Revert of Port suitableForGpuRasterization to SkRecord

src/core/SkPicture.cpp

Index: src/core/SkPicture.cpp
diff --git a/src/core/SkPicture.cpp b/src/core/SkPicture.cpp
index 1fc2bb32c88109c6e54501246f68c9ce58076d94..8825123336c14d472217c4934b0cf2cbe4bdbf04 100644
--- a/src/core/SkPicture.cpp
+++ b/src/core/SkPicture.cpp
@@ -19,13 +19,11 @@
 #include "SkChunkAlloc.h"
 #include "SkDrawPictureCallback.h"
 #include "SkPaintPriv.h"
-#include "SkPathEffect.h"
 #include "SkPicture.h"
+#include "SkRecordAnalysis.h"
 #include "SkRegion.h"
-#include "SkShader.h"
 #include "SkStream.h"
 #include "SkTDArray.h"
-#include "SkTLogic.h"
 #include "SkTSearch.h"
 #include "SkTime.h"
 
@@ -48,180 +46,12 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-namespace {
-
-// Some commands have a paint, some have an optional paint.  Either way, get back a pointer.
-static const SkPaint* AsPtr(const SkPaint& p) { return &p; }
-static const SkPaint* AsPtr(const SkRecords::Optional<SkPaint>& p) { return p; }
-
-/** SkRecords visitor to determine whether an instance may require an
-    "external" bitmap to rasterize. May return false positives.
-    Does not return true for bitmap text.
-
-    Expected use is to determine whether images need to be decoded before
-    rasterizing a particular SkRecord.
- */
-struct BitmapTester {
-    // Helpers.  These create HasMember_bitmap and HasMember_paint.
-    SK_CREATE_MEMBER_DETECTOR(bitmap);
-    SK_CREATE_MEMBER_DETECTOR(paint);
-
-
-    // Main entry for visitor:
-    // If the command has a bitmap directly, return true.
-    // If the command has a paint and the paint has a bitmap, return true.
-    // Otherwise, return false.
-    template <typename T>
-    bool operator()(const T& r) { return CheckBitmap(r); }
-
-
-    // If the command has a bitmap, of course we're going to play back bitmaps.
-    template <typename T>
-    static SK_WHEN(HasMember_bitmap<T>, bool) CheckBitmap(const T&) { return true; }
-
-    // If not, look for one in its paint (if it has a paint).
-    template <typename T>
-    static SK_WHEN(!HasMember_bitmap<T>, bool) CheckBitmap(const T& r) { return CheckPaint(r); }
-
-    // If we have a paint, dig down into the effects looking for a bitmap.
-    template <typename T>
-    static SK_WHEN(HasMember_paint<T>, bool) CheckPaint(const T& r) {
-        const SkPaint* paint = AsPtr(r.paint);
-        if (paint) {
-            const SkShader* shader = paint->getShader();
-            if (shader &&
-                shader->asABitmap(NULL, NULL, NULL) == SkShader::kDefault_BitmapType) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    // If we don't have a paint, that non-paint has no bitmap.
-    template <typename T>
-    static SK_WHEN(!HasMember_paint<T>, bool) CheckPaint(const T&) { return false; }
-};
-
-bool WillPlaybackBitmaps(const SkRecord& record) {
-    BitmapTester tester;
-    for (unsigned i = 0; i < record.count(); i++) {
-        if (record.visit<bool>(i, tester)) {
-            return true;
-        }
-    }
-    return false;
-}
-
-/** SkRecords visitor to determine heuristically whether or not a SkPicture
-    will be performant when rasterized on the GPU.
- */
-struct PathCounter {
-    SK_CREATE_MEMBER_DETECTOR(paint);
-
-    PathCounter()
-        : numPaintWithPathEffectUses (0)
-        , numFastPathDashEffects (0)
-        , numAAConcavePaths (0)
-        , numAAHairlineConcavePaths (0) {
-    }
-
-    void checkPaint(const SkPaint* paint) {
-        if (paint && paint->getPathEffect()) {
-            numPaintWithPathEffectUses++;
-        }
-    }
-
-    void operator()(const SkRecords::DrawPoints& op) {
-        this->checkPaint(&op.paint);
-        const SkPathEffect* effect = op.paint.getPathEffect();
-        if (effect) {
-            SkPathEffect::DashInfo info;
-            SkPathEffect::DashType dashType = effect->asADash(&info);
-            if (2 == op.count && SkPaint::kRound_Cap != op.paint.getStrokeCap() &&
-                SkPathEffect::kDash_DashType == dashType && 2 == info.fCount) {
-                numFastPathDashEffects++;
-            }
-        }
-    }
-
-    void operator()(const SkRecords::DrawPath& op) {
-        this->checkPaint(&op.paint);
-        if (op.paint.isAntiAlias() && !op.path.isConvex()) {
-            numAAConcavePaths++;
-
-            if (SkPaint::kStroke_Style == op.paint.getStyle() &&
-                0 == op.paint.getStrokeWidth()) {
-                numAAHairlineConcavePaths++;
-            }
-        }
-    }
-
-    template <typename T>
-    SK_WHEN(HasMember_paint<T>, void) operator()(const T& op) {
-        this->checkPaint(AsPtr(op.paint));
-    }
-
-    template <typename T>
-    SK_WHEN(!HasMember_paint<T>, void) operator()(const T& op) { /* do nothing */ }
-
-
-    int numPaintWithPathEffectUses;
-    int numFastPathDashEffects;
-    int numAAConcavePaths;
-    int numAAHairlineConcavePaths;
-};
-
-bool SuitableForGpuRasterization(const SkRecord& record,
-                                 const char** reason = NULL,
-                                 int sampleCount = 0) {
-    PathCounter counter;
-    for (unsigned i = 0; i < record.count(); i++) {
-        record.visit<void>(i, counter);
-    }
-
-    // TODO: the heuristic used here needs to be refined
-    static const int kNumPaintWithPathEffectsUsesTol = 1;
-    static const int kNumAAConcavePathsTol = 5;
-
-    int numNonDashedPathEffects = counter.numPaintWithPathEffectUses -
-                                  counter.numFastPathDashEffects;
-    bool suitableForDash = (0 == counter.numPaintWithPathEffectUses) ||
-                           (numNonDashedPathEffects < kNumPaintWithPathEffectsUsesTol
-                               && 0 == sampleCount);
-
-    bool ret = suitableForDash &&
-               (counter.numAAConcavePaths - counter.numAAHairlineConcavePaths)
-                   < kNumAAConcavePathsTol;
-
-    if (!ret && NULL != reason) {
-        if (!suitableForDash) {
-            if (0 != sampleCount) {
-                *reason = "Can't use multisample on dash effect.";
-            } else {
-                *reason = "Too many non dashed path effects.";
-            }
-        } else if ((counter.numAAConcavePaths - counter.numAAHairlineConcavePaths)
-                    >= kNumAAConcavePathsTol)
-            *reason = "Too many anti-aliased concave paths.";
-        else
-            *reason = "Unknown reason for GPU unsuitability.";
-    }
-    return ret;
-}
-
-} // namespace
-
-SkPicture::Analysis::Analysis(const SkRecord& record)
-    : fWillPlaybackBitmaps (WillPlaybackBitmaps(record))
-    , fSuitableForGpuRasterization (SuitableForGpuRasterization(record)) { }
-
-///////////////////////////////////////////////////////////////////////////////
-
 #ifdef SK_SUPPORT_LEGACY_DEFAULT_PICTURE_CTOR
 // fRecord OK
 SkPicture::SkPicture()
     : fWidth(0)
-    , fHeight(0) {
+    , fHeight(0)
+    , fRecordWillPlayBackBitmaps(false) {
     this->needsNewGenID();
 }
 #endif
@@ -231,7 +61,8 @@
                      const SkPictureRecord& record,
                      bool deepCopyOps)
     : fWidth(width)
-    , fHeight(height) {
+    , fHeight(height)
+    , fRecordWillPlayBackBitmaps(false) {
     this->needsNewGenID();
 
