reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2008 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 3 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
herb | b906daf | 2015-09-29 09:37:59 -0700 | [diff] [blame] | 8 | #include "SkAtomics.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | #include "SkBitmap.h" |
| 10 | #include "SkColorPriv.h" |
Matt Sarett | 485c499 | 2017-02-14 14:18:27 -0500 | [diff] [blame] | 11 | #include "SkConvertPixels.h" |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 12 | #include "SkData.h" |
| 13 | #include "SkFilterQuality.h" |
Hal Canary | 4cba3fe | 2016-12-07 14:59:27 -0500 | [diff] [blame] | 14 | #include "SkHalf.h" |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 15 | #include "SkImageInfoPriv.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkMallocPixelRef.h" |
| 17 | #include "SkMask.h" |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 18 | #include "SkMath.h" |
jvanverth | 02802f6 | 2015-07-02 06:42:49 -0700 | [diff] [blame] | 19 | #include "SkPixelRef.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 20 | #include "SkReadBuffer.h" |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 21 | #include "SkRect.h" |
| 22 | #include "SkScalar.h" |
scroggo | 565901d | 2015-12-10 10:44:13 -0800 | [diff] [blame] | 23 | #include "SkTemplates.h" |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 24 | #include "SkUnPreMultiply.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 25 | #include "SkWriteBuffer.h" |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 26 | #include "SkWritePixelsRec.h" |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 27 | |
| 28 | #include <string.h> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 30 | static bool reset_return_false(SkBitmap* bm) { |
| 31 | bm->reset(); |
| 32 | return false; |
| 33 | } |
| 34 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 35 | SkBitmap::SkBitmap() |
| 36 | : fPixelLockCount(0) |
| 37 | , fPixels (nullptr) |
| 38 | , fColorTable (nullptr) |
| 39 | , fPixelRefOrigin{0, 0} |
| 40 | , fRowBytes (0) |
| 41 | , fFlags (0) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 42 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 43 | // copy pixelref, but don't copy lock. |
| 44 | SkBitmap::SkBitmap(const SkBitmap& src) |
| 45 | : fPixelRef (src.fPixelRef) |
| 46 | , fPixelLockCount(0) |
| 47 | , fPixels (nullptr) |
| 48 | , fColorTable (nullptr) |
| 49 | , fPixelRefOrigin(src.fPixelRefOrigin) |
| 50 | , fInfo (src.fInfo) |
| 51 | , fRowBytes (src.fRowBytes) |
| 52 | , fFlags (src.fFlags) |
| 53 | { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | SkDEBUGCODE(src.validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 55 | SkDEBUGCODE(this->validate();) |
| 56 | } |
| 57 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 58 | // take lock and lockcount from other. |
| 59 | SkBitmap::SkBitmap(SkBitmap&& other) |
| 60 | : fPixelRef (std::move(other.fPixelRef)) |
| 61 | , fPixelLockCount (other.fPixelLockCount) |
| 62 | , fPixels (other.fPixels) |
| 63 | , fColorTable (other.fColorTable) |
| 64 | , fPixelRefOrigin (other.fPixelRefOrigin) |
| 65 | , fInfo (std::move(other.fInfo)) |
| 66 | , fRowBytes (other.fRowBytes) |
| 67 | , fFlags (other.fFlags) { |
| 68 | SkASSERT(!other.fPixelRef); |
| 69 | other.fInfo.reset(); |
| 70 | other.fPixelLockCount = 0; |
| 71 | other.fPixels = nullptr; |
| 72 | other.fColorTable = nullptr; |
| 73 | other.fPixelRefOrigin = SkIPoint{0, 0}; |
| 74 | other.fRowBytes = 0; |
| 75 | other.fFlags = 0; |
| 76 | } |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 77 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | SkBitmap::~SkBitmap() { |
| 79 | SkDEBUGCODE(this->validate();) |
| 80 | this->freePixels(); |
| 81 | } |
| 82 | |
| 83 | SkBitmap& SkBitmap::operator=(const SkBitmap& src) { |
| 84 | if (this != &src) { |
| 85 | this->freePixels(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 86 | SkASSERT(!fPixels); |
| 87 | SkASSERT(!fColorTable); |
| 88 | SkASSERT(!fPixelLockCount); |
| 89 | fPixelRef = src.fPixelRef; |
| 90 | fPixelRefOrigin = src.fPixelRefOrigin; |
| 91 | fInfo = src.fInfo; |
| 92 | fRowBytes = src.fRowBytes; |
| 93 | fFlags = src.fFlags; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 94 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | SkDEBUGCODE(this->validate();) |
| 96 | return *this; |
| 97 | } |
| 98 | |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 99 | SkBitmap& SkBitmap::operator=(SkBitmap&& other) { |
| 100 | if (this != &other) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 101 | this->freePixels(); |
| 102 | SkASSERT(!fPixels); |
| 103 | SkASSERT(!fColorTable); |
| 104 | SkASSERT(!fPixelLockCount); |
| 105 | fPixelRef = std::move(other.fPixelRef); |
| 106 | fInfo = std::move(other.fInfo); |
| 107 | fPixelLockCount = other.fPixelLockCount; |
| 108 | fPixels = other.fPixels; |
| 109 | fColorTable = other.fColorTable; |
| 110 | fPixelRefOrigin = other.fPixelRefOrigin; |
| 111 | fRowBytes = other.fRowBytes; |
| 112 | fFlags = other.fFlags; |
| 113 | SkASSERT(!other.fPixelRef); |
| 114 | other.fInfo.reset(); |
| 115 | other.fPixelLockCount = 0; |
| 116 | other.fPixels = nullptr; |
| 117 | other.fColorTable = nullptr; |
| 118 | other.fPixelRefOrigin = SkIPoint{0, 0}; |
| 119 | other.fRowBytes = 0; |
| 120 | other.fFlags = 0; |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 121 | } |
| 122 | return *this; |
| 123 | } |
| 124 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 125 | void SkBitmap::swap(SkBitmap& other) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 126 | SkTSwap(*this, other); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 127 | SkDEBUGCODE(this->validate();) |
| 128 | } |
| 129 | |
| 130 | void SkBitmap::reset() { |
| 131 | this->freePixels(); |
msarett | 23c5110 | 2016-05-27 07:39:02 -0700 | [diff] [blame] | 132 | this->fInfo.reset(); |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 133 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 134 | } |
| 135 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 136 | void SkBitmap::getBounds(SkRect* bounds) const { |
| 137 | SkASSERT(bounds); |
| 138 | bounds->set(0, 0, |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 139 | SkIntToScalar(fInfo.width()), SkIntToScalar(fInfo.height())); |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 140 | } |
| 141 | |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 142 | void SkBitmap::getBounds(SkIRect* bounds) const { |
| 143 | SkASSERT(bounds); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 144 | bounds->set(0, 0, fInfo.width(), fInfo.height()); |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 145 | } |
| 146 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 147 | /////////////////////////////////////////////////////////////////////////////// |
| 148 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 149 | bool SkBitmap::setInfo(const SkImageInfo& info, size_t rowBytes) { |
| 150 | SkAlphaType newAT = info.alphaType(); |
| 151 | if (!SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &newAT)) { |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 152 | return reset_return_false(this); |
| 153 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 154 | // don't look at info.alphaType(), since newAT is the real value... |
skia.committer@gmail.com | 02d6f54 | 2014-02-14 03:02:05 +0000 | [diff] [blame] | 155 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 156 | // require that rowBytes fit in 31bits |
| 157 | int64_t mrb = info.minRowBytes64(); |
| 158 | if ((int32_t)mrb != mrb) { |
| 159 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 160 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 161 | if ((int64_t)rowBytes != (int32_t)rowBytes) { |
| 162 | return reset_return_false(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 164 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 165 | if (info.width() < 0 || info.height() < 0) { |
