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-rw-r--r--rwsdk/include/d3d8/rtbezpat.h401
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diff --git a/rwsdk/include/d3d8/rtbezpat.h b/rwsdk/include/d3d8/rtbezpat.h
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-/*
- * Data structures for rtbezpat toolkit
- * Copyright (c) Criterion Software Limited
- */
-
-#if (!defined(RTBEZPAT_H))
-#define RTBEZPAT_H
-
-/**
- * \defgroup rtbezpatch RtBezPat
- * \ingroup rttool
- *
- * The Bezier Patch Toolkit is a group of functions that support the way
- * RenderWare processes patches.
- */
-
-/**
- * \ingroup rtbezpatch
- * \typedef RtBezierV4d
- * typedef for struct RtBezierV4d.
- */
-typedef struct RtBezierV4d RtBezierV4d;
-
-/**
- * \ingroup rtbezpatch
- * \struct RtBezierV4d
- * This type represents 4d points and vectors specified by
- * the (x, y, z, w) coordinates of a 4d point or
- * the (x, y, z, w) components of a 4d vector.
- */
-struct RtBezierV4d
-{
- RwReal x;
- /**< X value */
- RwReal y;
- /**< Y value */
- RwReal z;
- /**< Z value */
- RwReal w;
- /**< W value */
-};
-
-/**
- * \ingroup rtbezpatch
- * \typedef RtBezierRow
- * typedef for a row of vectors.
- * RtBezierRow is an array of 4 vectors
- */
-typedef RtBezierV4d RtBezierRow[4];
-
-/**
- * \ingroup rtbezpatch
- * \typedef RtBezierMatrix
- * typedef for a matrix of 4*4 vectors.
- * RtBezierMatrix is an array of 4 rows.
- */
-typedef RtBezierRow RtBezierMatrix[4];
-
-/*
- * Bernstein polynomials;
- */
-
-#define RtBern03(_u, _cu) ( (_cu) * (_cu) * (_cu) )
-#define RtBern13(_u, _cu) ( 3 * (_u) * (_cu) * (_cu) )
-#define RtBern23(_u, _cu) ( 3 * (_u) * (_u) * (_cu) )
-#define RtBern33(_u, _cu) ( (_u) * (_u) * (_u) )
-
-#define RtBezierQuadSample3dMacro(_out, _P, _u, _v) \
-MACRO_START \
-{ \
- const RtBezierV4d * const P0 = &(_P)[0][0]; \
- const RtBezierV4d * const P1 = &(_P)[1][0]; \
- const RtBezierV4d * const P2 = &(_P)[2][0]; \
- const RtBezierV4d * const P3 = &(_P)[3][0]; \
- const RwReal _pu = (_u); \
- const RwReal _cu = ((RwReal)1) - _pu; \
- const RwReal B03u = RtBern03(_pu,_cu); \
- const RwReal B13u = RtBern13(_pu,_cu); \
- const RwReal B23u = RtBern23(_pu,_cu); \
- const RwReal B33u = RtBern33(_pu,_cu); \
- const RwReal _pv = (_v); \
- const RwReal _cv = ((RwReal)1) - _pv; \
- const RwReal B03v = RtBern03(_pv,_cv); \
- const RwReal B13v = RtBern13(_pv,_cv); \
- const RwReal B23v = RtBern23(_pv,_cv); \
- const RwReal B33v = RtBern33(_pv,_cv); \
- RtBezierRow A; \
