epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2008 The Android Open Source Project |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
reed@google.com | 2a7579d | 2012-11-07 18:30:18 +0000 | [diff] [blame] | 9 | #include "SkColorPriv.h" |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 10 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 11 | #include "SkImageDecoder.h" |
reed@android.com | b08eb2b | 2009-01-06 20:16:26 +0000 | [diff] [blame] | 12 | #include "SkImageEncoder.h" |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 13 | #include "SkMovie.h" |
| 14 | #include "SkStream.h" |
| 15 | #include "SkTemplates.h" |
reed@android.com | ad789ee | 2011-01-03 19:52:17 +0000 | [diff] [blame] | 16 | #include "SkCGUtils.h" |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 17 | |
yangsu@google.com | 900d877 | 2011-06-24 18:56:00 +0000 | [diff] [blame] | 18 | #ifdef SK_BUILD_FOR_MAC |
| 19 | #include <ApplicationServices/ApplicationServices.h> |
| 20 | #endif |
| 21 | |
| 22 | #ifdef SK_BUILD_FOR_IOS |
| 23 | #include <CoreGraphics/CoreGraphics.h> |
caryclark@google.com | 35f5ac9 | 2012-09-18 15:41:18 +0000 | [diff] [blame] | 24 | #include <ImageIO/ImageIO.h> |
caryclark@google.com | 594dd3c | 2012-09-24 19:33:57 +0000 | [diff] [blame] | 25 | #include <MobileCoreServices/MobileCoreServices.h> |
yangsu@google.com | 900d877 | 2011-06-24 18:56:00 +0000 | [diff] [blame] | 26 | #endif |
yangsu@google.com | c134f39 | 2011-06-23 22:27:30 +0000 | [diff] [blame] | 27 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 28 | static void malloc_release_proc(void* info, const void* data, size_t size) { |
| 29 | sk_free(info); |
| 30 | } |
| 31 | |
| 32 | static CGDataProviderRef SkStreamToDataProvider(SkStream* stream) { |
| 33 | // TODO: use callbacks, so we don't have to load all the data into RAM |
| 34 | size_t len = stream->getLength(); |
| 35 | void* data = sk_malloc_throw(len); |
| 36 | stream->read(data, len); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 37 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 38 | return CGDataProviderCreateWithData(data, data, len, malloc_release_proc); |
| 39 | } |
| 40 | |
| 41 | static CGImageSourceRef SkStreamToCGImageSource(SkStream* stream) { |
| 42 | CGDataProviderRef data = SkStreamToDataProvider(stream); |
| 43 | CGImageSourceRef imageSrc = CGImageSourceCreateWithDataProvider(data, 0); |
| 44 | CGDataProviderRelease(data); |
| 45 | return imageSrc; |
| 46 | } |
| 47 | |
| 48 | class SkImageDecoder_CG : public SkImageDecoder { |
| 49 | protected: |
reed@android.com | 3f1f06a | 2010-03-03 21:04:12 +0000 | [diff] [blame] | 50 | virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode); |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 51 | }; |
| 52 | |
| 53 | #define BITMAP_INFO (kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedLast) |
| 54 | |
reed@android.com | 3f1f06a | 2010-03-03 21:04:12 +0000 | [diff] [blame] | 55 | bool SkImageDecoder_CG::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) { |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 56 | CGImageSourceRef imageSrc = SkStreamToCGImageSource(stream); |
| 57 | |
| 58 | if (NULL == imageSrc) { |
| 59 | return false; |
| 60 | } |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 61 | SkAutoTCallVProc<const void, CFRelease> arsrc(imageSrc); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 62 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 63 | CGImageRef image = CGImageSourceCreateImageAtIndex(imageSrc, 0, NULL); |
| 64 | if (NULL == image) { |
| 65 | return false; |
