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Depth bias dynamic state, using iterator for updating descriptor sets

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This commit is contained in:
Dzmitry Malyshau 2018-07-12 23:09:26 -04:00
parent 2aec56a099
commit 7e2ba90232
1 changed files with 25 additions and 25 deletions
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50
libportability-gfx/src/impls.rs
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@ -1701,27 +1701,38 @@ pub extern "C" fn gfxCreateGraphicsPipelines(
let mut cur_shader_stage = 0;
let descs = infos.into_iter().map(|info| {
let (rasterizer, rasterizer_discard) = {
let state = unsafe { &*info.pRasterizationState };
let rasterizer_discard = unsafe { &*info.pRasterizationState }.rasterizerDiscardEnable == VK_TRUE;
let rasterizer = pso::Rasterizer {
let empty_dyn_states = [];
let dyn_states = match unsafe { info.pDynamicState.as_ref() } {
Some(state) if !rasterizer_discard => unsafe {
slice::from_raw_parts(state.pDynamicStates, state.dynamicStateCount as _)
},
_ => &empty_dyn_states,
};
let rasterizer = {
let state = unsafe { &*info.pRasterizationState };
pso::Rasterizer {
polygon_mode: conv::map_polygon_mode(state.polygonMode, state.lineWidth),
cull_face: conv::map_cull_face(state.cullMode),
front_face: conv::map_front_face(state.frontFace),
depth_clamping: state.depthClampEnable == VK_TRUE,
depth_bias: if state.depthBiasEnable == VK_TRUE {
Some(pso::DepthBias {
const_factor: state.depthBiasConstantFactor,
clamp: state.depthBiasClamp,
slope_factor: state.depthBiasSlopeFactor,
Some(if dyn_states.iter().any(|&ds| ds == VkDynamicState::VK_DYNAMIC_STATE_DEPTH_BIAS) {
pso::State::Dynamic
} else {
pso::State::Static(pso::DepthBias {
const_factor: state.depthBiasConstantFactor,
clamp: state.depthBiasClamp,
slope_factor: state.depthBiasSlopeFactor,
})
})
} else {
None
},
conservative: false,
};
(rasterizer, state.rasterizerDiscardEnable == VK_TRUE)
}
};
let shaders = {
@ -1905,14 +1916,6 @@ pub extern "C" fn gfxCreateGraphicsPipelines(
None
};
let empty_dyn_states = [];
let dyn_states = match unsafe { info.pDynamicState.as_ref() } {
Some(state) if !rasterizer_discard => unsafe {
slice::from_raw_parts(state.pDynamicStates, state.dynamicStateCount as _)
},
_ => &empty_dyn_states,
};
// TODO: `pDepthStencilState` could contain garbage, but implementations
// can ignore it in some circumstances. How to handle it?
let depth_stencil = if !rasterizer_discard {
@ -2479,10 +2482,7 @@ pub extern "C" fn gfxUpdateDescriptorSets(
let write_infos = unsafe {
slice::from_raw_parts(pDescriptorWrites, descriptorWriteCount as _)
};
//TODO: investigate the safety of passing one giant iterator here
let mut writes = SmallVec::<[pso::DescriptorSetWrite<_, _>; 16]>::with_capacity(write_infos.len());
for write in write_infos {
let writes = write_infos.iter().map(|write| {
let image_info = unsafe {
slice::from_raw_parts(write.pImageInfo, write.descriptorCount as _)
};
@ -2560,13 +2560,13 @@ pub extern "C" fn gfxUpdateDescriptorSets(
}
};
writes.push(pso::DescriptorSetWrite {
pso::DescriptorSetWrite {
set: &*write.dstSet,
binding: write.dstBinding as _,
array_offset: write.dstArrayElement as _,
descriptors,
});
}
}
});
let copies = unsafe {
slice::from_raw_parts(pDescriptorCopies, descriptorCopyCount as _)