| [ CnUnix ] in KIDS 글 쓴 이(By): Gunee (해오라비) 날 짜 (Date): 2005년 5월 18일 수요일 오후 10시 22분 13초 제 목(Title): 질문... 아래는 헤더 파일에 있는 소스입니다. error C2526: 'Spaghetti::Color::FromRGBA' : C linkage function cannot return C++ class 'Spaghetti::Color" 라는 에러메세지가 나오는데, 혹시 에러가 왜 발생하는지, 어떻게 해결할 수 있을 지 조언 좀 해주시면 감사하겠습니다. 참, VC++ 6.0, VS.NET 2003에서 컴팔했습니다. 제발, 머리 나쁜 중생에게 밝은 희망을 주세요... 아구 눈 뻑뻑해... namespace Spaghetti { class Color { public: enum { MAX = 0xff }; public: U8 r, g, b, a; public: Color() { r = g = b = a = 0; } Color(U32 rgba) { r = (rgba >> 24) & 0xff; g = (rgba >> 16) & 0xff; b = (rgba >> 8) & 0xff; a = rgba & 0xff; } Color(U8 R, U8 G, U8 B, U8 A) { r = R; g = G; b = B; a = A; } Color(const Color& other) { r = other.r; g = other.g; b = other.b; a = other.a; } Color& operator=(const Color& other) { r = other.r; g = other.g; b = other.b; a = other.a; return *this; } bool operator==(const Color& other) const { return ConvertToRGBA() == other.ConvertToRGBA(); } inline U8 A() const { return a; } inline U8 R() const { return r; } inline U8 G() const { return g; } inline U8 B() const { return b; } inline Color Mask(bool maskR, bool maskG, bool maskB, bool maskA) const { return Color(maskR ? r : 0, maskG ? g : 0, maskB ? b : 0, maskA ? a : 0); } inline U16 ConvertTo565() const { return (b & 0xF8) >> 3 | (g & 0xFC) << 3 | (r & 0xF8) << 8; } inline U32 ConvertToRGBA() const { return r << 24 | g << 16 | b << 8 | a; } inline U16 ConvertTo5551() const { return (b & 0xF8) >> 2 | (g & 0xF8) << 3 | (r & 0xF8) << 8 | (a & 0x80) >> 7; } inline U16 ConvertTo4444() const { return (r & 0xf0) << 8 | (g & 0xf0) << 4 | (b & 0xf0) | a >> 4; } static inline Color FromRGBA(U32 rgba) { U8 r = (rgba & 0xFF000000) >> 24; U8 g = (rgba & 0x00FF0000) >> 16; U8 b = (rgba & 0x0000FF00) >> 8; U8 a = (rgba & 0x000000FF); return Color(r, g, b, a); } static inline Color From4444(U16 u4444) { U8 r = (u4444 & 0xF000u) >> 8; U8 g = (u4444 & 0x0F00u) >> 4; U8 b = (u4444 & 0x00F0u); U8 a = (u4444 & 0x000Fu) << 4; r |= r >> 4; g |= g >> 4; b |= b >> 4; a |= a >> 4; return Color(r, g, b, a); } static inline Color From565(U16 u565) { U8 b = (u565 & 0x001Fu) << 3; U8 g = (u565 & 0x07E0u) >> 3; U8 r = (u565 & 0xF800u) >> 8; r |= r >> 5; g |= g >> 6; b |= b >> 5; return Color(r, g, b, 0xFF); } static inline Color From565A(U16 u565, U8 alpha) { U8 b = (u565 & 0x001Fu) << 3; U8 g = (u565 & 0x07E0u) >> 3; U8 r = (u565 & 0xF800u) >> 8; r |= r >> 5; g |= g >> 6; b |= b >> 5; return Color(r, g, b, alpha); } static inline Color From5551(U16 u5551) { U8 b = (u5551 & 0x003Eu) << 2; U8 g = (u5551 & 0x07C0u) >> 3; U8 r = (u5551 & 0xF800u) >> 8; U8 a = (u5551 & 0x0001u) << 7; r |= r >> 5; g |= g >> 5; b |= b >> 5; if (a) a |= 0x7f; return Color(r, g, b, a); } static inline Color FromLuminanceAlpha(U16 la) { U8 l = (la & 0xff); U8 a = (la & 0xff00) >> 8; return Color(l, l, l, a); } Color operator+(const Color& other) const { return Color(clamp(r + other.r), clamp(g + other.g), clamp(b + other.b), clamp(a + other.a)); } Color operator*(const Color& factor) const { return Color(mul(r, factor.r), mul(g, factor.g), mul(b, factor.b), mul(a, factor.a)); } static inline Color Blend(const Color& src, const Color& dst, U32 alpha) { U32 oneMinusAlpha = 0x100 - alpha; return Color((src.R() * alpha + dst.R() * oneMinusAlpha) >> 8, (src.G() * alpha + dst.G() * oneMinusAlpha) >> 8, (src.B() * alpha + dst.B() * oneMinusAlpha) >> 8, src.A()); } static inline Color BlendAlpha(const Color& src, const Color& dst, U32 alpha) { U32 oneMinusAlpha = 0x100 - alpha; return Color((src.R() * alpha + dst.R() * oneMinusAlpha) >> 8, (src.G() * alpha + dst.G() * oneMinusAlpha) >> 8, (src.B() * alpha + dst.B() * oneMinusAlpha) >> 8, (src.A() * alpha + dst.A() * oneMinusAlpha) >> 8); } static inline Color Average(const Color & a, const Color & b) { return Color((a.R() + b.R()) / 2, (a.G() + b.G()) / 2, (a.B() + b.B()) / 2, (a.A() + b.A()) / 2); } static inline Color Average(const Color & a, const Color & b, const Color & c, const Color & d) { return Color((a.R() + b.R() + c.R() + d.R()) / 4, (a.G() + b.G() + c.G() + d.G()) / 4, (a.B() + b.B() + c.B() + d.B()) / 4, (a.A() + b.A() + c.A() + d.A()) / 4); } private: static inline U8 clamp(U16 value) { return (value > MAX) ? (U8) MAX : (U8) value; } static inline U8 mul(U8 color, U8 factor) { U16 prod = color * factor; return (prod + (prod >> 7)) >> 8; } }; } Fear can hold you prisoner, Hope will set you free !!! |