reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkImage_Base.h" |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 9 | #include "SkBitmap.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkData.h" |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame^] | 12 | #include "SkImageGeneratorPriv.h" |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 13 | #include "SkImagePriv.h" |
| 14 | #include "SkPixelRef.h" |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 15 | #include "SkSurface.h" |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 16 | |
| 17 | class SkImage_Raster : public SkImage_Base { |
| 18 | public: |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 19 | static bool ValidArgs(const Info& info, size_t rowBytes, size_t* minSize) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 20 | const int maxDimension = SK_MaxS32 >> 2; |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 21 | |
reed | b2497c2 | 2014-12-31 12:31:43 -0800 | [diff] [blame] | 22 | if (info.width() <= 0 || info.height() <= 0) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 23 | return false; |
| 24 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 25 | if (info.width() > maxDimension || info.height() > maxDimension) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 26 | return false; |
| 27 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 28 | if ((unsigned)info.colorType() > (unsigned)kLastEnum_SkColorType) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 29 | return false; |
| 30 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 31 | if ((unsigned)info.alphaType() > (unsigned)kLastEnum_SkAlphaType) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 32 | return false; |
| 33 | } |
| 34 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 35 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 36 | return false; |
| 37 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 38 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 39 | // TODO: check colorspace |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 40 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 41 | if (rowBytes < SkImageMinRowBytes(info)) { |
| 42 | return false; |
| 43 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 44 | |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 45 | size_t size = info.getSafeSize(rowBytes); |
| 46 | if (0 == size) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 47 | return false; |
| 48 | } |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 49 | |
| 50 | if (minSize) { |
| 51 | *minSize = size; |
| 52 | } |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 53 | return true; |
| 54 | } |
| 55 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 56 | SkImage_Raster(const SkImageInfo&, SkData*, size_t rb, const SkSurfaceProps*); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 57 | virtual ~SkImage_Raster(); |
| 58 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 59 | SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) const override; |
| 60 | bool onReadPixels(const SkImageInfo&, void*, size_t, int srcX, int srcY) const override; |
| 61 | const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const override; |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame^] | 62 | SkData* onRefEncoded() const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 63 | bool getROPixels(SkBitmap*) const override; |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 64 | |
| 65 | // exposed for SkSurface_Raster via SkNewImageFromPixelRef |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 66 | SkImage_Raster(const SkImageInfo&, SkPixelRef*, const SkIPoint& pixelRefOrigin, size_t rowBytes, |
| 67 | const SkSurfaceProps*); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 68 | |
reed@google.com | 97af1a6 | 2012-08-28 12:19:02 +0000 | [diff] [blame] | 69 | SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); } |
| 70 | |
tfarina | 7831a4b | 2015-04-27 07:53:07 -0700 | [diff] [blame] | 71 | SkShader* onNewShader(SkShader::TileMode, |
| 72 | SkShader::TileMode, |
| 73 | const SkMatrix* localMatrix) const override; |
piotaixr | cef04f8 | 2014-07-14 07:48:04 -0700 | [diff] [blame] | 74 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 75 | bool isOpaque() const override; |
piotaixr | d2a3522 | 2014-08-19 14:29:02 -0700 | [diff] [blame] | 76 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 77 | SkImage_Raster(const SkBitmap& bm, const SkSurfaceProps* props) |
| 78 | : INHERITED(bm.width(), bm.height(), props) |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 79 | , fBitmap(bm) {} |
| 80 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 81 | private: |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 82 | SkImage_Raster() : INHERITED(0, 0, NULL) {} |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 83 | |
| 84 | SkBitmap fBitmap; |
| 85 | |
| 86 | typedef SkImage_Base INHERITED; |
| 87 | }; |
| 88 | |
