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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 GrGpu_DEFINED | 8 #ifndef GrGpu_DEFINED |
9 #define GrGpu_DEFINED | 9 #define GrGpu_DEFINED |
10 | 10 |
11 #include "GrGpuCommandBuffer.h" | 11 #include "GrGpuCommandBuffer.h" |
12 #include "GrProgramDesc.h" | 12 #include "GrProgramDesc.h" |
13 #include "GrSwizzle.h" | 13 #include "GrSwizzle.h" |
14 #include "GrAllocator.h" | 14 #include "GrAllocator.h" |
15 #include "GrTextureParamsAdjuster.h" | 15 #include "GrTextureParamsAdjuster.h" |
16 #include "GrTypes.h" | 16 #include "GrTypes.h" |
17 #include "GrXferProcessor.h" | 17 #include "GrXferProcessor.h" |
18 #include "SkPath.h" | 18 #include "SkPath.h" |
19 #include "SkTArray.h" | 19 #include "SkTArray.h" |
| 20 #include <map> |
20 | 21 |
21 class GrBatchTracker; | 22 class GrBatchTracker; |
22 class GrBuffer; | 23 class GrBuffer; |
23 class GrContext; | 24 class GrContext; |
24 struct GrContextOptions; | 25 struct GrContextOptions; |
25 class GrGLContext; | 26 class GrGLContext; |
26 class GrMesh; | 27 class GrMesh; |
27 class GrNonInstancedVertices; | 28 class GrNonInstancedVertices; |
28 class GrPath; | 29 class GrPath; |
29 class GrPathRange; | 30 class GrPathRange; |
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334 // Called to perform a surface to surface copy. Fallbacks to issuing a draw
from the src to dst | 335 // Called to perform a surface to surface copy. Fallbacks to issuing a draw
from the src to dst |
335 // take place at the GrDrawTarget level and this function implement faster c
opy paths. The rect | 336 // take place at the GrDrawTarget level and this function implement faster c
opy paths. The rect |
336 // and point are pre-clipped. The src rect and implied dst rect are guarante
ed to be within the | 337 // and point are pre-clipped. The src rect and implied dst rect are guarante
ed to be within the |
337 // src/dst bounds and non-empty. | 338 // src/dst bounds and non-empty. |
338 bool copySurface(GrSurface* dst, | 339 bool copySurface(GrSurface* dst, |
339 GrSurface* src, | 340 GrSurface* src, |
340 const SkIRect& srcRect, | 341 const SkIRect& srcRect, |
341 const SkIPoint& dstPoint); | 342 const SkIPoint& dstPoint); |
342 | 343 |
343 struct MultisampleSpecs { | 344 struct MultisampleSpecs { |
| 345 MultisampleSpecs(uint8_t uniqueID, int effectiveSampleCnt, const SkPoint
* locations) |
| 346 : fUniqueID(uniqueID), |
| 347 fEffectiveSampleCnt(effectiveSampleCnt), |
| 348 fSampleLocations(locations) {} |
| 349 |
344 // Nonzero ID that uniquely identifies these multisample specs. | 350 // Nonzero ID that uniquely identifies these multisample specs. |
345 uint8_t fUniqueID; | 351 uint8_t fUniqueID; |
346 // The actual number of samples the GPU will run. NOTE: this value can b
e greater than the | 352 // The actual number of samples the GPU will run. NOTE: this value can b
e greater than the |
347 // the render target's sample count. | 353 // the render target's sample count. |
348 int fEffectiveSampleCnt; | 354 int fEffectiveSampleCnt; |
349 // If sample locations are supported, contains the subpixel locations at
which the GPU will | 355 // If sample locations are supported, points to the subpixel locations a
t which the GPU will |
350 // sample. Pixel center is at (.5, .5) and (0, 0) indicates the top left
corner. | 356 // sample. Pixel center is at (.5, .5), and (0, 0) indicates the top lef
t corner. |
351 SkAutoTDeleteArray<const SkPoint> fSampleLocations; | 357 const SkPoint* fSampleLocations; |
352 }; | 358 }; |
353 | 359 |
354 // Finds a render target's multisample specs. The stencil settings are only
needed to flush the | 360 // Finds a render target's multisample specs. The stencil settings are only
needed to flush the |
355 // draw state prior to querying multisample information; they should not hav
e any effect on the | 361 // draw state prior to querying multisample information; they should not hav
e any effect on the |
356 // multisample information itself. | 362 // multisample information itself. |
357 const MultisampleSpecs& getMultisampleSpecs(GrRenderTarget*, const GrStencil
Settings&); | 363 const MultisampleSpecs& getMultisampleSpecs(GrRenderTarget*, const GrStencil
Settings&); |
358 | 364 |
359 // Creates a GrGpuCommandBuffer in which the GrDrawTarget can send draw comm
ands to instead of | 365 // Creates a GrGpuCommandBuffer in which the GrDrawTarget can send draw comm
ands to instead of |
360 // directly to the Gpu object. | 366 // directly to the Gpu object. |
361 virtual GrGpuCommandBuffer* createCommandBuffer( | 367 virtual GrGpuCommandBuffer* createCommandBuffer( |
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497 } | 503 } |
