// Copyright (c) 2006, Rodrigo Braz Monteiro // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * Neither the name of the Aegisub Group nor the names of its contributors // may be used to endorse or promote products derived from this software // without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE. // // ----------------------------------------------------------------------------- // // AEGISUB // // Website: http://aegisub.cellosoft.com // Contact: mailto:zeratul@cellosoft.com // /////////// // Headers #include "png_wrap.h" #include "prs_image.h" #include "prs_video_frame.h" /////////////// // Constructor PRSImage::PRSImage() { id = -1; imageType = NULL_IMG; dataLen = 0; data = 0; } ////////////// // Destructor PRSImage::~PRSImage() { if (data) { delete [] data; data = 0; dataLen = 0; } } ////////////// // Write data void PRSImage::WriteData(std::vector<char> &vec) { // Set length unsigned __int32 size = 4 + 4 + 4 + dataLen; vec.resize(size+8); size_t pos = 0; // Write block identifier char str[] = "IMG"; memcpy(&vec[pos],str,4); pos += 4; // Write block length memcpy(&vec[pos],&size,4); pos += 4; // Write image identifier memcpy(&vec[pos],&id,4); pos += 4; // Write image format memcpy(&vec[pos],&imageType,4); pos += 4; // Write data length memcpy(&vec[pos],&dataLen,4); pos += 4; // Write data memcpy(&vec[pos],data,dataLen); pos += dataLen; } ///////////// // Read data void PRSImage::ReadData(std::vector<char> &vec) { // Set length size_t size = vec.size(); size_t pos = 0; // Read image identifier memcpy(&id,&vec[pos],4); pos += 4; // Read image format memcpy(&imageType,&vec[pos],4); pos += 4; // Read data length memcpy(&dataLen,&vec[pos],4); pos += 4; // Read data data = new char[dataLen]; memcpy(data,&vec[pos],dataLen); pos += dataLen; } //////////////// // Decode frame PRSVideoFrame *PRSImage::GetDecodedFrame() { // Create frame PRSVideoFrame *frame = new PRSVideoFrame; try { PNGWrapper png; png.SetData(data); png.Read(frame); } // Handle errors catch (...) { delete frame; return NULL; } // Return frame return frame; }