mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-27 05:50:05 +00:00
f9523f916f
A mechanical substitution of VertexBufferDescriptor with BufferDescriptor. Also removing unused files from osd.
627 lines
26 KiB
C++
627 lines
26 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OPENSUBDIV3_OSD_GL_COMPUTE_EVALUATOR_H
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#define OPENSUBDIV3_OSD_GL_COMPUTE_EVALUATOR_H
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#include "../version.h"
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#include "../osd/opengl.h"
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#include "../osd/types.h"
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#include "../osd/bufferDescriptor.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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class PatchTable;
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class StencilTable;
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class LimitStencilTable;
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}
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namespace Osd {
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/// \brief GL stencil table (Shader Storage buffer)
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///
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/// This class is a GLSL SSBO representation of Far::StencilTable.
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///
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/// GLSLComputeKernel consumes this table to apply stencils
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///
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class GLStencilTableSSBO {
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public:
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static GLStencilTableSSBO *Create(Far::StencilTable const *stencilTable,
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void *deviceContext = NULL) {
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(void)deviceContext; // unused
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return new GLStencilTableSSBO(stencilTable);
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}
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static GLStencilTableSSBO *Create(
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Far::LimitStencilTable const *limitStencilTable,
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void *deviceContext = NULL) {
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(void)deviceContext; // unused
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return new GLStencilTableSSBO(limitStencilTable);
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}
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explicit GLStencilTableSSBO(Far::StencilTable const *stencilTable);
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explicit GLStencilTableSSBO(Far::LimitStencilTable const *limitStencilTable);
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~GLStencilTableSSBO();
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// interfaces needed for GLSLComputeKernel
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GLuint GetSizesBuffer() const { return _sizes; }
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GLuint GetOffsetsBuffer() const { return _offsets; }
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GLuint GetIndicesBuffer() const { return _indices; }
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GLuint GetWeightsBuffer() const { return _weights; }
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GLuint GetDuWeightsBuffer() const { return _duWeights; }
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GLuint GetDvWeightsBuffer() const { return _dvWeights; }
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int GetNumStencils() const { return _numStencils; }
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private:
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GLuint _sizes;
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GLuint _offsets;
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GLuint _indices;
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GLuint _weights;
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GLuint _duWeights;
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GLuint _dvWeights;
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int _numStencils;
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};
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// ---------------------------------------------------------------------------
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class GLComputeEvaluator {
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public:
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typedef bool Instantiatable;
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static GLComputeEvaluator * Create(BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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BufferDescriptor const &duDesc,
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BufferDescriptor const &dvDesc,
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void * deviceContext = NULL) {
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(void)deviceContext; // not used
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GLComputeEvaluator *instance = new GLComputeEvaluator();
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if (instance->Compile(srcDesc, dstDesc, duDesc, dvDesc)) return instance;
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delete instance;
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return NULL;
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}
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/// Constructor.
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GLComputeEvaluator();
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/// Destructor. note that the GL context must be made current.
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~GLComputeEvaluator();
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/// ----------------------------------------------------------------------
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///
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/// Stencil evaluations with StencilTable
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///
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/// ----------------------------------------------------------------------
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/// \brief Generic static compute function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// transparently from OsdMesh template interface.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a
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/// GL buffer object of source data
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBO() method returning a
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/// GL buffer object of destination data
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param stencilTable stencil table to be applied. The table must have
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/// SSBO interfaces.
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///
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/// @param instance cached compiled instance. Clients are supposed to
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/// pre-compile an instance of this class and provide
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/// to this function. If it's null the kernel still
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/// compute by instantiating on-demand kernel although
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/// it may cause a performance problem.
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///
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/// @param deviceContext not used in the GLSL kernel
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///
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template <typename SRC_BUFFER, typename DST_BUFFER, typename STENCIL_TABLE>
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static bool EvalStencils(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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STENCIL_TABLE const *stencilTable,
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GLComputeEvaluator const *instance,
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void * deviceContext = NULL) {
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if (instance) {
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return instance->EvalStencils(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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stencilTable);
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} else {
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// Create a kernel on demand (slow)
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(void)deviceContext; // unused
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instance = Create(srcDesc, dstDesc,
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BufferDescriptor(),
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BufferDescriptor());
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if (instance) {
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bool r = instance->EvalStencils(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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stencilTable);
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delete instance;
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return r;
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}
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return false;
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}
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}
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/// \brief Generic static compute function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// transparently from OsdMesh template interface.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a
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/// GL buffer object of source data
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBO() method returning a
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/// GL buffer object of destination data
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///
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/// @param dstDesc vertex buffer descriptor for the dstBuffer
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///
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/// @param duBuffer Output U-derivative buffer
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/// must have BindVBO() method returning a
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/// GL buffer object of destination data
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///
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/// @param duDesc vertex buffer descriptor for the duBuffer
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///
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/// @param dvBuffer Output V-derivative buffer
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/// must have BindVBO() method returning a
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/// GL buffer object of destination data
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///
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/// @param dvDesc vertex buffer descriptor for the dvBuffer
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///
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/// @param stencilTable stencil table to be applied. The table must have
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/// SSBO interfaces.