| 166 | return reset_return_false(this); |
| 167 | } |
| 168 | |
| 169 | if (kUnknown_SkColorType == info.colorType()) { |
| 170 | rowBytes = 0; |
| 171 | } else if (0 == rowBytes) { |
| 172 | rowBytes = (size_t)mrb; |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 173 | } else if (!info.validRowBytes(rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 174 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | this->freePixels(); |
| 178 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 179 | fInfo = info.makeAlphaType(newAT); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 180 | fRowBytes = SkToU32(rowBytes); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 181 | return true; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 182 | } |
| 183 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 184 | bool SkBitmap::setAlphaType(SkAlphaType newAlphaType) { |
| 185 | if (!SkColorTypeValidateAlphaType(fInfo.colorType(), newAlphaType, &newAlphaType)) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 186 | return false; |
| 187 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 188 | if (fInfo.alphaType() != newAlphaType) { |
| 189 | fInfo = fInfo.makeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 190 | if (fPixelRef) { |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 191 | fPixelRef->changeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 192 | } |
| 193 | } |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 194 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | void SkBitmap::updatePixelsFromRef() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 198 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | if (fPixelLockCount > 0) { |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 200 | SkASSERT(fPixelRef->isLocked()); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 201 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 202 | void* p = fPixelRef->pixels(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 203 | if (p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 204 | p = (char*)p |
reed@google.com | 303c475 | 2014-01-09 20:00:14 +0000 | [diff] [blame] | 205 | + fPixelRefOrigin.fY * fRowBytes |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 206 | + fPixelRefOrigin.fX * fInfo.bytesPerPixel(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 207 | } |
| 208 | fPixels = p; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 209 | fColorTable = fPixelRef->colorTable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 210 | } else { |
| 211 | SkASSERT(0 == fPixelLockCount); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 212 | fPixels = nullptr; |
| 213 | fColorTable = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | } |
| 215 | } |
| 216 | } |
| 217 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 218 | void SkBitmap::setPixelRef(sk_sp<SkPixelRef> pr, int dx, int dy) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 219 | #ifdef SK_DEBUG |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 220 | if (pr) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 221 | if (kUnknown_SkColorType != fInfo.colorType()) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 222 | const SkImageInfo& prInfo = pr->info(); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 223 | SkASSERT(fInfo.width() <= prInfo.width()); |
| 224 | SkASSERT(fInfo.height() <= prInfo.height()); |
| 225 | SkASSERT(fInfo.colorType() == prInfo.colorType()); |
| 226 | switch (prInfo.alphaType()) { |
reed | 4497748 | 2015-02-27 10:23:00 -0800 | [diff] [blame] | 227 | case kUnknown_SkAlphaType: |
| 228 | SkASSERT(fInfo.alphaType() == kUnknown_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 229 | break; |
| 230 | case kOpaque_SkAlphaType: |
| 231 | case kPremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 232 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 233 | fInfo.alphaType() == kPremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 234 | break; |
| 235 | case kUnpremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 236 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 237 | fInfo.alphaType() == kUnpremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 238 | break; |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 243 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 244 | if (pr) { |
| 245 | const SkImageInfo& info = pr->info(); |
bungeman | 62ce030 | 2015-08-28 09:09:32 -0700 | [diff] [blame] | 246 | fPixelRefOrigin.set(SkTPin(dx, 0, info.width()), SkTPin(dy, 0, info.height())); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 247 | } else { |
| 248 | // ignore dx,dy if there is no pixelref |
| 249 | fPixelRefOrigin.setZero(); |
| 250 | } |
| 251 | |
| 252 | if (fPixelRef != pr) { |
piotaixr | 0eb02a6 | 2014-06-16 11:50:49 -0700 | [diff] [blame] | 253 | this->freePixels(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 254 | SkASSERT(!fPixelRef); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 255 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 256 | fPixelRef = std::move(pr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 257 | this->updatePixelsFromRef(); |
| 258 | } |
| 259 | |
| 260 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | void SkBitmap::lockPixels() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 264 | if (fPixelRef && 0 == sk_atomic_inc(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 265 | fPixelRef->lockPixels(); |
| 266 | this->updatePixelsFromRef(); |
| 267 | } |
| 268 | SkDEBUGCODE(this->validate();) |
| 269 | } |
| 270 | |
| 271 | void SkBitmap::unlockPixels() const { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 272 | SkASSERT(!fPixelRef || fPixelLockCount > 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 273 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 274 | if (fPixelRef && 1 == sk_atomic_dec(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | fPixelRef->unlockPixels(); |
| 276 | this->updatePixelsFromRef(); |
| 277 | } |
| 278 | SkDEBUGCODE(this->validate();) |
| 279 | } |
| 280 | |
| 281 | void SkBitmap::setPixels(void* p, SkColorTable* ctable) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 282 | if (nullptr == p) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 283 | this->setPixelRef(nullptr, 0, 0); |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 284 | return; |
| 285 | } |
| 286 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 287 | if (kUnknown_SkColorType == fInfo.colorType()) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 288 | this->setPixelRef(nullptr, 0, 0); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 289 | return; |
| 290 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 291 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 292 | this->setPixelRef(SkMallocPixelRef::MakeDirect(fInfo, p, fRowBytes, sk_ref_sp(ctable)), 0, 0); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 293 | if (!fPixelRef) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 294 | return; |
| 295 | } |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 296 | // since we're already allocated, we lockPixels right away |
| 297 | this->lockPixels(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 298 | SkDEBUGCODE(this->validate();) |
| 299 | } |
| 300 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 301 | bool SkBitmap::tryAllocPixels(Allocator* allocator, SkColorTable* ctable) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 302 | HeapAllocator stdalloc; |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 303 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 304 | if (nullptr == allocator) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 305 | allocator = &stdalloc; |
| 306 | } |
| 307 | return allocator->allocPixelRef(this, ctable); |
| 308 | } |
| 309 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 310 | /////////////////////////////////////////////////////////////////////////////// |
