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/*
* UCIMF - Unicode Console InputMethod Framework
*
* Copyright (c) 2006-2007 Chun-Yu Lee (Mat) and Open RazzmatazZ Laboratory (OrzLab)
*
* 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
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <assert.h>
#include <stdlib.h>
#include "fbdev.h"
#include "vgadev.h"
#include "font.h"
// mmap framebuffer address
GraphDev *GraphDev::mpGraphDev = NULL;
int GraphDev::mXres = 0;
int GraphDev::mYres = 0;
bool GraphDev::Open() {
//first try fbdev
OPEN_RC rc = FBDev::TryOpen();
switch (rc) {
case NORMAL:
return true;
case UNSUPPORT:
case FAILURE:
#if defined(linux)
#ifdef USING_VGA
if (VGADev::TryOpen())
return true;
break;
#endif
#endif
default: // vga fail
return false;
}
return false;
}
bool GraphDev::Open(int xres, int yres, int depth) {
return FBDev::TryOpen(xres, yres, depth);
}
void GraphDev::Close() {
if (mpGraphDev)
mpGraphDev->ClearScr();
delete mpGraphDev;
}
void GraphDev::ClearScr() {
FillRect(0, 0, Width() - 1, Height() - 1, 0);
}
void GraphDev::DrawLine(int x1,int y1,int x2,int y2,int color) {
assert( x1 >= 0 && x1 < Width() && y1 >=0 && y1 < Height());
assert( x2 >= 0 && x2 < Width() && y2 >=0 && y2 < Height());
int dx = x2 - x1;
int dy = y2 - y1;
int ax = abs(dx) << 1;
int ay = abs(dy) << 1;
int sx = (dx >= 0) ? 1 : -1;
int sy = (dy >= 0) ? 1 : -1;
int x = x1;
int y = y1;
if (ax > ay) {
int d = ay - (ax >> 1);
while (x != x2) {
PutPixel(x, y,color);
if ((d > 0) || ((d == 0) && (sx == 1))) {
y += sy;
d -= ax;
}
x += sx;
d += ay;
}
} else {
int d = ax - (ay >> 1);
while (y != y2) {
PutPixel(x, y,color);
if ((d > 0) || ((d == 0) && (sy == 1))) {
x += sx;
d -= ay;
}
y += sy;
d += ax;
}
}
PutPixel(x, y,color);
}
void GraphDev::DrawRect(int x1,int y1,int x2,int y2,int color) {
assert( x1 >= 0 && x1 < Width() && y1 >=0 && y1 < Height());
assert( x2 >= 0 && x2 < Width() && y2 >=0 && y2 < Height());
DrawLine(x1,y1,x2,y1,color);
DrawLine(x1,y1,x1,y2,color);
DrawLine(x1,y2,x2,y2,color);
DrawLine(x2,y1,x2,y2,color);
}
int GraphDev::OutChar(int x, int y, int fg, int bg, unsigned int c) {
Font* font = Font::instance();
assert( x >= 0 && x + font->width() <= Width()
&& y >=0 && y + font->height() <= Height());
// CharBitMap tmpFont;
// font->render(c, tmpFont);
Font::Glyph *glyph = font->getGlyph( c );
if( !glyph ){
return x + font->width();
}
int font_height = glyph->height;
//int font_width = glyph->width;
int font_width = glyph->pitch;
int left = glyph->left;
int top = glyph->top;
int xi, yi;
for ( yi = 0; yi < font_height; yi++)
{
for ( xi = 0; xi < font_width; xi++ )
{
if ( glyph->pixmap[ (yi*font_width) + xi ] ){
PutPixel( x+xi, (y+top)+yi, fg);
}
}
}
int delta = font_width > font->width()/2 ? font_width : font->width()/2 ;
return x+delta+left;
}
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