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 | |
mtklein | 1b24933 | 2015-07-07 12:21:21 -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" |
bungeman | 7403d87 | 2015-08-04 14:56:53 -0700 | [diff] [blame^] | 11 | #include "SkData.h" |
| 12 | #include "SkFilterQuality.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkMallocPixelRef.h" |
| 14 | #include "SkMask.h" |
bungeman | 7403d87 | 2015-08-04 14:56:53 -0700 | [diff] [blame^] | 15 | #include "SkMath.h" |
jvanverth | 02802f6 | 2015-07-02 06:42:49 -0700 | [diff] [blame] | 16 | #include "SkPixelRef.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 17 | #include "SkReadBuffer.h" |
bungeman | 7403d87 | 2015-08-04 14:56:53 -0700 | [diff] [blame^] | 18 | #include "SkRect.h" |
| 19 | #include "SkScalar.h" |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 20 | #include "SkUnPreMultiply.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 21 | #include "SkWriteBuffer.h" |
bungeman | 7403d87 | 2015-08-04 14:56:53 -0700 | [diff] [blame^] | 22 | |
| 23 | #include <string.h> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 25 | static bool reset_return_false(SkBitmap* bm) { |
| 26 | bm->reset(); |
| 27 | return false; |
| 28 | } |
| 29 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 30 | SkBitmap::SkBitmap() { |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 31 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | } |
| 33 | |
| 34 | SkBitmap::SkBitmap(const SkBitmap& src) { |
| 35 | SkDEBUGCODE(src.validate();) |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 36 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | *this = src; |
| 38 | SkDEBUGCODE(this->validate();) |
| 39 | } |
| 40 | |
| 41 | SkBitmap::~SkBitmap() { |
| 42 | SkDEBUGCODE(this->validate();) |
| 43 | this->freePixels(); |
| 44 | } |
| 45 | |
| 46 | SkBitmap& SkBitmap::operator=(const SkBitmap& src) { |
| 47 | if (this != &src) { |
| 48 | this->freePixels(); |
| 49 | memcpy(this, &src, sizeof(src)); |
| 50 | |
| 51 | // inc src reference counts |
reed@android.com | 83f7bc3 | 2009-07-17 02:42:41 +0000 | [diff] [blame] | 52 | SkSafeRef(src.fPixelRef); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | |
| 54 | // we reset our locks if we get blown away |
| 55 | fPixelLockCount = 0; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 56 | |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 57 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 58 | // ignore the values from the memcpy |
| 59 | fPixels = NULL; |
| 60 | fColorTable = NULL; |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 61 | // Note that what to for genID is somewhat arbitrary. We have no |
| 62 | // way to track changes to raw pixels across multiple SkBitmaps. |
| 63 | // Would benefit from an SkRawPixelRef type created by |
| 64 | // setPixels. |
| 65 | // Just leave the memcpy'ed one but they'll get out of sync |
| 66 | // as soon either is modified. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 67 | } |
| 68 | } |
| 69 | |
| 70 | SkDEBUGCODE(this->validate();) |
| 71 | return *this; |
| 72 | } |
| 73 | |
| 74 | void SkBitmap::swap(SkBitmap& other) { |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 75 | SkTSwap(fColorTable, other.fColorTable); |
| 76 | SkTSwap(fPixelRef, other.fPixelRef); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 77 | SkTSwap(fPixelRefOrigin, other.fPixelRefOrigin); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 78 | SkTSwap(fPixelLockCount, other.fPixelLockCount); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 79 | SkTSwap(fPixels, other.fPixels); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 80 | SkTSwap(fInfo, other.fInfo); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 81 | SkTSwap(fRowBytes, other.fRowBytes); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 82 | SkTSwap(fFlags, other.fFlags); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | |
| 84 | SkDEBUGCODE(this->validate();) |
| 85 | } |
| 86 | |
| 87 | void SkBitmap::reset() { |
| 88 | this->freePixels(); |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 89 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 90 | } |
| 91 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 92 | void SkBitmap::getBounds(SkRect* bounds) const { |
| 93 | SkASSERT(bounds); |
| 94 | bounds->set(0, 0, |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 95 | SkIntToScalar(fInfo.width()), SkIntToScalar(fInfo.height())); |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 96 | } |
| 97 | |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 98 | void SkBitmap::getBounds(SkIRect* bounds) const { |
| 99 | SkASSERT(bounds); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 100 | bounds->set(0, 0, fInfo.width(), fInfo.height()); |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 101 | } |
| 102 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 103 | /////////////////////////////////////////////////////////////////////////////// |
| 104 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 105 | bool SkBitmap::setInfo(const SkImageInfo& info, size_t rowBytes) { |
| 106 | SkAlphaType newAT = info.alphaType(); |
| 107 | if (!SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &newAT)) { |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 108 | return reset_return_false(this); |
| 109 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 110 | // 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] | 111 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 112 | // require that rowBytes fit in 31bits |
| 113 | int64_t mrb = info.minRowBytes64(); |
| 114 | if ((int32_t)mrb != mrb) { |
| 115 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 116 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 117 | if ((int64_t)rowBytes != (int32_t)rowBytes) { |
| 118 | return reset_return_false(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 119 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 120 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 121 | if (info.width() < 0 || info.height() < 0) { |
| 122 | return reset_return_false(this); |
| 123 | } |
| 124 | |
| 125 | if (kUnknown_SkColorType == info.colorType()) { |
| 126 | rowBytes = 0; |
| 127 | } else if (0 == rowBytes) { |
| 128 | rowBytes = (size_t)mrb; |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 129 | } else if (!info.validRowBytes(rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 130 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | this->freePixels(); |
| 134 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 135 | fInfo = info.makeAlphaType(newAT); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 136 | fRowBytes = SkToU32(rowBytes); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 137 | return true; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 138 | } |
| 139 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 140 | bool SkBitmap::setAlphaType(SkAlphaType newAlphaType) { |
| 141 | if (!SkColorTypeValidateAlphaType(fInfo.colorType(), newAlphaType, &newAlphaType)) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 142 | return false; |
| 143 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 144 | if (fInfo.alphaType() != newAlphaType) { |
| 145 | fInfo = fInfo.makeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 146 | if (fPixelRef) { |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 147 | fPixelRef->changeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 148 | } |
| 149 | } |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 150 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | void SkBitmap::updatePixelsFromRef() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 154 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | if (fPixelLockCount > 0) { |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 156 | SkASSERT(fPixelRef->isLocked()); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 157 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 158 | void* p = fPixelRef->pixels(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 159 | if (p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 160 | p = (char*)p |
reed@google.com | 303c475 | 2014-01-09 20:00:14 +0000 | [diff] [blame] | 161 | + fPixelRefOrigin.fY * fRowBytes |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 162 | + fPixelRefOrigin.fX * fInfo.bytesPerPixel(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | } |
| 164 | fPixels = p; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 165 | fColorTable = fPixelRef->colorTable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 166 | } else { |
| 167 | SkASSERT(0 == fPixelLockCount); |
