diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/headless.rs | 53 |
1 files changed, 43 insertions, 10 deletions
diff --git a/tests/headless.rs b/tests/headless.rs index fdbb6c2..c22be40 100644 --- a/tests/headless.rs +++ b/tests/headless.rs @@ -1,28 +1,61 @@ extern crate glutin; extern crate libc; +use glutin::*; +use std::ptr; mod gl { + pub use self::Gles2 as Gl; include!(concat!(env!("OUT_DIR"), "/test_gl_bindings.rs")); } +use gl::types::*; -#[cfg(feature = "headless")] + +#[cfg(target_os = "macos")] #[test] -fn main() { - let window = glutin::HeadlessRendererBuilder::new(1024, 768).build().unwrap(); +fn test_headless() { + let width: i32 = 256; + let height: i32 = 256; + let window = glutin::HeadlessRendererBuilder::new(width as u32, height as u32).build().unwrap(); unsafe { window.make_current() }; - let gl = gl::Gl::load_with(|symbol| window.get_proc_address(symbol)); + let gl = gl::Gl::load_with(|symbol| window.get_proc_address(symbol) as *const _); unsafe { + let mut framebuffer = 0; + let mut texture = 0; + gl.GenFramebuffers(1, &mut framebuffer); + gl.BindFramebuffer(gl::FRAMEBUFFER, framebuffer); + gl.GenTextures(1, &mut texture); + gl.BindTexture(gl::TEXTURE_2D, texture); + gl.TexParameteri(gl::TEXTURE_2D, gl::TEXTURE_MAG_FILTER, gl::LINEAR as i32); + gl.TexParameteri(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR as i32); + gl.TexImage2D(gl::TEXTURE_2D, 0, gl::RGBA as i32, width, height, + 0, gl::RGBA, gl::UNSIGNED_BYTE, ptr::null()); + gl.FramebufferTexture2D(gl::FRAMEBUFFER, gl::COLOR_ATTACHMENT0, gl::TEXTURE_2D, texture, 0); + let status = gl.CheckFramebufferStatus(gl::FRAMEBUFFER); + if status != gl::FRAMEBUFFER_COMPLETE { + panic!("Error while creating the framebuffer"); + } + gl.ClearColor(0.0, 1.0, 0.0, 1.0); gl.Clear(gl::COLOR_BUFFER_BIT); + gl.Enable(gl::SCISSOR_TEST); + gl.Scissor(1, 0, 1, 1); + gl.ClearColor(1.0, 0.0, 0.0, 1.0); + gl.Clear(gl::COLOR_BUFFER_BIT); + + let mut values: Vec<u8> = vec![0;(width*height*4) as usize]; + gl.ReadPixels(0, 0, width, height, gl::RGBA, gl::UNSIGNED_BYTE, values.as_mut_ptr() as *mut GLvoid); + + assert_eq!(values[0], 0); + assert_eq!(values[1], 255); + assert_eq!(values[2], 0); + assert_eq!(values[3], 255); - let mut value: (u8, u8, u8, u8) = std::mem::uninitialized(); - gl.ReadPixels(0, 0, 1, 1, gl::RGBA, gl::UNSIGNED_BYTE, std::mem::transmute(&mut value)); - - assert!(value == (0, 255, 0, 255) || value == (0, 64, 0, 255) || - value == (0, 64, 0, 255) || value == (0, 64, 0, 0), - "value is: {:?}", value); + assert_eq!(values[4], 255); + assert_eq!(values[5], 0); + assert_eq!(values[6], 0); + assert_eq!(values[7], 255); } } |