mirror of
https://github.com/ncblakely/GiantsTools
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351 lines
10 KiB
C++
351 lines
10 KiB
C++
//--------------------------------------------------------------------------------------
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// File: DebugEffect.cpp
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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//--------------------------------------------------------------------------------------
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#include "pch.h"
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#include "EffectCommon.h"
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using namespace DirectX;
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namespace
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{
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// Constant buffer layout. Must match the shader!
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struct DebugEffectConstants
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{
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XMVECTOR ambientDownAndAlpha;
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XMVECTOR ambientRange;
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XMMATRIX world;
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XMVECTOR worldInverseTranspose[3];
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XMMATRIX worldViewProj;
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};
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static_assert((sizeof(DebugEffectConstants) % 16) == 0, "CB size not padded correctly");
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// Traits type describes our characteristics to the EffectBase template.
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struct DebugEffectTraits
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{
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using ConstantBufferType = DebugEffectConstants;
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static constexpr int VertexShaderCount = 4;
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static constexpr int PixelShaderCount = 4;
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static constexpr int ShaderPermutationCount = 16;
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};
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}
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// Internal DebugEffect implementation class.
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class DebugEffect::Impl : public EffectBase<DebugEffectTraits>
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{
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public:
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Impl(_In_ ID3D11Device* device);
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bool vertexColorEnabled;
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bool biasedVertexNormals;
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DebugEffect::Mode debugMode;
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int GetCurrentShaderPermutation() const noexcept;
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void Apply(_In_ ID3D11DeviceContext* deviceContext);
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};
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// Include the precompiled shader code.
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namespace
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{
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#if defined(_XBOX_ONE) && defined(_TITLE)
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#include "Shaders/Compiled/XboxOneDebugEffect_VSDebug.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_VSDebugVc.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_VSDebugBn.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_VSDebugVcBn.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_PSHemiAmbient.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_PSRGBNormals.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_PSRGBTangents.inc"
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#include "Shaders/Compiled/XboxOneDebugEffect_PSRGBBiTangents.inc"
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#else
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#include "Shaders/Compiled/DebugEffect_VSDebug.inc"
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#include "Shaders/Compiled/DebugEffect_VSDebugVc.inc"
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#include "Shaders/Compiled/DebugEffect_VSDebugBn.inc"
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#include "Shaders/Compiled/DebugEffect_VSDebugVcBn.inc"
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#include "Shaders/Compiled/DebugEffect_PSHemiAmbient.inc"
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#include "Shaders/Compiled/DebugEffect_PSRGBNormals.inc"
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#include "Shaders/Compiled/DebugEffect_PSRGBTangents.inc"
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#include "Shaders/Compiled/DebugEffect_PSRGBBiTangents.inc"
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#endif
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}
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template<>
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const ShaderBytecode EffectBase<DebugEffectTraits>::VertexShaderBytecode[] =
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{
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{ DebugEffect_VSDebug, sizeof(DebugEffect_VSDebug) },
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{ DebugEffect_VSDebugVc, sizeof(DebugEffect_VSDebugVc) },
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{ DebugEffect_VSDebugBn, sizeof(DebugEffect_VSDebugBn) },
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{ DebugEffect_VSDebugVcBn, sizeof(DebugEffect_VSDebugVcBn) },
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};
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template<>
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const int EffectBase<DebugEffectTraits>::VertexShaderIndices[] =
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{
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0, // default
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0, // normals
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0, // tangents
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0, // bitangents
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1, // vertex color + default
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1, // vertex color + normals
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1, // vertex color + tangents
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1, // vertex color + bitangents
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2, // default (biased vertex normal)
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2, // normals (biased vertex normal)
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2, // tangents (biased vertex normal)
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2, // bitangents (biased vertex normal)
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3, // vertex color (biased vertex normal)
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3, // vertex color (biased vertex normal) + normals
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3, // vertex color (biased vertex normal) + tangents
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3, // vertex color (biased vertex normal) + bitangents
