multiple frames in flight
This commit is contained in:
315
src/main.zig
315
src/main.zig
@@ -4,8 +4,6 @@ const c = @import("c.zig");
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const shaders = @import("shaders");
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const Allocator = std.mem.Allocator;
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const gfx = @import("gfx.zig");
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const au = @import("au.zig");
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const app_name = "vulkan-zig triangle example";
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@@ -63,19 +61,46 @@ pub fn main() !void {
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var sc = try au.SwapChain.init(alloc);
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defer sc.deinit();
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const pool = try au.D.createCommandPool(&.{ .queue_family_index = au.device_config.family }, null);
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defer au.D.destroyCommandPool(pool, null);
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var flight = std.MultiArrayList(struct {
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acquire: vk.Semaphore,
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complete: vk.Semaphore,
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fence: vk.Fence,
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pool: vk.CommandPool,
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}){};
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defer {
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for (flight.items(.acquire)) |sem| {
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au.D.destroySemaphore(sem, null);
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}
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for (flight.items(.complete)) |sem| {
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au.D.destroySemaphore(sem, null);
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}
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for (flight.items(.fence)) |fnc| {
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au.D.destroyFence(fnc, null);
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}
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for (flight.items(.pool)) |pool| {
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au.D.destroyCommandPool(pool, null);
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}
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flight.deinit(alloc);
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}
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const sem_ready: vk.Semaphore = try au.D.createSemaphore(&.{}, null);
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defer au.D.destroySemaphore(sem_ready, null);
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try flight.resize(alloc, 3); // FRAMES IN FLIGHT
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for (flight.items(.acquire)) |*sem| {
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sem.* = try au.D.createSemaphore(&.{}, null);
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}
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for (flight.items(.complete)) |*sem| {
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sem.* = try au.D.createSemaphore(&.{}, null);
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}
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for (flight.items(.fence)) |*fnc| {
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fnc.* = try au.D.createFence(&.{ .flags = .{ .signaled_bit = true } }, null);
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}
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for (flight.items(.pool)) |*pool| {
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pool.* = try au.D.createCommandPool(&.{ .queue_family_index = au.device_config.family }, null);
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}
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const sem_done: vk.Semaphore = try au.D.createSemaphore(&.{}, null);
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defer au.D.destroySemaphore(sem_done, null);
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var flight_idx: usize = 0;
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while (!au.W.should_close()) : (flight_idx = (flight_idx + 1) % flight.len) {
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const frame = flight.get(flight_idx);
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const fence: vk.Fence = try au.D.createFence(&.{ .flags = .{ .signaled_bit = true } }, null);
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defer au.D.destroyFence(fence, null);
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while (!au.W.should_close()) {
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// todo switch mode depending on if window is focused
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const events = au.wait_events_timeout(0.10);
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@@ -89,14 +114,14 @@ pub fn main() !void {
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_ = try sc.rebuild();
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_ = try au.D.waitForFences(1, &.{fence}, vk.TRUE, std.math.maxInt(u64));
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try au.D.resetFences(1, &.{fence});
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try au.D.resetCommandPool(pool, .{});
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_ = try au.D.waitForFences(1, &.{frame.fence}, vk.TRUE, std.math.maxInt(u64));
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try au.D.resetFences(1, &.{frame.fence});
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try au.D.resetCommandPool(frame.pool, .{});
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const acq = try au.D.acquireNextImageKHR(
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sc.handle,
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std.math.maxInt(u64),
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sem_ready,
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frame.acquire,
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.null_handle,
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);
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const image = sc.getImage(acq.image_index);
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@@ -104,7 +129,7 @@ pub fn main() !void {
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var cmd = au.CommandBufferProxy.init(.null_handle, au.D.wrapper);
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try au.D.allocateCommandBuffers(&.{
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.command_pool = pool,
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.command_pool = frame.pool,
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.level = .primary,
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.command_buffer_count = 1,
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}, @ptrCast(&cmd.handle));
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@@ -212,24 +237,24 @@ pub fn main() !void {
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1,
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@ptrCast(&vk.SubmitInfo{
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.wait_semaphore_count = 1,
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.p_wait_semaphores = @ptrCast(&sem_ready),
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.p_wait_semaphores = @ptrCast(&frame.acquire),
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.p_wait_dst_stage_mask = @ptrCast(&vk.PipelineStageFlags{ .color_attachment_output_bit = true }),
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.command_buffer_count = 1,
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.p_command_buffers = @ptrCast(&cmd.handle),
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.signal_semaphore_count = 1,
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.p_signal_semaphores = @ptrCast(&sem_done),
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.p_signal_semaphores = @ptrCast(&frame.complete),
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}),
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fence,
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frame.fence,
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);
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_ = try au.Q.presentKHR(&vk.PresentInfoKHR{
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.wait_semaphore_count = 1,
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.p_wait_semaphores = &.{sem_done},
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.p_wait_semaphores = &.{frame.complete},
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.swapchain_count = 1,
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.p_swapchains = &.{sc.handle},
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.p_image_indices = &.{acq.image_index},
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.p_results = null,
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});
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}); // todo suboptimal?
