linux-dvb-apps.git - linux-dvb-apps Debian packaging

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/* $Id: drv_X11.c,v 1.11 2005/05/08 04:32:44 reinelt Exp $ * * new style X11 Driver for LCD4Linux * * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at> * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * based on the old XWindow.c which is * Copyright (C) 2000 Herbert Rosmanith <herp@wildsau.idv.uni-linz.ac.at> * * This file is part of LCD4Linux. * * LCD4Linux 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, or (at your option) * any later version. * * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA. * * * $Log: drv_X11.c,v $ * Revision 1.11 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.10 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * * Revision 1.9 2004/11/29 04:42:07 reinelt * removed the 99999 msec limit on widget update time (thanks to Petri Damsten) * * Revision 1.8 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.7 2004/06/26 09:27:21 reinelt * * added '-W' to CFLAGS * changed all C++ comments to C ones * cleaned up a lot of signed/unsigned mistakes * * Revision 1.6 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source * * Revision 1.5 2004/06/08 21:46:38 reinelt * * splash screen for X11 driver (and generic graphic driver) * * Revision 1.4 2004/06/06 06:51:59 reinelt * * do not display end splash screen if quiet=1 * * Revision 1.3 2004/06/02 09:41:19 reinelt * * prepared support for startup splash screen * * Revision 1.2 2004/05/25 14:26:29 reinelt * * added "Image" driver (was: Raster.c) for PPM and PNG creation * fixed some glitches in the X11 driver * * Revision 1.1 2004/02/24 05:55:04 reinelt * * X11 driver ported * */ /* * * exported fuctions: * * struct DRIVER drv_X11 * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <termios.h> #include <fcntl.h> #include <sys/time.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "timer.h" #include "plugin.h" #include "widget.h" #include "widget_text.h" #include "widget_icon.h" #include "widget_bar.h" #include "drv.h" #include "drv_generic_graphic.h" #ifdef WITH_DMALLOC #include <dmalloc.h> #endif static char Name[] = "X11"; static char *fg_col, *bg_col, *hg_col; static int pixel = -1; /* pointsize in pixel */ static int pgap = 0; /* gap between points */ static int rgap = 0; /* row gap between lines */ static int cgap = 0; /* column gap between characters */ static int border = 0; /* window border */ static int dimx, dimy; /* total window dimension in pixel */ static unsigned char *drv_X11_FB = NULL; static Display *dp; static int sc, dd; static Window w, rw; static Visual *vi; static GC fg_gc, bg_gc, hg_gc; static Colormap cm; static XColor fg_xc, bg_xc, hg_xc; static Pixmap pm; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static void drv_X11_blit(const int row, const int col, const int height, const int width) { int r, c; int dirty = 0; for (r = row; r < row + height && r < DROWS; r++) { int y = border + (r / YRES) * rgap + r * (pixel + pgap); for (c = col; c < col + width && c < DCOLS; c++) { int x = border + (c / XRES) * cgap + c * (pixel + pgap); unsigned char p = drv_generic_graphic_FB[r * LCOLS + c]; if (drv_X11_FB[r * DCOLS + c] != p) { XFillRectangle(dp, w, p ? fg_gc : hg_gc, x, y, pixel, pixel); drv_X11_FB[r * DCOLS + c] = p; dirty = 1; } } } if (dirty) { XSync(dp, False); } } static void drv_X11_expose(const int x, const int y, const int width, const int height) { /* * theory of operation: * instead of the old, fully-featured but complicated update * region calculation, we do an update of the whole display, * but check before every pixel if the pixel region is inside * the update region. */ int r, c; int x0, y0; int x1, y1; x0 = x - pixel; x1 = x + pixel + width; y0 = y - pixel; y1 = y + pixel + height; for (r = 0; r < DROWS; r++) { int yc = border + (r / YRES) * rgap + r * (pixel + pgap); if (yc < y0 || yc > y1) continue; for (c = 0; c < DCOLS; c++) { int xc = border + (c / XRES) * cgap + c * (pixel + pgap); if (xc < x0 || xc > x1) continue; XFillRectangle(dp, w, drv_generic_graphic_FB[r * LCOLS + c] ? fg_gc : hg_gc, xc, yc, pixel, pixel); } } XSync(dp, False); } static void drv_X11_timer( __attribute__ ((unused)) void *notused) { XEvent ev; if (XCheckWindowEvent(dp, w, ExposureMask, &ev) == 0) return; if (ev.type == Expose) { drv_X11_expose(ev.xexpose.x, ev.xexpose.y, ev.xexpose.width, ev.xexpose.height); } } static int drv_X11_start(const char *section) { char *s; XSetWindowAttributes wa; XSizeHints sh; XColor dummy; XEvent ev; /* read display size from config */ if (sscanf(s = cfg_get(section, "Size", "120x32"), "%dx%d", &DCOLS, &DROWS) != 2 || DCOLS < 1 || DROWS < 1) { error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); if (sscanf(s = cfg_get(section, "font", "5x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) { error("%s: bad %s.font '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); if (sscanf(s = cfg_get(section, "pixel", "4+1"), "%d+%d", &pixel, &pgap) != 2 || pixel < 1 || pgap < 0) { error("%s: bad %s.pixel '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); if (sscanf(s = cfg_get(section, "gap", "-1x-1"), "%dx%d", &cgap, &rgap) != 2 || cgap < -1 || rgap < -1) { error("%s: bad %s.gap '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); if (rgap < 0) rgap = pixel + pgap; if (cgap < 0) cgap = pixel + pgap; if (cfg_number(section, "border", 0, 0, -1, &border) < 0) return -1; fg_col = cfg_get(section, "foreground", "#000000"); bg_col = cfg_get(section, "background", "#80d000"); hg_col = cfg_get(section, "halfground", "#70c000"); if (*fg_col == '\\') fg_col++; if (*bg_col == '\\') bg_col++; if (*hg_col == '\\') hg_col++; drv_X11_FB = malloc(DCOLS * DROWS); if (drv_X11_FB == NULL) { error("%s: framebuffer could not be allocated: malloc() failed", Name); return -1; } /* init with 255 so all 'halfground' pixels will be drawn */ memset(drv_X11_FB, 255, DCOLS * DROWS * sizeof(*drv_X11_FB)); if ((dp = XOpenDisplay(NULL)) == NULL) { error("%s: can't open display", Name); return -1; } sc = DefaultScreen(dp); fg_gc = DefaultGC(dp, sc); vi = DefaultVisual(dp, sc); dd = DefaultDepth(dp, sc); rw = DefaultRootWindow(dp); cm = DefaultColormap(dp, sc); if (XAllocNamedColor(dp, cm, fg_col, &fg_xc, &dummy) == False) { error("%s: can't alloc foreground color '%s'", Name, fg_col); return -1; } if (XAllocNamedColor(dp, cm, bg_col, &bg_xc, &dummy) == False) { error("%s: can't alloc background color '%s'", Name, bg_col); return -1; } if (XAllocNamedColor(dp, cm, hg_col, &hg_xc, &dummy) == False) { error("%s: can't alloc halfground color '%s'", Name, hg_col); return -1; } dimx = DCOLS * pixel + (DCOLS - 1) * pgap + (DCOLS / XRES - 1) * cgap; dimy = DROWS * pixel + (DROWS - 1) * pgap + (DROWS / YRES - 1) * rgap; wa.event_mask = ExposureMask; w = XCreateWindow(dp, rw, 0, 0, dimx + 2 * border, dimy + 2 * border, 0, 0, InputOutput, vi, CWEventMask, &wa); pm = XCreatePixmap(dp, w, dimx, dimy, dd); sh.min_width = sh.max_width = dimx + 2 * border; sh.min_height = sh.max_height = dimy + 2 * border; sh.flags = PPosition | PSize | PMinSize | PMaxSize; XSetWMProperties(dp, w, NULL, NULL, NULL, 0, &sh, NULL, NULL); XSetForeground(dp, fg_gc, fg_xc.pixel); XSetBackground(dp, fg_gc, bg_xc.pixel); bg_gc = XCreateGC(dp, w, 0, NULL); XSetForeground(dp, bg_gc, bg_xc.pixel); XSetBackground(dp, bg_gc, fg_xc.pixel); hg_gc = XCreateGC(dp, w, 0, NULL); XSetForeground(dp, hg_gc, hg_xc.pixel); XSetBackground(dp, hg_gc, fg_xc.pixel); XFillRectangle(dp, pm, bg_gc, 0, 0, dimx + 2 * border, dimy + 2 * border); XSetWindowBackground(dp, w, bg_xc.pixel); XClearWindow(dp, w); XStoreName(dp, w, "LCD4Linux"); XMapWindow(dp, w); XFlush(dp); while (1) { XNextEvent(dp, &ev); if (ev.type == Expose && ev.xexpose.count == 0) break; } /* regularly process X events */ /* Fixme: make 20msec configurable */ timer_add(drv_X11_timer, NULL, 20, 0); return 0; } /****************************************/ /*** plugins ***/ /****************************************/ /* none at the moment... */ /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_graphic_draw(W) */ /* using drv_generic_graphic_icon_draw(W) */ /* using drv_generic_graphic_bar_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* list models */ int drv_X11_list(void) { printf("any"); return 0; } /* initialize driver & display */ int drv_X11_init(const char *section, const int quiet) { WIDGET_CLASS wc; int ret; /* real worker functions */ drv_generic_graphic_real_blit = drv_X11_blit; /* start display */ if ((ret = drv_X11_start(section)) != 0) return ret; /* initialize generic graphic driver */ if ((ret = drv_generic_graphic_init(section, Name)) != 0) return ret; /* initially expose window */ drv_generic_graphic_clear(); drv_X11_expose(0, 0, dimx + 2 * border, dimy + 2 * border); if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_graphic_greet(buffer, NULL)) { sleep(3); drv_generic_graphic_clear(); } } /* register text widget */ wc = Widget_Text; wc.draw = drv_generic_graphic_draw; widget_register(&wc); /* register icon widget */ wc = Widget_Icon; wc.draw = drv_generic_graphic_icon_draw; widget_register(&wc); /* register bar widget */ wc = Widget_Bar; wc.draw = drv_generic_graphic_bar_draw; widget_register(&wc); /* register plugins */ /* none at the moment... */ return 0; } /* close driver & display */ int drv_X11_quit(const __attribute__ ((unused)) int quiet) { info("%s: shutting down.", Name); drv_generic_graphic_quit(); if (drv_X11_FB) { free(drv_X11_FB); drv_X11_FB = NULL; } return (0); } DRIVER drv_X11 = { name:Name, list:drv_X11_list, init:drv_X11_init, quit:drv_X11_quit, };


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