mach/gpu/src/adapter.zig
Stephen Gutekanst cd4021fa56 gpu: add RequestDeviceCallback
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
2022-08-12 00:43:43 -07:00

66 lines
2.1 KiB
Zig

const testing = @import("std").testing;
const ChainedStructOut = @import("types.zig").ChainedStructOut;
const Device = @import("device.zig").Device;
const DeviceDescriptor = @import("device.zig").DeviceDescriptor;
const FeatureName = @import("types.zig").FeatureName;
const SupportedLimits = @import("types.zig").SupportedLimits;
const RequestDeviceStatus = @import("types.zig").RequestDeviceStatus;
const impl = @import("interface.zig").impl;
pub const Adapter = *opaque {
pub inline fn createDevice(adapter: Adapter, descriptor: ?*const DeviceDescriptor) ?Device {
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 inline fn getLimits(adapter: Adapter, limits: *SupportedLimits) bool {
return impl.adapterGetLimits(adapter, limits);
}
pub inline fn getProperties(adapter: Adapter, properties: *AdapterProperties) void {
impl.adapterGetProperties(adapter, properties);
}
};
pub const RequestDeviceCallback = fn (
status: RequestDeviceStatus,
device: Device,
message: [*:0]const u8,
userdata: *anyopaque,
) callconv(.C) void;
pub const AdapterType = enum(u32) {
discrete_gpu,
integrated_gpu,
cpu,
unknown,
pub fn name(t: AdapterType) []const u8 {
return switch (t) {
.discrete_gpu => "Discrete GPU",
.integrated_gpu => "Integrated GPU",
.cpu => "CPU",
.unknown => "Unknown",
};
}
};
pub const AdapterProperties = extern struct {
next_in_chain: *ChainedStructOut,
vendor_id: u32,
vendor_name: [*:0]const u8,
architecture: [*:0]const u8,
device_id: u32,
name: [*:0]const u8,
driver_description: [*:0]const u8,
adapter_type: AdapterType,
backend_type: AdapterType,
};
test "AdapterType name" {
try testing.expectEqualStrings("Discrete GPU", AdapterType.discrete_gpu.name());
}