GrCopySurfaceBatch

src/gpu/batches/GrCopySurfaceBatch.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 GrCopySurfaceBatch_DEFINED
+#define GrCopySurfaceBatch_DEFINED
+
+#include "GrBatch.h"
+#include "GrBatchFlushState.h"
+#include "GrGpu.h"
+#include "GrRenderTarget.h"
+
+class GrCopySurfaceBatch final : public GrBatch {
+public:
+    static GrBatch* Create(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
+                           const SkIPoint& dstPoint);
+
+    const char* name() const override { return "CopySurface"; }
+
+    uint32_t renderTargetUniqueID() const override {
+        GrRenderTarget* rt = fDst.get()->asRenderTarget();
+        return rt ? rt->getUniqueID() : 0;
+    }
+
+    SkString dumpInfo() const override {
+        SkString string;
+        string.printf("SRC: 0x%p, DST: 0x%p, SRECT: [L: %d, T: %d, R: %d, B: %d], "
+                      "DPT:[X: %d, Y: %d]",
+                      fDst.get(), fSrc.get(), fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight,
+                      fSrcRect.fBottom, fDstPoint.fX, fDstPoint.fY);
+        return string;
+    }
+
+private:
+    GrCopySurfaceBatch(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
+                       const SkIPoint& dstPoint)
+        : fDst(dst)
+        , fSrc(src)
+        , fSrcRect(srcRect)
+        , fDstPoint(dstPoint) {
+        this->initClassID<GrCopySurfaceBatch>();        
+        fBounds = SkRect::MakeXYWH(SkIntToScalar(dstPoint.fX), SkIntToScalar(dstPoint.fY),
+                                   SkIntToScalar(srcRect.width()), SkIntToScalar(srcRect.height()));
+    }
+
+    bool onCombineIfPossible(GrBatch* that, const GrCaps& caps) override { return false; }
+
+    void onPrepare(GrBatchFlushState*) override {}
+
+    void onDraw(GrBatchFlushState* state) override {
+        state->gpu()->copySurface(fDst.get(), fSrc.get(), fSrcRect, fDstPoint);
+    }
+
+    GrPendingIOResource<GrSurface, kWrite_GrIOType> fDst;
+    GrPendingIOResource<GrSurface, kRead_GrIOType>  fSrc;
+    SkIRect                                         fSrcRect;
+    SkIPoint                                        fDstPoint;
+};
+
+#endif