Replace libpng with image everywhere.

components/compositing/Cargo.toml

@@ -52,10 +52,6 @@ git = "https://github.com/servo/rust-azure"
 [dependencies.layers]
 git = "https://github.com/servo/rust-layers"
 
-[dependencies.png]
-git = "https://github.com/servo/rust-png"
-features = [ "serde-serialization" ]
-
 [dependencies.clipboard]
 git = "https://github.com/aweinstock314/rust-clipboard"
 
@@ -72,6 +68,7 @@ features = [ "serde_serialization" ]
 
 [dependencies]
 app_units = "0.1"
+image = "0.3.14"
 log = "0.3"
 num = "0.1.24"
 time = "0.1.17"

components/compositing/compositor.rs

@@ -16,7 +16,8 @@ use gfx::paint_task::{ChromeToPaintMsg, PaintRequest};
 use gfx_traits::color;
 use gleam::gl;
 use gleam::gl::types::{GLint, GLsizei};
-use ipc_channel::ipc;
+use image::{DynamicImage, ImageFormat, RgbImage};
+use ipc_channel::ipc::{self, IpcSharedMemory};
 use ipc_channel::router::ROUTER;
 use layers::geometry::{DevicePixel, LayerPixel};
 use layers::layers::{BufferRequest, Layer, LayerBuffer, LayerBufferSet};
@@ -27,18 +28,18 @@ use layers::scene::Scene;
 use layout_traits::LayoutControlChan;
 use msg::compositor_msg::{Epoch, FrameTreeId, LayerId, LayerKind};
 use msg::compositor_msg::{LayerProperties, ScrollPolicy};
-use msg::constellation_msg::AnimationState;
 use msg::constellation_msg::Msg as ConstellationMsg;
+use msg::constellation_msg::{AnimationState, Image, PixelFormat};
 use msg::constellation_msg::{ConstellationChan, Key, KeyModifiers, KeyState, LoadData};
 use msg::constellation_msg::{NavigationDirection, PipelineId, WindowSizeData};
 use pipeline::CompositionPipeline;
-use png;
 use profile_traits::mem::{self, ReportKind, Reporter, ReporterRequest};
 use profile_traits::time::{self, ProfilerCategory, profile};
 use script_traits::{ConstellationControlMsg, LayoutControlMsg};
 use scrolling::ScrollingTimerProxy;
 use std::collections::hash_map::Entry::{Occupied, Vacant};
 use std::collections::{HashMap, HashSet};
+use std::fs::File;
 use std::mem as std_mem;
 use std::rc::Rc;
 use std::slice::bytes::copy_memory;
@@ -1521,7 +1522,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
     /// for some reason. If CompositeTarget is Window or Png no image data is returned;
     /// in the latter case the image is written directly to a file. If CompositeTarget
     /// is WindowAndPng Ok(Some(png::Image)) is returned.
-    pub fn composite_specific_target(&mut self, target: CompositeTarget) -> Result<Option<png::Image>, ()> {
+    pub fn composite_specific_target(&mut self, target: CompositeTarget) -> Result<Option<Image>, ()> {
 
         if !self.context.is_some() {
             return Err(())
@@ -1573,13 +1574,19 @@ impl<Window: WindowMethods> IOCompositor<Window> {
         let rv = match target {
             CompositeTarget::Window => None,
             CompositeTarget::WindowAndPng => {
-                Some(self.draw_png(framebuffer_ids, texture_ids, width, height))
+                let img = self.draw_img(framebuffer_ids, texture_ids, width, height);
+                Some(Image {
+                    width: img.width(),
+                    height: img.height(),
+                    format: PixelFormat::RGB8,
+                    bytes: IpcSharedMemory::from_bytes(&*img),
+                })
             }
             CompositeTarget::PngFile => {
-                let mut img = self.draw_png(framebuffer_ids, texture_ids, width, height);
+                let img = self.draw_img(framebuffer_ids, texture_ids, width, height);
                 let path = opts::get().output_file.as_ref().unwrap();
-                let res = png::store_png(&mut img, &path);
+                let mut file = File::create(path).unwrap();
-                assert!(res.is_ok(), format!("Error writing png: {}", res.unwrap_err()));
+                DynamicImage::ImageRgb8(img).save(&mut file, ImageFormat::PNG).unwrap();
                 None
             }
         };
@@ -1596,12 +1603,12 @@ impl<Window: WindowMethods> IOCompositor<Window> {
         Ok(rv)
     }
 
