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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.
*/
#ifndef __UTIL_DEBUG_H__
#define __UTIL_DEBUG_H__
#include <cassert>
#include <iostream>
#include "util/util_static_assert.h"
CCL_NAMESPACE_BEGIN
/* Global storage for all sort of flags used to fine-tune behavior of particular
* areas for the development purposes, without officially exposing settings to
* the interface.
*/
class DebugFlags {
public:
/* Descriptor of CPU feature-set to be used. */
struct CPU {
CPU();
/* Reset flags to their defaults. */
void reset();
/* Flags describing which instructions sets are allowed for use. */
bool avx2;
bool avx;
bool sse41;
bool sse3;
bool sse2;
/* Whether QBVH usage is allowed or not. */
bool qbvh;
/* Whether split kernel is used */
bool split_kernel;
};
/* Descriptor of CUDA feature-set to be used. */
struct CUDA {
CUDA();
/* Reset flags to their defaults. */
void reset();
/* Whether adaptive feature based runtime compile is enabled or not.
* Requires the CUDA Toolkit and only works on Linux atm. */
bool adaptive_compile;
/* Whether split kernel is used */
bool split_kernel;
};
/* Descriptor of OpenCL feature-set to be used. */
struct OpenCL {
OpenCL();
/* Reset flags to their defaults. */
void reset();
/* Available device types.
* Only gives a hint which devices to let user to choose from, does not
* try to use any sort of optimal device or so.
*/
enum DeviceType {
/* None of OpenCL devices will be used. */
DEVICE_NONE,
/* All OpenCL devices will be used. */
DEVICE_ALL,
/* Default system OpenCL device will be used. */
DEVICE_DEFAULT,
/* Host processor will be used. */
DEVICE_CPU,
/* GPU devices will be used. */
DEVICE_GPU,
/* Dedicated OpenCL accelerator device will be used. */
DEVICE_ACCELERATOR,
};
/* Available kernel types. */
enum KernelType {
/* Do automated guess which kernel to use, based on the officially
* supported GPUs and such.
*/
KERNEL_DEFAULT,
/* Force mega kernel to be used. */
KERNEL_MEGA,
/* Force split kernel to be used. */
KERNEL_SPLIT,
};
/* Requested device type. */
DeviceType device_type;
/* Requested kernel type. */
KernelType kernel_type;
/* Use debug version of the kernel. */
bool debug;
/* Use single program */
bool single_program;
};
/* Get instance of debug flags registry. */
static DebugFlags& get()
{
static DebugFlags instance;
return instance;
}
/* Reset flags to their defaults. */
void reset();
/* Requested CPU flags. */
CPU cpu;
/* Requested CUDA flags. */
CUDA cuda;
/* Requested OpenCL flags. */
OpenCL opencl;
private:
DebugFlags();
#if (__cplusplus > 199711L)
public:
explicit DebugFlags(DebugFlags const& /*other*/) = delete;
void operator=(DebugFlags const& /*other*/) = delete;
#else
private:
explicit DebugFlags(DebugFlags const& /*other*/);
void operator=(DebugFlags const& /*other*/);
#endif
};
typedef DebugFlags& DebugFlagsRef;
typedef const DebugFlags& DebugFlagsConstRef;
inline DebugFlags& DebugFlags() {
return DebugFlags::get();
}
std::ostream& operator <<(std::ostream &os,
DebugFlagsConstRef debug_flags);
CCL_NAMESPACE_END
#endif /* __UTIL_DEBUG_H__ */
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