2 * Copyright (c) 2021 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/devel-api/adaptor-framework/image-loader-input.h>
23 #include <dali/internal/imaging/common/image-loader-plugin-proxy.h>
24 #include <dali/internal/imaging/common/image-operations.h>
25 #include <dali/internal/imaging/common/loader-astc.h>
26 #include <dali/internal/imaging/common/loader-bmp.h>
27 #include <dali/internal/imaging/common/loader-gif.h>
28 #include <dali/internal/imaging/common/loader-ico.h>
29 #include <dali/internal/imaging/common/loader-jpeg.h>
30 #include <dali/internal/imaging/common/loader-ktx.h>
31 #include <dali/internal/imaging/common/loader-png.h>
32 #include <dali/internal/imaging/common/loader-wbmp.h>
33 #include <dali/internal/system/common/file-reader.h>
35 using namespace Dali::Integration;
39 namespace TizenPlatform
43 #if defined(DEBUG_ENABLED)
44 Integration::Log::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, false, "LOG_IMAGE_LOADING");
47 static unsigned int gMaxTextureSize = 4096;
49 static bool gMaxTextureSizeUpdated = false;
52 * Enum for file formats, has to be in sync with BITMAP_LOADER_LOOKUP_TABLE
56 // Unknown file format
59 // formats that use magic bytes
67 FORMAT_MAGIC_BYTE_COUNT,
69 // formats after this one do not use magic bytes
70 FORMAT_WBMP = FORMAT_MAGIC_BYTE_COUNT,
75 * A lookup table containing all the bitmap loaders with the appropriate information.
76 * Has to be in sync with enum FileFormats
79 const Dali::ImageLoader::BitmapLoader BITMAP_LOADER_LOOKUP_TABLE[FORMAT_TOTAL_COUNT] =
81 {Png::MAGIC_BYTE_1, Png::MAGIC_BYTE_2, LoadBitmapFromPng, LoadPngHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
82 {Jpeg::MAGIC_BYTE_1, Jpeg::MAGIC_BYTE_2, LoadBitmapFromJpeg, LoadJpegHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
83 {Bmp::MAGIC_BYTE_1, Bmp::MAGIC_BYTE_2, LoadBitmapFromBmp, LoadBmpHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
84 {Gif::MAGIC_BYTE_1, Gif::MAGIC_BYTE_2, LoadBitmapFromGif, LoadGifHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
85 {Ktx::MAGIC_BYTE_1, Ktx::MAGIC_BYTE_2, LoadBitmapFromKtx, LoadKtxHeader, Bitmap::BITMAP_COMPRESSED },
86 {Astc::MAGIC_BYTE_1, Astc::MAGIC_BYTE_2, LoadBitmapFromAstc, LoadAstcHeader, Bitmap::BITMAP_COMPRESSED },
87 {Ico::MAGIC_BYTE_1, Ico::MAGIC_BYTE_2, LoadBitmapFromIco, LoadIcoHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
88 {0x0, 0x0, LoadBitmapFromWbmp, LoadWbmpHeader, Bitmap::BITMAP_2D_PACKED_PIXELS},
92 const unsigned int MAGIC_LENGTH = 2;
95 * This code tries to predict the file format from the filename to help with format picking.
97 struct FormatExtension
99 const std::string extension;
104 const FormatExtension FORMAT_EXTENSIONS[] =
106 {".png", FORMAT_PNG },
107 {".jpg", FORMAT_JPEG},
108 {".bmp", FORMAT_BMP },
109 {".gif", FORMAT_GIF },
110 {".ktx", FORMAT_KTX },
111 {".astc", FORMAT_ASTC},
112 {".ico", FORMAT_ICO },
113 {".wbmp", FORMAT_WBMP}
117 const unsigned int FORMAT_EXTENSIONS_COUNT = sizeof(FORMAT_EXTENSIONS) / sizeof(FormatExtension);
119 FileFormats GetFormatHint(const std::string& filename)
121 FileFormats format = FORMAT_UNKNOWN;
123 for(unsigned int i = 0; i < FORMAT_EXTENSIONS_COUNT; ++i)
125 unsigned int length = FORMAT_EXTENSIONS[i].extension.size();
126 if((filename.size() > length) &&
127 (0 == filename.compare(filename.size() - length, length, FORMAT_EXTENSIONS[i].extension)))
129 format = FORMAT_EXTENSIONS[i].format;
138 * Checks the magic bytes of the file first to determine which Image decoder to use to decode the
140 * @param[in] fp The file to decode
141 * @param[in] format Hint about what format to try first
142 * @param[out] loader Set with the function to use to decode the image
143 * @param[out] header Set with the function to use to decode the header
144 * @param[out] profile The kind of bitmap to hold the bits loaded for the bitmap.
