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 | 5965c8a | 2015-01-07 18:04:45 -0800 | [diff] [blame] | 12 | #include "SkImageGenerator.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: |
mike@reedtribe.org | b947625 | 2012-11-15 02:37:45 +0000 | [diff] [blame] | 19 | static bool ValidArgs(const Info& info, size_t rowBytes) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 20 | const int maxDimension = SK_MaxS32 >> 2; |
| 21 | const size_t kMaxPixelByteSize = SK_MaxS32; |
| 22 | |
reed | b2497c2 | 2014-12-31 12:31:43 -0800 | [diff] [blame] | 23 | if (info.width() <= 0 || info.height() <= 0) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 24 | return false; |
| 25 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 26 | if (info.width() > maxDimension || info.height() > maxDimension) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 27 | return false; |
| 28 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 29 | if ((unsigned)info.colorType() > (unsigned)kLastEnum_SkColorType) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 30 | return false; |
| 31 | } |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 32 | if ((unsigned)info.alphaType() > (unsigned)kLastEnum_SkAlphaType) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 33 | return false; |
| 34 | } |
| 35 | |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 36 | if (kUnknown_SkColorType == info.colorType()) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 37 | return false; |
| 38 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 39 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 40 | // TODO: check colorspace |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 41 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 42 | if (rowBytes < SkImageMinRowBytes(info)) { |
| 43 | return false; |
| 44 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 45 | |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 46 | int64_t size = (int64_t)info.height() * rowBytes; |
bsalomon@google.com | d9e0181 | 2012-08-29 19:35:44 +0000 | [diff] [blame] | 47 | if (size > (int64_t)kMaxPixelByteSize) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 48 | return false; |
| 49 | } |
| 50 | return true; |
| 51 | } |
| 52 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 53 | SkImage_Raster(const SkImageInfo&, SkData*, size_t rb, const SkSurfaceProps*); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 54 | virtual ~SkImage_Raster(); |
| 55 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 56 | void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) const override; |
| 57 | void onDrawRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) const override; |
| 58 | SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) const override; |
| 59 | bool onReadPixels(const SkImageInfo&, void*, size_t, int srcX, int srcY) const override; |
| 60 | const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const override; |
| 61 | bool getROPixels(SkBitmap*) const override; |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 62 | |
| 63 | // exposed for SkSurface_Raster via SkNewImageFromPixelRef |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 64 | SkImage_Raster(const SkImageInfo&, SkPixelRef*, const SkIPoint& pixelRefOrigin, size_t rowBytes, |
| 65 | const SkSurfaceProps*); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 66 | |
reed@google.com | 97af1a6 | 2012-08-28 12:19:02 +0000 | [diff] [blame] | 67 | SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); } |
| 68 | |
piotaixr | 76d5b47 | 2014-07-22 15:02:05 -0700 | [diff] [blame] | 69 | virtual SkShader* onNewShader(SkShader::TileMode, |
| 70 | SkShader::TileMode, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 71 | const SkMatrix* localMatrix) const override; |
piotaixr | cef04f8 | 2014-07-14 07:48:04 -0700 | [diff] [blame] | 72 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 73 | bool isOpaque() const override; |
piotaixr | d2a3522 | 2014-08-19 14:29:02 -0700 | [diff] [blame] | 74 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 75 | SkImage_Raster(const SkBitmap& bm, const SkSurfaceProps* props) |
| 76 | : INHERITED(bm.width(), bm.height(), props) |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 77 | , fBitmap(bm) {} |
| 78 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 79 | private: |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 80 | SkImage_Raster() : INHERITED(0, 0, NULL) {} |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 81 | |
| 82 | SkBitmap fBitmap; |
| 83 | |
| 84 | typedef SkImage_Base INHERITED; |
| 85 | }; |
| 86 | |
| 87 | /////////////////////////////////////////////////////////////////////////////// |
