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/*
* UCIMF - Unicode Console InputMethod Framework
*
* Copyright (c) 2007 Chun-Yu Lee (Mat) and Open RazzmatazZ Laboratory (OrzLab)
*
* Parts taken from zhcon project.
* Copyright (c) 2001 ejoy <ejoy@users.sourceforge.net>
* huyong <ccpaging@online.sh.cn>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <assert.h>
#include "fblinear16.h"
#include <iostream>
using namespace std;
__u32 FBLinear16::tab_cfb16[] = {
0x00000000, 0xffff0000, 0x0000ffff, 0xffffffff
};
FBLinear16::FBLinear16() {
InitColorMap();
mNextLine = mNextLine ? mNextLine : mXres<<1;
}
void FBLinear16::InitColorMap() {
int i;
__u32 red, green, blue;
for(i = 0; i < 16; i++) {
red = red16[i];
green = green16[i];
blue = blue16[i];
cfb16[i] = ((red & 0xf800) ) |
((green & 0xfc00) >> 5) |
((blue & 0xf800) >> 11);
}
}
void FBLinear16::FillRect(int x1,int y1,int x2,int y2,int color) {
assert( x1 >= 0 && x1 < mXres && y1 >=0 && y1 < mYres);
assert( x2 >= 0 && x2 < mXres && y2 >=0 && y2 < mYres);
assert(x1 <= x2 && y1 <= y2);
__u8* dest = (__u8*)mpBuf + mNextLine * y1 + x1 * 2;
__u32* dest32;
__u32 fgx = cfb16[color];
fgx |= fgx<<16;
int height = y2 - y1 + 1;
int width = x2 - x1 + 1;
int cnt;
for(; height--; dest += mNextLine) {
dest32 = (__u32*)dest;
for (cnt = width/2; cnt--;) {
fb_writel(fgx, dest32++);
}
if (width & 1)
fb_writew(fgx, (__u16*)dest32);
}
}
void FBLinear16::RevRect(int x1,int y1,int x2,int y2) {
assert( x1 >= 0 && x1 < Width() && y1 >=0 && y1 < Height());
assert( x2 >= 0 && x2 < Width() && y2 >=0 && y2 < Height());
assert(x1 <= x2 && y1 <= y2);
__u8* dest = (__u8*)mpBuf + mNextLine * y1 + x1 * 2;
__u16* dest16;
__u32* dest32;
int height = y2 - y1 + 1;
int width = x2 - x1 + 1;
int cnt;
for(; height--; dest += mNextLine) {
dest32 = (__u32*)dest;
for (cnt = width/2; cnt--;) {
fb_writel(fb_readl(dest32) ^ 0xffffffff, dest32++);
}
if (width & 1) {
dest16 = (__u16*)dest32;
fb_writew(fb_readw(dest16) ^ 0xffff, dest16);
}
}
}
void FBLinear16::SaveRect(int x1,int y1,int x2,int y2, char** buffer) {
assert( x1 >= 0 && x1 < Width() && y1 >=0 && y1 < Height());
assert( x2 >= 0 && x2 < Width() && y2 >=0 && y2 < Height());
assert(x1 <= x2 && y1 <= y2);
int height = y2 - y1 + 1;
int width = x2 - x1 + 1;
int buffer_bytes = height * width * 2;
// allocate memory for saving
if( *buffer != NULL )
{
delete [] (*buffer);
*buffer = NULL;
}
*buffer = (char*) new char[buffer_bytes];
__u8* dest = (__u8*)mpBuf + mNextLine * y1 + x1 * 2;
__u16* buf = (__u16*)(*buffer);
for(; height--; dest += mNextLine) {
__u16* dest16 = (__u16*)dest;
for ( int cnt = width ; cnt--;) {
fb_writew( fb_readw(dest16++) , buf++ );
}
}
}
void FBLinear16::RstrRect(int x1,int y1,int x2,int y2, char** buffer) {
assert( x1 >= 0 && x1 < Width() && y1 >=0 && y1 < Height());
assert( x2 >= 0 && x2 < Width() && y2 >=0 && y2 < Height());
assert(x1 <= x2 && y1 <= y2);
assert ( *buffer != NULL );
__u16* buf = (__u16*)(*buffer);
__u8* dest = (__u8*)mpBuf + mNextLine * y1 + x1 * 2;
int height = y2 - y1 + 1;
int width = x2 - x1 + 1;
for(; height--; dest += mNextLine) {
__u16* dest16 = (__u16*)dest;
for ( int cnt = width ; cnt--;) {
fb_writew( fb_readw(buf++), dest16++ );
}
}
// release memory
delete [] (*buffer);
*buffer = NULL;
}
inline void FBLinear16::PutPixel(int x,int y,int color) {
assert( x >= 0 && x < mXres && y >=0 && y < mYres);
fb_writew(cfb16[color], mpBuf + mNextLine * y + x * 2);
}
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