037b69c8a7
This shouldn't be in the hardware independent interface because the semantics on OpenGL and Vulkan are too different, so a common implementation is not possible. Most bind calls were in the GL interface anyway, so these no longer pass through hardware independent code. This also moves the bind calls in the shadowmap code into the GL interface - these never did anything useful in Vulkan and aren't needed there. Last but not least, this moves the legacy buffer binding handling into FGLRenderState and performs the initial binding for the light buffer in a more suitable place so that this doesn't have to pollute the render state.
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
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#pragma once
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#include "hw_aabbtree.h"
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#include "stats.h"
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#include <memory>
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struct FDynamicLight;
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struct level_info_t;
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class IDataBuffer;
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struct FLevelLocals;
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class IShadowMap
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{
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public:
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IShadowMap() { }
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virtual ~IShadowMap();
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void Reset();
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// Test if a world position is in shadow relative to the specified light and returns false if it is
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bool ShadowTest(FDynamicLight *light, const DVector3 &pos);
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// Returns true if gl_light_shadowmap is enabled and supported by the hardware
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bool IsEnabled() const;
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static cycle_t UpdateCycles;
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static int LightsProcessed;
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static int LightsShadowmapped;
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bool PerformUpdate();
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void FinishUpdate()
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{
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UpdateCycles.Clock();
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}
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unsigned int NodesCount() const
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{
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assert(mAABBTree);
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return mAABBTree->NodesCount();
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}
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protected:
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void CollectLights();
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bool ValidateAABBTree(FLevelLocals *lev);
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// Upload the AABB-tree to the GPU
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void UploadAABBTree();
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// Upload light list to the GPU
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void UploadLights();
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// Working buffer for creating the list of lights. Stored here to avoid allocating memory each frame
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TArray<float> mLights;
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// Used to detect when a level change requires the AABB tree to be regenerated
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level_info_t *mLastLevel = nullptr;
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unsigned mLastNumNodes = 0;
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unsigned mLastNumSegs = 0;
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// AABB-tree of the level, used for ray tests
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std::unique_ptr<hwrenderer::LevelAABBTree> mAABBTree;
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IShadowMap(const IShadowMap &) = delete;
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IShadowMap &operator=(IShadowMap &) = delete;
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// OpenGL storage buffer with the list of lights in the shadow map texture
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// These buffers need to be accessed by the OpenGL backend directly so that they can be bound.
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public:
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IDataBuffer *mLightList = nullptr;
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// OpenGL storage buffers for the AABB tree
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IDataBuffer *mNodesBuffer = nullptr;
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IDataBuffer *mLinesBuffer = nullptr;
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};
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