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" |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 17 | #include "SkOrderedReadBuffer.h" |
| 18 | #include "SkOrderedWriteBuffer.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 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 27 | struct MipLevel { |
| 28 | void* fPixels; |
| 29 | uint32_t fRowBytes; |
reed@android.com | f459a49 | 2009-03-27 12:33:50 +0000 | [diff] [blame] | 30 | uint32_t fWidth, fHeight; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 31 | }; |
| 32 | |
| 33 | struct SkBitmap::MipMap : SkNoncopyable { |
| 34 | int32_t fRefCnt; |
| 35 | int fLevelCount; |
| 36 | // MipLevel fLevel[fLevelCount]; |
| 37 | // Pixels[] |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 38 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | static MipMap* Alloc(int levelCount, size_t pixelSize) { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 40 | if (levelCount < 0) { |
| 41 | return NULL; |
| 42 | } |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 43 | int64_t size = (levelCount + 1) * sizeof(MipLevel); |
| 44 | size += sizeof(MipMap) + pixelSize; |
| 45 | if (!sk_64_isS32(size)) { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 46 | return NULL; |
| 47 | } |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 48 | MipMap* mm = (MipMap*)sk_malloc_throw(sk_64_asS32(size)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 49 | mm->fRefCnt = 1; |
| 50 | mm->fLevelCount = levelCount; |
| 51 | return mm; |
| 52 | } |
| 53 | |
| 54 | const MipLevel* levels() const { return (const MipLevel*)(this + 1); } |
| 55 | MipLevel* levels() { return (MipLevel*)(this + 1); } |
| 56 | |
| 57 | const void* pixels() const { return levels() + fLevelCount; } |
| 58 | void* pixels() { return levels() + fLevelCount; } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 59 | |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 60 | void ref() { |
| 61 | if (SK_MaxS32 == sk_atomic_inc(&fRefCnt)) { |
| 62 | sk_throw(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 63 | } |
| 64 | } |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 65 | void unref() { |
| 66 | SkASSERT(fRefCnt > 0); |
| 67 | if (sk_atomic_dec(&fRefCnt) == 1) { |
| 68 | sk_free(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | } |
| 70 | } |
| 71 | }; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 72 | |
| 73 | /////////////////////////////////////////////////////////////////////////////// |
| 74 | /////////////////////////////////////////////////////////////////////////////// |
| 75 | |
| 76 | SkBitmap::SkBitmap() { |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 77 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | SkBitmap::SkBitmap(const SkBitmap& src) { |
| 81 | SkDEBUGCODE(src.validate();) |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 82 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | *this = src; |
| 84 | SkDEBUGCODE(this->validate();) |
| 85 | } |
| 86 | |
| 87 | SkBitmap::~SkBitmap() { |
| 88 | SkDEBUGCODE(this->validate();) |
| 89 | this->freePixels(); |
| 90 | } |
| 91 | |
| 92 | SkBitmap& SkBitmap::operator=(const SkBitmap& src) { |
| 93 | if (this != &src) { |
| 94 | this->freePixels(); |
| 95 | memcpy(this, &src, sizeof(src)); |
| 96 | |
| 97 | // inc src reference counts |
reed@android.com | 83f7bc3 | 2009-07-17 02:42:41 +0000 | [diff] [blame] | 98 | SkSafeRef(src.fPixelRef); |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 99 | SkSafeRef(src.fMipMap); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 100 | |
| 101 | // we reset our locks if we get blown away |
| 102 | fPixelLockCount = 0; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 103 | |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 104 | if (fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 105 | // ignore the values from the memcpy |
| 106 | fPixels = NULL; |
| 107 | fColorTable = NULL; |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 108 | // Note that what to for genID is somewhat arbitrary. We have no |
| 109 | // way to track changes to raw pixels across multiple SkBitmaps. |
| 110 | // Would benefit from an SkRawPixelRef type created by |
| 111 | // setPixels. |
| 112 | // Just leave the memcpy'ed one but they'll get out of sync |
| 113 | // as soon either is modified. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 114 | } |
| 115 | } |
| 116 | |
| 117 | SkDEBUGCODE(this->validate();) |
| 118 | return *this; |
| 119 | } |
| 120 | |
| 121 | void SkBitmap::swap(SkBitmap& other) { |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 122 | SkTSwap(fColorTable, other.fColorTable); |
| 123 | SkTSwap(fPixelRef, other.fPixelRef); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 124 | SkTSwap(fPixelRefOrigin, other.fPixelRefOrigin); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 125 | SkTSwap(fPixelLockCount, other.fPixelLockCount); |
| 126 | SkTSwap(fMipMap, other.fMipMap); |
| 127 | SkTSwap(fPixels, other.fPixels); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 128 | SkTSwap(fRowBytes, other.fRowBytes); |
| 129 | SkTSwap(fWidth, other.fWidth); |
| 130 | SkTSwap(fHeight, other.fHeight); |
| 131 | SkTSwap(fConfig, other.fConfig); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 132 | SkTSwap(fAlphaType, other.fAlphaType); |
bsalomon@google.com | 586f48c | 2011-04-14 15:07:22 +0000 | [diff] [blame] | 133 | SkTSwap(fFlags, other.fFlags); |
| 134 | SkTSwap(fBytesPerPixel, other.fBytesPerPixel); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 135 | |
| 136 | SkDEBUGCODE(this->validate();) |
| 137 | } |
| 138 | |
| 139 | void SkBitmap::reset() { |
| 140 | this->freePixels(); |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 141 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | int SkBitmap::ComputeBytesPerPixel(SkBitmap::Config config) { |
| 145 | int bpp; |
| 146 | switch (config) { |
| 147 | case kNo_Config: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 148 | bpp = 0; // not applicable |
| 149 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | case kA8_Config: |
| 151 | case kIndex8_Config: |
| 152 | bpp = 1; |
| 153 | break; |
| 154 | case kRGB_565_Config: |
| 155 | case kARGB_4444_Config: |
| 156 | bpp = 2; |
| 157 | break; |
| 158 | case kARGB_8888_Config: |
| 159 | bpp = 4; |
| 160 | break; |
| 161 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 162 | SkDEBUGFAIL("unknown config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | bpp = 0; // error |
| 164 | break; |
| 165 | } |
| 166 | return bpp; |
| 167 | } |
| 168 | |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 169 | size_t SkBitmap::ComputeRowBytes(Config c, int width) { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 170 | if (width < 0) { |
| 171 | return 0; |
| 172 | } |
| 173 | |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 174 | int64_t rowBytes = 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | |
| 176 | switch (c) { |
| 177 | case kNo_Config: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 178 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 179 | case kA8_Config: |
| 180 | case kIndex8_Config: |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 181 | rowBytes = width; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 182 | break; |
| 183 | case kRGB_565_Config: |
| 184 | case kARGB_4444_Config: |
reed@google.com | 4856964 | 2013-12-30 19:21:22 +0000 | [diff] [blame] | 185 | // assign and then shift, so we don't overflow int |
| 186 | rowBytes = width; |
| 187 | rowBytes <<= 1; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | break; |
| 189 | case kARGB_8888_Config: |
reed@google.com | 4856964 | 2013-12-30 19:21:22 +0000 | [diff] [blame] | 190 | // assign and then shift, so we don't overflow int |
| 191 | rowBytes = width; |
| 192 | rowBytes <<= 2; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 193 | break; |
| 194 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 195 | SkDEBUGFAIL("unknown config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | break; |
| 197 | } |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 198 | return sk_64_isS32(rowBytes) ? sk_64_asS32(rowBytes) : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | } |
| 200 | |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 201 | int64_t SkBitmap::ComputeSize64(Config config, int width, int height) { |
| 202 | int64_t rowBytes = sk_64_mul(ComputeBytesPerPixel(config), width); |
| 203 | return rowBytes * height; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | size_t SkBitmap::ComputeSize(Config c, int width, int height) { |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 207 | int64_t size = SkBitmap::ComputeSize64(c, width, height); |
| 208 | return sk_64_isS32(size) ? sk_64_asS32(size) : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 209 | } |
| 210 | |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 211 | int64_t SkBitmap::ComputeSafeSize64(Config config, |
| 212 | uint32_t width, |
| 213 | uint32_t height, |
| 214 | size_t rowBytes) { |
| 215 | int64_t safeSize = 0; |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 216 | if (height > 0) { |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 217 | int64_t lastRow = sk_64_mul(ComputeBytesPerPixel(config), width); |
| 218 | safeSize = sk_64_mul(height - 1, rowBytes) + lastRow; |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 219 | } |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 220 | SkASSERT(safeSize >= 0); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 221 | return safeSize; |
| 222 | } |
| 223 | |
| 224 | size_t SkBitmap::ComputeSafeSize(Config config, |
| 225 | uint32_t width, |
| 226 | uint32_t height, |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 227 | size_t rowBytes) { |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 228 | int64_t safeSize = ComputeSafeSize64(config, width, height, rowBytes); |
| 229 | int32_t safeSize32 = (int32_t)safeSize; |
skia.committer@gmail.com | f5e1f63 | 2013-12-31 07:01:36 +0000 | [diff] [blame] | 230 | |
reed@google.com | 57212f9 | 2013-12-30 14:40:38 +0000 | [diff] [blame] | 231 | if (safeSize32 != safeSize) { |
