Merge pull request opencv#26113 from FantasqueX:zlib-ng-2-2-1

Update zlib-ng to 2.2.1 opencv#26113

Release: https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.1
ARM diagnostics patch: zlib-ng/zlib-ng#1774

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

Author: FantasqueX

3rdparty/zlib-ng/CMakeLists.txt

@@ -1,4 +1,4 @@
-(C) 1995-2013 Jean-loup Gailly and Mark Adler
+(C) 1995-2024 Jean-loup Gailly and Mark Adler
 
 This software is provided 'as-is', without any express or implied
 warranty. In no event will the authors be held liable for any damages

3rdparty/zlib-ng/LICENSE.md

@@ -21,7 +21,6 @@ Features
 * Support for CPU intrinsics when available
   * Adler32 implementation using SSSE3, AVX2, AVX512, AVX512-VNNI, Neon, VMX & VSX
   * CRC32-B implementation using PCLMULQDQ, VPCLMULQDQ, ACLE, & IBM Z
-  * Hash table implementation using CRC32-C intrinsics on x86 and ARM
   * Slide hash implementations using SSE2, AVX2, ARMv6, Neon, VMX & VSX
   * Compare256 implementations using SSE2, AVX2, Neon, POWER9 & RVV
   * Inflate chunk copying using SSE2, SSSE3, AVX, Neon & VSX
@@ -95,20 +94,21 @@ make test
 Build Options
 -------------
 
-| CMake                    | configure                | Description                                                                           | Default |
-|:-------------------------|:-------------------------|:--------------------------------------------------------------------------------------|---------|
-| ZLIB_COMPAT              | --zlib-compat            | Compile with zlib compatible API                                                      | OFF     |
-| ZLIB_ENABLE_TESTS        |                          | Build test binaries                                                                   | ON      |
-| WITH_GZFILEOP            | --without-gzfileops      | Compile with support for gzFile related functions                                     | ON      |
-| WITH_OPTIM               | --without-optimizations  | Build with optimisations                                                              | ON      |
-| WITH_NEW_STRATEGIES      | --without-new-strategies | Use new strategies                                                                    | ON      |
-| WITH_NATIVE_INSTRUCTIONS |                          | Compiles with full instruction set supported on this host (gcc/clang -march=native)   | OFF     |
-| WITH_SANITIZER           |                          | Build with sanitizer (memory, address, undefined)                                     | OFF     |
-| WITH_GTEST               |                          | Build gtest_zlib                                                                      | ON      |
-| WITH_FUZZERS             |                          | Build test/fuzz                                                                       | OFF     |
-| WITH_BENCHMARKS          |                          | Build test/benchmarks                                                                 | OFF     |
-| WITH_MAINTAINER_WARNINGS |                          | Build with project maintainer warnings                                                | OFF     |
-| WITH_CODE_COVERAGE       |                          | Enable code coverage reporting                                                        | OFF     |
+| CMake                      | configure                | Description                                                                         | Default |
+|:---------------------------|:-------------------------|:------------------------------------------------------------------------------------|---------|
+| ZLIB_COMPAT                | --zlib-compat            | Compile with zlib compatible API                                                    | OFF     |
+| ZLIB_ENABLE_TESTS          |                          | Build test binaries                                                                 | ON      |
+| WITH_GZFILEOP              | --without-gzfileops      | Compile with support for gzFile related functions                                   | ON      |
+| WITH_OPTIM                 | --without-optimizations  | Build with optimisations                                                            | ON      |
+| WITH_NEW_STRATEGIES        | --without-new-strategies | Use new strategies                                                                  | ON      |
+| WITH_NATIVE_INSTRUCTIONS   |                          | Compiles with full instruction set supported on this host (gcc/clang -march=native) | OFF     |
+| WITH_RUNTIME_CPU_DETECTION |                          | Compiles with runtime CPU detection                                                 | ON      |
+| WITH_SANITIZER             |                          | Build with sanitizer (memory, address, undefined)                                   | OFF     |
+| WITH_GTEST                 |                          | Build gtest_zlib                                                                    | ON      |
+| WITH_FUZZERS               |                          | Build test/fuzz                                                                     | OFF     |
+| WITH_BENCHMARKS            |                          | Build test/benchmarks                                                               | OFF     |
+| WITH_MAINTAINER_WARNINGS   |                          | Build with project maintainer warnings                                              | OFF     |
+| WITH_CODE_COVERAGE         |                          | Enable code coverage reporting                                                      | OFF     |
 
