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 175cbbce535744b89df5ecea95de21ee3733298260Romain Guy#define LOG_TAG "OpenGLRenderer" 1808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 1908ae317c21ec3086b5017672bba87420cc38a407Romain Guy#include <math.h> 2008ae317c21ec3086b5017672bba87420cc38a407Romain Guy#include <stdlib.h> 213e168335b3422008908ac6973bb36078fd979f35Romain Guy#include <string.h> 2208ae317c21ec3086b5017672bba87420cc38a407Romain Guy 2308ae317c21ec3086b5017672bba87420cc38a407Romain Guy#include <utils/Log.h> 2408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 25f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy#include <SkMatrix.h> 26f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 2785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "Matrix.h" 2808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 2908ae317c21ec3086b5017672bba87420cc38a407Romain Guynamespace android { 309d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 3108ae317c21ec3086b5017672bba87420cc38a407Romain Guy 328ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy/////////////////////////////////////////////////////////////////////////////// 338ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy// Defines 348ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy/////////////////////////////////////////////////////////////////////////////// 358ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 368ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guystatic const float EPSILON = 0.0000001f; 378ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 388ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy/////////////////////////////////////////////////////////////////////////////// 398ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy// Matrix 408ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy/////////////////////////////////////////////////////////////////////////////// 418ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 42c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guyconst Matrix4& Matrix4::identity() { 43c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy static Matrix4 sIdentity; 44c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy return sIdentity; 45c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy} 46c74f45a334f0e3725c23cdd270cbcb0efac4ea75Romain Guy 4708ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadIdentity() { 48af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = 1.0f; 49af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewY] = 0.0f; 50af28b514964861d81b48902f942f706050936d38Romain Guy data[2] = 0.0f; 51af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective0] = 0.0f; 52af28b514964861d81b48902f942f706050936d38Romain Guy 53af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewX] = 0.0f; 54af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = 1.0f; 55af28b514964861d81b48902f942f706050936d38Romain Guy data[6] = 0.0f; 56af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective1] = 0.0f; 57af28b514964861d81b48902f942f706050936d38Romain Guy 58af28b514964861d81b48902f942f706050936d38Romain Guy data[8] = 0.0f; 59af28b514964861d81b48902f942f706050936d38Romain Guy data[9] = 0.0f; 60af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleZ] = 1.0f; 61af28b514964861d81b48902f942f706050936d38Romain Guy data[11] = 0.0f; 62af28b514964861d81b48902f942f706050936d38Romain Guy 63af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = 0.0f; 64af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = 0.0f; 65af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateZ] = 0.0f; 66af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective2] = 1.0f; 67af28b514964861d81b48902f942f706050936d38Romain Guy 688ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeIdentity | kTypeRectToRect; 698ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy} 708ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 718ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guystatic bool isZero(float f) { 728ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return fabs(f) <= EPSILON; 738ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy} 748ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 75f6bed4f12a2c975678fc0bdea15054ab169aafb5Romain Guyuint8_t Matrix4::getType() const { 768ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (mType & kTypeUnknown) { 778ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeIdentity; 788ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 798ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (data[kPerspective0] != 0.0f || data[kPerspective1] != 0.0f || 808ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy data[kPerspective2] != 1.0f) { 818ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypePerspective; 828ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 838ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 848ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (data[kTranslateX] != 0.0f || data[kTranslateY] != 0.0f) { 858ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypeTranslate; 868ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 878ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 888ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float m00 = data[kScaleX]; 898ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float m01 = data[kSkewX]; 908ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float