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-rw-r--r--src/gui/math3d/qmatrix4x4.cpp19
-rw-r--r--src/gui/math3d/qmatrix4x4.h30
2 files changed, 43 insertions, 6 deletions
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index 95b9524172f..ec6e696ba00 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -294,6 +294,7 @@ double QMatrix4x4::determinant() const
if ((flagBits & ~(Translation | Rotation2D | Rotation)) == Identity)
return 1.0;
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
if (flagBits < Rotation2D)
@@ -355,8 +356,10 @@ QMatrix4x4 QMatrix4x4::inverted(bool *invertible) const
*invertible = true;
return orthonormalInverse();
} else if (flagBits < Perspective) {
+ Q_DECL_UNINITIALIZED
QMatrix4x4 inv(Qt::Uninitialized);
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
@@ -391,8 +394,10 @@ QMatrix4x4 QMatrix4x4::inverted(bool *invertible) const
return inv;
}
+ Q_DECL_UNINITIALIZED
QMatrix4x4 inv(Qt::Uninitialized);
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
@@ -465,6 +470,7 @@ QMatrix3x3 QMatrix4x4::normalMatrix() const
return inv;
}
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
double det = matrixDet3(mm, 0, 1, 2, 0, 1, 2);
@@ -493,6 +499,7 @@ QMatrix3x3 QMatrix4x4::normalMatrix() const
*/
QMatrix4x4 QMatrix4x4::transposed() const
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 result(Qt::Uninitialized);
for (int row = 0; row < 4; ++row) {
for (int col = 0; col < 4; ++col) {
@@ -709,6 +716,7 @@ QMatrix4x4& QMatrix4x4::operator/=(float divisor)
*/
QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = matrix.m[0][0] / divisor;
m.m[0][1] = matrix.m[0][1] / divisor;
@@ -1141,6 +1149,7 @@ void QMatrix4x4::rotate(float angle, float x, float y, float z)
z = float(double(z) / len);
}
float ic = 1.0f - c;
+ Q_DECL_UNINITIALIZED
QMatrix4x4 rot(Qt::Uninitialized);
rot.m[0][0] = x * x * ic + c;
rot.m[1][0] = x * y * ic - z * s;
@@ -1244,6 +1253,7 @@ void QMatrix4x4::projectedRotate(float angle, float x, float y, float z, float d
z = float(double(z) / len);
}
const float ic = 1.0f - c;
+ Q_DECL_UNINITIALIZED
QMatrix4x4 rot(Qt::Uninitialized);
rot.m[0][0] = x * x * ic + c;
rot.m[1][0] = x * y * ic - z * s;
@@ -1306,6 +1316,7 @@ void QMatrix4x4::rotate(const QQuaternion& quaternion)
// Algorithm from:
// http://www.j3d.org/matrix_faq/matrfaq_latest.html#Q54
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
const float f2x = quaternion.x() + quaternion.x();
@@ -1393,6 +1404,7 @@ void QMatrix4x4::ortho(float left, float right, float bottom, float top, float n
const float width = right - left;
const float invheight = top - bottom;
const float clip = farPlane - nearPlane;
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = 2.0f / width;
m.m[1][0] = 0.0f;
@@ -1431,6 +1443,7 @@ void QMatrix4x4::frustum(float left, float right, float bottom, float top, float
return;
// Construct the projection.
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
const float width = right - left;
const float invheight = top - bottom;
@@ -1474,6 +1487,7 @@ void QMatrix4x4::perspective(float verticalAngle, float aspectRatio, float nearP
return;
// Construct the projection.
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
const float radians = qDegreesToRadians(verticalAngle / 2.0f);
const float sine = std::sin(radians);
@@ -1524,6 +1538,7 @@ void QMatrix4x4::lookAt(const QVector3D& eye, const QVector3D& center, const QVe
QVector3D side = QVector3D::crossProduct(forward, up).normalized();
QVector3D upVector = QVector3D::crossProduct(side, forward);
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = side.x();
m.m[1][0] = side.y();
@@ -1573,6 +1588,7 @@ void QMatrix4x4::viewport(float left, float bottom, float width, float height, f
const float w2 = width / 2.0f;
const float h2 = height / 2.0f;
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = w2;
m.m[1][0] = 0.0f;
@@ -1871,6 +1887,7 @@ QRectF QMatrix4x4::mapRect(const QRectF& rect) const
// of just rotations and translations.
QMatrix4x4 QMatrix4x4::orthonormalInverse() const
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 result(Qt::Uninitialized);
result.m[0][0] = m[0][0];
@@ -1943,6 +1960,7 @@ void QMatrix4x4::optimize()
flagBits &= ~Scale;
} else {
// If the columns are orthonormal and form a right-handed system, then there is no scale.
