forked from mia/Aegisub
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
#ifdef CREATE_STRUCT_DEFINITIONS
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#undef CREATE_STRUCT_DEFINITIONS
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#define START(funcname, structname) \
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typedef struct structname {
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#define GENERIC(type, member) \
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type member;
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#define FTVECTOR(member) \
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FT_Vector member;
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#define BITMAPHASHKEY(member) \
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bitmap_hash_key_t member;
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#define END(typedefnamename) \
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} typedefnamename;
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#elif defined(CREATE_COMPARISON_FUNCTIONS)
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#undef CREATE_COMPARISON_FUNCTIONS
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#define START(funcname, structname) \
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static int funcname##_compare(void *key1, void *key2, size_t key_size) \
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{ \
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struct structname *a = key1; \
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struct structname *b = key2; \
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return // conditions follow
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#define GENERIC(type, member) \
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a->member == b->member &&
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#define FTVECTOR(member) \
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a->member.x == b->member.x && a->member.y == b->member.y &&
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#define BITMAPHASHKEY(member) \
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bitmap_compare(&a->member, &b->member, sizeof(a->member)) &&
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#define END(typedefname) \
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1; \
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}
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#elif defined(CREATE_HASH_FUNCTIONS)
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#undef CREATE_HASH_FUNCTIONS
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#define START(funcname, structname) \
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static unsigned funcname##_hash(void *buf, size_t len) \
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{ \
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struct structname *p = buf; \
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unsigned hval = FNV1_32A_INIT;
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#define GENERIC(type, member) \
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hval = fnv_32a_buf(&p->member, sizeof(p->member), hval);
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#define FTVECTOR(member) GENERIC(, member.x); GENERIC(, member.y);
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#define BITMAPHASHKEY(member) { \
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unsigned temp = bitmap_hash(&p->member, sizeof(p->member)); \
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hval = fnv_32a_buf(&temp, sizeof(temp), hval); \
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}
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#define END(typedefname) \
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return hval; \
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}
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#else
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#error missing defines
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#endif
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// describes a bitmap; bitmaps with equivalents structs are considered identical
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START(bitmap, bipmap_hash_key_s)
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GENERIC(char, bitmap) // bool : true = bitmap, false = outline
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GENERIC(ass_font_t *, font)
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GENERIC(double, size) // font size
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GENERIC(uint32_t, ch) // character code
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FTVECTOR(outline) // border width, 16.16 fixed point value
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GENERIC(int, bold)
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GENERIC(int, italic)
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GENERIC(char, be) // blur edges
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GENERIC(double, blur) // gaussian blur
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GENERIC(unsigned, scale_x) // 16.16
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GENERIC(unsigned, scale_y) // 16.16
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GENERIC(int, frx) // signed 16.16
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GENERIC(int, fry) // signed 16.16
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GENERIC(int, frz) // signed 16.16
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GENERIC(int, fax) // signed 16.16
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GENERIC(int, fay) // signed 16.16
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// shift vector that was added to glyph before applying rotation
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// = 0, if frx = fry = frx = 0
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// = (glyph base point) - (rotation origin), otherwise
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GENERIC(int, shift_x)
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GENERIC(int, shift_y)
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FTVECTOR(advance) // subpixel shift vector
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FTVECTOR(shadow_offset) // shadow subpixel shift
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GENERIC(unsigned, drawing_hash) // hashcode of a drawing
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END(bitmap_hash_key_t)
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// describes an outline glyph
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START(glyph, glyph_hash_key_s)
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GENERIC(ass_font_t *, font)
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GENERIC(double, size) // font size
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GENERIC(uint32_t, ch) // character code
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GENERIC(int, bold)
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GENERIC(int, italic)
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GENERIC(unsigned, scale_x) // 16.16
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GENERIC(unsigned, scale_y) // 16.16
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FTVECTOR(advance) // subpixel shift vector
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FTVECTOR(outline) // border width, 16.16
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GENERIC(unsigned, drawing_hash) // hashcode of a drawing
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GENERIC(unsigned, flags) // glyph decoration flags
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END(glyph_hash_key_t)
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// Cache for composited bitmaps
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START(composite, composite_hash_key_s)
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GENERIC(int, aw)
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GENERIC(int, ah)
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GENERIC(int, bw)
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GENERIC(int, bh)
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GENERIC(int, ax)
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GENERIC(int, ay)
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GENERIC(int, bx)
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GENERIC(int, by)
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BITMAPHASHKEY(a)
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BITMAPHASHKEY(b)
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END(composite_hash_key_t)
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#undef START
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#undef GENERIC
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#undef FTVECTOR
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#undef BITMAPHASHKEY
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#undef END
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