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gpu: implement Buffer.mapAsync

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-15 11:53:31 -07:00 • committed by Stephen Gutekanst
parent 3ffc1ca5d8
commit 77b2210587
4 changed files with 67 additions and 13 deletions
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25
gpu/src/NativeInstance.zig
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@ -514,18 +514,18 @@ const queue_vtable = Queue.VTable{
// to remove it instead"
const signal_value: u64 = 0;
const callback = (struct {
pub fn callback(status: c.WGPUQueueWorkDoneStatus, userdata: ?*anyopaque) callconv(.C) void {
const cCallback = (struct {
pub fn cCallback(status: c.WGPUQueueWorkDoneStatus, userdata: ?*anyopaque) callconv(.C) void {
const callback_info = @ptrCast(*Queue.WorkDoneCallback, @alignCast(@alignOf(*Queue.WorkDoneCallback), userdata));
callback_info.type_erased_callback(
callback_info.type_erased_ctx,
@intToEnum(Queue.WorkDoneStatus, status),
);
}
}).callback;
}).cCallback;
var mut_on_submitted_work_done = on_submitted_work_done;
c.wgpuQueueOnSubmittedWorkDone(wgpu_queue, signal_value, callback, &mut_on_submitted_work_done);
c.wgpuQueueOnSubmittedWorkDone(wgpu_queue, signal_value, cCallback, &mut_on_submitted_work_done);
}
var few_commands: [16]c.WGPUCommandBuffer = undefined;
@ -971,6 +971,23 @@ const buffer_vtable = Buffer.VTable{
c.wgpuBufferDestroy(@ptrCast(c.WGPUBuffer, ptr));
}
}).destroy,
.mapAsync = (struct {
pub fn mapAsync(
ptr: *anyopaque,
mode: Buffer.MapMode,
offset: usize,
size: usize,
callback: *Buffer.MapCallback,
) void {
const cCallback = (struct {
pub fn cCallback(status: c.WGPUBufferMapAsyncStatus, userdata: ?*anyopaque) callconv(.C) void {
const callback_info = @ptrCast(*Buffer.MapCallback, @alignCast(@alignOf(*Buffer.MapCallback), userdata.?));
callback_info.type_erased_callback(callback_info.type_erased_ctx, @intToEnum(Buffer.MapAsyncStatus, status));
}
}).cCallback;
c.wgpuBufferMapAsync(@ptrCast(c.WGPUBuffer, ptr), @enumToInt(mode), offset, size, cCallback, callback);
}
}).mapAsync,
.unmap = (struct {
pub fn unmap(ptr: *anyopaque) void {
c.wgpuBufferUnmap(@ptrCast(c.WGPUBuffer, ptr));