From patchwork Fri Apr 10 07:05:05 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Jinfeng (CN)" X-Patchwork-Id: 85791 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2DBF1F364DB for ; Fri, 10 Apr 2026 07:05:24 +0000 (UTC) Received: from mx0b-0064b401.pphosted.com (mx0b-0064b401.pphosted.com [205.220.178.238]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.150636.1775804720184849362 for ; Fri, 10 Apr 2026 00:05:20 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@windriver.com header.s=PPS06212021 header.b=s0P43rxN; spf=permerror, err=parse error for token &{10 18 %{ir}.%{v}.%{d}.spf.has.pphosted.com}: invalid domain name (domain: windriver.com, ip: 205.220.178.238, mailfrom: prvs=8560f54642=jinfeng.wang.cn@windriver.com) Received: from pps.filterd (m0250811.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 63A4uSWg1889323 for ; Fri, 10 Apr 2026 07:05:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=windriver.com; h=content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=PPS06212021; bh=wOkthnVHnTDHtB58hgBx7pAEdmREM0mtNAXdguxoqKc=; b=s0P43rxNzPtA AIWAUznodXz5NBYj3Gb5v3zCd2+vk66bBwT1pq3tGuShwed8YMpSsDbUdRz8zWvc /EkXO+ndnmc2uCEWvH/ZexskZQvFbHzwndLLvsG4+DikZC0IiE+OEtz8HYzAnoDs gsjEFOc8b0dBH0D+7aCJy8kZZOaFFl+BnAiNXKprLmnEJBjaK2bRIJIQl/gUqWkR JDuEC7mvIqse6cqlCs2EWKJTipHhcqOLlGWLTD/aGn0RPWTfzQ+DEG+C0D7VXBnP jtJVOsOXS5JnI5e5ZSFi3L9JxgSwdyL1hrcY1kPU7RoZGfBRRr9MF3oPWPw7e8DW PLsHGYrctg== Received: from ala-exchng01.corp.ad.wrs.com (ala-exchng01.wrs.com [128.224.246.36]) by mx0a-0064b401.pphosted.com (PPS) with ESMTPS id 4dcmrqn78a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 10 Apr 2026 07:05:18 +0000 (GMT) Received: from ala-exchng01.corp.ad.wrs.com (10.11.224.121) by ala-exchng01.corp.ad.wrs.com (10.11.224.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.61; Fri, 10 Apr 2026 00:05:17 -0700 Received: from pek-lpg-core4.wrs.com (10.11.232.110) by ala-exchng01.corp.ad.wrs.com (10.11.224.121) with Microsoft SMTP Server id 15.1.2507.61 via Frontend Transport; Fri, 10 Apr 2026 00:05:16 -0700 From: To: Subject: [meta-oe][scarthgap][PATCH v2 08/11] hdf5: fix CVE-2025-2308 Date: Fri, 10 Apr 2026 15:05:05 +0800 Message-ID: <20260410070508.1104455-9-jinfeng.wang.cn@windriver.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260410070508.1104455-1-jinfeng.wang.cn@windriver.com> References: <20260410070508.1104455-1-jinfeng.wang.cn@windriver.com> MIME-Version: 1.0 X-Authority-Analysis: v=2.4 cv=RPCD2Yi+ c=1 sm=1 tr=0 ts=69d8a12f cx=c_pps a=AbJuCvi4Y3V6hpbCNWx0WA==:117 a=AbJuCvi4Y3V6hpbCNWx0WA==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=bi6dqmuHe4P4UrxVR6um:22 a=klDOsUkWDRETUCZYPvoE:22 a=PYnjg3YJAAAA:8 a=NEAV23lmAAAA:8 a=a4ZxNzwYAAAA:8 a=t7CeM3EgAAAA:8 a=lhiV5AYGl4gicwPNKAwA:9 a=ye-Csp9iz97B4shCVKju:22 a=FdTzh2GWekK77mhwV6Dw:22 X-Proofpoint-ORIG-GUID: AW6N_lFv5yjDm_BTBptre-5fOHYtG7UR X-Proofpoint-GUID: AW6N_lFv5yjDm_BTBptre-5fOHYtG7UR X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDEwMDA2MyBTYWx0ZWRfXxj6CsSSQ4Ner 1YzLQKnahNetCfHnlaStnZTbCznDyaMq9XdrLiUNSMrUOtc57wd35sxJPkgk0wFMOUfB66x03la JNFvJEKaYZbtuW/OwQ5DAtpiMlc7WyLumn7wLpD7A/USMcrn6IfPtiYaVlKyAUxw3Y/FpzyOKwZ yKmjyWOd2I1HXwrSO1SSMKXWrC8iOnTEJc5xWhwU4PeJ3tRK6w018oCvUZUS3ucQGEEpEfe7VtW bbl07ZdAvuEHA1Ujp/1rg/vxlEzbPFShRuKyCKkye3c0z3IC5kGDpfGqa0KZixp+pBSWFge+Cx9 iQXWcLVHjeRSmLoF/ry+pTqaeyDO6LLu0wKEy7O6XaKdup11qIgOeOt09wx5apbN2uzGE8iOpVM JDDkpgcHSKQIaoc4sJUdAZ/TqsSHqGTtQo6rNWPVLpogTHcDOHDFexYEHqWfUGsM7+ep/sbE58e gwikv49WYYJRUzfkXFg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-10_02,2026-04-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 phishscore=0 adultscore=0 spamscore=0 clxscore=1015 bulkscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604100063 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Fri, 10 Apr 2026 07:05:24 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/126230 From: Libo Chen According to [1], A vulnerability, which was classified as critical, was found in HDF5 1.14.6. This affects the function H5Z__scaleoffset_decompress_one_byte of the component Scale-Offset Filter. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release. Backport patch [2] from upstream to fix CVE-2025-2308 [1] https://nvd.nist.gov/vuln/detail/CVE-2025-2308 [2] https://github.com/HDFGroup/hdf5/commit/2ce7fdc4cf147d280aa6d49686297faacc250e40 Signed-off-by: Libo Chen Signed-off-by: Jinfeng Wang --- .../hdf5/files/CVE-2025-2308.patch | 2120 +++++++++++++++++ meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb | 1 + 2 files changed, 2121 insertions(+) create mode 100644 meta-oe/recipes-support/hdf5/files/CVE-2025-2308.patch diff --git a/meta-oe/recipes-support/hdf5/files/CVE-2025-2308.patch b/meta-oe/recipes-support/hdf5/files/CVE-2025-2308.patch new file mode 100644 index 0000000000..13b04bf8a1 --- /dev/null +++ b/meta-oe/recipes-support/hdf5/files/CVE-2025-2308.patch @@ -0,0 +1,2120 @@ +From cbce4c2ecf6f5557605890eec125ecfaa4371131 Mon Sep 17 00:00:00 2001 +From: Libo Chen +Date: Fri, 30 Jan 2026 16:43:04 +0800 +Subject: [PATCH] Fix CVE-2025-2308 (#5960) + +A malformed file can cause the scale-offset filter to have too little input data causing a heap buffer overflow. Additional checks on the maximum buffer length are required during the decompression. + +This PR fixes CVE-2025-2308. + +CVE: CVE-2025-2308 + +Upstream-Status: Backport [https://github.com/HDFGroup/hdf5/commit/2ce7fdc4cf147d280aa6d49686297faacc250e40] + +Signed-off-by: Libo Chen +--- + src/H5Zscaleoffset.c | 177 ++-- + src/H5Zscaleoffset.c.orig | 1781 +++++++++++++++++++++++++++++++++++++ + 2 files changed, 1886 insertions(+), 72 deletions(-) + create mode 100644 src/H5Zscaleoffset.c.orig + +diff --git a/src/H5Zscaleoffset.c b/src/H5Zscaleoffset.c +index fbf12d6..8355b13 100644 +--- a/src/H5Zscaleoffset.c ++++ b/src/H5Zscaleoffset.c +@@ -69,21 +69,22 @@ static herr_t H5Z__scaleoffset_precompress_fd(void *data, unsigned d_nelmts, enu + static herr_t H5Z__scaleoffset_postdecompress_fd(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, + unsigned filavail, const unsigned cd_values[], + uint32_t minbits, unsigned long long minval, double D_val); +-static void H5Z__scaleoffset_next_byte(size_t *j, unsigned *buf_len); +-static void H5Z__scaleoffset_decompress_one_byte(unsigned char *data, size_t data_offset, unsigned k, +- unsigned begin_i, const unsigned char *buffer, size_t *j, +- unsigned *buf_len, parms_atomic p, unsigned dtype_len); ++static void H5Z__scaleoffset_next_byte(size_t *j, unsigned *bits_to_fill); ++static herr_t H5Z__scaleoffset_decompress_one_byte(unsigned char *data, size_t data_offset, unsigned k, ++ unsigned begin_i, const unsigned char *buffer, ++ size_t buf_size, size_t *j, unsigned *bits_to_fill, ++ parms_atomic p, unsigned dtype_len); + static void H5Z__scaleoffset_compress_one_byte(const unsigned char *data, size_t data_offset, unsigned k, + unsigned begin_i, unsigned char *buffer, size_t *j, +- unsigned *buf_len, parms_atomic p, unsigned dtype_len); +-static void H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, +- unsigned char *buffer, size_t *j, unsigned *buf_len, +- parms_atomic p); ++ unsigned *bits_to_fill, parms_atomic p, unsigned dtype_len); ++static herr_t H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, ++ unsigned char *buffer, size_t buf_size, size_t *j, ++ unsigned *bits_to_fill, parms_atomic p); + static void H5Z__scaleoffset_compress_one_atomic(unsigned char *data, size_t data_offset, +- unsigned char *buffer, size_t *j, unsigned *buf_len, ++ unsigned char *buffer, size_t *j, unsigned *bits_to_fill, + parms_atomic p); +-static void H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, +- parms_atomic p); ++static herr_t H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, ++ size_t buf_size, parms_atomic p); + static void H5Z__scaleoffset_compress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, + size_t buffer_size, parms_atomic p); + +@@ -1261,8 +1262,11 @@ H5Z__filter_scaleoffset(unsigned flags, size_t cd_nelmts, const unsigned cd_valu + } + + /* decompress the buffer if minbits not equal to zero */ +- if (minbits != 0) +- H5Z__scaleoffset_decompress(outbuf, d_nelmts, (unsigned char *)(*buf) + buf_offset, p); ++ if (minbits != 0) { ++ if (H5Z__scaleoffset_decompress(outbuf, d_nelmts, (unsigned char *)(*buf) + buf_offset, ++ *buf_size - buf_offset, p)) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Scaleoffset decompression failed"); ++ } + else { + /* fill value is not defined and all data elements have the same value */ + for (i = 0; i < size_out; i++) +@@ -1603,55 +1607,69 @@ done: + } + + static void +-H5Z__scaleoffset_next_byte(size_t *j, unsigned *buf_len) ++H5Z__scaleoffset_next_byte(size_t *j, unsigned *bits_to_fill) + { + ++(*j); +- *buf_len = 8 * sizeof(unsigned char); ++ *bits_to_fill = 8 * sizeof(unsigned char); + } + +-static void ++static herr_t + H5Z__scaleoffset_decompress_one_byte(unsigned char *data, size_t data_offset, unsigned k, unsigned begin_i, +- const unsigned char *buffer, size_t *j, unsigned *buf_len, +- parms_atomic p, unsigned dtype_len) ++ const unsigned char *buffer, size_t buf_size, size_t *j, ++ unsigned *bits_to_fill, parms_atomic p, unsigned dtype_len) + { +- unsigned dat_len; /* dat_len is the number of bits to be copied in each data byte */ +- unsigned char val; /* value to be copied in each data byte */ ++ unsigned bits_to_copy; /* bits_to_copy is the number of bits to be copied in each data byte */ ++ unsigned char val; /* value to be copied in each data byte */ ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ if (*j >= buf_size) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Buffer too short"); + + /* initialize value and bits of unsigned char to be copied */ + val = buffer[*j]; + if (k == begin_i) +- dat_len = 8 - (dtype_len - p.minbits) % 8; ++ bits_to_copy = 8 - (dtype_len - p.minbits) % 8; + else +- dat_len = 8; ++ bits_to_copy = 8; + +- if (*buf_len > dat_len) { +- data[data_offset + k] = +- (unsigned char)((unsigned)(val >> (*buf_len - dat_len)) & (unsigned)(~((unsigned)~0 << dat_len))); +- *buf_len -= dat_len; ++ if (*bits_to_fill > bits_to_copy) { ++ data[data_offset + k] = (unsigned char)((unsigned)(val >> (*bits_to_fill - bits_to_copy)) & ++ (unsigned)(~((unsigned)~0 << bits_to_copy))); ++ *bits_to_fill -= bits_to_copy; + } /* end if */ + else { + data[data_offset + k] = +- (unsigned char)((val & ~((unsigned)(~0) << *buf_len)) << (dat_len - *buf_len)); +- dat_len -= *buf_len; +- H5Z__scaleoffset_next_byte(j, buf_len); +- if (dat_len == 0) +- return; ++ (unsigned char)((val & ~((unsigned)(~0) << *bits_to_fill)) << (bits_to_copy - *bits_to_fill)); ++ bits_to_copy -= *bits_to_fill; ++ H5Z__scaleoffset_next_byte(j, bits_to_fill); ++ if (bits_to_copy == 0) ++ goto done; ++ else if (*j >= buf_size) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Buffer too short"); + + val = buffer[*j]; +- data[data_offset + k] |= +- (unsigned char)((unsigned)(val >> (*buf_len - dat_len)) & ~((unsigned)(~0) << dat_len)); +- *buf_len -= dat_len; ++ data[data_offset + k] |= (unsigned char)((unsigned)(val >> (*bits_to_fill - bits_to_copy)) & ++ ~((unsigned)(~0) << bits_to_copy)); ++ *bits_to_fill -= bits_to_copy; + } /* end else */ ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) + } + +-static void ++static herr_t + H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, unsigned char *buffer, +- size_t *j, unsigned *buf_len, parms_atomic p) ++ size_t buf_size, size_t *j, unsigned *bits_to_fill, parms_atomic p) + { + /* begin_i: the index of byte having first significant bit */ + unsigned begin_i; + unsigned dtype_len; + int k; ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE + + assert(p.minbits > 0); + +@@ -1661,8 +1679,9 @@ H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, + begin_i = p.size - 1 - (dtype_len - p.minbits) / 8; + + for (k = (int)begin_i; k >= 0; k--) +- H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, +- p, dtype_len); ++ if (H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, ++ buf_size, j, bits_to_fill, p, dtype_len)) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Atomic decompression failed"); + } + else { /* big endian */ + assert(p.mem_order == H5Z_SCALEOFFSET_ORDER_BE); +@@ -1670,67 +1689,81 @@ H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, + begin_i = (dtype_len - p.minbits) / 8; + + for (k = (int)begin_i; k <= (int)(p.size - 1); k++) +- H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, +- p, dtype_len); ++ if (H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, ++ buf_size, j, bits_to_fill, p, dtype_len)) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Atomic decompression failed"); + } ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) + } + +-static void +-H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, parms_atomic p) ++static herr_t ++H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, size_t buf_size, ++ parms_atomic p) + { + /* i: index of data, j: index of buffer, +- buf_len: number of bits to be filled in current byte */ ++ bits_to_fill: number of bits to be filled in current byte */ + size_t i, j; +- unsigned buf_len; ++ unsigned bits_to_fill; ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE + + /* must initialize to zeros */ + for (i = 0; i < d_nelmts * (size_t)p.size; i++) + data[i] = 0; + + /* initialization before the loop */ +- j = 0; +- buf_len = sizeof(unsigned char) * 8; ++ j = 0; ++ bits_to_fill = sizeof(unsigned char) * 8; + + /* decompress */ + for (i = 0; i < d_nelmts; i++) +- H5Z__scaleoffset_decompress_one_atomic(data, i * p.size, buffer, &j, &buf_len, p); ++ if (H5Z__scaleoffset_decompress_one_atomic(data, i * p.size, buffer, buf_size, &j, &bits_to_fill, p)) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, 0, "Scaleoffset decompression failed"); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) + } + + static void + H5Z__scaleoffset_compress_one_byte(const unsigned char *data, size_t data_offset, unsigned k, +- unsigned begin_i, unsigned char *buffer, size_t *j, unsigned *buf_len, ++ unsigned begin_i, unsigned char *buffer, size_t *j, unsigned *bits_to_fill, + parms_atomic p, unsigned dtype_len) + { +- unsigned dat_len; /* dat_len is the number of bits to be copied in each data byte */ +- unsigned char val; /* value to be copied in each data byte */ ++ unsigned bits_to_copy; /* bits_to_copy is the number of bits to be copied in each data byte */ ++ unsigned char val; /* value to be copied in each data byte */ + + /* initialize value and bits of unsigned char to be copied */ + val = data[data_offset + k]; + if (k == begin_i) +- dat_len = 8 - (dtype_len - p.minbits) % 8; ++ bits_to_copy = 8 - (dtype_len - p.minbits) % 8; + else +- dat_len = 8; ++ bits_to_copy = 8; + +- if (*buf_len > dat_len) { +- buffer[*j] |= (unsigned char)((val & ~((unsigned)(~0) << dat_len)) << (*buf_len - dat_len)); +- *buf_len -= dat_len; ++ if (*bits_to_fill > bits_to_copy) { ++ buffer[*j] |= ++ (unsigned char)((val & ~((unsigned)(~0) << bits_to_copy)) << (*bits_to_fill - bits_to_copy)); ++ *bits_to_fill -= bits_to_copy; + } + else { +- buffer[*j] |= +- (unsigned char)((unsigned)(val >> (dat_len - *buf_len)) & ~((unsigned)(~0) << *buf_len)); +- dat_len -= *buf_len; +- H5Z__scaleoffset_next_byte(j, buf_len); +- if (dat_len == 0) ++ buffer[*j] |= (unsigned char)((unsigned)(val >> (bits_to_copy - *bits_to_fill)) & ++ ~((unsigned)(~0) << *bits_to_fill)); ++ bits_to_copy -= *bits_to_fill; ++ H5Z__scaleoffset_next_byte(j, bits_to_fill); ++ if (bits_to_copy == 0) + return; + +- buffer[*j] = (unsigned char)((val & ~((unsigned)(~0) << dat_len)) << (*buf_len - dat_len)); +- *buf_len -= dat_len; ++ buffer[*j] = ++ (unsigned char)((val & ~((unsigned)(~0) << bits_to_copy)) << (*bits_to_fill - bits_to_copy)); ++ *bits_to_fill -= bits_to_copy; + } /* end else */ + } + + static void + H5Z__scaleoffset_compress_one_atomic(unsigned char *data, size_t data_offset, unsigned char *buffer, +- size_t *j, unsigned *buf_len, parms_atomic p) ++ size_t *j, unsigned *bits_to_fill, parms_atomic p) + { + /* begin_i: the index of byte having first significant bit */ + unsigned begin_i; +@@ -1745,16 +1778,16 @@ H5Z__scaleoffset_compress_one_atomic(unsigned char *data, size_t data_offset, un + begin_i = p.size - 1 - (dtype_len - p.minbits) / 8; + + for (k = (int)begin_i; k >= 0; k--) +- H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, p, +- dtype_len); ++ H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, ++ bits_to_fill, p, dtype_len); + } + else { /* big endian */ + assert(p.mem_order == H5Z_SCALEOFFSET_ORDER_BE); + begin_i = (dtype_len - p.minbits) / 8; + + for (k = (int)begin_i; k <= (int)(p.size - 1); k++) +- H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, p, +- dtype_len); ++ H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, ++ bits_to_fill, p, dtype_len); + } + } + +@@ -1763,19 +1796,19 @@ H5Z__scaleoffset_compress(unsigned char *data, unsigned d_nelmts, unsigned char + parms_atomic p) + { + /* i: index of data, j: index of buffer, +- buf_len: number of bits to be filled in current byte */ ++ bits_to_fill: number of bits to be filled in current byte */ + size_t i, j; +- unsigned buf_len; ++ unsigned bits_to_fill; + + /* must initialize buffer to be zeros */ + for (j = 0; j < buffer_size; j++) + buffer[j] = 0; + + /* initialization before the loop */ +- j = 0; +- buf_len = sizeof(unsigned char) * 8; ++ j = 0; ++ bits_to_fill = sizeof(unsigned char) * 8; + + /* compress */ + for (i = 0; i < d_nelmts; i++) +- H5Z__scaleoffset_compress_one_atomic(data, i * p.size, buffer, &j, &buf_len, p); ++ H5Z__scaleoffset_compress_one_atomic(data, i * p.size, buffer, &j, &bits_to_fill, p); + } +diff --git a/src/H5Zscaleoffset.c.orig b/src/H5Zscaleoffset.c.orig +new file mode 100644 +index 0000000..fbf12d6 +--- /dev/null ++++ b/src/H5Zscaleoffset.c.orig +@@ -0,0 +1,1781 @@ ++/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ++ * Copyright by The HDF Group. * ++ * All rights reserved. * ++ * * ++ * This file is part of HDF5. The full HDF5 copyright notice, including * ++ * terms governing use, modification, and redistribution, is contained in * ++ * the COPYING file, which can be found at the root of the source code * ++ * distribution tree, or in https://www.hdfgroup.org/licenses. * ++ * If you do not have access to either file, you may request a copy from * ++ * help@hdfgroup.org. * ++ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ ++ ++#include "H5Zmodule.h" /* This source code file is part of the H5Z module */ ++ ++#include "H5private.h" /* Generic Functions */ ++#include "H5Eprivate.h" /* Error handling */ ++#include "H5Iprivate.h" /* IDs */ ++#include "H5MMprivate.h" /* Memory management */ ++#include "H5Pprivate.h" /* Property lists */ ++#include "H5Oprivate.h" /* Object headers */ ++#include "H5Sprivate.h" /* Dataspaces */ ++#include "H5Tprivate.h" /* Datatypes */ ++#include "H5Zpkg.h" /* Data filters */ ++ ++/* Struct of parameters needed for compressing/decompressing one atomic datatype */ ++typedef struct { ++ unsigned size; /* datatype size */ ++ uint32_t minbits; /* minimum bits to compress one value of such datatype */ ++ unsigned mem_order; /* current memory endianness order */ ++} parms_atomic; ++ ++enum H5Z_scaleoffset_t { ++ t_bad = 0, ++ t_uchar = 1, ++ t_ushort, ++ t_uint, ++ t_ulong, ++ t_ulong_long, ++ t_schar, ++ t_short, ++ t_int, ++ t_long, ++ t_long_long, ++ t_float, ++ t_double ++}; ++ ++/* Local function prototypes */ ++static htri_t H5Z__can_apply_scaleoffset(hid_t dcpl_id, hid_t type_id, hid_t space_id); ++static enum H5Z_scaleoffset_t H5Z__scaleoffset_get_type(unsigned dtype_class, unsigned dtype_size, ++ unsigned dtype_sign); ++static herr_t H5Z__scaleoffset_set_parms_fillval(H5P_genplist_t *dcpl_plist, H5T_t *type, ++ enum H5Z_scaleoffset_t scale_type, unsigned cd_values[], ++ int need_convert); ++static herr_t H5Z__set_local_scaleoffset(hid_t dcpl_id, hid_t type_id, hid_t space_id); ++static size_t H5Z__filter_scaleoffset(unsigned flags, size_t cd_nelmts, const unsigned cd_values[], ++ size_t nbytes, size_t *buf_size, void **buf); ++static void H5Z__scaleoffset_convert(void *buf, unsigned d_nelmts, unsigned dtype_size); ++static H5_ATTR_CONST unsigned H5Z__scaleoffset_log2(unsigned long long num); ++static void H5Z__scaleoffset_precompress_i(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], uint32_t *minbits, ++ unsigned long long *minval); ++static void H5Z__scaleoffset_postdecompress_i(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], uint32_t minbits, ++ unsigned long long minval); ++static herr_t H5Z__scaleoffset_precompress_fd(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], ++ uint32_t *minbits, unsigned long long *minval, double D_val); ++static herr_t H5Z__scaleoffset_postdecompress_fd(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], ++ uint32_t minbits, unsigned long long minval, double D_val); ++static void H5Z__scaleoffset_next_byte(size_t *j, unsigned *buf_len); ++static void H5Z__scaleoffset_decompress_one_byte(unsigned char *data, size_t data_offset, unsigned k, ++ unsigned begin_i, const unsigned char *buffer, size_t *j, ++ unsigned *buf_len, parms_atomic p, unsigned dtype_len); ++static void H5Z__scaleoffset_compress_one_byte(const unsigned char *data, size_t data_offset, unsigned k, ++ unsigned begin_i, unsigned char *buffer, size_t *j, ++ unsigned *buf_len, parms_atomic p, unsigned dtype_len); ++static void H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, ++ unsigned