| 311 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 312 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, size_t rowBytes) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 313 | if (kIndex_8_SkColorType == requestedInfo.colorType()) { |
| 314 | return reset_return_false(this); |
| 315 | } |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 316 | if (!this->setInfo(requestedInfo, rowBytes)) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 317 | return reset_return_false(this); |
| 318 | } |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 319 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 320 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 321 | const SkImageInfo& correctedInfo = this->info(); |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 322 | // setInfo may have computed a valid rowbytes if 0 were passed in |
| 323 | rowBytes = this->rowBytes(); |
| 324 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 325 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(correctedInfo, rowBytes, nullptr); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 326 | if (!pr) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 327 | return reset_return_false(this); |
| 328 | } |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 329 | this->setPixelRef(std::move(pr), 0, 0); |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 330 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 331 | // TODO: lockPixels could/should return bool or void*/nullptr |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 332 | this->lockPixels(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 333 | if (nullptr == this->getPixels()) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 334 | return reset_return_false(this); |
| 335 | } |
| 336 | return true; |
| 337 | } |
| 338 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 339 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, sk_sp<SkColorTable> ctable, |
| 340 | uint32_t allocFlags) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 341 | if (kIndex_8_SkColorType == requestedInfo.colorType() && nullptr == ctable) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 342 | return reset_return_false(this); |
| 343 | } |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 344 | if (!this->setInfo(requestedInfo)) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 345 | return reset_return_false(this); |
| 346 | } |
| 347 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 348 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 349 | const SkImageInfo& correctedInfo = this->info(); |
| 350 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 351 | sk_sp<SkPixelRef> pr = (allocFlags & kZeroPixels_AllocFlag) ? |
| 352 | SkMallocPixelRef::MakeZeroed(correctedInfo, correctedInfo.minRowBytes(), ctable) : |
| 353 | SkMallocPixelRef::MakeAllocate(correctedInfo, correctedInfo.minRowBytes(), ctable); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 354 | if (!pr) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 355 | return reset_return_false(this); |
| 356 | } |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 357 | this->setPixelRef(std::move(pr), 0, 0); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 358 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 359 | this->lockPixels(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 360 | if (nullptr == this->getPixels()) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 361 | return reset_return_false(this); |
| 362 | } |
| 363 | return true; |
| 364 | } |
| 365 | |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 366 | static void invoke_release_proc(void (*proc)(void* pixels, void* ctx), void* pixels, void* ctx) { |
| 367 | if (proc) { |
| 368 | proc(pixels, ctx); |
| 369 | } |
| 370 | } |
| 371 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 372 | bool SkBitmap::installPixels(const SkImageInfo& requestedInfo, void* pixels, size_t rb, |
| 373 | SkColorTable* ct, void (*releaseProc)(void* addr, void* context), |
| 374 | void* context) { |
| 375 | if (!this->setInfo(requestedInfo, rb)) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 376 | invoke_release_proc(releaseProc, pixels, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 377 | this->reset(); |
| 378 | return false; |
| 379 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 380 | if (nullptr == pixels) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 381 | invoke_release_proc(releaseProc, pixels, context); |
| 382 | return true; // we behaved as if they called setInfo() |
| 383 | } |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 384 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 385 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 386 | const SkImageInfo& correctedInfo = this->info(); |
| 387 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 388 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeWithProc(correctedInfo, rb, sk_ref_sp(ct), |
| 389 | pixels, releaseProc, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 390 | if (!pr) { |
| 391 | this->reset(); |
| 392 | return false; |
| 393 | } |
| 394 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 395 | this->setPixelRef(std::move(pr), 0, 0); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 396 | |
| 397 | // since we're already allocated, we lockPixels right away |
| 398 | this->lockPixels(); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 399 | SkDEBUGCODE(this->validate();) |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 400 | return true; |
| 401 | } |
| 402 | |
halcanary | e36ec87 | 2015-12-09 11:36:59 -0800 | [diff] [blame] | 403 | bool SkBitmap::installPixels(const SkPixmap& pixmap) { |
| 404 | return this->installPixels(pixmap.info(), pixmap.writable_addr(), |
| 405 | pixmap.rowBytes(), pixmap.ctable(), |
| 406 | nullptr, nullptr); |
| 407 | } |
| 408 | |
commit-bot@chromium.org | dac5225 | 2014-02-17 21:21:46 +0000 | [diff] [blame] | 409 | bool SkBitmap::installMaskPixels(const SkMask& mask) { |
| 410 | if (SkMask::kA8_Format != mask.fFormat) { |
| 411 | this->reset(); |
| 412 | return false; |
| 413 | } |
| 414 | return this->installPixels(SkImageInfo::MakeA8(mask.fBounds.width(), |
| 415 | mask.fBounds.height()), |
| 416 | mask.fImage, mask.fRowBytes); |
| 417 | } |
| 418 | |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 419 | /////////////////////////////////////////////////////////////////////////////// |
| 420 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 421 | void SkBitmap::freePixels() { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 422 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 423 | if (fPixelLockCount > 0) { |
| 424 | fPixelRef->unlockPixels(); |
| 425 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 426 | fPixelRef = nullptr; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 427 | fPixelRefOrigin.setZero(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 428 | } |
| 429 | fPixelLockCount = 0; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 430 | fPixels = nullptr; |
| 431 | fColorTable = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 432 | } |
| 433 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 434 | uint32_t SkBitmap::getGenerationID() const { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 435 | return fPixelRef ? fPixelRef->getGenerationID() : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 436 | } |
| 437 | |
| 438 | void SkBitmap::notifyPixelsChanged() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 439 | SkASSERT(!this->isImmutable()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 440 | if (fPixelRef) { |
| 441 | fPixelRef->notifyPixelsChanged(); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | /////////////////////////////////////////////////////////////////////////////// |
