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() |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 36 | : fPixels (nullptr) |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 37 | , fPixelRefOrigin{0, 0} |
| 38 | , fRowBytes (0) |
| 39 | , fFlags (0) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 41 | // copy pixelref, but don't copy lock. |
| 42 | SkBitmap::SkBitmap(const SkBitmap& src) |
| 43 | : fPixelRef (src.fPixelRef) |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 44 | , fPixels (src.fPixels) |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 45 | , fPixelRefOrigin(src.fPixelRefOrigin) |
| 46 | , fInfo (src.fInfo) |
| 47 | , fRowBytes (src.fRowBytes) |
| 48 | , fFlags (src.fFlags) |
| 49 | { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | SkDEBUGCODE(src.validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | SkDEBUGCODE(this->validate();) |
| 52 | } |
| 53 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 54 | // take lock and lockcount from other. |
| 55 | SkBitmap::SkBitmap(SkBitmap&& other) |
| 56 | : fPixelRef (std::move(other.fPixelRef)) |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 57 | , fPixels (other.fPixels) |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 58 | , fPixelRefOrigin (other.fPixelRefOrigin) |
| 59 | , fInfo (std::move(other.fInfo)) |
| 60 | , fRowBytes (other.fRowBytes) |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 61 | , fFlags (other.fFlags) |
| 62 | { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 63 | SkASSERT(!other.fPixelRef); |
| 64 | other.fInfo.reset(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 65 | other.fPixels = nullptr; |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 66 | other.fPixelRefOrigin = SkIPoint{0, 0}; |
| 67 | other.fRowBytes = 0; |
| 68 | other.fFlags = 0; |
| 69 | } |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 70 | |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 71 | SkBitmap::~SkBitmap() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 72 | |
| 73 | SkBitmap& SkBitmap::operator=(const SkBitmap& src) { |
| 74 | if (this != &src) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 75 | fPixelRef = src.fPixelRef; |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 76 | fPixels = src.fPixels; |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 77 | fPixelRefOrigin = src.fPixelRefOrigin; |
| 78 | fInfo = src.fInfo; |
| 79 | fRowBytes = src.fRowBytes; |
| 80 | fFlags = src.fFlags; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 82 | SkDEBUGCODE(this->validate();) |
| 83 | return *this; |
| 84 | } |
| 85 | |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 86 | SkBitmap& SkBitmap::operator=(SkBitmap&& other) { |
| 87 | if (this != &other) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 88 | fPixelRef = std::move(other.fPixelRef); |
| 89 | fInfo = std::move(other.fInfo); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 90 | fPixels = other.fPixels; |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 91 | fPixelRefOrigin = other.fPixelRefOrigin; |
| 92 | fRowBytes = other.fRowBytes; |
| 93 | fFlags = other.fFlags; |
| 94 | SkASSERT(!other.fPixelRef); |
| 95 | other.fInfo.reset(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 96 | other.fPixels = nullptr; |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 97 | other.fPixelRefOrigin = SkIPoint{0, 0}; |
| 98 | other.fRowBytes = 0; |
| 99 | other.fFlags = 0; |
halcanary | 023bda0 | 2015-12-14 10:19:17 -0800 | [diff] [blame] | 100 | } |
| 101 | return *this; |
| 102 | } |
| 103 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 104 | void SkBitmap::swap(SkBitmap& other) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 105 | SkTSwap(*this, other); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 106 | SkDEBUGCODE(this->validate();) |
| 107 | } |
| 108 | |
| 109 | void SkBitmap::reset() { |
| 110 | this->freePixels(); |
msarett | 23c5110 | 2016-05-27 07:39:02 -0700 | [diff] [blame] | 111 | this->fInfo.reset(); |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 112 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 113 | } |
| 114 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 115 | void SkBitmap::getBounds(SkRect* bounds) const { |
| 116 | SkASSERT(bounds); |
| 117 | bounds->set(0, 0, |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 118 | SkIntToScalar(fInfo.width()), SkIntToScalar(fInfo.height())); |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 119 | } |
| 120 | |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 121 | void SkBitmap::getBounds(SkIRect* bounds) const { |
| 122 | SkASSERT(bounds); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 123 | bounds->set(0, 0, fInfo.width(), fInfo.height()); |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 124 | } |
| 125 | |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 126 | SkColorTable* SkBitmap::getColorTable() const { |
| 127 | return fPixelRef ? fPixelRef->colorTable() : nullptr; |
| 128 | } |
| 129 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 130 | /////////////////////////////////////////////////////////////////////////////// |
| 131 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 132 | bool SkBitmap::setInfo(const SkImageInfo& info, size_t rowBytes) { |
| 133 | SkAlphaType newAT = info.alphaType(); |
| 134 | if (!SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &newAT)) { |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 135 | return reset_return_false(this); |
| 136 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 137 | // 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] | 138 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 139 | // require that rowBytes fit in 31bits |
| 140 | int64_t mrb = info.minRowBytes64(); |
| 141 | if ((int32_t)mrb != mrb) { |
| 142 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 143 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 144 | if ((int64_t)rowBytes != (int32_t)rowBytes) { |
| 145 | return reset_return_false(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 146 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 147 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 148 | if (info.width() < 0 || info.height() < 0) { |
| 149 | return reset_return_false(this); |
| 150 | } |
| 151 | |
