83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the terms set forth in the LICENSE.txt file available at
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// https://opensubdiv.org/license.
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//
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#ifndef OPENSUBDIV3_OSD_CL_VERTEX_BUFFER_H
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#define OPENSUBDIV3_OSD_CL_VERTEX_BUFFER_H
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#include "../version.h"
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#include "../osd/opencl.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Osd {
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///
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/// \brief Concrete vertex buffer class for OpenCL subdivision.
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///
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/// CLVertexBuffer implements CLVertexBufferInterface. An instance of this
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/// buffer class can be passed to CLEvaluator
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///
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class CLVertexBuffer {
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public:
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/// Creator. Returns NULL if error.
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static CLVertexBuffer * Create(int numElements, int numVertices, cl_context clContext);
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template <typename DEVICE_CONTEXT>
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static CLVertexBuffer * Create(int numElements, int numVertices,
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DEVICE_CONTEXT context) {
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return Create(numElements, numVertices, context->GetContext());
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}
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/// Destructor.
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~CLVertexBuffer();
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/// This method is meant to be used in client code in order to provide coarse
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/// vertices data to Osd.
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void UpdateData(const float *src, int startVertex, int numVertices, cl_command_queue clQueue,
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cl_event* startEvents = NULL, unsigned int numStartEvents = 0, cl_event* endEvent = NULL);
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template<typename DEVICE_CONTEXT>
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void UpdateData(const float *src, int startVertex, int numVertices,
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DEVICE_CONTEXT context,
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cl_event* startEvents = NULL, unsigned int numStartEvents = 0, cl_event* endEvent = NULL) {
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UpdateData(src, startVertex, numVertices, context->GetCommandQueue(), startEvents, numStartEvents, endEvent);
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}
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/// Returns how many elements defined in this vertex buffer.
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int GetNumElements() const;
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/// Returns how many vertices allocated in this vertex buffer.
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int GetNumVertices() const;
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/// Returns the CL memory object.
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cl_mem BindCLBuffer(cl_command_queue queue);
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protected:
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/// Constructor.
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CLVertexBuffer(int numElements, int numVertices, cl_context clContext);
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/// Allocates CL memory for this buffer.
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/// Returns true if success.
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bool allocate(cl_context clContext);
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private:
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int _numElements;
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int _numVertices;
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cl_mem _clMemory;
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};
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} // end namespace Osd
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif // OPENSUBDIV3_OSD_CL_VERTEX_BUFFER_H
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