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-rw-r--r--drv_X11.c561
1 files changed, 561 insertions, 0 deletions
diff --git a/drv_X11.c b/drv_X11.c
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--- /dev/null
+++ b/drv_X11.c
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+/* $Id: drv_X11.c,v 1.1 2004/02/24 05:55:04 reinelt Exp $
+ *
+ * new style X11 Driver for LCD4Linux
+ *
+ * Copyright 1999-2004 Michael Reinelt <reinelt@eunet.at>
+ * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * based on the old XWindow.c which is
+ * Copyright 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 1.1 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 "timer.h"
+#include "udelay.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;
+
+
+#if 0
+static LCD Lcd;
+
+static unsigned char *LCDpixmap2;
+static int DROWS=-1,DCOLS=-1; /*DROWS+DCOLS without background*/
+static int XRES=-1,YRES=-1; /*XRES+YRES (same as self->...)*/
+static int icons; /* number of user-defined icons */
+static int async_update(); /*PROTO*/
+static pid_t async_updater_pid=1;
+static int semid=-1;
+static int shmid=-1;
+static int ppid; /*parent pid*/
+
+#endif
+
+// ****************************************
+// *** hardware dependant functions ***
+// ****************************************
+
+static void drv_X11_blit(int row, int col, int height, 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(int x, int y, int width, 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 (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 (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 Size '%s' from %s", Name, s, cfg_source());
+ return -1;
+ }
+
+ if (sscanf(s=cfg_get(section, "font", "5x8"), "%dx%d", &XRES, &YRES)!=2 || XRES<1|| YRES<1) {
+ error ("%s: bad font '%s' from %s", Name, s, cfg_source());
+ return -1;
+ }
+
+ if (sscanf(s=cfg_get(section, "pixel", "4+1"), "%d+%d", &pixel, &pgap)!=2 || pixel<1 || pgap<0) {
+ error ("%s: bad pixel '%s' from %s", Name, s, cfg_source());
+ return -1;
+ }
+
+ if (sscanf(s=cfg_get(section, "gap", "-1x-1"), "%dx%d", &cgap, &rgap)!=2 || cgap<-1 || rgap<-1) {
+ error ("%s: bad gap '%s' from %s", Name, s, cfg_source());
+ return -1;
+ }
+ if (rgap<0) rgap=pixel+pgap;
+ if (cgap<0) cgap=pixel+pgap;
+
+ if (cfg_number(section, "border", 0, 0, 1000000, &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;
+}
+
+
+#if 0
+static int init_x(int rows,int cols,int XRES,int YRES)
+{
+ return 0;
+}
+
+
+int xlcdinit(LCD *Self)
+{
+ char *s;
+
+ if (sscanf(s=cfg_get(NULL, "size", "20x4"),"%dx%d",&DCOLS,&DROWS)!=2
+ || DROWS<1 || DCOLS<1) {
+ error ("X11: bad size '%s'",s);
+ return -1;
+ }
+ if (sscanf(s=cfg_get(NULL, "font", "5x8"),"%dx%d",&XRES,&YRES)!=2
+ || XRES<5 || YRES>10) {
+ error ("X11: bad font '%s'",s);
+ return -1;
+ }
+ if (sscanf(s=cfg_get(NULL, "pixel", "4+1"),"%d+%d",&pixel,&pgap)!=2
+ || pixel<1 || pgap<0) {
+ error ("X11: bad pixel '%s'",s);
+ return -1;
+ }
+ if (sscanf(s=cfg_get(NULL, "gap", "-1x-1"),"%dx%d",&cgap,&rgap)!=2
+ || cgap<-1 || rgap<-1) {
+ error ("X11: bad gap '%s'",s);