| 152 | if (kUnknown_SkColorType == info.colorType()) { |
| 153 | rowBytes = 0; |
| 154 | } else if (0 == rowBytes) { |
| 155 | rowBytes = (size_t)mrb; |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 156 | } else if (!info.validRowBytes(rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 157 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | this->freePixels(); |
| 161 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 162 | fInfo = info.makeAlphaType(newAT); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 163 | fRowBytes = SkToU32(rowBytes); |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 164 | SkDEBUGCODE(this->validate();) |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 165 | return true; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 166 | } |
| 167 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 168 | bool SkBitmap::setAlphaType(SkAlphaType newAlphaType) { |
| 169 | if (!SkColorTypeValidateAlphaType(fInfo.colorType(), newAlphaType, &newAlphaType)) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 170 | return false; |
| 171 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 172 | if (fInfo.alphaType() != newAlphaType) { |
| 173 | fInfo = fInfo.makeAlphaType(newAlphaType); |
Ben Wagner | 2fcd4a4 | 2017-04-28 13:06:02 -0400 | [diff] [blame^] | 174 | if (fPixelRef) { |
| 175 | fPixelRef->changeAlphaType(newAlphaType); |
| 176 | } |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 177 | } |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 178 | SkDEBUGCODE(this->validate();) |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 179 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 182 | void SkBitmap::updatePixelsFromRef() { |
| 183 | void* p = nullptr; |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 184 | if (fPixelRef) { |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 185 | // wish we could assert that a pixelref *always* has pixels |
| 186 | p = fPixelRef->pixels(); |
| 187 | if (p) { |
| 188 | SkASSERT(fRowBytes == fPixelRef->rowBytes()); |
| 189 | p = (char*)p |
| 190 | + fPixelRefOrigin.fY * fRowBytes |
| 191 | + fPixelRefOrigin.fX * fInfo.bytesPerPixel(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 192 | } |
| 193 | } |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 194 | fPixels = p; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 195 | } |
| 196 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 197 | void SkBitmap::setPixelRef(sk_sp<SkPixelRef> pr, int dx, int dy) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 198 | #ifdef SK_DEBUG |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 199 | if (pr) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 200 | if (kUnknown_SkColorType != fInfo.colorType()) { |
Ben Wagner | 2fcd4a4 | 2017-04-28 13:06:02 -0400 | [diff] [blame^] | 201 | const SkImageInfo& prInfo = pr->info(); |
| 202 | SkASSERT(fInfo.width() <= prInfo.width()); |
| 203 | SkASSERT(fInfo.height() <= prInfo.height()); |
| 204 | SkASSERT(fInfo.colorType() == prInfo.colorType()); |
| 205 | switch (prInfo.alphaType()) { |
| 206 | case kUnknown_SkAlphaType: |
| 207 | SkASSERT(fInfo.alphaType() == kUnknown_SkAlphaType); |
| 208 | break; |
| 209 | case kOpaque_SkAlphaType: |
| 210 | case kPremul_SkAlphaType: |
| 211 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 212 | fInfo.alphaType() == kPremul_SkAlphaType); |
| 213 | break; |
| 214 | case kUnpremul_SkAlphaType: |
| 215 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 216 | fInfo.alphaType() == kUnpremul_SkAlphaType); |
| 217 | break; |
| 218 | } |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 219 | } |
| 220 | } |
| 221 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 222 | |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 223 | fPixelRef = std::move(pr); |
| 224 | if (fPixelRef) { |
Ben Wagner | 2fcd4a4 | 2017-04-28 13:06:02 -0400 | [diff] [blame^] | 225 | const SkImageInfo& info = fPixelRef->info(); |
| 226 | fPixelRefOrigin.set(SkTPin(dx, 0, info.width()), SkTPin(dy, 0, info.height())); |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 227 | this->updatePixelsFromRef(); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 228 | } else { |
| 229 | // ignore dx,dy if there is no pixelref |
| 230 | fPixelRefOrigin.setZero(); |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 231 | fPixels = nullptr; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 232 | } |
| 233 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | SkDEBUGCODE(this->validate();) |
| 235 | } |
| 236 | |
| 237 | void SkBitmap::setPixels(void* p, SkColorTable* ctable) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 238 | if (nullptr == p) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 239 | this->setPixelRef(nullptr, 0, 0); |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 240 | return; |
| 241 | } |
| 242 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 243 | if (kUnknown_SkColorType == fInfo.colorType()) { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 244 | this->setPixelRef(nullptr, 0, 0); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 245 | return; |
| 246 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 248 | 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] | 249 | if (!fPixelRef) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 250 | return; |
| 251 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 252 | SkDEBUGCODE(this->validate();) |
| 253 | } |
| 254 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 255 | bool SkBitmap::tryAllocPixels(Allocator* allocator, SkColorTable* ctable) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | HeapAllocator stdalloc; |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 257 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 258 | if (nullptr == allocator) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 259 | allocator = &stdalloc; |
| 260 | } |
| 261 | return allocator->allocPixelRef(this, ctable); |
| 262 | } |
| 263 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 264 | /////////////////////////////////////////////////////////////////////////////// |
| 265 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 266 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, size_t rowBytes) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 267 | if (kIndex_8_SkColorType == requestedInfo.colorType()) { |