| 88 | |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 89 | static void release_data(void* addr, void* context) { |
| 90 | SkData* data = static_cast<SkData*>(context); |
| 91 | data->unref(); |
| 92 | } |
| 93 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 94 | SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes, |
| 95 | const SkSurfaceProps* props) |
| 96 | : INHERITED(info.width(), info.height(), props) |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 97 | { |
| 98 | data->ref(); |
| 99 | void* addr = const_cast<void*>(data->data()); |
commit-bot@chromium.org | 00f8d6c | 2014-05-29 15:57:20 +0000 | [diff] [blame] | 100 | SkColorTable* ctable = NULL; |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 101 | |
commit-bot@chromium.org | 00f8d6c | 2014-05-29 15:57:20 +0000 | [diff] [blame] | 102 | fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 103 | fBitmap.setImmutable(); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 104 | fBitmap.lockPixels(); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 105 | } |
| 106 | |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 107 | SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, const SkIPoint& pixelRefOrigin, |
| 108 | size_t rowBytes, const SkSurfaceProps* props) |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 109 | : INHERITED(info.width(), info.height(), props) |
commit-bot@chromium.org | f190178 | 2014-01-08 22:24:55 +0000 | [diff] [blame] | 110 | { |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 111 | fBitmap.setInfo(info, rowBytes); |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 112 | fBitmap.setPixelRef(pr, pixelRefOrigin); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 113 | fBitmap.lockPixels(); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | SkImage_Raster::~SkImage_Raster() {} |
| 117 | |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 118 | SkShader* SkImage_Raster::onNewShader(SkShader::TileMode tileX, SkShader::TileMode tileY, |
| 119 | const SkMatrix* localMatrix) const { |
piotaixr | 76d5b47 | 2014-07-22 15:02:05 -0700 | [diff] [blame] | 120 | return SkShader::CreateBitmapShader(fBitmap, tileX, tileY, localMatrix); |
piotaixr | cef04f8 | 2014-07-14 07:48:04 -0700 | [diff] [blame] | 121 | } |
| 122 | |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 123 | void SkImage_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const { |
reed | b4f629c | 2014-12-25 13:55:08 -0800 | [diff] [blame] | 124 | SkBitmap shallowCopy(fBitmap); |
| 125 | canvas->drawBitmap(shallowCopy, x, y, paint); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 126 | } |
| 127 | |
piotaixr | 5ceff91 | 2014-09-26 07:36:26 -0700 | [diff] [blame] | 128 | void SkImage_Raster::onDrawRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst, |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 129 | const SkPaint* paint) const { |
reed | b4f629c | 2014-12-25 13:55:08 -0800 | [diff] [blame] | 130 | SkBitmap shallowCopy(fBitmap); |
| 131 | canvas->drawBitmapRectToRect(shallowCopy, src, dst, paint); |
commit-bot@chromium.org | dfec28d | 2013-07-23 15:52:16 +0000 | [diff] [blame] | 132 | } |
| 133 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 134 | SkSurface* SkImage_Raster::onNewSurface(const SkImageInfo& info, const SkSurfaceProps& props) const { |
| 135 | return SkSurface::NewRaster(info, &props); |
| 136 | } |
| 137 | |
reed | 96472de | 2014-12-10 09:53:42 -0800 | [diff] [blame] | 138 | bool SkImage_Raster::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes, |
| 139 | int srcX, int srcY) const { |
reed | b4f629c | 2014-12-25 13:55:08 -0800 | [diff] [blame] | 140 | SkBitmap shallowCopy(fBitmap); |
| 141 | return shallowCopy.readPixels(dstInfo, dstPixels, dstRowBytes, srcX, srcY); |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 142 | } |
| 143 | |
reed | 8572fc0 | 2014-08-11 13:03:55 -0700 | [diff] [blame] | 144 | 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] | 145 | const SkImageInfo info = fBitmap.info(); |
| 146 | if ((kUnknown_SkColorType == info.colorType()) || !fBitmap.getPixels()) { |
reed@google.com | 2776e01 | 2014-02-06 14:30:44 +0000 | [diff] [blame] | 147 | return NULL; |
reed@google.com | 4f7c615 | 2014-02-06 14:11:56 +0000 | [diff] [blame] | 148 | } |
| 149 | *infoPtr = info; |
| 150 | *rowBytesPtr = fBitmap.rowBytes(); |
| 151 | return fBitmap.getPixels(); |
| 152 | } |
| 153 | |
reed@google.com | 4b0757b | 2013-05-20 16:33:41 +0000 | [diff] [blame] | 154 | bool SkImage_Raster::getROPixels(SkBitmap* dst) const { |
| 155 | *dst = fBitmap; |
| 156 | return true; |
| 157 | } |
