epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2008 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #include "SkBitmap.h" |
| 11 | #include "SkColorPriv.h" |
| 12 | #include "SkDither.h" |
| 13 | #include "SkFlattenable.h" |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame] | 14 | #include "SkImagePriv.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | #include "SkMallocPixelRef.h" |
| 16 | #include "SkMask.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 17 | #include "SkReadBuffer.h" |
| 18 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 19 | #include "SkPixelRef.h" |
| 20 | #include "SkThread.h" |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 21 | #include "SkUnPreMultiply.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 22 | #include "SkUtils.h" |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 23 | #include "SkValidationUtils.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | #include "SkPackBits.h" |
| 25 | #include <new> |
| 26 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 27 | static bool reset_return_false(SkBitmap* bm) { |
| 28 | bm->reset(); |
| 29 | return false; |
| 30 | } |
| 31 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | SkBitmap::SkBitmap() { |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 33 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| 36 | SkBitmap::SkBitmap(const SkBitmap& src) { |
| 37 | SkDEBUGCODE(src.validate();) |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 38 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | *this = src; |
| 40 | SkDEBUGCODE(this->validate();) |
| 41 | } |
| 42 | |
| 43 | SkBitmap::~SkBitmap() { |
| 44 | SkDEBUGCODE(this->validate();) |
| 45 | this->freePixels(); |
| 46 | } |
| 47 | |
| 48 | SkBitmap& SkBitmap::operator=(const SkBitmap& src) { |
| 49 | if (this != &src) { |
| 50 | this->freePixels(); |
| 51 | memcpy(this, &src, sizeof(src)); |
| 52 | |
| 53 | // inc src reference counts |
reed@android.com | 83f7bc3 | 2009-07-17 02:42:41 +0000 | [diff] [blame] | 54 | SkSafeRef(src.fPixelRef); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 55 | |
| 56 | // we reset our locks if we get blown away |
| 57 | fPixelLockCount = 0; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 58 | |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 59 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | // ignore the values from the memcpy |
| 61 | fPixels = NULL; |
| 62 | fColorTable = NULL; |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 63 | // Note that what to for genID is somewhat arbitrary. We have no |
| 64 | // way to track changes to raw pixels across multiple SkBitmaps. |
| 65 | // Would benefit from an SkRawPixelRef type created by |
| 66 | // setPixels. |
| 67 | // Just leave the memcpy'ed one but they'll get out of sync |
| 68 | // as soon either is modified. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | } |
| 70 | } |
| 71 | |
| 72 | SkDEBUGCODE(this->validate();) |
| 73 | return *this; |
| 74 | } |
| 75 | |
| 76 | void SkBitmap::swap(SkBitmap& other) { |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 77 | SkTSwap(fColorTable, other.fColorTable); |
| 78 | SkTSwap(fPixelRef, other.fPixelRef); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 79 | SkTSwap(fPixelRefOrigin, other.fPixelRefOrigin); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 80 | SkTSwap(fPixelLockCount, other.fPixelLockCount); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 81 | SkTSwap(fPixels, other.fPixels); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 82 | SkTSwap(fInfo, other.fInfo); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 83 | SkTSwap(fRowBytes, other.fRowBytes); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 84 | SkTSwap(fFlags, other.fFlags); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 85 | |
| 86 | SkDEBUGCODE(this->validate();) |
| 87 | } |
| 88 | |
| 89 | void SkBitmap::reset() { |
| 90 | this->freePixels(); |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 91 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | } |
| 93 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 94 | void SkBitmap::getBounds(SkRect* bounds) const { |
| 95 | SkASSERT(bounds); |
| 96 | bounds->set(0, 0, |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 97 | SkIntToScalar(fInfo.width()), SkIntToScalar(fInfo.height())); |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 98 | } |
| 99 | |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 100 | void SkBitmap::getBounds(SkIRect* bounds) const { |
| 101 | SkASSERT(bounds); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 102 | bounds->set(0, 0, fInfo.width(), fInfo.height()); |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 103 | } |
| 104 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 105 | /////////////////////////////////////////////////////////////////////////////// |
| 106 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 107 | bool SkBitmap::setInfo(const SkImageInfo& info, size_t rowBytes) { |
| 108 | SkAlphaType newAT = info.alphaType(); |
| 109 | if (!SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &newAT)) { |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 110 | return reset_return_false(this); |
| 111 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 112 | // 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] | 113 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 114 | // require that rowBytes fit in 31bits |
| 115 | int64_t mrb = info.minRowBytes64(); |
| 116 | if ((int32_t)mrb != mrb) { |
| 117 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 118 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 119 | if ((int64_t)rowBytes != (int32_t)rowBytes) { |
| 120 | return reset_return_false(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 121 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 122 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 123 | if (info.width() < 0 || info.height() < 0) { |
| 124 | return reset_return_false(this); |
| 125 | } |
| 126 | |
| 127 | if (kUnknown_SkColorType == info.colorType()) { |
| 128 | rowBytes = 0; |
| 129 | } else if (0 == rowBytes) { |
| 130 | rowBytes = (size_t)mrb; |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 131 | } else if (!info.validRowBytes(rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 132 | return reset_return_false(this); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | this->freePixels(); |
| 136 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 137 | fInfo = info.makeAlphaType(newAT); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 138 | fRowBytes = SkToU32(rowBytes); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 139 | return true; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 140 | } |
| 141 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 142 | bool SkBitmap::setAlphaType(SkAlphaType newAlphaType) { |
| 143 | if (!SkColorTypeValidateAlphaType(fInfo.colorType(), newAlphaType, &newAlphaType)) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 144 | return false; |
| 145 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 146 | if (fInfo.alphaType() != newAlphaType) { |
| 147 | fInfo = fInfo.makeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 148 | if (fPixelRef) { |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 149 | fPixelRef->changeAlphaType(newAlphaType); |
commit-bot@chromium.org | 0e8d0d6 | 2014-01-27 15:41:07 +0000 | [diff] [blame] | 150 | } |
| 151 | } |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 152 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 153 | } |
| 154 | |
| 155 | void SkBitmap::updatePixelsFromRef() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 156 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 157 | if (fPixelLockCount > 0) { |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 158 | SkASSERT(fPixelRef->isLocked()); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 159 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 160 | void* p = fPixelRef->pixels(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 161 | if (p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 162 | p = (char*)p |
reed@google.com | 303c475 | 2014-01-09 20:00:14 +0000 | [diff] [blame] | 163 | + fPixelRefOrigin.fY * fRowBytes |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 164 | + fPixelRefOrigin.fX * fInfo.bytesPerPixel(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | } |
| 166 | fPixels = p; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 167 | fColorTable = fPixelRef->colorTable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 168 | } else { |
| 169 | SkASSERT(0 == fPixelLockCount); |
| 170 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 171 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 176 | SkPixelRef* SkBitmap::setPixelRef(SkPixelRef* pr, int dx, int dy) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 177 | #ifdef SK_DEBUG |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 178 | if (pr) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 179 | if (kUnknown_SkColorType != fInfo.colorType()) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 180 | const SkImageInfo& prInfo = pr->info(); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 181 | SkASSERT(fInfo.width() <= prInfo.width()); |
