Reworks r1770 so that users who have replaced SkUserConfig don't have to

make any changes to continue compiling successfully.



git-svn-id: http://skia.googlecode.com/svn/trunk@1779 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 54 insertions, 0 deletions

diff --git a/include/core/SkTrace.h b/include/core/SkTrace.h
new file mode 100644
index 0000000000..f43d1351ad
--- /dev/null
+++ b/include/core/SkTrace.h
@@ -0,0 +1,54 @@
+/*
+    Copyright 2011 Google Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+#ifndef SkTrace_DEFINED
+#define SkTrace_DEFINED
+
+#ifdef SK_USER_TRACE_INCLUDE_FILE
+
+/* If your system embeds skia and has complex event logging, in
+   src/config/SkUserConfig.h:
+     - define the three SK_TRACE_EVENT macros to map to your system's
+       equivalents,
+     - define the name of the include file in SK_USER_TRACE_INCLUDE_FILE
+   A trivial example is given in src/utils/SkDebugTrace.h.
+
+   All arguments are const char*. Skia typically passes the name of
+   the object and function (and sometimes region of interest within
+   the function) separated by double colons for 'event'.
+
+   SK_TRACE_EVENT1 and SK_TRACE_EVENT2 take one or two arbitrary
+   name-value pairs that you also want to log. SkStringPrintf() is useful
+   for formatting these values.
+
+   For example:
+    SK_TRACE_EVENT0("GrContext::createAndLockTexture");
+    SK_TRACE_EVENT1("GrDefaultPathRenderer::onDrawPath::renderPasses",
+                    "verts", SkStringPrintf("%i", vert - base).c_str());
+*/
+
+    #include SK_USER_TRACE_INCLUDE_FILE
+
+#else
+
+    #define SK_TRACE_EVENT0(event)
+    #define SK_TRACE_EVENT1(event, name1, value1)
+    #define SK_TRACE_EVENT2(event, name1, value1, name2, value2)
+
+#endif
+
+#endif
+
+