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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkMatrix_opts_DEFINED
#define SkMatrix_opts_DEFINED
#include "SkMatrix.h"
#include "SkNx.h"
namespace SK_OPTS_NS {
static void matrix_translate(const SkMatrix& m, SkPoint* dst, const SkPoint* src, int count) {
SkASSERT(m.getType() <= SkMatrix::kTranslate_Mask);
if (count > 0) {
SkScalar tx = m.getTranslateX();
SkScalar ty = m.getTranslateY();
if (count & 1) {
dst->fX = src->fX + tx;
dst->fY = src->fY + ty;
src += 1;
dst += 1;
}
Sk4s trans4(tx, ty, tx, ty);
count >>= 1;
if (count & 1) {
(Sk4s::Load(src) + trans4).store(dst);
src += 2;
dst += 2;
}
count >>= 1;
for (int i = 0; i < count; ++i) {
(Sk4s::Load(src+0) + trans4).store(dst+0);
(Sk4s::Load(src+2) + trans4).store(dst+2);
src += 4;
dst += 4;
}
}
}
static void matrix_scale_translate(const SkMatrix& m, SkPoint* dst, const SkPoint* src, int count) {
SkASSERT(m.getType() <= (SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask));
if (count > 0) {
SkScalar tx = m.getTranslateX();
SkScalar ty = m.getTranslateY();
SkScalar sx = m.getScaleX();
SkScalar sy = m.getScaleY();
if (count & 1) {
dst->fX = src->fX * sx + tx;
dst->fY = src->fY * sy + ty;
src += 1;
dst += 1;
}
Sk4s trans4(tx, ty, tx, ty);
Sk4s scale4(sx, sy, sx, sy);
count >>= 1;
if (count & 1) {
(Sk4s::Load(src) * scale4 + trans4).store(dst);
src += 2;
dst += 2;
}
count >>= 1;
for (int i = 0; i < count; ++i) {
(Sk4s::Load(src+0) * scale4 + trans4).store(dst+0);
(Sk4s::Load(src+2) * scale4 + trans4).store(dst+2);
src += 4;
dst += 4;
}
}
}
static void matrix_affine(const SkMatrix& m, SkPoint* dst, const SkPoint* src, int count) {
SkASSERT(m.getType() != SkMatrix::kPerspective_Mask);
if (count > 0) {
SkScalar tx = m.getTranslateX();
SkScalar ty = m.getTranslateY();
SkScalar sx = m.getScaleX();
SkScalar sy = m.getScaleY();
SkScalar kx = m.getSkewX();
SkScalar ky = m.getSkewY();
if (count & 1) {
dst->set(src->fX * sx + src->fY * kx + tx,
src->fX * ky + src->fY * sy + ty);
src += 1;
dst += 1;
}
Sk4s trans4(tx, ty, tx, ty);
Sk4s scale4(sx, sy, sx, sy);
Sk4s skew4(kx, ky, kx, ky); // applied to swizzle of src4
count >>= 1;
for (int i = 0; i < count; ++i) {
Sk4s src4 = Sk4s::Load(src);
Sk4s swz4 = SkNx_shuffle<1,0,3,2>(src4); // y0 x0, y1 x1
(src4 * scale4 + swz4 * skew4 + trans4).store(dst);
src += 2;
dst += 2;
}
}
}
} // namespace SK_OPTS_NS
#endif//SkMatrix_opts_DEFINED
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