Subversion Repositories RepoView

/* $Id: magick.c 42 2024-08-22 05:25:09Z nishi $ */

#include "rv_magick.h"

#include "rv_util.h"

#include "../config.h"

#include <stdio.h>
#include <stdbool.h>

#include <wand/magick_wand.h>

void rv_init_magick(void) {}

bool rv_resize_picture(const char* input, const char* output, char** reason) {
        MagickWand* wand = NULL;
        wand = NewMagickWand();
        if(MagickReadImage(wand, input)) {
                int width = MagickGetImageWidth(wand);
                int height = MagickGetImageHeight(wand);

                double scale = 0;
                if(width >= height) {
                        scale = (double)256 / width;
                } else if(width < height) {
                        scale = (double)256 / height;
                }

                MagickResizeImage(wand, width * scale, height * scale, LanczosFilter, 1);
                MagickSetCompressionQuality(wand, 80);
                MagickWriteImage(wand, output);

                if(wand) DestroyMagickWand(wand);
                return true;
        }
        if(wand) DestroyMagickWand(wand);
        *reason = rv_strdup("Magick error");
        return false;
}