git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
This commit is contained in:
214
deps/juce/modules/juce_box2d/box2d/Common/b2BlockAllocator.cpp
vendored
Normal file
214
deps/juce/modules/juce_box2d/box2d/Common/b2BlockAllocator.cpp
vendored
Normal file
@ -0,0 +1,214 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2BlockAllocator.h"
|
||||
|
||||
using namespace std;
|
||||
|
||||
int32 b2BlockAllocator::s_blockSizes[b2_blockSizes] =
|
||||
{
|
||||
16, // 0
|
||||
32, // 1
|
||||
64, // 2
|
||||
96, // 3
|
||||
128, // 4
|
||||
160, // 5
|
||||
192, // 6
|
||||
224, // 7
|
||||
256, // 8
|
||||
320, // 9
|
||||
384, // 10
|
||||
448, // 11
|
||||
512, // 12
|
||||
640, // 13
|
||||
};
|
||||
uint8 b2BlockAllocator::s_blockSizeLookup[b2_maxBlockSize + 1];
|
||||
bool b2BlockAllocator::s_blockSizeLookupInitialized;
|
||||
|
||||
struct b2Chunk
|
||||
{
|
||||
int32 blockSize;
|
||||
b2Block* blocks;
|
||||
};
|
||||
|
||||
struct b2Block
|
||||
{
|
||||
b2Block* next;
|
||||
};
|
||||
|
||||
b2BlockAllocator::b2BlockAllocator()
|
||||
{
|
||||
b2Assert(b2_blockSizes < UCHAR_MAX);
|
||||
|
||||
m_chunkSpace = b2_chunkArrayIncrement;
|
||||
m_chunkCount = 0;
|
||||
m_chunks = (b2Chunk*)b2Alloc(m_chunkSpace * sizeof(b2Chunk));
|
||||
|
||||
memset(m_chunks, 0, m_chunkSpace * sizeof(b2Chunk));
|
||||
memset(m_freeLists, 0, sizeof(m_freeLists));
|
||||
|
||||
if (s_blockSizeLookupInitialized == false)
|
||||
{
|
||||
int32 j = 0;
|
||||
for (int32 i = 1; i <= b2_maxBlockSize; ++i)
|
||||
{
|
||||
b2Assert(j < b2_blockSizes);
|
||||
if (i <= s_blockSizes[j])
|
||||
{
|
||||
s_blockSizeLookup[i] = (uint8)j;
|
||||
}
|
||||
else
|
||||
{
|
||||
++j;
|
||||
s_blockSizeLookup[i] = (uint8)j;
|
||||
}
|
||||
}
|
||||
|
||||
s_blockSizeLookupInitialized = true;
|
||||
}
|
||||
}
|
||||
|
||||
b2BlockAllocator::~b2BlockAllocator()
|
||||
{
|
||||
for (int32 i = 0; i < m_chunkCount; ++i)
|
||||
{
|
||||
b2Free(m_chunks[i].blocks);
|
||||
}
|
||||
|
||||
b2Free(m_chunks);
|
||||
}
|
||||
|
||||
void* b2BlockAllocator::Allocate(int32 size)
|
||||
{
|
||||
if (size == 0)
|
||||
return NULL;
|
||||
|
||||
b2Assert(0 < size);
|
||||
|
||||
if (size > b2_maxBlockSize)
|
||||
{
|
||||
return b2Alloc(size);
|
||||
}
|
||||
|
||||
int32 index = s_blockSizeLookup[size];
|
||||
b2Assert(0 <= index && index < b2_blockSizes);
|
||||
|
||||
if (m_freeLists[index])
|
||||
{
|
||||
b2Block* block = m_freeLists[index];
|
||||
m_freeLists[index] = block->next;
|
||||
return block;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (m_chunkCount == m_chunkSpace)
|
||||
{
|
||||
b2Chunk* oldChunks = m_chunks;
|
||||
m_chunkSpace += b2_chunkArrayIncrement;
|
||||
m_chunks = (b2Chunk*)b2Alloc(m_chunkSpace * sizeof(b2Chunk));
|
||||
memcpy(m_chunks, oldChunks, m_chunkCount * sizeof(b2Chunk));
|
||||
memset(m_chunks + m_chunkCount, 0, b2_chunkArrayIncrement * sizeof(b2Chunk));
|
||||
b2Free(oldChunks);
|
||||
}
|
||||
|
||||
b2Chunk* chunk = m_chunks + m_chunkCount;
|
||||
chunk->blocks = (b2Block*)b2Alloc(b2_chunkSize);
|
||||
#if defined(_DEBUG)
|
||||
memset(chunk->blocks, 0xcd, b2_chunkSize);
|
||||
#endif
|
||||
int32 blockSize = s_blockSizes[index];
|
||||
chunk->blockSize = blockSize;
|
||||
int32 blockCount = b2_chunkSize / blockSize;
|
||||
b2Assert(blockCount * blockSize <= b2_chunkSize);
|
||||
for (int32 i = 0; i < blockCount - 1; ++i)
|
||||
{
|
||||
b2Block* block = (b2Block*)((int8*)chunk->blocks + blockSize * i);
|
||||
b2Block* next = (b2Block*)((int8*)chunk->blocks + blockSize * (i + 1));
|
||||
block->next = next;
|
||||
}
|
||||
b2Block* last = (b2Block*)((int8*)chunk->blocks + blockSize * (blockCount - 1));
|
||||
last->next = NULL;
|
||||
|
||||
m_freeLists[index] = chunk->blocks->next;
|
||||
++m_chunkCount;
|
||||
|
||||
return chunk->blocks;
|
||||
}
|
||||
}
|
||||
|
||||
void b2BlockAllocator::Free(void* p, int32 size)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
b2Assert(0 < size);
|
||||
|
||||
if (size > b2_maxBlockSize)
|
||||
{
|
||||
b2Free(p);
|
||||
return;
|
||||
}
|
||||
|
||||
int32 index = s_blockSizeLookup[size];
|
||||
b2Assert(0 <= index && index < b2_blockSizes);
|
||||
|
||||
#ifdef _DEBUG
|
||||
// Verify the memory address and size is valid.
|
||||
int32 blockSize = s_blockSizes[index];
|
||||
bool found = false;
|
||||
for (int32 i = 0; i < m_chunkCount; ++i)
|
||||
{
|
||||
b2Chunk* chunk = m_chunks + i;
|
||||
if (chunk->blockSize != blockSize)
|
||||
{
|
||||
b2Assert( (int8*)p + blockSize <= (int8*)chunk->blocks ||
|
||||
(int8*)chunk->blocks + b2_chunkSize <= (int8*)p);
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((int8*)chunk->blocks <= (int8*)p && (int8*)p + blockSize <= (int8*)chunk->blocks + b2_chunkSize)
|
||||
{
|
||||
found = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
b2Assert(found);
|
||||
|
||||
memset(p, 0xfd, blockSize);
|
||||
#endif
|
||||
|
||||
b2Block* block = (b2Block*)p;
|
||||
block->next = m_freeLists[index];
|
||||
m_freeLists[index] = block;
|
||||
}
|
||||
|
||||
void b2BlockAllocator::Clear()
|
||||
{
|
||||
for (int32 i = 0; i < m_chunkCount; ++i)
|
||||
{
|
||||
b2Free(m_chunks[i].blocks);
|
||||
}
|
||||
|
||||
m_chunkCount = 0;
|
||||
memset(m_chunks, 0, m_chunkSpace * sizeof(b2Chunk));
|
||||
|
||||
memset(m_freeLists, 0, sizeof(m_freeLists));
|
||||
}
|
62
deps/juce/modules/juce_box2d/box2d/Common/b2BlockAllocator.h
vendored
Normal file
62
deps/juce/modules/juce_box2d/box2d/Common/b2BlockAllocator.h
vendored
Normal file
@ -0,0 +1,62 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef B2_BLOCK_ALLOCATOR_H
|
||||
#define B2_BLOCK_ALLOCATOR_H
|
||||
|
||||
#include "b2Settings.h"
|
||||
|
||||
const juce::int32 b2_chunkSize = 16 * 1024;
|
||||
const juce::int32 b2_maxBlockSize = 640;
|
||||
const juce::int32 b2_blockSizes = 14;
|
||||
const juce::int32 b2_chunkArrayIncrement = 128;
|
||||
|
||||
struct b2Block;
|
||||
struct b2Chunk;
|
||||
|
||||
/// This is a small object allocator used for allocating small
|
||||
/// objects that persist for more than one time step.
