Roll back to ANGLE/2845

1 files changed, 169 insertions, 81 deletions

diff --git a/gfx/angle/src/libGLESv2/global_state.cpp b/gfx/angle/src/libGLESv2/global_state.cpp
index bc776b1f7..fa681bde1 100755
--- a/gfx/angle/src/libGLESv2/global_state.cpp
+++ b/gfx/angle/src/libGLESv2/global_state.cpp
@@ -8,141 +8,229 @@
 
 #include "libGLESv2/global_state.h"
 
+#include "libANGLE/Context.h"
+#include "libANGLE/Error.h"
+
 #include "common/debug.h"
 #include "common/platform.h"
 #include "common/tls.h"
 
-#include "libANGLE/Thread.h"
-
-namespace gl
+namespace
 {
 
-Context *GetGlobalContext()
+static TLSIndex currentTLS = TLS_INVALID_INDEX;
+
+struct Current
+{
+    EGLint error;
+    EGLenum API;
+    egl::Display *display;
+    egl::Surface *drawSurface;
+    egl::Surface *readSurface;
+    gl::Context *context;
+};
+
+Current *AllocateCurrent()
 {
-    egl::Thread *thread = egl::GetCurrentThread();
-    return thread->getContext();
+    ASSERT(currentTLS != TLS_INVALID_INDEX);
+    if (currentTLS == TLS_INVALID_INDEX)
+    {
+        return NULL;
+    }
+
+    Current *current = new Current();
+    current->error = EGL_SUCCESS;
+    current->API = EGL_OPENGL_ES_API;
+    current->display = reinterpret_cast<egl::Display*>(EGL_NO_DISPLAY);
+    current->drawSurface = reinterpret_cast<egl::Surface*>(EGL_NO_SURFACE);
+    current->readSurface = reinterpret_cast<egl::Surface*>(EGL_NO_SURFACE);
+    current->context = reinterpret_cast<gl::Context*>(EGL_NO_CONTEXT);
+
+    if (!SetTLSValue(currentTLS, current))
+    {
+        ERR("Could not set thread local storage.");
+        return NULL;
+    }
+
+    return current;
 }
 
-Context *GetValidGlobalContext()
+Current *GetCurrentData()
 {
-    egl::Thread *thread = egl::GetCurrentThread();
-    return thread->getValidContext();
+    // Create a TLS index if one has not been created for this DLL
+    if (currentTLS == TLS_INVALID_INDEX)
+    {
+        currentTLS = CreateTLSIndex();
+    }
+
+    Current *current = reinterpret_cast<Current*>(GetTLSValue(currentTLS));
+
+    // ANGLE issue 488: when the dll is loaded after thread initialization,
+    // thread local storage (current) might not exist yet.
+    return (current ? current : AllocateCurrent());
 }
 
-}  // namespace gl
+#ifdef ANGLE_PLATFORM_WINDOWS
 
-namespace egl
+void DeallocateCurrent()
 {
+    Current *current = reinterpret_cast<Current*>(GetTLSValue(currentTLS));
+    SafeDelete(current);
+    SetTLSValue(currentTLS, NULL);
+}
 
-namespace
+extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD reason, LPVOID)
 {
+    switch (reason)
+    {
+      case DLL_PROCESS_ATTACH:
+        currentTLS = CreateTLSIndex();
+        if (currentTLS == TLS_INVALID_INDEX)
+        {
+            return FALSE;
+        }
+        AllocateCurrent();
+        break;
 
-static TLSIndex threadTLS = TLS_INVALID_INDEX;
+      case DLL_THREAD_ATTACH:
+        AllocateCurrent();
+        break;
 
-Thread *AllocateCurrentThread()
-{
-    ASSERT(threadTLS != TLS_INVALID_INDEX);
-    if (threadTLS == TLS_INVALID_INDEX)
-    {
-        return nullptr;
-    }
+      case DLL_THREAD_DETACH:
+        DeallocateCurrent();
+        break;
 
-    Thread *thread = new Thread();
-    if (!SetTLSValue(threadTLS, thread))
-    {
-        ERR("Could not set thread local storage.");
-        return nullptr;
+      case DLL_PROCESS_DETACH:
+        DeallocateCurrent();
+        if (currentTLS != TLS_INVALID_INDEX)
+        {
+            DestroyTLSIndex(currentTLS);
+            currentTLS = TLS_INVALID_INDEX;
+        }
+        break;
     }
 
