First pass at resize utility

doc/BuildingCrossDev.md

@@ -101,3 +101,13 @@ Notes:
     # cp *.h /usr/local/include/pngquant/
     # cp *.a /usr/local/lib
 ```
+
+9. GraphicsMagick
+    ```
+    # wget http://78.108.103.11/MIRROR/ftp/GraphicsMagick/1.3/GraphicsMagick-1.3.23.tar.gz
+    # tar zxfv GraphicsMagick-1.3.23.tar.gz
+    # cd GraphicsMagick-1.3.23
+    # ./configure --prefix=/usr/local
+    # make
+    # make install
+```

tools/resize/Makefile

@@ -0,0 +1,27 @@
+PROGRAM=./out/resize
+OBJS=out/resize.o
+WARN_ERROR=-Werror
+HOST_WARNINGS=$(WARN_ERROR) -pedantic-errors -Wfatal-errors -Wall  -Wextra -Wno-unused-parameter -Wshadow -limagequant
+HOST_CFLAGS=$(HOST_WARNINGS) -O3 `GraphicsMagick-config --cppflags`
+LIBS=`GraphicsMagick-config --ldflags --libs`
+
+$(PROGRAM): out bin $(OBJS) 
+	gcc $(OBJS) -o $(PROGRAM) $(LIBS)
+
+-include $(OBJS:.o=.d)
+
+out/%.o: %.c
+	gcc -c $(HOST_CFLAGS) $< -o $@ 
+	@gcc -MM $(HOST_CFLAGS) $*.c > out/$*.d
+	@mv -f out/$*.d out/$*.d.tmp
+	@sed  's/^.*\:/out\/&/' < out/$*.d.tmp > out/$*.d
+	@rm -f out/$*.d.tmp
+
+out:
+	mkdir out
+
+bin:
+	mkdir bin
+
+clean:
+	rm -rf out bin *~

tools/resize/resize.c

@@ -0,0 +1,110 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/types.h>
+#include <magick/api.h>
+
+int 
+main(int argc, char **argv)
+{
+  Image *image = 0, *resizeImage = 0, *croppedImage = 0;
+  char infile[MaxTextExtent];
+  char outfile[MaxTextExtent];
+  int arg = 1, exit_status = 0;
+  ImageInfo *imageInfo;
+  ExceptionInfo  exception;
+
+  InitializeMagick(NULL);
+  imageInfo=CloneImageInfo(0);
+  GetExceptionInfo(&exception);
+  
+#if 0
+  const int targetWidth = 320;
+  const int targetHeight = 256;
+  const int interlaced = 0;
+  const float blur = 0.75;
+#else
+  const int targetWidth = 320;
+  const int targetHeight = 512;
+  const int interlaced = 1;
+  const float blur = 0.75;
+#endif
+  
+  if (argc != 3) {
+    (void) fprintf ( stderr, "Usage: %s infile outfile\n", argv[0] );
+    (void) fflush(stderr);
+    exit_status = 1;
+    goto program_exit;
+  }
+
+  (void) strncpy(infile, argv[arg], MaxTextExtent-1 );
+  arg++;
+  (void) strncpy(outfile, argv[arg], MaxTextExtent-1 );
+
+  (void) strcpy(imageInfo->filename, infile);
+  image = ReadImage(imageInfo, &exception);
+  if (image == (Image *) NULL) {
+    CatchException(&exception);
+    exit_status = 1;
+    goto program_exit;
+  }
+
+  int width = image->columns;
+  int height = image->rows;
+
+  float scale = (float)height/(float)targetHeight;
+  int newWidth = width/scale;
+
+  resizeImage=ResizeImage(image, newWidth/(interlaced?2:1), targetHeight,
+			   //GaussianFilter,
+			   //BoxFilter,
+			   //TriangleFilter,
+			   //HermiteFilter,
+			   //HanningFilter,
+			   //HammingFilter,
+			   //BlackmanFilter,
+			   //GaussianFilter,
+			   //QuadraticFilter,
+			   //CubicFilter,
+			   //CatromFilter,
+			   //MitchellFilter,
+			   //LanczosFilter,
+			   BesselFilter,
+			   //SincFilter,
+			   blur, &exception);
+
+  RectangleInfo rect = {
+    .x = ((newWidth/(interlaced?2:1))-targetWidth)/2,
+    .y = 0,
+    .width = targetWidth,
+    .height = targetHeight
+  };
+
+  croppedImage = CropImage(resizeImage, &rect, &exception);
+
+  (void) strcpy(croppedImage->filename, outfile);
+  if (!WriteImage (imageInfo, croppedImage))
+    {
+      CatchException(&croppedImage->exception);
+      exit_status = 1;
+      goto program_exit;
+    }
+
+ program_exit:
+
+  if (image != (Image *) NULL)
+    DestroyImage(image);
+
+  if (resizeImage != (Image *)NULL)
+    DestroyImage(resizeImage);
+
+  if (croppedImage != (Image *)NULL)
+    DestroyImage(croppedImage);
+
+  if (imageInfo != (ImageInfo *) NULL)
+    DestroyImageInfo(imageInfo);
+  DestroyMagick();
+
+  return exit_status;
+}