|
||||
/// See: http://www.codeproject.com/useritems/Small_Block_Allocator.asp
|
||||
class b2BlockAllocator
|
||||
{
|
||||
public:
|
||||
b2BlockAllocator();
|
||||
~b2BlockAllocator();
|
||||
|
||||
/// Allocate memory. This will use b2Alloc if the size is larger than b2_maxBlockSize.
|
||||
void* Allocate(juce::int32 size);
|
||||
|
||||
/// Free memory. This will use b2Free if the size is larger than b2_maxBlockSize.
|
||||
void Free(void* p, juce::int32 size);
|
||||
|
||||
void Clear();
|
||||
|
||||
private:
|
||||
|
||||
b2Chunk* m_chunks;
|
||||
juce::int32 m_chunkCount;
|
||||
juce::int32 m_chunkSpace;
|
||||
|
||||
b2Block* m_freeLists[b2_blockSizes];
|
||||
|
||||
static juce::int32 s_blockSizes[b2_blockSizes];
|
||||
static juce::uint8 s_blockSizeLookup[b2_maxBlockSize + 1];
|
||||
static bool s_blockSizeLookupInitialized;
|
||||
};
|
||||
|
||||
#endif
|
44
deps/juce/modules/juce_box2d/box2d/Common/b2Draw.cpp
vendored
Normal file
44
deps/juce/modules/juce_box2d/box2d/Common/b2Draw.cpp
vendored
Normal file
@ -0,0 +1,44 @@
|
||||
/*
|
||||
* Copyright (c) 2011 Erin Catto http://box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2Draw.h"
|
||||
|
||||
b2Draw::b2Draw()
|
||||
{
|
||||
m_drawFlags = 0;
|
||||
}
|
||||
|
||||
void b2Draw::SetFlags(uint32 flags)
|
||||
{
|
||||
m_drawFlags = flags;
|
||||
}
|
||||
|
||||
uint32 b2Draw::GetFlags() const
|
||||
{
|
||||
return m_drawFlags;
|
||||
}
|
||||
|
||||
void b2Draw::AppendFlags(uint32 flags)
|
||||
{
|
||||
m_drawFlags |= flags;
|
||||
}
|
||||
|
||||
void b2Draw::ClearFlags(uint32 flags)
|
||||
{
|
||||
m_drawFlags &= ~flags;
|
||||
}
|
87
deps/juce/modules/juce_box2d/box2d/Common/b2Draw.h
vendored
Normal file
87
deps/juce/modules/juce_box2d/box2d/Common/b2Draw.h
vendored
Normal file
@ -0,0 +1,87 @@
|
||||
/*
|
||||
* Copyright (c) 2011 Erin Catto http://box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef BOX2D_DRAW_H
|
||||
#define BOX2D_DRAW_H
|
||||
|
||||
#include "b2Math.h"
|
||||
|
||||
/// Color for debug drawing. Each value has the range [0,1].
|
||||
struct b2Color
|
||||
{
|
||||
b2Color() {}
|
||||
b2Color(float32 red, float32 green, float32 blue) : r(red), g(green), b(blue) {}
|
||||
void Set(float32 ri, float32 gi, float32 bi) { r = ri; g = gi; b = bi; }
|
||||
float32 r, g, b;
|
||||
};
|
||||
|
||||
/// Implement and register this class with a b2World to provide debug drawing of physics
|
||||
/// entities in your game.
|
||||
class b2Draw
|
||||
{
|
||||
public:
|
||||
b2Draw();
|
||||
|
||||
virtual ~b2Draw() {}
|
||||
|
||||
enum
|
||||
{
|
||||
e_shapeBit = 0x0001, ///< draw shapes
|
||||
e_jointBit = 0x0002, ///< draw joint connections
|
||||
e_aabbBit = 0x0004, ///< draw axis aligned bounding boxes
|
||||
e_pairBit = 0x0008, ///< draw broad-phase pairs
|
||||
e_centerOfMassBit = 0x0010 ///< draw center of mass frame
|
||||
};
|
||||
|
||||
/// Set the drawing flags.
|
||||
void SetFlags(juce::uint32 flags);
|
||||
|
||||
/// Get the drawing flags.
|
||||
juce::uint32 GetFlags() const;
|
||||
|
||||
/// Append flags to the current flags.
|
||||
void AppendFlags(juce::uint32 flags);
|
||||
|
||||
/// Clear flags from the current flags.
|
||||
void ClearFlags(juce::uint32 flags);
|
||||
|
||||
/// Draw a closed polygon provided in CCW order.
|
||||
virtual void DrawPolygon(const b2Vec2* vertices, juce::int32 vertexCount, const b2Color& color) = 0;
|
||||
|
||||
/// Draw a solid closed polygon provided in CCW order.
|
||||
virtual void DrawSolidPolygon(const b2Vec2* vertices, juce::int32 vertexCount, const b2Color& color) = 0;
|
||||
|
||||
/// Draw a circle.
|
||||
virtual void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color) = 0;
|
||||
|
||||
/// Draw a solid circle.
|
||||
virtual void DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color) = 0;
|
||||
|
||||
/// Draw a line segment.
|
||||
virtual void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color) = 0;
|
||||
|
||||
/// Draw a transform. Choose your own length scale.
|
||||
/// @param xf a transform.
|
||||
virtual void DrawTransform(const b2Transform& xf) = 0;
|
||||
|
||||
protected:
|
||||
juce::uint32 m_drawFlags;
|
||||
};
|
||||
|
||||
#endif
|
86
deps/juce/modules/juce_box2d/box2d/Common/b2GrowableStack.h
vendored
Normal file
86
deps/juce/modules/juce_box2d/box2d/Common/b2GrowableStack.h
vendored
Normal file
@ -0,0 +1,86 @@
|
||||
/*
|
||||
* Copyright (c) 2010 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef B2_GROWABLE_STACK_H
|
||||
#define B2_GROWABLE_STACK_H
|
||||
|
||||
#include "b2Settings.h"
|
||||
#include <cstring>
|
||||
|
||||
/// This is a growable LIFO stack with an initial capacity of N.
|
||||
/// If the stack size exceeds the initial capacity, the heap is used
|
||||
/// to increase the size of the stack.
