OpenGLES conversion

.travis.yml

@@ -1,9 +1,3 @@
 language: rust
-before_install:
-  - sudo add-apt-repository ppa:team-xbmc/ppa -y
-  - sudo apt-get update -qq
-install:
-  - sudo apt-get install libsdl2-dev
 script:
-  - cargo test -v
-  - cargo doc -v
+  - cargo build -v

Cargo.toml

@@ -1,7 +1,6 @@
 [package]
-
-name = "piston2d-opengl_graphics"
-version = "0.40.0"
+name = "opengles_graphics"
+version = "0.1.1"
 authors = [
     "bvssvni <[email protected]>",
     "Coeuvre <[email protected]>",
@@ -12,24 +11,25 @@ authors = [
     "Apointos",
     "ccgn",
     "reem",
-    "TyOverby <[email protected]>"
+    "TyOverby <[email protected]>",
+    "Victor Brekenfeld <[email protected]>"
 ]
-keywords = ["opengl", "graphics", "2d", "piston"]
-description = "An OpenGL 2D back-end for the Piston game engine"
+keywords = ["opengles", "graphics", "2d", "piston"]
+description = "An OpenGL ES 2D back-end for the Piston game engine"
 license = "MIT"
 readme = "README.md"
-repository = "https://github.com/PistonDevelopers/opengl_graphics.git"
-homepage = "https://github.com/PistonDevelopers/opengl_graphics"
+repository = "https://github.com/Drakulix/opengles_graphics.git"
+homepage = "https://github.com/Drakulix/opengles_graphics"
+build = "build.rs"
 
 [lib]
-name = "opengl_graphics"
+name = "opengles_graphics"
 path = "src/lib.rs"
 
 [dependencies]
 image = "0.12.0"
 rusttype = "0.2.0"
-gl = "0.6.0"
-piston-shaders_graphics2d = "0.3.1"
+shaders_graphics2d_gles = { version = "0.2.0", path = "./shaders" }
 piston-texture = "0.5.0"
 piston2d-graphics = "0.21.0"
 shader_version = "0.2.0"
@@ -40,5 +40,5 @@ piston = "0.31.3"
 pistoncore-sdl2_window = "0.40.0"
 
 [build-dependencies]
+gl_generator = "0.5.0"
 khronos_api = "0.0.8"
-

README.md

@@ -1,18 +1,18 @@
-# opengl_graphics [![Build Status](https://travis-ci.org/PistonDevelopers/opengl_graphics.svg)](https://travis-ci.org/PistonDevelopers/opengl_graphics) [![Crates.io](https://img.shields.io/crates/v/piston2d-opengl_graphics.svg)](https://crates.io/crates/piston2d-opengl_graphics) [![Crates.io](https://img.shields.io/crates/l/piston2d-opengl_graphics.svg)](https://github.com/PistonDevelopers/opengl_graphics/blob/master/LICENSE)
+# opengles_graphics [![Build Status](https://travis-ci.org/PistonDevelopers/opengl_graphics.svg)](https://travis-ci.org/Drakulix/opengles_graphics) [![Crates.io](https://img.shields.io/crates/v/opengles_graphics.svg)](https://crates.io/crates/opengles_graphics) [![Crates.io](https://img.shields.io/crates/l/opengles_graphics.svg)](https://github.com/Drakulix/opengles_graphics/blob/master/LICENSE)
 
-An OpenGL 2D back-end for the Piston game engine
+An OpenGL ES 2D back-end for the Piston game engine
 
-Maintainers: @Potpourri, @bvssvni, @mitchmindtree
+Maintainers: @drakulix
+Regulary updated fork of [PistonDevelopers/opengl_graphics](https://github.com/PistonDevelopers/opengl_graphics)
 
 ### Important!
 
-OpenGL needs to load function pointers before use.
+OpenGL ES needs to load function pointers before use.
 If you are experiencing strange error messages like "X not loaded" this is likely the case.
-This is done automatically for you in the SDL2 and GLFW window back-ends for Piston.
-To do this manually, see the README in [gl-rs](https://github.com/bjz/gl-rs)
+To do this, see the README in [gl-rs](https://github.com/bjz/gl-rs)
 
-## Dependencies
 
-![dependencies](./Cargo.png)
+The necessary GL interface is exposed under `opengles_graphics::gl`.
+Currently only supportes GLSL Version 100 & GL ES Version 2.0.
 
-[How to contribute](https://github.com/PistonDevelopers/piston/blob/master/CONTRIBUTING.md)
+### Contributions welcome

build.rs

@@ -0,0 +1,15 @@
+extern crate gl_generator;
+
+use gl_generator::{Registry, Api, Profile, Fallbacks, GlobalGenerator};
+use std::env;
+use std::fs::File;
+use std::path::Path;
+
+fn main() {
+    let dest = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let mut file = File::create(&Path::new(&dest).join("src/gl.rs")).unwrap();
+
+    Registry::new(Api::Gles2, (3, 1), Profile::Compatibility, Fallbacks::All, [])
+        .write_bindings(GlobalGenerator, &mut file)
+        .unwrap();
+}