mirror of https://github.com/axmolengine/axmol.git
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
/****************************************************************************
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Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
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https://axmol.dev/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "Macros.h"
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#include "Types.h"
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#include "base/Object.h"
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NS_AX_BACKEND_BEGIN
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class RenderTarget;
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/**
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* @addtogroup _backend
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* @{
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*/
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/**
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* Stencil descriptor.
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*/
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struct StencilDescriptor
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{
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bool operator==(const StencilDescriptor& rhs) const;
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StencilOperation stencilFailureOperation = StencilOperation::KEEP;
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StencilOperation depthFailureOperation = StencilOperation::KEEP;
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StencilOperation depthStencilPassOperation = StencilOperation::KEEP;
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CompareFunction stencilCompareFunction = CompareFunction::ALWAYS;
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unsigned int readMask = 0;
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unsigned int writeMask = 0;
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};
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/**
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* Depth and stencil descriptor.
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*/
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struct DepthStencilDescriptor
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{
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CompareFunction depthCompareFunction = CompareFunction::LESS;
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StencilDescriptor backFaceStencil;
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StencilDescriptor frontFaceStencil;
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void addFlag(DepthStencilFlags flag) { this->flags |= flag; }
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void removeFlag(DepthStencilFlags flag) { this->flags &= ~flag; }
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DepthStencilFlags flags = DepthStencilFlags::ALL;
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};
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/**
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* Store Depth and stencil status.
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*/
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class DepthStencilState : public ax::Object
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{
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public:
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virtual void update(const DepthStencilDescriptor& desc);
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const DepthStencilDescriptor& getDepthStencilInfo() const { return _depthStencilInfo; }
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bool isEnabled() const { return bitmask::any(_depthStencilInfo.flags, DepthStencilFlags::DEPTH_STENCIL_TEST); }
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protected:
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/**
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* @param descriptor Specifies depth and stencil descriptor.
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*/
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DepthStencilState() = default;
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virtual ~DepthStencilState();
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DepthStencilDescriptor _depthStencilInfo{}; ///< depth and stencil descriptor.
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bool _isBackFrontStencilEqual = false; ///< Does front stencil status equals to back stencil's.
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};
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// end of _backend group
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/// @}
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NS_AX_BACKEND_END
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