NSBitmapImageRep.cpp

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/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 

This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  

Doom 3 Source Code 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.

Doom 3 Source Code 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/
#include "../../../idlib/precompiled.h"
#pragma hdrstop

#include "roq.h"

void R_LoadImage( const char *name, byte **pic, int *width, int *height, ID_TIME_T *timestamp, bool makePowerOf2 );

NSBitmapImageRep::NSBitmapImageRep( void ) {
        bmap = NULL;
        width = 0;
        height = 0;
        timestamp = 0;
}

NSBitmapImageRep::NSBitmapImageRep( const char *filename ) {

        R_LoadImage( filename, &bmap, &width, &height, &timestamp, false );
        if (!width || !height) {
                common->FatalError( "roqvq: unable to load image %s\n", filename );
        }
}

NSBitmapImageRep::NSBitmapImageRep( int wide, int high ) {
        bmap = (byte *)Mem_ClearedAlloc( wide * high * 4 );
        width = wide;
        height = high;
}

void R_StaticFree( void *data );

NSBitmapImageRep::~NSBitmapImageRep() {
        R_StaticFree( bmap );
        bmap = NULL;
}

int NSBitmapImageRep::samplesPerPixel( void ) {
        return 4;
}

int NSBitmapImageRep::pixelsWide( void ) {
        return width;
}

int NSBitmapImageRep::pixelsHigh( void ) {
        return height;
}

byte * NSBitmapImageRep::bitmapData( void ) {
        return bmap;
}

bool NSBitmapImageRep::hasAlpha( void ) {
        return false;
}

bool NSBitmapImageRep::isPlanar( void ) {
        return false;
}

NSBitmapImageRep &NSBitmapImageRep::operator=( const NSBitmapImageRep &a ) {

        // check for assignment to self
        if ( this == &a ) {
                return *this;
        }

        if (bmap) {
                Mem_Free(bmap);
        }
        bmap    = (byte *)Mem_Alloc( a.width * a.height * 4 );
        memcpy( bmap, a.bmap, a.width * a.height * 4 );
        width = a.width;
        height = a.height;
        timestamp = a.timestamp;

        return *this;
}