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};
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template<>
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const ShaderBytecode EffectBase<DebugEffectTraits>::PixelShaderBytecode[] =
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{
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{ DebugEffect_PSHemiAmbient, sizeof(DebugEffect_PSHemiAmbient) },
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{ DebugEffect_PSRGBNormals, sizeof(DebugEffect_PSRGBNormals) },
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{ DebugEffect_PSRGBTangents, sizeof(DebugEffect_PSRGBTangents) },
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{ DebugEffect_PSRGBBiTangents, sizeof(DebugEffect_PSRGBBiTangents) },
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};
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template<>
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const int EffectBase<DebugEffectTraits>::PixelShaderIndices[] =
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{
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0, // default
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1, // normals
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2, // tangents
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3, // bitangents
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0, // vertex color + default
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1, // vertex color + normals
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2, // vertex color + tangents
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3, // vertex color + bitangents
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0, // default (biased vertex normal)
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1, // normals (biased vertex normal)
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2, // tangents (biased vertex normal)
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3, // bitangents (biased vertex normal)
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0, // vertex color (biased vertex normal)
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1, // vertex color (biased vertex normal) + normals
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2, // vertex color (biased vertex normal) + tangents
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3, // vertex color (biased vertex normal) + bitangents
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};
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// Global pool of per-deviceDebugEffect resources.
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template<>
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SharedResourcePool<ID3D11Device*, EffectBase<DebugEffectTraits>::DeviceResources> EffectBase<DebugEffectTraits>::deviceResourcesPool = {};
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// Constructor.
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DebugEffect::Impl::Impl(_In_ ID3D11Device* device)
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: EffectBase(device),
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vertexColorEnabled(false),
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biasedVertexNormals(false),
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debugMode(DebugEffect::Mode_Default)
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{
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if (device->GetFeatureLevel() < D3D_FEATURE_LEVEL_10_0)
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{
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throw std::exception("DebugEffect requires Feature Level 10.0 or later");
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}
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static_assert(_countof(EffectBase<DebugEffectTraits>::VertexShaderIndices) == DebugEffectTraits::ShaderPermutationCount, "array/max mismatch");
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static_assert(_countof(EffectBase<DebugEffectTraits>::VertexShaderBytecode) == DebugEffectTraits::VertexShaderCount, "array/max mismatch");
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static_assert(_countof(EffectBase<DebugEffectTraits>::PixelShaderBytecode) == DebugEffectTraits::PixelShaderCount, "array/max mismatch");
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static_assert(_countof(EffectBase<DebugEffectTraits>::PixelShaderIndices) == DebugEffectTraits::ShaderPermutationCount, "array/max mismatch");
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static const XMVECTORF32 s_lower = { { { 0.f, 0.f, 0.f, 1.f } } };
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constants.ambientDownAndAlpha = s_lower;
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constants.ambientRange = g_XMOne;
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}
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int DebugEffect::Impl::GetCurrentShaderPermutation() const noexcept
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{
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int permutation = static_cast<int>(debugMode);
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// Support vertex coloring?
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if (vertexColorEnabled)
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{
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permutation += 4;
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}
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if (biasedVertexNormals)
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{
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// Compressed normals need to be scaled and biased in the vertex shader.
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permutation += 8;
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}
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return permutation;
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}
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// Sets our state onto the D3D device.
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void DebugEffect::Impl::Apply(_In_ ID3D11DeviceContext* deviceContext)
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{
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// Compute derived parameter values.
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matrices.SetConstants(dirtyFlags, constants.worldViewProj);
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// World inverse transpose matrix.
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if (dirtyFlags & EffectDirtyFlags::WorldInverseTranspose)
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{
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constants.world = XMMatrixTranspose(matrices.world);
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XMMATRIX worldInverse = XMMatrixInverse(nullptr, matrices.world);
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constants.worldInverseTranspose[0] = worldInverse.r[0];
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constants.worldInverseTranspose[1] = worldInverse.r[1];
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constants.worldInverseTranspose[2] = worldInverse.r[2];
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dirtyFlags &= ~EffectDirtyFlags::WorldInverseTranspose;
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dirtyFlags |= EffectDirtyFlags::ConstantBuffer;
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}
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// Set shaders and constant buffers.
