OpenSubdiv/opensubdiv/osd/gcdComputeController.h

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//
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#ifndef OSD_GCD_COMPUTE_CONTROLLER_H
#define OSD_GCD_COMPUTE_CONTROLLER_H
#include "../version.h"
#include "../far/dispatcher.h"
#include "../osd/cpuComputeContext.h"
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#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,
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(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, 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;
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private:
dispatch_queue_t _gcd_queue;
};
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif // OSD_GCD_COMPUTE_CONTROLLER_H