Cygwin/X: AIGLX using native WGL

A rewrite of the XWin DDX AIGLX code to actually make it do something useful again

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>

configure.ac

@@ -2220,6 +2220,7 @@ hw/dmx/Makefile
 hw/vfb/Makefile
 hw/xnest/Makefile
 hw/xwin/Makefile
+hw/xwin/glx/Makefile
 hw/xquartz/Makefile
 hw/xquartz/GL/Makefile
 hw/xquartz/bundle/Makefile

hw/xwin/InitOutput.c

@@ -99,7 +99,7 @@ extern HMODULE			g_hmodCommonControls;
 extern FARPROC			g_fpTrackMouseEvent;
 extern Bool			g_fNoHelpMessageBox;                     
 extern Bool			g_fSilentDupError;                     
-  
+extern Bool                     g_fNativeGl;
 
 /*
  * Function prototypes
@@ -187,6 +187,17 @@ winClipboardShutdown (void)
 }
 #endif
 
+void
+ddxPushProviders(void)
+{
+#ifdef XWIN_GLX_WINDOWS
+  if (g_fNativeGl)
+    {
+      /* install the native GL provider */
+      glxWinPushNativeProvider();
+    }
+#endif
+}
 
 #if defined(DDXBEFORERESET)
 /*
@@ -890,6 +901,11 @@ winUseMsg (void)
   ErrorF ("-[no]unixkill\n"
           "\tCtrl+Alt+Backspace exits the X Server.\n");
 
+#ifdef XWIN_GLX_WINDOWS
+  ErrorF ("-[no]wgl\n"
+	  "\tEnable the GLX extension to use the native Windows WGL interface for accelerated OpenGL\n");
+#endif
+
   ErrorF ("-[no]winkill\n"
           "\tAlt+F4 exits the X Server.\n");
 

hw/xwin/Makefile.am

@@ -13,9 +13,10 @@ DEFS_CLIPBOARD = -DXWIN_CLIPBOARD
 endif
 
 if XWIN_GLX_WINDOWS
-SRCS_GLX_WINDOWS = \
+GLX_DIR = glx
-	winpriv.c
 DEFS_GLX_WINDOWS = -DXWIN_GLX_WINDOWS
+XWIN_GLX_LIBS = $(top_builddir)/hw/xwin/glx/libXwinGLX.la
+XWIN_GLX_LINK_FLAGS = -lopengl32
 endif
 
 if XWIN_MULTIWINDOW
@@ -125,7 +126,6 @@ SRCS =	InitInput.c \
 	$(top_srcdir)/mi/miinitext.c \
 	$(top_srcdir)/fb/fbcmap_mi.c \
 	$(SRCS_CLIPBOARD) \
-	$(SRCS_GLX_WINDOWS) \
 	$(SRCS_MULTIWINDOW) \
 	$(SRCS_MULTIWINDOWEXTWM) \
 	$(SRCS_NATIVEGDI) \
@@ -146,14 +146,13 @@ XWin_SOURCES = $(SRCS)
 
 INCLUDES = -I$(top_srcdir)/miext/rootless
 
-XWin_DEPENDENCIES = $(XWIN_LIBS)
+XWin_DEPENDENCIES = $(MULTIWINDOWEXTWM_LIBS) $(XWIN_GLX_LIBS) $(XWIN_LIBS) $(MAIN_LIB) $(XSERVER_LIBS)
-XWin_LDADD = $(MULTIWINDOWEXTWM_LIBS) $(XWIN_LIBS) $(MAIN_LIB) $(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XWIN_SYS_LIBS)
+XWin_LDADD = $(MULTIWINDOWEXTWM_LIBS) $(XWIN_GLX_LIBS) $(XWIN_GLX_LINK_FLAGS) $(XWIN_LIBS) $(MAIN_LIB) $(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XWIN_SYS_LIBS)
+XWin_LDFLAGS = -mwindows -static
 
 .rc.o:
 	$(AM_V_GEN)$(WINDRES) --use-temp-file -i $< --input-format=rc -o $@ -O coff -I $(top_builddir)/include
 
-XWin_LDFLAGS = -mwindows -static
-
 winprefsyacc.h: winprefsyacc.c
 winprefslex.c: winprefslex.l winprefsyacc.c winprefsyacc.h
 
@@ -164,12 +163,8 @@ AM_YFLAGS = -d
 AM_LFLAGS = -i
 AM_CFLAGS = -DHAVE_XWIN_CONFIG_H $(DIX_CFLAGS) \
             $(XWINMODULES_CFLAGS) \
-            -DXFree86Server
+            -DXFree86Server \
-
+            -I$(top_srcdir)
-GLX_EXTRAS = \
-	glx/glwindows.h \
-	glx/glwrap.c \
-	glx/indirect.c
 
 MAN_SRCS = XWin.man.pre XWinrc.man.pre
 
@@ -198,7 +193,6 @@ install-exec-hook:
 	(cd $(DESTDIR)$(bindir) && rm -f X && $(LN_S) XWin$(EXEEXT) X)
 
 EXTRA_DIST = \
-	$(GLX_EXTRAS) \
 	$(MAN_SRCS) \
 	$(xwinconfig_DATA) \
 	X.ico \
@@ -226,3 +220,6 @@ EXTRA_DIST = \
 
 relink:
 	$(AM_V_at)rm -f XWin$(EXEEXT) && $(MAKE) XWin$(EXEEXT)
+
+SUBDIRS = $(GLX_DIR) .
+DIST_SUBDIRS = glx .

hw/xwin/glx/.gitignore

@@ -0,0 +1,8 @@
+# ignore downloaded and generated files
+generated_gl_wrappers.c
+generated_wgl_wrappers.c
+gl.spec
+gl.tm
+wgl.tm
+wglext.spec
+wglext.h

hw/xwin/glx/Makefile.am

@@ -0,0 +1,59 @@
+noinst_LTLIBRARIES = libXwinGLX.la
+
+libXwinGLX_la_SOURCES = \
+	winpriv.c \
+	glwindows.h \
+	glwrap.c \
+	indirect.c \
+	wgl_ext_api.c
+
+if XWIN_MULTIWINDOW
+DEFS_MULTIWINDOW = -DXWIN_MULTIWINDOW
+endif
+
+if XWIN_MULTIWINDOWEXTWM
+DEFS_MULTIWINDOWEXTWM = -DXWIN_MULTIWINDOWEXTWM
+endif
+
+DEFS =  $(DEFS_MULTIWINDOW) $(DEFS_MULTIWINDOWEXTWM)
+
+INCLUDES = -I$(top_srcdir)/miext/rootless
+
+AM_CFLAGS = -DHAVE_XWIN_CONFIG_H $(DIX_CFLAGS) \
+            $(XWINMODULES_CFLAGS) \
+            -I$(top_srcdir) \
+            -I$(top_srcdir)/hw/xwin/
+
+glwrap.c: generated_gl_wrappers.c
+wgl_ext_api.c: generated_wgl_wrappers.c wglext.h
+wgl_ext_api.h: wglext.h
+indirect.c: wgl_ext_api.h
+
+SPEC_FILES = gl.spec gl.tm wglext.spec wgl.tm
+
+gl.spec:
+	wget http://www.opengl.org/registry/api/gl.spec
+
+gl.tm:
+	wget http://www.opengl.org/registry/api/gl.tm
+
+wglext.spec:
+	wget http://www.opengl.org/registry/api/wglext.spec
+
+wgl.tm:
+	wget http://www.opengl.org/registry/api/wgl.tm
+
+generated_gl_wrappers.c: gen_gl_wrappers.py gl.spec gl.tm
+	./gen_gl_wrappers.py --spec=gl.spec --typemap=gl.tm --dispatch-header=$(top_srcdir)/glx/dispatch.h --staticwrappers >generated_gl_wrappers.c
+
+generated_wgl_wrappers.c: gen_gl_wrappers.py wglext.spec wgl.tm
+	./gen_gl_wrappers.py --spec=wglext.spec --typemap=wgl.tm --prefix=wgl --preresolve >generated_wgl_wrappers.c
+
+wglext.h:
+	wget http://www.opengl.org/registry/api/wglext.h
+
+BUILT_SOURCES = generated_gl_wrappers.c generated_wgl_wrappers.c
+CLEANFILES = $(BUILT_SOURCES)
+DISTCLEANFILES = $(SPEC_FILES) wglext.h
+
+EXTRA_DIST = gen_gl_wrappers.py $(SPEC_FILES) wglext.h

