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authorreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-05-25 14:27:21 +0000
committerreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-05-25 14:27:21 +0000
commitc5e2e9afcd9e73b81344a55000c0f5235babe4a6 (patch)
tree37c25bd816076c5c2a411d2bdf1b64d95d11c44b
parentbdf3e629a1d65b4a451b335674048962b5cfec2c (diff)
downloadlcd4linux-c5e2e9afcd9e73b81344a55000c0f5235babe4a6.tar.gz
[lcd4linux @ 2004-05-25 14:27:21 by reinelt]
added drv_Image.c (this time really!) git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@431 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to '')
-rw-r--r--drv_Image.c506
1 files changed, 506 insertions, 0 deletions
diff --git a/drv_Image.c b/drv_Image.c
new file mode 100644
index 0000000..43f4192
--- /dev/null
+++ b/drv_Image.c
@@ -0,0 +1,506 @@
+/* $Id: drv_Image.c,v 1.1 2004/05/25 14:27:21 reinelt Exp $
+ *
+ * new style Image (PPM/PNG) Driver for LCD4Linux
+ *
+ * Copyright 1999-2004 Michael Reinelt <reinelt@eunet.at>
+ * Copyright 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_Image.c,v $
+ * Revision 1.1 2004/05/25 14:27:21 reinelt
+ *
+ * added drv_Image.c (this time really!)
+ *
+ */
+
+/*
+ *
+ * exported fuctions:
+ *
+ * struct DRIVER drv_Image
+ *
+ */
+
+
+#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>
+
+#ifdef WITH_PNG
+#ifdef HAVE_GD_GD_H
+#include <gd/gd.h>
+#else
+#ifdef HAVE_GD_H
+#include <gd.h>
+#else
+#error "gd.h not found!"
+#error "cannot compile PNG driver"
+#endif
+#endif
+#endif
+
+
+#include "debug.h"
+#include "cfg.h"
+#include "timer.h"
+#include "qprintf.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[]="Image";
+
+static enum {PPM, PNG} Format;
+
+static unsigned int 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_IMG_FB = NULL;
+
+static int dirty = 1;
+
+// ****************************************
+// *** hardware dependant functions ***
+// ****************************************
+
+#ifdef WITH_PPM
+static int drv_IMG_flush_PPM (void)
+{
+ static int seq=0;
+ static unsigned char *bitbuf=NULL;
+ static unsigned char *rowbuf=NULL;
+ int xsize, ysize, row, col;
+ unsigned char R[3], G[3], B[3];
+ char path[256], tmp[256], buffer[256];
+ int fd;
+
+ xsize = 2*border + (DCOLS/XRES-1)*cgap + DCOLS*pixel + (DCOLS-1)*pgap;
+ ysize = 2*border + (DROWS/YRES-1)*rgap + DROWS*pixel + (DROWS-1)*pgap;
+
+ if (bitbuf == NULL) {
+ if ((bitbuf = malloc(xsize*ysize*sizeof(*bitbuf))) == NULL) {
+ error ("%s: malloc(%d) failed: %s", Name, xsize*ysize*sizeof(*bitbuf), strerror(errno));
+ return -1;
+ }
+ }
+
+ if (rowbuf == NULL) {
+ if ((rowbuf = malloc(3*xsize*sizeof(*rowbuf))) == NULL) {
+ error ("Raster: malloc(%d) failed: %s", 3*xsize*sizeof(*rowbuf), strerror(errno));
+ return -1;
+ }
+ }
+
+ memset (bitbuf, 0, xsize*ysize*sizeof(*bitbuf));
+
+ for (row = 0; row < DROWS; row++) {
+ int y = border + (row/YRES)*rgap + row*(pixel+pgap);
+ for (col = 0; col < DCOLS; col++) {
+ int x = border + (col/XRES)*cgap + col*(pixel+pgap);
+ int a, b;
+ for (a = 0; a < pixel; a++)