| 232 | safeSize32 = 0; |
| 233 | } |
| 234 | return safeSize32; |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 235 | } |
| 236 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 237 | void SkBitmap::getBounds(SkRect* bounds) const { |
| 238 | SkASSERT(bounds); |
| 239 | bounds->set(0, 0, |
| 240 | SkIntToScalar(fWidth), SkIntToScalar(fHeight)); |
| 241 | } |
| 242 | |
reed@google.com | 80e1459 | 2012-03-16 14:58:07 +0000 | [diff] [blame] | 243 | void SkBitmap::getBounds(SkIRect* bounds) const { |
| 244 | SkASSERT(bounds); |
| 245 | bounds->set(0, 0, fWidth, fHeight); |
| 246 | } |
| 247 | |
reed@google.com | 86b2e43 | 2012-03-15 21:17:03 +0000 | [diff] [blame] | 248 | /////////////////////////////////////////////////////////////////////////////// |
| 249 | |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 250 | static bool validate_alphaType(SkBitmap::Config config, SkAlphaType alphaType, |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 251 | SkAlphaType* canonical = NULL) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 252 | switch (config) { |
| 253 | case SkBitmap::kNo_Config: |
| 254 | alphaType = kIgnore_SkAlphaType; |
| 255 | break; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 256 | case SkBitmap::kA8_Config: |
| 257 | if (kUnpremul_SkAlphaType == alphaType) { |
| 258 | alphaType = kPremul_SkAlphaType; |
| 259 | } |
| 260 | // fall-through |
| 261 | case SkBitmap::kIndex8_Config: |
| 262 | case SkBitmap::kARGB_4444_Config: |
| 263 | case SkBitmap::kARGB_8888_Config: |
| 264 | if (kIgnore_SkAlphaType == alphaType) { |
| 265 | return false; |
| 266 | } |
| 267 | break; |
| 268 | case SkBitmap::kRGB_565_Config: |
| 269 | alphaType = kOpaque_SkAlphaType; |
| 270 | break; |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 271 | default: |
| 272 | return false; |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 273 | } |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 274 | if (canonical) { |
| 275 | *canonical = alphaType; |
| 276 | } |
| 277 | return true; |
| 278 | } |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 279 | |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 280 | bool SkBitmap::setConfig(Config config, int width, int height, size_t rowBytes, |
| 281 | SkAlphaType alphaType) { |
| 282 | if ((width | height) < 0) { |
reed@google.com | 9cd697c | 2013-10-21 14:12:13 +0000 | [diff] [blame] | 283 | goto BAD_CONFIG; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 284 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | if (rowBytes == 0) { |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 286 | rowBytes = SkBitmap::ComputeRowBytes(config, width); |
halcanary@google.com | 4428734 | 2013-12-13 18:29:51 +0000 | [diff] [blame] | 287 | if (0 == rowBytes && kNo_Config != config && width > 0) { |
reed@google.com | 9cd697c | 2013-10-21 14:12:13 +0000 | [diff] [blame] | 288 | goto BAD_CONFIG; |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 289 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 290 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 291 | |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 292 | if (!validate_alphaType(config, alphaType, &alphaType)) { |
reed@google.com | 9cd697c | 2013-10-21 14:12:13 +0000 | [diff] [blame] | 293 | goto BAD_CONFIG; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | this->freePixels(); |
| 297 | |
| 298 | fConfig = SkToU8(config); |
| 299 | fAlphaType = SkToU8(alphaType); |
reed@android.com | f459a49 | 2009-03-27 12:33:50 +0000 | [diff] [blame] | 300 | fWidth = width; |
| 301 | fHeight = height; |
scroggo@google.com | e5f4824 | 2013-02-25 21:47:41 +0000 | [diff] [blame] | 302 | fRowBytes = SkToU32(rowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 303 | |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 304 | fBytesPerPixel = (uint8_t)ComputeBytesPerPixel(config); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 305 | |
| 306 | SkDEBUGCODE(this->validate();) |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 307 | return true; |
agl@chromium.org | 6b8cb25 | 2009-06-01 23:52:37 +0000 | [diff] [blame] | 308 | |
reed@android.com | 9e0c2fc | 2009-06-02 18:54:28 +0000 | [diff] [blame] | 309 | // if we got here, we had an error, so we reset the bitmap to empty |
reed@google.com | 9cd697c | 2013-10-21 14:12:13 +0000 | [diff] [blame] | 310 | BAD_CONFIG: |
agl@chromium.org | 6b8cb25 | 2009-06-01 23:52:37 +0000 | [diff] [blame] | 311 | this->reset(); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 312 | return false; |
| 313 | } |
| 314 | |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame] | 315 | bool SkBitmap::setConfig(const SkImageInfo& info, size_t rowBytes) { |
| 316 | return this->setConfig(SkImageInfoToBitmapConfig(info), info.fWidth, |
| 317 | info.fHeight, rowBytes, info.fAlphaType); |
| 318 | } |
| 319 | |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 320 | bool SkBitmap::setAlphaType(SkAlphaType alphaType) { |
| 321 | if (!validate_alphaType(this->config(), alphaType, &alphaType)) { |
| 322 | return false; |
| 323 | } |
| 324 | fAlphaType = SkToU8(alphaType); |
| 325 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | void SkBitmap::updatePixelsFromRef() const { |
| 329 | if (NULL != fPixelRef) { |
| 330 | if (fPixelLockCount > 0) { |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 331 | SkASSERT(fPixelRef->isLocked()); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 332 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 333 | void* p = fPixelRef->pixels(); |
| 334 | if (NULL != p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 335 | p = (char*)p |
reed@google.com | 303c475 | 2014-01-09 20:00:14 +0000 | [diff] [blame] | 336 | + fPixelRefOrigin.fY * fRowBytes |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 337 | + fPixelRefOrigin.fX * fBytesPerPixel; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 338 | } |
| 339 | fPixels = p; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 340 | fColorTable = fPixelRef->colorTable(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 341 | } else { |
| 342 | SkASSERT(0 == fPixelLockCount); |
| 343 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 344 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 345 | } |
| 346 | } |
| 347 | } |
| 348 | |
reed@google.com | 9230ea2 | 2013-12-09 22:01:03 +0000 | [diff] [blame] | 349 | static bool config_to_colorType(SkBitmap::Config config, SkColorType* ctOut) { |
| 350 | SkColorType ct; |
| 351 | switch (config) { |
| 352 | case SkBitmap::kA8_Config: |
| 353 | ct = kAlpha_8_SkColorType; |
| 354 | break; |
| 355 | case SkBitmap::kIndex8_Config: |
| 356 | ct = kIndex_8_SkColorType; |
| 357 | break; |
| 358 | case SkBitmap::kRGB_565_Config: |
| 359 | ct = kRGB_565_SkColorType; |
| 360 | break; |
| 361 | case SkBitmap::kARGB_4444_Config: |
| 362 | ct = kARGB_4444_SkColorType; |
| 363 | break; |
| 364 | case SkBitmap::kARGB_8888_Config: |
| 365 | ct = kPMColor_SkColorType; |
| 366 | break; |
| 367 | case SkBitmap::kNo_Config: |
| 368 | default: |
| 369 | return false; |
| 370 | } |
| 371 | if (ctOut) { |
| 372 | *ctOut = ct; |
| 373 | } |
| 374 | return true; |
| 375 | } |
| 376 | |
| 377 | bool SkBitmap::asImageInfo(SkImageInfo* info) const { |
| 378 | SkColorType ct; |
| 379 | if (!config_to_colorType(this->config(), &ct)) { |
| 380 | return false; |
| 381 | } |
| 382 | if (info) { |
| 383 | info->fWidth = fWidth; |
| 384 | info->fHeight = fHeight; |
| 385 | info->fAlphaType = this->alphaType(); |
| 386 | info->fColorType = ct; |
| 387 | } |
| 388 | return true; |
| 389 | } |
| 390 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 391 | SkPixelRef* SkBitmap::setPixelRef(SkPixelRef* pr, int dx, int dy) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 392 | #ifdef SK_DEBUG |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 393 | if (pr) { |
reed@google.com | dcea530 | 2014-01-03 13:43:01 +0000 | [diff] [blame] | 394 | SkImageInfo info; |
| 395 | if (this->asImageInfo(&info)) { |
| 396 | const SkImageInfo& prInfo = pr->info(); |
| 397 | SkASSERT(info.fWidth <= prInfo.fWidth); |
| 398 | SkASSERT(info.fHeight <= prInfo.fHeight); |
| 399 | SkASSERT(info.fColorType == prInfo.fColorType); |
| 400 | switch (prInfo.fAlphaType) { |
| 401 | case kIgnore_SkAlphaType: |
| 402 | SkASSERT(fAlphaType == kIgnore_SkAlphaType); |
| 403 | break; |
| 404 | case kOpaque_SkAlphaType: |
| 405 | case kPremul_SkAlphaType: |
| 406 | SkASSERT(info.fAlphaType == kOpaque_SkAlphaType || |
| 407 | info.fAlphaType == kPremul_SkAlphaType); |
| 408 | break; |
| 409 | case kUnpremul_SkAlphaType: |
| 410 | SkASSERT(info.fAlphaType == kOpaque_SkAlphaType || |
| 411 | info.fAlphaType == kUnpremul_SkAlphaType); |
| 412 | break; |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 417 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 418 | if (pr) { |
| 419 | const SkImageInfo& info = pr->info(); |
| 420 | fPixelRefOrigin.set(SkPin32(dx, 0, info.fWidth), |
| 421 | SkPin32(dy, 0, info.fHeight)); |
| 422 | } else { |
| 423 | // ignore dx,dy if there is no pixelref |
| 424 | fPixelRefOrigin.setZero(); |
| 425 | } |
| 426 | |
| 427 | if (fPixelRef != pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 428 | if (fPixelRef != pr) { |
| 429 | this->freePixels(); |
| 430 | SkASSERT(NULL == fPixelRef); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 431 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 432 | SkSafeRef(pr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | fPixelRef = pr; |
| 434 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 435 | this->updatePixelsFromRef(); |
| 436 | } |
| 437 | |
| 438 | SkDEBUGCODE(this->validate();) |
| 439 | return pr; |
| 440 | } |
| 441 | |
| 442 | void SkBitmap::lockPixels() const { |
djsollen@google.com | 7c6d264 | 2013-08-06 12:19:38 +0000 | [diff] [blame] | 443 | if (NULL != fPixelRef && 0 == sk_atomic_inc(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 444 | fPixelRef->lockPixels(); |
| 445 | this->updatePixelsFromRef(); |
| 446 | } |
| 447 | SkDEBUGCODE(this->validate();) |
| 448 | } |
| 449 | |
| 450 | void SkBitmap::unlockPixels() const { |
| 451 | SkASSERT(NULL == fPixelRef || fPixelLockCount > 0); |