| 446 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 447 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 448 | so that we can freely assign memory allocated by one class to the other. |
| 449 | */ |
| 450 | bool SkBitmap::HeapAllocator::allocPixelRef(SkBitmap* dst, |
| 451 | SkColorTable* ctable) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 452 | const SkImageInfo info = dst->info(); |
| 453 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 454 | // SkDebugf("unsupported config for info %d\n", dst->config()); |
| 455 | return false; |
| 456 | } |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 457 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 458 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(info, dst->rowBytes(), sk_ref_sp(ctable)); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 459 | if (!pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 460 | return false; |
| 461 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 462 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 463 | dst->setPixelRef(std::move(pr), 0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 464 | // since we're already allocated, we lockPixels right away |
| 465 | dst->lockPixels(); |
| 466 | return true; |
| 467 | } |
| 468 | |
| 469 | /////////////////////////////////////////////////////////////////////////////// |
| 470 | |
Mike Klein | 7bfdfda | 2017-04-11 15:37:50 +0000 | [diff] [blame^] | 471 | static bool copy_pixels_to(const SkPixmap& src, void* const dst, size_t dstSize, |
| 472 | size_t dstRowBytes, bool preserveDstPad) { |
| 473 | const SkImageInfo& info = src.info(); |
| 474 | |
| 475 | if (0 == dstRowBytes) { |
| 476 | dstRowBytes = src.rowBytes(); |
| 477 | } |
| 478 | if (dstRowBytes < info.minRowBytes()) { |
| 479 | return false; |
| 480 | } |
| 481 | |
| 482 | if (!preserveDstPad && static_cast<uint32_t>(dstRowBytes) == src.rowBytes()) { |
| 483 | size_t safeSize = src.getSafeSize(); |
| 484 | if (safeSize > dstSize || safeSize == 0) |
| 485 | return false; |
| 486 | else { |
| 487 | // This implementation will write bytes beyond the end of each row, |
| 488 | // excluding the last row, if the bitmap's stride is greater than |
| 489 | // strictly required by the current config. |
| 490 | memcpy(dst, src.addr(), safeSize); |
| 491 | return true; |
| 492 | } |
| 493 | } else { |
| 494 | // If destination has different stride than us, then copy line by line. |
| 495 | if (info.getSafeSize(dstRowBytes) > dstSize) { |
| 496 | return false; |
| 497 | } else { |
| 498 | // Just copy what we need on each line. |
| 499 | size_t rowBytes = info.minRowBytes(); |
| 500 | const uint8_t* srcP = reinterpret_cast<const uint8_t*>(src.addr()); |
| 501 | uint8_t* dstP = reinterpret_cast<uint8_t*>(dst); |
| 502 | for (int row = 0; row < info.height(); ++row) { |
| 503 | memcpy(dstP, srcP, rowBytes); |
| 504 | srcP += src.rowBytes(); |
| 505 | dstP += dstRowBytes; |
| 506 | } |
| 507 | |
| 508 | return true; |
| 509 | } |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | bool SkBitmap::copyPixelsTo(void* dst, size_t dstSize, size_t dstRB, bool preserveDstPad) const { |
| 514 | if (nullptr == dst) { |
| 515 | return false; |
| 516 | } |
| 517 | SkAutoPixmapUnlock result; |
| 518 | if (!this->requestLock(&result)) { |
| 519 | return false; |
| 520 | } |
| 521 | return copy_pixels_to(result.pixmap(), dst, dstSize, dstRB, preserveDstPad); |
| 522 | } |
| 523 | |
| 524 | /////////////////////////////////////////////////////////////////////////////// |
| 525 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 526 | bool SkBitmap::isImmutable() const { |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 527 | return fPixelRef ? fPixelRef->isImmutable() : false; |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 528 | } |
| 529 | |
| 530 | void SkBitmap::setImmutable() { |
| 531 | if (fPixelRef) { |
| 532 | fPixelRef->setImmutable(); |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 533 | } |
| 534 | } |
| 535 | |
junov@google.com | 4ee7ae5 | 2011-06-30 17:30:49 +0000 | [diff] [blame] | 536 | bool SkBitmap::isVolatile() const { |
| 537 | return (fFlags & kImageIsVolatile_Flag) != 0; |
| 538 | } |
| 539 | |
| 540 | void SkBitmap::setIsVolatile(bool isVolatile) { |
| 541 | if (isVolatile) { |
| 542 | fFlags |= kImageIsVolatile_Flag; |
| 543 | } else { |
| 544 | fFlags &= ~kImageIsVolatile_Flag; |
| 545 | } |
| 546 | } |
| 547 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 548 | void* SkBitmap::getAddr(int x, int y) const { |
| 549 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 550 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 551 | |
| 552 | char* base = (char*)this->getPixels(); |
| 553 | if (base) { |
| 554 | base += y * this->rowBytes(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 555 | switch (this->colorType()) { |
mtklein | 7fd93e3 | 2016-07-26 13:05:30 -0700 | [diff] [blame] | 556 | case kRGBA_F16_SkColorType: |
| 557 | base += x << 3; |
| 558 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 559 | case kRGBA_8888_SkColorType: |
| 560 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 561 | base += x << 2; |
| 562 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 563 | case kARGB_4444_SkColorType: |
| 564 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 565 | base += x << 1; |
| 566 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 567 | case kAlpha_8_SkColorType: |
| 568 | case kIndex_8_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 569 | case kGray_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 570 | base += x; |
| 571 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 572 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 573 | SkDEBUGFAIL("Can't return addr for config"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 574 | base = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | break; |
| 576 | } |
| 577 | } |
| 578 | return base; |
| 579 | } |
| 580 | |
| 581 | /////////////////////////////////////////////////////////////////////////////// |
| 582 | /////////////////////////////////////////////////////////////////////////////// |
| 583 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 584 | void SkBitmap::erase(SkColor c, const SkIRect& area) const { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 585 | SkDEBUGCODE(this->validate();) |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 586 | |
| 587 | switch (fInfo.colorType()) { |
| 588 | case kUnknown_SkColorType: |
| 589 | case kIndex_8_SkColorType: |
| 590 | // TODO: can we ASSERT that we never get here? |
| 591 | return; // can't erase. Should we bzero so the memory is not uninitialized? |
| 592 | default: |
| 593 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 594 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 595 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 596 | SkAutoPixmapUnlock result; |
| 597 | if (!this->requestLock(&result)) { |
| 598 | return; |
| 599 | } |
| 600 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 601 | if (result.pixmap().erase(c, area)) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 602 | this->notifyPixelsChanged(); |
| 603 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 604 | } |
| 605 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 606 | void SkBitmap::eraseColor(SkColor c) const { |
| 607 | this->erase(c, SkIRect::MakeWH(this->width(), this->height())); |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 608 | } |
| 609 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 610 | ////////////////////////////////////////////////////////////////////////////////////// |
| 611 | ////////////////////////////////////////////////////////////////////////////////////// |
| 612 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 613 | bool SkBitmap::extractSubset(SkBitmap* result, const SkIRect& subset) const { |
| 614 | SkDEBUGCODE(this->validate();) |
| 615 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 616 | if (nullptr == result || !fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 617 | return false; // no src pixels |