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}
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try au.D.deviceWaitIdle();
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@@ -271,126 +296,126 @@ pub fn main() !void {
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// try gfx.uploadData(Index, dev.pdev, inst.vki, dev.dev, dev.vkd, dev.queue, dev.pool, index_buffer, &indices);
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}
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fn createPipeline(
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dev: vk.Device,
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layout: vk.PipelineLayout,
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format: vk.SurfaceFormatKHR,
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vkd: gfx.Device.Wrapper,
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) !vk.Pipeline {
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const vert = try vkd.createShaderModule(dev, &.{
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.code_size = shaders.triangle_vert.len,
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.p_code = @as([*]const u32, @ptrCast(&shaders.triangle_vert)),
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}, null);
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defer vkd.destroyShaderModule(dev, vert, null);
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const frag = try vkd.createShaderModule(dev, &.{
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.code_size = shaders.triangle_frag.len,
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.p_code = @as([*]const u32, @ptrCast(&shaders.triangle_frag)),
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}, null);
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defer vkd.destroyShaderModule(dev, frag, null);
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const pssci = [_]vk.PipelineShaderStageCreateInfo{
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.{
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.stage = .{ .vertex_bit = true },
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.module = vert,
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.p_name = "main",
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},
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.{
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.stage = .{ .fragment_bit = true },
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.module = frag,
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.p_name = "main",
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},
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};
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const color_blend_attachment_states = [_]vk.PipelineColorBlendAttachmentState{
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vk.PipelineColorBlendAttachmentState{
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.blend_enable = vk.FALSE,
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.src_color_blend_factor = .one,
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.dst_color_blend_factor = .zero,
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.color_blend_op = .add,
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.src_alpha_blend_factor = .one,
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.dst_alpha_blend_factor = .zero,
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.alpha_blend_op = .add,
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.color_write_mask = .{ .r_bit = true, .g_bit = true, .b_bit = true, .a_bit = true },
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},
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};
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const dynamic_states = [_]vk.DynamicState{
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.viewport,
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.scissor,
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};
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const create_infos = [_]vk.GraphicsPipelineCreateInfo{
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.{
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.flags = .{},
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.stage_count = @intCast(pssci.len),
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.p_stages = &pssci,
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.p_vertex_input_state = &vk.PipelineVertexInputStateCreateInfo{
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.vertex_binding_description_count = 1,
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.p_vertex_binding_descriptions = @ptrCast(&Vertex.binding_description),
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.vertex_attribute_description_count = Vertex.attribute_description.len,
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.p_vertex_attribute_descriptions = &Vertex.attribute_description,
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},
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.p_input_assembly_state = &vk.PipelineInputAssemblyStateCreateInfo{
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.topology = .triangle_list,
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.primitive_restart_enable = vk.FALSE,
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},
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.p_tessellation_state = null,
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.p_viewport_state = &vk.PipelineViewportStateCreateInfo{
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.viewport_count = 1,
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.p_viewports = undefined, // set in createCommandBuffers with cmdSetViewport
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.scissor_count = 1,
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.p_scissors = undefined, // set in createCommandBuffers with cmdSetScissor
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},
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.p_rasterization_state = &vk.PipelineRasterizationStateCreateInfo{
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.depth_clamp_enable = vk.FALSE,
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.rasterizer_discard_enable = vk.FALSE,
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.polygon_mode = .fill,
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.cull_mode = .{ .back_bit = true },
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.front_face = .counter_clockwise,
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.depth_bias_enable = vk.FALSE,
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.depth_bias_constant_factor = 0,
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.depth_bias_clamp = 0,
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.depth_bias_slope_factor = 0,
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.line_width = 1,
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},
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.p_multisample_state = &vk.PipelineMultisampleStateCreateInfo{
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.rasterization_samples = .{ .@"1_bit" = true },
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.sample_shading_enable = vk.FALSE,
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.min_sample_shading = 1,
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.alpha_to_coverage_enable = vk.FALSE,
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.alpha_to_one_enable = vk.FALSE,
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},
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.p_depth_stencil_state = null,
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.p_color_blend_state = &vk.PipelineColorBlendStateCreateInfo{
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.logic_op_enable = vk.FALSE,
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.logic_op = .copy,
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.attachment_count = @intCast(color_blend_attachment_states.len),
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.p_attachments = &color_blend_attachment_states,
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.blend_constants = [_]f32{ 0, 0, 0, 0 },
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},
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.p_dynamic_state = &vk.PipelineDynamicStateCreateInfo{
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.flags = .{},
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.dynamic_state_count = @intCast(dynamic_states.len),
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.p_dynamic_states = &dynamic_states,
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},
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.layout = layout,
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.render_pass = .null_handle,
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.subpass = 0,
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.base_pipeline_handle = .null_handle,
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.base_pipeline_index = -1,
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.p_next = &vk.PipelineRenderingCreateInfoKHR{
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.color_attachment_count = 1,
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.p_color_attachment_formats = @ptrCast(&format),
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.depth_attachment_format = .undefined,
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.stencil_attachment_format = .undefined,
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.view_mask = 0,
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},
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},
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};
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var pipelines: [create_infos.len]vk.Pipeline = undefined;
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_ = try vkd.createGraphicsPipelines(dev, .null_handle, @intCast(create_infos.len), &create_infos, null, &pipelines);
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std.debug.assert(pipelines.len == 1);
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return pipelines[0];
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}
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// fn createPipeline(
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// dev: vk.Device,
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// layout: vk.PipelineLayout,
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// format: vk.SurfaceFormatKHR,
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// vkd: gfx.Device.Wrapper,
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// ) !vk.Pipeline {
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// const vert = try vkd.createShaderModule(dev, &.{
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// .code_size = shaders.triangle_vert.len,
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// .p_code = @as([*]const u32, @ptrCast(&shaders.triangle_vert)),
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// }, null);
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// defer vkd.destroyShaderModule(dev, vert, null);
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//
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// const frag = try vkd.createShaderModule(dev, &.{
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// .code_size = shaders.triangle_frag.len,
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// .p_code = @as([*]const u32, @ptrCast(&shaders.triangle_frag)),
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// }, null);
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// defer vkd.destroyShaderModule(dev, frag, null);
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//
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// const pssci = [_]vk.PipelineShaderStageCreateInfo{
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// .{
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// .stage = .{ .vertex_bit = true },
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// .module = vert,
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// .p_name = "main",
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// },
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// .{
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// .stage = .{ .fragment_bit = true },
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// .module = frag,
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// .p_name = "main",
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// },
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// };
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//
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// const color_blend_attachment_states = [_]vk.PipelineColorBlendAttachmentState{
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// vk.PipelineColorBlendAttachmentState{
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// .blend_enable = vk.FALSE,
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// .src_color_blend_factor = .one,
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// .dst_color_blend_factor = .zero,
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// .color_blend_op = .add,
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// .src_alpha_blend_factor = .one,
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// .dst_alpha_blend_factor = .zero,
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// .alpha_blend_op = .add,
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// .color_write_mask = .{ .r_bit = true, .g_bit = true, .b_bit = true, .a_bit = true },
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// },
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// };
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//