m10 = data[kSkewY]; 918ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float m11 = data[kScaleY]; 92f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik float m32 = data[kTranslateZ]; 938ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 94f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik if (m01 != 0.0f || m10 != 0.0f || m32 != 0.0f) { 958ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypeAffine; 968ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 978ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 988ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (m00 != 1.0f || m11 != 1.0f) { 998ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypeScale; 1008ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 1018ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 1028ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // The following section determines whether the matrix will preserve 1038ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // rectangles. For instance, a rectangle transformed by a pure 1048ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // translation matrix will result in a rectangle. A rectangle 1058ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // transformed by a 45 degrees rotation matrix is not a rectangle. 1068ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // If the matrix has a perspective component then we already know 1078ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // it doesn't preserve rectangles. 1088ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (!(mType & kTypePerspective)) { 1098ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if ((isZero(m00) && isZero(m11) && !isZero(m01) && !isZero(m10)) || 1108ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy (isZero(m01) && isZero(m10) && !isZero(m00) && !isZero(m11))) { 1118ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypeRectToRect; 1128ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 1138ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 1148ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 1158ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return mType; 1168ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy} 1178ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 118f6bed4f12a2c975678fc0bdea15054ab169aafb5Romain Guyuint8_t Matrix4::getGeometryType() const { 1198ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return getType() & sGeometryMask; 1208ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy} 1218ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 1228ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guybool Matrix4::rectToRect() const { 1238ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return getType() & kTypeRectToRect; 12408ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 12508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 126d965bc5823d878a3fd056b8a95fb4eb578ed3fe4Chris Craikbool Matrix4::positiveScale() const { 127996fe656340ede058a6f0e6b18f9ec525ddb4e27Chris Craik return (data[kScaleX] > 0.0f && data[kScaleY] > 0.0f); 128d965bc5823d878a3fd056b8a95fb4eb578ed3fe4Chris Craik} 129d965bc5823d878a3fd056b8a95fb4eb578ed3fe4Chris Craik 130710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craikbool Matrix4::changesBounds() const { 1318ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return getType() & (kTypeScale | kTypeAffine | kTypePerspective); 132e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy} 133e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 134710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craikbool Matrix4::isPureTranslate() const { 135f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik // NOTE: temporary hack to workaround ignoreTransform behavior with Z values 136f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik // TODO: separate this into isPure2dTranslate vs isPure3dTranslate 137f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik return getGeometryType() <= kTypeTranslate && (data[kTranslateZ] == 0.0f); 1386620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy} 1396620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 140710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craikbool Matrix4::isSimple() const { 141f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik return getGeometryType() <= (kTypeScale | kTypeTranslate) && (data[kTranslateZ] == 0.0f); 142181d0a6ccedee03789919d53c46540a8df751896Romain Guy} 143181d0a6ccedee03789919d53c46540a8df751896Romain Guy 144710f46d9d6a5bf9ea1c1833384caf61e1934124fChris Craikbool Matrix4::isIdentity() const { 1458ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return getGeometryType() == kTypeIdentity; 146302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy} 147302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 148a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guybool Matrix4::isPerspective() const { 1498ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy return getType() & kTypePerspective; 150a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy} 151a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy 15208ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::load(const float* v) { 1537ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy memcpy(data, v, sizeof(data)); 1548ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 