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