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Diffstat (limited to 'intern/cycles/util/util_boundbox.h')
| -rw-r--r-- | intern/cycles/util/util_boundbox.h | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/intern/cycles/util/util_boundbox.h b/intern/cycles/util/util_boundbox.h deleted file mode 100644 index 7fab7bd5a15..00000000000 --- a/intern/cycles/util/util_boundbox.h +++ /dev/null @@ -1,282 +0,0 @@ -/* - * Copyright 2011-2013 Blender Foundation - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef __UTIL_BOUNDBOX_H__ -#define __UTIL_BOUNDBOX_H__ - -#include <float.h> -#include <math.h> - -#include "util/util_math.h" -#include "util/util_string.h" -#include "util/util_transform.h" -#include "util/util_types.h" - -CCL_NAMESPACE_BEGIN - -/* 3D BoundBox */ - -class BoundBox { - public: - float3 min, max; - - __forceinline BoundBox() - { - } - - __forceinline BoundBox(const float3 &pt) : min(pt), max(pt) - { - } - - __forceinline BoundBox(const float3 &min_, const float3 &max_) : min(min_), max(max_) - { - } - - enum empty_t { empty = 0 }; - - __forceinline BoundBox(empty_t) - : min(make_float3(FLT_MAX, FLT_MAX, FLT_MAX)), max(make_float3(-FLT_MAX, -FLT_MAX, -FLT_MAX)) - { - } - - __forceinline void grow(const float3 &pt) - { - /* the order of arguments to min is such that if pt is nan, it will not - * influence the resulting bounding box */ - min = ccl::min(pt, min); - max = ccl::max(pt, max); - } - - __forceinline void grow(const float3 &pt, float border) - { - float3 shift = make_float3(border, border, border); - min = ccl::min(pt - shift, min); - max = ccl::max(pt + shift, max); - } - - __forceinline void grow(const BoundBox &bbox) - { - grow(bbox.min); - grow(bbox.max); - } - - __forceinline void grow_safe(const float3 &pt) - { - /* the order of arguments to min is such that if pt is nan, it will not - * influence the resulting bounding box */ - if (isfinite(pt.x) && isfinite(pt.y) && isfinite(pt.z)) { - min = ccl::min(pt, min); - max = ccl::max(pt, max); - } - } - - __forceinline void grow_safe(const float3 &pt, float border) - { - if (isfinite(pt.x) && isfinite(pt.y) && isfinite(pt.z) && isfinite(border)) { - float3 shift = make_float3(border, border, border); - min = ccl::min(pt - shift, min); - max = ccl::max(pt + shift, max); - } - } - - __forceinline void grow_safe(const BoundBox &bbox) - { - grow_safe(bbox.min); - grow_safe(bbox.max); - } - - __forceinline void intersect(const BoundBox &bbox) - { - min = ccl::max(min, bbox.min); - max = ccl::min(max, bbox.max); - } - - /* todo: avoid using this */ - __forceinline float safe_area() const - { - if (!((min.x <= max.x) && (min.y <= max.y) && (min.z <= max.z))) - return 0.0f; - - return area(); - } - - __forceinline float area() const - { - return half_area() * 2.0f; - } - - __forceinline float half_area() const - { - float3 d = max - min; - return (d.x * d.z + d.y * d.z + d.x * d.y); - } - - __forceinline float3 center() const - { - return 0.5f * (min + max); - } - - __forceinline float3 center2() const - { - return min + max; - } - - __forceinline float3 size() const - { - return max - min; - } - - __forceinline bool valid() const - { - return (min.x <= max.x) && (min.y <= max.y) && (min.z <= max.z) && - (isfinite(min.x) && isfinite(min.y) && isfinite(min.z)) && - (isfinite(max.x) && isfinite(max.y) && isfinite(max.z)); - } - - BoundBox transformed(const Transform *tfm) const - { - BoundBox result = BoundBox::empty; - - for (int i = 0; i < 8; i++) { - float3 p; - - p.x = (i & 1) ? min.x : max.x; - p.y = (i & 2) ? min.y : max.y; - p.z = (i & 4) ? min.z : max.z; - - result.grow(transform_point(tfm, p)); - } - - return result; - } - - __forceinline bool intersects(const BoundBox &other) - { - float3 center_diff = center() - other.center(), total_size = (size() + other.size()) * 0.5f; - return fabsf(center_diff.x) <= total_size.x && fabsf(center_diff.y) <= total_size.y && - fabsf(center_diff.z) <= total_size.z; - } -}; - -__forceinline BoundBox merge(const BoundBox &bbox, const float3 &pt) -{ - return BoundBox(min(bbox.min, pt), max(bbox.max, pt)); -} - -__forceinline BoundBox merge(const BoundBox &a, const BoundBox &b) -{ - return BoundBox(min(a.min, b.min), max(a.max, b.max)); -} - -__forceinline BoundBox merge(const BoundBox &a, - const BoundBox &b, - const BoundBox &c, - const BoundBox &d) -{ - return merge(merge(a, b), merge(c, d)); -} - -__forceinline BoundBox intersect(const BoundBox &a, const BoundBox &b) -{ - return BoundBox(max(a.min, b.min), min(a.max, b.max)); -} - -__forceinline BoundBox intersect(const BoundBox &a, const BoundBox &b, const BoundBox &c) -{ - return intersect(a, intersect(b, c)); -} - -/* 2D BoundBox */ - -class BoundBox2D { - public: - float left; - float right; - float bottom; - float top; - - BoundBox2D() : left(0.0f), right(1.0f), bottom(0.0f), top(1.0f) - { - } - - bool operator==(const BoundBox2D &other) const - { - return (left == other.left && right == other.right && bottom == other.bottom && - top == other.top); - } - - float width() - { - return right - left; - } - - float height() - { - return top - bottom; - } - - BoundBox2D operator*(float f) const - { - BoundBox2D result; - - result.left = left * f; - result.right = right * f; - result.bottom = bottom * f; - result.top = top * f; - - return result; - } - - BoundBox2D subset(const BoundBox2D &other) const - { - BoundBox2D subset; - - subset.left = left + other.left * (right - left); - subset.right = left + other.right * (right - left); - subset.bottom = bottom + other.bottom * (top - bottom); - subset.top = bottom + other.top * (top - bottom); - - return subset; - } - - BoundBox2D make_relative_to(const BoundBox2D &other) const - { - BoundBox2D result; - - result.left = ((left - other.left) / (other.right - other.left)); - result.right = ((right - other.left) / (other.right - other.left)); - result.bottom = ((bottom - other.bottom) / (other.top - other.bottom)); - result.top = ((top - other.bottom) / (other.top - other.bottom)); - - return result; - } - - BoundBox2D clamp(float mn = 0.0f, float mx = 1.0f) - { - BoundBox2D result; - - result.left = ccl::clamp(left, mn, mx); - result.right = ccl::clamp(right, mn, mx); - result.bottom = ccl::clamp(bottom, mn, mx); - result.top = ccl::clamp(top, mn, mx); - - return result; - } -}; - -CCL_NAMESPACE_END - -#endif /* __UTIL_BOUNDBOX_H__ */ |