| 182 | SkASSERT(fInfo.height() <= prInfo.height()); |
| 183 | SkASSERT(fInfo.colorType() == prInfo.colorType()); |
| 184 | switch (prInfo.alphaType()) { |
reed | 4497748 | 2015-02-27 10:23:00 -0800 | [diff] [blame] | 185 | case kUnknown_SkAlphaType: |
| 186 | SkASSERT(fInfo.alphaType() == kUnknown_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 187 | break; |
| 188 | case kOpaque_SkAlphaType: |
| 189 | case kPremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 190 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 191 | fInfo.alphaType() == kPremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 192 | break; |
| 193 | case kUnpremul_SkAlphaType: |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 194 | SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType || |
| 195 | fInfo.alphaType() == kUnpremul_SkAlphaType); |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 196 | break; |
| 197 | } |
| 198 | } |
| 199 | } |
| 200 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 201 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 202 | if (pr) { |
| 203 | const SkImageInfo& info = pr->info(); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 204 | 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] | 205 | } else { |
| 206 | // ignore dx,dy if there is no pixelref |
| 207 | fPixelRefOrigin.setZero(); |
| 208 | } |
| 209 | |
| 210 | if (fPixelRef != pr) { |
piotaixr | 0eb02a6 | 2014-06-16 11:50:49 -0700 | [diff] [blame] | 211 | this->freePixels(); |
| 212 | SkASSERT(NULL == fPixelRef); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 213 | |
piotaixr | 0eb02a6 | 2014-06-16 11:50:49 -0700 | [diff] [blame] | 214 | SkSafeRef(pr); |
| 215 | fPixelRef = pr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 216 | this->updatePixelsFromRef(); |
| 217 | } |
| 218 | |
| 219 | SkDEBUGCODE(this->validate();) |
| 220 | return pr; |
| 221 | } |
| 222 | |
| 223 | void SkBitmap::lockPixels() const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 224 | if (fPixelRef && 0 == sk_atomic_inc(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | fPixelRef->lockPixels(); |
| 226 | this->updatePixelsFromRef(); |
| 227 | } |
| 228 | SkDEBUGCODE(this->validate();) |
| 229 | } |
| 230 | |
| 231 | void SkBitmap::unlockPixels() const { |
| 232 | SkASSERT(NULL == fPixelRef || fPixelLockCount > 0); |
| 233 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 234 | if (fPixelRef && 1 == sk_atomic_dec(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 235 | fPixelRef->unlockPixels(); |
| 236 | this->updatePixelsFromRef(); |
| 237 | } |
| 238 | SkDEBUGCODE(this->validate();) |
| 239 | } |
| 240 | |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 241 | bool SkBitmap::lockPixelsAreWritable() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 242 | return (fPixelRef) ? fPixelRef->lockPixelsAreWritable() : false; |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 243 | } |
| 244 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 245 | void SkBitmap::setPixels(void* p, SkColorTable* ctable) { |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 246 | if (NULL == p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 247 | this->setPixelRef(NULL); |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 248 | return; |
| 249 | } |
| 250 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 251 | if (kUnknown_SkColorType == fInfo.colorType()) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 252 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 253 | return; |
| 254 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 255 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 256 | SkPixelRef* pr = SkMallocPixelRef::NewDirect(fInfo, p, fRowBytes, ctable); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 257 | if (NULL == pr) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 258 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 259 | return; |
| 260 | } |
| 261 | |
| 262 | this->setPixelRef(pr)->unref(); |
| 263 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 264 | // since we're already allocated, we lockPixels right away |
| 265 | this->lockPixels(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 266 | SkDEBUGCODE(this->validate();) |
| 267 | } |
| 268 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 269 | bool SkBitmap::tryAllocPixels(Allocator* allocator, SkColorTable* ctable) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | HeapAllocator stdalloc; |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 271 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 272 | if (NULL == allocator) { |
| 273 | allocator = &stdalloc; |
| 274 | } |
| 275 | return allocator->allocPixelRef(this, ctable); |
| 276 | } |
| 277 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 278 | /////////////////////////////////////////////////////////////////////////////// |
| 279 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 280 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, size_t rowBytes) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 281 | if (kIndex_8_SkColorType == requestedInfo.colorType()) { |
| 282 | return reset_return_false(this); |
| 283 | } |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 284 | if (!this->setInfo(requestedInfo, rowBytes)) { |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 285 | return reset_return_false(this); |
| 286 | } |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 287 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 288 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 289 | const SkImageInfo& correctedInfo = this->info(); |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 290 | // setInfo may have computed a valid rowbytes if 0 were passed in |
| 291 | rowBytes = this->rowBytes(); |
| 292 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 293 | SkMallocPixelRef::PRFactory defaultFactory; |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 294 | |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 295 | SkPixelRef* pr = defaultFactory.create(correctedInfo, rowBytes, NULL); |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 296 | if (NULL == pr) { |
| 297 | return reset_return_false(this); |
| 298 | } |
| 299 | this->setPixelRef(pr)->unref(); |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 300 | |
reed | bae704b | 2014-06-28 14:26:35 -0700 | [diff] [blame] | 301 | // TODO: lockPixels could/should return bool or void*/NULL |
| 302 | this->lockPixels(); |
| 303 | if (NULL == this->getPixels()) { |
| 304 | return reset_return_false(this); |
| 305 | } |
| 306 | return true; |
| 307 | } |
| 308 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 309 | bool SkBitmap::tryAllocPixels(const SkImageInfo& requestedInfo, SkPixelRefFactory* factory, |
| 310 | SkColorTable* ctable) { |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 311 | if (kIndex_8_SkColorType == requestedInfo.colorType() && NULL == ctable) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 312 | return reset_return_false(this); |
| 313 | } |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 314 | if (!this->setInfo(requestedInfo)) { |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 315 | return reset_return_false(this); |
| 316 | } |
| 317 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 318 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 319 | const SkImageInfo& correctedInfo = this->info(); |
| 320 | |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 321 | SkMallocPixelRef::PRFactory defaultFactory; |
| 322 | if (NULL == factory) { |
| 323 | factory = &defaultFactory; |
| 324 | } |
skia.committer@gmail.com | d2ac07b | 2014-01-25 07:01:49 +0000 | [diff] [blame] | 325 | |
reed | f0aed97 | 2014-07-01 12:48:11 -0700 | [diff] [blame] | 326 | SkPixelRef* pr = factory->create(correctedInfo, correctedInfo.minRowBytes(), ctable); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 327 | if (NULL == pr) { |
| 328 | return reset_return_false(this); |
| 329 | } |
| 330 | this->setPixelRef(pr)->unref(); |
| 331 | |
| 332 | // TODO: lockPixels could/should return bool or void*/NULL |
| 333 | this->lockPixels(); |
| 334 | if (NULL == this->getPixels()) { |
| 335 | return reset_return_false(this); |
| 336 | } |
| 337 | return true; |
| 338 | } |
| 339 | |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 340 | static void invoke_release_proc(void (*proc)(void* pixels, void* ctx), void* pixels, void* ctx) { |
| 341 | if (proc) { |
| 342 | proc(pixels, ctx); |
| 343 | } |
| 344 | } |
| 345 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 346 | bool SkBitmap::installPixels(const SkImageInfo& requestedInfo, void* pixels, size_t rb, |
| 347 | SkColorTable* ct, void (*releaseProc)(void* addr, void* context), |
| 348 | void* context) { |
| 349 | if (!this->setInfo(requestedInfo, rb)) { |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 350 | invoke_release_proc(releaseProc, pixels, context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 351 | this->reset(); |
| 352 | return false; |
| 353 | } |
reed | db74f62 | 2015-05-30 13:41:15 -0700 | [diff] [blame] | 354 | if (NULL == pixels) { |
| 355 | invoke_release_proc(releaseProc, pixels, context); |
| 356 | return true; // we behaved as if they called setInfo() |
