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Diffstat (limited to 'skia/include/SkCamera.h')
| -rw-r--r-- | skia/include/SkCamera.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/skia/include/SkCamera.h b/skia/include/SkCamera.h deleted file mode 100644 index 8bbcabf..0000000 --- a/skia/include/SkCamera.h +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (C) 2006 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. - */ - - - -// Inspired by Rob Johnson's most excellent QuickDraw GX sample code - -#ifndef SkCamera_DEFINED -#define SkCamera_DEFINED - -#include "Sk64.h" -#include "SkMatrix.h" - -class SkCanvas; - -#ifdef SK_SCALAR_IS_FIXED - typedef SkFract SkUnitScalar; - #define SK_UnitScalar1 SK_Fract1 - #define SkUnitScalarMul(a, b) SkFractMul(a, b) - #define SkUnitScalarDiv(a, b) SkFractDiv(a, b) -#else - typedef float SkUnitScalar; - #define SK_UnitScalar1 SK_Scalar1 - #define SkUnitScalarMul(a, b) SkScalarMul(a, b) - #define SkUnitScalarDiv(a, b) SkScalarDiv(a, b) -#endif - -struct SkUnit3D { - SkUnitScalar fX, fY, fZ; - - void set(SkUnitScalar x, SkUnitScalar y, SkUnitScalar z) - { - fX = x; fY = y; fZ = z; - } - static SkUnitScalar Dot(const SkUnit3D&, const SkUnit3D&); - static void Cross(const SkUnit3D&, const SkUnit3D&, SkUnit3D* cross); -}; - -struct SkPoint3D { - SkScalar fX, fY, fZ; - - void set(SkScalar x, SkScalar y, SkScalar z) - { - fX = x; fY = y; fZ = z; - } - SkScalar normalize(SkUnit3D*) const; -}; -typedef SkPoint3D SkVector3D; - -struct SkMatrix3D { - SkScalar fMat[3][4]; - - void reset(); - - void setRow(int row, SkScalar a, SkScalar b, SkScalar c, SkScalar d = 0) - { - SkASSERT((unsigned)row < 3); - fMat[row][0] = a; - fMat[row][1] = b; - fMat[row][2] = c; - fMat[row][3] = d; - } - - void setRotateX(SkScalar deg); - void setRotateY(SkScalar deg); - void setRotateZ(SkScalar deg); - void setTranslate(SkScalar x, SkScalar y, SkScalar z); - - void preRotateX(SkScalar deg); - void preRotateY(SkScalar deg); - void preRotateZ(SkScalar deg); - void preTranslate(SkScalar x, SkScalar y, SkScalar z); - - void setConcat(const SkMatrix3D& a, const SkMatrix3D& b); - void mapPoint(const SkPoint3D& src, SkPoint3D* dst) const; - void mapVector(const SkVector3D& src, SkVector3D* dst) const; - - void mapPoint(SkPoint3D* v) const - { - this->mapPoint(*v, v); - } - void mapVector(SkVector3D* v) const - { - this->mapVector(*v, v); - } -}; - -class SkPatch3D { -public: - SkPatch3D(); - - void reset(); - void transform(const SkMatrix3D&, SkPatch3D* dst = NULL) const; - - // dot a unit vector with the patch's normal - SkScalar dotWith(SkScalar dx, SkScalar dy, SkScalar dz) const; - SkScalar dotWith(const SkVector3D& v) const - { - return this->dotWith(v.fX, v.fY, v.fZ); - } - - // depreicated, but still here for animator (for now) - void rotate(SkScalar x, SkScalar y, SkScalar z) {} - void rotateDegrees(SkScalar x, SkScalar y, SkScalar z) {} - -private: -public: // make public for SkDraw3D for now - SkVector3D fU, fV; - SkPoint3D fOrigin; - - friend class SkCamera3D; -}; - -class SkCamera3D { -public: - SkCamera3D(); - - void reset(); - void update(); - void patchToMatrix(const SkPatch3D&, SkMatrix* matrix) const; - - SkPoint3D fLocation; - SkPoint3D fAxis; - SkPoint3D fZenith; - SkPoint3D fObserver; - -private: - mutable SkMatrix fOrientation; - mutable bool fNeedToUpdate; - - void doUpdate() const; -}; - -class Sk3DView : SkNoncopyable { -public: - Sk3DView(); - ~Sk3DView(); - - void save(); - void restore(); - - void translate(SkScalar x, SkScalar y, SkScalar z); - void rotateX(SkScalar deg); - void rotateY(SkScalar deg); - void rotateZ(SkScalar deg); - - void getMatrix(SkMatrix*) const; - void applyToCanvas(SkCanvas*) const; - - SkScalar dotWithNormal(SkScalar dx, SkScalar dy, SkScalar dz) const; - -private: - struct Rec { - Rec* fNext; - SkMatrix3D fMatrix; - }; - Rec* fRec; - Rec fInitialRec; - SkCamera3D fCamera; -}; - -#endif - |