160 строки
3.8 KiB
C
160 строки
3.8 KiB
C
/*
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* linux/drivers/video/console/tileblit.c -- Tile Blitting Operation
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*
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* Copyright (C) 2004 Antonino Daplas <adaplas @pol.net>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/fb.h>
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#include <linux/vt_kern.h>
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#include <linux/console.h>
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#include <asm/types.h>
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#include "fbcon.h"
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static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy,
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int sx, int dy, int dx, int height, int width)
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{
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struct fb_tilearea area;
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area.sx = sx;
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area.sy = sy;
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area.dx = dx;
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area.dy = dy;
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area.height = height;
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area.width = width;
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info->tileops->fb_tilecopy(info, &area);
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}
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static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy,
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int sx, int height, int width)
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{
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struct fb_tilerect rect;
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int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
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int fgshift = (vc->vc_hi_font_mask) ? 9 : 8;
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rect.index = vc->vc_video_erase_char &
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((vc->vc_hi_font_mask) ? 0x1ff : 0xff);
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rect.fg = attr_fgcol_ec(fgshift, vc, info);
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rect.bg = attr_bgcol_ec(bgshift, vc, info);
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rect.sx = sx;
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rect.sy = sy;
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rect.width = width;
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rect.height = height;
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rect.rop = ROP_COPY;
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info->tileops->fb_tilefill(info, &rect);
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}
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static void tile_putcs(struct vc_data *vc, struct fb_info *info,
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const unsigned short *s, int count, int yy, int xx,
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int fg, int bg)
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{
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struct fb_tileblit blit;
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unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
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int size = sizeof(u32) * count, i;
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blit.sx = xx;
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blit.sy = yy;
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blit.width = count;
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blit.height = 1;
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blit.fg = fg;
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blit.bg = bg;
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blit.length = count;
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blit.indices = (u32 *) fb_get_buffer_offset(info, &info->pixmap, size);
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for (i = 0; i < count; i++)
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blit.indices[i] = (u32)(scr_readw(s++) & charmask);
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info->tileops->fb_tileblit(info, &blit);
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}
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static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
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int bottom_only)
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{
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return;
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}
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static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
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int softback_lines, int fg, int bg)
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{
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struct fb_tilecursor cursor;
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int use_sw = (vc->vc_cursor_type & 0x01);
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cursor.sx = vc->vc_x;
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cursor.sy = vc->vc_y;
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cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
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cursor.fg = fg;
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cursor.bg = bg;
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switch (vc->vc_cursor_type & 0x0f) {
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case CUR_NONE:
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cursor.shape = FB_TILE_CURSOR_NONE;
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break;
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case CUR_UNDERLINE:
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cursor.shape = FB_TILE_CURSOR_UNDERLINE;
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break;
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case CUR_LOWER_THIRD:
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cursor.shape = FB_TILE_CURSOR_LOWER_THIRD;
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break;
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case CUR_LOWER_HALF:
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cursor.shape = FB_TILE_CURSOR_LOWER_HALF;
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break;
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case CUR_TWO_THIRDS:
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cursor.shape = FB_TILE_CURSOR_TWO_THIRDS;
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break;
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case CUR_BLOCK:
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default:
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cursor.shape = FB_TILE_CURSOR_BLOCK;
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break;
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}
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info->tileops->fb_tilecursor(info, &cursor);
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}
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static int tile_update_start(struct fb_info *info)
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{
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struct fbcon_ops *ops = info->fbcon_par;
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int err;
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err = fb_pan_display(info, &ops->var);
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ops->var.xoffset = info->var.xoffset;
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ops->var.yoffset = info->var.yoffset;
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ops->var.vmode = info->var.vmode;
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return err;
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}
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void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
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{
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struct fb_tilemap map;
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struct fbcon_ops *ops = info->fbcon_par;
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ops->bmove = tile_bmove;
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ops->clear = tile_clear;
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ops->putcs = tile_putcs;
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ops->clear_margins = tile_clear_margins;
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ops->cursor = tile_cursor;
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ops->update_start = tile_update_start;
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if (ops->p) {
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map.width = vc->vc_font.width;
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map.height = vc->vc_font.height;
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map.depth = 1;
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map.length = (ops->p->userfont) ?
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FNTCHARCNT(ops->p->fontdata) : 256;
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map.data = ops->p->fontdata;
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info->tileops->fb_settile(info, &map);
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}
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}
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EXPORT_SYMBOL(fbcon_set_tileops);
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MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
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MODULE_DESCRIPTION("Tile Blitting Operation");
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MODULE_LICENSE("GPL");
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