3dcam-headers/include/macros.h

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// MACROS
// swap(x, y, buffer)
#define SWAP(a,b,c) {(c)=(a); (a)=(b); (b)=(c);}
// dotproduct of two vectors
#define dotProduct(v0, v1) \
(v0).vx * (v1).vx + \
(v0).vy * (v1).vy + \
(v0).vz * (v1).vz
// return min value
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#define min(a,b) \
(a)-(b)>0?(b):(a)
// return max value
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#define max(a,b) \
(a)-(b)>0?(a):(b)
// add 2 vector and store in a third vector
#define addVector2(v0, v1, v2) \
(v2)->vx = (v0)->vx + (v1)->vx, \
(v2)->vy = (v0)->vy + (v1)->vy, \
(v2)->vz = (v0)->vz + (v1)->vz \
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// substract vector
#define subVector(v0, v1) \
(v0).vx - (v1).vx, \
(v0).vy - (v1).vy, \
(v0).vz - (v1).vz
#define normalizeVector(v) \
((v)->vx << 12) >> 8, \
((v)->vy << 12) >> 8, \
((v)->vz << 12) >> 8
// GTE Macros
#define gte_RotAverageNclip4(r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12) \
{ gte_ldv3(r1,r2,r3); \
gte_rtpt(); \
gte_stflg(r11); \
gte_nclip(); \
gte_ldv0(r4); \
gte_stopz(r12); \
gte_stsxy3(r5,r6,r7); \
gte_rtps(); \
gte_stsxy(r8); \
gte_stdp(r9); \
gte_avsz4(); \
gte_stotz(r10); }
// convert Little endian to Big endian
#define SWAP_ENDIAN32(x) (((x)>>24) | (((x)>>8) & 0xFF00) | (((x)<<8) & 0x00FF0000) | ((x)<<24))