81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
// Copyright (C) 2008-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef IRR_I_VERTEX_BUFFER_H_INCLUDED
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#define IRR_I_VERTEX_BUFFER_H_INCLUDED
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#include "IReferenceCounted.h"
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#include "irrArray.h"
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#include "EHardwareBufferFlags.h"
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#include "S3DVertex.h"
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namespace irr
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{
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namespace scene
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{
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class IVertexBuffer : public virtual IReferenceCounted
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{
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public:
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//! Pointer to first element of vertex data
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virtual void* getData() =0;
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//! Const pointer to first element
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virtual const void* getData() const =0;
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//! Same as getData.
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virtual void* pointer() { return getData(); }
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virtual video::E_VERTEX_TYPE getType() const =0;
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virtual void setType(video::E_VERTEX_TYPE vertexType) =0;
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//! Number of bytes per element
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virtual u32 stride() const =0;
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//! Number of elements
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virtual u32 size() const =0;
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//! Add vertex to end.
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//* Note that if you pass another type than the currently used vertex type then information can be lost */
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virtual void push_back(const video::S3DVertex &element) =0;
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virtual void push_back(const video::S3DVertex2TCoords &element) =0;
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virtual void push_back(const video::S3DVertexTangents &element) =0;
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//! Set value at index. Buffer must be already large enough that element exists.
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//* Note that if you pass another type than the currently used vertex type then information can be lost */
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virtual void setValue(u32 index, const video::S3DVertex &value) =0;
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virtual void setValue(u32 index, const video::S3DVertex2TCoords &value) =0;
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virtual void setValue(u32 index, const video::S3DVertexTangents &value) =0;
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//! Direct access to elements. Risky to use!
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/** The reference _must_ be cast to the correct type before use. It's only video::S3DVertex if getType is EVT_STANDARD.
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otherwise cast it first to a reference type derived from S3DVertex like S3DVertex2TCoords& or S3DVertexTangents&. */
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virtual video::S3DVertex& operator [](u32 index) = 0;
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virtual video::S3DVertex& operator [](const u32 index) const =0;
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virtual video::S3DVertex& getLast() =0;
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virtual void set_used(u32 usedNow) =0;
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virtual void reallocate(u32 new_size, bool canShrink=true) =0;
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virtual u32 allocated_size() const =0;
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//! get the current hardware mapping hint
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virtual E_HARDWARE_MAPPING getHardwareMappingHint() const =0;
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//! set the hardware mapping hint, for driver
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virtual void setHardwareMappingHint( E_HARDWARE_MAPPING NewMappingHint ) =0;
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//! flags the meshbuffer as changed, reloads hardware buffers
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virtual void setDirty() =0;
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//! Get the currently used ID for identification of changes.
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/** This shouldn't be used for anything outside the VideoDriver. */
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virtual u32 getChangedID() const = 0;
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};
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} // end namespace scene
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} // end namespace irr
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#endif
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