15508ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 15608ae317c21ec3086b5017672bba87420cc38a407Romain Guy 15708ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::load(const Matrix4& v) { 1587ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy memcpy(data, v.data, sizeof(data)); 1598ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = v.getType(); 16008ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 16108ae317c21ec3086b5017672bba87420cc38a407Romain Guy 162f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid Matrix4::load(const SkMatrix& v) { 1637ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy memset(data, 0, sizeof(data)); 164f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 165af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = v[SkMatrix::kMScaleX]; 166af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewX] = v[SkMatrix::kMSkewX]; 167af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = v[SkMatrix::kMTransX]; 168f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 169af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewY] = v[SkMatrix::kMSkewY]; 170af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = v[SkMatrix::kMScaleY]; 171af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = v[SkMatrix::kMTransY]; 172f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 173af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective0] = v[SkMatrix::kMPersp0]; 174af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective1] = v[SkMatrix::kMPersp1]; 175af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective2] = v[SkMatrix::kMPersp2]; 176f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 177af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleZ] = 1.0f; 178af28b514964861d81b48902f942f706050936d38Romain Guy 1798ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // NOTE: The flags are compatible between SkMatrix and this class. 1808ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // However, SkMatrix::getType() does not return the flag 1818ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // kRectStaysRect. The return value is masked with 0xF 1828ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy // so we need the extra rectStaysRect() check 1838ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = v.getType(); 1848ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (v.rectStaysRect()) { 1858ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType |= kTypeRectToRect; 1868ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy } 187f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 188f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 189f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid Matrix4::copyTo(SkMatrix& v) const { 1907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy v.reset(); 191f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 192af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMScaleX, data[kScaleX]); 193af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMSkewX, data[kSkewX]); 194af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMTransX, data[kTranslateX]); 195f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 196af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMSkewY, data[kSkewY]); 197af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMScaleY, data[kScaleY]); 198af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMTransY, data[kTranslateY]); 199f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 200af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMPersp0, data[kPerspective0]); 201af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMPersp1, data[kPerspective1]); 202af28b514964861d81b48902f942f706050936d38Romain Guy v.set(SkMatrix::kMPersp2, data[kPerspective2]); 203f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 204f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 205079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guyvoid Matrix4::loadInverse(const Matrix4& v) { 206079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy double scale = 1.0 / 207af28b514964861d81b48902f942f706050936d38Romain Guy (v.data[kScaleX] * ((double) v.data[kScaleY] * v.data[kPerspective2] - 208af28b514964861d81b48902f942f706050936d38Romain Guy (double) v.data[kTranslateY] * v.data[kPerspective1]) + 209af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kSkewX] * ((double) v.data[kTranslateY] * v.data[kPerspective0] - 210af28b514964861d81b48902f942f706050936d38Romain Guy (double) v.data[kSkewY] * v.data[kPerspective2]) + 211af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kTranslateX] * ((double) v.data[kSkewY] * v.data[kPerspective1] - 212af28b514964861d81b48902f942f706050936d38Romain Guy (double) v.data[kScaleY] * v.data[kPerspective0])); 213af28b514964861d81b48902f942f706050936d38Romain Guy 214af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = (v.data[kScaleY] * v.data[kPerspective2] - 215af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kTranslateY] * v.data[kPerspective1]) * scale; 216af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewX] = (v.data[kTranslateX] * v.data[kPerspective1] - 217af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kSkewX] * v.data[kPerspective2]) * scale; 218af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = (v.data[kSkewX] * v.data[kTranslateY] - 219af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kTranslateX] * v.data[kScaleY]) * scale; 