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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 "bvh/bvh_params.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:
/* Use static BVH in viewport, to match final render exactly. */
bool viewport_static_bvh;
bool running_inside_blender;
/* 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;
/* Check functions to see whether instructions up to the given one
* are allowed for use.
*/
bool has_avx2()
{
return has_avx() && avx2;
}
bool has_avx()
{
return has_sse41() && avx;
}
bool has_sse41()
{
return has_sse3() && sse41;
}
bool has_sse3()
{
return has_sse2() && sse3;
}
bool has_sse2()
{
return sse2;
}
/* Requested BVH size.
*
* Rendering will use widest possible BVH which is below or equal
* this one.
*/
BVHLayout bvh_layout;
/* 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;
/* Use debug version of the kernel. */
bool debug;
/* TODO(mai): Currently this is only for OpenCL, but we should have it implemented for all
* devices. */
/* Artificial memory limit in bytes (0 if disabled). */
size_t mem_limit;
};
/* 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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