Move GrNonAAFillRectPerspectiveBatch to its own file

src/gpu/batches/GrNonAAFillRectBatch.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrNonAAFillRectBatch.h"
 
 #include "GrBatchFlushState.h"
 #include "GrColor.h"
 #include "GrDefaultGeoProcFactory.h"
 #include "GrPrimitiveProcessor.h"
 #include "GrResourceProvider.h"
 #include "GrQuad.h"
 #include "GrVertexBatch.h"
 
 static const int kVertsPerInstance = 4;
 static const int kIndicesPerInstance = 6;
 
 /** We always use per-vertex colors so that rects can be batched across color changes. Sometimes
     we  have explicit local coords and sometimes not. We *could* always provide explicit local
     coords and just duplicate the positions when the caller hasn't provided a local coord rect,
     but we haven't seen a use case which frequently switches between local rect and no local
     rect draws.
 
     The vertex attrib order is always pos, color, [local coords].
  */
-static sk_sp<GrGeometryProcessor> make_persp_gp(const SkMatrix& viewMatrix,
-                                                bool readsCoverage,
-                                                bool hasExplicitLocalCoords,
-                                                const SkMatrix* localMatrix) {
-    SkASSERT(viewMatrix.hasPerspective() || (localMatrix && localMatrix->hasPerspective()));
-
-    using namespace GrDefaultGeoProcFactory;
-    Color color(Color::kAttribute_Type);
-    Coverage coverage(readsCoverage ? Coverage::kSolid_Type : Coverage::kNone_Type);
-
-    // If we have perspective on the viewMatrix then we won't map on the CPU, nor will we map
-    // the local rect on the cpu (in case the localMatrix also has perspective).
-    // Otherwise, if we have a local rect, then we apply the localMatrix directly to the localRect
-    // to generate vertex local coords
-    if (viewMatrix.hasPerspective()) {
-        LocalCoords localCoords(hasExplicitLocalCoords ? LocalCoords::kHasExplicit_Type :
-                                                         LocalCoords::kUsePosition_Type,
-                                localMatrix);
-        return GrDefaultGeoProcFactory::Make(color, coverage, localCoords, viewMatrix);
-    } else if (hasExplicitLocalCoords) {
-        LocalCoords localCoords(LocalCoords::kHasExplicit_Type, localMatrix);
-        return GrDefaultGeoProcFactory::Make(color, coverage, localCoords, SkMatrix::I());
-    } else {
-        LocalCoords localCoords(LocalCoords::kUsePosition_Type, localMatrix);
-        return GrDefaultGeoProcFactory::MakeForDeviceSpace(color, coverage, localCoords,
-                                                           viewMatrix);
-    }
-}
-
 static sk_sp<GrGeometryProcessor> make_gp(bool readsCoverage) {
     using namespace GrDefaultGeoProcFactory;
     Color color(Color::kAttribute_Type);
     Coverage coverage(readsCoverage ? Coverage::kSolid_Type : Coverage::kNone_Type);
 
     LocalCoords localCoords(LocalCoords::kHasExplicit_Type);
     return GrDefaultGeoProcFactory::Make(color, coverage, localCoords, SkMatrix::I());
 }
 
 static void tesselate(intptr_t vertices,
@@ skipping 141 matching lines @@
         SkRect fRect;
         GrQuad fLocalQuad;
     };
 
     GrXPOverridesForBatch fOverrides;
     SkSTArray<1, RectInfo, true> fRects;
 
     typedef GrVertexBatch INHERITED;
 };
 
