/* $Id: drv_generic_graphic.c,v 1.34 2006/08/14 19:24:22 harbaum Exp $ * * generic driver helper for graphic displays * * Copyright (C) 1999, 2000 Michael Reinelt <reinelt@eunet.at> * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * 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_generic_graphic.c,v $ * Revision 1.34 2006/08/14 19:24:22 harbaum * Umlaut support, added KVV HTTP-User-Agent * * Revision 1.33 2006/08/13 09:53:10 reinelt * dynamic properties added (used by 'style' of text widget) * * Revision 1.32 2006/08/13 06:46:51 reinelt * T6963 soft-timing & enhancements; indent * * Revision 1.31 2006/08/09 17:25:34 harbaum * Better bar color support and new bold font * * Revision 1.30 2006/08/08 20:16:29 harbaum * Added "extracolor" (used for e.g. bar border) and RGB support for LEDMATRIX * * Revision 1.29 2006/07/31 03:48:09 reinelt * preparations for scrolling * * Revision 1.28 2006/06/20 08:50:58 reinelt * widget_image linker error hopefully finally fixed * * Revision 1.27 2006/04/09 17:46:14 reinelt * vertical bar patch fro graphic displays by Ronald Hopfer * * Revision 1.26 2006/04/09 14:17:50 reinelt * autoconf/library fixes, image and graphic display inversion * * Revision 1.25 2006/02/27 07:53:52 reinelt * some more graphic issues fixed * * Revision 1.24 2006/02/27 06:15:55 reinelt * indent... * * Revision 1.23 2006/02/27 06:14:46 reinelt * graphic bug resulting in all black pixels solved * * Revision 1.22 2006/02/24 13:07:10 geronet * hollow bars for graphic lcd's * * Revision 1.21 2006/02/19 07:20:53 reinelt * image support nearly finished * * Revision 1.20 2006/02/08 04:55:05 reinelt * moved widget registration to drv_generic_graphic * * Revision 1.19 2006/02/07 05:36:13 reinelt * Layers added to Layout * * Revision 1.18 2006/01/30 05:47:38 reinelt * graphic subsystem changed to full-color RGBA * * Revision 1.17 2006/01/03 06:13:46 reinelt * GPIO's for MatrixOrbital * * Revision 1.16 2005/12/13 14:07:28 reinelt * LPH7508 driver finished * * Revision 1.15 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.14 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * * Revision 1.13 2005/01/09 10:53:24 reinelt * small type in plugin_uname fixed * new homepage lcd4linux.bulix.org * * Revision 1.12 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.11 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 1.10 2004/06/20 10:09:55 reinelt * * 'const'ified the whole source * * Revision 1.9 2004/06/09 06:40:29 reinelt * * splash screen for T6963 driver * * Revision 1.8 2004/06/08 21:46:38 reinelt * * splash screen for X11 driver (and generic graphic driver) * * Revision 1.7 2004/06/01 06:45:30 reinelt * * some Fixme's processed * documented some code * * Revision 1.6 2004/03/03 03:47:04 reinelt * big patch from Martin Hejl: * - use qprintf() where appropriate * - save CPU cycles on gettimeofday() * - add quit() functions to free allocated memory * - fixed lots of memory leaks * * Revision 1.5 2004/02/29 14:30:59 reinelt * icon visibility fix for generic graphics from Xavier * * Revision 1.4 2004/02/24 05:55:04 reinelt * * X11 driver ported * * Revision 1.3 2004/02/22 17:35:41 reinelt * some fixes for generic graphic driver and T6963 * removed ^M from plugin_imon (Nico, are you editing under Windows?) * * Revision 1.2 2004/02/18 06:39:20 reinelt * T6963 