| 66 | } |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 67 | SkAutoTCallVProc<CGImage, CGImageRelease> arimage(image); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 68 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 69 | const int width = CGImageGetWidth(image); |
| 70 | const int height = CGImageGetHeight(image); |
| 71 | bm->setConfig(SkBitmap::kARGB_8888_Config, width, height); |
| 72 | if (SkImageDecoder::kDecodeBounds_Mode == mode) { |
| 73 | return true; |
| 74 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 75 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 76 | if (!this->allocPixelRef(bm, NULL)) { |
| 77 | return false; |
| 78 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 79 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 80 | bm->lockPixels(); |
junov@google.com | dbfac8a | 2012-12-06 21:47:40 +0000 | [diff] [blame] | 81 | bm->eraseColor(SK_ColorTRANSPARENT); |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 82 | |
reed@google.com | af9d9c2 | 2011-06-15 17:33:29 +0000 | [diff] [blame] | 83 | // use the same colorspace, so we don't change the pixels at all |
| 84 | CGColorSpaceRef cs = CGImageGetColorSpace(image); |
mike@reedtribe.org | 5bff6ec | 2012-12-15 12:35:17 +0000 | [diff] [blame] | 85 | CGContextRef cg = CGBitmapContextCreate(bm->getPixels(), width, height, 8, bm->rowBytes(), cs, BITMAP_INFO); |
| 86 | if (NULL == cg) { |
| 87 | // perhaps the image's colorspace does not work for a context, so try just rgb |
| 88 | cs = CGColorSpaceCreateDeviceRGB(); |
| 89 | cg = CGBitmapContextCreate(bm->getPixels(), width, height, 8, bm->rowBytes(), cs, BITMAP_INFO); |
| 90 | CFRelease(cs); |
| 91 | } |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 92 | CGContextDrawImage(cg, CGRectMake(0, 0, width, height), image); |
| 93 | CGContextRelease(cg); |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 94 | |
reed@google.com | 52e91bf | 2012-11-07 22:06:55 +0000 | [diff] [blame] | 95 | CGImageAlphaInfo info = CGImageGetAlphaInfo(image); |
| 96 | switch (info) { |
| 97 | case kCGImageAlphaNone: |
| 98 | case kCGImageAlphaNoneSkipLast: |
| 99 | case kCGImageAlphaNoneSkipFirst: |
| 100 | SkASSERT(SkBitmap::ComputeIsOpaque(*bm)); |
| 101 | bm->setIsOpaque(true); |
| 102 | break; |
| 103 | default: |
| 104 | // we don't know if we're opaque or not, so compute it. |
| 105 | bm->computeAndSetOpaquePredicate(); |
| 106 | } |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 107 | bm->unlockPixels(); |
| 108 | return true; |
| 109 | } |
| 110 | |
| 111 | /////////////////////////////////////////////////////////////////////////////// |
| 112 | |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 113 | extern SkImageDecoder* image_decoder_from_stream(SkStream*); |
| 114 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 115 | SkImageDecoder* SkImageDecoder::Factory(SkStream* stream) { |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 116 | SkImageDecoder* decoder = image_decoder_from_stream(stream); |
| 117 | if (NULL == decoder) { |
| 118 | // If no image decoder specific to the stream exists, use SkImageDecoder_CG. |
| 119 | return SkNEW(SkImageDecoder_CG); |
| 120 | } else { |
| 121 | return decoder; |
| 122 | } |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 123 | } |
| 124 | |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 125 | ///////////////////////////////////////////////////////////////////////// |
| 126 | |
| 127 | SkMovie* SkMovie::DecodeStream(SkStream* stream) { |
| 128 | return NULL; |
| 129 | } |
| 130 | |
| 131 | ///////////////////////////////////////////////////////////////////////// |
| 132 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 133 | static size_t consumer_put(void* info, const void* buffer, size_t count) { |
