dali/devel-api/adaptor-framework/image-loading.cpp

   1 /*
   2  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   3  *
   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
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  */
  16
  17 // CLASS HEADER
  18 #include <dali/devel-api/adaptor-framework/image-loading.h>
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/devel-api/adaptor-framework/pixel-buffer.h>
  22 #include <dali/internal/imaging/common/file-download.h>
  23 #include <dali/internal/imaging/common/image-loader.h>
  24 #include <dali/internal/system/common/file-reader.h>
  25 #include <dali/public-api/object/property-map.h>
  26
  27 namespace Dali
  28 {
  29 namespace
  30 {
  31 // limit maximum image down load size to 50 MB
  32 const size_t MAXIMUM_DOWNLOAD_IMAGE_SIZE = 50 * 1024 * 1024;
  33
  34 } // namespace
  35
  36 Devel::PixelBuffer LoadImageFromFile(const std::string& url, ImageDimensions size, FittingMode::Type fittingMode, SamplingMode::Type samplingMode, bool orientationCorrection)
  37 {
  38   Integration::BitmapResourceType resourceType(size, fittingMode, samplingMode, orientationCorrection);
  39
  40   Internal::Platform::FileReader fileReader(url);
  41   FILE* const                    fp = fileReader.GetFile();
  42   if(fp != NULL)
  43   {
  44     Dali::Devel::PixelBuffer bitmap;
  45     bool                     success = TizenPlatform::ImageLoader::ConvertStreamToBitmap(resourceType, url, fp, bitmap);
  46     if(success && bitmap)
  47     {
  48       return bitmap;
  49     }
  50   }
  51   return Dali::Devel::PixelBuffer();
  52 }
  53
  54 void LoadImagePlanesFromFile(const std::string& url, std::vector<Devel::PixelBuffer>& buffers, ImageDimensions size, FittingMode::Type fittingMode, SamplingMode::Type samplingMode, bool orientationCorrection)
  55 {
  56   Integration::BitmapResourceType resourceType(size, fittingMode, samplingMode, orientationCorrection);
  57
  58   Internal::Platform::FileReader fileReader(url);
  59   FILE* const                    fp = fileReader.GetFile();
  60   if(fp != NULL)
  61   {
  62     TizenPlatform::ImageLoader::ConvertStreamToPlanes(resourceType, url, fp, buffers);
  63   }
  64 }
  65
  66 Devel::PixelBuffer LoadImageFromBuffer(const Dali::Vector<uint8_t>& buffer, ImageDimensions size, FittingMode::Type fittingMode, SamplingMode::Type samplingMode, bool orientationCorrection)
  67 {
  68   if(buffer.Empty())
  69   {
  70     DALI_LOG_ERROR("buffer is empty!\n");
  71     return Dali::Devel::PixelBuffer();
  72   }
  73   Integration::BitmapResourceType resourceType(size, fittingMode, samplingMode, orientationCorrection);
  74
  75   Internal::Platform::FileReader fileReader(buffer);
  76   FILE* const                    fp = fileReader.GetFile();
  77   if(fp != NULL)
  78   {
  79     Dali::Devel::PixelBuffer bitmap;
  80     // Make path as empty string. Path information just for file format hint.
  81     bool success = TizenPlatform::ImageLoader::ConvertStreamToBitmap(resourceType, std::string(""), fp, bitmap);
  82     if(success && bitmap)
  83     {
  84       return bitmap;
  85     }
  86   }
  87   return Dali::Devel::PixelBuffer();
  88 }
  89
  90 ImageDimensions GetClosestImageSize(const std::string& filename,
  91                                     ImageDimensions    size,
  92                                     FittingMode::Type  fittingMode,
  93                                     SamplingMode::Type samplingMode,
  94                                     bool               orientationCorrection)
  95 {
  96   ImageDimensions dimension = TizenPlatform::ImageLoader::GetClosestImageSize(filename, size, fittingMode, samplingMode, orientationCorrection);
  97
  98   dimension.SetWidth(std::min(dimension.GetWidth(), static_cast<uint16_t>(GetMaxTextureSize())));
  99   dimension.SetHeight(std::min(dimension.GetHeight(), static_cast<uint16_t>(GetMaxTextureSize())));
 100
 101   return dimension;
 102 }
 103
 104 ImageDimensions GetOriginalImageSize(const std::string& filename, bool orientationCorrection)
 105 {
 106   return TizenPlatform::ImageLoader::GetClosestImageSize(filename, ImageDimensions(0, 0), FittingMode::DEFAULT, SamplingMode::BOX_THEN_LINEAR, orientationCorrection);
 107 }
 108
 109 Devel::PixelBuffer DownloadImageSynchronously(const std::string& url, ImageDimensions size, FittingMode::Type fittingMode, SamplingMode::Type samplingMode, bool orientationCorrection)
 110 {
 111   Integration::BitmapResourceType resourceType(size, fittingMode, samplingMode, orientationCorrection);
 112
 113   bool                  succeeded;
 114   Dali::Vector<uint8_t> dataBuffer;
 115   size_t                dataSize;
 116
 117   succeeded = TizenPlatform::Network::DownloadRemoteFileIntoMemory(url, dataBuffer, dataSize, MAXIMUM_DOWNLOAD_IMAGE_SIZE);
 118   if(succeeded)
 119   {
 120     size_t blobSize = dataBuffer.Size();
 121
 122     DALI_ASSERT_DEBUG(blobSize > 0U);
 123
 124     if(blobSize > 0U)
 125     {
 126       // Open a file handle on the memory buffer:
 127       Dali::Internal::Platform::FileReader fileReader(dataBuffer, blobSize);
 128       FILE* const                          fp = fileReader.GetFile();
 129       if(NULL != fp)
 130       {
 131         Dali::Devel::PixelBuffer bitmap;
 132         bool                     result = TizenPlatform::ImageLoader::ConvertStreamToBitmap(
 133           resourceType,
 134           url,
 135           fp,
 136           bitmap);
 137
 138         if(result && bitmap)
 139         {
 140           return bitmap;
 141         }
 142         else
 143         {
 144           DALI_LOG_WARNING("Unable to decode bitmap supplied as in-memory blob.\n");
 145         }
 146       }
 147     }
 148   }
 149   return Dali::Devel::PixelBuffer();
 150 }
 151
 152 unsigned int GetMaxTextureSize()
 153 {
 154   return TizenPlatform::ImageLoader::GetMaxTextureSize();
 155 }
 156
 157 } // namespace Dali