From: seungho baek <sbsh.baek@samsung.com>
Date: Tue, 17 Jan 2023 06:18:22 +0000 (+0900)
Subject: Support to load an image from uint8_t* encoded buffer.
X-Git-Tag: dali_2.2.12~3^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5de02e443f0c283fd7e6bf628a77a894d660f5d9;p=platform%2Fcore%2Fuifw%2Fdali-adaptor.git

Support to load an image from uint8_t* encoded buffer.

Change-Id: I0252773ef6c9ad62e552c05697cdd39507bd892e
Signed-off-by: seungho baek <sbsh.baek@samsung.com>
---

diff --git a/dali/devel-api/adaptor-framework/image-loading.cpp b/dali/devel-api/adaptor-framework/image-loading.cpp
index 794d8ad..a552b61 100644
--- a/dali/devel-api/adaptor-framework/image-loading.cpp
+++ b/dali/devel-api/adaptor-framework/image-loading.cpp
@@ -87,6 +87,30 @@ Devel::PixelBuffer LoadImageFromBuffer(const Dali::Vector<uint8_t>& buffer, Imag
   return Dali::Devel::PixelBuffer();
 }
 
+Devel::PixelBuffer LoadImageFromBuffer(uint8_t* buffer, size_t bufferSize, ImageDimensions size, FittingMode::Type fittingMode, SamplingMode::Type samplingMode, bool orientationCorrection)
+{
+  if(buffer == nullptr)
+  {
+    DALI_LOG_ERROR("buffer is empty!\n");
+    return Dali::Devel::PixelBuffer();
+  }
+  Integration::BitmapResourceType resourceType(size, fittingMode, samplingMode, orientationCorrection);
+
+  Internal::Platform::FileReader fileReader(buffer, bufferSize);
+  FILE* const                    fp = fileReader.GetFile();
+  if(fp != NULL)
+  {
+    Dali::Devel::PixelBuffer bitmap;
+    // Make path as empty string. Path information just for file format hint.
+    bool success = TizenPlatform::ImageLoader::ConvertStreamToBitmap(resourceType, std::string(""), fp, bitmap);
+    if(success && bitmap)
+    {
+      return bitmap;
+    }
+  }
+  return Dali::Devel::PixelBuffer();
+}
+
 ImageDimensions GetClosestImageSize(const std::string& filename,
                                     ImageDimensions    size,
                                     FittingMode::Type  fittingMode,
diff --git a/dali/devel-api/adaptor-framework/image-loading.h b/dali/devel-api/adaptor-framework/image-loading.h
index 53e07df..365b38d 100644
--- a/dali/devel-api/adaptor-framework/image-loading.h
+++ b/dali/devel-api/adaptor-framework/image-loading.h
@@ -88,6 +88,28 @@ DALI_ADAPTOR_API Devel::PixelBuffer LoadImageFromBuffer(
   bool                         orientationCorrection = true);
 
 /**
+ * @brief Load an image synchronously from encoded buffer.
+ *
+ * @note This method is thread safe, i.e. can be called from any thread.
+ *
+ * @param [in] buffer The encoded buffer of the image to load.
+ *                    The buffer is not owned by FileStream and must be valid for entire lifetime of FileStream
+ * @param [in] bufferSize Size of the encoded buffer.
+ * @param [in] size The width and height to fit the loaded image to, 0.0 means whole image
+ * @param [in] fittingMode The method used to fit the shape of the image before loading to the shape defined by the size parameter.
+ * @param [in] samplingMode The filtering method used when sampling pixels from the input image while fitting it to desired size.
+ * @param [in] orientationCorrection Reorient the image to respect any orientation metadata in its header.
+ * @return handle to the loaded PixelBuffer object or an empty handle in case loading failed.
+ */
+DALI_ADAPTOR_API Devel::PixelBuffer LoadImageFromBuffer(
+  uint8_t*           buffer,
+  size_t             bufferSize,
+  ImageDimensions    size                  = ImageDimensions(0, 0),
+  FittingMode::Type  fittingMode           = FittingMode::DEFAULT,
+  SamplingMode::Type samplingMode          = SamplingMode::BOX_THEN_LINEAR,
+  bool               orientationCorrection = true);
+
+/**
  * @brief Determine the size of an image that LoadImageFromFile will provide when
  * given the same image loading parameters.
  *