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
double det = matrixDet2(mm, 0, 1, 0, 1);
@@ -1957,6 +1975,7 @@ void QMatrix4x4::optimize()
}
} else {
// If the columns are orthonormal and form a right-handed system, then there is no scale.
+ Q_DECL_UNINITIALIZED
double mm[4][4];
copyToDoubles(m, mm);
double det = matrixDet3(mm, 0, 1, 2, 0, 1, 2);
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h
index c2c3ece7fd6..2a801905ce0 100644
--- a/src/gui/math3d/qmatrix4x4.h
+++ b/src/gui/math3d/qmatrix4x4.h
@@ -564,6 +564,7 @@ inline bool QMatrix4x4::operator!=(const QMatrix4x4& other) const
inline QMatrix4x4 operator+(const QMatrix4x4& m1, const QMatrix4x4& m2)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = m1.m[0][0] + m2.m[0][0];
m.m[0][1] = m1.m[0][1] + m2.m[0][1];
@@ -586,6 +587,7 @@ inline QMatrix4x4 operator+(const QMatrix4x4& m1, const QMatrix4x4& m2)
inline QMatrix4x4 operator-(const QMatrix4x4& m1, const QMatrix4x4& m2)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = m1.m[0][0] - m2.m[0][0];
m.m[0][1] = m1.m[0][1] - m2.m[0][1];
@@ -608,21 +610,34 @@ inline QMatrix4x4 operator-(const QMatrix4x4& m1, const QMatrix4x4& m2)
inline QMatrix4x4 operator*(const QMatrix4x4& m1, const QMatrix4x4& m2)
{
+ Q_DECL_UNINITIALIZED
+ QMatrix4x4 m(Qt::Uninitialized);
QMatrix4x4::Flags flagBits = m1.flagBits | m2.flagBits;
if (flagBits.toInt() < QMatrix4x4::Rotation2D) {
- QMatrix4x4 m = m1;
- m.m[3][0] = m1.m[3][0] + m1.m[0][0] * m2.m[3][0];
- m.m[3][1] = m1.m[3][1] + m1.m[1][1] * m2.m[3][1];
- m.m[3][2] = m1.m[3][2] + m1.m[2][2] * m2.m[3][2];
-
+ // Scale | Translation
m.m[0][0] = m1.m[0][0] * m2.m[0][0];
+ m.m[0][1] = 0.0f;
+ m.m[0][2] = 0.0f;
+ m.m[0][3] = 0.0f;
+
+ m.m[1][0] = 0.0f;
m.m[1][1] = m1.m[1][1] * m2.m[1][1];
+ m.m[1][2] = 0.0f;
+ m.m[1][3] = 0.0f;
+
+ m.m[2][0] = 0.0f;
+ m.m[2][1] = 0.0f;
m.m[2][2] = m1.m[2][2] * m2.m[2][2];
+ m.m[2][3] = 0.0f;
+
+ m.m[3][0] = m1.m[3][0] + m1.m[0][0] * m2.m[3][0];
+ m.m[3][1] = m1.m[3][1] + m1.m[1][1] * m2.m[3][1];
+ m.m[3][2] = m1.m[3][2] + m1.m[2][2] * m2.m[3][2];
+ m.m[3][3] = 1.0f;
m.flagBits = flagBits;
return m;
}
- QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = m1.m[0][0] * m2.m[0][0]
+ m1.m[1][0] * m2.m[0][1]
+ m1.m[2][0] * m2.m[0][2]
@@ -843,6 +858,7 @@ inline QPointF operator*(const QMatrix4x4& matrix, const QPointF& point)
inline QMatrix4x4 operator-(const QMatrix4x4& matrix)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = -matrix.m[0][0];
m.m[0][1] = -matrix.m[0][1];
@@ -865,6 +881,7 @@ inline QMatrix4x4 operator-(const QMatrix4x4& matrix)
inline QMatrix4x4 operator*(float factor, const QMatrix4x4& matrix)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = matrix.m[0][0] * factor;
m.m[0][1] = matrix.m[0][1] * factor;
@@ -887,6 +904,7 @@ inline QMatrix4x4 operator*(float factor, const QMatrix4x4& matrix)
inline QMatrix4x4 operator*(const QMatrix4x4& matrix, float factor)
{
+ Q_DECL_UNINITIALIZED
QMatrix4x4 m(Qt::Uninitialized);
m.m[0][0] = matrix.m[0][0] * factor;
m.m[0][1] = matrix.m[0][1] * factor;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-13 05:35:16 +0000