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ApplyShaders(deviceContext, GetCurrentShaderPermutation());
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}
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// Public constructor.
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DebugEffect::DebugEffect(_In_ ID3D11Device* device)
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: pImpl(std::make_unique<Impl>(device))
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{
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}
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// Move constructor.
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DebugEffect::DebugEffect(DebugEffect&& moveFrom) noexcept
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: pImpl(std::move(moveFrom.pImpl))
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{
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}
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// Move assignment.
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DebugEffect& DebugEffect::operator= (DebugEffect&& moveFrom) noexcept
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{
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pImpl = std::move(moveFrom.pImpl);
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return *this;
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}
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// Public destructor.
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DebugEffect::~DebugEffect()
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{
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}
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// IEffect methods.
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void DebugEffect::Apply(_In_ ID3D11DeviceContext* deviceContext)
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{
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pImpl->Apply(deviceContext);
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}
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void DebugEffect::GetVertexShaderBytecode(_Out_ void const** pShaderByteCode, _Out_ size_t* pByteCodeLength)
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{
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pImpl->GetVertexShaderBytecode(pImpl->GetCurrentShaderPermutation(), pShaderByteCode, pByteCodeLength);
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}
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// Camera settings.
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void XM_CALLCONV DebugEffect::SetWorld(FXMMATRIX value)
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{
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pImpl->matrices.world = value;
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pImpl->dirtyFlags |= EffectDirtyFlags::WorldViewProj | EffectDirtyFlags::WorldInverseTranspose;
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}
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void XM_CALLCONV DebugEffect::SetView(FXMMATRIX value)
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{
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pImpl->matrices.view = value;
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pImpl->dirtyFlags |= EffectDirtyFlags::WorldViewProj;
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}
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void XM_CALLCONV DebugEffect::SetProjection(FXMMATRIX value)
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{
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pImpl->matrices.projection = value;
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pImpl->dirtyFlags |= EffectDirtyFlags::WorldViewProj;
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}
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void XM_CALLCONV DebugEffect::SetMatrices(FXMMATRIX world, CXMMATRIX view, CXMMATRIX projection)
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{
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pImpl->matrices.world = world;
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pImpl->matrices.view = view;
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pImpl->matrices.projection = projection;
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pImpl->dirtyFlags |= EffectDirtyFlags::WorldViewProj | EffectDirtyFlags::WorldInverseTranspose;
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}
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// Material settings.
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void DebugEffect::SetMode(Mode debugMode)
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{
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if (static_cast<int>(debugMode) < 0 || static_cast<int>(debugMode) >= DebugEffectTraits::PixelShaderCount)
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{
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throw std::invalid_argument("Unsupported mode");
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}
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pImpl->debugMode = debugMode;
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}
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void XM_CALLCONV DebugEffect::SetHemisphericalAmbientColor(FXMVECTOR upper, FXMVECTOR lower)
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{
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// Set xyz to new value, but preserve existing w (alpha).
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pImpl->constants.ambientDownAndAlpha = XMVectorSelect(pImpl->constants.ambientDownAndAlpha, lower, g_XMSelect1110);
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pImpl->constants.ambientRange = XMVectorSubtract(upper, lower);
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pImpl->dirtyFlags |= EffectDirtyFlags::ConstantBuffer;
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}
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void DebugEffect::SetAlpha(float value)
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{
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// Set w to new value, but preserve existing xyz (ambient down).
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pImpl->constants.ambientDownAndAlpha = XMVectorSetW(pImpl->constants.ambientDownAndAlpha, value);
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pImpl->dirtyFlags |= EffectDirtyFlags::ConstantBuffer;
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}
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// Vertex color setting.
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void DebugEffect::SetVertexColorEnabled(bool value)
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{
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pImpl->vertexColorEnabled = value;
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}
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// Normal compression settings.
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void DebugEffect::SetBiasedVertexNormals(bool value)
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{
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pImpl->biasedVertexNormals = value;
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}
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