Add Skia bindings

.travis.yml

@@ -60,6 +60,9 @@ matrix:
       - jdk: oraclejdk7
         os: linux
         env: PROJ=videoinput OS=linux-x86_64
+      - jdk: oraclejdk7
+        os: linux
+        env: PROJ=skia OS=linux-x86_64
       - os: osx
         env: PROJ=artoolkitplus OS=macosx-x86_64
       - os: osx
@@ -88,6 +91,8 @@ matrix:
         env: PROJ=tensorflow OS=macosx-x86_64
       - os: osx
         env: PROJ=videoinput OS=macosx-x86_64
+      - os: osx
+        env: PROJ=skia OS=macosx-x86_64
 
 before_install:
    #maybe this needs to go into new first job

README.md

@@ -126,6 +126,7 @@ Each child module in turn relies on its corresponding native libraries being alr
  * MXnet  https://github.com/dmlc/mxnet
  * TensorFlow 1.1.0  https://github.com/tensorflow/tensorflow
  * LiquidFun  http://google.github.io/liquidfun/
+ * Skia  https://skia.org
 
 Once everything installed and configured, simply execute
 ```bash

cppbuild.sh

@@ -116,7 +116,7 @@ function download {
 }
 
 if [[ -z ${PROJECTS:-} ]]; then
-    PROJECTS=(opencv ffmpeg flycapture libdc1394 libfreenect libfreenect2 librealsense videoinput artoolkitplus chilitags flandmark hdf5 mkl openblas fftw gsl llvm leptonica tesseract caffe cuda mxnet tensorflow liquidfun)
+    PROJECTS=(opencv ffmpeg flycapture libdc1394 libfreenect libfreenect2 librealsense videoinput artoolkitplus chilitags flandmark hdf5 mkl openblas fftw gsl llvm leptonica tesseract caffe cuda mxnet tensorflow liquidfun skia)
 fi
 
 for PROJECT in ${PROJECTS[@]}; do

platform/pom.xml

@@ -39,6 +39,7 @@
     <module>../mxnet/platform</module>
     <module>../tensorflow/platform</module>
     <module>../liquidfun/platform</module>
+    <module>../skia/platform</module>
   </modules>
 
   <dependencies>
@@ -168,6 +169,11 @@
       <artifactId>liquidfun-platform</artifactId>
       <version>20150401-0708ce1-${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.bytedeco.javacpp-presets</groupId>
+      <artifactId>skia-platform</artifactId>
+      <version>20170511-53d6729-${project.version}</version>
+    </dependency>
   </dependencies>
 
   <build>

pom.xml

@@ -61,6 +61,7 @@
     <module>mxnet</module>
     <module>tensorflow</module>
     <module>liquidfun</module>
+    <module>skia</module>
   </modules>
 
   <prerequisites>

skia/LICENSE

@@ -0,0 +1,27 @@
+// Copyright (c) 2011 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

skia/README.md

@@ -0,0 +1,128 @@
+JavaCPP Presets for Skia
+========================
+
+Introduction
+------------
+This directory contains the JavaCPP Presets module for:
+
+ * [mono/skia](https://github.com/mono/skia) branch `update-master` as of 2017-05-11  https://skia.org/
+
+Please refer to the parent README.md file for more detailed information about the JavaCPP Presets.
+
+
+Documentation
+-------------
+Java API documentation is available here:
+
+ * http://bytedeco.org/javacpp-presets/skia/apidocs/
+
+∗ Bindings are currently available only for the C API of Skia.
+
+Sample Usage
+------------
+Here is a simple example of Skia ported to Java from this C source file:
+
+ * https://github.com/mono/skia/blob/update-master/experimental/c-api-example/skia-c-example.c
+
+We can use [Maven 3](http://maven.apache.org/) to download and install automatically all the class files as well as the native binaries. To run this sample code, after creating the `pom.xml` and `src/main/java/SkiaCExample.java` source files below, simply execute on the command line:
+```bash
+ $ mvn compile exec:java
+```
+
+### The `pom.xml` build file
+```xml
+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.bytedeco.javacpp-presets.skia</groupId>
+    <artifactId>skiaexample</artifactId>
+    <version>1.3.3-SNAPSHOT</version>
+    <properties>
+        <exec.mainClass>SkiaCExample</exec.mainClass>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.bytedeco.javacpp-presets</groupId>
+            <artifactId>skia-platform</artifactId>
+            <version>20170511-53d6729-1.3.3-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+</project>
+```
+
+### The `src/main/java/SkiaCExample.java` source file
+```java
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.bytedeco.javacpp.*;
+
+import static org.bytedeco.javacpp.Skia.*;
+
+public class SkiaCExample {
+    private static sk_surface_t makeSurface(int w, int h) {
+        sk_imageinfo_t info = new sk_imageinfo_t();
+        info.width(w);
+        info.height(h);
+        info.colorType(sk_colortype_get_default_8888());
+        info.alphaType(PREMUL_SK_ALPHATYPE);
+        return sk_surface_new_raster(info, null);
+    }
+
+    private static void emitPng(String path, sk_surface_t surface) throws IOException {
+        sk_image_t image = sk_surface_new_image_snapshot(surface);
+        sk_data_t data = sk_image_encode(image);
+        sk_image_unref(image);