- \
- A[0].x = B03u*P0[0].x + B13u*P1[0].x + B23u*P2[0].x + B33u*P3[0].x; \
- A[0].y = B03u*P0[0].y + B13u*P1[0].y + B23u*P2[0].y + B33u*P3[0].y; \
- A[0].z = B03u*P0[0].z + B13u*P1[0].z + B23u*P2[0].z + B33u*P3[0].z; \
- A[1].x = B03u*P0[1].x + B13u*P1[1].x + B23u*P2[1].x + B33u*P3[1].x; \
- A[1].y = B03u*P0[1].y + B13u*P1[1].y + B23u*P2[1].y + B33u*P3[1].y; \
- A[1].z = B03u*P0[1].z + B13u*P1[1].z + B23u*P2[1].z + B33u*P3[1].z; \
- A[2].x = B03u*P0[2].x + B13u*P1[2].x + B23u*P2[2].x + B33u*P3[2].x; \
- A[2].y = B03u*P0[2].y + B13u*P1[2].y + B23u*P2[2].y + B33u*P3[2].y; \
- A[2].z = B03u*P0[2].z + B13u*P1[2].z + B23u*P2[2].z + B33u*P3[2].z; \
- A[3].x = B03u*P0[3].x + B13u*P1[3].x + B23u*P2[3].x + B33u*P3[3].x; \
- A[3].y = B03u*P0[3].y + B13u*P1[3].y + B23u*P2[3].y + B33u*P3[3].y; \
- A[3].z = B03u*P0[3].z + B13u*P1[3].z + B23u*P2[3].z + B33u*P3[3].z; \
- \
- (_out)->x = A[0].x*B03v + A[1].x*B13v + A[2].x*B23v + A[3].x*B33v; \
- (_out)->y = A[0].y*B03v + A[1].y*B13v + A[2].y*B23v + A[3].y*B33v; \
- (_out)->z = A[0].z*B03v + A[1].z*B13v + A[2].z*B23v + A[3].z*B33v; \
-} \
-MACRO_STOP
-
-#define RtBezierQuadDifferenceStepU3dMacro(_row) \
-MACRO_START \
-{ \
- (_row)[0].x += (_row)[1].x; \
- (_row)[0].y += (_row)[1].y; \
- (_row)[0].z += (_row)[1].z; \
- \
- (_row)[1].x += (_row)[2].x; \
- (_row)[1].y += (_row)[2].y; \
- (_row)[1].z += (_row)[2].z; \
- \
- (_row)[2].x += (_row)[3].x; \
- (_row)[2].y += (_row)[3].y; \
- (_row)[2].z += (_row)[3].z; \
- \
-} \
-MACRO_STOP
-
-#define RtBezierQuadDifferenceStepU4dMacro(_row) \
-MACRO_START \
-{ \
- (_row)[0].x += (_row)[1].x; \
- (_row)[0].y += (_row)[1].y; \
- (_row)[0].z += (_row)[1].z; \
- (_row)[0].w += (_row)[1].w; \
- \
- (_row)[1].x += (_row)[2].x; \
- (_row)[1].y += (_row)[2].y; \
- (_row)[1].z += (_row)[2].z; \
- (_row)[1].w += (_row)[2].w; \
- \
- (_row)[2].x += (_row)[3].x; \
- (_row)[2].y += (_row)[3].y; \
- (_row)[2].z += (_row)[3].z; \
- (_row)[2].w += (_row)[3].w; \
- \
-} \
-MACRO_STOP
-
-#define RtBezierQuadDifferenceStepV3dMacro(_mat) \
-MACRO_START \
-{ \
- RtBezierV4d * const m0 = &(_mat)[0][0]; \
- RtBezierV4d * const m1 = &(_mat)[1][0]; \
- RtBezierV4d * const m2 = &(_mat)[2][0]; \
- RtBezierV4d * const m3 = &(_mat)[3][0]; \
- \
- /* (_row) 0 */ \
- m0[0].x += m1[0].x; \
- m0[0].y += m1[0].y; \
- m0[0].z += m1[0].z; \
- \
- m0[1].x += m1[1].x; \
- m0[1].y += m1[1].y; \
- m0[1].z += m1[1].z; \
- \
- m0[2].x += m1[2].x; \
- m0[2].y += m1[2].y; \
- m0[2].z += m1[2].z; \
- \