-    fn draw_png(&self,
+    fn draw_img(&self,
                 framebuffer_ids: Vec<gl::GLuint>,
                 texture_ids: Vec<gl::GLuint>,
                 width: usize,
                 height: usize)
-                -> png::Image {
+                -> RgbImage {
         let mut pixels = gl::read_pixels(0, 0,
                                          width as gl::GLsizei,
                                          height as gl::GLsizei,
@@ -1622,11 +1629,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
             copy_memory(&src_slice[..stride],
                         &mut pixels[dst_start .. dst_start + stride]);
         }
-        png::Image {
+        RgbImage::from_raw(width as u32, height as u32, pixels).unwrap()
-            width: width as u32,
-            height: height as u32,
-            pixels: png::PixelsByColorType::RGB8(pixels),
-        }
     }
 
     fn composite_if_necessary(&mut self, reason: CompositingReason) {

components/compositing/compositor_task.rs

@@ -13,8 +13,7 @@ use layers::platform::surface::{NativeDisplay, NativeSurface};
 use msg::compositor_msg::{Epoch, FrameTreeId, LayerId, LayerProperties};
 use msg::compositor_msg::{PaintListener, ScriptToCompositorMsg};
 use msg::constellation_msg::{AnimationState, ConstellationChan, PipelineId};
-use msg::constellation_msg::{Key, KeyModifiers, KeyState};
+use msg::constellation_msg::{Image, Key, KeyModifiers, KeyState};
-use png;
 use profile_traits::mem;
 use profile_traits::time;
 use std::fmt::{Debug, Error, Formatter};
@@ -193,7 +192,7 @@ pub enum Msg {
     /// Changes the cursor.
     SetCursor(Cursor),
     /// Composite to a PNG file and return the Image over a passed channel.
-    CreatePng(IpcSender<Option<png::Image>>),
+    CreatePng(IpcSender<Option<Image>>),
     /// Informs the compositor that the paint task for the given pipeline has exited.
     PaintTaskExited(PipelineId),
     /// Alerts the compositor that the viewport has been constrained in some manner

components/compositing/lib.rs

@@ -33,6 +33,7 @@ extern crate euclid;
 extern crate gfx;
 extern crate gfx_traits;
 extern crate gleam;
+extern crate image;
 extern crate ipc_channel;
 extern crate layers;
 extern crate layout_traits;
@@ -40,7 +41,6 @@ extern crate msg;
 extern crate net_traits;
 extern crate num;
 extern crate offscreen_gl_context;
-extern crate png;
 extern crate script_traits;
 extern crate style_traits;
 extern crate time;

components/msg/Cargo.toml

@@ -22,10 +22,6 @@ git = "https://github.com/servo/rust-azure"
 [dependencies.layers]
 git = "https://github.com/servo/rust-layers"
 
-[dependencies.png]
-git = "https://github.com/servo/rust-png"
-features = [ "serde-serialization" ]
-
 [dependencies.hyper]
 version = "0.6"
 features = [ "serde-serialization" ]

components/msg/constellation_msg.rs

@@ -11,10 +11,9 @@ use euclid::scale_factor::ScaleFactor;
 use euclid::size::{Size2D, TypedSize2D};
 use hyper::header::Headers;
 use hyper::method::Method;
-use ipc_channel::ipc::IpcSender;
+use ipc_channel::ipc::{IpcSender, IpcSharedMemory};
 use layers::geometry::DevicePixel;
 use offscreen_gl_context::GLContextAttributes;
-use png::Image;
 use std::cell::Cell;
 use std::collections::HashMap;
 use std::fmt;
@@ -372,7 +371,24 @@ pub enum WebDriverCommandMsg {
     LoadUrl(PipelineId, LoadData, IpcSender<LoadStatus>),
     Refresh(PipelineId, IpcSender<LoadStatus>),
     ScriptCommand(PipelineId, WebDriverScriptCommand),
-    TakeScreenshot(PipelineId, IpcSender<Option<Image>>)
+    TakeScreenshot(PipelineId, IpcSender<Option<Image>>),
+}
+
+#[derive(Deserialize, Eq, PartialEq, Serialize, HeapSizeOf)]
+pub enum PixelFormat {
+    K8,         // Luminance channel only
+    KA8,        // Luminance + alpha
+    RGB8,       // RGB, 8 bits per channel
+    RGBA8,      // RGB + alpha, 8 bits per channel
+}
+
+#[derive(Deserialize, Serialize, HeapSizeOf)]
+pub struct Image {
+    pub width: u32,
+    pub height: u32,
+    pub format: PixelFormat,
+    #[ignore_heap_size_of = "Defined in ipc-channel"]
+    pub bytes: IpcSharedMemory,
 }
 