+        Pointer pointer = sk_data_get_data(data).limit(sk_data_get_size(data));
+        FileOutputStream out = new FileOutputStream(path);
+        out.getChannel().write(pointer.asByteBuffer());
+        out.close();
+    }
+
+    private static void draw(sk_canvas_t canvas) {
+        sk_paint_t fill = sk_paint_new();
+        sk_paint_set_color(fill, 0xFF0000FF);
+        sk_canvas_draw_paint(canvas, fill);
+
+        sk_paint_set_color(fill, 0xFF00FFFF);
+        sk_rect_t rect = new sk_rect_t();
+        rect.left(100.0f);
+        rect.top(100.0f);
+        rect.right(540.0f);
+        rect.bottom(380.0f);
+        sk_canvas_draw_rect(canvas, rect, fill);
+
+        sk_paint_t stroke = sk_paint_new();
+        sk_paint_set_color(stroke, 0xFFFF0000);
+        sk_paint_set_antialias(stroke, true);
+        sk_paint_set_style(stroke, STROKE_SK_PAINT_STYLE);
+        sk_paint_set_stroke_width(stroke, 5.0f);
+        sk_path_t path = sk_path_new();
+
+        sk_path_move_to(path, 50.0f, 50.0f);
+        sk_path_line_to(path, 590.0f, 50.0f);
+        sk_path_cubic_to(path, -490.0f, 50.0f, 1130.0f, 430.0f, 50.0f, 430.0f);
+        sk_path_line_to(path, 590.0f, 430.0f);
+        sk_canvas_draw_path(canvas, path, stroke);
+
+        sk_paint_set_color(fill, 0x8000FF00);
+        sk_rect_t rect2 = new sk_rect_t();
+        rect2.left(120.0f);
+        rect2.top(120.0f);
+        rect2.right(520.0f);
+        rect2.bottom(360.0f);
+        sk_canvas_draw_oval(canvas, rect2, fill);
+
+        sk_path_delete(path);
+        sk_paint_delete(stroke);
+        sk_paint_delete(fill);
+    }
+
+    public static void main (String[] args) throws IOException {
+        sk_surface_t surface = makeSurface(640, 480);
+        sk_canvas_t canvas = sk_surface_get_canvas(surface);
+        draw(canvas);
+        emitPng("skia-c-example.png", surface);
+        sk_surface_unref(surface);
+    }
+}
+```

skia/cppbuild.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# This file is meant to be included by the parent cppbuild.sh script
+if [[ -z "$PLATFORM" ]]; then
+    pushd ..
+    bash cppbuild.sh "$@" skia
+    popd
+    exit
+fi
+
+case $PLATFORM in
+    linux-x86)
+        export CC="gcc -m32"
+        export CXX="g++ -m32"
+        ;;
+    linux-x86_64)
+        export CC="gcc -m64"
+        export CXX="g++ -m64"
+        ;;
+    macosx-*)
+        ;;
+    *)
+        echo "Error: Platform \"$PLATFORM\" is not supported"
+        return 0
+        ;;
+esac
+
+# Must be kept in sync with skia.version in pom.xml
+SKIA_VERSION=53d672981d2f4535d61da05befa793a73103c4fd
+download "https://github.com/mono/skia/archive/$SKIA_VERSION.zip" "skia-$SKIA_VERSION.zip"
+
+if [ ! -d depot_tools ]; then
+    echo "Fetching depot_tools..."
+    git clone 'https://chromium.googlesource.com/chromium/tools/depot_tools.git' depot_tools
+fi
+export PATH="$PWD/depot_tools:$PATH"
+
+mkdir -p "$PLATFORM"
+cd "$PLATFORM"
+if [ ! -d "skia-$SKIA_VERSION" ]; then
+    echo "Decompressing archives..."
+    unzip "../skia-$SKIA_VERSION.zip"
+fi
+cd "skia-$SKIA_VERSION"
+python tools/git-sync-deps
+
+bin/gn gen out/Shared --args='is_official_build=false is_debug=false is_component_build=true extra_cflags=["-DSKIA_C_DLL"]'
+ninja -C out/Shared
+
+cd ../..

skia/platform/pom.xml

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.bytedeco</groupId>
+    <artifactId>javacpp-presets</artifactId>
+    <version>1.3.3-SNAPSHOT</version>
+    <relativePath>../../</relativePath>
+  </parent>
+
+  <groupId>org.bytedeco.javacpp-presets</groupId>
+  <artifactId>skia-platform</artifactId>
+  <version>20170511-53d6729-${project.parent.version}</version>
+  <name>JavaCPP Presets Platform for Skia</name>
+
+  <properties>
+    <javacpp.moduleId>skia</javacpp.moduleId>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>${javacpp.moduleId}</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>${javacpp.moduleId}</artifactId>
+      <version>${project.version}</version>
+      <classifier>${javacpp.platform.linux-x86}</classifier>
+    </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>${javacpp.moduleId}</artifactId>
+      <version>${project.version}</version>
+      <classifier>${javacpp.platform.linux-x86_64}</classifier>
+    </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>${javacpp.moduleId}</artifactId>
+      <version>${project.version}</version>
+      <classifier>${javacpp.platform.macosx-x86_64}</classifier>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>default-jar</id>
+            <configuration>
+              <archive>
+                <manifestEntries>
+                  <Class-Path>${javacpp.moduleId}.jar ${javacpp.moduleId}-linux-x86.jar ${javacpp.moduleId}-linux-x86_64.jar ${javacpp.moduleId}-macosx-x86_64.jar</Class-Path>
+                </manifestEntries>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>