2 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <dali/internal/imaging/common/image-loader.h>
19 #include <dali/devel-api/common/ref-counted-dali-vector.h>
20 #include <dali/internal/imaging/common/pixel-buffer-impl.h>
22 #include <dali/internal/imaging/common/loader-astc.h>
23 #include <dali/internal/imaging/common/loader-bmp.h>
24 #include <dali/internal/imaging/common/loader-gif.h>
25 #include <dali/internal/imaging/common/loader-ico.h>
26 #include <dali/internal/imaging/common/loader-jpeg.h>
27 #include <dali/internal/imaging/common/loader-ktx.h>
28 #include <dali/internal/imaging/common/loader-png.h>
29 #include <dali/internal/imaging/common/loader-wbmp.h>
30 #include <dali/internal/imaging/common/image-operations.h>
31 #include <dali/devel-api/adaptor-framework/image-loader-input.h>
32 #include <dali/internal/imaging/common/image-loader-plugin-proxy.h>
33 #include <dali/internal/system/common/file-reader.h>
35 using namespace Dali::Integration;
39 namespace TizenPlatform
44 #if defined(DEBUG_ENABLED)
45 Integration::Log::Filter* gLogFilter = Debug::Filter::New( Debug::Concise, false, "LOG_IMAGE_LOADING" );
48 static unsigned int gMaxTextureSize = 4096;
51 * Enum for file formats, has to be in sync with BITMAP_LOADER_LOOKUP_TABLE
55 // Unknown file format
58 // formats that use magic bytes
66 FORMAT_MAGIC_BYTE_COUNT,
68 // formats after this one do not use magic bytes
69 FORMAT_WBMP = FORMAT_MAGIC_BYTE_COUNT,
74 * A lookup table containing all the bitmap loaders with the appropriate information.
75 * Has to be in sync with enum FileFormats
77 const Dali::ImageLoader::BitmapLoader BITMAP_LOADER_LOOKUP_TABLE[FORMAT_TOTAL_COUNT] =
79 { Png::MAGIC_BYTE_1, Png::MAGIC_BYTE_2, LoadBitmapFromPng, LoadPngHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
80 { Jpeg::MAGIC_BYTE_1, Jpeg::MAGIC_BYTE_2, LoadBitmapFromJpeg, LoadJpegHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
81 { Bmp::MAGIC_BYTE_1, Bmp::MAGIC_BYTE_2, LoadBitmapFromBmp, LoadBmpHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
82 { Gif::MAGIC_BYTE_1, Gif::MAGIC_BYTE_2, LoadBitmapFromGif, LoadGifHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
83 { Ktx::MAGIC_BYTE_1, Ktx::MAGIC_BYTE_2, LoadBitmapFromKtx, LoadKtxHeader, Bitmap::BITMAP_COMPRESSED },
84 { Astc::MAGIC_BYTE_1, Astc::MAGIC_BYTE_2, LoadBitmapFromAstc, LoadAstcHeader, Bitmap::BITMAP_COMPRESSED },
85 { Ico::MAGIC_BYTE_1, Ico::MAGIC_BYTE_2, LoadBitmapFromIco, LoadIcoHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
86 { 0x0, 0x0, LoadBitmapFromWbmp, LoadWbmpHeader, Bitmap::BITMAP_2D_PACKED_PIXELS },
89 const unsigned int MAGIC_LENGTH = 2;
92 * This code tries to predict the file format from the filename to help with format picking.
94 struct FormatExtension
96 const std::string extension;
100 const FormatExtension FORMAT_EXTENSIONS[] =
102 { ".png", FORMAT_PNG },
103 { ".jpg", FORMAT_JPEG },
104 { ".bmp", FORMAT_BMP },
105 { ".gif", FORMAT_GIF },
106 { ".ktx", FORMAT_KTX },
107 { ".astc", FORMAT_ASTC },
108 { ".ico", FORMAT_ICO },
109 { ".wbmp", FORMAT_WBMP }
112 const unsigned int FORMAT_EXTENSIONS_COUNT = sizeof(FORMAT_EXTENSIONS) / sizeof(FormatExtension);
114 FileFormats GetFormatHint( const std::string& filename )
116 FileFormats format = FORMAT_UNKNOWN;
118 for ( unsigned int i = 0; i < FORMAT_EXTENSIONS_COUNT; ++i )
120 unsigned int length = FORMAT_EXTENSIONS[i].extension.size();
121 if ( ( filename.size() > length ) &&
122 ( 0 == filename.compare( filename.size() - length, length, FORMAT_EXTENSIONS[i].extension ) ) )
124 format = FORMAT_EXTENSIONS[i].format;
133 * Checks the magic bytes of the file first to determine which Image decoder to use to decode the
135 * @param[in] fp The file to decode
136 * @param[in] format Hint about what format to try first
137 * @param[out] loader Set with the function to use to decode the image
138 * @param[out] header Set with the function to use to decode the header
139 * @param[out] profile The kind of bitmap to hold the bits loaded for the bitmap.
