xlib: Integrate with the trace pipe driver.

src/gallium/winsys/xlib/SConscript

@@ -9,31 +9,35 @@ if env['platform'] == 'linux' \
         and 'i965simple' in env['drivers'] \
         and not env['dri']:
 
-	env = env.Clone()
+    env = env.Clone()
 
-	env.Append(CPPPATH = [
-		'#/src/mesa',
-		'#/src/mesa/main',
-	])
+    env.Append(CPPPATH = [
+        '#/src/mesa',
+        '#/src/mesa/main',
+    ])
 
-	sources = [
-		'glxapi.c',
-		'fakeglx.c',
-		'xfonts.c',
-		'xm_api.c',
-		'xm_winsys.c',
-		'xm_winsys_aub.c',
-		'brw_aub.c',
-	]
-		
-	drivers = [
-		softpipe,
-		i965simple
-	]
+    sources = [
+        'glxapi.c',
+        'fakeglx.c',
+        'xfonts.c',
+        'xm_api.c',
+        'xm_winsys.c',
+        'xm_winsys_aub.c',
+        'brw_aub.c',
+    ]
+        
+    drivers = [
+        softpipe,
+        i965simple,
+    ]
+    
+    if 'trace' in env['drivers']:
+        env.Append(CPPDEFINES = 'GALLIUM_TRACE')
+        drivers += [trace]
 
-	# TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
-	env.SharedLibrary(
-		target ='GL',
-		source = sources,
-		LIBS = glapi + mesa + drivers + auxiliaries + env['LIBS'],
-	)
+    # TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
+    env.SharedLibrary(
+        target ='GL',
+        source = sources,
+        LIBS = glapi + mesa + drivers + auxiliaries + env['LIBS'],
+    )

src/gallium/winsys/xlib/xm_winsys.c

@@ -54,6 +54,11 @@
 #define TILE_SIZE 32  /* avoid compilation errors */
 #endif
 
+#ifdef GALLIUM_TRACE
+#include "trace/tr_screen.h"
+#include "trace/tr_context.h"
+#endif
+
 #include "xm_winsys_aub.h"
 
 
@@ -674,7 +679,15 @@ xmesa_create_pipe_context(XMesaContext xmesa, uint pixelformat)
    {
       struct pipe_screen *screen = softpipe_create_screen(pws);
 
+#ifdef GALLIUM_TRACE
+      screen = trace_screen_create(screen);
+#endif
+      
       pipe = softpipe_create(screen, pws, NULL);
+
+#ifdef GALLIUM_TRACE
+      pipe = trace_context_create(pipe);
+#endif
    }
 
    if (pipe)