Add Windows build script

build.ps1

@@ -0,0 +1,52 @@
+$ErrorActionPreference = "Stop"
+
+$PROJECT = "sindri"
+$COMMIT = git rev-parse --short HEAD
+$VERSION = "dev-$(Get-Date -Format 'yyyy-MM-dd')-$COMMIT"
+
+$OPTION = $args[0]
+if ($args) { $args = $args[1..($args.Length - 1)] } else { $args = @() }
+
+# ------------------------------------------
+# Game compile
+
+New-Item -ItemType Directory -Force -Path build | Out-Null
+
+# Game.dll
+odin build game/ -show-timings `
+	-collection:sindri=src `
+	-build-mode:dynamic `
+	-out:build/game_tmp -microarch:native "-define:VERSION=$VERSION-debug" -debug @args
+
+# Need to use a temp file on Windows because it first writes an empty file,
+# which the engine will load before it is actually fully written.
+if (-not (Test-Path "build/game_tmp.dll")) {
+	Write-Error "error: build produced no game lib.dll"
+	exit 1
+}
+Move-Item -Force "build/game_tmp.dll" "build/game.dll"
+
+# ------------------------------------------
+# Engine compile
+
+# If the executable is already running, then don't try to build and start it.
+$proc = Get-Process -Name $PROJECT -ErrorAction SilentlyContinue
+if ($proc) {
+	Write-Output "Hot reloading..."
+	exit 0
+}
+
+if ($OPTION -eq "debug") {
+	odin build src/ -show-timings `
+		-collection:sindri=src `
+		-collection:gram=vendor/gram/src `
+		-collection:wgpu=vendor `
+		-out:build/$PROJECT -microarch:native -use-separate-modules "-define:VERSION=$VERSION-debug" -debug @args
+	exit 0
+}
+
+odin build src/ -show-timings `
+	-collection:sindri=src `
+	-collection:gram=vendor/gram/src `
+	-collection:wgpu=vendor `
+	-out:build/$PROJECT -microarch:native -o:speed "-define:VERSION=$VERSION" @args

docs/odin.md

@@ -0,0 +1,22 @@
+# Odin
+
+This document contains specifics about the workings of the Odin programming
+language, dynamic linking and state management design patterns. These are
+tested and validated findings, for continued reference by me.
+
+## Dynamic Library Memory
+
+When a program loads in a dynamic library, what happens with package globals?
+
+Findings (macOS):
+- The package globals are shared between the host and the lib
+- After hot reloading the lib, the memory of the packge is not refreshed,
+  it keeps pointing to the package global of the host
+
+The clanker states this is due to "flat-namespace symbol interposition".
+
+Linux "ELF has symbol preemption: when resolving references, ld.so searches
+globals scope in order — executable first, then loaded shared objects".
+
+Windows PE has no interposition at all, every module (exe and each DLL) has its
+own symbol table.

game/game.odin

@@ -5,11 +5,12 @@ import "core:time"
 import "core:fmt"
 
 import "sindri:core"
+import "sindri:test"
 
 // -----------------------------------------
 
 Game_Memory :: struct {
-	should_close: bool
+	should_close: bool,
 }
 
 g: ^Game_Memory
@@ -54,6 +55,8 @@ settings :: proc() -> core.Settings {
 @(export)
 init_once :: proc() {
 	fmt.println("init once")
+
+	test.test_proc = proc() {}
 }
 
 @(export)
@@ -61,6 +64,9 @@ init :: proc() {
 	fmt.println("hello from .dll!")
 
 	g = new(Game_Memory)
+	memory_set(g)
+
+	test.test_proc = proc() { asd := 2 }
 }
 
 @(export)
@@ -70,6 +76,10 @@ update :: proc(dt: f32) {
 	if input.key_state(.Key_Escape) == .Press {
 		g.should_close = true
 	}
+
+	fmt.println("GAME:", test.test)
+	fmt.printf("pointer: %p | %p\n", &test.test, &test.test_proc)
+	test.test += 1
 }
 
 @(export)
@@ -83,19 +93,17 @@ start := time.tick_now()
 should_close :: proc() -> bool {
 	elapsed := time.tick_since(start)
 	seconds := time.duration_seconds(elapsed)
-	if seconds > 4 do return true
+	// if seconds > 4 do return true
 
 	return g.should_close
 }
 
 @(export)
 force_reload :: proc() -> bool {
-	// TODO: read keypress
-	return false
+	return input.key_state(.Key_F5) == .Press
 }
 
 @(export)
 force_restart :: proc() -> bool {
-	// TODO: read keypress
-	return false
+	return input.key_state(.Key_F6) == .Press
 }

src/event/event.odin

@@ -5,9 +5,11 @@ import "core:fmt"
 import "sindri:input"
 
 // -----------------------------------------
+// Types
 
 // event category, bitfield (?)
 
