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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 | 8 |
9 #ifndef GrGLCaps_DEFINED | 9 #ifndef GrGLCaps_DEFINED |
10 #define GrGLCaps_DEFINED | 10 #define GrGLCaps_DEFINED |
11 | 11 |
12 #include "GrDrawTargetCaps.h" | 12 #include "GrDrawTargetCaps.h" |
13 #include "GrGLStencilBuffer.h" | 13 #include "GrGLStencilBuffer.h" |
| 14 #include "SkTHashCache.h" |
14 #include "SkTArray.h" | 15 #include "SkTArray.h" |
15 #include "SkTDArray.h" | |
16 | 16 |
17 class GrGLContextInfo; | 17 class GrGLContextInfo; |
18 | 18 |
19 /** | 19 /** |
20 * Stores some capabilities of a GL context. Most are determined by the GL | 20 * Stores some capabilities of a GL context. Most are determined by the GL |
21 * version and the extensions string. It also tracks formats that have passed | 21 * version and the extensions string. It also tracks formats that have passed |
22 * the FBO completeness test. | 22 * the FBO completeness test. |
23 */ | 23 */ |
24 class GrGLCaps : public GrDrawTargetCaps { | 24 class GrGLCaps : public GrDrawTargetCaps { |
25 public: | 25 public: |
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246 bool vertexArrayObjectSupport() const { return fVertexArrayObjectSupport; } | 246 bool vertexArrayObjectSupport() const { return fVertexArrayObjectSupport; } |
247 | 247 |
248 /// Use indices or vertices in CPU arrays rather than VBOs for dynamic conte
nt. | 248 /// Use indices or vertices in CPU arrays rather than VBOs for dynamic conte
nt. |
249 bool useNonVBOVertexAndIndexDynamicData() const { | 249 bool useNonVBOVertexAndIndexDynamicData() const { |
250 return fUseNonVBOVertexAndIndexDynamicData; | 250 return fUseNonVBOVertexAndIndexDynamicData; |
251 } | 251 } |
252 | 252 |
253 /// Does ReadPixels support the provided format/type combo? | 253 /// Does ReadPixels support the provided format/type combo? |
254 bool readPixelsSupported(const GrGLInterface* intf, | 254 bool readPixelsSupported(const GrGLInterface* intf, |
255 GrGLenum format, | 255 GrGLenum format, |
256 GrGLenum type) const; | 256 GrGLenum type, |
| 257 GrGLenum currFboFormat) const; |
257 | 258 |
258 bool isCoreProfile() const { return fIsCoreProfile; } | 259 bool isCoreProfile() const { return fIsCoreProfile; } |
259 | 260 |
260 | 261 |
261 bool fullClearIsFree() const { return fFullClearIsFree; } | 262 bool fullClearIsFree() const { return fFullClearIsFree; } |
262 | 263 |
263 bool dropsTileOnZeroDivide() const { return fDropsTileOnZeroDivide; } | 264 bool dropsTileOnZeroDivide() const { return fDropsTileOnZeroDivide; } |
264 | 265 |
265 /** | 266 /** |
266 * Returns a string containing the caps info. | 267 * Returns a string containing the caps info. |
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317 return SkToBool(fVerifiedColorConfigs[u32Idx] & (1 << bitIdx)); | 318 return SkToBool(fVerifiedColorConfigs[u32Idx] & (1 << bitIdx)); |
318 } | 319 } |
319 }; | 320 }; |
320 | 321 |
321 void initFSAASupport(const GrGLContextInfo&, const GrGLInterface*); | 322 void initFSAASupport(const GrGLContextInfo&, const GrGLInterface*); |
322 void initStencilFormats(const GrGLContextInfo&); | 323 void initStencilFormats(const GrGLContextInfo&); |
323 // This must be called after initFSAASupport(). | 324 // This must be called after initFSAASupport(). |
