wehub-resource-sync
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/* Copyright 2023 The TensorFlow Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
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 TENSORFLOW_LITE_DELEGATES_GPU_ASYNC_BUFFERS_H_
|
|
#define TENSORFLOW_LITE_DELEGATES_GPU_ASYNC_BUFFERS_H_
|
|
|
|
#if defined(__ANDROID__)
|
|
#include <android/hardware_buffer.h>
|
|
#endif // __ANDROID__
|
|
|
|
#include <GLES3/gl31.h>
|
|
|
|
#include "absl/status/status.h"
|
|
#include "tensorflow/lite/delegates/gpu/api.h"
|
|
#include "tensorflow/lite/delegates/gpu/common/data_type.h"
|
|
|
|
extern "C" typedef struct AHardwareBuffer AHardwareBuffer;
|
|
|
|
namespace tflite {
|
|
namespace gpu {
|
|
|
|
class AsyncBuffer {
|
|
private:
|
|
int bytes_; // Number of bytes in the buffer
|
|
bool valid_ = false; // Have we mapped to SSBO already
|
|
GLuint opengl_buffer_ = GL_INVALID_INDEX; // SSBO buffer id
|
|
AHardwareBuffer* ahwb_ = nullptr;
|
|
|
|
// Where the AHWB<->SSBO mapping occurs
|
|
absl::Status MapAHardwareBufferToGlBuffer();
|
|
// Allocate SSBO, call the AHWB<->SSBO mapping; fail gracefully if needed.
|
|
absl::Status AllocateOpenGlBuffer();
|
|
|
|
public:
|
|
explicit AsyncBuffer(TensorObjectDef tensor_def, AHardwareBuffer* ahwb) {
|
|
bytes_ = NumElements(tensor_def) * SizeOf(tensor_def.object_def.data_type);
|
|
ahwb_ = ahwb;
|
|
}
|
|
// Map the AHWB (from class constructor) to an SSBO id
|
|
absl::Status GetOpenGlBuffer(GLuint& buffer_ref);
|
|
};
|
|
|
|
} // namespace gpu
|
|
} // namespace tflite
|
|
|
|
#endif // TENSORFLOW_LITE_DELEGATES_GPU_ASYNC_BUFFERS_H_
|