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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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551 // Unlike enumeration histograms, sparse histograms only allocate memory for
non-empty buckets. | 551 // Unlike enumeration histograms, sparse histograms only allocate memory for
non-empty buckets. |
552 virtual void histogramSparse(const char* name, int sample) { } | 552 virtual void histogramSparse(const char* name, int sample) { } |
553 | 553 |
554 | 554 |
555 // GPU ---------------------------------------------------------------- | 555 // GPU ---------------------------------------------------------------- |
556 // | 556 // |
557 // May return null if GPU is not supported. | 557 // May return null if GPU is not supported. |
558 // Returns newly allocated and initialized offscreen WebGraphicsContext3D in
stance. | 558 // Returns newly allocated and initialized offscreen WebGraphicsContext3D in
stance. |
559 // Passing an existing context to shareContext will create the new context i
n the same share group as the passed context. | 559 // Passing an existing context to shareContext will create the new context i
n the same share group as the passed context. |
560 virtual WebGraphicsContext3D* createOffscreenGraphicsContext3D(const WebGrap
hicsContext3D::Attributes&, WebGraphicsContext3D* shareContext) { return 0; } | 560 virtual WebGraphicsContext3D* createOffscreenGraphicsContext3D(const WebGrap
hicsContext3D::Attributes&, WebGraphicsContext3D* shareContext) { return 0; } |
| 561 virtual WebGraphicsContext3D* createOffscreenGraphicsContext3D(const WebGrap
hicsContext3D::Attributes&, WebGraphicsContext3D* shareContext, WebGLInfo* glInf
o) { return 0; } |
561 virtual WebGraphicsContext3D* createOffscreenGraphicsContext3D(const WebGrap
hicsContext3D::Attributes&) { return 0; } | 562 virtual WebGraphicsContext3D* createOffscreenGraphicsContext3D(const WebGrap
hicsContext3D::Attributes&) { return 0; } |
562 | 563 |
563 // Returns a newly allocated and initialized offscreen context provider. The
provider may return a null | 564 // Returns a newly allocated and initialized offscreen context provider. The
provider may return a null |
564 // graphics context if GPU is not supported. | 565 // graphics context if GPU is not supported. |
565 virtual WebGraphicsContext3DProvider* createSharedOffscreenGraphicsContext3D
Provider() { return 0; } | 566 virtual WebGraphicsContext3DProvider* createSharedOffscreenGraphicsContext3D
Provider() { return 0; } |
566 | 567 |
567 // Returns true if the platform is capable of producing an offscreen context
suitable for accelerating 2d canvas. | 568 // Returns true if the platform is capable of producing an offscreen context
suitable for accelerating 2d canvas. |
568 // This will return false if the platform cannot promise that contexts will
be preserved across operations like | 569 // This will return false if the platform cannot promise that contexts will
be preserved across operations like |
569 // locking the screen or if the platform cannot provide a context with suita
ble performance characteristics. | 570 // locking the screen or if the platform cannot provide a context with suita
ble performance characteristics. |
570 // | 571 // |
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639 | 640 |
640 virtual WebGeofencingProvider* geofencingProvider() { return 0; } | 641 virtual WebGeofencingProvider* geofencingProvider() { return 0; } |
641 | 642 |
642 protected: | 643 protected: |
643 virtual ~Platform() { } | 644 virtual ~Platform() { } |
644 }; | 645 }; |
645 | 646 |
646 } // namespace blink | 647 } // namespace blink |
647 | 648 |
648 #endif | 649 #endif |
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