+ return -1;
+ }
+ if (rgap<0) rgap=pixel+pgap;
+ if (cgap<0) cgap=pixel+pgap;
+
+ if (cfg_number(NULL, "border", 0, 0, 1000000, &border)<0) return -1;
+
+ fg_col=cfg_get(NULL, "foreground", "#000000");
+ bg_col=cfg_get(NULL, "background", "#80d000");
+ hg_col=cfg_get(NULL, "halfground", "#70c000");
+ if (*fg_col=='\\') fg_col++;
+ if (*bg_col=='\\') bg_col++;
+ if (*hg_col=='\\') hg_col++;
+
+ if (pix_init(DROWS,DCOLS,XRES,YRES)==-1) return -1;
+
+ if (cfg_number(NULL, "Icons", 0, 0, 8, &icons) < 0) return -1;
+ if (icons>0) {
+ info ("allocating %d icons", icons);
+ icon_init(DROWS, DCOLS, XRES, YRES, 8, icons, pix_icon);
+ }
+
+ if (init_x(DROWS,DCOLS,XRES,YRES)==-1) return -1;
+ init_signals();
+ if (init_shm(DROWS*DCOLS*XRES*YRES,&LCDpixmap2)==-1) return -1;
+ memset(LCDpixmap2,0xff,DROWS*YRES*DCOLS*XRES);
+ if (init_thread(DROWS*DCOLS*XRES*YRES)==-1) return -1;
+ Self->DROWS=DROWS;
+ Self->DCOLS=DCOLS;
+ Self->XRES=XRES;
+ Self->YRES=YRES;
+ Self->icons=icons;
+ Lcd=*Self;
+
+ pix_clear();
+ return 0;
+}
+
+
+int xlcdflush() {
+ int dirty;
+ int row,col;
+
+ acquire_lock();
+ dirty=0;
+ for(row=0;row<DROWS*YRES;row++) {
+ int y=border+(row/YRES)*rgap+row*(pixel+pgap);
+ for(col=0;col<DCOLS*XRES;col++) {
+ int x=border+(col/XRES)*cgap+col*(pixel+pgap);
+ int p=row*DCOLS*XRES+col;
+ if (LCDpixmap[p]^LCDpixmap2[p]) {
+ XFillRectangle(dp,w,LCDpixmap[p]?fg_gc:hg_gc,x,y,pixel,pixel);
+ LCDpixmap2[p]=LCDpixmap[p];
+ dirty=1;
+ }
+ }
+ }
+ if (dirty) XSync(dp,False);
+ release_lock();
+ return 0;
+}
+
+
+/*
+ * this one should only be called from the updater-thread
+ * no user serviceable parts inside
+ */
+
+static void update(int x,int y,int width,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 x0, y0;
+ int x1, y1;
+ int row, col;
+ int dirty;
+
+ x0=x-pixel;
+ y0=y-pixel;
+ x1=x+pixel+width;
+ y1=y+pixel+height;
+
+ dirty=0;
+ for(row=0; row<DROWS; row++) {
+ int y = border + (row/YRES)*rgap + row*(pixel+pgap);
+ if (y<y0 || y>y1) continue;
+ for(col=0; col<DCOLS; col++) {
+ int x = border + (col/XRES)*cgap + col*(pixel+pgap);
+ int p;
+ if (x<x0 || x>x1) continue;
+ p=row*DCOLS*XRES+col;
+ XFillRectangle(dp,w,LCDpixmap2[p]?fg_gc:hg_gc,x,y,pixel,pixel);
+ dirty=1;
+ }
+ }
+ if (dirty) XSync(dp,False);
+}
+
+
+static int async_update()
+{
+ XSetWindowAttributes wa;
+ XEvent ev;
+
+ if ((dp=XOpenDisplay(NULL))==NULL)
+ return -1;
+ wa.event_mask=ExposureMask;
+ XChangeWindowAttributes(dp,w,CWEventMask,&wa);
+ for(;;) {
+ XWindowEvent(dp,w,ExposureMask,&ev);
+ if (ev.type==Expose) {
+ acquire_lock();
+ update(ev.xexpose.x,ev.xexpose.y,
+ ev.xexpose.width,ev.xexpose.height);
+ release_lock();
+ }
+ }
+}
+#endif
+
+
+// ****************************************
+// *** 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 (char *section)
+{
+ 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_X11_expose (0, 0, dimx+2*border, dimy+2*border);
+
+ // 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 (void) {
+
+ 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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