| 618 | } |
| 619 | |
| 620 | SkIRect srcRect, r; |
| 621 | srcRect.set(0, 0, this->width(), this->height()); |
| 622 | if (!r.intersect(srcRect, subset)) { |
| 623 | return false; // r is empty (i.e. no intersection) |
| 624 | } |
| 625 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 626 | // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have |
| 627 | // exited above. |
| 628 | SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width())); |
| 629 | SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height())); |
| 630 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 631 | SkBitmap dst; |
herb | b5d7468 | 2016-04-21 08:45:39 -0700 | [diff] [blame] | 632 | dst.setInfo(this->info().makeWH(r.width(), r.height()), this->rowBytes()); |
skyostil@google.com | 0eb7576 | 2012-01-16 10:45:53 +0000 | [diff] [blame] | 633 | dst.setIsVolatile(this->isVolatile()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 634 | |
| 635 | if (fPixelRef) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 636 | SkIPoint origin = fPixelRefOrigin; |
| 637 | origin.fX += r.fLeft; |
| 638 | origin.fY += r.fTop; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 639 | // share the pixelref with a custom offset |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 640 | dst.setPixelRef(fPixelRef, origin.x(), origin.y()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 641 | } |
| 642 | SkDEBUGCODE(dst.validate();) |
| 643 | |
| 644 | // we know we're good, so commit to result |
| 645 | result->swap(dst); |
| 646 | return true; |
| 647 | } |
| 648 | |
| 649 | /////////////////////////////////////////////////////////////////////////////// |
| 650 | |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 651 | bool SkBitmap::canCopyTo(SkColorType dstCT) const { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 652 | const SkColorType srcCT = this->colorType(); |
| 653 | |
| 654 | if (srcCT == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 655 | return false; |
| 656 | } |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 657 | if (srcCT == kAlpha_8_SkColorType && dstCT != kAlpha_8_SkColorType) { |
| 658 | return false; // can't convert from alpha to non-alpha |
| 659 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 660 | |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 661 | bool sameConfigs = (srcCT == dstCT); |
| 662 | switch (dstCT) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 663 | case kAlpha_8_SkColorType: |
| 664 | case kRGB_565_SkColorType: |
commit-bot@chromium.org | 60b5dce | 2014-04-22 20:24:33 +0000 | [diff] [blame] | 665 | case kRGBA_8888_SkColorType: |
| 666 | case kBGRA_8888_SkColorType: |
Matt Sarett | d9836f4 | 2017-04-05 15:41:53 -0400 | [diff] [blame] | 667 | case kRGBA_F16_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 668 | break; |
Matt Sarett | cb6266b | 2017-01-17 10:48:53 -0500 | [diff] [blame] | 669 | case kGray_8_SkColorType: |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 670 | if (!sameConfigs) { |
| 671 | return false; |
| 672 | } |
| 673 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 674 | case kARGB_4444_SkColorType: |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 675 | return sameConfigs || kN32_SkColorType == srcCT || kIndex_8_SkColorType == srcCT; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 676 | default: |
| 677 | return false; |
| 678 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 679 | return true; |
| 680 | } |
| 681 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 682 | bool SkBitmap::readPixels(const SkImageInfo& requestedDstInfo, void* dstPixels, size_t dstRB, |
| 683 | int x, int y) const { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 684 | SkAutoPixmapUnlock src; |
| 685 | if (!this->requestLock(&src)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 686 | return false; |
| 687 | } |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 688 | return src.pixmap().readPixels(requestedDstInfo, dstPixels, dstRB, x, y); |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 689 | } |
| 690 | |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 691 | bool SkBitmap::readPixels(const SkPixmap& dst, int srcX, int srcY) const { |
| 692 | return this->readPixels(dst.info(), dst.writable_addr(), dst.rowBytes(), srcX, srcY); |
| 693 | } |
| 694 | |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 695 | bool SkBitmap::writePixels(const SkPixmap& src, int dstX, int dstY, |
| 696 | SkTransferFunctionBehavior behavior) { |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 697 | SkAutoPixmapUnlock dst; |
| 698 | if (!this->requestLock(&dst)) { |
| 699 | return false; |
| 700 | } |
| 701 | |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 702 | if (!SkImageInfoValidConversion(fInfo, src.info())) { |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 703 | return false; |
| 704 | } |
| 705 | |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 706 | SkWritePixelsRec rec(src.info(), src.addr(), src.rowBytes(), dstX, dstY); |
| 707 | if (!rec.trim(fInfo.width(), fInfo.height())) { |
| 708 | return false; |
| 709 | } |
| 710 | |
| 711 | void* dstPixels = this->getAddr(rec.fX, rec.fY); |
| 712 | const SkImageInfo dstInfo = fInfo.makeWH(rec.fInfo.width(), rec.fInfo.height()); |
Matt Sarett | 485c499 | 2017-02-14 14:18:27 -0500 | [diff] [blame] | 713 | SkConvertPixels(dstInfo, dstPixels, this->rowBytes(), rec.fInfo, rec.fPixels, rec.fRowBytes, |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 714 | src.ctable(), behavior); |
Matt Sarett | 8572d85 | 2017-02-14 11:21:02 -0500 | [diff] [blame] | 715 | return true; |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 716 | } |
| 717 | |
Mike Reed | 42ce38f | 2017-04-06 14:03:25 -0400 | [diff] [blame] | 718 | bool SkBitmap::internalCopyTo(SkBitmap* dst, SkColorType dstColorType, Allocator* alloc) const { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 719 | if (!this->canCopyTo(dstColorType)) { |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 720 | return false; |
| 721 | } |
| 722 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 723 | SkAutoPixmapUnlock srcUnlocker; |
Matt Sarett | 1987366 | 2017-04-05 13:36:08 -0400 | [diff] [blame] | 724 | if (!this->requestLock(&srcUnlocker)) { |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 725 | return false; |
| 726 | } |
Matt Sarett | cb6266b | 2017-01-17 10:48:53 -0500 | [diff] [blame] | 727 | SkPixmap srcPM = srcUnlocker.pixmap(); |
Matt Sarett | d9836f4 | 2017-04-05 15:41:53 -0400 | [diff] [blame] | 728 | |
| 729 | // Various Android specific compatibility modes. |
| 730 | // TODO: |
| 731 | // Move the logic of this entire function into the framework, then call readPixels() directly. |
| 732 | SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType); |
| 733 | switch (dstColorType) { |
| 734 | case kRGB_565_SkColorType: |
| 735 | // copyTo() is not strict on alpha type. Here we set the src to opaque to allow |
| 736 | // the call to readPixels() to succeed and preserve this lenient behavior. |
| 737 | if (kOpaque_SkAlphaType != srcPM.alphaType()) { |
| 738 | srcPM = SkPixmap(srcPM.info().makeAlphaType(kOpaque_SkAlphaType), srcPM.addr(), |
| 739 | srcPM.rowBytes(), srcPM.ctable()); |
| 740 | dstInfo = dstInfo.makeAlphaType(kOpaque_SkAlphaType); |
| 741 | } |
| 742 | break; |
| 743 | case kRGBA_F16_SkColorType: |
| 744 | // The caller does not have an opportunity to pass a dst color space. Assume that |
| 745 | // they want linear sRGB. |
| 746 | dstInfo = dstInfo.makeColorSpace(SkColorSpace::MakeSRGBLinear()); |
| 747 | |
| 748 | if (!srcPM.colorSpace()) { |
| 749 | // We can't do a sane conversion to F16 without a dst color space. Guess sRGB |
| 750 | // in this case. |
| 751 | srcPM.setColorSpace(SkColorSpace::MakeSRGB()); |
| 752 | } |
| 753 | break; |
| 754 | default: |
| 755 | break; |