hw/xwin/glx/gen_gl_wrappers.py

@@ -0,0 +1,319 @@
+#!/usr/bin/python
+#
+# Comedy python script to generate cdecl to stdcall wrappers for GL functions
+#
+# This is designed to operate on OpenGL spec files from
+# http://www.opengl.org/registry/api/
+#
+#
+# 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.
+#
+# Except as contained in this notice, the name(s) of the above copyright
+# holders shall not be used in advertising or otherwise to promote the sale,
+# use or other dealings in this Software without prior written authorization.
+#
+
+import sys
+import re
+import getopt
+
+dispatchheader = ''
+prefix = 'gl'
+preresolve = False
+staticwrappers = False
+
+opts, args = getopt.getopt(sys.argv[1:], "", ['spec=', 'typemap=', 'dispatch-header=', 'prefix=', 'preresolve', 'staticwrappers' ])
+
+for o,a in opts:
+        if o == '--typemap' :
+                typemapfile = a
+        elif o == '--dispatch-header' :
+                dispatchheader = a
+        elif o == '--spec' :
+                specfile = a
+        elif o == '--prefix' :
+                prefix = a
+        elif o == '--preresolve' :
+                preresolve = True
+        elif o == '--staticwrappers' :
+                staticwrappers = True
+
+#
+# look for all the SET_ macros in dispatch.h, this is the set of functions
+# we need to generate
+#
+
+dispatch = {}
+
+if dispatchheader :
+        fh = open(dispatchheader)
+        dispatchh = fh.readlines()
+
+        dispatch_regex = re.compile(r'#define\sSET_(\S*)\(')
+
+        for line in dispatchh :
+                line = line.strip()
+                m1 = dispatch_regex.search(line)
+
+                if m1 :
+                        dispatch[m1.group(1)] = 1
+
+        del dispatch['by_offset']
+
+#
+# read the typemap .tm file
+#
+
+typemap = {}
+
+fh = open(typemapfile)
+tm = fh.readlines()
+
+typemap_regex = re.compile(r'#define\sSET_(\S*)\(')
+
+for line in tm :
+        # ignore everything after a '#' as a comment
+        hash = line.find('#')
+        if hash != -1 :
+                line = line[:hash-1]
+
+        # ignore blank lines
+        if line.startswith('#') or len(line) == 0 :
+                continue
+
+        l = line.split(',')
+        typemap[l[0]] = l[3].strip()
+
+# interestingly, * is not a C type
+if typemap['void'] == '*' :
+        typemap['void'] = 'void'
+
+#
+# crudely parse the .spec file
+#
+
+r1 = re.compile(r'\t(\S*)\s+(\S*.*)')
+r2 = re.compile(r'(.*)\((.*)\)')
+r3 = re.compile(r'glWindowPos.*MESA')
+r4 = re.compile(r'gl.*Program(s|)NV')
+r5 = re.compile(r'glGetVertexAttribfvNV')
+
+wrappers = {}
+
+fh = open(specfile)
+glspec = fh.readlines()
+param_count = 0
+
+for line in glspec :
+        line = line.rstrip()
+
+        # ignore everything after a '#' as a comment
+        hash = line.find('#')
+        if hash != -1 :
+                line = line[:hash-1]
+
+        # ignore blank lines
+        if line.startswith('#') or len(line) == 0 :
+                continue
+
+        # lines containing ':' aren't intersting to us
+        if line.count(':') != 0 :
+                continue
+
+        # attributes of each function follow the name, indented by a tab
+        if not line.startswith('\t') :
+                m1 = r2.search(line)
+                if m1 :
+                        function = m1.group(1)
+                        arglist_use = m1.group(2)
+                        wrappers[function] = {}
+
+                        # near and far might be reserved words or macros so can't be used as formal parameter names
+                        arglist_use = arglist_use.replace('near','zNear')
+                        arglist_use = arglist_use.replace('far','zFar')
+
+                        wrappers[function]['arglist_use'] = arglist_use
+                        param_count = 0
+        else :
+                m1 = r1.search(line)
+                if m1 :
+                        attribute = m1.group(1)
+                        value = m1.group(2)
+
+                        # make param attributes unique and ordered
+                        if attribute == 'param' :
+                                attribute = 'param' + '%02d' % param_count
+                                param_count += 1
+
+                        wrappers[function][attribute] = value
+
+#
+# now emit code
+#
+
+print '/* Automatically generated by ' + sys.argv[0] + ' DO NOT EDIT */'
+print '/* from ' + specfile + ' and typemap ' + typemapfile + ' */'
+print ''
+
+#
+# if required, emit code for non-lazy function resolving
+#
+
+if preresolve :
+        for w in sorted(wrappers.keys()) :
+                funcname = prefix + w
+                print 'RESOLVE_DECL(PFN' + funcname.upper() + 'PROC);'
+
+        print ''
+        print 'void ' + prefix + 'ResolveExtensionProcs(void)'
+        print '{'
+
+        for w in sorted(wrappers.keys()) :
+                funcname = prefix + w
+                print '  PRERESOLVE(PFN' + funcname.upper() + 'PROC, "' + funcname + '");'
+
+        print '}\n'
+
+#
+# now emit the wrappers
+# for GL 1.0 and 1.1 functions, generate stdcall wrappers which call the function directly
+# for GL 1.2+ functions, generate wrappers which use wglGetProcAddress()
+#
+
+for w in sorted(wrappers.keys()) :
+
+        funcname = prefix + w
+        returntype = wrappers[w]['return']
+        if returntype != 'void' :
+                returntype = typemap[returntype]
+
+        # Avoid generating wrappers which aren't referenced by the dispatch table
+        if dispatchheader and not dispatch.has_key(w) :
+                print '/* No wrapper for ' + funcname + ', not in dispatch table */'
+                continue
+
+        # manufacture arglist
+        # if no param attributes were found, it should be 'void'
+        al = []
+        for k in sorted(wrappers[w].keys()) :
+                if k.startswith('param') :
+                        l = wrappers[w][k].split()
+
+                        # near and far might be reserved words or macros so can't be used as formal parameter names
+                        l[0] = l[0].replace('near','zNear')
+                        l[0] = l[0].replace('far','zFar')
+
+                        if l[2] == 'in' :
+                                if l[3] == 'array' :
+                                        arg = 'const ' + typemap[l[1]] + ' *' + l[0]
+                                else :
+                                        arg = typemap[l[1]] + ' ' + l[0]
+                        elif l[2] == 'out' :
+                                arg = typemap[l[1]] + ' *' + l[0]
+
+                        al.append(arg)
+
+        if len(al) == 0 :
+                arglist = 'void'
+        else:
+                arglist  = ', '.join(al)
+
+        if wrappers[w]['category'].startswith('VERSION_1_0') or wrappers[w]['category'].startswith('VERSION_1_1') :
+                if staticwrappers :
+                        print 'static',
+                print returntype + ' ' + funcname + 'Wrapper(' + arglist + ')'
+                print '{'
+                print '  if (glxWinDebugSettings.enable' + prefix.upper() + 'callTrace) ErrorF("'+ funcname + '\\n");'
+                print '  glWinDirectProcCalls++;'
+                if returntype.lower() == 'void' :
+                        print '  ' +  funcname + '(',
+                else :
+                        print ' /* returntype was ' + returntype.lower() + '*/'
+                        print '  return ' +  funcname + '(',
+
+                if arglist != 'void' :
+                        print wrappers[w]['arglist_use'],
+
+                print ');'
+                print "}\n"
+        else:
+                if staticwrappers :
+                        print 'static',
+                print returntype + ' ' + funcname + 'Wrapper(' + arglist + ')'
+                print '{'
+
+                stringname = funcname
+
+#
+# special case: Windows OpenGL implementations are far more likely to have GL_ARB_window_pos than GL_MESA_window_pos,
+# so arrange for the wrapper to use the ARB strings to find functions...
+#
+
+                m2 = r3.search(funcname)
+                if m2 :
+                        stringname = stringname.replace('MESA','ARB')
+
+#
+# special case: likewise, implementations are more likely to have GL_ARB_vertex_program than GL_NV_vertex_program,
+# especially if they are not NV implementations, so arrange for the wrapper to use ARB strings to find functions
+#
+
+                m3 = r4.search(funcname)
+                if m3 :
+                        stringname = stringname.replace('NV','ARB')
+                m4 = r5.search(funcname)
+                if m4 :
+                        stringname = stringname.replace('NV','ARB')
+
+                pfntypename = 'PFN' + funcname.upper() + 'PROC'
+
+                if returntype.lower() == 'void' :
+                        print '  RESOLVE(' + pfntypename + ', "' + stringname + '");'
+                        print '  if (glxWinDebugSettings.enable' + prefix.upper() + 'callTrace) ErrorF("'+ funcname + '\\n");'
+                        print '  RESOLVED_PROC(' + pfntypename + ')(',
+                else :
+                        print '  RESOLVE_RET(' + pfntypename + ', "' + stringname + '", FALSE);'
+                        print '  if (glxWinDebugSettings.enable' + prefix.upper() + 'callTrace) ErrorF("'+ funcname + '\\n");'
+                        print '  return RESOLVED_PROC(' + pfntypename + ')(',
+
+                if arglist != 'void' :
+                        print wrappers[w]['arglist_use'],
+
+                print ');'
+                print "}\n"
+
+
+# generate function to setup the dispatch table, which sets each
+# dispatch table entry to point to it's wrapper function
+# (assuming we were able to make one)
+
+if dispatchheader :
+        print 'void glWinSetupDispatchTable(void)'
+        print '{'
+        print '  struct _glapi_table *disp = _glapi_get_dispatch();'
+
+        for d in sorted(dispatch.keys()) :
+                if wrappers.has_key(d) :
+                        print '  SET_'+ d + '(disp, ' + prefix + d + 'Wrapper);'
+                else :
+                        print '#warning  No wrapper for ' + prefix + d + ' !'
+
+        print '}'