| 268 | return reset_return_false(this); |
| 269 | } |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 270 | if (!this->setInfo(requestedInfo, rowBytes)) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 271 | return reset_return_false(this); |
| 272 | } |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 273 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 274 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 275 | const SkImageInfo& correctedInfo = this->info(); |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 276 | // setInfo may have computed a valid rowbytes if 0 were passed in |
| 277 | rowBytes = this->rowBytes(); |
| 278 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 279 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(correctedInfo, rowBytes, nullptr); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 280 | if (!pr) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 281 | return reset_return_false(this); |
| 282 | } |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 283 | this->setPixelRef(std::move(pr), 0, 0); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 284 | if (nullptr == this->getPixels()) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 285 | return reset_return_false(this); |
| 286 | } |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 287 | SkDEBUGCODE(this->validate();) |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 288 | return true; |
| 289 | } |
| 290 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 291 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, sk_sp<SkColorTable> ctable, |
| 292 | uint32_t allocFlags) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 293 | if (kIndex_8_SkColorType == requestedInfo.colorType() && nullptr == ctable) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 294 | return reset_return_false(this); |
| 295 | } |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 296 | if (!this->setInfo(requestedInfo)) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 297 | return reset_return_false(this); |
| 298 | } |
| 299 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 300 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 301 | const SkImageInfo& correctedInfo = this->info(); |
| 302 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 303 | sk_sp<SkPixelRef> pr = (allocFlags & kZeroPixels_AllocFlag) ? |
| 304 | SkMallocPixelRef::MakeZeroed(correctedInfo, correctedInfo.minRowBytes(), ctable) : |
| 305 | SkMallocPixelRef::MakeAllocate(correctedInfo, correctedInfo.minRowBytes(), ctable); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 306 | if (!pr) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 307 | return reset_return_false(this); |
| 308 | } |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 309 | this->setPixelRef(std::move(pr), 0, 0); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 310 | if (nullptr == this->getPixels()) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 311 | return reset_return_false(this); |
| 312 | } |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 313 | SkDEBUGCODE(this->validate();) |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 314 | return true; |
| 315 | } |
| 316 | |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 317 | static void invoke_release_proc(void (*proc)(void* pixels, void* ctx), void* pixels, void* ctx) { |
| 318 | if (proc) { |
| 319 | proc(pixels, ctx); |
| 320 | } |
| 321 | } |
| 322 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 323 | bool SkBitmap::installPixels(const SkImageInfo& requestedInfo, void* pixels, size_t rb, |
| 324 | SkColorTable* ct, void (*releaseProc)(void* addr, void* context), |
| 325 | void* context) { |
| 326 | if (!this->setInfo(requestedInfo, rb)) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 327 | invoke_release_proc(releaseProc, pixels, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 328 | this->reset(); |
| 329 | return false; |
| 330 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 331 | if (nullptr == pixels) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 332 | invoke_release_proc(releaseProc, pixels, context); |
| 333 | return true; // we behaved as if they called setInfo() |
| 334 | } |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 335 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 336 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 337 | const SkImageInfo& correctedInfo = this->info(); |
| 338 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 339 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeWithProc(correctedInfo, rb, sk_ref_sp(ct), |
| 340 | pixels, releaseProc, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 341 | if (!pr) { |
| 342 | this->reset(); |
| 343 | return false; |
| 344 | } |
| 345 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 346 | this->setPixelRef(std::move(pr), 0, 0); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 347 | SkDEBUGCODE(this->validate();) |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 348 | return true; |
| 349 | } |
| 350 | |
halcanary | e36ec87 | 2015-12-09 11:36:59 -0800 | [diff] [blame] | 351 | bool SkBitmap::installPixels(const SkPixmap& pixmap) { |
| 352 | return this->installPixels(pixmap.info(), pixmap.writable_addr(), |
| 353 | pixmap.rowBytes(), pixmap.ctable(), |
| 354 | nullptr, nullptr); |
| 355 | } |
| 356 | |
commit-bot@chromium.org | dac5225 | 2014-02-17 21:21:46 +0000 | [diff] [blame] | 357 | bool SkBitmap::installMaskPixels(const SkMask& mask) { |
| 358 | if (SkMask::kA8_Format != mask.fFormat) { |
| 359 | this->reset(); |
| 360 | return false; |
| 361 | } |
| 362 | return this->installPixels(SkImageInfo::MakeA8(mask.fBounds.width(), |
| 363 | mask.fBounds.height()), |
| 364 | mask.fImage, mask.fRowBytes); |
| 365 | } |
| 366 | |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 367 | /////////////////////////////////////////////////////////////////////////////// |
| 368 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 369 | void SkBitmap::freePixels() { |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 370 | fPixelRef = nullptr; |
| 371 | fPixelRefOrigin.setZero(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 372 | fPixels = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 373 | } |
