From b4954701093739e7a4e54a0669f306922d0d4605 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pasi=20Kera=CC=88nen?= Date: Thu, 6 Jun 2019 16:22:02 +0300 Subject: Long live the slayer! MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Initial commit of OpenGL Runtime to repository. Based on SHA1 61823aaccc6510699a54b34a2fe3f7523dab3b4e of qt3dstudio repository. Task-number: QT3DS-3600 Change-Id: Iaeb80237399f0e5656a19ebec9d1ab3a681d8832 Reviewed-by: Pasi Keränen --- src/foundation/linux/Qt3DSLinuxIntrinsics.h | 209 ++++++++++++++++++++++++++++ 1 file changed, 209 insertions(+) create mode 100644 src/foundation/linux/Qt3DSLinuxIntrinsics.h (limited to 'src/foundation/linux/Qt3DSLinuxIntrinsics.h') diff --git a/src/foundation/linux/Qt3DSLinuxIntrinsics.h b/src/foundation/linux/Qt3DSLinuxIntrinsics.h new file mode 100644 index 0000000..7097460 --- /dev/null +++ b/src/foundation/linux/Qt3DSLinuxIntrinsics.h @@ -0,0 +1,209 @@ +/**************************************************************************** +** +** 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_QT3DS_LINUX_INTRINSICS_H +#define QT3DS_FOUNDATION_QT3DS_LINUX_INTRINSICS_H + +#include "foundation/Qt3DS.h" +#include "foundation/Qt3DSAssert.h" + +#if !(defined QT3DS_LINUX || defined QT3DS_ANDROID || defined QT3DS_APPLE || defined QT3DS_QNX) +#error "This file should only be included by Linux builds!!" +#endif + +#include +#include +#include +#include + +namespace qt3ds { +namespace intrinsics { + //! \brief platform-specific absolute value + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float abs(float a) { return ::fabs(a); } + + //! \brief platform-specific select float + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float fsel(float a, float b, float c) + { + return (a >= 0.0f) ? b : c; + } + + //! \brief platform-specific sign + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float sign(float a) { return (a >= 0.0f) ? 1.0f : -1.0f; } + + //! \brief platform-specific reciprocal + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float recip(float a) { return 1.0f / a; } + + //! \brief platform-specific reciprocal estimate + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float recipFast(float a) { return 1.0f / a; } + + //! \brief platform-specific square root + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float sqrt(float a) { return ::sqrtf(a); } + + //! \brief platform-specific reciprocal square root + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float recipSqrt(float a) { return 1.0f / ::sqrtf(a); } + + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float recipSqrtFast(float a) { return 1.0f / ::sqrtf(a); } + + //! \brief platform-specific sine + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float sin(float a) { return ::sinf(a); } + + //! \brief platform-specific cosine + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float cos(float a) { return ::cosf(a); } + + //! \brief platform-specific minimum + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float selectMin(float a, float b) { return a < b ? a : b; } + + //! \brief platform-specific maximum + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE float selectMax(float a, float b) { return a > b ? a : b; } + + //! \brief platform-specific finiteness check (not INF or NAN) + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE bool isFinite(float