Matrix.h revision bd3055f95e67a55648fd84a125e939293115171b
108ae317c21ec3086b5017672bba87420cc38a407Romain Guy/* 208ae317c21ec3086b5017672bba87420cc38a407Romain Guy * Copyright (C) 2010 The Android Open Source Project 308ae317c21ec3086b5017672bba87420cc38a407Romain Guy * 408ae317c21ec3086b5017672bba87420cc38a407Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 508ae317c21ec3086b5017672bba87420cc38a407Romain Guy * you may not use this file except in compliance with the License. 608ae317c21ec3086b5017672bba87420cc38a407Romain Guy * You may obtain a copy of the License at 708ae317c21ec3086b5017672bba87420cc38a407Romain Guy * 808ae317c21ec3086b5017672bba87420cc38a407Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 908ae317c21ec3086b5017672bba87420cc38a407Romain Guy * 1008ae317c21ec3086b5017672bba87420cc38a407Romain Guy * Unless required by applicable law or agreed to in writing, software 1108ae317c21ec3086b5017672bba87420cc38a407Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 1208ae317c21ec3086b5017672bba87420cc38a407Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1308ae317c21ec3086b5017672bba87420cc38a407Romain Guy * See the License for the specific language governing permissions and 1408ae317c21ec3086b5017672bba87420cc38a407Romain Guy * limitations under the License. 1508ae317c21ec3086b5017672bba87420cc38a407Romain Guy */ 1608ae317c21ec3086b5017672bba87420cc38a407Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_MATRIX_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_MATRIX_H 1908ae317c21ec3086b5017672bba87420cc38a407Romain Guy 20f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy#include <SkMatrix.h> 21f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 2271e36aa7db69449e210d0791284cb810a7471c07Romain Guy#include <cutils/compiler.h> 2371e36aa7db69449e210d0791284cb810a7471c07Romain Guy 249d5316e3f56d138504565ff311145ac01621dff4Romain Guy#include "Rect.h" 259d5316e3f56d138504565ff311145ac01621dff4Romain Guy 2608ae317c21ec3086b5017672bba87420cc38a407Romain Guynamespace android { 279d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 2808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 2908ae317c21ec3086b5017672bba87420cc38a407Romain Guy/////////////////////////////////////////////////////////////////////////////// 3008ae317c21ec3086b5017672bba87420cc38a407Romain Guy// Classes 3108ae317c21ec3086b5017672bba87420cc38a407Romain Guy/////////////////////////////////////////////////////////////////////////////// 3208ae317c21ec3086b5017672bba87420cc38a407Romain Guy 3371e36aa7db69449e210d0791284cb810a7471c07Romain Guyclass ANDROID_API Matrix4 { 3408ae317c21ec3086b5017672bba87420cc38a407Romain Guypublic: 357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float data[16]; 36c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 37af28b514964861d81b48902f942f706050936d38Romain Guy enum Entry { 38af28b514964861d81b48902f942f706050936d38Romain Guy kScaleX = 0, 39af28b514964861d81b48902f942f706050936d38Romain Guy kSkewY = 1, 40af28b514964861d81b48902f942f706050936d38Romain Guy kPerspective0 = 3, 41af28b514964861d81b48902f942f706050936d38Romain Guy kSkewX = 4, 42af28b514964861d81b48902f942f706050936d38Romain Guy kScaleY = 5, 43af28b514964861d81b48902f942f706050936d38Romain Guy kPerspective1 = 7, 44af28b514964861d81b48902f942f706050936d38Romain Guy kScaleZ = 10, 45af28b514964861d81b48902f942f706050936d38Romain Guy kTranslateX = 12, 46af28b514964861d81b48902f942f706050936d38Romain Guy kTranslateY = 13, 47af28b514964861d81b48902f942f706050936d38Romain Guy kTranslateZ = 14, 48af28b514964861d81b48902f942f706050936d38Romain Guy kPerspective2 = 15 49af28b514964861d81b48902f942f706050936d38Romain Guy }; 50af28b514964861d81b48902f942f706050936d38Romain Guy 518ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // NOTE: The flags from kTypeIdentity to kTypePerspective 528ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // must be kept in sync with the type flags found 538ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // in SkMatrix 548ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy enum Type { 558ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeIdentity = 0, 568ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeTranslate = 0x1, 578ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeScale = 0x2, 588ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeAffine = 0x4, 598ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypePerspective = 0x8, 608ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeRectToRect = 0x10, 618ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy kTypeUnknown = 0x20, 628ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy }; 638ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 648ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy static const int sGeometryMask = 0xf; 658ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 667ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4() { 677ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy loadIdentity(); 687ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 6908ae317c21ec3086b5017672bba87420cc38a407Romain Guy 707ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4(const float* v) { 717ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy load(v); 727ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 7308ae317c21ec3086b5017672bba87420cc38a407Romain Guy 747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4(const Matrix4& v) { 757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy load(v); 767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 7708ae317c21ec3086b5017672bba87420cc38a407Romain Guy 787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4(const SkMatrix& v) { 797ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy load(v); 807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 81f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 823b753829ae858d424fe109f714745379a6daf455Romain Guy float operator[](int index) const { 833b753829ae858d424fe109f714745379a6daf455Romain Guy return data[index]; 843b753829ae858d424fe109f714745379a6daf455Romain Guy } 853b753829ae858d424fe109f714745379a6daf455Romain Guy 863b753829ae858d424fe109f714745379a6daf455Romain Guy float& operator[](int index) { 873b753829ae858d424fe109f714745379a6daf455Romain Guy mType = kTypeUnknown; 883b753829ae858d424fe109f714745379a6daf455Romain Guy return data[index]; 893b753829ae858d424fe109f714745379a6daf455Romain Guy } 903b753829ae858d424fe109f714745379a6daf455Romain Guy 913b753829ae858d424fe109f714745379a6daf455Romain Guy Matrix4& operator=(const SkMatrix& v) { 923b753829ae858d424fe109f714745379a6daf455Romain Guy load(v); 933b753829ae858d424fe109f714745379a6daf455Romain Guy return *this; 943b753829ae858d424fe109f714745379a6daf455Romain Guy } 953b753829ae858d424fe109f714745379a6daf455Romain Guy 96bd3055f95e67a55648fd84a125e939293115171bRomain Guy friend bool operator==(const Matrix4& a, const Matrix4& b) { 97bd3055f95e67a55648fd84a125e939293115171bRomain Guy return !memcmp(&a.data[0], &b.data[0], 16 * sizeof(float)); 98bd3055f95e67a55648fd84a125e939293115171bRomain Guy } 99bd3055f95e67a55648fd84a125e939293115171bRomain Guy 100bd3055f95e67a55648fd84a125e939293115171bRomain Guy friend bool operator!=(const Matrix4& a, const Matrix4& b) { 101bd3055f95e67a55648fd84a125e939293115171bRomain Guy return !(a == b); 102bd3055f95e67a55648fd84a125e939293115171bRomain Guy } 103bd3055f95e67a55648fd84a125e939293115171bRomain Guy 1047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadIdentity(); 10508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void load(const float* v); 1077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void load(const Matrix4& v); 1087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void load(const SkMatrix& v); 10908ae317c21ec3086b5017672bba87420cc38a407Romain Guy 110079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy void loadInverse(const Matrix4& v); 111079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy 1127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadTranslate(float x, float y, float z); 1137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadScale(float sx, float sy, float sz); 114807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy void loadSkew(float sx, float sy); 1158ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy void loadRotate(float angle); 1167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadRotate(float angle, float x, float y, float z); 1177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadMultiply(const Matrix4& u, const Matrix4& v); 11808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void loadOrtho(float left, float right, float bottom, float top, float near, float far); 12008ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1218ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy uint32_t getType() const; 1228ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 1237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void multiply(const Matrix4& v) { 1247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4 u; 1257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy u.loadMultiply(*this, v); 1267ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy load(u); 1277ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 12808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 129ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy void multiply(float v); 130ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 1317ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void translate(float x, float y, float z) { 1327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4 u; 1337ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy u.loadTranslate(x, y, z); 1347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy multiply(u); 1357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 13608ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1377ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void scale(float sx, float sy, float sz) { 1387ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4 