- m0[3].x += m1[3].x; \
- m0[3].y += m1[3].y; \
- m0[3].z += m1[3].z; \
- \
- /* (_row) 1 */ \
- m1[0].x += m2[0].x; \
- m1[0].y += m2[0].y; \
- m1[0].z += m2[0].z; \
- \
- m1[1].x += m2[1].x; \
- m1[1].y += m2[1].y; \
- m1[1].z += m2[1].z; \
- \
- m1[2].x += m2[2].x; \
- m1[2].y += m2[2].y; \
- m1[2].z += m2[2].z; \
- \
- m1[3].x += m2[3].x; \
- m1[3].y += m2[3].y; \
- m1[3].z += m2[3].z; \
- \
- /* (_row) 2 */ \
- m2[0].x += m3[0].x; \
- m2[0].y += m3[0].y; \
- m2[0].z += m3[0].z; \
- \
- m2[1].x += m3[1].x; \
- m2[1].y += m3[1].y; \
- m2[1].z += m3[1].z; \
- \
- m2[2].x += m3[2].x; \
- m2[2].y += m3[2].y; \
- m2[2].z += m3[2].z; \
- \
- m2[3].x += m3[3].x; \
- m2[3].y += m3[3].y; \
- m2[3].z += m3[3].z; \
-} \
-MACRO_STOP
-
-#define RtBezierQuadDifferenceStepV4dMacro(_mat) \
-MACRO_START \
-{ \
- RtBezierV4d * const m0 = &(_mat)[0][0]; \
- RtBezierV4d * const m1 = &(_mat)[1][0]; \
- RtBezierV4d * const m2 = &(_mat)[2][0]; \
- RtBezierV4d * const m3 = &(_mat)[3][0]; \
- \
- /* (_row) 0 */ \
- m0[0].x += m1[0].x; \
- m0[0].y += m1[0].y; \
- m0[0].z += m1[0].z; \
- m0[0].w += m1[0].w; \
- \
- m0[1].x += m1[1].x; \
- m0[1].y += m1[1].y; \
- m0[1].z += m1[1].z; \
- m0[1].w += m1[1].w; \
- \
- m0[2].x += m1[2].x; \
- m0[2].y += m1[2].y; \
- m0[2].z += m1[2].z; \
- m0[2].w += m1[2].w; \
- \
- m0[3].x += m1[3].x; \
- m0[3].y += m1[3].y; \
- m0[3].z += m1[3].z; \
- m0[3].w += m1[3].w; \
- \
- /* (_row) 1 */ \
- m1[0].x += m2[0].x; \
- m1[0].y += m2[0].y; \
- m1[0].z += m2[0].z; \
- m1[0].w += m2[0].w; \
- \
- m1[1].x += m2[1].x; \
- m1[1].y += m2[1].y; \
- m1[1].z += m2[1].z; \
- m1[1].w += m2[1].w; \
- \
- m1[2].x += m2[2].x; \
- m1[2].y += m2[2].y; \
- m1[2].z += m2[2].z; \
- m1[2].w += m2[2].w; \
- \
- m1[3].x += m2[3].x; \
- m1[3].y += m2[3].y; \
- m1[3].z += m2[3].z; \
- m1[3].w += m2[3].w; \
- \
- /* (_row) 2 */ \
- m2[0].x += m3[0].x; \
- m2[0].y += m3[0].y; \
- m2[0].z += m3[0].z; \
- m2[0].w += m3[0].w; \
- \
- m2[1].x += m3[1].x; \
- m2[1].y += m3[1].y; \
- m2[1].z += m3[1].z; \
- m2[1].w += m3[1].w; \
- \
- m2[2].x += m3[2].x; \
- m2[2].y += m3[2].y; \
- m2[2].z += m3[2].z; \
- m2[2].w += m3[2].w; \
- \
- m2[3].x += m3[3].x; \
- m2[3].y += m3[3].y; \
- m2[3].z += m3[3].z; \
- m2[3].w += m3[3].w; \
-} \
-MACRO_STOP
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-extern void
-RtBezierQuadControlFit3d(RtBezierMatrix B,
- RtBezierMatrix P);
-
-extern void
-RtBezierQuadBernsteinWeight3d(RtBezierMatrix W,
- RtBezierMatrix B);
-
-extern void
