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/*
* Copyright � 2006-2016 SplinterGU (Fenix/Bennugd)
* Copyright � 2002-2006 Fenix Team (Fenix)
* Copyright � 1999-2002 Jos� Luis Cebri�n Pag�e (Fenix)
*
* This file is part of Bennu - Game Development
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
*/
/* By Splinter 2007 */
#include <assert.h>
#include <stdlib.h>
#include <string.h>
/* --------------------------------------------------------------------------- */
#include "librender.h"
/* --------------------------------------------------------------------------- */
void scanline2x( uint8_t *srcPtr, uint32_t srcPitch, uint8_t *dstPtr, uint32_t dstPitch, int width, int height )
{
const uint32_t nextlineSrc = srcPitch / sizeof( uint16_t );
const uint16_t *p = ( const uint16_t * )srcPtr;
const uint32_t nextlineDst = dstPitch / sizeof( uint16_t );
uint16_t *q = ( uint16_t * )dstPtr;
while ( height-- )
{
int tmpWidth = width;
while ( tmpWidth-- )
{
*q = *p;
*( q + nextlineDst ) = 0;
q++;
*q = *p;
*( q + nextlineDst ) = 0;
q++;
p++;
}
p += nextlineSrc - width;
q += ( nextlineDst - width ) * 2;
}
}
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