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/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2004 Dmitry Baryshev <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation;
either version 2 of the License, or (at your option) any later
version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <string.h>
#include "ksquirrel-libs/fmt_utils.h"
#include "ksquirrel-libs/fmt_defs.h"
#include <sstream>
void fmt_utils::fillAlpha(RGBA *scan, int w, u8 value)
{
if(scan)
{
for(int i = 0;i < w;i++)
(scan + i)->a = value;
}
}
void fmt_utils::flipv(s8 *image, s32 bytes_w, s32 h)
{
s32 i;
if(!image)
return;
s8 *hptr = new s8 [bytes_w];
if(!hptr)
return;
for(i = 0; i < h/2; i++)
{
memcpy(hptr, image + i * bytes_w, bytes_w);
memcpy(image + i * bytes_w, image + (h - i - 1) * bytes_w, bytes_w);
memcpy(image + (h - i - 1) * bytes_w, hptr, bytes_w);
}
delete hptr;
}
void fmt_utils::fliph(s8 *image, s32 w, s32 h, s32 bpp)
{
s32 x, y, x2;
s32 bpl = w * bpp;
s8 a[bpp], *t;
if(!image)
return;
for(y = 0;y < h;y++)
{
for(x = 0, x2 = w-1;x < w/2;x++,x2--)
{
t = image + y*bpl;
memcpy(a, t + x2*bpp, bpp);
memcpy(t + x2*bpp, t + x*bpp, bpp);
memcpy(t + x*bpp, a, bpp);
}
}
}
u16 fmt_utils::konvertWord(u16 a)
{
u16 i = a, b;
b = i & 255;
b = b << 8;
b = b|0;
i = i >> 8;
i = i|0;
return i|b;
}
u32 fmt_utils::konvertLong(u32 a)
{
u32 i = a, b, c;
u16 m, n;
b = i >> 16; // high word
c = i << 16;
c = c >> 16; // low word
m = (u16)b;
n = (u16)c;
m = fmt_utils::konvertWord(m);
n = fmt_utils::konvertWord(n);
b = m;
c = n;
c = c << 16;
b = b|0;
c = c|0;
return b|c;
}
std::string fmt_utils::colorSpaceByBpp(const int bpp)
{
switch(bpp)
{
case 1:
return std::string("Monochrome");
case 4:
case 8:
case 15:
case 16:
return std::string("Color indexed");
case 24:
return std::string("RGB");
case 32:
return std::string("RGBA");
default:
return std::string("Unknown");
}
}
void fmt_utils::expandMono1Byte(const u32 byte, u8 *array)
{
u8 mask = 0x80;
u8 *p = array;
u8 b = byte & 0xff;
for(s32 i = 0;i < 8;i++)
{
*p = (b & mask) ? 1 : 0;
p++;
mask >>= 1;
}
}
void fmt_utils::expandMono2Byte(const u32 byte, u8 *array)
{
u16 mask = 0x8000;
u8 *p = array;
u16 b = byte & 0xffff;
for(s32 i = 0;i < 16;i++)
{
*p = (b & mask) ? 1 : 0;
p++;
mask >>= 1;
}
}
void fmt_utils::expandMono4Byte(const u32 byte, u8 *array)
{
u32 mask = 0x80000000;
u8 *p = array;
u32 b = byte & 0xffffffff;
for(s32 i = 0;i < 32;i++)
{
*p = (b & mask) ? 1 : 0;
p++;
mask >>= 1;
}
}
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