560 lines
19 KiB
C++
560 lines
19 KiB
C++
// Copyright 2009-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#include "device.h"
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#include "../hash.h"
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#include "scene_triangle_mesh.h"
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#include "scene_user_geometry.h"
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#include "scene_instance.h"
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#include "scene_curves.h"
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#include "scene_subdiv_mesh.h"
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#include "../subdiv/tessellation_cache.h"
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#include "acceln.h"
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#include "geometry.h"
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#include "../geometry/cylinder.h"
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#include "../bvh/bvh4_factory.h"
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#include "../bvh/bvh8_factory.h"
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#include "../../common/tasking/taskscheduler.h"
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#include "../../common/sys/alloc.h"
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namespace embree
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{
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/*! some global variables that can be set via rtcSetParameter1i for debugging purposes */
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ssize_t Device::debug_int0 = 0;
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ssize_t Device::debug_int1 = 0;
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ssize_t Device::debug_int2 = 0;
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ssize_t Device::debug_int3 = 0;
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DECLARE_SYMBOL2(RayStreamFilterFuncs,rayStreamFilterFuncs);
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static MutexSys g_mutex;
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static std::map<Device*,size_t> g_cache_size_map;
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static std::map<Device*,size_t> g_num_threads_map;
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Device::Device (const char* cfg)
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{
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/* check that CPU supports lowest ISA */
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if (!hasISA(ISA)) {
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throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"CPU does not support " ISA_STR);
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}
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/* set default frequency level for detected CPU */
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switch (getCPUModel()) {
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case CPU::UNKNOWN: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::XEON_ICE_LAKE: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::CORE_ICE_LAKE: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::CORE_TIGER_LAKE: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE_COMET_LAKE: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE_CANNON_LAKE:frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE_KABY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::XEON_SKY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE_SKY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::XEON_BROADWELL: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::CORE_BROADWELL: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::XEON_HASWELL: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::CORE_HASWELL: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::XEON_IVY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::CORE_IVY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::SANDY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
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case CPU::NEHALEM: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE2: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::CORE1: frequency_level = FREQUENCY_SIMD128; break;
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case CPU::XEON_PHI_KNIGHTS_MILL : frequency_level = FREQUENCY_SIMD512; break;
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case CPU::XEON_PHI_KNIGHTS_LANDING: frequency_level = FREQUENCY_SIMD512; break;
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#if defined(__APPLE__)
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case CPU::ARM: frequency_level = FREQUENCY_SIMD256; break; // Apple M1 supports high throughput for SIMD4
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#else
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case CPU::ARM: frequency_level = FREQUENCY_SIMD128; break;
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#endif
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}
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/* initialize global state */
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#if defined(EMBREE_CONFIG)
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State::parseString(EMBREE_CONFIG);
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#endif
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State::parseString(cfg);
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State::verify();
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/* check whether selected ISA is supported by the HW, as the user could have forced an unsupported ISA */
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if (!checkISASupport()) {
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throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"CPU does not support selected ISA");
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}
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/*! do some internal tests */
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assert(isa::Cylinder::verify());
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/*! enable huge page support if desired */
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#if defined(__WIN32__)
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if (State::enable_selockmemoryprivilege)
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State::hugepages_success &= win_enable_selockmemoryprivilege(State::verbosity(3));
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#endif
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State::hugepages_success &= os_init(State::hugepages,State::verbosity(3));
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/*! set tessellation cache size */
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setCacheSize( State::tessellation_cache_size );
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/*! enable some floating point exceptions to catch bugs */
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if (State::float_exceptions)
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{
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int exceptions = _MM_MASK_MASK;
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//exceptions &= ~_MM_MASK_INVALID;
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exceptions &= ~_MM_MASK_DENORM;
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exceptions &= ~_MM_MASK_DIV_ZERO;
