From d0840bf250ec49b0ab3533d0ccf083fba55b21bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Gardou?= <jerome.gardou@reactos.org>
Date: Mon, 16 Sep 2013 17:17:04 +0000
Subject: [PATCH] [OPENGL32_NEW]  - Call DrvSetCallbackProcs when initializing
 the ICD. Prototype taken from mesa ICD, functionality documented by one of
 them.

svn path=/trunk/; revision=60171
---
 reactos/dll/opengl/opengl32_new/icdload.c | 36 +++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/reactos/dll/opengl/opengl32_new/icdload.c b/reactos/dll/opengl/opengl32_new/icdload.c
index 00a15d4ce89..61f60cd236f 100644
--- a/reactos/dll/opengl/opengl32_new/icdload.c
+++ b/reactos/dll/opengl/opengl32_new/icdload.c
@@ -22,6 +22,31 @@ static CRITICAL_SECTION icdload_cs = {NULL, -1, 0, 0, 0, 0};
 static struct ICD_Data* ICD_Data_List = NULL;
 static const WCHAR OpenGLDrivers_Key[] = L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\OpenGLDrivers";
 
+static void APIENTRY wglSetCurrentValue(PVOID value)
+{
+#ifdef OPENGL32_USE_TLS
+    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
+    data->icdData = value;
+#else
+    NtCurrentTeb()->glReserved2 = value;
+#endif
+}
+
+static PVOID APIENTRY wglGetCurrentValue()
+{
+#ifdef OPENGL32_USE_TLS
+    struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
+    return data->icdData;
+#else
+    return NtCurrentTeb()->glReserved2;
+#endif
+}
+
+static DHGLRC wglGetDHGLRC(struct wgl_context* context)
+{
+    return context->dhglrc;
+}
+
 /* Retrieves the ICD data (driver version + relevant DLL entry points) for a device context */
 struct ICD_Data* IntGetIcdData(HDC hdc)
 {
@@ -32,6 +57,7 @@ struct ICD_Data* IntGetIcdData(HDC hdc)
     HKEY OglKey, DrvKey;
     WCHAR DllName[MAX_PATH];
     BOOL (WINAPI *DrvValidateVersion)(DWORD);
+    void (WINAPI *DrvSetCallbackProcs)(int nProcs, PROC* pProcs);
     
     /* First, see if the driver supports this */
     dwInput = OPENGL_GETINFO;
@@ -192,6 +218,16 @@ struct ICD_Data* IntGetIcdData(HDC hdc)
         }
     }
     
+    /* Pass the callbacks */
+    DrvSetCallbackProcs = (void*)GetProcAddress(data->hModule, "DrvSetCallbackProcs");
+    if(DrvSetCallbackProcs)
+    {
+        PROC callbacks[] = {(PROC)wglGetCurrentValue,
+            (PROC)wglSetCurrentValue,
+            (PROC)wglGetDHGLRC};
+        DrvSetCallbackProcs(3, callbacks);
+    }
+    
     /* Get the DLL exports */
 #define DRV_LOAD(x) do                                  \
 {                                                       \