| 89 | /////////////////////////////////////////////////////////////////////////////// |
| 90 | |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 91 | static void release_data(void* addr, void* context) { |
| 92 | SkData* data = static_cast<SkData*>(context); |
| 93 | data->unref(); |
| 94 | } |
| 95 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 96 | SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes, |
| 97 | const SkSurfaceProps* props) |
| 98 | : INHERITED(info.width(), info.height(), props) |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 99 | { |
| 100 | data->ref(); |
| 101 | void* addr = const_cast<void*>(data->data()); |
commit-bot@chromium.org | 00f8d6c | 2014-05-29 15:57:20 +0000 | [diff] [blame] | 102 | SkColorTable* ctable = NULL; |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 103 | |
commit-bot@chromium.org | 00f8d6c | 2014-05-29 15:57:20 +0000 | [diff] [blame] | 104 | fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 105 | fBitmap.setImmutable(); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 106 | fBitmap.lockPixels(); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 107 | } |
| 108 | |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 109 | SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, const SkIPoint& pixelRefOrigin, |
| 110 | size_t rowBytes, const SkSurfaceProps* props) |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 111 | : INHERITED(info.width(), info.height(), props) |
commit-bot@chromium.org | f190178 | 2014-01-08 22:24:55 +0000 | [diff] [blame] | 112 | { |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 113 | fBitmap.setInfo(info, rowBytes); |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 114 | fBitmap.setPixelRef(pr, pixelRefOrigin); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 115 | fBitmap.lockPixels(); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | SkImage_Raster::~SkImage_Raster() {} |
| 119 | |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 120 | SkShader* SkImage_Raster::onNewShader(SkShader::TileMode tileX, SkShader::TileMode tileY, |
| 121 | const SkMatrix* localMatrix) const { |
piotaixr | 76d5b47 | 2014-07-22 15:02:05 -0700 | [diff] [blame] | 122 | return SkShader::CreateBitmapShader(fBitmap, tileX, tileY, localMatrix); |
piotaixr | cef04f8 | 2014-07-14 07:48:04 -0700 | [diff] [blame] | 123 | } |
| 124 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 125 | SkSurface* SkImage_Raster::onNewSurface(const SkImageInfo& info, const SkSurfaceProps& props) const { |
| 126 | return SkSurface::NewRaster(info, &props); |
| 127 | } |
| 128 | |
reed | 96472de | 2014-12-10 09:53:42 -0800 | [diff] [blame] | 129 | bool SkImage_Raster::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes, |
| 130 | int srcX, int srcY) const { |
reed | b4f629c | 2014-12-25 13:55:08 -0800 | [diff] [blame] | 131 | SkBitmap shallowCopy(fBitmap); |
| 132 | return shallowCopy.readPixels(dstInfo, dstPixels, dstRowBytes, srcX, srcY); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 133 | } |
| 134 | |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 135 | const void* SkImage_Raster::onPeekPixels(SkImageInfo* infoPtr, size_t* rowBytesPtr) const { |
commit-bot@chromium.org | 466f5f3 | 2014-05-27 21:30:37 +0000 | [diff] [blame] | 136 | const SkImageInfo info = fBitmap.info(); |
| 137 | if ((kUnknown_SkColorType == info.colorType()) || !fBitmap.getPixels()) { |
reed@google.com | 2776e01 | 2014-02-06 14:30:44 +0000 | [diff] [blame] | 138 | return NULL; |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 139 | } |
| 140 | *infoPtr = info; |
| 141 | *rowBytesPtr = fBitmap.rowBytes(); |
| 142 | return fBitmap.getPixels(); |
| 143 | } |
| 144 | |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame^] | 145 | SkData* SkImage_Raster::onRefEncoded() const { |
| 146 | SkPixelRef* pr = fBitmap.pixelRef(); |
| 147 | const SkImageInfo prInfo = pr->info(); |
| 148 | const SkImageInfo bmInfo = fBitmap.info(); |
| 149 | |
| 150 | // we only try if we (the image) cover the entire area of the pixelRef |
| 151 | if (prInfo.width() == bmInfo.width() && prInfo.height() == bmInfo.height()) { |
| 152 | return pr->refEncodedData(); |
| 153 | } |
| 154 | return NULL; |
| 155 | } |
| 156 | |
reed@google.com | 4b0757b | 2013-05-20 16:33:41 +0000 | [diff] [blame] | 157 | bool SkImage_Raster::getROPixels(SkBitmap* dst) const { |
| 158 | *dst = fBitmap; |
| 159 | return true; |
| 160 | } |
| 161 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 162 | /////////////////////////////////////////////////////////////////////////////// |
| 163 | |
reed@google.com | 2bd8b81 | 2013-11-01 13:46:54 +0000 | [diff] [blame] | 164 | SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, size_t rowBytes) { |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 165 | size_t size; |
| 166 | if (!SkImage_Raster::ValidArgs(info, rowBytes, &size) || !pixels) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 167 | return NULL; |
