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Fix memory leak on macOS #2092

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merged 3 commits into from
Oct 20, 2021
Merged

Fix memory leak on macOS #2092

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3a44e06
Fix memory RenderCommandEncoder, BlitCommandEncoder, label leak on macOS
xiaopengli89 Oct 19, 2021
5e8ccc5
Don't wrap autoreleasepool when blit command encoder is already active
xiaopengli89 Oct 19, 2021
a7d100c
Revert wrap set_label, instead focus on gfx-rs/metal-rs#218
xiaopengli89 Oct 20, 2021
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132 changes: 68 additions & 64 deletions wgpu-hal/src/metal/command.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,8 +24,10 @@ impl super::CommandEncoder {
fn enter_blit(&mut self) -> &mtl::BlitCommandEncoderRef {
if self.state.blit.is_none() {
debug_assert!(self.state.render.is_none() && self.state.compute.is_none());
let cmd_buf = self.raw_cmd_buf.as_ref().unwrap();
self.state.blit = Some(cmd_buf.new_blit_command_encoder().to_owned());
objc::rc::autoreleasepool(|| {
let cmd_buf = self.raw_cmd_buf.as_ref().unwrap();
self.state.blit = Some(cmd_buf.new_blit_command_encoder().to_owned());
});
}
self.state.blit.as_ref().unwrap()
}
Expand Down Expand Up @@ -321,80 +323,82 @@ impl crate::CommandEncoder<super::Api> for super::CommandEncoder {
self.begin_pass();
self.state.index = None;

let descriptor = mtl::RenderPassDescriptor::new();
//TODO: set visibility results buffer
objc::rc::autoreleasepool(|| {
let descriptor = mtl::RenderPassDescriptor::new();
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//TODO: set visibility results buffer

for (i, at) in desc.color_attachments.iter().enumerate() {
let at_descriptor = descriptor.color_attachments().object_at(i as u64).unwrap();
at_descriptor.set_texture(Some(&at.target.view.raw));
if let Some(ref resolve) = at.resolve_target {
//Note: the selection of levels and slices is already handled by `TextureView`
at_descriptor.set_resolve_texture(Some(&resolve.view.raw));
}
let load_action = if at.ops.contains(crate::AttachmentOps::LOAD) {
mtl::MTLLoadAction::Load
} else {
at_descriptor.set_clear_color(conv::map_clear_color(&at.clear_value));
mtl::MTLLoadAction::Clear
};
let store_action = conv::map_store_action(
at.ops.contains(crate::AttachmentOps::STORE),
at.resolve_target.is_some(),
);
at_descriptor.set_load_action(load_action);
at_descriptor.set_store_action(store_action);
}

if let Some(ref at) = desc.depth_stencil_attachment {
if at.target.view.aspects.contains(crate::FormatAspects::DEPTH) {
let at_descriptor = descriptor.depth_attachment().unwrap();
for (i, at) in desc.color_attachments.iter().enumerate() {
let at_descriptor = descriptor.color_attachments().object_at(i as u64).unwrap();
at_descriptor.set_texture(Some(&at.target.view.raw));

let load_action = if at.depth_ops.contains(crate::AttachmentOps::LOAD) {
if let Some(ref resolve) = at.resolve_target {
//Note: the selection of levels and slices is already handled by `TextureView`
at_descriptor.set_resolve_texture(Some(&resolve.view.raw));
}
let load_action = if at.ops.contains(crate::AttachmentOps::LOAD) {
mtl::MTLLoadAction::Load
} else {
at_descriptor.set_clear_depth(at.clear_value.0 as f64);
at_descriptor.set_clear_color(conv::map_clear_color(&at.clear_value));
mtl::MTLLoadAction::Clear
};
let store_action = if at.depth_ops.contains(crate::AttachmentOps::STORE) {
mtl::MTLStoreAction::Store
} else {
mtl::MTLStoreAction::DontCare
};
let store_action = conv::map_store_action(
at.ops.contains(crate::AttachmentOps::STORE),
at.resolve_target.is_some(),
);
at_descriptor.set_load_action(load_action);
at_descriptor.set_store_action(store_action);
}
if at
.target
.view
.aspects
.contains(crate::FormatAspects::STENCIL)
{
let at_descriptor = descriptor.stencil_attachment().unwrap();
at_descriptor.set_texture(Some(&at.target.view.raw));

let load_action = if at.stencil_ops.contains(crate::AttachmentOps::LOAD) {
mtl::MTLLoadAction::Load
} else {
at_descriptor.set_clear_stencil(at.clear_value.1);
mtl::MTLLoadAction::Clear
};
let store_action = if at.stencil_ops.contains(crate::AttachmentOps::STORE) {
mtl::MTLStoreAction::Store
} else {
mtl::MTLStoreAction::DontCare
};
at_descriptor.set_load_action(load_action);
at_descriptor.set_store_action(store_action);
if let Some(ref at) = desc.depth_stencil_attachment {
if at.target.view.aspects.contains(crate::FormatAspects::DEPTH) {
let at_descriptor = descriptor.depth_attachment().unwrap();
at_descriptor.set_texture(Some(&at.target.view.raw));

let load_action = if at.depth_ops.contains(crate::AttachmentOps::LOAD) {
mtl::MTLLoadAction::Load
} else {
at_descriptor.set_clear_depth(at.clear_value.0 as f64);
mtl::MTLLoadAction::Clear
};
let store_action = if at.depth_ops.contains(crate::AttachmentOps::STORE) {
mtl::MTLStoreAction::Store
} else {
mtl::MTLStoreAction::DontCare
};
at_descriptor.set_load_action(load_action);
at_descriptor.set_store_action(store_action);
}
if at
.target
.view
.aspects
.contains(crate::FormatAspects::STENCIL)
{
let at_descriptor = descriptor.stencil_attachment().unwrap();
at_descriptor.set_texture(Some(&at.target.view.raw));

let load_action = if at.stencil_ops.contains(crate::AttachmentOps::LOAD) {
mtl::MTLLoadAction::Load
} else {
at_descriptor.set_clear_stencil(at.clear_value.1);
mtl::MTLLoadAction::Clear
};
let store_action = if at.stencil_ops.contains(crate::AttachmentOps::STORE) {
mtl::MTLStoreAction::Store
} else {
mtl::MTLStoreAction::DontCare
};
at_descriptor.set_load_action(load_action);
at_descriptor.set_store_action(store_action);
}
}
}

let raw = self.raw_cmd_buf.as_ref().unwrap();
let encoder = raw.new_render_command_encoder(descriptor);
if let Some(label) = desc.label {
encoder.set_label(label);
}
self.state.render = Some(encoder.to_owned());
let raw = self.raw_cmd_buf.as_ref().unwrap();
let encoder = raw.new_render_command_encoder(descriptor);
if let Some(label) = desc.label {
encoder.set_label(label);
}
self.state.render = Some(encoder.to_owned());
});
}

unsafe fn end_render_pass(&mut self) {
Expand Down