u; 1397ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy u.loadScale(sx, sy, sz); 1407ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy multiply(u); 1417ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 14208ae317c21ec3086b5017672bba87420cc38a407Romain Guy 143807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy void skew(float sx, float sy) { 144807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy Matrix4 u; 145807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy u.loadSkew(sx, sy); 146807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy multiply(u); 147807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy } 148807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 1497ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void rotate(float angle, float x, float y, float z) { 1507ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy Matrix4 u; 1517ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy u.loadRotate(angle, x, y, z); 1527ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy multiply(u); 1537ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 15408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1558ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy /** 1568ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy * If the matrix is identity or translate and/or scale. 1578ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy */ 158710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik bool isSimple() const; 1598ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy bool isPureTranslate() const; 160710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik bool isIdentity() const; 161a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy bool isPerspective() const; 1628ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy bool rectToRect() const; 1636620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 164710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craik bool changesBounds() const; 165e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 1667ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void copyTo(float* v) const; 1677ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void copyTo(SkMatrix& v) const; 16808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1697ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void mapRect(Rect& r) const; 1700ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy void mapPoint(float& x, float& y) const; 1719d5316e3f56d138504565ff311145ac01621dff4Romain Guy 172624234f69b2a4781d24f3e4c6ae6450729e38397Romain Guy float getTranslateX() const; 173624234f69b2a4781d24f3e4c6ae6450729e38397Romain Guy float getTranslateY() const; 174bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1753b753829ae858d424fe109f714745379a6daf455Romain Guy void decomposeScale(float& sx, float& sy) const; 1763b753829ae858d424fe109f714745379a6daf455Romain Guy 1777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy void dump() const; 17808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 179c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy static const Matrix4& identity(); 180c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy 181f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyprivate: 1828ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mutable uint32_t mType; 183af28b514964861d81b48902f942f706050936d38Romain Guy 18408ae317c21ec3086b5017672bba87420cc38a407Romain Guy inline float get(int i, int j) const { 185c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return data[i * 4 + j]; 18608ae317c21ec3086b5017672bba87420cc38a407Romain Guy } 18708ae317c21ec3086b5017672bba87420cc38a407Romain Guy 18808ae317c21ec3086b5017672bba87420cc38a407Romain Guy inline void set(int i, int j, float v) { 1897ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy data[i * 4 + j] = v; 19008ae317c21ec3086b5017672bba87420cc38a407Romain Guy } 1918ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 1928ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy uint32_t getGeometryType() const; 1938ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 19408ae317c21ec3086b5017672bba87420cc38a407Romain Guy}; // class Matrix4 19508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 19608ae317c21ec3086b5017672bba87420cc38a407Romain Guy/////////////////////////////////////////////////////////////////////////////// 19708ae317c21ec3086b5017672bba87420cc38a407Romain Guy// Types 19808ae317c21ec3086b5017672bba87420cc38a407Romain Guy/////////////////////////////////////////////////////////////////////////////// 19908ae317c21ec3086b5017672bba87420cc38a407Romain Guy 20008ae317c21ec3086b5017672bba87420cc38a407Romain Guytypedef Matrix4 mat4; 20108ae317c21ec3086b5017672bba87420cc38a407Romain Guy 2029d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 20308ae317c21ec3086b5017672bba87420cc38a407Romain Guy}; // namespace android 20408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 2055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_MATRIX_H 206