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Implement enumerate_arb_pixel_formats

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This commit is contained in:
Pierre Krieger 2015-02-16 15:55:26 +01:00
parent d1bc85c011
commit 950fd58b77
2 changed files with 51 additions and 3 deletions
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4
build.rs
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@ -22,7 +22,9 @@ fn main() {
khronos_api::WGL_XML,
vec![
"WGL_ARB_create_context".to_string(),
"WGL_EXT_swap_control".to_string()
"WGL_EXT_swap_control".to_string(),
"WGL_ARB_pixel_format".to_string(),
"WGL_ARB_framebuffer_sRGB".to_string(),
],
"1.0", "core", &mut file).unwrap();
}

50
src/win32/init.rs
View file

@ -462,6 +462,52 @@ fn enumerate_native_pixel_formats(hdc: winapi::HDC) -> Vec<(PixelFormat, libc::c
result
}
fn enumerate_arb_pixel_formats(extra: &gl::wgl_extra::Wgl, hdc: winapi::HDC) -> Vec<PixelFormat> {
unimplemented!()
fn enumerate_arb_pixel_formats(extra: &gl::wgl_extra::Wgl, hdc: winapi::HDC)
-> Vec<(PixelFormat, libc::c_int)>
{
let get_info = |index: u32, attrib: u32| {
let mut value = unsafe { mem::uninitialized() };
unsafe { extra.GetPixelFormatAttribivARB(hdc as *const libc::c_void, index as libc::c_int,
0, 1, [attrib as libc::c_int].as_ptr(),
&mut value) };
value as u32
};
// getting the number of formats
// the `1` is ignored
let num = get_info(1, gl::wgl_extra::NUMBER_PIXEL_FORMATS_ARB);
let mut result = Vec::new();
for index in (0 .. num) {
if get_info(index, gl::wgl_extra::DRAW_TO_WINDOW_ARB) == 0 {
continue;
}
if get_info(index, gl::wgl_extra::SUPPORT_OPENGL_ARB) == 0 {
continue;
}
if get_info(index, gl::wgl_extra::ACCELERATION_ARB) == gl::wgl_extra::NO_ACCELERATION_ARB {
continue;
}
if get_info(index, gl::wgl_extra::PIXEL_TYPE_ARB) != gl::wgl_extra::TYPE_RGBA_ARB {
continue;
}
result.push((PixelFormat {
red_bits: get_info(index, gl::wgl_extra::RED_BITS_ARB) as u8,
green_bits: get_info(index, gl::wgl_extra::GREEN_BITS_ARB) as u8,
blue_bits: get_info(index, gl::wgl_extra::BLUE_BITS_ARB) as u8,
alpha_bits: get_info(index, gl::wgl_extra::ALPHA_BITS_ARB) as u8,
depth_bits: get_info(index, gl::wgl_extra::DEPTH_BITS_ARB) as u8,
stencil_bits: get_info(index, gl::wgl_extra::STENCIL_BITS_ARB) as u8,
stereoscopy: get_info(index, gl::wgl_extra::STEREO_ARB) != 0,
double_buffer: get_info(index, gl::wgl_extra::DOUBLE_BUFFER_ARB) != 0,
multisampling: None, // FIXME:
srgb: false, // FIXME:
}, index as libc::c_int));
}
result
}