foreman
71 строка
1.9 KiB
C++
71 строка
1.9 KiB
C++
//
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// Copyright (c) 2010 Advanced Micro Devices, Inc. All rights reserved.
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//
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#ifndef GPUCONSTBUF_HPP_
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#define GPUCONSTBUF_HPP_
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#include "device/gpu/gpuresource.hpp"
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//! \namespace gpu GPU Resource Implementation
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namespace gpu {
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//! Cconstant buffer
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class ConstBuffer : public Resource
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{
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public:
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//! Vector size of the constant buffer
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static const size_t VectorSize = 16;
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//! Constructor for the ConstBuffer class
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ConstBuffer(
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VirtualGPU& gpu, //!< Virtual GPU device object
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size_t size //!< size of the constant buffer in vectors
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);
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//! Destructor for the ConstBuffer class
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~ConstBuffer();
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//! Creates the real HW constant buffer
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bool create();
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/*! \brief Uploads current constant buffer data from sysMemCopy_ to HW
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*
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* \return True if the data upload was succesful
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*/
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bool uploadDataToHw(
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size_t size //!< real data size for upload
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);
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//! Returns a pointer to the system memory copy for CB
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address sysMemCopy() const { return sysMemCopy_; }
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//! Returns CB size
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size_t size() const { return size_; }
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//! Returns current write offset for the constant buffer
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size_t wrtOffset() const { return wrtOffset_; }
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//! Returns last write size for the constant buffer
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size_t lastWrtSize() const { return lastWrtSize_; }
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private:
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//! Disable copy constructor
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ConstBuffer(const ConstBuffer&);
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//! Disable operator=
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ConstBuffer& operator=(const ConstBuffer&);
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VirtualGPU& gpu_; //!< Virtual GPU object
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address sysMemCopy_; //!< System memory copy
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size_t size_; //!< Constant buffer size
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size_t wrtOffset_; //!< Current write offset
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size_t lastWrtSize_; //!< Last write size
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void* wrtAddress_; //!< Write address in CB
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};
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/*@}*/} // namespace gpu
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#endif /*GPUCONSTBUF_HPP_*/
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