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Merge pull request #755 from BonsaiDen/glx_multisampling_conformance

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glx: Support non-conformant multisampling fbconfigs.
This commit is contained in:
tomaka 2016-04-06 16:34:05 +02:00
parent 9a129aa862 1b313df1ea
commit d2343106bc
1 changed files with 16 additions and 9 deletions
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25
src/api/glx/mod.rs
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@ -360,6 +360,7 @@ unsafe fn choose_fbconfig(glx: &ffi::glx::Glx, extensions: &str, xlib: &ffi::Xli
-> Result<(ffi::glx::types::GLXFBConfig, PixelFormat), ()>
{
let descriptor = {
let mut glx_non_conformant = false;
let mut out: Vec<c_int> = Vec::with_capacity(37);
out.push(ffi::glx::X_RENDERABLE as c_int);
@ -382,15 +383,6 @@ unsafe fn choose_fbconfig(glx: &ffi::glx::Glx, extensions: &str, xlib: &ffi::Xli
out.push(ffi::glx::RGBA_BIT as c_int);
}
if let Some(hardware_accelerated) = reqs.hardware_accelerated {
out.push(ffi::glx::CONFIG_CAVEAT as c_int);
out.push(if hardware_accelerated {
ffi::glx::NONE as c_int
} else {
ffi::glx::SLOW_CONFIG as c_int
});
}
if let Some(color) = reqs.color_bits {
out.push(ffi::glx::RED_SIZE as c_int);
out.push((color / 3) as c_int);
@ -425,6 +417,7 @@ unsafe fn choose_fbconfig(glx: &ffi::glx::Glx, extensions: &str, xlib: &ffi::Xli
out.push(if multisampling == 0 { 0 } else { 1 });
out.push(ffi::glx_extra::SAMPLES_ARB as c_int);
out.push(multisampling as c_int);
glx_non_conformant = true;
} else {
return Err(());
}
@ -452,6 +445,20 @@ unsafe fn choose_fbconfig(glx: &ffi::glx::Glx, extensions: &str, xlib: &ffi::Xli
},
}
if let Some(hardware_accelerated) = reqs.hardware_accelerated {
let caveat = if hardware_accelerated {
ffi::glx::NONE as c_int
} else {
ffi::glx::SLOW_CONFIG as c_int
};
out.push(ffi::glx::CONFIG_CAVEAT as c_int);
out.push(if glx_non_conformant {
caveat | ffi::glx::NON_CONFORMANT_CONFIG as c_int
} else {
caveat
});
}
out.push(0);
out
};