+// Event_Data :: union {
 Event :: union {
 	Window_Close_Event,
 	Window_Resize_Event,
@@ -22,6 +24,11 @@ Event :: union {
 	Mouse_Scroll_Event,
 }
 
+// Event :: struct {
+// 	data:    Event_Data,
+// 	handled: bool,
+// }
+
 Window_Close_Event :: struct {
 	handled: bool,
 }
@@ -85,6 +92,13 @@ Mouse_Scroll_Event :: struct {
 }
 
 // -----------------------------------------
+// Variables
+
+// I want to have a list of Listeners per Event type, but this is state
+// listeners: map[typeid][dynamic]Listener
+
+// -----------------------------------------
+// Public functions
 
 // Dispatcher(Event) -> forwards to the right function
 on_event :: proc(event: Event) {
@@ -116,3 +130,9 @@ on_event :: proc(event: Event) {
 			fmt.println("Joy dis:", e.id)
 	}
 }
+
+/*
+   Notes:
+
+   Have the events queued up into a frame buffer that gets drained at a specific time.
+ */

src/input/input.odin

@@ -11,5 +11,9 @@ key_state: proc(key: Key) -> Action
 //   implementation in platform package, to prevent cyclic dependency
 mouse_button_state: proc(button: Mouse_Button) -> Action
 
+// Returns the position of the mouse cursor
+//   implementation in platform package, to prevent cyclic dependency
+mouse_position: proc() -> (x_pos: f32, y_pos: f32)
+
 // -----------------------------------------
 // Private functions

src/main.odin

@@ -2,6 +2,7 @@ package sindri
 
 import "core:fmt"
 import "core:time"
+import "sindri:test"
 
 import "sindri:hot_reload"
 import "sindri:platform"
@@ -41,6 +42,9 @@ main :: proc() {
 		platform.os_poll_events()
 		api.update(dt)
 
+		fmt.println("MAIN:", test.test)
+		fmt.printf("pointer: %p | %p\n", &test.test, &test.test_proc)
+
 		platform.frame(dt)
 
 		dt = f32(time.duration_seconds(time.tick_since(start)))

src/platform/glfw.odin

@@ -52,11 +52,7 @@ os_init :: proc(settings: core.Settings) {
 	// Register input functions
 	input.key_state = key_state
 	input.mouse_button_state = mouse_button_state
-
-	// TODO: Figure out proper vsync, found 3 spots so far
-	// - glfw.SwapInterval(0) this is only for OpenGL it seems?
-	// - glfw.SetWindowMonitor(refresh)
-	// - wgpu presentMode = .Fifo
+	input.mouse_position = mouse_position
 }
 
 os_destroy :: proc() {
@@ -157,6 +153,12 @@ mouse_button_state :: proc(button: input.Mouse_Button) -> input.Action {
 	return input_action(glfw.GetMouseButton(state.os.window, i32(button)))
 }
 
+@(private = "file")
+mouse_position :: proc() -> (x_pos: f32, y_pos: f32) {
+	x_pos_f64, y_pos_64 := glfw.GetCursorPos(state.os.window)
+	return f32(x_pos_f64), f32(y_pos_64)
+}
+
 @(private = "file")
 input_action :: proc(action: i32) -> input.Action {
 	if action == glfw.RELEASE do return input.Action.Release

src/platform/wgpu.odin

@@ -26,7 +26,7 @@ state: struct {
 	pipeline_layout: wgpu.PipelineLayout,
 	pipeline:        wgpu.RenderPipeline,
 	// ----------------------------------------
-	present_modes:   []wgpu.PresentMode,
+	capabilities:    wgpu.SurfaceCapabilities,
 	vsync:           bool,
 }
 
@@ -69,6 +69,7 @@ instance_destroy :: proc() {
 	wgpu.ShaderModuleRelease(state.module)
 	wgpu.QueueRelease(state.queue)
 	wgpu.DeviceRelease(state.device)
+	wgpu.SurfaceCapabilitiesFreeMembers(state.capabilities)
 	wgpu.AdapterRelease(state.adapter)
 	wgpu.SurfaceRelease(state.surface)
 	wgpu.InstanceRelease(state.instance)
@@ -260,25 +261,29 @@ get_present_modes :: proc() {
 	if status != .Success {
 		fmt.panicf("[wgpu] surface capabilities failure: [%v]", status)
 	}
-	state.present_modes = capabilities.presentModes[:capabilities.presentModeCount]
-	fmt.println("[wgpu] supported present modes", state.present_modes)
+	state.capabilities = capabilities
+
+	present_modes := capabilities.presentModes[:capabilities.presentModeCount]
+	fmt.println("[wgpu] supported present modes", present_modes)
 }
 
 @(private = "file")
 pick_present_mode :: proc(vsync: bool) -> wgpu.PresentMode {
-	if len(state.present_modes) == 0 do return .Fifo
+	present_modes := state.capabilities.presentModes[:state.capabilities.presentModeCount]
+
+	if len(present_modes) == 0 do return .Fifo
 
 	// Mimmick wgpu auto Vsync behavior
 	// https://docs.rs/wgpu/latest/wgpu/enum.PresentMode.html
 	if vsync {
-		if slice.contains(state.present_modes, wgpu.PresentMode.FifoRelaxed) {
+		if slice.contains(present_modes, wgpu.PresentMode.FifoRelaxed) {
 			return .FifoRelaxed // Adaptive Vsync
 		}
 	} else {
-		if slice.contains(state.present_modes, wgpu.PresentMode.Immediate) {
+		if slice.contains(present_modes, wgpu.PresentMode.Immediate) {
 			return .Immediate // Vsync Off
 		}
-		if slice.contains(state.present_modes, wgpu.PresentMode.Mailbox) {
+		if slice.contains(present_modes, wgpu.PresentMode.Mailbox) {
 			return .Mailbox // Fast Vsync
 		}
 	}

src/test/test.odin

@@ -0,0 +1,5 @@
+package test
+
+test: int = 0
+
+test_proc: proc()