b6b7fffc35
This reverts commit05ce2817f2. Reason for revert: Fixing the build Original change's description: > Revert "Removing ICU dependencies from skparagraph BUILD.gn file" > > This reverts commitf1711adb1a. > > Reason for revert: Build break > > Original change's description: > > Removing ICU dependencies from skparagraph BUILD.gn file > > > > (and from the sources, too) > > > > Change-Id: I9d8ff51c91aad4b770b1f183c04734d31252b851 > > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/313148 > > Commit-Queue: Julia Lavrova <jlavrova@google.com> > > Reviewed-by: Ben Wagner <bungeman@google.com> > > TBR=bungeman@google.com,jlavrova@google.com > > Change-Id: I1fce2436855e3e2a4cb7d1d7204b3ae49fd530e8 > No-Presubmit: true > No-Tree-Checks: true > No-Try: true > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/314540 > Reviewed-by: Julia Lavrova <jlavrova@google.com> > Commit-Queue: Julia Lavrova <jlavrova@google.com> TBR=bungeman@google.com,jlavrova@google.com Change-Id: I13d78d75698df47930adc2514d1328abc556a209 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316444 Reviewed-by: Kevin Lubick <kjlubick@google.com> Commit-Queue: Julia Lavrova <jlavrova@google.com>
83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
// Copyright 2018 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#ifndef SkUTF_DEFINED
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#define SkUTF_DEFINED
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#include "include/core/SkTypes.h"
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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typedef int32_t SkUnichar;
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namespace SkUTF {
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/** Given a sequence of UTF-8 bytes, return the number of unicode codepoints.
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If the sequence is invalid UTF-8, return -1.
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*/
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SK_SPI int CountUTF8(const char* utf8, size_t byteLength);
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/** Given a sequence of aligned UTF-16 characters in machine-endian form,
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return the number of unicode codepoints. If the sequence is invalid
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UTF-16, return -1.
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*/
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SK_SPI int CountUTF16(const uint16_t* utf16, size_t byteLength);
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/** Given a sequence of aligned UTF-32 characters in machine-endian form,
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return the number of unicode codepoints. If the sequence is invalid
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UTF-32, return -1.
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*/
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SK_SPI int CountUTF32(const int32_t* utf32, size_t byteLength);
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/** Given a sequence of UTF-8 bytes, return the first unicode codepoint.
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The pointer will be incremented to point at the next codepoint's start. If
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invalid UTF-8 is encountered, set *ptr to end and return -1.
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*/
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SK_SPI SkUnichar NextUTF8(const char** ptr, const char* end);
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/** Given a sequence of aligned UTF-16 characters in machine-endian form,
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return the first unicode codepoint. The pointer will be incremented to
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point at the next codepoint's start. If invalid UTF-16 is encountered,
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set *ptr to end and return -1.
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*/
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SK_SPI SkUnichar NextUTF16(const uint16_t** ptr, const uint16_t* end);
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/** Given a sequence of aligned UTF-32 characters in machine-endian form,
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return the first unicode codepoint. The pointer will be incremented to
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point at the next codepoint's start. If invalid UTF-32 is encountered,
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set *ptr to end and return -1.
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*/
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SK_SPI SkUnichar NextUTF32(const int32_t** ptr, const int32_t* end);
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constexpr unsigned kMaxBytesInUTF8Sequence = 4;
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/** Convert the unicode codepoint into UTF-8. If `utf8` is non-null, place the
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result in that array. Return the number of bytes in the result. If `utf8`
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is null, simply return the number of bytes that would be used. For invalid
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unicode codepoints, return 0.
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*/
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SK_SPI size_t ToUTF8(SkUnichar uni, char utf8[kMaxBytesInUTF8Sequence] = nullptr);
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/** Convert the unicode codepoint into UTF-16. If `utf16` is non-null, place
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the result in that array. Return the number of UTF-16 code units in the
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result (1 or 2). If `utf16` is null, simply return the number of code
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units that would be used. For invalid unicode codepoints, return 0.
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*/
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SK_SPI size_t ToUTF16(SkUnichar uni, uint16_t utf16[2] = nullptr);
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/** Returns the number of resulting UTF16 values needed to convert the src utf8 sequence.
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* If dst is not null, it is filled with the corresponding values up to its capacity.
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* If there is an error, -1 is returned and the dst[] buffer is undefined.
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*/
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SK_SPI int UTF8ToUTF16(uint16_t dst[], int dstCapacity, const char src[], size_t srcByteLength);
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/** Returns the number of resulting UTF8 values needed to convert the src utf16 sequence.
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* If dst is not null, it is filled with the corresponding values up to its capacity.
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* If there is an error, -1 is returned and the dst[] buffer is undefined.
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*/
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SK_SPI int UTF16ToUTF8(char dst[], int dstCapacity, const uint16_t src[], size_t srcLength);
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} // namespace SkUTF
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#endif // SkUTF_DEFINED
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