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Side by Side Diff: src/utils/SkInterpolator.cpp

Issue 1316233002: Style Change: NULL->nullptr (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: 2015-08-27 (Thursday) 10:25:06 EDT Created 5 years, 3 months ago
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1 1
2 /* 2 /*
3 * Copyright 2008 The Android Open Source Project 3 * Copyright 2008 The Android Open Source Project
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #include "SkInterpolator.h" 10 #include "SkInterpolator.h"
11 #include "SkMath.h" 11 #include "SkMath.h"
12 #include "SkTSearch.h" 12 #include "SkTSearch.h"
13 13
14 SkInterpolatorBase::SkInterpolatorBase() { 14 SkInterpolatorBase::SkInterpolatorBase() {
15 fStorage = NULL; 15 fStorage = nullptr;
16 fTimes = NULL; 16 fTimes = nullptr;
17 SkDEBUGCODE(fTimesArray = NULL;) 17 SkDEBUGCODE(fTimesArray = nullptr;)
18 } 18 }
19 19
20 SkInterpolatorBase::~SkInterpolatorBase() { 20 SkInterpolatorBase::~SkInterpolatorBase() {
21 if (fStorage) { 21 if (fStorage) {
22 sk_free(fStorage); 22 sk_free(fStorage);
23 } 23 }
24 } 24 }
25 25
26 void SkInterpolatorBase::reset(int elemCount, int frameCount) { 26 void SkInterpolatorBase::reset(int elemCount, int frameCount) {
27 fFlags = 0; 27 fFlags = 0;
28 fElemCount = SkToU8(elemCount); 28 fElemCount = SkToU8(elemCount);
29 fFrameCount = SkToS16(frameCount); 29 fFrameCount = SkToS16(frameCount);
30 fRepeat = SK_Scalar1; 30 fRepeat = SK_Scalar1;
31 if (fStorage) { 31 if (fStorage) {
32 sk_free(fStorage); 32 sk_free(fStorage);
33 fStorage = NULL; 33 fStorage = nullptr;
34 fTimes = NULL; 34 fTimes = nullptr;
35 SkDEBUGCODE(fTimesArray = NULL); 35 SkDEBUGCODE(fTimesArray = nullptr);
36 } 36 }
37 } 37 }
38 38
39 /* Each value[] run is formated as: 39 /* Each value[] run is formated as:
40 <time (in msec)> 40 <time (in msec)>
41 <blend> 41 <blend>
42 <data[fElemCount]> 42 <data[fElemCount]>
43 43
44 Totaling fElemCount+2 entries per keyframe 44 Totaling fElemCount+2 entries per keyframe
45 */ 45 */
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122 *T = ComputeRelativeT(time, prevT, nextT, nextTime[-1].fBlend); 122 *T = ComputeRelativeT(time, prevT, nextT, nextTime[-1].fBlend);
123 } 123 }
124 *indexPtr = index; 124 *indexPtr = index;
125 *exactPtr = exact; 125 *exactPtr = exact;
126 return result; 126 return result;
127 } 127 }
128 128
129 129
130 SkInterpolator::SkInterpolator() { 130 SkInterpolator::SkInterpolator() {
131 INHERITED::reset(0, 0); 131 INHERITED::reset(0, 0);
132 fValues = NULL; 132 fValues = nullptr;
133 SkDEBUGCODE(fScalarsArray = NULL;) 133 SkDEBUGCODE(fScalarsArray = nullptr;)
134 } 134 }
135 135
136 SkInterpolator::SkInterpolator(int elemCount, int frameCount) { 136 SkInterpolator::SkInterpolator(int elemCount, int frameCount) {
137 SkASSERT(elemCount > 0); 137 SkASSERT(elemCount > 0);
138 this->reset(elemCount, frameCount); 138 this->reset(elemCount, frameCount);
