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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 END(typedefnamename) \
} typedefnamename;
#elif defined(CREATE_COMPARISON_FUNCTIONS)
#undef CREATE_COMPARISON_FUNCTIONS
#define START(funcname, structname) \
static bool funcname##_compare(void *key1, void *key2) \
{ \
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 END(typedefname) \
true; \
}
#elif defined(CREATE_HASH_FUNCTIONS)
#undef CREATE_HASH_FUNCTIONS
#define START(funcname, structname) \
static uint32_t funcname##_hash(void *buf, uint32_t hval) \
{ \
struct structname *p = buf;
#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 END(typedefname) \
return hval; \
}
#else
#error missing defines
#endif
// describes an outline bitmap
START(bitmap, bitmap_hash_key)
GENERIC(OutlineHashValue *, outline)
// quantized transform matrix
VECTOR(offset)
VECTOR(matrix_x)
VECTOR(matrix_y)
VECTOR(matrix_z)
END(BitmapHashKey)
START(glyph_metrics, glyph_metrics_hash_key)
GENERIC(ASS_Font *, font)
GENERIC(double, size)
GENERIC(int, face_index)
GENERIC(int, glyph_index)
END(GlyphMetricsHashKey)
// describes an outline glyph
START(glyph, glyph_hash_key)
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)
STRING(text)
END(DrawingHashKey)
// describes an offset outline
START(border, border_hash_key)
GENERIC(OutlineHashValue *, outline)
// outline is scaled by 2^scale_ord_x|y before stroking
// to keep stoker error in allowable range
GENERIC(int, scale_ord_x)
GENERIC(int, scale_ord_y)
VECTOR(border) // border size in STROKER_ACCURACY units
END(BorderHashKey)
// describes post-combining effects
START(filter, filter_desc)
GENERIC(int, flags)
GENERIC(int, be)
GENERIC(double, blur)
VECTOR(shadow)
END(FilterDesc)
// describes glyph bitmap reference
START(bitmap_ref, bitmap_ref_key)
GENERIC(Bitmap *, bm)
GENERIC(Bitmap *, bm_o)
VECTOR(pos)
VECTOR(pos_o)
END(BitmapRef)
#undef START
#undef GENERIC
#undef STRING
#undef VECTOR
#undef END
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