driver for graphic displays finished * * Revision 1.1 2004/02/15 21:43:43 reinelt * T6963 driver nearly finished * framework for graphic displays done * i2c_sensors patch from Xavier * some more old generation files removed * */ /* * * exported functions: * * int drv_generic_graphic_init (char *section, char *driver); * initializes the generic graphic driver * * int drv_generic_graphic_draw (WIDGET *W); * renders Text widget into framebuffer * calls drv_generic_graphic_real_blit() * * int drv_generic_graphic_icon_draw (WIDGET *W); * renders Icon widget into framebuffer * calls drv_generic_graphic_real_blit() * * int drv_generic_graphic_bar_draw (WIDGET *W); * renders Bar widget into framebuffer * calls drv_generic_graphic_real_blit() * * int drv_generic_graphic_quit (void); * closes generic graphic driver * */ #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 "debug.h" #include "cfg.h" #include "plugin.h" #include "layout.h" #include "widget.h" #include "widget_text.h" #include "widget_icon.h" #include "widget_bar.h" #include "widget_image.h" #include "rgb.h" #include "drv.h" #include "drv_generic.h" #include "drv_generic_graphic.h" #include "property.h" #include "font_6x8.h" #include "font_6x8_bold.h" #ifdef WITH_DMALLOC #include <dmalloc.h> #endif /* pixel colors */ RGBA FG_COL = { R: 0x00, G: 0x00, B: 0x00, A:0xff }; RGBA BG_COL = { R: 0xff, G: 0xff, B: 0xff, A:0xff }; RGBA BL_COL = { R: 0xff, G: 0xff, B: 0xff, A:0x00 }; RGBA NO_COL = { R: 0x00, G: 0x00, B: 0x00, A:0x00 }; static char *Section = NULL; static char *Driver = NULL; /* framebuffer */ static RGBA *drv_generic_graphic_FB[LAYERS] = { NULL, }; /* inverted colors */ static int INVERTED = 0; /* must be implemented by the real driver */ void (*drv_generic_graphic_real_blit) () = NULL; /****************************************/ /*** generic Framebuffer stuff ***/ /****************************************/ static void drv_generic_graphic_resizeFB(int rows, int cols) { RGBA *newFB; int i, l, row, col; /* Layout FB is large enough */ if (rows <= LROWS && cols <= LCOLS) return; /* get maximum values */ if (rows < LROWS) rows = LROWS; if (cols < LCOLS) cols = LCOLS; for (l = 0; l < LAYERS; l++) { /* allocate and initialize new Layout FB */ newFB = malloc(cols * rows * sizeof(*newFB)); for (i = 0; i < rows * cols; i++) newFB[i] = (l == 0) ? BG_COL : NO_COL; /* transfer contents */ if (drv_generic_graphic_FB[l] != NULL) { for (row = 0; row < LROWS; row++) { for (col = 0; col < LCOLS; col++) { newFB[row * cols + col] = drv_generic_graphic_FB[l][row * LCOLS + col]; } } free(drv_generic_graphic_FB[l]); } drv_generic_graphic_FB[l] = newFB; } LCOLS = cols; LROWS = rows; } static void drv_generic_graphic_window(int pos, int size, int max, int *wpos, int *wsize) { int p1 = pos; int p2 = pos + size; *wpos = 0; *wsize = 0; if (p1 > max || p2 < 0 || size < 1) return; if (p1 < 0) p1 = 0; if (p2 > max) p2 = max; *wpos = p1; *wsize = p2 - p1; } static void drv_generic_graphic_blit(const int row, const int col, const int height, const int width) { if (drv_generic_graphic_real_blit) { int r, c, h, w; drv_generic_graphic_window(row, height, DROWS, &r, &h); drv_generic_graphic_window(col, width, DCOLS, &c, &w); if (h > 0 && w > 0) { drv_generic_graphic_real_blit(r, c, h, w); } } } static RGBA drv_generic_graphic_blend(const int