hw/xwin/glx/glwindows.h

@@ -1,64 +1,58 @@
-#ifdef HAVE_DIX_CONFIG_H
+/*
-#include <dix-config.h>
+ * File: glwindows.h
-#endif
+ * Purpose: Header for GLX implementation using native Windows OpenGL library
+ *
+ * Authors: Alexander Gottwald
+ *          Jon TURNEY
+ *
+ * Copyright (c) Jon TURNEY 2009
+ * Copyright (c) Alexander Gottwald 2004
+ *
+ *
+ * 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.
+ */
+
 
-#include <X11/Xwindows.h>
 #include <GL/gl.h>
-#include <GL/glext.h>
-
-#include <glxserver.h>
-#include <glxext.h>
-
-#include <windowstr.h>
-#include <resource.h>
-#include <GL/glxint.h>
-#include <GL/glxtokens.h>
-#include <scrnintstr.h>
-#include <glxserver.h>
-#include <glxscreens.h>
-#include <glxdrawable.h>
-#include <glxcontext.h>
-#include <glxext.h>
-#include <glxutil.h>
-#include <glxscreens.h>
-#include <GL/internal/glcore.h>
-#include <stdlib.h>
-
 
 typedef struct {
-    unsigned enableDebug : 1;
+    unsigned int enableDebug : 1;
-    unsigned enableTrace : 1;
+    unsigned int enableTrace : 1;
-    unsigned dumpPFD : 1;
+    unsigned int dumpPFD : 1;
-    unsigned dumpHWND : 1;
+    unsigned int dumpHWND : 1;
-    unsigned dumpDC : 1;
+    unsigned int dumpDC : 1;
-} glWinDebugSettingsRec, *glWinDebugSettingsPtr;
+    unsigned int enableGLcallTrace : 1;
-extern glWinDebugSettingsRec glWinDebugSettings;
+    unsigned int enableWGLcallTrace :1;
+} glxWinDebugSettingsRec;
 
-typedef struct {
+extern glxWinDebugSettingsRec glxWinDebugSettings;
-    int num_vis;
-    __GLcontextModes *modes;
-    void **priv;
 
-    /* wrapped screen functions */
+void glWinCallDelta(void);
-    RealizeWindowProcPtr RealizeWindow;
+void glxWinPushNativeProvider(void);
-    UnrealizeWindowProcPtr UnrealizeWindow;
+const GLubyte* glGetStringWrapperNonstatic(GLenum name);
-    CopyWindowProcPtr CopyWindow;
+void glAddSwapHintRectWINWrapperNonstatic(GLint x, GLint y, GLsizei width, GLsizei height);
-} glWinScreenRec;
+void glWinSetupDispatchTable(void);
-
-extern glWinScreenRec glWinScreens[MAXSCREENS];
-
-#define glWinGetScreenPriv(pScreen)  &glWinScreens[pScreen->myNum]
-#define glWinScreenPriv(pScreen) glWinScreenRec *pScreenPriv = glWinGetScreenPriv(pScreen);
 
