move to graphicsmagick

build.zig

@@ -10,17 +10,11 @@ pub fn build(b: *Builder) void {
     exe.linkSystemLibrary("sndfile");
     exe.linkSystemLibrary("c");
 
-    // magick libraries
-    exe.linkSystemLibrary("MagickWand-7.Q16HDRI");
-    exe.linkSystemLibrary("MagickCore-7.Q16HDRI");
-
-    //exe.addArgs([_]u8{
-    //    "-DMAGICKCORE_HDRI_ENABLE=1",
-    //    "-DMAGICKCORE_QUANTUM_DEPTH=16",
-    //});
+    exe.linkSystemLibrary("GraphicsMagickWand");
+    exe.linkSystemLibrary("GraphicsMagick");
 
     exe.addIncludeDir("/usr/include/lilv-0");
-    exe.addIncludeDir("/usr/include/ImageMagick-7");
+    exe.addIncludeDir("/usr/include/GraphicsMagick");
 
     const run_cmd = exe.run();
     run_cmd.step.dependOn(b.getInstallStep());

src/image.zig

@@ -340,7 +340,7 @@ pub const Image = struct {
     }
 
     pub fn saveTo(self: *Image, out_path: []const u8) !void {
-        std.debug.warn("saved to '{}'\n", out_path);
+        std.debug.warn("\timg: copy from '{}' to '{}'\n", self.curpath, out_path);
         try std.fs.copyFile(self.curpath, out_path);
     }
 

src/magick.zig

@@ -4,15 +4,13 @@ const images = @import("image.zig");
 
 const Image = images.Image;
 
-const mc = @cImport({
-    @cInclude("MagickWand/MagickWand.h");
-});
+const mc = @import("magick_wand.zig");
 
 pub const MagickContext = struct {
     wand: *mc.MagickWand,
 
     pub fn init() !MagickContext {
-        mc.MagickWandGenesis();
+        mc.InitializeMagick(null);
 
         var wand = mc.NewMagickWand();
         if (wand == null) return error.WandCreateFail;
@@ -24,7 +22,7 @@ pub const MagickContext = struct {
 
     pub fn deinit(self: *MagickContext) void {
         _ = mc.DestroyMagickWand(self.wand);
-        mc.MagickWandTerminus();
+        mc.DestroyMagick();
     }
 
     pub fn doErr(self: *MagickContext) !void {
@@ -39,7 +37,9 @@ fn magickLoad(image: *Image) !MagickContext {
     var curpath = try std.cstr.addNullByte(image.allocator, image.curpath);
     defer image.allocator.free(curpath);
 
-    if (mc.MagickReadImage(mctx.wand, curpath.ptr) == .MagickFalse)
+    std.debug.warn("loading '{}'\n", curpath);
+
+    if (mc.MagickReadImage(mctx.wand, curpath.ptr) != 1)
         return error.MagickReadFail;
 
     return mctx;
@@ -58,7 +58,7 @@ fn magickSave(image: *Image, mctx: *MagickContext) !void {
         c_tmpnam,
     );
 
-    if (mc.MagickWriteImages(mctx.wand, c_tmpnam.ptr, .MagickTrue) == .MagickFalse)
+    if (mc.MagickWriteImage(mctx.wand, c_tmpnam.ptr) != 1)
         return error.MagickWriteFail;
 }
 
@@ -66,7 +66,14 @@ pub fn runRotate(image: *Image) !void {
     var mctx = try magickLoad(image);
     defer mctx.deinit();
 
-    // TODO run rotate here
+    var bg = mc.NewPixelWand().?;
+    defer mc.DestroyPixelWand(bg);
+
+    if (mc.PixelSetColor(bg, c"#ffffff") != 1)
+        return error.PixelSetColorFail;
+
+    if (mc.MagickRotateImage(mctx.wand, bg, 30) != 1)
+        return error.RotateFail;
 
     try magickSave(image, &mctx);
 }