OpenSubdiv/opensubdiv/osd/glslTransformFeedbackComputeController.h
Takahito Tejima 51a45b598d Updating EULA
2013-07-18 14:19:50 -07:00

156 lines
5.7 KiB
C++

//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License
// and the following modification to it: Section 6 Trademarks.
// 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 for reproducing
// the content of the NOTICE file.
//
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific
// language governing permissions and limitations under the
// License.
//
#ifndef OSD_GLSL_TRANSFORM_FEEDBACK_COMPUTE_CONTROLLER_H
#define OSD_GLSL_TRANSFORM_FEEDBACK_COMPUTE_CONTROLLER_H
#include "../version.h"
#include "../far/dispatcher.h"
#include "../osd/glslTransformFeedbackComputeContext.h"
#include <vector>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
class OsdGLSLTransformFeedbackKernelBundle;
/// \brief Compute controller for launching GLSLTransformFeedback transform feedback
/// subdivision kernels.
///
/// OsdGLSLTransformFeedbackComputeController is a compute controller class to launch
/// GLSLTransformFeedback transfrom feedback subdivision kernels. It requires
/// OsdGLVertexBufferInterface 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 OsdGLSLTransformFeedbackComputeController {
public:
typedef OsdGLSLTransformFeedbackComputeContext ComputeContext;
/// Constructor.
OsdGLSLTransformFeedbackComputeController();
/// Destructor.
~OsdGLSLTransformFeedbackComputeController();
/// 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(OsdGLSLTransformFeedbackComputeContext *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(getKernels(numVertexElements, numVaryingElements));
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(OsdGLSLTransformFeedbackComputeContext *context,
FarKernelBatchVector const &batches,
VERTEX_BUFFER *vertexBuffer) {
Refine(context, batches, vertexBuffer, (VERTEX_BUFFER*)NULL);
}
/// 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;
OsdGLSLTransformFeedbackKernelBundle * getKernels(int numVertexElements,
int numVaryingElements);
private:
std::vector<OsdGLSLTransformFeedbackKernelBundle *> _kernelRegistry;
};
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif // OSD_GLSL_TRANSFORM_FEEDBACK_COMPUTE_CONTROLLER_H