Matt Sarett | cb6266b | 2017-01-17 10:48:53 -0500 | [diff] [blame] | 756 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 757 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 758 | SkBitmap tmpDst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 759 | if (!tmpDst.setInfo(dstInfo)) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 760 | return false; |
| 761 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 762 | |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 763 | // allocate colortable if srcConfig == kIndex8_Config |
Hal Canary | 704cd32 | 2016-11-07 14:13:52 -0500 | [diff] [blame] | 764 | sk_sp<SkColorTable> ctable; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 765 | if (dstColorType == kIndex_8_SkColorType) { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 766 | ctable.reset(SkRef(srcPM.ctable())); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 767 | } |
Hal Canary | 704cd32 | 2016-11-07 14:13:52 -0500 | [diff] [blame] | 768 | if (!tmpDst.tryAllocPixels(alloc, ctable.get())) { |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 769 | return false; |
| 770 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 771 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 772 | SkAutoPixmapUnlock dstUnlocker; |
| 773 | if (!tmpDst.requestLock(&dstUnlocker)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 774 | return false; |
| 775 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 776 | |
Matt Sarett | d9836f4 | 2017-04-05 15:41:53 -0400 | [diff] [blame] | 777 | SkPixmap dstPM = dstUnlocker.pixmap(); |
| 778 | |
| 779 | // We can't do a sane conversion from F16 without a src color space. Guess sRGB in this case. |
| 780 | if (kRGBA_F16_SkColorType == srcPM.colorType() && !dstPM.colorSpace()) { |
| 781 | dstPM.setColorSpace(SkColorSpace::MakeSRGB()); |
| 782 | } |
| 783 | |
| 784 | // readPixels does not yet support color spaces with parametric transfer functions. This |
| 785 | // works around that restriction when the color spaces are equal. |
| 786 | if (kRGBA_F16_SkColorType != dstColorType && kRGBA_F16_SkColorType != srcPM.colorType() && |
| 787 | dstPM.colorSpace() == srcPM.colorSpace()) { |
| 788 | dstPM.setColorSpace(nullptr); |
| 789 | srcPM.setColorSpace(nullptr); |
| 790 | } |
| 791 | |
| 792 | if (!srcPM.readPixels(dstPM)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 793 | return false; |
| 794 | } |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 795 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 796 | // (for BitmapHeap) Clone the pixelref genID even though we have a new pixelref. |
| 797 | // The old copyTo impl did this, so we continue it for now. |
| 798 | // |
| 799 | // TODO: should we ignore rowbytes (i.e. getSize)? Then it could just be |
| 800 | // if (src_pixelref->info == dst_pixelref->info) |
| 801 | // |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 802 | if (srcPM.colorType() == dstColorType && tmpDst.getSize() == srcPM.getSize64()) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 803 | SkPixelRef* dstPixelRef = tmpDst.pixelRef(); |
| 804 | if (dstPixelRef->info() == fPixelRef->info()) { |
| 805 | dstPixelRef->cloneGenID(*fPixelRef); |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 806 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 807 | } |
| 808 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 809 | dst->swap(tmpDst); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 810 | return true; |
| 811 | } |
| 812 | |
Mike Reed | 42ce38f | 2017-04-06 14:03:25 -0400 | [diff] [blame] | 813 | bool SkBitmap::copyTo(SkBitmap* dst, SkColorType ct) const { |
| 814 | return this->internalCopyTo(dst, ct, nullptr); |
| 815 | } |
| 816 | |
| 817 | #ifdef SK_BUILD_FOR_ANDROID |
| 818 | bool SkBitmap::copyTo(SkBitmap* dst, SkColorType ct, Allocator* alloc) const { |
| 819 | return this->internalCopyTo(dst, ct, alloc); |
| 820 | } |
| 821 | #endif |
| 822 | |
reed | c7ec7c9 | 2016-07-25 08:29:10 -0700 | [diff] [blame] | 823 | // TODO: can we merge this with copyTo? |
commit-bot@chromium.org | fab349c | 2014-03-05 02:34:58 +0000 | [diff] [blame] | 824 | bool SkBitmap::deepCopyTo(SkBitmap* dst) const { |
reed | e4538f5 | 2014-06-11 06:09:50 -0700 | [diff] [blame] | 825 | const SkColorType dstCT = this->colorType(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 826 | |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 827 | if (!this->canCopyTo(dstCT)) { |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 828 | return false; |
| 829 | } |
Mike Reed | 42ce38f | 2017-04-06 14:03:25 -0400 | [diff] [blame] | 830 | return this->copyTo(dst, dstCT); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 831 | } |
| 832 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 833 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 834 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 835 | static bool GetBitmapAlpha(const SkBitmap& src, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 836 | SkASSERT(alpha != nullptr); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 837 | SkASSERT(alphaRowBytes >= src.width()); |
| 838 | |
| 839 | SkAutoPixmapUnlock apl; |
| 840 | if (!src.requestLock(&apl)) { |
lsalzman | a2415ac | 2016-10-11 14:29:12 -0700 | [diff] [blame] | 841 | for (int y = 0; y < src.height(); ++y) { |
| 842 | memset(alpha, 0, src.width()); |
| 843 | alpha += alphaRowBytes; |
| 844 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 845 | return false; |
| 846 | } |
lsalzman | a2415ac | 2016-10-11 14:29:12 -0700 | [diff] [blame] | 847 | const SkPixmap& pmap = apl.pixmap(); |
Matt Sarett | 485c499 | 2017-02-14 14:18:27 -0500 | [diff] [blame] | 848 | SkConvertPixels(SkImageInfo::MakeA8(pmap.width(), pmap.height()), alpha, alphaRowBytes, |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 849 | pmap.info(), pmap.addr(), pmap.rowBytes(), pmap.ctable(), |
| 850 | SkTransferFunctionBehavior::kRespect); |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 851 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 852 | } |
| 853 | |
| 854 | #include "SkPaint.h" |
| 855 | #include "SkMaskFilter.h" |
| 856 | #include "SkMatrix.h" |
| 857 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 858 | bool SkBitmap::extractAlpha(SkBitmap* dst, const SkPaint* paint, |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 859 | Allocator *allocator, SkIPoint* offset) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 860 | SkDEBUGCODE(this->validate();) |
| 861 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 862 | SkBitmap tmpBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 863 | SkMatrix identity; |
| 864 | SkMask srcM, dstM; |
| 865 | |
| 866 | srcM.fBounds.set(0, 0, this->width(), this->height()); |
| 867 | srcM.fRowBytes = SkAlign4(this->width()); |
| 868 | srcM.fFormat = SkMask::kA8_Format; |
| 869 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 870 | SkMaskFilter* filter = paint ? paint->getMaskFilter() : nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 871 | |
| 872 | // compute our (larger?) dst bounds if we have a filter |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 873 | if (filter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 874 | identity.reset(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 875 | if (!filter->filterMask(&dstM, srcM, identity, nullptr)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 876 | goto NO_FILTER_CASE; |
| 877 | } |
| 878 | dstM.fRowBytes = SkAlign4(dstM.fBounds.width()); |
| 879 | } else { |
| 880 | NO_FILTER_CASE: |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 881 | tmpBitmap.setInfo(SkImageInfo::MakeA8(this->width(), this->height()), srcM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 882 | if (!tmpBitmap.tryAllocPixels(allocator, nullptr)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 883 | // Allocation of pixels for alpha bitmap failed. |
| 884 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 885 | tmpBitmap.width(), tmpBitmap.height()); |