| 374 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 375 | uint32_t SkBitmap::getGenerationID() const { |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 376 | return fPixelRef ? fPixelRef->getGenerationID() : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | void SkBitmap::notifyPixelsChanged() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 380 | SkASSERT(!this->isImmutable()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 381 | if (fPixelRef) { |
| 382 | fPixelRef->notifyPixelsChanged(); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | /////////////////////////////////////////////////////////////////////////////// |
| 387 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 388 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 389 | so that we can freely assign memory allocated by one class to the other. |
| 390 | */ |
| 391 | bool SkBitmap::HeapAllocator::allocPixelRef(SkBitmap* dst, |
| 392 | SkColorTable* ctable) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 393 | const SkImageInfo info = dst->info(); |
| 394 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 395 | // SkDebugf("unsupported config for info %d\n", dst->config()); |
| 396 | return false; |
| 397 | } |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 398 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 399 | 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] | 400 | if (!pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 401 | return false; |
| 402 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 403 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 404 | dst->setPixelRef(std::move(pr), 0, 0); |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 405 | SkDEBUGCODE(dst->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 406 | return true; |
| 407 | } |
| 408 | |
| 409 | /////////////////////////////////////////////////////////////////////////////// |
| 410 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 411 | bool SkBitmap::isImmutable() const { |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 412 | return fPixelRef ? fPixelRef->isImmutable() : false; |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | void SkBitmap::setImmutable() { |
| 416 | if (fPixelRef) { |
| 417 | fPixelRef->setImmutable(); |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 418 | } |
| 419 | } |
| 420 | |
junov@google.com | 4ee7ae5 | 2011-06-30 17:30:49 +0000 | [diff] [blame] | 421 | bool SkBitmap::isVolatile() const { |
| 422 | return (fFlags & kImageIsVolatile_Flag) != 0; |
| 423 | } |
| 424 | |
| 425 | void SkBitmap::setIsVolatile(bool isVolatile) { |
| 426 | if (isVolatile) { |
| 427 | fFlags |= kImageIsVolatile_Flag; |
| 428 | } else { |
| 429 | fFlags &= ~kImageIsVolatile_Flag; |
| 430 | } |
| 431 | } |
| 432 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | void* SkBitmap::getAddr(int x, int y) const { |
| 434 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 435 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 436 | |
| 437 | char* base = (char*)this->getPixels(); |
| 438 | if (base) { |
| 439 | base += y * this->rowBytes(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 440 | switch (this->colorType()) { |
mtklein | 7fd93e3 | 2016-07-26 13:05:30 -0700 | [diff] [blame] | 441 | case kRGBA_F16_SkColorType: |
| 442 | base += x << 3; |
| 443 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 444 | case kRGBA_8888_SkColorType: |
| 445 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 446 | base += x << 2; |
| 447 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 448 | case kARGB_4444_SkColorType: |
| 449 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 450 | base += x << 1; |
| 451 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 452 | case kAlpha_8_SkColorType: |
| 453 | case kIndex_8_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 454 | case kGray_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 455 | base += x; |
| 456 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 457 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 458 | SkDEBUGFAIL("Can't return addr for config"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 459 | base = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 460 | break; |
| 461 | } |
| 462 | } |
| 463 | return base; |
| 464 | } |
| 465 | |
| 466 | /////////////////////////////////////////////////////////////////////////////// |
| 467 | /////////////////////////////////////////////////////////////////////////////// |
| 468 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 469 | void SkBitmap::erase(SkColor c, const SkIRect& area) const { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 470 | SkDEBUGCODE(this->validate();) |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 471 | |
| 472 | switch (fInfo.colorType()) { |
| 473 | case kUnknown_SkColorType: |
| 474 | case kIndex_8_SkColorType: |
| 475 | // TODO: can we ASSERT that we never get here? |
| 476 | return; // can't erase. Should we bzero so the memory is not uninitialized? |
| 477 | default: |
| 478 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 479 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 480 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 481 | SkPixmap result; |
| 482 | if (!this->peekPixels(&result)) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 483 | return; |
| 484 | } |
| 485 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 486 | if (result.erase(c, area)) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 487 | this->notifyPixelsChanged(); |
| 488 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 489 | } |
| 490 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 491 | void SkBitmap::eraseColor(SkColor c) const { |
| 492 | this->erase(c, SkIRect::MakeWH(this->width(), this->height())); |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 493 | } |
| 494 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 495 | ////////////////////////////////////////////////////////////////////////////////////// |
| 496 | ////////////////////////////////////////////////////////////////////////////////////// |
| 497 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 498 | bool SkBitmap::extractSubset(SkBitmap* result, const SkIRect& subset) const { |
| 499 | SkDEBUGCODE(this->validate();) |