 #if 1
-#define GLWIN_TRACE() if (glWinDebugSettings.enableTrace) ErrorF("%s:%d: Trace\n", __FUNCTION__, __LINE__ )
+#define GLWIN_TRACE_MSG(msg, args...) if (glxWinDebugSettings.enableTrace) ErrorF(msg " [%s:%d]\n" , ##args , __FUNCTION__, __LINE__ )
-#define GLWIN_TRACE_MSG(msg, args...) if (glWinDebugSettings.enableTrace) ErrorF("%s:%d: " msg, __FUNCTION__, __LINE__, ##args )
+#define GLWIN_DEBUG_MSG(msg, args...) if (glxWinDebugSettings.enableDebug) ErrorF(msg " [%s:%d]\n" , ##args , __FUNCTION__, __LINE__ )
-#define GLWIN_DEBUG_MSG(msg, args...) if (glWinDebugSettings.enableDebug) ErrorF("%s:%d: " msg, __FUNCTION__, __LINE__, ##args )
-#define GLWIN_DEBUG_MSG2(msg, args...) if (glWinDebugSettings.enableDebug) ErrorF(msg, ##args )
 #else
-#define GLWIN_TRACE()
 #define GLWIN_TRACE_MSG(a, ...)
 #define GLWIN_DEBUG_MSG(a, ...)
-#define GLWIN_DEBUG_MSG2(a, ...)
 #endif
-

hw/xwin/glx/glwrap.c

@@ -1,583 +1,148 @@
 /*
- * GLX implementation that uses Win32's OpenGL
+ * File: glwrap.c
- * Wrapper functions for Win32's OpenGL
+ * Purpose: Wrapper functions for Win32 OpenGL functions
  *
  * Authors: Alexander Gottwald
+ *          Jon TURNEY
+ *
+ * Copyright (c) Jon TURNEY 2009
+ * Copyright (c) Alexander Gottwald 2004
+ *
+ *
+ * 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_DIX_CONFIG_H
+// define USE_OPENGL32 makes gl.h declare gl*() function prototypes with stdcall linkage,
-#include <dix-config.h>
+// so our generated wrappers will correctly link with the functions in opengl32.dll
+#define USE_OPENGL32
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
 #endif
 
 #include <X11/Xwindows.h>
 #include <GL/gl.h>
 #include <GL/glext.h>
-#include <glxserver.h>
+#include <glx/glxserver.h>
-#include <glxext.h>
+#include <glx/glxext.h>
+#include <glx/glapi.h>
+#include <glx/dispatch.h>
+#include <glwindows.h>
 
-#define RESOLVE_RET(procname, symbol, retval) \
+static unsigned int glWinIndirectProcCalls = 0;
-    static Bool init = TRUE; \
+static unsigned int glWinDirectProcCalls = 0;
-    static procname proc = NULL; \
+
-    if (init) { \
+void
-        proc = (procname)wglGetProcAddress(symbol); \
+glWinCallDelta(void)
-        init = FALSE; \
+{
+  static unsigned int glWinIndirectProcCallsLast = 0;
+  static unsigned int glWinDirectProcCallsLast = 0;
+  if ((glWinIndirectProcCalls != glWinIndirectProcCallsLast) ||
+      (glWinDirectProcCalls != glWinDirectProcCallsLast))
+    {
+      if (glxWinDebugSettings.enableTrace)
+        {
+          ErrorF("after %d direct and %d indirect GL calls\n",
+                 glWinDirectProcCalls - glWinDirectProcCallsLast,
+                 glWinIndirectProcCalls - glWinIndirectProcCallsLast);
+        }
+      glWinDirectProcCallsLast = glWinDirectProcCalls;
+      glWinIndirectProcCallsLast = glWinIndirectProcCalls;
+    }
+}
+
+static PROC
+glWinResolveHelper(PROC *cache, char *symbol)
+{
+  PROC proc = NULL;
+
+  /* If not yet cached, call wglGetProcAddress */
+  if ((*cache) == NULL)
+    {
+      proc = wglGetProcAddress(symbol);
+      if (proc == NULL)
+        {
+          ErrorF("glwrap: Can't resolve \"%s\"\n", symbol);
+          (*cache) = (PROC)-1;
+        }
+      else
+        {
+          ErrorF("glwrap: Resolved \"%s\"\n", symbol);
+          (*cache) = proc;
+        }
+    }
+  /* Cached wglGetProcAddress failure */
+  else if ((*cache) == (PROC)-1)
+    {
+      proc = 0;
+    }
+  /* Cached wglGetProcAddress result */
+  else
+    {
+      proc = (*cache);
+    }
+
+  return proc;
+}
+
+#define RESOLVE_RET(proctype, symbol, retval) \
+    static PROC cache = NULL; \
+    __stdcall proctype proc = (proctype)glWinResolveHelper(&cache, symbol); \
     if (proc == NULL) { \
-            ErrorF("glwrap: Can't resolve \"%s\"\n", symbol); \
+        __glXErrorCallBack(0); \
-        } else \
-            ErrorF("glwrap: resolved \"%s\"\n", symbol); \
-    } \
-    if (proc == NULL) { \
-        __glXErrorCallBack(NULL, 0); \
         return retval; \
-    }
+    } \
-#define RESOLVE(procname, symbol) RESOLVE_RET(procname, symbol,)
+    glWinIndirectProcCalls++;
 
+#define RESOLVE(proctype, symbol) RESOLVE_RET(proctype, symbol,)
+
+#define RESOLVED_PROC(proctype) proc
 
 /*
- * GL_ARB_imaging
+  Include generated cdecl wrappers for stdcall gl*() functions in opengl32.dll
+
+  OpenGL 1.2 and upward is treated as extensions, function address must
+  found using wglGetProcAddress(), but also stdcall so still need wrappers...
+
+  Include generated dispatch table setup function
 */
 
+#include "generated_gl_wrappers.c"
 