| 452 | |
djsollen@google.com | 7c6d264 | 2013-08-06 12:19:38 +0000 | [diff] [blame] | 453 | if (NULL != fPixelRef && 1 == sk_atomic_dec(&fPixelLockCount)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 454 | fPixelRef->unlockPixels(); |
| 455 | this->updatePixelsFromRef(); |
| 456 | } |
| 457 | SkDEBUGCODE(this->validate();) |
| 458 | } |
| 459 | |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 460 | bool SkBitmap::lockPixelsAreWritable() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 461 | return (fPixelRef) ? fPixelRef->lockPixelsAreWritable() : false; |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 462 | } |
| 463 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 464 | void SkBitmap::setPixels(void* p, SkColorTable* ctable) { |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 465 | if (NULL == p) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 466 | this->setPixelRef(NULL); |
reed@google.com | 8e1034e | 2012-07-30 13:16:35 +0000 | [diff] [blame] | 467 | return; |
| 468 | } |
| 469 | |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 470 | SkImageInfo info; |
| 471 | if (!this->asImageInfo(&info)) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 472 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 473 | return; |
| 474 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 475 | |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 476 | SkPixelRef* pr = SkMallocPixelRef::NewDirect(info, p, fRowBytes, ctable); |
| 477 | if (NULL == pr) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 478 | this->setPixelRef(NULL); |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 479 | return; |
| 480 | } |
| 481 | |
| 482 | this->setPixelRef(pr)->unref(); |
| 483 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 484 | // since we're already allocated, we lockPixels right away |
| 485 | this->lockPixels(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 486 | SkDEBUGCODE(this->validate();) |
| 487 | } |
| 488 | |
| 489 | bool SkBitmap::allocPixels(Allocator* allocator, SkColorTable* ctable) { |
| 490 | HeapAllocator stdalloc; |
| 491 | |
| 492 | if (NULL == allocator) { |
| 493 | allocator = &stdalloc; |
| 494 | } |
| 495 | return allocator->allocPixelRef(this, ctable); |
| 496 | } |
| 497 | |
| 498 | void SkBitmap::freePixels() { |
| 499 | // if we're gonna free the pixels, we certainly need to free the mipmap |
| 500 | this->freeMipMap(); |
| 501 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 502 | if (NULL != fPixelRef) { |
| 503 | if (fPixelLockCount > 0) { |
| 504 | fPixelRef->unlockPixels(); |
| 505 | } |
| 506 | fPixelRef->unref(); |
| 507 | fPixelRef = NULL; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 508 | fPixelRefOrigin.setZero(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 509 | } |
| 510 | fPixelLockCount = 0; |
| 511 | fPixels = NULL; |
reed@google.com | 5f62ed7 | 2014-01-15 19:59:45 +0000 | [diff] [blame] | 512 | fColorTable = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 513 | } |
| 514 | |
| 515 | void SkBitmap::freeMipMap() { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 516 | if (fMipMap) { |
| 517 | fMipMap->unref(); |
| 518 | fMipMap = NULL; |
| 519 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | uint32_t SkBitmap::getGenerationID() const { |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 523 | return (fPixelRef) ? fPixelRef->getGenerationID() : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 524 | } |
| 525 | |
| 526 | void SkBitmap::notifyPixelsChanged() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 527 | SkASSERT(!this->isImmutable()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 528 | if (fPixelRef) { |
| 529 | fPixelRef->notifyPixelsChanged(); |
| 530 | } |
| 531 | } |
| 532 | |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 533 | GrTexture* SkBitmap::getTexture() const { |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 534 | return fPixelRef ? fPixelRef->getTexture() : NULL; |
| 535 | } |
| 536 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 537 | /////////////////////////////////////////////////////////////////////////////// |
| 538 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 539 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 540 | so that we can freely assign memory allocated by one class to the other. |
| 541 | */ |
| 542 | bool SkBitmap::HeapAllocator::allocPixelRef(SkBitmap* dst, |
| 543 | SkColorTable* ctable) { |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 544 | SkImageInfo info; |
| 545 | if (!dst->asImageInfo(&info)) { |
| 546 | // SkDebugf("unsupported config for info %d\n", dst->config()); |
| 547 | return false; |
| 548 | } |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 549 | |
reed@google.com | bf79023 | 2013-12-13 19:45:58 +0000 | [diff] [blame] | 550 | SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, dst->rowBytes(), |
| 551 | ctable); |
| 552 | if (NULL == pr) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 553 | return false; |
| 554 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 555 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 556 | dst->setPixelRef(pr)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 557 | // since we're already allocated, we lockPixels right away |
| 558 | dst->lockPixels(); |
| 559 | return true; |
| 560 | } |
| 561 | |
| 562 | /////////////////////////////////////////////////////////////////////////////// |
| 563 | |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 564 | size_t SkBitmap::getSafeSize() const { |
| 565 | // This is intended to be a size_t version of ComputeSafeSize64(), just |
| 566 | // faster. The computation is meant to be identical. |
| 567 | return (fHeight ? ((fHeight - 1) * fRowBytes) + |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 568 | ComputeRowBytes(this->config(), fWidth): 0); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 569 | } |
| 570 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 571 | bool SkBitmap::copyPixelsTo(void* const dst, size_t dstSize, |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 572 | size_t dstRowBytes, bool preserveDstPad) const { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 573 | |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 574 | if (0 == dstRowBytes) { |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 575 | dstRowBytes = fRowBytes; |
scroggo@google.com | 0ba4bf4 | 2013-02-25 16:02:36 +0000 | [diff] [blame] | 576 | } |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 577 | |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 578 | if (dstRowBytes < ComputeRowBytes(this->config(), fWidth) || |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 579 | dst == NULL || (getPixels() == NULL && pixelRef() == NULL)) |
| 580 | return false; |
| 581 | |
bsalomon@google.com | c698097 | 2011-11-02 19:57:21 +0000 | [diff] [blame] | 582 | if (!preserveDstPad && static_cast<uint32_t>(dstRowBytes) == fRowBytes) { |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 583 | size_t safeSize = this->getSafeSize(); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 584 | if (safeSize > dstSize || safeSize == 0) |
| 585 | return false; |
| 586 | else { |
| 587 | SkAutoLockPixels lock(*this); |
| 588 | // This implementation will write bytes beyond the end of each row, |
| 589 | // excluding the last row, if the bitmap's stride is greater than |
| 590 | // strictly required by the current config. |
| 591 | memcpy(dst, getPixels(), safeSize); |
| 592 | |
| 593 | return true; |
| 594 | } |
| 595 | } else { |
| 596 | // If destination has different stride than us, then copy line by line. |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 597 | if (ComputeSafeSize(this->config(), fWidth, fHeight, dstRowBytes) > |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 598 | dstSize) |
| 599 | return false; |
| 600 | else { |
| 601 | // Just copy what we need on each line. |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 602 | size_t rowBytes = ComputeRowBytes(this->config(), fWidth); |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 603 | SkAutoLockPixels lock(*this); |
| 604 | const uint8_t* srcP = reinterpret_cast<const uint8_t*>(getPixels()); |
| 605 | uint8_t* dstP = reinterpret_cast<uint8_t*>(dst); |
| 606 | for (uint32_t row = 0; row < fHeight; |
| 607 | row++, srcP += fRowBytes, dstP += dstRowBytes) { |
| 608 | memcpy(dstP, srcP, rowBytes); |
| 609 | } |
| 610 | |
| 611 | return true; |
| 612 | } |
| 613 | } |
| 614 | } |
| 615 | |
wjmaclean@chromium.org | 86bff1f | 2010-11-16 20:22:41 +0000 | [diff] [blame] | 616 | /////////////////////////////////////////////////////////////////////////////// |
| 617 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 618 | bool SkBitmap::isImmutable() const { |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 619 | return fPixelRef ? fPixelRef->isImmutable() : |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 620 | fFlags & kImageIsImmutable_Flag; |
junov@chromium.org | b052129 | 2011-12-15 20:14:06 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | void SkBitmap::setImmutable() { |
| 624 | if (fPixelRef) { |
| 625 | fPixelRef->setImmutable(); |
| 626 | } else { |
| 627 | fFlags |= kImageIsImmutable_Flag; |
| 628 | } |
| 629 | } |
| 630 | |
junov@google.com | 4ee7ae5 | 2011-06-30 17:30:49 +0000 | [diff] [blame] | 631 | bool SkBitmap::isVolatile() const { |
| 632 | return (fFlags & kImageIsVolatile_Flag) != 0; |
| 633 | } |
| 634 | |
| 635 | void SkBitmap::setIsVolatile(bool isVolatile) { |
| 636 | if (isVolatile) { |
| 637 | fFlags |= kImageIsVolatile_Flag; |
| 638 | } else { |
| 639 | fFlags &= ~kImageIsVolatile_Flag; |
| 640 | } |
| 641 | } |
| 642 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 643 | void* SkBitmap::getAddr(int x, int y) const { |
| 644 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 645 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 646 | |
| 647 | char* base = (char*)this->getPixels(); |
| 648 | if (base) { |
| 649 | base += y * this->rowBytes(); |
| 650 | switch (this->config()) { |
| 651 | case SkBitmap::kARGB_8888_Config: |
