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mach: implement App struct in terms of unified entry point

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iddev5 2022-04-28 00:05:44 +05:30 • committed by Stephen Gutekanst
parent 3e87b383d2
commit 2aedc4ca01
6 changed files with 313 additions and 333 deletions
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51
examples/triangle/main.zig
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@ -2,21 +2,19 @@ const std = @import("std");
const mach = @import("mach");
const gpu = @import("gpu");
const App = mach.App(*FrameParams, .{});
pub const options: mach.Engine.Options = .{};
pub fn init() !void {
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
var allocator = gpa.allocator();
pipeline: gpu.RenderPipeline,
queue: gpu.Queue,
const ctx = try allocator.create(FrameParams);
var app = try App.init(allocator, ctx, .{});
const vs_module = app.device.createShaderModule(&.{
const Self = @This();
pub fn init(self: *Self, engine: *mach.Engine) !void {
const vs_module = engine.gpu_driver.device.createShaderModule(&.{
.label = "my vertex shader",
.code = .{ .wgsl = @embedFile("vert.wgsl") },
});
const fs_module = app.device.createShaderModule(&.{
const fs_module = engine.gpu_driver.device.createShaderModule(&.{
.label = "my fragment shader",
.code = .{ .wgsl = @embedFile("frag.wgsl") },
});
@ -35,7 +33,7 @@ pub fn init() !void {
},
};
const color_target = gpu.ColorTargetState{
.format = app.swap_chain_format,
.format = engine.gpu_driver.swap_chain_format,
.blend = &blend,
.write_mask = gpu.ColorWriteMask.all,
};
@ -67,30 +65,17 @@ pub fn init() !void {
},
};
ctx.* = FrameParams{
.pipeline = app.device.createRenderPipeline(&pipeline_descriptor),
.queue = app.device.getQueue(),
};
self.pipeline = engine.gpu_driver.device.createRenderPipeline(&pipeline_descriptor);
self.queue = engine.gpu_driver.device.getQueue();
vs_module.release();
fs_module.release();
try app.run(.{ .frame = frame });
}
pub fn update() !bool {
return false;
}
pub fn deinit(_: *Self, _: *mach.Engine) void {}
pub fn deinit() void {}
const FrameParams = struct {
pipeline: gpu.RenderPipeline,
queue: gpu.Queue,
};
fn frame(app: *App, params: *FrameParams) !void {
const back_buffer_view = app.swap_chain.?.getCurrentTextureView();
pub fn update(self: *Self, engine: *mach.Engine) !bool {
const back_buffer_view = engine.gpu_driver.swap_chain.?.getCurrentTextureView();
const color_attachment = gpu.RenderPassColorAttachment{
.view = back_buffer_view,
.resolve_target = null,
@ -99,13 +84,13 @@ fn frame(app: *App, params: *FrameParams) !void {
.store_op = .store,
};
const encoder = app.device.createCommandEncoder(null);
const encoder = engine.gpu_driver.device.createCommandEncoder(null);
const render_pass_info = gpu.RenderPassEncoder.Descriptor{
.color_attachments = &.{color_attachment},
.depth_stencil_attachment = null,
};
const pass = encoder.beginRenderPass(&render_pass_info);
pass.setPipeline(params.pipeline);
pass.setPipeline(self.pipeline);
pass.draw(3, 1, 0, 0);
pass.end();
pass.release();
@ -113,8 +98,10 @@ fn frame(app: *App, params: *FrameParams) !void {
var command = encoder.finish(null);
encoder.release();
params.queue.submit(&.{command});
self.queue.submit(&.{command});
command.release();
app.swap_chain.?.present();
engine.gpu_driver.swap_chain.?.present();
back_buffer_view.release();
return true;
}