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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DS_FOUNDATION_PSUTILITIES_H
#define QT3DS_FOUNDATION_PSUTILITIES_H
#include "foundation/Qt3DSVec3.h"
#include "foundation/Qt3DS.h"
#include "foundation/Qt3DSIntrinsics.h"
namespace qt3ds {
namespace foundation {
// PT: checked casts
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE QT3DSU16 to16(QT3DSU32 value)
{
QT3DS_ASSERT(value <= 0xffff);
return QT3DSU16(value);
}
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE QT3DSU8 to8(QT3DSU16 value)
{
QT3DS_ASSERT(value <= 0xff);
return QT3DSU8(value);
}
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE QT3DSU8 to8(QT3DSU32 value)
{
QT3DS_ASSERT(value <= 0xff);
return QT3DSU8(value);
}
template <class T>
QT3DS_CUDA_CALLABLE QT3DS_INLINE void swap(T &x, T &y)
{
// crash with optimizations enabled, ticket in Sony
#ifdef QT3DS_PSP2
#pragma control % push O = 0
#endif
T tmp = x;
x = y;
y = tmp;
#ifdef QT3DS_PSP2
#pragma control % pop O
#endif
}
/*!
Get number of elements in array
*/
template <typename T, size_t N>
char (&ArraySizeHelper(T (&array)[N]))[N];
#define QT3DS_ARRAY_SIZE(_array) (sizeof(qt3ds::foundation::ArraySizeHelper(_array)))
/*!
Sort two elements using operator<
On return x will be the smaller of the two
*/
template <class T>
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE void order(T &x, T &y)
{
if (y < x)
swap(x, y);
}
// most architectures can do predication on real comparisons, and on VMX, it matters
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE void order(NVReal &x, NVReal &y)
{
NVReal newX = NVMin(x, y);
NVReal newY = NVMax(x, y);
x = newX;
y = newY;
}
/*!
Sort two elements using operator< and also keep order
of any extra data
*/
template <class T, class E1>
QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE void order(T &x, T &y, E1 &xe1, E1 &ye1)
{
if (y < x) {
swap(x, y);
swap(xe1, ye1);
}
}
QT3DS_INLINE void debugBreak()
{
#if defined(QT3DS_WINDOWS)
__debugbreak();
#elif defined(QT3DS_LINUX) || defined(QT3DS_ANDROID) || defined(QT3DS_QNX)
asm("int $3");
#elif defined(QT3DS_GNUC)
__builtin_trap();
#else
QT3DS_ASSERT(false);
#endif
}
bool checkValid(const float &);
bool checkValid(const QT3DSVec3 &);
bool checkValid(const QT3DSQuat &);
bool checkValid(const QT3DSMat33 &);
bool checkValid(const NVTransform &);
bool checkValid(const char *);
QT3DS_CUDA_CALLABLE QT3DS_INLINE QT3DSI32 getPadding2(size_t value, QT3DSU32 alignment)
{
const QT3DSI32 mask = alignment - 1;
const QT3DSI32 overhead = QT3DSI32(value) & mask;
return (alignment - overhead) & mask;
}
// PT: "After doing a dcbz128, there is a delay of about 140 cycles before writes to that cache
// line can proceed without stalling.
// This is much faster than an L2 cache miss, but for ideal performance, it is best to avoid
// this stall by doing the cache-line
// zeroing a few cache lines ahead of where you are writing."
QT3DS_FORCE_INLINE void invalidateCache(void *QT3DS_RESTRICT voidPtr, QT3DSI32 size)
{
#ifdef QT3DS_X360
QT3DSU8 *QT3DS_RESTRICT ptr = reinterpret_cast<QT3DSU8 *>(voidPtr);
const QT3DSI32 padding = getPadding2(size_t(ptr), 128);
const QT3DSI32 sizeToCover = size - padding;
if (sizeToCover >= 128) {
QT3DSU8 *ptr128 = ptr + padding;
QT3DSU32 nb128 = sizeToCover / 128;
while (nb128--) {
// NV::memZero128(ptr128);
qt3ds::foundation::memZero128(ptr128);
ptr128 += 128;
}
}
#else
(void)voidPtr;
(void)size;
#endif
}
// equivalent to std::max_element
template <typename T>
inline const T *maxElement(const T *first, const T *last)
{
const T *m = first;
for (const T *it = first + 1; it < last; ++it)
if (*m < *it)
m = it;
return m;
}
} // namespace foundation
} // namespace qt3ds
#define QT3DS_STRINGIZE_HELPER(X) #X
#define QT3DS_STRINGIZE(X) QT3DS_STRINGIZE_HELPER(X)
#define QT3DS_CONCAT_HELPER(X, Y) X##Y
#define QT3DS_CONCAT(X, Y) QT3DS_CONCAT_HELPER(X, Y)
#endif
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