498 | 504 |
499 // Handles cases where a surface will be updated without a call to flushRend
erTarget | 505 // Handles cases where a surface will be updated without a call to flushRend
erTarget |
500 void didWriteToSurface(GrSurface* surface, const SkIRect* bounds, uint32_t m
ipLevels = 1) const; | 506 void didWriteToSurface(GrSurface* surface, const SkIRect* bounds, uint32_t m
ipLevels = 1) const; |
501 | 507 |
502 Stats fStats; | 508 Stats fStats; |
503 SkAutoTDelete<GrPathRendering> fPathRendering; | 509 SkAutoTDelete<GrPathRendering> fPathRendering; |
504 // Subclass must initialize this in its constructor. | 510 // Subclass must initialize this in its constructor. |
505 SkAutoTUnref<const GrCaps> fCaps; | 511 SkAutoTUnref<const GrCaps> fCaps; |
506 | 512 |
| 513 typedef SkTArray<SkPoint, true> SamplePattern; |
| 514 |
507 private: | 515 private: |
508 // called when the 3D context state is unknown. Subclass should emit any | 516 // called when the 3D context state is unknown. Subclass should emit any |
509 // assumed 3D context state and dirty any state cache. | 517 // assumed 3D context state and dirty any state cache. |
510 virtual void onResetContext(uint32_t resetBits) = 0; | 518 virtual void onResetContext(uint32_t resetBits) = 0; |
511 | 519 |
512 // Called before certain draws in order to guarantee coherent results from d
st reads. | 520 // Called before certain draws in order to guarantee coherent results from d
st reads. |
513 virtual void xferBarrier(GrRenderTarget*, GrXferBarrierType) = 0; | 521 virtual void xferBarrier(GrRenderTarget*, GrXferBarrierType) = 0; |
514 | 522 |
515 // overridden by backend-specific derived class to create objects. | 523 // overridden by backend-specific derived class to create objects. |
516 // Texture size and sample size will have already been validated in base cla
ss before | 524 // Texture size and sample size will have already been validated in base cla
ss before |
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562 // overridden by backend-specific derived class to perform the resolve | 570 // overridden by backend-specific derived class to perform the resolve |
563 virtual void onResolveRenderTarget(GrRenderTarget* target) = 0; | 571 virtual void onResolveRenderTarget(GrRenderTarget* target) = 0; |
564 | 572 |
565 // overridden by backend specific derived class to perform the copy surface | 573 // overridden by backend specific derived class to perform the copy surface |
566 virtual bool onCopySurface(GrSurface* dst, | 574 virtual bool onCopySurface(GrSurface* dst, |
567 GrSurface* src, | 575 GrSurface* src, |
568 const SkIRect& srcRect, | 576 const SkIRect& srcRect, |
569 const SkIPoint& dstPoint) = 0; | 577 const SkIPoint& dstPoint) = 0; |
570 | 578 |
571 // overridden by backend specific derived class to perform the multisample q
ueries | 579 // overridden by backend specific derived class to perform the multisample q
ueries |
572 virtual void onGetMultisampleSpecs(GrRenderTarget*, | 580 virtual void onGetMultisampleSpecs(GrRenderTarget*, const GrStencilSettings&
, |
573 const GrStencilSettings&, | 581 int* effectiveSampleCnt, SamplePattern*)
= 0; |
574 int* effectiveSampleCnt, | |
575 SkAutoTDeleteArray<SkPoint>* sampleLocati
ons) = 0; | |
576 | 582 |
577 void resetContext() { | 583 void resetContext() { |
578 this->onResetContext(fResetBits); | 584 this->onResetContext(fResetBits); |
579 fResetBits = 0; | 585 fResetBits = 0; |
580 ++fResetTimestamp; | 586 ++fResetTimestamp; |
581 } | 587 } |
582 | 588 |
583 ResetTimestamp fResetTi
mestamp; | 589 struct SamplePatternComparator { |
584 uint32_t fResetBi
ts; | 590 bool operator()(const SamplePattern&, const SamplePattern&) const; |
585 SkTArray<const MultisampleSpecs*, true> fMultisa
mpleSpecsMap; | 591 }; |
586 GrTAllocator<MultisampleSpecs> fMultisa
mpleSpecsAllocator; | 592 |
| 593 typedef std::map<SamplePattern, uint8_t, SamplePatternComparator> Multisampl
eSpecsIdMap; |
| 594 |
| 595 ResetTimestamp fResetTimestamp; |
| 596 uint32_t fResetBits; |
| 597 MultisampleSpecsIdMap fMultisampleSpecsIdMap; |
| 598 SkSTArray<1, MultisampleSpecs, true> fMultisampleSpecs; |
587 // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. | 599 // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. |
588 GrContext* fContext
; | 600 GrContext* fContext; |
589 | 601 |
590 friend class GrPathRendering; | 602 friend class GrPathRendering; |
591 friend class gr_instanced::InstancedRendering; | 603 friend class gr_instanced::InstancedRendering; |
592 typedef SkRefCnt INHERITED; | 604 typedef SkRefCnt INHERITED; |
593 }; | 605 }; |
594 | 606 |
595 #endif | 607 #endif |
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