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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "utils/ColorUtils.h"
#include <algorithm>
#include <math.h>
#include <memory>
#include <string.h>
#ifdef __GNUC__
// under gcc, inline will only take place if optimizations are applied (-O). this will force inline even with optimizations.
#define XBMC_FORCE_INLINE __attribute__((always_inline))
#else
#define XBMC_FORCE_INLINE
#endif
class TransformMatrix
{
public:
TransformMatrix()
{
Reset();
};
void Reset()
{
m[0][0] = 1.0f; m[0][1] = m[0][2] = m[0][3] = 0.0f;
m[1][0] = m[1][2] = m[1][3] = 0.0f; m[1][1] = 1.0f;
m[2][0] = m[2][1] = m[2][3] = 0.0f; m[2][2] = 1.0f;
alpha = red = green = blue = 1.0f;
identity = true;
};
static TransformMatrix CreateTranslation(float transX, float transY, float transZ = 0)
{
TransformMatrix translation;
translation.SetTranslation(transX, transY, transZ);
return translation;
}
void SetTranslation(float transX, float transY, float transZ)
{
m[0][1] = m[0][2] = 0.0f; m[0][0] = 1.0f; m[0][3] = transX;
m[1][0] = m[1][2] = 0.0f; m[1][1] = 1.0f; m[1][3] = transY;
m[2][0] = m[2][1] = 0.0f; m[2][2] = 1.0f; m[2][3] = transZ;
alpha = red = green = blue = 1.0f;
identity = (transX == 0 && transY == 0 && transZ == 0);
}
static TransformMatrix CreateScaler(float scaleX, float scaleY, float scaleZ = 1.0f)
{
TransformMatrix scaler;
scaler.m[0][0] = scaleX;
scaler.m[1][1] = scaleY;
scaler.m[2][2] = scaleZ;
scaler.identity = (scaleX == 1 && scaleY == 1 && scaleZ == 1);
return scaler;
};
void SetScaler(float scaleX, float scaleY, float centerX, float centerY)
{
// Trans(centerX,centerY,centerZ)*Scale(scaleX,scaleY,scaleZ)*Trans(-centerX,-centerY,-centerZ)
float centerZ = 0.0f, scaleZ = 1.0f;
m[0][0] = scaleX; m[0][1] = 0.0f; m[0][2] = 0.0f; m[0][3] = centerX*(1-scaleX);
m[1][0] = 0.0f; m[1][1] = scaleY; m[1][2] = 0.0f; m[1][3] = centerY*(1-scaleY);
m[2][0] = 0.0f; m[2][1] = 0.0f; m[2][2] = scaleZ; m[2][3] = centerZ*(1-scaleZ);
alpha = red = green = blue = 1.0f;
identity = (scaleX == 1 && scaleY == 1);
};
void SetXRotation(float angle, float y, float z, float ar = 1.0f)
{ // angle about the X axis, centered at y,z where our coordinate system has aspect ratio ar.
// Trans(0,y,z)*Scale(1,1/ar,1)*RotateX(angle)*Scale(ar,1,1)*Trans(0,-y,-z);
float c = cos(angle); float s = sin(angle);
m[0][0] = ar; m[0][1] = 0.0f; m[0][2] = 0.0f; m[0][3] = 0.0f;
m[1][0] = 0.0f; m[1][1] = c/ar; m[1][2] = -s/ar; m[1][3] = (-y*c+s*z)/ar + y;
m[2][0] = 0.0f; m[2][1] = s; m[2][2] = c; m[2][3] = (-y*s-c*z) + z;
alpha = red = green = blue = 1.0f;
identity = (angle == 0);
}
void SetYRotation(float angle, float x, float z, float ar = 1.0f)
{ // angle about the Y axis, centered at x,z where our coordinate system has aspect ratio ar.
