opencv

Commit Graph

Author	SHA1	Message	Date
Braedy Kuzma	9bf8b496d6	Use commonly supported instruction mnemonic.	5 years ago
Braedy Kuzma	d4120dd2fe	Disambiguate vecpopcnt for (u)dword2.	5 years ago
Vitaly Tuzov	d134ec54c5	Extend tests for v_check_any and v_check_all intrinsics	5 years ago
ChipKerchner	288e6f9c07	Improve vectorization in the 'norm' functions	5 years ago
ChipKerchner	70b883cfeb	Fix macro bug with v_reduce_min and v_reduce_max for chars in VSX	5 years ago
Vitaly Tuzov	1b40528e1a	Fix for AVX2 implementation of v_check_any(), v_check_all() intrinsics	5 years ago
Alexander Alekhin	d7409604b5	core: handle empty Mat in Mat_ assignment operators	5 years ago
Kazuma Furuhashi	ccecd3405a	Merge pull request #15007 from 284km:fixatypo s/last_occurence/last_occurrence/	5 years ago
Alexander Alekhin	8a0b93bc4d	core: update fastmath.hpp	5 years ago
Alexander Alekhin	8b1fe8f6e0	core: fix stat SIMD code	5 years ago
Zyrin	869ea22f34	Use std::move in Mat_<T> move constructors	5 years ago
Zyrin	8ef8088686	Fix stack overflow on gcc with c++17 (#15343 )	5 years ago
Matthias Gehre	0e92ac2af7	modules/core/src/ocl.cpp: Fix dangling pointer Detected by clang trunk: ``` opencv/modules/core/src/ocl.cpp:4337:37: warning: object backing the pointer will be destroyed at the end of the full-expression [-Wdangling] CV_OCL_CHECK_RESULT(retval, cv::format("clCreateBuffer(capacity=%lld) => %p", (long long int)entry.capacity_, (void)entry.clBuffer_).c_str()); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ opencv/modules/core/src/ocl.cpp:193:42: note: expanded from macro 'CV_OCL_CHECK_RESULT' if (0) { const char msg_ = (msg); CV_UNUSED(msg_); /* ensure const char* type (cv::String without c_str()) */ } \ ``` because `cv::format` yields a temporary std::string, and thus `msg_` points to a destroyed buffer.	5 years ago
Paul E. Murphy	33fb253a66	core: vectorize dotProd_32s Use 4x FMA chains to sum on SIMD 128 FP64 targets. On x86 this showed about 1.4x improvement. For PPC, do a full multiply (32x32->64b), convert to DP then accumulate. This may be slightly less precise for some inputs. But is 1.5x faster than the above which is about 1.5x than the FMA above for ~2.5x speedup.	5 years ago
luz.paz	fcc7d8dd4e	Fix modules/ typos Found using `codespell -q 3 -S ./3rdparty -L activ,amin,ang,atleast,childs,dof,endwhile,halfs,hist,iff,nd,od,uint` backporting of commit: `ec43292e1e`	5 years ago
luz.paz	ec43292e1e	Fix modules/ typos Found using `codespell -q 3 -S ./3rdparty -L activ,amin,ang,atleast,childs,dof,endwhile,halfs,hist,iff,nd,od,uint`	5 years ago
Alexander Alekhin	32772a5436	3.4: backported changes from 'master' branch	5 years ago
Alexander Alekhin	15b8a8d935	build: eliminate warnings with Xcode 10.3	5 years ago
Hugo Lindström	935067ee05	Merge pull request #15265 from hugolm84:wince-armv7-supports-neon * WINCE 8.0 requires ARMv7 Thumb2 and thus have NEON instructions * Only add NEON if on _ARM_	5 years ago
Alexander Alekhin	5ef548a985	cmake: update initialization	6 years ago
Paul E. Murphy	f38a61c66d	fast_math: implement optimized PPC routines Implement cvRound using inline asm. No compiler support exists today to properly optimize this. This results in about a 4x speedup over the default rounding. Likewise, simplify the growing number of rounding function overloads. For P9 enabled targets, utilize the classification testing instruction to test for Inf/Nan values. Operation speedup is about 1.2x for FP32, and 1.5x for FP64 operands. For P8 targets, fallback to the GCC nan inline. It provides a 1.1/1.4x improvement for FP32/FP64 arguments.	6 years ago
Paul E. Murphy	3f92bcc11a	fast_math: selectively use GCC rounding builtins when available Add a new macro definition OPENCV_USE_FASTMATH_GCC_BUILTINS to enable usage of GCC inline math functions, if available and requested by the user. Likewise, enable it for POWER. This is nearly always a substantial improvement over using integer manipulation as most operations can be done in several instructions with no branching. The result is a 1.5-1.8x speedup in the ceil/floor operations. 1. As tested with AT 12.0-1 (GCC 8.3.1) compiler on P9 LE.	6 years ago