| 134 | SkWStream* stream = reinterpret_cast<SkWStream*>(info); |
| 135 | return stream->write(buffer, count) ? count : 0; |
| 136 | } |
| 137 | |
| 138 | static void consumer_release(void* info) { |
| 139 | // we do nothing, since by design we don't "own" the stream (i.e. info) |
| 140 | } |
| 141 | |
| 142 | static CGDataConsumerRef SkStreamToCGDataConsumer(SkWStream* stream) { |
| 143 | CGDataConsumerCallbacks procs; |
| 144 | procs.putBytes = consumer_put; |
| 145 | procs.releaseConsumer = consumer_release; |
| 146 | // we don't own/reference the stream, so it our consumer must not live |
| 147 | // longer that our caller's ownership of the stream |
| 148 | return CGDataConsumerCreate(stream, &procs); |
| 149 | } |
| 150 | |
| 151 | static CGImageDestinationRef SkStreamToImageDestination(SkWStream* stream, |
| 152 | CFStringRef type) { |
| 153 | CGDataConsumerRef consumer = SkStreamToCGDataConsumer(stream); |
| 154 | if (NULL == consumer) { |
| 155 | return NULL; |
| 156 | } |
| 157 | SkAutoTCallVProc<const void, CFRelease> arconsumer(consumer); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 158 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 159 | return CGImageDestinationCreateWithDataConsumer(consumer, type, 1, NULL); |
| 160 | } |
| 161 | |
| 162 | class SkImageEncoder_CG : public SkImageEncoder { |
| 163 | public: |
| 164 | SkImageEncoder_CG(Type t) : fType(t) {} |
| 165 | |
| 166 | protected: |
| 167 | virtual bool onEncode(SkWStream* stream, const SkBitmap& bm, int quality); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 168 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 169 | private: |
| 170 | Type fType; |
| 171 | }; |
| 172 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 173 | /* Encode bitmaps via CGImageDestination. We setup a DataConsumer which writes |
| 174 | to our SkWStream. Since we don't reference/own the SkWStream, our consumer |
| 175 | must only live for the duration of the onEncode() method. |
| 176 | */ |
| 177 | bool SkImageEncoder_CG::onEncode(SkWStream* stream, const SkBitmap& bm, |
| 178 | int quality) { |
scroggo@google.com | 5a7c6be | 2012-10-04 21:46:08 +0000 | [diff] [blame] | 179 | // Used for converting a bitmap to 8888. |
| 180 | const SkBitmap* bmPtr = &bm; |
| 181 | SkBitmap bitmap8888; |
| 182 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 183 | CFStringRef type; |
| 184 | switch (fType) { |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 185 | case kICO_Type: |
| 186 | type = kUTTypeICO; |
| 187 | break; |
| 188 | case kBMP_Type: |
| 189 | type = kUTTypeBMP; |
| 190 | break; |
| 191 | case kGIF_Type: |
| 192 | type = kUTTypeGIF; |
| 193 | break; |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 194 | case kJPEG_Type: |
| 195 | type = kUTTypeJPEG; |
| 196 | break; |
| 197 | case kPNG_Type: |
scroggo@google.com | 5a7c6be | 2012-10-04 21:46:08 +0000 | [diff] [blame] | 198 | // PNG encoding an ARGB_4444 bitmap gives the following errors in GM: |
| 199 | // <Error>: CGImageDestinationAddImage image could not be converted to destination |
| 200 | // format. |
| 201 | // <Error>: CGImageDestinationFinalize image destination does not have enough images |
| 202 | // So instead we copy to 8888. |
| 203 | if (bm.getConfig() == SkBitmap::kARGB_4444_Config) { |
| 204 | bm.copyTo(&bitmap8888, SkBitmap::kARGB_8888_Config); |
| 205 | bmPtr = &bitmap8888; |
| 206 | } |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 207 | type = kUTTypePNG; |
| 208 | break; |
| 209 | default: |
| 210 | return false; |
| 211 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 212 | |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 213 | CGImageDestinationRef dst = SkStreamToImageDestination(stream, type); |