| 168 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 169 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 170 | } |
| 171 | } |
| 172 | } |
| 173 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 174 | SkPixelRef* SkBitmap::setPixelRef(SkPixelRef* pr, int dx, int dy) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 175 | #ifdef SK_DEBUG |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 176 | if (pr) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 177 | if (kUnknown_SkColorType != fInfo.colorType()) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 178 | const SkImageInfo& prInfo = pr->info(); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 179 | SkASSERT(fInfo.width() <= prInfo.width()); |
| 180 | SkASSERT(fInfo.height() <= prInfo.height()); |
| 181 | SkASSERT(fInfo.colorType() == prInfo.colorType()); |
| 182 | switch (prInfo.alphaType()) { |
reed | 4497748 | 2015-02-27 10:23:00 -0800 | [diff] [blame] | 183 | case kUnknown_SkAlphaType: |
| 184 | SkASSERT(fInfo.alphaType() == kUnknown_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 185 | break; |
| 186 | case kOpaque_SkAlphaType: |
| 187 | case kPremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 188 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 189 | fInfo.alphaType() == kPremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 190 | break; |
| 191 | case kUnpremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 192 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 193 | fInfo.alphaType() == kUnpremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 194 | break; |
| 195 | } |
| 196 | } |
| 197 | } |
| 198 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 200 | if (pr) { |
| 201 | const SkImageInfo& info = pr->info(); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 202 | fPixelRefOrigin.set(SkPin32(dx, 0, info.width()), SkPin32(dy, 0, info.height())); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 203 | } else { |
| 204 | // ignore dx,dy if there is no pixelref |
| 205 | fPixelRefOrigin.setZero(); |
| 206 | } |
| 207 | |
| 208 | if (fPixelRef != pr) { |
piotaixr | 0eb02a6 | 2014-06-16 11:50:49 -0700 | [diff] [blame] | 209 | this->freePixels(); |
| 210 | SkASSERT(NULL == fPixelRef); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 211 | |
piotaixr | 0eb02a6 | 2014-06-16 11:50:49 -0700 | [diff] [blame] | 212 | SkSafeRef(pr); |
| 213 | fPixelRef = pr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | this->updatePixelsFromRef(); |
| 215 | } |
| 216 | |
| 217 | SkDEBUGCODE(this->validate();) |
| 218 | return pr; |
| 219 | } |
| 220 | |
| 221 | void SkBitmap::lockPixels() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 222 | if (fPixelRef && 0 == sk_atomic_inc(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 223 | fPixelRef->lockPixels(); |
| 224 | this->updatePixelsFromRef(); |
| 225 | } |
| 226 | SkDEBUGCODE(this->validate();) |
| 227 | } |
| 228 | |
| 229 | void SkBitmap::unlockPixels() const { |
| 230 | SkASSERT(NULL == fPixelRef || fPixelLockCount > 0); |
| 231 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 232 | if (fPixelRef && 1 == sk_atomic_dec(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | fPixelRef->unlockPixels(); |
| 234 | this->updatePixelsFromRef(); |
| 235 | } |
| 236 | SkDEBUGCODE(this->validate();) |
| 237 | } |
| 238 | |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 239 | bool SkBitmap::lockPixelsAreWritable() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 240 | return (fPixelRef) ? fPixelRef->lockPixelsAreWritable() : false; |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 241 | } |
| 242 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 243 | void SkBitmap::setPixels(void* p, SkColorTable* ctable) { |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 244 | if (NULL == p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 245 | this->setPixelRef(NULL); |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 246 | return; |
| 247 | } |
| 248 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 249 | if (kUnknown_SkColorType == fInfo.colorType()) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 250 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 251 | return; |
| 252 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 253 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 254 | SkPixelRef* pr = SkMallocPixelRef::NewDirect(fInfo, p, fRowBytes, ctable); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 255 | if (NULL == pr) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 256 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 257 | return; |
| 258 | } |
| 259 | |
| 260 | this->setPixelRef(pr)->unref(); |
| 261 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 262 | // since we're already allocated, we lockPixels right away |
| 263 | this->lockPixels(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | SkDEBUGCODE(this->validate();) |
| 265 | } |
| 266 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 267 | bool SkBitmap::tryAllocPixels(Allocator* allocator, SkColorTable* ctable) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 268 | HeapAllocator stdalloc; |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 269 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | if (NULL == allocator) { |
| 271 | allocator = &stdalloc; |
| 272 | } |
| 273 | return allocator->allocPixelRef(this, ctable); |
| 274 | } |
| 275 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 276 | /////////////////////////////////////////////////////////////////////////////// |
| 277 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 278 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, size_t rowBytes) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 279 | if (kIndex_8_SkColorType == requestedInfo.colorType()) { |
| 280 | return reset_return_false(this); |
| 281 | } |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 282 | if (!this->setInfo(requestedInfo, rowBytes)) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 283 | return reset_return_false(this); |
| 284 | } |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 285 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 286 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 287 | const SkImageInfo& correctedInfo = this->info(); |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 288 | // setInfo may have computed a valid rowbytes if 0 were passed in |
| 289 | rowBytes = this->rowBytes(); |
| 290 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 291 | SkMallocPixelRef::PRFactory defaultFactory; |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 292 | |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 293 | SkPixelRef* pr = defaultFactory.create(correctedInfo, rowBytes, NULL); |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 294 | if (NULL == pr) { |
| 295 | return reset_return_false(this); |
| 296 | } |
| 297 | this->setPixelRef(pr)->unref(); |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 298 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 299 | // TODO: lockPixels could/should return bool or void*/NULL |
| 300 | this->lockPixels(); |
| 301 | if (NULL == this->getPixels()) { |
| 302 | return reset_return_false(this); |
| 303 | } |
| 304 | return true; |
| 305 | } |
| 306 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 307 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, SkPixelRefFactory* factory, |
| 308 | SkColorTable* ctable) { |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 309 | if (kIndex_8_SkColorType == requestedInfo.colorType() && NULL == ctable) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 310 | return reset_return_false(this); |
| 311 | } |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 312 | if (!this->setInfo(requestedInfo)) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 313 | return reset_return_false(this); |
| 314 | } |
| 315 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 316 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 317 | const SkImageInfo& correctedInfo = this->info(); |
| 318 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 319 | SkMallocPixelRef::PRFactory defaultFactory; |
| 320 | if (NULL == factory) { |
| 321 | factory = &defaultFactory; |
| 322 | } |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 323 | |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 324 | SkPixelRef* pr = factory->create(correctedInfo, correctedInfo.minRowBytes(), ctable); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 325 | if (NULL == pr) { |
| 326 | return reset_return_false(this); |
| 327 | } |
| 328 | this->setPixelRef(pr)->unref(); |
| 329 | |
