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/*
* Copyright 2011-2013 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.
*/
#include "blender/blender_device.h"
#include "blender/blender_util.h"
CCL_NAMESPACE_BEGIN
int blender_device_threads(BL::Scene& b_scene)
{
BL::RenderSettings b_r = b_scene.render();
if(b_r.threads_mode() == BL::RenderSettings::threads_mode_FIXED)
return b_r.threads();
else
return 0;
}
DeviceInfo blender_device_info(BL::Preferences& b_preferences, BL::Scene& b_scene, bool background)
{
PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles");
/* Default to CPU device. */
DeviceInfo device = Device::available_devices(DEVICE_MASK_CPU).front();
if(get_enum(cscene, "device") == 2) {
/* Find network device. */
vector<DeviceInfo> devices = Device::available_devices(DEVICE_MASK_NETWORK);
if(!devices.empty()) {
device = devices.front();
}
}
else if(get_enum(cscene, "device") == 1) {
/* Find cycles preferences. */
PointerRNA cpreferences;
BL::Preferences::addons_iterator b_addon_iter;
for(b_preferences.addons.begin(b_addon_iter); b_addon_iter != b_preferences.addons.end(); ++b_addon_iter) {
if(b_addon_iter->module() == "cycles") {
cpreferences = b_addon_iter->preferences().ptr;
break;
}
}
/* Test if we are using GPU devices. */
enum ComputeDevice {
COMPUTE_DEVICE_CPU = 0,
COMPUTE_DEVICE_CUDA = 1,
COMPUTE_DEVICE_OPENCL = 2,
COMPUTE_DEVICE_NUM = 3,
};
ComputeDevice compute_device = (ComputeDevice)get_enum(cpreferences,
"compute_device_type",
COMPUTE_DEVICE_NUM,
COMPUTE_DEVICE_CPU);
if(compute_device != COMPUTE_DEVICE_CPU) {
/* Query GPU devices with matching types. */
uint mask = DEVICE_MASK_CPU;
if(compute_device == COMPUTE_DEVICE_CUDA) {
mask |= DEVICE_MASK_CUDA;
}
else if(compute_device == COMPUTE_DEVICE_OPENCL) {
mask |= DEVICE_MASK_OPENCL;
}
vector<DeviceInfo> devices = Device::available_devices(mask);
/* Match device preferences and available devices. */
vector<DeviceInfo> used_devices;
RNA_BEGIN(&cpreferences, device, "devices") {
if(get_boolean(device, "use")) {
string id = get_string(device, "id");
foreach(DeviceInfo& info, devices) {
if(info.id == id) {
used_devices.push_back(info);
break;
}
}
}
} RNA_END;
if(!used_devices.empty()) {
int threads = blender_device_threads(b_scene);
device = Device::get_multi_device(used_devices,
threads,
background);
}
/* Else keep using the CPU device that was set before. */
}
}
return device;
}
CCL_NAMESPACE_END
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