Auto merge of #1785 - kvark:logging, r=glennw

Logging for examples

This enables logging, also makes the text drawing path of the basic example to actually work again.

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Author: bors-servo

Cargo.lock

@@ -35,6 +35,7 @@ serde_derive = { optional = true, version = "1.0" }
 
 [dev-dependencies]
 angle = {git = "https://github.com/servo/angle", branch = "servo"}
+env_logger = "0.4"
 rand = "0.3"                # for the benchmarks
 servo-glutin = "0.12"     # for the example apps
 

webrender/Cargo.toml

@@ -247,18 +247,18 @@ impl Example for App {
 
         let info = LayoutPrimitiveInfo::new((100, 100).to(200, 200));
         builder.push_border(&info, border_widths, border_details);
-
+        builder.pop_clip_id();
 
         if false {
             // draw text?
             let font_key = api.generate_font_key();
-            let font_bytes = load_file("res/FreeSans.ttf");
+            let font_bytes = load_file("../wrench/reftest/text/FreeSans.ttf");
             resources.add_raw_font(font_key, font_bytes, 0);
 
             let font_instance_key = api.generate_font_instance_key();
             resources.add_font_instance(font_instance_key, font_key, Au::from_px(32), None, None, Vec::new());
 
-            let text_bounds = (100, 200).by(700, 300);
+            let text_bounds = (100, 50).by(700, 200);
             let glyphs = vec![
                 GlyphInstance {
                     index: 48,
@@ -344,7 +344,6 @@ impl Example for App {
             );
         }
 
-        builder.pop_clip_id();
         builder.pop_stacking_context();
     }
 

webrender/examples/basic.rs

@@ -2,6 +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/. */
 
+extern crate env_logger;
+
 use gleam::gl;
 use glutin;
 use std::env;
@@ -77,6 +79,8 @@ pub trait Example {
 }
 
 pub fn main_wrapper(example: &mut Example, options: Option<webrender::RendererOptions>) {
+    env_logger::init().unwrap();
+
     let args: Vec<String> = env::args().collect();
     let res_path = if args.len() > 1 {
         Some(PathBuf::from(&args[1]))