MergeImages: Added several config options.

[libucw.git] / images / image-tool.c

diff --git a/images/image-tool.c b/images/image-tool.c
index 66f368116dcc6e089e64da6322755172cc605e0e..b211f1969852a999ef52777a8c22a9db8ef2b1a9 100644 (file)
--- a/images/image-tool.c
+++ b/images/image-tool.c
@@ -1,5 +1,5 @@
 /*
- *     Simple image manupulation utility
+ *     Image Library -- Simple image manipulation utility
  *
  *     (c) 2006 Pavel Charvat <pchar@ucw.cz>
  *
@@ -29,14 +29,12 @@ Usage: image-tool [options] infile [outfile]\n\
 -F --output-format       output image format\n\
 -s --size                force output dimensions (100x200)\n\
 -b --fit-to-box          scale to fit the box (100x200)\n\
--c --colorspace          force output colorspace (Gray, GrayAlpha, RGB, RGBAlpha)\n\
+-c --colorspace          force output colorspace (Grayscale, Grayscale+Alpha, RGB, RGB+Alpha, ...)\n\
 -Q --jpeg-quality        JPEG quality (1..100)\n\
 -g --background          background color (hexadecimal RRGGBB)\n\
 -G --default-background  background applied only if the image contains no background info (RRGGBB, default=FFFFFF)\n\
--a --remove-alpha        remove alpha channel\n"
-#ifdef CONFIG_IMAGES_EXIF
-"-e --exif                reads Exif data\n"
-#endif
+-a --remove-alpha        remove alpha channel\n\
+-e --exif                reads Exif data\n"
 , stderr);
   exit(1);
 }
@@ -54,9 +52,7 @@ static struct option longopts[] =
   { "background",              0, 0, 'g' },
   { "default-background",      0, 0, 'G' },
   { "remove-alpha",            0, 0, 'a' },
-#ifdef CONFIG_IMAGES_EXIF
   { "exif",                    0, 0, 'e' },
-#endif
   { NULL,                      0, 0, 0 }
 };
 
@@ -73,9 +69,7 @@ static uns jpeg_quality;
 static struct color background_color;
 static struct color default_background_color;
 static uns remove_alpha;
-#ifdef CONFIG_IMAGES_EXIF
 static uns exif;
-#endif
 
 static void
 parse_color(struct color *color, byte *s)
@@ -90,7 +84,7 @@ parse_color(struct color *color, byte *s)
   color_make_rgb(color, (v >> 16) & 255, (v >> 8) & 255, v & 255);
 }
 
-#define MSG(x...) do{ if (verbose) log(L_INFO, ##x); }while(0)
+#define MSG(x...) do{ if (verbose) msg(L_INFO, ##x); }while(0)
 
 int
 main(int argc, char **argv)
@@ -151,11 +145,9 @@ main(int argc, char **argv)
        case 'a':
          remove_alpha++;
          break;
-#ifdef CONFIG_IMAGES_EXIF
        case 'e':
          exif++;
          break;
-#endif
        default:
          usage();
       }
@@ -166,43 +158,42 @@ main(int argc, char **argv)
   if (argc > optind)
     output_file_name = argv[optind];
 
-#define TRY(x) do{ if (!(x)) die("Error: %s", it.err_msg); }while(0)
+#define TRY(x) do{ if (!(x)) exit(1); }while(0)
   MSG("Initializing image library");
-  struct image_thread it;
+  struct image_context ctx;
   struct image_io io;
-  image_thread_init(&it);
-  if (!image_io_init(&it, &io))
-    die("Cannot initialize image I/O (%s)", it.err_msg);
+  image_context_init(&ctx);
+  ctx.tracing_level = ~0U;
+  if (!image_io_init(&ctx, &io))
+    die("Cannot initialize image I/O");
 
