fade_saver.c revision 230132
155682Smarkm/*- 2233294Sstas * Copyright (c) 1995-1998 S��ren Schmidt 355682Smarkm * All rights reserved. 455682Smarkm * 5233294Sstas * Redistribution and use in source and binary forms, with or without 655682Smarkm * modification, are permitted provided that the following conditions 755682Smarkm * are met: 855682Smarkm * 1. Redistributions of source code must retain the above copyright 9233294Sstas * notice, this list of conditions and the following disclaimer, 1055682Smarkm * without modification, immediately at the beginning of the file. 1155682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 12233294Sstas * notice, this list of conditions and the following disclaimer in the 1355682Smarkm * documentation and/or other materials provided with the distribution. 1455682Smarkm * 3. The name of the author may not be used to endorse or promote products 1555682Smarkm * derived from this software without specific prior written permission. 16233294Sstas * 1755682Smarkm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1855682Smarkm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1955682Smarkm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20233294Sstas * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2155682Smarkm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2255682Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2355682Smarkm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2455682Smarkm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2555682Smarkm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2655682Smarkm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2755682Smarkm * 2855682Smarkm * $FreeBSD: head/sys/dev/syscons/fade/fade_saver.c 230132 2012-01-15 13:23:18Z uqs $ 2955682Smarkm */ 3055682Smarkm 3155682Smarkm#include <sys/param.h> 3255682Smarkm#include <sys/systm.h> 3355682Smarkm#include <sys/kernel.h> 34233294Sstas#include <sys/module.h> 3555682Smarkm#include <sys/consio.h> 36233294Sstas#include <sys/fbio.h> 3755682Smarkm 3855682Smarkm#include <dev/fb/fbreg.h> 3955682Smarkm#include <dev/fb/splashreg.h> 4055682Smarkm#include <dev/syscons/syscons.h> 4155682Smarkm 4255682Smarkmstatic u_char palette[256*3]; 4355682Smarkm 44233294Sstasstatic int 45233294Sstasfade_saver(video_adapter_t *adp, int blank) 46233294Sstas{ 4755682Smarkm static int count = 0; 4855682Smarkm u_char pal[256*3]; 4990926Snectar int i; 5055682Smarkm 51178825Sdfr if (blank) { 52103423Snectar if (ISPALAVAIL(adp->va_flags)) { 53178825Sdfr if (count <= 0) 5455682Smarkm vidd_save_palette(adp, palette); 55178825Sdfr if (count < 256) { 5655682Smarkm pal[0] = pal[1] = pal[2] = 0; 5755682Smarkm for (i = 3; i < 256*3; i++) { 5855682Smarkm if (palette[i] - count > 60) 5955682Smarkm pal[i] = palette[i] - count; 6055682Smarkm else 61178825Sdfr pal[i] = 60; 62178825Sdfr } 63178825Sdfr vidd_load_palette(adp, pal); 64178825Sdfr count++; 65178825Sdfr } 66178825Sdfr } else { 67178825Sdfr vidd_blank_display(adp, V_DISPLAY_BLANK); 68178825Sdfr } 69178825Sdfr } else { 70178825Sdfr if (ISPALAVAIL(adp->va_flags)) { 71178825Sdfr vidd_load_palette(adp, palette); 72178825Sdfr count = 0; 73178825Sdfr } else { 74178825Sdfr vidd_blank_display(adp, V_DISPLAY_ON); 75178825Sdfr } 7655682Smarkm } 7755682Smarkm return 0; 7855682Smarkm} 7972445Sassar 8055682Smarkmstatic int 81233294Sstasfade_init(video_adapter_t *adp) 82233294Sstas{ 8355682Smarkm if (!ISPALAVAIL(adp->va_flags) && 8455682Smarkm vidd_blank_display(adp, V_DISPLAY_ON) != 0) 8555682Smarkm return ENODEV; 8655682Smarkm return 0; 8755682Smarkm} 8855682Smarkm 8955682Smarkmstatic int 9055682Smarkmfade_term(video_adapter_t *adp) 91233294Sstas{ 92233294Sstas return 0; 9355682Smarkm} 9455682Smarkm 9555682Smarkmstatic scrn_saver_t fade_module = { 9655682Smarkm "fade_saver", fade_init, fade_term, fade_saver, NULL, 9755682Smarkm}; 9855682Smarkm 9955682SmarkmSAVER_MODULE(fade_saver, fade_module); 10055682Smarkm