 /// Similar to net::resource_task::LoadData

components/msg/lib.rs

@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#![feature(custom_derive, plugin)]
+#![feature(custom_attribute, custom_derive, plugin)]
 #![plugin(serde_macros, plugins)]
 
 extern crate app_units;
@@ -19,7 +19,6 @@ extern crate io_surface;
 extern crate ipc_channel;
 extern crate layers;
 extern crate offscreen_gl_context;
-extern crate png;
 extern crate rustc_serialize;
 extern crate serde;
 extern crate style_traits;

components/net/Cargo.toml

@@ -19,10 +19,6 @@ path = "../devtools_traits"
 [dependencies.plugins]
 path = "../plugins"
 
-[dependencies.png]
-git = "https://github.com/servo/rust-png"
-features = [ "serde-serialization" ]
-
 [dependencies.hyper]
 version = "0.6"
 features = [ "serde-serialization" ]

components/net/lib.rs

@@ -21,7 +21,6 @@ extern crate hyper;
 extern crate ipc_channel;
 extern crate net_traits;
 extern crate openssl;
-extern crate png;
 extern crate rustc_serialize;
 extern crate time;
 extern crate url;

components/net_traits/image/base.rs

@@ -5,30 +5,13 @@
 use ipc_channel::ipc::IpcSharedMemory;
 use piston_image::{self, DynamicImage, GenericImage};
 use stb_image::image as stb_image2;
-use std::error::Error;
-use util::mem::HeapSizeOf;
 use util::vec::byte_swap;
 
+pub use msg::constellation_msg::{Image, PixelFormat};
+
 // FIXME: Images must not be copied every frame. Instead we should atomically
 // reference count them.
 
-#[derive(Deserialize, Serialize, HeapSizeOf)]
-pub enum PixelFormat {
-    K8,         // Luminance channel only
-    KA8,        // Luminance + alpha
-    RGB8,       // RGB, 8 bits per channel
-    RGBA8,      // RGB + alpha, 8 bits per channel
-}
-
-#[derive(Deserialize, Serialize, HeapSizeOf)]
-pub struct Image {
-    pub width: u32,
-    pub height: u32,
-    pub format: PixelFormat,
-    #[ignore_heap_size_of = "Defined in ipc-channel"]
-    pub bytes: IpcSharedMemory,
-}
-
 // TODO(pcwalton): Speed up with SIMD, or better yet, find some way to not do this.
 fn byte_swap_and_premultiply(data: &mut [u8]) {
     let length = data.len();

components/net_traits/image_cache_task.rs

@@ -2,8 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use image::base::Image;
 use ipc_channel::ipc::{self, IpcSender};
+use msg::constellation_msg::Image;
 use std::sync::Arc;
 use url::Url;
 use util::mem::HeapSizeOf;

components/servo/Cargo.lock

@@ -15,6 +15,7 @@ dependencies = [
  "gfx_tests 0.0.1",
  "gleam 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "glutin_app 0.0.1",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "layout 0.0.1",
  "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -22,7 +23,6 @@ dependencies = [
  "net 0.0.1",
  "net_tests 0.0.1",
  "net_traits 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile 0.0.1",
  "profile_traits 0.0.1",
  "script 0.0.1",
@@ -260,6 +260,7 @@ dependencies = [
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "gleam 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "layout_traits 0.0.1",
@@ -269,7 +270,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
  "style_traits 0.0.1",
@@ -1164,7 +1164,6 @@ dependencies = [
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1187,7 +1186,6 @@ dependencies = [
  "net_traits 0.0.1",
  "openssl 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "regex 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex_macros 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1380,18 +1378,6 @@ dependencies = [
  "tempdir 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png"
-version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "gcc 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
- "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "png"
 version = "0.3.1"
@@ -1403,14 +1389,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png-sys"
-version = "1.6.16"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "libz-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "profile"
 version = "0.0.1"
@@ -2011,11 +1989,11 @@ name = "webdriver_server"
 version = "0.0.1"
 dependencies = [
  "hyper 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "log 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "regex 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",

components/servo/Cargo.toml

@@ -16,6 +16,9 @@ test = false
 doc = false
 bench = false
 
+[dev-dependencies]
+image = "0.3.14"
+
 [dev-dependencies.gfx_tests]
 path = "../../tests/unit/gfx"
 
