
||||||
|
|
||||||
|
return S_OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
void CleanupDeviceD3D()
|
||||||
|
{
|
||||||
|
CleanupRenderTarget();
|
||||||
|
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; ++i)
|
||||||
|
{
|
||||||
|
if (g_frameContext[i].CommandAllocator) { g_frameContext[i].CommandAllocator->Release(); g_frameContext[i].CommandAllocator = NULL; }
|
||||||
|
}
|
||||||
|
if (g_pd3dCommandQueue) { g_pd3dCommandQueue->Release(); g_pd3dCommandQueue = NULL; }
|
||||||
|
if (g_pd3dCommandList) { g_pd3dCommandList->Release(); g_pd3dCommandList = NULL; }
|
||||||
|
if (g_pd3dRtvDescHeap) { g_pd3dRtvDescHeap->Release(); g_pd3dRtvDescHeap = NULL; }
|
||||||
|
if (g_pd3dSrvDescHeap) { g_pd3dSrvDescHeap->Release(); g_pd3dSrvDescHeap = NULL; }
|
||||||
|
if (g_fence) { g_fence->Release(); g_fence = NULL; }
|
||||||
|
if (g_fenceEvent) { CloseHandle(g_fenceEvent); g_fenceEvent = NULL; }
|
||||||
|
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = NULL; }
|
||||||
|
if (g_pdxgiFactory) { g_pdxgiFactory->Release(); g_pdxgiFactory = NULL; }
|
||||||
|
}
|
||||||
|
|
||||||
|
extern LRESULT ImGui_ImplDX12_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||||
|
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
||||||
|
{
|
||||||
|
if (ImGui_ImplDX12_WndProcHandler(hWnd, msg, wParam, lParam))
|
||||||
|
return true;
|
||||||
|
|
||||||
|
switch (msg)
|
||||||
|
{
|
||||||
|
case WM_SIZE:
|
||||||
|
if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED)
|
||||||
|
{
|
||||||
|
ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||||
|
CleanupRenderTarget();
|
||||||
|
CreateRenderTarget(hWnd, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam));
|
||||||
|
ImGui_ImplDX12_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 DirectX12 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_ImplDX12_Init(hwnd, NUM_FRAMES_IN_FLIGHT, g_pd3dDevice, g_pd3dCommandList,
|
||||||
|
g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(),
|
||||||
|
g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart());
|
||||||
|
|
||||||
|
// Load Fonts
|
||||||
|
// (there is a default font, this is only if you want to change it. 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());
|
||||||
|
|
||||||
|
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;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Wait for frame resources to be available
|
||||||
|
|
||||||
|
ImGui_ImplDX12_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
|
||||||
|
FrameContext* frameCtxt = WaitForNextFrameResources();
|
||||||
|
UINT backBufferIdx = g_pSwapChain->GetCurrentBackBufferIndex();
|
||||||
|
|
||||||
|
HRESULT hr = frameCtxt->CommandAllocator->Reset();
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
hr = g_pd3dCommandList->Reset(frameCtxt->CommandAllocator, NULL);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
D3D12_RESOURCE_BARRIER barrier = {};
|
||||||
|
barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
|
||||||
|
barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
|
||||||
|
barrier.Transition.pResource = g_mainRenderTargetResource[backBufferIdx];
|
||||||
|
barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
|
||||||
|
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_PRESENT;
|
||||||
|
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_RENDER_TARGET;
|
||||||
|
g_pd3dCommandList->ResourceBarrier(1, &barrier);
|
||||||
|
|
||||||
|
g_pd3dCommandList->ClearRenderTargetView(g_mainRenderTargetDescriptor[backBufferIdx], (float*)&clear_col, 0, NULL);
|
||||||
|
g_pd3dCommandList->OMSetRenderTargets(1, &g_mainRenderTargetDescriptor[backBufferIdx], FALSE, NULL);
|
||||||
|
g_pd3dCommandList->SetDescriptorHeaps(1, &g_pd3dSrvDescHeap);
|
||||||
|
ImGui::Render();
|
||||||
|
|
||||||
|
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_RENDER_TARGET;
|
||||||
|
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PRESENT;
|
||||||
|
g_pd3dCommandList->ResourceBarrier(1, &barrier);
|
||||||
|
|
||||||
|
hr = g_pd3dCommandList->Close();
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
g_pd3dCommandQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*) &g_pd3dCommandList);
|
||||||
|
|
||||||
|
hr = g_pSwapChain->Present(1, 0);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
|
||||||
|
auto fenceValue = g_fenceLastSignalledValue + 1;
|
||||||
|
hr = g_pd3dCommandQueue->Signal(g_fence, fenceValue);
|
||||||
|
assert(SUCCEEDED(hr));
|
||||||
|
g_fenceLastSignalledValue = fenceValue;
|
||||||
|
frameCtxt->FenceValue = fenceValue;
|
||||||
|
}
|
||||||
|
|
||||||
|
ImGui_ImplDX12_Shutdown();
|
||||||
|
CleanupDeviceD3D();
|
||||||
|
UnregisterClass(_T("ImGui Example"), wc.hInstance);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
@ -7,6 +7,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx9_example", "directx
|
|||||||
EndProject
|
EndProject
|
||||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx11_example", "directx11_example\directx11_example.vcxproj", "{9F316E83-5AE5-4939-A723-305A94F48005}"
|
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx11_example", "directx11_example\directx11_example.vcxproj", "{9F316E83-5AE5-4939-A723-305A94F48005}"
|
||||||
EndProject
|
EndProject
|
||||||
|
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx12_example", "directx12_example\directx12_example.vcxproj", "{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}"
|
||||||
|
EndProject
|
||||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "opengl3_example", "opengl3_example\opengl3_example.vcxproj", "{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}"
|
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "opengl3_example", "opengl3_example\opengl3_example.vcxproj", "{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}"
|
||||||
EndProject
|
EndProject
|
||||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx10_example", "directx10_example\directx10_example.vcxproj", "{345A953E-A004-4648-B442-DC5F9F11068C}"
|
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "directx10_example", "directx10_example\directx10_example.vcxproj", "{345A953E-A004-4648-B442-DC5F9F11068C}"
|
||||||
@ -43,6 +45,14 @@ Global
|
|||||||
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|Win32.Build.0 = Release|Win32
|
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|Win32.Build.0 = Release|Win32
|
||||||
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|x64.ActiveCfg = Release|x64
|
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|x64.ActiveCfg = Release|x64
|
||||||
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|x64.Build.0 = Release|x64
|
{9F316E83-5AE5-4939-A723-305A94F48005}.Release|x64.Build.0 = Release|x64
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Debug|Win32.ActiveCfg = Debug|Win32
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Debug|Win32.Build.0 = Debug|Win32
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Debug|x64.ActiveCfg = Debug|x64
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Debug|x64.Build.0 = Debug|x64
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Release|Win32.ActiveCfg = Release|Win32
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Release|Win32.Build.0 = Release|Win32
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Release|x64.ActiveCfg = Release|x64
|
||||||
|
{B4CF9797-519D-4AFE-A8F4-5141A6B521D3}.Release|x64.Build.0 = Release|x64
|
||||||
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|Win32.ActiveCfg = Debug|Win32
|
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|Win32.ActiveCfg = Debug|Win32
|
||||||
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|Win32.Build.0 = Debug|Win32
|
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|Win32.Build.0 = Debug|Win32
|
||||||
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|x64.ActiveCfg = Debug|x64
|
{4A1FB5EA-22F5-42A8-AB92-1D2DF5D47FB9}.Debug|x64.ActiveCfg = Debug|x64
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user