[PATCH 1/2] opengl32: Do not expose ARB_buffer_storage on wow64.

[Zebediah Figura]

From: Zebediah Figura

---
 dlls/opengl32/unix_wgl.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/dlls/opengl32/unix_wgl.c b/dlls/opengl32/unix_wgl.c
index 6c3379b90a2..b6f7a37ec21 100644
--- a/dlls/opengl32/unix_wgl.c
+++ b/dlls/opengl32/unix_wgl.c
@@ -43,6 +43,13 @@

WINE_DEFAULT_DEBUG_CHANNEL(opengl);

+static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
+
+static BOOL is_wow64(void)
+{
+    return !!NtCurrentTeb()->WowTebOffset;
+}
+
 static pthread_mutex_t wgl_lock = PTHREAD_MUTEX_INITIALIZER;

/* handle management */
@@ -168,7 +175,13 @@ static GLubyte *filter_extensions_list( const char *extensions, const char *disa
         memcpy( p, extensions, end - extensions );
         p[end - extensions] = 0;

-        if (!has_extension( disabled, p, strlen( p ) ))
+        /* We do not support GL_MAP_PERSISTENT_BIT, and hence
+         * ARB_buffer_storage, on wow64. */
+        if (is_win64 && is_wow64() && (!strcmp( p, "ARB_buffer_storage" ) || !strcmp( p, "EXT_buffer_storage" )))
+        {
+            TRACE( "-- %s (disabled due to wow64)\n", p );
+        }
+        else if (!has_extension( disabled, p, strlen( p ) ))
         {
             TRACE( "++ %s\n", p );
             p += end - extensions;
@@ -208,7 +221,14 @@ static GLuint *filter_extensions_index( TEB *teb, const char *disabled )
     for (j = 0; j < extensions_count; ++j)
     {
         ext = (const char *)funcs->ext.p_glGetStringi( GL_EXTENSIONS, j );
-        if (!has_extension( disabled, ext, strlen( ext ) ))
+
+        /* We do not support GL_MAP_PERSISTENT_BIT, and hence
+         * ARB_buffer_storage, on wow64. */
+        if (is_win64 && is_wow64() && (!strcmp( ext, "ARB_buffer_storage" ) || !strcmp( ext, "EXT_buffer_storage" )))
+        {
+            TRACE( "-- %s (disabled due to wow64)\n", ext );
+        }
+        else if (!has_extension( disabled, ext, strlen( ext ) ))
         {
             TRACE( "++ %s\n", ext );
         }