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146 lines
4.7 KiB
C++
146 lines
4.7 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Renderer module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Renderer/RenderStates.hpp>
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#include <Nazara/Core/Algorithm.hpp>
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#include <Nazara/Math/Algorithm.hpp>
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#include <functional>
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#include <Nazara/Renderer/Debug.hpp>
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namespace Nz
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{
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bool operator==(const RenderStates& lhs, const RenderStates& rhs)
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{
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#define NazaraRenderStateMember(field) if (lhs.field != rhs.field) return false
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#define NazaraRenderStateBoolMember NazaraRenderStateMember
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#define NazaraRenderStateFloatMember(field, maxDiff) if (!NumberEquals(lhs.field, rhs.field, maxDiff)) return false
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NazaraRenderStateBoolMember(blending);
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NazaraRenderStateBoolMember(colorWrite);
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NazaraRenderStateBoolMember(depthBuffer);
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NazaraRenderStateBoolMember(faceCulling);
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NazaraRenderStateBoolMember(scissorTest);
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NazaraRenderStateBoolMember(stencilTest);
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if (lhs.depthBuffer)
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NazaraRenderStateBoolMember(depthWrite);
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NazaraRenderStateMember(faceFilling);
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if (lhs.blending) //< Remember, at this time we know lhs.blending == rhs.blending
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{
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NazaraRenderStateMember(dstBlend);
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NazaraRenderStateMember(srcBlend);
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}
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if (lhs.depthBuffer)
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NazaraRenderStateMember(depthFunc);
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if (lhs.faceCulling)
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NazaraRenderStateMember(cullingSide);
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if (lhs.stencilTest)
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{
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NazaraRenderStateMember(stencilCompare.back);
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NazaraRenderStateMember(stencilCompare.front);
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NazaraRenderStateMember(stencilCompareMask.back);
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NazaraRenderStateMember(stencilCompareMask.front);
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NazaraRenderStateMember(stencilDepthFail.back);
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NazaraRenderStateMember(stencilDepthFail.front);
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NazaraRenderStateMember(stencilFail.back);
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NazaraRenderStateMember(stencilFail.front);
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NazaraRenderStateMember(stencilPass.back);
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NazaraRenderStateMember(stencilPass.front);
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NazaraRenderStateMember(stencilReference.back);
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NazaraRenderStateMember(stencilReference.front);
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NazaraRenderStateMember(stencilWriteMask.back);
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NazaraRenderStateMember(stencilWriteMask.front);
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}
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NazaraRenderStateFloatMember(lineWidth, 0.001f);
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NazaraRenderStateFloatMember(pointSize, 0.001f);
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#undef NazaraRenderStateMember
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#undef NazaraRenderStateBoolMember
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#undef NazaraRenderStateFloatMember
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return true;
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}
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}
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namespace std
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{
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template<>
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struct hash<Nz::RenderStates>
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{
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size_t operator()(const Nz::RenderStates& pipelineInfo) const
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{
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std::size_t seed = 0;
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Nz::UInt8 parameterHash = 0;
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Nz::UInt8 parameterIndex = 0;
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#define NazaraRenderStateBool(member) parameterHash |= ((pipelineInfo.member) ? 1U : 0U) << (parameterIndex++)
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#define NazaraRenderStateBoolDep(dependency, member) parameterHash |= ((pipelineInfo.dependency && pipelineInfo.member) ? 1U : 0U) << (parameterIndex++)
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#define NazaraRenderStateEnum(member) Nz::HashCombine(seed, static_cast<Nz::UInt8>(pipelineInfo.member))
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#define NazaraRenderStateFloat(member, maxDiff) Nz::HashCombine(seed, std::floor(pipelineInfo.member / maxDiff) * maxDiff)
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NazaraRenderStateBool(blending);
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NazaraRenderStateBool(colorWrite);
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NazaraRenderStateBool(depthBuffer);
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NazaraRenderStateBool(faceCulling);
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NazaraRenderStateBool(scissorTest);
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NazaraRenderStateBool(stencilTest);
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NazaraRenderStateBoolDep(depthBuffer, depthWrite);
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NazaraRenderStateEnum(faceFilling);
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if (pipelineInfo.blending) //< Remember, at this time we know lhs.blending == rhs.blending
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{
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NazaraRenderStateEnum(dstBlend);
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NazaraRenderStateEnum(srcBlend);
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}
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if (pipelineInfo.depthBuffer)
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NazaraRenderStateEnum(depthFunc);
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if (pipelineInfo.faceCulling)
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NazaraRenderStateEnum(cullingSide);
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if (pipelineInfo.stencilTest)
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{
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NazaraRenderStateEnum(stencilCompare.back);
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NazaraRenderStateEnum(stencilCompare.front);
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NazaraRenderStateEnum(stencilCompareMask.back);
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NazaraRenderStateEnum(stencilCompareMask.front);
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NazaraRenderStateEnum(stencilDepthFail.back);
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NazaraRenderStateEnum(stencilDepthFail.front);
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NazaraRenderStateEnum(stencilFail.back);
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NazaraRenderStateEnum(stencilFail.front);
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NazaraRenderStateEnum(stencilPass.back);
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NazaraRenderStateEnum(stencilPass.front);
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NazaraRenderStateEnum(stencilReference.back);
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NazaraRenderStateEnum(stencilReference.front);
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NazaraRenderStateEnum(stencilWriteMask.back);
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NazaraRenderStateEnum(stencilWriteMask.front);
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}
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NazaraRenderStateFloat(lineWidth, 0.001f);
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NazaraRenderStateFloat(pointSize, 0.001f);
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#undef NazaraRenderStateBool
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#undef NazaraRenderStateBoolDep
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#undef NazaraRenderStateEnum
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#undef NazaraRenderStateFloat
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Nz::HashCombine(seed, parameterHash);
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return seed;
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}
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};
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}
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#include <Nazara/Renderer/DebugOff.hpp>
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