| 214 | if (NULL == dst) { |
| 215 | return false; |
| 216 | } |
| 217 | SkAutoTCallVProc<const void, CFRelease> ardst(dst); |
| 218 | |
scroggo@google.com | 5a7c6be | 2012-10-04 21:46:08 +0000 | [diff] [blame] | 219 | CGImageRef image = SkCreateCGImageRef(*bmPtr); |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 220 | if (NULL == image) { |
| 221 | return false; |
| 222 | } |
| 223 | SkAutoTCallVProc<CGImage, CGImageRelease> agimage(image); |
epoger@google.com | 0928c4a | 2012-01-31 15:14:08 +0000 | [diff] [blame] | 224 | |
| 225 | CGImageDestinationAddImage(dst, image, NULL); |
| 226 | return CGImageDestinationFinalize(dst); |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 227 | } |
| 228 | |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 229 | /////////////////////////////////////////////////////////////////////////////// |
| 230 | |
| 231 | #include "SkTRegistry.h" |
| 232 | |
| 233 | static SkImageEncoder* sk_imageencoder_cg_factory(SkImageEncoder::Type t) { |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 234 | switch (t) { |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 235 | case SkImageEncoder::kICO_Type: |
| 236 | case SkImageEncoder::kBMP_Type: |
| 237 | case SkImageEncoder::kGIF_Type: |
| 238 | case SkImageEncoder::kJPEG_Type: |
| 239 | case SkImageEncoder::kPNG_Type: |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 240 | break; |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 241 | default: |
| 242 | return NULL; |
| 243 | } |
reed@android.com | 0ae6b24 | 2008-12-23 16:49:54 +0000 | [diff] [blame] | 244 | return SkNEW_ARGS(SkImageEncoder_CG, (t)); |
reed@android.com | 0767e47 | 2008-12-23 16:06:51 +0000 | [diff] [blame] | 245 | } |
scroggo@google.com | 4c6adf9 | 2013-04-17 21:07:55 +0000 | [diff] [blame] | 246 | |
| 247 | static SkTRegistry<SkImageEncoder*, SkImageEncoder::Type> gEReg(sk_imageencoder_cg_factory); |
scroggo@google.com | 39edf4c | 2013-04-25 17:33:51 +0000 | [diff] [blame^] | 248 | |
| 249 | struct FormatConversion { |
| 250 | CFStringRef fUTType; |
| 251 | SkImageDecoder::Format fFormat; |
| 252 | }; |
| 253 | |
| 254 | // Array of the types supported by the decoder. |
| 255 | static const FormatConversion gFormatConversions[] = { |
| 256 | { kUTTypeBMP, SkImageDecoder::kBMP_Format }, |
| 257 | { kUTTypeGIF, SkImageDecoder::kGIF_Format }, |
| 258 | { kUTTypeICO, SkImageDecoder::kICO_Format }, |
| 259 | { kUTTypeJPEG, SkImageDecoder::kJPEG_Format }, |
| 260 | // Also include JPEG2000 |
| 261 | { kUTTypeJPEG2000, SkImageDecoder::kJPEG_Format }, |
| 262 | { kUTTypePNG, SkImageDecoder::kPNG_Format }, |
| 263 | }; |
| 264 | |
| 265 | static SkImageDecoder::Format UTType_to_Format(const CFStringRef uttype) { |
| 266 | for (size_t i = 0; i < SK_ARRAY_COUNT(gFormatConversions); i++) { |
| 267 | if (CFStringCompare(uttype, gFormatConversions[i].fUTType, 0) == kCFCompareEqualTo) { |
| 268 | return gFormatConversions[i].fFormat; |
| 269 | } |
| 270 | } |
| 271 | return SkImageDecoder::kUnknown_Format; |
| 272 | } |
| 273 | |
| 274 | static SkImageDecoder::Format get_format_cg(SkStream *stream) { |
| 275 | CGImageSourceRef imageSrc = SkStreamToCGImageSource(stream); |
| 276 | |
| 277 | if (NULL == imageSrc) { |
| 278 | return SkImageDecoder::kUnknown_Format; |
| 279 | } |
| 280 | |
| 281 | SkAutoTCallVProc<const void, CFRelease> arsrc(imageSrc); |
| 282 | const CFStringRef name = CGImageSourceGetType(imageSrc); |
| 283 | if (NULL == name) { |
| 284 | return SkImageDecoder::kUnknown_Format; |
| 285 | } |
| 286 | return UTType_to_Format(name); |
| 287 | } |
| 288 | |
| 289 | static SkTRegistry<SkImageDecoder::Format, SkStream*> gFormatReg(get_format_cg); |