| 652 | base += x << 2; |
| 653 | break; |
| 654 | case SkBitmap::kARGB_4444_Config: |
| 655 | case SkBitmap::kRGB_565_Config: |
| 656 | base += x << 1; |
| 657 | break; |
| 658 | case SkBitmap::kA8_Config: |
| 659 | case SkBitmap::kIndex8_Config: |
| 660 | base += x; |
| 661 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 662 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 663 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 664 | SkDEBUGFAIL("Can't return addr for config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 665 | base = NULL; |
| 666 | break; |
| 667 | } |
| 668 | } |
| 669 | return base; |
| 670 | } |
| 671 | |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 672 | SkColor SkBitmap::getColor(int x, int y) const { |
| 673 | SkASSERT((unsigned)x < (unsigned)this->width()); |
| 674 | SkASSERT((unsigned)y < (unsigned)this->height()); |
| 675 | |
| 676 | switch (this->config()) { |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 677 | case SkBitmap::kA8_Config: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 678 | uint8_t* addr = this->getAddr8(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 679 | return SkColorSetA(0, addr[0]); |
| 680 | } |
| 681 | case SkBitmap::kIndex8_Config: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 682 | SkPMColor c = this->getIndex8Color(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 683 | return SkUnPreMultiply::PMColorToColor(c); |
| 684 | } |
| 685 | case SkBitmap::kRGB_565_Config: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 686 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 687 | return SkPixel16ToColor(addr[0]); |
| 688 | } |
| 689 | case SkBitmap::kARGB_4444_Config: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 690 | uint16_t* addr = this->getAddr16(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 691 | SkPMColor c = SkPixel4444ToPixel32(addr[0]); |
| 692 | return SkUnPreMultiply::PMColorToColor(c); |
| 693 | } |
| 694 | case SkBitmap::kARGB_8888_Config: { |
reed@google.com | 3b521d0 | 2011-04-29 11:53:41 +0000 | [diff] [blame] | 695 | uint32_t* addr = this->getAddr32(x, y); |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 696 | return SkUnPreMultiply::PMColorToColor(addr[0]); |
| 697 | } |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 698 | case kNo_Config: |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 699 | default: |
vandebo@chromium.org | 112706d | 2011-02-24 22:50:55 +0000 | [diff] [blame] | 700 | SkASSERT(false); |
| 701 | return 0; |
| 702 | } |
| 703 | SkASSERT(false); // Not reached. |
| 704 | return 0; |
| 705 | } |
| 706 | |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 707 | bool SkBitmap::ComputeIsOpaque(const SkBitmap& bm) { |
| 708 | SkAutoLockPixels alp(bm); |
| 709 | if (!bm.getPixels()) { |
| 710 | return false; |
| 711 | } |
| 712 | |
| 713 | const int height = bm.height(); |
| 714 | const int width = bm.width(); |
| 715 | |
| 716 | switch (bm.config()) { |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 717 | case SkBitmap::kA8_Config: { |
| 718 | unsigned a = 0xFF; |
| 719 | for (int y = 0; y < height; ++y) { |
| 720 | const uint8_t* row = bm.getAddr8(0, y); |
| 721 | for (int x = 0; x < width; ++x) { |
| 722 | a &= row[x]; |
| 723 | } |
| 724 | if (0xFF != a) { |
| 725 | return false; |
| 726 | } |
| 727 | } |
| 728 | return true; |
| 729 | } break; |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 730 | case SkBitmap::kIndex8_Config: { |
| 731 | SkAutoLockColors alc(bm); |
| 732 | const SkPMColor* table = alc.colors(); |
| 733 | if (!table) { |
| 734 | return false; |
| 735 | } |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 736 | SkPMColor c = (SkPMColor)~0; |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 737 | for (int i = bm.getColorTable()->count() - 1; i >= 0; --i) { |
| 738 | c &= table[i]; |
| 739 | } |
| 740 | return 0xFF == SkGetPackedA32(c); |
| 741 | } break; |
| 742 | case SkBitmap::kRGB_565_Config: |
| 743 | return true; |
| 744 | break; |
| 745 | case SkBitmap::kARGB_4444_Config: { |
| 746 | unsigned c = 0xFFFF; |
| 747 | for (int y = 0; y < height; ++y) { |
| 748 | const SkPMColor16* row = bm.getAddr16(0, y); |
| 749 | for (int x = 0; x < width; ++x) { |
| 750 | c &= row[x]; |
| 751 | } |
| 752 | if (0xF != SkGetPackedA4444(c)) { |
| 753 | return false; |
| 754 | } |
| 755 | } |
| 756 | return true; |
| 757 | } break; |
| 758 | case SkBitmap::kARGB_8888_Config: { |
reed@google.com | 140d728 | 2013-01-07 20:25:04 +0000 | [diff] [blame] | 759 | SkPMColor c = (SkPMColor)~0; |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 760 | for (int y = 0; y < height; ++y) { |
| 761 | const SkPMColor* row = bm.getAddr32(0, y); |
| 762 | for (int x = 0; x < width; ++x) { |
| 763 | c &= row[x]; |
| 764 | } |
| 765 | if (0xFF != SkGetPackedA32(c)) { |
| 766 | return false; |
| 767 | } |
| 768 | } |
| 769 | return true; |
| 770 | } |
| 771 | default: |
| 772 | break; |
| 773 | } |
| 774 | return false; |
| 775 | } |
| 776 | |
| 777 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 778 | /////////////////////////////////////////////////////////////////////////////// |
| 779 | /////////////////////////////////////////////////////////////////////////////// |
| 780 | |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 781 | static uint16_t pack_8888_to_4444(unsigned a, unsigned r, unsigned g, unsigned b) { |
| 782 | unsigned pixel = (SkA32To4444(a) << SK_A4444_SHIFT) | |
| 783 | (SkR32To4444(r) << SK_R4444_SHIFT) | |
| 784 | (SkG32To4444(g) << SK_G4444_SHIFT) | |
| 785 | (SkB32To4444(b) << SK_B4444_SHIFT); |
| 786 | return SkToU16(pixel); |
| 787 | } |
| 788 | |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 789 | void SkBitmap::internalErase(const SkIRect& area, |
| 790 | U8CPU a, U8CPU r, U8CPU g, U8CPU b) const { |
| 791 | #ifdef SK_DEBUG |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 792 | SkDEBUGCODE(this->validate();) |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 793 | SkASSERT(!area.isEmpty()); |
| 794 | { |
reed@google.com | 92833f9 | 2013-06-28 19:47:43 +0000 | [diff] [blame] | 795 | SkIRect total = { 0, 0, this->width(), this->height() }; |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 796 | SkASSERT(total.contains(area)); |
| 797 | } |
| 798 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 799 | |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 800 | if (kNo_Config == fConfig || kIndex8_Config == fConfig) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 801 | return; |
| 802 | } |
| 803 | |
| 804 | SkAutoLockPixels alp(*this); |
| 805 | // perform this check after the lock call |
| 806 | if (!this->readyToDraw()) { |
| 807 | return; |
| 808 | } |
| 809 | |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 810 | int height = area.height(); |
| 811 | const int width = area.width(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 812 | const int rowBytes = fRowBytes; |
| 813 | |
| 814 | // make rgb premultiplied |
| 815 | if (255 != a) { |
| 816 | r = SkAlphaMul(r, a); |
| 817 | g = SkAlphaMul(g, a); |
| 818 | b = SkAlphaMul(b, a); |
| 819 | } |
| 820 | |
| 821 | switch (fConfig) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 822 | case kA8_Config: { |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 823 | uint8_t* p = this->getAddr8(area.fLeft, area.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 824 | while (--height >= 0) { |
| 825 | memset(p, a, width); |
| 826 | p += rowBytes; |
| 827 | } |
| 828 | break; |
| 829 | } |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 830 | case kARGB_4444_Config: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 831 | case kRGB_565_Config: { |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 832 | uint16_t* p = this->getAddr16(area.fLeft, area.fTop);; |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 833 | uint16_t v; |
skia.committer@gmail.com | 020b25b | 2013-06-22 07:00:58 +0000 | [diff] [blame] | 834 | |
reed@google.com | 45f746f | 2013-06-21 19:51:31 +0000 | [diff] [blame] | 835 | if (kARGB_4444_Config == fConfig) { |
| 836 | v = pack_8888_to_4444(a, r, g, b); |
| 837 | } else { |
| 838 | v = SkPackRGB16(r >> (8 - SK_R16_BITS), |
| 839 | g >> (8 - SK_G16_BITS), |
| 840 | b >> (8 - SK_B16_BITS)); |
| 841 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 842 | while (--height >= 0) { |
| 843 | sk_memset16(p, v, width); |
| 844 | p = (uint16_t*)((char*)p + rowBytes); |
| 845 | } |
| 846 | break; |
| 847 | } |
| 848 | case kARGB_8888_Config: { |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 849 | uint32_t* p = this->getAddr32(area.fLeft, area.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 850 | uint32_t v = SkPackARGB32(a, r, g, b); |
| 851 | |
| 852 | while (--height >= 0) { |
| 853 | sk_memset32(p, v, width); |
| 854 | p = (uint32_t*)((char*)p + rowBytes); |
| 855 | } |
| 856 | break; |
| 857 | } |
| 858 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 859 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 860 | this->notifyPixelsChanged(); |
| 861 | } |
| 862 | |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 863 | 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] | 864 | SkIRect area = { 0, 0, this->width(), this->height() }; |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 865 | if (!area.isEmpty()) { |
| 866 | this->internalErase(area, a, r, g, b); |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | void SkBitmap::eraseArea(const SkIRect& rect, SkColor c) const { |
reed@google.com | 92833f9 | 2013-06-28 19:47:43 +0000 | [diff] [blame] | 871 | SkIRect area = { 0, 0, this->width(), this->height() }; |
reed@google.com | 60d3235 | 2013-06-28 19:40:50 +0000 | [diff] [blame] | 872 | if (area.intersect(rect)) { |
| 873 | this->internalErase(area, SkColorGetA(c), SkColorGetR(c), |
| 874 | SkColorGetG(c), SkColorGetB(c)); |
| 875 | } |
| 876 | } |
| 877 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 878 | ////////////////////////////////////////////////////////////////////////////////////// |
| 879 | ////////////////////////////////////////////////////////////////////////////////////// |
