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OpenSubdiv/opensubdiv/osd/glslComputeController.cpp

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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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//
#include "../osd/glslComputeController.h"
#include "../osd/glslComputeContext.h"
#include "../osd/glslKernelBundle.h"
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#include "../osd/opengl.h"
#include <algorithm>
#include <cassert>
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namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
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OsdGLSLComputeController::OsdGLSLComputeController() {
}
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OsdGLSLComputeController::~OsdGLSLComputeController() {
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for (std::vector<OsdGLSLComputeKernelBundle*>::iterator it =
_kernelRegistry.begin();
it != _kernelRegistry.end(); ++it) {
delete *it;
}
}
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void
OsdGLSLComputeController::Synchronize() {
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glFinish();
}
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OsdGLSLComputeKernelBundle *
OsdGLSLComputeController::getKernels(
OsdVertexBufferDescriptor const &vertexDesc,
OsdVertexBufferDescriptor const &varyingDesc) {
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std::vector<OsdGLSLComputeKernelBundle*>::iterator it =
std::find_if(_kernelRegistry.begin(), _kernelRegistry.end(),
OsdGLSLComputeKernelBundle::Match(vertexDesc,
varyingDesc));
if (it != _kernelRegistry.end()) {
return *it;
} else {
OsdGLSLComputeKernelBundle *kernelBundle =
new OsdGLSLComputeKernelBundle();
_kernelRegistry.push_back(kernelBundle);
kernelBundle->Compile(vertexDesc, varyingDesc);
return kernelBundle;
}
}
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void
OsdGLSLComputeController::bindBufferAndProgram() {
if (_currentBindState.vertexBuffer)
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, _currentBindState.vertexBuffer);
if (_currentBindState.varyingBuffer)
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, _currentBindState.varyingBuffer);
_currentBindState.kernelBundle->UseProgram(_currentBindState.vertexDesc.offset,
_currentBindState.varyingDesc.offset);
glMemoryBarrier(GL_TEXTURE_FETCH_BARRIER_BIT);
}
void
OsdGLSLComputeController::unbindBufferAndProgram() {
glMemoryBarrier(GL_TEXTURE_FETCH_BARRIER_BIT);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, 0);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, 0);
glUseProgram(0);
}
void
OsdGLSLComputeController::ApplyBilinearFaceVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyBilinearFaceVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyBilinearEdgeVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyBilinearEdgeVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyBilinearVertexVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyBilinearVertexVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkFaceVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkFaceVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkQuadFaceVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkQuadFaceVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkTriQuadFaceVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkTriQuadFaceVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkEdgeVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkEdgeVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkVertexVerticesKernelB(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkVertexVerticesKernelB(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyCatmarkVertexVerticesKernelA1(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkVertexVerticesKernelA(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd(), false);
}
void
OsdGLSLComputeController::ApplyCatmarkVertexVerticesKernelA2(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyCatmarkVertexVerticesKernelA(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd(), true);
}
void
OsdGLSLComputeController::ApplyLoopEdgeVerticesKernel(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyLoopEdgeVerticesKernel(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyLoopVertexVerticesKernelB(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyLoopVertexVerticesKernelB(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd());
}
void
OsdGLSLComputeController::ApplyLoopVertexVerticesKernelA1(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyLoopVertexVerticesKernelA(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd(), false);
}
void
OsdGLSLComputeController::ApplyLoopVertexVerticesKernelA2(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
_currentBindState.kernelBundle->ApplyLoopVertexVerticesKernelA(
batch.GetVertexOffset(), batch.GetTableOffset(),
batch.GetStart(), batch.GetEnd(), true);
}
void
OsdGLSLComputeController::ApplyVertexEdits(
FarKernelBatch const &batch, OsdGLSLComputeContext const *context) const {
assert(context);
const OsdGLSLComputeHEditTable * edit = context->GetEditTable(batch.GetTableIndex());
assert(edit);
context->BindEditShaderStorageBuffers(batch.GetTableIndex());
int primvarOffset = edit->GetPrimvarOffset();
int primvarWidth = edit->GetPrimvarWidth();
if (edit->GetOperation() == FarVertexEdit::Add) {
_currentBindState.kernelBundle->ApplyEditAdd(primvarOffset,
primvarWidth,
batch.GetVertexOffset(),
batch.GetTableOffset(),
batch.GetStart(),
batch.GetEnd());
} else {
// XXX: edit SET is not implemented yet.
}
context->UnbindEditShaderStorageBuffers();
}
} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv