Refactor process/thread attach/detach.

These functions looked too much like EGL entry functions.

Change-Id: I29dda78a34d3eb53aad002bec83ea7a77cfac1c8
Reviewed-on: https://swiftshader-review.googlesource.com/5580
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
diff --git a/src/OpenGL/libEGL/main.cpp b/src/OpenGL/libEGL/main.cpp
index 6cae329..2479b4e 100644
--- a/src/OpenGL/libEGL/main.cpp
+++ b/src/OpenGL/libEGL/main.cpp
@@ -37,11 +37,13 @@
 #define DESTRUCTOR
 #endif
 
-static void eglAttachThread()
+namespace egl
+{
+void attachThread()
 {
 	TRACE("()");
 
-	egl::Current *current = new egl::Current;
+	Current *current = new Current;
 
 	if(current)
 	{
@@ -56,19 +58,14 @@
 	}
 }
 
-static void eglDetachThread()
+void detachThread()
 {
 	TRACE("()");
 
-	egl::Current *current = (egl::Current*)sw::Thread::getLocalStorage(currentTLS);
-
-	if(current)
-	{
-		delete current;
-	}
+	delete (Current*)sw::Thread::getLocalStorage(currentTLS);
 }
 
-CONSTRUCTOR static void eglAttachProcess()
+CONSTRUCTOR void attachProcess()
 {
 	TRACE("()");
 
@@ -90,16 +87,17 @@
 		return;
 	}
 
-	eglAttachThread();
+	attachThread();
 }
 
-DESTRUCTOR static void eglDetachProcess()
+DESTRUCTOR void detachProcess()
 {
 	TRACE("()");
 
-	eglDetachThread();
+	detachThread();
 	sw::Thread::freeLocalStorageKey(currentTLS);
 }
+}
 
 #if defined(_WIN32)
 static INT_PTR CALLBACK DebuggerWaitDialogProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
@@ -147,16 +145,16 @@
 		#ifndef NDEBUG
 			WaitForDebugger(instance);
 		#endif
-		eglAttachProcess();
+		egl::attachProcess();
 		break;
 	case DLL_THREAD_ATTACH:
-		eglAttachThread();
+		egl::attachThread();
 		break;
 	case DLL_THREAD_DETACH:
-		eglDetachThread();
+		egl::detachThread();
 		break;
 	case DLL_PROCESS_DETACH:
-		eglDetachProcess();
+		egl::detachProcess();
 		break;
 	default:
 		break;
@@ -168,13 +166,13 @@
 
 namespace egl
 {
-static Current *eglGetCurrent(void)
+static Current *getCurrent(void)
 {
 	Current *current = (Current*)sw::Thread::getLocalStorage(currentTLS);
 
 	if(!current)
 	{
-		eglAttachThread();
+		attachThread();
 	}
 
 	return (Current*)sw::Thread::getLocalStorage(currentTLS);
@@ -182,49 +180,49 @@
 
 void setCurrentError(EGLint error)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	current->error = error;
 }
 
 EGLint getCurrentError()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->error;
 }
 
 void setCurrentAPI(EGLenum API)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	current->API = API;
 }
 
 EGLenum getCurrentAPI()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->API;
 }
 
 void setCurrentDisplay(EGLDisplay dpy)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	current->display = dpy;
 }
 
 EGLDisplay getCurrentDisplay()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->display;
 }
 
 void setCurrentContext(egl::Context *ctx)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	if(ctx)
 	{
@@ -241,14 +239,14 @@
 
 egl::Context *getCurrentContext()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->context;
 }
 
 void setCurrentDrawSurface(egl::Surface *surface)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	if(surface)
 	{
@@ -265,14 +263,14 @@
 
 egl::Surface *getCurrentDrawSurface()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->drawSurface;
 }
 
 void setCurrentReadSurface(egl::Surface *surface)
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	if(surface)
 	{
@@ -289,7 +287,7 @@
 
 egl::Surface *getCurrentReadSurface()
 {
-	Current *current = eglGetCurrent();
+	Current *current = getCurrent();
 
 	return current->readSurface;
 }
diff --git a/src/OpenGL/libEGL/main.h b/src/OpenGL/libEGL/main.h
index f604a59..f3231f0 100644
--- a/src/OpenGL/libEGL/main.h
+++ b/src/OpenGL/libEGL/main.h
@@ -39,6 +39,8 @@
 		Surface *readSurface;
 	};
 
+	void detachThread();
+
 	void setCurrentError(EGLint error);
 	EGLint getCurrentError();