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//exceptions &= ~_MM_MASK_OVERFLOW;
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//exceptions &= ~_MM_MASK_UNDERFLOW;
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//exceptions &= ~_MM_MASK_INEXACT;
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_MM_SET_EXCEPTION_MASK(exceptions);
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}
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/* print info header */
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if (State::verbosity(1))
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print();
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if (State::verbosity(2))
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State::print();
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/* register all algorithms */
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bvh4_factory = make_unique(new BVH4Factory(enabled_builder_cpu_features, enabled_cpu_features));
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#if defined(EMBREE_TARGET_SIMD8)
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bvh8_factory = make_unique(new BVH8Factory(enabled_builder_cpu_features, enabled_cpu_features));
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#endif
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/* setup tasking system */
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initTaskingSystem(numThreads);
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/* ray stream SOA to AOS conversion */
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#if defined(EMBREE_RAY_PACKETS)
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RayStreamFilterFuncsType rayStreamFilterFuncs;
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SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512(enabled_cpu_features,rayStreamFilterFuncs);
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rayStreamFilters = rayStreamFilterFuncs();
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#endif
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}
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Device::~Device ()
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{
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setCacheSize(0);
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exitTaskingSystem();
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}
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std::string getEnabledTargets()
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{
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std::string v;
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#if defined(EMBREE_TARGET_SSE2)
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v += "SSE2 ";
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#endif
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#if defined(EMBREE_TARGET_SSE42)
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v += "SSE4.2 ";
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#endif
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#if defined(EMBREE_TARGET_AVX)
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v += "AVX ";
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#endif
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#if defined(EMBREE_TARGET_AVX2)
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v += "AVX2 ";
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#endif
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#if defined(EMBREE_TARGET_AVX512)
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v += "AVX512 ";
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#endif
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return v;
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}
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std::string getEmbreeFeatures()
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{
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std::string v;
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#if defined(EMBREE_RAY_MASK)
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v += "raymasks ";
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#endif
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#if defined (EMBREE_BACKFACE_CULLING)
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v += "backfaceculling ";
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#endif
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#if defined (EMBREE_BACKFACE_CULLING_CURVES)
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v += "backfacecullingcurves ";
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#endif
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#if defined(EMBREE_FILTER_FUNCTION)
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v += "intersection_filter ";
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#endif
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#if defined (EMBREE_COMPACT_POLYS)
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v += "compact_polys ";
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#endif
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return v;
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}
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void Device::print()
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{
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const int cpu_features = getCPUFeatures();
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std::cout << std::endl;
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std::cout << "Embree Ray Tracing Kernels " << RTC_VERSION_STRING << " (" << RTC_HASH << ")" << std::endl;
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std::cout << " Compiler : " << getCompilerName() << std::endl;
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std::cout << " Build : ";
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#if defined(DEBUG)
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std::cout << "Debug " << std::endl;
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#else
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std::cout << "Release " << std::endl;
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#endif
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std::cout << " Platform : " << getPlatformName() << std::endl;
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std::cout << " CPU : " << stringOfCPUModel(getCPUModel()) << " (" << getCPUVendor() << ")" << std::endl;
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std::cout << " Threads : " << getNumberOfLogicalThreads() << std::endl;
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std::cout << " ISA : " << stringOfCPUFeatures(cpu_features) << std::endl;
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std::cout << " Targets : " << supportedTargetList(cpu_features) << std::endl;
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const bool hasFTZ = _mm_getcsr() & _MM_FLUSH_ZERO_ON;
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const bool hasDAZ = _mm_getcsr() & _MM_DENORMALS_ZERO_ON;
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std::cout << " MXCSR : " << "FTZ=" << hasFTZ << ", DAZ=" << hasDAZ << std::endl;
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std::cout << " Config" << std::endl;
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std::cout << " Threads : " << (numThreads ? toString(numThreads) : std::string("default")) << std::endl;