|
||||
template <typename T, juce::int32 N>
|
||||
class b2GrowableStack
|
||||
{
|
||||
public:
|
||||
b2GrowableStack()
|
||||
{
|
||||
m_stack = m_array;
|
||||
m_count = 0;
|
||||
m_capacity = N;
|
||||
}
|
||||
|
||||
~b2GrowableStack()
|
||||
{
|
||||
if (m_stack != m_array)
|
||||
{
|
||||
b2Free(m_stack);
|
||||
m_stack = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void Push(const T& element)
|
||||
{
|
||||
if (m_count == m_capacity)
|
||||
{
|
||||
T* old = m_stack;
|
||||
m_capacity *= 2;
|
||||
m_stack = (T*)b2Alloc(m_capacity * sizeof(T));
|
||||
std::memcpy(m_stack, old, m_count * sizeof(T));
|
||||
if (old != m_array)
|
||||
{
|
||||
b2Free(old);
|
||||
}
|
||||
}
|
||||
|
||||
m_stack[m_count] = element;
|
||||
++m_count;
|
||||
}
|
||||
|
||||
T Pop()
|
||||
{
|
||||
b2Assert(m_count > 0);
|
||||
--m_count;
|
||||
return m_stack[m_count];
|
||||
}
|
||||
|
||||
juce::int32 GetCount()
|
||||
{
|
||||
return m_count;
|
||||
}
|
||||
|
||||
private:
|
||||
T* m_stack;
|
||||
T m_array[N];
|
||||
juce::int32 m_count;
|
||||
juce::int32 m_capacity;
|
||||
};
|
||||
|
||||
|
||||
#endif
|
94
deps/juce/modules/juce_box2d/box2d/Common/b2Math.cpp
vendored
Normal file
94
deps/juce/modules/juce_box2d/box2d/Common/b2Math.cpp
vendored
Normal file
@ -0,0 +1,94 @@
|
||||
/*
|
||||
* Copyright (c) 2007-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2Math.h"
|
||||
|
||||
const b2Vec2 b2Vec2_zero(0.0f, 0.0f);
|
||||
|
||||
/// Solve A * x = b, where b is a column vector. This is more efficient
|
||||
/// than computing the inverse in one-shot cases.
|
||||
b2Vec3 b2Mat33::Solve33(const b2Vec3& b) const
|
||||
{
|
||||
float32 det = b2Dot(ex, b2Cross(ey, ez));
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
b2Vec3 x;
|
||||
x.x = det * b2Dot(b, b2Cross(ey, ez));
|
||||
x.y = det * b2Dot(ex, b2Cross(b, ez));
|
||||
x.z = det * b2Dot(ex, b2Cross(ey, b));
|
||||
return x;
|
||||
}
|
||||
|
||||
/// Solve A * x = b, where b is a column vector. This is more efficient
|
||||
/// than computing the inverse in one-shot cases.
|
||||
b2Vec2 b2Mat33::Solve22(const b2Vec2& b) const
|
||||
{
|
||||
float32 a11 = ex.x, a12 = ey.x, a21 = ex.y, a22 = ey.y;
|
||||
float32 det = a11 * a22 - a12 * a21;
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
b2Vec2 x;
|
||||
x.x = det * (a22 * b.x - a12 * b.y);
|
||||
x.y = det * (a11 * b.y - a21 * b.x);
|
||||
return x;
|
||||
}
|
||||
|
||||
///
|
||||
void b2Mat33::GetInverse22(b2Mat33* M) const
|
||||
{
|
||||
float32 a = ex.x, b = ey.x, c = ex.y, d = ey.y;
|
||||
float32 det = a * d - b * c;
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
|
||||
M->ex.x = det * d; M->ey.x = -det * b; M->ex.z = 0.0f;
|
||||
M->ex.y = -det * c; M->ey.y = det * a; M->ey.z = 0.0f;
|
||||
M->ez.x = 0.0f; M->ez.y = 0.0f; M->ez.z = 0.0f;
|
||||
}
|
||||
|
||||
/// Returns the zero matrix if singular.
|
||||
void b2Mat33::GetSymInverse33(b2Mat33* M) const
|
||||
{
|
||||
float32 det = b2Dot(ex, b2Cross(ey, ez));
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
|
||||
float32 a11 = ex.x, a12 = ey.x, a13 = ez.x;
|
||||
float32 a22 = ey.y, a23 = ez.y;
|
||||
float32 a33 = ez.z;
|
||||
|
||||
M->ex.x = det * (a22 * a33 - a23 * a23);
|
||||
M->ex.y = det * (a13 * a23 - a12 * a33);
|
||||
M->ex.z = det * (a12 * a23 - a13 * a22);
|
||||
|
||||
M->ey.x = M->ex.y;
|
||||
M->ey.y = det * (a11 * a33 - a13 * a13);
|
||||
M->ey.z = det * (a13 * a12 - a11 * a23);
|
||||
|
||||
M->ez.x = M->ex.z;
|
||||
M->ez.y = M->ey.z;
|
||||
M->ez.z = det * (a11 * a22 - a12 * a12);
|
||||
}
|
726
deps/juce/modules/juce_box2d/box2d/Common/b2Math.h
vendored
Normal file
726
deps/juce/modules/juce_box2d/box2d/Common/b2Math.h
vendored
Normal file
@ -0,0 +1,726 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef B2_MATH_H
|
||||
#define B2_MATH_H
|
||||
|
||||
#include "b2Settings.h"
|
||||
|
||||
/// This function is used to ensure that a floating point number is
|
||||
/// not a NaN or infinity.
|
||||
inline bool b2IsValid(float32 x)
|
||||
{
|
||||
if (x != x)
|
||||
{
|
||||
// NaN.
|
||||
return false;
|
||||
}
|
||||
|
||||
float32 infinity = std::numeric_limits<float32>::infinity();
|
||||
return -infinity < x && x < infinity;
|
||||
}
|
||||
|
||||
/// This is a approximate yet fast inverse square-root.
|
||||
inline float32 b2InvSqrt(float32 x)
|
||||
{
|
||||
union
|
||||
{
|
||||
float32 x;
|
||||
juce::int32 i;
|
||||
} convert;
|
||||
|
||||
convert.x = x;
|
||||
float32 xhalf = 0.5f * x;
|
||||
convert.i = 0x5f3759df - (convert.i >> 1);
|
||||
x = convert.x;
|
||||
x = x * (1.5f - xhalf * x * x);
|
||||
return x;
|
||||
}
|
||||
|
||||
#define b2Sqrt(x) std::sqrt(x)
|
||||
#define b2Atan2(y, x) std::atan2(y, x)
|
||||
|
||||
/// A 2D column vector.
|
||||
struct b2Vec2
|
||||
{
|
||||
/// Default constructor does nothing (for performance).
|
||||
b2Vec2() {}
|
||||
|
||||
/// Construct using coordinates.
|
||||
b2Vec2(float32 xCoord, float32 yCoord) : x(xCoord), y(yCoord) {}
|
||||
|
||||
/// Set this vector to all zeros.
|
||||
void SetZero() { x = 0.0f; y = 0.0f; }
|
||||
|
||||
/// Set this vector to some specified coordinates.
|
||||
void Set(float32 x_, float32 y_) { x = x_; y = y_; }
|
||||
|
||||
/// Negate this vector.
|
||||
b2Vec2 operator -() const { b2Vec2 v; v.Set(-x, -y); return v; }
|
||||
|
||||
/// Read from and indexed element.
|
||||
float32 operator () (juce::int32 i) const
|
||||
{
|
||||
return (&x)[i];
|
||||
}
|
||||
|
||||
/// Write to an indexed element.
|
||||
float32& operator () (juce::int32 i)
|
||||
{
|
||||
return (&x)[i];
|
||||
}
|
||||
|
||||
/// Add a vector to this vector.
|
||||
void operator += (const b2Vec2& v)
|
||||
{
|
||||
x += v.x; y += v.y;
|
||||
}
|
||||
|
||||
/// Subtract a vector from this vector.
