Add SkSTArray, hide stack storage cons in SkTArray, unify SkTArray init logic

Review URL: http://codereview.appspot.com/5127044/



git-svn-id: http://skia.googlecode.com/svn/trunk@2342 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrAAHairLinePathRenderer.cpp b/gpu/src/GrAAHairLinePathRenderer.cpp
index 32a477b..6c136e2 100644
--- a/gpu/src/GrAAHairLinePathRenderer.cpp
+++ b/gpu/src/GrAAHairLinePathRenderer.cpp
@@ -133,6 +133,7 @@
 namespace {
 
 typedef SkTArray<SkPoint, true> PtArray;
+#define PREALLOC_PTARRAY(N) SkSTArray<(N),SkPoint, true>
 typedef SkTArray<int, true> IntArray;
 
 /**
@@ -344,8 +345,7 @@
                 bounds.outset(SK_Scalar1, SK_Scalar1);
                 bounds.roundOut(&ibounds);
                 if (SkIRect::Intersects(clip, ibounds)) {
-                    SkPoint stackStorage[32];
-                    PtArray q((void*)stackStorage, 32);
+                    PREALLOC_PTARRAY(32) q;
                     // in perspective have to do conversion in src space
                     if (persp) {
                         SkScalar tolScale = 
@@ -629,10 +629,8 @@
 
     GrMatrix viewM = fTarget->getViewMatrix();
 
-    SkAlignedSTStorage<128, GrPoint> lineStorage;
-    SkAlignedSTStorage<128, GrPoint> quadStorage;
-    PtArray lines(&lineStorage);
-    PtArray quads(&quadStorage);
+    PREALLOC_PTARRAY(128) lines;
+    PREALLOC_PTARRAY(128) quads;
     IntArray qSubdivs;
     fQuadCnt = generate_lines_and_quads(*fPath, viewM, fTranslate, clip,
                                         &lines, &quads, &qSubdivs);
diff --git a/gpu/src/GrClip.cpp b/gpu/src/GrClip.cpp
index afa143a..a02d9f4 100644
--- a/gpu/src/GrClip.cpp
+++ b/gpu/src/GrClip.cpp
@@ -10,30 +10,25 @@
 
 #include "GrClip.h"
 
-GrClip::GrClip()
-    : fList(&fListStorage) {
+GrClip::GrClip() {
     fConservativeBounds.setEmpty();
     fConservativeBoundsValid = true;
 }
 
-GrClip::GrClip(const GrClip& src)
-    : fList(&fListStorage) {
+GrClip::GrClip(const GrClip& src) {
     *this = src;
 }
 
-GrClip::GrClip(const GrIRect& rect)
-    : fList(&fListStorage) {
+GrClip::GrClip(const GrIRect& rect) {
     this->setFromIRect(rect);
 }
 
-GrClip::GrClip(const GrRect& rect)
-    : fList(&fListStorage) {
+GrClip::GrClip(const GrRect& rect) {
     this->setFromRect(rect);
 }
 
 GrClip::GrClip(GrClipIterator* iter, GrScalar tx, GrScalar ty,
-               const GrRect* bounds)
-    : fList(&fListStorage) {
+               const GrRect* bounds) {
     this->setFromIterator(iter, tx, ty, bounds);
 }
 
diff --git a/gpu/src/GrDrawTarget.cpp b/gpu/src/GrDrawTarget.cpp
index 59661d8..51e6fdd 100644
--- a/gpu/src/GrDrawTarget.cpp
+++ b/gpu/src/GrDrawTarget.cpp
@@ -329,8 +329,7 @@
 #define DEBUG_INVAL_BUFFER 0xdeadcafe
 #define DEBUG_INVAL_START_IDX -1
 
-GrDrawTarget::GrDrawTarget() 
-: fGeoSrcStateStack(&fGeoSrcStateStackStorage) {
+GrDrawTarget::GrDrawTarget() {
 #if GR_DEBUG
     VertexLayoutUnitTest();
 #endif
diff --git a/gpu/src/GrDrawTarget.h b/gpu/src/GrDrawTarget.h
index f1c98e8..81d0b2b 100644
--- a/gpu/src/GrDrawTarget.h
+++ b/gpu/src/GrDrawTarget.h
@@ -1376,10 +1376,8 @@
     enum {
         kPreallocGeoSrcStateStackCnt = 4,
     };
-    SkAlignedSTStorage<kPreallocGeoSrcStateStackCnt, 
-                        GeometrySrcState> 
-                                     fGeoSrcStateStackStorage;
-    SkTArray<GeometrySrcState, true> fGeoSrcStateStack;
+    SkSTArray<kPreallocGeoSrcStateStackCnt, 
+              GeometrySrcState, true>           fGeoSrcStateStack;
     
