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VulkanDriver/src/soft/SoftQueue.zig
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const std = @import("std");
const vk = @import("vulkan");
const base = @import("base");
const RefCounter = base.RefCounter;
const ExecutionDevice = @import("device/Device.zig");
const Dispatchable = base.Dispatchable;
const CommandBuffer = base.CommandBuffer;
const SoftDevice = @import("SoftDevice.zig");
const SoftCommandBuffer = @import("SoftCommandBuffer.zig");
const VkError = base.VkError;
const Self = @This();
pub const Interface = base.Queue;
interface: Interface,
lock: std.Io.RwLock,
pub fn create(allocator: std.mem.Allocator, device: *base.Device, index: u32, family_index: u32, flags: vk.DeviceQueueCreateFlags) VkError!*Interface {
const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
errdefer allocator.destroy(self);
var interface = try Interface.init(allocator, device, index, family_index, flags);
interface.dispatch_table = &.{
.bindSparse = bindSparse,
.submit = submit,
.waitIdle = waitIdle,
};
self.* = .{
.interface = interface,
.lock = .init,
};
return &self.interface;
}
pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
allocator.destroy(self);
}
pub fn bindSparse(interface: *Interface, info: []const vk.BindSparseInfo, fence: ?*base.Fence) VkError!void {
const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
_ = self;
_ = info;
_ = fence;
return VkError.FeatureNotPresent;
}
pub fn submit(interface: *Interface, infos: []Interface.SubmitInfo, p_fence: ?*base.Fence) VkError!void {
const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
const soft_device: *SoftDevice = @alignCast(@fieldParentPtr("interface", interface.owner));
const allocator = soft_device.device_allocator.allocator();
const io = soft_device.interface.io();
// Lock here to avoid acquiring it in `waitIdle` before runners start
self.lock.lockShared(io) catch return VkError.DeviceLost;
defer self.lock.unlockShared(io);
for (infos) |info| {
// Cloning info to keep them alive until command execution ends
const cloned_info: Interface.SubmitInfo = .{
.command_buffers = info.command_buffers.clone(allocator) catch return VkError.OutOfDeviceMemory,
};
const runners_counter = allocator.create(RefCounter) catch return VkError.OutOfDeviceMemory;
runners_counter.* = .init;
_ = soft_device.interface.io().async(Self.taskRunner, .{ self, cloned_info, p_fence, runners_counter });
}
}
pub fn waitIdle(interface: *Interface) VkError!void {
const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
const io = interface.owner.io();
self.lock.lock(io) catch return VkError.DeviceLost;
defer self.lock.unlock(io);
}
fn taskRunner(self: *Self, info: Interface.SubmitInfo, p_fence: ?*base.Fence, runners_counter: *RefCounter) void {
const io = self.interface.owner.io();
self.lock.lockShared(io) catch return;
defer self.lock.unlockShared(io);
runners_counter.ref();
defer {
runners_counter.unref();
if (!runners_counter.hasRefs()) {
const soft_device: *SoftDevice = @alignCast(@fieldParentPtr("interface", self.interface.owner));
const allocator = soft_device.device_allocator.allocator();
allocator.destroy(runners_counter);
}
}
var soft_device: *SoftDevice = @alignCast(@fieldParentPtr("interface", self.interface.owner));
defer {
var command_buffers = info.command_buffers;
command_buffers.deinit(soft_device.device_allocator.allocator());
}
var execution_device: ExecutionDevice = .init;
execution_device.setup(soft_device);
defer execution_device.deinit();
for (info.command_buffers.items) |command_buffer| {
const soft_command_buffer: *SoftCommandBuffer = @alignCast(@fieldParentPtr("interface", command_buffer));
soft_command_buffer.execute(&execution_device);
}
if (p_fence) |fence| {
if (runners_counter.getRefsCount() == 1) {
fence.signal() catch {};
}
}
}