| 357 | } |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 358 | |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 359 | // setInfo may have corrected info (e.g. 565 is always opaque). |
| 360 | const SkImageInfo& correctedInfo = this->info(); |
| 361 | |
| 362 | SkPixelRef* pr = SkMallocPixelRef::NewWithProc(correctedInfo, rb, ct, pixels, releaseProc, |
| 363 | context); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 364 | if (!pr) { |
| 365 | this->reset(); |
| 366 | return false; |
| 367 | } |
| 368 | |
| 369 | this->setPixelRef(pr)->unref(); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 370 | |
| 371 | // since we're already allocated, we lockPixels right away |
| 372 | this->lockPixels(); |
mike@reedtribe.org | 6e58cf3 | 2014-02-16 20:54:21 +0000 | [diff] [blame] | 373 | SkDEBUGCODE(this->validate();) |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 374 | return true; |
| 375 | } |
| 376 | |
commit-bot@chromium.org | dac5225 | 2014-02-17 21:21:46 +0000 | [diff] [blame] | 377 | bool SkBitmap::installMaskPixels(const SkMask& mask) { |
| 378 | if (SkMask::kA8_Format != mask.fFormat) { |
| 379 | this->reset(); |
| 380 | return false; |
| 381 | } |
| 382 | return this->installPixels(SkImageInfo::MakeA8(mask.fBounds.width(), |
| 383 | mask.fBounds.height()), |
| 384 | mask.fImage, mask.fRowBytes); |
| 385 | } |
| 386 | |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 387 | /////////////////////////////////////////////////////////////////////////////// |
| 388 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 389 | void SkBitmap::freePixels() { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 390 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 391 | if (fPixelLockCount > 0) { |
| 392 | fPixelRef->unlockPixels(); |
| 393 | } |
| 394 | fPixelRef->unref(); |
| 395 | fPixelRef = NULL; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 396 | fPixelRefOrigin.setZero(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 397 | } |
| 398 | fPixelLockCount = 0; |
| 399 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 400 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 401 | } |
| 402 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 403 | uint32_t SkBitmap::getGenerationID() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 404 | return (fPixelRef) ? fPixelRef->getGenerationID() : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 405 | } |
| 406 | |
| 407 | void SkBitmap::notifyPixelsChanged() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 408 | SkASSERT(!this->isImmutable()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 409 | if (fPixelRef) { |
| 410 | fPixelRef->notifyPixelsChanged(); |
| 411 | } |
| 412 | } |
| 413 | |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 414 | GrTexture* SkBitmap::getTexture() const { |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 415 | return fPixelRef ? fPixelRef->getTexture() : NULL; |
| 416 | } |
| 417 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 418 | /////////////////////////////////////////////////////////////////////////////// |
| 419 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 420 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 421 | so that we can freely assign memory allocated by one class to the other. |
| 422 | */ |
| 423 | bool SkBitmap::HeapAllocator::allocPixelRef(SkBitmap* dst, |
| 424 | SkColorTable* ctable) { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 425 | const SkImageInfo info = dst->info(); |
| 426 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 427 | // SkDebugf("unsupported config for info %d\n", dst->config()); |
| 428 | return false; |
| 429 | } |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 430 | |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 431 | SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, dst->rowBytes(), ctable); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 432 | if (NULL == pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | return false; |
| 434 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 435 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 436 | dst->setPixelRef(pr)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 437 | // since we're already allocated, we lockPixels right away |
| 438 | dst->lockPixels(); |
| 439 | return true; |
| 440 | } |
| 441 | |
| 442 | /////////////////////////////////////////////////////////////////////////////// |
| 443 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 444 | static bool copy_pixels_to(const SkPixmap& src, void* const dst, size_t dstSize, |
| 445 | size_t dstRowBytes, bool preserveDstPad) { |
| 446 | const SkImageInfo& info = src.info(); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 447 | |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 448 | if (0 == dstRowBytes) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 449 | dstRowBytes = src.rowBytes(); |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 450 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 451 | if (dstRowBytes < info.minRowBytes()) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 452 | return false; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 453 | } |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 454 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 455 | if (!preserveDstPad && static_cast<uint32_t>(dstRowBytes) == src.rowBytes()) { |
| 456 | size_t safeSize = src.getSafeSize(); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 457 | if (safeSize > dstSize || safeSize == 0) |
| 458 | return false; |
| 459 | else { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 460 | // This implementation will write bytes beyond the end of each row, |
| 461 | // excluding the last row, if the bitmap's stride is greater than |
| 462 | // strictly required by the current config. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 463 | memcpy(dst, src.addr(), safeSize); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 464 | return true; |
| 465 | } |
| 466 | } else { |
| 467 | // If destination has different stride than us, then copy line by line. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 468 | if (info.getSafeSize(dstRowBytes) > dstSize) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 469 | return false; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 470 | } else { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 471 | // Just copy what we need on each line. |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 472 | size_t rowBytes = info.minRowBytes(); |
| 473 | const uint8_t* srcP = reinterpret_cast<const uint8_t*>(src.addr()); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 474 | uint8_t* dstP = reinterpret_cast<uint8_t*>(dst); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 475 | for (int row = 0; row < info.height(); ++row) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 476 | memcpy(dstP, srcP, rowBytes); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 477 | srcP += src.rowBytes(); |
| 478 | dstP += dstRowBytes; |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | return true; |
| 482 | } |
| 483 | } |
| 484 | } |
| 485 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 486 | bool SkBitmap::copyPixelsTo(void* dst, size_t dstSize, size_t dstRB, bool preserveDstPad) const { |
| 487 | if (NULL == dst) { |
| 488 | return false; |
| 489 | } |
| 490 | SkAutoPixmapUnlock result; |
| 491 | if (!this->requestLock(&result)) { |
| 492 | return false; |
| 493 | } |
| 494 | return copy_pixels_to(result.pixmap(), dst, dstSize, dstRB, preserveDstPad); |
| 495 | } |
| 496 | |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 497 | /////////////////////////////////////////////////////////////////////////////// |
| 498 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 499 | bool SkBitmap::isImmutable() const { |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 500 | return fPixelRef ? fPixelRef->isImmutable() : false; |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | void SkBitmap::setImmutable() { |
| 504 | if (fPixelRef) { |
| 505 | fPixelRef->setImmutable(); |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 506 | } |
| 507 | } |
| 508 | |
junov@google.com | 4ee7ae5 | 2011-06-30 17:30:49 +0000 | [diff] [blame] | 509 | bool SkBitmap::isVolatile() const { |
| 510 | return (fFlags & kImageIsVolatile_Flag) != 0; |
| 511 | } |
| 512 | |
| 513 | void SkBitmap::setIsVolatile(bool isVolatile) { |
| 514 | if (isVolatile) { |
| 515 | fFlags |= kImageIsVolatile_Flag; |
| 516 | } else { |
| 517 | fFlags &= ~kImageIsVolatile_Flag; |
| 518 | } |
| 519 | } |
| 520 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 521 | void* SkBitmap::getAddr(int x, int y) const { |
| 522 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 523 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 524 | |
| 525 | char* base = (char*)this->getPixels(); |
| 526 | if (base) { |
| 527 | base += y * this->rowBytes(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 528 | switch (this->colorType()) { |
| 529 | case kRGBA_8888_SkColorType: |
| 530 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 531 | base += x << 2; |
| 532 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 533 | case kARGB_4444_SkColorType: |
| 534 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 535 | base += x << 1; |
| 536 | break; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 537 | case kAlpha_8_SkColorType: |