// Trans(x,0,z)*Scale(1/ar,1,1)*RotateY(angle)*Scale(ar,1,1)*Trans(-x,0,-z);
float c = cos(angle); float s = sin(angle);
m[0][0] = c; m[0][1] = 0.0f; m[0][2] = -s/ar; m[0][3] = -x*c + s*z/ar + x;
m[1][0] = 0.0f; m[1][1] = 1.0f; m[1][2] = 0.0f; m[1][3] = 0.0f;
m[2][0] = ar*s; m[2][1] = 0.0f; m[2][2] = c; m[2][3] = -ar*x*s - c*z + z;
alpha = red = green = blue = 1.0f;
identity = (angle == 0);
}
static TransformMatrix CreateZRotation(float angle, float x, float y, float ar = 1.0f)
{ // angle about the Z axis, centered at x,y where our coordinate system has aspect ratio ar.
// Trans(x,y,0)*Scale(1/ar,1,1)*RotateZ(angle)*Scale(ar,1,1)*Trans(-x,-y,0)
TransformMatrix rot;
rot.SetZRotation(angle, x, y, ar);
return rot;
}
void SetZRotation(float angle, float x, float y, float ar = 1.0f)
{ // angle about the Z axis, centered at x,y where our coordinate system has aspect ratio ar.
// Trans(x,y,0)*Scale(1/ar,1,1)*RotateZ(angle)*Scale(ar,1,1)*Trans(-x,-y,0)
float c = cos(angle); float s = sin(angle);
m[0][0] = c; m[0][1] = -s/ar; m[0][2] = 0.0f; m[0][3] = -x*c + s*y/ar + x;
m[1][0] = s*ar; m[1][1] = c; m[1][2] = 0.0f; m[1][3] = -ar*x*s - c*y + y;
m[2][0] = 0.0f; m[2][1] = 0.0f; m[2][2] = 1.0f; m[2][3] = 0.0f;
alpha = red = green = blue = 1.0f;
identity = (angle == 0);
}
static TransformMatrix CreateFader(float a)
{
TransformMatrix fader;
fader.SetFader(a);
return fader;
}
static TransformMatrix CreateFader(float a, float r, float g, float b)
{
TransformMatrix fader;
fader.SetFader(a, r, g, b);
return fader;
}
void SetFader(float a)
{
m[0][0] = 1.0f; m[0][1] = 0.0f; m[0][2] = 0.0f; m[0][3] = 0.0f;
m[1][0] = 0.0f; m[1][1] = 1.0f; m[1][2] = 0.0f; m[1][3] = 0.0f;
m[2][0] = 0.0f; m[2][1] = 0.0f; m[2][2] = 1.0f; m[2][3] = 0.0f;
alpha = a;
red = green = blue = 1.0f;
identity = (a == 1.0f);
}
void SetFader(float a, float r, float g, float b)
{
m[0][0] = 1.0f; m[0][1] = 0.0f; m[0][2] = 0.0f; m[0][3] = 0.0f;
m[1][0] = 0.0f; m[1][1] = 1.0f; m[1][2] = 0.0f; m[1][3] = 0.0f;
m[2][0] = 0.0f; m[2][1] = 0.0f; m[2][2] = 1.0f; m[2][3] = 0.0f;
alpha = a;
red = r;
green = g;
blue = b;
identity = ((a == 1.0f) && (r == 1.0f) && (g == 1.0f) && (b == 1.0f));
}
// multiplication operators
const TransformMatrix &operator *=(const TransformMatrix &right)
{
if (right.identity)
return *this;
if (identity)
{
*this = right;
return *this;
}
float t00 = m[0][0] * right.m[0][0] + m[0][1] * right.m[1][0] + m[0][2] * right.m[2][0];
float t01 = m[0][0] * right.m[0][1] + m[0][1] * right.m[1][1] + m[0][2] * right.m[2][1];
float t02 = m[0][0] * right.m[0][2] + m[0][1] * right.m[1][2] + m[0][2] * right.m[2][2];
m[0][3] = m[0][0] * right.m[0][3] + m[0][1] * right.m[1][3] + m[0][2] * right.m[2][3] + m[0][3];
