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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrContext_DEFINED | 8 #ifndef GrContext_DEFINED |
9 #define GrContext_DEFINED | 9 #define GrContext_DEFINED |
10 | 10 |
11 #include "GrClip.h" | 11 #include "GrClip.h" |
12 #include "GrColor.h" | 12 #include "GrColor.h" |
13 #include "GrPaint.h" | 13 #include "GrPaint.h" |
14 #include "GrPathRendererChain.h" | 14 #include "GrPathRendererChain.h" |
15 #include "GrRenderTarget.h" | 15 #include "GrRenderTarget.h" |
16 #include "GrTextureProvider.h" | 16 #include "GrTextureProvider.h" |
17 #include "SkMatrix.h" | 17 #include "SkMatrix.h" |
18 #include "SkPathEffect.h" | 18 #include "SkPathEffect.h" |
19 #include "SkTypes.h" | 19 #include "SkTypes.h" |
20 | 20 |
21 class GrAARectRenderer; | 21 class GrAARectRenderer; |
22 class GrBatchFontCache; | 22 class GrBatchFontCache; |
| 23 class GrCaps; |
23 struct GrContextOptions; | 24 struct GrContextOptions; |
24 class GrDrawContext; | 25 class GrDrawContext; |
25 class GrDrawTarget; | 26 class GrDrawTarget; |
26 class GrFragmentProcessor; | 27 class GrFragmentProcessor; |
27 class GrGpu; | 28 class GrGpu; |
28 class GrGpuTraceMarker; | 29 class GrGpuTraceMarker; |
29 class GrIndexBuffer; | 30 class GrIndexBuffer; |
30 class GrLayerCache; | 31 class GrLayerCache; |
31 class GrOvalRenderer; | 32 class GrOvalRenderer; |
32 class GrPath; | 33 class GrPath; |
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148 */ | 149 */ |
149 void freeGpuResources(); | 150 void freeGpuResources(); |
150 | 151 |
151 /** | 152 /** |
152 * Purge all the unlocked resources from the cache. | 153 * Purge all the unlocked resources from the cache. |
153 * This entry point is mainly meant for timing texture uploads | 154 * This entry point is mainly meant for timing texture uploads |
154 * and is not defined in normal builds of Skia. | 155 * and is not defined in normal builds of Skia. |
155 */ | 156 */ |
156 void purgeAllUnlockedResources(); | 157 void purgeAllUnlockedResources(); |
157 | 158 |
158 ////////////////////////////////////////////////////////////////////////// | 159 /** Access the context capabilities */ |
159 /// Texture and Render Target Queries | 160 const GrCaps* caps() const { return fCaps; } |
160 | |
161 /** | |
162 * Are shader derivatives supported? | |
163 */ | |
164 bool shaderDerivativeSupport() const; | |
165 | |
166 /** | |
167 * Can the provided configuration act as a texture? | |
168 */ | |
169 bool isConfigTexturable(GrPixelConfig) const; | |
170 | |
171 /** | |
172 * Can non-power-of-two textures be used with tile modes other than clamp? | |
173 */ | |
174 bool npotTextureTileSupport() const; | |
175 | |
176 /** | |
177 * Return the max width or height of a texture supported by the current GPU
. | |
178 */ | |
179 int getMaxTextureSize() const; | |
180 | |
181 /** | |
182 * Can the provided configuration act as a color render target? | |
183 */ | |
184 bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const; | |
185 | |
186 /** | |
187 * Return the max width or height of a render target supported by the | |
188 * current GPU. | |
189 */ | |
190 int getMaxRenderTargetSize() const; | |
191 | |
192 /** | |
193 * Returns the max sample count for a render target. It will be 0 if MSAA | |
194 * is not supported. | |
195 */ | |
196 int getMaxSampleCount() const; | |
197 | 161 |
198 /** | 162 /** |
199 * Returns the recommended sample count for a render target when using this | 163 * Returns the recommended sample count for a render target when using this |
200 * context. | 164 * context. |
201 * | 165 * |
202 * @param config the configuration of the render target. | 166 * @param config the configuration of the render target. |
203 * @param dpi the display density in dots per inch. | 167 * @param dpi the display density in dots per inch. |
204 * | 168 * |
205 * @return sample count that should be perform well and have good enough | 169 * @return sample count that should be perform well and have good enough |
206 * rendering quality for the display. Alternatively returns 0 if | 170 * rendering quality for the display. Alternatively returns 0 if |
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385 /** Prints cache stats to the string if GR_CACHE_STATS == 1. */ | 349 /** Prints cache stats to the string if GR_CACHE_STATS == 1. */ |
386 void dumpCacheStats(SkString*) const; | 350 void dumpCacheStats(SkString*) const; |
387 void printCacheStats() const; | 351 void printCacheStats() const; |
388 | 352 |
389 /** Prints GPU stats to the string if GR_GPU_STATS == 1. */ | 353 /** Prints GPU stats to the string if GR_GPU_STATS == 1. */ |
390 void dumpGpuStats(SkString*) const; | 354 void dumpGpuStats(SkString*) const; |
391 void printGpuStats() const; | 355 void printGpuStats() const; |
392 | 356 |
393 private: | 357 private: |
394 GrGpu* fGpu; | 358 GrGpu* fGpu; |
| 359 const GrCaps* fCaps; |
395 GrResourceCache* fResourceCache; | 360 GrResourceCache* fResourceCache; |
396 // this union exists because the inheritance of GrTextureProvider->GrResourc
eProvider | 361 // this union exists because the inheritance of GrTextureProvider->GrResourc
eProvider |
397 // is in a private header. | 362 // is in a private header. |
398 union { | 363 union { |
399 GrResourceProvider* fResourceProvider; | 364 GrResourceProvider* fResourceProvider; |
400 GrTextureProvider* fTextureProvider; | 365 GrTextureProvider* fTextureProvider; |
401 }; | 366 }; |
402 | 367 |
403 GrBatchFontCache* fBatchFontCache; | 368 GrBatchFontCache* fBatchFontCache; |
404 SkAutoTDelete<GrLayerCache> fLayerCache; | 369 SkAutoTDelete<GrLayerCache> fLayerCache; |
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496 */ | 461 */ |
497 static void TextBlobCacheOverBudgetCB(void* data); | 462 static void TextBlobCacheOverBudgetCB(void* data); |
498 | 463 |
499 // TODO see note on createTextContext | 464 // TODO see note on createTextContext |
500 friend class SkGpuDevice; | 465 friend class SkGpuDevice; |
501 | 466 |
502 typedef SkRefCnt INHERITED; | 467 typedef SkRefCnt INHERITED; |
503 }; | 468 }; |
504 | 469 |
505 #endif | 470 #endif |
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