Move bounds to GrBatch

src/gpu/GrBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrBatch_DEFINED
 #define GrBatch_DEFINED
 
@@ skipping 20 matching lines @@
  * subclasses complete freedom to decide how / what they can batch.
  *
  * Batches are created when GrContext processes a draw call. Batches of the same  subclass may be
  * merged using combineIfPossible. When two batches merge, one takes on the union of the data
  * and the other is left empty. The merged batch becomes responsible for drawing the data from both
  * the original batches.
  *
  * If there are any possible optimizations which might require knowing more about the full state of
  * the draw, ie whether or not the GrBatch is allowed to tweak alpha for coverage, then this
  * information will be communicated to the GrBatch prior to geometry generation.
- * TODO Batch should own the draw bounds
  */
 
 class GrBatch : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(GrBatch)
     GrBatch() : fClassID(kIllegalBatchClassID), fNumberOfDraws(0) { SkDEBUGCODE(fUsed = false;) }
     virtual ~GrBatch() {}
 
     virtual const char* name() const = 0;
     virtual void getInvariantOutputColor(GrInitInvariantOutput* out) const = 0;
     virtual void getInvariantOutputCoverage(GrInitInvariantOutput* out) const = 0;
 
     /*
      * initBatchTracker is a hook for the some additional overrides / optimization possibilities
      * from the GrXferProcessor.
      */
     virtual void initBatchTracker(const GrPipelineInfo& init) = 0;
 
     bool combineIfPossible(GrBatch* that) {
         if (this->classID() != that->classID()) {
             return false;
         }
 
-        return onCombineIfPossible(that);
+        return this->onCombineIfPossible(that);
     }
 
     virtual bool onCombineIfPossible(GrBatch*) = 0;
 
     virtual void generateGeometry(GrBatchTarget*, const GrPipeline*) = 0;
 
+    const SkRect& bounds() const { return fBounds; }
+
     // TODO this goes away when batches are everywhere
     void setNumberOfDraws(int numberOfDraws) { fNumberOfDraws = numberOfDraws; }
     int numberOfDraws() const { return fNumberOfDraws; }
 
     void* operator new(size_t size);
     void operator delete(void* target);
 
     void* operator new(size_t size, void* placement) {
         return ::operator new(size, placement);
     }
@@ skipping 15 matching lines @@
     SkDEBUGCODE(bool isUsed() const { return fUsed; })
 
 protected:
     template <typename PROC_SUBCLASS> void initClassID() {
          static uint32_t kClassID = GenClassID();
          fClassID = kClassID;
     }
 
     uint32_t fClassID;
 
+    // NOTE, compute some bounds, even if extremely conservative.  Do *NOT* setLargest on the bounds
+    // rect because we outset it for dst copy textures
+    void setBounds(const SkRect& newBounds) { fBounds = newBounds; }
+
+    void joinBounds(const SkRect& otherBounds) {
+        return fBounds.joinPossiblyEmptyRect(otherBounds);
+    }
+
+    SkRect fBounds;
+
 private:
     static uint32_t GenClassID() {
         // fCurrProcessorClassID has been initialized to kIllegalProcessorClassID. The
         // atomic inc returns the old value not the incremented value. So we add
         // 1 to the returned value.
         uint32_t id = static_cast<uint32_t>(sk_atomic_inc(&gCurrBatchClassID)) + 1;
         if (!id) {
             SkFAIL("This should never wrap as it should only be called once for each GrBatch "
                    "subclass.");
         }
         return id;
     }
 
     enum {
         kIllegalBatchClassID = 0,
     };
     static int32_t gCurrBatchClassID;
 
     SkDEBUGCODE(bool fUsed;)
 
     int fNumberOfDraws;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif