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#include "../libGLESv2/precompiled.h"
//
// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// main.cpp: DLL entry point and management of thread-local data.
#include "libEGL/main.h"
#include "common/debug.h"
#ifndef QT_OPENGL_ES_2_ANGLE_STATIC
#if !defined(ANGLE_OS_WINRT)
static DWORD currentTLS = TLS_OUT_OF_INDEXES;
#else
static __declspec(thread) void *currentTLS = 0;
#endif
namespace egl { Current *getCurrent(); }
extern "C" BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
{
#if !defined(ANGLE_DISABLE_TRACE)
FILE *debug = fopen(TRACE_OUTPUT_FILE, "rt");
if (debug)
{
fclose(debug);
debug = fopen(TRACE_OUTPUT_FILE, "wt"); // Erase
if (debug)
{
fclose(debug);
}
}
#endif
#if !defined(ANGLE_OS_WINRT)
currentTLS = TlsAlloc();
if (currentTLS == TLS_OUT_OF_INDEXES)
{
return FALSE;
}
#endif
}
// Fall throught to initialize index
case DLL_THREAD_ATTACH:
{
egl::Current *current = egl::getCurrent();
if (current)
{
#if !defined(ANGLE_OS_WINRT)
TlsSetValue(currentTLS, current);
#endif
current->error = EGL_SUCCESS;
current->API = EGL_OPENGL_ES_API;
current->display = EGL_NO_DISPLAY;
current->drawSurface = EGL_NO_SURFACE;
current->readSurface = EGL_NO_SURFACE;
}
}
break;
case DLL_THREAD_DETACH:
{
egl::Current *current = egl::getCurrent();
if (current)
{
#if !defined(ANGLE_OS_WINRT)
LocalFree((HLOCAL)current);
#else
HeapFree(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS, current);
currentTLS = 0;
#endif
}
}
break;
case DLL_PROCESS_DETACH:
{
egl::Current *current = egl::getCurrent();
if (current)
{
#if !defined(ANGLE_OS_WINRT)
LocalFree((HLOCAL)current);
}
TlsFree(currentTLS);
#else
HeapFree(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS, current);
currentTLS = 0;
}
#endif
}
break;
default:
break;
}
return TRUE;
}
#endif // !QT_OPENGL_ES_2_ANGLE_STATIC
namespace egl
{
Current *getCurrent()
{
#ifndef QT_OPENGL_ES_2_ANGLE_STATIC
#if !defined(ANGLE_OS_WINRT)
Current *current = (Current*)TlsGetValue(currentTLS);
if (!current)
current = (Current*)LocalAlloc(LPTR, sizeof(Current));
return current;
#else
if (!currentTLS)
currentTLS = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS|HEAP_ZERO_MEMORY, sizeof(Current));
return (Current*)currentTLS;
#endif
#else
// No precautions for thread safety taken as ANGLE is used single-threaded in Qt.
static Current curr = { EGL_SUCCESS, EGL_OPENGL_ES_API, EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE };
return &curr;
#endif
}
void setCurrentError(EGLint error)
{
Current *current = getCurrent();
current->error = error;
}
EGLint getCurrentError()
{
Current *current = getCurrent();
return current->error;
}
void setCurrentAPI(EGLenum API)
{
Current *current = getCurrent();
current->API = API;
}
EGLenum getCurrentAPI()
{
Current *current = getCurrent();
return current->API;
}
void setCurrentDisplay(EGLDisplay dpy)
{
Current *current = getCurrent();
current->display = dpy;
}
EGLDisplay getCurrentDisplay()
{
Current *current = getCurrent();
return current->display;
}
void setCurrentDrawSurface(EGLSurface surface)
{
Current *current = getCurrent();
current->drawSurface = surface;
}
EGLSurface getCurrentDrawSurface()
{
Current *current = getCurrent();
return current->drawSurface;
}
void setCurrentReadSurface(EGLSurface surface)
{
Current *current = getCurrent();
current->readSurface = surface;
}
EGLSurface getCurrentReadSurface()
{
Current *current = getCurrent();
return current->readSurface;
}
void error(EGLint errorCode)
{
egl::setCurrentError(errorCode);
}
}
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