forked from enlightenment/efl
parent
94d9897398
commit
f514e72be7
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@ -855,15 +855,10 @@ extern "C" {
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EAPI void evas_map_util_rotate (Evas_Map *m, double degrees, Evas_Coord cx, Evas_Coord cy);
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EAPI void evas_map_util_zoom (Evas_Map *m, double zoomx, double zoomy, Evas_Coord cx, Evas_Coord cy);
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EAPI void evas_map_util_rotate_3d (Evas_Map *m, double dx, double dy, double dz,
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Evas_Coord cx, Evas_Coord cy, Evas_Coord cz,
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Evas_Coord px, Evas_Coord py,
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Evas_Coord z0, Evas_Coord foc);
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EAPI void evas_map_util_perspective (Evas_Map *m,
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Evas_Coord px, Evas_Coord py,
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Evas_Coord z0, Evas_Coord foc);
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EAPI void evas_map_util_3d_rotate (Evas_Map *m, double dx, double dy, double dz, Evas_Coord cx, Evas_Coord cy, Evas_Coord cz);
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EAPI void evas_map_util_3d_lighting (Evas_Map *m, Evas_Coord lx, Evas_Coord ly, Evas_Coord lz, int lr, int lg, int lb, int ar, int ab, int ag);
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EAPI void evas_map_util_3d_perspective (Evas_Map *m, Evas_Coord px, Evas_Coord py, Evas_Coord z0, Evas_Coord foc);
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EAPI Eina_Bool evas_map_util_clockwise_get (Evas_Map *m);
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EAPI Evas_Map *evas_map_new (int count);
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EAPI void evas_map_smooth_set (Evas_Map *m, Eina_Bool enabled);
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@ -684,18 +684,19 @@ evas_map_util_zoom(Evas_Map *m, double zoomx, double zoomy, Evas_Coord cx, Evas_
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* xxx
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*
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* @param m map to change.
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* @param dx amount of degrees from 0.0 to 360.0 to rotate.
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* @param dx amount of degrees from 0.0 to 360.0 to rotate arount X axis.
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* @param dy amount of degrees from 0.0 to 360.0 to rotate arount Y axis.
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* @param dz amount of degrees from 0.0 to 360.0 to rotate arount Z axis.
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* @param cx rotation's center horizontal positon.
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* @param cy rotation's center vertical positon.
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* @param cz rotation's center vertical positon.
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*
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* @see evas_map_point_coord_set()
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* @see evas_map_util_zoom()
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*/
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EAPI void
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evas_map_util_rotate_3d(Evas_Map *m, double dx, double dy, double dz,
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Evas_Coord cx, Evas_Coord cy, Evas_Coord cz,
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Evas_Coord px, Evas_Coord py,
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Evas_Coord z0, Evas_Coord foc)
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evas_map_util_3d_rotate(Evas_Map *m, double dx, double dy, double dz,
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Evas_Coord cx, Evas_Coord cy, Evas_Coord cz)
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{
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double rz = (dz * M_PI) / 180.0;
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double rx = (dx * M_PI) / 180.0;
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@ -738,30 +739,92 @@ evas_map_util_rotate_3d(Evas_Map *m, double dx, double dy, double dz,
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y = yy + (y * sin(rx + M_PI_2));
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}
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x = x + cx;
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y = y + cy;
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z = z + cz;
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p->x = x + cx;
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p->y = y + cy;
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p->z = z + cz;
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}
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}
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if (foc > 0)
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/**
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* XXX
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*
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* xxx
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*
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* @param m map to change.
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* @param lx X coordinate in space of light point
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* @param ly Y coordinate in space of light point
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* @param lz Z coordinate in space of light point
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*/
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EAPI void
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evas_map_util_3d_lighting(Evas_Map *m,
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Evas_Coord lx, Evas_Coord ly, Evas_Coord lz,
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int lr, int lg, int lb, int ar, int ab, int ag)
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{
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int i;
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if (!m) return;
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for (i = 0; i < m->count; i++)
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{
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double x, y, z;
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double nx, ny, nz, x1, y1, z1, x2, y2, z2, ln, br;
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int h, j, mr, mg, mb;
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x = m->points[i].x;
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y = m->points[i].y;
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z = m->points[i].z;
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// calc normal
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h = (i + m->count - 1) % m->count; // prev point
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j = (i + 1) % m->count; // next point
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x1 = m->points[h].x - x;
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y1 = m->points[h].y - y;
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z1 = m->points[h].z - z;
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x2 = m->points[j].x - x;
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y2 = m->points[j].y - y;
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z2 = m->points[j].z - z;
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nx = (y1 * z2) - (z1 * y2);
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ny = (z1 * x2) - (x1 * z2);
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nz = (x1 * y2) - (y1 * x2);
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ln = (nx * nx) + (ny * ny) + (nz * nz);
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ln = sqrt(ln);
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if (ln != 0.0)
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{
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x = x - px;
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y = y - py;
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zz = ((z - z0) + foc);
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if (zz > 0)
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{
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x = (x * foc) / zz;
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y = (y * foc) / zz;
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}
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x = px + x;
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y = py + y;
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nx /= ln;
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ny /= ln;
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nz /= ln;
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}
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p->x = x;
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p->y = y;
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p->z = z;
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// calc point -> light vector
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x = lx - x;
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y = ly - y;
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z = lz - z;
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ln = (x * x) + (y * y) + (z * z);
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ln = sqrt(ln);
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if (ln != 0.0)
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{
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x /= ln;
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y /= ln;
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z /= ln;
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}
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// brightness - tan (0.0 -> 1.0 brightness really)
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br = (nx * x) + (ny * y) + (nz * z);
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if (br < 0.0) br = 0.0;
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mr = ar + ((lr - ar) * br);
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mg = ag + ((lg - ag) * br);
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mb = ab + ((lb - ab) * br);
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m->points[i].r = (m->points[i].r * mr) / 255;
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m->points[i].g = (m->points[i].g * mg) / 255;
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m->points[i].b = (m->points[i].b * mb) / 255;
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}
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}
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@ -773,9 +836,9 @@ evas_map_util_rotate_3d(Evas_Map *m, double dx, double dy, double dz,
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* @param m map to change.
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*/
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EAPI void
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evas_map_util_perspective(Evas_Map *m,
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Evas_Coord px, Evas_Coord py,
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Evas_Coord z0, Evas_Coord foc)
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evas_map_util_3d_perspective(Evas_Map *m,
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Evas_Coord px, Evas_Coord py,
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Evas_Coord z0, Evas_Coord foc)
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{
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Evas_Map_Point *p, *p_end;
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