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/*
* Copyright 2021 Blender Foundation
*
* 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.
*/
#pragma once
#ifdef WITH_METAL
# include <Metal/Metal.h>
# include <string>
# include "device/metal/device.h"
# include "device/metal/kernel.h"
# include "device/queue.h"
# include "util/thread.h"
CCL_NAMESPACE_BEGIN
enum MetalGPUVendor {
METAL_GPU_UNKNOWN = 0,
METAL_GPU_APPLE = 1,
METAL_GPU_AMD = 2,
METAL_GPU_INTEL = 3,
};
/* Contains static Metal helper functions. */
struct MetalInfo {
static vector<id<MTLDevice>> const &get_usable_devices();
static MetalGPUVendor get_vendor_from_device_name(string const &device_name);
};
/* Pool of MTLBuffers whose lifetime is linked to a single MTLCommandBuffer */
class MetalBufferPool {
struct MetalBufferListEntry {
MetalBufferListEntry(id<MTLBuffer> buffer, id<MTLCommandBuffer> command_buffer)
: buffer(buffer), command_buffer(command_buffer)
{
}
MetalBufferListEntry() = delete;
id<MTLBuffer> buffer;
id<MTLCommandBuffer> command_buffer;
};
std::vector<MetalBufferListEntry> buffer_free_list;
std::vector<MetalBufferListEntry> buffer_in_use_list;
thread_mutex buffer_mutex;
size_t total_temp_mem_size = 0;
public:
MetalBufferPool() = default;
~MetalBufferPool();
id<MTLBuffer> get_buffer(id<MTLDevice> device,
id<MTLCommandBuffer> command_buffer,
NSUInteger length,
MTLResourceOptions options,
const void *pointer,
Stats &stats);
void process_command_buffer_completion(id<MTLCommandBuffer> command_buffer);
};
CCL_NAMESPACE_END
#endif /* WITH_METAL */
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