| 886 | return false; |
| 887 | } |
| 888 | GetBitmapAlpha(*this, tmpBitmap.getAddr8(0, 0), srcM.fRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 889 | if (offset) { |
| 890 | offset->set(0, 0); |
| 891 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 892 | tmpBitmap.swap(*dst); |
| 893 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 894 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 895 | srcM.fImage = SkMask::AllocImage(srcM.computeImageSize()); |
| 896 | SkAutoMaskFreeImage srcCleanup(srcM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 897 | |
| 898 | GetBitmapAlpha(*this, srcM.fImage, srcM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 899 | if (!filter->filterMask(&dstM, srcM, identity, nullptr)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 900 | goto NO_FILTER_CASE; |
| 901 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 902 | SkAutoMaskFreeImage dstCleanup(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 903 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 904 | tmpBitmap.setInfo(SkImageInfo::MakeA8(dstM.fBounds.width(), dstM.fBounds.height()), |
| 905 | dstM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 906 | if (!tmpBitmap.tryAllocPixels(allocator, nullptr)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 907 | // Allocation of pixels for alpha bitmap failed. |
| 908 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 909 | tmpBitmap.width(), tmpBitmap.height()); |
| 910 | return false; |
| 911 | } |
| 912 | memcpy(tmpBitmap.getPixels(), dstM.fImage, dstM.computeImageSize()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 913 | if (offset) { |
| 914 | offset->set(dstM.fBounds.fLeft, dstM.fBounds.fTop); |
| 915 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 916 | SkDEBUGCODE(tmpBitmap.validate();) |
| 917 | |
| 918 | tmpBitmap.swap(*dst); |
| 919 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | /////////////////////////////////////////////////////////////////////////////// |
| 923 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 924 | static void write_raw_pixels(SkWriteBuffer* buffer, const SkPixmap& pmap) { |
| 925 | const SkImageInfo& info = pmap.info(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 926 | const size_t snugRB = info.width() * info.bytesPerPixel(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 927 | const char* src = (const char*)pmap.addr(); |
| 928 | const size_t ramRB = pmap.rowBytes(); |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 929 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 930 | buffer->write32(SkToU32(snugRB)); |
| 931 | info.flatten(*buffer); |
| 932 | |
| 933 | const size_t size = snugRB * info.height(); |
scroggo | 565901d | 2015-12-10 10:44:13 -0800 | [diff] [blame] | 934 | SkAutoTMalloc<char> storage(size); |
| 935 | char* dst = storage.get(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 936 | for (int y = 0; y < info.height(); ++y) { |
| 937 | memcpy(dst, src, snugRB); |
| 938 | dst += snugRB; |
| 939 | src += ramRB; |
| 940 | } |
| 941 | buffer->writeByteArray(storage.get(), size); |
| 942 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 943 | const SkColorTable* ct = pmap.ctable(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 944 | if (kIndex_8_SkColorType == info.colorType() && ct) { |
| 945 | buffer->writeBool(true); |
| 946 | ct->writeToBuffer(*buffer); |
| 947 | } else { |
| 948 | buffer->writeBool(false); |
| 949 | } |
| 950 | } |
| 951 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 952 | void SkBitmap::WriteRawPixels(SkWriteBuffer* buffer, const SkBitmap& bitmap) { |
| 953 | const SkImageInfo info = bitmap.info(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 954 | if (0 == info.width() || 0 == info.height() || bitmap.isNull()) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 955 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 956 | return; |
| 957 | } |
| 958 | |
| 959 | SkAutoPixmapUnlock result; |
| 960 | if (!bitmap.requestLock(&result)) { |
| 961 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 962 | return; |
| 963 | } |
| 964 | |
| 965 | write_raw_pixels(buffer, result.pixmap()); |
| 966 | } |
| 967 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 968 | bool SkBitmap::ReadRawPixels(SkReadBuffer* buffer, SkBitmap* bitmap) { |
| 969 | const size_t snugRB = buffer->readUInt(); |
| 970 | if (0 == snugRB) { // no pixels |
| 971 | return false; |
| 972 | } |
| 973 | |
| 974 | SkImageInfo info; |
| 975 | info.unflatten(*buffer); |
| 976 | |
Robert Phillips | b2cb535 | 2016-12-20 12:44:41 -0500 | [diff] [blame] | 977 | if (info.width() < 0 || info.height() < 0) { |
| 978 | return false; |
| 979 | } |
| 980 | |
mtklein | 58e389b | 2016-07-15 07:00:11 -0700 | [diff] [blame] | 981 | // If there was an error reading "info" or if it is bogus, |
robertphillips | 74139f1 | 2016-06-28 09:04:34 -0700 | [diff] [blame] | 982 | // don't use it to compute minRowBytes() |
| 983 | if (!buffer->validate(SkColorTypeValidateAlphaType(info.colorType(), |
| 984 | info.alphaType()))) { |
sugoi | ca95c19 | 2014-07-08 09:18:48 -0700 | [diff] [blame] | 985 | return false; |
| 986 | } |
| 987 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 988 | const size_t ramRB = info.minRowBytes(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 989 | const int height = SkMax32(info.height(), 0); |
| 990 | const uint64_t snugSize = sk_64_mul(snugRB, height); |
| 991 | const uint64_t ramSize = sk_64_mul(ramRB, height); |
| 992 | static const uint64_t max_size_t = (size_t)(-1); |
| 993 | if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { |
commit-bot@chromium.org | 0585843 | 2014-05-30 01:06:44 +0000 | [diff] [blame] | 994 | return false; |
| 995 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 996 | |
reed | fde0511 | 2016-03-11 13:02:28 -0800 | [diff] [blame] | 997 | sk_sp<SkData> data(SkData::MakeUninitialized(SkToSizeT(ramSize))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 998 | unsigned char* dst = (unsigned char*)data->writable_data(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 999 | buffer->readByteArray(dst, SkToSizeT(snugSize)); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1000 | |
| 1001 | if (snugSize != ramSize) { |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1002 | const unsigned char* srcRow = dst + snugRB * (height - 1); |
| 1003 | unsigned char* dstRow = dst + ramRB * (height - 1); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1004 | for (int y = height - 1; y >= 1; --y) { |
| 1005 | memmove(dstRow, srcRow, snugRB); |
| 1006 | srcRow -= snugRB; |
| 1007 | dstRow -= ramRB; |
| 1008 | } |
| 1009 | SkASSERT(srcRow == dstRow); // first row does not need to be moved |
| 1010 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1011 | |
Hal Canary | 704cd32 | 2016-11-07 14:13:52 -0500 | [diff] [blame] | 1012 | sk_sp<SkColorTable> ctable; |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1013 | if (buffer->readBool()) { |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 1014 | ctable = SkColorTable::Create(*buffer); |
reed | b236d1a | 2015-08-28 10:14:18 -0700 | [diff] [blame] | 1015 | if (!ctable) { |
| 1016 | return false; |
| 1017 | } |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1018 | |
reed | b236d1a | 2015-08-28 10:14:18 -0700 | [diff] [blame] | 1019 | if (info.isEmpty()) { |
| 1020 | // require an empty ctable |
| 1021 | if (ctable->count() != 0) { |
| 1022 | buffer->validate(false); |
| 1023 | return false; |
| 1024 | } |
| 1025 | } else { |
| 1026 | // require a non-empty ctable |
| 1027 | if (ctable->count() == 0) { |
| 1028 | buffer->validate(false); |
| 1029 | return false; |
| 1030 | } |
| 1031 | unsigned char maxIndex = ctable->count() - 1; |
| 1032 | for (uint64_t i = 0; i < ramSize; ++i) { |
| 1033 | dst[i] = SkTMin(dst[i], maxIndex); |