| 500 | |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 501 | if (nullptr == result || !fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 502 | return false; // no src pixels |
| 503 | } |
| 504 | |
| 505 | SkIRect srcRect, r; |
| 506 | srcRect.set(0, 0, this->width(), this->height()); |
| 507 | if (!r.intersect(srcRect, subset)) { |
| 508 | return false; // r is empty (i.e. no intersection) |
| 509 | } |
| 510 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 511 | // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have |
| 512 | // exited above. |
| 513 | SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width())); |
| 514 | SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height())); |
| 515 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 516 | SkBitmap dst; |
herb | b5d7468 | 2016-04-21 08:45:39 -0700 | [diff] [blame] | 517 | dst.setInfo(this->info().makeWH(r.width(), r.height()), this->rowBytes()); |
skyostil@google.com | 0eb7576 | 2012-01-16 10:45:53 +0000 | [diff] [blame] | 518 | dst.setIsVolatile(this->isVolatile()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 519 | |
| 520 | if (fPixelRef) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 521 | SkIPoint origin = fPixelRefOrigin; |
| 522 | origin.fX += r.fLeft; |
| 523 | origin.fY += r.fTop; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 524 | // share the pixelref with a custom offset |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 525 | dst.setPixelRef(fPixelRef, origin.x(), origin.y()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 526 | } |
| 527 | SkDEBUGCODE(dst.validate();) |
| 528 | |
| 529 | // we know we're good, so commit to result |
| 530 | result->swap(dst); |
| 531 | return true; |
| 532 | } |
| 533 | |
| 534 | /////////////////////////////////////////////////////////////////////////////// |
| 535 | |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 536 | bool SkBitmap::canCopyTo(SkColorType dstCT) const { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 537 | const SkColorType srcCT = this->colorType(); |
| 538 | |
| 539 | if (srcCT == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | return false; |
| 541 | } |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 542 | if (srcCT == kAlpha_8_SkColorType && dstCT != kAlpha_8_SkColorType) { |
| 543 | return false; // can't convert from alpha to non-alpha |
| 544 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 545 | |
Mike Reed | 22f3482 | 2016-11-28 17:17:38 -0500 | [diff] [blame] | 546 | bool sameConfigs = (srcCT == dstCT); |
| 547 | switch (dstCT) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 548 | case kAlpha_8_SkColorType: |
| 549 | case kRGB_565_SkColorType: |
commit-bot@chromium.org | 60b5dce | 2014-04-22 20:24:33 +0000 | [diff] [blame] | 550 | case kRGBA_8888_SkColorType: |
| 551 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 552 | break; |
Matt Sarett | cb6266b | 2017-01-17 10:48:53 -0500 | [diff] [blame] | 553 | case kGray_8_SkColorType: |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 554 | if (!sameConfigs) { |
| 555 | return false; |
| 556 | } |
| 557 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 558 | case kARGB_4444_SkColorType: |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 559 | return sameConfigs || kN32_SkColorType == srcCT || kIndex_8_SkColorType == srcCT; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 560 | default: |
| 561 | return false; |
| 562 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 563 | return true; |
| 564 | } |
| 565 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 566 | bool SkBitmap::readPixels(const SkImageInfo& requestedDstInfo, void* dstPixels, size_t dstRB, |
| 567 | int x, int y) const { |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 568 | SkPixmap src; |
| 569 | if (!this->peekPixels(&src)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 570 | return false; |
| 571 | } |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 572 | return src.readPixels(requestedDstInfo, dstPixels, dstRB, x, y); |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 573 | } |
| 574 | |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 575 | bool SkBitmap::readPixels(const SkPixmap& dst, int srcX, int srcY) const { |
| 576 | return this->readPixels(dst.info(), dst.writable_addr(), dst.rowBytes(), srcX, srcY); |
| 577 | } |
| 578 | |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 579 | bool SkBitmap::writePixels(const SkPixmap& src, int dstX, int dstY, |
| 580 | SkTransferFunctionBehavior behavior) { |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 581 | if (!SkImageInfoValidConversion(fInfo, src.info())) { |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 582 | return false; |
| 583 | } |
| 584 | |
Matt Sarett | 03dd6d5 | 2017-01-23 12:15:09 -0500 | [diff] [blame] | 585 | SkWritePixelsRec rec(src.info(), src.addr(), src.rowBytes(), dstX, dstY); |
| 586 | if (!rec.trim(fInfo.width(), fInfo.height())) { |
| 587 | return false; |
| 588 | } |
| 589 | |
| 590 | void* dstPixels = this->getAddr(rec.fX, rec.fY); |
| 591 | const SkImageInfo dstInfo = fInfo.makeWH(rec.fInfo.width(), rec.fInfo.height()); |
Matt Sarett | 485c499 | 2017-02-14 14:18:27 -0500 | [diff] [blame] | 592 | SkConvertPixels(dstInfo, dstPixels, this->rowBytes(), rec.fInfo, rec.fPixels, rec.fRowBytes, |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 593 | src.ctable(), behavior); |
Matt Sarett | 8572d85 | 2017-02-14 11:21:02 -0500 | [diff] [blame] | 594 | return true; |
Mike Reed | 68dd8d0 | 2017-01-04 16:34:31 -0500 | [diff] [blame] | 595 | } |
| 596 | |
Matt Sarett | 68b8e3d | 2017-04-28 11:15:22 -0400 | [diff] [blame] | 597 | #ifdef SK_SUPPORT_LEGACY_BITMAP_COPYTO |
| 598 | bool SkBitmap::copyTo(SkBitmap* dst, SkColorType dstColorType) const { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 599 | if (!this->canCopyTo(dstColorType)) { |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 600 | return false; |
| 601 | } |
| 602 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 603 | SkPixmap srcPM; |
| 604 | if (!this->peekPixels(&srcPM)) { |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 605 | return false; |
| 606 | } |
Matt Sarett | d9836f4 | 2017-04-05 15:41:53 -0400 | [diff] [blame] | 607 | |