-GLAPI void GLAPIENTRY glColorTable( GLenum target, GLenum internalformat,
+/*
-                                    GLsizei width, GLenum format,
+  Special non-static wrapper for glGetString for debug output
-                                    GLenum type, const GLvoid *table )
+*/
+
+const GLubyte* glGetStringWrapperNonstatic(GLenum name)
 {
-    RESOLVE(PFNGLCOLORTABLEPROC, "glColorTable");
+  return glGetString(name);
-    proc(target, internalformat, width, format, type, table);
-}
-
-GLAPI void GLAPIENTRY glColorSubTable( GLenum target,
-                                       GLsizei start, GLsizei count,
-                                       GLenum format, GLenum type,
-                                       const GLvoid *data )
-{
-    RESOLVE(PFNGLCOLORSUBTABLEPROC, "glColorSubTable");
-    proc(target, start, count, format, type, data);
-}
-
-GLAPI void GLAPIENTRY glColorTableParameteriv(GLenum target, GLenum pname,
-                                              const GLint *params)
-{
-    RESOLVE(PFNGLCOLORTABLEPARAMETERIVPROC, "glColorTableParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glColorTableParameterfv(GLenum target, GLenum pname,
-                                              const GLfloat *params)
-{
-    RESOLVE(PFNGLCOLORTABLEPARAMETERFVPROC, "glColorTableParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glCopyColorSubTable( GLenum target, GLsizei start,
-                                           GLint x, GLint y, GLsizei width )
-{
-    RESOLVE(PFNGLCOPYCOLORSUBTABLEPROC, "glCopyColorSubTable");
-    proc(target, start, x, y, width);
-}
-
-GLAPI void GLAPIENTRY glCopyColorTable( GLenum target, GLenum internalformat,
-                                        GLint x, GLint y, GLsizei width )
-{
-    RESOLVE(PFNGLCOPYCOLORTABLEPROC, "glCopyColorTable");
-    proc(target, internalformat, x, y, width);
-}
-
-
-GLAPI void GLAPIENTRY glGetColorTable( GLenum target, GLenum format,
-                                       GLenum type, GLvoid *table )
-{
-    RESOLVE(PFNGLGETCOLORTABLEPROC, "glGetColorTable");
-    proc(target, format, type, table);
-}
-
-GLAPI void GLAPIENTRY glGetColorTableParameterfv( GLenum target, GLenum pname,
-                                                  GLfloat *params )
-{
-    RESOLVE(PFNGLGETCOLORTABLEPARAMETERFVPROC, "glGetColorTableParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glGetColorTableParameteriv( GLenum target, GLenum pname,
-                                                  GLint *params )
-{
-    RESOLVE(PFNGLGETCOLORTABLEPARAMETERIVPROC, "glGetColorTableParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glBlendEquation( GLenum mode )
-{
-    RESOLVE(PFNGLBLENDEQUATIONPROC, "glBlendEquation");
-    proc(mode);
-}
-
-GLAPI void GLAPIENTRY glBlendColor( GLclampf red, GLclampf green,
-                                    GLclampf blue, GLclampf alpha )
-{
-    RESOLVE(PFNGLBLENDCOLORPROC, "glBlendColor");
-    proc(red, green, blue, alpha);
-}
-
-GLAPI void GLAPIENTRY glHistogram( GLenum target, GLsizei width,
-				   GLenum internalformat, GLboolean sink )
-{
-    RESOLVE(PFNGLHISTOGRAMPROC, "glHistogram");
-    proc(target, width, internalformat, sink);
-}
-
-GLAPI void GLAPIENTRY glResetHistogram( GLenum target )
-{
-    RESOLVE(PFNGLRESETHISTOGRAMPROC, "glResetHistogram");
-    proc(target);
-}
-
-GLAPI void GLAPIENTRY glGetHistogram( GLenum target, GLboolean reset,
-				      GLenum format, GLenum type,
-				      GLvoid *values )
-{
-    RESOLVE(PFNGLGETHISTOGRAMPROC, "glGetHistogram");
-    proc(target, reset, format, type, values);
-};
-
-GLAPI void GLAPIENTRY glGetHistogramParameterfv( GLenum target, GLenum pname,
-						 GLfloat *params )
-{
-    RESOLVE(PFNGLGETHISTOGRAMPARAMETERFVPROC, "glGetHistogramParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glGetHistogramParameteriv( GLenum target, GLenum pname,
-						 GLint *params )
-{
-    RESOLVE(PFNGLGETHISTOGRAMPARAMETERIVPROC, "glGetHistogramParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glMinmax( GLenum target, GLenum internalformat,
-				GLboolean sink )
-{
-    RESOLVE(PFNGLMINMAXPROC, "glMinmax");
-    proc(target, internalformat, sink);
-}
-
-GLAPI void GLAPIENTRY glResetMinmax( GLenum target )
-{
-    RESOLVE(PFNGLRESETMINMAXPROC, "glResetMinmax");
-    proc(target);
-}
-
-GLAPI void GLAPIENTRY glGetMinmax( GLenum target, GLboolean reset,
-                                   GLenum format, GLenum types,
-                                   GLvoid *values )
-{
-    RESOLVE(PFNGLGETMINMAXPROC, "glGetMinmax");
-    proc(target, reset, format, types, values);
-}
-
-GLAPI void GLAPIENTRY glGetMinmaxParameterfv( GLenum target, GLenum pname,
-					      GLfloat *params )
-{
-    RESOLVE(PFNGLGETMINMAXPARAMETERFVPROC, "glGetMinmaxParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glGetMinmaxParameteriv( GLenum target, GLenum pname,
-					      GLint *params )
-{
-    RESOLVE(PFNGLGETMINMAXPARAMETERIVPROC, "glGetMinmaxParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glConvolutionFilter1D( GLenum target,
-	GLenum internalformat, GLsizei width, GLenum format, GLenum type,
-	const GLvoid *image )
-{
-    RESOLVE(PFNGLCONVOLUTIONFILTER1DPROC, "glConvolutionFilter1D");
-    proc(target, internalformat, width, format, type, image);
-}
-
-GLAPI void GLAPIENTRY glConvolutionFilter2D( GLenum target,
-	GLenum internalformat, GLsizei width, GLsizei height, GLenum format,
-	GLenum type, const GLvoid *image )
-{
-    RESOLVE(PFNGLCONVOLUTIONFILTER2DPROC, "glConvolutionFilter2D");
-    proc(target, internalformat, width, height, format, type, image);
-}
-
-GLAPI void GLAPIENTRY glConvolutionParameterf( GLenum target, GLenum pname,
-	GLfloat params )
-{
-    RESOLVE(PFNGLCONVOLUTIONPARAMETERFPROC, "glConvolutionParameterf");
-    proc(target, pname, params); 
-}
-
-GLAPI void GLAPIENTRY glConvolutionParameterfv( GLenum target, GLenum pname,
-	const GLfloat *params )
-{
-    RESOLVE(PFNGLCONVOLUTIONPARAMETERFVPROC, "glConvolutionParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glConvolutionParameteri( GLenum target, GLenum pname,
-	GLint params )
-{
-    RESOLVE(PFNGLCONVOLUTIONPARAMETERIPROC, "glConvolutionParameteri");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glConvolutionParameteriv( GLenum target, GLenum pname,
-	const GLint *params )
-{
-    RESOLVE(PFNGLCONVOLUTIONPARAMETERIVPROC, "glConvolutionParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glCopyConvolutionFilter1D( GLenum target,
-	GLenum internalformat, GLint x, GLint y, GLsizei width )
-{
-    RESOLVE(PFNGLCOPYCONVOLUTIONFILTER1DPROC, "glCopyConvolutionFilter1D");
-    proc(target, internalformat, x, y, width);
-}
-
-GLAPI void GLAPIENTRY glCopyConvolutionFilter2D( GLenum target,
-	GLenum internalformat, GLint x, GLint y, GLsizei width,
-	GLsizei height)
-{
-    RESOLVE(PFNGLCOPYCONVOLUTIONFILTER2DPROC, "glCopyConvolutionFilter2D");
-    proc(target, internalformat, x, y, width, height);
-}
-
-GLAPI void GLAPIENTRY glGetConvolutionFilter( GLenum target, GLenum format,
-	GLenum type, GLvoid *image )
-{
-    RESOLVE(PFNGLGETCONVOLUTIONFILTERPROC, "glGetConvolutionFilter");
-    proc(target, format, type, image);
-}
-
-GLAPI void GLAPIENTRY glGetConvolutionParameterfv( GLenum target, GLenum pname,
-	GLfloat *params )
-{
-    RESOLVE(PFNGLGETCONVOLUTIONPARAMETERFVPROC, "glGetConvolutionParameterfv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glGetConvolutionParameteriv( GLenum target, GLenum pname,
-	GLint *params )
-{
-    RESOLVE(PFNGLGETCONVOLUTIONPARAMETERIVPROC, "glGetConvolutionParameteriv");
-    proc(target, pname, params);
-}
-
-GLAPI void GLAPIENTRY glSeparableFilter2D( GLenum target,
-	GLenum internalformat, GLsizei width, GLsizei height, GLenum format,
-	GLenum type, const GLvoid *row, const GLvoid *column )
-{
-    RESOLVE(PFNGLSEPARABLEFILTER2DPROC, "glSeparableFilter2D");
-    proc(target, internalformat, width, height, format, type, row, column);
-}
-
-GLAPI void GLAPIENTRY glGetSeparableFilter( GLenum target, GLenum format,
-	GLenum type, GLvoid *row, GLvoid *column, GLvoid *span )
-{
-    RESOLVE(PFNGLGETSEPARABLEFILTERPROC, "glGetSeparableFilter");
-    proc(target, format, type, row, column, span);
 }
 
