From c4a43873c5f2e39def45eb9ca24f538adf3f9196 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jfonseca@vmware.com>
Date: Wed, 5 May 2010 15:14:02 +0100
Subject: [PATCH] wgl: Stub WGL_ARB_pbuffer support.

See http://www.opengl.org/registry/specs/ARB/wgl_pbuffer.txt
---
 src/gallium/state_trackers/wgl/SConscript     |  1 +
 .../wgl/stw_ext_extensionsstring.c            |  1 +
 .../state_trackers/wgl/stw_ext_pbuffer.c      | 80 +++++++++++++++++++
 .../state_trackers/wgl/stw_getprocaddress.c   |  7 ++
 4 files changed, 89 insertions(+)
 create mode 100644 src/gallium/state_trackers/wgl/stw_ext_pbuffer.c

diff --git a/src/gallium/state_trackers/wgl/SConscript b/src/gallium/state_trackers/wgl/SConscript
index ec55f042f90..936f5502bc8 100644
--- a/src/gallium/state_trackers/wgl/SConscript
+++ b/src/gallium/state_trackers/wgl/SConscript
@@ -22,6 +22,7 @@ sources = [
     'stw_device.c',
     'stw_ext_extensionsstring.c',
     'stw_ext_gallium.c',
+    'stw_ext_pbuffer.c',
     'stw_ext_pixelformat.c',
     'stw_ext_swapinterval.c',
     'stw_framebuffer.c',
diff --git a/src/gallium/state_trackers/wgl/stw_ext_extensionsstring.c b/src/gallium/state_trackers/wgl/stw_ext_extensionsstring.c
index 62c859e1f92..ecb326f1cf6 100644
--- a/src/gallium/state_trackers/wgl/stw_ext_extensionsstring.c
+++ b/src/gallium/state_trackers/wgl/stw_ext_extensionsstring.c
@@ -37,6 +37,7 @@
 static const char *stw_extension_string = 
    "WGL_ARB_extensions_string "
    "WGL_ARB_multisample "
+   "WGL_ARB_pbuffer "
    "WGL_ARB_pixel_format "
 /*   "WGL_EXT_swap_interval " */
    "WGL_EXT_extensions_string";
diff --git a/src/gallium/state_trackers/wgl/stw_ext_pbuffer.c b/src/gallium/state_trackers/wgl/stw_ext_pbuffer.c
new file mode 100644
index 00000000000..0866d41d718
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/stw_ext_pbuffer.c
@@ -0,0 +1,80 @@
+/**************************************************************************
+ * 
+ * Copyright 2010 VMware, Inc.
+ * All Rights Reserved.
+ * 
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+
+
+HPBUFFERARB WINAPI
+wglCreatePbufferARB(HDC hDC,
+                    int iPixelFormat,
+                    int iWidth,
+                    int iHeight,
+                    const int *piAttribList)
+{
+   /* FIXME */
+   return NULL;
+}
+
+
+HDC WINAPI
+wglGetPbufferDCARB(HPBUFFERARB hPbuffer)
+{
+   /* FIXME */
+   return NULL;
+}
+
+
+int WINAPI
+wglReleasePbufferDCARB(HPBUFFERARB hPbuffer,
+                       HDC hDC)
+{
+   /* FIXME */
+   return 0;
+}
+
+
+BOOL WINAPI
+wglDestroyPbufferARB(HPBUFFERARB hPbuffer)
+{
+   /* FIXME */
+   return FALSE;
+}
+
+
+BOOL WINAPI
+wglQueryPbufferARB(HPBUFFERARB hPbuffer,
+                   int iAttribute,
+                   int *piValue)
+{
+   /* FIXME */
+   return FALSE;
+}
diff --git a/src/gallium/state_trackers/wgl/stw_getprocaddress.c b/src/gallium/state_trackers/wgl/stw_getprocaddress.c
index d43a55fa9e6..b0aef943d30 100644
--- a/src/gallium/state_trackers/wgl/stw_getprocaddress.c
+++ b/src/gallium/state_trackers/wgl/stw_getprocaddress.c
@@ -50,6 +50,13 @@ static const struct stw_extension_entry stw_extension_entries[] = {
    /* WGL_ARB_extensions_string */
    STW_EXTENSION_ENTRY( wglGetExtensionsStringARB ),
 
+   /* WGL_ARB_pbuffer */
+   STW_EXTENSION_ENTRY( wglCreatePbufferARB ),
+   STW_EXTENSION_ENTRY( wglGetPbufferDCARB ),
+   STW_EXTENSION_ENTRY( wglReleasePbufferDCARB ),
+   STW_EXTENSION_ENTRY( wglDestroyPbufferARB ),
+   STW_EXTENSION_ENTRY( wglQueryPbufferARB ),
+
    /* WGL_ARB_pixel_format */
    STW_EXTENSION_ENTRY( wglChoosePixelFormatARB ),
    STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB ),
-- 
2.30.2