Errcode vram_open_graphics(Vdevice *dev, VramRast *r,
LONG width, LONG height, USHORT mode)
{
Errcode err;
int vmode;
if (mode >= sizeof(vram_infos)/sizeof(vram_infos[0]))
return(Err_no_such_mode);
if (width != vram_infos[mode].width.actual ||
height != vram_infos[mode].height.actual )
return(Err_wrong_res);
if ((err = vram_detect(dev)) == Success)
{
vmode = mode_to_mode[mode];
ivmode = get_xmode();
set_xmode(vmode);
if (get_xmode() != vmode)
err = Err_no_vram;
else
{
build_ytable();
enable_ext();
open_raster(dev, mode, r, width, height, RASTER0);
vram_graphics_mode = mode;
}
}
return(err);
}
int insert_ytable(int y[][N],int row,int col,int key)
{
if(y[row-1][col-1] < INF) {
fprintf(stderr,"ytable is full y[%d][%d]:%d\n",row-1,col-1,y[row-1][col-1]);
print_table(y,N,N);
return -1;
}
y[row-1][col-1] = key;
return build_ytable(y,row-1,col-1,row,col);
}
static int build_ytable(int y[][N],int m,int n,int row,int col)
{
//printf("adjust key:y[%d][%d]:%d\n",m,n,y[m][n]);
if(m== 0 && n ==0)
return 0;
if(0 == n) {
if(y[m][n] < y[m-1][n])
{
__swap(&y[m][n],&y[m-1][n]);
build_ytable(y,m-1,n,row,col);
}
return 0;
}
if(0 == m) {
if(y[m][n] < y[m][n-1]) {
__swap(&y[m][n],&y[m][n-1]);
return build_ytable(y,m,n-1,row,col);
}
return 0;
}
if(y[m][n] < y[m-1][n]) {
__swap(&y[m][n],&y[m-1][n]);
build_ytable(y,m-1,n,row,col);
}
if(y[m][n] < y[m][n-1]) {
__swap(&y[m][n], &y[m][n-1]);
return build_ytable(y,m,n-1,row,col);
}
return 0;
}