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///
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/// @param instance cached compiled instance. Clients are supposed to
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/// pre-compile an instance of this class and provide
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/// to this function. If it's null the kernel still
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/// compute by instantiating on-demand kernel although
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/// it may cause a performance problem.
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///
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/// @param deviceContext not used in the GLSL kernel
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///
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template <typename SRC_BUFFER, typename DST_BUFFER, typename STENCIL_TABLE>
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static bool EvalStencils(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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DST_BUFFER *duBuffer, BufferDescriptor const &duDesc,
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DST_BUFFER *dvBuffer, BufferDescriptor const &dvDesc,
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STENCIL_TABLE const *stencilTable,
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GLComputeEvaluator const *instance,
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void * deviceContext = NULL) {
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if (instance) {
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return instance->EvalStencils(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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duBuffer, duDesc,
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dvBuffer, dvDesc,
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stencilTable);
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} else {
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// Create a kernel on demand (slow)
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(void)deviceContext; // unused
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instance = Create(srcDesc, dstDesc, duDesc, dvDesc);
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if (instance) {
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bool r = instance->EvalStencils(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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duBuffer, duDesc,
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dvBuffer, dvDesc,
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stencilTable);
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delete instance;
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return r;
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}
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return false;
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}
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}
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/// Dispatch the GLSL compute kernel on GPU asynchronously.
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/// returns false if the kernel hasn't been compiled yet.
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template <typename SRC_BUFFER, typename DST_BUFFER, typename STENCIL_TABLE>
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bool EvalStencils(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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STENCIL_TABLE const *stencilTable) const {
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return EvalStencils(srcBuffer->BindVBO(), srcDesc,
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dstBuffer->BindVBO(), dstDesc,
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0, BufferDescriptor(),
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0, BufferDescriptor(),
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stencilTable->GetSizesBuffer(),
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stencilTable->GetOffsetsBuffer(),
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stencilTable->GetIndicesBuffer(),
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stencilTable->GetWeightsBuffer(),
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0,
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0,
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/* start = */ 0,
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/* end = */ stencilTable->GetNumStencils());
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}
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/// Dispatch the GLSL compute kernel on GPU asynchronously.
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/// returns false if the kernel hasn't been compiled yet.
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template <typename SRC_BUFFER, typename DST_BUFFER, typename STENCIL_TABLE>
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bool EvalStencils(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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DST_BUFFER *duBuffer, BufferDescriptor const &duDesc,
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DST_BUFFER *dvBuffer, BufferDescriptor const &dvDesc,
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STENCIL_TABLE const *stencilTable) const {
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return EvalStencils(srcBuffer->BindVBO(), srcDesc,
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dstBuffer->BindVBO(), dstDesc,
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duBuffer->BindVBO(), duDesc,
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dvBuffer->BindVBO(), dvDesc,
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stencilTable->GetSizesBuffer(),
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stencilTable->GetOffsetsBuffer(),
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stencilTable->GetIndicesBuffer(),
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stencilTable->GetWeightsBuffer(),
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stencilTable->GetDuWeightsBuffer(),
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stencilTable->GetDvWeightsBuffer(),
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/* start = */ 0,
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/* end = */ stencilTable->GetNumStencils());
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}
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/// Dispatch the GLSL compute kernel on GPU asynchronously.
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/// returns false if the kernel hasn't been compiled yet.
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bool EvalStencils(GLuint srcBuffer, BufferDescriptor const &srcDesc,
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GLuint dstBuffer, BufferDescriptor const &dstDesc,
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GLuint duBuffer, BufferDescriptor const &duDesc,
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GLuint dvBuffer, BufferDescriptor const &dvDesc,
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GLuint sizesBuffer,
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GLuint offsetsBuffer,
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GLuint indicesBuffer,
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GLuint weightsBuffer,
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GLuint duWeightsBuffer,
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GLuint dvWeightsBuffer,
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int start,
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int end) const;
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/// ----------------------------------------------------------------------
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///
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/// Limit evaluations with PatchTable
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///
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/// ----------------------------------------------------------------------
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///
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/// \brief Generic limit eval function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// in the same way.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a GL
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/// buffer object of source data
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBO() method returning a GL
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/// buffer object of destination data
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param numPatchCoords number of patchCoords.
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///
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/// @param patchCoords array of locations to be evaluated.
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/// must have BindVBO() method returning an
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/// array of PatchCoord struct in VBO.
