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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.
*/
#ifdef WITH_METAL
# include "device/metal/device.h"
# include "device/metal/device_impl.h"
#endif
#include "util/debug.h"
#include "util/set.h"
#include "util/system.h"
CCL_NAMESPACE_BEGIN
#ifdef WITH_METAL
Device *device_metal_create(const DeviceInfo &info, Stats &stats, Profiler &profiler)
{
return new MetalDevice(info, stats, profiler);
}
bool device_metal_init()
{
return true;
}
static int device_metal_get_num_devices_safe(uint32_t *num_devices)
{
*num_devices = MTLCopyAllDevices().count;
return 0;
}
void device_metal_info(vector<DeviceInfo> &devices)
{
uint32_t num_devices = 0;
device_metal_get_num_devices_safe(&num_devices);
if (num_devices == 0) {
return;
}
vector<MetalPlatformDevice> usable_devices;
MetalInfo::get_usable_devices(&usable_devices);
/* Devices are numbered consecutively across platforms. */
set<string> unique_ids;
int device_index = 0;
for (MetalPlatformDevice &device : usable_devices) {
/* Compute unique ID for persistent user preferences. */
const string &device_name = device.device_name;
string id = string("METAL_") + device_name;
/* Hardware ID might not be unique, add device number in that case. */
if (unique_ids.find(id) != unique_ids.end()) {
id += string_printf("_ID_%d", num_devices);
}
unique_ids.insert(id);
/* Create DeviceInfo. */
DeviceInfo info;
info.type = DEVICE_METAL;
info.description = string_remove_trademark(string(device_name));
/* Ensure unique naming on Apple Silicon / SoC devices which return the same string for CPU and
* GPU */
if (info.description == system_cpu_brand_string()) {
info.description += " (GPU)";
}
info.num = device_index;
/* We don't know if it's used for display, but assume it is. */
info.display_device = true;
info.denoisers = DENOISER_NONE;
info.id = id;
devices.push_back(info);
device_index++;
}
}
string device_metal_capabilities()
{
string result = "";
string error_msg = "";
uint32_t num_devices = 0;
assert(device_metal_get_num_devices_safe(&num_devices));
if (num_devices == 0) {
return "No Metal devices found\n";
}
result += string_printf("Number of devices: %u\n", num_devices);
NSArray<id<MTLDevice>> *allDevices = MTLCopyAllDevices();
for (id<MTLDevice> device in allDevices) {
result += string_printf("\t\tDevice: %s\n", [device.name UTF8String]);
}
return result;
}
#else
Device *device_metal_create(const DeviceInfo &info, Stats &stats, Profiler &profiler)
{
return nullptr;
}
bool device_metal_init()
{
return false;
}
void device_metal_info(vector<DeviceInfo> &devices)
{
}
string device_metal_capabilities()
{
return "";
}
#endif
CCL_NAMESPACE_END
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