@@ -6,7 +6,8 @@

  *

  * History:

  *       1/07/2019 Creation

- *         5/11/2019 Fix erroneous 1-pixel border around every tile

+ *       5/11/2019 Fix erroneous 1-pixel border around every tile

+ *       9/03/2023 Support transparency

  *

  * Author: Dario Rodriguez dario@softhome.net

  * This program is distributed under the terms of the GNU GPL v2.1+

@@ -20,7 +21,10 @@ main(int argc, array(string) argv)

         int px,py;

         string destfilename;

         int total;

-        Image.Image img,result;

+        Image.Image image,alpha;

+        Image.Layer l;

+        mapping imagemapping;

+        array(Image.Layer) layers=({});

         if(argc<4 || (argc>1 && argv[1]=="--help")) {

                 Stdio.werror("Syntax:  "+argv[0]+" <width_in_tiles> <height_in_tiles> <file1.png> [<file2.png> [...]] <destfile.png>\n");

                 Stdio.werror("Example: "+argv[0]+" 3 2 file1.png file2.png file3.png file4.png file5.png file6.png dest.png\n");

@@ -34,19 +38,28 @@ main(int argc, array(string) argv)

         maxx=maxy=1;

         write("* Calculating tile size\n");

         foreach(infiles, string f) {

-                img=Image.load(f);

-                if(img->xsize()>maxx)

-                        maxx=img->xsize();

-                if(img->ysize()>maxy)

-                        maxy=img->ysize();

+                image=Image.load(f);

+                if(image->xsize()>maxx)

+                        maxx=image->xsize();

+                if(image->ysize()>maxy)

+                        maxy=image->ysize();

         }

-        result=Image.Image(maxx*a4w,maxy*a4h,255,255,255);

+        image=Image.Image(maxx*a4w,maxy*a4h,255,255,255);

+        alpha=Image.Image(maxx*a4w,maxy*a4h,0,0,0);

+        l=Image.Layer(image,alpha,"normal");

+        l->set_offset(0,0);

+        layers+=({l});

         px=py=0;

         total=0;

         foreach(infiles, string f) {

                 write("* Processing "+f+"...\n");

-                img=Image.load(f);

-                result->paste(img,px*(maxx),py*(maxy));

+                imagemapping=Image._load(f);

+                image=imagemapping["image"];

+                alpha=imagemapping["alpha"];

+                l=Image.Layer(image,alpha,"normal");

+                l->set_offset(px*(maxx),py*(maxy));

+                layers+=({l});

+                //result->paste(img,px*(maxx),py*(maxy));

                 px++;

                 if(px>=a4w) {

                         px=0;

@@ -54,8 +67,10 @@ main(int argc, array(string) argv)

                 }

                 total++;

         }

+        l=Image.lay(layers);

+        l->set_offset(0,0);

         write("* Writing "+destfilename+"...\n");

-        Stdio.write_file(destfilename,Image.PNG.encode(result));

+        Stdio.write_file(destfilename,Image.PNG.encode(l->image(),(["alpha":l->alpha()])));

         write("tiled "+total+" images into "+destfilename+". Process finished.\n");

         return(0);

 }

@@ -6,7 +6,7 @@

  *

  * History:

  *       1/07/2019 Creation

- *	 5/11/2019 Fix erroneous 1-pixel border around every tile

+ *         5/11/2019 Fix erroneous 1-pixel border around every tile

  *

  * Author: Dario Rodriguez dario@softhome.net

  * This program is distributed under the terms of the GNU GPL v2.1+

@@ -16,7 +16,7 @@ int

 main(int argc, array(string) argv)

 {

         int a4w,a4h;

-	int maxx,maxy;

+        int maxx,maxy;

         int px,py;

         string destfilename;

         int total;

@@ -30,30 +30,30 @@ main(int argc, array(string) argv)

         a4w=(int)argv[1];

         a4h=(int)argv[2];

         destfilename=argv[sizeof(argv)-1];

-	array(string) infiles=argv[3..sizeof(argv)-2];