| 538 | case kIndex_8_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 539 | case kGray_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | base += x; |
| 541 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 542 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 543 | SkDEBUGFAIL("Can't return addr for config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 544 | base = NULL; |
| 545 | break; |
| 546 | } |
| 547 | } |
| 548 | return base; |
| 549 | } |
| 550 | |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 551 | SkColor SkBitmap::getColor(int x, int y) const { |
| 552 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 553 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 554 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 555 | switch (this->colorType()) { |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 556 | case kGray_8_SkColorType: { |
| 557 | uint8_t* addr = this->getAddr8(x, y); |
| 558 | return SkColorSetRGB(*addr, *addr, *addr); |
| 559 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 560 | case kAlpha_8_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 561 | uint8_t* addr = this->getAddr8(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 562 | return SkColorSetA(0, addr[0]); |
| 563 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 564 | case kIndex_8_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 565 | SkPMColor c = this->getIndex8Color(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 566 | return SkUnPreMultiply::PMColorToColor(c); |
| 567 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 568 | case kRGB_565_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 569 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 570 | return SkPixel16ToColor(addr[0]); |
| 571 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 572 | case kARGB_4444_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 573 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 574 | SkPMColor c = SkPixel4444ToPixel32(addr[0]); |
| 575 | return SkUnPreMultiply::PMColorToColor(c); |
| 576 | } |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 577 | case kBGRA_8888_SkColorType: |
| 578 | case kRGBA_8888_SkColorType: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 579 | uint32_t* addr = this->getAddr32(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 580 | return SkUnPreMultiply::PMColorToColor(addr[0]); |
| 581 | } |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 582 | default: |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 583 | SkASSERT(false); |
| 584 | return 0; |
| 585 | } |
| 586 | SkASSERT(false); // Not reached. |
| 587 | return 0; |
| 588 | } |
| 589 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 590 | static bool compute_is_opaque(const SkPixmap& pmap) { |
| 591 | const int height = pmap.height(); |
| 592 | const int width = pmap.width(); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 593 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 594 | switch (pmap.colorType()) { |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 595 | case kAlpha_8_SkColorType: { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 596 | unsigned a = 0xFF; |
| 597 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 598 | const uint8_t* row = pmap.addr8(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 599 | for (int x = 0; x < width; ++x) { |
| 600 | a &= row[x]; |
| 601 | } |
| 602 | if (0xFF != a) { |
| 603 | return false; |
| 604 | } |
| 605 | } |
| 606 | return true; |
| 607 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 608 | case kIndex_8_SkColorType: { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 609 | const SkColorTable* ctable = pmap.ctable(); |
| 610 | if (NULL == ctable) { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 611 | return false; |
| 612 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 613 | const SkPMColor* table = ctable->readColors(); |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 614 | SkPMColor c = (SkPMColor)~0; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 615 | for (int i = ctable->count() - 1; i >= 0; --i) { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 616 | c &= table[i]; |
| 617 | } |
| 618 | return 0xFF == SkGetPackedA32(c); |
| 619 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 620 | case kRGB_565_SkColorType: |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 621 | case kGray_8_SkColorType: |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 622 | return true; |
| 623 | break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 624 | case kARGB_4444_SkColorType: { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 625 | unsigned c = 0xFFFF; |
| 626 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 627 | const SkPMColor16* row = pmap.addr16(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 628 | for (int x = 0; x < width; ++x) { |
| 629 | c &= row[x]; |
| 630 | } |
| 631 | if (0xF != SkGetPackedA4444(c)) { |
| 632 | return false; |
| 633 | } |
| 634 | } |
| 635 | return true; |
| 636 | } break; |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 637 | case kBGRA_8888_SkColorType: |
| 638 | case kRGBA_8888_SkColorType: { |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 639 | SkPMColor c = (SkPMColor)~0; |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 640 | for (int y = 0; y < height; ++y) { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 641 | const SkPMColor* row = pmap.addr32(0, y); |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 642 | for (int x = 0; x < width; ++x) { |
| 643 | c &= row[x]; |
| 644 | } |
| 645 | if (0xFF != SkGetPackedA32(c)) { |
| 646 | return false; |
| 647 | } |
| 648 | } |
| 649 | return true; |
| 650 | } |
| 651 | default: |
| 652 | break; |
| 653 | } |
| 654 | return false; |
| 655 | } |
| 656 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 657 | bool SkBitmap::ComputeIsOpaque(const SkBitmap& bm) { |
| 658 | SkAutoPixmapUnlock result; |
| 659 | if (!bm.requestLock(&result)) { |
| 660 | return false; |
| 661 | } |
| 662 | return compute_is_opaque(result.pixmap()); |
| 663 | } |
| 664 | |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 665 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 666 | /////////////////////////////////////////////////////////////////////////////// |
| 667 | /////////////////////////////////////////////////////////////////////////////// |
| 668 | |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 669 | static uint16_t pack_8888_to_4444(unsigned a, unsigned r, unsigned g, unsigned b) { |
| 670 | unsigned pixel = (SkA32To4444(a) << SK_A4444_SHIFT) | |
| 671 | (SkR32To4444(r) << SK_R4444_SHIFT) | |
| 672 | (SkG32To4444(g) << SK_G4444_SHIFT) | |
| 673 | (SkB32To4444(b) << SK_B4444_SHIFT); |
| 674 | return SkToU16(pixel); |
| 675 | } |
| 676 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 677 | static bool internal_erase(const SkPixmap& pmap, const SkIRect& area, |
| 678 | U8CPU a, U8CPU r, U8CPU g, U8CPU b) { |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 679 | int height = area.height(); |
| 680 | const int width = area.width(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 681 | const int rowBytes = pmap.rowBytes(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 682 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 683 | switch (pmap.colorType()) { |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 684 | case kGray_8_SkColorType: { |
| 685 | if (255 != a) { |
| 686 | r = SkMulDiv255Round(r, a); |
| 687 | g = SkMulDiv255Round(g, a); |
| 688 | b = SkMulDiv255Round(b, a); |
| 689 | } |
| 690 | int gray = SkComputeLuminance(r, g, b); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 691 | uint8_t* p = pmap.writable_addr8(area.fLeft, area.fTop); |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 692 | while (--height >= 0) { |
| 693 | memset(p, gray, width); |
| 694 | p += rowBytes; |
| 695 | } |
| 696 | break; |
| 697 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 698 | case kAlpha_8_SkColorType: { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 699 | uint8_t* p = pmap.writable_addr8(area.fLeft, area.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 700 | while (--height >= 0) { |
| 701 | memset(p, a, width); |
| 702 | p += rowBytes; |
| 703 | } |
| 704 | break; |
| 705 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 706 | case kARGB_4444_SkColorType: |
| 707 | case kRGB_565_SkColorType: { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 708 | uint16_t* p = pmap.writable_addr16(area.fLeft, area.fTop); |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 709 | uint16_t v; |
skia.committer@gmail.com | 020b25b | 2013-06-22 07:00:58 +0000 | [diff] [blame] | 710 | |
commit-bot@chromium.org | 7669a77 | 2014-03-27 15:30:35 +0000 | [diff] [blame] | 711 | // make rgb premultiplied |
| 712 | if (255 != a) { |
| 713 | r = SkAlphaMul(r, a); |
| 714 | g = SkAlphaMul(g, a); |
| 715 | b = SkAlphaMul(b, a); |
| 716 | } |
| 717 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 718 | if (kARGB_4444_SkColorType == pmap.colorType()) { |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 719 | v = pack_8888_to_4444(a, r, g, b); |
| 720 | } else { |
| 721 | v = SkPackRGB16(r >> (8 - SK_R16_BITS), |
| 722 | g >> (8 - SK_G16_BITS), |
