OpenSubdiv/opensubdiv/osd/gcdComputeController.h
Takahito Tejima 44a7cb6a45 Refactor Far API.
* replace void* of all kernel applications with CONTEXT template parameter.
  It eliminates many static_casts from void* for both far and osd classes.
* move the big switch-cases of far default kernel launches out of Refine so
  that osd controllers can arbitrary mix default kernels and custom kernels.
* change FarKernelBatch::kernelType from enum to int, clients can add
  custom kernel types.
* remove a back-pointer to farmesh from subdivision table.
* untemplate all subdivision table classes and template their compute methods
  instead. Those methods take a typed vertex storage.
* remove an unused argument FarMesh from the constructor of subdivision
  table factories.
2014-03-19 11:44:51 -07:00

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//
// Copyright 2013 Pixar
//
// 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:
//
// 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.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// 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.
//
#ifndef OSD_GCD_COMPUTE_CONTROLLER_H
#define OSD_GCD_COMPUTE_CONTROLLER_H
#include "../version.h"
#include "../far/dispatcher.h"
#include "../osd/cpuComputeContext.h"
#include <dispatch/dispatch.h>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
/// \brief Compute controller for launching Grand Central Dispatch subdivision
/// kernels.
///
/// OsdGcdComputeController is a compute controller class to launch Grand Central
/// Dispatch threaded subdivision kernels. It requires OsdCpuVertexBufferInterface
/// 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 OsdGcdComputeController {
public:
typedef OsdCpuComputeContext ComputeContext;
/// Constructor.
explicit OsdGcdComputeController();
/// 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(OsdCpuComputeContext *context,
FarKernelBatchVector const & batches,
VERTEX_BUFFER *vertexBuffer,
VARYING_BUFFER *varyingBuffer) {
if (batches.empty()) return;
context->Bind(vertexBuffer, varyingBuffer);
FarDispatcher::Refine(this, context, batches, /*maxlevel*/-1);
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(OsdCpuComputeContext *context,
FarKernelBatchVector const & batches,
VERTEX_BUFFER *vertexBuffer) {
Refine(context, batches, vertexBuffer, (VERTEX_BUFFER*)0);
}
/// Waits until all running subdivision kernels finish.
void Synchronize();
protected:
friend class FarDispatcher;
void ApplyBilinearFaceVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyBilinearEdgeVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyBilinearVertexVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyCatmarkFaceVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyCatmarkEdgeVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyCatmarkVertexVerticesKernelB(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyCatmarkVertexVerticesKernelA1(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyCatmarkVertexVerticesKernelA2(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyLoopEdgeVerticesKernel(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyLoopVertexVerticesKernelB(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyLoopVertexVerticesKernelA1(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyLoopVertexVerticesKernelA2(FarKernelBatch const &batch, ComputeContext *context) const;
void ApplyVertexEdits(FarKernelBatch const &batch, ComputeContext *context) const;
private:
dispatch_queue_t _gcd_queue;
};
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif // OSD_GCD_COMPUTE_CONTROLLER_H