139 } 139 }
140 140
141 void SkInterpolator::reset(int elemCount, int frameCount) { 141 void SkInterpolator::reset(int elemCount, int frameCount) {
142 INHERITED::reset(elemCount, frameCount); 142 INHERITED::reset(elemCount, frameCount);
143 fStorage = sk_malloc_throw((sizeof(SkScalar) * elemCount + 143 fStorage = sk_malloc_throw((sizeof(SkScalar) * elemCount +
144 sizeof(SkTimeCode)) * frameCount); 144 sizeof(SkTimeCode)) * frameCount);
145 fTimes = (SkTimeCode*) fStorage; 145 fTimes = (SkTimeCode*) fStorage;
146 fValues = (SkScalar*) ((char*) fStorage + sizeof(SkTimeCode) * frameCount); 146 fValues = (SkScalar*) ((char*) fStorage + sizeof(SkTimeCode) * frameCount);
147 #ifdef SK_DEBUG 147 #ifdef SK_DEBUG
148 fTimesArray = (SkTimeCode(*)[10]) fTimes; 148 fTimesArray = (SkTimeCode(*)[10]) fTimes;
149 fScalarsArray = (SkScalar(*)[10]) fValues; 149 fScalarsArray = (SkScalar(*)[10]) fValues;
150 #endif 150 #endif
151 } 151 }
152 152
153 #define SK_Fixed1Third (SK_Fixed1/3) 153 #define SK_Fixed1Third (SK_Fixed1/3)
154 #define SK_Fixed2Third (SK_Fixed1*2/3) 154 #define SK_Fixed2Third (SK_Fixed1*2/3)
155 155
156 static const SkScalar gIdentityBlend[4] = { 156 static const SkScalar gIdentityBlend[4] = {
157 0.33333333f, 0.33333333f, 0.66666667f, 0.66666667f 157 0.33333333f, 0.33333333f, 0.66666667f, 0.66666667f
158 }; 158 };
159 159
160 bool SkInterpolator::setKeyFrame(int index, SkMSec time, 160 bool SkInterpolator::setKeyFrame(int index, SkMSec time,
161 const SkScalar values[], const SkScalar blend[4]) { 161 const SkScalar values[], const SkScalar blend[4]) {
162 SkASSERT(values != NULL); 162 SkASSERT(values != nullptr);
163 163
164 if (blend == NULL) { 164 if (blend == nullptr) {
165 blend = gIdentityBlend; 165 blend = gIdentityBlend;
166 } 166 }
167 167
168 bool success = ~index == SkTSearch<SkMSec>(&fTimes->fTime, index, time, 168 bool success = ~index == SkTSearch<SkMSec>(&fTimes->fTime, index, time,
169 sizeof(SkTimeCode)); 169 sizeof(SkTimeCode));
170 SkASSERT(success); 170 SkASSERT(success);
171 if (success) { 171 if (success) {
172 SkTimeCode* timeCode = &fTimes[index]; 172 SkTimeCode* timeCode = &fTimes[index];
173 timeCode->fTime = time; 173 timeCode->fTime = time;
174 memcpy(timeCode->fBlend, blend, sizeof(timeCode->fBlend)); 174 memcpy(timeCode->fBlend, blend, sizeof(timeCode->fBlend));
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261 } 261 }
262 262
263 // Now we have t, so compute the coeff for Y and evaluate 263 // Now we have t, so compute the coeff for Y and evaluate
264 b = pin_and_convert(by); 264 b = pin_and_convert(by);
265 c = pin_and_convert(cy); 265 c = pin_and_convert(cy);
266 A = 3*b; 266 A = 3*b;
267 B = 3*(c - 2*b); 267 B = 3*(c - 2*b);
268 C = 3*(b - c) + Dot14_ONE; 268 C = 3*(b - c) + Dot14_ONE;
269 return SkFixedToScalar(eval_cubic(t, A, B, C) << 2); 269 return SkFixedToScalar(eval_cubic(t, A, B, C) << 2);
270 } 270 }
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