+ for (b = 0; b < pixel; b++)
+ bitbuf[y*xsize+x+a*xsize+b] = drv_IMG_FB[row*DCOLS+col]+1;
+ }
+ }
+
+ snprintf (path, sizeof(path), output, seq++);
+ qprintf(tmp, sizeof(tmp), "%s.tmp", path);
+
+ if ((fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 0644))<0) {
+ error ("%s: open(%s) failed: %s", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ qprintf(buffer, sizeof(buffer), "P6\n%d %d\n255\n", xsize, ysize);
+ if (write (fd, buffer, strlen(buffer)) < 0) {
+ error ("%s: write(%s) failed: %s", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ R[0] = 0xff & bg_col>>16;
+ G[0] = 0xff & bg_col>>8;
+ B[0] = 0xff & bg_col;
+
+ R[1] = 0xff & hg_col>>16;
+ G[1] = 0xff & hg_col>>8;
+ B[1] = 0xff & hg_col;
+
+ R[2] = 0xff & fg_col>>16;
+ G[2] = 0xff & fg_col>>8;
+ B[2] = 0xff & fg_col;
+
+ for (row = 0; row < ysize; row++) {
+ int c = 0;
+ for (col = 0; col < xsize; col++) {
+ int i = bitbuf[row*xsize+col];
+ rowbuf[c++] = R[i];
+ rowbuf[c++] = G[i];
+ rowbuf[c++] = B[i];
+ }
+ if (write (fd, rowbuf, c) < 0) {
+ error ("%s: write(%s) failed: %s", Name, tmp, strerror(errno));
+ break;
+ }
+ }
+
+ if (close (fd) < 0) {
+ error ("%s: close(%s) failed: %s", Name, tmp, strerror(errno));
+ return -1;
+ }
+ if (rename (tmp, path)<0) {
+ error ("%s: rename(%s) failed: %s", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef WITH_PNG
+static int drv_IMG_flush_PNG (void)
+{
+ static int seq = 0;
+ int xsize, ysize, row, col;
+ char path[256], tmp[256];
+ FILE *fp;
+ gdImagePtr im;
+ int bg, hg, fg;
+
+ xsize = 2*border + (DCOLS/XRES-1)*cgap + DCOLS*pixel + (DCOLS-1)*pgap;
+ ysize = 2*border + (DROWS/YRES-1)*rgap + DROWS*pixel + (DROWS-1)*pgap;
+
+ im = gdImageCreate(xsize, ysize);
+
+ /* first color = background */
+ bg = gdImageColorAllocate(im,
+ 0xff & bg_col>>16,
+ 0xff & bg_col>>8,
+ 0xff & bg_col);
+
+ hg = gdImageColorAllocate(im,
+ 0xff & hg_col>>16,
+ 0xff & hg_col>>8,
+ 0xff & hg_col);
+
+
+ fg = gdImageColorAllocate(im,
+ 0xff & fg_col>>16,
+ 0xff & fg_col>>8,
+ 0xff & fg_col);
+
+
+ for (row = 0; row < DROWS; row++) {
+ int y = border + (row/YRES)*rgap + row*(pixel+pgap);
+ for (col = 0; col < DCOLS; col++) {
+ int x = border + (col/XRES)*cgap + col*(pixel+pgap);
+ gdImageFilledRectangle(im, x, y, x + pixel - 1 , y + pixel - 1,
+ drv_IMG_FB[row*DCOLS+col]? fg : hg);
+ }
+ }
+
+ snprintf (path, sizeof(path), output, seq++);
+ qprintf (tmp, sizeof(tmp), "%s.tmp", path);
+
+ if ((fp = fopen(tmp, "w")) == NULL) {
+ error("%s: fopen(%s) failed: %s\n", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ gdImagePng(im, fp);
+ gdImageDestroy(im);
+
+
+ if (fclose (fp) != 0) {
+ error("%s: fclose(%s) failed: %s\n", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ if (rename (tmp, path) < 0) {
+ error("%s: rename(%s) failed: %s\n", Name, tmp, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+#endif
+
+
+static void drv_IMG_flush (void)
+{
+ switch (Format) {
+ case PPM:
+ drv_IMG_flush_PPM();
+ break;
+ case PNG:
+ drv_IMG_flush_PNG();
+ break;
+ }
+}
+
+
+static void drv_IMG_timer (void *notused)
+{
