Merge pull request #756 from pcercuei/update-lightrec-20230902
[pcsx_rearmed.git] / deps / libretro-common / libco / fiber.c
CommitLineData
3719602c
PC
1/*
2 libco.win (2008-01-28)
3 authors: Nach, byuu
4 license: public domain
5*/
6
7#define LIBCO_C
8#include <libco.h>
9#define WINVER 0x0400
10#define _WIN32_WINNT 0x0400
11#define WIN32_LEAN_AND_MEAN
12#include <windows.h>
13
14#ifdef __cplusplus
15extern "C" {
16#endif
17
18static thread_local cothread_t co_active_ = 0;
19
20static void __stdcall co_thunk(void *coentry)
21{
22 ((void (*)(void))coentry)();
23}
24
25cothread_t co_active(void)
26{
27 if (!co_active_)
28 {
29#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
30 ConvertThreadToFiberEx(0, FIBER_FLAG_FLOAT_SWITCH);
31#else
32 ConvertThreadToFiber(0);
33#endif
34 co_active_ = GetCurrentFiber();
35 }
36 return co_active_;
37}
38
39cothread_t co_create(unsigned int heapsize, void (*coentry)(void))
40{
41 if (!co_active_)
42 {
43#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
44 ConvertThreadToFiberEx(0, FIBER_FLAG_FLOAT_SWITCH);
45#else
46 ConvertThreadToFiber(0);
47#endif
48 co_active_ = GetCurrentFiber();
49 }
50
51#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
52 return (cothread_t)CreateFiberEx(heapsize, heapsize, FIBER_FLAG_FLOAT_SWITCH, co_thunk, (void*)coentry);
53#else
54 return (cothread_t)CreateFiber(heapsize, co_thunk, (void*)coentry);
55#endif
56}
57
58void co_delete(cothread_t cothread)
59{
60 DeleteFiber(cothread);
61}
62
63void co_switch(cothread_t cothread)
64{
65 co_active_ = cothread;
66 SwitchToFiber(cothread);
67}
68
69#ifdef __cplusplus
70}
71#endif