diff options
Diffstat (limited to 'examples/support')
| -rw-r--r-- | examples/support/mod.rs | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/examples/support/mod.rs b/examples/support/mod.rs index 4495f17..1dddfc3 100644 --- a/examples/support/mod.rs +++ b/examples/support/mod.rs @@ -3,8 +3,15 @@ extern crate gl_generator; use gl_init; +#[cfg(not(target_os = "android"))] mod gl { - generate_gl_bindings!("gl", "core", "4.5", "struct") + generate_gl_bindings!("gl", "core", "1.1", "struct") +} + +#[cfg(target_os = "android")] +mod gl { + pub use self::Gles1 as Gl; + generate_gl_bindings!("gles1", "core", "1.1", "struct") } pub struct Context { @@ -25,8 +32,45 @@ pub fn load(window: &gl_init::Window) -> Context { } impl Context { + #[cfg(not(target_os = "android"))] pub fn draw_frame(&self, color: (f32, f32, f32, f32)) { self.gl.ClearColor(color.0, color.1, color.2, color.3); self.gl.Clear(gl::COLOR_BUFFER_BIT); + + self.gl.Begin(gl::TRIANGLES); + self.gl.Color3f(1.0, 0.0, 0.0); + self.gl.Vertex2f(-0.5, -0.5); + self.gl.Color3f(0.0, 1.0, 0.0); + self.gl.Vertex2f(0.0, 0.5); + self.gl.Color3f(0.0, 0.0, 1.0); + self.gl.Vertex2f(0.5, -0.5); + self.gl.End(); + } + + #[cfg(target_os = "android")] + pub fn draw_frame(&self, color: (f32, f32, f32, f32)) { + self.gl.ClearColor(color.0, color.1, color.2, color.3); + self.gl.Clear(gl::COLOR_BUFFER_BIT); + + let vertex_data: [f32, ..15] = [ + -0.5, -0.5, 1.0, 0.0, 0.0, + 0.0, 0.5, 0.0, 1.0, 0.0, + 0.5, -0.5, 0.0, 0.0, 1.0 + ]; + + self.gl.EnableClientState(gl::VERTEX_ARRAY); + self.gl.EnableClientState(gl::COLOR_ARRAY); + + unsafe { + use std::mem; + self.gl.VertexPointer(2, gl::FLOAT, (mem::size_of::<f32>() * 5) as i32, + mem::transmute(vertex_data.as_slice().as_ptr())); + self.gl.ColorPointer(3, gl::FLOAT, (mem::size_of::<f32>() * 5) as i32, + mem::transmute(vertex_data.as_slice().as_ptr().offset(2))); + } + + self.gl.DrawArrays(gl::TRIANGLES, 0, 3); + self.gl.DisableClientState(gl::VERTEX_ARRAY); + self.gl.DisableClientState(gl::COLOR_ARRAY); } } |