OpenSubdiv/opensubdiv/osd/clComputeController.h

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//
// Copyright 2013 Pixar
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//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
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//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
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//
// You may obtain a copy of the Apache License at
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//
// http://www.apache.org/licenses/LICENSE-2.0
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//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
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//
#ifndef OSD_CL_COMPUTE_CONTROLLER_H
#define OSD_CL_COMPUTE_CONTROLLER_H
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#include "../version.h"
#include "../far/dispatcher.h"
#include "../osd/clComputeContext.h"
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#if defined(__APPLE__)
#include <OpenCL/opencl.h>
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#else
#include <CL/opencl.h>
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#endif
#include <vector>
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namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
class OsdCLKernelBundle;
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/// \brief Compute controller for launching OpenCL subdivision kernels.
///
/// OsdCLComputeController is a compute controller class to launch
/// OpenCL subdivision kernels. It requires OsdCLVertexBufferInterface
/// as arguments of Refine function.
///
/// Controller entities execute requests from Context instances that they share
/// common interfaces with. Controllers are attached to discrete compute devices
/// and share the devices resources with Context entities.
///
class OsdCLComputeController {
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public:
typedef OsdCLComputeContext ComputeContext;
/// Constructor.
///
/// @param clContext a valid instanciated OpenCL context
///
/// @param queue a valid non-zero OpenCL command queue
///
OsdCLComputeController(cl_context clContext, cl_command_queue queue);
/// Destructor.
~OsdCLComputeController();
/// Launch subdivision kernels and apply to given vertex buffers.
///
/// @param context the OsdCpuContext to apply refinement operations to
///
/// @param batches vector of batches of vertices organized by operative
/// kernel
///
/// @param vertexBuffer vertex-interpolated data buffer
///
/// @param varyingBuffer varying-interpolated data buffer
///
template<class VERTEX_BUFFER, class VARYING_BUFFER>
void Refine(OsdCLComputeContext *context,
FarKernelBatchVector const &batches,
VERTEX_BUFFER *vertexBuffer,
VARYING_BUFFER *varyingBuffer) {
if (batches.empty()) return;
int numVertexElements = vertexBuffer ? vertexBuffer->GetNumElements() : 0;
int numVaryingElements = varyingBuffer ? varyingBuffer->GetNumElements() : 0;
context->SetKernelBundle(getKernelBundle(numVertexElements, numVaryingElements));
context->Bind(vertexBuffer, varyingBuffer, _clQueue);
FarDispatcher::Refine(this,
batches,
-1,
context);
context->Unbind();
}
/// Launch subdivision kernels and apply to given vertex buffers.
///
/// @param context the OsdCpuContext to apply refinement operations to
///
/// @param batches vector of batches of vertices organized by operative
/// kernel
///
/// @param vertexBuffer vertex-interpolated data buffer
///
template<class VERTEX_BUFFER>
void Refine(OsdCLComputeContext *context,
FarKernelBatchVector const &batches,
VERTEX_BUFFER *vertexBuffer) {
Refine(context, batches, vertexBuffer, (VERTEX_BUFFER*)NULL);
}
/// Waits until all running subdivision kernels finish.
void Synchronize();
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/// Returns CL context
cl_context GetContext() const { return _clContext; }
/// Returns CL command queue
cl_command_queue GetCommandQueue() const { return _clQueue; }
protected:
friend class FarDispatcher;
void ApplyBilinearFaceVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyBilinearEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyBilinearVertexVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyCatmarkFaceVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyCatmarkEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyCatmarkVertexVerticesKernelB(FarKernelBatch const &batch, void * clientdata) const;
void ApplyCatmarkVertexVerticesKernelA1(FarKernelBatch const &batch, void * clientdata) const;
void ApplyCatmarkVertexVerticesKernelA2(FarKernelBatch const &batch, void * clientdata) const;
void ApplyLoopEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
void ApplyLoopVertexVerticesKernelB(FarKernelBatch const &batch, void * clientdata) const;
void ApplyLoopVertexVerticesKernelA1(FarKernelBatch const &batch, void * clientdata) const;
void ApplyLoopVertexVerticesKernelA2(FarKernelBatch const &batch, void * clientdata) const;
void ApplyVertexEdits(FarKernelBatch const &batch, void * clientdata) const;
OsdCLKernelBundle * getKernelBundle(int numVertexElements,
int numVaryingElements);
private:
cl_context _clContext;
cl_command_queue _clQueue;
std::vector<OsdCLKernelBundle *> _kernelRegistry;
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};
} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
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#endif // OSD_COMPUTE_CONTROLLER_H