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std::cout << " ISA : " << stringOfCPUFeatures(enabled_cpu_features) << std::endl;
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std::cout << " Targets : " << supportedTargetList(enabled_cpu_features) << " (supported)" << std::endl;
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std::cout << " " << getEnabledTargets() << " (compile time enabled)" << std::endl;
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std::cout << " Features: " << getEmbreeFeatures() << std::endl;
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std::cout << " Tasking : ";
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#if defined(TASKING_TBB)
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std::cout << "TBB" << TBB_VERSION_MAJOR << "." << TBB_VERSION_MINOR << " ";
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#if TBB_INTERFACE_VERSION >= 12002
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std::cout << "TBB_header_interface_" << TBB_INTERFACE_VERSION << " TBB_lib_interface_" << TBB_runtime_interface_version() << " ";
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#else
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std::cout << "TBB_header_interface_" << TBB_INTERFACE_VERSION << " TBB_lib_interface_" << tbb::TBB_runtime_interface_version() << " ";
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#endif
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#endif
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#if defined(TASKING_INTERNAL)
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std::cout << "internal_tasking_system ";
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#endif
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#if defined(TASKING_PPL)
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std::cout << "PPL ";
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#endif
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std::cout << std::endl;
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/* check of FTZ and DAZ flags are set in CSR */
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if (!hasFTZ || !hasDAZ)
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{
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#if !defined(_DEBUG)
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if (State::verbosity(1))
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#endif
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{
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std::cout << std::endl;
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std::cout << "================================================================================" << std::endl;
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std::cout << " WARNING: \"Flush to Zero\" or \"Denormals are Zero\" mode not enabled " << std::endl
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<< " in the MXCSR control and status register. This can have a severe " << std::endl
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<< " performance impact. Please enable these modes for each application " << std::endl
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<< " thread the following way:" << std::endl
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<< std::endl
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<< " #include \"xmmintrin.h\"" << std::endl
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<< " #include \"pmmintrin.h\"" << std::endl
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<< std::endl
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<< " _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);" << std::endl
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<< " _MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);" << std::endl;
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std::cout << "================================================================================" << std::endl;
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std::cout << std::endl;
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}
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}
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std::cout << std::endl;
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}
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void Device::setDeviceErrorCode(RTCError error)
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{
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RTCError* stored_error = errorHandler.error();
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if (*stored_error == RTC_ERROR_NONE)
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*stored_error = error;
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}
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RTCError Device::getDeviceErrorCode()
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{
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RTCError* stored_error = errorHandler.error();
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RTCError error = *stored_error;
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*stored_error = RTC_ERROR_NONE;
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return error;
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}
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void Device::setThreadErrorCode(RTCError error)
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{
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RTCError* stored_error = g_errorHandler.error();
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if (*stored_error == RTC_ERROR_NONE)
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*stored_error = error;
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}
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RTCError Device::getThreadErrorCode()
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{
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RTCError* stored_error = g_errorHandler.error();
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RTCError error = *stored_error;
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*stored_error = RTC_ERROR_NONE;
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return error;
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}
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void Device::process_error(Device* device, RTCError error, const char* str)
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{
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/* store global error code when device construction failed */
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if (!device)
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return setThreadErrorCode(error);
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/* print error when in verbose mode */
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if (device->verbosity(1))
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{
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switch (error) {
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case RTC_ERROR_NONE : std::cerr << "Embree: No error"; break;
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case RTC_ERROR_UNKNOWN : std::cerr << "Embree: Unknown error"; break;
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case RTC_ERROR_INVALID_ARGUMENT : std::cerr << "Embree: Invalid argument"; break;