-    return thread;
+    return TRUE;
 }
+#endif
 
-}  // anonymous namespace
+}
 
-Thread *GetCurrentThread()
+namespace gl
 {
-    // Create a TLS index if one has not been created for this DLL
-    if (threadTLS == TLS_INVALID_INDEX)
+
+Context *GetGlobalContext()
+{
+    Current *current = GetCurrentData();
+
+    return current->context;
+}
+
+Context *GetValidGlobalContext()
+{
+    gl::Context *context = GetGlobalContext();
+    if (context)
     {
-        threadTLS = CreateTLSIndex();
+        if (context->isContextLost())
+        {
+            context->handleError(gl::Error(GL_OUT_OF_MEMORY, "Context has been lost."));
+            return nullptr;
+        }
+        else
+        {
+            return context;
+        }
     }
+    return nullptr;
+}
 
-    Thread *current = static_cast<Thread *>(GetTLSValue(threadTLS));
+}
 
-    // ANGLE issue 488: when the dll is loaded after thread initialization,
-    // thread local storage (current) might not exist yet.
-    return (current ? current : AllocateCurrentThread());
+namespace egl
+{
+
+void SetGlobalError(const Error &error)
+{
+    Current *current = GetCurrentData();
+
+    current->error = error.getCode();
 }
 
-}  // namespace egl
+EGLint GetGlobalError()
+{
+    Current *current = GetCurrentData();
 
-#ifdef ANGLE_PLATFORM_WINDOWS
-namespace egl
+    return current->error;
+}
+
+EGLenum GetGlobalAPI()
 {
+    Current *current = GetCurrentData();
 
-namespace
+    return current->API;
+}
+
+void SetGlobalAPI(EGLenum API)
 {
+    Current *current = GetCurrentData();
 
-bool DeallocateCurrentThread()
+    current->API = API;
+}
+
+void SetGlobalDisplay(Display *dpy)
 {
-    Thread *thread = static_cast<Thread *>(GetTLSValue(threadTLS));
-    SafeDelete(thread);
-    return SetTLSValue(threadTLS, nullptr);
+    Current *current = GetCurrentData();
+
+    current->display = dpy;
 }
 
-bool InitializeProcess()
+Display *GetGlobalDisplay()
 {
-    threadTLS = CreateTLSIndex();
-    if (threadTLS == TLS_INVALID_INDEX)
-    {
-        return false;
-    }
+    Current *current = GetCurrentData();
 
-    return AllocateCurrentThread() != nullptr;
+    return current->display;
 }
 
-bool TerminateProcess()
+void SetGlobalDrawSurface(Surface *surface)
 {
-    if (!DeallocateCurrentThread())
-    {
-        return false;
-    }
+    Current *current = GetCurrentData();
 
-    if (threadTLS != TLS_INVALID_INDEX)
-    {
-        TLSIndex tlsCopy = threadTLS;
-        threadTLS        = TLS_INVALID_INDEX;
+    current->drawSurface = surface;
+}
 
-        if (!DestroyTLSIndex(tlsCopy))
-        {
-            return false;
-        }
-    }
+Surface *GetGlobalDrawSurface()
+{
+    Current *current = GetCurrentData();
+
+    return current->drawSurface;
+}
 
-    return true;
+void SetGlobalReadSurface(Surface *surface)
+{
+    Current *current = GetCurrentData();
+
+    current->readSurface = surface;
 }
 
-}  // anonymous namespace
+Surface *GetGlobalReadSurface()
+{
+    Current *current = GetCurrentData();
 
-}  // namespace egl
+    return current->readSurface;
+}
 
-extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD reason, LPVOID)
+void SetGlobalContext(gl::Context *context)
 {
-    switch (reason)
-    {
-        case DLL_PROCESS_ATTACH:
-            return static_cast<BOOL>(egl::InitializeProcess());
+    Current *current = GetCurrentData();
 
-        case DLL_THREAD_ATTACH:
-            return static_cast<BOOL>(egl::AllocateCurrentThread() != nullptr);
+    current->context = context;
+}
 
-        case DLL_THREAD_DETACH:
-            return static_cast<BOOL>(egl::DeallocateCurrentThread());
+gl::Context *GetGlobalContext()
+{
+    Current *current = GetCurrentData();
 
-        case DLL_PROCESS_DETACH:
-            return static_cast<BOOL>(egl::TerminateProcess());
-    }
+    return current->context;
+}
 
-    return TRUE;
 }
-#endif  // ANGLE_PLATFORM_WINDOWS