| 723 | b >> (8 - SK_B16_BITS)); |
| 724 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 725 | while (--height >= 0) { |
| 726 | sk_memset16(p, v, width); |
| 727 | p = (uint16_t*)((char*)p + rowBytes); |
| 728 | } |
| 729 | break; |
| 730 | } |
commit-bot@chromium.org | 7669a77 | 2014-03-27 15:30:35 +0000 | [diff] [blame] | 731 | case kBGRA_8888_SkColorType: |
| 732 | case kRGBA_8888_SkColorType: { |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 733 | uint32_t* p = pmap.writable_addr32(area.fLeft, area.fTop); |
commit-bot@chromium.org | 7669a77 | 2014-03-27 15:30:35 +0000 | [diff] [blame] | 734 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 735 | if (255 != a && kPremul_SkAlphaType == pmap.alphaType()) { |
commit-bot@chromium.org | 7669a77 | 2014-03-27 15:30:35 +0000 | [diff] [blame] | 736 | r = SkAlphaMul(r, a); |
| 737 | g = SkAlphaMul(g, a); |
| 738 | b = SkAlphaMul(b, a); |
| 739 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 740 | uint32_t v = kRGBA_8888_SkColorType == pmap.colorType() ? |
| 741 | SkPackARGB_as_RGBA(a, r, g, b) : SkPackARGB_as_BGRA(a, r, g, b); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 742 | |
| 743 | while (--height >= 0) { |
| 744 | sk_memset32(p, v, width); |
| 745 | p = (uint32_t*)((char*)p + rowBytes); |
| 746 | } |
| 747 | break; |
| 748 | } |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 749 | default: |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 750 | return false; // no change, so don't call notifyPixelsChanged() |
| 751 | } |
| 752 | return true; |
| 753 | } |
| 754 | |
| 755 | void SkBitmap::internalErase(const SkIRect& area, U8CPU a, U8CPU r, U8CPU g, U8CPU b) const { |
| 756 | #ifdef SK_DEBUG |
| 757 | SkDEBUGCODE(this->validate();) |
| 758 | SkASSERT(!area.isEmpty()); |
| 759 | { |
| 760 | SkIRect total = { 0, 0, this->width(), this->height() }; |
| 761 | SkASSERT(total.contains(area)); |
| 762 | } |
| 763 | #endif |
| 764 | |
| 765 | switch (fInfo.colorType()) { |
| 766 | case kUnknown_SkColorType: |
| 767 | case kIndex_8_SkColorType: |
| 768 | // TODO: can we ASSERT that we never get here? |
| 769 | return; // can't erase. Should we bzero so the memory is not uninitialized? |
| 770 | default: |
| 771 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 772 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 773 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 774 | SkAutoPixmapUnlock result; |
| 775 | if (!this->requestLock(&result)) { |
| 776 | return; |
| 777 | } |
| 778 | |
| 779 | if (internal_erase(result.pixmap(), area, a, r, g, b)) { |
| 780 | this->notifyPixelsChanged(); |
| 781 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 782 | } |
| 783 | |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 784 | void SkBitmap::eraseARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b) const { |
reed@google.com | 92833f9 | 2013-06-28 19:47:43 +0000 | [diff] [blame] | 785 | SkIRect area = { 0, 0, this->width(), this->height() }; |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 786 | if (!area.isEmpty()) { |
| 787 | this->internalErase(area, a, r, g, b); |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | void SkBitmap::eraseArea(const SkIRect& rect, SkColor c) const { |
reed@google.com | 92833f9 | 2013-06-28 19:47:43 +0000 | [diff] [blame] | 792 | SkIRect area = { 0, 0, this->width(), this->height() }; |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 793 | if (area.intersect(rect)) { |
| 794 | this->internalErase(area, SkColorGetA(c), SkColorGetR(c), |
| 795 | SkColorGetG(c), SkColorGetB(c)); |
| 796 | } |
| 797 | } |
| 798 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 799 | ////////////////////////////////////////////////////////////////////////////////////// |
| 800 | ////////////////////////////////////////////////////////////////////////////////////// |
| 801 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 802 | bool SkBitmap::extractSubset(SkBitmap* result, const SkIRect& subset) const { |
| 803 | SkDEBUGCODE(this->validate();) |
| 804 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 805 | if (NULL == result || NULL == fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 806 | return false; // no src pixels |
| 807 | } |
| 808 | |
| 809 | SkIRect srcRect, r; |
| 810 | srcRect.set(0, 0, this->width(), this->height()); |
| 811 | if (!r.intersect(srcRect, subset)) { |
| 812 | return false; // r is empty (i.e. no intersection) |
| 813 | } |
| 814 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 815 | if (fPixelRef->getTexture() != NULL) { |
| 816 | // Do a deep copy |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 817 | SkPixelRef* pixelRef = fPixelRef->deepCopy(this->colorType(), this->profileType(), &subset); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 818 | if (pixelRef != NULL) { |
| 819 | SkBitmap dst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 820 | dst.setInfo(SkImageInfo::Make(subset.width(), subset.height(), |
| 821 | this->colorType(), this->alphaType())); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 822 | dst.setIsVolatile(this->isVolatile()); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 823 | dst.setPixelRef(pixelRef)->unref(); |
| 824 | SkDEBUGCODE(dst.validate()); |
| 825 | result->swap(dst); |
| 826 | return true; |
| 827 | } |
| 828 | } |
| 829 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 830 | // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have |
| 831 | // exited above. |
| 832 | SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width())); |
| 833 | SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height())); |
| 834 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 835 | SkBitmap dst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 836 | dst.setInfo(SkImageInfo::Make(r.width(), r.height(), this->colorType(), this->alphaType()), |
| 837 | this->rowBytes()); |
skyostil@google.com | 0eb7576 | 2012-01-16 10:45:53 +0000 | [diff] [blame] | 838 | dst.setIsVolatile(this->isVolatile()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 839 | |
| 840 | if (fPixelRef) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 841 | SkIPoint origin = fPixelRefOrigin; |
| 842 | origin.fX += r.fLeft; |
| 843 | origin.fY += r.fTop; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 844 | // share the pixelref with a custom offset |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 845 | dst.setPixelRef(fPixelRef, origin); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 846 | } |
| 847 | SkDEBUGCODE(dst.validate();) |
| 848 | |
| 849 | // we know we're good, so commit to result |
| 850 | result->swap(dst); |
| 851 | return true; |
| 852 | } |
| 853 | |
| 854 | /////////////////////////////////////////////////////////////////////////////// |
| 855 | |
| 856 | #include "SkCanvas.h" |
| 857 | #include "SkPaint.h" |
| 858 | |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 859 | bool SkBitmap::canCopyTo(SkColorType dstColorType) const { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 860 | const SkColorType srcCT = this->colorType(); |
| 861 | |
| 862 | if (srcCT == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 863 | return false; |
| 864 | } |
| 865 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 866 | bool sameConfigs = (srcCT == dstColorType); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 867 | switch (dstColorType) { |
| 868 | case kAlpha_8_SkColorType: |
| 869 | case kRGB_565_SkColorType: |
commit-bot@chromium.org | 60b5dce | 2014-04-22 20:24:33 +0000 | [diff] [blame] | 870 | case kRGBA_8888_SkColorType: |
| 871 | case kBGRA_8888_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 872 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 873 | case kIndex_8_SkColorType: |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 874 | if (!sameConfigs) { |
| 875 | return false; |
| 876 | } |
| 877 | break; |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 878 | case kARGB_4444_SkColorType: |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 879 | return sameConfigs || kN32_SkColorType == srcCT || kIndex_8_SkColorType == srcCT; |
reed | 0c9b1a8 | 2015-03-17 17:44:06 -0700 | [diff] [blame] | 880 | case kGray_8_SkColorType: |
| 881 | switch (srcCT) { |
| 882 | case kGray_8_SkColorType: |
| 883 | case kRGBA_8888_SkColorType: |
| 884 | case kBGRA_8888_SkColorType: |
| 885 | return true; |
| 886 | default: |
| 887 | break; |
| 888 | } |
| 889 | return false; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 890 | default: |
| 891 | return false; |
| 892 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 893 | return true; |
| 894 | } |
| 895 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 896 | bool SkBitmap::readPixels(const SkImageInfo& requestedDstInfo, void* dstPixels, size_t dstRB, |
| 897 | int x, int y) const { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 898 | SkAutoPixmapUnlock src; |
| 899 | if (!this->requestLock(&src)) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 900 | return false; |
| 901 | } |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 902 | return src.pixmap().readPixels(requestedDstInfo, dstPixels, dstRB, x, y); |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 903 | } |
| 904 | |