 
 Install

3rdparty/zlib-ng/README.md

@@ -7,70 +7,24 @@
 #include "functable.h"
 #include "adler32_p.h"
 
-/* ========================================================================= */
-Z_INTERNAL uint32_t adler32_c(uint32_t adler, const uint8_t *buf, size_t len) {
-    uint32_t sum2;
-    unsigned n;
-
-    /* split Adler-32 into component sums */
-    sum2 = (adler >> 16) & 0xffff;
-    adler &= 0xffff;
-
-    /* in case user likes doing a byte at a time, keep it fast */
-    if (UNLIKELY(len == 1))
-        return adler32_len_1(adler, buf, sum2);
-
-    /* initial Adler-32 value (deferred check for len == 1 speed) */
-    if (UNLIKELY(buf == NULL))
-        return 1L;
-
-    /* in case short lengths are provided, keep it somewhat fast */
-    if (UNLIKELY(len < 16))
-        return adler32_len_16(adler, buf, len, sum2);
-
-    /* do length NMAX blocks -- requires just one modulo operation */
-    while (len >= NMAX) {
-        len -= NMAX;
-#ifdef UNROLL_MORE
-        n = NMAX / 16;          /* NMAX is divisible by 16 */
-#else
-        n = NMAX / 8;           /* NMAX is divisible by 8 */
-#endif
-        do {
-#ifdef UNROLL_MORE
-            DO16(adler, sum2, buf);          /* 16 sums unrolled */
-            buf += 16;
-#else
-            DO8(adler, sum2, buf, 0);         /* 8 sums unrolled */
-            buf += 8;
-#endif
-        } while (--n);
-        adler %= BASE;
-        sum2 %= BASE;
-    }
-
-    /* do remaining bytes (less than NMAX, still just one modulo) */
-    return adler32_len_64(adler, buf, len, sum2);
-}
-
 #ifdef ZLIB_COMPAT
 unsigned long Z_EXPORT PREFIX(adler32_z)(unsigned long adler, const unsigned char *buf, size_t len) {
-    return (unsigned long)functable.adler32((uint32_t)adler, buf, len);
+    return (unsigned long)FUNCTABLE_CALL(adler32)((uint32_t)adler, buf, len);
 }
 #else
 uint32_t Z_EXPORT PREFIX(adler32_z)(uint32_t adler, const unsigned char *buf, size_t len) {
-    return functable.adler32(adler, buf, len);
+    return FUNCTABLE_CALL(adler32)(adler, buf, len);
 }
 #endif
 
 /* ========================================================================= */
 #ifdef ZLIB_COMPAT
 unsigned long Z_EXPORT PREFIX(adler32)(unsigned long adler, const unsigned char *buf, unsigned int len) {
-    return (unsigned long)functable.adler32((uint32_t)adler, buf, len);
+    return (unsigned long)FUNCTABLE_CALL(adler32)((uint32_t)adler, buf, len);
 }
 #else
 uint32_t Z_EXPORT PREFIX(adler32)(uint32_t adler, const unsigned char *buf, uint32_t len) {
-    return functable.adler32(adler, buf, len);
+    return FUNCTABLE_CALL(adler32)(adler, buf, len);
 }
 #endif
 