Matt Sarett | 0122af0 | 2017-04-27 20:08:39 +0000 | [diff] [blame] | 608 | SkBitmap tmpDst; |
Matt Sarett | 68b8e3d | 2017-04-28 11:15:22 -0400 | [diff] [blame] | 609 | SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType); |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 610 | if (!tmpDst.setInfo(dstInfo)) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 611 | return false; |
| 612 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 613 | |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 614 | // allocate colortable if srcConfig == kIndex8_Config |
Hal Canary | 704cd32 | 2016-11-07 14:13:52 -0500 | [diff] [blame] | 615 | sk_sp<SkColorTable> ctable; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 616 | if (dstColorType == kIndex_8_SkColorType) { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 617 | ctable.reset(SkRef(srcPM.ctable())); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 618 | } |
Matt Sarett | 68b8e3d | 2017-04-28 11:15:22 -0400 | [diff] [blame] | 619 | if (!tmpDst.tryAllocPixels(ctable.get())) { |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 620 | return false; |
| 621 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 622 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 623 | SkPixmap dstPM; |
| 624 | if (!tmpDst.peekPixels(&dstPM)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 625 | return false; |
| 626 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 627 | |
Matt Sarett | d9836f4 | 2017-04-05 15:41:53 -0400 | [diff] [blame] | 628 | if (!srcPM.readPixels(dstPM)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 629 | return false; |
| 630 | } |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 631 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 632 | dst->swap(tmpDst); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 633 | return true; |
| 634 | } |
Mike Reed | 42ce38f | 2017-04-06 14:03:25 -0400 | [diff] [blame] | 635 | #endif |
| 636 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 637 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 638 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 639 | static bool GetBitmapAlpha(const SkBitmap& src, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 640 | SkASSERT(alpha != nullptr); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 641 | SkASSERT(alphaRowBytes >= src.width()); |
| 642 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 643 | SkPixmap pmap; |
| 644 | if (!src.peekPixels(&pmap)) { |
lsalzman | a2415ac | 2016-10-11 14:29:12 -0700 | [diff] [blame] | 645 | for (int y = 0; y < src.height(); ++y) { |
| 646 | memset(alpha, 0, src.width()); |
| 647 | alpha += alphaRowBytes; |
| 648 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 649 | return false; |
| 650 | } |
Matt Sarett | 485c499 | 2017-02-14 14:18:27 -0500 | [diff] [blame] | 651 | SkConvertPixels(SkImageInfo::MakeA8(pmap.width(), pmap.height()), alpha, alphaRowBytes, |
Matt Sarett | d2adc66 | 2017-03-27 15:07:35 -0400 | [diff] [blame] | 652 | pmap.info(), pmap.addr(), pmap.rowBytes(), pmap.ctable(), |
| 653 | SkTransferFunctionBehavior::kRespect); |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 654 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 655 | } |
| 656 | |
| 657 | #include "SkPaint.h" |
| 658 | #include "SkMaskFilter.h" |
| 659 | #include "SkMatrix.h" |
| 660 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 661 | bool SkBitmap::extractAlpha(SkBitmap* dst, const SkPaint* paint, |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 662 | Allocator *allocator, SkIPoint* offset) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 663 | SkDEBUGCODE(this->validate();) |
| 664 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 665 | SkBitmap tmpBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 666 | SkMatrix identity; |
| 667 | SkMask srcM, dstM; |
| 668 | |
| 669 | srcM.fBounds.set(0, 0, this->width(), this->height()); |
| 670 | srcM.fRowBytes = SkAlign4(this->width()); |
| 671 | srcM.fFormat = SkMask::kA8_Format; |
| 672 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 673 | SkMaskFilter* filter = paint ? paint->getMaskFilter() : nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 674 | |
| 675 | // compute our (larger?) dst bounds if we have a filter |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 676 | if (filter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 677 | identity.reset(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 678 | if (!filter->filterMask(&dstM, srcM, identity, nullptr)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 679 | goto NO_FILTER_CASE; |
| 680 | } |
| 681 | dstM.fRowBytes = SkAlign4(dstM.fBounds.width()); |
| 682 | } else { |
| 683 | NO_FILTER_CASE: |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 684 | tmpBitmap.setInfo(SkImageInfo::MakeA8(this->width(), this->height()), srcM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 685 | if (!tmpBitmap.tryAllocPixels(allocator, nullptr)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 686 | // Allocation of pixels for alpha bitmap failed. |
| 687 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 688 | tmpBitmap.width(), tmpBitmap.height()); |
| 689 | return false; |
| 690 | } |
| 691 | GetBitmapAlpha(*this, tmpBitmap.getAddr8(0, 0), srcM.fRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 692 | if (offset) { |
| 693 | offset->set(0, 0); |
| 694 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 695 | tmpBitmap.swap(*dst); |
| 696 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 697 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 698 | srcM.fImage = SkMask::AllocImage(srcM.computeImageSize()); |
| 699 | SkAutoMaskFreeImage srcCleanup(srcM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 700 | |
| 701 | GetBitmapAlpha(*this, srcM.fImage, srcM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 702 | if (!filter->filterMask(&dstM, srcM, identity, nullptr)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 703 | goto NO_FILTER_CASE; |
| 704 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 705 | SkAutoMaskFreeImage dstCleanup(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 706 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 707 | tmpBitmap.setInfo(SkImageInfo::MakeA8(dstM.fBounds.width(), dstM.fBounds.height()), |