| 905 | bool SkBitmap::copyTo(SkBitmap* dst, SkColorType dstColorType, Allocator* alloc) const { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 906 | if (!this->canCopyTo(dstColorType)) { |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 907 | return false; |
| 908 | } |
| 909 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 910 | // if we have a texture, first get those pixels |
| 911 | SkBitmap tmpSrc; |
| 912 | const SkBitmap* src = this; |
| 913 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 914 | if (fPixelRef) { |
| 915 | SkIRect subset; |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 916 | subset.setXYWH(fPixelRefOrigin.fX, fPixelRefOrigin.fY, |
| 917 | fInfo.width(), fInfo.height()); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 918 | if (fPixelRef->readPixels(&tmpSrc, &subset)) { |
scroggo | 0187dc2 | 2014-06-05 11:18:04 -0700 | [diff] [blame] | 919 | if (fPixelRef->info().alphaType() == kUnpremul_SkAlphaType) { |
| 920 | // FIXME: The only meaningful implementation of readPixels |
| 921 | // (GrPixelRef) assumes premultiplied pixels. |
| 922 | return false; |
| 923 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 924 | SkASSERT(tmpSrc.width() == this->width()); |
| 925 | SkASSERT(tmpSrc.height() == this->height()); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 926 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 927 | // did we get lucky and we can just return tmpSrc? |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 928 | if (tmpSrc.colorType() == dstColorType && NULL == alloc) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 929 | dst->swap(tmpSrc); |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 930 | // If the result is an exact copy, clone the gen ID. |
| 931 | if (dst->pixelRef() && dst->pixelRef()->info() == fPixelRef->info()) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 932 | dst->pixelRef()->cloneGenID(*fPixelRef); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 933 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 934 | return true; |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 935 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 936 | |
| 937 | // fall through to the raster case |
| 938 | src = &tmpSrc; |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 939 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 940 | } |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 941 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 942 | SkAutoPixmapUnlock srcUnlocker; |
| 943 | if (!src->requestLock(&srcUnlocker)) { |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 944 | return false; |
| 945 | } |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 946 | const SkPixmap& srcPM = srcUnlocker.pixmap(); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 947 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 948 | const SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 949 | SkBitmap tmpDst; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 950 | if (!tmpDst.setInfo(dstInfo)) { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 951 | return false; |
| 952 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 953 | |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 954 | // allocate colortable if srcConfig == kIndex8_Config |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 955 | SkAutoTUnref<SkColorTable> ctable; |
| 956 | if (dstColorType == kIndex_8_SkColorType) { |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 957 | ctable.reset(SkRef(srcPM.ctable())); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 958 | } |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 959 | if (!tmpDst.tryAllocPixels(alloc, ctable)) { |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 960 | return false; |
| 961 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 962 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 963 | SkAutoPixmapUnlock dstUnlocker; |
| 964 | if (!tmpDst.requestLock(&dstUnlocker)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 965 | return false; |
| 966 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 967 | |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 968 | if (!srcPM.readPixels(dstUnlocker.pixmap())) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 969 | return false; |
| 970 | } |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 971 | |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 972 | // (for BitmapHeap) Clone the pixelref genID even though we have a new pixelref. |
| 973 | // The old copyTo impl did this, so we continue it for now. |
| 974 | // |
| 975 | // TODO: should we ignore rowbytes (i.e. getSize)? Then it could just be |
| 976 | // if (src_pixelref->info == dst_pixelref->info) |
| 977 | // |
reed | 95d343f | 2015-05-23 13:21:06 -0700 | [diff] [blame] | 978 | if (srcPM.colorType() == dstColorType && tmpDst.getSize() == srcPM.getSize64()) { |
reed | b184f7f | 2014-07-13 04:32:32 -0700 | [diff] [blame] | 979 | SkPixelRef* dstPixelRef = tmpDst.pixelRef(); |
| 980 | if (dstPixelRef->info() == fPixelRef->info()) { |
| 981 | dstPixelRef->cloneGenID(*fPixelRef); |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 982 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 983 | } |
| 984 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 985 | dst->swap(tmpDst); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 986 | return true; |
| 987 | } |
| 988 | |
commit-bot@chromium.org | fab349c | 2014-03-05 02:34:58 +0000 | [diff] [blame] | 989 | bool SkBitmap::deepCopyTo(SkBitmap* dst) const { |
reed | e4538f5 | 2014-06-11 06:09:50 -0700 | [diff] [blame] | 990 | const SkColorType dstCT = this->colorType(); |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 991 | const SkColorProfileType dstPT = this->profileType(); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 992 | |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 993 | if (!this->canCopyTo(dstCT)) { |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 994 | return false; |
| 995 | } |
| 996 | |
| 997 | // If we have a PixelRef, and it supports deep copy, use it. |
| 998 | // Currently supported only by texture-backed bitmaps. |
| 999 | if (fPixelRef) { |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 1000 | SkPixelRef* pixelRef = fPixelRef->deepCopy(dstCT, dstPT, NULL); |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 1001 | if (pixelRef) { |
| 1002 | uint32_t rowBytes; |
jvanverth | fa1e8a7 | 2014-12-22 08:31:49 -0800 | [diff] [blame] | 1003 | if (this->colorType() == dstCT && this->profileType() == dstPT) { |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 1004 | // Since there is no subset to pass to deepCopy, and deepCopy |
| 1005 | // succeeded, the new pixel ref must be identical. |
| 1006 | SkASSERT(fPixelRef->info() == pixelRef->info()); |
| 1007 | pixelRef->cloneGenID(*fPixelRef); |
| 1008 | // Use the same rowBytes as the original. |
| 1009 | rowBytes = fRowBytes; |
| 1010 | } else { |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1011 | // 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] | 1012 | rowBytes = 0; |
| 1013 | } |
| 1014 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 1015 | const SkImageInfo info = fInfo.makeColorType(dstCT); |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1016 | if (!dst->setInfo(info, rowBytes)) { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1017 | return false; |
| 1018 | } |
commit-bot@chromium.org | eeef0cc | 2014-05-21 15:58:00 +0000 | [diff] [blame] | 1019 | dst->setPixelRef(pixelRef, fPixelRefOrigin)->unref(); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 1020 | return true; |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | if (this->getTexture()) { |
| 1025 | return false; |
| 1026 | } else { |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 1027 | return this->copyTo(dst, dstCT, NULL); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 1028 | } |
| 1029 | } |
| 1030 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1031 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1032 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1033 | static void rect_memset(uint8_t* array, U8CPU value, SkISize size, size_t rowBytes) { |
| 1034 | for (int y = 0; y < size.height(); ++y) { |
| 1035 | memset(array, value, size.width()); |
| 1036 | array += rowBytes; |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 1037 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1038 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 1039 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1040 | static void get_bitmap_alpha(const SkPixmap& pmap, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
| 1041 | SkColorType colorType = pmap.colorType(); |
| 1042 | int w = pmap.width(); |
| 1043 | int h = pmap.height(); |
| 1044 | size_t rb = pmap.rowBytes(); |
| 1045 | |
| 1046 | if (kAlpha_8_SkColorType == colorType && !pmap.isOpaque()) { |
| 1047 | const uint8_t* s = pmap.addr8(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1048 | while (--h >= 0) { |
| 1049 | memcpy(alpha, s, w); |
| 1050 | s += rb; |
| 1051 | alpha += alphaRowBytes; |
| 1052 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1053 | } else if (kN32_SkColorType == colorType && !pmap.isOpaque()) { |
| 1054 | const SkPMColor* SK_RESTRICT s = pmap.addr32(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1055 | while (--h >= 0) { |
| 1056 | for (int x = 0; x < w; x++) { |