220af28b514964861d81b48902f942f706050936d38Romain Guy 221af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewY] = (v.data[kTranslateY] * v.data[kPerspective0] - 222af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kSkewY] * v.data[kPerspective2]) * scale; 223af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = (v.data[kScaleX] * v.data[kPerspective2] - 224af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kTranslateX] * v.data[kPerspective0]) * scale; 225af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = (v.data[kTranslateX] * v.data[kSkewY] - 226af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kScaleX] * v.data[kTranslateY]) * scale; 227af28b514964861d81b48902f942f706050936d38Romain Guy 228af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective0] = (v.data[kSkewY] * v.data[kPerspective1] - 229af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kScaleY] * v.data[kPerspective0]) * scale; 230af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective1] = (v.data[kSkewX] * v.data[kPerspective0] - 231af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kScaleX] * v.data[kPerspective1]) * scale; 232af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective2] = (v.data[kScaleX] * v.data[kScaleY] - 233af28b514964861d81b48902f942f706050936d38Romain Guy v.data[kSkewX] * v.data[kSkewY]) * scale; 234af28b514964861d81b48902f942f706050936d38Romain Guy 2358ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 236079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy} 237079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy 23808ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::copyTo(float* v) const { 2397ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy memcpy(v, data, sizeof(data)); 24008ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 24108ae317c21ec3086b5017672bba87420cc38a407Romain Guy 242624234f69b2a4781d24f3e4c6ae6450729e38397Romain Guyfloat Matrix4::getTranslateX() const { 243af28b514964861d81b48902f942f706050936d38Romain Guy return data[kTranslateX]; 244bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 245bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 246624234f69b2a4781d24f3e4c6ae6450729e38397Romain Guyfloat Matrix4::getTranslateY() const { 247af28b514964861d81b48902f942f706050936d38Romain Guy return data[kTranslateY]; 248bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 249bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 250ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guyvoid Matrix4::multiply(float v) { 251ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy for (int i = 0; i < 16; i++) { 252ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy data[i] *= v; 253ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy } 2548ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 255ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy} 256ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 25708ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadTranslate(float x, float y, float z) { 2587ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy loadIdentity(); 259302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 260af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = x; 261af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = y; 262af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateZ] = z; 263302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 2648ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeTranslate | kTypeRectToRect; 26508ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 26608ae317c21ec3086b5017672bba87420cc38a407Romain Guy 26708ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadScale(float sx, float sy, float sz) { 2687ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy loadIdentity(); 269302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 270af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = sx; 271af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = sy; 272af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleZ] = sz; 273302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 2748ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeScale | kTypeRectToRect; 27508ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 27608ae317c21ec3086b5017672bba87420cc38a407Romain Guy 277807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guyvoid Matrix4::loadSkew(float sx, float sy) { 278807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy loadIdentity(); 279807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 280807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kScaleX] = 1.0f; 281807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kSkewX] = sx; 282807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kTranslateX] = 0.0f; 283807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 284807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kSkewY] = sy; 285807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kScaleY] = 1.0f; 286807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kTranslateY] = 0.0f; 287807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 288807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kPerspective0] = 0.0f; 289807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kPerspective1] = 0.0f; 290807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy data[kPerspective2] = 1.0f; 