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// Copyright (C) 2024 Loongson Technology Corporation Limited.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qimagescale_p.h"
#include "qimage.h"
#include <private/qdrawhelper_loongarch64_p.h>
#include <private/qsimd_p.h>
#if defined(QT_COMPILER_SUPPORTS_LSX)
QT_BEGIN_NAMESPACE
using namespace QImageScale;
inline static __m128i Q_DECL_VECTORCALL
qt_qimageScaleAARGBA_helper(const unsigned int *pix, int xyap, int Cxy,
int step, const __m128i vxyap, const __m128i vCxy)
{
const __m128i shuffleMask = (__m128i)(v16i8){0, 16, 16, 16, 1, 16, 16, 16,
2, 16, 16, 16, 3, 16, 16, 16};
__m128i vpix = __lsx_vshuf_b(__lsx_vldi(0), __lsx_vreplgr2vr_w(*pix), shuffleMask);
__m128i vx = __lsx_vmul_w(vpix, vxyap);
int i;
for (i = (1 << 14) - xyap; i > Cxy; i -= Cxy) {
pix += step;
vpix = __lsx_vshuf_b(__lsx_vldi(0), __lsx_vreplgr2vr_w(*pix), shuffleMask);
vx = __lsx_vadd_w(vx, __lsx_vmul_w(vpix, vCxy));
}
pix += step;
vpix = __lsx_vshuf_b(__lsx_vldi(0), __lsx_vreplgr2vr_w(*pix), shuffleMask);
vx = __lsx_vadd_w(vx, __lsx_vmul_w(vpix, __lsx_vreplgr2vr_w(i)));
return vx;
}
template<bool RGB>
void qt_qimageScaleAARGBA_up_x_down_y_lsx(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow)
{
const unsigned int **ypoints = isi->ypoints;
const int *xpoints = isi->xpoints;
const int *xapoints = isi->xapoints;
const int *yapoints = isi->yapoints;
const __m128i v256 = __lsx_vreplgr2vr_w(256);
/* go through every scanline in the output buffer */
auto scaleSection = [&] (int yStart, int yEnd) {
for (int y = yStart; y < yEnd; ++y) {
const int Cy = yapoints[y] >> 16;
const int yap = yapoints[y] & 0xffff;
const __m128i vCy = __lsx_vreplgr2vr_w(Cy);
const __m128i vyap = __lsx_vreplgr2vr_w(yap);
unsigned int *dptr = dest + (y * dow);
for (int x = 0; x < dw; x++) {
const unsigned int *sptr = ypoints[y] + xpoints[x];
__m128i vx = qt_qimageScaleAARGBA_helper(sptr, yap, Cy, sow, vyap, vCy);
const int xap = xapoints[x];
if (xap > 0) {
const __m128i vxap = __lsx_vreplgr2vr_w(xap);
const __m128i vinvxap = __lsx_vsub_w(v256, vxap);
__m128i vr = qt_qimageScaleAARGBA_helper(sptr + 1, yap, Cy, sow, vyap, vCy);
vx = __lsx_vmul_w(vx, vinvxap);
vr = __lsx_vmul_w(vr, vxap);
vx = __lsx_vadd_w(vx, vr);
vx = __lsx_vsrli_w(vx, 8);
}
vx = __lsx_vsrli_w(vx, 14);
vx = __lsx_vpickev_h(__lsx_vsat_wu(vx, 15), __lsx_vsat_wu(vx, 15));
vx = __lsx_vpickev_b(__lsx_vsat_hu(vx, 7), __lsx_vsat_hu(vx, 7));
*dptr = __lsx_vpickve2gr_w(vx, 0);
if (RGB)
*dptr |= 0xff000000;
dptr++;
}
}
};
multithread_pixels_function(isi, dh, scaleSection);
}
template<bool RGB>
void qt_qimageScaleAARGBA_down_x_up_y_lsx(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow)
{
const unsigned int **ypoints = isi->ypoints;
int *xpoints = isi->xpoints;
int *xapoints = isi->xapoints;
int *yapoints = isi->yapoints;
const __m128i v256 = __lsx_vreplgr2vr_w(256);
/* go through every scanline in the output buffer */
auto scaleSection = [&] (int yStart, int yEnd) {
for (int y = yStart; y < yEnd; ++y) {
unsigned int *dptr = dest + (y * dow);
for (int x = 0; x < dw; x++) {
int Cx = xapoints[x] >> 16;
