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diff --git a/src/gui/painting/qdrawhelper_neon.cpp b/src/gui/painting/qdrawhelper_neon.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <private/qdrawhelper_p.h>
+
+#ifdef QT_HAVE_NEON
+
+#include <private/qdrawhelper_neon_p.h>
+#include <arm_neon.h>
+
+QT_BEGIN_NAMESPACE
+
+static inline int16x8_t qvdiv_255_s16(int16x8_t x, int16x8_t half)
+{
+ // result = (x + (x >> 8) + 0x80) >> 8
+
+ const int16x8_t temp = vshrq_n_s16(x, 8); // x >> 8
+ const int16x8_t sum_part = vaddq_s16(x, half); // x + 0x80
+ const int16x8_t sum = vaddq_s16(temp, sum_part);
+
+ return vreinterpretq_s16_u16(vshrq_n_u16(vreinterpretq_u16_s16(sum), 8));
+}
+
+static inline int16x8_t qvbyte_mul_s16(int16x8_t x, int16x8_t alpha, int16x8_t half)
+{
+ // t = qRound(x * alpha / 255.0)
+
+ const int16x8_t t = vmulq_s16(x, alpha); // t
+ return qvdiv_255_s16(t, half);
+}
+
+static inline int16x8_t qvinterpolate_pixel_255(int16x8_t x, int16x8_t a, int16x8_t y, int16x8_t b, int16x8_t half)
+{
+ // t = x * a + y * b
+
+ const int16x8_t ta = vmulq_s16(x, a);
+ const int16x8_t tb = vmulq_s16(y, b);
+
+ return qvdiv_255_s16(vaddq_s16(ta, tb), half);
+}
+
+static inline int16x8_t qvsource_over_s16(int16x8_t src16, int16x8_t dst16, int16x8_t half, int16x8_t full)
+{
+ const int16x4_t alpha16_high = vdup_lane_s16(vget_high_s16(src16), 3);
+ const int16x4_t alpha16_low = vdup_lane_s16(vget_low_s16(src16), 3);
+
+ const int16x8_t alpha16 = vsubq_s16(full, vcombine_s16(alpha16_low, alpha16_high));
+
+ return vaddq_s16(src16, qvbyte_mul_s16(dst16, alpha16, half));
+}
+
+void qt_blend_argb32_on_argb32_neon(uchar *destPixels, int dbpl,
+ const uchar *srcPixels, int sbpl,
+ int w, int h,
+ int const_alpha)
+{
+ const uint *src = (const uint *) srcPixels;
+ uint *dst = (uint *) destPixels;
+ int16x8_t half = vdupq_n_s16(0x80);
+ int16x8_t full = vdupq_n_s16(0xff);
+ if (const_alpha == 256) {
+ for (int y = 0; y < h; ++y) {
+ int x = 0;
+ for (; x < w-3; x += 4) {
+ int32x4_t src32 = vld1q_s32((int32_t *)&src[x]);
+ if ((src[x] & src[x+1] & src[x+2] & src[x+3]) >= 0xff000000) {
+ // all opaque
+ vst1q_s32((int32_t *)&dst[x], src32);
+ } else if (src[x] | src[x+1] | src[x+2] | src[x+3]) {
+ int32x4_t dst32 = vld1q_s32((int32_t *)&dst[x]);
+
+ const uint8x16_t src8 = vreinterpretq_u8_s32(src32);
+ const uint8x16_t dst8 = vreinterpretq_u8_s32(dst32);
+
+ const uint8x8_t src8_low = vget_low_u8(src8);
+ const uint8x8_t dst8_low = vget_low_u8(dst8);
+
+ const uint8x8_t src8_high = vget_high_u8(src8);
+ const uint8x8_t dst8_high = vget_high_u8(dst8);
+
+ const int16x8_t src16_low = vreinterpretq_s16_u16(vmovl_u8(src8_low));
+ const int16x8_t dst16_low = vreinterpretq_s16_u16(vmovl_u8(dst8_low));
+
+ const int16x8_t src16_high = vreinterpretq_s16_u16(vmovl_u8(src8_high));
+ const int16x8_t dst16_high = vreinterpretq_s16_u16(vmovl_u8(dst8_high));
+
+ const int16x8_t result16_low = qvsource_over_s16(src16_low, dst16_low, half, full);
+ const int16x8_t result16_high = qvsource_over_s16(src16_high, dst16_high, half, full);
+
+ const int32x2_t result32_low = vreinterpret_s32_s8(vmovn_s16(result16_low));
+ const int32x2_t result32_high = vreinterpret_s32_s8(vmovn_s16(result16_high));
+
+ vst1q_s32((int32_t *)&dst[x], vcombine_s32(result32_low, result32_high));
+ }
+ }
+ for (; x<w; ++x) {
+ uint s = src[x];
+ if (s >= 0xff000000)
+ dst[x] = s;
+ else if (s != 0)
+ dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
+ }
+ dst = (quint32 *)(((uchar *) dst) + dbpl);
+ src = (const quint32 *)(((const uchar *) src) + sbpl);
+ }
+ } else if (const_alpha != 0) {
+ const_alpha = (const_alpha * 255) >> 8;
+ int16x8_t const_alpha16 = vdupq_n_s16(const_alpha);
+ for (int y = 0; y < h; ++y) {
+ int x = 0;
+ for (; x < w-3; x += 4) {
+ if (src[x] | src[x+1] | src[x+2] | src[x+3]) {
+ int32x4_t src32 = vld1q_s32((int32_t *)&src[x]);
+ int32x4_t dst32 = vld1q_s32((int32_t *)&dst[x]);
+