m[0][0] = t00; m[0][1] = t01; m[0][2] = t02;
t00 = m[1][0] * right.m[0][0] + m[1][1] * right.m[1][0] + m[1][2] * right.m[2][0];
t01 = m[1][0] * right.m[0][1] + m[1][1] * right.m[1][1] + m[1][2] * right.m[2][1];
t02 = m[1][0] * right.m[0][2] + m[1][1] * right.m[1][2] + m[1][2] * right.m[2][2];
m[1][3] = m[1][0] * right.m[0][3] + m[1][1] * right.m[1][3] + m[1][2] * right.m[2][3] + m[1][3];
m[1][0] = t00; m[1][1] = t01; m[1][2] = t02;
t00 = m[2][0] * right.m[0][0] + m[2][1] * right.m[1][0] + m[2][2] * right.m[2][0];
t01 = m[2][0] * right.m[0][1] + m[2][1] * right.m[1][1] + m[2][2] * right.m[2][1];
t02 = m[2][0] * right.m[0][2] + m[2][1] * right.m[1][2] + m[2][2] * right.m[2][2];
m[2][3] = m[2][0] * right.m[0][3] + m[2][1] * right.m[1][3] + m[2][2] * right.m[2][3] + m[2][3];
m[2][0] = t00; m[2][1] = t01; m[2][2] = t02;
alpha *= right.alpha;
red *= right.red;
green *= right.green;
blue *= right.blue;
identity = false;
return *this;
}
TransformMatrix operator *(const TransformMatrix &right) const
{
if (right.identity)
return *this;
if (identity)
return right;
TransformMatrix result;
result.m[0][0] = m[0][0] * right.m[0][0] + m[0][1] * right.m[1][0] + m[0][2] * right.m[2][0];
result.m[0][1] = m[0][0] * right.m[0][1] + m[0][1] * right.m[1][1] + m[0][2] * right.m[2][1];
result.m[0][2] = m[0][0] * right.m[0][2] + m[0][1] * right.m[1][2] + m[0][2] * right.m[2][2];
result.m[0][3] = m[0][0] * right.m[0][3] + m[0][1] * right.m[1][3] + m[0][2] * right.m[2][3] + m[0][3];
result.m[1][0] = m[1][0] * right.m[0][0] + m[1][1] * right.m[1][0] + m[1][2] * right.m[2][0];
result.m[1][1] = m[1][0] * right.m[0][1] + m[1][1] * right.m[1][1] + m[1][2] * right.m[2][1];
result.m[1][2] = m[1][0] * right.m[0][2] + m[1][1] * right.m[1][2] + m[1][2] * right.m[2][2];
result.m[1][3] = m[1][0] * right.m[0][3] + m[1][1] * right.m[1][3] + m[1][2] * right.m[2][3] + m[1][3];
result.m[2][0] = m[2][0] * right.m[0][0] + m[2][1] * right.m[1][0] + m[2][2] * right.m[2][0];
result.m[2][1] = m[2][0] * right.m[0][1] + m[2][1] * right.m[1][1] + m[2][2] * right.m[2][1];
result.m[2][2] = m[2][0] * right.m[0][2] + m[2][1] * right.m[1][2] + m[2][2] * right.m[2][2];
result.m[2][3] = m[2][0] * right.m[0][3] + m[2][1] * right.m[1][3] + m[2][2] * right.m[2][3] + m[2][3];
result.alpha = alpha * right.alpha;
result.red = red * right.red;
result.green = green * right.green;
result.blue = blue * right.blue;
result.identity = false;
return result;
}
inline void TransformPosition(float &x, float &y, float &z) const XBMC_FORCE_INLINE
{
float newX = m[0][0] * x + m[0][1] * y + m[0][2] * z + m[0][3];
float newY = m[1][0] * x + m[1][1] * y + m[1][2] * z + m[1][3];
z = m[2][0] * x + m[2][1] * y + m[2][2] * z + m[2][3];
y = newY;
