diff options
Diffstat (limited to 'src/harfbuzz-shaper.h')
| -rw-r--r-- | src/harfbuzz-shaper.h | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/src/harfbuzz-shaper.h b/src/harfbuzz-shaper.h index f7c7714..470e27b 100644 --- a/src/harfbuzz-shaper.h +++ b/src/harfbuzz-shaper.h @@ -34,6 +34,18 @@ HB_BEGIN_HEADER +/* + using anything else than signed or unsigned for bitfields in C is non standard, + but accepted by almost all compilers. And it gives a significant reduction in + memory consumption as HB_CharAttributes and HB_GlyphAttributes will not have + a 4 byte alignment +*/ +#ifdef __xlC__ +typedef unsigned hb_bitfield; +#else +typedef hb_uint8 hb_bitfield; +#endif + typedef enum { HB_Script_Common, HB_Script_Greek, @@ -123,12 +135,12 @@ typedef enum { typedef struct { - /*HB_LineBreakType*/ unsigned lineBreakType :2; - /*HB_Bool*/ unsigned whiteSpace :1; /* A unicode whitespace character, except NBSP, ZWNBSP */ - /*HB_Bool*/ unsigned charStop :1; /* Valid cursor position (for left/right arrow) */ - /*HB_Bool*/ unsigned wordBoundary :1; - /*HB_Bool*/ unsigned sentenceBoundary :1; - unsigned unused :2; + /*HB_LineBreakType*/ hb_bitfield lineBreakType :2; + /*HB_Bool*/ hb_bitfield whiteSpace :1; /* A unicode whitespace character, except NBSP, ZWNBSP */ + /*HB_Bool*/ hb_bitfield charStop :1; /* Valid cursor position (for left/right arrow) */ + /*HB_Bool*/ hb_bitfield wordBoundary :1; + /*HB_Bool*/ hb_bitfield sentenceBoundary :1; + hb_bitfield unused :2; } HB_CharAttributes; void HB_GetCharAttributes(const HB_UChar16 *string, hb_uint32 stringLength, @@ -181,12 +193,12 @@ typedef enum { * it like that. If this is a problem please tell Trolltech :) */ typedef struct { - unsigned justification :4; /* Justification class */ - unsigned clusterStart :1; /* First glyph of representation of cluster */ - unsigned mark :1; /* needs to be positioned around base char */ - unsigned zeroWidth :1; /* ZWJ, ZWNJ etc, with no width */ - unsigned dontPrint :1; - unsigned combiningClass :8; + hb_bitfield justification :4; /* Justification class */ + hb_bitfield clusterStart :1; /* First glyph of representation of cluster */ + hb_bitfield mark :1; /* needs to be positioned around base char */ + hb_bitfield zeroWidth :1; /* ZWJ, ZWNJ etc, with no width */ + hb_bitfield dontPrint :1; + hb_bitfield combiningClass :8; } HB_GlyphAttributes; typedef struct HB_FaceRec_ { |