62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*==================*
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* TYPE DEFINITIONS *
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*==================*/
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#ifndef _gdefs_H_INCLUDED
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#define _gdefs_H_INCLUDED
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typedef unsigned char byte;
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typedef unsigned short word;
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#ifndef YES
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typedef char BOOL;
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#define YES (BOOL)1
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#define NO (BOOL)0
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#endif //YES
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#ifndef WIN32
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#define strdup NXCopyStringBuffer
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#endif //strdup
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#ifdef WIN32
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#define strncasecmp strnicmp
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#define strcasecmp stricmp
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#define random rand
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#endif
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#define dabs(a) (((a)<0) ? -(a) : (a))
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#define CLAMP(v,l,h) ((v)<(l) ? (l) : (v)>(h) ? (h) : v)
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#define swap(a,b) { a^=b; b^=a; a^=b; }
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#define lum(a) ( 0.2990*(a>>16) + 0.5870*((a>>8)&0xff) + 0.1140*(a&0xff) )
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#define gsign(a) ((a) < 0 ? -1 : 1)
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#define mnint(a) ((a) < 0 ? (int)(a - 0.5) : (int)(a + 0.5))
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#define mmax(a, b) ((a) > (b) ? (a) : (b))
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#define mmin(a, b) ((a) < (b) ? (a) : (b))
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#define glimit(x) ( (x)<(0) ? (0) : (x)>(255) ? (255) : x)
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#define RGBDIST( src0, src1 ) ( ((src0[0]-src1[0])*(src0[0]-src1[0])) + \
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((src0[1]-src1[1])*(src0[1]-src1[1])) + \
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((src0[2]-src1[2])*(src0[2]-src1[2])) )
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#define RGBADIST( src0, src1 ) ( ((src0[0]-src1[0])*(src0[0]-src1[0])) + \
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((src0[1]-src1[1])*(src0[1]-src1[1])) + \
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((src0[2]-src1[2])*(src0[2]-src1[2])) + \
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((src0[3]-src1[3])*(src0[3]-src1[3])) )
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#define Y_FROM_RGB(src) (RMULT*src[0] + GMULT*src[1] + BMULT*src[2])
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#define U_FROM_RGB(src) (RIEMULT*src[0] + GIEMULT*src[1] + BIEMULT*src[2])
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#define V_FROM_RGB(src) (RQEMULT*src[0] + GQEMULT*src[1] + BQEMULT*src[2])
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#define YUVDIST(a,b) ( ((Y_FROM_RGB(a) - Y_FROM_RGB(b)) * (Y_FROM_RGB(a) - Y_FROM_RGB(b))) + \
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((U_FROM_RGB(a) - U_FROM_RGB(b)) * (U_FROM_RGB(a) - U_FROM_RGB(b))) + \
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((V_FROM_RGB(a) - V_FROM_RGB(b)) * (V_FROM_RGB(a) - V_FROM_RGB(b))) + \
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((a[3] - b[3]) * (a[3] - b[3])) )
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#define RMULT 0.2990 // use these for televisions
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#define GMULT 0.5870
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#define BMULT 0.1140
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#define RIEMULT -0.16874
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#define RQEMULT 0.50000
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#define GIEMULT -0.33126
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#define GQEMULT -0.41869
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#define BIEMULT 0.50000
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#define BQEMULT -0.08131
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#endif //_gdefs_H_INCLUDED
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