Initialize pointers at runtime

README.md

@@ -49,14 +49,14 @@ some of your workarounds might interfere with the new approach. You can reset yo
 
 ```julia
 using Homebrew
-run(`brew remove imagemagick@6`)
-run(`brew prune`)
+Homebrew.rm("imagemagick@6")
+Homebrew.brew(`prune`)
 Pkg.build("ImageMagick")
 ```
 
 You may also find [debugging
 Homebrew](https://github.com/JuliaLang/Homebrew.jl/wiki/Debugging-Homebrew.jl)
-useful. 
+useful.
 
 Finally, an alternative to ImageMagick on OS X is
 [QuartzImageIO](https://github.com/JuliaIO/QuartzImageIO.jl).

deps/build.jl

@@ -15,116 +15,78 @@ libwand     = library_dependency("libwand", aliases = aliases)
 
 mpath = get(ENV, "MAGICK_HOME", "") # If MAGICK_HOME is defined, add to library search path
 if !isempty(mpath)
-    init_fun =
-        """
-        function init_deps()
-            ccall((:MagickWandGenesis, libwand), Void, ())
-        end
-        """
-
-    provides(Binaries, mpath, libwand, preload = init_fun, onload = "init_deps()")
-    provides(Binaries, joinpath(mpath, "lib"), libwand, preload = init_fun, onload = "init_deps()")
+    provides(Binaries, mpath, libwand)
+    provides(Binaries, joinpath(mpath, "lib"), libwand)
 end
 
 
 if is_linux()
-    init_fun =
-        """
-        function init_deps()
-            ccall((:MagickWandGenesis, libwand), Void, ())
-        end
-        """
-
-    provides(AptGet, "libmagickwand4", libwand, preload = init_fun, onload = "init_deps()")
-    provides(AptGet, "libmagickwand5", libwand, preload = init_fun, onload = "init_deps()")
-    provides(AptGet, "libmagickwand-6.q16-2", libwand, preload = init_fun, onload = "init_deps()")
-    provides(Pacman, "imagemagick", libwand, preload = init_fun, onload = "init_deps()")
-    provides(Yum, "ImageMagick", libwand, preload = init_fun, onload = "init_deps()")
+    provides(AptGet, "libmagickwand4", libwand)
+    provides(AptGet, "libmagickwand5", libwand)
+    provides(AptGet, "libmagickwand-6.q16-2", libwand)
+    provides(Pacman, "imagemagick", libwand)
+    provides(Yum, "ImageMagick", libwand)
 end
 
 
 if is_windows()
     push!(BinDeps.defaults, BuildProcess) # TODO: remove me when upstream is fixed
 
-    const OS_ARCH = Sys.WORD_SIZE == 64 ? "x64" : "x86"
+    OS_ARCH = Sys.WORD_SIZE == 64 ? "x64" : "x86"
 
     # TODO: checksums: we have gpg
     # Extract the appropriate filename to download
     magick_base = "http://www.imagemagick.org/download/binaries"
     binariesfn  = download(magick_base)
     str         = readstring(binariesfn)
     pattern     = "ImageMagick-6.9.*?-Q16-$(OS_ARCH)-dll.exe"
-    m           = match(Regex(pattern), str)
-    magick_exe  = convert(String, m.match)
-
-    magick_tmpdir   = BinDeps.downloadsdir(libwand)
-    magick_url      = "$(magick_base)/$(magick_exe)"
-    magick_libdir   = joinpath(BinDeps.libdir(libwand), OS_ARCH)
-    innounp_url     = "https://bintray.com/artifact/download/julialang/generic/innounp.exe"
-    init_fun         =
+    magick_exe  = String(match(Regex(pattern), str).match)
+
+    magick_tmpdir = BinDeps.downloadsdir(libwand)
+    magick_url    = "$(magick_base)/$(magick_exe)"
+    magick_installdir = joinpath(BinDeps.libdir(libwand), OS_ARCH)
+    magick_libdir = joinpath(magick_installdir, "{app}")
+    innounp_url   = "https://bintray.com/artifact/download/julialang/generic/innounp.exe"
+    preloads      =
         """
-        function init_deps()
-            ENV["MAGICK_CONFIGURE_PATH"]    = \"$(escape_string(magick_libdir))\"
-            ENV["MAGICK_CODER_MODULE_PATH"] = \"$(escape_string(magick_libdir))\"
+        function initenv()
+            ENV["MAGICK_CONFIGURE_PATH"]     = "$(escape_string(magick_libdir))"
+            ENV["MAGICK_CODER_MODULE_PATH"]  = "$(escape_string(joinpath(magick_libdir, "modules", "coders")))"
+            ENV["MAGICK_FILTER_MODULE_PATH"] = "$(escape_string(joinpath(magick_libdir, "modules", "filters")))"
+            ENV["PATH"]                      = "$(escape_string(magick_libdir * ";"))" * ENV["PATH"]
         end
         """
 