char *buffer, size_t *j, unsigned *buf_len, ++ parms_atomic p); ++static void H5Z__scaleoffset_compress_one_atomic(unsigned char *data, size_t data_offset, ++ unsigned char *buffer, size_t *j, unsigned *buf_len, ++ parms_atomic p); ++static void H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, ++ parms_atomic p); ++static void H5Z__scaleoffset_compress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, ++ size_t buffer_size, parms_atomic p); ++ ++/* This message derives from H5Z */ ++H5Z_class2_t H5Z_SCALEOFFSET[1] = {{ ++ H5Z_CLASS_T_VERS, /* H5Z_class_t version */ ++ H5Z_FILTER_SCALEOFFSET, /* Filter id number */ ++ 1, /* Assume encoder present: check before registering */ ++ 1, /* decoder_present flag (set to true) */ ++ "scaleoffset", /* Filter name for debugging */ ++ H5Z__can_apply_scaleoffset, /* The "can apply" callback */ ++ H5Z__set_local_scaleoffset, /* The "set local" callback */ ++ H5Z__filter_scaleoffset, /* The actual filter function */ ++}}; ++ ++/* Local macros */ ++#define H5Z_SCALEOFFSET_TOTAL_NPARMS 20 /* Total number of parameters for filter */ ++#define H5Z_SCALEOFFSET_PARM_SCALETYPE 0 /* "User" parameter for scale type */ ++#define H5Z_SCALEOFFSET_PARM_SCALEFACTOR 1 /* "User" parameter for scale factor */ ++#define H5Z_SCALEOFFSET_PARM_NELMTS 2 /* "Local" parameter for number of elements in the chunk */ ++#define H5Z_SCALEOFFSET_PARM_CLASS 3 /* "Local" parameter for datatype class */ ++#define H5Z_SCALEOFFSET_PARM_SIZE 4 /* "Local" parameter for datatype size */ ++#define H5Z_SCALEOFFSET_PARM_SIGN 5 /* "Local" parameter for integer datatype sign */ ++#define H5Z_SCALEOFFSET_PARM_ORDER 6 /* "Local" parameter for datatype byte order */ ++#define H5Z_SCALEOFFSET_PARM_FILAVAIL 7 /* "Local" parameter for dataset fill value existence */ ++#define H5Z_SCALEOFFSET_PARM_FILVAL 8 /* "Local" parameter for start location to store dataset fill value */ ++ ++#define H5Z_SCALEOFFSET_CLS_INTEGER 0 /* Integer (datatype class) */ ++#define H5Z_SCALEOFFSET_CLS_FLOAT 1 /* Floatig-point (datatype class) */ ++ ++#define H5Z_SCALEOFFSET_SGN_NONE 0 /* Unsigned integer type */ ++#define H5Z_SCALEOFFSET_SGN_2 1 /* Two's complement signed integer type */ ++ ++#define H5Z_SCALEOFFSET_ORDER_LE 0 /* Little endian (datatype byte order) */ ++#define H5Z_SCALEOFFSET_ORDER_BE 1 /* Big endian (datatype byte order) */ ++ ++#define H5Z_SCALEOFFSET_FILL_UNDEFINED 0 /* Fill value is not defined */ ++#define H5Z_SCALEOFFSET_FILL_DEFINED 1 /* Fill value is defined */ ++ ++/* Store fill value in cd_values[] */ ++#define H5Z_scaleoffset_save_filval(type, cd_values, fill_val) \ ++ { \ ++ unsigned _i = H5Z_SCALEOFFSET_PARM_FILVAL; /* index into cd_values */ \ ++ uint32_t _cd_value; /* Current cd_value */ \ ++ char *_fv_p; /* Pointer to current byte in fill_val */ \ ++ size_t _copy_size = 4; /* # of bytes to copy this iteration */ \ ++ size_t _size_rem = sizeof(type); /* # of bytes left to copy to cd_values */ \ ++ \ ++ /* Store the fill value as the last entry in cd_values[] \ ++ * Store byte by byte from least significant byte to most significant byte \ ++ * Plenty of space left for the fill value (from index 8 to 19) \ ++ * H5O_pline_encode will byte-swap each individual cd value, but we still \ ++ * need to swap the cd values as a whole if we are on a BE machine. Note \ ++ * that we need to make sure to put the data only in the lowest 4 bytes of \ ++ * each, if sizeof(unsigned) > 4. \ ++ */ \ ++ if (H5T_native_order_g == H5T_ORDER_LE) { \ ++ _fv_p = (char *)&(fill_val); \ ++ /* Copy 4 bytes at a time to each cd value */ \ ++ do { \ ++ if (_size_rem < 4) { \ ++ /* Amount left to copy is smaller than a cd_value, adjust copy \ ++ * size and initialize cd_value as it will not be fully \ ++ * overwritten */ \ ++ _copy_size = _size_rem; \ ++ _cd_value = (uint32_t)0; \ ++ } /* end if */ \ ++ \ ++ /* Copy the value */ \ ++ H5MM_memcpy(&_cd_value, _fv_p, _copy_size); \ ++ (cd_values)[_i] = (unsigned)_cd_value; \ ++ \ ++ /* Next field */ \ ++ _i++; \ ++ _fv_p += _copy_size; \ ++ _size_rem -= _copy_size; \ ++ } while (_size_rem); \ ++ } /* end if */ \ ++ else { \ ++ assert(H5T_native_order_g == H5T_ORDER_BE); \ ++ \ ++ /* Copy 4 bytes at a time to each cd value, but start at the end \ ++ * (highest address) of fill_val */ \ ++ _fv_p = ((char *)&(fill_val)) + sizeof(type) - MIN(4, _size_rem); \ ++ while (_size_rem >= 4) { \ ++ /* Copy the value */ \ ++ H5MM_memcpy(&_cd_value, _fv_p, _copy_size); \ ++ (cd_values)[_i] = (unsigned)_cd_value; \ ++ \ ++ /* Next field */ \ ++ _i++; \ ++ _size_rem -= 4; \ ++ if (_size_rem >= 4) \ ++ _fv_p -= 4; \ ++ else \ ++ _fv_p -= _size_rem; \ ++ } /* end while */ \ ++ \ ++ assert(_fv_p == (char *)&(fill_val)); \ ++ if (_size_rem) { \ ++ /* Amount left to copy is smaller than a cd_value, initialize \ ++ * _cd_value as it will not be fully overwritten and copy to the end \ ++ * of _cd value as it is BE. */ \ ++ _cd_value = (uint32_t)0; \ ++ H5MM_memcpy((char *)&_cd_value + 4 - _size_rem, _fv_p, _size_rem); \ ++ (cd_values)[_i] = (unsigned)_cd_value; \ ++ } /* end if */ \ ++ } /* end else */ \ ++ } ++ ++/* Set the fill value parameter in cd_values[] for unsigned integer type */ ++#define H5Z_scaleoffset_set_filval_1(type, dcpl_plist, dt, cd_values, need_convert) \ ++ do { \ ++ type fill_val; \ ++ \ ++ /* Get dataset fill value */ \ ++ if (H5P_get_fill_value(dcpl_plist, dt, &fill_val) < 0) \ ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to get fill value"); \ ++ \ ++ if (need_convert) \ ++ H5Z__scaleoffset_convert(&fill_val, 1, sizeof(type)); \ ++ \ ++ H5Z_scaleoffset_save_filval(type, cd_values, fill_val) \ ++ } while (0) ++ ++/* Set the fill value parameter in cd_values[] for signed integer type */ ++#define H5Z_scaleoffset_set_filval_2(type, dcpl_plist, dt, cd_values, need_convert) \ ++ do { \ ++ type fill_val; \ ++ \ ++ /* Get dataset fill value */ \ ++ if (H5P_get_fill_value(dcpl_plist, dt, &fill_val) < 0) \ ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to get fill value"); \ ++ \ ++ if (need_convert) \ ++ H5Z__scaleoffset_convert(&fill_val, 1, sizeof(type)); \ ++ \ ++ H5Z_scaleoffset_save_filval(unsigned type, cd_values, fill_val) \ ++ } while (0) ++ ++/* Set the fill value parameter in cd_values[] for character integer type */ ++#define H5Z_scaleoffset_set_filval_3(type, dcpl_plist, dt, cd_values, need_convert) \ ++ do { \ ++ type fill_val; \ ++ \ ++ /* Get dataset fill value */ \ ++ if (H5P_get_fill_value(dcpl_plist, dt, &fill_val) < 0) \ ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to get fill value"); \ ++ \ ++ /* Store the fill value as the last entry in cd_values[] */ \ ++ (cd_values)[H5Z_SCALEOFFSET_PARM_FILVAL] = (unsigned)((unsigned char)fill_val); \ ++ } while (0) ++ ++/* Set the fill value parameter in cd_values[] for floating-point type */ ++#define H5Z_scaleoffset_set_filval_4(type, dcpl_plist, dt, cd_values, need_convert) \ ++ do { \ ++ type fill_val; \ ++ \ ++ /* Get dataset fill value */ \ ++ if (H5P_get_fill_value(dcpl_plist, dt, &fill_val) < 0) \ ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to get fill value"); \ ++ \ ++ if (need_convert) \ ++ H5Z__scaleoffset_convert(&fill_val, 1, sizeof(type)); \ ++ \ ++ H5Z_scaleoffset_save_filval(type, cd_values, fill_val) \ ++ } while (0) ++ ++/* Get the fill value for integer type */ ++#define H5Z_scaleoffset_get_filval_1(type, cd_values, fill_val) \ ++ do { \ ++ unsigned _i = H5Z_SCALEOFFSET_PARM_FILVAL; /* index into cd_values */ \ ++ uint32_t _cd_value; /* Current cd_value */ \ ++ char *_fv_p; /* Pointer to current byte in fill_val */ \ ++ size_t _copy_size = 4; /* # of bytes to copy this iteration */ \ ++ size_t _size_rem = sizeof(type); /* # of bytes left to copy to filval */ \ ++ \ ++ /* Retrieve the fill value from the last entry in cd_values[] \ ++ * Store byte by byte from least significant byte to most significant byte \ ++ * Plenty of space left for the fill value (from index 8 to 19) \ ++ * H5O_pline_encode will byte-swap each individual cd value, but we still \ ++ * need to swap the cd values as a whole if we are on a BE machine. Note \ ++ * that we need to make sure to put the data only in the lowest 4 bytes of \ ++ * each, if sizeof(unsigned) > 4. \ ++ */ \ ++ if (H5T_native_order_g == H5T_ORDER_LE) { \ ++ _fv_p = (char *)&(fill_val); \ ++ /* Copy 4 bytes at a time to each cd value */ \ ++ do { \ ++ if (_size_rem < 4) \ ++ /* Amount left to copy is smaller than a cd_value, adjust copy \ ++ * size and initialize cd_value as it will not be fully \ ++ * overwritten */ \ ++ _copy_size = _size_rem; \ ++ \ ++ /* Copy the value */ \ ++ _cd_value = (uint32_t)(cd_values)[_i]; \ ++ H5MM_memcpy(_fv_p, &_cd_value, _copy_size); \ ++ \ ++ /* Next field */ \ ++ _i++; \ ++ _fv_p += _copy_size; \ ++ _size_rem -= _copy_size; \ ++ } while (_size_rem); \ ++ } /* end if */ \ ++ else { \ ++ assert(H5T_native_order_g == H5T_ORDER_BE); \ ++ \ ++ /* Copy 4 bytes at a time to each cd value, but start at the end \ ++ * (highest address) of fill_val */ \ ++ _fv_p = ((char *)&(fill_val)) + sizeof(type) - MIN(4, _size_rem); \ ++ while (_size_rem >= 4) { \ ++ /* Copy the value */ \ ++ _cd_value = (uint32_t)(cd_values)[_i]; \ ++ H5MM_memcpy(_fv_p, &_cd_value, _copy_size); \ ++ \ ++ /* Next field */ \ ++ _i++; \ ++ _size_rem -= 4; \ ++ if (_size_rem >= 4) \ ++ _fv_p -= 4; \ ++ else \ ++ _fv_p -= _size_rem; \ ++ } /* end while */ \ ++ \ ++ assert(_fv_p == (char *)&(fill_val)); \ ++ if (_size_rem) { \ ++ /* Amount left to copy is smaller than a cd_value, initialize \ ++ * _cd_value as it will not be fully overwritten and copy to the end \ ++ * of _cd value as it is BE. */ \ ++ _cd_value = (uint32_t)(cd_values)[_i]; \ ++ H5MM_memcpy(_fv_p, (char *)&_cd_value + 4 - _size_rem, _size_rem); \ ++ } /* end if */ \ ++ } /* end else */ \ ++ } while (0) ++ ++/* Get the fill value for floating-point type */ ++#define H5Z_scaleoffset_get_filval_2(type, cd_values, filval) \ ++ do { \ ++ if (sizeof(type) <= sizeof(long long)) \ ++ H5Z_scaleoffset_get_filval_1(type, cd_values, filval); \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } while (0) ++ ++/* Find maximum and minimum values of a buffer with fill value defined for integer type */ ++#define H5Z_scaleoffset_max_min_1(i, d_nelmts, buf, filval, max, min) \ ++ { \ ++ i = 0; \ ++ while (i < d_nelmts && buf[i] == filval) \ ++ i++; \ ++ if (i < d_nelmts) \ ++ min = max = buf[i]; \ ++ for (; i < d_nelmts; i++) { \ ++ if (buf[i] == filval) \ ++ continue; /* ignore fill value */ \ ++ if (buf[i] > max) \ ++ max = buf[i]; \ ++ if (buf[i] < min) \ ++ min = buf[i]; \ ++ } \ ++ } ++ ++/* Find maximum and minimum values of a buffer with fill value undefined */ ++#define H5Z_scaleoffset_max_min_2(i, d_nelmts, buf, max, min) \ ++ { \ ++ min = max = buf[0]; \ ++ for (i = 0; i < d_nelmts; i++) { \ ++ if (buf[i] > max) \ ++ max = buf[i]; \ ++ if (buf[i] < min) \ ++ min = buf[i]; \ ++ } \ ++ } ++ ++/* Find maximum and minimum values of a buffer with fill value defined for floating-point type */ ++#define H5Z_scaleoffset_max_min_3(i, d_nelmts, buf, filval, max, min, D_val) \ ++ { \ ++ i = 0; \ ++ while (i < d_nelmts && fabs((double)(buf[i] - filval)) < pow(10.0, -D_val)) \ ++ i++; \ ++ if (i < d_nelmts) \ ++ min = max = buf[i]; \ ++ for (; i < d_nelmts; i++) { \ ++ if (fabs((double)(buf[i] - filval)) < pow(10.0, -D_val)) \ ++ continue; /* ignore fill value */ \ ++ if (buf[i] > max) \ ++ max = buf[i]; \ ++ if (buf[i] < min) \ ++ min = buf[i]; \ ++ } \ ++ } ++ ++/* Find minimum value of a buffer with fill value defined for integer type */ ++#define H5Z_scaleoffset_min_1(i, d_nelmts, buf, filval, min) \ ++ { \ ++ i = 0; \ ++ while (i < d_nelmts && buf[i] == filval) \ ++ i++; \ ++ if (i < d_nelmts) \ ++ min = buf[i]; \ ++ for (; i < d_nelmts; i++) { \ ++ if (buf[i] == filval) \ ++ continue; /* ignore fill value */ \ ++ if (buf[i] < min) \ ++ min = buf[i]; \ ++ } \ ++ } ++ ++/* Find minimum value of a buffer with fill value undefined */ ++#define H5Z_scaleoffset_min_2(i, d_nelmts, buf, min) \ ++ { \ ++ min = buf[0]; \ ++ for (i = 0; i < d_nelmts; i++) \ ++ if (buf[i] < min) \ ++ min = buf[i]; \ ++ } ++ ++/* Check and handle special situation for unsigned integer type */ ++#define H5Z_scaleoffset_check_1(type, max, min, minbits) \ ++ { \ ++ if (max - min > (type)(~(type)0 - 2)) { \ ++ *minbits = sizeof(type) * 8; \ ++ return; \ ++ } \ ++ } ++ ++/* Check and handle special situation for signed integer type */ ++#define H5Z_scaleoffset_check_2(type, max, min, minbits) \ ++ { \ ++ if ((unsigned type)(max - min) > (unsigned type)(~(unsigned type)0 - 2)) { \ ++ *minbits = sizeof(type) * 8; \ ++ return; \ ++ } \ ++ } ++ ++/* Check and handle special situation for floating-point type */ ++#define H5Z_scaleoffset_check_3(i, type, pow_fun, round_fun, max, min, minbits, D_val) \ ++ { \ ++ if (sizeof(type) == sizeof(int)) { \ ++ if (round_fun(max * pow_fun((type)10, (type)D_val) - min * pow_fun((type)10, (type)D_val)) > \ ++ pow_fun((type)2, (type)(sizeof(int) * 8 - 1))) { \ ++ *minbits = sizeof(int) * 8; \ ++ goto done; \ ++ } \ ++ } \ ++ else if (sizeof(type) == sizeof(long)) { \ ++ if (round_fun(max * pow_fun((type)10, (type)D_val) - min * pow_fun((type)10, (type)D_val)) > \ ++ pow_fun((type)2, (type)(sizeof(long) * 8 - 1))) { \ ++ *minbits = sizeof(long) * 8; \ ++ goto done; \ ++ } \ ++ } \ ++ else if (sizeof(type) == sizeof(long long)) { \ ++ if (round_fun(max * pow_fun((type)10, (type)D_val) - min * pow_fun((type)10, (type)D_val)) > \ ++ pow_fun((type)2, (type)(sizeof(long long) * 8 - 1))) { \ ++ *minbits = sizeof(long long) * 8; \ ++ goto done; \ ++ } \ ++ } \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } ++ ++/* Precompress for unsigned integer type */ ++#define H5Z_scaleoffset_precompress_1(type, data, d_nelmts, filavail, cd_values, minbits, minval) \ ++ do { \ ++ type *buf = (type *)data, min = 0, max = 0, span, filval = 0; \ ++ unsigned i; \ ++ \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_1(type, cd_values, filval); \ ++ if (*minbits == \ ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ \ ++ H5Z_scaleoffset_max_min_1(i, d_nelmts, buf, filval, max, min) \ ++ H5Z_scaleoffset_check_1(type, max, min, minbits) span = (type)(max - min + 1); \ ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)(span + 1)); \ ++ } \ ++ else /* minbits already set, only calculate min */ \ ++ H5Z_scaleoffset_min_1(i, d_nelmts, buf, filval, min); \ ++ if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)((buf[i] == filval) ? (((type)1 << *minbits) - 1) : (buf[i] - min)); \ ++ } \ ++ else { /* fill value undefined */ \ ++ if (*minbits == \ ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ \ ++ H5Z_scaleoffset_max_min_2(i, d_nelmts, buf, max, min); \ ++ H5Z_scaleoffset_check_1(type, max, min, minbits); \ ++ span = (type)(max - min + 1); \ ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)span); \ ++ } \ ++ else /* minbits already set, only calculate min */ \ ++ H5Z_scaleoffset_min_2(i, d_nelmts, buf, min); \ ++ if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)(buf[i] - min); \ ++ } \ ++ *minval = min; \ ++ } while (0) ++ ++/* Precompress for signed integer type */ ++#define H5Z_scaleoffset_precompress_2(type, data, d_nelmts, filavail, cd_values, minbits, minval) \ ++ do { \ ++ type *buf = (type *)data, min = 0, max = 0, filval = 0; \ ++ unsigned type span; \ ++ unsigned i; \ ++ \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_1(type, cd_values, filval); \ ++ if (*minbits == \ ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ \ ++ H5Z_scaleoffset_max_min_1(i, d_nelmts, buf, filval, max, min) \ ++ H5Z_scaleoffset_check_2(type, max, min, minbits) span = (unsigned type)(max - min + 1); \ ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)(span + 1)); \ ++ } \ ++ else /* minbits already set, only calculate min */ \ ++ H5Z_scaleoffset_min_1(i, d_nelmts, buf, filval, min); \ ++ if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)((buf[i] == filval) ? (type)(((unsigned type)1 << *minbits) - 1) \ ++ : (buf[i] - min)); \ ++ } \ ++ else { /* fill value undefined */ \ ++ if (*minbits == \ ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ \ ++ H5Z_scaleoffset_max_min_2(i, d_nelmts, buf, max, min) \ ++ H5Z_scaleoffset_check_2(type, max, min, minbits) span = (unsigned type)(max - min + 1); \ ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)span); \ ++ } \ ++ else /* minbits already set, only calculate min */ \ ++ H5Z_scaleoffset_min_2( \ ++ i, d_nelmts, buf, \ ++ min) if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ for (i = 0; i < d_nelmts; i++) buf[i] = (type)(buf[i] - min); \ ++ } \ ++ *minval = (unsigned long long)min; \ ++ } while (0) ++ ++/* Modify values of data in precompression if fill value defined for floating-point type */ ++#define H5Z_scaleoffset_modify_1(i, type, pow_fun, abs_fun, lround_fun, llround_fun, buf, d_nelmts, filval, \ ++ minbits, min, D_val) \ ++ { \ ++ if (sizeof(type) == sizeof(int)) \ ++ for (i = 0; i < d_nelmts; i++) { \ ++ if (abs_fun(buf[i] - filval) < pow_fun((type)10, (type)-D_val)) \ ++ *(int *)((void *)&buf[i]) = (int)(((unsigned int)1 << *minbits) - 1); \ ++ else \ ++ *(int *)((void *)&buf[i]) = (int)lround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ } \ ++ else if (sizeof(type) == sizeof(long)) \ ++ for (i = 0; i < d_nelmts; i++) { \ ++ if (abs_fun(buf[i] - filval) < pow_fun((type)10, (type)-D_val)) \ ++ *(long *)((void *)&buf[i]) = (long)(((unsigned long)1 << *minbits) - 1); \ ++ else \ ++ *(long *)((void *)&buf[i]) = lround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ } \ ++ else if (sizeof(type) == sizeof(long long)) \ ++ for (i = 0; i < d_nelmts; i++) { \ ++ if (abs_fun(buf[i] - filval) < pow_fun((type)10, (type)-D_val)) \ ++ *(long long *)((void *)&buf[i]) = (long long)(((unsigned long long)1 << *minbits) - 1); \ ++ else \ ++ *(long long *)((void *)&buf[i]) = llround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ } \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } ++ ++/* Modify values of data in precompression if fill value undefined for floating-point type */ ++#define H5Z_scaleoffset_modify_2(i, type, pow_fun, lround_fun, llround_fun, buf, d_nelmts, min, D_val) \ ++ { \ ++ if (sizeof(type) == sizeof(int)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ *(int *)((void *)&buf[i]) = (int)lround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ else if (sizeof(type) == sizeof(long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ *(long *)((void *)&buf[i]) = lround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ else if (sizeof(type) == sizeof(long long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ *(long long *)((void *)&buf[i]) = llround_fun(buf[i] * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)); \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } ++ ++/* Save the minimum value for floating-point type */ ++#define H5Z_scaleoffset_save_min(i, type, minval, min) \ ++ { \ ++ if (sizeof(type) <= sizeof(long long)) \ ++ /* Save min value to corresponding position \ ++ * byte-order will be swapped as appropriate, but be sure to \ ++ * account for offset in BE if sizes differ \ ++ */ \ ++ if (H5T_native_order_g == H5T_ORDER_LE) \ ++ H5MM_memcpy(minval, &min, sizeof(type)); \ ++ else { \ ++ assert(H5T_native_order_g == H5T_ORDER_BE); \ ++ H5MM_memcpy(((char *)minval) + (sizeof(long long) - sizeof(type)), &min, sizeof(type)); \ ++ } /* end else */ \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } ++ ++/* Precompress for floating-point type using variable-minimum-bits method */ ++#define H5Z_scaleoffset_precompress_3(type, pow_fun, abs_fun, round_fun, lround_fun, llround_fun, data, \ ++ d_nelmts, filavail, cd_values, minbits, minval, D_val) \ ++ do { \ ++ type *buf = (type *)data, min = 0, max = 0, filval = 0; \ ++ unsigned long long span; \ ++ unsigned i; \ ++ \ ++ *minval = 0; \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_2(type, cd_values, filval); \ ++ H5Z_scaleoffset_max_min_3(i, d_nelmts, buf, filval, max, min, D_val); \ ++ H5Z_scaleoffset_check_3(i, type, pow_fun, round_fun, max, min, minbits, D_val); \ ++ span = (unsigned long long)(llround_fun(max * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)) + \ ++ 1); \ ++ *minbits = H5Z__scaleoffset_log2(span + 1); \ ++ if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ H5Z_scaleoffset_modify_1(i, type, pow_fun, abs_fun, lround_fun, llround_fun, buf, d_nelmts, \ ++ filval, minbits, min, D_val); \ ++ } \ ++ else { /* fill value undefined */ \ ++ H5Z_scaleoffset_max_min_2(i, d_nelmts, buf, max, min); \ ++ H5Z_scaleoffset_check_3(i, type, pow_fun, round_fun, max, min, minbits, D_val); \ ++ span = (unsigned long long)(llround_fun(max * pow_fun((type)10, (type)D_val) - \ ++ min * pow_fun((type)10, (type)D_val)) + \ ++ 1); \ ++ *minbits = H5Z__scaleoffset_log2(span); \ ++ if (*minbits != sizeof(type) * 8) /* change values if minbits != full precision */ \ ++ H5Z_scaleoffset_modify_2(i, type, pow_fun, lround_fun, llround_fun, buf, d_nelmts, min, \ ++ D_val); \ ++ } \ ++ H5Z_scaleoffset_save_min(i, type, minval, min); \ ++ } while (0) ++ ++/* Postdecompress for unsigned integer type */ ++#define H5Z_scaleoffset_postdecompress_1(type, data, d_nelmts, filavail, cd_values, minbits, minval) \ ++ do { \ ++ type *buf = (type *)data, filval = 0; \ ++ unsigned i; \ ++ \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_1(type, cd_values, filval); \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)((buf[i] == (((type)1 << minbits) - 1)) ? filval : (buf[i] + minval)); \ ++ } \ ++ else /* fill value undefined */ \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)(buf[i] + (type)(minval)); \ ++ } while (0) ++ ++/* Postdecompress for signed integer type */ ++#define H5Z_scaleoffset_postdecompress_2(type, data, d_nelmts, filavail, cd_values, minbits, minval) \ ++ do { \ ++ type *buf = (type *)data, filval = 0; \ ++ unsigned i; \ ++ \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_1(type, cd_values, filval); \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)(((unsigned type)buf[i] == (((unsigned type)1 << minbits) - 1)) \ ++ ? filval \ ++ : (buf[i] + minval)); \ ++ } \ ++ else /* fill value undefined */ \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = (type)(buf[i] + (type)(minval)); \ ++ } while (0) ++ ++/* Retrieve minimum value of floating-point type */ ++#define H5Z_scaleoffset_get_min(type, minval, min) \ ++ do { \ ++ if (sizeof(type) <= sizeof(long long)) \ ++ /* retrieve min value from corresponding position \ ++ * byte-order has already been swapped as appropriate, but be sure to \ ++ * account for offset in BE if sizes differ \ ++ */ \ ++ if (H5T_native_order_g == H5T_ORDER_LE) \ ++ H5MM_memcpy(&min, &minval, sizeof(type)); \ ++ else { \ ++ assert(H5T_native_order_g == H5T_ORDER_BE); \ ++ H5MM_memcpy(&min, ((char *)&minval) + (sizeof(long long) - sizeof(type)), sizeof(type)); \ ++ } /* end else */ \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } while (0) ++ ++/* Modify values of data in postdecompression if fill value defined for floating-point type */ ++#define H5Z_scaleoffset_modify_3(i, type, pow_fun, buf, d_nelmts, filval, minbits, min, D_val) \ ++ do { \ ++ if (sizeof(type) == sizeof(int)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = \ ++ (type)((*(int *)((void *)&buf[i]) == (int)(((unsigned int)1 << minbits) - 1)) \ ++ ? filval \ ++ : (type)(*(int *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + min); \ ++ else if (sizeof(type) == sizeof(long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = \ ++ (type)((*(long *)((void *)&buf[i]) == (long)(((unsigned long)1 << minbits) - 1)) \ ++ ? filval \ ++ : (type)(*(long *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + min); \ ++ else if (sizeof(type) == sizeof(long long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = \ ++ (type)((*(long long *)((void *)&buf[i]) == \ ++ (long long)(((unsigned long long)1 << minbits) - 1)) \ ++ ? filval \ ++ : (type)(*(long long *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + \ ++ min); \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } while (0) ++ ++/* Modify values of data in postdecompression if fill value undefined for floating-point type */ ++#define H5Z_scaleoffset_modify_4(i, type, pow_fun, buf, d_nelmts, min, D_val) \ ++ do { \ ++ if (sizeof(type) == sizeof(int)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = ((type)(*(int *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + min); \ ++ else if (sizeof(type) == sizeof(long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = ((type)(*(long *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + min); \ ++ else if (sizeof(type) == sizeof(long long)) \ ++ for (i = 0; i < d_nelmts; i++) \ ++ buf[i] = ((type)(*(long long *)((void *)&buf[i])) / pow_fun((type)10, (type)D_val) + min); \ ++ else \ ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot find matched integer datatype"); \ ++ } while (0) ++ ++/* Postdecompress for floating-point type using variable-minimum-bits method */ ++#define H5Z_scaleoffset_postdecompress_3(type, pow_fun, data, d_nelmts, filavail, cd_values, minbits, \ ++ minval, D_val) \ ++ do { \ ++ type *buf = (type *)data, filval = 0, min = 0; \ ++ unsigned i; \ ++ \ ++ H5Z_scaleoffset_get_min(type, minval, min); \ ++ \ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ \ ++ H5Z_scaleoffset_get_filval_2(type, cd_values, filval); \ ++ H5Z_scaleoffset_modify_3(i, type, pow_fun, buf, d_nelmts, filval, minbits, min, D_val); \ ++ } \ ++ else /* fill value undefined */ \ ++ H5Z_scaleoffset_modify_4(i, type, pow_fun, buf, d_nelmts, min, D_val); \ ++ } while (0) ++ ++/*------------------------------------------------------------------------- ++ * Function: H5Z__can_apply_scaleoffset ++ * ++ * Purpose: Check the parameters for scaleoffset compression for ++ * validity and whether they fit a particular dataset. ++ * ++ * Return: Success: Non-negative ++ * Failure: Negative ++ * ++ *------------------------------------------------------------------------- ++ */ ++static htri_t ++H5Z__can_apply_scaleoffset(hid_t H5_ATTR_UNUSED dcpl_id, hid_t type_id, hid_t H5_ATTR_UNUSED space_id) ++{ ++ const H5T_t *type; /* Datatype */ ++ H5T_class_t dtype_class; /* Datatype's class */ ++ H5T_order_t dtype_order; /* Datatype's endianness order */ ++ htri_t ret_value = true; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ /* Get datatype */ ++ if (NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); ++ ++ /* Get datatype's class, for checking the "datatype class" */ ++ if ((dtype_class = H5T_get_class(type, true)) == H5T_NO_CLASS) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype class"); ++ ++ /* Get datatype's size, for checking the "datatype size" */ ++ if (H5T_get_size(type) == 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype size"); ++ ++ if (dtype_class == H5T_INTEGER || dtype_class == H5T_FLOAT) { ++ /* Get datatype's endianness order */ ++ if ((dtype_order = H5T_get_order(type)) == H5T_ORDER_ERROR) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "can't retrieve datatype endianness order"); ++ ++ /* Range check datatype's endianness order */ ++ if (dtype_order != H5T_ORDER_LE && dtype_order != H5T_ORDER_BE) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, false, "bad datatype endianness order"); ++ } ++ else ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, false, "datatype class not supported by scaleoffset"); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} /* end H5Z__can_apply_scaleoffset() */ ++ ++/*------------------------------------------------------------------------- ++ * Function: H5Z__scaleoffset_get_type ++ * ++ * Purpose: Get the specific integer type based on datatype size and sign ++ * or floating-point type based on size ++ * ++ * Return: Success: id number of integer type ++ * Failure: 0 ++ * ++ *------------------------------------------------------------------------- ++ */ ++static enum H5Z_scaleoffset_t ++H5Z__scaleoffset_get_type(unsigned dtype_class, unsigned dtype_size, unsigned dtype_sign) ++{ ++ enum H5Z_scaleoffset_t type = t_bad; /* integer type */ ++ enum H5Z_scaleoffset_t ret_value = t_bad; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_INTEGER) { ++ if (dtype_sign == H5Z_SCALEOFFSET_SGN_NONE) { /* unsigned integer */ ++ if (dtype_size == sizeof(unsigned char)) ++ type = t_uchar; ++ else if (dtype_size == sizeof(unsigned short)) ++ type = t_ushort; ++ else if (dtype_size == sizeof(unsigned int)) ++ type = t_uint; ++ else if (dtype_size == sizeof(unsigned long)) ++ type = t_ulong; ++#if H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG ++ else if (dtype_size == sizeof(unsigned long long)) ++ type = t_ulong_long; ++#endif /* H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG */ ++ else ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, t_bad, "cannot find matched memory datatype"); ++ } ++ ++ if (dtype_sign == H5Z_SCALEOFFSET_SGN_2) { /* signed integer */ ++ if (dtype_size == sizeof(signed char)) ++ type = t_schar; ++ else if (dtype_size == sizeof(short)) ++ type = t_short; ++ else if (dtype_size == sizeof(int)) ++ type = t_int; ++ else if (dtype_size == sizeof(long)) ++ type = t_long; ++#if H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG ++ else if (dtype_size == sizeof(long long)) ++ type = t_long_long; ++#endif /* H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG */ ++ else ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, t_bad, "cannot find matched memory datatype"); ++ } ++ } ++ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_FLOAT) { ++ if (dtype_size == sizeof(float)) ++ type = t_float; ++ else if (dtype_size == sizeof(double)) ++ type = t_double; ++ else ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, t_bad, "cannot find matched memory datatype"); ++ } ++ ++ /* Set return value */ ++ ret_value = type; ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} ++ ++/*------------------------------------------------------------------------- ++ * Function: H5Z__scaleoffset_set_parms_fillval ++ * ++ * Purpose: Get the fill value of the dataset and store in cd_values[] ++ * ++ * Return: Success: Non-negative ++ * Failure: Negative ++ * ++ *------------------------------------------------------------------------- ++ */ ++static herr_t ++H5Z__scaleoffset_set_parms_fillval(H5P_genplist_t *dcpl_plist, H5T_t *type, enum H5Z_scaleoffset_t scale_type, ++ unsigned cd_values[], int need_convert) ++{ ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ if (scale_type == t_uchar) ++ H5Z_scaleoffset_set_filval_3(unsigned char, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_ushort) ++ H5Z_scaleoffset_set_filval_1(unsigned short, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_uint) ++ H5Z_scaleoffset_set_filval_1(unsigned int, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_ulong) ++ H5Z_scaleoffset_set_filval_1(unsigned long, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_ulong_long) ++ H5Z_scaleoffset_set_filval_1(unsigned long long, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_schar) ++ H5Z_scaleoffset_set_filval_3(signed char, dcpl_plist, type, cd_values, need_convertd); ++ else if (scale_type == t_short) ++ H5Z_scaleoffset_set_filval_2(short, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_int) ++ H5Z_scaleoffset_set_filval_2(int, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_long) ++ H5Z_scaleoffset_set_filval_2(long, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_long_long) ++ H5Z_scaleoffset_set_filval_2(long long, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_float) ++ H5Z_scaleoffset_set_filval_4(float, dcpl_plist, type, cd_values, need_convert); ++ else if (scale_type == t_double) ++ H5Z_scaleoffset_set_filval_4(double, dcpl_plist, type, cd_values, need_convert); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} /* end H5Z__scaleoffset_set_parms_fillval() */ ++ ++/*------------------------------------------------------------------------- ++ * Function: H5Z__set_local_scaleoffset ++ * ++ * Purpose: Set the "local" dataset parameters for scaleoffset ++ * compression. ++ * ++ * Return: Success: Non-negative ++ * Failure: Negative ++ * ++ *------------------------------------------------------------------------- ++ */ ++static herr_t ++H5Z__set_local_scaleoffset(hid_t dcpl_id, hid_t type_id, hid_t space_id) ++{ ++ H5P_genplist_t *dcpl_plist; /* Property list pointer */ ++ H5T_t *type; /* Datatype */ ++ const H5S_t *ds; /* Dataspace */ ++ unsigned flags; /* Filter flags */ ++ size_t cd_nelmts = H5Z_SCALEOFFSET_USER_NPARMS; /* Number of filter parameters */ ++ unsigned cd_values[H5Z_SCALEOFFSET_TOTAL_NPARMS]; /* Filter parameters */ ++ hssize_t npoints; /* Number of points in the dataspace */ ++ H5T_class_t dtype_class; /* Datatype's class */ ++ H5T_order_t dtype_order; /* Datatype's endianness order */ ++ size_t dtype_size; /* Datatype's size (in bytes) */ ++ H5T_sign_t dtype_sign; /* Datatype's sign */ ++ enum H5Z_scaleoffset_t scale_type; /* Specific datatype */ ++ H5D_fill_value_t status; /* Status of fill value in property list */ ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ /* Get the plist structure */ ++ if (NULL == (dcpl_plist = H5P_object_verify(dcpl_id, H5P_DATASET_CREATE))) ++ HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "can't find object for ID"); ++ ++ /* Get datatype */ ++ if (NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); ++ ++ /* Initialize the parameters to a known state */ ++ memset(cd_values, 0, sizeof(cd_values)); ++ ++ /* Get the filter's current parameters */ ++ if (H5P_get_filter_by_id(dcpl_plist, H5Z_FILTER_SCALEOFFSET, &flags, &cd_nelmts, cd_values, (size_t)0, ++ NULL, NULL) < 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't get scaleoffset parameters"); ++ ++ /* Get dataspace */ ++ if (NULL == (ds = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace"); ++ ++ /* Get total number of elements in the chunk */ ++ if ((npoints = H5S_GET_EXTENT_NPOINTS(ds)) < 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to get number of points in the dataspace"); ++ ++ /* Set "local" parameter for this dataset's number of elements */ ++ H5_CHECKED_ASSIGN(cd_values[H5Z_SCALEOFFSET_PARM_NELMTS], unsigned, npoints, hssize_t); ++ ++ /* Get datatype's class */ ++ if ((dtype_class = H5T_get_class(type, true)) == H5T_NO_CLASS) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype class"); ++ ++ /* Set "local" parameter for datatype's class */ ++ switch (dtype_class) { ++ case H5T_INTEGER: ++ cd_values[H5Z_SCALEOFFSET_PARM_CLASS] = H5Z_SCALEOFFSET_CLS_INTEGER; ++ break; ++ ++ case H5T_FLOAT: ++ cd_values[H5Z_SCALEOFFSET_PARM_CLASS] = H5Z_SCALEOFFSET_CLS_FLOAT; ++ break; ++ ++ case H5T_NO_CLASS: ++ case H5T_TIME: ++ case H5T_STRING: ++ case H5T_BITFIELD: ++ case H5T_OPAQUE: ++ case H5T_COMPOUND: ++ case H5T_REFERENCE: ++ case H5T_ENUM: ++ case H5T_VLEN: ++ case H5T_ARRAY: ++ case H5T_NCLASSES: ++ default: ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "datatype class not supported by scaleoffset"); ++ } /* end switch */ ++ ++ /* Get datatype's size */ ++ if ((dtype_size = H5T_get_size(type)) == 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype size"); ++ ++ /* Set "local" parameter for datatype size */ ++ H5_CHECK_OVERFLOW(dtype_size, size_t, unsigned); ++ cd_values[H5Z_SCALEOFFSET_PARM_SIZE] = (unsigned)dtype_size; ++ ++ if (dtype_class == H5T_INTEGER) { ++ /* Get datatype's sign */ ++ if ((dtype_sign = H5T_get_sign(type)) == H5T_SGN_ERROR) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype sign"); ++ ++ /* Set "local" parameter for integer datatype sign */ ++ switch (dtype_sign) { ++ case H5T_SGN_NONE: ++ cd_values[H5Z_SCALEOFFSET_PARM_SIGN] = H5Z_SCALEOFFSET_SGN_NONE; ++ break; ++ ++ case H5T_SGN_2: ++ cd_values[H5Z_SCALEOFFSET_PARM_SIGN] = H5Z_SCALEOFFSET_SGN_2; ++ break; ++ ++ case H5T_SGN_ERROR: ++ case H5T_NSGN: ++ default: ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad integer sign"); ++ } /* end switch */ ++ } /* end if */ ++ ++ /* Get datatype's endianness order */ ++ if ((dtype_order = H5T_get_order(type)) == H5T_ORDER_ERROR) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype endianness order"); ++ ++ /* Set "local" parameter for datatype endianness */ ++ switch (dtype_order) { ++ case H5T_ORDER_LE: /* Little-endian byte order */ ++ cd_values[H5Z_SCALEOFFSET_PARM_ORDER] = H5Z_SCALEOFFSET_ORDER_LE; ++ break; ++ ++ case H5T_ORDER_BE: /* Big-endian byte order */ ++ cd_values[H5Z_SCALEOFFSET_PARM_ORDER] = H5Z_SCALEOFFSET_ORDER_BE; ++ break; ++ ++ case H5T_ORDER_ERROR: ++ case H5T_ORDER_VAX: ++ case H5T_ORDER_MIXED: ++ case H5T_ORDER_NONE: ++ default: ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype endianness order"); ++ } /* end switch */ ++ ++ /* Check whether fill value is defined for dataset */ ++ if (H5P_fill_value_defined(dcpl_plist, &status) < 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "unable to determine if fill value is defined"); ++ ++ /* Set local parameter for availability of fill value */ ++ if (status == H5D_FILL_VALUE_UNDEFINED) ++ cd_values[H5Z_SCALEOFFSET_PARM_FILAVAIL] = H5Z_SCALEOFFSET_FILL_UNDEFINED; ++ else { ++ int need_convert = false; /* Flag indicating conversion of byte order */ ++ ++ cd_values[H5Z_SCALEOFFSET_PARM_FILAVAIL] = H5Z_SCALEOFFSET_FILL_DEFINED; ++ ++ /* Check if memory byte order matches dataset datatype byte order */ ++ if (H5T_native_order_g != dtype_order) ++ need_convert = true; ++ ++ /* Before getting fill value, get its type */ ++ if ((scale_type = H5Z__scaleoffset_get_type(cd_values[H5Z_SCALEOFFSET_PARM_CLASS], ++ cd_values[H5Z_SCALEOFFSET_PARM_SIZE], ++ cd_values[H5Z_SCALEOFFSET_PARM_SIGN])) == 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "cannot use C integer datatype for cast"); ++ ++ /* Get dataset fill value and store in cd_values[] */ ++ if (H5Z__scaleoffset_set_parms_fillval(dcpl_plist, type, scale_type, cd_values, need_convert) < 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTSET, FAIL, "unable to set fill value"); ++ } /* end else */ ++ ++ /* Modify the filter's parameters for this dataset */ ++ if (H5P_modify_filter(dcpl_plist, H5Z_FILTER_SCALEOFFSET, flags, (size_t)H5Z_SCALEOFFSET_TOTAL_NPARMS, ++ cd_values) < 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_CANTSET, FAIL, "can't set local scaleoffset parameters"); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} /* end H5Z__set_local_scaleoffset() */ ++ ++/*------------------------------------------------------------------------- ++ * Function: H5Z__filter_scaleoffset ++ * ++ * Purpose: Implement an I/O filter for storing packed integer ++ * data using scale and offset method. ++ * ++ * Return: Success: Size of buffer filtered ++ * Failure: 0 ++ * ++ *------------------------------------------------------------------------- ++ */ ++static size_t ++H5Z__filter_scaleoffset(unsigned flags, size_t cd_nelmts, const unsigned cd_values[], size_t nbytes, ++ size_t *buf_size, void **buf) ++{ ++ size_t ret_value = 0; /* return value */ ++ size_t size_out = 0; /* size of output buffer */ ++ unsigned d_nelmts = 0; /* number of data elements in the chunk */ ++ unsigned dtype_class; /* datatype class */ ++ unsigned dtype_sign; /* integer datatype sign */ ++ unsigned filavail; /* flag indicating if fill value is defined or not */ ++ H5Z_SO_scale_type_t scale_type = H5Z_SO_FLOAT_DSCALE; /* scale type */ ++ int scale_factor = 0; /* scale factor */ ++ double D_val = 0.0; /* decimal scale factor */ ++ uint32_t minbits = 0; /* minimum number of bits to store values */ ++ unsigned long long minval = 0; /* minimum value of input buffer */ ++ enum H5Z_scaleoffset_t type; /* memory type corresponding to dataset datatype */ ++ int need_convert = false; /* flag indicating conversion of byte order */ ++ unsigned char *outbuf = NULL; /* pointer to new output buffer */ ++ unsigned buf_offset = 21; /* buffer offset because of parameters stored in file */ ++ unsigned i; /* index */ ++ parms_atomic p; /* parameters needed for compress/decompress functions */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ /* check arguments */ ++ if (cd_nelmts != H5Z_SCALEOFFSET_TOTAL_NPARMS) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "invalid scaleoffset number of parameters"); ++ ++ /* Check if memory byte order matches dataset datatype byte order */ ++ switch (H5T_native_order_g) { ++ case H5T_ORDER_LE: /* memory is little-endian byte order */ ++ if (cd_values[H5Z_SCALEOFFSET_PARM_ORDER] == H5Z_SCALEOFFSET_ORDER_BE) ++ need_convert = true; ++ break; ++ ++ case H5T_ORDER_BE: /* memory is big-endian byte order */ ++ if (cd_values[H5Z_SCALEOFFSET_PARM_ORDER] == H5Z_SCALEOFFSET_ORDER_LE) ++ need_convert = true; ++ break; ++ ++ case H5T_ORDER_ERROR: ++ case H5T_ORDER_VAX: ++ case H5T_ORDER_MIXED: ++ case H5T_ORDER_NONE: ++ default: ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, 0, "bad H5T_NATIVE_INT endianness order"); ++ } /* end switch */ ++ ++ /* copy filter parameters to local variables */ ++ d_nelmts = cd_values[H5Z_SCALEOFFSET_PARM_NELMTS]; ++ dtype_class = cd_values[H5Z_SCALEOFFSET_PARM_CLASS]; ++ dtype_sign = cd_values[H5Z_SCALEOFFSET_PARM_SIGN]; ++ filavail = cd_values[H5Z_SCALEOFFSET_PARM_FILAVAIL]; ++ scale_factor = (int)cd_values[H5Z_SCALEOFFSET_PARM_SCALEFACTOR]; ++ scale_type = (H5Z_SO_scale_type_t)cd_values[H5Z_SCALEOFFSET_PARM_SCALETYPE]; ++ ++ /* check and assign proper values set by user to related parameters ++ * scale type can be H5Z_SO_FLOAT_DSCALE (0), H5Z_SO_FLOAT_ESCALE (1) or H5Z_SO_INT (other) ++ * H5Z_SO_FLOAT_DSCALE : floating-point type, variable-minimum-bits method, ++ * scale factor is decimal scale factor ++ * H5Z_SO_FLOAT_ESCALE : floating-point type, fixed-minimum-bits method, ++ * scale factor is the fixed minimum number of bits ++ * H5Z_SO_INT : integer type, scale_factor is minimum number of bits ++ */ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_FLOAT) { /* floating-point type */ ++ if (scale_type != H5Z_SO_FLOAT_DSCALE && scale_type != H5Z_SO_FLOAT_ESCALE) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "invalid scale type"); ++ } ++ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_INTEGER) { /* integer type */ ++ if (scale_type != H5Z_SO_INT) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "invalid scale type"); ++ ++ /* if scale_factor is less than 0 for integer, library will reset it to 0 ++ * in this case, library will calculate the minimum-bits ++ */ ++ if (scale_factor < 0) ++ scale_factor = 0; ++ } ++ ++ /* fixed-minimum-bits method is not implemented and is forbidden */ ++ if (scale_type == H5Z_SO_FLOAT_ESCALE) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "E-scaling method not supported"); ++ ++ if (scale_type == H5Z_SO_FLOAT_DSCALE) { /* floating-point type, variable-minimum-bits */ ++ D_val = (double)scale_factor; ++ } ++ else { /* integer type, or floating-point type with fixed-minimum-bits method */ ++ if (scale_factor > (int)(cd_values[H5Z_SCALEOFFSET_PARM_SIZE] * 8)) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "minimum