| 1057 | alpha[x] = SkGetPackedA32(s[x]); |
| 1058 | } |
| 1059 | s = (const SkPMColor*)((const char*)s + rb); |
| 1060 | alpha += alphaRowBytes; |
| 1061 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1062 | } else if (kARGB_4444_SkColorType == colorType && !pmap.isOpaque()) { |
| 1063 | const SkPMColor16* SK_RESTRICT s = pmap.addr16(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1064 | while (--h >= 0) { |
| 1065 | for (int x = 0; x < w; x++) { |
| 1066 | alpha[x] = SkPacked4444ToA32(s[x]); |
| 1067 | } |
| 1068 | s = (const SkPMColor16*)((const char*)s + rb); |
| 1069 | alpha += alphaRowBytes; |
| 1070 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1071 | } else if (kIndex_8_SkColorType == colorType && !pmap.isOpaque()) { |
| 1072 | const SkColorTable* ct = pmap.ctable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1073 | if (ct) { |
mtklein | 775b819 | 2014-12-02 09:11:25 -0800 | [diff] [blame] | 1074 | const SkPMColor* SK_RESTRICT table = ct->readColors(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1075 | const uint8_t* SK_RESTRICT s = pmap.addr8(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1076 | while (--h >= 0) { |
| 1077 | for (int x = 0; x < w; x++) { |
| 1078 | alpha[x] = SkGetPackedA32(table[s[x]]); |
| 1079 | } |
| 1080 | s += rb; |
| 1081 | alpha += alphaRowBytes; |
| 1082 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1083 | } |
| 1084 | } else { // src is opaque, so just fill alpha[] with 0xFF |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1085 | rect_memset(alpha, 0xFF, pmap.info().dimensions(), alphaRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1086 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | static bool GetBitmapAlpha(const SkBitmap& src, uint8_t* SK_RESTRICT alpha, int alphaRowBytes) { |
| 1090 | SkASSERT(alpha != NULL); |
| 1091 | SkASSERT(alphaRowBytes >= src.width()); |
| 1092 | |
| 1093 | SkAutoPixmapUnlock apl; |
| 1094 | if (!src.requestLock(&apl)) { |
| 1095 | rect_memset(alpha, 0, src.info().dimensions(), alphaRowBytes); |
| 1096 | return false; |
| 1097 | } |
| 1098 | get_bitmap_alpha(apl.pixmap(), alpha, alphaRowBytes); |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 1099 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1100 | } |
| 1101 | |
| 1102 | #include "SkPaint.h" |
| 1103 | #include "SkMaskFilter.h" |
| 1104 | #include "SkMatrix.h" |
| 1105 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1106 | bool SkBitmap::extractAlpha(SkBitmap* dst, const SkPaint* paint, |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 1107 | Allocator *allocator, SkIPoint* offset) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1108 | SkDEBUGCODE(this->validate();) |
| 1109 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1110 | SkBitmap tmpBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1111 | SkMatrix identity; |
| 1112 | SkMask srcM, dstM; |
| 1113 | |
| 1114 | srcM.fBounds.set(0, 0, this->width(), this->height()); |
| 1115 | srcM.fRowBytes = SkAlign4(this->width()); |
| 1116 | srcM.fFormat = SkMask::kA8_Format; |
| 1117 | |
| 1118 | SkMaskFilter* filter = paint ? paint->getMaskFilter() : NULL; |
| 1119 | |
| 1120 | // compute our (larger?) dst bounds if we have a filter |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1121 | if (filter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1122 | identity.reset(); |
| 1123 | srcM.fImage = NULL; |
| 1124 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1125 | goto NO_FILTER_CASE; |
| 1126 | } |
| 1127 | dstM.fRowBytes = SkAlign4(dstM.fBounds.width()); |
| 1128 | } else { |
| 1129 | NO_FILTER_CASE: |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1130 | tmpBitmap.setInfo(SkImageInfo::MakeA8(this->width(), this->height()), srcM.fRowBytes); |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1131 | if (!tmpBitmap.tryAllocPixels(allocator, NULL)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1132 | // Allocation of pixels for alpha bitmap failed. |
| 1133 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1134 | tmpBitmap.width(), tmpBitmap.height()); |
| 1135 | return false; |
| 1136 | } |
| 1137 | GetBitmapAlpha(*this, tmpBitmap.getAddr8(0, 0), srcM.fRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1138 | if (offset) { |
| 1139 | offset->set(0, 0); |
| 1140 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1141 | tmpBitmap.swap(*dst); |
| 1142 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1143 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1144 | srcM.fImage = SkMask::AllocImage(srcM.computeImageSize()); |
| 1145 | SkAutoMaskFreeImage srcCleanup(srcM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1146 | |
| 1147 | GetBitmapAlpha(*this, srcM.fImage, srcM.fRowBytes); |
| 1148 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1149 | goto NO_FILTER_CASE; |
| 1150 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1151 | SkAutoMaskFreeImage dstCleanup(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1152 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1153 | tmpBitmap.setInfo(SkImageInfo::MakeA8(dstM.fBounds.width(), dstM.fBounds.height()), |
| 1154 | dstM.fRowBytes); |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1155 | if (!tmpBitmap.tryAllocPixels(allocator, NULL)) { |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1156 | // Allocation of pixels for alpha bitmap failed. |
| 1157 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1158 | tmpBitmap.width(), tmpBitmap.height()); |
| 1159 | return false; |
| 1160 | } |
| 1161 | memcpy(tmpBitmap.getPixels(), dstM.fImage, dstM.computeImageSize()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1162 | if (offset) { |
| 1163 | offset->set(dstM.fBounds.fLeft, dstM.fBounds.fTop); |
| 1164 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1165 | SkDEBUGCODE(tmpBitmap.validate();) |
| 1166 | |
| 1167 | tmpBitmap.swap(*dst); |
| 1168 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1169 | } |
| 1170 | |
| 1171 | /////////////////////////////////////////////////////////////////////////////// |
| 1172 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1173 | static void write_raw_pixels(SkWriteBuffer* buffer, const SkPixmap& pmap) { |
| 1174 | const SkImageInfo& info = pmap.info(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1175 | const size_t snugRB = info.width() * info.bytesPerPixel(); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1176 | const char* src = (const char*)pmap.addr(); |
| 1177 | const size_t ramRB = pmap.rowBytes(); |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1178 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1179 | buffer->write32(SkToU32(snugRB)); |
| 1180 | info.flatten(*buffer); |
| 1181 | |
| 1182 | const size_t size = snugRB * info.height(); |
| 1183 | SkAutoMalloc storage(size); |
| 1184 | char* dst = (char*)storage.get(); |
| 1185 | for (int y = 0; y < info.height(); ++y) { |
| 1186 | memcpy(dst, src, snugRB); |
| 1187 | dst += snugRB; |
| 1188 | src += ramRB; |
| 1189 | } |
| 1190 | buffer->writeByteArray(storage.get(), size); |
| 1191 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1192 | const SkColorTable* ct = pmap.ctable(); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1193 | if (kIndex_8_SkColorType == info.colorType() && ct) { |
| 1194 | buffer->writeBool(true); |
| 1195 | ct->writeToBuffer(*buffer); |
| 1196 | } else { |
| 1197 | buffer->writeBool(false); |
| 1198 | } |
| 1199 | } |
| 1200 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1201 | void SkBitmap::WriteRawPixels(SkWriteBuffer* buffer, const SkBitmap& bitmap) { |
| 1202 | const SkImageInfo info = bitmap.info(); |
| 1203 | if (0 == info.width() || 0 == info.height() || NULL == bitmap.pixelRef()) { |
| 1204 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 1205 | return; |
| 1206 | } |
| 1207 | |
| 1208 | SkAutoPixmapUnlock result; |
| 1209 | if (!bitmap.requestLock(&result)) { |
| 1210 | buffer->writeUInt(0); // instead of snugRB, signaling no pixels |
| 1211 | return; |
| 1212 | } |
| 1213 | |
| 1214 | write_raw_pixels(buffer, result.pixmap()); |
| 1215 | } |
| 1216 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1217 | bool SkBitmap::ReadRawPixels(SkReadBuffer* buffer, SkBitmap* bitmap) { |
| 1218 | const size_t snugRB = buffer->readUInt(); |
| 1219 | if (0 == snugRB) { // no pixels |
| 1220 | return false; |
| 1221 | } |
| 1222 | |
| 1223 | SkImageInfo info; |
| 1224 | info.unflatten(*buffer); |
| 1225 | |
sugoi | ca95c19 | 2014-07-08 09:18:48 -0700 | [diff] [blame] | 1226 | // If there was an error reading "info", don't use it to compute minRowBytes() |
| 1227 | if (!buffer->validate(true)) { |
| 1228 | return false; |
| 1229 | } |
| 1230 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1231 | const size_t ramRB = info.minRowBytes(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1232 | const int height = SkMax32(info.height(), 0); |
| 1233 | const uint64_t snugSize = sk_64_mul(snugRB, height); |
| 1234 | const uint64_t ramSize = sk_64_mul(ramRB, height); |
| 1235 | static const uint64_t max_size_t = (size_t)(-1); |
| 1236 | if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { |
commit-bot@chromium.org | 0585843 | 2014-05-30 01:06:44 +0000 | [diff] [blame] | 1237 | return false; |
