initial featureset

Displays a splash, optionally takes a message string (or fromt stdin)
and renders it underneath the logo.

TODO:
 * Bitmap fonts
 * Rasterised logo

pbsplash.c

@@ -1,16 +1,64 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <tfblib/tfblib.h>
 #include <tfblib/tfb_colors.h>
-#include <unistd.h>
 
 #include "logo.h"
 
+#define MSG_MAX_LEN 4096
+
+int usage() {
+   fprintf(stderr, "pbsplash: a simple fbsplash tool\n");
+   fprintf(stderr, "--------------------------------\n");
+   fprintf(stderr, "pbsplash [-h] [-s splash image] [-m message]\n\n");
+   fprintf(stderr, "    -h          show this help\n");
+   fprintf(stderr, "    -s          path to splash image to display\n");
+   fprintf(stderr, "    -m          message to show under the splash image\n");
+
+   return 1;
+}
+
 int main(int argc, char **argv)
 {
-   int rc;
+   int rc = 0;
-   if ((rc = tfb_acquire_fb(TFB_FL_USE_DOUBLE_BUFFER, "/dev/fb0", "/dev/tty1")) != TFB_SUCCESS) {
+   int opt;
+   char *message = calloc(MSG_MAX_LEN, 1);
+   char *splash_image;
+
+   for (int i = 1; i < argc; i++)
+   {
+      printf("%d: %s\n", i, argv[i]);
+      if (strcmp(argv[i], "-h") == 0) {
+         rc = usage();
+         goto out;
+      }
+
+      if (strcmp(argv[i], "-s") == 0) {
+         splash_image = argv[1];
+         printf("splash_image path: %s\n", splash_image);
+         continue;
+      }
+
+      if (strcmp(argv[i], "-m") == 0) {
+         if (*argv[i+1] == '-') {
+            rc = read(STDIN_FILENO, message, MSG_MAX_LEN);
+            if (rc < 0)
+               goto out;
+            printf("%s\n", message);
+         } else {
+            free(message);
+            message = argv[i+1];
+         }
+         printf("message: %s\n", message);
+         continue;
+      }
+   }
+
+   if ((rc = tfb_acquire_fb(0, "/dev/fb0", "/dev/tty1")) != TFB_SUCCESS) {
       fprintf(stderr, "tfb_acquire_fb() failed with error code: %d\n", rc);
-      return 1;
+      rc = 1;
+      goto out;
    }
 
    int w = (int) tfb_screen_width();
@@ -22,30 +70,32 @@ int main(int argc, char **argv)
    float textX = x;
    float textY = y;
 
-   while(true) {
    /* Paint the whole screen in black */
    tfb_clear_screen(tfb_black);
    /* Draw a red rectangle at the center of the screen */
    /* Draw some text on-screen */
    tfb_draw_string_scaled(x + 75, y + sz + 40, tfb_white, tfb_black, 4, 4, "postmarketOS");
 
+   if (message) {
+      tfb_draw_string_scaled_wrapped(50, (int) ((float)h * 0.6), tfb_white, tfb_black, 2, 2, 80, message);
+   }
+
    for (size_t i = 0; i < sizeof(logo) / sizeof(logo[0]); i+=4)
    {
       int x1 = (int) (logo[i] / 100 * sz) + (int)x;
       int y1 = (int) (logo[i+1] / 100 * sz) + (int)y;
       int x2 = (int) (logo[i+2] / 100 * sz) + (int)x;
       int y2 = (int) (logo[i+3] / 100 * sz) + (int)y;
-         //printf("%f == ", logo[i] / 100 * w);
+      //printf("x1: %d, y1: %d, x2: %d, y2: %d\n", x1, y1, x1, y2);
-         printf("x1: %d, y1: %d, x2: %d, y2: %d\n", x1, y1, x1, y2);
       tfb_draw_line(x1, y1, x2, y2, tfb_green);
    }
 
    tfb_flush_window();
    tfb_flush_fb();
-      usleep(50000);
-   }
 
-   getchar();
+   sleep(20);
+out:
    tfb_release_fb();
-   return 0;
+   free(message);
+   return rc;
 }

tfblib

@@ -1 +1 @@
-Subproject commit 69389193fcf1c4d632febcfa0d3bdd99eb1ae2b7
+Subproject commit 3e5de1026f2965591fb9feb1256c0ea10f4dc928