|
||||
void operator -= (const b2Vec2& v)
|
||||
{
|
||||
x -= v.x; y -= v.y;
|
||||
}
|
||||
|
||||
/// Multiply this vector by a scalar.
|
||||
void operator *= (float32 a)
|
||||
{
|
||||
x *= a; y *= a;
|
||||
}
|
||||
|
||||
/// Get the length of this vector (the norm).
|
||||
float32 Length() const
|
||||
{
|
||||
return b2Sqrt(x * x + y * y);
|
||||
}
|
||||
|
||||
/// Get the length squared. For performance, use this instead of
|
||||
/// b2Vec2::Length (if possible).
|
||||
float32 LengthSquared() const
|
||||
{
|
||||
return x * x + y * y;
|
||||
}
|
||||
|
||||
/// Convert this vector into a unit vector. Returns the length.
|
||||
float32 Normalize()
|
||||
{
|
||||
float32 length = Length();
|
||||
if (length < b2_epsilon)
|
||||
{
|
||||
return 0.0f;
|
||||
}
|
||||
float32 invLength = 1.0f / length;
|
||||
x *= invLength;
|
||||
y *= invLength;
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
/// Does this vector contain finite coordinates?
|
||||
bool IsValid() const
|
||||
{
|
||||
return b2IsValid(x) && b2IsValid(y);
|
||||
}
|
||||
|
||||
/// Get the skew vector such that dot(skew_vec, other) == cross(vec, other)
|
||||
b2Vec2 Skew() const
|
||||
{
|
||||
return b2Vec2(-y, x);
|
||||
}
|
||||
|
||||
float32 x, y;
|
||||
};
|
||||
|
||||
/// A 2D column vector with 3 elements.
|
||||
struct b2Vec3
|
||||
{
|
||||
/// Default constructor does nothing (for performance).
|
||||
b2Vec3() {}
|
||||
|
||||
/// Construct using coordinates.
|
||||
b2Vec3(float32 xCoord, float32 yCoord, float32 zCoord) : x(xCoord), y(yCoord), z(zCoord) {}
|
||||
|
||||
/// Set this vector to all zeros.
|
||||
void SetZero() { x = 0.0f; y = 0.0f; z = 0.0f; }
|
||||
|
||||
/// Set this vector to some specified coordinates.
|
||||
void Set(float32 x_, float32 y_, float32 z_) { x = x_; y = y_; z = z_; }
|
||||
|
||||
/// Negate this vector.
|
||||
b2Vec3 operator -() const { b2Vec3 v; v.Set(-x, -y, -z); return v; }
|
||||
|
||||
/// Add a vector to this vector.
|
||||
void operator += (const b2Vec3& v)
|
||||
{
|
||||
x += v.x; y += v.y; z += v.z;
|
||||
}
|
||||
|
||||
/// Subtract a vector from this vector.
|
||||
void operator -= (const b2Vec3& v)
|
||||
{
|
||||
x -= v.x; y -= v.y; z -= v.z;
|
||||
}
|
||||
|
||||
/// Multiply this vector by a scalar.
|
||||
void operator *= (float32 s)
|
||||
{
|
||||
x *= s; y *= s; z *= s;
|
||||
}
|
||||
|
||||
float32 x, y, z;
|
||||
};
|
||||
|
||||
/// A 2-by-2 matrix. Stored in column-major order.
|
||||
struct b2Mat22
|
||||
{
|
||||
/// The default constructor does nothing (for performance).
|
||||
b2Mat22() {}
|
||||
|
||||
/// Construct this matrix using columns.
|
||||
b2Mat22(const b2Vec2& c1, const b2Vec2& c2)
|
||||
{
|
||||
ex = c1;
|
||||
ey = c2;
|
||||
}
|
||||
|
||||
/// Construct this matrix using scalars.
|
||||
b2Mat22(float32 a11, float32 a12, float32 a21, float32 a22)
|
||||
{
|
||||
ex.x = a11; ex.y = a21;
|
||||
ey.x = a12; ey.y = a22;
|
||||
}
|
||||
|
||||
/// Initialize this matrix using columns.
|
||||
void Set(const b2Vec2& c1, const b2Vec2& c2)
|
||||
{
|
||||
ex = c1;
|
||||
ey = c2;
|
||||
}
|
||||
|
||||
/// Set this to the identity matrix.
|
||||
void SetIdentity()
|
||||
{
|
||||
ex.x = 1.0f; ey.x = 0.0f;
|
||||
ex.y = 0.0f; ey.y = 1.0f;
|
||||
}
|
||||
|
||||
/// Set this matrix to all zeros.
|
||||
void SetZero()
|
||||
{
|
||||
ex.x = 0.0f; ey.x = 0.0f;
|
||||
ex.y = 0.0f; ey.y = 0.0f;
|
||||
}
|
||||
|
||||
b2Mat22 GetInverse() const
|
||||
{
|
||||
float32 a = ex.x, b = ey.x, c = ex.y, d = ey.y;
|
||||
b2Mat22 B;
|
||||
float32 det = a * d - b * c;
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
B.ex.x = det * d; B.ey.x = -det * b;
|
||||
B.ex.y = -det * c; B.ey.y = det * a;
|
||||
return B;
|
||||
}
|
||||
|
||||
/// Solve A * x = b, where b is a column vector. This is more efficient
|
||||
/// than computing the inverse in one-shot cases.
|
||||
b2Vec2 Solve(const b2Vec2& b) const
|
||||
{
|
||||
float32 a11 = ex.x, a12 = ey.x, a21 = ex.y, a22 = ey.y;
|
||||
float32 det = a11 * a22 - a12 * a21;
|
||||
if (det != 0.0f)
|
||||
{
|
||||
det = 1.0f / det;
|
||||
}
|
||||
b2Vec2 x;
|
||||
x.x = det * (a22 * b.x - a12 * b.y);
|
||||
x.y = det * (a11 * b.y - a21 * b.x);
|
||||
return x;
|
||||
}
|
||||
|
||||
b2Vec2 ex, ey;
|
||||
};
|
||||
|
||||
/// A 3-by-3 matrix. Stored in column-major order.
|
||||
struct b2Mat33
|
||||
{
|
||||
/// The default constructor does nothing (for performance).
|
||||
b2Mat33() {}
|
||||
|
||||
/// Construct this matrix using columns.
|
||||
b2Mat33(const b2Vec3& c1, const b2Vec3& c2, const b2Vec3& c3)
|
||||
{
|
||||
ex = c1;
|
||||
ey = c2;
|
||||
ez = c3;
|
||||
}
|
||||
|
||||
/// Set this matrix to all zeros.
|
||||
void SetZero()
|
||||
{
|
||||
ex.SetZero();
|
||||
ey.SetZero();
|
||||
ez.SetZero();
|
||||
}
|
||||
|
||||
/// Solve A * x = b, where b is a column vector. This is more efficient
|
||||
/// than computing the inverse in one-shot cases.
|
||||
b2Vec3 Solve33(const b2Vec3& b) const;
|
||||
|
||||
/// Solve A * x = b, where b is a column vector. This is more efficient
|
||||
/// than computing the inverse in one-shot cases. Solve only the upper
|
||||
/// 2-by-2 matrix equation.
|
||||
b2Vec2 Solve22(const b2Vec2& b) const;
|
||||
|
||||
/// Get the inverse of this matrix as a 2-by-2.
|
||||
/// Returns the zero matrix if singular.
|
||||
void GetInverse22(b2Mat33* M) const;
|
||||
|
||||
/// Get the symmetric inverse of this matrix as a 3-by-3.
|
||||
/// Returns the zero matrix if singular.
