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gpu: add Adapter.enumerateFeatures

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2022-07-24 19:11:26 -07:00 • committed by Stephen Gutekanst
parent 4d5809cc16
commit 60496259b2
3 changed files with 18 additions and 1 deletions
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1
gpu/TODO-webgpu.h
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@ -10,7 +10,6 @@ typedef void (*WGPURequestAdapterCallback)(WGPURequestAdapterStatus status, WGPU
typedef void (*WGPURequestDeviceCallback)(WGPURequestDeviceStatus status, WGPUDevice device, char const * message, void * userdata); typedef void (*WGPURequestDeviceCallback)(WGPURequestDeviceStatus status, WGPUDevice device, char const * message, void * userdata);
// Methods of Adapter // Methods of Adapter
WGPU_EXPORT size_t wgpuAdapterEnumerateFeatures(WGPUAdapter adapter, WGPUFeatureName * features);
WGPU_EXPORT bool wgpuAdapterGetLimits(WGPUAdapter adapter, WGPUSupportedLimits * limits); WGPU_EXPORT bool wgpuAdapterGetLimits(WGPUAdapter adapter, WGPUSupportedLimits * limits);
WGPU_EXPORT void wgpuAdapterGetProperties(WGPUAdapter adapter, WGPUAdapterProperties * properties); WGPU_EXPORT void wgpuAdapterGetProperties(WGPUAdapter adapter, WGPUAdapterProperties * properties);
WGPU_EXPORT bool wgpuAdapterHasFeature(WGPUAdapter adapter, WGPUFeatureName feature); WGPU_EXPORT bool wgpuAdapterHasFeature(WGPUAdapter adapter, WGPUFeatureName feature);

6
gpu/src/adapter.zig
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@ -2,12 +2,18 @@ const testing = @import("std").testing;
const ChainedStructOut = @import("types.zig").ChainedStructOut; const ChainedStructOut = @import("types.zig").ChainedStructOut;
const Device = @import("device.zig").Device; const Device = @import("device.zig").Device;
const DeviceDescriptor = @import("device.zig").DeviceDescriptor; const DeviceDescriptor = @import("device.zig").DeviceDescriptor;
const FeatureName = @import("types.zig").FeatureName;
const impl = @import("interface.zig").impl; const impl = @import("interface.zig").impl;
pub const Adapter = *opaque { pub const Adapter = *opaque {
pub inline fn createDevice(adapter: Adapter, descriptor: ?*const DeviceDescriptor) ?Device { pub inline fn createDevice(adapter: Adapter, descriptor: ?*const DeviceDescriptor) ?Device {
return impl.createDevice(adapter, descriptor); return impl.createDevice(adapter, descriptor);
} }
/// Call once with null to determine the array length, and again to fetch the feature list.
pub inline fn enumerateFeatures(adapter: Adapter, features: ?[*]FeatureName) usize {
return impl.adapterEnumerateFeatures(adapter, features);
}
}; };
pub const AdapterType = enum(u32) { pub const AdapterType = enum(u32) {

12
gpu/src/interface.zig
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@ -20,6 +20,7 @@ pub fn Interface(comptime Impl: type) type {
assertDecl(Impl, "createInstance", fn (descriptor: *const InstanceDescriptor) callconv(.Inline) ?Instance); assertDecl(Impl, "createInstance", fn (descriptor: *const InstanceDescriptor) callconv(.Inline) ?Instance);
assertDecl(Impl, "getProcAddress", fn (device: gpu.Device, proc_name: [*:0]const u8) callconv(.Inline) ?gpu.Proc); assertDecl(Impl, "getProcAddress", fn (device: gpu.Device, proc_name: [*:0]const u8) callconv(.Inline) ?gpu.Proc);
assertDecl(Impl, "adapterCreateDevice", fn (adapter: gpu.Adapter, descriptor: ?*const gpu.DeviceDescriptor) callconv(.Inline) ?gpu.Device); assertDecl(Impl, "adapterCreateDevice", fn (adapter: gpu.Adapter, descriptor: ?*const gpu.DeviceDescriptor) callconv(.Inline) ?gpu.Device);
assertDecl(Impl, "adapterEnumerateFeatures", fn (adapter: gpu.Adapter, features: ?[*]gpu.FeatureName) callconv(.Inline) usize);
return Impl; return Impl;
} }
@ -47,6 +48,11 @@ pub fn Export(comptime Impl: type) type {
export fn wgpuAdapterCreateDevice(adapter: gpu.Adapter, descriptor: ?*const gpu.DeviceDescriptor) ?gpu.Device { export fn wgpuAdapterCreateDevice(adapter: gpu.Adapter, descriptor: ?*const gpu.DeviceDescriptor) ?gpu.Device {
return Impl.adapterCreateDevice(adapter, descriptor); return Impl.adapterCreateDevice(adapter, descriptor);
} }
// WGPU_EXPORT size_t wgpuAdapterEnumerateFeatures(WGPUAdapter adapter, WGPUFeatureName * features);
export fn wgpuAdapterEnumerateFeatures(adapter: gpu.Adapter, features: ?[*]gpu.FeatureName) usize {
return Impl.adapterEnumerateFeatures(adapter, features);
}
}; };
} }
@ -68,6 +74,12 @@ pub const NullInterface = Interface(struct {
_ = descriptor; _ = descriptor;
return null; return null;
} }
pub inline fn adapterEnumerateFeatures(adapter: gpu.Adapter, features: ?[*]gpu.FeatureName) usize {
_ = adapter;
_ = features;
return 0;
}
}); });
test "null" { test "null" {