311 lines
9.5 KiB
Odin
311 lines
9.5 KiB
Odin
package sectr
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import "base:runtime"
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import c "core:c/libc"
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import "core:dynlib"
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import "core:mem"
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import "core:mem/virtual"
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import "core:os"
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import "core:slice"
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import "core:strings"
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import "core:time"
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import rl "vendor:raylib"
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Path_Assets :: "../assets/"
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Path_Input_Replay :: "scratch.sectr_replay"
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ModuleAPI :: struct {
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lib : dynlib.Library,
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write_time : FileTime,
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lib_version : i32,
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startup : type_of( startup ),
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shutdown : type_of( sectr_shutdown ),
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reload : type_of( reload ),
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tick : type_of( tick ),
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clean_frame : type_of( clean_frame ),
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}
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@export
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startup :: proc( persistent_mem, frame_mem, transient_mem, files_buffer_mem : ^VArena, host_logger : ^ Logger )
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{
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startup_tick := time.tick_now()
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logger_init( & Memory_App.logger, "Sectr", host_logger.file_path, host_logger.file )
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context.logger = to_odin_logger( & Memory_App.logger )
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// Setup memory for the first time
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{
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using Memory_App;
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persistent = persistent_mem
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frame = frame_mem
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transient = transient_mem
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files_buffer = files_buffer_mem
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context.allocator = persistent_allocator()
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context.temp_allocator = transient_allocator()
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// TODO(Ed) : Put on the transient allocator a slab allocator (transient slab)
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}
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state := new( State, persistent_allocator() )
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using state
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// Setup Persistent Slab
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{
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alignment := uint(mem.DEFAULT_ALIGNMENT)
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policy_ptr := & default_slab_policy
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push( policy_ptr, SlabSizeClass { 16 * Megabyte, 4 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 32 * Megabyte, 16 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 32 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 64 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 128 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 256 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 512 * Kilobyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 1 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 2 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 4 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 8 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 16 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 64 * Megabyte, 32 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 256 * Megabyte, 64 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 256 * Megabyte, 128 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 512 * Megabyte, 256 * Megabyte, alignment })
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push( policy_ptr, SlabSizeClass { 512 * Megabyte, 512 * Megabyte, alignment })
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alloc_error : AllocatorError
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persistent_slab, alloc_error = slab_init( policy_ptr, allocator = persistent_allocator() )
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verify( alloc_error == .None, "Failed to allocate the general slab allocator" )
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}
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string_cache = str_cache_init()
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context.user_ptr = state
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input = & input_data[1]
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input_prev = & input_data[0]
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// Configuration Load
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{
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using config
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resolution_width = 1000
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resolution_height = 600
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refresh_rate = 0
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cam_min_zoom = 0.25
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cam_max_zoom = 10.0
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cam_zoom_mode = .Smooth
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cam_zoom_smooth_snappiness = 4.0
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cam_zoom_sensitivity_digital = 0.2
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cam_zoom_sensitivity_smooth = 4.0
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engine_refresh_hz = 30
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ui_resize_border_width = 5
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}
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Desired_OS_Scheduler_MS :: 1
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sleep_is_granular = set__scheduler_granularity( Desired_OS_Scheduler_MS )
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// rl.Odin_SetMalloc( RL_MALLOC )
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rl.SetConfigFlags( {
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rl.ConfigFlag.WINDOW_RESIZABLE,
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// rl.ConfigFlag.WINDOW_TOPMOST,
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})
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// Rough setup of window with rl stuff
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window_width : i32 = 1000
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window_height : i32 = 600
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win_title : cstring = "Sectr Prototype"
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rl.InitWindow( window_width, window_height, win_title )
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log( "Raylib initialized and window opened" )
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window := & state.app_window
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window.extent.x = f32(window_width) * 0.5
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window.extent.y = f32(window_height) * 0.5
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// We do not support non-uniform DPI.
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window.dpi_scale = rl.GetWindowScaleDPI().x
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window.ppcm = os_default_ppcm * window.dpi_scale
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// Determining current monitor and setting the target frametime based on it..
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monitor_id = rl.GetCurrentMonitor()
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monitor_refresh_hz = rl.GetMonitorRefreshRate( monitor_id )
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rl.SetTargetFPS( 60 * 24 )
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log( str_fmt_tmp( "Set target FPS to: %v", monitor_refresh_hz ) )
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// Basic Font Setup
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{
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font_provider_startup()
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// path_rec_mono_semicasual_reg := strings.concatenate( { Path_Assets, "RecMonoSemicasual-Regular-1.084.ttf" })
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// font_rec_mono_semicasual_reg = font_load( path_rec_mono_semicasual_reg, 24.0, "RecMonoSemiCasual_Regular" )
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// path_squidgy_slimes := strings.concatenate( { Path_Assets, "Squidgy Slimes.ttf" } )
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// font_squidgy_slimes = font_load( path_squidgy_slimes, 24.0, "Squidgy_Slime" )
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path_firacode := strings.concatenate( { Path_Assets, "FiraCode-Regular.ttf" }, transient_allocator() )
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font_firacode = font_load( path_firacode, 24.0, "FiraCode" )
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default_font = font_firacode
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log( "Default font loaded" )
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}
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// Demo project setup
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{
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using project
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path = str_intern("./")
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name = str_intern( "First Project" )
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workspace.name = str_intern( "First Workspace" )
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{
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using project.workspace
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cam = {
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target = { 0, 0 },
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offset = transmute(Vec2) window.extent,
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rotation = 0,
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zoom = 1.0,
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}
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// cam = {
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// position = { 0, 0, -100 },
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// target = { 0, 0, 0 },
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// up = { 0, 1, 0 },
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// fovy = 90,
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// projection = rl.CameraProjection.ORTHOGRAPHIC,
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// }
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// Setup workspace UI state
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ui_startup( & workspace.ui, cache_allocator = persistent_slab_allocator() )
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}
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}
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startup_ms := duration_ms( time.tick_lap_time( & startup_tick))
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log( str_fmt_tmp("Startup time: %v ms", startup_ms) )
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// Make sure to cleanup transient before continuing...
