Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/12398 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
		
			
				
	
	
		
			302 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			302 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Public Domain Curses */
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| 
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| #include "pdcsdl.h"
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| 
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| RCSID("$Id: pdcdisp.c,v 1.35 2008/07/14 04:24:52 wmcbrine Exp $")
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| 
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| #include <stdlib.h>
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| #include <string.h>
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| 
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| #ifdef CHTYPE_LONG
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| 
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| # define A(x) ((chtype)x | A_ALTCHARSET)
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| 
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| chtype acs_map[128] =
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| {
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|     A(0), A(1), A(2), A(3), A(4), A(5), A(6), A(7), A(8), A(9),
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|     A(10), A(11), A(12), A(13), A(14), A(15), A(16), A(17), A(18),
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|     A(19), A(20), A(21), A(22), A(23), A(24), A(25), A(26), A(27),
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|     A(28), A(29), A(30), A(31), ' ', '!', '"', '#', '$', '%', '&',
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|     '\'', '(', ')', '*',
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| 
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|     A(0x1a), A(0x1b), A(0x18), A(0x19),
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| 
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|     '/',
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| 
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|     0xdb,
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| 
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|     '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=',
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|     '>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
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|     'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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|     'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
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| 
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|     A(0x04), 0xb1,
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| 
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|     'b', 'c', 'd', 'e',
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| 
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|     0xf8, 0xf1, 0xb0, A(0x0f), 0xd9, 0xbf, 0xda, 0xc0, 0xc5, 0x2d,
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|     0x2d, 0xc4, 0x2d, 0x5f, 0xc3, 0xb4, 0xc1, 0xc2, 0xb3, 0xf3,
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|     0xf2, 0xe3, 0xd8, 0x9c, 0xf9,
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| 
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|     A(127)
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| };
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| 
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| # undef A
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| 
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| #endif
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| 
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| Uint32 pdc_lastupdate = 0;
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| 
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| #define MAXRECT 200     /* maximum number of rects to queue up before
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|                            an update is forced; the number was chosen
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|                            arbitrarily */
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| 
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| static SDL_Rect uprect[MAXRECT];       /* table of rects to update */
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| static chtype oldch = (chtype)(-1);    /* current attribute */
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| static int rectcount = 0;              /* index into uprect */
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| static short foregr = -2, backgr = -2; /* current foreground, background */
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| 
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| /* do the real updates on a delay */
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| 
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| void PDC_update_rects(void)
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| {
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|     if (rectcount)
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|     {
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|         /* if the maximum number of rects has been reached, we're
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|            probably better off doing a full screen update */
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| 
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|         if (rectcount == MAXRECT)
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|             SDL_Flip(pdc_screen);
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|         else
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|             SDL_UpdateRects(pdc_screen, rectcount, uprect);
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| 
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|         pdc_lastupdate = SDL_GetTicks();
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|         rectcount = 0;
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|     }
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| }
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| 
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| /* set the font colors to match the chtype's attribute */
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| 
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| static void _set_attr(chtype ch)
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| {
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|     ch &= (A_COLOR|A_BOLD|A_BLINK|A_REVERSE);
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| 
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|     if (oldch != ch)
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|     {
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|         short newfg, newbg;
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| 
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|         if (SP->mono)
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|             return;
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| 
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|         PDC_pair_content(PAIR_NUMBER(ch), &newfg, &newbg);
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| 
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|         newfg |= (ch & A_BOLD) ? 8 : 0;
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|         newbg |= (ch & A_BLINK) ? 8 : 0;
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| 
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|         if (ch & A_REVERSE)
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|         {
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|             short tmp = newfg;
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|             newfg = newbg;
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|             newbg = tmp;
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|         }
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| 
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|         if (newfg != foregr)
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|         {
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|             SDL_SetPalette(pdc_font, SDL_LOGPAL,
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|                            pdc_color + newfg, pdc_flastc, 1);
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|             foregr = newfg;
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|         }
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| 
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|         if (newbg != backgr)
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|         {
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|             if (newbg == -1)
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|                 SDL_SetColorKey(pdc_font, SDL_SRCCOLORKEY, 0);
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|             else
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|             {
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|                 if (backgr == -1)
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|                     SDL_SetColorKey(pdc_font, 0, 0);
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| 
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|                 SDL_SetPalette(pdc_font, SDL_LOGPAL,
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|                                pdc_color + newbg, 0, 1);
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|             }
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| 
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|             backgr = newbg;
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|         }
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| 
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|         oldch = ch;
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|     }
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| }
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| 
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| /* draw a cursor at (y, x) */
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| 
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| void PDC_gotoyx(int row, int col)
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| {
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|     SDL_Rect src, dest;
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|     chtype ch;
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|     int oldrow, oldcol;
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| 
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|     PDC_LOG(("PDC_gotoyx() - called: row %d col %d from row %d col %d\n",
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|              row, col, SP->cursrow, SP->curscol));
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| 
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|     if (SP->mono)
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|         return;
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| 
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|     oldrow = SP->cursrow;
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|     oldcol = SP->curscol;
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| 
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|     /* clear the old cursor */
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| 
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|     PDC_transform_line(oldrow, oldcol, 1, curscr->_y[oldrow] + oldcol);
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| 
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|     if (!SP->visibility)