145 * @return true, if we can decode the image, false otherwise
147 bool GetBitmapLoaderFunctions(FILE* fp,
149 Dali::ImageLoader::LoadBitmapFunction& loader,
150 Dali::ImageLoader::LoadBitmapHeaderFunction& header,
151 Bitmap::Profile& profile,
152 const std::string& filename)
154 unsigned char magic[MAGIC_LENGTH];
155 size_t read = fread(magic, sizeof(unsigned char), MAGIC_LENGTH, fp);
157 // Reset to the start of the file.
158 if(fseek(fp, 0, SEEK_SET))
160 DALI_LOG_ERROR("Error seeking to start of file\n");
163 if(read != MAGIC_LENGTH)
168 bool loaderFound = false;
169 const Dali::ImageLoader::BitmapLoader* lookupPtr = BITMAP_LOADER_LOOKUP_TABLE;
170 Dali::ImageLoader::Input defaultInput(fp);
172 // try plugin image loader
173 const Dali::ImageLoader::BitmapLoader* data = Internal::Adaptor::ImageLoaderPluginProxy::BitmapLoaderLookup(filename);
177 unsigned int width = 0;
178 unsigned int height = 0;
179 loaderFound = lookupPtr->header(fp, width, height);
183 if(false == loaderFound && format != FORMAT_UNKNOWN)
185 lookupPtr = BITMAP_LOADER_LOOKUP_TABLE + format;
186 if(format >= FORMAT_MAGIC_BYTE_COUNT ||
187 (lookupPtr->magicByte1 == magic[0] && lookupPtr->magicByte2 == magic[1]))
189 unsigned int width = 0;
190 unsigned int height = 0;
191 loaderFound = lookupPtr->header(fp, width, height);
195 // then try to get a match with formats that have magic bytes
196 if(false == loaderFound)
198 for(lookupPtr = BITMAP_LOADER_LOOKUP_TABLE;
199 lookupPtr < BITMAP_LOADER_LOOKUP_TABLE + FORMAT_MAGIC_BYTE_COUNT;
202 if(lookupPtr->magicByte1 == magic[0] && lookupPtr->magicByte2 == magic[1])
204 // to seperate ico file format and wbmp file format
205 unsigned int width = 0;
206 unsigned int height = 0;
207 loaderFound = lookupPtr->header(fp, width, height);
216 // finally try formats that do not use magic bytes
217 if(false == loaderFound)
219 for(lookupPtr = BITMAP_LOADER_LOOKUP_TABLE + FORMAT_MAGIC_BYTE_COUNT;
220 lookupPtr < BITMAP_LOADER_LOOKUP_TABLE + FORMAT_TOTAL_COUNT;
223 // to seperate ico file format and wbmp file format
224 unsigned int width = 0;
225 unsigned int height = 0;
226 loaderFound = lookupPtr->header(fp, width, height);
234 // if a loader was found set the outputs
237 loader = lookupPtr->loader;
238 header = lookupPtr->header;
239 profile = lookupPtr->profile;
242 // Reset to the start of the file.