+ const uint8x16_t src8 = vreinterpretq_u8_s32(src32);
+ const uint8x16_t dst8 = vreinterpretq_u8_s32(dst32);
+
+ const uint8x8_t src8_low = vget_low_u8(src8);
+ const uint8x8_t dst8_low = vget_low_u8(dst8);
+
+ const uint8x8_t src8_high = vget_high_u8(src8);
+ const uint8x8_t dst8_high = vget_high_u8(dst8);
+
+ const int16x8_t src16_low = vreinterpretq_s16_u16(vmovl_u8(src8_low));
+ const int16x8_t dst16_low = vreinterpretq_s16_u16(vmovl_u8(dst8_low));
+
+ const int16x8_t src16_high = vreinterpretq_s16_u16(vmovl_u8(src8_high));
+ const int16x8_t dst16_high = vreinterpretq_s16_u16(vmovl_u8(dst8_high));
+
+ const int16x8_t srcalpha16_low = qvbyte_mul_s16(src16_low, const_alpha16, half);
+ const int16x8_t srcalpha16_high = qvbyte_mul_s16(src16_high, const_alpha16, half);
+
+ const int16x8_t result16_low = qvsource_over_s16(srcalpha16_low, dst16_low, half, full);
+ const int16x8_t result16_high = qvsource_over_s16(srcalpha16_high, dst16_high, half, full);
+
+ const int32x2_t result32_low = vreinterpret_s32_s8(vmovn_s16(result16_low));
+ const int32x2_t result32_high = vreinterpret_s32_s8(vmovn_s16(result16_high));
+
+ vst1q_s32((int32_t *)&dst[x], vcombine_s32(result32_low, result32_high));
+ }
+ }
+ for (; x<w; ++x) {
+ uint s = src[x];
+ if (s != 0) {
+ s = BYTE_MUL(s, const_alpha);
+ dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
+ }
+ }
+ dst = (quint32 *)(((uchar *) dst) + dbpl);
+ src = (const quint32 *)(((const uchar *) src) + sbpl);
+ }
+ }
+}
+
+// qblendfunctions.cpp
+void qt_blend_rgb32_on_rgb32(uchar *destPixels, int dbpl,
+ const uchar *srcPixels, int sbpl,
+ int w, int h,
+ int const_alpha);
+
+void qt_blend_rgb32_on_rgb32_neon(uchar *destPixels, int dbpl,
+ const uchar *srcPixels, int sbpl,
+ int w, int h,
+ int const_alpha)
+{
+ if (const_alpha != 256) {
+ if (const_alpha != 0) {
+ const uint *src = (const uint *) srcPixels;
+ uint *dst = (uint *) destPixels;
+ int16x8_t half = vdupq_n_s16(0x80);
+ const_alpha = (const_alpha * 255) >> 8;
+ int one_minus_const_alpha = 255 - const_alpha;
+ int16x8_t const_alpha16 = vdupq_n_s16(const_alpha);
+ int16x8_t one_minus_const_alpha16 = vdupq_n_s16(255 - const_alpha);
+ for (int y = 0; y < h; ++y) {
+ int x = 0;
+ for (; x < w-3; x += 4) {
+ int32x4_t src32 = vld1q_s32((int32_t *)&src[x]);
+ int32x4_t dst32 = vld1q_s32((int32_t *)&dst[x]);
+
+ const uint8x16_t src8 = vreinterpretq_u8_s32(src32);
+ const uint8x16_t dst8 = vreinterpretq_u8_s32(dst32);
+
+ const uint8x8_t src8_low = vget_low_u8(src8);
+ const uint8x8_t dst8_low = vget_low_u8(dst8);
+
+ const uint8x8_t src8_high = vget_high_u8(src8);
+ const uint8x8_t dst8_high = vget_high_u8(dst8);
+
+ const int16x8_t src16_low = vreinterpretq_s16_u16(vmovl_u8(src8_low));
+ const int16x8_t dst16_low = vreinterpretq_s16_u16(vmovl_u8(dst8_low));
+
+ const int16x8_t src16_high = vreinterpretq_s16_u16(vmovl_u8(src8_high));
+ const int16x8_t dst16_high = vreinterpretq_s16_u16(vmovl_u8(dst8_high));
+
+ const int16x8_t result16_low = qvinterpolate_pixel_255(src16_low, const_alpha16, dst16_low, one_minus_const_alpha16, half);
+ const int16x8_t result16_high = qvinterpolate_pixel_255(src16_high, const_alpha16, dst16_high, one_minus_const_alpha16, half);
+
+ const int32x2_t result32_low = vreinterpret_s32_s8(vmovn_s16(result16_low));
+ const int32x2_t result32_high = vreinterpret_s32_s8(vmovn_s16(result16_high));
+
+ vst1q_s32((int32_t *)&dst[x], vcombine_s32(result32_low, result32_high));
+ }
+ for (; x<w; ++x) {
+ uint s = src[x];
+ s = BYTE_MUL(s, const_alpha);
+ dst[x] = INTERPOLATE_PIXEL_255(src[x], const_alpha, dst[x], one_minus_const_alpha);
+ }
+ dst = (quint32 *)(((uchar *) dst) + dbpl);
+ src = (const quint32 *)(((const uchar *) src) + sbpl);
+ }
+ }
+ } else {
+ qt_blend_rgb32_on_rgb32(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha);
+ }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_HAVE_NEON
+
generated by cgit v0.12 at 2024-12-04 06:58:57 (GMT)