row, const int col) { int l; RGBA p; RGBA ret; ret.R = BL_COL.R; ret.G = BL_COL.G; ret.B = BL_COL.B; ret.A = 0xff; for (l = LAYERS - 1; l >= 0; l--) { p = drv_generic_graphic_FB[l][row * LCOLS + col]; if (p.A > 0) { ret.R = (p.R * p.A + ret.R * (255 - p.A)) / 255; ret.G = (p.G * p.A + ret.G * (255 - p.A)) / 255; ret.B = (p.B * p.A + ret.B * (255 - p.A)) / 255; } } if (INVERTED) { ret.R = 255 - ret.R; ret.G = 255 - ret.G; ret.B = 255 - ret.B; } return ret; } /****************************************/ /*** generic text handling ***/ /****************************************/ static void drv_generic_graphic_render(const int layer, const int row, const int col, const RGBA fg, const RGBA bg, const char *style, const char *txt) { int c, r, x, y, len; /* sanity checks */ if (layer < 0 || layer >= LAYERS) { error("%s: layer %d out of bounds (0..%d)", Driver, layer, LAYERS - 1); return; } len = strlen(txt); /* maybe grow layout framebuffer */ drv_generic_graphic_resizeFB(row + YRES, col + XRES * len); r = row; c = col; /* render text into layout FB */ while (*txt != '\0') { unsigned char *chr; if (strcasestr(style, "bold") != NULL) { chr = Font_6x8_bold[(int) *(unsigned char *) txt]; } else { chr = Font_6x8[(int) *(unsigned char *) txt]; } for (y = 0; y < YRES; y++) { int mask = 1 << XRES; for (x = 0; x < XRES; x++) { mask >>= 1; if (chr[y] & mask) drv_generic_graphic_FB[layer][(r + y) * LCOLS + c + x] = fg; else drv_generic_graphic_FB[layer][(r + y) * LCOLS + c + x] = bg; } } c += XRES; txt++; } /* flush area */ drv_generic_graphic_blit(row, col, YRES, XRES * len); } /* say hello to the user */ int drv_generic_graphic_greet(const char *msg1, const char *msg2) { char *line1[] = { "* LCD4Linux " VERSION " *", "LCD4Linux " VERSION, "* LCD4Linux *", "LCD4Linux", "L4Linux", NULL }; char *line2[] = { "http://lcd4linux.bulix.org", "lcd4linux.bulix.org", NULL }; int i; int flag = 0; unsigned int cols = DCOLS / XRES; unsigned int rows = DROWS / YRES; for (i = 0; line1[i]; i++) { if (strlen(line1[i]) <= cols) { drv_generic_graphic_render(0, YRES * 0, XRES * ((cols - strlen(line1[i])) / 2), FG_COL, BG_COL, "norm", line1[i]); flag = 1; break; } } if (rows >= 2) { for (i = 0; line2[i]; i++) { if (strlen(line2[i]) <= cols) { drv_generic_graphic_render(0, YRES * 1, XRES * ((cols - strlen(line2[i])) / 2), FG_COL, BG_COL, "norm", line2[i]); flag = 1; break; } } } if (msg1 && rows >= 3) { unsigned int len = strlen(msg1); if (len <= cols) { drv_generic_graphic_render(0, YRES * 2, XRES * ((cols - len) / 2), FG_COL, BG_COL, "norm", msg1); flag = 1; } } if (msg2 && rows >= 4) { unsigned int len = strlen(msg2); if (len <= cols) { drv_generic_graphic_render(0, YRES * 3, XRES * ((cols - len) / 2), FG_COL, BG_COL, "norm", msg2); flag = 1; } } return flag; } int drv_generic_graphic_draw(WIDGET * W) { WIDGET_TEXT *Text = W->data; RGBA fg, bg; fg = W->fg_valid ? W->fg_color : FG_COL; bg = W->bg_valid ? W->bg_color : BG_COL; drv_generic_graphic_render(W->layer, YRES * W->row, XRES * W->col, fg, bg, P2S(&Text->style), Text->buffer); return 0; } /****************************************/ /*** generic icon handling ***/ /****************************************/ int drv_generic_graphic_icon_draw(WIDGET * W) { WIDGET_ICON *Icon = W->data; RGBA fg, bg; unsigned char *bitmap = Icon->bitmap + YRES * Icon->curmap; int layer, row, col; int x, y; layer = W->layer; row = YRES * W->row; col = XRES * W->col; fg = W->fg_valid ? W->fg_color : FG_COL; bg = W->bg_valid ? W->bg_color : BG_COL; /* sanity check */ if (layer < 0 || layer >= LAYERS) { error("%s: layer %d out of bounds (0..