| 158 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 159 | /////////////////////////////////////////////////////////////////////////////// |
| 160 | |
reed@google.com | 2bd8b81 | 2013-11-01 13:46:54 +0000 | [diff] [blame] | 161 | SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, size_t rowBytes) { |
reed | b2497c2 | 2014-12-31 12:31:43 -0800 | [diff] [blame] | 162 | if (!SkImage_Raster::ValidArgs(info, rowBytes) || !pixels) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 163 | return NULL; |
| 164 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 165 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 166 | // Here we actually make a copy of the caller's pixel data |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 167 | SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.height() * rowBytes)); |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 168 | return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes, NULL)); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | |
reed@google.com | 999da9c | 2014-02-06 13:43:07 +0000 | [diff] [blame] | 172 | SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t rowBytes) { |
reed | b2497c2 | 2014-12-31 12:31:43 -0800 | [diff] [blame] | 173 | if (!SkImage_Raster::ValidArgs(info, rowBytes) || !data) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 174 | return NULL; |
| 175 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 176 | |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 177 | // did they give us enough data? |
reed | e5ea500 | 2014-09-03 11:54:58 -0700 | [diff] [blame] | 178 | size_t size = info.height() * rowBytes; |
reed@google.com | 999da9c | 2014-02-06 13:43:07 +0000 | [diff] [blame] | 179 | if (data->size() < size) { |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 180 | return NULL; |
| 181 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 182 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 183 | return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes, NULL)); |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 184 | } |
| 185 | |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 186 | SkImage* SkImage::NewFromGenerator(SkImageGenerator* generator) { |
| 187 | SkBitmap bitmap; |
| 188 | if (!SkInstallDiscardablePixelRef(generator, &bitmap)) { |
| 189 | return NULL; |
| 190 | } |
reed | 7983bf9 | 2015-01-23 04:24:16 -0800 | [diff] [blame] | 191 | if (0 == bitmap.width() || 0 == bitmap.height()) { |
| 192 | return NULL; |
| 193 | } |
| 194 | |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 195 | return SkNEW_ARGS(SkImage_Raster, (bitmap, NULL)); |
halcanary | ea4673f | 2014-08-18 08:27:09 -0700 | [diff] [blame] | 196 | } |
| 197 | |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 198 | SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, |
| 199 | const SkIPoint& pixelRefOrigin, size_t rowBytes, |
reed | 4af267b | 2014-11-21 08:46:37 -0800 | [diff] [blame] | 200 | const SkSurfaceProps* props) { |
reed | 7983bf9 | 2015-01-23 04:24:16 -0800 | [diff] [blame] | 201 | if (!SkImage_Raster::ValidArgs(info, rowBytes)) { |
| 202 | return NULL; |
| 203 | } |
kkinnunen | 73953e7 | 2015-02-23 22:12:12 -0800 | [diff] [blame] | 204 | return SkNEW_ARGS(SkImage_Raster, (info, pr, pixelRefOrigin, rowBytes, props)); |
| 205 | } |
| 206 | |
| 207 | SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef, |
| 208 | const SkSurfaceProps* props) { |
| 209 | if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes())) { |
| 210 | return NULL; |
| 211 | } |
| 212 | |
| 213 | SkImage* image = NULL; |
| 214 | if (canSharePixelRef || bm.isImmutable()) { |
| 215 | image = SkNEW_ARGS(SkImage_Raster, (bm, props)); |
| 216 | } else { |
| 217 | bm.lockPixels(); |
| 218 | if (bm.getPixels()) { |
| 219 | image = SkImage::NewRasterCopy(bm.info(), bm.getPixels(), bm.rowBytes()); |
| 220 | } |
| 221 | bm.unlockPixels(); |
| 222 | |
| 223 | // we don't expose props to NewRasterCopy (need a private vers) so post-init it here |
| 224 | if (image && props) { |
| 225 | as_IB(image)->initWithProps(*props); |
| 226 | } |
| 227 | } |
| 228 | return image; |
reed@google.com | 58b21ec | 2012-07-30 18:20:12 +0000 | [diff] [blame] | 229 | } |
| 230 | |
piotaixr | 6515175 | 2014-10-16 11:58:39 -0700 | [diff] [blame] | 231 | const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) { |
| 232 | return ((const SkImage_Raster*)image)->getPixelRef(); |
reed@google.com | 97af1a6 | 2012-08-28 12:19:02 +0000 | [diff] [blame] | 233 | } |
piotaixr | d2a3522 | 2014-08-19 14:29:02 -0700 | [diff] [blame] | 234 | |
| 235 | bool SkImage_Raster::isOpaque() const { |
| 236 | return fBitmap.isOpaque(); |
| 237 | } |
reed | 96a857e | 2015-01-25 10:33:58 -0800 | [diff] [blame] | 238 | |