| 1238 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1239 | |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1240 | SkAutoDataUnref data(SkData::NewUninitialized(SkToSizeT(ramSize))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame^] | 1241 | unsigned char* dst = (unsigned char*)data->writable_data(); |
sugoi | bd0d9da | 2015-01-07 08:47:44 -0800 | [diff] [blame] | 1242 | buffer->readByteArray(dst, SkToSizeT(snugSize)); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1243 | |
| 1244 | if (snugSize != ramSize) { |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame^] | 1245 | const unsigned char* srcRow = dst + snugRB * (height - 1); |
| 1246 | unsigned char* dstRow = dst + ramRB * (height - 1); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1247 | for (int y = height - 1; y >= 1; --y) { |
| 1248 | memmove(dstRow, srcRow, snugRB); |
| 1249 | srcRow -= snugRB; |
| 1250 | dstRow -= ramRB; |
| 1251 | } |
| 1252 | SkASSERT(srcRow == dstRow); // first row does not need to be moved |
| 1253 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1254 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1255 | SkAutoTUnref<SkColorTable> ctable; |
| 1256 | if (buffer->readBool()) { |
| 1257 | ctable.reset(SkNEW_ARGS(SkColorTable, (*buffer))); |
robertphillips | 2893784 | 2015-06-08 07:10:49 -0700 | [diff] [blame^] | 1258 | |
| 1259 | unsigned char maxIndex = ctable->count() ? ctable->count()-1 : 0; |
| 1260 | for (uint64_t i = 0; i < ramSize; ++i) { |
| 1261 | dst[i] = SkTMin(dst[i], maxIndex); |
| 1262 | } |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1263 | } |
skia.committer@gmail.com | 3c134a9 | 2014-05-24 03:05:26 +0000 | [diff] [blame] | 1264 | |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1265 | SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewWithData(info, info.minRowBytes(), |
| 1266 | ctable.get(), data.get())); |
sugoi | 6af3147 | 2015-01-28 13:15:32 -0800 | [diff] [blame] | 1267 | if (!pr.get()) { |
| 1268 | return false; |
| 1269 | } |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1270 | bitmap->setInfo(pr->info()); |
commit-bot@chromium.org | 968edca | 2014-05-23 13:21:55 +0000 | [diff] [blame] | 1271 | bitmap->setPixelRef(pr, 0, 0); |
| 1272 | return true; |
| 1273 | } |
| 1274 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1275 | enum { |
| 1276 | SERIALIZE_PIXELTYPE_NONE, |
djsollen@google.com | 21830d9 | 2012-08-07 19:49:41 +0000 | [diff] [blame] | 1277 | SERIALIZE_PIXELTYPE_REF_DATA |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1278 | }; |
| 1279 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1280 | /////////////////////////////////////////////////////////////////////////////// |
| 1281 | |
| 1282 | SkBitmap::RLEPixels::RLEPixels(int width, int height) { |
| 1283 | fHeight = height; |
commit-bot@chromium.org | 235002f | 2013-10-09 18:39:59 +0000 | [diff] [blame] | 1284 | fYPtrs = (uint8_t**)sk_calloc_throw(height * sizeof(uint8_t*)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1285 | } |
| 1286 | |
| 1287 | SkBitmap::RLEPixels::~RLEPixels() { |
| 1288 | sk_free(fYPtrs); |
| 1289 | } |
| 1290 | |
| 1291 | /////////////////////////////////////////////////////////////////////////////// |
| 1292 | |
| 1293 | #ifdef SK_DEBUG |
| 1294 | void SkBitmap::validate() const { |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1295 | fInfo.validate(); |
commit-bot@chromium.org | d5414e5 | 2014-02-13 22:30:38 +0000 | [diff] [blame] | 1296 | |
| 1297 | // ImageInfo may not require this, but Bitmap ensures that opaque-only |
| 1298 | // colorTypes report opaque for their alphatype |
| 1299 | if (kRGB_565_SkColorType == fInfo.colorType()) { |
| 1300 | SkASSERT(kOpaque_SkAlphaType == fInfo.alphaType()); |
| 1301 | } |
| 1302 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1303 | SkASSERT(fInfo.validRowBytes(fRowBytes)); |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1304 | uint8_t allFlags = kImageIsVolatile_Flag; |
scroggo@google.com | 8e990eb | 2013-06-14 15:55:56 +0000 | [diff] [blame] | 1305 | #ifdef SK_BUILD_FOR_ANDROID |
| 1306 | allFlags |= kHasHardwareMipMap_Flag; |
| 1307 | #endif |
scroggo | 0847059 | 2014-07-15 19:56:48 -0700 | [diff] [blame] | 1308 | SkASSERT((~allFlags & fFlags) == 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1309 | SkASSERT(fPixelLockCount >= 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1310 | |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1311 | if (fPixels) { |
| 1312 | SkASSERT(fPixelRef); |
robertphillips | e77dadd | 2014-11-21 05:50:21 -0800 | [diff] [blame] | 1313 | SkASSERT(fPixelLockCount > 0); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1314 | SkASSERT(fPixelRef->isLocked()); |
| 1315 | SkASSERT(fPixelRef->rowBytes() == fRowBytes); |
| 1316 | SkASSERT(fPixelRefOrigin.fX >= 0); |
| 1317 | SkASSERT(fPixelRefOrigin.fY >= 0); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1318 | SkASSERT(fPixelRef->info().width() >= (int)this->width() + fPixelRefOrigin.fX); |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 1319 | SkASSERT(fPixelRef->info().height() >= (int)this->height() + fPixelRefOrigin.fY); |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1320 | SkASSERT(fPixelRef->rowBytes() >= fInfo.minRowBytes()); |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1321 | } else { |
| 1322 | SkASSERT(NULL == fColorTable); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1323 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1324 | } |
| 1325 | #endif |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1326 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 1327 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1328 | void SkBitmap::toString(SkString* str) const { |
| 1329 | |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1330 | static const char* gColorTypeNames[kLastEnum_SkColorType + 1] = { |
| 1331 | "UNKNOWN", "A8", "565", "4444", "RGBA", "BGRA", "INDEX8", |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1332 | }; |
| 1333 | |
| 1334 | str->appendf("bitmap: ((%d, %d) %s", this->width(), this->height(), |
commit-bot@chromium.org | cba7378 | 2014-05-29 15:57:47 +0000 | [diff] [blame] | 1335 | gColorTypeNames[this->colorType()]); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1336 | |
| 1337 | str->append(" ("); |
| 1338 | if (this->isOpaque()) { |
| 1339 | str->append("opaque"); |
| 1340 | } else { |
| 1341 | str->append("transparent"); |
| 1342 | } |
| 1343 | if (this->isImmutable()) { |
| 1344 | str->append(", immutable"); |
| 1345 | } else { |
| 1346 | str->append(", not-immutable"); |
| 1347 | } |
| 1348 | str->append(")"); |
| 1349 | |
| 1350 | SkPixelRef* pr = this->pixelRef(); |
| 1351 | if (NULL == pr) { |
| 1352 | // show null or the explicit pixel address (rare) |
| 1353 | str->appendf(" pixels:%p", this->getPixels()); |
| 1354 | } else { |
| 1355 | const char* uri = pr->getURI(); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1356 | if (uri) { |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1357 | str->appendf(" uri:\"%s\"", uri); |
| 1358 | } else { |
| 1359 | str->appendf(" pixelref:%p", pr); |
| 1360 | } |
| 1361 | } |
| 1362 | |
| 1363 | str->append(")"); |
| 1364 | } |
| 1365 | #endif |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1366 | |
| 1367 | /////////////////////////////////////////////////////////////////////////////// |
| 1368 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1369 | bool SkBitmap::requestLock(SkAutoPixmapUnlock* result) const { |
| 1370 | SkASSERT(result); |
| 1371 | |
| 1372 | SkPixelRef* pr = fPixelRef; |
| 1373 | if (NULL == pr) { |
| 1374 | return false; |
| 1375 | } |
| 1376 | |
| 1377 | SkPixelRef::LockRequest req = { fInfo.dimensions(), kNone_SkFilterQuality }; |
| 1378 | SkPixelRef::LockResult res; |
| 1379 | if (pr->requestLock(req, &res)) { |
reed | e800657 | 2015-05-28 14:06:06 -0700 | [diff] [blame] | 1380 | SkASSERT(res.fPixels); |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1381 | // The bitmap may be a subset of the pixelref's dimensions |
| 1382 | SkASSERT(fPixelRefOrigin.x() + fInfo.width() <= res.fSize.width()); |
| 1383 | SkASSERT(fPixelRefOrigin.y() + fInfo.height() <= res.fSize.height()); |
| 1384 | const void* addr = (const char*)res.fPixels + SkColorTypeComputeOffset(fInfo.colorType(), |
| 1385 | fPixelRefOrigin.x(), |
| 1386 | fPixelRefOrigin.y(), |
| 1387 | res.fRowBytes); |
| 1388 | |
| 1389 | result->reset(SkPixmap(this->info(), addr, res.fRowBytes, res.fCTable), |
| 1390 | res.fUnlockProc, res.fUnlockContext); |
| 1391 | return true; |
| 1392 | } |
| 1393 | return false; |
| 1394 | } |
| 1395 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 1396 | bool SkBitmap::peekPixels(SkPixmap* pmap) const { |
| 1397 | if (fPixels) { |
| 1398 | if (pmap) { |
| 1399 | pmap->reset(fInfo, fPixels, fRowBytes, fColorTable); |
| 1400 | } |
| 1401 | return true; |
| 1402 | } |
| 1403 | return false; |
| 1404 | } |
| 1405 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1406 | /////////////////////////////////////////////////////////////////////////////// |
| 1407 | |
commit-bot@chromium.org | 61e96cd | 2014-02-11 18:21:45 +0000 | [diff] [blame] | 1408 | #ifdef SK_DEBUG |
| 1409 | void SkImageInfo::validate() const { |
| 1410 | SkASSERT(fWidth >= 0); |
| 1411 | SkASSERT(fHeight >= 0); |
| 1412 | SkASSERT(SkColorTypeIsValid(fColorType)); |
| 1413 | SkASSERT(SkAlphaTypeIsValid(fAlphaType)); |
| 1414 | } |
| 1415 | #endif |