     SkPictInfo info;
@@ -306,6 +137,7 @@
     }
 
     SkPicture* clone = SkNEW_ARGS(SkPicture, (newData.detach(), fWidth, fHeight));
+    clone->fRecordWillPlayBackBitmaps = fRecordWillPlayBackBitmaps;
     clone->fUniqueID = this->uniqueID(); // need to call method to ensure != 0
 
     return clone;
@@ -438,7 +270,8 @@
 SkPicture::SkPicture(SkPictureData* data, int width, int height)
     : fData(data)
     , fWidth(width)
-    , fHeight(height) {
+    , fHeight(height)
+    , fRecordWillPlayBackBitmaps(false) {
     this->needsNewGenID();
 }
 
@@ -553,11 +386,8 @@
 }
 
 #if SK_SUPPORT_GPU
-// fRecord OK
+// fRecord TODO
 bool SkPicture::suitableForGpuRasterization(GrContext* context, const char **reason) const {
-    if (fRecord.get()) {
-        return fAnalysis.fSuitableForGpuRasterization;
-    }
     if (NULL == fData.get()) {
         if (NULL != reason) {
             *reason = "Missing internal data.";
@@ -577,7 +407,7 @@
 // fRecord OK
 bool SkPicture::willPlayBackBitmaps() const {
     if (fRecord.get()) {
-        return fAnalysis.fWillPlaybackBitmaps;
+        return fRecordWillPlayBackBitmaps;
     }
     if (!fData.get()) {
         return false;
@@ -611,7 +441,7 @@
     , fHeight(height)
     , fRecord(record)
     , fBBH(SkSafeRef(bbh))
-    , fAnalysis(*record) {
+    , fRecordWillPlayBackBitmaps(SkRecordWillPlaybackBitmaps(*record)) {
     // TODO: delay as much of this work until just before first playback?
     if (fBBH.get()) {
         SkRecordFillBounds(*record, fBBH.get());