291807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 2928ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 2938ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy} 2948ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 2958ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guyvoid Matrix4::loadRotate(float angle) { 2968ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy angle *= float(M_PI / 180.0f); 2978ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float c = cosf(angle); 2988ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy float s = sinf(angle); 2998ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 3008ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy loadIdentity(); 3018ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 3028ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy data[kScaleX] = c; 3038ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy data[kSkewX] = -s; 3048ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 3058ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy data[kSkewY] = s; 3068ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy data[kScaleY] = c; 3078ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 3088ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 309807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy} 310807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 31108ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadRotate(float angle, float x, float y, float z) { 312af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective0] = 0.0f; 313af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective1] = 0.0f; 314af28b514964861d81b48902f942f706050936d38Romain Guy data[11] = 0.0f; 315af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = 0.0f; 316af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = 0.0f; 317af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateZ] = 0.0f; 318af28b514964861d81b48902f942f706050936d38Romain Guy data[kPerspective2] = 1.0f; 3197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 3207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy angle *= float(M_PI / 180.0f); 3217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float c = cosf(angle); 3227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float s = sinf(angle); 3237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 3247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float length = sqrtf(x * x + y * y + z * z); 325889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy float recipLen = 1.0f / length; 326889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy x *= recipLen; 327889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy y *= recipLen; 328889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy z *= recipLen; 329889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 3307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float nc = 1.0f - c; 3317ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float xy = x * y; 3327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float yz = y * z; 3337ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float zx = z * x; 3347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float xs = x * s; 3357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float ys = y * s; 3367ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const float zs = z * s; 3377ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 338af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = x * x * nc + c; 339af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewX] = xy * nc - zs; 340af28b514964861d81b48902f942f706050936d38Romain Guy data[8] = zx * nc + ys; 341af28b514964861d81b48902f942f706050936d38Romain Guy data[kSkewY] = xy * nc + zs; 342af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = y * y * nc + c; 343af28b514964861d81b48902f942f706050936d38Romain Guy data[9] = yz * nc - xs; 344af28b514964861d81b48902f942f706050936d38Romain Guy data[2] = zx * nc - ys; 345af28b514964861d81b48902f942f706050936d38Romain Guy data[6] = yz * nc + xs; 346af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleZ] = z * z * nc + c; 347af28b514964861d81b48902f942f706050936d38Romain Guy 3488ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 34908ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 35008ae317c21ec3086b5017672bba87420cc38a407Romain Guy 35108ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadMultiply(const Matrix4& u, const Matrix4& v) { 35208ae317c21ec3086b5017672bba87420cc38a407Romain Guy for (int i = 0 ; i < 4 ; i++) { 35308ae317c21ec3086b5017672bba87420cc38a407Romain Guy float x = 0; 35408ae317c21ec3086b5017672bba87420cc38a407Romain Guy float y = 0; 35508ae317c21ec3086b5017672bba87420cc38a407Romain Guy float z = 0; 35608ae317c21ec3086b5017672bba87420cc38a407Romain Guy float w = 0; 35708ae317c21ec3086b5017672bba87420cc38a407Romain Guy 35808ae317c21ec3086b5017672bba87420cc38a407Romain Guy for (int j = 0 ; j < 4 ; j++) { 359c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const float e = v.get(i, j); 36008ae317c21ec3086b5017672bba87420cc38a407Romain Guy x += u.get(j, 0) * e; 36108ae317c21ec3086b5017672bba87420cc38a407Romain Guy y += u.get(j, 1) * e; 36208ae317c21ec3086b5017672bba87420cc38a407Romain Guy z += u.get(j, 2) * e; 36308ae317c21ec3086b5017672bba87420cc38a407Romain Guy w += u.get(j, 3) * e; 36408ae317c21ec3086b5017672bba87420cc38a407Romain Guy } 