| 880 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 881 | bool SkBitmap::extractSubset(SkBitmap* result, const SkIRect& subset) const { |
| 882 | SkDEBUGCODE(this->validate();) |
| 883 | |
djsollen@google.com | c84b833 | 2012-07-27 13:41:44 +0000 | [diff] [blame] | 884 | if (NULL == result || NULL == fPixelRef) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 885 | return false; // no src pixels |
| 886 | } |
| 887 | |
| 888 | SkIRect srcRect, r; |
| 889 | srcRect.set(0, 0, this->width(), this->height()); |
| 890 | if (!r.intersect(srcRect, subset)) { |
| 891 | return false; // r is empty (i.e. no intersection) |
| 892 | } |
| 893 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 894 | if (fPixelRef->getTexture() != NULL) { |
| 895 | // Do a deep copy |
| 896 | SkPixelRef* pixelRef = fPixelRef->deepCopy(this->config(), &subset); |
| 897 | if (pixelRef != NULL) { |
| 898 | SkBitmap dst; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 899 | dst.setConfig(this->config(), subset.width(), subset.height(), 0, |
| 900 | this->alphaType()); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 901 | dst.setIsVolatile(this->isVolatile()); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 902 | dst.setPixelRef(pixelRef)->unref(); |
| 903 | SkDEBUGCODE(dst.validate()); |
| 904 | result->swap(dst); |
| 905 | return true; |
| 906 | } |
| 907 | } |
| 908 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 909 | // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have |
| 910 | // exited above. |
| 911 | SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width())); |
| 912 | SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height())); |
| 913 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 914 | SkBitmap dst; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 915 | dst.setConfig(this->config(), r.width(), r.height(), this->rowBytes(), |
| 916 | this->alphaType()); |
skyostil@google.com | 0eb7576 | 2012-01-16 10:45:53 +0000 | [diff] [blame] | 917 | dst.setIsVolatile(this->isVolatile()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 918 | |
| 919 | if (fPixelRef) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 920 | SkIPoint origin = fPixelRefOrigin; |
| 921 | origin.fX += r.fLeft; |
| 922 | origin.fY += r.fTop; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 923 | // share the pixelref with a custom offset |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 924 | dst.setPixelRef(fPixelRef, origin); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 925 | } |
| 926 | SkDEBUGCODE(dst.validate();) |
| 927 | |
| 928 | // we know we're good, so commit to result |
| 929 | result->swap(dst); |
| 930 | return true; |
| 931 | } |
| 932 | |
| 933 | /////////////////////////////////////////////////////////////////////////////// |
| 934 | |
| 935 | #include "SkCanvas.h" |
| 936 | #include "SkPaint.h" |
| 937 | |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 938 | bool SkBitmap::canCopyTo(Config dstConfig) const { |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 939 | if (this->config() == kNo_Config) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 940 | return false; |
| 941 | } |
| 942 | |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 943 | bool sameConfigs = (this->config() == dstConfig); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 944 | switch (dstConfig) { |
| 945 | case kA8_Config: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 946 | case kRGB_565_Config: |
| 947 | case kARGB_8888_Config: |
| 948 | break; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 949 | case kIndex8_Config: |
| 950 | if (!sameConfigs) { |
| 951 | return false; |
| 952 | } |
| 953 | break; |
scroggo@google.com | 8dc8bc5 | 2013-08-07 19:16:05 +0000 | [diff] [blame] | 954 | case kARGB_4444_Config: |
| 955 | return sameConfigs || kARGB_8888_Config == this->config(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 956 | default: |
| 957 | return false; |
| 958 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 959 | return true; |
| 960 | } |
| 961 | |
| 962 | bool SkBitmap::copyTo(SkBitmap* dst, Config dstConfig, Allocator* alloc) const { |
| 963 | if (!this->canCopyTo(dstConfig)) { |
| 964 | return false; |
| 965 | } |
| 966 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 967 | // if we have a texture, first get those pixels |
| 968 | SkBitmap tmpSrc; |
| 969 | const SkBitmap* src = this; |
| 970 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 971 | if (fPixelRef) { |
| 972 | SkIRect subset; |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 973 | subset.setXYWH(fPixelRefOrigin.fX, fPixelRefOrigin.fY, fWidth, fHeight); |
| 974 | if (fPixelRef->readPixels(&tmpSrc, &subset)) { |
| 975 | SkASSERT(tmpSrc.width() == this->width()); |
| 976 | SkASSERT(tmpSrc.height() == this->height()); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 977 | |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 978 | // did we get lucky and we can just return tmpSrc? |
| 979 | if (tmpSrc.config() == dstConfig && NULL == alloc) { |
| 980 | dst->swap(tmpSrc); |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 981 | // If the result is an exact copy, clone the gen ID. |
| 982 | if (dst->pixelRef() && dst->pixelRef()->info() == fPixelRef->info()) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 983 | dst->pixelRef()->cloneGenID(*fPixelRef); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 984 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 985 | return true; |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 986 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 987 | |
| 988 | // fall through to the raster case |
| 989 | src = &tmpSrc; |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 990 | } |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 991 | } |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 992 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 993 | // we lock this now, since we may need its colortable |
| 994 | SkAutoLockPixels srclock(*src); |
| 995 | if (!src->readyToDraw()) { |
| 996 | return false; |
| 997 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 998 | |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 999 | // The only way to be readyToDraw is if fPixelRef is non NULL. |
| 1000 | SkASSERT(fPixelRef != NULL); |
| 1001 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1002 | SkBitmap tmpDst; |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 1003 | tmpDst.setConfig(dstConfig, src->width(), src->height(), 0, |
| 1004 | src->alphaType()); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1005 | |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1006 | // allocate colortable if srcConfig == kIndex8_Config |
| 1007 | SkColorTable* ctable = (dstConfig == kIndex8_Config) ? |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1008 | new SkColorTable(*src->getColorTable()) : NULL; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1009 | SkAutoUnref au(ctable); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1010 | if (!tmpDst.allocPixels(alloc, ctable)) { |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1011 | return false; |
| 1012 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1013 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1014 | if (!tmpDst.readyToDraw()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1015 | // allocator/lock failed |
| 1016 | return false; |
| 1017 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1018 | |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 1019 | // pixelRef must be non NULL or tmpDst.readyToDraw() would have |
| 1020 | // returned false. |
| 1021 | SkASSERT(tmpDst.pixelRef() != NULL); |
| 1022 | |
reed@android.com | fbaa88d | 2009-05-06 17:44:34 +0000 | [diff] [blame] | 1023 | /* do memcpy for the same configs cases, else use drawing |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1024 | */ |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1025 | if (src->config() == dstConfig) { |
| 1026 | if (tmpDst.getSize() == src->getSize()) { |
| 1027 | memcpy(tmpDst.getPixels(), src->getPixels(), src->getSafeSize()); |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 1028 | SkPixelRef* pixelRef = tmpDst.pixelRef(); |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 1029 | |
| 1030 | // In order to reach this point, we know that the width, config and |
| 1031 | // rowbytes of the SkPixelRefs are the same, but it is possible for |
| 1032 | // the heights to differ, if this SkBitmap's height is a subset of |
| 1033 | // fPixelRef. Only if the SkPixelRefs' heights match are we |
| 1034 | // guaranteed that this is an exact copy, meaning we should clone |
| 1035 | // the genID. |
| 1036 | if (pixelRef->info().fHeight == fPixelRef->info().fHeight) { |
| 1037 | // TODO: what to do if the two infos match, BUT |
| 1038 | // fPixelRef is premul and pixelRef is opaque? |
| 1039 | // skipping assert for now |
| 1040 | // https://code.google.com/p/skia/issues/detail?id=2012 |
| 1041 | // SkASSERT(pixelRef->info() == fPixelRef->info()); |
| 1042 | SkASSERT(pixelRef->info().fWidth == fPixelRef->info().fWidth); |
| 1043 | SkASSERT(pixelRef->info().fColorType == fPixelRef->info().fColorType); |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 1044 | pixelRef->cloneGenID(*fPixelRef); |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 1045 | } |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 1046 | } else { |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1047 | const char* srcP = reinterpret_cast<const char*>(src->getPixels()); |
| 1048 | char* dstP = reinterpret_cast<char*>(tmpDst.getPixels()); |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 1049 | // to be sure we don't read too much, only copy our logical pixels |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1050 | size_t bytesToCopy = tmpDst.width() * tmpDst.bytesPerPixel(); |
| 1051 | for (int y = 0; y < tmpDst.height(); y++) { |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 1052 | memcpy(dstP, srcP, bytesToCopy); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1053 | srcP += src->rowBytes(); |
| 1054 | dstP += tmpDst.rowBytes(); |