243 if(fseek(fp, 0, SEEK_SET))
245 DALI_LOG_ERROR("Error seeking to start of file\n");
251 } // anonymous namespace
253 namespace ImageLoader
255 bool ConvertStreamToBitmap(const BitmapResourceType& resource, std::string path, FILE* const fp, Dali::Devel::PixelBuffer& pixelBuffer)
257 DALI_LOG_TRACE_METHOD(gLogFilter);
263 Dali::ImageLoader::LoadBitmapFunction function;
264 Dali::ImageLoader::LoadBitmapHeaderFunction header;
266 Bitmap::Profile profile;
268 if(GetBitmapLoaderFunctions(fp,
275 const Dali::ImageLoader::ScalingParameters scalingParameters(resource.size, resource.scalingMode, resource.samplingMode);
276 const Dali::ImageLoader::Input input(fp, scalingParameters, resource.orientationCorrection);
278 // Run the image type decoder:
279 result = function(input, pixelBuffer);
283 DALI_LOG_ERROR("Unable to convert %s\n", path.c_str());
287 pixelBuffer = Internal::Platform::ApplyAttributesToBitmap(pixelBuffer, resource.size, resource.scalingMode, resource.samplingMode);
291 DALI_LOG_ERROR("Image Decoder for %s unavailable\n", path.c_str());
298 ResourcePointer LoadImageSynchronously(const Integration::BitmapResourceType& resource, const std::string& path)
300 ResourcePointer result;
301 Dali::Devel::PixelBuffer bitmap;
303 Internal::Platform::FileReader fileReader(path);
304 FILE* const fp = fileReader.GetFile();
307 bool success = ConvertStreamToBitmap(resource, path, fp, bitmap);
308 if(success && bitmap)
310 Bitmap::Profile profile{Bitmap::Profile::BITMAP_2D_PACKED_PIXELS};
312 // For backward compatibility the Bitmap must be created
313 auto retval = Bitmap::New(profile, Dali::ResourcePolicy::OWNED_DISCARD);
315 DALI_LOG_SET_OBJECT_STRING(retval, path);
317 retval->GetPackedPixelsProfile()->ReserveBuffer(
318 bitmap.GetPixelFormat(),
324 auto& impl = Dali::GetImplementation(bitmap);
326 std::copy(impl.GetBuffer(), impl.GetBuffer() + impl.GetBufferSize(), retval->GetBuffer());
327 result.Reset(retval);
333 ///@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?]
334 ImageDimensions GetClosestImageSize(const std::string& filename,
335 ImageDimensions size,
336 FittingMode::Type fittingMode,
337 SamplingMode::Type samplingMode,
338 bool orientationCorrection)
340 unsigned int width = 0;
341 unsigned int height = 0;
343 Internal::Platform::FileReader fileReader(filename);
344 FILE* fp = fileReader.GetFile();
347 Dali::ImageLoader::LoadBitmapFunction loaderFunction;
348 Dali::ImageLoader::LoadBitmapHeaderFunction headerFunction;
349 Bitmap::Profile profile;
351 if(GetBitmapLoaderFunctions(fp,
352 GetFormatHint(filename),
358 const Dali::ImageLoader::Input input(fp, Dali::ImageLoader::ScalingParameters(size, fittingMode, samplingMode), orientationCorrection);
360 const bool read_res = headerFunction(input, width, height);
363 DALI_LOG_ERROR("Image Decoder failed to read header for %s\n", filename.c_str());
368 DALI_LOG_ERROR("Image Decoder for %s unavailable\n", filename.c_str());
371 return ImageDimensions(width, height);
374 ImageDimensions GetClosestImageSize(Integration::ResourcePointer resourceBuffer,
375 ImageDimensions size,
376 FittingMode::Type fittingMode,
377 SamplingMode::Type samplingMode,
378 bool orientationCorrection)
380 unsigned int width = 0;
381 unsigned int height = 0;
383 // Get the blob of binary data that we need to decode:
384 DALI_ASSERT_DEBUG(resourceBuffer);
385 Dali::RefCountedVector<uint8_t>* const encodedBlob = reinterpret_cast<Dali::RefCountedVector<uint8_t>*>(resourceBuffer.Get());
389 if(encodedBlob->GetVector().Size())
391 // Open a file handle on the memory buffer:
392 Internal::Platform::FileReader fileReader(encodedBlob->GetVector());
393 FILE* fp = fileReader.GetFile();
396 Dali::ImageLoader::LoadBitmapFunction loaderFunction;
397 Dali::ImageLoader::LoadBitmapHeaderFunction headerFunction;
398 Bitmap::Profile profile;
400 if(GetBitmapLoaderFunctions(fp,
407 const Dali::ImageLoader::Input input(fp, Dali::ImageLoader::ScalingParameters(size, fittingMode, samplingMode), orientationCorrection);
408 const bool read_res = headerFunction(input, width, height);
411 DALI_LOG_ERROR("Image Decoder failed to read header for resourceBuffer\n");
417 return ImageDimensions(width, height);
420 void SetMaxTextureSize(unsigned int size)
422 gMaxTextureSize = size;
423 gMaxTextureSizeUpdated = true;
426 unsigned int GetMaxTextureSize()
428 return gMaxTextureSize;
431 bool MaxTextureSizeUpdated()
433 return gMaxTextureSizeUpdated;
436 } // namespace ImageLoader
437 } // namespace TizenPlatform