36508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 36608ae317c21ec3086b5017672bba87420cc38a407Romain Guy set(i, 0, x); 36708ae317c21ec3086b5017672bba87420cc38a407Romain Guy set(i, 1, y); 36808ae317c21ec3086b5017672bba87420cc38a407Romain Guy set(i, 2, z); 36908ae317c21ec3086b5017672bba87420cc38a407Romain Guy set(i, 3, w); 37008ae317c21ec3086b5017672bba87420cc38a407Romain Guy } 371af28b514964861d81b48902f942f706050936d38Romain Guy 3728ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeUnknown; 37308ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 37408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 37508ae317c21ec3086b5017672bba87420cc38a407Romain Guyvoid Matrix4::loadOrtho(float left, float right, float bottom, float top, float near, float far) { 37608ae317c21ec3086b5017672bba87420cc38a407Romain Guy loadIdentity(); 377302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 378af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleX] = 2.0f / (right - left); 379af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleY] = 2.0f / (top - bottom); 380af28b514964861d81b48902f942f706050936d38Romain Guy data[kScaleZ] = -2.0f / (far - near); 381af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateX] = -(right + left) / (right - left); 382af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateY] = -(top + bottom) / (top - bottom); 383af28b514964861d81b48902f942f706050936d38Romain Guy data[kTranslateZ] = -(far + near) / (far - near); 384302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 3858ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy mType = kTypeTranslate | kTypeScale | kTypeRectToRect; 38608ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 38708ae317c21ec3086b5017672bba87420cc38a407Romain Guy 388b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craikfloat Matrix4::mapZ(const Vector3& orig) const { 389b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craik // duplicates logic for mapPoint3d's z coordinate 390b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craik return orig.x * data[2] + orig.y * data[6] + orig.z * data[kScaleZ] + data[kTranslateZ]; 391b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craik} 392b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craik 393f57776b2d195f0937906eb88b777bb55ccc36967Chris Craikvoid Matrix4::mapPoint3d(Vector3& vec) const { 394f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik //TODO: optimize simple case 395b79a3e301a8d89b9e1b1f6f3d7fd6aa56610a6f0Chris Craik const Vector3 orig(vec); 396f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik vec.x = orig.x * data[kScaleX] + orig.y * data[kSkewX] + orig.z * data[8] + data[kTranslateX]; 397f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik vec.y = orig.x * data[kSkewY] + orig.y * data[kScaleY] + orig.z * data[9] + data[kTranslateY]; 398f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik vec.z = orig.x * data[2] + orig.y * data[6] + orig.z * data[kScaleZ] + data[kTranslateZ]; 399f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik} 400f57776b2d195f0937906eb88b777bb55ccc36967Chris Craik 4010ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy#define MUL_ADD_STORE(a, b, c) a = (a) * (b) + (c) 4020ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy 4030ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guyvoid Matrix4::mapPoint(float& x, float& y) const { 4048ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (isSimple()) { 4050ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy MUL_ADD_STORE(x, data[kScaleX], data[kTranslateX]); 4060ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy MUL_ADD_STORE(y, data[kScaleY], data[kTranslateY]); 4070ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy return; 4080ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy } 4090ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy 4100ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy float dx = x * data[kScaleX] + y * data[kSkewX] + data[kTranslateX]; 4110ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy float dy = x * data[kSkewY] + y * data[kScaleY] + data[kTranslateY]; 4120ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy float dz = x * data[kPerspective0] + y * data[kPerspective1] + data[kPerspective2]; 4130ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy if (dz) dz = 1.0f / dz; 4140ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy 4150ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy x = dx * dz; 4160ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy y = dy * dz; 4170ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy} 4180ba681bce12d522c5575dfccb5a6ca12f0fba746Romain Guy 4199d5316e3f56d138504565ff311145ac01621dff4Romain Guyvoid Matrix4::mapRect(Rect& r) const { 420a447d29c65fb811cd184775a3476101a1cede929John Reck if (isIdentity()) return; 421a447d29c65fb811cd184775a3476101a1cede929John Reck 4228ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy if (isSimple()) { 423af28b514964861d81b48902f942f706050936d38Romain Guy MUL_ADD_STORE(r.left, data[kScaleX], data[kTranslateX]); 424af28b514964861d81b48902f942f706050936d38Romain Guy MUL_ADD_STORE(r.right, data[kScaleX], data[kTranslateX]); 425af28b514964861d81b48902f942f706050936d38Romain Guy MUL_ADD_STORE(r.top, data[kScaleY], data[kTranslateY]); 426af28b514964861d81b48902f942f706050936d38Romain Guy MUL_ADD_STORE(r.bottom, data[kScaleY], data[kTranslateY]); 