reed@android.com | 311c82d | 2009-05-05 23:13:23 +0000 | [diff] [blame] | 1055 | } |
| 1056 | } |
scroggo@google.com | 8dc8bc5 | 2013-08-07 19:16:05 +0000 | [diff] [blame] | 1057 | } else if (SkBitmap::kARGB_4444_Config == dstConfig |
| 1058 | && SkBitmap::kARGB_8888_Config == src->config()) { |
| 1059 | SkASSERT(src->height() == tmpDst.height()); |
| 1060 | SkASSERT(src->width() == tmpDst.width()); |
| 1061 | for (int y = 0; y < src->height(); ++y) { |
| 1062 | SkPMColor16* SK_RESTRICT dstRow = (SkPMColor16*) tmpDst.getAddr16(0, y); |
| 1063 | SkPMColor* SK_RESTRICT srcRow = (SkPMColor*) src->getAddr32(0, y); |
| 1064 | DITHER_4444_SCAN(y); |
| 1065 | for (int x = 0; x < src->width(); ++x) { |
| 1066 | dstRow[x] = SkDitherARGB32To4444(srcRow[x], |
| 1067 | DITHER_VALUE(x)); |
| 1068 | } |
| 1069 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1070 | } else { |
robertphillips@google.com | 0197b32 | 2013-10-10 15:48:16 +0000 | [diff] [blame] | 1071 | // Always clear the dest in case one of the blitters accesses it |
| 1072 | // TODO: switch the allocation of tmpDst to call sk_calloc_throw |
| 1073 | tmpDst.eraseColor(SK_ColorTRANSPARENT); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1074 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1075 | SkCanvas canvas(tmpDst); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1076 | SkPaint paint; |
| 1077 | |
| 1078 | paint.setDither(true); |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1079 | canvas.drawBitmap(*src, 0, 0, &paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1080 | } |
| 1081 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 1082 | dst->swap(tmpDst); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1083 | return true; |
| 1084 | } |
| 1085 | |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 1086 | bool SkBitmap::deepCopyTo(SkBitmap* dst, Config dstConfig) const { |
| 1087 | if (!this->canCopyTo(dstConfig)) { |
| 1088 | return false; |
| 1089 | } |
| 1090 | |
| 1091 | // If we have a PixelRef, and it supports deep copy, use it. |
| 1092 | // Currently supported only by texture-backed bitmaps. |
| 1093 | if (fPixelRef) { |
| 1094 | SkPixelRef* pixelRef = fPixelRef->deepCopy(dstConfig); |
| 1095 | if (pixelRef) { |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 1096 | uint32_t rowBytes; |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 1097 | if (dstConfig == fConfig) { |
scroggo@google.com | 5ccae2c | 2014-01-15 16:56:52 +0000 | [diff] [blame] | 1098 | // Since there is no subset to pass to deepCopy, and deepCopy |
| 1099 | // succeeded, the new pixel ref must be identical. |
| 1100 | SkASSERT(fPixelRef->info() == pixelRef->info()); |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 1101 | pixelRef->cloneGenID(*fPixelRef); |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 1102 | // Use the same rowBytes as the original. |
| 1103 | rowBytes = fRowBytes; |
| 1104 | } else { |
| 1105 | // With the new config, an appropriate fRowBytes will be computed by setConfig. |
| 1106 | rowBytes = 0; |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 1107 | } |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 1108 | dst->setConfig(dstConfig, fWidth, fHeight, rowBytes); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 1109 | dst->setPixelRef(pixelRef, fPixelRefOrigin)->unref(); |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 1110 | return true; |
| 1111 | } |
| 1112 | } |
| 1113 | |
| 1114 | if (this->getTexture()) { |
| 1115 | return false; |
| 1116 | } else { |
| 1117 | return this->copyTo(dst, dstConfig, NULL); |
| 1118 | } |
| 1119 | } |
| 1120 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1121 | /////////////////////////////////////////////////////////////////////////////// |
| 1122 | /////////////////////////////////////////////////////////////////////////////// |
| 1123 | |
| 1124 | static void downsampleby2_proc32(SkBitmap* dst, int x, int y, |
| 1125 | const SkBitmap& src) { |
| 1126 | x <<= 1; |
| 1127 | y <<= 1; |
| 1128 | const SkPMColor* p = src.getAddr32(x, y); |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1129 | const SkPMColor* baseP = p; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1130 | SkPMColor c, ag, rb; |
| 1131 | |
| 1132 | c = *p; ag = (c >> 8) & 0xFF00FF; rb = c & 0xFF00FF; |
| 1133 | if (x < src.width() - 1) { |
| 1134 | p += 1; |
| 1135 | } |
| 1136 | c = *p; ag += (c >> 8) & 0xFF00FF; rb += c & 0xFF00FF; |
| 1137 | |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1138 | p = baseP; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1139 | if (y < src.height() - 1) { |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1140 | p += src.rowBytes() >> 2; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1141 | } |
| 1142 | c = *p; ag += (c >> 8) & 0xFF00FF; rb += c & 0xFF00FF; |
| 1143 | if (x < src.width() - 1) { |
| 1144 | p += 1; |
| 1145 | } |
| 1146 | c = *p; ag += (c >> 8) & 0xFF00FF; rb += c & 0xFF00FF; |
| 1147 | |
| 1148 | *dst->getAddr32(x >> 1, y >> 1) = |
| 1149 | ((rb >> 2) & 0xFF00FF) | ((ag << 6) & 0xFF00FF00); |
| 1150 | } |
| 1151 | |
| 1152 | static inline uint32_t expand16(U16CPU c) { |
| 1153 | return (c & ~SK_G16_MASK_IN_PLACE) | ((c & SK_G16_MASK_IN_PLACE) << 16); |
| 1154 | } |
| 1155 | |
| 1156 | // returns dirt in the top 16bits, but we don't care, since we only |
| 1157 | // store the low 16bits. |
| 1158 | static inline U16CPU pack16(uint32_t c) { |
| 1159 | return (c & ~SK_G16_MASK_IN_PLACE) | ((c >> 16) & SK_G16_MASK_IN_PLACE); |
| 1160 | } |
| 1161 | |
| 1162 | static void downsampleby2_proc16(SkBitmap* dst, int x, int y, |
| 1163 | const SkBitmap& src) { |
| 1164 | x <<= 1; |
| 1165 | y <<= 1; |
| 1166 | const uint16_t* p = src.getAddr16(x, y); |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1167 | const uint16_t* baseP = p; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1168 | SkPMColor c; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1169 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1170 | c = expand16(*p); |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1171 | if (x < src.width() - 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1172 | p += 1; |
| 1173 | } |
| 1174 | c += expand16(*p); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1175 | |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1176 | p = baseP; |
| 1177 | if (y < src.height() - 1) { |
| 1178 | p += src.rowBytes() >> 1; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1179 | } |
| 1180 | c += expand16(*p); |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1181 | if (x < src.width() - 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1182 | p += 1; |
| 1183 | } |
| 1184 | c += expand16(*p); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1185 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1186 | *dst->getAddr16(x >> 1, y >> 1) = (uint16_t)pack16(c >> 2); |
| 1187 | } |
| 1188 | |
| 1189 | static uint32_t expand4444(U16CPU c) { |
| 1190 | return (c & 0xF0F) | ((c & ~0xF0F) << 12); |
| 1191 | } |
| 1192 | |
| 1193 | static U16CPU collaps4444(uint32_t c) { |
| 1194 | return (c & 0xF0F) | ((c >> 12) & ~0xF0F); |
| 1195 | } |
| 1196 | |
| 1197 | static void downsampleby2_proc4444(SkBitmap* dst, int x, int y, |
| 1198 | const SkBitmap& src) { |
| 1199 | x <<= 1; |
| 1200 | y <<= 1; |
| 1201 | const uint16_t* p = src.getAddr16(x, y); |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1202 | const uint16_t* baseP = p; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1203 | uint32_t c; |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1204 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1205 | c = expand4444(*p); |
| 1206 | if (x < src.width() - 1) { |
| 1207 | p += 1; |
| 1208 | } |
| 1209 | c += expand4444(*p); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1210 | |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1211 | p = baseP; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1212 | if (y < src.height() - 1) { |
reed@android.com | 829c83c | 2009-06-08 12:05:31 +0000 | [diff] [blame] | 1213 | p += src.rowBytes() >> 1; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1214 | } |
| 1215 | c += expand4444(*p); |
| 1216 | if (x < src.width() - 1) { |
| 1217 | p += 1; |
| 1218 | } |
| 1219 | c += expand4444(*p); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1220 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1221 | *dst->getAddr16(x >> 1, y >> 1) = (uint16_t)collaps4444(c >> 2); |
| 1222 | } |
| 1223 | |
| 1224 | void SkBitmap::buildMipMap(bool forceRebuild) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1225 | if (forceRebuild) |
| 1226 | this->freeMipMap(); |
| 1227 | else if (fMipMap) |
| 1228 | return; // we're already built |
| 1229 | |
| 1230 | SkASSERT(NULL == fMipMap); |
| 1231 | |
| 1232 | void (*proc)(SkBitmap* dst, int x, int y, const SkBitmap& src); |
| 1233 | |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 1234 | const SkBitmap::Config config = this->config(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1235 | |
| 1236 | switch (config) { |
| 1237 | case kARGB_8888_Config: |
| 1238 | proc = downsampleby2_proc32; |
| 1239 | break; |
| 1240 | case kRGB_565_Config: |
| 1241 | proc = downsampleby2_proc16; |
| 1242 | break; |
| 1243 | case kARGB_4444_Config: |
| 1244 | proc = downsampleby2_proc4444; |
| 1245 | break; |
| 1246 | case kIndex8_Config: |
| 1247 | case kA8_Config: |
| 1248 | default: |
| 1249 | return; // don't build mipmaps for these configs |
| 1250 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 1251 | |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1252 | SkAutoLockPixels alp(*this); |
| 1253 | if (!this->readyToDraw()) { |
| 1254 | return; |
| 1255 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1256 | |
| 1257 | // whip through our loop to compute the exact size needed |
| 1258 | size_t size = 0; |
| 1259 | int maxLevels = 0; |
| 1260 | { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1261 | int width = this->width(); |
| 1262 | int height = this->height(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1263 | for (;;) { |
| 1264 | width >>= 1; |
| 1265 | height >>= 1; |
| 1266 | if (0 == width || 0 == height) { |