int xap = xapoints[x] & 0xffff;
const __m128i vCx = __lsx_vreplgr2vr_w(Cx);
const __m128i vxap = __lsx_vreplgr2vr_w(xap);
const unsigned int *sptr = ypoints[y] + xpoints[x];
__m128i vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1, vxap, vCx);
int yap = yapoints[y];
if (yap > 0) {
const __m128i vyap = __lsx_vreplgr2vr_w(yap);
const __m128i vinvyap = __lsx_vsub_w(v256, vyap);
__m128i vr = qt_qimageScaleAARGBA_helper(sptr + sow, xap, Cx, 1, vxap, vCx);
vx = __lsx_vmul_w(vx, vinvyap);
vr = __lsx_vmul_w(vr, vyap);
vx = __lsx_vadd_w(vx, vr);
vx = __lsx_vsrli_w(vx, 8);
}
vx = __lsx_vsrli_w(vx, 14);
vx = __lsx_vpickev_h(__lsx_vsat_wu(vx, 15), __lsx_vsat_wu(vx, 15));
vx = __lsx_vpickev_b(__lsx_vsat_wu(vx, 7), __lsx_vsat_hu(vx, 7));
*dptr = __lsx_vpickve2gr_w(vx, 0);
if (RGB)
*dptr |= 0xff000000;
dptr++;
}
}
};
multithread_pixels_function(isi, dh, scaleSection);
}
template<bool RGB>
void qt_qimageScaleAARGBA_down_xy_lsx(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow)
{
const unsigned int **ypoints = isi->ypoints;
int *xpoints = isi->xpoints;
int *xapoints = isi->xapoints;
int *yapoints = isi->yapoints;
auto scaleSection = [&] (int yStart, int yEnd) {
for (int y = yStart; y < yEnd; ++y) {
int Cy = yapoints[y] >> 16;
int yap = yapoints[y] & 0xffff;
const __m128i vCy = __lsx_vreplgr2vr_w(Cy);
const __m128i vyap = __lsx_vreplgr2vr_w(yap);
unsigned int *dptr = dest + (y * dow);
for (int x = 0; x < dw; x++) {
const int Cx = xapoints[x] >> 16;
const int xap = xapoints[x] & 0xffff;
const __m128i vCx = __lsx_vreplgr2vr_w(Cx);
const __m128i vxap = __lsx_vreplgr2vr_w(xap);
const unsigned int *sptr = ypoints[y] + xpoints[x];
__m128i vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1, vxap, vCx);
__m128i vr = __lsx_vmul_w(__lsx_vsrli_w(vx, 4), vyap);
int j;
for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
sptr += sow;
vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1, vxap, vCx);
vr = __lsx_vadd_w(vr, __lsx_vmul_w(__lsx_vsrli_w(vx, 4), vCy));
}
sptr += sow;
vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1, vxap, vCx);
vr = __lsx_vadd_w(vr, __lsx_vmul_w(__lsx_vsrli_w(vx, 4), __lsx_vreplgr2vr_w(j)));
vr = __lsx_vsrli_w(vr, 24);
vr = __lsx_vpickev_h(__lsx_vldi(0), __lsx_vsat_wu(vr, 15));
vr = __lsx_vpickev_b(__lsx_vldi(0), __lsx_vsat_hu(vr, 7));
*dptr = __lsx_vpickve2gr_w(vr, 0);
if (RGB)
*dptr |= 0xff000000;
dptr++;
}
}
};
multithread_pixels_function(isi, dh, scaleSection);
}
template void qt_qimageScaleAARGBA_up_x_down_y_lsx<false>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
template void qt_qimageScaleAARGBA_up_x_down_y_lsx<true>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
template void qt_qimageScaleAARGBA_down_x_up_y_lsx<false>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
template void qt_qimageScaleAARGBA_down_x_up_y_lsx<true>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
template void qt_qimageScaleAARGBA_down_xy_lsx<false>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
template void qt_qimageScaleAARGBA_down_xy_lsx<true>(QImageScaleInfo *isi, unsigned int *dest,
int dw, int dh, int dow, int sow);
QT_END_NAMESPACE
#endif