| 708 | dstM.fRowBytes); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 709 | if (!tmpBitmap.tryAllocPixels(allocator, nullptr)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 710 | // Allocation of pixels for alpha bitmap failed. |
| 711 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 712 | tmpBitmap.width(), tmpBitmap.height()); |
| 713 | return false; |
| 714 | } |
| 715 | memcpy(tmpBitmap.getPixels(), dstM.fImage, dstM.computeImageSize()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 716 | if (offset) { |
| 717 | offset->set(dstM.fBounds.fLeft, dstM.fBounds.fTop); |
| 718 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 719 | SkDEBUGCODE(tmpBitmap.validate();) |
| 720 | |
| 721 | tmpBitmap.swap(*dst); |
| 722 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | /////////////////////////////////////////////////////////////////////////////// |
| 726 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 727 | static void write_raw_pixels(SkWriteBuffer* buffer, const SkPixmap& pmap) { |
| 728 | const SkImageInfo& info = pmap.info(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 729 | const size_t snugRB = info.width() * info.bytesPerPixel(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 730 | const char* src = (const char*)pmap.addr(); |
| 731 | const size_t ramRB = pmap.rowBytes(); |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 732 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 733 | buffer->write32(SkToU32(snugRB)); |
| 734 | info.flatten(*buffer); |
| 735 | |
| 736 | const size_t size = snugRB * info.height(); |
scroggo | 565901d | 2015-12-10 10:44:13 -0800 | [diff] [blame] | 737 | SkAutoTMalloc<char> storage(size); |
| 738 | char* dst = storage.get(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 739 | for (int y = 0; y < info.height(); ++y) { |
| 740 | memcpy(dst, src, snugRB); |
| 741 | dst += snugRB; |
| 742 | src += ramRB; |
| 743 | } |
| 744 | buffer->writeByteArray(storage.get(), size); |
| 745 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 746 | const SkColorTable* ct = pmap.ctable(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 747 | if (kIndex_8_SkColorType == info.colorType() && ct) { |
| 748 | buffer->writeBool(true); |
| 749 | ct->writeToBuffer(*buffer); |
| 750 | } else { |
| 751 | buffer->writeBool(false); |
| 752 | } |
| 753 | } |
| 754 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 755 | void SkBitmap::WriteRawPixels(SkWriteBuffer* buffer, const SkBitmap& bitmap) { |
| 756 | const SkImageInfo info = bitmap.info(); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 757 | if (0 == info.width() || 0 == info.height() || bitmap.isNull()) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 758 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 759 | return; |
| 760 | } |
| 761 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 762 | SkPixmap result; |
| 763 | if (!bitmap.peekPixels(&result)) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 764 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 765 | return; |
| 766 | } |
| 767 | |
Mike Reed | 4edb5d2 | 2017-04-17 11:02:51 -0400 | [diff] [blame] | 768 | write_raw_pixels(buffer, result); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 769 | } |
| 770 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 771 | bool SkBitmap::ReadRawPixels(SkReadBuffer* buffer, SkBitmap* bitmap) { |
| 772 | const size_t snugRB = buffer->readUInt(); |
| 773 | if (0 == snugRB) { // no pixels |
| 774 | return false; |
| 775 | } |
| 776 | |
| 777 | SkImageInfo info; |
| 778 | info.unflatten(*buffer); |
| 779 | |
Robert Phillips | b2cb535 | 2016-12-20 12:44:41 -0500 | [diff] [blame] | 780 | if (info.width() < 0 || info.height() < 0) { |
| 781 | return false; |
| 782 | } |
| 783 | |
mtklein | 58e389b | 2016-07-15 07:00:11 -0700 | [diff] [blame] | 784 | // If there was an error reading "info" or if it is bogus, |
robertphillips | 74139f1 | 2016-06-28 09:04:34 -0700 | [diff] [blame] | 785 | // don't use it to compute minRowBytes() |
| 786 | if (!buffer->validate(SkColorTypeValidateAlphaType(info.colorType(), |
| 787 | info.alphaType()))) { |
sugoi | ca95c19 | 2014-07-08 09:18:48 -0700 | [diff] [blame] | 788 | return false; |
| 789 | } |
| 790 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 791 | const size_t ramRB = info.minRowBytes(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 792 | const int height = SkMax32(info.height(), 0); |
| 793 | const uint64_t snugSize = sk_64_mul(snugRB, height); |
| 794 | const uint64_t ramSize = sk_64_mul(ramRB, height); |
| 795 | static const uint64_t max_size_t = (size_t)(-1); |
| 796 | if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { |
commit-bot@chromium.org | 0585843 | 2014-05-30 01:06:44 +0000 | [diff] [blame] | 797 | return false; |
| 798 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 799 | |
reed | fde0511 | 2016-03-11 13:02:28 -0800 | [diff] [blame] | 800 | sk_sp<SkData> data(SkData::MakeUninitialized(SkToSizeT(ramSize))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 801 | unsigned char* dst = (unsigned char*)data->writable_data(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 802 | buffer->readByteArray(dst, SkToSizeT(snugSize)); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 803 | |
| 804 | if (snugSize != ramSize) { |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 805 | const unsigned char* srcRow = dst + snugRB * (height - 1); |
| 806 | unsigned char* dstRow = dst + ramRB * (height - 1); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 807 | for (int y = height - 1; y >= 1; --y) { |
| 808 | memmove(dstRow, srcRow, snugRB); |
| 809 | srcRow -= snugRB; |
| 810 | dstRow -= ramRB; |
| 811 | } |
| 812 | SkASSERT(srcRow == dstRow); // first row does not need to be moved |
| 813 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 814 | |
Hal Canary | 704cd32 | 2016-11-07 14:13:52 -0500 | [diff] [blame] | 815 | sk_sp<SkColorTable> ctable; |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 816 | if (buffer->readBool()) { |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 817 | ctable = SkColorTable::Create(*buffer); |
reed | b236d1a | 2015-08-28 10:14:18 -0700 | [diff] [blame] | 818 | if (!ctable) { |
| 819 | return false; |
| 820 | } |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 821 | |
