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#ifdef CREATE_STRUCT_DEFINITIONS
#undef CREATE_STRUCT_DEFINITIONS
#define START(funcname, structname) \
typedef struct structname {
#define GENERIC(type, member) \
type member;
#define STRING(member) \
char *member;
#define VECTOR(member) \
ASS_Vector member;
#define BITMAPHASHKEY(member) \
BitmapHashKey member;
#define END(typedefnamename) \
} typedefnamename;
#elif defined(CREATE_COMPARISON_FUNCTIONS)
#undef CREATE_COMPARISON_FUNCTIONS
#define START(funcname, structname) \
static unsigned funcname##_compare(void *key1, void *key2, size_t key_size) \
{ \
struct structname *a = key1; \
struct structname *b = key2; \
return // conditions follow
#define GENERIC(type, member) \
a->member == b->member &&
#define STRING(member) \
strcmp(a->member, b->member) == 0 &&
#define VECTOR(member) \
a->member.x == b->member.x && a->member.y == b->member.y &&
#define BITMAPHASHKEY(member) \
bitmap_compare(&a->member, &b->member, sizeof(a->member)) &&
#define END(typedefname) \
1; \
}
#elif defined(CREATE_HASH_FUNCTIONS)
#undef CREATE_HASH_FUNCTIONS
#define START(funcname, structname) \
static unsigned funcname##_hash(void *buf, size_t len) \
{ \
struct structname *p = buf; \
unsigned hval = FNV1_32A_INIT;
#define GENERIC(type, member) \
hval = fnv_32a_buf(&p->member, sizeof(p->member), hval);
#define STRING(member) \
hval = fnv_32a_str(p->member, hval);
#define VECTOR(member) GENERIC(, member.x); GENERIC(, member.y);
#define BITMAPHASHKEY(member) { \
unsigned temp = bitmap_hash(&p->member, sizeof(p->member)); \
hval = fnv_32a_buf(&temp, sizeof(temp), hval); \
}
#define END(typedefname) \
return hval; \
}
#else
#error missing defines
#endif
// describes an outline bitmap
START(outline_bitmap, outline_bitmap_hash_key)
GENERIC(OutlineHashValue *, outline)
GENERIC(int, frx) // signed 10.22
GENERIC(int, fry) // signed 10.22
GENERIC(int, frz) // signed 10.22
GENERIC(int, fax) // signed 16.16
GENERIC(int, fay) // signed 16.16
// shift vector that was added to glyph before applying rotation
// = 0, if frx = fry = frx = 0
// = (glyph base point) - (rotation origin), otherwise
GENERIC(int, shift_x)
GENERIC(int, shift_y)
VECTOR(advance) // subpixel shift vector
END(OutlineBitmapHashKey)
// describe a clip mask bitmap
START(clip_bitmap, clip_bitmap_hash_key)
GENERIC(int, scale)
STRING(text)
END(ClipMaskHashKey)
START(glyph_metrics, glyph_metrics_hash_key)
GENERIC(ASS_Font *, font)
GENERIC(double, size)
GENERIC(int, face_index)
GENERIC(int, glyph_index)
END(GlyphMetricsHashKey)
// common outline data
START(outline_common, outline_common_hash_key)
GENERIC(unsigned, scale_x) // 16.16
GENERIC(unsigned, scale_y) // 16.16
VECTOR(outline) // border width, 26.6
GENERIC(unsigned, border_style)
GENERIC(int, scale_fix) // 16.16
GENERIC(int, advance) // 26.6
END(OutlineCommonKey)
// describes an outline glyph
START(glyph, glyph_hash_key)
GENERIC(unsigned, scale_x) // 16.16
GENERIC(unsigned, scale_y) // 16.16
VECTOR(outline) // border width, 26.6
GENERIC(unsigned, border_style)
GENERIC(int, scale_fix) // 16.16
GENERIC(int, advance) // 26.6
GENERIC(ASS_Font *, font)
GENERIC(double, size) // font size
GENERIC(int, face_index)
GENERIC(int, glyph_index)
GENERIC(int, bold)
GENERIC(int, italic)
GENERIC(unsigned, flags) // glyph decoration flags
END(GlyphHashKey)
// describes an outline drawing
START(drawing, drawing_hash_key)
GENERIC(unsigned, scale_x) // 16.16
GENERIC(unsigned, scale_y) // 16.16
VECTOR(outline) // border width, 26.6
GENERIC(unsigned, border_style)
GENERIC(int, scale_fix) // 16.16
GENERIC(int, advance) // 26.6
GENERIC(int, pbo)
GENERIC(int, scale)
STRING(text)
END(DrawingHashKey)
// describes post-combining effects
START(filter, filter_desc)
GENERIC(int, flags)
GENERIC(int, be)
GENERIC(double, blur)
VECTOR(shadow)
END(FilterDesc)
#undef START
#undef GENERIC
#undef STRING
#undef VECTOR
#undef BITMAPHASHKEY
#undef END
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