4275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (r.left > r.right) { 4295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy float x = r.left; 4305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy r.left = r.right; 4315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy r.right = x; 4325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (r.top > r.bottom) { 4355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy float y = r.top; 4365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy r.top = r.bottom; 4375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy r.bottom = y; 4385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 440af28b514964861d81b48902f942f706050936d38Romain Guy return; 441af28b514964861d81b48902f942f706050936d38Romain Guy } 442af28b514964861d81b48902f942f706050936d38Romain Guy 443af28b514964861d81b48902f942f706050936d38Romain Guy float vertices[] = { 4441d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy r.left, r.top, 4451d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy r.right, r.top, 4461d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy r.right, r.bottom, 4471d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy r.left, r.bottom 448af28b514964861d81b48902f942f706050936d38Romain Guy }; 449af28b514964861d81b48902f942f706050936d38Romain Guy 450af28b514964861d81b48902f942f706050936d38Romain Guy float x, y, z; 4519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 452af28b514964861d81b48902f942f706050936d38Romain Guy for (int i = 0; i < 8; i+= 2) { 453af28b514964861d81b48902f942f706050936d38Romain Guy float px = vertices[i]; 454af28b514964861d81b48902f942f706050936d38Romain Guy float py = vertices[i + 1]; 4559d5316e3f56d138504565ff311145ac01621dff4Romain Guy 456af28b514964861d81b48902f942f706050936d38Romain Guy x = px * data[kScaleX] + py * data[kSkewX] + data[kTranslateX]; 457af28b514964861d81b48902f942f706050936d38Romain Guy y = px * data[kSkewY] + py * data[kScaleY] + data[kTranslateY]; 458af28b514964861d81b48902f942f706050936d38Romain Guy z = px * data[kPerspective0] + py * data[kPerspective1] + data[kPerspective2]; 459af28b514964861d81b48902f942f706050936d38Romain Guy if (z) z = 1.0f / z; 460af28b514964861d81b48902f942f706050936d38Romain Guy 461af28b514964861d81b48902f942f706050936d38Romain Guy vertices[i] = x * z; 462af28b514964861d81b48902f942f706050936d38Romain Guy vertices[i + 1] = y * z; 463af28b514964861d81b48902f942f706050936d38Romain Guy } 464af28b514964861d81b48902f942f706050936d38Romain Guy 465af28b514964861d81b48902f942f706050936d38Romain Guy r.left = r.right = vertices[0]; 466af28b514964861d81b48902f942f706050936d38Romain Guy r.top = r.bottom = vertices[1]; 467af28b514964861d81b48902f942f706050936d38Romain Guy 468af28b514964861d81b48902f942f706050936d38Romain Guy for (int i = 2; i < 8; i += 2) { 469af28b514964861d81b48902f942f706050936d38Romain Guy x = vertices[i]; 470af28b514964861d81b48902f942f706050936d38Romain Guy y = vertices[i + 1]; 471af28b514964861d81b48902f942f706050936d38Romain Guy 472af28b514964861d81b48902f942f706050936d38Romain Guy if (x < r.left) r.left = x; 473af28b514964861d81b48902f942f706050936d38Romain Guy else if (x > r.right) r.right = x; 474af28b514964861d81b48902f942f706050936d38Romain Guy if (y < r.top) r.top = y; 475af28b514964861d81b48902f942f706050936d38Romain Guy else if (y > r.bottom) r.bottom = y; 476af28b514964861d81b48902f942f706050936d38Romain Guy } 4779d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4789d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4793b753829ae858d424fe109f714745379a6daf455Romain Guyvoid Matrix4::decomposeScale(float& sx, float& sy) const { 4803b753829ae858d424fe109f714745379a6daf455Romain Guy float len; 4813b753829ae858d424fe109f714745379a6daf455Romain Guy len = data[mat4::kScaleX] * data[mat4::kScaleX] + data[mat4::kSkewX] * data[mat4::kSkewX]; 4823b753829ae858d424fe109f714745379a6daf455Romain Guy sx = copysignf(sqrtf(len), data[mat4::kScaleX]); 4833b753829ae858d424fe109f714745379a6daf455Romain Guy len = data[mat4::kScaleY] * data[mat4::kScaleY] + data[mat4::kSkewY] * data[mat4::kSkewY]; 4843b753829ae858d424fe109f714745379a6daf455Romain Guy sy = copysignf(sqrtf(len), data[mat4::kScaleY]); 4853b753829ae858d424fe109f714745379a6daf455Romain Guy} 4863b753829ae858d424fe109f714745379a6daf455Romain Guy 487e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craikvoid Matrix4::dump(const char* label) const { 488e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craik ALOGD("%s[simple=%d, type=0x%x", label ? label : "Matrix4", isSimple(), getType()); 4895baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD(" %f %f %f %f", data[kScaleX], data[kSkewX], data[8], data[kTranslateX]); 4905baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD(" %f %f %f %f", data[kSkewY], data[kScaleY], data[9], data[kTranslateY]); 4915baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD(" %f %f %f %f", data[2], data[6], data[kScaleZ], data[kTranslateZ]); 4925baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD(" %f %f %f %f", data[kPerspective0], data[kPerspective1], data[11], data[kPerspective2]); 4935baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD("]"); 49408ae317c21ec3086b5017672bba87420cc38a407Romain Guy} 49508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 4969d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 4979d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace android 498