so close...
This commit is contained in:
parent
6a42ef8868
commit
4ff71501f1
88
build.zig
88
build.zig
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@ -1,6 +1,80 @@
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const std = @import("std");
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const pkgs = @import("deps.zig").pkgs;
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const Step = std.build.Step;
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const Builder = std.build.Builder;
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const glfw = @import("deps.zig").pkgs.glfw;
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const build_pkgs = @import("deps.zig").build_pkgs;
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const build_glfw = build_pkgs.build_glfw;
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const vkgen = build_pkgs.build_vulkan;
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pub const ResourceGenStep = struct {
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step: Step,
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shader_step: *vkgen.ShaderCompileStep,
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builder: *Builder,
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package: std.build.Pkg,
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output_file: std.build.GeneratedFile,
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resources: std.ArrayList(u8),
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pub fn init(builder: *Builder, out: []const u8) *ResourceGenStep {
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const self = builder.allocator.create(ResourceGenStep) catch unreachable;
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const full_out_path = std.fs.path.join(builder.allocator, &[_][]const u8{
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builder.build_root,
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out,
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}) catch unreachable;
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self.* = .{
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.step = Step.init(.custom, "resources", builder.allocator, make),
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.shader_step = vkgen.ShaderCompileStep.init(builder, &[_][]const u8{ "glslc", "--target-env=vulkan1.2" }, ""),
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.builder = builder,
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.package = .{
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.name = "resources",
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.source = .{ .generated = &self.output_file },
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.dependencies = null,
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},
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.output_file = .{
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.step = &self.step,
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.path = full_out_path,
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},
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.resources = std.ArrayList(u8).init(builder.allocator),
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};
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self.step.dependOn(&self.shader_step.step);
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return self;
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}
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fn renderPath(path: []const u8, writer: anytype) void {
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const separators = &[_]u8{ std.fs.path.sep_windows, std.fs.path.sep_posix };
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var i: usize = 0;
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while (std.mem.indexOfAnyPos(u8, path, i, separators)) |j| {
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writer.writeAll(path[i..j]) catch unreachable;
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switch (std.fs.path.sep) {
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std.fs.path.sep_windows => writer.writeAll("\\\\") catch unreachable,
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std.fs.path.sep_posix => writer.writeByte(std.fs.path.sep_posix) catch unreachable,
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else => unreachable,
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}
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i = j + 1;
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}
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writer.writeAll(path[i..]) catch unreachable;
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}
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pub fn addShader(self: *ResourceGenStep, name: []const u8, source: []const u8) void {
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const shader_out_path = self.shader_step.add(source);
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var writer = self.resources.writer();
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writer.print("pub const {s} = @embedFile(\"", .{name}) catch unreachable;
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renderPath(shader_out_path, writer);
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writer.writeAll("\");\n") catch unreachable;
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}
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fn make(step: *Step) !void {
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const self = @fieldParentPtr(ResourceGenStep, "step", step);
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const cwd = std.fs.cwd();
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const dir = std.fs.path.dirname(self.output_file.path.?).?;
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try cwd.makePath(dir);
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try cwd.writeFile(self.output_file.path.?, self.resources.items);
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}
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};
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pub fn build(b: *std.build.Builder) void {
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const target = b.standardTargetOptions(.{});
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@ -10,10 +84,16 @@ pub fn build(b: *std.build.Builder) void {
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exe.setTarget(target);
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exe.setBuildMode(mode);
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const gen = build_pkgs.build_vulkan.VkGenerateStep.init(b, "etc/vk.xml", "vk.zig");
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exe.addPackage(pkgs.glfw);
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const gen = vkgen.VkGenerateStep.init(b, "etc/vk.xml", "vk.zig");
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exe.addPackage(glfw);
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exe.addPackage(gen.package);
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build_pkgs.build_glfw.link(b, exe, .{});
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build_glfw.link(b, exe, .{});
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const res = ResourceGenStep.init(b, "resources.zig");
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res.addShader("test_frag", "src/shaders/test.frag");
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res.addShader("triangle_vert", "src/shaders/triangle.vert");
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res.addShader("triangle_frag", "src/shaders/triangle.frag");
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exe.addPackage(res.package);
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exe.install();
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503
src/main.zig
503
src/main.zig
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@ -1,14 +1,515 @@
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const std = @import("std");
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const glfw = @import("glfw");
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const vk = @import("vulkan");
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const resources = @import("resources");
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const GraphicsContext = @import("render/graphics_context.zig").GraphicsContext;
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const Swapchain = @import("render/swapchain.zig").Swapchain;
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// TODO:
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const Allocator = std.mem.Allocator;
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const app_name = "efemra";
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const Vertex = struct {
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const binding_description = vk.VertexInputBindingDescription{
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.binding = 0,
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.stride = @sizeOf(Vertex),
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.input_rate = .vertex,
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};
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const attribute_description = [_]vk.VertexInputAttributeDescription{
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.{
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.binding = 0,
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.location = 0,
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.format = .r32g32_sfloat,
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.offset = @offsetOf(Vertex, "pos"),
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},
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.{
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.binding = 0,
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.location = 1,
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.format = .r32g32b32_sfloat,
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.offset = @offsetOf(Vertex, "color"),
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},
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};
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pos: [2]f32,
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color: [3]f32,
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};
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const vertices = [_]Vertex{
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.{ .pos = .{ 0, -0.5 }, .color = .{ 1, 0, 0 } },
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.{ .pos = .{ 0.5, 0.5 }, .color = .{ 0, 1, 0 } },
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.{ .pos = .{ -0.5, 0.5 }, .color = .{ 0, 0, 1 } },
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};
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pub fn main() !void {
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try glfw.init(.{});
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defer glfw.terminate();
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const window = try glfw.Window.create(1280, 720, "YOOOO", null, null, .{});
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var extent = vk.Extent2D{ .width = 1280, .height = 720 };
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var window = try glfw.Window.create(extent.height, extent.width, app_name, null, null, .{});
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defer window.destroy();
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// temp allocator
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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const gc = try GraphicsContext.init(allocator, app_name, &window);
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defer gc.deinit();
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std.debug.print("Using device: {s}\n", .{gc.deviceName()});
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var swapchain = try Swapchain.init(&gc, allocator, extent);
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defer swapchain.deinit();
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const pipeline_layout = try gc.vkd.createPipelineLayout(gc.dev, &.{
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.flags = .{},
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.set_layout_count = 0,
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.p_set_layouts = undefined,
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.push_constant_range_count = 0,
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.p_push_constant_ranges = undefined,
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}, null);
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defer gc.vkd.destroyPipelineLayout(gc.dev, pipeline_layout, null);
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const render_pass = try createRenderPass(&gc, swapchain);
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defer gc.vkd.destroyRenderPass(gc.dev, render_pass, null);
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const pipeline = try createPipeline(&gc, pipeline_layout, render_pass);
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defer gc.vkd.destroyPipeline(gc.dev, pipeline, null);
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var framebuffers = try createFramebuffers(&gc, allocator, render_pass, swapchain);
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defer destroyFramebuffers(&gc, allocator, framebuffers);
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const pool = try gc.vkd.createCommandPool(gc.dev, &.{
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.flags = .{},
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.queue_family_index = gc.graphics_queue.family,
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}, null);
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defer gc.vkd.destroyCommandPool(gc.dev, pool, null);
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const buffer = try gc.vkd.createBuffer(gc.dev, &.{
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.flags = .{},
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.size = @sizeOf(@TypeOf(vertices)),
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.usage = .{ .transfer_dst_bit = true, .vertex_buffer_bit = true },
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.sharing_mode = .exclusive,
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.queue_family_index_count = 0,
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.p_queue_family_indices = undefined,
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}, null);
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defer gc.vkd.destroyBuffer(gc.dev, buffer, null);
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const mem_reqs = gc.vkd.getBufferMemoryRequirements(gc.dev, buffer);
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const memory = try gc.allocate(mem_reqs, .{ .device_local_bit = true });
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defer gc.vkd.freeMemory(gc.dev, memory, null);
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try gc.vkd.bindBufferMemory(gc.dev, buffer, memory, 0);
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try uploadVertices(&gc, pool, buffer);
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var cmdbufs = try createCommandBuffers(
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&gc,
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pool,
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allocator,
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buffer,
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swapchain.extent,
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render_pass,
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pipeline,
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framebuffers,
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);
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defer destroyCommandBuffers(&gc, pool, allocator, cmdbufs);
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while (!window.shouldClose()) {
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const cmdbuf = cmdbufs[swapchain.image_index];
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const state = swapchain.present(cmdbuf) catch |err| switch (err) {
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error.OutOfDateKHR => Swapchain.PresentState.suboptimal,
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else => |narrow| return narrow,
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};
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const size = try window.getSize();
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if (state == .suboptimal or extent.width != size.width or extent.height != size.height) {
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extent.width = size.width;
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extent.height = size.height;
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try swapchain.recreate(extent);
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destroyFramebuffers(&gc, allocator, framebuffers);
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framebuffers = try createFramebuffers(&gc, allocator, render_pass, swapchain);
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destroyCommandBuffers(&gc, pool, allocator, cmdbufs);
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cmdbufs = try createCommandBuffers(
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&gc,
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pool,
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allocator,
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buffer,
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swapchain.extent,
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render_pass,
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pipeline,
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framebuffers,
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);
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}
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try glfw.pollEvents();
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}
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try swapchain.waitForAllFences();
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}
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fn uploadVertices(gc: *const GraphicsContext, pool: vk.CommandPool, buffer: vk.Buffer) !void {
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const staging_buffer = try gc.vkd.createBuffer(gc.dev, &.{
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.flags = .{},
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.size = @sizeOf(@TypeOf(vertices)),
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.usage = .{ .transfer_src_bit = true },
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.sharing_mode = .exclusive,
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.queue_family_index_count = 0,
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.p_queue_family_indices = undefined,
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}, null);
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defer gc.vkd.destroyBuffer(gc.dev, staging_buffer, null);
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const mem_reqs = gc.vkd.getBufferMemoryRequirements(gc.dev, staging_buffer);
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const staging_memory = try gc.allocate(mem_reqs, .{ .host_visible_bit = true, .host_coherent_bit = true });
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defer gc.vkd.freeMemory(gc.dev, staging_memory, null);
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try gc.vkd.bindBufferMemory(gc.dev, staging_buffer, staging_memory, 0);
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{
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const data = try gc.vkd.mapMemory(gc.dev, staging_memory, 0, vk.WHOLE_SIZE, .{});
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defer gc.vkd.unmapMemory(gc.dev, staging_memory);
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const gpu_vertices = @ptrCast([*]Vertex, @alignCast(@alignOf(Vertex), data));
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for (vertices) |vertex, i| {
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gpu_vertices[i] = vertex;
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}
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}
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try copyBuffer(gc, pool, buffer, staging_buffer, @sizeOf(@TypeOf(vertices)));
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}
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fn copyBuffer(gc: *const GraphicsContext, pool: vk.CommandPool, dst: vk.Buffer, src: vk.Buffer, size: vk.DeviceSize) !void {
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var cmdbuf: vk.CommandBuffer = undefined;
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try gc.vkd.allocateCommandBuffers(gc.dev, &.{
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.command_pool = pool,
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.level = .primary,
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.command_buffer_count = 1,
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}, @ptrCast([*]vk.CommandBuffer, &cmdbuf));
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defer gc.vkd.freeCommandBuffers(gc.dev, pool, 1, @ptrCast([*]const vk.CommandBuffer, &cmdbuf));
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try gc.vkd.beginCommandBuffer(cmdbuf, &.{
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.flags = .{ .one_time_submit_bit = true },
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.p_inheritance_info = null,
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});
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const region = vk.BufferCopy{
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.src_offset = 0,
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.dst_offset = 0,
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.size = size,
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};
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gc.vkd.cmdCopyBuffer(cmdbuf, src, dst, 1, @ptrCast([*]const vk.BufferCopy, ®ion));
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try gc.vkd.endCommandBuffer(cmdbuf);
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const si = vk.SubmitInfo{
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.wait_semaphore_count = 0,
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.p_wait_semaphores = undefined,
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.p_wait_dst_stage_mask = undefined,
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.command_buffer_count = 1,
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.p_command_buffers = @ptrCast([*]const vk.CommandBuffer, &cmdbuf),
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.signal_semaphore_count = 0,
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.p_signal_semaphores = undefined,
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};
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try gc.vkd.queueSubmit(gc.graphics_queue.handle, 1, @ptrCast([*]const vk.SubmitInfo, &si), .null_handle);
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try gc.vkd.queueWaitIdle(gc.graphics_queue.handle);
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}
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fn createCommandBuffers(
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gc: *const GraphicsContext,
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pool: vk.CommandPool,
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allocator: Allocator,
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buffer: vk.Buffer,
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extent: vk.Extent2D,
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render_pass: vk.RenderPass,
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pipeline: vk.Pipeline,
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framebuffers: []vk.Framebuffer,
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) ![]vk.CommandBuffer {
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const cmdbufs = try allocator.alloc(vk.CommandBuffer, framebuffers.len);
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errdefer allocator.free(cmdbufs);
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_ = pipeline;
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_ = render_pass;
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_ = extent;
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_ = buffer;
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_ = pool;
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_ = gc;
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try gc.vkd.allocateCommandBuffers(gc.dev, &.{
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.command_pool = pool,
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.level = .primary,
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.command_buffer_count = @truncate(u32, cmdbufs.len),
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}, cmdbufs.ptr);
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errdefer gc.vkd.freeCommandBuffers(gc.dev, pool, @truncate(u32, cmdbufs.len), cmdbufs.ptr);
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const clear = vk.ClearValue{
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.color = .{ .float_32 = .{ 0, 0, 0, 1 } },
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};
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const viewport = vk.Viewport{
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.x = 0,
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.y = 0,
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.width = @intToFloat(f32, extent.width),
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.height = @intToFloat(f32, extent.height),
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.min_depth = 0,
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.max_depth = 1,
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};
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const scissor = vk.Rect2D{
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.offset = .{ .x = 0, .y = 0 },
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.extent = extent,
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};
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for (cmdbufs) |cmdbuf, i| {
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_ = i;
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try gc.vkd.beginCommandBuffer(cmdbuf, &.{
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.flags = .{},
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.p_inheritance_info = null,
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});
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gc.vkd.cmdSetViewport(cmdbuf, 0, 1, @ptrCast([*]const vk.Viewport, &viewport));
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gc.vkd.cmdSetScissor(cmdbuf, 0, 1, @ptrCast([*]const vk.Rect2D, &scissor));
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// This needs to be a separate definition - see https://github.com/ziglang/zig/issues/7627.
