From 56dc6ecb70e6fc76d32d6a7194acb273b76bfe0e Mon Sep 17 00:00:00 2001
From: David Guillen Fandos
Date: Mon, 8 Mar 2021 18:44:03 +0100
Subject: Remove libco

This removes libco and all the usages of it (+pthreads).
Rewired all dynarecs and interpreter to return after every frame so that
libretro can process events. This required to make dynarec re-entrant.

Dynarecs were updated to check for new frame on every update (IRQ, cycle
exhaustion, I/O write, etc). The performance impact of doing so should
be minimal (and definitely outweight the libco gains). While at it,
fixed small issues to get a bit more perf: arm dynarec was not idling
correctly, mips was using stack when not needed, etc.

Tested on PSP (mips), OGA (armv7), Linux (x86 and interpreter). Not
tested on Android though.
---
 libco/scefiber.c | 96 --------------------------------------------------------
 1 file changed, 96 deletions(-)
 delete mode 100644 libco/scefiber.c

(limited to 'libco/scefiber.c')

diff --git a/libco/scefiber.c b/libco/scefiber.c
deleted file mode 100644
index a233bec..0000000
--- a/libco/scefiber.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
-  libco.win (2016-09-06)
-  authors: frangarcj
-  license: public domain
-*/
-
-#define LIBCO_C
-#include <libco.h>
-#include <stdlib.h>
-#include <psp2/sysmodule.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-static thread_local cothread_t co_active_ = 0;
-
-typedef struct SceFiber {
-	char reserved[128];
-} SceFiber __attribute__( ( aligned ( 8 ) ) ) ;
-
-int32_t _sceFiberInitializeImpl(SceFiber* fiber, char* name, void* entry, uint32_t argOnInitialize, void* addrContext, int32_t sizeContext, void* params);
-
-int32_t sceFiberFinalize(SceFiber* fiber);
-
-int32_t sceFiberRun(SceFiber* fiber, uint32_t argOnRunTo, uint32_t* argOnRun);
-
-int32_t sceFiberSwitch(SceFiber* fiber, uint32_t argOnRunTo, uint32_t* argOnRun);
-
-int32_t sceFiberReturnToThread(uint32_t argOnReturn, uint32_t* argOnRun);
-
-void co_thunk(uint32_t argOnInitialize, uint32_t argOnRun)
-{
-   ((void (*)(void))argOnInitialize)();
-}
-
-cothread_t co_active(void)
-{
-   if(!co_active_)
-   {
-		  sceSysmoduleLoadModule(SCE_SYSMODULE_FIBER);
-      co_active_ = (cothread_t)1;
-   }
-   return co_active_;
-}
-
-cothread_t co_create(unsigned int heapsize, void (*coentry)(void))
-{
-   SceFiber* tailFiber = malloc(sizeof(SceFiber));
-	 char * m_contextBuffer = malloc(sizeof(char)*heapsize);
-	 if(!co_active_)
-   {
-      sceSysmoduleLoadModule(SCE_SYSMODULE_FIBER);
-      co_active_ = (cothread_t)1;
-   }
-
-   //_sceFiberInitializeImpl
-   int ret = _sceFiberInitializeImpl(tailFiber, "tailFiber", co_thunk, (uint32_t)coentry, (void*) m_contextBuffer, heapsize, NULL);
-   if(ret==0){
-     return (cothread_t)tailFiber;
-   }else{
-     return (cothread_t)ret;
-   }
-
-}
-
-void co_delete(cothread_t cothread)
-{
-	 if(cothread == (cothread_t)1){
-		 return;
-	 }
-   sceFiberFinalize((SceFiber*)cothread);
-}
-
-void co_switch(cothread_t cothread)
-{
-
-   uint32_t argOnReturn = 0;
-   if(cothread == (cothread_t)1){
-     co_active_ = cothread;
-     sceFiberReturnToThread(0, NULL);
-   }else{
-		 SceFiber* theFiber = (SceFiber*)cothread;
-		 if(co_active_ == (cothread_t)1){
-			 co_active_ = cothread;
-			 sceFiberRun(theFiber, 0, &argOnReturn);
-		 }else{
-			 co_active_ = cothread;
-			 sceFiberSwitch(theFiber, 0, &argOnReturn);
-		 }
-   }
-}
-
-#ifdef __cplusplus
-}
-#endif
-- 
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