| 330 | // TODO: lockPixels could/should return bool or void*/NULL |
| 331 | this->lockPixels(); |
| 332 | if (NULL == this->getPixels()) { |
| 333 | return reset_return_false(this); |
| 334 | } |
| 335 | return true; |
| 336 | } |
| 337 | |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 338 | static void invoke_release_proc(void (*proc)(void* pixels, void* ctx), void* pixels, void* ctx) { |
| 339 | if (proc) { |
| 340 | proc(pixels, ctx); |
| 341 | } |
| 342 | } |
| 343 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 344 | bool SkBitmap::installPixels(const SkImageInfo& requestedInfo, void* pixels, size_t rb, |
| 345 | SkColorTable* ct, void (*releaseProc)(void* addr, void* context), |
| 346 | void* context) { |
| 347 | if (!this->setInfo(requestedInfo, rb)) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 348 | invoke_release_proc(releaseProc, pixels, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 349 | this->reset(); |
| 350 | return false; |
| 351 | } |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 352 | if (NULL == pixels) { |
| 353 | invoke_release_proc(releaseProc, pixels, context); |
| 354 | return true; // we behaved as if they called setInfo() |
| 355 | } |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 356 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 357 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 358 | const SkImageInfo& correctedInfo = this->info(); |
| 359 | |
| 360 | SkPixelRef* pr = SkMallocPixelRef::NewWithProc(correctedInfo, rb, ct, pixels, releaseProc, |
| 361 | context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 362 | if (!pr) { |
| 363 | this->reset(); |
| 364 | return false; |
| 365 | } |
| 366 | |
| 367 | this->setPixelRef(pr)->unref(); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 368 | |
| 369 | // since we're already allocated, we lockPixels right away |
| 370 | this->lockPixels(); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 371 | SkDEBUGCODE(this->validate();) |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 372 | return true; |
| 373 | } |
| 374 | |
commit-bot@chromium.org | dac5225 | 2014-02-17 21:21:46 +0000 | [diff] [blame] | 375 | bool SkBitmap::installMaskPixels(const SkMask& mask) { |
| 376 | if (SkMask::kA8_Format != mask.fFormat) { |
| 377 | this->reset(); |
| 378 | return false; |
| 379 | } |
| 380 | return this->installPixels(SkImageInfo::MakeA8(mask.fBounds.width(), |
| 381 | mask.fBounds.height()), |
| 382 | mask.fImage, mask.fRowBytes); |
| 383 | } |
| 384 | |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 385 | /////////////////////////////////////////////////////////////////////////////// |
| 386 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 387 | void SkBitmap::freePixels() { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 388 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 389 | if (fPixelLockCount > 0) { |
| 390 | fPixelRef->unlockPixels(); |
| 391 | } |
| 392 | fPixelRef->unref(); |
| 393 | fPixelRef = NULL; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 394 | fPixelRefOrigin.setZero(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 395 | } |
| 396 | fPixelLockCount = 0; |
| 397 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 398 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 399 | } |
| 400 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 401 | uint32_t SkBitmap::getGenerationID() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 402 | return (fPixelRef) ? fPixelRef->getGenerationID() : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | void SkBitmap::notifyPixelsChanged() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 406 | SkASSERT(!this->isImmutable()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 407 | if (fPixelRef) { |
| 408 | fPixelRef->notifyPixelsChanged(); |
| 409 | } |
| 410 | } |
| 411 | |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 412 | GrTexture* SkBitmap::getTexture() const { |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 413 | return fPixelRef ? fPixelRef->getTexture() : NULL; |
| 414 | } |
| 415 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 416 | /////////////////////////////////////////////////////////////////////////////// |
| 417 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 418 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 419 | so that we can freely assign memory allocated by one class to the other. |
| 420 | */ |
| 421 | bool SkBitmap::HeapAllocator::allocPixelRef(SkBitmap* dst, |
| 422 | SkColorTable* ctable) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 423 | const SkImageInfo info = dst->info(); |
| 424 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 425 | // SkDebugf("unsupported config for info %d\n", dst->config()); |
| 426 | return false; |
| 427 | } |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 428 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 429 | SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, dst->rowBytes(), ctable); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 430 | if (NULL == pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 431 | return false; |
| 432 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 433 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 434 | dst->setPixelRef(pr)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 435 | // since we're already allocated, we lockPixels right away |
| 436 | dst->lockPixels(); |
| 437 | return true; |
| 438 | } |
| 439 | |
| 440 | /////////////////////////////////////////////////////////////////////////////// |
| 441 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 442 | static bool copy_pixels_to(const SkPixmap& src, void* const dst, size_t dstSize, |
| 443 | size_t dstRowBytes, bool preserveDstPad) { |
| 444 | const SkImageInfo& info = src.info(); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 445 | |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 446 | if (0 == dstRowBytes) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 447 | dstRowBytes = src.rowBytes(); |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 448 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 449 | if (dstRowBytes < info.minRowBytes()) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 450 | return false; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 451 | } |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 452 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 453 | if (!preserveDstPad && static_cast<uint32_t>(dstRowBytes) == src.rowBytes()) { |
| 454 | size_t safeSize = src.getSafeSize(); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 455 | if (safeSize > dstSize || safeSize == 0) |
| 456 | return false; |
| 457 | else { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 458 | // This implementation will write bytes beyond the end of each row, |
| 459 | // excluding the last row, if the bitmap's stride is greater than |
| 460 | // strictly required by the current config. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 461 | memcpy(dst, src.addr(), safeSize); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 462 | return true; |
| 463 | } |
| 464 | } else { |
| 465 | // If destination has different stride than us, then copy line by line. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 466 | if (info.getSafeSize(dstRowBytes) > dstSize) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 467 | return false; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 468 | } else { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 469 | // Just copy what we need on each line. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 470 | size_t rowBytes = info.minRowBytes(); |
| 471 | const uint8_t* srcP = reinterpret_cast<const uint8_t*>(src.addr()); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 472 | uint8_t* dstP = reinterpret_cast<uint8_t*>(dst); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 473 | for (int row = 0; row < info.height(); ++row) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 474 | memcpy(dstP, srcP, rowBytes); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 475 | srcP += src.rowBytes(); |
| 476 | dstP += dstRowBytes; |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | return true; |
| 480 | } |
| 481 | } |
| 482 | } |
| 483 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 484 | bool SkBitmap::copyPixelsTo(void* dst, size_t dstSize, size_t dstRB, bool preserveDstPad) const { |
| 485 | if (NULL == dst) { |
| 486 | return false; |
| 487 | } |
| 488 | SkAutoPixmapUnlock result; |
| 489 | if (!this->requestLock(&result)) { |
| 490 | return false; |
| 491 | } |