   MSG("Reading %s", input_file_name);
+  byte cs_buf[IMAGE_CHANNELS_FORMAT_MAX_SIZE];
   io.fastbuf = bopen(input_file_name, O_RDONLY, 1 << 18);
   io.format = input_format ? : image_file_name_to_format(input_file_name);
-#ifdef CONFIG_IMAGES_EXIF
-  io.flags |= IMAGE_IO_WANT_EXIF;
-#endif
+  if (exif)
+    io.flags |= IMAGE_IO_WANT_EXIF;
   TRY(image_io_read_header(&io));
   if (!output_file_name)
     {
       bclose(io.fastbuf);
       printf("Format:      %s\n", image_format_to_extension(io.format) ? : (byte *)"?");
       printf("Dimensions:  %dx%d\n", io.cols, io.rows);
-      printf("Colorspace:  %s\n", (io.flags & IMAGE_IO_HAS_PALETTE) ? (byte *)"Palette" : image_channels_format_to_name(io.flags & IMAGE_CHANNELS_FORMAT));
-      printf("NumColors:   %d\n", io.number_of_colors);
+      printf("Colorspace:  %s\n", (io.flags & IMAGE_IO_HAS_PALETTE) ? (byte *)"Palette" : image_channels_format_to_name(io.flags, cs_buf));
+      printf("NumColors:   %u\n", io.number_of_colors);
       if (io.background_color.color_space)
         {
          byte rgb[3];
-         color_put_rgb(rgb, &io.background_color);
+         TRY(color_put(&ctx, &io.background_color, rgb, COLOR_SPACE_RGB));
           printf("Background:  %02x%02x%02x\n", rgb[0], rgb[1], rgb[2]);
        }
-#ifdef CONFIG_IMAGES_EXIF
       if (io.exif_size)
        printf("ExifSize:    %u\n", io.exif_size);
-#endif
     }
   else
     {
       MSG("%s %dx%d %s", image_format_to_extension(io.format) ? : (byte *)"?", io.cols, io.rows,
-         (io.flags & IMAGE_IO_HAS_PALETTE) ? (byte *)"Palette" : image_channels_format_to_name(io.flags & IMAGE_CHANNELS_FORMAT));
+         (io.flags & IMAGE_IO_HAS_PALETTE) ? (byte *)"Palette" : image_channels_format_to_name(io.flags, cs_buf));
       if (cols)
         if (fit_to_box)
          {
@@ -225,19 +216,28 @@ main(int argc, char **argv)
         io.flags |= IMAGE_IO_USE_BACKGROUND;
       if (jpeg_quality)
        io.jpeg_quality = jpeg_quality;
+      uns output_fmt = output_format ? : image_file_name_to_format(output_file_name);
+      uns output_cs = io.flags & IMAGE_COLOR_SPACE;
+      if (output_fmt != IMAGE_FORMAT_JPEG &&
+         output_cs != COLOR_SPACE_GRAYSCALE &&
+         output_cs != COLOR_SPACE_RGB)
+        {
+         MSG("Forcing RGB color space");
+         io.flags = (io.flags & ~IMAGE_COLOR_SPACE) | COLOR_SPACE_RGB;
+       }
       TRY(image_io_read_data(&io, 0));
       bclose(io.fastbuf);
       MSG("Writing %s", output_file_name);
       io.fastbuf = bopen(output_file_name, O_WRONLY | O_CREAT | O_TRUNC, 1 << 18);
       io.format = output_format ? : image_file_name_to_format(output_file_name);
       MSG("%s %dx%d %s", image_format_to_extension(io.format) ? : (byte *)"?", io.cols, io.rows,
-         image_channels_format_to_name(io.flags & IMAGE_CHANNELS_FORMAT));
+         image_channels_format_to_name(io.flags, cs_buf));
       TRY(image_io_write(&io));
       bclose(io.fastbuf);
     }
 
   image_io_cleanup(&io);
-  image_thread_cleanup(&it);
+  image_context_cleanup(&ctx);
   MSG("Done.");
   return 0;
 }