67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the 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 License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This class lets calculators allocate GpuBuffers of various sizes, caching
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// and reusing them as needed. It does so by automatically creating and using
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// platform-specific buffer pools for the requested sizes.
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//
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// This class is not meant to be used directly by calculators, but is instead
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// used by GlCalculatorHelper to allocate buffers.
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#ifndef MEDIAPIPE_GPU_CV_PIXEL_BUFFER_POOL_WRAPPER_H_
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#define MEDIAPIPE_GPU_CV_PIXEL_BUFFER_POOL_WRAPPER_H_
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#include "CoreFoundation/CFBase.h"
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#include "mediapipe/gpu/cv_texture_cache_manager.h"
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#include "mediapipe/gpu/gpu_buffer_format.h"
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#include "mediapipe/gpu/multi_pool.h"
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#include "mediapipe/gpu/pixel_buffer_pool_util.h"
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#include "mediapipe/objc/CFHolder.h"
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namespace mediapipe {
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class CvPixelBufferPoolWrapper {
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public:
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CvPixelBufferPoolWrapper(int width, int height, GpuBufferFormat format,
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CFTimeInterval maxAge,
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CvTextureCacheManager* texture_caches);
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static std::shared_ptr<CvPixelBufferPoolWrapper> Create(
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const internal::GpuBufferSpec& spec, const MultiPoolOptions& options,
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CvTextureCacheManager* texture_caches = nullptr) {
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return std::make_shared<CvPixelBufferPoolWrapper>(
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spec.width, spec.height, spec.format, options.max_inactive_buffer_age,
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texture_caches);
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}
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CFHolder<CVPixelBufferRef> GetBuffer();
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int GetBufferCount() const { return count_; }
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std::string GetDebugString() const;
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void Flush();
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static CFHolder<CVPixelBufferRef> CreateBufferWithoutPool(
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const internal::GpuBufferSpec& spec);
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private:
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CFHolder<CVPixelBufferPoolRef> pool_;
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int count_ = 0;
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CvTextureCacheManager* texture_caches_;
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};
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} // namespace mediapipe
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#endif // MEDIAPIPE_GPU_CV_PIXEL_BUFFER_POOL_WRAPPER_H_
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