SpringMapConvNG/Image.cpp at master · Opensoftware/SpringMapConvNG · GitHub

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/*
 <one line to give the program's name and a brief idea of what it does.>
 Copyright (C) 2011 Tiziano <tizbac2@gmail.com>

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
*/


#include"Image.h"

CannotLoadImageException::CannotLoadImageException(std::string path) : runtime_error(path)
{

}

Image::Image()
{
ilGenImages(1,&image);


}
voidImage::GetRect(int x, int y, int w, int h,ILenum format, void * dest)
{
ilBindImage(image);
ilCopyPixels(x,y,0,w,h,1,format,IL_UNSIGNED_BYTE,dest);
}
voidImage::GetRect(int x, int y, int w, int h, ILenum format, ILenum type, void* dest)
{
ilBindImage(image);
ilCopyPixels(x,y,0,w,h,1,format,type,dest);
}
voidImage::FlipVertical()
{
ilBindImage(image);
iluFlipImage();
}

Image::Image(constchar* filename, bool hdrlum )
{

ilGenImages(1,&image);
ilBindImage(image);
if ( ! ilLoadImage(filename) )
 {
throwCannotLoadImageException(std::string(filename));

 }
if (!hdrlum)
 {
ConvertToRGBA();
 }elseif ( ilGetInteger( IL_IMAGE_BYTES_PER_PIXEL ) != 2 || ilGetInteger(IL_IMAGE_FORMAT) != IL_LUMINANCE ) {
ConvertToLUMHDR();
 }
 w = ilGetInteger(IL_IMAGE_WIDTH);
 h = ilGetInteger(IL_IMAGE_HEIGHT);
 d = ilGetInteger(IL_IMAGE_DEPTH);
 datapointer = ilGetData();

}
voidImage::Save(constchar* filename)
{
ilBindImage(image);
ilSaveImage(filename);
}
voidImage::AllocateLUM(int x, int y, char* data)
{
ilBindImage(image);
ilTexImage(x,y,1,1,IL_LUMINANCE,IL_UNSIGNED_BYTE,data);
 datapointer = ilGetData();
 w = ilGetInteger(IL_IMAGE_WIDTH);
 h = ilGetInteger(IL_IMAGE_HEIGHT);
 d = ilGetInteger(IL_IMAGE_DEPTH);
}

voidImage::AllocateRGBA(int x, int y, char* data)
{
ilBindImage(image);
ilTexImage(x,y,1,4,IL_RGBA,IL_UNSIGNED_BYTE,data);
 datapointer = ilGetData();
 w = ilGetInteger(IL_IMAGE_WIDTH);
 h = ilGetInteger(IL_IMAGE_HEIGHT);
 d = ilGetInteger(IL_IMAGE_DEPTH);
}
voidImage::Rescale(int x, int y)
{
ilBindImage(image);
iluScale(x,y,1);
 datapointer = ilGetData();
 w = ilGetInteger(IL_IMAGE_WIDTH);
 h = ilGetInteger(IL_IMAGE_HEIGHT);
 d = ilGetInteger(IL_IMAGE_DEPTH);
}

voidImage::GetPixelRGBA(int x_, int y_, unsignedchar* pix)
{

int x = x_ % w;
int y = h -(y_ % h);

if ( datapointer )
 {
 pix[0] = datapointer[w*y*4+x*4];
 pix[1] = datapointer[w*y*4+x*4+1];
 pix[2] = datapointer[w*y*4+x*4+2];
	pix[3] = datapointer[w*y*4+x*4+3];
 } else {
printf("GetPixelRGBA(%i,%i): datapointer is NULL\n",x_,y_);
 }
//printf("%i %i %i\n",(int)pix[0],(int)pix[1],int(pix[2]));
}


voidImage::SetPixelRGBA(int x_, int y_, char r, char g, char b, char a)
{
int x = (x_ % w);
int y = h - (y_ % h) - 1;
 datapointer[w*y*3+x*3] = r;
 datapointer[w*y*3+x*3+1] = g;
 datapointer[w*y*3+x*3+2] = b;
 datapointer[w*y*4+x*4+3] = a;

}

voidImage::SetPixelLUM(int x_, int y_, char val)
{
int x = x_ % w;
int y = y_ % h;
 datapointer[y*w+x] = val;


}
voidImage::GetPixelLUM(int x_, int y_, unsignedchar* p)
{
//printf("GetPixelLUM(%i,%i)\n",x_,y_);
int x = x_ % w;
int y = y_ % h;
 p[0] = datapointer[y*w+x];

}
voidImage::ConvertToLUM()
{
ilBindImage(image);
ilConvertImage(IL_LUMINANCE,IL_UNSIGNED_BYTE);
 datapointer = ilGetData();

}
voidImage::ConvertToLUMHDR()
{
ilBindImage(image);
ilConvertImage(IL_LUMINANCE,IL_UNSIGNED_SHORT);
 datapointer = ilGetData();
}

voidImage::ConvertToRGBA()
{
ilBindImage(image);
ilConvertImage(IL_RGBA,IL_UNSIGNED_BYTE);
 datapointer = ilGetData();
}
Image::~Image()
{
ilDeleteImages(1,&image);
}