| 1267 | break; |
| 1268 | } |
| 1269 | size += ComputeRowBytes(config, width) * height; |
| 1270 | maxLevels += 1; |
| 1271 | } |
| 1272 | } |
reed@android.com | 89bb83a | 2009-05-29 21:30:42 +0000 | [diff] [blame] | 1273 | |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1274 | // nothing to build |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1275 | if (0 == maxLevels) { |
| 1276 | return; |
| 1277 | } |
| 1278 | |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1279 | SkBitmap srcBM(*this); |
| 1280 | srcBM.lockPixels(); |
| 1281 | if (!srcBM.readyToDraw()) { |
| 1282 | return; |
| 1283 | } |
| 1284 | |
| 1285 | MipMap* mm = MipMap::Alloc(maxLevels, size); |
| 1286 | if (NULL == mm) { |
| 1287 | return; |
| 1288 | } |
| 1289 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1290 | MipLevel* level = mm->levels(); |
| 1291 | uint8_t* addr = (uint8_t*)mm->pixels(); |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1292 | int width = this->width(); |
| 1293 | int height = this->height(); |
scroggo@google.com | e5f4824 | 2013-02-25 21:47:41 +0000 | [diff] [blame] | 1294 | uint32_t rowBytes; |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1295 | SkBitmap dstBM; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1296 | |
| 1297 | for (int i = 0; i < maxLevels; i++) { |
| 1298 | width >>= 1; |
| 1299 | height >>= 1; |
scroggo@google.com | e5f4824 | 2013-02-25 21:47:41 +0000 | [diff] [blame] | 1300 | rowBytes = SkToU32(ComputeRowBytes(config, width)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1301 | |
| 1302 | level[i].fPixels = addr; |
reed@android.com | f459a49 | 2009-03-27 12:33:50 +0000 | [diff] [blame] | 1303 | level[i].fWidth = width; |
| 1304 | level[i].fHeight = height; |
reed@android.com | 49f0ff2 | 2009-03-19 21:52:42 +0000 | [diff] [blame] | 1305 | level[i].fRowBytes = rowBytes; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1306 | |
| 1307 | dstBM.setConfig(config, width, height, rowBytes); |
| 1308 | dstBM.setPixels(addr); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1309 | |
bungeman@google.com | 7cf0e9e | 2012-07-25 16:09:10 +0000 | [diff] [blame] | 1310 | srcBM.lockPixels(); |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 1311 | for (int y = 0; y < height; y++) { |
| 1312 | for (int x = 0; x < width; x++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1313 | proc(&dstBM, x, y, srcBM); |
| 1314 | } |
| 1315 | } |
bungeman@google.com | 7cf0e9e | 2012-07-25 16:09:10 +0000 | [diff] [blame] | 1316 | srcBM.unlockPixels(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1317 | |
| 1318 | srcBM = dstBM; |
| 1319 | addr += height * rowBytes; |
| 1320 | } |
| 1321 | SkASSERT(addr == (uint8_t*)mm->pixels() + size); |
| 1322 | fMipMap = mm; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | bool SkBitmap::hasMipMap() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1326 | return fMipMap != NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1327 | } |
| 1328 | |
| 1329 | int SkBitmap::extractMipLevel(SkBitmap* dst, SkFixed sx, SkFixed sy) { |
reed@android.com | 83f7bc3 | 2009-07-17 02:42:41 +0000 | [diff] [blame] | 1330 | if (NULL == fMipMap) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1331 | return 0; |
reed@android.com | 83f7bc3 | 2009-07-17 02:42:41 +0000 | [diff] [blame] | 1332 | } |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1333 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1334 | int level = ComputeMipLevel(sx, sy) >> 16; |
| 1335 | SkASSERT(level >= 0); |
| 1336 | if (level <= 0) { |
| 1337 | return 0; |
| 1338 | } |
| 1339 | |
| 1340 | if (level >= fMipMap->fLevelCount) { |
| 1341 | level = fMipMap->fLevelCount - 1; |
| 1342 | } |
| 1343 | if (dst) { |
| 1344 | const MipLevel& mip = fMipMap->levels()[level - 1]; |
| 1345 | dst->setConfig((SkBitmap::Config)this->config(), |
| 1346 | mip.fWidth, mip.fHeight, mip.fRowBytes); |
| 1347 | dst->setPixels(mip.fPixels); |
| 1348 | } |
| 1349 | return level; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1350 | } |
| 1351 | |
| 1352 | SkFixed SkBitmap::ComputeMipLevel(SkFixed sx, SkFixed sy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1353 | sx = SkAbs32(sx); |
| 1354 | sy = SkAbs32(sy); |
| 1355 | if (sx < sy) { |
| 1356 | sx = sy; |
| 1357 | } |
| 1358 | if (sx < SK_Fixed1) { |
| 1359 | return 0; |
| 1360 | } |
| 1361 | int clz = SkCLZ(sx); |
| 1362 | SkASSERT(clz >= 1 && clz <= 15); |
| 1363 | return SkIntToFixed(15 - clz) + ((unsigned)(sx << (clz + 1)) >> 16); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1364 | } |
| 1365 | |
| 1366 | /////////////////////////////////////////////////////////////////////////////// |
| 1367 | |
tomhudson@google.com | a87cd2a | 2011-06-15 16:50:27 +0000 | [diff] [blame] | 1368 | static bool GetBitmapAlpha(const SkBitmap& src, uint8_t* SK_RESTRICT alpha, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1369 | int alphaRowBytes) { |
| 1370 | SkASSERT(alpha != NULL); |
| 1371 | SkASSERT(alphaRowBytes >= src.width()); |
| 1372 | |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 1373 | SkBitmap::Config config = src.config(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1374 | int w = src.width(); |
| 1375 | int h = src.height(); |
scroggo@google.com | e5f4824 | 2013-02-25 21:47:41 +0000 | [diff] [blame] | 1376 | size_t rb = src.rowBytes(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1377 | |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 1378 | SkAutoLockPixels alp(src); |
| 1379 | if (!src.readyToDraw()) { |
| 1380 | // zero out the alpha buffer and return |
| 1381 | while (--h >= 0) { |
| 1382 | memset(alpha, 0, w); |
| 1383 | alpha += alphaRowBytes; |
| 1384 | } |
| 1385 | return false; |
| 1386 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 1387 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1388 | if (SkBitmap::kA8_Config == config && !src.isOpaque()) { |
| 1389 | const uint8_t* s = src.getAddr8(0, 0); |
| 1390 | while (--h >= 0) { |
| 1391 | memcpy(alpha, s, w); |
| 1392 | s += rb; |
| 1393 | alpha += alphaRowBytes; |
| 1394 | } |
| 1395 | } else if (SkBitmap::kARGB_8888_Config == config && !src.isOpaque()) { |
| 1396 | const SkPMColor* SK_RESTRICT s = src.getAddr32(0, 0); |
| 1397 | while (--h >= 0) { |
| 1398 | for (int x = 0; x < w; x++) { |
| 1399 | alpha[x] = SkGetPackedA32(s[x]); |
| 1400 | } |
| 1401 | s = (const SkPMColor*)((const char*)s + rb); |
| 1402 | alpha += alphaRowBytes; |
| 1403 | } |
| 1404 | } else if (SkBitmap::kARGB_4444_Config == config && !src.isOpaque()) { |
| 1405 | const SkPMColor16* SK_RESTRICT s = src.getAddr16(0, 0); |
| 1406 | while (--h >= 0) { |
| 1407 | for (int x = 0; x < w; x++) { |
| 1408 | alpha[x] = SkPacked4444ToA32(s[x]); |
| 1409 | } |
| 1410 | s = (const SkPMColor16*)((const char*)s + rb); |
| 1411 | alpha += alphaRowBytes; |
| 1412 | } |
| 1413 | } else if (SkBitmap::kIndex8_Config == config && !src.isOpaque()) { |
| 1414 | SkColorTable* ct = src.getColorTable(); |
| 1415 | if (ct) { |
| 1416 | const SkPMColor* SK_RESTRICT table = ct->lockColors(); |
| 1417 | const uint8_t* SK_RESTRICT s = src.getAddr8(0, 0); |
| 1418 | while (--h >= 0) { |
| 1419 | for (int x = 0; x < w; x++) { |
| 1420 | alpha[x] = SkGetPackedA32(table[s[x]]); |
| 1421 | } |
| 1422 | s += rb; |
| 1423 | alpha += alphaRowBytes; |
| 1424 | } |
reed@google.com | 0a6151d | 2013-10-10 14:44:56 +0000 | [diff] [blame] | 1425 | ct->unlockColors(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1426 | } |
| 1427 | } else { // src is opaque, so just fill alpha[] with 0xFF |
| 1428 | memset(alpha, 0xFF, h * alphaRowBytes); |
| 1429 | } |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 1430 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1431 | } |
| 1432 | |
| 1433 | #include "SkPaint.h" |
| 1434 | #include "SkMaskFilter.h" |
| 1435 | #include "SkMatrix.h" |
| 1436 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1437 | bool SkBitmap::extractAlpha(SkBitmap* dst, const SkPaint* paint, |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 1438 | Allocator *allocator, SkIPoint* offset) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1439 | SkDEBUGCODE(this->validate();) |
| 1440 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1441 | SkBitmap tmpBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1442 | SkMatrix identity; |
| 1443 | SkMask srcM, dstM; |
| 1444 | |
| 1445 | srcM.fBounds.set(0, 0, this->width(), this->height()); |
| 1446 | srcM.fRowBytes = SkAlign4(this->width()); |
| 1447 | srcM.fFormat = SkMask::kA8_Format; |
| 1448 | |
| 1449 | SkMaskFilter* filter = paint ? paint->getMaskFilter() : NULL; |
| 1450 | |
| 1451 | // compute our (larger?) dst bounds if we have a filter |
| 1452 | if (NULL != filter) { |
| 1453 | identity.reset(); |
| 1454 | srcM.fImage = NULL; |
| 1455 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1456 | goto NO_FILTER_CASE; |
| 1457 | } |
| 1458 | dstM.fRowBytes = SkAlign4(dstM.fBounds.width()); |
| 1459 | } else { |
| 1460 | NO_FILTER_CASE: |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1461 | tmpBitmap.setConfig(SkBitmap::kA8_Config, this->width(), this->height(), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1462 | srcM.fRowBytes); |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1463 | if (!tmpBitmap.allocPixels(allocator, NULL)) { |
| 1464 | // Allocation of pixels for alpha bitmap failed. |
| 1465 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1466 | tmpBitmap.width(), tmpBitmap.height()); |
| 1467 | return false; |
| 1468 | } |
| 1469 | GetBitmapAlpha(*this, tmpBitmap.getAddr8(0, 0), srcM.fRowBytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1470 | if (offset) { |
| 1471 | offset->set(0, 0); |
| 1472 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1473 | tmpBitmap.swap(*dst); |
| 1474 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1475 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1476 | srcM.fImage = SkMask::AllocImage(srcM.computeImageSize()); |
| 1477 | SkAutoMaskFreeImage srcCleanup(srcM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1478 | |
| 1479 | GetBitmapAlpha(*this, srcM.fImage, srcM.fRowBytes); |
| 1480 | if (!filter->filterMask(&dstM, srcM, identity, NULL)) { |
