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unified command info ii

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This unifies command info even more, by making the user first construct
a list of `ApiInfo` to represent the api that they want to use. This
allows for much easier composition of different extensions and features.
This commit is contained in:
Robin Voetter
2024-04-28 23:59:26 +02:00
parent 66c2a743ba
commit c408e57d6d
2 changed files with 130 additions and 115 deletions
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45
examples/graphics_context.zig
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@@ -3,32 +3,29 @@ const vk = @import("vulkan");
const c = @import("c.zig");
const Allocator = std.mem.Allocator;
const required_device_extensions = [_][*:0]const u8{vk.extension_info.khr_swapchain.name};
const required_device_extensions = [_][*:0]const u8{vk.extensions.khr_swapchain.name};
const BaseDispatch = vk.BaseWrapper(blk: {
var commands = vk.feature_info.version_1_0.base_functions;
commands = vk.BaseCommandFlags.merge(commands, vk.feature_info.version_1_1.base_functions);
commands = vk.BaseCommandFlags.merge(commands, vk.feature_info.version_1_2.base_functions);
break :blk commands;
});
/// To construct base, instance and device wrappers for vulkan-zig, you need to pass a list of 'apis' to it.
const apis: []const vk.ApiInfo = &.{
// You can either add invidiual functions by manually creating an 'api'
.{
.base_commands = .{
.createInstance = true,
},
.instance_commands = .{
.createDevice = true,
},
},
// Or you can add entire feature sets or extensions
vk.features.version_1_0,
vk.extensions.khr_surface,
vk.extensions.khr_swapchain,
};
const InstanceDispatch = vk.InstanceWrapper(blk: {
var commands = vk.feature_info.version_1_0.instance_functions;
commands = vk.InstanceCommandFlags.merge(commands, vk.feature_info.version_1_1.instance_functions);
commands = vk.InstanceCommandFlags.merge(commands, vk.feature_info.version_1_2.instance_functions);
commands = vk.InstanceCommandFlags.merge(commands, vk.extension_info.khr_surface.instance_functions);
commands = vk.InstanceCommandFlags.merge(commands, vk.extension_info.khr_swapchain.instance_functions);
break :blk commands;
});
const DeviceDispatch = vk.DeviceWrapper(blk: {
var commands = vk.feature_info.version_1_0.device_functions;
commands = vk.DeviceCommandFlags.merge(commands, vk.feature_info.version_1_1.device_functions);
commands = vk.DeviceCommandFlags.merge(commands, vk.feature_info.version_1_2.device_functions);
commands = vk.DeviceCommandFlags.merge(commands, vk.extension_info.khr_surface.device_functions);
commands = vk.DeviceCommandFlags.merge(commands, vk.extension_info.khr_swapchain.device_functions);
break :blk commands;
});
/// Next, pass the `apis` to the wrappers to create dispatch tables.
const BaseDispatch = vk.BaseWrapper(apis);
const InstanceDispatch = vk.InstanceWrapper(apis);
const DeviceDispatch = vk.DeviceWrapper(apis);
pub const GraphicsContext = struct {
vkb: BaseDispatch,