-// We handle perspective in the local matrix or viewmatrix with special batches
-class NonAAFillRectPerspectiveBatch : public GrVertexBatch {
-public:
-    DEFINE_BATCH_CLASS_ID
-
-    NonAAFillRectPerspectiveBatch(GrColor color, const SkMatrix& viewMatrix, const SkRect& rect,
-                                  const SkRect* localRect, const SkMatrix* localMatrix)
-            : INHERITED(ClassID())
-            , fViewMatrix(viewMatrix) {
-        SkASSERT(viewMatrix.hasPerspective() || (localMatrix &&
-                                                 localMatrix->hasPerspective()));
-        RectInfo& info = fRects.push_back();
-        info.fColor = color;
-        info.fRect = rect;
-        fHasLocalRect = SkToBool(localRect);
-        fHasLocalMatrix = SkToBool(localMatrix);
-        if (fHasLocalMatrix) {
-            fLocalMatrix = *localMatrix;
-        }
-        if (fHasLocalRect) {
-            info.fLocalRect = *localRect;
-        }
-        viewMatrix.mapRect(&fBounds, rect);
-    }
-
-    const char* name() const override { return "NonAAFillRectPerspectiveBatch"; }
-
-    SkString dumpInfo() const override {
-        SkString str;
-        str.appendf("# batched: %d\n", fRects.count());
-        for (int i = 0; i < fRects.count(); ++i) {
-            const RectInfo& geo = fRects[0];
-            str.appendf("%d: Color: 0x%08x, Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f]\n",
-                        i, geo.fColor,
-                        geo.fRect.fLeft, geo.fRect.fTop, geo.fRect.fRight, geo.fRect.fBottom);
-        }
-        str.append(INHERITED::dumpInfo());
-        return str;
-    }
-
-    void computePipelineOptimizations(GrInitInvariantOutput* color,
-                                      GrInitInvariantOutput* coverage,
-                                      GrBatchToXPOverrides* overrides) const override {
-        // When this is called on a batch, there is only one geometry bundle
-        color->setKnownFourComponents(fRects[0].fColor);
-        coverage->setKnownSingleComponent(0xff);
-    }
-
-    void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
-        overrides.getOverrideColorIfSet(&fRects[0].fColor);
-        fOverrides = overrides;
-    }
-
-private:
-    NonAAFillRectPerspectiveBatch() : INHERITED(ClassID()) {}
-
-    void onPrepareDraws(Target* target) const override {
-        sk_sp<GrGeometryProcessor> gp = make_persp_gp(fViewMatrix,
-                                                      fOverrides.readsCoverage(),
-                                                      fHasLocalRect,
-                                                      fHasLocalMatrix ? &fLocalMatrix : nullptr);
-        if (!gp) {
-            SkDebugf("Couldn't create GrGeometryProcessor\n");
-            return;
-        }
-        SkASSERT(fHasLocalRect
-                     ? gp->getVertexStride() ==
-                         sizeof(GrDefaultGeoProcFactory::PositionColorLocalCoordAttr)
-                     : gp->getVertexStride() == sizeof(GrDefaultGeoProcFactory::PositionColorAttr));
-
-        size_t vertexStride = gp->getVertexStride();
-        int instanceCount = fRects.count();
-
-        SkAutoTUnref<const GrBuffer> indexBuffer(target->resourceProvider()->refQuadIndexBuffer());
-        InstancedHelper helper;
-        void* vertices = helper.init(target, kTriangles_GrPrimitiveType, vertexStride,
-                                     indexBuffer, kVertsPerInstance,
-                                     kIndicesPerInstance, instanceCount);
-        if (!vertices || !indexBuffer) {
-            SkDebugf("Could not allocate vertices\n");
-            return;
-        }
-
-        for (int i = 0; i < instanceCount; i++) {
-            const RectInfo& info = fRects[i];
-            intptr_t verts = reinterpret_cast<intptr_t>(vertices) +
-                             i * kVertsPerInstance * vertexStride;
-            if (fHasLocalRect) {
-                GrQuad quad(info.fLocalRect);
-                tesselate(verts, vertexStride, info.fColor, nullptr, info.fRect, &quad);
-            } else {
-                tesselate(verts, vertexStride, info.fColor, nullptr, info.fRect, nullptr);
-            }
-        }
-        helper.recordDraw(target, gp.get());
-    }
-
-    bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override {
-        NonAAFillRectPerspectiveBatch* that = t->cast<NonAAFillRectPerspectiveBatch>();
-        if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(),
-                                    that->bounds(), caps)) {
-            return false;
-        }
-
-        // We could batch across perspective vm changes if we really wanted to
-        if (!fViewMatrix.cheapEqualTo(that->fViewMatrix)) {
-            return false;
-        }
-        if (fHasLocalRect != that->fHasLocalRect) {
-            return false;
-        }
-        if (fHasLocalMatrix && !fLocalMatrix.cheapEqualTo(that->fLocalMatrix)) {
-            return false;
-        }
-
-        // In the event of two batches, one who can tweak, one who cannot, we just fall back to
-        // not tweaking
-        if (fOverrides.canTweakAlphaForCoverage() && !that->fOverrides.canTweakAlphaForCoverage()) {
-            fOverrides = that->fOverrides;
-        }
-
-        fRects.push_back_n(that->fRects.count(), that->fRects.begin());
-        this->joinBounds(that->bounds());
-        return true;
-    }
-
-    struct RectInfo {
-        SkRect fRect;
-        GrColor fColor;
-        SkRect fLocalRect;
-    };
-
-    GrXPOverridesForBatch fOverrides;
-    SkSTArray<1, RectInfo, true> fRects;
-    bool fHasLocalMatrix;
-    bool fHasLocalRect;
-    SkMatrix fLocalMatrix;
-    SkMatrix fViewMatrix;
-
-    typedef GrVertexBatch INHERITED;
-};
-
 namespace GrNonAAFillRectBatch {
 
 GrDrawBatch* Create(GrColor color,
                     const SkMatrix& viewMatrix,
                     const SkRect& rect,
                     const SkRect* localRect,
                     const SkMatrix* localMatrix) {
     return new NonAAFillRectBatch(color, viewMatrix, rect, localRect, localMatrix);
 }
 
-GrDrawBatch* CreateWithPerspective(GrColor color,
-                                   const SkMatrix& viewMatrix,
-                                   const SkRect& rect,
-                                   const SkRect* localRect,
-                                   const SkMatrix* localMatrix) {
-    return new NonAAFillRectPerspectiveBatch(color, viewMatrix, rect, localRect, localMatrix);
-}
-
 };
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 #ifdef GR_TEST_UTILS
 
 #include "GrBatchTest.h"
 
 DRAW_BATCH_TEST_DEFINE(RectBatch) {
     GrColor color = GrRandomColor(random);
     SkRect rect = GrTest::TestRect(random);
     SkRect localRect = GrTest::TestRect(random);
     SkMatrix viewMatrix = GrTest::TestMatrixInvertible(random);
     SkMatrix localMatrix = GrTest::TestMatrix(random);
 
     bool hasLocalRect = random->nextBool();
     bool hasLocalMatrix = random->nextBool();
     return GrNonAAFillRectBatch::Create(color, viewMatrix, rect,
                                         hasLocalRect ? &localRect : nullptr,
                                         hasLocalMatrix ? &localMatrix : nullptr);
 }
 
 #endif