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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrQuad.h"
GrQuad::GrQuad(const SkRect& rect, const SkMatrix& m) {
SkMatrix::TypeMask tm = m.getType();
if (tm <= (SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask)) {
auto r = Sk4f::Load(&rect);
const Sk4f t(m.getTranslateX(), m.getTranslateY(), m.getTranslateX(), m.getTranslateY());
if (tm <= SkMatrix::kTranslate_Mask) {
r += t;
} else {
const Sk4f s(m.getScaleX(), m.getScaleY(), m.getScaleX(), m.getScaleY());
r = r * s + t;
}
SkNx_shuffle<0, 0, 2, 2>(r).store(fX);
SkNx_shuffle<1, 3, 1, 3>(r).store(fY);
} else {
Sk4f rx(rect.fLeft, rect.fLeft, rect.fRight, rect.fRight);
Sk4f ry(rect.fTop, rect.fBottom, rect.fTop, rect.fBottom);
Sk4f sx(m.getScaleX());
Sk4f kx(m.getSkewX());
Sk4f tx(m.getTranslateX());
Sk4f ky(m.getSkewY());
Sk4f sy(m.getScaleY());
Sk4f ty(m.getTranslateY());
auto x = SkNx_fma(sx, rx, SkNx_fma(kx, ry, tx));
auto y = SkNx_fma(ky, rx, SkNx_fma(sy, ry, ty));
if (m.hasPerspective()) {
Sk4f w0(m.getPerspX());
Sk4f w1(m.getPerspY());
Sk4f w2(m.get(SkMatrix::kMPersp2));
auto iw = SkNx_fma(w0, rx, SkNx_fma(w1, ry, w2)).invert();
x *= iw;
y *= iw;
}
x.store(fX);
y.store(fY);
}
}
GrPerspQuad::GrPerspQuad(const SkRect& rect, const SkMatrix& m) {
SkMatrix::TypeMask tm = m.getType();
if (tm <= (SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask)) {
auto r = Sk4f::Load(&rect);
const Sk4f t(m.getTranslateX(), m.getTranslateY(), m.getTranslateX(), m.getTranslateY());
if (tm <= SkMatrix::kTranslate_Mask) {
r += t;
} else {
const Sk4f s(m.getScaleX(), m.getScaleY(), m.getScaleX(), m.getScaleY());
r = r * s + t;
}
SkNx_shuffle<0, 0, 2, 2>(r).store(fX);
SkNx_shuffle<1, 3, 1, 3>(r).store(fY);
fW[0] = fW[1] = fW[2] = fW[3] = 1.f;
fIW[0] = fIW[1] = fIW[2] = fIW[3] = 1.f;
} else {
Sk4f rx(rect.fLeft, rect.fLeft, rect.fRight, rect.fRight);
Sk4f ry(rect.fTop, rect.fBottom, rect.fTop, rect.fBottom);
Sk4f sx(m.getScaleX());
Sk4f kx(m.getSkewX());
Sk4f tx(m.getTranslateX());
Sk4f ky(m.getSkewY());
Sk4f sy(m.getScaleY());
Sk4f ty(m.getTranslateY());
SkNx_fma(sx, rx, SkNx_fma(kx, ry, tx)).store(fX);
SkNx_fma(ky, rx, SkNx_fma(sy, ry, ty)).store(fY);
if (m.hasPerspective()) {
Sk4f w0(m.getPerspX());
Sk4f w1(m.getPerspY());
Sk4f w2(m.get(SkMatrix::kMPersp2));
auto w = SkNx_fma(w0, rx, SkNx_fma(w1, ry, w2));
w.store(fW);
w.invert().store(fIW);
} else {
fW[0] = fW[1] = fW[2] = fW[3] = 1.f;
fIW[0] = fIW[1] = fIW[2] = fIW[3] = 1.f;
}
}
}
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