mirror of https://github.com/odrling/Aegisub
147 lines
3.4 KiB
C++
147 lines
3.4 KiB
C++
// 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;
|
|
}
|