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core: Remove main_window in favor of users creating their own windows. Added event window_open which is called when the platform has finished initializing the window

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foxnne 2024-12-01 18:10:02 -06:00 • committed by Emi Gutekanst
parent b33f85576e
commit ad5700cf48
4 changed files with 72 additions and 50 deletions
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43
examples/core-custom-entrypoint/App.zig
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@ -7,6 +7,7 @@ pub const mach_module = .app;
pub const mach_systems = .{ .main, .init, .deinit, .tick };
window: mach.ObjectID,
title_timer: mach.time.Timer,
pipeline: *gpu.RenderPipeline,
@ -28,10 +29,25 @@ pub fn init(
core.on_tick = app_mod.id.tick;
core.on_exit = app_mod.id.deinit;
const main_window = core.windows.getValue(core.main_window);
const window = try core.windows.new(.{ .title = "core-custom-entrypoint" });
// Store our render pipeline in our module's state, so we can access it later on.
app.* = .{
.window = window,
.title_timer = try mach.time.Timer.start(),
.pipeline = undefined,
};
// TODO(object): window-title
// try updateWindowTitle(core);
}
fn setupPipeline(core: *mach.Core, app: *App, window_id: mach.ObjectID) !void {
_ = window_id; // autofix
const window = core.windows.getValue(app.window);
// Create our shader module
const shader_module = main_window.device.createShaderModuleWGSL("shader.wgsl", @embedFile("shader.wgsl"));
const shader_module = window.device.createShaderModuleWGSL("shader.wgsl", @embedFile("shader.wgsl"));
defer shader_module.release();
// Blend state describes how rendered colors get blended
@ -39,7 +55,7 @@ pub fn init(
// Color target describes e.g. the pixel format of the window we are rendering to.
const color_target = gpu.ColorTargetState{
.format = main_window.framebuffer_format,
.format = window.framebuffer_format,
.blend = &blend,
};
@ -60,36 +76,31 @@ pub fn init(
.entry_point = "vertex_main",
},
};
const pipeline = main_window.device.createRenderPipeline(&pipeline_descriptor);
// Store our render pipeline in our module's state, so we can access it later on.
app.* = .{
.title_timer = try mach.time.Timer.start(),
.pipeline = pipeline,
};
// TODO(object): window-title
// try updateWindowTitle(core);
app.pipeline = window.device.createRenderPipeline(&pipeline_descriptor);
}
pub fn tick(core: *mach.Core, app: *App) !void {
while (core.nextEvent()) |event| {
switch (event) {
.window_open => |ev| {
try setupPipeline(core, app, ev.window_id);
},
.close => core.exit(),
else => {},
}
}
const main_window = core.windows.getValue(core.main_window);
const window = core.windows.getValue(app.window);
// Grab the back buffer of the swapchain
// TODO(Core)
const back_buffer_view = main_window.swap_chain.getCurrentTextureView().?;
const back_buffer_view = window.swap_chain.getCurrentTextureView().?;
defer back_buffer_view.release();
// Create a command encoder
const label = @tagName(mach_module) ++ ".tick";
const encoder = main_window.device.createCommandEncoder(&.{ .label = label });
const encoder = window.device.createCommandEncoder(&.{ .label = label });
defer encoder.release();
// Begin render pass
@ -116,7 +127,7 @@ pub fn tick(core: *mach.Core, app: *App) !void {
// Submit our commands to the queue
var command = encoder.finish(&.{ .label = label });
defer command.release();
main_window.queue.submit(&[_]*gpu.CommandBuffer{command});
window.queue.submit(&[_]*gpu.CommandBuffer{command});
// update the window title every second
if (app.title_timer.read() >= 1.0) {