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const render_area = vk.Rect2D{
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.offset = .{ .x = 0, .y = 0 },
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.extent = extent,
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};
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gc.vkd.cmdBeginRenderPass(cmdbuf, &.{
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.render_pass = render_pass,
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.framebuffer = framebuffers[i],
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.render_area = render_area,
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.clear_value_count = 1,
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.p_clear_values = @ptrCast([*]const vk.ClearValue, &clear),
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}, .@"inline");
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gc.vkd.cmdBindPipeline(cmdbuf, .graphics, pipeline);
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const offset = [_]vk.DeviceSize{0};
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gc.vkd.cmdBindVertexBuffers(cmdbuf, 0, 1, @ptrCast([*]const vk.Buffer, &buffer), &offset);
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gc.vkd.cmdDraw(cmdbuf, vertices.len, 1, 0, 0);
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gc.vkd.cmdEndRenderPass(cmdbuf);
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try gc.vkd.endCommandBuffer(cmdbuf);
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}
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return cmdbufs;
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}
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|
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fn destroyCommandBuffers(gc: *const GraphicsContext, pool: vk.CommandPool, allocator: Allocator, cmdbufs: []vk.CommandBuffer) void {
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gc.vkd.freeCommandBuffers(gc.dev, pool, @truncate(u32, cmdbufs.len), cmdbufs.ptr);
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allocator.free(cmdbufs);
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}
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|
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fn createFramebuffers(gc: *const GraphicsContext, allocator: Allocator, render_pass: vk.RenderPass, swapchain: Swapchain) ![]vk.Framebuffer {
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const framebuffers = try allocator.alloc(vk.Framebuffer, swapchain.swap_images.len);
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errdefer allocator.free(framebuffers);
|
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|
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var i: usize = 0;
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errdefer for (framebuffers[0..i]) |fb| gc.vkd.destroyFramebuffer(gc.dev, fb, null);
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|
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for (framebuffers) |*fb| {
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fb.* = try gc.vkd.createFramebuffer(gc.dev, &.{
|
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.flags = .{},
|
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.render_pass = render_pass,
|
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.attachment_count = 1,
|
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.p_attachments = @ptrCast([*]const vk.ImageView, &swapchain.swap_images[i].view),
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.width = swapchain.extent.width,
|
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.height = swapchain.extent.height,
|
||||
.layers = 1,
|
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}, null);
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i += 1;
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}
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||||
|
||||
return framebuffers;
|
||||
}
|
||||
|
||||
fn destroyFramebuffers(gc: *const GraphicsContext, allocator: Allocator, framebuffers: []const vk.Framebuffer) void {
|
||||
for (framebuffers) |fb| gc.vkd.destroyFramebuffer(gc.dev, fb, null);
|
||||
allocator.free(framebuffers);
|
||||
}
|
||||
|
||||
fn createRenderPass(gc: *const GraphicsContext, swapchain: Swapchain) !vk.RenderPass {
|
||||
const color_attachment = vk.AttachmentDescription{
|
||||
.flags = .{},
|
||||
.format = swapchain.surface_format.format,
|
||||
.samples = .{ .@"1_bit" = true },
|
||||
.load_op = .clear,
|
||||
.store_op = .store,
|
||||
.stencil_load_op = .dont_care,
|
||||
.stencil_store_op = .dont_care,
|
||||
.initial_layout = .@"undefined",
|
||||
.final_layout = .present_src_khr,
|
||||
};
|
||||
|
||||
const color_attachment_ref = vk.AttachmentReference{
|
||||
.attachment = 0,
|
||||
.layout = .color_attachment_optimal,
|
||||
};
|
||||
|
||||
const subpass = vk.SubpassDescription{
|
||||
.flags = .{},
|
||||
.pipeline_bind_point = .graphics,
|
||||
.input_attachment_count = 0,
|
||||
.p_input_attachments = undefined,
|
||||
.color_attachment_count = 1,
|
||||
.p_color_attachments = @ptrCast([*]const vk.AttachmentReference, &color_attachment_ref),
|
||||
.p_resolve_attachments = null,
|
||||
.p_depth_stencil_attachment = null,
|
||||
.preserve_attachment_count = 0,
|
||||
.p_preserve_attachments = undefined,
|
||||
};
|
||||
|
||||
return try gc.vkd.createRenderPass(gc.dev, &.{
|
||||
.flags = .{},
|
||||
.attachment_count = 1,
|
||||
.p_attachments = @ptrCast([*]const vk.AttachmentDescription, &color_attachment),
|
||||
.subpass_count = 1,
|
||||
.p_subpasses = @ptrCast([*]const vk.SubpassDescription, &subpass),
|
||||
.dependency_count = 0,
|
||||
.p_dependencies = undefined,
|
||||
}, null);
|
||||
}
|
||||
|
||||
fn createPipeline(
|
||||
gc: *const GraphicsContext,
|
||||
layout: vk.PipelineLayout,
|
||||
render_pass: vk.RenderPass,
|
||||
) !vk.Pipeline {
|
||||
const vert = try gc.vkd.createShaderModule(gc.dev, &.{
|
||||
.flags = .{},
|
||||
.code_size = resources.triangle_vert.len,
|
||||
.p_code = @ptrCast([*]const u32, resources.triangle_vert),
|
||||
}, null);
|
||||
defer gc.vkd.destroyShaderModule(gc.dev, vert, null);
|
||||
|
||||
const frag = try gc.vkd.createShaderModule(gc.dev, &.{
|
||||
.flags = .{},
|
||||
.code_size = resources.triangle_frag.len,
|
||||
.p_code = @ptrCast([*]const u32, resources.triangle_frag),
|
||||
}, null);
|
||||
defer gc.vkd.destroyShaderModule(gc.dev, frag, null);
|
||||
|
||||
const pssci = [_]vk.PipelineShaderStageCreateInfo{
|
||||
.{
|
||||
.flags = .{},
|
||||
.stage = .{ .vertex_bit = true },
|
||||
.module = vert,
|
||||
.p_name = "main",
|
||||
.p_specialization_info = null,
|
||||
},
|
||||
.{
|
||||
.flags = .{},
|
||||
.stage = .{ .fragment_bit = true },
|
||||
.module = frag,
|
||||
.p_name = "main",
|
||||
.p_specialization_info = null,
|
||||
},
|
||||
};
|
||||
|
||||
const pvisci = vk.PipelineVertexInputStateCreateInfo{
|
||||
.flags = .{},
|
||||
.vertex_binding_description_count = 1,
|
||||
.p_vertex_binding_descriptions = @ptrCast([*]const vk.VertexInputBindingDescription, &Vertex.binding_description),
|
||||
.vertex_attribute_description_count = Vertex.attribute_description.len,
|
||||
.p_vertex_attribute_descriptions = &Vertex.attribute_description,
|
||||
};
|
||||
|
||||
const piasci = vk.PipelineInputAssemblyStateCreateInfo{
|
||||
.flags = .{},
|
||||
.topology = .triangle_list,
|
||||
.primitive_restart_enable = vk.FALSE,
|
||||
};
|
||||
|
||||
const pvsci = vk.PipelineViewportStateCreateInfo{
|
||||
.flags = .{},
|
||||
.viewport_count = 1,
|
||||
.p_viewports = undefined, // set in createCommandBuffers iwth cmdSetViewport
|
||||
.scissor_count = 1,
|
||||
.p_scissors = undefined, //set in createCommandBuffers
|
||||
};
|
||||
|
||||
const prsci = vk.PipelineRasterizationStateCreateInfo{
|
||||
.flags = .{},
|
||||
.depth_clamp_enable = vk.FALSE,
|
||||
.rasterizer_discard_enable = vk.FALSE,
|
||||
.polygon_mode = .fill,
|
||||
.cull_mode = .{ .back_bit = true },
|
||||
.front_face = .clockwise,
|
||||
.depth_bias_enable = vk.FALSE,
|
||||
.depth_bias_constant_factor = 0,
|
||||
.depth_bias_clamp = 0,
|
||||
.depth_bias_slope_factor = 0,
|
||||
.line_width = 1,
|
||||
};
|
||||
|
||||
const pmsci = vk.PipelineMultisampleStateCreateInfo{
|
||||
.flags = .{},
|
||||
.rasterization_samples = .{ .@"1_bit" = true },
|
||||
.sample_shading_enable = vk.FALSE,
|
||||
.min_sample_shading = 1,
|
||||
.p_sample_mask = null,
|
||||
.alpha_to_coverage_enable = vk.FALSE,
|
||||
.alpha_to_one_enable = vk.FALSE,
|
||||
};
|
||||
|
||||
const pcbas = vk.PipelineColorBlendAttachmentState{
|
||||
.blend_enable = vk.FALSE,
|
||||
.src_color_blend_factor = .one,
|
||||
.dst_color_blend_factor = .zero,
|
||||
.color_blend_op = .add,
|
||||
.src_alpha_blend_factor = .one,
|
||||
.dst_alpha_blend_factor = .zero,
|
||||
.alpha_blend_op = .add,
|
||||
.color_write_mask = .{ .r_bit = true, .g_bit = true, .b_bit = true, .a_bit = true },
|
||||
};
|
||||
|
||||
const pcbsci = vk.PipelineColorBlendStateCreateInfo{
|
||||
.flags = .{},
|
||||
.logic_op_enable = vk.FALSE,
|
||||
.logic_op = .copy,
|
||||
.attachment_count = 1,
|
||||
.p_attachments = @ptrCast([*]const vk.PipelineColorBlendAttachmentState, &pcbas),
|
||||
.blend_constants = [_]f32{ 0, 0, 0, 0 },
|
||||
};
|
||||
|
||||
const dynstate = [_]vk.DynamicState{ .viewport, .scissor };
|
||||
const pdsci = vk.PipelineDynamicStateCreateInfo{
|
||||
.flags = .{},
|
||||
.dynamic_state_count = dynstate.len,
|
||||
.p_dynamic_states = &dynstate,
|
||||
};
|
||||
|
||||
const gpci = vk.GraphicsPipelineCreateInfo{
|
||||
.flags = .{},
|
||||
.stage_count = 2,
|
||||
.p_stages = &pssci,
|
||||
.p_vertex_input_state = &pvisci,
|
||||
.p_input_assembly_state = &piasci,
|
||||
.p_tessellation_state = null,
|
||||
.p_viewport_state = &pvsci,
|
||||
.p_rasterization_state = &prsci,
|
||||
.p_multisample_state = &pmsci,
|
||||
.p_depth_stencil_state = null,
|
||||
.p_color_blend_state = &pcbsci,
|
||||
.p_dynamic_state = &pdsci,
|
||||
.layout = layout,
|
||||
.render_pass = render_pass,
|
||||
.subpass = 0,
|
||||
.base_pipeline_handle = .null_handle,
|
||||
.base_pipeline_index = -1,
|
||||
};
|
||||
|
||||
var pipeline: vk.Pipeline = undefined;
|
||||
_ = try gc.vkd.createGraphicsPipelines(
|
||||
gc.dev,
|
||||
.null_handle,
|
||||
1,
|
||||
@ptrCast([*]const vk.GraphicsPipelineCreateInfo, &gpci),
|
||||
null,
|
||||
@ptrCast([*]vk.Pipeline, &pipeline),
|
||||
);
|
||||
return pipeline;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,357 @@
|
|||
const std = @import("std");
|
||||
const vk = @import("vulkan");
|
||||
const glfw = @import("glfw");
|
||||
const Allocator = std.mem.Allocator;
|
||||
|
||||
const required_device_extensions = [_][*:0]const u8{vk.extension_info.khr_swapchain.name};
|
||||
|
||||
const BaseDispatch = vk.BaseWrapper(.{
|
||||
.createInstance = true,
|
||||
});
|
||||
|
||||
const InstanceDispatch = vk.InstanceWrapper(.{
|
||||
.destroyInstance = true,
|
||||
.createDevice = true,
|
||||
.destroySurfaceKHR = true,
|
||||
.enumeratePhysicalDevices = true,
|
||||
.getPhysicalDeviceProperties = true,
|
||||
.enumerateDeviceExtensionProperties = true,
|
||||
.getPhysicalDeviceSurfaceFormatsKHR = true,
|
||||
.getPhysicalDeviceSurfacePresentModesKHR = true,
|
||||
.getPhysicalDeviceSurfaceCapabilitiesKHR = true,
|
||||
.getPhysicalDeviceQueueFamilyProperties = true,
|
||||
.getPhysicalDeviceSurfaceSupportKHR = true,
|
||||
.getPhysicalDeviceMemoryProperties = true,
|
||||
.getDeviceProcAddr = true,
|
||||
});
|
||||
|
||||
const DeviceDispatch = vk.DeviceWrapper(.{
|
||||
.destroyDevice = true,
|
||||
.getDeviceQueue = true,
|
||||
.createSemaphore = true,
|
||||
.createFence = true,
|
||||
.createImageView = true,
|
||||
.destroyImageView = true,
|
||||
.destroySemaphore = true,
|
||||
.destroyFence = true,
|
||||
.getSwapchainImagesKHR = true,
|
||||
.createSwapchainKHR = true,
|
||||
.destroySwapchainKHR = true,
|
||||
.acquireNextImageKHR = true,
|
||||
.deviceWaitIdle = true,
|
||||
.waitForFences = true,
|
||||
.resetFences = true,
|
||||
.queueSubmit = true,
|
||||
.queuePresentKHR = true,
|
||||
.createCommandPool = true,
|
||||
.destroyCommandPool = true,
|
||||
.allocateCommandBuffers = true,
|
||||
.freeCommandBuffers = true,
|
||||
.queueWaitIdle = true,
|
||||
.createShaderModule = true,
|
||||
.destroyShaderModule = true,
|
||||
.createPipelineLayout = true,
|
||||
.destroyPipelineLayout = true,
|
||||
.createRenderPass = true,
|
||||
.destroyRenderPass = true,
|
||||
.createGraphicsPipelines = true,
|
||||
.destroyPipeline = true,
|
||||
.createFramebuffer = true,
|
||||
.destroyFramebuffer = true,
|
||||
.beginCommandBuffer = true,
|
||||
.endCommandBuffer = true,
|
||||
.allocateMemory = true,
|
||||
.freeMemory = true,
|
||||
.createBuffer = true,
|
||||
.destroyBuffer = true,
|
||||
.getBufferMemoryRequirements = true,
|
||||
.mapMemory = true,
|
||||
.unmapMemory = true,
|
||||
.bindBufferMemory = true,
|
||||
.cmdBeginRenderPass = true,
|
||||
.cmdEndRenderPass = true,
|
||||
.cmdBindPipeline = true,
|
||||
.cmdDraw = true,
|
||||
.cmdSetViewport = true,
|
||||
.cmdSetScissor = true,
|
||||
.cmdBindVertexBuffers = true,
|
||||
.cmdCopyBuffer = true,
|
||||
});
|
||||
|
||||
pub const GraphicsContext = struct {
|
||||
vkb: BaseDispatch,
|
||||
vki: InstanceDispatch,
|
||||
vkd: DeviceDispatch,
|
||||
|
||||
instance: vk.Instance,
|
||||
surface: vk.SurfaceKHR,
|
||||
pdev: vk.PhysicalDevice,
|
||||
props: vk.PhysicalDeviceProperties,
|
||||
mem_props: vk.PhysicalDeviceMemoryProperties,
|
||||
|
||||
dev: vk.Device,
|
||||
graphics_queue: Queue,
|
||||
present_queue: Queue,
|
||||
|
||||
pub fn init(allocator: Allocator, app_name: [*:0]const u8, window: *glfw.Window) !GraphicsContext {
|
||||
var self: GraphicsContext = undefined;
|
||||
self.vkb = try BaseDispatch.load(getInstanceProcWrapper);
|
||||
|
||||
const glfw_exts = try glfw.getRequiredInstanceExtensions();
|
||||
|
||||
const app_info = vk.ApplicationInfo{
|
||||
.p_application_name = app_name,
|
||||
.application_version = vk.makeApiVersion(0, 0, 0, 0),
|
||||
.p_engine_name = app_name,
|
||||
.engine_version = vk.makeApiVersion(0, 0, 0, 0),
|
||||
.api_version = vk.API_VERSION_1_2,
|
||||
};
|
||||
|
||||
self.instance = try self.vkb.createInstance(&.{
|
||||
.flags = .{},
|
||||
.p_application_info = &app_info,
|
||||
.enabled_layer_count = 0,
|
||||
.pp_enabled_layer_names = undefined,
|
||||
.enabled_extension_count = @intCast(u32, glfw_exts.len),
|
||||
.pp_enabled_extension_names = @ptrCast([*]const [*:0]const u8, glfw_exts),
|
||||
}, null);
|
||||
|
||||
self.vki = try InstanceDispatch.load(self.instance, glfw.getInstanceProcAddress);
|
||||
errdefer self.vki.destroyInstance(self.instance, null);
|
||||
|
||||
self.surface = try createSurface(self.instance, window);
|
||||
errdefer self.vki.destroySurfaceKHR(self.instance, self.surface, null);
|
||||
|
||||
const candidate = try pickPhysicalDevice(self.vki, self.instance, allocator, self.surface);
|
||||
self.pdev = candidate.pdev;
|
||||
self.props = candidate.props;
|
||||
self.dev = try initializeCandidate(self.vki, candidate);
|
||||
self.vkd = try DeviceDispatch.load(self.dev, self.vki.dispatch.vkGetDeviceProcAddr);
|
||||
errdefer self.vkd.destroyDevice(self.dev, null);
|
||||
|
||||
self.graphics_queue = Queue.init(self.vkd, self.dev, candidate.queues.graphics_family);
|
||||
self.present_queue = Queue.init(self.vkd, self.dev, candidate.queues.present_family);
|
||||
|
||||
self.mem_props = self.vki.getPhysicalDeviceMemoryProperties(self.pdev);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn deinit(self: GraphicsContext) void {
|
||||
self.vkd.destroyDevice(self.dev, null);
|
||||
self.vki.destroySurfaceKHR(self.instance, self.surface, null);
|
||||
self.vki.destroyInstance(self.instance, null);
|
||||
}
|
||||
|
||||
pub fn deviceName(self: GraphicsContext) []const u8 {
|
||||
const len = std.mem.indexOfScalar(u8, &self.props.device_name, 0).?;
|
||||
return self.props.device_name[0..len];
|
||||
}
|
||||
|
||||
pub fn findMemoryTypeIndex(self: GraphicsContext, memory_type_bits: u32, flags: vk.MemoryPropertyFlags) !u32 {
|
||||
// wow wtf is this stuff
|
||||
for (self.mem_props.memory_types[0..self.mem_props.memory_type_count]) |mem_type, i| {
|
||||
if (memory_type_bits & (@as(u32, 1) << @truncate(u5, i)) != 0 and mem_type.property_flags.contains(flags)) {
|
||||
return @truncate(u32, i);
|
||||
}
|
||||
}
|
||||
|
||||
return error.NoSuitableMemoryType;
|
||||
}
|
||||
|
||||
pub fn allocate(self: GraphicsContext, requirements: vk.MemoryRequirements, flags: vk.MemoryPropertyFlags) !vk.DeviceMemory {
|
||||
return try self.vkd.allocateMemory(self.dev, &.{
|
||||
.allocation_size = requirements.size,
|
||||
.memory_type_index = try self.findMemoryTypeIndex(requirements.memory_type_bits, flags),
|
||||
}, null);
|
||||
}
|
||||
|
||||
fn getInstanceProcWrapper(inst: vk.Instance, name: [*:0]const u8) ?glfw.VKProc {
|
||||
return glfw.getInstanceProcAddress(&inst, name);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Queue = struct {
|
||||
handle: vk.Queue,
|
||||
family: u32,
|
||||
|
||||
fn init(vkd: DeviceDispatch, dev: vk.Device, family: u32) Queue {
|
||||
return .{
|
||||
.handle = vkd.getDeviceQueue(dev, family, 0),
|
||||
.family = family,
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
fn createSurface(instance: vk.Instance, window: *glfw.Window) !vk.SurfaceKHR {
|
||||
var surface: vk.SurfaceKHR = undefined;
|
||||
if (glfw.createWindowSurface(instance, window.*, null, &surface)) {
|
||||
return surface;
|
||||
} else |_| return error.SurfaceInitFailed;
|
||||
}
|
||||
|
||||
fn initializeCandidate(vki: InstanceDispatch, candidate: DeviceCandidate) !vk.Device {
|
||||
const priority = [_]f32{1};
|
||||
const qci = [_]vk.DeviceQueueCreateInfo{
|
||||
.{
|
||||
.flags = .{},
|
||||
.queue_family_index = candidate.queues.graphics_family,
|
||||
.queue_count = 1,
|
||||
.p_queue_priorities = &priority,
|
||||
},
|
||||
.{
|
||||
.flags = .{},
|
||||
.queue_family_index = candidate.queues.present_family,
|
||||
.queue_count = 1,
|
||||
.p_queue_priorities = &priority,
|
||||
},
|
||||
};
|
||||
|
||||
const queue_count: u32 = if (candidate.queues.graphics_family == candidate.queues.present_family)
|
||||
1
|
||||
else
|
||||
2;
|
||||
|
||||
return try vki.createDevice(candidate.pdev, &.{
|
||||
.flags = .{},
|
||||
.queue_create_info_count = queue_count,
|
||||
.p_queue_create_infos = &qci,
|
||||
.enabled_layer_count = 0,
|
||||
.pp_enabled_layer_names = undefined,
|
||||
.enabled_extension_count = required_device_extensions.len,
|
||||
.pp_enabled_extension_names = @ptrCast([*]const [*:0]const u8, &required_device_extensions),
|
||||
.p_enabled_features = null,
|
||||
}, null);
|
||||
}
|
||||
|
||||
const DeviceCandidate = struct {
|
||||
pdev: vk.PhysicalDevice,
|
||||
props: vk.PhysicalDeviceProperties,
|
||||
queues: QueueAllocation,
|
||||
};
|
||||
|
||||
const QueueAllocation = struct {
|
||||
graphics_family: u32,
|
||||
present_family: u32,
|
||||
};
|
||||
|
||||
fn pickPhysicalDevice(
|
||||
vki: InstanceDispatch,
|
||||
instance: vk.Instance,
|
||||
allocator: Allocator,
|
||||
surface: vk.SurfaceKHR,
|
||||
) !DeviceCandidate {
|
||||
var device_count: u32 = undefined;
|
||||
_ = try vki.enumeratePhysicalDevices(instance, &device_count, null);
|
||||
|
||||
const pdevs = try allocator.alloc(vk.PhysicalDevice, device_count);
|
||||
defer allocator.free(pdevs);
|
||||
|
||||
_ = try vki.enumeratePhysicalDevices(instance, &device_count, pdevs.ptr);
|
||||
|
||||
for (pdevs) |pdev| {
|
||||
if (try checkSuitable(vki, pdev, allocator, surface)) |candidate| {
|
||||
return candidate;
|
||||
}
|
||||
}
|
||||
|
||||
return error.NoSuitableDevice;
|
||||
}
|
||||
|
||||
fn checkSuitable(
|
||||
vki: InstanceDispatch,
|
||||
pdev: vk.PhysicalDevice,
|
||||
allocator: Allocator,
|
||||
surface: vk.SurfaceKHR,
|
||||
) !?DeviceCandidate {
|
||||
const props = vki.getPhysicalDeviceProperties(pdev);
|
||||
|
||||
if (!try checkExtensionSupport(vki, pdev, allocator)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!try checkSurfaceSupport(vki, pdev, surface)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (try allocateQueues(vki, pdev, allocator, surface)) |allocation| {
|
||||
return DeviceCandidate{
|
||||
.pdev = pdev,
|
||||
.props = props,
|
||||
.queues = allocation,
|
||||
};
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
fn allocateQueues(vki: InstanceDispatch, pdev: vk.PhysicalDevice, allocator: Allocator, surface: vk.SurfaceKHR) !?QueueAllocation {
|
||||
var family_count: u32 = undefined;
|
||||
vki.getPhysicalDeviceQueueFamilyProperties(pdev, &family_count, null);
|
||||
|
||||
const families = try allocator.alloc(vk.QueueFamilyProperties, family_count);
|
||||
defer allocator.free(families);
|
||||
vki.getPhysicalDeviceQueueFamilyProperties(pdev, &family_count, families.ptr);
|
||||
|
||||
var graphics_family: ?u32 = null;
|
||||
var present_family: ?u32 = null;
|
||||
|
||||
for (families) |properties, i| {
|
||||
const family = @intCast(u32, i);
|
||||
|
||||
if (graphics_family == null and properties.queue_flags.graphics_bit) {
|
||||
graphics_family = family;
|
||||
}
|
||||
|
||||
if (present_family == null and (try vki.getPhysicalDeviceSurfaceSupportKHR(pdev, family, surface)) == vk.TRUE) {
|
||||
present_family = family;
|
||||
}
|
||||
}
|
||||
|
||||
if (graphics_family != null and present_family != null) {
|
||||
return QueueAllocation{
|
||||
.graphics_family = graphics_family.?,
|
||||
.present_family = present_family.?,
|
||||
};
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
fn checkSurfaceSupport(vki: InstanceDispatch, pdev: vk.PhysicalDevice, surface: vk.SurfaceKHR) !bool {
|
||||
var format_count: u32 = undefined;
|
||||
_ = try vki.getPhysicalDeviceSurfaceFormatsKHR(pdev, surface, &format_count, null);
|
||||
|
||||
var present_mode_count: u32 = undefined;
|
||||
_ = try vki.getPhysicalDeviceSurfacePresentModesKHR(pdev, surface, &present_mode_count, null);
|
||||
|
||||
return format_count > 0 and present_mode_count > 0;
|
||||
}
|
||||
|
||||
fn checkExtensionSupport(
|
||||
vki: InstanceDispatch,
|
||||
pdev: vk.PhysicalDevice,
|
||||
allocator: Allocator,
|
||||
) !bool {
|
||||
var count: u32 = undefined;
|
||||
_ = try vki.enumerateDeviceExtensionProperties(pdev, null, &count, null);
|
||||
|
||||
const propsv = try allocator.alloc(vk.ExtensionProperties, count);
|
||||
defer allocator.free(propsv);
|
||||
|
||||
_ = try vki.enumerateDeviceExtensionProperties(pdev, null, &count, propsv.ptr);
|
||||
|
||||
for (required_device_extensions) |ext| {
|
||||
for (propsv) |props| {
|
||||
const len = std.mem.indexOfScalar(u8, &props.extension_name, 0).?;
|
||||
const prop_ext_name = props.extension_name[0..len];
|
||||
if (std.mem.eql(u8, std.mem.span(ext), prop_ext_name)) {
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -0,0 +1,327 @@
|
|||
const std = @import("std");
|
||||
const vk = @import("vulkan");
|
||||
const GraphicsContext = @import("graphics_context.zig").GraphicsContext;
|
||||
|
||||
// from https://github.com/Snektron/vulkan-zig/blob/master/examples/swapchain.zig
|
||||
|
||||
// todo?
|
||||
const Allocator = std.mem.Allocator;
|
||||
|
||||
pub const Swapchain = struct {
|
||||
pub const PresentState = enum { optimal, suboptimal };
|
||||
|
||||
gc: *const GraphicsContext,
|
||||
allocator: Allocator,
|
||||
|
||||
surface_format: vk.SurfaceFormatKHR,
|
||||
present_mode: vk.PresentModeKHR,
|
||||
extent: vk.Extent2D,
|
||||
handle: vk.SwapchainKHR,
|
||||
|
||||
swap_images: []SwapImage,
|
||||
image_index: u32,
|
||||
next_image_acquired: vk.Semaphore,
|
||||
|
||||
pub fn init(gc: *const GraphicsContext, allocator: Allocator, extent: vk.Extent2D) !Swapchain {
|
||||
return try initRecycle(gc, allocator, extent, .null_handle);
|
||||
}
|
||||
|
||||
pub fn initRecycle(gc: *const GraphicsContext, allocator: Allocator, extent: vk.Extent2D, old_handle: vk.SwapchainKHR) !Swapchain {
|
||||
const caps = try gc.vki.getPhysicalDeviceSurfaceCapabilitiesKHR(gc.pdev, gc.surface);
|
||||
const actual_extent = findActualExtent(caps, extent);
|
||||
if (actual_extent.width == 0 or actual_extent.height == 0) {
|
||||
return error.InvalidSurfaceDimensions;
|
||||
}
|
||||
|
||||
const surface_format = try findSurfaceFormat(gc, allocator);
|
||||
const present_mode = try findPresentMode(gc, allocator);
|
||||
|
||||
var image_count = caps.min_image_count + 1;
|
||||
if (caps.max_image_count > 0) {
|
||||
image_count = std.math.min(image_count, caps.max_image_count);
|
||||
}
|
||||
|
||||
const qfi = [_]u32{ gc.graphics_queue.family, gc.present_queue.family };
|
||||
const sharing_mode: vk.SharingMode = if (gc.graphics_queue.family != gc.present_queue.family)
|
||||
.concurrent
|
||||
else
|
||||
.exclusive;
|
||||
|
||||
const handle = try gc.vkd.createSwapchainKHR(gc.dev, &.{
|
||||
.flags = .{},
|
||||
.surface = gc.surface,
|
||||
.min_image_count = image_count,
|
||||
.image_format = surface_format.format,
|
||||
.image_color_space = surface_format.color_space,
|
||||
.image_extent = actual_extent,
|
||||
.image_array_layers = 1,
|
||||
.image_usage = .{ .color_attachment_bit = true, .transfer_dst_bit = true },
|
||||
.image_sharing_mode = sharing_mode,
|
||||
.queue_family_index_count = qfi.len,
|
||||
.p_queue_family_indices = &qfi,
|
||||
.pre_transform = caps.current_transform,
|
||||
.composite_alpha = .{ .opaque_bit_khr = true },
|
||||
.present_mode = present_mode,
|
||||
.clipped = vk.TRUE,
|
||||
.old_swapchain = old_handle,
|
||||
}, null);
|
||||
errdefer gc.vkd.destroySwapchainKHR(gc.dev, handle, null);
|
||||
|
||||
if (old_handle != .null_handle) {
|
||||
// Apparently, the old swapchain handle still needs to be destroyed after recreating.