| 492 | return copy_pixels_to(result.pixmap(), dst, dstSize, dstRB, preserveDstPad); |
| 493 | } |
| 494 | |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 495 | /////////////////////////////////////////////////////////////////////////////// |
| 496 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 497 | bool SkBitmap::isImmutable() const { |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 498 | return fPixelRef ? fPixelRef->isImmutable() : false; |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 499 | } |
| 500 | |
| 501 | void SkBitmap::setImmutable() { |
| 502 | if (fPixelRef) { |
| 503 | fPixelRef->setImmutable(); |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 504 | } |
| 505 | } |
| 506 | |
junov@google.com | 4ee7ae5 | 2011-06-30 17:30:49 +0000 | [diff] [blame] | 507 | bool SkBitmap::isVolatile() const { |
| 508 | return (fFlags & kImageIsVolatile_Flag) != 0; |
| 509 | } |
| 510 | |
| 511 | void SkBitmap::setIsVolatile(bool isVolatile) { |
| 512 | if (isVolatile) { |
| 513 | fFlags |= kImageIsVolatile_Flag; |
| 514 | } else { |
| 515 | fFlags &= ~kImageIsVolatile_Flag; |
| 516 | } |
| 517 | } |
| 518 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 519 | void* SkBitmap::getAddr(int x, int y) const { |
| 520 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 521 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 522 | |
| 523 | char* base = (char*)this->getPixels(); |
| 524 | if (base) { |
| 525 | base += y * this->rowBytes(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 526 | switch (this->colorType()) { |
| 527 | case kRGBA_8888_SkColorType: |
| 528 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 529 | base += x << 2; |
| 530 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 531 | case kARGB_4444_SkColorType: |
| 532 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 533 | base += x << 1; |
| 534 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 535 | case kAlpha_8_SkColorType: |
| 536 | case kIndex_8_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 537 | case kGray_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 538 | base += x; |
| 539 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 541 | SkDEBUGFAIL("Can't return addr for config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 542 | base = NULL; |
| 543 | break; |
| 544 | } |
| 545 | } |
| 546 | return base; |
| 547 | } |
| 548 | |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 549 | SkColor SkBitmap::getColor(int x, int y) const { |
| 550 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 551 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 552 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 553 | switch (this->colorType()) { |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 554 | case kGray_8_SkColorType: { |
| 555 | uint8_t* addr = this->getAddr8(x, y); |
| 556 | return SkColorSetRGB(*addr, *addr, *addr); |
| 557 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 558 | case kAlpha_8_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 559 | uint8_t* addr = this->getAddr8(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 560 | return SkColorSetA(0, addr[0]); |
| 561 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 562 | case kIndex_8_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 563 | SkPMColor c = this->getIndex8Color(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 564 | return SkUnPreMultiply::PMColorToColor(c); |
| 565 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 566 | case kRGB_565_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 567 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 568 | return SkPixel16ToColor(addr[0]); |
| 569 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 570 | case kARGB_4444_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 571 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 572 | SkPMColor c = SkPixel4444ToPixel32(addr[0]); |
| 573 | return SkUnPreMultiply::PMColorToColor(c); |
| 574 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 575 | case kBGRA_8888_SkColorType: |
| 576 | case kRGBA_8888_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 577 | uint32_t* addr = this->getAddr32(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 578 | return SkUnPreMultiply::PMColorToColor(addr[0]); |
| 579 | } |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 580 | default: |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 581 | SkASSERT(false); |
| 582 | return 0; |
| 583 | } |
| 584 | SkASSERT(false); // Not reached. |
| 585 | return 0; |
| 586 | } |
| 587 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 588 | static bool compute_is_opaque(const SkPixmap& pmap) { |
| 589 | const int height = pmap.height(); |
| 590 | const int width = pmap.width(); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 591 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 592 | switch (pmap.colorType()) { |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 593 | case kAlpha_8_SkColorType: { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 594 | unsigned a = 0xFF; |
| 595 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 596 | const uint8_t* row = pmap.addr8(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 597 | for (int x = 0; x < width; ++x) { |
| 598 | a &= row[x]; |
| 599 | } |
| 600 | if (0xFF != a) { |
| 601 | return false; |
| 602 | } |
| 603 | } |
| 604 | return true; |
| 605 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 606 | case kIndex_8_SkColorType: { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 607 | const SkColorTable* ctable = pmap.ctable(); |
| 608 | if (NULL == ctable) { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 609 | return false; |
| 610 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 611 | const SkPMColor* table = ctable->readColors(); |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 612 | SkPMColor c = (SkPMColor)~0; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 613 | for (int i = ctable->count() - 1; i >= 0; --i) { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 614 | c &= table[i]; |
| 615 | } |
| 616 | return 0xFF == SkGetPackedA32(c); |
| 617 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 618 | case kRGB_565_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 619 | case kGray_8_SkColorType: |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 620 | return true; |
| 621 | break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 622 | case kARGB_4444_SkColorType: { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 623 | unsigned c = 0xFFFF; |
| 624 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 625 | const SkPMColor16* row = pmap.addr16(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 626 | for (int x = 0; x < width; ++x) { |
| 627 | c &= row[x]; |
| 628 | } |
| 629 | if (0xF != SkGetPackedA4444(c)) { |
| 630 | return false; |
| 631 | } |
| 632 | } |
| 633 | return true; |
| 634 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 635 | case kBGRA_8888_SkColorType: |
| 636 | case kRGBA_8888_SkColorType: { |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 637 | SkPMColor c = (SkPMColor)~0; |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 638 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 639 | const SkPMColor* row = pmap.addr32(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 640 | for (int x = 0; x < width; ++x) { |
| 641 | c &= row[x]; |
| 642 | } |
| 643 | if (0xFF != SkGetPackedA32(c)) { |
| 644 | return false; |
| 645 | } |
| 646 | } |
| 647 | return true; |
| 648 | } |
| 649 | default: |
| 650 | break; |
| 651 | } |
| 652 | return false; |
| 653 | } |
| 654 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 655 | bool SkBitmap::ComputeIsOpaque(const SkBitmap& bm) { |
| 656 | SkAutoPixmapUnlock result; |
| 657 | if (!bm.requestLock(&result)) { |
| 658 | return false; |
| 659 | } |
| 660 | return compute_is_opaque(result.pixmap()); |
| 661 | } |
| 662 | |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 663 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 664 | /////////////////////////////////////////////////////////////////////////////// |
| 665 | /////////////////////////////////////////////////////////////////////////////// |
| 666 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 667 | void SkBitmap::erase(SkColor c, const SkIRect& area) const { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 668 | SkDEBUGCODE(this->validate();) |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 669 | |
| 670 | switch (fInfo.colorType()) { |
| 671 | case kUnknown_SkColorType: |
| 672 | case kIndex_8_SkColorType: |
| 673 | // TODO: can we ASSERT that we never get here? |
