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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 SkSpecialImage_DEFINED | 8 #ifndef SkSpecialImage_DEFINED |
9 #define SkSpecialImage_DEFINED | 9 #define SkSpecialImage_DEFINED |
10 | 10 |
11 #include "SkNextID.h" | 11 #include "SkNextID.h" |
12 #include "SkRefCnt.h" | 12 #include "SkRefCnt.h" |
13 | 13 |
14 // remove this when internal_getProxy goes away (see skbug.com/4965) | 14 // remove this when internal_getProxy goes away (see skbug.com/4965) |
15 #include "SkImageFilter.h" | 15 #include "SkImageFilter.h" |
16 | 16 |
17 #include "SkImageInfo.h" // for SkAlphaType | 17 #include "SkImageInfo.h" // for SkAlphaType |
18 | 18 |
19 class GrContext; | 19 class GrContext; |
20 class GrTexture; | 20 class GrTexture; |
21 class SkBitmap; | 21 class SkBitmap; |
22 class SkCanvas; | 22 class SkCanvas; |
23 class SkImage; | 23 class SkImage; |
24 struct SkImageInfo; | 24 struct SkImageInfo; |
25 class SkPaint; | 25 class SkPaint; |
26 class SkPixmap; | 26 class SkPixmap; |
27 class SkSpecialSurface; | 27 class SkSpecialSurface; |
| 28 class SkSurface; |
28 | 29 |
29 enum { | 30 enum { |
30 kNeedNewImageUniqueID_SpecialImage = 0 | 31 kNeedNewImageUniqueID_SpecialImage = 0 |
31 }; | 32 }; |
32 | 33 |
33 /** | 34 /** |
34 * This is a restricted form of SkImage solely intended for internal use. It | 35 * This is a restricted form of SkImage solely intended for internal use. It |
35 * differs from SkImage in that: | 36 * differs from SkImage in that: |
36 * - it can only be backed by raster or gpu (no generators) | 37 * - it can only be backed by raster or gpu (no generators) |
37 * - it can be backed by a GrTexture larger than its nominal bounds | 38 * - it can be backed by a GrTexture larger than its nominal bounds |
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77 uint32_t uniqueID, | 78 uint32_t uniqueID, |
78 GrTexture*, | 79 GrTexture*, |
79 SkAlphaType at = kPremul_SkAlphaTyp
e); | 80 SkAlphaType at = kPremul_SkAlphaTyp
e); |
80 static sk_sp<SkSpecialImage> MakeFromPixmap(SkImageFilter::Proxy*, | 81 static sk_sp<SkSpecialImage> MakeFromPixmap(SkImageFilter::Proxy*, |
81 const SkIRect& subset, | 82 const SkIRect& subset, |
82 const SkPixmap&, | 83 const SkPixmap&, |
83 RasterReleaseProc, | 84 RasterReleaseProc, |
84 ReleaseContext); | 85 ReleaseContext); |
85 | 86 |
86 /** | 87 /** |
87 * Create a new surface with a backend that is compatible with this image. | 88 * Create a new special surface with a backend that is compatible with this
special image. |
88 */ | 89 */ |
89 sk_sp<SkSpecialSurface> makeSurface(const SkImageInfo&) const; | 90 sk_sp<SkSpecialSurface> makeSurface(const SkImageInfo&) const; |
90 | 91 |
91 /** | 92 /** |
| 93 * Create a new surface with a backend that is compatible with this special
image. |
| 94 * TODO: switch this to makeSurface once we resolved the naming issue |
| 95 */ |
| 96 sk_sp<SkSurface> makeTightSurface(const SkImageInfo&) const; |
| 97 |
| 98 /** |
92 * Extract a subset of this special image and return it as a special image. | 99 * Extract a subset of this special image and return it as a special image. |
93 * It may or may not point to the same backing memory. | 100 * It may or may not point to the same backing memory. |
94 */ | 101 */ |
95 sk_sp<SkSpecialImage> makeSubset(const SkIRect& subset) const; | 102 sk_sp<SkSpecialImage> makeSubset(const SkIRect& subset) const; |
96 | 103 |
| 104 /** |
| 105 * Extract a subset of this special image and return it as an SkImage. |
| 106 * It may or may not point to the same backing memory. |
| 107 * TODO: switch this to makeSurface once we resolved the naming issue |
| 108 */ |
| 109 sk_sp<SkImage> makeTightSubset(const SkIRect& subset) const; |
| 110 |
97 // These three internal methods will go away (see skbug.com/4965) | 111 // These three internal methods will go away (see skbug.com/4965) |
98 bool internal_getBM(SkBitmap* result); | 112 bool internal_getBM(SkBitmap* result); |
99 static sk_sp<SkSpecialImage> internal_fromBM(SkImageFilter::Proxy*, const Sk
Bitmap&); | 113 static sk_sp<SkSpecialImage> internal_fromBM(SkImageFilter::Proxy*, const Sk
Bitmap&); |
100 SkImageFilter::Proxy* internal_getProxy() const; | 114 SkImageFilter::Proxy* internal_getProxy() const; |
101 | 115 |
102 // TODO: hide this when GrLayerHoister uses SkSpecialImages more fully (see
skbug.com/5063) | 116 // TODO: hide this when GrLayerHoister uses SkSpecialImages more fully (see
skbug.com/5063) |
103 /** | 117 /** |
104 * If the SpecialImage is backed by a gpu texture, return that texture. | 118 * If the SpecialImage is backed by a gpu texture, return that texture. |
105 * The active portion of the texture can be retrieved via 'subset'. | 119 * The active portion of the texture can be retrieved via 'subset'. |
106 */ | 120 */ |
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144 const uint32_t fUniqueID; | 158 const uint32_t fUniqueID; |
145 | 159 |
146 // TODO: remove this ASAP (see skbug.com/4965) | 160 // TODO: remove this ASAP (see skbug.com/4965) |
147 SkImageFilter::Proxy* fProxy; | 161 SkImageFilter::Proxy* fProxy; |
148 | 162 |
149 typedef SkRefCnt INHERITED; | 163 typedef SkRefCnt INHERITED; |
150 }; | 164 }; |
151 | 165 |
152 #endif | 166 #endif |
153 | 167 |
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