|
||||
gc.vkd.destroySwapchainKHR(gc.dev, old_handle, null);
|
||||
}
|
||||
|
||||
const swap_images = try initSwapchainImages(gc, handle, surface_format.format, allocator);
|
||||
errdefer {
|
||||
for (swap_images) |si| si.deinit(gc);
|
||||
allocator.free(swap_images);
|
||||
}
|
||||
|
||||
var next_image_acquired = try gc.vkd.createSemaphore(gc.dev, &.{ .flags = .{} }, null);
|
||||
errdefer gc.vkd.destroySemaphore(gc.dev, next_image_acquired, null);
|
||||
|
||||
const result = try gc.vkd.acquireNextImageKHR(gc.dev, handle, std.math.maxInt(u64), next_image_acquired, .null_handle);
|
||||
if (result.result != .success) {
|
||||
return error.ImageAcquireFailed;
|
||||
}
|
||||
|
||||
std.mem.swap(vk.Semaphore, &swap_images[result.image_index].image_acquired, &next_image_acquired);
|
||||
return Swapchain{
|
||||
.gc = gc,
|
||||
.allocator = allocator,
|
||||
.surface_format = surface_format,
|
||||
.present_mode = present_mode,
|
||||
.extent = actual_extent,
|
||||
.handle = handle,
|
||||
.swap_images = swap_images,
|
||||
.image_index = result.image_index,
|
||||
.next_image_acquired = next_image_acquired,
|
||||
};
|
||||
}
|
||||
|
||||
fn deinitExceptSwapchain(self: Swapchain) void {
|
||||
for (self.swap_images) |si| si.deinit(self.gc);
|
||||
self.allocator.free(self.swap_images);
|
||||
self.gc.vkd.destroySemaphore(self.gc.dev, self.next_image_acquired, null);
|
||||
}
|
||||
|
||||
pub fn waitForAllFences(self: Swapchain) !void {
|
||||
for (self.swap_images) |si| si.waitForFence(self.gc) catch {};
|
||||
}
|
||||
|
||||
pub fn deinit(self: Swapchain) void {
|
||||
self.deinitExceptSwapchain();
|
||||
self.gc.vkd.destroySwapchainKHR(self.gc.dev, self.handle, null);
|
||||
}
|
||||
|
||||
pub fn recreate(self: *Swapchain, new_extent: vk.Extent2D) !void {
|
||||
const gc = self.gc;
|
||||
const allocator = self.allocator;
|
||||
const old_handle = self.handle;
|
||||
self.deinitExceptSwapchain();
|
||||
self.* = try initRecycle(gc, allocator, new_extent, old_handle);
|
||||
}
|
||||
|
||||
pub fn currentImage(self: Swapchain) vk.Image {
|
||||
return self.swap_images[self.image_index].image;
|
||||
}
|
||||
|
||||
pub fn currentSwapImage(self: Swapchain) *const SwapImage {
|
||||
return &self.swap_images[self.image_index];
|
||||
}
|
||||
|
||||
// TODO: switch to whatever pim does?
|
||||
pub fn present(self: *Swapchain, cmdbuf: vk.CommandBuffer) !PresentState {
|
||||
// Simple method:
|
||||
// 1) Acquire next image
|
||||
// 2) Wait for and reset fence of the acquired image
|
||||
// 3) Submit command buffer with fence of acquired image,
|
||||
// dependendent on the semaphore signalled by the first step.
|
||||
// 4) Present current frame, dependent on semaphore signalled by previous step
|
||||
// Problem: This way we can't reference the current image while rendering.
|
||||
// Better method: Shuffle the steps around such that acquire next image is the last step,
|
||||
// leaving the swapchain in a state with the current image.
|
||||
// 1) Wait for and reset fence of current image
|
||||
// 2) Submit command buffer, signalling fence of current image and dependent on
|
||||
// the semaphore signalled by step 4.
|
||||
// 3) Present current frame, dependent on semaphore signalled by the submit
|
||||
// 4) Acquire next image, signalling its semaphore
|
||||
// One problem that arises is that we can't know beforehand which semaphore to signal,
|
||||
// so we keep an extra auxilery semaphore that is swapped around
|
||||
|
||||
// Step 1: Make sure the current frame has finished rendering
|
||||
const current = self.currentSwapImage();
|
||||
try current.waitForFence(self.gc);
|
||||
try self.gc.vkd.resetFences(self.gc.dev, 1, @ptrCast([*]const vk.Fence, ¤t.frame_fence));
|
||||
|
||||
// Step 2: Submit the command buffer
|
||||
const wait_stage = [_]vk.PipelineStageFlags{.{ .top_of_pipe_bit = true }};
|
||||
try self.gc.vkd.queueSubmit(self.gc.graphics_queue.handle, 1, &[_]vk.SubmitInfo{.{
|
||||
.wait_semaphore_count = 1,
|
||||
.p_wait_semaphores = @ptrCast([*]const vk.Semaphore, ¤t.image_acquired),
|
||||
.p_wait_dst_stage_mask = &wait_stage,
|
||||
.command_buffer_count = 1,
|
||||
.p_command_buffers = @ptrCast([*]const vk.CommandBuffer, &cmdbuf),
|
||||
.signal_semaphore_count = 1,
|
||||
.p_signal_semaphores = @ptrCast([*]const vk.Semaphore, ¤t.render_finished),
|
||||
}}, current.frame_fence);
|
||||
|
||||
// Step 3: Present the current frame
|
||||
_ = try self.gc.vkd.queuePresentKHR(self.gc.present_queue.handle, &.{
|
||||
.wait_semaphore_count = 1,
|
||||
.p_wait_semaphores = @ptrCast([*]const vk.Semaphore, ¤t.render_finished),
|
||||
.swapchain_count = 1,
|
||||
.p_swapchains = @ptrCast([*]const vk.SwapchainKHR, &self.handle),
|
||||
.p_image_indices = @ptrCast([*]const u32, &self.image_index),
|
||||
.p_results = null,
|
||||
});
|
||||
|
||||
// Step 4: Acquire next frame
|
||||
const result = try self.gc.vkd.acquireNextImageKHR(
|
||||
self.gc.dev,
|
||||
self.handle,
|
||||
std.math.maxInt(u64),
|
||||
self.next_image_acquired,
|
||||
.null_handle,
|
||||
);
|
||||
|
||||
std.mem.swap(vk.Semaphore, &self.swap_images[result.image_index].image_acquired, &self.next_image_acquired);
|
||||
self.image_index = result.image_index;
|
||||
|
||||
return switch (result.result) {
|
||||
.success => .optimal,
|
||||
.suboptimal_khr => .suboptimal,
|
||||
else => unreachable,
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
const SwapImage = struct {
|
||||
image: vk.Image,
|
||||
view: vk.ImageView,
|
||||
image_acquired: vk.Semaphore,
|
||||
render_finished: vk.Semaphore,
|
||||
frame_fence: vk.Fence,
|
||||
|
||||
pub fn init(gc: *const GraphicsContext, image: vk.Image, format: vk.Format) !SwapImage {
|
||||
const view = try gc.vkd.createImageView(gc.dev, &.{
|
||||
.flags = .{},
|
||||
.image = image,
|
||||
.view_type = .@"2d",
|
||||
.format = format,
|
||||
.components = .{ .r = .identity, .g = .identity, .b = .identity, .a = .identity },
|
||||
.subresource_range = .{
|
||||
.aspect_mask = .{ .color_bit = true },
|
||||
.base_mip_level = 0,
|
||||
.level_count = 1,
|
||||
.base_array_layer = 0,
|
||||
.layer_count = 1,
|
||||
},
|
||||
}, null);
