[reactos] 05/05: [OPENGL32] - Get rid of the TLS based implementation CORE-14024

[Jérôme Gardou]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=4067eb1454912b363bb71…

commit 4067eb1454912b363bb710b0aa78607dad703f5a
Author: Jérôme Gardou <jerome.gardou(a)reactos.org>
AuthorDate: Mon Nov 20 19:55:21 2017 +0100

    [OPENGL32]
     - Get rid of the TLS based implementation
    CORE-14024
---
 dll/opengl/opengl32/dllmain.c   | 48 ---------------------
 dll/opengl/opengl32/glapi_x86.s | 17 +-------
 dll/opengl/opengl32/opengl32.h  | 95 -----------------------------------------
 3 files changed, 1 insertion(+), 159 deletions(-)

diff --git a/dll/opengl/opengl32/dllmain.c b/dll/opengl/opengl32/dllmain.c
index 65649751fa..1aefff046b 100644
--- a/dll/opengl/opengl32/dllmain.c
+++ b/dll/opengl/opengl32/dllmain.c
@@ -7,61 +7,21 @@
 
 #include "opengl32.h"
 
-#ifdef OPENGL32_USE_TLS
-DWORD OglTlsIndex = 0xFFFFFFFF;
-
-BOOL init_tls_data(void)
-{
-    struct Opengl32_ThreadData* ThreadData;
-
-    ThreadData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ThreadData));
-    if(!ThreadData)
-        return FALSE;
-    TlsSetValue(OglTlsIndex, ThreadData);
-    ThreadData->glDispatchTable = &StubTable.glDispatchTable;
-    ThreadData->hglrc = NULL;
-    ThreadData->hdc = NULL;
-    ThreadData->dc_data = NULL;
-    return TRUE;
-}
-
-#endif
-
 BOOL WINAPI
 DllMain(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
 {
-#ifdef OPENGL32_USE_TLS
-    struct Opengl32_ThreadData* ThreadData;
-#endif
     switch ( Reason )
     {
         case DLL_PROCESS_ATTACH:
-#ifdef OPENGL32_USE_TLS
-            OglTlsIndex = TlsAlloc();
-            if(OglTlsIndex == TLS_OUT_OF_INDEXES)
-                return FALSE;
-#endif
             /* Initialize Context list */
             InitializeListHead(&ContextListHead);
             /* no break */
         case DLL_THREAD_ATTACH:
-#ifdef OPENGL32_USE_TLS
-            if (!init_tls_data())
-                return FALSE;
-#endif // defined(OPENGL32_USE_TLS)
             break;
 
         case DLL_THREAD_DETACH:
             /* Set NULL context for this thread */
             wglMakeCurrent(NULL, NULL);
-            /* Clean up */
-#ifdef OPENGL32_USE_TLS
-            ThreadData = TlsGetValue(OglTlsIndex);
-            if(ThreadData)
-                HeapFree(GetProcessHeap(), 0, ThreadData);
-#else
-            NtCurrentTeb()->glTable = NULL;
-#endif // defined(OPENGL32_USE_TLS)
         break;
         case DLL_PROCESS_DETACH:
             /* Clean up */
@@ -71,15 +31,7 @@ DllMain(HINSTANCE hInstance, DWORD Reason, LPVOID Reserved)
                 wglMakeCurrent(NULL, NULL);
                 IntDeleteAllContexts();
                 IntDeleteAllICDs();
-#ifdef OPENGL32_USE_TLS
-                ThreadData = TlsGetValue(OglTlsIndex);
-                if(ThreadData)
-                    HeapFree(GetProcessHeap(), 0, ThreadData);
-#endif
             }
-#ifdef OPENGL32_USE_TLS
-            TlsFree(OglTlsIndex);
-#endif
             break;
     }
 
diff --git a/dll/opengl/opengl32/glapi_x86.s b/dll/opengl/opengl32/glapi_x86.s
index 017dc7ef81..a1eec929d0 100644
--- a/dll/opengl/opengl32/glapi_x86.s
+++ b/dll/opengl/opengl32/glapi_x86.s
@@ -16,31 +16,16 @@ ASSUME nothing
 