 /*
- * OpenGL 1.2
+  Special non-static wrapper for glAddSwapHintRectWIN for copySubBuffers
 */
 
-GLAPI void GLAPIENTRY glTexImage3D( GLenum target, GLint level,
+typedef void (__stdcall *PFNGLADDSWAPHINTRECTWIN)(GLint x, GLint y, GLsizei width, GLsizei height);
-                                      GLint internalFormat,
+
-                                      GLsizei width, GLsizei height,
+void glAddSwapHintRectWINWrapperNonstatic(GLint x, GLint y, GLsizei width, GLsizei height)
-                                      GLsizei depth, GLint border,
-                                      GLenum format, GLenum type,
-                                      const GLvoid *pixels )
 {
-    RESOLVE(PFNGLTEXIMAGE3DPROC, "glTexImage3D");
+  RESOLVE(PFNGLADDSWAPHINTRECTWIN, "glAddSwapHintRectWIN");
-    proc(target, level, internalFormat, width, height, depth, border, format, type, pixels);
+  proc(x, y, width, height);
 }
 
-GLAPI void GLAPIENTRY glTexSubImage3D( GLenum target, GLint level,
-                                         GLint xoffset, GLint yoffset,
-                                         GLint zoffset, GLsizei width,
-                                         GLsizei height, GLsizei depth,
-                                         GLenum format,
-                                         GLenum type, const GLvoid *pixels)
-{
-    RESOLVE(PFNGLTEXSUBIMAGE3DPROC, "glTexSubImage3D");
-    proc(target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);
-}
-
-GLAPI void GLAPIENTRY glCopyTexSubImage3D( GLenum target, GLint level,
-                                             GLint xoffset, GLint yoffset,
-                                             GLint zoffset, GLint x,
-                                             GLint y, GLsizei width,
-                                             GLsizei height )
-{
-    RESOLVE(PFNGLCOPYTEXSUBIMAGE3DPROC, "glCopyTexSubImage3D");
-    proc(target, level, xoffset, yoffset, zoffset, x, y, width, height);
-}
-
-
-/*
- * 20. GL_EXT_texture_object
- */
-GLAPI void GLAPIENTRY glGenTexturesEXT( GLsizei n, GLuint *textures )
-{
-    glGenTextures(n, textures);
-}
-
-GLAPI void GLAPIENTRY glDeleteTexturesEXT( GLsizei n, const GLuint *textures)
-{
-    glDeleteTextures(n, textures);
-}
-
-GLAPI void GLAPIENTRY glBindTextureEXT( GLenum target, GLuint texture )
-{
-    glBindTexture(target, target);
-}
-
-GLAPI void GLAPIENTRY glPrioritizeTexturesEXT( GLsizei n, const GLuint *textures, const GLclampf *priorities )
-{
-    glPrioritizeTextures(n, textures, priorities);
-}
-
-GLAPI GLboolean GLAPIENTRY glAreTexturesResidentEXT( GLsizei n, const GLuint *textures, GLboolean *residences )
-{
-    return glAreTexturesResident(n, textures, residences);
-}
-
-GLAPI GLboolean GLAPIENTRY glIsTextureEXT( GLuint texture )
-{
-    return glIsTexture(texture); 
-}
-
-/*
- * GL_ARB_multitexture (ARB extension 1 and OpenGL 1.2.1)
- */
-
-GLAPI void GLAPIENTRY glActiveTextureARB(GLenum texture)
-{
-    RESOLVE(PFNGLACTIVETEXTUREARBPROC, "glActiveTextureARB");
-    proc(texture);
-}
-
-GLAPI void GLAPIENTRY glMultiTexCoord1dvARB(GLenum target, const GLdouble *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1DVARBPROC, "glMultiTexCoord1dvARB");
-    proc(target, v);
-}
-
-GLAPI void GLAPIENTRY glMultiTexCoord1fvARB(GLenum target, const GLfloat *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1FVARBPROC, "glMultiTexCoord1fvARB");
-    proc(target, v);
-}
-
-GLAPI void GLAPIENTRY glMultiTexCoord1ivARB(GLenum target, const GLint *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1IVARBPROC, "glMultiTexCoord1ivARB");
-    proc(target, v);
-}
-
-GLAPI void GLAPIENTRY glMultiTexCoord1svARB(GLenum target, const GLshort *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1SVARBPROC, "glMultiTexCoord1svARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord2dvARB(GLenum target, const GLdouble *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD2DVARBPROC, "glMultiTexCoord2dvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord2fvARB(GLenum target, const GLfloat *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD2FVARBPROC, "glMultiTexCoord2fvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord2ivARB(GLenum target, const GLint *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD2IVARBPROC, "glMultiTexCoord2ivARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord2svARB(GLenum target, const GLshort *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1SVARBPROC, "glMultiTexCoord1svARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord3dvARB(GLenum target, const GLdouble *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD3DVARBPROC, "glMultiTexCoord3dvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord3fvARB(GLenum target, const GLfloat *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD3FVARBPROC, "glMultiTexCoord3fvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord3ivARB(GLenum target, const GLint *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD3IVARBPROC, "glMultiTexCoord3ivARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord3svARB(GLenum target, const GLshort *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1SVARBPROC, "glMultiTexCoord1svARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord4dvARB(GLenum target, const GLdouble *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD4DVARBPROC, "glMultiTexCoord4dvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord4fvARB(GLenum target, const GLfloat *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD4FVARBPROC, "glMultiTexCoord4fvARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord4ivARB(GLenum target, const GLint *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD4IVARBPROC, "glMultiTexCoord4ivARB");
-    proc(target, v);
-}
-GLAPI void GLAPIENTRY glMultiTexCoord4svARB(GLenum target, const GLshort *v)
-{
-    RESOLVE(PFNGLMULTITEXCOORD1SVARBPROC, "glMultiTexCoord1svARB");
-    proc(target, v);
-}
-
-
-GLAPI void GLAPIENTRY glActiveStencilFaceEXT(GLenum face)
-{
-    RESOLVE(PFNGLACTIVESTENCILFACEEXTPROC, "glActiveStencilFaceEXT");
-    proc(face);
-}
-
-GLAPI void APIENTRY glPointParameterfARB(GLenum pname, GLfloat param)
-{
-    RESOLVE(PFNGLPOINTPARAMETERFARBPROC, "glPointParameterfARB");
-    proc(pname, param);
-}
-
-GLAPI void APIENTRY glPointParameterfvARB(GLenum pname, const GLfloat *params)
-{
-    RESOLVE(PFNGLPOINTPARAMETERFVARBPROC, "glPointParameterfvARB");
-    proc(pname, params);
-}
-
-
-GLAPI void APIENTRY glWindowPos3fARB(GLfloat x, GLfloat y, GLfloat z)
-{
-    RESOLVE(PFNGLWINDOWPOS3FARBPROC, "glWindowPos3fARB");
-    proc(x, y, z);
-}
-
-GLAPI void APIENTRY glPointParameteri(GLenum pname, GLint param)
-{
-    RESOLVE(PFNGLPOINTPARAMETERIPROC, "glPointParameteri");
-    proc(pname, param);
-}
-
-GLAPI void APIENTRY glPointParameteriv(GLenum pname, const GLint *params)
-{
-    RESOLVE(PFNGLPOINTPARAMETERIVPROC, "glPointParameteriv");
-    proc(pname, params);
-}
-
-GLAPI void APIENTRY glPointParameteriNV(GLenum pname, GLint param)
-{
-    RESOLVE(PFNGLPOINTPARAMETERINVPROC, "glPointParameteriNV");
-    proc(pname, param);
-}
-
-GLAPI void APIENTRY glPointParameterivNV(GLenum pname, const GLint *params)
-{
-    RESOLVE(PFNGLPOINTPARAMETERIVNVPROC, "glPointParameterivNV");
-    proc(pname, params);
-}
-
-GLAPI void APIENTRY glSecondaryColor3bv(const GLbyte *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3BVPROC, "glSecondaryColor3bv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3dv(const GLdouble *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3DVPROC, "glSecondaryColor3dv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3fv(const GLfloat *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3FVPROC, "glSecondaryColor3fv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3iv(const GLint *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3IVPROC, "glSecondaryColor3iv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3sv(const GLshort *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3SVPROC, "glSecondaryColor3sv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3ubv(const GLubyte *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3UBVPROC, "glSecondaryColor3ubv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3uiv(const GLuint *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3UIVPROC, "glSecondaryColor3uiv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColor3usv(const GLushort *v)
-{
-    RESOLVE(PFNGLSECONDARYCOLOR3USVPROC, "glSecondaryColor3usv");
-    proc(v);
-}
-GLAPI void APIENTRY glSecondaryColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer)
-{
-    RESOLVE(PFNGLSECONDARYCOLORPOINTERPROC, "glSecondaryColorPointer");
-    proc(size, type, stride, pointer);
-}
-
-
-GLAPI void APIENTRY glBlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha)
-{
-    RESOLVE(PFNGLBLENDFUNCSEPARATEPROC, "glBlendFuncSeparate");
-    proc(sfactorRGB, dfactorRGB, sfactorAlpha, dfactorAlpha);
-}
-GLAPI void APIENTRY glFogCoordfv(const GLfloat *coord)
-{
-    RESOLVE(PFNGLFOGCOORDFVPROC, "glFogCoordfv");
-    proc(coord);
-}
-GLAPI void APIENTRY glFogCoorddv(const GLdouble *coord)
-{
-    RESOLVE(PFNGLFOGCOORDDVPROC, "glFogCoorddv");
-    proc(coord);
-}
-GLAPI void APIENTRY glFogCoordPointer(GLenum type, GLsizei stride, const GLvoid *pointer)
-{
-    RESOLVE(PFNGLFOGCOORDPOINTERPROC, "glFogCoordPointer");
-    proc(type, stride, pointer);
-}
-
-
-GLAPI void APIENTRY glSampleCoverageARB(GLclampf value, GLboolean invert)
-{
-    RESOLVE(PFNGLSAMPLECOVERAGEARBPROC, "glSampleCoverageARB");
-    proc(value, invert);
-}
-GLAPI void APIENTRY glSampleMaskSGIS(GLclampf value, GLboolean invert)
-{
-    RESOLVE(PFNGLSAMPLEMASKSGISPROC, "glSampleMaskSGIS");
-    proc(value, invert);
-}
-GLAPI void APIENTRY glSamplePatternSGIS(GLenum pattern)
-{
-    RESOLVE(PFNGLSAMPLEPATTERNSGISPROC, "glSamplePatternSGIS");
-    proc(pattern);
-}

