Bumped num stages to 4 in preparation for AA clipping

http://codereview.appspot.com/6135046/



git-svn-id: http://skia.googlecode.com/svn/trunk@3783 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index 3e3ff51..c5dd3ec 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -75,26 +75,30 @@
 
 /* These values were generated by the above function */
 const GrVertexLayout gStageTexCoordMasks[] = {
-    0x49,
-    0x92,
-    0x124
+    0x1111,
+    0x2222,
+    0x4444,
+    0x8888,
 };
-
 GR_STATIC_ASSERT(GrDrawState::kNumStages == GR_ARRAY_COUNT(gStageTexCoordMasks));
-const GrVertexLayout gStageMasks[] = {
-    0x249,
-    0x492,
-    0x924
-};
 
+const GrVertexLayout gStageMasks[] = {
+    0x11111,
+    0x22222,
+    0x44444,
+    0x88888,
+};
 GR_STATIC_ASSERT(GrDrawState::kNumStages == GR_ARRAY_COUNT(gStageMasks));
+
 const GrVertexLayout gTexCoordMasks[] = {
-    0x7,
-    0x38,
-    0x1c0,
+    0xf,
+    0xf0,
+    0xf00,
+    0xf000,
 };
 GR_STATIC_ASSERT(GrDrawState::kMaxTexCoords == GR_ARRAY_COUNT(gTexCoordMasks));
 
+
 bool check_layout(GrVertexLayout layout) {
     // can only have 1 or 0 bits set for each stage.
     for (int s = 0; s < GrDrawState::kNumStages; ++s) {
@@ -1291,3 +1295,4 @@
     GrPrintf("Max Render Target Size      : %d\n", fMaxRenderTargetSize);
 }
 
+