-	maxx=maxy=1;

-	write("* Calculating tile size\n");

-	foreach(infiles, string f) {

-		img=Image.load(f);

-		if(img->xsize()>maxx)

-			maxx=img->xsize();

-		if(img->ysize()>maxy)

-			maxy=img->ysize();

-	}

-	result=Image.Image(maxx*a4w,maxy*a4h,255,255,255);

-	px=py=0;

-	total=0;

-	foreach(infiles, string f) {

-        	write("* Processing "+f+"...\n");

-		img=Image.load(f);

-		result->paste(img,px*(maxx),py*(maxy));

-		px++;

-		if(px>=a4w) {

-			px=0;

-			py++;

-		}

-		total++;

-	}

+        array(string) infiles=argv[3..sizeof(argv)-2];

+        maxx=maxy=1;

+        write("* Calculating tile size\n");

+        foreach(infiles, string f) {

+                img=Image.load(f);

+                if(img->xsize()>maxx)

+                        maxx=img->xsize();

+                if(img->ysize()>maxy)

+                        maxy=img->ysize();

+        }

+        result=Image.Image(maxx*a4w,maxy*a4h,255,255,255);

+        px=py=0;

+        total=0;

+        foreach(infiles, string f) {

+                write("* Processing "+f+"...\n");

+                img=Image.load(f);

+                result->paste(img,px*(maxx),py*(maxy));

+                px++;

+                if(px>=a4w) {

+                        px=0;

+                        py++;

+                }

+                total++;

+        }

         write("* Writing "+destfilename+"...\n");

         Stdio.write_file(destfilename,Image.PNG.encode(result));

         write("tiled "+total+" images into "+destfilename+". Process finished.\n");

new file mode 100755

@@ -0,0 +1,62 @@

+#!/usr/bin/pike

+/*

+ * tiler.pike

+ *

+ * Tiles NxM different pngs into a single png

+ *

+ * History:

+ *       1/07/2019 Creation

+ *	 5/11/2019 Fix erroneous 1-pixel border around every tile

+ *

+ * Author: Dario Rodriguez dario@softhome.net

+ * This program is distributed under the terms of the GNU GPL v2.1+

+ */

+

+int

+main(int argc, array(string) argv)

+{

+        int a4w,a4h;

+	int maxx,maxy;

+        int px,py;

+        string destfilename;

+        int total;

+        Image.Image img,result;

+        if(argc<4 || (argc>1 && argv[1]=="--help")) {

+                Stdio.werror("Syntax:  "+argv[0]+" <width_in_tiles> <height_in_tiles> <file1.png> [<file2.png> [...]] <destfile.png>\n");

+                Stdio.werror("Example: "+argv[0]+" 3 2 file1.png file2.png file3.png file4.png file5.png file6.png dest.png\n");

+                Stdio.werror("Example result: dest.png\n");

+                return(1);

+        }

+        a4w=(int)argv[1];

+        a4h=(int)argv[2];

+        destfilename=argv[sizeof(argv)-1];

+	array(string) infiles=argv[3..sizeof(argv)-2];

+	maxx=maxy=1;

+	write("* Calculating tile size\n");

+	foreach(infiles, string f) {

+		img=Image.load(f);

+		if(img->xsize()>maxx)

+			maxx=img->xsize();

+		if(img->ysize()>maxy)

+			maxy=img->ysize();

+	}

+	result=Image.Image(maxx*a4w,maxy*a4h,255,255,255);

+	px=py=0;

+	total=0;

+	foreach(infiles, string f) {

+        	write("* Processing "+f+"...\n");

+		img=Image.load(f);

+		result->paste(img,px*(maxx),py*(maxy));

+		px++;

+		if(px>=a4w) {

+			px=0;

+			py++;

+		}

+		total++;

+	}

+        write("* Writing "+destfilename+"...\n");

+        Stdio.write_file(destfilename,Image.PNG.encode(result));

+        write("tiled "+total+" images into "+destfilename+". Process finished.\n");

+        return(0);

+}

+