hw/xwin/glx/wgl_ext_api.c

@@ -0,0 +1,75 @@
+/*
+ * 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
+
+/*
+ * Include generated cdecl wrappers for stdcall WGL functions
+ *
+ * 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
+ *
+ * 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_wgl_wrappers.c"

hw/xwin/glx/wgl_ext_api.h

@@ -0,0 +1,87 @@
+/*
+ * File: wgl_ext_api.h
+ * 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.
+ */
+
+#ifndef wgl_ext_api_h
+#define wgl_ext_api_h
+
+#include "wglext.h"
+
+void wglResolveExtensionProcs(void);
+
+/*
+  Prototypes for wrapper functions we actually use
+  XXX: should be automatically generated as well
+*/
+
+const char *wglGetExtensionsStringARBWrapper(HDC hdc);
+BOOL wglMakeContextCurrentARBWrapper(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
+HDC wglGetCurrentReadDCARBWrapper(VOID);
+
+BOOL wglGetPixelFormatAttribivARBWrapper(HDC hdc,
+                                          int iPixelFormat,
+                                          int iLayerPlane,
+                                          UINT nAttributes,
+                                          const int *piAttributes,
+                                          int *piValues);
+
+BOOL wglGetPixelFormatAttribfvARBWrapper(HDC hdc,
+                                          int iPixelFormat,
+                                          int iLayerPlane,
+                                          UINT nAttributes,
+                                          const int *piAttributes,
+                                          FLOAT *pfValues);
+
+BOOL wglChoosePixelFormatARBWrapper(HDC hdc,
+                                     const int *piAttribIList,
+                                     const FLOAT *pfAttribFList,
+                                     UINT nMaxFormats,
+                                     int *piFormats,
+                                     UINT *nNumFormats);
+
+HPBUFFERARB wglCreatePbufferARBWrapper(HDC hDC,
+                                       int iPixelFormat,
+                                       int iWidth,
+                                       int iHeight,
+                                       const int *piAttribList);
+
+HDC wglGetPbufferDCARBWrapper(HPBUFFERARB hPbuffer);
+
+int wglReleasePbufferDCARBWrapper(HPBUFFERARB hPbuffer,
+                                  HDC hDC);
+
+BOOL wglDestroyPbufferARBWrapper(HPBUFFERARB hPbuffer);
+
+BOOL wglQueryPbufferARBWrapper(HPBUFFERARB hPbuffer,
+                                int iAttribute,
+                                int *piValue);
+
+BOOL wglSwapIntervalEXTWrapper(int interval);
+
+int wglGetSwapIntervalEXTWrapper(void);
+
+#endif /* wgl_ext_api_h */

hw/xwin/glx/winpriv.c

@@ -17,42 +17,26 @@ winCreateWindowsWindow (WindowPtr pWin);
  * Return size and handles of a window.
  * If pWin is NULL, then the information for the root window is requested.
  */
-extern void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo)
+HWND winGetWindowInfo(WindowPtr pWin)
 {
-    /* Sanity check */
+    winDebug("%s: pWin=%p\n", __FUNCTION__, pWin);
-    if (pWinInfo == NULL)
-        return;
-
-    winDebug("%s:%d pWin=%p\n", __FUNCTION__, __LINE__, pWin);
 
