212 lines
5.3 KiB
Odin
212 lines
5.3 KiB
Odin
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package sectr
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// At least its less than C/C++ ...
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import "base:builtin"
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import "base:runtime"
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import "core:hash"
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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:path/filepath"
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import c "core:c/libc"
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Byte :: 1
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Kilobyte :: 1024 * Byte
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Megabyte :: 1024 * Kilobyte
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Gigabyte :: 1024 * Megabyte
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Terabyte :: 1024 * Gigabyte
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Petabyte :: 1024 * Terabyte
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Exabyte :: 1024 * Petabyte
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kilobytes :: proc( kb : $ integer_type ) -> integer_type {
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return kb * Kilobyte
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}
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megabytes :: proc( mb : $ integer_type ) -> integer_type {
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return mb * Megabyte
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}
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gigabyte :: proc( gb : $ integer_type ) -> integer_type {
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return gb * Gigabyte
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}
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terabyte :: proc( tb : $ integer_type ) -> integer_type {
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return tb * Terabyte
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}
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copy :: builtin.copy
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crc32 :: hash.crc32
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Allocator :: mem.Allocator
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AllocatorError :: mem.Allocator_Error
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alloc :: mem.alloc
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alloc_bytes :: mem.alloc_bytes
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Arena :: mem.Arena
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arena_allocator :: mem.arena_allocator
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arena_init :: mem.arena_init
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free :: mem.free
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ptr_offset :: mem.ptr_offset
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slice_ptr :: mem.slice_ptr
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Tracking_Allocator :: mem.Tracking_Allocator
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tracking_allocator :: mem.tracking_allocator
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tracking_allocator_init :: mem.tracking_allocator_init
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file_name_from_path :: filepath.short_stem
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OS_Type :: type_of(ODIN_OS)
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get_bounds :: proc {
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box_get_bounds,
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view_get_bounds,
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}
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//region Stack - Basic fixed-size stack container
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Stack :: struct ( $ Type : typeid, $ Size : i32 ) {
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idx : i32,
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items : [ Size ] Type,
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}
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stack_push :: proc( stack : ^ $ StackType / Stack( $ Type, $ Size ), value : Type ) {
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using stack
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verify( idx < len( items ), "Attempted to push on a full stack" )
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items[ idx ] = value
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idx += 1
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}
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stack_pop :: proc( stack : ^ $ StackType / Stack( $ Type, $ Size ) ) {
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using stack
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verify( idx > 0, "Attempted to pop an empty stack" )
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idx -= 1
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if idx == 0 {
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items[idx] = {}
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}
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}
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stack_peek :: proc( stack : ^ Stack( $ Type, $ Size ) ) -> ^ Type {
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using stack
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return & items[idx]
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}
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//endregion Stack
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//region Doubly Linked List generic procs (verbose)
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dbl_linked_list_push_back :: proc(first: ^(^ $ Type), last: ^(^ Type), new_node: ^ Type)
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{
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if first == nil || first^ == nil {
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// List is empty, set first and last to the new node
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(first ^) = new_node
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(last ^) = new_node
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new_node.next = nil
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new_node.prev = nil
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}
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else
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{
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// List is not empty, add new node to the end
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(last^).next = new_node
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new_node.prev = last^
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(last ^) = new_node
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new_node.next = nil
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}
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}
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//endregion
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// TODO(Ed) : This is extremely jank, Raylib requires a 'heap' allocator with the way it works.
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// We do not have persistent segmented in such a way for this. Eventually we might just want to segment vmem and just shove a heap allocator on a segment of it.
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when false {
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RL_MALLOC :: proc "c" ( size : c.size_t ) -> rawptr
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{
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allocator : Allocator
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when Use_TrackingAllocator {
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allocator = Allocator {
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data = & memory.persistent.tracker,
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procedure = mem.tracking_allocator_proc,
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}
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}
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else {
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allocator = Allocator {
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data = & memory.persistent,
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procedure = mem.arena_allocator_proc,
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}
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}
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result, error_code := allocator.procedure( allocator.data, mem.Allocator_Mode.Alloc_Non_Zeroed, cast(int) size, mem.DEFAULT_ALIGNMENT, nil, 0, auto_cast {} )
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if error_code != AllocatorError.None {
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runtime.debug_trap()
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os.exit( -1 )
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}
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return raw_data(result)
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}
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RL_CALLOC :: proc "c" ( count : c.size_t, size : c.size_t ) -> rawptr
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{
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allocator : Allocator
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when Use_TrackingAllocator {
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allocator = Allocator {
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data = & memory.persistent.tracker,
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procedure = mem.tracking_allocator_proc,
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}
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}
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else {
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allocator = Allocator {
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data = & memory.persistent,
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procedure = mem.arena_allocator_proc,
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}
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}
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result, error_code := allocator.procedure( allocator.data, mem.Allocator_Mode.Alloc, cast(int) size, mem.DEFAULT_ALIGNMENT, nil, 0, auto_cast {} )
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if error_code != AllocatorError.None {
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runtime.debug_trap()
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os.exit( -1 )
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}
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return raw_data(result)
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}
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RL_REALLOC :: proc "c" ( block : rawptr, size : c.size_t ) -> rawptr
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{
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allocator : Allocator
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when Use_TrackingAllocator {
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allocator = Allocator {
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data = & memory.persistent.tracker,
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procedure = mem.tracking_allocator_proc,
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}
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}
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else {
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allocator = Allocator {
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data = & memory.persistent,
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procedure = mem.arena_allocator_proc,
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}
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}
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result, error_code := allocator.procedure( allocator.data, mem.Allocator_Mode.Resize_Non_Zeroed, cast(int) size, mem.DEFAULT_ALIGNMENT, block, 0, auto_cast {} )
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if error_code != AllocatorError.None {
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runtime.debug_trap()
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os.exit( -1 )
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}
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return raw_data(result)
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}
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RL_FREE :: proc "c" ( block : rawptr )
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{
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allocator : Allocator
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when Use_TrackingAllocator {
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allocator = Allocator {
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data = & memory.persistent.tracker,
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procedure = mem.tracking_allocator_proc,
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}
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}
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else {
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allocator = Allocator {
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data = & memory.persistent,
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procedure = mem.arena_allocator_proc,
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}
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}
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result, error_code := allocator.procedure( allocator.data, mem.Allocator_Mode.Free, 0, 0, block, 0, auto_cast {} )
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if error_code != AllocatorError.None {
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runtime.debug_trap()
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os.exit( -1 )
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}
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}
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} |