%d)", Driver, layer, LAYERS - 1); return -1; } /* maybe grow layout framebuffer */ drv_generic_graphic_resizeFB(row + YRES, col + XRES); /* render icon */ for (y = 0; y < YRES; y++) { int mask = 1 << XRES; for (x = 0; x < XRES; x++) { int i = (row + y) * LCOLS + col + x; mask >>= 1; if (Icon->visible) { if (bitmap[y] & mask) drv_generic_graphic_FB[layer][i] = fg; else drv_generic_graphic_FB[layer][i] = bg; } else { drv_generic_graphic_FB[layer][i] = BG_COL; } } } /* flush area */ drv_generic_graphic_blit(row, col, YRES, XRES); return 0; } /****************************************/ /*** generic bar handling ***/ /****************************************/ int drv_generic_graphic_bar_draw(WIDGET * W) { WIDGET_BAR *Bar = W->data; RGBA fg, bg, bar[2]; int layer, row, col, len, res, rev, max, val1, val2; int x, y; DIRECTION dir; STYLE style; layer = W->layer; row = YRES * W->row; col = XRES * W->col; dir = Bar->direction; style = Bar->style; len = Bar->length; fg = W->fg_valid ? W->fg_color : FG_COL; bg = W->bg_valid ? W->bg_color : BG_COL; bar[0] = Bar->color_valid[0] ? Bar->color[0] : fg; bar[1] = Bar->color_valid[1] ? Bar->color[1] : fg; /* sanity check */ if (layer < 0 || layer >= LAYERS) { error("%s: layer %d out of bounds (0..%d)", Driver, layer, LAYERS - 1); return -1; } /* maybe grow layout framebuffer */ if (dir & (DIR_EAST | DIR_WEST)) { drv_generic_graphic_resizeFB(row + YRES, col + XRES * len); } else { drv_generic_graphic_resizeFB(row + YRES * len, col + XRES); } res = dir & (DIR_EAST | DIR_WEST) ? XRES : YRES; max = len * res; val1 = Bar->val1 * (double) (max); val2 = Bar->val2 * (double) (max); if (val1 < 1) val1 = 1; else if (val1 > max) val1 = max; if (val2 < 1) val2 = 1; else if (val2 > max) val2 = max; rev = 0; switch (dir) { case DIR_WEST: val1 = max - val1; val2 = max - val2; rev = 1; case DIR_EAST: for (y = 0; y < YRES; y++) { int val = y < YRES / 2 ? val1 : val2; RGBA bcol = y < YRES / 2 ? bar[0] : bar[1]; for (x = 0; x < max; x++) { if (x < val) drv_generic_graphic_FB[layer][(row + y) * LCOLS + col + x] = rev ? bg : bcol; else drv_generic_graphic_FB[layer][(row + y) * LCOLS + col + x] = rev ? bcol : bg; if (style) { drv_generic_graphic_FB[layer][(row) * LCOLS + col + x] = fg; drv_generic_graphic_FB[layer][(row + YRES - 1) * LCOLS + col + x] = fg; } } if (style) { drv_generic_graphic_FB[layer][(row + y) * LCOLS + col] = fg; drv_generic_graphic_FB[layer][(row + y) * LCOLS + col + max - 1] = fg; } } break; case DIR_NORTH: val1 = max - val1; val2 = max - val2; rev = 1; case DIR_SOUTH: for (x = 0; x < XRES; x++) { int val = x < XRES / 2 ? val1 : val2; for (y = 0; y < max; y++) { if (y < val) drv_generic_graphic_FB[layer][(row + y) * LCOLS + col + x] = rev ? bg : fg; else drv_generic_graphic_FB[layer][(row + y) * LCOLS + col + x] = rev ? fg : bg; } } break; } /* flush area */ if (dir & (DIR_EAST | DIR_WEST)) { drv_generic_graphic_blit(row, col, YRES, XRES * len); } else { drv_generic_graphic_blit(row, col, YRES * len, XRES); } return 0; } /****************************************/ /*** generic image handling ***/ /****************************************/ int drv_generic_graphic_image_draw(WIDGET * W) { WIDGET_IMAGE *Image = W->data; int layer, row, col, width, height; int x, y; layer = W->layer; row = W->row; col = W->col; width = Image->width; height = Image->height; /* sanity check */ if (layer < 0 || layer >= LAYERS) { error("%s: layer %d out of bounds (0..