     provides(BuildProcess,
         (@build_steps begin
-            CreateDirectory(magick_tmpdir)
-            CreateDirectory(magick_libdir)
             FileDownloader(magick_url, joinpath(magick_tmpdir, magick_exe))
             FileDownloader(innounp_url, joinpath(magick_tmpdir, "innounp.exe"))
             @build_steps begin
                 ChangeDirectory(magick_tmpdir)
-                info("Installing ImageMagick library")
-                `innounp.exe -q -y -b -e -x -d$(magick_libdir) $(magick_exe)`
+                `innounp.exe -q -y -b -x -d$(magick_installdir) $(magick_exe)`
             end
         end),
-        libwand, os = :Windows, unpacked_dir = magick_libdir, preload = init_fun,
-        onload = "init_deps()")
+        libwand, os = :Windows, unpacked_dir = magick_libdir, preload = preloads)
 end
 
 
 if is_apple()
     using Homebrew
-    imagemagick_prefix = Homebrew.prefix("staticfloat/juliadeps/imagemagick@6")
-    init_fun =
+    homebrew_prefix = Homebrew.prefix()
+    preloads =
         """
-        function init_deps()
-            ENV["MAGICK_CONFIGURE_PATH"] = joinpath("$(imagemagick_prefix)",
-                                                    "lib", "ImageMagick", "config-Q16")
-            ENV["MAGICK_CODER_MODULE_PATH"] = joinpath("$(imagemagick_prefix)",
-                                                       "lib", "ImageMagick", "modules-Q16", "coders")
-            ENV["PATH"] = joinpath("$(imagemagick_prefix)", "bin") * ":" * ENV["PATH"]
-
-            ccall((:MagickWandGenesis,libwand), Void, ())
+        function initenv()
+            ENV["MAGICK_CONFIGURE_PATH"]     = "$(escape_string(joinpath(homebrew_prefix, "opt", "imagemagick@6", "lib", "ImageMagick", "config-Q16")))"
+            ENV["MAGICK_CODER_MODULE_PATH"]  = "$(escape_string(joinpath(homebrew_prefix, "opt", "imagemagick@6", "lib", "ImageMagick", "modules-Q16", "coders")))"
+            ENV["MAGICK_FILTER_MODULE_PATH"] = "$(escape_string(joinpath(homebrew_prefix, "opt", "imagemagick@6", "lib", "ImageMagick", "modules-Q16", "filters")))"
+            ENV["PATH"]                      = "$(escape_string(joinpath(homebrew_prefix, "opt", "imagemagick@6", "bin") * ":"))" * ENV["PATH"]
         end
         """
-    provides(Homebrew.HB, "staticfloat/juliadeps/imagemagick@6", libwand, os = :Darwin,
-             preload = init_fun, onload = "init_deps()")
+    provides(Homebrew.HB, "homebrew/core/imagemagick@6", libwand, os = :Darwin, preload = preloads)
 end
 
 
 @BinDeps.install Dict([(:libwand, :libwand)])
 
-# Hack-fix for issue #12
-# Check to see whether init_deps is present, and if not add it
-if isempty(search(readstring(joinpath(dirname(@__FILE__),"deps.jl")), "init_deps"))
-    open("deps.jl", "a") do io
-        write(io, init_fun)
-    end
-end
-
-module CheckVersion
-    include("deps.jl")
-    p = ccall((:MagickQueryConfigureOption, libwand), Ptr{UInt8}, (Ptr{UInt8}, ),
-              "LIB_VERSION_NUMBER")
-    vstr = string("v\"", join(split(unsafe_string(p), ',')[1:3], '.'), "\"")
-    open(joinpath(dirname(@__FILE__), "versioninfo.jl"), "w") do file
-        write(file, "const libversion = $vstr\n")
-    end
-end
-
 
 is_windows() && pop!(BinDeps.defaults)

src/ImageMagick.jl

@@ -19,7 +19,7 @@ include("libmagickwand.jl")
 
 # Image / Video formats
 
-image_formats = [
+const image_formats = [
     format"BMP",
     format"AVI",
     format"CRW",
@@ -152,7 +152,7 @@ function image2wand(img, mapi=identity, quality=nothing, permute_horizontal=true
     T = eltype(imgw)
     channelorder = T<:Real ? "Gray" : ColorTypes.colorant_string(T)
     if T <: Union{RGB,RGBA,ARGB,BGRA,ABGR}
-        cs = libversion > v"6.7.5" ? "sRGB" : "RGB"
+        cs = getlibversion() > v"6.7.5" ? "sRGB" : "RGB"
     else
         cs = channelorder
     end