     /* a real window was requested */
     if (pWin != NULL)
     {
-        /* Initialize the size information */
-        RECT rect = {
-            pWin->drawable.x,
-            pWin->drawable.y,
-            pWin->drawable.x + pWin->drawable.width,
-            pWin->drawable.y + pWin->drawable.height
-        }, rect_extends;
         /* Get the window and screen privates */
         ScreenPtr pScreen = pWin->drawable.pScreen;
         winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
         winScreenInfoPtr pScreenInfo = NULL;
-
+        HWND hwnd = NULL;
-        rect_extends = rect;
-        OffsetRect(&rect_extends, -pWin->drawable.x, -pWin->drawable.y);
 
         if (pWinScreen == NULL)
         {
             ErrorF("winGetWindowInfo: screen has no privates\n");
-            return;
+            return NULL;
         }
 
-        pWinInfo->hwnd = pWinScreen->hwndScreen;
+        hwnd = pWinScreen->hwndScreen;
-        pWinInfo->hrgn = NULL;
-        pWinInfo->rect = rect;
-    
 
         pScreenInfo = pWinScreen->pScreenInfo;
 #ifdef XWIN_MULTIWINDOW
@@ -64,28 +48,22 @@ extern void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo)
             if (pWinPriv == NULL)
             {
                 ErrorF("winGetWindowInfo: window has no privates\n");
-                return;
+                return hwnd;
             }
 
             if (pWinPriv->hWnd == NULL)
             {
               winCreateWindowsWindow(pWin);
-            }
+              ErrorF("winGetWindowInfo: forcing window to exist...\n");
-            if (pWinPriv->hWnd != NULL) { 
-                
-                /* copy size and window handle */
-                pWinInfo->rect = rect_extends;
-                pWinInfo->hwnd = pWinPriv->hWnd;
-
-                /* Copy window region */
-                if (pWinInfo->hrgn)
-                    DeleteObject(pWinInfo->hrgn);
-                pWinInfo->hrgn = CreateRectRgn(0,0,0,0);
-                CombineRgn(pWinInfo->hrgn, pWinPriv->hRgn, pWinPriv->hRgn, 
-                        RGN_COPY);
             }
 
-            return;
+            if (pWinPriv->hWnd != NULL)
+              {
+                /* copy window handle */
+                hwnd = pWinPriv->hWnd;
+              }
+
+            return hwnd;
         }
 #endif
 #ifdef XWIN_MULTIWINDOWEXTWM
@@ -97,38 +75,52 @@ extern void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo)
 
             if (pRLWinPriv == NULL) {
                 ErrorF("winGetWindowInfo: window has no privates\n");
-                return;
+                return hwnd;
             }
 
             if (pRLWinPriv->hWnd != NULL)
             {
-                /* copy size and window handle */
+                /* copy window handle */
-                pWinInfo->rect = rect_extends;
+                hwnd = pRLWinPriv->hWnd;
-                pWinInfo->hwnd = pRLWinPriv->hWnd;
             }
-            return;
+            return hwnd;
         }
 #endif
     }
     else
     {
-        RECT rect = {0, 0, 0, 0};
         ScreenPtr pScreen = g_ScreenInfo[0].pScreen;
         winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
 
-        pWinInfo->hwnd = NULL;
-        pWinInfo->hrgn = NULL;
-        pWinInfo->rect = rect;
-        
         if (pWinScreen == NULL)
         {
             ErrorF("winGetWindowInfo: screen has no privates\n");
-            return;
+            return NULL;
         }
 
         ErrorF("winGetWindowInfo: returning root window\n");
 
-        pWinInfo->hwnd = pWinScreen->hwndScreen;
+        return pWinScreen->hwndScreen;
     }
-    return;
+
+    return NULL;
+}
+
+Bool
+winCheckScreenAiglxIsSupported(ScreenPtr pScreen)
+{
+  winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
+  winScreenInfoPtr pScreenInfo = pWinScreen->pScreenInfo;
+
+#ifdef XWIN_MULTIWINDOW
+  if (pScreenInfo->fMultiWindow)
+    return TRUE;
+#endif
+
+#ifdef XWIN_MULTIWINDOWEXTWM
+  if (pScreenInfo->fMWExtWM)
+    return TRUE;
+#endif
+
+  return FALSE;
 }

hw/xwin/glx/winpriv.h

@@ -0,0 +1,11 @@
+/*
+ * Export window information for the Windows-OpenGL GLX implementation.
+ *
+ * Authors: Alexander Gottwald
+ */
+
+#include <X11/Xwindows.h>
+#include <windowstr.h>
+
+HWND winGetWindowInfo(WindowPtr pWin);
+Bool winCheckScreenAiglxIsSupported(ScreenPtr pScreen);

hw/xwin/winglobals.c

@@ -85,7 +85,7 @@ HWND		g_hwndKeyboardFocus = NULL;
 Bool		g_fNoHelpMessageBox = FALSE;
 Bool		g_fSoftwareCursor = FALSE;
 Bool		g_fSilentDupError = FALSE;
-
+Bool            g_fNativeGl = FALSE;
 
 /*
  * Global variables for dynamically loaded libraries and

hw/xwin/winmultiwindowwindow.c

@@ -47,6 +47,7 @@
 extern HICON		g_hIconX;
 extern HICON		g_hSmallIconX;
 extern HWND		g_hDlgDepthChange;
+extern Bool             g_fNativeGl;
 
 /*
  * Prototypes for local functions
@@ -74,7 +75,7 @@ void winInitMultiWindowClass(void)
   {
     /* Setup our window class */
     wcx.cbSize=sizeof(WNDCLASSEX);
-    wcx.style = CS_HREDRAW | CS_VREDRAW;
+    wcx.style = CS_HREDRAW | CS_VREDRAW | (g_fNativeGl ? CS_OWNDC : 0);
     wcx.lpfnWndProc = winTopLevelWindowProc;
     wcx.cbClsExtra = 0;
     wcx.cbWndExtra = 0;

hw/xwin/winpriv.h

@@ -1,15 +0,0 @@
-/*
- * Export window information for the Windows-OpenGL GLX implementation.
- *
- * Authors: Alexander Gottwald
- */
-#include <windows.h>
-
-typedef struct
-{
-    HWND    hwnd;
-    HRGN    hrgn;
-    RECT    rect;
-} winWindowInfoRec, *winWindowInfoPtr;
-
-extern void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo);

hw/xwin/winprocarg.c

@@ -64,6 +64,7 @@ extern Bool			g_fKeyboardHookLL;
 extern Bool			g_fNoHelpMessageBox;                     
 extern Bool			g_fSoftwareCursor;
 extern Bool			g_fSilentDupError;
+extern Bool                     g_fNativeGl;
 
 /* globals required by callback function for monitor information */
 struct GetMonitorInfoData {
@@ -1464,6 +1465,19 @@ ddxProcessArgument (int argc, char *argv[], int i)
       g_fSilentDupError = TRUE;
       return 1;
     }
+
+  if (IS_OPTION("-wgl"))
+    {
+      g_fNativeGl = TRUE;
+      return 1;
+    }
+
+  if (IS_OPTION("-nowgl"))
+    {
+      g_fNativeGl = FALSE;
+      return 1;
+    }
+
   return 0;
 }