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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #ifndef SkGpuDevice_DEFINED | 9 #ifndef SkGpuDevice_DEFINED |
10 #define SkGpuDevice_DEFINED | 10 #define SkGpuDevice_DEFINED |
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23 | 23 |
24 class GrAccelData; | 24 class GrAccelData; |
25 struct GrCachedLayer; | 25 struct GrCachedLayer; |
26 | 26 |
27 /** | 27 /** |
28 * Subclass of SkBaseDevice, which directs all drawing to the GrGpu owned by th
e | 28 * Subclass of SkBaseDevice, which directs all drawing to the GrGpu owned by th
e |
29 * canvas. | 29 * canvas. |
30 */ | 30 */ |
31 class SK_API SkGpuDevice : public SkBaseDevice { | 31 class SK_API SkGpuDevice : public SkBaseDevice { |
32 public: | 32 public: |
33 enum Flags { | 33 enum InitContents { |
34 kNeedClear_Flag = 1 << 0, //!< Surface requires an initial clear | 34 kClear_InitContents, |
| 35 kUninit_InitContents |
35 }; | 36 }; |
36 | 37 |
37 /** | 38 /** |
38 * Creates an SkGpuDevice from a GrRenderTarget. | 39 * Creates an SkGpuDevice from a GrRenderTarget. |
39 */ | 40 */ |
40 static SkGpuDevice* Create(GrRenderTarget* target, const SkSurfaceProps*, un
signed flags = 0); | 41 static SkGpuDevice* Create(GrRenderTarget* target, const SkSurfaceProps*, In
itContents); |
41 | 42 |
42 /** | 43 /** |
43 * Creates an SkGpuDevice from a GrRenderTarget whose texture width/height i
s | 44 * Creates an SkGpuDevice from a GrRenderTarget whose texture width/height i
s |
44 * different than its actual width/height (e.g., approx-match scratch textur
e). | 45 * different than its actual width/height (e.g., approx-match scratch textur
e). |
45 */ | 46 */ |
46 static SkGpuDevice* Create(GrRenderTarget* target, int width, int height, | 47 static SkGpuDevice* Create(GrRenderTarget* target, int width, int height, |
47 const SkSurfaceProps*, unsigned flags = 0); | 48 const SkSurfaceProps*, InitContents); |
48 | 49 |
49 /** | 50 /** |
50 * New device that will create an offscreen renderTarget based on the ImageI
nfo and | 51 * New device that will create an offscreen renderTarget based on the ImageI
nfo and |
51 * sampleCount. The Budgeted param controls whether the device's backing sto
re counts against | 52 * sampleCount. The Budgeted param controls whether the device's backing sto
re counts against |
52 * the resource cache budget. On failure, returns NULL. | 53 * the resource cache budget. On failure, returns NULL. |
53 */ | 54 */ |
54 static SkGpuDevice* Create(GrContext*, SkSurface::Budgeted, const SkImageInf
o&, | 55 static SkGpuDevice* Create(GrContext*, SkSurface::Budgeted, const SkImageInf
o&, |
55 int sampleCount, const SkSurfaceProps*, unsigned
flags = 0); | 56 int sampleCount, const SkSurfaceProps*, InitConte
nts); |
56 | 57 |
57 virtual ~SkGpuDevice(); | 58 virtual ~SkGpuDevice(); |
58 | 59 |
59 SkGpuDevice* cloneDevice(const SkSurfaceProps& props) { | 60 SkGpuDevice* cloneDevice(const SkSurfaceProps& props) { |
60 SkBaseDevice* dev = this->onCreateDevice(CreateInfo(this->imageInfo(), k
Possible_TileUsage, | 61 SkBaseDevice* dev = this->onCreateDevice(CreateInfo(this->imageInfo(), k
Possible_TileUsage, |
61 props.pixelGeometry(
)), | 62 props.pixelGeometry(
)), |
62 NULL); | 63 NULL); |
63 return static_cast<SkGpuDevice*>(dev); | 64 return static_cast<SkGpuDevice*>(dev); |
64 } | 65 } |
65 | 66 |
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146 GrContext* fContext; | 147 GrContext* fContext; |
147 GrSkDrawProcs* fDrawProcs; | 148 GrSkDrawProcs* fDrawProcs; |
148 SkAutoTUnref<const SkClipStack> fClipStack; | 149 SkAutoTUnref<const SkClipStack> fClipStack; |
149 SkIPoint fClipOrigin; | 150 SkIPoint fClipOrigin; |
150 GrClip fClip; | 151 GrClip fClip; |
151 SkAutoTUnref<GrDrawContext> fDrawContext; | 152 SkAutoTUnref<GrDrawContext> fDrawContext; |
152 GrRenderTarget* fRenderTarget; | 153 GrRenderTarget* fRenderTarget; |
153 // remove when our clients don't rely on accessBitmap() | 154 // remove when our clients don't rely on accessBitmap() |
154 SkBitmap fLegacyBitmap; | 155 SkBitmap fLegacyBitmap; |
155 bool fNeedClear; | 156 bool fNeedClear; |
| 157 bool fOpaque; |
| 158 |
| 159 enum Flags { |
| 160 kNeedClear_Flag = 1 << 0, //!< Surface requires an initial clear |
| 161 kIsOpaque_Flag = 1 << 1, //!< Hint from client that rendering to this
device will be |
| 162 // opaque even if the config supports alpha
. |
| 163 }; |
| 164 static bool CheckAlphaTypeAndGetFlags(const SkImageInfo* info, InitContents
init, |
| 165 unsigned* flags); |
156 | 166 |
157 SkGpuDevice(GrRenderTarget*, int width, int height, const SkSurfaceProps*, u
nsigned flags); | 167 SkGpuDevice(GrRenderTarget*, int width, int height, const SkSurfaceProps*, u
nsigned flags); |
158 | 168 |
159 SkBaseDevice* onCreateDevice(const CreateInfo&, const SkPaint*) override; | 169 SkBaseDevice* onCreateDevice(const CreateInfo&, const SkPaint*) override; |
160 | 170 |
161 SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps&) override; | 171 SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps&) override; |
162 | 172 |
163 SkImageFilter::Cache* getImageFilterCache() override; | 173 SkImageFilter::Cache* getImageFilterCache() override; |
164 | 174 |
165 bool forceConservativeRasterClip() const override { return true; } | 175 bool forceConservativeRasterClip() const override { return true; } |
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212 | 222 |
213 static GrRenderTarget* CreateRenderTarget(GrContext*, SkSurface::Budgeted, c
onst SkImageInfo&, | 223 static GrRenderTarget* CreateRenderTarget(GrContext*, SkSurface::Budgeted, c
onst SkImageInfo&, |
214 int sampleCount); | 224 int sampleCount); |
215 | 225 |
216 friend class GrAtlasTextContext; | 226 friend class GrAtlasTextContext; |
217 friend class SkSurface_Gpu; // for access to surfaceProps | 227 friend class SkSurface_Gpu; // for access to surfaceProps |
218 typedef SkBaseDevice INHERITED; | 228 typedef SkBaseDevice INHERITED; |
219 }; | 229 }; |
220 | 230 |
221 #endif | 231 #endif |
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