+ if (dirty) {
+ drv_IMG_flush();
+ dirty = 0;
+ }
+}
+
+
+static void drv_IMG_blit(int row, int col, int height, int width)
+{
+ int r, c;
+
+ for (r=row; r<row+height && r<DROWS; r++) {
+ for (c=col; c<col+width && c<DCOLS; c++) {
+ unsigned char p = drv_generic_graphic_FB[r*LCOLS+c];
+ if (drv_IMG_FB[r*DCOLS+c] != p) {
+ drv_IMG_FB[r*DCOLS+c] = p;
+ dirty = 1;
+ }
+ }
+ }
+}
+
+
+static int drv_IMG_start (char *section)
+{
+ char *s;
+
+ if (output==NULL || *output=='\0') {
+ error ("%s: no output file specified (use -o switch)", Name);
+ return -1;
+ }
+
+ // read file format from config
+ s = cfg_get(section, "Format", NULL);
+ if (s == NULL || *s == '\0') {
+ error ("%s: no '%s.Format' entry from %s", Name, section, cfg_source());
+ free(s);
+ return -1;
+ }
+
+ if (strcmp (s, "PPM") == 0) {
+ Format = PPM;
+ } else if (strcmp (s, "PNG") == 0) {
+ Format = PNG;
+ } else {
+ error ("%s: bad %s.Format '%s' from %s", Name, section, s, cfg_source());
+ free(s);
+ return -1;
+ }
+ free(s);
+
+ // 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, 1000000, &border)<0) return -1;
+
+ if (sscanf(s=cfg_get(NULL, "foreground", "#102000"), "#%x", &fg_col)!=1) {
+ error ("%s: bad %s.foreground color '%s' from %s", Name, section, s, cfg_source());
+ free(s);
+ return -1;
+ }
+ free(s);
+
+ if (sscanf(s=cfg_get(NULL, "halfground", "#70c000"), "#%x", &hg_col)!=1) {
+ error ("%s: bad %s.halfground color '%s' from %s", Name, section, s, cfg_source());
+ free(s);
+ return -1;
+ }
+ free(s);
+
+ if (sscanf(s=cfg_get(NULL, "background", "#80d000"), "#%x", &bg_col)!=1) {
+ error ("%s: bad %s.background color '%s' from %s", Name, section, s, cfg_source());
+ free(s);
+ return -1;
+ }
+ free(s);
+
+ drv_IMG_FB = malloc(DCOLS*DROWS);
+ if (drv_IMG_FB == NULL) {
+ error ("%s: framebuffer could not be allocated: malloc() failed", Name);
+ return -1;
+ }
+
+ memset(drv_IMG_FB, 0, DCOLS*DROWS*sizeof(*drv_IMG_FB));
+
+
+ dimx = DCOLS*pixel + (DCOLS-1)*pgap + (DCOLS/XRES-1)*cgap;
+ dimy = DROWS*pixel + (DROWS-1)*pgap + (DROWS/YRES-1)*rgap;
+
+
+ // initially flush the image to a file
+ drv_IMG_flush();
+
+ // regularly flush the image to a file
+ // Fixme: make 100msec configurable
+ timer_add (drv_IMG_timer, NULL, 100, 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_IMG_list (void)
+{
+ printf ("PPM PNG");
+ return 0;
+}
+
+
+// initialize driver & display
+int drv_IMG_init (char *section)
+{
+ WIDGET_CLASS wc;
+ int ret;
+
+ // real worker functions
+ drv_generic_graphic_real_blit = drv_IMG_blit;
+
+ // start display
+ if ((ret=drv_IMG_start (section))!=0)
+ return ret;
+
+ // initialize generic graphic driver
+ if ((ret=drv_generic_graphic_init(section, Name))!=0)
+ return ret;
+
+ // 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_IMG_quit (void) {
+
+ info("%s: shutting down.", Name);
+ drv_generic_graphic_quit();
+
+ if (drv_IMG_FB) {
+ free (drv_IMG_FB);
+ drv_IMG_FB = NULL;
+ }
+
+ return (0);
+}
+
+
+DRIVER drv_Image = {
+ name: Name,
+ list: drv_IMG_list,
+ init: drv_IMG_init,
+ quit: drv_IMG_quit,
+};
+
+