/* $Id$ * $URL$ * * new style X11 Driver for LCD4Linux * * Copyright (C) 2003 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * based on the old XWindow.c which is * Copyright (C) 2000 Herbert Rosmanith * * 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. * */ /* * * exported fuctions: * * struct DRIVER drv_X11 * */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "timer.h" #include "plugin.h" #include "drv.h" #include "widget.h" #include "widget_keypad.h" #include "drv_generic_graphic.h" #include "drv_generic_keypad.h" #ifdef WITH_DMALLOC #include #endif static char Name[] = "X11"; 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 buttons = 0; /* number of keypad buttons */ static int btnwidth = 0; static int btnheight = 0; static int dimx, dimy; /* total window dimension in pixel */ static RGBA *drv_X11_FB = NULL; static Display *dp; static int sc, dd; static Window w, rw; static Visual *vi; static GC gc; static Colormap cm; static XColor xc; static Pixmap pm; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static void drv_X11_color(RGBA c) { xc.red = 255 * c.R; xc.green = 255 * c.G; xc.blue = 255 * c.B; xc.flags = DoRed | DoGreen | DoBlue; if (XAllocColor(dp, cm, &xc) == False) { error("%s: XAllocColor(%02x%02x%02x) failed!", Name, c.R, c.G, c.B); } XSetForeground(dp, gc, xc.pixel); XSetBackground(dp, gc, xc.pixel); } 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++) { int y = border + (r / YRES) * rgap + r * (pixel + pgap); for (c = col; c < col + width; c++) { int x = border + (c / XRES) * cgap + c * (pixel + pgap); RGBA p1 = drv_X11_FB[r * DCOLS + c]; RGBA p2 = drv_generic_graphic_rgb(r, c); if (p1.R != p2.R || p1.G != p2.G || p1.B != p2.B) { drv_X11_color(p2); XFillRectangle(dp, w, gc, x, y, pixel, pixel); drv_X11_FB[r * DCOLS + c] = p2; dirty = 1; } } } if (dirty) { XSync(dp, False); } } static int drv_X11_brightness(int brightness) { static unsigned char Brightness = 0; RGBA col = BL_COL; int i; float dim; /* -1 is used to query the current brightness */ if (brightness == -1) return Brightness; if (brightness < 0) brightness = 0; if (brightness > 255) brightness = 255; Brightness = brightness; dim = Brightness / 255.0; col.R *= dim; col.G *= dim; col.B *= dim; debug("%s: set backlight to %d%%, original backlight color: 0x%02x%02x%02x%02x, dimmed: 0x%02x%02x%02x%02x", Name, (int)(dim * 100), BL_COL.R, BL_COL.G, BL_COL.B, BL_COL.A, col.R, col.G, col.B, col.A); for (i = 0; i < DCOLS * DROWS; i++) { drv_X11_FB[i] = col; } drv_X11_color(col); XFillRectangle(dp, pm, gc, 0, 0, dimx + 2 * border + btnwidth, dimy + 2 * border); XSetWindowBackground(dp, w, xc.pixel); XClearWindow(dp, w); /* redraw every LCD pixel */ drv_X11_blit(0, 0, LROWS, LCOLS); return Brightness; } static int drv_X11_keypad(const int num) { int val = WIDGET_KEY_PRESSED; switch (num) { case 1: val += WIDGET_KEY_UP; break; case 2: val += WIDGET_KEY_DOWN; break; case 3: val += WIDGET_KEY_LEFT; break; case 4: val += WIDGET_KEY_RIGHT; break; case 5: val += WIDGET_KEY_CONFIRM; break; case 6: val += WIDGET_KEY_CANCEL; break; default: error("%s: unknown keypad value %d", Name, num); } debug("%s: key %c (0x%x) pressed", Name, num, num); return val; } 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; XFontStruct *xfs; int xoffset = border + (DCOLS / XRES) * cgap + DCOLS * (pixel + pgap); int yoffset = border + (DROWS / YRES) * rgap; int yk; char *s; char unknownTxt[10]; 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; drv_X11_color(drv_generic_graphic_rgb(r, c)); XFillRectangle(dp, w, gc, xc, yc, pixel, pixel); } } /* Keypad on the right side */ if (x1 >= xoffset) { xfs = XQueryFont(dp, XGContextFromGC(DefaultGC(dp, 0))); if (drv_X11_brightness(-1) > 127) { drv_X11_color(FG_COL); } else { drv_X11_color(BG_COL); } for (r = 0; r < buttons; r++) { yk = yoffset + r * (btnheight + pgap); switch(r) { case 0: s = "Up"; break; case 1: s = "Down"; break; case 2: s = "Left"; break; case 3: s = "Right"; break; case 4: s = "Confirm"; break; case 5: s = "Cancel"; break; default: snprintf(unknownTxt, sizeof(unknownTxt), "#%d??", r); s = unknownTxt; } XDrawRectangle(dp, w, gc, xoffset, yk, btnwidth, btnheight - 2); XDrawString(dp, w, gc, xoffset + btnwidth / 2 - (xfs->max_bounds.width * strlen(s)) / 2, yk + btnheight / 2 + xfs->max_bounds.ascent / 2, s, strlen(s)); } } //XSync(dp, False); } static void drv_X11_timer( __attribute__ ((unused)) void *notused) { XEvent ev; int xoffset = border + (DCOLS / XRES) * cgap + DCOLS * (pixel + pgap); int yoffset = border + (DROWS / YRES) * rgap; static int btn = 0; if (XCheckWindowEvent(dp, w, ExposureMask | ButtonPressMask | ButtonReleaseMask, &ev) == 0) return; switch(ev.type) { case Expose: drv_X11_expose(ev.xexpose.x, ev.xexpose.y, ev.xexpose.width, ev.xexpose.height); break; case ButtonPress: if ( ev.xbutton.x >= xoffset && ev.xbutton.x <= xoffset + btnwidth && ev.xbutton.y >= yoffset && ev.xbutton.y <= yoffset + buttons * btnheight + (buttons -1 ) *pgap ) { btn = (ev.xbutton.y - yoffset) / (btnheight + pgap) + 1; /* btn 0 is unused */ drv_X11_color(BG_COL); XFillRectangle(dp, w, gc, xoffset + 1, yoffset + (btn - 1) * (btnheight + pgap) + 1, btnwidth - 1, btnheight - 2 - 1); drv_generic_keypad_press(btn); } break; case ButtonRelease: if ( ev.xbutton.x >= xoffset && ev.xbutton.x <= xoffset + btnwidth && ev.xbutton.y >= yoffset && ev.xbutton.y <= yoffset + buttons * btnheight + (buttons -1 ) *pgap ) { XClearArea(dp, w, xoffset, yoffset + (btn - 1) * (btnheight + pgap), btnwidth, btnheight - 2, 1 /* true */); btn = (ev.xbutton.y - yoffset) / (btnheight + pgap) + 1; /* btn 0 is unused */ info("%s: Button %d released", Name, btn); } break; default: debug("%s: unknown XEvent %d", Name, ev.type); } } static int drv_X11_start(const char *section) { int i; char *s; XSetWindowAttributes wa; XSizeHints sh; 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; /* we need the basecolor for the brightness early */ s = cfg_get(section, "basecolor", "000000ff"); if (color2RGBA(s, &BL_COL) < 0) { error("%s: ignoring illegal color '%s'", Name, s); } free(s); /* virtual keyboard: number of buttons (0..6) */ if (cfg_number(section, "buttons", 0, 0, 6, &buttons) < 0) return -1; drv_X11_FB = malloc(DCOLS * DROWS * sizeof(*drv_X11_FB)); if (drv_X11_FB == NULL) { error("%s: framebuffer could not be allocated: malloc() failed", Name); return -1; } for (i = 0; i < DCOLS * DROWS; i++) { drv_X11_FB[i] = BL_COL; } if ((dp = XOpenDisplay(NULL)) == NULL) { error("%s: can't open display", Name); return -1; } sc = DefaultScreen(dp); gc = DefaultGC(dp, sc); vi = DefaultVisual(dp, sc); dd = DefaultDepth(dp, sc); rw = DefaultRootWindow(dp); cm = DefaultColormap(dp, sc); dimx = DCOLS * pixel + (DCOLS - 1) * pgap + (DCOLS / XRES - 1) * cgap; dimy = DROWS * pixel + (DROWS - 1) * pgap + (DROWS / YRES - 1) * rgap; if (buttons != 0) { btnwidth = (DCOLS * pixel + (DCOLS - 1) * pgap) / 10; btnheight = (DROWS * pixel + (DROWS - 1) * pgap) / buttons; } wa.event_mask = ExposureMask | ButtonPressMask | ButtonReleaseMask; sh.min_width = sh.max_width = dimx + 2 * border + btnwidth; sh.min_height = sh.max_height = dimy + 2 * border; sh.flags = PPosition | PSize | PMinSize | PMaxSize; w = XCreateWindow(dp, rw, 0, 0, sh.min_width, sh.min_height, 0, 0, InputOutput, vi, CWEventMask, &wa); pm = XCreatePixmap(dp, w, dimx, dimy, dd); XSetWMProperties(dp, w, NULL, NULL, NULL, 0, &sh, NULL, NULL); drv_X11_color(BL_COL); XFillRectangle(dp, pm, gc, 0, 0, sh.min_width, sh.min_height); XSetWindowBackground(dp, w, xc.pixel); XClearWindow(dp, w); /* set brightness (after first background painting) */ if (cfg_number(section, "Brightness", 0, 0, 255, &i) > 0) { drv_X11_brightness(i); } 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 ***/ /****************************************/ static void plugin_brightness(RESULT * result, const int argc, RESULT * argv[]) { double brightness; switch (argc) { case 0: brightness = drv_X11_brightness(-1); SetResult(&result, R_NUMBER, &brightness); break; case 1: brightness = drv_X11_brightness(R2N(argv[0])); SetResult(&result, R_NUMBER, &brightness); break; default: error("%s.brightness(): wrong number of parameters", Name); SetResult(&result, R_STRING, ""); } } /****************************************/ /*** 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) { int ret; info("%s: %s", Name, "$Rev$"); /* start display */ if ((ret = drv_X11_start(section)) != 0) return ret; /* real worker functions */ drv_generic_graphic_real_blit = drv_X11_blit; drv_generic_keypad_real_press = drv_X11_keypad; /* initialize generic graphic driver */ if ((ret = drv_generic_graphic_init(section, Name)) != 0) return ret; /* initialize generic key pad driver */ if ((ret = drv_generic_keypad_init(section, Name)) != 0) return ret; drv_generic_graphic_clear(); /* initially expose window */ 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 plugins */ AddFunction("LCD::brightness", -1, plugin_brightness); return 0; } /* close driver & display */ int drv_X11_quit(const __attribute__ ((unused)) int quiet) { info("%s: shutting down.", Name); drv_generic_graphic_quit(); drv_generic_keypad_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, };