@@ -36,10 +39,6 @@ name = "reftest"
 path = "../../tests/reftest.rs"
 harness = false
 
-[dependencies.png]
-git = "https://github.com/servo/rust-png"
-features = [ "serde-serialization" ]
-
 [features]
 default = ["glutin_app", "window", "webdriver"]
 window = ["glutin_app/window"]

components/webdriver_server/Cargo.toml

@@ -19,10 +19,6 @@ path = "../util"
 [dependencies.webdriver]
 git = "https://github.com/jgraham/webdriver-rust.git"
 
-[dependencies.png]
-git = "https://github.com/servo/rust-png"
-features = [ "serde-serialization" ]
-
 [dependencies.ipc-channel]
 git = "https://github.com/pcwalton/ipc-channel"
 
@@ -31,6 +27,7 @@ version = "0.2"
 features = [ "serde_serialization" ]
 
 [dependencies]
+image = "0.3.14"
 log = "0.3"
 hyper = "0.6"
 rustc-serialize = "0.3.4"

components/webdriver_server/lib.rs

@@ -11,9 +11,9 @@
 #[macro_use]
 extern crate log;
 extern crate hyper;
+extern crate image;
 extern crate ipc_channel;
 extern crate msg;
-extern crate png;
 extern crate regex;
 extern crate rustc_serialize;
 extern crate url;
@@ -22,10 +22,11 @@ extern crate uuid;
 extern crate webdriver;
 
 use hyper::method::Method::{self, Post};
+use image::{DynamicImage, ImageFormat, RgbImage};
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use msg::constellation_msg::Msg as ConstellationMsg;
 use msg::constellation_msg::{ConstellationChan, FrameId, LoadData, PipelineId};
-use msg::constellation_msg::{NavigationDirection, WebDriverCommandMsg};
+use msg::constellation_msg::{NavigationDirection, PixelFormat, WebDriverCommandMsg};
 use msg::webdriver_msg::{LoadStatus, WebDriverFrameId, WebDriverJSError, WebDriverJSResult, WebDriverScriptCommand};
 use regex::Captures;
 use rustc_serialize::base64::{CharacterSet, Config, Newline, ToBase64};
@@ -615,24 +616,26 @@ impl Handler {
             sleep_ms(interval)
         }
 
-        let mut img = match img {
+        let img = match img {
             Some(img) => img,
             None => return Err(WebDriverError::new(ErrorStatus::Timeout,
                                                    "Taking screenshot timed out")),
         };
 
-        let img_vec = match png::to_vec(&mut img) {
+        // The compositor always sends RGB pixels.
-            Ok(x) => x,
+        assert!(img.format == PixelFormat::RGB8, "Unexpected screenshot pixel format");
-            Err(_) => return Err(WebDriverError::new(ErrorStatus::UnknownError,
+        let rgb = RgbImage::from_raw(img.width, img.height, img.bytes.to_vec()).unwrap();
-                                                     "Taking screenshot failed"))
+
-        };
+        let mut png_data = Vec::new();
+        DynamicImage::ImageRgb8(rgb).save(&mut png_data, ImageFormat::PNG).unwrap();
+
         let config = Config {
             char_set: CharacterSet::Standard,
             newline: Newline::LF,
             pad: true,
             line_length: None
         };
-        let encoded = img_vec.to_base64(config);
+        let encoded = png_data.to_base64(config);
         Ok(WebDriverResponse::Generic(ValueResponse::new(encoded.to_json())))
     }
 