| 674 | return; // can't erase. Should we bzero so the memory is not uninitialized? |
| 675 | default: |
| 676 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 677 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 678 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 679 | SkAutoPixmapUnlock result; |
| 680 | if (!this->requestLock(&result)) { |
| 681 | return; |
| 682 | } |
| 683 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 684 | if (result.pixmap().erase(c, area)) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 685 | this->notifyPixelsChanged(); |
| 686 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 687 | } |
| 688 | |
reed | 7aefe03 | 2015-06-08 10:22:22 -0700 | [diff] [blame] | 689 | void SkBitmap::eraseColor(SkColor c) const { |
| 690 | this->erase(c, SkIRect::MakeWH(this->width(), this->height())); |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 691 | } |
| 692 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 693 | ////////////////////////////////////////////////////////////////////////////////////// |
| 694 | ////////////////////////////////////////////////////////////////////////////////////// |
| 695 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 696 | bool SkBitmap::extractSubset(SkBitmap* result, const SkIRect& subset) const { |
| 697 | SkDEBUGCODE(this->validate();) |
| 698 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 699 | if (NULL == result || NULL == fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 700 | return false; // no src pixels |
| 701 | } |
| 702 | |
| 703 | SkIRect srcRect, r; |
| 704 | srcRect.set(0, 0, this->width(), this->height()); |
| 705 | if (!r.intersect(srcRect, subset)) { |
| 706 | return false; // r is empty (i.e. no intersection) |
| 707 | } |
| 708 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 709 | if (fPixelRef->getTexture() != NULL) { |
| 710 | // Do a deep copy |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 711 | SkPixelRef* pixelRef = fPixelRef->deepCopy(this->colorType(), this->profileType(), &subset); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 712 | if (pixelRef != NULL) { |
| 713 | SkBitmap dst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 714 | dst.setInfo(SkImageInfo::Make(subset.width(), subset.height(), |
| 715 | this->colorType(), this->alphaType())); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 716 | dst.setIsVolatile(this->isVolatile()); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 717 | dst.setPixelRef(pixelRef)->unref(); |
| 718 | SkDEBUGCODE(dst.validate()); |
| 719 | result->swap(dst); |
| 720 | return true; |
| 721 | } |
| 722 | } |
| 723 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 724 | // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have |
| 725 | // exited above. |
| 726 | SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width())); |
| 727 | SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height())); |
| 728 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 729 | SkBitmap dst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 730 | dst.setInfo(SkImageInfo::Make(r.width(), r.height(), this->colorType(), this->alphaType()), |
| 731 | this->rowBytes()); |
skyostil@google.com | 0eb7576 | 2012-01-16 10:45:53 +0000 | [diff] [blame] | 732 | dst.setIsVolatile(this->isVolatile()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 733 | |
| 734 | if (fPixelRef) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 735 | SkIPoint origin = fPixelRefOrigin; |
| 736 | origin.fX += r.fLeft; |
| 737 | origin.fY += r.fTop; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 738 | // share the pixelref with a custom offset |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 739 | dst.setPixelRef(fPixelRef, origin); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 740 | } |
| 741 | SkDEBUGCODE(dst.validate();) |
| 742 | |
| 743 | // we know we're good, so commit to result |
| 744 | result->swap(dst); |
| 745 | return true; |
| 746 | } |
| 747 | |
| 748 | /////////////////////////////////////////////////////////////////////////////// |
| 749 | |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 750 | bool SkBitmap::canCopyTo(SkColorType dstColorType) const { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 751 | const SkColorType srcCT = this->colorType(); |
| 752 | |
| 753 | if (srcCT == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 754 | return false; |
| 755 | } |
| 756 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 757 | bool sameConfigs = (srcCT == dstColorType); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 758 | switch (dstColorType) { |
| 759 | case kAlpha_8_SkColorType: |
| 760 | case kRGB_565_SkColorType: |
commit-bot@chromium.org | 60b5dce | 2014-04-22 20:24:33 +0000 | [diff] [blame] | 761 | case kRGBA_8888_SkColorType: |
| 762 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 763 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 764 | case kIndex_8_SkColorType: |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 765 | if (!sameConfigs) { |
| 766 | return false; |
| 767 | } |
| 768 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 769 | case kARGB_4444_SkColorType: |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 770 | return sameConfigs || kN32_SkColorType == srcCT || kIndex_8_SkColorType == srcCT; |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 771 | case kGray_8_SkColorType: |
| 772 | switch (srcCT) { |
| 773 | case kGray_8_SkColorType: |
| 774 | case kRGBA_8888_SkColorType: |
| 775 | case kBGRA_8888_SkColorType: |
| 776 | return true; |
| 777 | default: |
| 778 | break; |
| 779 | } |
| 780 | return false; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 781 | default: |
| 782 | return false; |
| 783 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 784 | return true; |
| 785 | } |
| 786 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 787 | bool SkBitmap::readPixels(const SkImageInfo& requestedDstInfo, void* dstPixels, size_t dstRB, |
| 788 | int x, int y) const { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 789 | SkAutoPixmapUnlock src; |
| 790 | if (!this->requestLock(&src)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 791 | return false; |
| 792 | } |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 793 | return src.pixmap().readPixels(requestedDstInfo, dstPixels, dstRB, x, y); |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 794 | } |
| 795 | |
| 796 | bool SkBitmap::copyTo(SkBitmap* dst, SkColorType dstColorType, Allocator* alloc) const { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 797 | if (!this->canCopyTo(dstColorType)) { |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 798 | return false; |
| 799 | } |
| 800 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 801 | // if we have a texture, first get those pixels |
| 802 | SkBitmap tmpSrc; |
| 803 | const SkBitmap* src = this; |
| 804 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 805 | if (fPixelRef) { |
| 806 | SkIRect subset; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 807 | subset.setXYWH(fPixelRefOrigin.fX, fPixelRefOrigin.fY, |
| 808 | fInfo.width(), fInfo.height()); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 809 | if (fPixelRef->readPixels(&tmpSrc, &subset)) { |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 810 | if (fPixelRef->info().alphaType() == kUnpremul_SkAlphaType) { |
| 811 | // FIXME: The only meaningful implementation of readPixels |
| 812 | // (GrPixelRef) assumes premultiplied pixels. |
| 813 | return false; |
| 814 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 815 | SkASSERT(tmpSrc.width() == this->width()); |
| 816 | SkASSERT(tmpSrc.height() == this->height()); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 817 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 818 | // did we get lucky and we can just return tmpSrc? |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 819 | if (tmpSrc.colorType() == dstColorType && NULL == alloc) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 820 | dst->swap(tmpSrc); |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 821 | // If the result is an exact copy, clone the gen ID. |
| 822 | if (dst->pixelRef() && dst->pixelRef()->info() == fPixelRef->info()) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 823 | dst->pixelRef()->cloneGenID(*fPixelRef); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 824 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 825 | return true; |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 826 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 827 | |
| 828 | // fall through to the raster case |
