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#pragma once
#include "drape/pointers.hpp"
#include "std/function.hpp"
namespace dp
{
class AttributeProvider;
class BindingInfo;
class BatchCallbacks
{
public:
typedef function<void (BindingInfo const &, void const *, uint16_t)> TFlushVertexFn;
typedef function<uint16_t * (uint16_t, uint16_t &)> TGetIndexStorageFn;
typedef function<void ()> TSubmitIndexFn;
typedef function<uint16_t ()> TGetAvailableFn;
typedef function<void (bool)> ChangeBufferFn;
TFlushVertexFn m_flushVertex;
TGetIndexStorageFn m_getIndexStorage;
TSubmitIndexFn m_submitIndex;
TGetAvailableFn m_getAvailableVertex;
TGetAvailableFn m_getAvailableIndex;
ChangeBufferFn m_changeBuffer;
};
class TriangleBatch
{
public:
TriangleBatch(BatchCallbacks const & callbacks);
virtual void BatchData(RefPointer<AttributeProvider> streams) = 0;
void SetIsCanDevideStreams(bool canDevide);
bool IsCanDevideStreams() const;
void SetVertexStride(uint8_t vertexStride);
protected:
void FlushData(RefPointer<AttributeProvider> streams, uint16_t vertexVount) const;
void FlushData(BindingInfo const & info, void const * data, uint16_t elementCount) const;
uint16_t * GetIndexStorage(uint16_t indexCount, uint16_t & startIndex);
void SubmitIndex();
uint16_t GetAvailableVertexCount() const;
uint16_t GetAvailableIndexCount() const;
void ChangeBuffer(bool checkFilled) const;
uint8_t GetVertexStride() const;
private:
BatchCallbacks m_callbacks;
bool m_canDevideStreams;
uint8_t m_vertexStride;
};
class TriangleListBatch : public TriangleBatch
{
typedef TriangleBatch TBase;
public:
TriangleListBatch(BatchCallbacks const & callbacks);
virtual void BatchData(RefPointer<AttributeProvider> streams);
};
class FanStripHelper : public TriangleBatch
{
typedef TriangleBatch TBase;
public:
FanStripHelper(BatchCallbacks const & callbacks);
protected:
uint16_t BatchIndexes(uint16_t vertexCount);
void CalcBatchPortion(uint16_t vertexCount, uint16_t avVertex, uint16_t avIndex,
uint16_t & batchVertexCount, uint16_t & batchIndexCount);
bool IsFullUploaded() const;
virtual uint16_t VtoICount(uint16_t vCount) const;
virtual uint16_t ItoVCount(uint16_t iCount) const;
virtual uint16_t AlignVCount(uint16_t vCount) const;
virtual uint16_t AlignICount(uint16_t vCount) const;
virtual void GenerateIndexes(uint16_t * indexStorage, uint16_t count, uint16_t startIndex) const;
private:
bool m_isFullUploaded;
};
class TriangleStripBatch : public FanStripHelper
{
typedef FanStripHelper TBase;
public:
TriangleStripBatch(BatchCallbacks const & callbacks);
virtual void BatchData(RefPointer<AttributeProvider> streams);
};
class TriangleFanBatch : public FanStripHelper
{
typedef FanStripHelper TBase;
public:
TriangleFanBatch(BatchCallbacks const & callbacks);
virtual void BatchData(RefPointer<AttributeProvider> streams);
};
class TriangleListOfStripBatch : public FanStripHelper
{
typedef FanStripHelper TBase;
public:
TriangleListOfStripBatch(BatchCallbacks const & callbacks);
virtual void BatchData(RefPointer<AttributeProvider> streams);
protected:
virtual uint16_t VtoICount(uint16_t vCount) const;
virtual uint16_t ItoVCount(uint16_t iCount) const;
virtual uint16_t AlignVCount(uint16_t vCount) const;
virtual void GenerateIndexes(uint16_t * indexStorage, uint16_t count, uint16_t startIndex) const;
};
} // namespace dp
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