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// const dynamic_states = [_]vk.DynamicState{
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// .viewport,
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// .scissor,
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// };
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//
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// const create_infos = [_]vk.GraphicsPipelineCreateInfo{
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// .{
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// .flags = .{},
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// .stage_count = @intCast(pssci.len),
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// .p_stages = &pssci,
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// .p_vertex_input_state = &vk.PipelineVertexInputStateCreateInfo{
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// .vertex_binding_description_count = 1,
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// .p_vertex_binding_descriptions = @ptrCast(&Vertex.binding_description),
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// .vertex_attribute_description_count = Vertex.attribute_description.len,
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// .p_vertex_attribute_descriptions = &Vertex.attribute_description,
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// },
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// .p_input_assembly_state = &vk.PipelineInputAssemblyStateCreateInfo{
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// .topology = .triangle_list,
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// .primitive_restart_enable = vk.FALSE,
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// },
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// .p_tessellation_state = null,
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// .p_viewport_state = &vk.PipelineViewportStateCreateInfo{
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// .viewport_count = 1,
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// .p_viewports = undefined, // set in createCommandBuffers with cmdSetViewport
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// .scissor_count = 1,
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// .p_scissors = undefined, // set in createCommandBuffers with cmdSetScissor
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// },
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// .p_rasterization_state = &vk.PipelineRasterizationStateCreateInfo{
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// .depth_clamp_enable = vk.FALSE,
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// .rasterizer_discard_enable = vk.FALSE,
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// .polygon_mode = .fill,
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// .cull_mode = .{ .back_bit = true },
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// .front_face = .counter_clockwise,
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// .depth_bias_enable = vk.FALSE,
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// .depth_bias_constant_factor = 0,
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// .depth_bias_clamp = 0,
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// .depth_bias_slope_factor = 0,
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// .line_width = 1,
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// },
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// .p_multisample_state = &vk.PipelineMultisampleStateCreateInfo{
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// .rasterization_samples = .{ .@"1_bit" = true },
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// .sample_shading_enable = vk.FALSE,
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// .min_sample_shading = 1,
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// .alpha_to_coverage_enable = vk.FALSE,
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// .alpha_to_one_enable = vk.FALSE,
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// },
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// .p_depth_stencil_state = null,
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// .p_color_blend_state = &vk.PipelineColorBlendStateCreateInfo{
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// .logic_op_enable = vk.FALSE,
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// .logic_op = .copy,
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// .attachment_count = @intCast(color_blend_attachment_states.len),
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// .p_attachments = &color_blend_attachment_states,
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// .blend_constants = [_]f32{ 0, 0, 0, 0 },
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// },
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// .p_dynamic_state = &vk.PipelineDynamicStateCreateInfo{
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// .flags = .{},
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// .dynamic_state_count = @intCast(dynamic_states.len),
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// .p_dynamic_states = &dynamic_states,
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// },
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// .layout = layout,
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// .render_pass = .null_handle,
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// .subpass = 0,
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// .base_pipeline_handle = .null_handle,
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// .base_pipeline_index = -1,
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// .p_next = &vk.PipelineRenderingCreateInfoKHR{
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// .color_attachment_count = 1,
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// .p_color_attachment_formats = @ptrCast(&format),
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// .depth_attachment_format = .undefined,
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// .stencil_attachment_format = .undefined,
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// .view_mask = 0,
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// },
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// },
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// };
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//
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// var pipelines: [create_infos.len]vk.Pipeline = undefined;
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// _ = try vkd.createGraphicsPipelines(dev, .null_handle, @intCast(create_infos.len), &create_infos, null, &pipelines);
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// std.debug.assert(pipelines.len == 1);
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// return pipelines[0];
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// }
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