| 829 | src = &tmpSrc; |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 830 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 831 | } |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 832 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 833 | SkAutoPixmapUnlock srcUnlocker; |
| 834 | if (!src->requestLock(&srcUnlocker)) { |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 835 | return false; |
| 836 | } |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 837 | const SkPixmap& srcPM = srcUnlocker.pixmap(); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 838 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 839 | const SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 840 | SkBitmap tmpDst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 841 | if (!tmpDst.setInfo(dstInfo)) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 842 | return false; |
| 843 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 844 | |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 845 | // allocate colortable if srcConfig == kIndex8_Config |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 846 | SkAutoTUnref<SkColorTable> ctable; |
| 847 | if (dstColorType == kIndex_8_SkColorType) { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 848 | ctable.reset(SkRef(srcPM.ctable())); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 849 | } |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 850 | if (!tmpDst.tryAllocPixels(alloc, ctable)) { |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 851 | return false; |
| 852 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 853 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 854 | SkAutoPixmapUnlock dstUnlocker; |
| 855 | if (!tmpDst.requestLock(&dstUnlocker)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 856 | return false; |
| 857 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 858 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 859 | if (!srcPM.readPixels(dstUnlocker.pixmap())) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 860 | return false; |
| 861 | } |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 862 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 863 | // (for BitmapHeap) Clone the pixelref genID even though we have a new pixelref. |
| 864 | // The old copyTo impl did this, so we continue it for now. |
| 865 | // |
| 866 | // TODO: should we ignore rowbytes (i.e. getSize)? Then it could just be |
| 867 | // if (src_pixelref->info == dst_pixelref->info) |
| 868 | // |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 869 | if (srcPM.colorType() == dstColorType && tmpDst.getSize() == srcPM.getSize64()) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 870 | SkPixelRef* dstPixelRef = tmpDst.pixelRef(); |
| 871 | if (dstPixelRef->info() == fPixelRef->info()) { |
| 872 | dstPixelRef->cloneGenID(*fPixelRef); |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 873 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 874 | } |
| 875 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 876 | dst->swap(tmpDst); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 877 | return true; |
| 878 | } |
| 879 | |
commit-bot@chromium.org | fab349c | 2014-03-05 02:34:58 +0000 | [diff] [blame] | 880 | bool SkBitmap::deepCopyTo(SkBitmap* dst) const { |
reed | e4538f5 | 2014-06-11 06:09:50 -0700 | [diff] [blame] | 881 | const SkColorType dstCT = this->colorType(); |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 882 | const SkColorProfileType dstPT = this->profileType(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 883 | |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 884 | if (!this->canCopyTo(dstCT)) { |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 885 | return false; |
| 886 | } |
| 887 | |
| 888 | // If we have a PixelRef, and it supports deep copy, use it. |
| 889 | // Currently supported only by texture-backed bitmaps. |
| 890 | if (fPixelRef) { |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 891 | SkPixelRef* pixelRef = fPixelRef->deepCopy(dstCT, dstPT, NULL); |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 892 | if (pixelRef) { |
| 893 | uint32_t rowBytes; |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 894 | if (this->colorType() == dstCT && this->profileType() == dstPT) { |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 895 | // Since there is no subset to pass to deepCopy, and deepCopy |
| 896 | // succeeded, the new pixel ref must be identical. |
| 897 | SkASSERT(fPixelRef->info() == pixelRef->info()); |
| 898 | pixelRef->cloneGenID(*fPixelRef); |
| 899 | // Use the same rowBytes as the original. |
| 900 | rowBytes = fRowBytes; |
| 901 | } else { |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 902 | // With the new config, an appropriate fRowBytes will be computed by setInfo. |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 903 | rowBytes = 0; |
| 904 | } |
| 905 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 906 | const SkImageInfo info = fInfo.makeColorType(dstCT); |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 907 | if (!dst->setInfo(info, rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 908 | return false; |
| 909 | } |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 910 | dst->setPixelRef(pixelRef, fPixelRefOrigin)->unref(); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 911 | return true; |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | if (this->getTexture()) { |
| 916 | return false; |
| 917 | } else { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 918 | return this->copyTo(dst, dstCT, NULL); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 919 | } |
| 920 | } |
| 921 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 922 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 923 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 924 | static void rect_memset(uint8_t* array, U8CPU value, SkISize size, size_t rowBytes) { |
| 925 | for (int y = 0; y < size.height(); ++y) { |
| 926 | memset(array, value, size.width()); |
| 927 | array += rowBytes; |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 928 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 929 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 930 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 931 | static void get_bitmap_alpha(const SkPixmap& pmap, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
| 932 | SkColorType colorType = pmap.colorType(); |
| 933 | int w = pmap.width(); |
| 934 | int h = pmap.height(); |
| 935 | size_t rb = pmap.rowBytes(); |
| 936 | |
| 937 | if (kAlpha_8_SkColorType == colorType && !pmap.isOpaque()) { |
| 938 | const uint8_t* s = pmap.addr8(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 939 | while (--h >= 0) { |
| 940 | memcpy(alpha, s, w); |
| 941 | s += rb; |
| 942 | alpha += alphaRowBytes; |
| 943 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 944 | } else if (kN32_SkColorType == colorType && !pmap.isOpaque()) { |
| 945 | const SkPMColor* SK_RESTRICT s = pmap.addr32(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 946 | while (--h >= 0) { |
| 947 | for (int x = 0; x < w; x++) { |
| 948 | alpha[x] = SkGetPackedA32(s[x]); |
| 949 | } |
| 950 | s = (const SkPMColor*)((const char*)s + rb); |
| 951 | alpha += alphaRowBytes; |
| 952 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 953 | } else if (kARGB_4444_SkColorType == colorType && !pmap.isOpaque()) { |
| 954 | const SkPMColor16* SK_RESTRICT s = pmap.addr16(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 955 | while (--h >= 0) { |
| 956 | for (int x = 0; x < w; x++) { |
| 957 | alpha[x] = SkPacked4444ToA32(s[x]); |
| 958 | } |
| 959 | s = (const SkPMColor16*)((const char*)s + rb); |
| 960 | alpha += alphaRowBytes; |
| 961 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 962 | } else if (kIndex_8_SkColorType == colorType && !pmap.isOpaque()) { |
| 963 | const SkColorTable* ct = pmap.ctable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 964 | if (ct) { |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 965 | const SkPMColor* SK_RESTRICT table = ct->readColors(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 966 | const uint8_t* SK_RESTRICT s = pmap.addr8(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 967 | while (--h >= 0) { |
| 968 | for (int x = 0; x < w; x++) { |
| 969 | alpha[x] = SkGetPackedA32(table[s[x]]); |
| 970 | } |
| 971 | s += rb; |
| 972 | alpha += alphaRowBytes; |
| 973 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 974 | } |