| 1481 | goto NO_FILTER_CASE; |
| 1482 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 1483 | SkAutoMaskFreeImage dstCleanup(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1484 | |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1485 | tmpBitmap.setConfig(SkBitmap::kA8_Config, dstM.fBounds.width(), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1486 | dstM.fBounds.height(), dstM.fRowBytes); |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1487 | if (!tmpBitmap.allocPixels(allocator, NULL)) { |
| 1488 | // Allocation of pixels for alpha bitmap failed. |
| 1489 | SkDebugf("extractAlpha failed to allocate (%d,%d) alpha bitmap\n", |
| 1490 | tmpBitmap.width(), tmpBitmap.height()); |
| 1491 | return false; |
| 1492 | } |
| 1493 | memcpy(tmpBitmap.getPixels(), dstM.fImage, dstM.computeImageSize()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1494 | if (offset) { |
| 1495 | offset->set(dstM.fBounds.fLeft, dstM.fBounds.fTop); |
| 1496 | } |
djsollen@google.com | cd9d69b | 2011-03-14 20:30:14 +0000 | [diff] [blame] | 1497 | SkDEBUGCODE(tmpBitmap.validate();) |
| 1498 | |
| 1499 | tmpBitmap.swap(*dst); |
| 1500 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1501 | } |
| 1502 | |
| 1503 | /////////////////////////////////////////////////////////////////////////////// |
| 1504 | |
| 1505 | enum { |
| 1506 | SERIALIZE_PIXELTYPE_NONE, |
djsollen@google.com | 21830d9 | 2012-08-07 19:49:41 +0000 | [diff] [blame] | 1507 | SERIALIZE_PIXELTYPE_REF_DATA |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1508 | }; |
| 1509 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1510 | void SkBitmap::flatten(SkFlattenableWriteBuffer& buffer) const { |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 1511 | buffer.writeInt(fWidth); |
| 1512 | buffer.writeInt(fHeight); |
| 1513 | buffer.writeInt(fRowBytes); |
| 1514 | buffer.writeInt(fConfig); |
reed@google.com | 383a697 | 2013-10-21 14:00:07 +0000 | [diff] [blame] | 1515 | buffer.writeInt(fAlphaType); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1516 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1517 | if (fPixelRef) { |
djsollen@google.com | 5370cd9 | 2012-03-28 20:47:01 +0000 | [diff] [blame] | 1518 | if (fPixelRef->getFactory()) { |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 1519 | buffer.writeInt(SERIALIZE_PIXELTYPE_REF_DATA); |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 1520 | buffer.writeInt(fPixelRefOrigin.fX); |
| 1521 | buffer.writeInt(fPixelRefOrigin.fY); |
djsollen@google.com | 5370cd9 | 2012-03-28 20:47:01 +0000 | [diff] [blame] | 1522 | buffer.writeFlattenable(fPixelRef); |
| 1523 | return; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1524 | } |
| 1525 | // if we get here, we can't record the pixels |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 1526 | buffer.writeInt(SERIALIZE_PIXELTYPE_NONE); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1527 | } else { |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 1528 | buffer.writeInt(SERIALIZE_PIXELTYPE_NONE); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1529 | } |
| 1530 | } |
| 1531 | |
| 1532 | void SkBitmap::unflatten(SkFlattenableReadBuffer& buffer) { |
| 1533 | this->reset(); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1534 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1535 | int width = buffer.readInt(); |
| 1536 | int height = buffer.readInt(); |
| 1537 | int rowBytes = buffer.readInt(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 1538 | Config config = (Config)buffer.readInt(); |
| 1539 | SkAlphaType alphaType = (SkAlphaType)buffer.readInt(); |
| 1540 | buffer.validate((width >= 0) && (height >= 0) && (rowBytes >= 0) && |
| 1541 | SkIsValidConfig(config) && validate_alphaType(config, alphaType)); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1542 | |
commit-bot@chromium.org | c2e9db3 | 2013-12-06 20:14:46 +0000 | [diff] [blame] | 1543 | bool configIsValid = this->setConfig(config, width, height, rowBytes, alphaType); |
| 1544 | // Note : Using (fRowBytes >= (fWidth * fBytesPerPixel)) in the following test can create false |
| 1545 | // positives if the multiplication causes an integer overflow. Use the division instead. |
| 1546 | buffer.validate(configIsValid && (fBytesPerPixel > 0) && |
| 1547 | ((fRowBytes / fBytesPerPixel) >= fWidth)); |
weita@google.com | f9ab99a | 2009-05-03 18:23:30 +0000 | [diff] [blame] | 1548 | |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 1549 | int reftype = buffer.readInt(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1550 | if (buffer.validate((SERIALIZE_PIXELTYPE_REF_DATA == reftype) || |
| 1551 | (SERIALIZE_PIXELTYPE_NONE == reftype))) { |
| 1552 | switch (reftype) { |
| 1553 | case SERIALIZE_PIXELTYPE_REF_DATA: { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 1554 | SkIPoint origin; |
| 1555 | origin.fX = buffer.readInt(); |
| 1556 | origin.fY = buffer.readInt(); |
| 1557 | size_t offset = origin.fY * rowBytes + origin.fX * fBytesPerPixel; |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1558 | SkPixelRef* pr = buffer.readPixelRef(); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1559 | if (!buffer.validate((NULL == pr) || |
| 1560 | (pr->getAllocatedSizeInBytes() >= (offset + this->getSafeSize())))) { |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 1561 | origin.setZero(); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1562 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 1563 | SkSafeUnref(this->setPixelRef(pr, origin)); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1564 | break; |
| 1565 | } |
| 1566 | case SERIALIZE_PIXELTYPE_NONE: |
| 1567 | break; |
| 1568 | default: |
| 1569 | SkDEBUGFAIL("unrecognized pixeltype in serialized data"); |
| 1570 | sk_throw(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1571 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1572 | } |
| 1573 | } |
| 1574 | |
| 1575 | /////////////////////////////////////////////////////////////////////////////// |
| 1576 | |
| 1577 | SkBitmap::RLEPixels::RLEPixels(int width, int height) { |
| 1578 | fHeight = height; |
commit-bot@chromium.org | 235002f | 2013-10-09 18:39:59 +0000 | [diff] [blame] | 1579 | fYPtrs = (uint8_t**)sk_calloc_throw(height * sizeof(uint8_t*)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1580 | } |
| 1581 | |
| 1582 | SkBitmap::RLEPixels::~RLEPixels() { |
| 1583 | sk_free(fYPtrs); |
| 1584 | } |
| 1585 | |
| 1586 | /////////////////////////////////////////////////////////////////////////////// |
| 1587 | |
| 1588 | #ifdef SK_DEBUG |
| 1589 | void SkBitmap::validate() const { |
| 1590 | SkASSERT(fConfig < kConfigCount); |
| 1591 | SkASSERT(fRowBytes >= (unsigned)ComputeRowBytes((Config)fConfig, fWidth)); |
scroggo@google.com | 8e990eb | 2013-06-14 15:55:56 +0000 | [diff] [blame] | 1592 | uint8_t allFlags = kImageIsOpaque_Flag | kImageIsVolatile_Flag | kImageIsImmutable_Flag; |
| 1593 | #ifdef SK_BUILD_FOR_ANDROID |
| 1594 | allFlags |= kHasHardwareMipMap_Flag; |
| 1595 | #endif |
| 1596 | SkASSERT(fFlags <= allFlags); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1597 | SkASSERT(fPixelLockCount >= 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1598 | SkASSERT((uint8_t)ComputeBytesPerPixel((Config)fConfig) == fBytesPerPixel); |
| 1599 | |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1600 | if (fPixels) { |
| 1601 | SkASSERT(fPixelRef); |
| 1602 | SkASSERT(fPixelLockCount > 0); |
| 1603 | SkASSERT(fPixelRef->isLocked()); |
commit-bot@chromium.org | f7ba413 | 2014-01-16 15:47:06 +0000 | [diff] [blame^] | 1604 | #if !defined(SK_SUPPORT_LEGACY_ONLOCKPIXELS) |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1605 | SkASSERT(fPixelRef->rowBytes() == fRowBytes); |
commit-bot@chromium.org | f7ba413 | 2014-01-16 15:47:06 +0000 | [diff] [blame^] | 1606 | #endif |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1607 | SkASSERT(fPixelRefOrigin.fX >= 0); |
| 1608 | SkASSERT(fPixelRefOrigin.fY >= 0); |
| 1609 | SkASSERT(fPixelRef->info().fWidth >= (int)fWidth + fPixelRefOrigin.fX); |
| 1610 | SkASSERT(fPixelRef->info().fHeight >= (int)fHeight + fPixelRefOrigin.fY); |
commit-bot@chromium.org | f7ba413 | 2014-01-16 15:47:06 +0000 | [diff] [blame^] | 1611 | #if !defined(SK_SUPPORT_LEGACY_ONLOCKPIXELS) |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1612 | SkASSERT(fPixelRef->rowBytes() >= fWidth * fBytesPerPixel); |
commit-bot@chromium.org | f7ba413 | 2014-01-16 15:47:06 +0000 | [diff] [blame^] | 1613 | #endif |
reed@google.com | 615316c | 2014-01-15 19:15:23 +0000 | [diff] [blame] | 1614 | } else { |
| 1615 | SkASSERT(NULL == fColorTable); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1616 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1617 | } |
| 1618 | #endif |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1619 | |
| 1620 | #ifdef SK_DEVELOPER |
| 1621 | void SkBitmap::toString(SkString* str) const { |
| 1622 | |
| 1623 | static const char* gConfigNames[kConfigCount] = { |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 1624 | "NONE", "A8", "INDEX8", "565", "4444", "8888" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1625 | }; |
| 1626 | |
| 1627 | str->appendf("bitmap: ((%d, %d) %s", this->width(), this->height(), |
| 1628 | gConfigNames[this->config()]); |
| 1629 | |
| 1630 | str->append(" ("); |
| 1631 | if (this->isOpaque()) { |
| 1632 | str->append("opaque"); |
| 1633 | } else { |
| 1634 | str->append("transparent"); |
| 1635 | } |
| 1636 | if (this->isImmutable()) { |
| 1637 | str->append(", immutable"); |
| 1638 | } else { |
| 1639 | str->append(", not-immutable"); |
| 1640 | } |
| 1641 | str->append(")"); |
| 1642 | |
| 1643 | SkPixelRef* pr = this->pixelRef(); |
| 1644 | if (NULL == pr) { |
| 1645 | // show null or the explicit pixel address (rare) |
| 1646 | str->appendf(" pixels:%p", this->getPixels()); |
| 1647 | } else { |
| 1648 | const char* uri = pr->getURI(); |
| 1649 | if (NULL != uri) { |
| 1650 | str->appendf(" uri:\"%s\"", uri); |
| 1651 | } else { |
| 1652 | str->appendf(" pixelref:%p", pr); |
| 1653 | } |
| 1654 | } |
| 1655 | |
| 1656 | str->append(")"); |
| 1657 | } |
| 1658 | #endif |