|
||||
void GetSymInverse33(b2Mat33* M) const;
|
||||
|
||||
b2Vec3 ex, ey, ez;
|
||||
};
|
||||
|
||||
/// Rotation
|
||||
struct b2Rot
|
||||
{
|
||||
b2Rot() {}
|
||||
|
||||
/// Initialize from an angle in radians
|
||||
explicit b2Rot(float32 angle)
|
||||
{
|
||||
/// TODO_ERIN optimize
|
||||
s = sinf(angle);
|
||||
c = cosf(angle);
|
||||
}
|
||||
|
||||
/// Set using an angle in radians.
|
||||
void Set(float32 angle)
|
||||
{
|
||||
/// TODO_ERIN optimize
|
||||
s = sinf(angle);
|
||||
c = cosf(angle);
|
||||
}
|
||||
|
||||
/// Set to the identity rotation
|
||||
void SetIdentity()
|
||||
{
|
||||
s = 0.0f;
|
||||
c = 1.0f;
|
||||
}
|
||||
|
||||
/// Get the angle in radians
|
||||
float32 GetAngle() const
|
||||
{
|
||||
return b2Atan2(s, c);
|
||||
}
|
||||
|
||||
/// Get the x-axis
|
||||
b2Vec2 GetXAxis() const
|
||||
{
|
||||
return b2Vec2(c, s);
|
||||
}
|
||||
|
||||
/// Get the u-axis
|
||||
b2Vec2 GetYAxis() const
|
||||
{
|
||||
return b2Vec2(-s, c);
|
||||
}
|
||||
|
||||
/// Sine and cosine
|
||||
float32 s, c;
|
||||
};
|
||||
|
||||
/// A transform contains translation and rotation. It is used to represent
|
||||
/// the position and orientation of rigid frames.
|
||||
struct b2Transform
|
||||
{
|
||||
/// The default constructor does nothing.
|
||||
b2Transform() {}
|
||||
|
||||
/// Initialize using a position vector and a rotation.
|
||||
b2Transform(const b2Vec2& position, const b2Rot& rotation) : p(position), q(rotation) {}
|
||||
|
||||
/// Set this to the identity transform.
|
||||
void SetIdentity()
|
||||
{
|
||||
p.SetZero();
|
||||
q.SetIdentity();
|
||||
}
|
||||
|
||||
/// Set this based on the position and angle.
|
||||
void Set(const b2Vec2& position, float32 angle)
|
||||
{
|
||||
p = position;
|
||||
q.Set(angle);
|
||||
}
|
||||
|
||||
b2Vec2 p;
|
||||
b2Rot q;
|
||||
};
|
||||
|
||||
/// This describes the motion of a body/shape for TOI computation.
|
||||
/// Shapes are defined with respect to the body origin, which may
|
||||
/// no coincide with the center of mass. However, to support dynamics
|
||||
/// we must interpolate the center of mass position.
|
||||
struct b2Sweep
|
||||
{
|
||||
/// Get the interpolated transform at a specific time.
|
||||
/// @param beta is a factor in [0,1], where 0 indicates alpha0.
|
||||
void GetTransform(b2Transform* xfb, float32 beta) const;
|
||||
|
||||
/// Advance the sweep forward, yielding a new initial state.
|
||||
/// @param alpha the new initial time.
|
||||
void Advance(float32 alpha);
|
||||
|
||||
/// Normalize the angles.
|
||||
void Normalize();
|
||||
|
||||
b2Vec2 localCenter; ///< local center of mass position
|
||||
b2Vec2 c0, c; ///< center world positions
|
||||
float32 a0, a; ///< world angles
|
||||
|
||||
/// Fraction of the current time step in the range [0,1]
|
||||
/// c0 and a0 are the positions at alpha0.
|
||||
float32 alpha0;
|
||||
};
|
||||
|
||||
/// Useful constant
|
||||
extern const b2Vec2 b2Vec2_zero;
|
||||
|
||||
/// Perform the dot product on two vectors.
|
||||
inline float32 b2Dot(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return a.x * b.x + a.y * b.y;
|
||||
}
|
||||
|
||||
/// Perform the cross product on two vectors. In 2D this produces a scalar.
|
||||
inline float32 b2Cross(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return a.x * b.y - a.y * b.x;
|
||||
}
|
||||
|
||||
/// Perform the cross product on a vector and a scalar. In 2D this produces
|
||||
/// a vector.
|
||||
inline b2Vec2 b2Cross(const b2Vec2& a, float32 s)
|
||||
{
|
||||
return b2Vec2(s * a.y, -s * a.x);
|
||||
}
|
||||
|
||||
/// Perform the cross product on a scalar and a vector. In 2D this produces
|
||||
/// a vector.
|
||||
inline b2Vec2 b2Cross(float32 s, const b2Vec2& a)
|
||||
{
|
||||
return b2Vec2(-s * a.y, s * a.x);
|
||||
}
|
||||
|
||||
/// Multiply a matrix times a vector. If a rotation matrix is provided,
|
||||
/// then this transforms the vector from one frame to another.
|
||||
inline b2Vec2 b2Mul(const b2Mat22& A, const b2Vec2& v)
|
||||
{
|
||||
return b2Vec2(A.ex.x * v.x + A.ey.x * v.y, A.ex.y * v.x + A.ey.y * v.y);
|
||||
}
|
||||
|
||||
/// Multiply a matrix transpose times a vector. If a rotation matrix is provided,
|
||||
/// then this transforms the vector from one frame to another (inverse transform).
|
||||
inline b2Vec2 b2MulT(const b2Mat22& A, const b2Vec2& v)
|
||||
{
|
||||
return b2Vec2(b2Dot(v, A.ex), b2Dot(v, A.ey));
|
||||
}
|
||||
|
||||
/// Add two vectors component-wise.
|
||||
inline b2Vec2 operator + (const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return b2Vec2(a.x + b.x, a.y + b.y);
|
||||
}
|
||||
|
||||
/// Subtract two vectors component-wise.
|
||||
inline b2Vec2 operator - (const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return b2Vec2(a.x - b.x, a.y - b.y);
|
||||
}
|
||||
|
||||
inline b2Vec2 operator * (float32 s, const b2Vec2& a)
|
||||
{
|
||||
return b2Vec2(s * a.x, s * a.y);
|
||||
}
|
||||
|
||||
inline bool operator == (const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return a.x == b.x && a.y == b.y;
|
||||
}
|
||||
|
||||
inline float32 b2Distance(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
b2Vec2 c = a - b;
|
||||
return c.Length();
|
||||
}
|
||||
|
||||
inline float32 b2DistanceSquared(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
b2Vec2 c = a - b;
|
||||
return b2Dot(c, c);
|
||||
}
|
||||
|
||||
inline b2Vec3 operator * (float32 s, const b2Vec3& a)
|
||||
{
|
||||
return b2Vec3(s * a.x, s * a.y, s * a.z);
|
||||
}
|
||||
|
||||
/// Add two vectors component-wise.
|
||||
inline b2Vec3 operator + (const b2Vec3& a, const b2Vec3& b)
|
||||
{
|
||||
return b2Vec3(a.x + b.x, a.y + b.y, a.z + b.z);
|
||||
}
|
||||
|
||||
/// Subtract two vectors component-wise.
|
||||
inline b2Vec3 operator - (const b2Vec3& a, const b2Vec3& b)
|
||||
{
|
||||
return b2Vec3(a.x - b.x, a.y - b.y, a.z - b.z);
|
||||
}
|
||||
|
||||
/// Perform the dot product on two vectors.
