1/*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef GrClearStencilClipOp_DEFINED
9#define GrClearStencilClipOp_DEFINED
10
11#include "GrFixedClip.h"
12#include "GrGpu.h"
13#include "GrGpuCommandBuffer.h"
14#include "GrOp.h"
15#include "GrOpFlushState.h"
16#include "GrRenderTarget.h"
17
18class GrClearStencilClipOp final : public GrOp {
19public:
20    DEFINE_OP_CLASS_ID
21
22    static std::unique_ptr<GrOp> Make(const GrFixedClip& clip, bool insideStencilMask,
23                                      GrRenderTarget* rt) {
24        return std::unique_ptr<GrOp>(new GrClearStencilClipOp(clip, insideStencilMask, rt));
25    }
26
27    const char* name() const override { return "ClearStencilClip"; }
28
29    SkString dumpInfo() const override {
30        SkString string("Scissor [");
31        if (fClip.scissorEnabled()) {
32            const SkIRect& r = fClip.scissorRect();
33            string.appendf("L: %d, T: %d, R: %d, B: %d", r.fLeft, r.fTop, r.fRight, r.fBottom);
34        }
35        string.appendf("], IC: %d, RT: %d", fInsideStencilMask,
36                       fRenderTarget.get()->uniqueID().asUInt());
37        string.append(INHERITED::dumpInfo());
38        return string;
39    }
40
41private:
42    GrClearStencilClipOp(const GrFixedClip& clip, bool insideStencilMask, GrRenderTarget* rt)
43            : INHERITED(ClassID())
44            , fClip(clip)
45            , fInsideStencilMask(insideStencilMask)
46            , fRenderTarget(rt) {
47        const SkRect& bounds = fClip.scissorEnabled() ? SkRect::Make(fClip.scissorRect())
48                                                      : SkRect::MakeIWH(rt->width(), rt->height());
49        this->setBounds(bounds, HasAABloat::kNo, IsZeroArea::kNo);
50    }
51
52    bool onCombineIfPossible(GrOp* t, const GrCaps& caps) override { return false; }
53
54    void onPrepare(GrOpFlushState*) override {}
55
56    void onExecute(GrOpFlushState* state) override {
57        state->commandBuffer()->clearStencilClip(fRenderTarget.get(), fClip, fInsideStencilMask);
58    }
59
60    const GrFixedClip fClip;
61    const bool fInsideStencilMask;
62    GrPendingIOResource<GrRenderTarget, kWrite_GrIOType> fRenderTarget;
63
64    typedef GrOp INHERITED;
65};
66
67#endif
68