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// From here on, tarnsinet usage has to be done with care.
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// For most cases, the frame allocator should be more than enough.
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free_all( transient_allocator() )
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}
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// For some reason odin's symbols conflict with native foreign symbols...
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@export
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sectr_shutdown :: proc()
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{
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if Memory_App.persistent == nil {
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return
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}
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state := get_state()
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// Replay
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{
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file_close( Memory_App.replay.active_file )
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}
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font_provider_shutdown()
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log("Module shutdown complete")
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}
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@export
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reload :: proc( persistent_mem, frame_mem, transient_mem, files_buffer_mem : ^VArena, host_logger : ^ Logger )
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{
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using Memory_App;
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persistent = persistent_mem
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frame = frame_mem
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transient = transient_mem
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files_buffer = files_buffer_mem
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context.allocator = persistent_allocator()
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context.temp_allocator = transient_allocator()
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// Procedure Addresses are not preserved on hot-reload. They must be restored for persistent data.
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// The only way to alleviate this is to either do custom handles to allocators
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// Or as done below, correct containers using allocators on reload.
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// Thankfully persistent dynamic allocations are rare, and thus we know exactly which ones they are.
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font_provider_data := & get_state().font_provider_data
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font_provider_data.font_cache.hashes.allocator = persistent_slab_allocator()
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font_provider_data.font_cache.entries.allocator = persistent_slab_allocator()
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ui_reload( & get_state().project.workspace.ui, cache_allocator = persistent_slab_allocator() )
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log("Module reloaded")
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}
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// TODO(Ed) : This lang really not have a fucking swap?
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swap :: proc( a, b : ^ $Type ) -> ( ^ Type, ^ Type ) {
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return b, a
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}
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@export
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tick :: proc( host_delta_time : f64, host_delta_ns : Duration ) -> b32
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{
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client_tick := time.tick_now()
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state := get_state(); using state
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// Setup Frame Slab
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{
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alloc_error : AllocatorError
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frame_slab, alloc_error = slab_init( & default_slab_policy, allocator = frame_allocator() )
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verify( alloc_error == .None, "Failed to allocate frame slab" )
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}
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context.allocator = frame_allocator()
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context.temp_allocator = transient_allocator()
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rl.PollInputEvents()
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result := update( host_delta_time )
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render()
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rl.SwapScreenBuffer()
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config.engine_refresh_hz = uint(monitor_refresh_hz)
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frametime_target_ms = 1.0 / f64(config.engine_refresh_hz) * S_To_MS
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sub_ms_granularity_required := frametime_target_ms <= Frametime_High_Perf_Threshold_MS
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frametime_delta_ns = time.tick_lap_time( & client_tick )
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frametime_delta_ms = duration_ms( frametime_delta_ns )
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frametime_delta_seconds = duration_seconds( frametime_delta_ns )
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frametime_elapsed_ms = frametime_delta_ms + host_delta_time
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if frametime_elapsed_ms < frametime_target_ms
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{
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sleep_ms := frametime_target_ms - frametime_elapsed_ms
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pre_sleep_tick := time.tick_now()
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if sleep_ms > 0 {
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thread_sleep( cast(Duration) sleep_ms * MS_To_NS )
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// thread__highres_wait( sleep_ms )
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}
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sleep_delta_ns := time.tick_lap_time( & pre_sleep_tick)
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sleep_delta_ms := duration_ms( sleep_delta_ns )
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if sleep_delta_ms < sleep_ms {
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// log( str_fmt_tmp("frametime sleep was off by: %v ms", sleep_delta_ms - sleep_ms ))
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}
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frametime_elapsed_ms += sleep_delta_ms
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for ; frametime_elapsed_ms < frametime_target_ms; {
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sleep_delta_ns = time.tick_lap_time( & pre_sleep_tick)
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sleep_delta_ms = duration_ms( sleep_delta_ns )
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frametime_elapsed_ms += sleep_delta_ms
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}
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}
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if frametime_elapsed_ms > 60.0 {
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log( str_fmt_tmp("Big tick! %v ms", frametime_elapsed_ms), LogLevel.Warning )
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}
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return result
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}
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@export
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clean_frame :: proc() {
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free_all( frame_allocator() )
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}
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