|
||||
errdefer gc.vkd.destroyImageView(gc.dev, view, null);
|
||||
|
||||
const image_acquired = try gc.vkd.createSemaphore(gc.dev, &.{ .flags = .{} }, null);
|
||||
errdefer gc.vkd.destroySemaphore(gc.dev, image_acquired, null);
|
||||
|
||||
const render_finished = try gc.vkd.createSemaphore(gc.dev, &.{ .flags = .{} }, null);
|
||||
errdefer gc.vkd.destroySemaphore(gc.dev, render_finished, null);
|
||||
|
||||
const frame_fence = try gc.vkd.createFence(gc.dev, &.{ .flags = .{ .signaled_bit = true } }, null);
|
||||
errdefer gc.vkd.destroyFence(gc.dev, frame_fence, null);
|
||||
|
||||
return SwapImage{
|
||||
.image = image,
|
||||
.view = view,
|
||||
.image_acquired = image_acquired,
|
||||
.render_finished = render_finished,
|
||||
.frame_fence = frame_fence,
|
||||
};
|
||||
}
|
||||
|
||||
fn deinit(self: SwapImage, gc: *const GraphicsContext) void {
|
||||
self.waitForFence(gc) catch return;
|
||||
gc.vkd.destroyImageView(gc.dev, self.view, null);
|
||||
gc.vkd.destroySemaphore(gc.dev, self.image_acquired, null);
|
||||
gc.vkd.destroySemaphore(gc.dev, self.render_finished, null);
|
||||
gc.vkd.destroyFence(gc.dev, self.frame_fence, null);
|
||||
}
|
||||
|
||||
fn waitForFence(self: SwapImage, gc: *const GraphicsContext) !void {
|
||||
_ = try gc.vkd.waitForFences(gc.dev, 1, @ptrCast([*]const vk.Fence, &self.frame_fence), vk.TRUE, std.math.maxInt(u64));
|
||||
}
|
||||
};
|
||||
|
||||
fn initSwapchainImages(gc: *const GraphicsContext, swapchain: vk.SwapchainKHR, format: vk.Format, allocator: Allocator) ![]SwapImage {
|
||||
var count: u32 = undefined;
|
||||
_ = try gc.vkd.getSwapchainImagesKHR(gc.dev, swapchain, &count, null);
|
||||
const images = try allocator.alloc(vk.Image, count);
|
||||
defer allocator.free(images);
|
||||
_ = try gc.vkd.getSwapchainImagesKHR(gc.dev, swapchain, &count, images.ptr);
|
||||
|
||||
const swap_images = try allocator.alloc(SwapImage, count);
|
||||
errdefer allocator.free(swap_images);
|
||||
|
||||
var i: usize = 0;
|
||||
errdefer for (swap_images[0..i]) |si| si.deinit(gc);
|
||||
|
||||
for (images) |image| {
|
||||
swap_images[i] = try SwapImage.init(gc, image, format);
|
||||
i += 1;
|
||||
}
|
||||
|
||||
return swap_images;
|
||||
}
|
||||
|
||||
fn findSurfaceFormat(gc: *const GraphicsContext, allocator: Allocator) !vk.SurfaceFormatKHR {
|
||||
const preferred = vk.SurfaceFormatKHR{
|
||||
.format = .b8g8r8a8_srgb,
|
||||
.color_space = .srgb_nonlinear_khr,
|
||||
};
|
||||
|
||||
var count: u32 = undefined;
|
||||
_ = try gc.vki.getPhysicalDeviceSurfaceFormatsKHR(gc.pdev, gc.surface, &count, null);
|
||||
const surface_formats = try allocator.alloc(vk.SurfaceFormatKHR, count);
|
||||
defer allocator.free(surface_formats);
|
||||
_ = try gc.vki.getPhysicalDeviceSurfaceFormatsKHR(gc.pdev, gc.surface, &count, surface_formats.ptr);
|
||||
|
||||
for (surface_formats) |sfmt| {
|
||||
if (std.meta.eql(sfmt, preferred)) {
|
||||
return preferred;
|
||||
}
|
||||
}
|
||||
|
||||
return surface_formats[0]; // There must always be at least one supported surface format.
|
||||
}
|
||||
|
||||
fn findPresentMode(gc: *const GraphicsContext, allocator: Allocator) !vk.PresentModeKHR {
|
||||
var count: u32 = undefined;
|
||||
_ = try gc.vki.getPhysicalDeviceSurfacePresentModesKHR(gc.pdev, gc.surface, &count, null);
|
||||
const present_modes = try allocator.alloc(vk.PresentModeKHR, count);
|
||||
defer allocator.free(present_modes);
|
||||
_ = try gc.vki.getPhysicalDeviceSurfacePresentModesKHR(gc.pdev, gc.surface, &count, present_modes.ptr);
|
||||
|
||||
const preferred = [_]vk.PresentModeKHR{
|
||||
.mailbox_khr,
|
||||
.immediate_khr,
|
||||
};
|
||||
|
||||
for (preferred) |mode| {
|
||||
if (std.mem.indexOfScalar(vk.PresentModeKHR, present_modes, mode) != null) {
|
||||
return mode;
|
||||
}
|
||||
}
|
||||
|
||||
return .fifo_khr;
|
||||
}
|
||||
|
||||
fn findActualExtent(caps: vk.SurfaceCapabilitiesKHR, extent: vk.Extent2D) vk.Extent2D {
|
||||
if (caps.current_extent.width != 0xFFFF_FFFF) {
|
||||
return caps.current_extent;
|
||||
} else {
|
||||
return .{
|
||||
.width = std.math.clamp(extent.width, caps.min_image_extent.width, caps.max_image_extent.width),
|
||||
.height = std.math.clamp(extent.height, caps.min_image_extent.height, caps.max_image_extent.height),
|
||||
};
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
// from https://web.engr.oregonstate.edu/~mjb/vulkan/Handouts/ShadersAndSpirv.1pp.pdf
|
||||
|
||||
#version 400
|
||||
#extension GL_ARB_separate_shader_objects : enable
|
||||
#extension GL_ARB_shading_language_420pack : enable
|
||||
|
||||
layout( std140, set = 0, binding = 0 ) uniform matBuf
|
||||
{
|
||||
mat4 uModelMatrix;
|
||||
mat4 uViewMatrix;
|
||||
mat4 uProjectionMatrix;
|
||||
mat3 uNormalMatrix;
|
||||
} Matrices;
|
||||
|
||||
// non-opaque must be in a uniform block:
|
||||
layout( std140, set = 1, binding = 0 ) uniform lightBuf
|
||||
{
|
||||
vec4 uLightPos;
|
||||
} Light;
|
||||
|
||||
layout( location = 0 ) in vec3 aVertex;
|
||||
layout( location = 1 ) in vec3 aNormal;
|
||||
layout( location = 2 ) in vec3 aColor;
|
||||
layout( location = 3 ) in vec2 aTexCoord;
|
||||
layout ( location = 0 ) out vec3 vNormal;
|
||||
layout ( location = 1 ) out vec3 vColor;
|
||||
layout ( location = 2 ) out vec2 vTexCoord;
|
||||
|
||||
void main()
|
||||
{
|
||||
mat4 PVM = Matrices.uProjectionMatrix * Matrices.uViewMatrix * Matrices.uModelMatrix;
|
||||
//gl_Position = PVM * vec4( aVertex, 1. );
|
||||
vNormal = Matrices.uNormalMatrix * aNormal;
|
||||
vColor = aColor;
|
||||
vTexCoord = aTexCoord;
|
||||
}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
#version 450
|
||||
|
||||
layout(location = 0) in vec3 v_color;
|
||||
|
||||
layout(location = 0) out vec4 f_color;
|
||||
|
||||
void main() {
|
||||
f_color = vec4(v_color, 1.0);
|
||||
}
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
#version 450
|
||||
|
||||
layout(location = 0) in vec2 a_pos;
|
||||
layout(location = 1) in vec3 a_color;
|
||||
|
||||
layout(location = 0) out vec3 v_color;
|
||||
|
||||
void main() {
|
||||
gl_Position = vec4(a_pos, 0.0, 1.0);
|
||||
v_color = a_color;
|
||||
}
|
||||
Loading…
Reference in New Issue