Checked in glx of cygwin-aiglx branch of git://anongit.freedesktop.org/~jturney/xserver

1 files changed, 84 insertions, 0 deletions

diff --git a/xorg-server/hw/xwin/glx/wgl_ext_api.c b/xorg-server/hw/xwin/glx/wgl_ext_api.c
new file mode 100644
index 000000000..ffe10884d
--- /dev/null
+++ b/xorg-server/hw/xwin/glx/wgl_ext_api.c
@@ -0,0 +1,84 @@
+/*
+ * File: wgl_ext_api.c
+ * Purpose: Wrapper functions for Win32 OpenGL wgl extension functions
+ *
+ * Authors: Jon TURNEY
+ *
+ * Copyright (c) Jon TURNEY 2009
+ *
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+
+#include <X11/Xwindows.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
+#include <glx/glxserver.h>
+#include <glx/glxext.h>
+#include "wglext.h"
+#include <wgl_ext_api.h>
+#include "glwindows.h"
+
+#define RESOLVE_DECL(type) \
+    static type type##proc = NULL;
+
+#define PRERESOLVE(type, symbol) \
+    type##proc = (type)wglGetProcAddress(symbol); \
+    if (type##proc == NULL) \
+        ErrorF("wglwrap: Can't resolve \"%s\"\n", symbol); \
+    else \
+        ErrorF("wglwrap: Resolved \"%s\"\n", symbol);
+
+#define RESOLVE_RET(type, symbol, retval) \
+  if (type##proc == NULL) { \
+  __glXErrorCallBack(0); \
+  return retval; \
+      }
+
+#define RESOLVE(procname, symbol) RESOLVE_RET(procname, symbol,)
+
+#define RESOLVED_PROC(type) type##proc
+
+/*
+ * There are extensions to the wgl*() API as well; again we call
+ * these functions by using wglGetProcAddress() to get a pointer
+ * to the function, and wrapping it for cdecl/stdcall conversion
+ *
+ * This should be autogenerated as well, really...
+ *
+ * We arrange to resolve the functions up front, as they need a
+ * context to work, as we like to use them to be able to select
+ * a context.  Again, this assumption fails badly on multimontor
+ * systems...
+ */
+
+/*
+  Include generated cdecl wrappers for stdcall WGL functions
+
+  function address must  found using wglGetProcAddress(),
+  but also stdcall so still need wrappers...
+
+  Include generated 
+*/
+
+#include "generated_wgl_wrappers.c"