/* "hardware" driver for a dummy framebuffer. Used when no display hardware is supported */ /* (C) 2010 by Christian Vogel * * All Rights Reserved * * 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 #include static void fb_dummy_init(){ } static void fb_dummy_clear(){ } static void fb_dummy_boxto(uint16_t x,uint16_t y){ framebuffer->cursor_x = x; framebuffer->cursor_y = y; } static void fb_dummy_lineto(uint16_t x,uint16_t y){ framebuffer->cursor_x = x; framebuffer->cursor_y = y; } static int fb_dummy_putstr(__unused char *c, __unused int maxwidth){ return 0; } static void fb_dummy_flush(){ } struct framebuffer fb_dummy_framebuffer = { .name = "dummyfb", .init = fb_dummy_init, .clear = fb_dummy_clear, .boxto = fb_dummy_boxto, .lineto = fb_dummy_lineto, .putstr = fb_dummy_putstr, .flush = fb_dummy_flush, .width = 128, .height = 64 }; struct framebuffer *framebuffer = & fb_dummy_framebuffer;