 .code
 
-#ifdef OPENG32_USE_TLS
-EXTERN _OglTlsIndex:DWORD
-EXTERN _TlsGetValue@4:PROC
-#endif
-
 MACRO(USE_GL_FUNC, name, offset, stack)
 PUBLIC _gl&name&@&stack
 .PROC _gl&name&@&stack
 
-FPO 0, 0, 0, 0, 0, FRAME_FPO
+    FPO 0, 0, 0, 0, 0, FRAME_FPO
 
-#ifdef OPENG32_USE_TLS
-    push _OglTlsIndex
-    call _TlsGetValue@4
-    /* If we don't have a thread data, this is a nop */
-    test eax, eax
-    jz name&_fast_ret
-    /* Get the GL table */
-    mov eax, [eax]
-#else
     /* Get the TEB */
     mov eax, fs:[TEB_SELF]
     /* Get the GL table */
     mov eax, [eax + TEB_GL_TABLE]
-#endif
 
     /* If we don't have a dispatch table, this is a nop */
     test eax, eax
diff --git a/dll/opengl/opengl32/opengl32.h b/dll/opengl/opengl32/opengl32.h
index b454ac5051..8808ca55ff 100644
--- a/dll/opengl/opengl32/opengl32.h
+++ b/dll/opengl/opengl32/opengl32.h
@@ -112,99 +112,6 @@ struct wgl_dc_data
 void IntDeleteAllContexts(void);
 void IntDeleteAllICDs(void);
 
-#ifdef OPENGL32_USE_TLS
-extern DWORD OglTlsIndex;
-
-struct Opengl32_ThreadData
-{
-    const GLDISPATCHTABLE* glDispatchTable;
-    HGLRC hglrc;
-    HDC hdc;
-    struct wgl_dc_data* dc_data;
-    PVOID* icdData;
-};
-C_ASSERT(FIELD_OFFSET(struct Opengl32_ThreadData, glDispatchTable) == 0);
-
-/* dllmain.c */
-BOOL init_tls_data(void);
-
-FORCEINLINE
-void
-IntMakeCurrent(HGLRC hglrc, HDC hdc, struct wgl_dc_data* dc_data)
-{
-    struct Opengl32_ThreadData* thread_data = TlsGetValue(OglTlsIndex);
-    if (!thread_data)
-    {
-        OutputDebugStringA("Calling init_tls_data from IntMakeCurrent\n");
-        if (!init_tls_data())
-            OutputDebugStringA("init_tls_data failed, brace for impact...\n");
-
-        thread_data = TlsGetValue(OglTlsIndex);
-    }
-
-    thread_data->hglrc = hglrc;
-    thread_data->hdc = hdc;
-    thread_data->dc_data = dc_data;
-}
-
-FORCEINLINE
-HGLRC
-IntGetCurrentRC(void)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    return data ? data->hglrc : NULL;
-}
-
-FORCEINLINE
-HDC
-IntGetCurrentDC(void)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    return data ? data->hdc : NULL;
-}
-
-FORCEINLINE
-struct wgl_dc_data*
-IntGetCurrentDcData(void)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    return data->dc_data;
-}
-
-FORCEINLINE
-const GLDISPATCHTABLE *
-IntGetCurrentDispatchTable(void)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    return data->glDispatchTable;
-}
-
-FORCEINLINE
-void
-IntSetCurrentDispatchTable(const GLDISPATCHTABLE* table)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    data->glDispatchTable = table;
-}
-
-FORCEINLINE
-void
-IntSetCurrentICDPrivate(void* value)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    data->icdData = value;
-}
-
-FORCEINLINE
-void*
-IntGetCurrentICDPrivate(void)
-{
-    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
-    return data->icdData;
-}
-
-
-#else
 FORCEINLINE
 const GLDISPATCHTABLE*
 IntGetCurrentDispatchTable(void)
@@ -265,8 +172,6 @@ IntGetCurrentICDPrivate(void)
     return (void*)NtCurrentTeb()->glReserved1[0];
 }
 
-#endif // defined(OPENGL32_USE_TLS)
-
 FORCEINLINE
 DHGLRC
 IntGetCurrentDHGLRC(void)