Paul E. Murphy	b2135be594	fast_math: add extra perf/unit tests Add a basic sanity test to verify the rounding functions work as expected. Likewise, extend the rounding performance test to cover the additional float -> int fast math functions.	6 years ago
Victor Romero	987bb2ca61	Fix build for UWP backport of commit: `f18cbd036a`	6 years ago
Paul E. Murphy	1031b7f4bc	hal: vsx: further optimize v_signmask Use the quadword bit permutation instruction to creatively move the sign bits to create the mask. Note that values above 127 will result in 0.	6 years ago
Thang Tran	d659eb9327	core: fixed error message to avoid confusion	6 years ago
Victor Romero	f18cbd036a	Merge pull request #15207 from vicroms:fix-uwp-build Fix build for UWP (#15207) * Guard non-WinRT calls to fix UWP build * Remove unnecessary guard for WinRT	6 years ago
Hugo Lindström	03fe1cb7fc	Support building shared libraries on WINCE.	6 years ago
Maksim Shabunin	6d5ac67681	Restored IPP call reduction	6 years ago
berak	4d3989817c	java: fix Mat.toString() for higher dimensions	6 years ago
Alexander Alekhin	ddbd10c001	release: OpenCV 4.1.1 OpenCV 4.1.1	6 years ago
Alexander Alekhin	4a7ca5a291	OpenCV version++ (3.4.7) OpenCV 3.4.7	6 years ago
Chip Kerchner	0db4fb1835	Merge pull request #15136 from ChipKerchner:dotProd_unroll * Unroll multiply and add instructions in dotProd_32f - 35% faster. * Eliminate unnecessary v_reduce_sum instructions.	6 years ago
Alexander Alekhin	5691d998ea	core(persistence): added null ptr checks	6 years ago
Hugo Lindström	2ee00e7f7d	Merge pull request #15059 from hugolm84:improved-support-for-wince * Improve support for Windows Embedded Compact * Remove redundant set(WINCE true) and format CMake	6 years ago
Alexander Alekhin	8bac8b513c	core: support SIMD intrinsics in user code	6 years ago
Alexander Alekhin	d4501f08b8	core(persistence): disable base64 tests due missing encoders	6 years ago
Alexander Alekhin	4ea8526e9f	core(persistence): fix writeRaw() / readRaw() struct support - writeRaw(): support structs - readRaw(): 'len' is buffer limit in bytes (documentation is fixed)	6 years ago
Alexander Alekhin	c3b838b738	core(persistence): struct storage layout without alignment gaps	6 years ago
Hugo Lindström	245c256b1c	Support compiliation for <=VS13	6 years ago
Alexander Alekhin	db211446f3	OpenCV version '-openvino'	6 years ago
Vitaly Tuzov	9befb7a1d7	Merge pull request #14916 from terfendail:wsignmask_deprecated * Avoid using v_signmask universal intrinsic and mark it as deprecated * Renamed v_find_negative to v_scan_forward	6 years ago
Alexander Alekhin	44836c7f78	core: evaluate CV_Error() parameters during static scans	6 years ago
Stefan Brüns	e9a2e665b2	Explicitly default operator= for Vec<T, n> Due to the explicitly declared copy constructor Vec<T, n>::Vec(Vec <T,n>&) GCC 9 warns if there is no assignment operator, as having one typically requires the other (rule-of-three, constructor/desctructor/assginment). As the values are just a plain array the default assignment operator does the right thing. Tell the compiler explicitly to default it. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>	6 years ago
Rostislav Vasilikhin	f2f600f807	fixed multi instrumentations	6 years ago
Alexander Alekhin	e8a703a71d	core(intrin): v_load_low() workaround for aarch64+clang	6 years ago
Alexander Alekhin	4a6888ccf6	imgproc: fix kmeans() call from grabCut()	6 years ago
Alexander Alekhin	442bc80cd7	pre: OpenCV 4.1.1 (version++)	6 years ago
Alexander Alekhin	779f59da6b	pre: OpenCV 3.4.7 (version++)	6 years ago
Alexander Alekhin	5ac55fc132	core: eliminate AVX512 build warnings from MSVS2017 and GCC8 -O1 mode	6 years ago

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4807 Commits (7a790d0d353bcbe48f1d62fb917c787ab4185846)