 };
 
diff --git a/gpu/src/GrGpu.cpp b/gpu/src/GrGpu.cpp
index 91e659d..7b98ffa 100644
--- a/gpu/src/GrGpu.cpp
+++ b/gpu/src/GrGpu.cpp
@@ -36,7 +36,6 @@
     , fIndexPool(NULL)
     , fVertexPoolUseCnt(0)
     , fIndexPoolUseCnt(0)
-    , fGeomPoolStateStack(&fGeoSrcStateStackStorage)
     , fQuadIndexBuffer(NULL)
     , fUnitSquareVertexBuffer(NULL)
     , fPathRendererChain(NULL)
diff --git a/gpu/src/GrGpu.h b/gpu/src/GrGpu.h
index 9ecb4b0..3193a56 100644
--- a/gpu/src/GrGpu.h
+++ b/gpu/src/GrGpu.h
@@ -374,9 +374,8 @@
     enum {
         kPreallocGeomPoolStateStackCnt = 4,
     };
-    SkAlignedSTStorage<kPreallocGeomPoolStateStackCnt, 
-                       GeometryPoolState>           fGeoSrcStateStackStorage;
-    SkTArray<GeometryPoolState, true>               fGeomPoolStateStack;
+    SkSTArray<kPreallocGeomPoolStateStackCnt,
+              GeometryPoolState, true>              fGeomPoolStateStack;
     
     mutable GrIndexBuffer*      fQuadIndexBuffer; // mutable so it can be
                                                   // created on-demand
diff --git a/gpu/src/GrInOrderDrawBuffer.cpp b/gpu/src/GrInOrderDrawBuffer.cpp
index 9519655..3d78da3 100644
--- a/gpu/src/GrInOrderDrawBuffer.cpp
+++ b/gpu/src/GrInOrderDrawBuffer.cpp
@@ -30,8 +30,7 @@
     , fCurrQuad(0)
 
     , fVertexPool(*vertexPool)
-    , fIndexPool(*indexPool)
-    , fGeoPoolStateStack(&fGeoStackStorage) {
+    , fIndexPool(*indexPool) {
 
     fCaps = gpu->getCaps();
 
diff --git a/gpu/src/GrInOrderDrawBuffer.h b/gpu/src/GrInOrderDrawBuffer.h
index f0b5c9e..122be53 100644
--- a/gpu/src/GrInOrderDrawBuffer.h
+++ b/gpu/src/GrInOrderDrawBuffer.h
@@ -161,6 +161,15 @@
     GrVertexBufferAllocPool&        fVertexPool;
 
     GrIndexBufferAllocPool&         fIndexPool;
+
+    enum {
+        kDrawPreallocCnt         = 8,
+        kStatePreallocCnt        = 8,
+        kClipPreallocCnt         = 8,
+        kClearPreallocCnt        = 4,
+        kGeoPoolStatePreAllocCnt = 4,
+    };
+
     struct GeometryPoolState {
         const GrVertexBuffer*           fPoolVertexBuffer;
         int                             fPoolStartVertex;
@@ -172,23 +181,12 @@
         size_t                          fUsedPoolVertexBytes;
         size_t                          fUsedPoolIndexBytes;
     };
-    SkTArray<GeometryPoolState> fGeoPoolStateStack;
-
-    
-    enum {
-        kDrawPreallocCnt         = 8,
-        kStatePreallocCnt        = 8,
-        kClipPreallocCnt         = 8,
-        kClearPreallocCnt        = 4,
-        kGeoPoolStatePreAllocCnt = 4,
-    };
+    SkSTArray<kGeoPoolStatePreAllocCnt, GeometryPoolState> fGeoPoolStateStack;
 
     SkAlignedSTStorage<kDrawPreallocCnt, Draw>              fDrawStorage;
     SkAlignedSTStorage<kStatePreallocCnt, SavedDrawState>   fStateStorage;
     SkAlignedSTStorage<kClipPreallocCnt, GrClip>            fClipStorage;
     SkAlignedSTStorage<kClearPreallocCnt, Clear>            fClearStorage;
-    SkAlignedSTStorage<kGeoPoolStatePreAllocCnt, 
-                        GeometryPoolState>                  fGeoStackStorage;
 
     typedef GrDrawTarget INHERITED;
 };
diff --git a/gpu/src/GrPathRendererChain.cpp b/gpu/src/GrPathRendererChain.cpp
index 87ebe10..7a064e8 100644
--- a/gpu/src/GrPathRendererChain.cpp
+++ b/gpu/src/GrPathRendererChain.cpp
@@ -16,8 +16,7 @@
 GrPathRendererChain::GrPathRendererChain(GrContext* context, UsageFlags flags)
     : fInit(false)
     , fOwner(context)
-    , fFlags(flags)
-    , fChain(fStorage.get(), kPreAllocCount) {
+    , fFlags(flags) {
     fInit = false;
 }
     
diff --git a/gpu/src/GrPathRendererChain.h b/gpu/src/GrPathRendererChain.h
index 24abda4..5719484 100644
--- a/gpu/src/GrPathRendererChain.h
+++ b/gpu/src/GrPathRendererChain.h
@@ -55,8 +55,7 @@
     bool fInit;
     GrContext*                                          fOwner;
     UsageFlags                                          fFlags;
-    SkAlignedSTStorage<kPreAllocCount, GrPathRenderer*> fStorage;
-    SkTArray<GrPathRenderer*, true>                     fChain;
+    SkSTArray<kPreAllocCount, GrPathRenderer*, true>    fChain;
 };
 
 GR_MAKE_BITFIELD_OPS(GrPathRendererChain::UsageFlags)