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HarfBuzz: Update to upstream version 2.7.4

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This commit is contained in:
bruvzg
2020-12-23 23:28:02 +02:00
parent ef4e625918
commit 86006ce476
62 changed files with 6733 additions and 3230 deletions
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35
thirdparty/harfbuzz/src/hb-blob.h vendored
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@@ -36,25 +36,34 @@
HB_BEGIN_DECLS
/*
* Note re various memory-modes:
/**
* hb_memory_mode_t:
* @HB_MEMORY_MODE_DUPLICATE
* @HB_MEMORY_MODE_READONLY
* @HB_MEMORY_MODE_WRITABLE
* @HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE
*
* Data type holding the memory modes available to
* client programs.
*
* Regarding these various memory-modes:
*
* - In no case shall the HarfBuzz client modify memory
* that is passed to HarfBuzz in a blob. If there is
* any such possibility, MODE_DUPLICATE should be used
* any such possibility, @HB_MEMORY_MODE_DUPLICATE should be used
* such that HarfBuzz makes a copy immediately,
*
* - Use MODE_READONLY otherwise, unless you really really
* - Use @HB_MEMORY_MODE_READONLY otherwise, unless you really really
* really know what you are doing,
*
* - MODE_WRITABLE is appropriate if you really made a
* - @HB_MEMORY_MODE_WRITABLE is appropriate if you really made a
* copy of data solely for the purpose of passing to
* HarfBuzz and doing that just once (no reuse!),
*
* - If the font is mmap()ed, it's ok to use
* READONLY_MAY_MAKE_WRITABLE, however, using that mode
* correctly is very tricky. Use MODE_READONLY instead.
*/
* - If the font is mmap()ed, it's okay to use
* @HB_MEMORY_READONLY_MAY_MAKE_WRITABLE, however, using that mode
* correctly is very tricky. Use @HB_MEMORY_MODE_READONLY instead.
**/
typedef enum {
HB_MEMORY_MODE_DUPLICATE,
HB_MEMORY_MODE_READONLY,
@@ -62,6 +71,14 @@ typedef enum {
HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE
} hb_memory_mode_t;
/**
* hb_blob_t:
*
* Data type for blobs. A blob wraps a chunk of binary
* data and facilitates its lifecycle management between
* a client program and HarfBuzz.
*
**/
typedef struct hb_blob_t hb_blob_t;
HB_EXTERN hb_blob_t *