x = newX;
}
inline void TransformPositionUnscaled(float &x, float &y, float &z) const XBMC_FORCE_INLINE
{
float n;
// calculate the norm of the transformed (but not translated) vectors involved
n = sqrt(m[0][0]*m[0][0] + m[0][1]*m[0][1] + m[0][2]*m[0][2]);
float newX = (m[0][0] * x + m[0][1] * y + m[0][2] * z)/n + m[0][3];
n = sqrt(m[1][0]*m[1][0] + m[1][1]*m[1][1] + m[1][2]*m[1][2]);
float newY = (m[1][0] * x + m[1][1] * y + m[1][2] * z)/n + m[1][3];
n = sqrt(m[2][0]*m[2][0] + m[2][1]*m[2][1] + m[2][2]*m[2][2]);
float newZ = (m[2][0] * x + m[2][1] * y + m[2][2] * z)/n + m[2][3];
z = newZ;
y = newY;
x = newX;
}
inline void InverseTransformPosition(float &x, float &y) const XBMC_FORCE_INLINE
{ // used for mouse - no way to find z
x -= m[0][3]; y -= m[1][3];
float detM = m[0][0]*m[1][1] - m[0][1]*m[1][0];
float newX = (m[1][1] * x - m[0][1] * y)/detM;
y = (-m[1][0] * x + m[0][0] * y)/detM;
x = newX;
}
inline float TransformXCoord(float x, float y, float z) const XBMC_FORCE_INLINE
{
return m[0][0] * x + m[0][1] * y + m[0][2] * z + m[0][3];
}
inline float TransformYCoord(float x, float y, float z) const XBMC_FORCE_INLINE
{
return m[1][0] * x + m[1][1] * y + m[1][2] * z + m[1][3];
}
inline float TransformZCoord(float x, float y, float z) const XBMC_FORCE_INLINE
{
return m[2][0] * x + m[2][1] * y + m[2][2] * z + m[2][3];
}
inline UTILS::COLOR::Color TransformAlpha(UTILS::COLOR::Color color) const XBMC_FORCE_INLINE
{
return static_cast<UTILS::COLOR::Color>(color * alpha);
}
inline UTILS::COLOR::Color TransformColor(UTILS::COLOR::Color color) const XBMC_FORCE_INLINE
{
UTILS::COLOR::Color a = static_cast<UTILS::COLOR::Color>(((color >> 24) & 0xff) * alpha);
UTILS::COLOR::Color r = static_cast<UTILS::COLOR::Color>(((color >> 16) & 0xff) * red);
UTILS::COLOR::Color g = static_cast<UTILS::COLOR::Color>(((color >> 8) & 0xff) * green);
UTILS::COLOR::Color b = static_cast<UTILS::COLOR::Color>(((color)&0xff) * blue);
if (a > 255)
a = 255;
if (r > 255)
r = 255;
if (g > 255)
g = 255;
if (b > 255)
b = 255;
return ((a << 24) & 0xff000000) | ((r << 16) & 0xff0000) | ((g << 8) & 0xff00) | (b & 0xff);
}
float m[3][4];
float alpha;
float red;
float green;
float blue;
bool identity;
};
inline bool operator==(const TransformMatrix &a, const TransformMatrix &b)
{
bool comparison =
a.alpha == b.alpha && a.red == b.red && a.green == b.green && a.blue == b.blue &&
((a.identity && b.identity) ||
(!a.identity && !b.identity &&
std::equal(&a.m[0][0], &a.m[0][0] + sizeof(a.m) / sizeof(a.m[0][0]), &b.m[0][0])));
return comparison;
}
inline bool operator!=(const TransformMatrix &a, const TransformMatrix &b)
{
return !operator==(a, b);
}
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