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case RTC_ERROR_INVALID_OPERATION: std::cerr << "Embree: Invalid operation"; break;
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case RTC_ERROR_OUT_OF_MEMORY : std::cerr << "Embree: Out of memory"; break;
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case RTC_ERROR_UNSUPPORTED_CPU : std::cerr << "Embree: Unsupported CPU"; break;
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default : std::cerr << "Embree: Invalid error code"; break;
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};
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if (str) std::cerr << ", (" << str << ")";
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std::cerr << std::endl;
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}
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/* call user specified error callback */
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if (device->error_function)
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device->error_function(device->error_function_userptr,error,str);
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/* record error code */
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device->setDeviceErrorCode(error);
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}
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void Device::memoryMonitor(ssize_t bytes, bool post)
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{
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if (State::memory_monitor_function && bytes != 0) {
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if (!State::memory_monitor_function(State::memory_monitor_userptr,bytes,post)) {
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if (bytes > 0) { // only throw exception when we allocate memory to never throw inside a destructor
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throw_RTCError(RTC_ERROR_OUT_OF_MEMORY,"memory monitor forced termination");
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}
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}
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}
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}
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size_t getMaxNumThreads()
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{
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size_t maxNumThreads = 0;
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for (std::map<Device*,size_t>::iterator i=g_num_threads_map.begin(); i != g_num_threads_map.end(); i++)
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maxNumThreads = max(maxNumThreads, (*i).second);
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if (maxNumThreads == 0)
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maxNumThreads = std::numeric_limits<size_t>::max();
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return maxNumThreads;
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}
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size_t getMaxCacheSize()
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{
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size_t maxCacheSize = 0;
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for (std::map<Device*,size_t>::iterator i=g_cache_size_map.begin(); i!= g_cache_size_map.end(); i++)
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maxCacheSize = max(maxCacheSize, (*i).second);
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return maxCacheSize;
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}
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void Device::setCacheSize(size_t bytes)
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{
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#if defined(EMBREE_GEOMETRY_SUBDIVISION)
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Lock<MutexSys> lock(g_mutex);
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if (bytes == 0) g_cache_size_map.erase(this);
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else g_cache_size_map[this] = bytes;
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size_t maxCacheSize = getMaxCacheSize();
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resizeTessellationCache(maxCacheSize);
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#endif
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}
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void Device::initTaskingSystem(size_t numThreads)
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{
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Lock<MutexSys> lock(g_mutex);
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if (numThreads == 0)
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g_num_threads_map[this] = std::numeric_limits<size_t>::max();
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else
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g_num_threads_map[this] = numThreads;
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/* create task scheduler */
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size_t maxNumThreads = getMaxNumThreads();
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TaskScheduler::create(maxNumThreads,State::set_affinity,State::start_threads);
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#if USE_TASK_ARENA
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const size_t nThreads = min(maxNumThreads,TaskScheduler::threadCount());
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const size_t uThreads = min(max(numUserThreads,(size_t)1),nThreads);
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arena = make_unique(new tbb::task_arena((int)nThreads,(unsigned int)uThreads));
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#endif
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}
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void Device::exitTaskingSystem()
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{
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Lock<MutexSys> lock(g_mutex);
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g_num_threads_map.erase(this);
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/* terminate tasking system */
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if (g_num_threads_map.size() == 0) {
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TaskScheduler::destroy();
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}
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/* or configure new number of threads */
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else {
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size_t maxNumThreads = getMaxNumThreads();
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TaskScheduler::create(maxNumThreads,State::set_affinity,State::start_threads);
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}
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#if USE_TASK_ARENA
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arena.reset();
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#endif
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}
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void Device::setProperty(const RTCDeviceProperty prop, ssize_t val)
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{
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/* hidden internal properties */
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switch ((size_t)prop)
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{