ports/cef/Cargo.lock

@@ -251,6 +251,7 @@ dependencies = [
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "gleam 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "layout_traits 0.0.1",
@@ -260,7 +261,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
  "style_traits 0.0.1",
@@ -1114,7 +1114,6 @@ dependencies = [
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1137,7 +1136,6 @@ dependencies = [
  "net_traits 0.0.1",
  "openssl 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "regex 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex_macros 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1314,18 +1312,6 @@ dependencies = [
  "tempdir 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png"
-version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "gcc 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
- "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "png"
 version = "0.3.1"
@@ -1337,14 +1323,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png-sys"
-version = "1.6.16"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "libz-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "profile"
 version = "0.0.1"
@@ -1581,7 +1559,6 @@ dependencies = [
  "msg 0.0.1",
  "net 0.0.1",
  "net_traits 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile 0.0.1",
  "profile_traits 0.0.1",
  "script 0.0.1",
@@ -1942,11 +1919,11 @@ name = "webdriver_server"
 version = "0.0.1"
 dependencies = [
  "hyper 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "log 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "regex 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",

ports/gonk/Cargo.lock

@@ -222,6 +222,7 @@ dependencies = [
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "gleam 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "layout_traits 0.0.1",
@@ -231,7 +232,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
  "style_traits 0.0.1",
@@ -985,7 +985,6 @@ dependencies = [
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "offscreen_gl_context 0.1.0 (git+https://github.com/ecoal95/rust-offscreen-rendering-context)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1008,7 +1007,6 @@ dependencies = [
  "net_traits 0.0.1",
  "openssl 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "regex 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex_macros 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1176,18 +1174,6 @@ dependencies = [
  "tempdir 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png"
-version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "gcc 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
- "serde 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_macros 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "png"
 version = "0.3.1"
@@ -1199,14 +1185,6 @@ dependencies = [
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "png-sys"
-version = "1.6.16"
-source = "git+https://github.com/servo/rust-png#b8c2bf074719e5a39b9e4423989f5f06fa79317d"
-dependencies = [
- "libz-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "profile"
 version = "0.0.1"
@@ -1442,7 +1420,6 @@ dependencies = [
  "msg 0.0.1",
  "net 0.0.1",
  "net_traits 0.0.1",
- "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "profile 0.0.1",
  "profile_traits 0.0.1",
  "script 0.0.1",

python/tidy.py

@@ -151,8 +151,7 @@ def check_lock(file_name, contents):
     packages = {}
 
     # package names to be neglected (as named by cargo)
-    # - `png` is used by PistonDevelopers/image-png and servo/rust-png
+    exceptions = ["glutin", "wayland-kbd"]
-    exceptions = ["glutin", "wayland-kbd", "png"]
 
     while idx < len(contents):
         content = contents[idx].strip()

tests/reftest.rs

@@ -13,11 +13,12 @@
 #![feature(test)]
 
 #[macro_use] extern crate bitflags;
-extern crate png;
+extern crate image;
 extern crate test;
 extern crate url;
 extern crate util;
 
+use image::{DynamicImage, GenericImage, ImageFormat, RgbImage};
 use std::env;
 use std::ffi::OsStr;
 use std::fs::{PathExt, File, walk_dir};
@@ -334,12 +335,12 @@ fn capture(reftest: &Reftest, side: usize) -> (u32, u32, Vec<u8>) {
 
     assert!(exit_status.success());
 
-    let image = png::load_png(&png_filename).unwrap();
+    let image = match image::open(&png_filename) {
-    let rgba8_bytes = match image.pixels {
+        Ok(DynamicImage::ImageRgb8(image)) => image,
-        png::PixelsByColorType::RGBA8(pixels) => pixels,
+        Ok(image) => image.to_rgb(),
         _ => panic!(),
     };
-    (image.width, image.height, rgba8_bytes)
+    (image.width(), image.height(), image.into_raw())
 }
 
 fn servo_path() -> PathBuf {
@@ -379,14 +380,9 @@ fn check_reftest(reftest: Reftest) {
 
     if pixels.iter().any(|&a| a < 255) {
         let output = format!("/tmp/servo-reftest-{:06}-diff.png", reftest.id);
-
+        let mut file = File::create(&output).unwrap();
-        let mut img = png::Image {
+        let img_buf = RgbImage::from_raw(left_width, left_height, pixels).expect("foo");
-            width: left_width,
+        DynamicImage::ImageRgb8(img_buf).save(&mut file, ImageFormat::PNG).unwrap();
-            height: left_height,
-            pixels: png::PixelsByColorType::RGBA8(pixels),
-        };
-        let res = png::store_png(&mut img, &output);
-        assert!(res.is_ok());
 
         match (reftest.kind, reftest.is_flaky) {
             (ReftestKind::Same, true) => println!("flaky test - rendering difference: {}", output),