commit fabf268d45417a03b80a8b5e03a77bd5b1c4f0a6
parent 9fffaeeea8a3cf655bb5f4df8db182c642f12f38
Author: Wilson Gheen <wilson@wilsonrgheen.com>
Date: Tue, 27 Dec 2022 07:17:52 -0600
Begin implement command line options
Diffstat:
| M | photomosaics.c | | | 162 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------- |
1 file changed, 111 insertions(+), 51 deletions(-)
diff --git a/photomosaics.c b/photomosaics.c
@@ -1,4 +1,6 @@
+#include <getopt.h>
#include <locale.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -9,22 +11,13 @@ typedef struct {
unsigned int r, g, b;
} Pixel;
-static void resize_image(Image *image, ImageInfo *image_info, float resize_factor, char *new_filename, ExceptionInfo *exception) {
- Image *resize_image;
- Image *thumbnails = NewImageList();
+static Image *resize_image(Image *image, float resize_factor, ExceptionInfo *exception) {
int new_width = image->columns * resize_factor;
int new_height = image->rows * resize_factor;
- resize_image = ResizeImage(image, new_width, new_height, LanczosFilter, exception);
- printf("%zu x %zu\n", resize_image->columns, resize_image->rows);
- if(!resize_image)
+ Image *new_image = ResizeImage(image, new_width, new_height, LanczosFilter, exception);
+ if(!new_image)
MagickError(exception->severity, exception->reason, exception->description);
- AppendImageToList(&thumbnails, resize_image);
- DestroyImage(image);
-
- strcpy(thumbnails->filename, new_filename);
- WriteImage(image_info, thumbnails, exception);
-
- DestroyImageList(thumbnails);
+ return new_image;
}
static void print_pixel_info(Image *image, int x, int y, ExceptionInfo *exception) {
@@ -80,7 +73,7 @@ static void print_avg_color(Image *image, unsigned int x, int y, int width, int
/* return new_image;*/
/*}*/
-static Image *splotch(Image *image, const size_t each_width, const size_t each_height, ExceptionInfo *exception) {
+static Image *splotch_img(Image *image, const size_t each_width, const size_t each_height, ExceptionInfo *exception) {
const size_t pixel_cnt = image->columns * image->rows;
unsigned char *pixels = malloc(pixel_cnt * 3);
if(!ExportImagePixels(image, 0, 0, image->columns, image->rows, "RGB", CharPixel, pixels, exception)) {
@@ -106,57 +99,124 @@ static Image *splotch(Image *image, const size_t each_width, const size_t each_h
Image *new_image = ConstituteImage(image->columns, image->rows, "RGB", CharPixel, pixels, exception);
free(pixels);
if(!new_image)
- exit(1);
+ MagickError(exception->severity, exception->reason, exception->description);
return new_image;
}
+int usage() {
+ return 0;
+}
+
int main(int argc, char **argv) {
ExceptionInfo *exception;
- Image *images, *image;
- ImageInfo *image_info;
-/* float resize_factor = 0.0;*/
-/* char *endptr;*/
-/* if(argc == 4) {*/
-/* const char *old_locale = setlocale(LC_ALL, NULL);*/
-/* setlocale(LC_ALL|~LC_NUMERIC, "");*/
-/* resize_factor = strtof(argv[3], &endptr);*/
-/* setlocale(LC_ALL, old_locale);*/
-/* }*/
-/* if(argc < 4 || !strncmp(argv[3], endptr, strlen(argv[3])) || resize_factor < 0.0) {*/
-/* fprintf(stderr, "Usage: %s old_image new_image resize_factor\n", argv[0]);*/
-/* exit(2);*/
-/* }*/
-/* if(resize_factor > 10.0) {*/
-/* fprintf(stderr, "resize_factor %.1f is too big. Please don't break my computer.\n", resize_factor);*/
-/* exit(1);*/
-/* }*/
+ Image *input_img, *output_img = NULL;
+ char input_img_filename[400];
+ input_img_filename[0] = 0;
+ char output_img_filename[400];
+ output_img_filename[0] = 0;
+ ImageInfo *image_info, *new_image_info = NULL;
+ float resize_factor = 0.0;
+ char *endptr;
+ bool get_pixel_info = false;
+ bool resize = false;