3rdparty/zlib-ng/adler32.c

@@ -25,7 +25,6 @@ all: \
 	crc32_acle.o crc32_acle.lo \
 	slide_hash_neon.o slide_hash_neon.lo \
 	slide_hash_armv6.o slide_hash_armv6.lo \
-	insert_string_acle.o insert_string_acle.lo
 
 adler32_neon.o:
 	$(CC) $(CFLAGS) $(NEONFLAG) $(NOLTOFLAG) $(INCLUDES) -c -o $@ $(SRCDIR)/adler32_neon.c
@@ -69,12 +68,6 @@ slide_hash_armv6.o:
 slide_hash_armv6.lo:
 	$(CC) $(SFLAGS) $(ARMV6FLAG) $(NOLTOFLAG) $(INCLUDES) -c -o $@ $(SRCDIR)/slide_hash_armv6.c
 
-insert_string_acle.o:
-	$(CC) $(CFLAGS) $(ACLEFLAG) $(NOLTOFLAG) $(INCLUDES) -c -o $@ $(SRCDIR)/insert_string_acle.c
-
-insert_string_acle.lo:
-	$(CC) $(SFLAGS) $(ACLEFLAG) $(NOLTOFLAG) $(INCLUDES) -c -o $@ $(SRCDIR)/insert_string_acle.c
-
 mostlyclean: clean
 clean:
 	rm -f *.o *.lo *~

3rdparty/zlib-ng/adler32_fold.h

@@ -7,8 +7,8 @@
  */
 #ifdef ARM_NEON
 #include "neon_intrins.h"
-#include "../../zbuild.h"
-#include "../../adler32_p.h"
+#include "zbuild.h"
+#include "adler32_p.h"
 
 static void NEON_accum32(uint32_t *s, const uint8_t *buf, size_t len) {
     static const uint16_t ALIGNED_(16) taps[64] = {

3rdparty/zlib-ng/arch/.gitignore

@@ -1,4 +1,4 @@
-#include "../../zbuild.h"
+#include "zbuild.h"
 #include "arm_features.h"
 
 #if defined(__linux__) && defined(HAVE_SYS_AUXV_H)
@@ -11,6 +11,11 @@
 #  ifndef ID_AA64ISAR0_CRC32_VAL
 #    define ID_AA64ISAR0_CRC32_VAL ID_AA64ISAR0_CRC32
 #  endif
+#elif defined(__OpenBSD__) && defined(__aarch64__)
+#  include <machine/armreg.h>
+#  include <machine/cpu.h>
+#  include <sys/sysctl.h>
+#  include <sys/types.h>
 #elif defined(__APPLE__)
 #  if !defined(_DARWIN_C_SOURCE)
 #    define _DARWIN_C_SOURCE /* enable types aliases (eg u_int) */
@@ -30,6 +35,16 @@ static int arm_has_crc32() {
 #elif defined(__FreeBSD__) && defined(__aarch64__)
     return getenv("QEMU_EMULATING") == NULL
       && ID_AA64ISAR0_CRC32_VAL(READ_SPECIALREG(id_aa64isar0_el1)) >= ID_AA64ISAR0_CRC32_BASE;
+#elif defined(__OpenBSD__) && defined(__aarch64__)
+    int hascrc32 = 0;
+    int isar0_mib[] = { CTL_MACHDEP, CPU_ID_AA64ISAR0 };
+    uint64_t isar0 = 0;
+    size_t len = sizeof(isar0);
+    if (sysctl(isar0_mib, 2, &isar0, &len, NULL, 0) != -1) {
+      if (ID_AA64ISAR0_CRC32(isar0) >= ID_AA64ISAR0_CRC32_BASE)
+          hascrc32 = 1;
+    }
+    return hascrc32;
 #elif defined(__APPLE__)
     int hascrc32;
     size_t size = sizeof(hascrc32);

3rdparty/zlib-ng/arch/arm/Makefile.in

@@ -2,8 +2,8 @@
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
-#ifndef ARM_H_
-#define ARM_H_
+#ifndef ARM_FEATURES_H_
+#define ARM_FEATURES_H_
 
 struct arm_cpu_features {
     int has_simd;
@@ -13,4 +13,4 @@ struct arm_cpu_features {
 
 void Z_INTERNAL arm_check_features(struct arm_cpu_features *features);
 
-#endif /* ARM_H_ */
+#endif /* ARM_FEATURES_H_ */