324 void initConfigRenderableTable(const GrGLContextInfo&); | 325 void initConfigRenderableTable(const GrGLContextInfo&); |
325 void initConfigTexturableTable(const GrGLContextInfo&, const GrGLInterface*)
; | 326 void initConfigTexturableTable(const GrGLContextInfo&, const GrGLInterface*)
; |
326 | 327 |
| 328 bool doReadPixelsSupported(const GrGLInterface* intf, |
| 329 GrGLenum format, |
| 330 GrGLenum type) const; |
| 331 |
327 // tracks configs that have been verified to pass the FBO completeness when | 332 // tracks configs that have been verified to pass the FBO completeness when |
328 // used as a color attachment | 333 // used as a color attachment |
329 VerifiedColorConfigs fVerifiedColorConfigs; | 334 VerifiedColorConfigs fVerifiedColorConfigs; |
330 | 335 |
331 SkTArray<StencilFormat, true> fStencilFormats; | 336 SkTArray<StencilFormat, true> fStencilFormats; |
332 // tracks configs that have been verified to pass the FBO completeness when | 337 // tracks configs that have been verified to pass the FBO completeness when |
333 // used as a color attachment when a particular stencil format is used | 338 // used as a color attachment when a particular stencil format is used |
334 // as a stencil attachment. | 339 // as a stencil attachment. |
335 SkTArray<VerifiedColorConfigs, true> fStencilVerifiedColorConfigs; | 340 SkTArray<VerifiedColorConfigs, true> fStencilVerifiedColorConfigs; |
336 | 341 |
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357 bool fTextureRedSupport : 1; | 362 bool fTextureRedSupport : 1; |
358 bool fImagingSupport : 1; | 363 bool fImagingSupport : 1; |
359 bool fTwoFormatLimit : 1; | 364 bool fTwoFormatLimit : 1; |
360 bool fFragCoordsConventionSupport : 1; | 365 bool fFragCoordsConventionSupport : 1; |
361 bool fVertexArrayObjectSupport : 1; | 366 bool fVertexArrayObjectSupport : 1; |
362 bool fUseNonVBOVertexAndIndexDynamicData : 1; | 367 bool fUseNonVBOVertexAndIndexDynamicData : 1; |
363 bool fIsCoreProfile : 1; | 368 bool fIsCoreProfile : 1; |
364 bool fFullClearIsFree : 1; | 369 bool fFullClearIsFree : 1; |
365 bool fDropsTileOnZeroDivide : 1; | 370 bool fDropsTileOnZeroDivide : 1; |
366 | 371 |
| 372 struct ReadPixelsSupportedFormatsKey { |
| 373 GrGLenum fFormat; |
| 374 GrGLenum fType; |
| 375 GrGLenum fFboFormat; |
| 376 |
| 377 bool operator==(const ReadPixelsSupportedFormatsKey& rhs) const { |
| 378 return fFormat == rhs.fFormat |
| 379 && fType == rhs.fType |
| 380 && fFboFormat == rhs.fFboFormat; |
| 381 } |
| 382 }; |
| 383 |
| 384 class ReadPixelsSupportedFormats { |
| 385 public: |
| 386 ReadPixelsSupportedFormats(ReadPixelsSupportedFormatsKey key, |
| 387 bool value) |
| 388 :fKey(key), fValue(value) { |
| 389 } |
| 390 |
| 391 static const ReadPixelsSupportedFormatsKey& GetKey(const ReadPixelsSuppo
rtedFormats& element) { |
| 392 return element.fKey; |
| 393 } |
| 394 static uint32_t Hash(const ReadPixelsSupportedFormatsKey&); |
| 395 |
| 396 bool value() const { return fValue; } |
| 397 private: |
| 398 ReadPixelsSupportedFormatsKey fKey; |
| 399 bool fValue; |
| 400 }; |
| 401 |
| 402 mutable SkTHashCache<ReadPixelsSupportedFormats, ReadPixelsSupportedFormatsK
ey> fReadPixelsSupportedCache; |
| 403 |
367 typedef GrDrawTargetCaps INHERITED; | 404 typedef GrDrawTargetCaps INHERITED; |
368 }; | 405 }; |
369 | 406 |
370 #endif | 407 #endif |
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