+ bool splotch = false;
+
+ int opt;
+ while((opt=getopt(argc, argv, "hi:no:r:s")) > -1) {
+ switch(opt) {
+ case 'h':
+ return usage();
+ break;
+ case 'i':
+ strcpy(input_img_filename, optarg);
+ break;
+ case 'n':
+ if(splotch || resize) {
+ fprintf(stderr, "Please specify exactly one of: -r, -n, -s\n");
+ return 2;
+ }
+ get_pixel_info = true;
+ break;
+ case 'o':
+ strcpy(output_img_filename, optarg);
+ break;
+ case 'r':
+ if(get_pixel_info || splotch) {
+ fprintf(stderr, "Please specify exactly one of: -r, -n, -s\n");
+ return 2;
+ }
+ {
+ const char *old_locale = setlocale(LC_ALL, NULL);
+ setlocale(LC_ALL|~LC_NUMERIC, "");
+ resize_factor = strtof(optarg, &endptr);
+ setlocale(LC_ALL, old_locale);
+ }
+ if(!strncmp(optarg, endptr, strlen(optarg))) {
+ fprintf(stderr, "FATAL: Argument \"%s\" to option -r could not be parsed to a float.\n", optarg);
+ return 2;
+ }
+ // TODO implement a more robust maximum
+ if(resize_factor < 0.01 || resize_factor > 10.0) {
+ fprintf(stderr, "resize_factor %.1f is out of bounds. Should be greater than 0 and no more than 10.\n", resize_factor);
+ return 2;
+ }
+ resize = true;
+ break;
+ case 's':
+ if(get_pixel_info || resize) {
+ fprintf(stderr, "Please specify exactly one of: -r, -n, -s\n");
+ return 2;
+ }
+ splotch = true;
+ break;
+ }
+ }
+
+ if(strnlen(input_img_filename, 400) < 1) {
+ fprintf(stderr, "FATAL: no input image specified.\n");
+ return 2;
+ }
+ if((resize || splotch) && strnlen(output_img_filename, 400) < 1) {
+ fprintf(stderr, "FATAL: no output image specified.\n");
+ return 2;
+ }
MagickCoreGenesis(*argv, MagickTrue);
exception = AcquireExceptionInfo();
image_info = CloneImageInfo((ImageInfo *)NULL);
- strcpy(image_info->filename, argv[1]);
- images = ReadImage(image_info, exception);
+ strcpy(image_info->filename, input_img_filename);
+ Image *images = ReadImage(image_info, exception);
if(exception->severity != UndefinedException)
CatchException(exception);
if(!images)
- exit(1);
- image=RemoveFirstImageFromList(&images);
- if(!image)
- exit(1);
-/* resize_image(image, image_info, resize_factor, argv[2], exception);*/
-/* for(unsigned int i=0; i < image->columns; i++)*/
-/* print_pixel_info(image, i, 0, exception);*/
-/* for(unsigned int i=0; i < image->columns; i++)*/
-/* print_avg_color(image, i, 0, 1, 1, exception);*/
- Image *new_image = make_img_avg_colors(image, 0, 0, 100, 100, exception);
- ImageInfo *new_image_info = CloneImageInfo((ImageInfo *)NULL);
- strcpy(new_image->filename, argv[2]);
- WriteImage(new_image_info, new_image, exception);
+ return 1;
+ input_img = RemoveFirstImageFromList(&images);
+ if(!input_img)
+ return 1;
+
+ if(resize) {
+ output_img = resize_image(input_img, resize_factor, exception);
+ }
+/* else if(get_pixel_info) {*/
+/* for(unsigned int i=0; i < input_img->columns; i++)*/
+/* print_pixel_info(input_img, i, 0, exception);*/
+/* }*/
+/* for(unsigned int i=0; i < input_img->columns; i+=100)*/
+/* print_avg_color(input_img, i, 0, 100, 100, exception);*/
+/* Image *output_img = make_img_avg_colors(input_img, 0, 0, 6, 5, exception);*/
+ else if(splotch) {
+ output_img = splotch_img(input_img, 60, 61, exception);
+ }
- DestroyImage(image);
- DestroyImage(new_image);
+ DestroyImage(input_img);
DestroyImageInfo(image_info);
- DestroyImageInfo(new_image_info);
+ if(output_img) {
+ new_image_info = CloneImageInfo((ImageInfo *)NULL);
+ strcpy(output_img->filename, output_img_filename);
+ WriteImage(new_image_info, output_img, exception);
+ DestroyImage(output_img);
+ DestroyImageInfo(new_image_info);
+ }
DestroyExceptionInfo(exception);
MagickCoreTerminus();
return 0;