|
||||
inline float32 b2Dot(const b2Vec3& a, const b2Vec3& b)
|
||||
{
|
||||
return a.x * b.x + a.y * b.y + a.z * b.z;
|
||||
}
|
||||
|
||||
/// Perform the cross product on two vectors.
|
||||
inline b2Vec3 b2Cross(const b2Vec3& a, const b2Vec3& b)
|
||||
{
|
||||
return b2Vec3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x);
|
||||
}
|
||||
|
||||
inline b2Mat22 operator + (const b2Mat22& A, const b2Mat22& B)
|
||||
{
|
||||
return b2Mat22(A.ex + B.ex, A.ey + B.ey);
|
||||
}
|
||||
|
||||
// A * B
|
||||
inline b2Mat22 b2Mul(const b2Mat22& A, const b2Mat22& B)
|
||||
{
|
||||
return b2Mat22(b2Mul(A, B.ex), b2Mul(A, B.ey));
|
||||
}
|
||||
|
||||
// A^T * B
|
||||
inline b2Mat22 b2MulT(const b2Mat22& A, const b2Mat22& B)
|
||||
{
|
||||
b2Vec2 c1(b2Dot(A.ex, B.ex), b2Dot(A.ey, B.ex));
|
||||
b2Vec2 c2(b2Dot(A.ex, B.ey), b2Dot(A.ey, B.ey));
|
||||
return b2Mat22(c1, c2);
|
||||
}
|
||||
|
||||
/// Multiply a matrix times a vector.
|
||||
inline b2Vec3 b2Mul(const b2Mat33& A, const b2Vec3& v)
|
||||
{
|
||||
return v.x * A.ex + v.y * A.ey + v.z * A.ez;
|
||||
}
|
||||
|
||||
/// Multiply a matrix times a vector.
|
||||
inline b2Vec2 b2Mul22(const b2Mat33& A, const b2Vec2& v)
|
||||
{
|
||||
return b2Vec2(A.ex.x * v.x + A.ey.x * v.y, A.ex.y * v.x + A.ey.y * v.y);
|
||||
}
|
||||
|
||||
/// Multiply two rotations: q * r
|
||||
inline b2Rot b2Mul(const b2Rot& q, const b2Rot& r)
|
||||
{
|
||||
// [qc -qs] * [rc -rs] = [qc*rc-qs*rs -qc*rs-qs*rc]
|
||||
// [qs qc] [rs rc] [qs*rc+qc*rs -qs*rs+qc*rc]
|
||||
// s = qs * rc + qc * rs
|
||||
// c = qc * rc - qs * rs
|
||||
b2Rot qr;
|
||||
qr.s = q.s * r.c + q.c * r.s;
|
||||
qr.c = q.c * r.c - q.s * r.s;
|
||||
return qr;
|
||||
}
|
||||
|
||||
/// Transpose multiply two rotations: qT * r
|
||||
inline b2Rot b2MulT(const b2Rot& q, const b2Rot& r)
|
||||
{
|
||||
// [ qc qs] * [rc -rs] = [qc*rc+qs*rs -qc*rs+qs*rc]
|
||||
// [-qs qc] [rs rc] [-qs*rc+qc*rs qs*rs+qc*rc]
|
||||
// s = qc * rs - qs * rc
|
||||
// c = qc * rc + qs * rs
|
||||
b2Rot qr;
|
||||
qr.s = q.c * r.s - q.s * r.c;
|
||||
qr.c = q.c * r.c + q.s * r.s;
|
||||
return qr;
|
||||
}
|
||||
|
||||
/// Rotate a vector
|
||||
inline b2Vec2 b2Mul(const b2Rot& q, const b2Vec2& v)
|
||||
{
|
||||
return b2Vec2(q.c * v.x - q.s * v.y, q.s * v.x + q.c * v.y);
|
||||
}
|
||||
|
||||
/// Inverse rotate a vector
|
||||
inline b2Vec2 b2MulT(const b2Rot& q, const b2Vec2& v)
|
||||
{
|
||||
return b2Vec2(q.c * v.x + q.s * v.y, -q.s * v.x + q.c * v.y);
|
||||
}
|
||||
|
||||
inline b2Vec2 b2Mul(const b2Transform& T, const b2Vec2& v)
|
||||
{
|
||||
float32 x = (T.q.c * v.x - T.q.s * v.y) + T.p.x;
|
||||
float32 y = (T.q.s * v.x + T.q.c * v.y) + T.p.y;
|
||||
|
||||
return b2Vec2(x, y);
|
||||
}
|
||||
|
||||
inline b2Vec2 b2MulT(const b2Transform& T, const b2Vec2& v)
|
||||
{
|
||||
float32 px = v.x - T.p.x;
|
||||
float32 py = v.y - T.p.y;
|
||||
float32 x = (T.q.c * px + T.q.s * py);
|
||||
float32 y = (-T.q.s * px + T.q.c * py);
|
||||
|
||||
return b2Vec2(x, y);
|
||||
}
|
||||
|
||||
// v2 = A.q.Rot(B.q.Rot(v1) + B.p) + A.p
|
||||
// = (A.q * B.q).Rot(v1) + A.q.Rot(B.p) + A.p
|
||||
inline b2Transform b2Mul(const b2Transform& A, const b2Transform& B)
|
||||
{
|
||||
b2Transform C;
|
||||
C.q = b2Mul(A.q, B.q);
|
||||
C.p = b2Mul(A.q, B.p) + A.p;
|
||||
return C;
|
||||
}
|
||||
|
||||
// v2 = A.q' * (B.q * v1 + B.p - A.p)
|
||||
// = A.q' * B.q * v1 + A.q' * (B.p - A.p)
|
||||
inline b2Transform b2MulT(const b2Transform& A, const b2Transform& B)
|
||||
{
|
||||
b2Transform C;
|
||||
C.q = b2MulT(A.q, B.q);
|
||||
C.p = b2MulT(A.q, B.p - A.p);
|
||||
return C;
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline T b2Abs(T a)
|
||||
{
|
||||
return a > T(0) ? a : -a;
|
||||
}
|
||||
|
||||
inline b2Vec2 b2Abs(const b2Vec2& a)
|
||||
{
|
||||
return b2Vec2(b2Abs(a.x), b2Abs(a.y));
|
||||
}
|
||||
|
||||
inline b2Mat22 b2Abs(const b2Mat22& A)
|
||||
{
|
||||
return b2Mat22(b2Abs(A.ex), b2Abs(A.ey));
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline T b2Min(T a, T b)
|
||||
{
|
||||
return a < b ? a : b;
|
||||
}
|
||||
|
||||
inline b2Vec2 b2Min(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return b2Vec2(b2Min(a.x, b.x), b2Min(a.y, b.y));
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline T b2Max(T a, T b)
|
||||
{
|
||||
return a > b ? a : b;
|
||||
}
|
||||
|
||||
inline b2Vec2 b2Max(const b2Vec2& a, const b2Vec2& b)
|
||||
{
|
||||
return b2Vec2(b2Max(a.x, b.x), b2Max(a.y, b.y));
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline T b2Clamp(T a, T low, T high)
|
||||
{
|
||||
return b2Max(low, b2Min(a, high));
|
||||
}
|
||||
|
||||
inline b2Vec2 b2Clamp(const b2Vec2& a, const b2Vec2& low, const b2Vec2& high)
|
||||
{
|
||||
return b2Max(low, b2Min(a, high));
|
||||
}
|
||||
|
||||
template<typename T> inline void b2Swap(T& a, T& b)
|
||||
{
|
||||
T tmp = a;
|
||||
a = b;
|
||||
b = tmp;
|
||||
}
|
||||
|
||||
/// "Next Largest Power of 2
|
||||
/// Given a binary integer value x, the next largest power of 2 can be computed by a SWAR algorithm
|
||||
/// that recursively "folds" the upper bits into the lower bits. This process yields a bit vector with
|
||||
/// the same most significant 1 as x, but all 1's below it. Adding 1 to that value yields the next
|
||||
/// largest power of 2. For a 32-bit value:"
|
||||
inline juce::uint32 b2NextPowerOfTwo(juce::uint32 x)
|
||||
{
|
||||
x |= (x >> 1);
|
||||
x |= (x >> 2);
|
||||
x |= (x >> 4);
|
||||
x |= (x >> 8);
|
||||
x |= (x >> 16);
|
||||
return x + 1;
|
||||
}
|
||||
|
||||
inline bool b2IsPowerOfTwo(juce::uint32 x)
|
||||
{