| 1034 | } |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1035 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1036 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1037 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 1038 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeWithData(info, info.minRowBytes(), |
| 1039 | std::move(ctable), std::move(data)); |
| 1040 | if (!pr) { |
sugoi | 6af3147 | 2015-01-28 13:15:32 -0800 | [diff] [blame] | 1041 | return false; |
| 1042 | } |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1043 | bitmap->setInfo(pr->info()); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 1044 | bitmap->setPixelRef(std::move(pr), 0, 0); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1045 | return true; |
| 1046 | } |
| 1047 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1048 | enum { |
| 1049 | SERIALIZE_PIXELTYPE_NONE, |
djsollen@google.com | 21830d9 | 2012-08-07 19:49:41 +0000 | [diff] [blame] | 1050 | SERIALIZE_PIXELTYPE_REF_DATA |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1051 | }; |
| 1052 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1053 | /////////////////////////////////////////////////////////////////////////////// |
| 1054 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1055 | #ifdef SK_DEBUG |
| 1056 | void SkBitmap::validate() const { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1057 | fInfo.validate(); |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 1058 | |
| 1059 | // ImageInfo may not require this, but Bitmap ensures that opaque-only |
| 1060 | // colorTypes report opaque for their alphatype |
| 1061 | if (kRGB_565_SkColorType == fInfo.colorType()) { |
| 1062 | SkASSERT(kOpaque_SkAlphaType == fInfo.alphaType()); |
| 1063 | } |
| 1064 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1065 | SkASSERT(fInfo.validRowBytes(fRowBytes)); |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1066 | uint8_t allFlags = kImageIsVolatile_Flag; |
scroggo@google.com | 8e990eb | 2013-06-14 15:55:56 +0000 | [diff] [blame] | 1067 | #ifdef SK_BUILD_FOR_ANDROID |
| 1068 | allFlags |= kHasHardwareMipMap_Flag; |
| 1069 | #endif |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1070 | SkASSERT((~allFlags & fFlags) == 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1071 | SkASSERT(fPixelLockCount >= 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1072 | |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1073 | if (fPixels) { |
| 1074 | SkASSERT(fPixelRef); |
robertphillips | e77dadd | 2014-11-21 05:50:21 -0800 | [diff] [blame] | 1075 | SkASSERT(fPixelLockCount > 0); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1076 | SkASSERT(fPixelRef->isLocked()); |
| 1077 | SkASSERT(fPixelRef->rowBytes() == fRowBytes); |
| 1078 | SkASSERT(fPixelRefOrigin.fX >= 0); |
| 1079 | SkASSERT(fPixelRefOrigin.fY >= 0); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1080 | SkASSERT(fPixelRef->info().width() >= (int)this->width() + fPixelRefOrigin.fX); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 1081 | SkASSERT(fPixelRef->info().height() >= (int)this->height() + fPixelRefOrigin.fY); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1082 | SkASSERT(fPixelRef->rowBytes() >= fInfo.minRowBytes()); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1083 | } else { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1084 | SkASSERT(nullptr == fColorTable); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1085 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1086 | } |
| 1087 | #endif |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1088 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 1089 | #ifndef SK_IGNORE_TO_STRING |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 1090 | #include "SkString.h" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1091 | void SkBitmap::toString(SkString* str) const { |
| 1092 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1093 | static const char* gColorTypeNames[kLastEnum_SkColorType + 1] = { |
| 1094 | "UNKNOWN", "A8", "565", "4444", "RGBA", "BGRA", "INDEX8", |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1095 | }; |
| 1096 | |
| 1097 | str->appendf("bitmap: ((%d, %d) %s", this->width(), this->height(), |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1098 | gColorTypeNames[this->colorType()]); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1099 | |
| 1100 | str->append(" ("); |
| 1101 | if (this->isOpaque()) { |
| 1102 | str->append("opaque"); |
| 1103 | } else { |
| 1104 | str->append("transparent"); |
| 1105 | } |
| 1106 | if (this->isImmutable()) { |
| 1107 | str->append(", immutable"); |
| 1108 | } else { |
| 1109 | str->append(", not-immutable"); |
| 1110 | } |
| 1111 | str->append(")"); |
| 1112 | |
| 1113 | SkPixelRef* pr = this->pixelRef(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1114 | if (nullptr == pr) { |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1115 | // show null or the explicit pixel address (rare) |
| 1116 | str->appendf(" pixels:%p", this->getPixels()); |
| 1117 | } else { |
| 1118 | const char* uri = pr->getURI(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1119 | if (uri) { |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1120 | str->appendf(" uri:\"%s\"", uri); |
| 1121 | } else { |
| 1122 | str->appendf(" pixelref:%p", pr); |
| 1123 | } |
| 1124 | } |
| 1125 | |
| 1126 | str->append(")"); |
| 1127 | } |
| 1128 | #endif |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1129 | |
| 1130 | /////////////////////////////////////////////////////////////////////////////// |
| 1131 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1132 | bool SkBitmap::requestLock(SkAutoPixmapUnlock* result) const { |
| 1133 | SkASSERT(result); |
| 1134 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 1135 | SkPixelRef* pr = fPixelRef.get(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1136 | if (nullptr == pr) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1137 | return false; |
| 1138 | } |
| 1139 | |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame] | 1140 | // We have to lock the whole thing (using the pixelref's dimensions) until the api supports |
| 1141 | // a partial lock (with offset/origin). Hence we can't use our fInfo. |
| 1142 | SkPixelRef::LockRequest req = { pr->info().dimensions(), kNone_SkFilterQuality }; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1143 | SkPixelRef::LockResult res; |
| 1144 | if (pr->requestLock(req, &res)) { |
reed | e800657 | 2015-05-28 14:06:06 -0700 | [diff] [blame] | 1145 | SkASSERT(res.fPixels); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1146 | // The bitmap may be a subset of the pixelref's dimensions |
| 1147 | SkASSERT(fPixelRefOrigin.x() + fInfo.width() <= res.fSize.width()); |
| 1148 | SkASSERT(fPixelRefOrigin.y() + fInfo.height() <= res.fSize.height()); |
| 1149 | const void* addr = (const char*)res.fPixels + SkColorTypeComputeOffset(fInfo.colorType(), |
| 1150 | fPixelRefOrigin.x(), |
| 1151 | fPixelRefOrigin.y(), |
| 1152 | res.fRowBytes); |
| 1153 | |
| 1154 | result->reset(SkPixmap(this->info(), addr, res.fRowBytes, res.fCTable), |
| 1155 | res.fUnlockProc, res.fUnlockContext); |
| 1156 | return true; |
| 1157 | } |
| 1158 | return false; |
| 1159 | } |
| 1160 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 1161 | bool SkBitmap::peekPixels(SkPixmap* pmap) const { |
| 1162 | if (fPixels) { |
| 1163 | if (pmap) { |
| 1164 | pmap->reset(fInfo, fPixels, fRowBytes, fColorTable); |
| 1165 | } |
| 1166 | return true; |
| 1167 | } |
| 1168 | return false; |
| 1169 | } |
| 1170 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1171 | /////////////////////////////////////////////////////////////////////////////// |
| 1172 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1173 | #ifdef SK_DEBUG |
| 1174 | void SkImageInfo::validate() const { |
| 1175 | SkASSERT(fWidth >= 0); |
| 1176 | SkASSERT(fHeight >= 0); |
| 1177 | SkASSERT(SkColorTypeIsValid(fColorType)); |
| 1178 | SkASSERT(SkAlphaTypeIsValid(fAlphaType)); |
| 1179 | } |
| 1180 | #endif |