| 168 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 169 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 170 | // Here we actually make a copy of the caller's pixel data |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 171 | SkAutoDataUnref data(SkData::NewWithCopy(pixels, size)); |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 172 | return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes, NULL)); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | |
reed@google.com | 999da9c | 2014-02-06 13:43:07 +0000 | [diff] [blame] | 176 | SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t rowBytes) { |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 177 | size_t size; |
| 178 | if (!SkImage_Raster::ValidArgs(info, rowBytes, &size) || !data) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 179 | return NULL; |
| 180 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 181 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 182 | // did they give us enough data? |
reed@google.com | 999da9c | 2014-02-06 13:43:07 +0000 | [diff] [blame] | 183 | if (data->size() < size) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 184 | return NULL; |
| 185 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 186 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 187 | return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes, NULL)); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 188 | } |
| 189 | |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 190 | SkImage* SkImage::NewFromRaster(const SkImageInfo& info, const void* pixels, size_t rowBytes, |
| 191 | RasterReleaseProc proc, ReleaseContext ctx) { |
| 192 | size_t size; |
| 193 | if (!SkImage_Raster::ValidArgs(info, rowBytes, &size) || !pixels) { |
| 194 | return NULL; |
| 195 | } |
| 196 | |
| 197 | SkAutoDataUnref data(SkData::NewWithProc(pixels, size, proc, ctx)); |
| 198 | return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes, NULL)); |
| 199 | } |
| 200 | |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame^] | 201 | SkImage* SkImage::NewFromGenerator(SkImageGenerator* generator, const SkIRect* subset) { |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 202 | SkBitmap bitmap; |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame^] | 203 | if (!SkInstallDiscardablePixelRef(generator, subset, &bitmap, NULL)) { |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 204 | return NULL; |
| 205 | } |
reed | 7983bf9 | 2015-01-23 04:24:16 -0800 | [diff] [blame] | 206 | if (0 == bitmap.width() || 0 == bitmap.height()) { |
| 207 | return NULL; |
| 208 | } |
| 209 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 210 | return SkNEW_ARGS(SkImage_Raster, (bitmap, NULL)); |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 211 | } |
| 212 | |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 213 | SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, |
| 214 | const SkIPoint& pixelRefOrigin, size_t rowBytes, |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 215 | const SkSurfaceProps* props) { |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 216 | if (!SkImage_Raster::ValidArgs(info, rowBytes, NULL)) { |
reed | 7983bf9 | 2015-01-23 04:24:16 -0800 | [diff] [blame] | 217 | return NULL; |
| 218 | } |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 219 | return SkNEW_ARGS(SkImage_Raster, (info, pr, pixelRefOrigin, rowBytes, props)); |
| 220 | } |
| 221 | |
| 222 | SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef, |
| 223 | const SkSurfaceProps* props) { |
reed | de49988 | 2015-06-18 13:41:40 -0700 | [diff] [blame] | 224 | if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes(), NULL)) { |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 225 | return NULL; |
| 226 | } |
| 227 | |
| 228 | SkImage* image = NULL; |
| 229 | if (canSharePixelRef || bm.isImmutable()) { |
| 230 | image = SkNEW_ARGS(SkImage_Raster, (bm, props)); |
| 231 | } else { |
| 232 | bm.lockPixels(); |
| 233 | if (bm.getPixels()) { |
| 234 | image = SkImage::NewRasterCopy(bm.info(), bm.getPixels(), bm.rowBytes()); |
| 235 | } |
| 236 | bm.unlockPixels(); |
| 237 | |
| 238 | // we don't expose props to NewRasterCopy (need a private vers) so post-init it here |
| 239 | if (image && props) { |
| 240 | as_IB(image)->initWithProps(*props); |
| 241 | } |
| 242 | } |
| 243 | return image; |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 244 | } |
| 245 | |
piotaixr | 6515175 | 2014-10-16 11:58:39 -0700 | [diff] [blame] | 246 | const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) { |
| 247 | return ((const SkImage_Raster*)image)->getPixelRef(); |
reed@google.com | 97af1a6 | 2012-08-28 12:19:02 +0000 | [diff] [blame] | 248 | } |
piotaixr | d2a3522 | 2014-08-19 14:29:02 -0700 | [diff] [blame] | 249 | |
| 250 | bool SkImage_Raster::isOpaque() const { |
| 251 | return fBitmap.isOpaque(); |
| 252 | } |
reed | 96a857e | 2015-01-25 10:33:58 -0800 | [diff] [blame] | 253 | |