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///
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/// @param patchTable GLPatchTable or equivalent
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///
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/// @param instance cached compiled instance. Clients are supposed to
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/// pre-compile an instance of this class and provide
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/// to this function. If it's null the kernel still
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/// compute by instantiating on-demand kernel although
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/// it may cause a performance problem.
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///
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/// @param deviceContext not used in the GLXFB evaluator
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///
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template <typename SRC_BUFFER, typename DST_BUFFER,
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typename PATCHCOORD_BUFFER, typename PATCH_TABLE>
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static bool EvalPatches(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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int numPatchCoords,
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PATCHCOORD_BUFFER *patchCoords,
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PATCH_TABLE *patchTable,
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GLComputeEvaluator const *instance,
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void * deviceContext = NULL) {
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if (instance) {
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return instance->EvalPatches(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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numPatchCoords, patchCoords,
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patchTable);
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} else {
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// Create an instance on demand (slow)
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(void)deviceContext; // unused
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instance = Create(srcDesc, dstDesc,
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BufferDescriptor(),
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BufferDescriptor());
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if (instance) {
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bool r = instance->EvalPatches(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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numPatchCoords, patchCoords,
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patchTable);
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delete instance;
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return r;
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}
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return false;
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}
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}
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/// \brief Generic limit eval function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// in the same way.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a GL
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/// buffer object of source data
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBO() method returning a GL
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/// buffer object of destination data
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param duBuffer
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///
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/// @param duDesc
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///
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/// @param dvBuffer
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///
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/// @param dvDesc
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///
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/// @param numPatchCoords number of patchCoords.
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///
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/// @param patchCoords array of locations to be evaluated.
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/// must have BindVBO() method returning an
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/// array of PatchCoord struct in VBO.
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///
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/// @param patchTable GLPatchTable or equivalent
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///
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/// @param instance cached compiled instance. Clients are supposed to
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/// pre-compile an instance of this class and provide
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/// to this function. If it's null the kernel still
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/// compute by instantiating on-demand kernel although
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/// it may cause a performance problem.
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///
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/// @param deviceContext not used in the GLXFB evaluator
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///
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template <typename SRC_BUFFER, typename DST_BUFFER,
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typename PATCHCOORD_BUFFER, typename PATCH_TABLE>
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static bool EvalPatches(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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DST_BUFFER *duBuffer, BufferDescriptor const &duDesc,
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DST_BUFFER *dvBuffer, BufferDescriptor const &dvDesc,
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int numPatchCoords,
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PATCHCOORD_BUFFER *patchCoords,
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PATCH_TABLE *patchTable,
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GLComputeEvaluator const *instance,
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void * deviceContext = NULL) {
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if (instance) {
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return instance->EvalPatches(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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duBuffer, duDesc,
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dvBuffer, dvDesc,
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numPatchCoords, patchCoords,
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patchTable);
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} else {
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// Create an instance on demand (slow)
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(void)deviceContext; // unused
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instance = Create(srcDesc, dstDesc, duDesc, dvDesc);
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if (instance) {
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bool r = instance->EvalPatches(srcBuffer, srcDesc,
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dstBuffer, dstDesc,
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duBuffer, duDesc,
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dvBuffer, dvDesc,
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numPatchCoords, patchCoords,
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patchTable);
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delete instance;
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return r;
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}
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return false;
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}
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}
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/// \brief Generic limit eval function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// in the same way.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a
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/// const float pointer for read
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBOBuffer() method returning a
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/// float pointer for write
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param numPatchCoords number of patchCoords.
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///
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/// @param patchCoords array of locations to be evaluated.
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/// must have BindVBO() method returning an
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/// array of PatchCoord struct in VBO.
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///
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/// @param patchTable GLPatchTable or equivalent
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///
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template <typename SRC_BUFFER, typename DST_BUFFER,
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typename PATCHCOORD_BUFFER, typename PATCH_TABLE>
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bool EvalPatches(
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SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
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DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
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int numPatchCoords,
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PATCHCOORD_BUFFER *patchCoords,
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PATCH_TABLE *patchTable) const {
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return EvalPatches(srcBuffer->BindVBO(), srcDesc,
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dstBuffer->BindVBO(), dstDesc,
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0, BufferDescriptor(),
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0, BufferDescriptor(),
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numPatchCoords,
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patchCoords->BindVBO(),
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patchTable->GetPatchArrays(),
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patchTable->GetPatchIndexBuffer(),
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patchTable->GetPatchParamBuffer());
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}
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/// \brief Generic limit eval function with derivatives. This function has
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/// a same signature as other device kernels have so that it can be
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/// called in the same way.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindVBO() method returning a
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/// const float pointer for read
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindVBO() method returning a
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/// float pointer for write
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param duBuffer Output U-derivatives buffer
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/// must have BindVBO() method returning a
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/// float pointer for write
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///
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/// @param duDesc vertex buffer descriptor for the duBuffer
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///
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/// @param dvBuffer Output V-derivatives buffer
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/// must have BindVBO() method returning a
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/// float pointer for write
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///
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/// @param dvDesc vertex buffer descriptor for the dvBuffer
|
|
///
|
|
/// @param numPatchCoords number of patchCoords.