|
||||
bool result = x > 0 && (x & (x - 1)) == 0;
|
||||
return result;
|
||||
}
|
||||
|
||||
inline void b2Sweep::GetTransform(b2Transform* xf, float32 beta) const
|
||||
{
|
||||
xf->p = (1.0f - beta) * c0 + beta * c;
|
||||
float32 angle = (1.0f - beta) * a0 + beta * a;
|
||||
xf->q.Set(angle);
|
||||
|
||||
// Shift to origin
|
||||
xf->p -= b2Mul(xf->q, localCenter);
|
||||
}
|
||||
|
||||
inline void b2Sweep::Advance(float32 alpha)
|
||||
{
|
||||
b2Assert(alpha0 < 1.0f);
|
||||
float32 beta = (alpha - alpha0) / (1.0f - alpha0);
|
||||
c0 = (1.0f - beta) * c0 + beta * c;
|
||||
a0 = (1.0f - beta) * a0 + beta * a;
|
||||
alpha0 = alpha;
|
||||
}
|
||||
|
||||
/// Normalize an angle in radians to be between -pi and pi
|
||||
inline void b2Sweep::Normalize()
|
||||
{
|
||||
float32 twoPi = 2.0f * b2_pi;
|
||||
float32 d = twoPi * floorf(a0 / twoPi);
|
||||
a0 -= d;
|
||||
a -= d;
|
||||
}
|
||||
|
||||
#endif
|
41
deps/juce/modules/juce_box2d/box2d/Common/b2Settings.cpp
vendored
Normal file
41
deps/juce/modules/juce_box2d/box2d/Common/b2Settings.cpp
vendored
Normal file
@ -0,0 +1,41 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2Settings.h"
|
||||
|
||||
b2Version b2_version = {2, 2, 1};
|
||||
|
||||
// Memory allocators. Modify these to use your own allocator.
|
||||
void* b2Alloc(int32 size)
|
||||
{
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
void b2Free(void* mem)
|
||||
{
|
||||
free(mem);
|
||||
}
|
||||
|
||||
// You can modify this to use your logging facility.
|
||||
void b2Log(const char* string, ...)
|
||||
{
|
||||
va_list args;
|
||||
va_start(args, string);
|
||||
vprintf(string, args);
|
||||
va_end(args);
|
||||
}
|
141
deps/juce/modules/juce_box2d/box2d/Common/b2Settings.h
vendored
Normal file
141
deps/juce/modules/juce_box2d/box2d/Common/b2Settings.h
vendored
Normal file
@ -0,0 +1,141 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef B2_SETTINGS_H
|
||||
#define B2_SETTINGS_H
|
||||
|
||||
#define B2_NOT_USED(x) ((void)(x))
|
||||
#define b2Assert(A) jassert(A)
|
||||
|
||||
typedef float float32;
|
||||
typedef double float64;
|
||||
|
||||
#define b2_maxFloat FLT_MAX
|
||||
#define b2_epsilon FLT_EPSILON
|
||||
#define b2_pi 3.14159265359f
|
||||
|
||||
/// @file
|
||||
/// Global tuning constants based on meters-kilograms-seconds (MKS) units.
|
||||
///
|
||||
|
||||
// Collision
|
||||
|
||||
/// The maximum number of contact points between two convex shapes. Do
|
||||
/// not change this value.
|
||||
#define b2_maxManifoldPoints 2
|
||||
|
||||
/// The maximum number of vertices on a convex polygon. You cannot increase
|
||||
/// this too much because b2BlockAllocator has a maximum object size.
|
||||
#define b2_maxPolygonVertices 8
|
||||
|
||||
/// This is used to fatten AABBs in the dynamic tree. This allows proxies
|
||||
/// to move by a small amount without triggering a tree adjustment.
|
||||
/// This is in meters.
|
||||
#define b2_aabbExtension 0.1f
|
||||
|
||||
/// This is used to fatten AABBs in the dynamic tree. This is used to predict
|
||||
/// the future position based on the current displacement.
|
||||
/// This is a dimensionless multiplier.
|
||||
#define b2_aabbMultiplier 2.0f
|
||||
|
||||
/// A small length used as a collision and constraint tolerance. Usually it is
|
||||
/// chosen to be numerically significant, but visually insignificant.
|
||||
#define b2_linearSlop 0.005f
|
||||
|
||||
/// A small angle used as a collision and constraint tolerance. Usually it is
|
||||
/// chosen to be numerically significant, but visually insignificant.
|
||||
#define b2_angularSlop (2.0f / 180.0f * b2_pi)
|
||||
|
||||
/// The radius of the polygon/edge shape skin. This should not be modified. Making
|
||||
/// this smaller means polygons will have an insufficient buffer for continuous collision.
|
||||
/// Making it larger may create artifacts for vertex collision.
|
||||
#define b2_polygonRadius (2.0f * b2_linearSlop)
|
||||
|
||||
/// Maximum number of sub-steps per contact in continuous physics simulation.
|
||||
#define b2_maxSubSteps 8
|
||||
|
||||
|
||||
// Dynamics
|
||||
|
||||
/// Maximum number of contacts to be handled to solve a TOI impact.
|
||||
#define b2_maxTOIContacts 32
|
||||
|
||||
/// A velocity threshold for elastic collisions. Any collision with a relative linear
|
||||
/// velocity below this threshold will be treated as inelastic.
|
||||
#define b2_velocityThreshold 1.0f
|
||||
|
||||
/// The maximum linear position correction used when solving constraints. This helps to
|
||||
/// prevent overshoot.
|
||||
#define b2_maxLinearCorrection 0.2f
|
||||
|
||||
/// The maximum angular position correction used when solving constraints. This helps to
|
||||
/// prevent overshoot.
|
||||
#define b2_maxAngularCorrection (8.0f / 180.0f * b2_pi)
|
||||
|
||||
/// The maximum linear velocity of a body. This limit is very large and is used
|
||||
/// to prevent numerical problems. You shouldn't need to adjust this.
|
||||
#define b2_maxTranslation 2.0f
|
||||
#define b2_maxTranslationSquared (b2_maxTranslation * b2_maxTranslation)
|
||||
|
||||
/// The maximum angular velocity of a body. This limit is very large and is used
|
||||
/// to prevent numerical problems. You shouldn't need to adjust this.
|
||||
#define b2_maxRotation (0.5f * b2_pi)
|
||||
#define b2_maxRotationSquared (b2_maxRotation * b2_maxRotation)
|
||||
|
||||
/// This scale factor controls how fast overlap is resolved. Ideally this would be 1 so
|
||||
/// that overlap is removed in one time step. However using values close to 1 often lead
|
||||
/// to overshoot.
