67 lines
2.7 KiB
Plaintext
67 lines
2.7 KiB
Plaintext
/*******************************************************************************
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* Copyright (c) 2020 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://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 License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author sgazeos@gmail.com
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//
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#include <ops/declarable/helpers/compression.h>
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#include <loops/type_conversions.h>
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#include <helpers/DebugHelper.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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void decodeBitmap(sd::LaunchContext* context, const NDArray* input, NDArray* output) {
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auto stream = context->getCudaStream();
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NDArray::prepareSpecialUse({output}, {input});
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dim3 launchDims(512, 512, 16384);
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auto xType = output->dataType();
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BUILD_SINGLE_SELECTOR(xType, cudaDecodeBitmapGeneric, (launchDims, stream, input->specialBuffer(), output->lengthOf(), output->specialBuffer()), FLOAT_TYPES);
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sd::DebugHelper::checkErrorCode(stream, "decodeBitmapFloat(...) failed");
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NDArray::registerSpecialUse({output}, {input});
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}
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Nd4jLong encodeBitmap(sd::LaunchContext* context, NDArray* input, NDArray* output, float threshold) {
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auto stream = LaunchContext::defaultContext()->getCudaStream();
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int *resultPointer = reinterpret_cast<int *>(LaunchContext::defaultContext()->getScalarPointer());
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int *reductionPointer = reinterpret_cast<int *>(LaunchContext::defaultContext()->getReductionPointer());
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// nullify result pointer before use
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resultPointer[0] = 0;
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NDArray::prepareSpecialUse({},{output, input});
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dim3 launchDims(512, 512, 32768);
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auto xType = input->dataType();
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BUILD_SINGLE_SELECTOR(xType, cudaEncodeBitmapGeneric,
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(launchDims, stream, input->specialBuffer(), input->lengthOf(), reinterpret_cast<int*>(output->specialBuffer()), resultPointer, reductionPointer, threshold),
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FLOAT_TYPES);
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sd::DebugHelper::checkErrorCode(stream, "encodeBitmapFloat(...) failed");
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Nd4jLong dZ = (Nd4jLong) resultPointer[0];
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resultPointer[0] = 0;
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NDArray::registerSpecialUse({output, input}, {});
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return dZ;
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}
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}
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}
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}
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