39 lines
1.1 KiB
Odin
39 lines
1.1 KiB
Odin
|
package sokol_helpers
|
||
|
|
|
||
|
|
// Use native odin allocators in sokol allocator interface
|
||
|
|
|
||
|
|
import sapp "../app"
|
||
|
|
import sg "../gfx"
|
||
|
|
import "base:runtime"
|
||
|
|
import "core:c"
|
||
|
|
|
||
|
|
Allocator :: struct {
|
||
|
|
alloc_fn: proc "c" (size: c.size_t, user_data: rawptr) -> rawptr,
|
||
|
|
free_fn: proc "c" (ptr: rawptr, user_data: rawptr),
|
||
|
|
user_data: rawptr,
|
||
|
|
}
|
||
|
|
|
||
|
|
// context_ptr: a pointer to a context which persists during the lifetime of the program.
|
||
|
|
// Note: you can transmute() this into a logger for any specific sokol library.
|
||
|
|
allocator :: proc(context_ptr: ^runtime.Context) -> Allocator {
|
||
|
|
return {
|
||
|
|
alloc_fn = allocator_alloc_proc,
|
||
|
|
free_fn = allocator_free_proc,
|
||
|
|
user_data = cast(rawptr)context_ptr,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
allocator_alloc_proc :: proc "c" (size: c.size_t, user_data: rawptr) -> rawptr {
|
||
|
|
context = (cast(^runtime.Context)user_data)^
|
||
|
|
bytes, err := runtime.mem_alloc(size = int(size))
|
||
|
|
if err != nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
return raw_data(bytes)
|
||
|
|
}
|
||
|
|
|
||
|
|
allocator_free_proc :: proc "c" (ptr: rawptr, user_data: rawptr) {
|
||
|
|
context = (cast(^runtime.Context)user_data)^
|
||
|
|
runtime.mem_free(ptr)
|
||
|
|
}
|