140 * @return true, if we can decode the image, false otherwise
142 bool GetBitmapLoaderFunctions( FILE *fp,
144 Dali::ImageLoader::LoadBitmapFunction& loader,
145 Dali::ImageLoader::LoadBitmapHeaderFunction& header,
146 Bitmap::Profile& profile,
147 const std::string& filename )
149 unsigned char magic[MAGIC_LENGTH];
150 size_t read = fread(magic, sizeof(unsigned char), MAGIC_LENGTH, fp);
152 // Reset to the start of the file.
153 if( fseek(fp, 0, SEEK_SET) )
155 DALI_LOG_ERROR("Error seeking to start of file\n");
158 if (read != MAGIC_LENGTH)
163 bool loaderFound = false;
164 const Dali::ImageLoader::BitmapLoader *lookupPtr = BITMAP_LOADER_LOOKUP_TABLE;
165 Dali::ImageLoader::Input defaultInput( fp );
167 // try plugin image loader
168 const Dali::ImageLoader::BitmapLoader* data = Internal::Adaptor::ImageLoaderPluginProxy::BitmapLoaderLookup( filename );
172 unsigned int width = 0;
173 unsigned int height = 0;
174 loaderFound = lookupPtr->header( fp, width, height );
178 if ( false == loaderFound && format != FORMAT_UNKNOWN )
180 lookupPtr = BITMAP_LOADER_LOOKUP_TABLE + format;
181 if ( format >= FORMAT_MAGIC_BYTE_COUNT ||
182 ( lookupPtr->magicByte1 == magic[0] && lookupPtr->magicByte2 == magic[1] ) )
184 unsigned int width = 0;
185 unsigned int height = 0;
186 loaderFound = lookupPtr->header( fp, width, height );
190 // then try to get a match with formats that have magic bytes
191 if ( false == loaderFound )
193 for ( lookupPtr = BITMAP_LOADER_LOOKUP_TABLE;
194 lookupPtr < BITMAP_LOADER_LOOKUP_TABLE + FORMAT_MAGIC_BYTE_COUNT;
197 if ( lookupPtr->magicByte1 == magic[0] && lookupPtr->magicByte2 == magic[1] )
199 // to seperate ico file format and wbmp file format
200 unsigned int width = 0;
201 unsigned int height = 0;
202 loaderFound = lookupPtr->header(fp, width, height);
211 // finally try formats that do not use magic bytes
212 if ( false == loaderFound )
214 for ( lookupPtr = BITMAP_LOADER_LOOKUP_TABLE + FORMAT_MAGIC_BYTE_COUNT;
215 lookupPtr < BITMAP_LOADER_LOOKUP_TABLE + FORMAT_TOTAL_COUNT;
218 // to seperate ico file format and wbmp file format
219 unsigned int width = 0;
220 unsigned int height = 0;
221 loaderFound = lookupPtr->header(fp, width, height);
229 // if a loader was found set the outputs
232 loader = lookupPtr->loader;
233 header = lookupPtr->header;
234 profile = lookupPtr->profile;
237 // Reset to the start of the file.
