1 #ifndef __DALI_TIZEN_PLATFORM_LOADER_PNG_H__
2 #define __DALI_TIZEN_PLATFORM_LOADER_PNG_H__
5 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/common/dali-vector.h>
23 #include <dali/public-api/images/pixel.h>
24 #include <dali/internal/legacy/tizen/image-encoder.h>
25 #include <dali/internal/imaging/common/image-loader-input.h>
34 namespace TizenPlatform
37 class ResourceLoadingClient;
41 const unsigned char MAGIC_BYTE_1 = 0x89;
42 const unsigned char MAGIC_BYTE_2 = 0x50;
46 * Loads the bitmap from an PNG file. This function checks the header first
47 * and if it is not a PNG file, then it returns straight away.
48 * @param[in] input Information about the input image (including file pointer)
49 * @param[out] bitmap The bitmap class where the decoded image will be stored
50 * @return true if file decoded successfully, false otherwise
52 bool LoadBitmapFromPng( const ImageLoader::Input& input, Dali::Devel::PixelBuffer& bitmap );
55 * Loads the header of a PNG file and fills in the width and height appropriately.
56 * @param[in] fp Pointer to the Image file
57 * @param[in] attributes Describes the dimensions, pixel format and other details for loading the image data
58 * @param[out] width Is set with the width of the image
59 * @param[out] height Is set with the height of the image
60 * @return true if the file's header was read successully, false otherwise
62 bool LoadPngHeader( const ImageLoader::Input& input, unsigned int& width, unsigned int& height );
65 * Encode raw pixel data to PNG format.
66 * @param[in] pixelBuffer Pointer to raw pixel data to be encoded
67 * @param[out] encodedPixels Encoded pixel data. Existing contents will be overwritten
68 * @param[in] width Image width
69 * @param[in] height Image height
70 * @param[in] pixelFormat Input pixel format (must be Pixel::RGB888)
72 bool EncodeToPng( const unsigned char* pixelBuffer, Vector<unsigned char>& encodedPixels, std::size_t width, std::size_t height, Pixel::Format pixelFormat );
74 } // namespace TizenPlatform
78 #endif // __DALI_TIZEN_PLATFORM_LOADER_PNG_H__