a) { return std::isfinite(a); } + + //! \brief platform-specific finiteness check (not INF or NAN) + QT3DS_CUDA_CALLABLE QT3DS_FORCE_INLINE bool isFinite(double a) { return std::isfinite(a); } + QT3DS_FORCE_INLINE void memoryBarrier() + { +#if 0 //!defined (QT3DS_ARM) + smp_mb(); +#endif + } + + /*! + Return the index of the highest set bit. Undefined for zero arg. + */ + QT3DS_INLINE QT3DSU32 highestSetBitUnsafe(QT3DSU32 v) + { + + // http://graphics.stanford.edu/~seander/bithacks.html + static const QT3DSU32 MultiplyDeBruijnBitPosition[32] = { 0, 9, 1, 10, 13, 21, 2, 29, + 11, 14, 16, 18, 22, 25, 3, 30, + 8, 12, 20, 28, 15, 17, 24, 7, + 19, 27, 23, 6, 26, 5, 4, 31 }; + + v |= v >> 1; // first round up to one less than a power of 2 + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + + return MultiplyDeBruijnBitPosition[(QT3DSU32)(v * 0x07C4ACDDU) >> 27]; + } + + /*! + Return the index of the highest set bit. Undefined for zero arg. + */ + QT3DS_INLINE QT3DSI32 lowestSetBitUnsafe(QT3DSU32 v) + { + // http://graphics.stanford.edu/~seander/bithacks.html + static const QT3DSU32 MultiplyDeBruijnBitPosition[32] = { 0, 1, 28, 2, 29, 14, 24, 3, + 30, 22, 20, 15, 25, 17, 4, 8, + 31, 27, 13, 23, 21, 19, 16, 7, + 26, 12, 18, 6, 11, 5, 10, 9 }; + QT3DSI32 w = v; + return MultiplyDeBruijnBitPosition[(QT3DSU32)((w & -w) * 0x077CB531U) >> 27]; + } + + /*! + Returns the index of the highest set bit. Undefined for zero arg. + */ + QT3DS_INLINE QT3DSU32 countLeadingZeros(QT3DSU32 v) + { + QT3DSI32 result = 0; +#ifdef _INTEGRITYPLATFORM + QT3DSU32 testBit = (1U << 31); +#else + QT3DSU32 testBit = (1 << 31); +#endif + while ((v & testBit) == 0 && testBit != 0) + result++, testBit >>= 1; + return result; + } + + /*! + Sets \c count bytes starting at \c dst to zero. + */ + QT3DS_FORCE_INLINE void *memZero(void *QT3DS_RESTRICT dest, QT3DSU32 count) + { + return memset(dest, 0, count); + } + + /*! + Sets \c count bytes starting at \c dst to \c c. + */ + QT3DS_FORCE_INLINE void *memSet(void *QT3DS_RESTRICT dest, QT3DSI32 c, QT3DSU32 count) + { + return memset(dest, c, count); + } + + /*! + Copies \c count bytes from \c src to \c dst. User memMove if regions overlap. + */ + QT3DS_FORCE_INLINE void *memCopy(void *QT3DS_RESTRICT dest, const void *QT3DS_RESTRICT src, QT3DSU32 count) + { + return memcpy(dest, src, count); + } + + /*! + Copies \c count bytes from \c src to \c dst. Supports overlapping regions. + */ + QT3DS_FORCE_INLINE void *memMove(void *QT3DS_RESTRICT dest, const void *QT3DS_RESTRICT src, QT3DSU32 count) + { + return memmove(dest, src, count); + } + + /*! + Set 128B to zero starting at \c dst+offset. Must be aligned. + */ + QT3DS_FORCE_INLINE void memZero128(void *QT3DS_RESTRICT dest, QT3DSU32 offset = 0) + { + QT3DS_ASSERT(((size_t(dest) + offset) & 0x7f) == 0); + memSet((char *QT3DS_RESTRICT)dest + offset, 0, 128); + } + + /*! + Prefetch aligned 128B around \c ptr+offset. + */ + QT3DS_FORCE_INLINE void prefetch128(const void *, QT3DSU32 = 0) {} + + /*! + Prefetch \c count bytes starting at \c ptr. + */ + QT3DS_FORCE_INLINE void prefetch(const void *ptr, QT3DSU32 count = 0) + { + for (QT3DSU32 i = 0; i <= count; i += 128) + prefetch128(ptr, i); + } + + //! \brief platform-specific floor + QT3DS_FORCE_INLINE float floatFloor(float x) { return ::floorf(x); } +} // namespace intrinsics +} // namespace qt3ds + +#endif -- cgit v1.2.3