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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrFixedClip_DEFINED | 8 #ifndef GrFixedClip_DEFINED |
9 #define GrFixedClip_DEFINED | 9 #define GrFixedClip_DEFINED |
10 | 10 |
11 #include "GrClip.h" | 11 #include "GrClip.h" |
12 #include "GrTypesPriv.h" | 12 #include "GrTypesPriv.h" |
13 | 13 |
14 /** | 14 /** |
15 * GrFixedClip is a clip that can be represented by fixed-function hardware. It
never modifies the | 15 * GrFixedClip is a clip that gets implemented by fixed-function hardware. |
16 * stencil buffer itself, but can be configured to use whatever clip is already
there. | |
17 */ | 16 */ |
18 class GrFixedClip final : public GrClip { | 17 class GrFixedClip final : public GrClip { |
19 public: | 18 public: |
20 GrFixedClip() : fHasStencilClip(false) {} | 19 GrFixedClip() = default; |
21 GrFixedClip(const SkIRect& scissorRect) | 20 explicit GrFixedClip(const SkIRect& scissorRect) : fScissorState(scissorRect
) {} |
22 : fScissorState(scissorRect) | |
23 , fHasStencilClip(false) {} | |
24 | 21 |
25 void reset() { | 22 const GrScissorState& scissorState() const { return fScissorState; } |
26 fScissorState.setDisabled(); | 23 bool scissorEnabled() const { return fScissorState.enabled(); } |
27 fHasStencilClip = false; | 24 const SkIRect& scissorRect() const { SkASSERT(scissorEnabled()); return fSci
ssorState.rect(); } |
| 25 |
| 26 void disableScissor() { fScissorState.setDisabled(); } |
| 27 |
| 28 bool SK_WARN_UNUSED_RESULT intersect(const SkIRect& irect) { |
| 29 return fScissorState.intersect(irect); |
28 } | 30 } |
29 | 31 |
30 void reset(const SkIRect& scissorRect) { | 32 bool quickContains(const SkRect& rect) const final { |
31 fScissorState.set(scissorRect); | 33 return !fScissorState.enabled() || GrClip::IsInsideClip(fScissorState.re
ct(), rect); |
32 fHasStencilClip = false; | |
33 } | 34 } |
34 | |
35 void enableStencilClip() { fHasStencilClip = true; } | |
36 void disableStencilClip() { fHasStencilClip = false; } | |
37 | |
38 bool quickContains(const SkRect&) const final; | |
39 void getConservativeBounds(int width, int height, SkIRect* devResult, | 35 void getConservativeBounds(int width, int height, SkIRect* devResult, |
40 bool* isIntersectionOfRects) const final; | 36 bool* isIntersectionOfRects) const final; |
41 | 37 |
42 bool isRRect(const SkRect& rtBounds, SkRRect* rr, bool* aa) const override { | 38 bool isRRect(const SkRect& rtBounds, SkRRect* rr, bool* aa) const override { |
43 if (fHasStencilClip) { | |
44 return false; | |
45 } | |
46 if (fScissorState.enabled()) { | 39 if (fScissorState.enabled()) { |
47 SkRect rect = SkRect::Make(fScissorState.rect()); | 40 SkRect rect = SkRect::Make(fScissorState.rect()); |
48 if (!rect.intersects(rtBounds)) { | 41 if (!rect.intersects(rtBounds)) { |
49 return false; | 42 return false; |
50 } | 43 } |
51 rr->setRect(rect); | 44 rr->setRect(rect); |
52 *aa = false; | 45 *aa = false; |
53 return true; | 46 return true; |
54 } | 47 } |
55 return false; | 48 return false; |
56 }; | 49 }; |
57 | 50 |
58 private: | |
59 bool apply(GrContext*, GrDrawContext*, bool useHWAA, bool hasUserStencilSett
ings, | 51 bool apply(GrContext*, GrDrawContext*, bool useHWAA, bool hasUserStencilSett
ings, |
60 GrAppliedClip* out) const final; | 52 GrAppliedClip* out) const final; |
61 | 53 |
| 54 static const GrFixedClip& Disabled(); |
| 55 |
| 56 private: |
62 GrScissorState fScissorState; | 57 GrScissorState fScissorState; |
63 bool fHasStencilClip; | |
64 }; | 58 }; |
65 | 59 |
66 #endif | 60 #endif |
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