-RtBezierQuadBernsteinWeight4d(RtBezierMatrix W,
- RtBezierMatrix B);
-
-extern void
-RtBezierQuadPointDifference3d(RtBezierMatrix D,
- RtBezierMatrix W,
- RwReal PointU,
- RwReal PointV,
- RwReal StepU,
- RwReal stepV);
-
-extern void
-RtBezierQuadPointDifference4d(RtBezierMatrix D,
- RtBezierMatrix W,
- RwReal PointU,
- RwReal PointV,
- RwReal StepU,
- RwReal stepV);
-
-extern void
-RtBezierQuadOriginDifference3d(RtBezierMatrix D,
- RtBezierMatrix W,
- RwReal stepU,
- RwReal setpV);
-
-extern void
-RtBezierQuadOriginDifference4d(RtBezierMatrix D,
- RtBezierMatrix W,
- RwReal stepU,
- RwReal setpV);
-
-#if ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) )
-
-extern void
-RtBezierQuadSample3d(RwV3d * out,
- RtBezierMatrix B,
- RwReal u,
- RwReal v);
-
-extern void RtBezierQuadDifferenceStepU3d(RtBezierRow row);
-extern void RtBezierQuadDifferenceStepU4d(RtBezierRow row);
-
-extern void RtBezierQuadDifferenceStepV3d(RtBezierMatrix mat);
-extern void RtBezierQuadDifferenceStepV4d(RtBezierMatrix mat);
-
-
-#else /* ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) ) */
-
-#define RtBezierQuadSample3d(_out, _P, _u, _v) \
- RtBezierQuadSample3dMacro(_out, _P, _u, _v)
-
-#define RtBezierQuadDifferenceStepU3d(_row) \
- RtBezierQuadDifferenceStepU3dMacro(_row)
-
-#define RtBezierQuadDifferenceStepU4d(_row) \
- RtBezierQuadDifferenceStepU4dMacro(_row)
-
-#define RtBezierQuadDifferenceStepV3d(_mat) \
- RtBezierQuadDifferenceStepV3dMacro(_mat)
-
-#define RtBezierQuadDifferenceStepV4d(_mat) \
- RtBezierQuadDifferenceStepV4dMacro(_mat)
-
-#endif /* ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) ) */
-
-/*
- *
- */
-
-extern void
-RtBezierTriangleControlFit3d(RtBezierMatrix T, RtBezierMatrix P);
-
-extern void
-RtBezierQuadFromTriangle(RtBezierMatrix Q, RtBezierMatrix T);
-
-extern void
-RtBezierQuadTangent(RtBezierMatrix D,
- RwReal theta,
- RtBezierMatrix P);
-
-extern void
-RtBezierQuadTangentPair(RtBezierMatrix Dt,
- RtBezierMatrix Dp,
- RwReal theta,
- RtBezierMatrix P);
-
-extern void
-RtBezierQuadGetNormals(RtBezierMatrix N,
- RtBezierMatrix B);
-
-#if (defined(RWDEBUG) && defined(RWVERBOSE))
-
-extern void
-_rtBezierGnuPlot(RtBezierMatrix B,
- RwChar * name,
- RwChar * title);
-
-#else /* (defined(RWDEBUG) && defined(RWVERBOSE)) */
-
-#define _rtBezierGnuPlot(B, name, title) /* No-op */
-
-#endif /* (defined(RWDEBUG) && defined(RWVERBOSE)) */
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* (!defined(RTBEZPAT_H)) */