number of bits exceeds maximum"); ++ ++ /* no need to process data */ ++ if (scale_factor == (int)(cd_values[H5Z_SCALEOFFSET_PARM_SIZE] * 8)) { ++ ret_value = *buf_size; ++ goto done; ++ } ++ minbits = (uint32_t)scale_factor; ++ } ++ ++ /* prepare parameters to pass to compress/decompress functions */ ++ p.size = cd_values[H5Z_SCALEOFFSET_PARM_SIZE]; ++ p.mem_order = (unsigned)H5T_native_order_g; ++ ++ /* input; decompress */ ++ if (flags & H5Z_FLAG_REVERSE) { ++ /* retrieve values of minbits and minval from input compressed buffer ++ * retrieve them corresponding to how they are stored during compression ++ */ ++ uint32_t minbits_mask = 0; ++ unsigned long long minval_mask = 0; ++ unsigned minval_size = 0; ++ ++ minbits = 0; ++ if (H5_IS_BUFFER_OVERFLOW((unsigned char *)*buf, 5, (unsigned char *)*buf + *buf_size - 1)) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "buffer too short"); ++ ++ for (i = 0; i < 4; i++) { ++ minbits_mask = ((unsigned char *)*buf)[i]; ++ minbits_mask <<= i * 8; ++ minbits |= minbits_mask; ++ } ++ if (minbits >= p.size * 8) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "minimum number of bits exceeds size of type"); ++ ++ /* retrieval of minval takes into consideration situation where sizeof ++ * unsigned long long (datatype of minval) may change from compression ++ * to decompression, only smaller size is used ++ */ ++ minval_size = sizeof(unsigned long long) <= ((unsigned char *)*buf)[4] ? sizeof(unsigned long long) ++ : ((unsigned char *)*buf)[4]; ++ minval = 0; ++ if (H5_IS_BUFFER_OVERFLOW((unsigned char *)*buf, 5 + minval_size, ++ (unsigned char *)*buf + *buf_size - 1)) ++ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "buffer too short"); ++ for (i = 0; i < minval_size; i++) { ++ minval_mask = ((unsigned char *)*buf)[5 + i]; ++ minval_mask <<= i * 8; ++ minval |= minval_mask; ++ } ++ ++ assert(minbits <= p.size * 8); ++ p.minbits = minbits; ++ ++ /* calculate size of output buffer after decompression */ ++ size_out = d_nelmts * (size_t)p.size; ++ ++ /* allocate memory space for decompressed buffer */ ++ if (NULL == (outbuf = (unsigned char *)H5MM_malloc(size_out))) ++ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, ++ "memory allocation failed for scaleoffset decompression"); ++ ++ /* special case: minbits equal to full precision */ ++ if (minbits == p.size * 8) { ++ H5MM_memcpy(outbuf, (unsigned char *)(*buf) + buf_offset, size_out); ++ /* free the original buffer */ ++ H5MM_xfree(*buf); ++ ++ /* convert to dataset datatype endianness order if needed */ ++ if (need_convert) ++ H5Z__scaleoffset_convert(outbuf, d_nelmts, p.size); ++ ++ *buf = outbuf; ++ outbuf = NULL; ++ *buf_size = size_out; ++ ret_value = size_out; ++ goto done; ++ } ++ ++ /* decompress the buffer if minbits not equal to zero */ ++ if (minbits != 0) ++ H5Z__scaleoffset_decompress(outbuf, d_nelmts, (unsigned char *)(*buf) + buf_offset, p); ++ else { ++ /* fill value is not defined and all data elements have the same value */ ++ for (i = 0; i < size_out; i++) ++ outbuf[i] = 0; ++ } ++ ++ /* before postprocess, get memory type */ ++ if ((type = H5Z__scaleoffset_get_type(dtype_class, p.size, dtype_sign)) == 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, 0, "cannot use C integer datatype for cast"); ++ ++ /* postprocess after decompression */ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_INTEGER) ++ H5Z__scaleoffset_postdecompress_i(outbuf, d_nelmts, type, filavail, cd_values, minbits, minval); ++ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_FLOAT) ++ if (scale_type == 0) { /* variable-minimum-bits method */ ++ if (H5Z__scaleoffset_postdecompress_fd(outbuf, d_nelmts, type, filavail, cd_values, minbits, ++ minval, D_val) == FAIL) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, 0, "post-decompression failed"); ++ } ++ ++ /* after postprocess, convert to dataset datatype endianness order if needed */ ++ if (need_convert) ++ H5Z__scaleoffset_convert(outbuf, d_nelmts, p.size); ++ } ++ /* output; compress */ ++ else { ++ size_t used_bytes; ++ size_t unused_bytes; ++ ++ assert(nbytes == d_nelmts * p.size); ++ ++ /* before preprocess, convert to memory endianness order if needed */ ++ if (need_convert) ++ H5Z__scaleoffset_convert(*buf, d_nelmts, p.size); ++ ++ /* before preprocess, get memory type */ ++ if ((type = H5Z__scaleoffset_get_type(dtype_class, p.size, dtype_sign)) == 0) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, 0, "cannot use C integer datatype for cast"); ++ ++ /* preprocess before compression */ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_INTEGER) ++ H5Z__scaleoffset_precompress_i(*buf, d_nelmts, type, filavail, cd_values, &minbits, &minval); ++ ++ if (dtype_class == H5Z_SCALEOFFSET_CLS_FLOAT) ++ if (scale_type == 0) { /* variable-minimum-bits method */ ++ if (H5Z__scaleoffset_precompress_fd(*buf, d_nelmts, type, filavail, cd_values, &minbits, ++ &minval, D_val) == FAIL) ++ HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, 0, "pre-compression failed"); ++ } ++ ++ assert(minbits <= p.size * 8); ++ ++ /* calculate buffer size after compression ++ * minbits and minval are stored in the front of the compressed buffer ++ */ ++ p.minbits = minbits; ++ size_out = buf_offset + nbytes * p.minbits / (p.size * 8) + 1; /* may be 1 larger */ ++ ++ /* allocate memory space for compressed buffer */ ++ if (NULL == (outbuf = (unsigned char *)H5MM_malloc(size_out))) ++ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, "memory allocation failed for scaleoffset compression"); ++ ++ /* store minbits and minval in the front of output compressed buffer ++ * store byte by byte from least significant byte to most significant byte ++ * constant buffer size (21 bytes) is left for these two parameters ++ * 4 bytes for minbits, 1 byte for size of minval, 16 bytes for minval ++ */ ++ for (i = 0; i < 4; i++) ++ ((unsigned char *)outbuf)[i] = (unsigned char)((minbits & ((uint32_t)0xff << i * 8)) >> i * 8); ++ ++ ((unsigned char *)outbuf)[4] = sizeof(unsigned long long); ++ ++ for (i = 0; i < sizeof(unsigned long long); i++) ++ ((unsigned char *)outbuf)[5 + i] = ++ (unsigned char)((minval & ((unsigned long long)0xff << i * 8)) >> i * 8); ++ ++ /* Zero out remaining, unused bytes */ ++ /* (Looks like an error in the original determination of how many ++ * bytes would be needed for parameters. - QAK, 2010/08/19) ++ */ ++ used_bytes = 4 + 1 + sizeof(unsigned long long); ++ assert(used_bytes <= size_out); ++ unused_bytes = size_out - used_bytes; ++ memset(outbuf + 13, 0, unused_bytes); ++ ++ /* special case: minbits equal to full precision */ ++ if (minbits == p.size * 8) { ++ H5MM_memcpy(outbuf + buf_offset, *buf, nbytes); ++ /* free the original buffer */ ++ H5MM_xfree(*buf); ++ ++ *buf = outbuf; ++ outbuf = NULL; ++ *buf_size = size_out; ++ ret_value = buf_offset + nbytes; ++ goto done; ++ } ++ ++ /* compress the buffer if minbits not equal to zero ++ * minbits equal to zero only when fill value is not defined and ++ * all data elements have the same value ++ */ ++ if (minbits != 0) ++ H5Z__scaleoffset_compress((unsigned char *)*buf, d_nelmts, outbuf + buf_offset, ++ size_out - buf_offset, p); ++ } ++ ++ /* free the input buffer */ ++ H5MM_xfree(*buf); ++ ++ /* set return values */ ++ *buf = outbuf; ++ outbuf = NULL; ++ *buf_size = size_out; ++ ret_value = size_out; ++ ++done: ++ if (outbuf) ++ H5MM_xfree(outbuf); ++ FUNC_LEAVE_NOAPI(ret_value) ++} ++ ++/* ============ Scaleoffset Algorithm =============================================== ++ * assume one byte has 8 bit ++ * assume padding bit is 0 ++ * assume size of unsigned char is one byte ++ * assume one data item of certain datatype is stored continuously in bytes ++ * atomic datatype is treated on byte basis ++ */ ++ ++/* change byte order of input buffer either from little-endian to big-endian ++ * or from big-endian to little-endian 2/21/2005 ++ */ ++static void ++H5Z__scaleoffset_convert(void *buf, unsigned d_nelmts, unsigned dtype_size) ++{ ++ if (dtype_size > 1) { ++ size_t i, j; ++ unsigned char *buffer, temp; ++ ++ buffer = (unsigned char *)buf; ++ for (i = 0; i < d_nelmts * (size_t)dtype_size; i += dtype_size) ++ for (j = 0; j < dtype_size / 2; j++) { ++ /* swap pair of bytes */ ++ temp = buffer[i + j]; ++ buffer[i + j] = buffer[i + dtype_size - 1 - j]; ++ buffer[i + dtype_size - 1 - j] = temp; ++ } /* end for */ ++ } /* end if */ ++} /* end H5Z__scaleoffset_convert() */ ++ ++/* return ceiling of floating-point log2 function ++ * receive unsigned integer as argument 3/10/2005 ++ */ ++static unsigned ++H5Z__scaleoffset_log2(unsigned long long num) ++{ ++ unsigned v = 0; ++ unsigned long long lower_bound = 1; /* is power of 2, largest value <= num */ ++ unsigned long long val = num; ++ ++ while (val >>= 1) { ++ v++; ++ lower_bound <<= 1; ++ } ++ ++ if (num == lower_bound) ++ return v; ++ else ++ return v + 1; ++} ++ ++/* precompress for integer type */ ++static void ++H5Z__scaleoffset_precompress_i(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, unsigned filavail, ++ const unsigned cd_values[], uint32_t *minbits, unsigned long long *minval) ++{ ++ if (type == t_uchar) ++ H5Z_scaleoffset_precompress_1(unsigned char, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ushort) ++ H5Z_scaleoffset_precompress_1(unsigned short, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_uint) ++ H5Z_scaleoffset_precompress_1(unsigned int, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ulong) ++ H5Z_scaleoffset_precompress_1(unsigned long, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ulong_long) ++ H5Z_scaleoffset_precompress_1(unsigned long long, data, d_nelmts, filavail, cd_values, minbits, ++ minval); ++ else if (type == t_schar) { ++ signed char *buf = (signed char *)data, min = 0, max = 0, filval = 0; ++ unsigned char span; ++ unsigned i; ++ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ ++ H5Z_scaleoffset_get_filval_1(signed char, cd_values, filval); ++ if (*minbits == ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ ++ H5Z_scaleoffset_max_min_1(i, d_nelmts, buf, filval, max, ++ min) if ((unsigned char)(max - min) > ++ (unsigned char)(~(unsigned char)0 - 2)) ++ { ++ *minbits = sizeof(signed char) * 8; ++ return; ++ } ++ span = (unsigned char)(max - min + 1); ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)(span + 1)); ++ } ++ else /* minbits already set, only calculate min */ ++ H5Z_scaleoffset_min_1(i, d_nelmts, buf, filval, ++ min) if (*minbits != ++ sizeof(signed char) * ++ 8) /* change values if minbits != full precision */ ++ for (i = 0; i < d_nelmts; i++) buf[i] = ++ (signed char)((buf[i] == filval) ? (((unsigned char)1 << *minbits) - 1) ++ : (buf[i] - min)); ++ } ++ else { /* fill value undefined */ ++ if (*minbits == ++ H5Z_SO_INT_MINBITS_DEFAULT) { /* minbits not set yet, calculate max, min, and minbits */ ++ H5Z_scaleoffset_max_min_2(i, d_nelmts, buf, max, ++ min) if ((unsigned char)(max - min) > ++ (unsigned char)(~(unsigned char)0 - 2)) ++ { ++ *minbits = sizeof(signed char) * 8; ++ *minval = (unsigned long long)min; ++ return; ++ } ++ span = (unsigned char)(max - min + 1); ++ *minbits = H5Z__scaleoffset_log2((unsigned long long)span); ++ } ++ else /* minbits already set, only calculate min */ ++ H5Z_scaleoffset_min_2(i, d_nelmts, buf, ++ min) if (*minbits != ++ sizeof(signed char) * ++ 8) /* change values if minbits != full precision */ ++ for (i = 0; i < d_nelmts; i++) buf[i] = (signed char)(buf[i] - min); ++ } ++ *minval = (unsigned long long)min; ++ } ++ else if (type == t_short) ++ H5Z_scaleoffset_precompress_2(short, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_int) ++ H5Z_scaleoffset_precompress_2(int, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_long) ++ H5Z_scaleoffset_precompress_2(long, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_long_long) ++ H5Z_scaleoffset_precompress_2(long long, data, d_nelmts, filavail, cd_values, minbits, minval); ++} ++ ++/* postdecompress for integer type */ ++static void ++H5Z__scaleoffset_postdecompress_i(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], uint32_t minbits, ++ unsigned long long minval) ++{ ++ long long sminval = *(long long *)&minval; /* for signed integer types */ ++ ++ if (type == t_uchar) ++ H5Z_scaleoffset_postdecompress_1(unsigned char, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ushort) ++ H5Z_scaleoffset_postdecompress_1(unsigned short, data, d_nelmts, filavail, cd_values, minbits, ++ minval); ++ else if (type == t_uint) ++ H5Z_scaleoffset_postdecompress_1(unsigned int, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ulong) ++ H5Z_scaleoffset_postdecompress_1(unsigned long, data, d_nelmts, filavail, cd_values, minbits, minval); ++ else if (type == t_ulong_long) ++ H5Z_scaleoffset_postdecompress_1(unsigned long long, data, d_nelmts, filavail, cd_values, minbits, ++ minval); ++ else if (type == t_schar) { ++ signed char *buf = (signed char *)data, filval = 0; ++ unsigned i; ++ ++ if (filavail == H5Z_SCALEOFFSET_FILL_DEFINED) { /* fill value defined */ ++ H5Z_scaleoffset_get_filval_1(signed char, cd_values, filval); ++ for (i = 0; i < d_nelmts; i++) ++ buf[i] = (signed char)((buf[i] == (((unsigned char)1 << minbits) - 1)) ? filval ++ : (buf[i] + sminval)); ++ } ++ else /* fill value undefined */ ++ for (i = 0; i < d_nelmts; i++) ++ buf[i] = (signed char)(buf[i] + sminval); ++ } ++ else if (type == t_short) ++ H5Z_scaleoffset_postdecompress_2(short, data, d_nelmts, filavail, cd_values, minbits, sminval); ++ else if (type == t_int) ++ H5Z_scaleoffset_postdecompress_2(int, data, d_nelmts, filavail, cd_values, minbits, sminval); ++ else if (type == t_long) ++ H5Z_scaleoffset_postdecompress_2(long, data, d_nelmts, filavail, cd_values, minbits, sminval); ++ else if (type == t_long_long) ++ H5Z_scaleoffset_postdecompress_2(long long, data, d_nelmts, filavail, cd_values, minbits, sminval); ++} ++ ++/* precompress for floating-point type, variable-minimum-bits method ++ success: non-negative, failure: negative 4/15/05 */ ++static herr_t ++H5Z__scaleoffset_precompress_fd(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, unsigned filavail, ++ const unsigned cd_values[], uint32_t *minbits, unsigned long long *minval, ++ double D_val) ++{ ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ if (type == t_float) ++ H5Z_scaleoffset_precompress_3(float, powf, fabsf, roundf, lroundf, llroundf, data, d_nelmts, filavail, ++ cd_values, minbits, minval, D_val); ++ else if (type == t_double) ++ H5Z_scaleoffset_precompress_3(double, pow, fabs, round, lround, llround, data, d_nelmts, filavail, ++ cd_values, minbits, minval, D_val); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} ++ ++/* postdecompress for floating-point type, variable-minimum-bits method ++ success: non-negative, failure: negative 4/15/05 */ ++static herr_t ++H5Z__scaleoffset_postdecompress_fd(void *data, unsigned d_nelmts, enum H5Z_scaleoffset_t type, ++ unsigned filavail, const unsigned cd_values[], uint32_t minbits, ++ unsigned long long minval, double D_val) ++{ ++ long long sminval = (long long)minval; /* for signed integer types */ ++ herr_t ret_value = SUCCEED; /* Return value */ ++ ++ FUNC_ENTER_PACKAGE ++ ++ if (type == t_float) ++ H5Z_scaleoffset_postdecompress_3(float, powf, data, d_nelmts, filavail, cd_values, minbits, sminval, ++ D_val); ++ else if (type == t_double) ++ H5Z_scaleoffset_postdecompress_3(double, pow, data, d_nelmts, filavail, cd_values, minbits, sminval, ++ D_val); ++ ++done: ++ FUNC_LEAVE_NOAPI(ret_value) ++} ++ ++static void ++H5Z__scaleoffset_next_byte(size_t *j, unsigned *buf_len) ++{ ++ ++(*j); ++ *buf_len = 8 * sizeof(unsigned char); ++} ++ ++static void ++H5Z__scaleoffset_decompress_one_byte(unsigned char *data, size_t data_offset, unsigned k, unsigned begin_i, ++ const unsigned char *buffer, size_t *j, unsigned *buf_len, ++ parms_atomic p, unsigned dtype_len) ++{ ++ unsigned dat_len; /* dat_len is the number of bits to be copied in each data byte */ ++ unsigned char val; /* value to be copied in each data byte */ ++ ++ /* initialize value and bits of unsigned char to be copied */ ++ val = buffer[*j]; ++ if (k == begin_i) ++ dat_len = 8 - (dtype_len - p.minbits) % 8; ++ else ++ dat_len = 8; ++ ++ if (*buf_len > dat_len) { ++ data[data_offset + k] = ++ (unsigned char)((unsigned)(val >> (*buf_len - dat_len)) & (unsigned)(~((unsigned)~0 << dat_len))); ++ *buf_len -= dat_len; ++ } /* end if */ ++ else { ++ data[data_offset + k] = ++ (unsigned char)((val & ~((unsigned)(~0) << *buf_len)) << (dat_len - *buf_len)); ++ dat_len -= *buf_len; ++ H5Z__scaleoffset_next_byte(j, buf_len); ++ if (dat_len == 0) ++ return; ++ ++ val = buffer[*j]; ++ data[data_offset + k] |= ++ (unsigned char)((unsigned)(val >> (*buf_len - dat_len)) & ~((unsigned)(~0) << dat_len)); ++ *buf_len -= dat_len; ++ } /* end else */ ++} ++ ++static void ++H5Z__scaleoffset_decompress_one_atomic(unsigned char *data, size_t data_offset, unsigned char *buffer, ++ size_t *j, unsigned *buf_len, parms_atomic p) ++{ ++ /* begin_i: the index of byte having first significant bit */ ++ unsigned begin_i; ++ unsigned dtype_len; ++ int k; ++ ++ assert(p.minbits > 0); ++ ++ dtype_len = p.size * 8; ++ ++ if (p.mem_order == H5Z_SCALEOFFSET_ORDER_LE) { /* little endian */ ++ begin_i = p.size - 1 - (dtype_len - p.minbits) / 8; ++ ++ for (k = (int)begin_i; k >= 0; k--) ++ H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, ++ p, dtype_len); ++ } ++ else { /* big endian */ ++ assert(p.mem_order == H5Z_SCALEOFFSET_ORDER_BE); ++ ++ begin_i = (dtype_len - p.minbits) / 8; ++ ++ for (k = (int)begin_i; k <= (int)(p.size - 1); k++) ++ H5Z__scaleoffset_decompress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, ++ p, dtype_len); ++ } ++} ++ ++static void ++H5Z__scaleoffset_decompress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, parms_atomic p) ++{ ++ /* i: index of data, j: index of buffer, ++ buf_len: number of bits to be filled in current byte */ ++ size_t i, j; ++ unsigned buf_len; ++ ++ /* must initialize to zeros */ ++ for (i = 0; i < d_nelmts * (size_t)p.size; i++) ++ data[i] = 0; ++ ++ /* initialization before the loop */ ++ j = 0; ++ buf_len = sizeof(unsigned char) * 8; ++ ++ /* decompress */ ++ for (i = 0; i < d_nelmts; i++) ++ H5Z__scaleoffset_decompress_one_atomic(data, i * p.size, buffer, &j, &buf_len, p); ++} ++ ++static void ++H5Z__scaleoffset_compress_one_byte(const unsigned char *data, size_t data_offset, unsigned k, ++ unsigned begin_i, unsigned char *buffer, size_t *j, unsigned *buf_len, ++ parms_atomic p, unsigned dtype_len) ++{ ++ unsigned dat_len; /* dat_len is the number of bits to be copied in each data byte */ ++ unsigned char val; /* value to be copied in each data byte */ ++ ++ /* initialize value and bits of unsigned char to be copied */ ++ val = data[data_offset + k]; ++ if (k == begin_i) ++ dat_len = 8 - (dtype_len - p.minbits) % 8; ++ else ++ dat_len = 8; ++ ++ if (*buf_len > dat_len) { ++ buffer[*j] |= (unsigned char)((val & ~((unsigned)(~0) << dat_len)) << (*buf_len - dat_len)); ++ *buf_len -= dat_len; ++ } ++ else { ++ buffer[*j] |= ++ (unsigned char)((unsigned)(val >> (dat_len - *buf_len)) & ~((unsigned)(~0) << *buf_len)); ++ dat_len -= *buf_len; ++ H5Z__scaleoffset_next_byte(j, buf_len); ++ if (dat_len == 0) ++ return; ++ ++ buffer[*j] = (unsigned char)((val & ~((unsigned)(~0) << dat_len)) << (*buf_len - dat_len)); ++ *buf_len -= dat_len; ++ } /* end else */ ++} ++ ++static void ++H5Z__scaleoffset_compress_one_atomic(unsigned char *data, size_t data_offset, unsigned char *buffer, ++ size_t *j, unsigned *buf_len, parms_atomic p) ++{ ++ /* begin_i: the index of byte having first significant bit */ ++ unsigned begin_i; ++ unsigned dtype_len; ++ int k; ++ ++ assert(p.minbits > 0); ++ ++ dtype_len = p.size * 8; ++ ++ if (p.mem_order == H5Z_SCALEOFFSET_ORDER_LE) { /* little endian */ ++ begin_i = p.size - 1 - (dtype_len - p.minbits) / 8; ++ ++ for (k = (int)begin_i; k >= 0; k--) ++ H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, p, ++ dtype_len); ++ } ++ else { /* big endian */ ++ assert(p.mem_order == H5Z_SCALEOFFSET_ORDER_BE); ++ begin_i = (dtype_len - p.minbits) / 8; ++ ++ for (k = (int)begin_i; k <= (int)(p.size - 1); k++) ++ H5Z__scaleoffset_compress_one_byte(data, data_offset, (unsigned)k, begin_i, buffer, j, buf_len, p, ++ dtype_len); ++ } ++} ++ ++static void ++H5Z__scaleoffset_compress(unsigned char *data, unsigned d_nelmts, unsigned char *buffer, size_t buffer_size, ++ parms_atomic p) ++{ ++ /* i: index of data, j: index of buffer, ++ buf_len: number of bits to be filled in current byte */ ++ size_t i, j; ++ unsigned buf_len; ++ ++ /* must initialize buffer to be zeros */ ++ for (j = 0; j < buffer_size; j++) ++ buffer[j] = 0; ++ ++ /* initialization before the loop */ ++ j = 0; ++ buf_len = sizeof(unsigned char) * 8; ++ ++ /* compress */ ++ for (i = 0; i < d_nelmts; i++) ++ H5Z__scaleoffset_compress_one_atomic(data, i * p.size, buffer, &j, &buf_len, p); ++} +-- +2.34.1 + diff --git a/meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb b/meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb index d821fb8f34..47955c876e 100644 --- a/meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb +++ b/meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb @@ -29,6 +29,7 @@ SRC_URI = " \ file://CVE-2025-2310.patch \ file://CVE-2025-44905.patch \ file://CVE-2025-2309.patch \ + file://CVE-2025-2308.patch \ " SRC_URI[sha256sum] = "019ac451d9e1cf89c0482ba2a06f07a46166caf23f60fea5ef3c37724a318e03"