| 975 | } else { // src is opaque, so just fill alpha[] with 0xFF |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 976 | rect_memset(alpha, 0xFF, pmap.info().dimensions(), alphaRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 977 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 978 | } |
| 979 | |
| 980 | static bool GetBitmapAlpha(const SkBitmap& src, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
| 981 | SkASSERT(alpha != NULL); |
| 982 | SkASSERT(alphaRowBytes >= src.width()); |
| 983 | |
| 984 | SkAutoPixmapUnlock apl; |
| 985 | if (!src.requestLock(&apl)) { |
| 986 | rect_memset(alpha, 0, src.info().dimensions(), alphaRowBytes); |
| 987 | return false; |
| 988 | } |
| 989 | get_bitmap_alpha(apl.pixmap(), alpha, alphaRowBytes); |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 990 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 991 | } |
| 992 | |
| 993 | #include "SkPaint.h" |
| 994 | #include "SkMaskFilter.h" |
| 995 | #include "SkMatrix.h" |
| 996 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 997 | bool SkBitmap::extractAlpha(SkBitmap* dst, const SkPaint* paint, |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 998 | Allocator *allocator, SkIPoint* offset) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 999 | SkDEBUGCODE(this->validate();) |
| 1000 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1001 | SkBitmap tmpBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1002 | SkMatrix identity; |
| 1003 | SkMask srcM, dstM; |
| 1004 | |
| 1005 | srcM.fBounds.set(0, 0, this->width(), this->height()); |
| 1006 | srcM.fRowBytes = SkAlign4(this->width()); |
| 1007 | srcM.fFormat = SkMask::kA8_Format; |
| 1008 | |
| 1009 | SkMaskFilter* filter = paint ? paint->getMaskFilter() : NULL; |
| 1010 | |
| 1011 | // compute our (larger?) dst bounds if we have a filter |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1012 | if (filter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1013 | identity.reset(); |
| 1014 | srcM.fImage = NULL; |
| 1015 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1016 | goto NO_FILTER_CASE; |
| 1017 | } |
| 1018 | dstM.fRowBytes = SkAlign4(dstM.fBounds.width()); |
| 1019 | } else { |
| 1020 | NO_FILTER_CASE: |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1021 | tmpBitmap.setInfo(SkImageInfo::MakeA8(this->width(), this->height()), srcM.fRowBytes); |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1022 | if (!tmpBitmap.tryAllocPixels(allocator, NULL)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1023 | // Allocation of pixels for alpha bitmap failed. |
| 1024 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1025 | tmpBitmap.width(), tmpBitmap.height()); |
| 1026 | return false; |
| 1027 | } |
| 1028 | GetBitmapAlpha(*this, tmpBitmap.getAddr8(0, 0), srcM.fRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1029 | if (offset) { |
| 1030 | offset->set(0, 0); |
| 1031 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1032 | tmpBitmap.swap(*dst); |
| 1033 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1034 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1035 | srcM.fImage = SkMask::AllocImage(srcM.computeImageSize()); |
| 1036 | SkAutoMaskFreeImage srcCleanup(srcM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1037 | |
| 1038 | GetBitmapAlpha(*this, srcM.fImage, srcM.fRowBytes); |
| 1039 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1040 | goto NO_FILTER_CASE; |
| 1041 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1042 | SkAutoMaskFreeImage dstCleanup(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1043 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1044 | tmpBitmap.setInfo(SkImageInfo::MakeA8(dstM.fBounds.width(), dstM.fBounds.height()), |
| 1045 | dstM.fRowBytes); |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1046 | if (!tmpBitmap.tryAllocPixels(allocator, NULL)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1047 | // Allocation of pixels for alpha bitmap failed. |
| 1048 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1049 | tmpBitmap.width(), tmpBitmap.height()); |
| 1050 | return false; |
| 1051 | } |
| 1052 | memcpy(tmpBitmap.getPixels(), dstM.fImage, dstM.computeImageSize()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1053 | if (offset) { |
| 1054 | offset->set(dstM.fBounds.fLeft, dstM.fBounds.fTop); |
| 1055 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1056 | SkDEBUGCODE(tmpBitmap.validate();) |
| 1057 | |
| 1058 | tmpBitmap.swap(*dst); |
| 1059 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1060 | } |
| 1061 | |
| 1062 | /////////////////////////////////////////////////////////////////////////////// |
| 1063 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1064 | static void write_raw_pixels(SkWriteBuffer* buffer, const SkPixmap& pmap) { |
| 1065 | const SkImageInfo& info = pmap.info(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1066 | const size_t snugRB = info.width() * info.bytesPerPixel(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1067 | const char* src = (const char*)pmap.addr(); |
| 1068 | const size_t ramRB = pmap.rowBytes(); |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1069 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1070 | buffer->write32(SkToU32(snugRB)); |
| 1071 | info.flatten(*buffer); |
| 1072 | |
| 1073 | const size_t size = snugRB * info.height(); |
| 1074 | SkAutoMalloc storage(size); |
| 1075 | char* dst = (char*)storage.get(); |
| 1076 | for (int y = 0; y < info.height(); ++y) { |
| 1077 | memcpy(dst, src, snugRB); |
| 1078 | dst += snugRB; |
| 1079 | src += ramRB; |
| 1080 | } |
| 1081 | buffer->writeByteArray(storage.get(), size); |
| 1082 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1083 | const SkColorTable* ct = pmap.ctable(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1084 | if (kIndex_8_SkColorType == info.colorType() && ct) { |
| 1085 | buffer->writeBool(true); |
| 1086 | ct->writeToBuffer(*buffer); |
| 1087 | } else { |
| 1088 | buffer->writeBool(false); |
| 1089 | } |
| 1090 | } |
| 1091 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1092 | void SkBitmap::WriteRawPixels(SkWriteBuffer* buffer, const SkBitmap& bitmap) { |
| 1093 | const SkImageInfo info = bitmap.info(); |
| 1094 | if (0 == info.width() || 0 == info.height() || NULL == bitmap.pixelRef()) { |
| 1095 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 1096 | return; |
| 1097 | } |
| 1098 | |
| 1099 | SkAutoPixmapUnlock result; |
| 1100 | if (!bitmap.requestLock(&result)) { |
| 1101 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 1102 | return; |
| 1103 | } |
| 1104 | |
| 1105 | write_raw_pixels(buffer, result.pixmap()); |
| 1106 | } |
| 1107 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1108 | bool SkBitmap::ReadRawPixels(SkReadBuffer* buffer, SkBitmap* bitmap) { |
| 1109 | const size_t snugRB = buffer->readUInt(); |
| 1110 | if (0 == snugRB) { // no pixels |
| 1111 | return false; |
| 1112 | } |
| 1113 | |
| 1114 | SkImageInfo info; |
| 1115 | info.unflatten(*buffer); |
| 1116 | |
sugoi | ca95c19 | 2014-07-08 09:18:48 -0700 | [diff] [blame] | 1117 | // If there was an error reading "info", don't use it to compute minRowBytes() |
| 1118 | if (!buffer->validate(true)) { |
| 1119 | return false; |
| 1120 | } |
| 1121 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1122 | const size_t ramRB = info.minRowBytes(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1123 | const int height = SkMax32(info.height(), 0); |
| 1124 | const uint64_t snugSize = sk_64_mul(snugRB, height); |
| 1125 | const uint64_t ramSize = sk_64_mul(ramRB, height); |
| 1126 | static const uint64_t max_size_t = (size_t)(-1); |
| 1127 | if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { |
commit-bot@chromium.org | 0585843 | 2014-05-30 01:06:44 +0000 | [diff] [blame] | 1128 | return false; |
| 1129 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1130 | |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1131 | SkAutoDataUnref data(SkData::NewUninitialized(SkToSizeT(ramSize))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1132 | unsigned char* dst = (unsigned char*)data->writable_data(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1133 | buffer->readByteArray(dst, SkToSizeT(snugSize)); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1134 | |
| 1135 | if (snugSize != ramSize) { |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1136 | const unsigned char* srcRow = dst + snugRB * (height - 1); |
| 1137 | unsigned char* dstRow = dst + ramRB * (height - 1); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1138 | for (int y = height - 1; y >= 1; --y) { |
| 1139 | memmove(dstRow, srcRow, snugRB); |
| 1140 | srcRow -= snugRB; |
| 1141 | dstRow -= ramRB; |
| 1142 | } |
| 1143 | SkASSERT(srcRow == dstRow); // first row does not need to be moved |