|
|
///
|
|
/// @param patchCoords array of locations to be evaluated.
|
|
///
|
|
/// @param patchTable GLPatchTable or equivalent
|
|
///
|
|
template <typename SRC_BUFFER, typename DST_BUFFER,
|
|
typename PATCHCOORD_BUFFER, typename PATCH_TABLE>
|
|
bool EvalPatches(
|
|
SRC_BUFFER *srcBuffer, BufferDescriptor const &srcDesc,
|
|
DST_BUFFER *dstBuffer, BufferDescriptor const &dstDesc,
|
|
DST_BUFFER *duBuffer, BufferDescriptor const &duDesc,
|
|
DST_BUFFER *dvBuffer, BufferDescriptor const &dvDesc,
|
|
int numPatchCoords,
|
|
PATCHCOORD_BUFFER *patchCoords,
|
|
PATCH_TABLE *patchTable) const {
|
|
|
|
return EvalPatches(srcBuffer->BindVBO(), srcDesc,
|
|
dstBuffer->BindVBO(), dstDesc,
|
|
duBuffer->BindVBO(), duDesc,
|
|
dvBuffer->BindVBO(), dvDesc,
|
|
numPatchCoords,
|
|
patchCoords->BindVBO(),
|
|
patchTable->GetPatchArrays(),
|
|
patchTable->GetPatchIndexBuffer(),
|
|
patchTable->GetPatchParamBuffer());
|
|
}
|
|
|
|
bool EvalPatches(GLuint srcBuffer, BufferDescriptor const &srcDesc,
|
|
GLuint dstBuffer, BufferDescriptor const &dstDesc,
|
|
GLuint duBuffer, BufferDescriptor const &duDesc,
|
|
GLuint dvBuffer, BufferDescriptor const &dvDesc,
|
|
int numPatchCoords,
|
|
GLuint patchCoordsBuffer,
|
|
const PatchArrayVector &patchArrays,
|
|
GLuint patchIndexBuffer,
|
|
GLuint patchParamsBuffer) const;
|
|
|
|
/// ----------------------------------------------------------------------
|
|
///
|
|
/// Other methods
|
|
///
|
|
/// ----------------------------------------------------------------------
|
|
|
|
/// Configure GLSL kernel. A valid GL context must be made current before
|
|
/// calling this function. Returns false if it fails to compile the kernel.
|
|
bool Compile(BufferDescriptor const &srcDesc,
|
|
BufferDescriptor const &dstDesc,
|
|
BufferDescriptor const &duDesc,
|
|
BufferDescriptor const &dvDesc);
|
|
|
|
/// Wait the dispatched kernel finishes.
|
|
static void Synchronize(void *deviceContext);
|
|
|
|
private:
|
|
struct _StencilKernel {
|
|
_StencilKernel();
|
|
~_StencilKernel();
|
|
bool Compile(BufferDescriptor const &srcDesc,
|
|
BufferDescriptor const &dstDesc,
|
|
BufferDescriptor const &duDesc,
|
|
BufferDescriptor const &dvDesc,
|
|
int workGroupSize);
|
|
GLuint program;
|
|
GLuint uniformStart;
|
|
GLuint uniformEnd;
|
|
GLuint uniformSrcOffset;
|
|
GLuint uniformDstOffset;
|
|
GLuint uniformDuDesc;
|
|
GLuint uniformDvDesc;
|
|
} _stencilKernel;
|
|
|
|
struct _PatchKernel {
|
|
_PatchKernel();
|
|
~_PatchKernel();
|
|
bool Compile(BufferDescriptor const &srcDesc,
|
|
BufferDescriptor const &dstDesc,
|
|
BufferDescriptor const &duDesc,
|
|
BufferDescriptor const &dvDesc,
|
|
int workGroupSize);
|
|
GLuint program;
|
|
GLuint uniformSrcOffset;
|
|
GLuint uniformDstOffset;
|
|
GLuint uniformPatchArray;
|
|
GLuint uniformDuDesc;
|
|
GLuint uniformDvDesc;
|
|
|
|
} _patchKernel;
|
|
|
|
int _workGroupSize;
|
|
};
|
|
|
|
} // end namespace Osd
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
using namespace OPENSUBDIV_VERSION;
|
|
|
|
} // end namespace OpenSubdiv
|
|
|
|
|
|
#endif // OPENSUBDIV3_OSD_GL_COMPUTE_EVALUATOR_H
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