%d)", Driver, layer, LAYERS - 1); return -1; } /* if no size or no image at all, do nothing */ if (width <= 0 || height <= 0 || Image->bitmap == NULL) { return 0; } /* maybe grow layout framebuffer */ drv_generic_graphic_resizeFB(row + height, col + width); /* render image */ for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { int i = (row + y) * LCOLS + col + x; if (Image->visible) { drv_generic_graphic_FB[layer][i] = Image->bitmap[y * width + x]; } else { drv_generic_graphic_FB[layer][i] = BG_COL; } } } /* flush area */ drv_generic_graphic_blit(row, col, height, width); return 0; } /****************************************/ /*** generic init/quit ***/ /****************************************/ int drv_generic_graphic_init(const char *section, const char *driver) { int l; char *color; WIDGET_CLASS wc; Section = (char *) section; Driver = (char *) driver; /* init layout framebuffer */ LROWS = 0; LCOLS = 0; for (l = 0; l < LAYERS; l++) drv_generic_graphic_FB[l] = NULL; drv_generic_graphic_resizeFB(DROWS, DCOLS); /* sanity check */ for (l = 0; l < LAYERS; l++) { if (drv_generic_graphic_FB[l] == NULL) { error("%s: framebuffer could not be allocated: malloc() failed", Driver); return -1; } } /* init generic driver & register plugins */ drv_generic_init(); /* set default colors */ color = cfg_get(Section, "foreground", "000000ff"); if (color2RGBA(color, &FG_COL) < 0) { error("%s: ignoring illegal color '%s'", Driver, color); } if (color) free(color); color = cfg_get(Section, "background", "ffffff00"); if (color2RGBA(color, &BG_COL) < 0) { error("%s: ignoring illegal color '%s'", Driver, color); } if (color) free(color); color = cfg_get(Section, "basecolor", "ffffff"); if (color2RGBA(color, &BL_COL) < 0) { error("%s: ignoring illegal color '%s'", Driver, color); } if (color) free(color); /* inverted display? */ cfg_number(section, "inverted", 0, 0, 1, &INVERTED); /* 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 image widget */ #ifdef WITH_IMAGE wc = Widget_Image; wc.draw = drv_generic_graphic_image_draw; widget_register(&wc); #endif /* clear framebuffer */ drv_generic_graphic_clear(); return 0; } int drv_generic_graphic_clear(void) { int i, l; for (l = 0; l < LAYERS; l++) for (i = 0; i < LCOLS * LROWS; i++) drv_generic_graphic_FB[l][i] = NO_COL; drv_generic_graphic_blit(0, 0, LROWS, LCOLS); return 0; } RGBA drv_generic_graphic_rgb(const int row, const int col) { return drv_generic_graphic_blend(row, col); } unsigned char drv_generic_graphic_gray(const int row, const int col) { RGBA p = drv_generic_graphic_blend(row, col); return (77 * p.R + 150 * p.G + 28 * p.B) / 255; } unsigned char drv_generic_graphic_black(const int row, const int col) { return drv_generic_graphic_gray(row, col) < 127; } int drv_generic_graphic_quit(void) { int l; for (l = 0; l < LAYERS; l++) { if (drv_generic_graphic_FB[l]) { free(drv_generic_graphic_FB[l]); drv_generic_graphic_FB[l] = NULL; } } widget_unregister(); return (0); }