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Diffstat (limited to 'src/gui/painting/qcolorprofile_p.h')
| -rw-r--r-- | src/gui/painting/qcolorprofile_p.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/src/gui/painting/qcolorprofile_p.h b/src/gui/painting/qcolorprofile_p.h deleted file mode 100644 index 425e9abace..0000000000 --- a/src/gui/painting/qcolorprofile_p.h +++ /dev/null @@ -1,245 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or 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.GPL2 and 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-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QCOLORPROFILE_P_H -#define QCOLORPROFILE_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtGui/private/qtguiglobal_p.h> -#include <QtGui/qrgb.h> -#include <QtGui/qrgba64.h> - -#if defined(__SSE2__) -#include <emmintrin.h> -#elif defined(__ARM_NEON__) || defined(__ARM_NEON) -#include <arm_neon.h> -#endif -QT_BEGIN_NAMESPACE - -class Q_GUI_EXPORT QColorProfile -{ -public: - static QColorProfile *fromGamma(qreal gamma); - static QColorProfile *fromSRgb(); - - // The following methods all convert opaque or unpremultiplied colors: - - QRgba64 toLinear64(QRgb rgb32) const - { -#if defined(__SSE2__) - __m128i v = _mm_cvtsi32_si128(rgb32); - v = _mm_unpacklo_epi8(v, _mm_setzero_si128()); - const __m128i vidx = _mm_slli_epi16(v, 4); - const int ridx = _mm_extract_epi16(vidx, 2); - const int gidx = _mm_extract_epi16(vidx, 1); - const int bidx = _mm_extract_epi16(vidx, 0); - v = _mm_slli_epi16(v, 8); // a * 256 - v = _mm_insert_epi16(v, m_toLinear[ridx], 0); - v = _mm_insert_epi16(v, m_toLinear[gidx], 1); - v = _mm_insert_epi16(v, m_toLinear[bidx], 2); - v = _mm_add_epi16(v, _mm_srli_epi16(v, 8)); - QRgba64 rgba64; - _mm_storel_epi64(reinterpret_cast<__m128i *>(&rgba64), v); - return rgba64; -#elif (defined(__ARM_NEON__) || defined(__ARM_NEON)) && Q_BYTE_ORDER == Q_LITTLE_ENDIAN - uint8x8_t v8 = vreinterpret_u8_u32(vmov_n_u32(rgb32)); - uint16x4_t v16 = vget_low_u16(vmovl_u8(v8)); - const uint16x4_t vidx = vshl_n_u16(v16, 4); - const int ridx = vget_lane_u16(vidx, 2); - const int gidx = vget_lane_u16(vidx, 1); - const int bidx = vget_lane_u16(vidx, 0); - v16 = vshl_n_u16(v16, 8); // a * 256 - v16 = vset_lane_u16(m_toLinear[ridx], v16, 0); - v16 = vset_lane_u16(m_toLinear[gidx], v16, 1); - v16 = vset_lane_u16(m_toLinear[bidx], v16, 2); - v16 = vadd_u16(v16, vshr_n_u16(v16, 8)); - return QRgba64::fromRgba64(vget_lane_u64(vreinterpret_u64_u16(v16), 0)); -#else - uint r = m_toLinear[qRed(rgb32) << 4]; - uint g = m_toLinear[qGreen(rgb32) << 4]; - uint b = m_toLinear[qBlue(rgb32) << 4]; - r = r + (r >> 8); - g = g + (g >> 8); - b = b + (b >> 8); - return QRgba64::fromRgba64(r, g, b, qAlpha(rgb32) * 257); -#endif - } - - QRgb toLinear(QRgb rgb32) const - { - return convertWithTable(rgb32, m_toLinear); - } - - QRgba64 toLinear(QRgba64 rgb64) const - { - return convertWithTable(rgb64, m_toLinear); - } - - QRgb fromLinear64(QRgba64 rgb64) const - { -#if defined(__SSE2__) - __m128i v = _mm_loadl_epi64(reinterpret_cast<const __m128i *>(&rgb64)); - v = _mm_sub_epi16(v, _mm_srli_epi16(v, 8)); - const __m128i vidx = _mm_srli_epi16(v, 4); - const int ridx = _mm_extract_epi16(vidx, 0); - const int gidx = _mm_extract_epi16(vidx, 1); - const int bidx = _mm_extract_epi16(vidx, 2); - v = _mm_insert_epi16(v, m_fromLinear[ridx], 2); - v = _mm_insert_epi16(v, m_fromLinear[gidx], 1); - v = _mm_insert_epi16(v, m_fromLinear[bidx], 0); - v = _mm_add_epi16(v, _mm_set1_epi16(0x80)); - v = _mm_srli_epi16(v, 8); - v = _mm_packus_epi16(v, v); - return _mm_cvtsi128_si32(v); -#elif (defined(__ARM_NEON__) || defined(__ARM_NEON)) && Q_BYTE_ORDER == Q_LITTLE_ENDIAN - uint16x4_t v = vreinterpret_u16_u64(vmov_n_u64(rgb64)); - v = vsub_u16(v, vshr_n_u16(v, 8)); - const uint16x4_t vidx = vshr_n_u16(v, 4); - const int ridx = vget_lane_u16(vidx, 0); - const int gidx = vget_lane_u16(vidx, 1); - const int bidx = vget_lane_u16(vidx, 2); - v = vset_lane_u16(m_fromLinear[ridx], v, 2); - v = vset_lane_u16(m_fromLinear[gidx], v, 1); - v = vset_lane_u16(m_fromLinear[bidx], v, 0); - uint8x8_t v8 = vrshrn_n_u16(vcombine_u16(v, v), 8); - return vget_lane_u32(vreinterpret_u32_u8(v8), 0); -#else - uint a = rgb64.alpha(); - uint r = rgb64.red(); - uint g = rgb64.green(); - uint b = rgb64.blue(); - a = a - (a >> 8); - r = r - (r >> 8); - g = g - (g >> 8); - b = b - (b >> 8); - a = (a + 0x80) >> 8; - r = (m_fromLinear[r >> 4] + 0x80) >> 8; - g = (m_fromLinear[g >> 4] + 0x80) >> 8; - b = (m_fromLinear[b >> 4] + 0x80) >> 8; - return (a << 24) | (r << 16) | (g << 8) | b; -#endif - } - - QRgb fromLinear(QRgb rgb32) const - { - return convertWithTable(rgb32, m_fromLinear); - } - - QRgba64 fromLinear(QRgba64 rgb64) const - { - return convertWithTable(rgb64, m_fromLinear); - } - -private: - QColorProfile() { } - - Q_ALWAYS_INLINE static QRgb convertWithTable(QRgb rgb32, const ushort *table) - { - const int r = (table[qRed(rgb32) << 4] + 0x80) >> 8; - const int g = (table[qGreen(rgb32) << 4] + 0x80) >> 8; - const int b = (table[qBlue(rgb32) << 4] + 0x80) >> 8; - return (rgb32 & 0xff000000) | (r << 16) | (g << 8) | b; - } - Q_ALWAYS_INLINE static QRgba64 convertWithTable(QRgba64 rgb64, const ushort *table) - { -#if defined(__SSE2__) - __m128i v = _mm_loadl_epi64(reinterpret_cast<const __m128i *>(&rgb64)); - v = _mm_sub_epi16(v, _mm_srli_epi16(v, 8)); - const __m128i vidx = _mm_srli_epi16(v, 4); - const int ridx = _mm_extract_epi16(vidx, 2); - const int gidx = _mm_extract_epi16(vidx, 1); - const int bidx = _mm_extract_epi16(vidx, 0); - v = _mm_insert_epi16(v, table[ridx], 2); - v = _mm_insert_epi16(v, table[gidx], 1); - v = _mm_insert_epi16(v, table[bidx], 0); - v = _mm_add_epi16(v, _mm_srli_epi16(v, 8)); - QRgba64 rgba64; - _mm_storel_epi64(reinterpret_cast<__m128i *>(&rgba64), v); - return rgba64; -#elif (defined(__ARM_NEON__) || defined(__ARM_NEON)) && Q_BYTE_ORDER == Q_LITTLE_ENDIAN - uint16x4_t v = vreinterpret_u16_u64(vmov_n_u64(rgb64)); - v = vsub_u16(v, vshr_n_u16(v, 8)); - const uint16x4_t vidx = vshr_n_u16(v, 4); - const int ridx = vget_lane_u16(vidx, 2); - const int gidx = vget_lane_u16(vidx, 1); - const int bidx = vget_lane_u16(vidx, 0); - v = vset_lane_u16(table[ridx], v, 2); - v = vset_lane_u16(table[gidx], v, 1); - v = vset_lane_u16(table[bidx], v, 0); - v = vadd_u16(v, vshr_n_u16(v, 8)); - return QRgba64::fromRgba64(vget_lane_u64(vreinterpret_u64_u16(v), 0)); -#else - ushort r = rgb64.red(); - ushort g = rgb64.green(); - ushort b = rgb64.blue(); - r = r - (r >> 8); - g = g - (g >> 8); - b = b - (b >> 8); - r = table[r >> 4]; - g = table[g >> 4]; - b = table[b >> 4]; - r = r + (r >> 8); - g = g + (g >> 8); - b = b + (b >> 8); - return QRgba64::fromRgba64(r, g, b, rgb64.alpha()); -#endif - } - - // We translate to 0-65280 (255*256) instead to 0-65535 to make simple - // shifting an accurate conversion. - // We translate from 0-4080 (255*16) for the same speed up, and to keep - // the tables small enough to fit in most inner caches. - ushort m_toLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280] - ushort m_fromLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280] - -}; - -QT_END_NAMESPACE - -#endif // QCOLORPROFILE_P_H |