|
||||
#define b2_baumgarte 0.2f
|
||||
#define b2_toiBaugarte 0.75f
|
||||
|
||||
|
||||
// Sleep
|
||||
|
||||
/// The time that a body must be still before it will go to sleep.
|
||||
#define b2_timeToSleep 0.5f
|
||||
|
||||
/// A body cannot sleep if its linear velocity is above this tolerance.
|
||||
#define b2_linearSleepTolerance 0.01f
|
||||
|
||||
/// A body cannot sleep if its angular velocity is above this tolerance.
|
||||
#define b2_angularSleepTolerance (2.0f / 180.0f * b2_pi)
|
||||
|
||||
// Memory Allocation
|
||||
|
||||
/// Implement this function to use your own memory allocator.
|
||||
void* b2Alloc(juce::int32 size);
|
||||
|
||||
/// If you implement b2Alloc, you should also implement this function.
|
||||
void b2Free(void* mem);
|
||||
|
||||
/// Logging function.
|
||||
void b2Log(const char* string, ...);
|
||||
|
||||
/// Version numbering scheme.
|
||||
/// See http://en.wikipedia.org/wiki/Software_versioning
|
||||
struct b2Version
|
||||
{
|
||||
juce::int32 major; ///< significant changes
|
||||
juce::int32 minor; ///< incremental changes
|
||||
juce::int32 revision; ///< bug fixes
|
||||
};
|
||||
|
||||
/// Current version.
|
||||
extern b2Version b2_version;
|
||||
|
||||
#endif
|
83
deps/juce/modules/juce_box2d/box2d/Common/b2StackAllocator.cpp
vendored
Normal file
83
deps/juce/modules/juce_box2d/box2d/Common/b2StackAllocator.cpp
vendored
Normal file
@ -0,0 +1,83 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2StackAllocator.h"
|
||||
#include "b2Math.h"
|
||||
|
||||
b2StackAllocator::b2StackAllocator()
|
||||
{
|
||||
m_index = 0;
|
||||
m_allocation = 0;
|
||||
m_maxAllocation = 0;
|
||||
m_entryCount = 0;
|
||||
}
|
||||
|
||||
b2StackAllocator::~b2StackAllocator()
|
||||
{
|
||||
b2Assert(m_index == 0);
|
||||
b2Assert(m_entryCount == 0);
|
||||
}
|
||||
|
||||
void* b2StackAllocator::Allocate(int32 size)
|
||||
{
|
||||
b2Assert(m_entryCount < b2_maxStackEntries);
|
||||
|
||||
b2StackEntry* entry = m_entries + m_entryCount;
|
||||
entry->size = size;
|
||||
if (m_index + size > b2_stackSize)
|
||||
{
|
||||
entry->data = (char*)b2Alloc(size);
|
||||
entry->usedMalloc = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
entry->data = m_data + m_index;
|
||||
entry->usedMalloc = false;
|
||||
m_index += size;
|
||||
}
|
||||
|
||||
m_allocation += size;
|
||||
m_maxAllocation = b2Max(m_maxAllocation, m_allocation);
|
||||
++m_entryCount;
|
||||
|
||||
return entry->data;
|
||||
}
|
||||
|
||||
void b2StackAllocator::Free(void* p)
|
||||
{
|
||||
b2Assert(m_entryCount > 0);
|
||||
b2StackEntry* entry = m_entries + m_entryCount - 1;
|
||||
b2Assert(p == entry->data);
|
||||
if (entry->usedMalloc)
|
||||
{
|
||||
b2Free(p);
|
||||
}
|
||||
else
|
||||
{
|
||||
m_index -= entry->size;
|
||||
}
|
||||
m_allocation -= entry->size;
|
||||
--m_entryCount;
|
||||
|
||||
p = NULL;
|
||||
}
|
||||
|
||||
int32 b2StackAllocator::GetMaxAllocation() const
|
||||
{
|
||||
return m_maxAllocation;
|
||||
}
|
60
deps/juce/modules/juce_box2d/box2d/Common/b2StackAllocator.h
vendored
Normal file
60
deps/juce/modules/juce_box2d/box2d/Common/b2StackAllocator.h
vendored
Normal file
@ -0,0 +1,60 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef B2_STACK_ALLOCATOR_H
|
||||
#define B2_STACK_ALLOCATOR_H
|
||||
|
||||
#include "b2Settings.h"
|
||||
|
||||
const juce::int32 b2_stackSize = 100 * 1024; // 100k
|
||||
const juce::int32 b2_maxStackEntries = 32;
|
||||
|
||||
struct b2StackEntry
|
||||
{
|
||||
char* data;
|
||||
juce::int32 size;
|
||||
bool usedMalloc;
|
||||
};
|
||||
|
||||
// This is a stack allocator used for fast per step allocations.
|
||||
// You must nest allocate/free pairs. The code will assert
|
||||
// if you try to interleave multiple allocate/free pairs.
|
||||
class b2StackAllocator
|
||||
{
|
||||
public:
|
||||
b2StackAllocator();
|
||||
~b2StackAllocator();
|
||||
|
||||
void* Allocate(juce::int32 size);
|
||||
void Free(void* p);
|
||||
|
||||
juce::int32 GetMaxAllocation() const;
|
||||
|
||||
private:
|
||||
|
||||
char m_data[b2_stackSize];
|
||||
juce::int32 m_index;
|
||||
|
||||
juce::int32 m_allocation;
|
||||
juce::int32 m_maxAllocation;
|
||||
|
||||
b2StackEntry m_entries[b2_maxStackEntries];
|
||||
juce::int32 m_entryCount;
|
||||
};
|
||||
|
||||
#endif
|
34
deps/juce/modules/juce_box2d/box2d/Common/b2Timer.cpp
vendored
Normal file
34
deps/juce/modules/juce_box2d/box2d/Common/b2Timer.cpp
vendored
Normal file
@ -0,0 +1,34 @@
|
||||
/*
|
||||
* Copyright (c) 2011 Erin Catto http://box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#include "b2Timer.h"
|
||||
|
||||
b2Timer::b2Timer()
|
||||
{
|
||||
Reset();
|
||||
}
|
||||
|
||||
void b2Timer::Reset()
|
||||
{
|
||||
juceStartTime = juce::Time::getCurrentTime();
|
||||
}
|
||||
|
||||
float32 b2Timer::GetMilliseconds() const
|
||||
{
|
||||
return static_cast<float32> ((juce::Time::getCurrentTime() - juceStartTime).inMilliseconds());
|
||||
}
|
43
deps/juce/modules/juce_box2d/box2d/Common/b2Timer.h
vendored
Normal file
43
deps/juce/modules/juce_box2d/box2d/Common/b2Timer.h
vendored
Normal file
@ -0,0 +1,43 @@
|
||||
/*
|
||||
* Copyright (c) 2011 Erin Catto http://box2d.org
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
|
||||
#ifndef BOX2D_TIMER_H
|
||||
#define BOX2D_TIMER_H
|
||||
|
||||
#include "b2Settings.h"
|
||||
|
||||
/// Timer for profiling. This has platform specific code and may
|
||||
/// not work on every platform.
|
||||
class b2Timer
|
||||
{
|
||||
public:
|
||||
|
||||
/// Constructor
|
||||
b2Timer();
|
||||
|
||||
/// Reset the timer.
|
||||
void Reset();
|
||||
|
||||
/// Get the time since construction or the last reset.
|
||||
float32 GetMilliseconds() const;
|
||||
|
||||
private:
|
||||
juce::Time juceStartTime;
|
||||
};
|
||||
|
||||
#endif
|
Reference in New Issue
Block a user