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Diffstat (limited to 'libs/surfaceflinger/Transform.cpp')
| -rw-r--r-- | libs/surfaceflinger/Transform.cpp | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/libs/surfaceflinger/Transform.cpp b/libs/surfaceflinger/Transform.cpp deleted file mode 100644 index bec7a64..0000000 --- a/libs/surfaceflinger/Transform.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <ui/Region.h> - -#include <private/pixelflinger/ggl_fixed.h> - -#include "Transform.h" - -// --------------------------------------------------------------------------- - -#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) -#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) - -// --------------------------------------------------------------------------- - -namespace android { - -// --------------------------------------------------------------------------- - -Transform::Transform() - : mType(0) -{ - mTransform.reset(); -} - -Transform::Transform(const Transform& other) - : mTransform(other.mTransform), mType(other.mType) -{ -} - -Transform::~Transform() { -} - -Transform Transform::operator * (const Transform& rhs) const -{ - if (LIKELY(mType == 0)) - return rhs; - - Transform r(*this); - r.mTransform.preConcat(rhs.mTransform); - r.mType |= rhs.mType; - return r; -} - -float Transform::operator [] (int i) const -{ - float r = 0; - switch(i) { - case 0: r = SkScalarToFloat( mTransform[SkMatrix::kMScaleX] ); break; - case 1: r = SkScalarToFloat( mTransform[SkMatrix::kMSkewX] ); break; - case 2: r = SkScalarToFloat( mTransform[SkMatrix::kMSkewY] ); break; - case 3: r = SkScalarToFloat( mTransform[SkMatrix::kMScaleY] ); break; - } - return r; -} - -uint8_t Transform::type() const -{ - if (UNLIKELY(mType & 0x80000000)) { - mType = mTransform.getType(); - } - return uint8_t(mType & 0xFF); -} - -bool Transform::transformed() const { - return type() > SkMatrix::kTranslate_Mask; -} - -int Transform::tx() const { - return SkScalarRound( mTransform[SkMatrix::kMTransX] ); -} - -int Transform::ty() const { - return SkScalarRound( mTransform[SkMatrix::kMTransY] ); -} - -void Transform::reset() { - mTransform.reset(); - mType = 0; -} - -void Transform::set( float xx, float xy, - float yx, float yy) -{ - mTransform.set(SkMatrix::kMScaleX, SkFloatToScalar(xx)); - mTransform.set(SkMatrix::kMSkewX, SkFloatToScalar(xy)); - mTransform.set(SkMatrix::kMSkewY, SkFloatToScalar(yx)); - mTransform.set(SkMatrix::kMScaleY, SkFloatToScalar(yy)); - mType |= 0x80000000; -} - -void Transform::set(int tx, int ty) -{ - if (tx | ty) { - mTransform.set(SkMatrix::kMTransX, SkIntToScalar(tx)); - mTransform.set(SkMatrix::kMTransY, SkIntToScalar(ty)); - mType |= SkMatrix::kTranslate_Mask; - } else { - mTransform.set(SkMatrix::kMTransX, 0); - mTransform.set(SkMatrix::kMTransY, 0); - mType &= ~SkMatrix::kTranslate_Mask; - } -} - -void Transform::transform(GLfixed* point, int x, int y) const -{ - SkPoint s; - mTransform.mapXY(SkIntToScalar(x), SkIntToScalar(y), &s); - point[0] = SkScalarToFixed(s.fX); - point[1] = SkScalarToFixed(s.fY); -} - -Rect Transform::makeBounds(int w, int h) const -{ - Rect r; - SkRect d, s; - s.set(0, 0, SkIntToScalar(w), SkIntToScalar(h)); - mTransform.mapRect(&d, s); - r.left = SkScalarRound( d.fLeft ); - r.top = SkScalarRound( d.fTop ); - r.right = SkScalarRound( d.fRight ); - r.bottom = SkScalarRound( d.fBottom ); - return r; -} - -Rect Transform::transform(const Rect& bounds) const -{ - Rect r; - SkRect d, s; - s.set( SkIntToScalar( bounds.left ), - SkIntToScalar( bounds.top ), - SkIntToScalar( bounds.right ), - SkIntToScalar( bounds.bottom )); - mTransform.mapRect(&d, s); - r.left = SkScalarRound( d.fLeft ); - r.top = SkScalarRound( d.fTop ); - r.right = SkScalarRound( d.fRight ); - r.bottom = SkScalarRound( d.fBottom ); - return r; -} - -Region Transform::transform(const Region& reg) const -{ - Region out; - if (UNLIKELY(transformed())) { - if (LIKELY(preserveRects())) { - Rect r; - Region::iterator iterator(reg); - while (iterator.iterate(&r)) { - out.orSelf(transform(r)); - } - } else { - out.set(transform(reg.bounds())); - } - } else { - out = reg.translate(tx(), ty()); - } - return out; -} - -int32_t Transform::getOrientation() const -{ - uint32_t flags = 0; - if (UNLIKELY(transformed())) { - SkScalar a = mTransform[SkMatrix::kMScaleX]; - SkScalar b = mTransform[SkMatrix::kMSkewX]; - SkScalar c = mTransform[SkMatrix::kMSkewY]; - SkScalar d = mTransform[SkMatrix::kMScaleY]; - if (b==0 && c==0 && a && d) { - if (a<0) flags |= FLIP_H; - if (d<0) flags |= FLIP_V; - } else if (b && c && a==0 && d==0) { - flags |= ROT_90; - if (b>0) flags |= FLIP_H; - if (c<0) flags |= FLIP_V; - } else { - flags = 0x80000000; - } - } - return flags; -} - -bool Transform::preserveRects() const -{ - return mTransform.rectStaysRect(); -} - -// --------------------------------------------------------------------------- - -}; // namespace android |