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gpu: implement Device.createPipelineLayout

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-18 17:31:39 -07:00 • committed by Stephen Gutekanst
parent cedf734e4e
commit acb3049739
2 changed files with 31 additions and 12 deletions
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30
gpu/src/NativeInstance.zig
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@ -523,12 +523,32 @@ const device_vtable = Device.VTable{
return wrapExternalTexture(c.wgpuDeviceCreateExternalTexture(@ptrCast(c.WGPUDevice, ptr), &desc));
}
}).createExternalTexture,
.createPipelineLayout = (struct {
pub fn createPipelineLayout(ptr: *anyopaque, descriptor: *const PipelineLayout.Descriptor) PipelineLayout {
var few_bind_group_layouts: [16]c.WGPUBindGroupLayout = undefined;
const bind_group_layouts = if (descriptor.bind_group_layouts.len <= 16) blk: {
for (descriptor.bind_group_layouts) |layout, i| {
few_bind_group_layouts[i] = @ptrCast(c.WGPUBindGroupLayout, layout.ptr);
}
break :blk few_bind_group_layouts[0..descriptor.bind_group_layouts.len];
} else blk: {
const mem = std.heap.page_allocator.alloc(c.WGPUBindGroupLayout, descriptor.bind_group_layouts.len) catch unreachable;
for (descriptor.bind_group_layouts) |layout, i| {
mem[i] = @ptrCast(c.WGPUBindGroupLayout, layout.ptr);
}
break :blk mem;
};
defer if (descriptor.bind_group_layouts.len > 16) std.heap.page_allocator.free(descriptor.bind_group_layouts);
// pub inline fn createPipelineLayout(device: Device, descriptor: *const PipelineLayout.Descriptor) PipelineLayout {
// return device.vtable.createPipelineLayout(device.ptr);
// }
// createPipelineLayout: fn (ptr: *anyopaque, descriptor: *const PipelineLayout.Descriptor) PipelineLayout,
// WGPU_EXPORT WGPUPipelineLayout wgpuDeviceCreatePipelineLayout(WGPUDevice device, WGPUPipelineLayoutDescriptor const * descriptor);
const desc = c.WGPUPipelineLayoutDescriptor{
.nextInChain = null,
.label = if (descriptor.label) |l| l else null,
.bindGroupLayoutCount = @intCast(u32, bind_group_layouts.len),
.bindGroupLayouts = &bind_group_layouts[0],
};
return wrapPipelineLayout(c.wgpuDeviceCreatePipelineLayout(@ptrCast(c.WGPUDevice, ptr), &desc));
}
}).createPipelineLayout,
// pub inline fn createQuerySet(device: Device, descriptor: *const QuerySet.Descriptor) QuerySet {
// return device.vtable.createQuerySet(device.ptr);