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case 1000000: debug_int0 = val; return;
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case 1000001: debug_int1 = val; return;
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case 1000002: debug_int2 = val; return;
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case 1000003: debug_int3 = val; return;
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}
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throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown writable property");
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}
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ssize_t Device::getProperty(const RTCDeviceProperty prop)
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{
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size_t iprop = (size_t)prop;
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/* get name of internal regression test */
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if (iprop >= 2000000 && iprop < 3000000)
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{
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RegressionTest* test = getRegressionTest(iprop-2000000);
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if (test) return (ssize_t) test->name.c_str();
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else return 0;
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}
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/* run internal regression test */
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if (iprop >= 3000000 && iprop < 4000000)
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{
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RegressionTest* test = getRegressionTest(iprop-3000000);
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if (test) return test->run();
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else return 0;
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}
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/* documented properties */
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switch (prop)
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{
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case RTC_DEVICE_PROPERTY_VERSION_MAJOR: return RTC_VERSION_MAJOR;
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case RTC_DEVICE_PROPERTY_VERSION_MINOR: return RTC_VERSION_MINOR;
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case RTC_DEVICE_PROPERTY_VERSION_PATCH: return RTC_VERSION_PATCH;
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case RTC_DEVICE_PROPERTY_VERSION : return RTC_VERSION;
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#if defined(EMBREE_TARGET_SIMD4) && defined(EMBREE_RAY_PACKETS)
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case RTC_DEVICE_PROPERTY_NATIVE_RAY4_SUPPORTED: return hasISA(SSE2);
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#else
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case RTC_DEVICE_PROPERTY_NATIVE_RAY4_SUPPORTED: return 0;
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#endif
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#if defined(EMBREE_TARGET_SIMD8) && defined(EMBREE_RAY_PACKETS)
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case RTC_DEVICE_PROPERTY_NATIVE_RAY8_SUPPORTED: return hasISA(AVX);
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#else
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case RTC_DEVICE_PROPERTY_NATIVE_RAY8_SUPPORTED: return 0;
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#endif
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#if defined(EMBREE_TARGET_SIMD16) && defined(EMBREE_RAY_PACKETS)
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case RTC_DEVICE_PROPERTY_NATIVE_RAY16_SUPPORTED: return hasISA(AVX512);
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#else
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case RTC_DEVICE_PROPERTY_NATIVE_RAY16_SUPPORTED: return 0;
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#endif
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#if defined(EMBREE_RAY_PACKETS)
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case RTC_DEVICE_PROPERTY_RAY_STREAM_SUPPORTED: return 1;
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|
#else
|
|
case RTC_DEVICE_PROPERTY_RAY_STREAM_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_RAY_MASK)
|
|
case RTC_DEVICE_PROPERTY_RAY_MASK_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_RAY_MASK_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_BACKFACE_CULLING)
|
|
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_ENABLED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_ENABLED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_BACKFACE_CULLING_CURVES)
|
|
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_CURVES_ENABLED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_CURVES_ENABLED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_COMPACT_POLYS)
|
|
case RTC_DEVICE_PROPERTY_COMPACT_POLYS_ENABLED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_COMPACT_POLYS_ENABLED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_FILTER_FUNCTION)
|
|
case RTC_DEVICE_PROPERTY_FILTER_FUNCTION_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_FILTER_FUNCTION_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_IGNORE_INVALID_RAYS)
|
|
case RTC_DEVICE_PROPERTY_IGNORE_INVALID_RAYS_ENABLED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_IGNORE_INVALID_RAYS_ENABLED: return 0;
|
|
#endif
|
|
|
|
#if defined(TASKING_INTERNAL)
|
|
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 0;
|
|
#endif
|
|
|
|
#if defined(TASKING_TBB)
|
|
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 1;
|
|
#endif
|
|
|
|
#if defined(TASKING_PPL)
|
|
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 2;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_TRIANGLE)
|
|
case RTC_DEVICE_PROPERTY_TRIANGLE_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_TRIANGLE_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_QUAD)
|
|
case RTC_DEVICE_PROPERTY_QUAD_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_QUAD_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_CURVE)
|
|
case RTC_DEVICE_PROPERTY_CURVE_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_CURVE_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_SUBDIVISION)
|
|
case RTC_DEVICE_PROPERTY_SUBDIVISION_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_SUBDIVISION_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_USER)
|
|
case RTC_DEVICE_PROPERTY_USER_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_USER_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(EMBREE_GEOMETRY_POINT)
|
|
case RTC_DEVICE_PROPERTY_POINT_GEOMETRY_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_POINT_GEOMETRY_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
#if defined(TASKING_PPL)
|
|
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 0;
|
|
#elif defined(TASKING_TBB) && (TBB_INTERFACE_VERSION_MAJOR < 8)
|
|
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 0;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 1;
|
|
#endif
|
|
|
|
#if defined(TASKING_TBB) && TASKING_TBB_USE_TASK_ISOLATION
|
|
case RTC_DEVICE_PROPERTY_PARALLEL_COMMIT_SUPPORTED: return 1;
|
|
#else
|
|
case RTC_DEVICE_PROPERTY_PARALLEL_COMMIT_SUPPORTED: return 0;
|
|
#endif
|
|
|
|
default: throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown readable property"); break;
|
|
};
|
|
}
|
|
}
|