| 1144 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1145 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1146 | SkAutoTUnref<SkColorTable> ctable; |
| 1147 | if (buffer->readBool()) { |
| 1148 | ctable.reset(SkNEW_ARGS(SkColorTable, (*buffer))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame] | 1149 | |
| 1150 | unsigned char maxIndex = ctable->count() ? ctable->count()-1 : 0; |
| 1151 | for (uint64_t i = 0; i < ramSize; ++i) { |
| 1152 | dst[i] = SkTMin(dst[i], maxIndex); |
| 1153 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1154 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1155 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1156 | SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewWithData(info, info.minRowBytes(), |
| 1157 | ctable.get(), data.get())); |
sugoi | 6af3147 | 2015-01-28 13:15:32 -0800 | [diff] [blame] | 1158 | if (!pr.get()) { |
| 1159 | return false; |
| 1160 | } |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1161 | bitmap->setInfo(pr->info()); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1162 | bitmap->setPixelRef(pr, 0, 0); |
| 1163 | return true; |
| 1164 | } |
| 1165 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1166 | enum { |
| 1167 | SERIALIZE_PIXELTYPE_NONE, |
djsollen@google.com | 21830d9 | 2012-08-07 19:49:41 +0000 | [diff] [blame] | 1168 | SERIALIZE_PIXELTYPE_REF_DATA |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1169 | }; |
| 1170 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1171 | /////////////////////////////////////////////////////////////////////////////// |
| 1172 | |
| 1173 | SkBitmap::RLEPixels::RLEPixels(int width, int height) { |
| 1174 | fHeight = height; |
commit-bot@chromium.org | 235002f | 2013-10-09 18:39:59 +0000 | [diff] [blame] | 1175 | fYPtrs = (uint8_t**)sk_calloc_throw(height * sizeof(uint8_t*)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1176 | } |
| 1177 | |
| 1178 | SkBitmap::RLEPixels::~RLEPixels() { |
| 1179 | sk_free(fYPtrs); |
| 1180 | } |
| 1181 | |
| 1182 | /////////////////////////////////////////////////////////////////////////////// |
| 1183 | |
| 1184 | #ifdef SK_DEBUG |
| 1185 | void SkBitmap::validate() const { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1186 | fInfo.validate(); |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 1187 | |
| 1188 | // ImageInfo may not require this, but Bitmap ensures that opaque-only |
| 1189 | // colorTypes report opaque for their alphatype |
| 1190 | if (kRGB_565_SkColorType == fInfo.colorType()) { |
| 1191 | SkASSERT(kOpaque_SkAlphaType == fInfo.alphaType()); |
| 1192 | } |
| 1193 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1194 | SkASSERT(fInfo.validRowBytes(fRowBytes)); |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1195 | uint8_t allFlags = kImageIsVolatile_Flag; |
scroggo@google.com | 8e990eb | 2013-06-14 15:55:56 +0000 | [diff] [blame] | 1196 | #ifdef SK_BUILD_FOR_ANDROID |
| 1197 | allFlags |= kHasHardwareMipMap_Flag; |
| 1198 | #endif |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1199 | SkASSERT((~allFlags & fFlags) == 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1200 | SkASSERT(fPixelLockCount >= 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1201 | |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1202 | if (fPixels) { |
| 1203 | SkASSERT(fPixelRef); |
robertphillips | e77dadd | 2014-11-21 05:50:21 -0800 | [diff] [blame] | 1204 | SkASSERT(fPixelLockCount > 0); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1205 | SkASSERT(fPixelRef->isLocked()); |
| 1206 | SkASSERT(fPixelRef->rowBytes() == fRowBytes); |
| 1207 | SkASSERT(fPixelRefOrigin.fX >= 0); |
| 1208 | SkASSERT(fPixelRefOrigin.fY >= 0); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1209 | SkASSERT(fPixelRef->info().width() >= (int)this->width() + fPixelRefOrigin.fX); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 1210 | SkASSERT(fPixelRef->info().height() >= (int)this->height() + fPixelRefOrigin.fY); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1211 | SkASSERT(fPixelRef->rowBytes() >= fInfo.minRowBytes()); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1212 | } else { |
| 1213 | SkASSERT(NULL == fColorTable); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1214 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1215 | } |
| 1216 | #endif |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1217 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 1218 | #ifndef SK_IGNORE_TO_STRING |
bungeman | 7403d87 | 2015-08-04 14:56:53 -0700 | [diff] [blame^] | 1219 | #include "SkString.h" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1220 | void SkBitmap::toString(SkString* str) const { |
| 1221 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1222 | static const char* gColorTypeNames[kLastEnum_SkColorType + 1] = { |
| 1223 | "UNKNOWN", "A8", "565", "4444", "RGBA", "BGRA", "INDEX8", |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1224 | }; |
| 1225 | |
| 1226 | str->appendf("bitmap: ((%d, %d) %s", this->width(), this->height(), |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1227 | gColorTypeNames[this->colorType()]); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1228 | |
| 1229 | str->append(" ("); |
| 1230 | if (this->isOpaque()) { |
| 1231 | str->append("opaque"); |
| 1232 | } else { |
| 1233 | str->append("transparent"); |
| 1234 | } |
| 1235 | if (this->isImmutable()) { |
| 1236 | str->append(", immutable"); |
| 1237 | } else { |
| 1238 | str->append(", not-immutable"); |
| 1239 | } |
| 1240 | str->append(")"); |
| 1241 | |
| 1242 | SkPixelRef* pr = this->pixelRef(); |
| 1243 | if (NULL == pr) { |
| 1244 | // show null or the explicit pixel address (rare) |
| 1245 | str->appendf(" pixels:%p", this->getPixels()); |
| 1246 | } else { |
| 1247 | const char* uri = pr->getURI(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1248 | if (uri) { |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1249 | str->appendf(" uri:\"%s\"", uri); |
| 1250 | } else { |
| 1251 | str->appendf(" pixelref:%p", pr); |
| 1252 | } |
| 1253 | } |
| 1254 | |
| 1255 | str->append(")"); |
| 1256 | } |
| 1257 | #endif |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1258 | |
| 1259 | /////////////////////////////////////////////////////////////////////////////// |
| 1260 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1261 | bool SkBitmap::requestLock(SkAutoPixmapUnlock* result) const { |
| 1262 | SkASSERT(result); |
| 1263 | |
| 1264 | SkPixelRef* pr = fPixelRef; |
| 1265 | if (NULL == pr) { |
| 1266 | return false; |
| 1267 | } |
| 1268 | |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame] | 1269 | // We have to lock the whole thing (using the pixelref's dimensions) until the api supports |
| 1270 | // a partial lock (with offset/origin). Hence we can't use our fInfo. |
| 1271 | SkPixelRef::LockRequest req = { pr->info().dimensions(), kNone_SkFilterQuality }; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1272 | SkPixelRef::LockResult res; |
| 1273 | if (pr->requestLock(req, &res)) { |
reed | e800657 | 2015-05-28 14:06:06 -0700 | [diff] [blame] | 1274 | SkASSERT(res.fPixels); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1275 | // The bitmap may be a subset of the pixelref's dimensions |
| 1276 | SkASSERT(fPixelRefOrigin.x() + fInfo.width() <= res.fSize.width()); |
| 1277 | SkASSERT(fPixelRefOrigin.y() + fInfo.height() <= res.fSize.height()); |
| 1278 | const void* addr = (const char*)res.fPixels + SkColorTypeComputeOffset(fInfo.colorType(), |
| 1279 | fPixelRefOrigin.x(), |
| 1280 | fPixelRefOrigin.y(), |
| 1281 | res.fRowBytes); |
| 1282 | |
| 1283 | result->reset(SkPixmap(this->info(), addr, res.fRowBytes, res.fCTable), |
| 1284 | res.fUnlockProc, res.fUnlockContext); |
| 1285 | return true; |
| 1286 | } |
| 1287 | return false; |
| 1288 | } |
| 1289 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 1290 | bool SkBitmap::peekPixels(SkPixmap* pmap) const { |
| 1291 | if (fPixels) { |
| 1292 | if (pmap) { |
| 1293 | pmap->reset(fInfo, fPixels, fRowBytes, fColorTable); |
| 1294 | } |
| 1295 | return true; |
| 1296 | } |
| 1297 | return false; |
| 1298 | } |
| 1299 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1300 | /////////////////////////////////////////////////////////////////////////////// |
| 1301 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1302 | #ifdef SK_DEBUG |
| 1303 | void SkImageInfo::validate() const { |
| 1304 | SkASSERT(fWidth >= 0); |
| 1305 | SkASSERT(fHeight >= 0); |
| 1306 | SkASSERT(SkColorTypeIsValid(fColorType)); |
| 1307 | SkASSERT(SkAlphaTypeIsValid(fAlphaType)); |
| 1308 | } |
| 1309 | #endif |