238 if( fseek(fp, 0, SEEK_SET) )
240 DALI_LOG_ERROR("Error seeking to start of file\n");
246 } // anonymous namespace
249 namespace ImageLoader
252 bool ConvertStreamToBitmap( const BitmapResourceType& resource, std::string path, FILE * const fp, Dali::Devel::PixelBuffer& pixelBuffer )
254 DALI_LOG_TRACE_METHOD( gLogFilter );
260 Dali::ImageLoader::LoadBitmapFunction function;
261 Dali::ImageLoader::LoadBitmapHeaderFunction header;
263 Bitmap::Profile profile;
265 if ( GetBitmapLoaderFunctions( fp,
266 GetFormatHint( path ),
272 const Dali::ImageLoader::ScalingParameters scalingParameters( resource.size, resource.scalingMode, resource.samplingMode );
273 const Dali::ImageLoader::Input input( fp, scalingParameters, resource.orientationCorrection );
275 // Run the image type decoder:
276 result = function( input, pixelBuffer );
280 DALI_LOG_WARNING( "Unable to convert %s\n", path.c_str() );
284 pixelBuffer = Internal::Platform::ApplyAttributesToBitmap( pixelBuffer, resource.size, resource.scalingMode, resource.samplingMode );
288 DALI_LOG_WARNING( "Image Decoder for %s unavailable\n", path.c_str() );
295 ResourcePointer LoadImageSynchronously( const Integration::BitmapResourceType& resource, const std::string& path )
297 ResourcePointer result;
298 Dali::Devel::PixelBuffer bitmap;
300 Internal::Platform::FileReader fileReader( path );
301 FILE * const fp = fileReader.GetFile();
304 bool success = ConvertStreamToBitmap(resource, path, fp, bitmap);
305 if (success && bitmap)
307 Bitmap::Profile profile{Bitmap::Profile::BITMAP_2D_PACKED_PIXELS};
309 // For backward compatibility the Bitmap must be created
310 auto retval = Bitmap::New(profile, Dali::ResourcePolicy::OWNED_DISCARD);
312 DALI_LOG_SET_OBJECT_STRING( retval, path );
314 retval->GetPackedPixelsProfile()->ReserveBuffer(
315 bitmap.GetPixelFormat(),
322 auto& impl = Dali::GetImplementation(bitmap);
324 std::copy( impl.GetBuffer(), impl.GetBuffer()+impl.GetBufferSize(), retval->GetBuffer());
325 result.Reset(retval);
331 ///@ToDo: Rename GetClosestImageSize() functions. Make them use the orientation correction and scaling information. Requires jpeg loader to tell us about reorientation. [Is there still a requirement for this functionality at all?]
332 ImageDimensions GetClosestImageSize( const std::string& filename,
333 ImageDimensions size,
334 FittingMode::Type fittingMode,
335 SamplingMode::Type samplingMode,
336 bool orientationCorrection )
338 unsigned int width = 0;
339 unsigned int height = 0;
341 Internal::Platform::FileReader fileReader( filename );
342 FILE *fp = fileReader.GetFile();
345 Dali::ImageLoader::LoadBitmapFunction loaderFunction;
346 Dali::ImageLoader::LoadBitmapHeaderFunction headerFunction;
347 Bitmap::Profile profile;
349 if ( GetBitmapLoaderFunctions( fp,
350 GetFormatHint(filename),
356 const Dali::ImageLoader::Input input( fp, Dali::ImageLoader::ScalingParameters( size, fittingMode, samplingMode ), orientationCorrection );
358 const bool read_res = headerFunction( input, width, height );
361 DALI_LOG_WARNING("Image Decoder failed to read header for %s\n", filename.c_str());
366 DALI_LOG_WARNING("Image Decoder for %s unavailable\n", filename.c_str());
369 return ImageDimensions( width, height );
372 ImageDimensions GetClosestImageSize( Integration::ResourcePointer resourceBuffer,
373 ImageDimensions size,
374 FittingMode::Type fittingMode,
375 SamplingMode::Type samplingMode,
376 bool orientationCorrection )
378 unsigned int width = 0;
379 unsigned int height = 0;
381 // Get the blob of binary data that we need to decode:
382 DALI_ASSERT_DEBUG( resourceBuffer );
383 Dali::RefCountedVector<uint8_t>* const encodedBlob = reinterpret_cast<Dali::RefCountedVector<uint8_t>*>( resourceBuffer.Get() );
385 if( encodedBlob != 0 )
387 if( encodedBlob->GetVector().Size() )
389 // Open a file handle on the memory buffer:
390 Internal::Platform::FileReader fileReader( encodedBlob->GetVector() );
391 FILE *fp = fileReader.GetFile();
394 Dali::ImageLoader::LoadBitmapFunction loaderFunction;
395 Dali::ImageLoader::LoadBitmapHeaderFunction headerFunction;
396 Bitmap::Profile profile;
398 if ( GetBitmapLoaderFunctions( fp,
405 const Dali::ImageLoader::Input input( fp, Dali::ImageLoader::ScalingParameters( size, fittingMode, samplingMode ), orientationCorrection );
406 const bool read_res = headerFunction( input, width, height );
409 DALI_LOG_WARNING( "Image Decoder failed to read header for resourceBuffer\n" );
415 return ImageDimensions( width, height );
418 void SetMaxTextureSize( unsigned int size )
420 gMaxTextureSize = size;
423 unsigned int GetMaxTextureSize()
425 return gMaxTextureSize;