reed | b236d1a | 2015-08-28 10:14:18 -0700 | [diff] [blame] | 822 | if (info.isEmpty()) { |
| 823 | // require an empty ctable |
| 824 | if (ctable->count() != 0) { |
| 825 | buffer->validate(false); |
| 826 | return false; |
| 827 | } |
| 828 | } else { |
| 829 | // require a non-empty ctable |
| 830 | if (ctable->count() == 0) { |
| 831 | buffer->validate(false); |
| 832 | return false; |
| 833 | } |
| 834 | unsigned char maxIndex = ctable->count() - 1; |
| 835 | for (uint64_t i = 0; i < ramSize; ++i) { |
| 836 | dst[i] = SkTMin(dst[i], maxIndex); |
| 837 | } |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 838 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 839 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 840 | |
Mike Reed | 6b3155c | 2017-04-03 14:41:44 -0400 | [diff] [blame] | 841 | sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeWithData(info, info.minRowBytes(), |
| 842 | std::move(ctable), std::move(data)); |
| 843 | if (!pr) { |
sugoi | 6af3147 | 2015-01-28 13:15:32 -0800 | [diff] [blame] | 844 | return false; |
| 845 | } |
Ben Wagner | 2fcd4a4 | 2017-04-28 13:06:02 -0400 | [diff] [blame^] | 846 | bitmap->setInfo(pr->info()); |
Hal Canary | 1b3387b | 2016-12-12 13:48:12 -0500 | [diff] [blame] | 847 | bitmap->setPixelRef(std::move(pr), 0, 0); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 848 | return true; |
| 849 | } |
| 850 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 851 | enum { |
| 852 | SERIALIZE_PIXELTYPE_NONE, |
djsollen@google.com | 21830d9 | 2012-08-07 19:49:41 +0000 | [diff] [blame] | 853 | SERIALIZE_PIXELTYPE_REF_DATA |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 854 | }; |
| 855 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 856 | /////////////////////////////////////////////////////////////////////////////// |
| 857 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 858 | #ifdef SK_DEBUG |
| 859 | void SkBitmap::validate() const { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 860 | fInfo.validate(); |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 861 | |
| 862 | // ImageInfo may not require this, but Bitmap ensures that opaque-only |
| 863 | // colorTypes report opaque for their alphatype |
| 864 | if (kRGB_565_SkColorType == fInfo.colorType()) { |
| 865 | SkASSERT(kOpaque_SkAlphaType == fInfo.alphaType()); |
| 866 | } |
| 867 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 868 | SkASSERT(fInfo.validRowBytes(fRowBytes)); |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 869 | uint8_t allFlags = kImageIsVolatile_Flag; |
scroggo@google.com | 8e990eb | 2013-06-14 15:55:56 +0000 | [diff] [blame] | 870 | #ifdef SK_BUILD_FOR_ANDROID |
| 871 | allFlags |= kHasHardwareMipMap_Flag; |
| 872 | #endif |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 873 | SkASSERT((~allFlags & fFlags) == 0); |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 874 | |
| 875 | if (fPixelRef && fPixelRef->pixels()) { |
| 876 | SkASSERT(fPixels); |
| 877 | } else { |
| 878 | SkASSERT(!fPixels); |
| 879 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 880 | |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 881 | if (fPixels) { |
| 882 | SkASSERT(fPixelRef); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 883 | SkASSERT(fPixelRef->rowBytes() == fRowBytes); |
| 884 | SkASSERT(fPixelRefOrigin.fX >= 0); |
| 885 | SkASSERT(fPixelRefOrigin.fY >= 0); |
Ben Wagner | 2fcd4a4 | 2017-04-28 13:06:02 -0400 | [diff] [blame^] | 886 | SkASSERT(fPixelRef->info().width() >= (int)this->width() + fPixelRefOrigin.fX); |
| 887 | SkASSERT(fPixelRef->info().height() >= (int)this->height() + fPixelRefOrigin.fY); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 888 | SkASSERT(fPixelRef->rowBytes() >= fInfo.minRowBytes()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 889 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 890 | } |
| 891 | #endif |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 892 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 893 | #ifndef SK_IGNORE_TO_STRING |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 894 | #include "SkString.h" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 895 | void SkBitmap::toString(SkString* str) const { |
| 896 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 897 | static const char* gColorTypeNames[kLastEnum_SkColorType + 1] = { |
| 898 | "UNKNOWN", "A8", "565", "4444", "RGBA", "BGRA", "INDEX8", |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 899 | }; |
| 900 | |
| 901 | str->appendf("bitmap: ((%d, %d) %s", this->width(), this->height(), |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 902 | gColorTypeNames[this->colorType()]); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 903 | |
| 904 | str->append(" ("); |
| 905 | if (this->isOpaque()) { |
| 906 | str->append("opaque"); |
| 907 | } else { |
| 908 | str->append("transparent"); |
| 909 | } |
| 910 | if (this->isImmutable()) { |
| 911 | str->append(", immutable"); |
| 912 | } else { |
| 913 | str->append(", not-immutable"); |
| 914 | } |
| 915 | str->append(")"); |
| 916 | |
Mike Reed | 96d5b9a | 2017-04-12 22:29:00 -0400 | [diff] [blame] | 917 | str->appendf(" pixelref:%p", this->pixelRef()); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 918 | str->append(")"); |
| 919 | } |
| 920 | #endif |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 921 | |
| 922 | /////////////////////////////////////////////////////////////////////////////// |
| 923 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 924 | bool SkBitmap::peekPixels(SkPixmap* pmap) const { |
| 925 | if (fPixels) { |
| 926 | if (pmap) { |
Mike Reed | b712089 | 2017-04-14 17:16:36 -0400 | [diff] [blame] | 927 | pmap->reset(fInfo, fPixels, fRowBytes, this->getColorTable()); |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 928 | } |
| 929 | return true; |
| 930 | } |
| 931 | return false; |
| 932 | } |
| 933 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 934 | /////////////////////////////////////////////////////////////////////////////// |
| 935 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 936 | #ifdef SK_DEBUG |
| 937 | void SkImageInfo::validate() const { |
| 938 | SkASSERT(fWidth >= 0); |
| 939 | SkASSERT(fHeight >= 0); |
| 940 | SkASSERT(SkColorTypeIsValid(fColorType)); |
| 941 | SkASSERT(SkAlphaTypeIsValid(fAlphaType)); |
| 942 | } |
| 943 | #endif |