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|         return;
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| 
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|     /* draw a new cursor by overprinting the existing character in
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|        reverse, either the full cell (when visibility == 2) or the
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|        lowest quarter of it (when visibility == 1) */
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| 
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|     ch = curscr->_y[row][col] ^ A_REVERSE;
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| 
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|     _set_attr(ch);
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| 
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| #ifdef CHTYPE_LONG
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|     if (ch & A_ALTCHARSET && !(ch & 0xff80))
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|         ch = acs_map[ch & 0x7f];
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| #endif
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|     src.h = (SP->visibility == 1) ? pdc_fheight >> 2 : pdc_fheight;
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|     src.w = pdc_fwidth;
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| 
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|     dest.y = (row + 1) * pdc_fheight - src.h + pdc_yoffset;
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|     dest.x = col * pdc_fwidth + pdc_xoffset;
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| 
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|     src.x = (ch & 0xff) % 32 * pdc_fwidth;
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|     src.y = (ch & 0xff) / 32 * pdc_fheight + (pdc_fheight - src.h);
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| 
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|     SDL_BlitSurface(pdc_font, &src, pdc_screen, &dest);
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| 
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|     if (oldrow != row || oldcol != col)
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|     {
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|         if (rectcount == MAXRECT)
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|             PDC_update_rects();
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| 
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|         uprect[rectcount++] = dest;
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|     }
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| }
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| 
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| /* handle the A_*LINE attributes */
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| 
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| static void _highlight(SDL_Rect *src, SDL_Rect *dest, chtype ch)
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| {
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|     short col = SP->line_color;
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| 
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|     if (SP->mono)
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|         return;
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| 
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|     if (ch & A_UNDERLINE)
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|     {
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|         if (col != -1)
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|             SDL_SetPalette(pdc_font, SDL_LOGPAL,
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|                            pdc_color + col, pdc_flastc, 1);
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| 
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|         src->x = '_' % 32 * pdc_fwidth;
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|         src->y = '_' / 32 * pdc_fheight;
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| 
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|         if (backgr != -1)
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|             SDL_SetColorKey(pdc_font, SDL_SRCCOLORKEY, 0);
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| 
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|         SDL_BlitSurface(pdc_font, src, pdc_screen, dest);
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| 
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|         if (backgr != -1)
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|             SDL_SetColorKey(pdc_font, 0, 0);
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| 
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|         if (col != -1)
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|             SDL_SetPalette(pdc_font, SDL_LOGPAL,
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|                            pdc_color + foregr, pdc_flastc, 1);
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|     }
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| 
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|     if (ch & (A_LEFTLINE|A_RIGHTLINE))
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|     {
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|         if (col == -1)
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|             col = foregr;
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| 
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|         dest->w = 1;
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| 
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|         if (ch & A_LEFTLINE)
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|             SDL_FillRect(pdc_screen, dest, pdc_mapped[col]);
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| 
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|         if (ch & A_RIGHTLINE)
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|         {
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|             dest->x += pdc_fwidth - 1;
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|             SDL_FillRect(pdc_screen, dest, pdc_mapped[col]);
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|             dest->x -= pdc_fwidth - 1;
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|         }
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| 
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|         dest->w = pdc_fwidth;
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|     }
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| }
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| 
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| /* update the given physical line to look like the corresponding line in
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|    curscr */
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| 
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| void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
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| {
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|     SDL_Rect src, dest, lastrect;
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|     int j;
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| 
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|     PDC_LOG(("PDC_transform_line() - called: lineno=%d\n", lineno));
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| 
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|     if (rectcount == MAXRECT)
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|         PDC_update_rects();
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| 
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|     src.h = pdc_fheight;
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|     src.w = pdc_fwidth;
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| 
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|     dest.y = pdc_fheight * lineno + pdc_yoffset;
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|     dest.x = pdc_fwidth * x + pdc_xoffset;
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|     dest.h = pdc_fheight;
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|     dest.w = pdc_fwidth * len;
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| 
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|     /* if the previous rect was just above this one, with the same width
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|        and horizontal position, then merge the new one with it instead
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|        of adding a new entry */
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| 
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|     if (rectcount)
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|         lastrect = uprect[rectcount - 1];
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| 
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|     if (rectcount && lastrect.x == dest.x && lastrect.w == dest.w)
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|     {
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|         if (lastrect.y + lastrect.h == dest.y)
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|             uprect[rectcount - 1].h = lastrect.h + pdc_fheight;
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|         else
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|             if (lastrect.y != dest.y)
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|                 uprect[rectcount++] = dest;
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|     }
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|     else
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|         uprect[rectcount++] = dest;
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| 
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|     dest.w = pdc_fwidth;
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| 
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|     for (j = 0; j < len; j++)
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|     {
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|         chtype ch = srcp[j];
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| 
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|         _set_attr(ch);
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| #ifdef CHTYPE_LONG
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|         if (ch & A_ALTCHARSET && !(ch & 0xff80))
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|             ch = (ch & (A_ATTRIBUTES ^ A_ALTCHARSET)) | acs_map[ch & 0x7f];
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| #endif
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|         if (backgr == -1)
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|             SDL_LowerBlit(pdc_tileback, &dest, pdc_screen, &dest);
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| 
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|         src.x = (ch & 0xff) % 32 * pdc_fwidth;
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|         src.y = (ch & 0xff) / 32 * pdc_fheight;
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| 
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|         SDL_LowerBlit(pdc_font, &src, pdc_screen, &dest);
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| 
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|         if (ch & (A_UNDERLINE|A_LEFTLINE|A_RIGHTLINE))
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|             _highlight(&src, &dest, ch);
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| 
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|         dest.x += pdc_fwidth;
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|     }
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| }
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