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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 "GrColor.h" | 11 #include "GrColor.h" |
12 #include "GrClipData.h" | 12 #include "GrClipData.h" |
13 #include "SkMatrix.h" | 13 #include "SkMatrix.h" |
14 #include "GrPaint.h" | 14 #include "GrPaint.h" |
15 #include "GrPathRendererChain.h" | 15 #include "GrPathRendererChain.h" |
16 #include "GrPoint.h" | 16 #include "GrPoint.h" |
17 #include "GrRenderTarget.h" | 17 #include "GrRenderTarget.h" |
18 #include "GrRefCnt.h" | |
19 #include "GrTexture.h" | 18 #include "GrTexture.h" |
20 | 19 |
21 class GrAARectRenderer; | 20 class GrAARectRenderer; |
22 class GrAutoScratchTexture; | 21 class GrAutoScratchTexture; |
23 class GrDrawState; | 22 class GrDrawState; |
24 class GrDrawTarget; | 23 class GrDrawTarget; |
25 class GrEffect; | 24 class GrEffect; |
26 class GrFontCache; | 25 class GrFontCache; |
27 class GrGpu; | 26 class GrGpu; |
28 class GrIndexBuffer; | 27 class GrIndexBuffer; |
29 class GrIndexBufferAllocPool; | 28 class GrIndexBufferAllocPool; |
30 class GrInOrderDrawBuffer; | 29 class GrInOrderDrawBuffer; |
31 class GrOvalRenderer; | 30 class GrOvalRenderer; |
32 class GrPathRenderer; | 31 class GrPathRenderer; |
33 class GrResourceEntry; | 32 class GrResourceEntry; |
34 class GrResourceCache; | 33 class GrResourceCache; |
35 class GrStencilBuffer; | 34 class GrStencilBuffer; |
36 class GrTestTarget; | 35 class GrTestTarget; |
37 class GrTextureParams; | 36 class GrTextureParams; |
38 class GrVertexBuffer; | 37 class GrVertexBuffer; |
39 class GrVertexBufferAllocPool; | 38 class GrVertexBufferAllocPool; |
40 class GrSoftwarePathRenderer; | 39 class GrSoftwarePathRenderer; |
41 class SkStrokeRec; | 40 class SkStrokeRec; |
42 | 41 |
43 class SK_API GrContext : public GrRefCnt { | 42 class SK_API GrContext : public SkRefCnt { |
44 public: | 43 public: |
45 SK_DECLARE_INST_COUNT(GrContext) | 44 SK_DECLARE_INST_COUNT(GrContext) |
46 | 45 |
47 /** | 46 /** |
48 * Creates a GrContext for a backend context. | 47 * Creates a GrContext for a backend context. |
49 */ | 48 */ |
50 static GrContext* Create(GrBackend, GrBackendContext); | 49 static GrContext* Create(GrBackend, GrBackendContext); |
51 | 50 |
52 /** | 51 /** |
53 * Returns the number of GrContext instances for the current thread. | 52 * Returns the number of GrContext instances for the current thread. |
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628 */ | 627 */ |
629 void resolveRenderTarget(GrRenderTarget* target); | 628 void resolveRenderTarget(GrRenderTarget* target); |
630 | 629 |
631 /////////////////////////////////////////////////////////////////////////// | 630 /////////////////////////////////////////////////////////////////////////// |
632 // Helpers | 631 // Helpers |
633 | 632 |
634 class AutoRenderTarget : public ::GrNoncopyable { | 633 class AutoRenderTarget : public ::GrNoncopyable { |
635 public: | 634 public: |
636 AutoRenderTarget(GrContext* context, GrRenderTarget* target) { | 635 AutoRenderTarget(GrContext* context, GrRenderTarget* target) { |
637 fPrevTarget = context->getRenderTarget(); | 636 fPrevTarget = context->getRenderTarget(); |
638 GrSafeRef(fPrevTarget); | 637 SkSafeRef(fPrevTarget); |
639 context->setRenderTarget(target); | 638 context->setRenderTarget(target); |
640 fContext = context; | 639 fContext = context; |
641 } | 640 } |
642 AutoRenderTarget(GrContext* context) { | 641 AutoRenderTarget(GrContext* context) { |
643 fPrevTarget = context->getRenderTarget(); | 642 fPrevTarget = context->getRenderTarget(); |
644 GrSafeRef(fPrevTarget); | 643 SkSafeRef(fPrevTarget); |
645 fContext = context; | 644 fContext = context; |
646 } | 645 } |
647 ~AutoRenderTarget() { | 646 ~AutoRenderTarget() { |
648 if (NULL != fContext) { | 647 if (NULL != fContext) { |
649 fContext->setRenderTarget(fPrevTarget); | 648 fContext->setRenderTarget(fPrevTarget); |
650 } | 649 } |
651 GrSafeUnref(fPrevTarget); | 650 SkSafeUnref(fPrevTarget); |
652 } | 651 } |
653 private: | 652 private: |
654 GrContext* fContext; | 653 GrContext* fContext; |
655 GrRenderTarget* fPrevTarget; | 654 GrRenderTarget* fPrevTarget; |
656 }; | 655 }; |
657 | 656 |
658 /** | 657 /** |
659 * Save/restore the view-matrix in the context. It can optionally adjust a p
aint to account | 658 * Save/restore the view-matrix in the context. It can optionally adjust a p
aint to account |
660 * for a coordinate system change. Here is an example of how the paint param
can be used: | 659 * for a coordinate system change. Here is an example of how the paint param
can be used: |
661 * | 660 * |
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927 const GrEffectRef* createUPMToPMEffect(GrTexture* texture, | 926 const GrEffectRef* createUPMToPMEffect(GrTexture* texture, |
928 bool swapRAndB, | 927 bool swapRAndB, |
929 const SkMatrix& matrix); | 928 const SkMatrix& matrix); |
930 | 929 |
931 /** | 930 /** |
932 * This callback allows the resource cache to callback into the GrContext | 931 * This callback allows the resource cache to callback into the GrContext |
933 * when the cache is still overbudget after a purge. | 932 * when the cache is still overbudget after a purge. |
934 */ | 933 */ |
935 static bool OverbudgetCB(void* data); | 934 static bool OverbudgetCB(void* data); |
936 | 935 |
937 typedef GrRefCnt INHERITED; | 936 typedef SkRefCnt INHERITED; |
938 }; | 937 }; |
939 | 938 |
940 /** | 939 /** |
941 * Gets and locks a scratch texture from a descriptor using either exact or appr
oximate criteria. | 940 * Gets and locks a scratch texture from a descriptor using either exact or appr
oximate criteria. |
942 * Unlocks texture in the destructor. | 941 * Unlocks texture in the destructor. |
943 */ | 942 */ |
944 class GrAutoScratchTexture : ::GrNoncopyable { | 943 class GrAutoScratchTexture : ::GrNoncopyable { |
945 public: | 944 public: |
946 GrAutoScratchTexture() | 945 GrAutoScratchTexture() |
947 : fContext(NULL) | 946 : fContext(NULL) |
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1017 } | 1016 } |
1018 | 1017 |
1019 GrTexture* texture() { return fTexture; } | 1018 GrTexture* texture() { return fTexture; } |
1020 | 1019 |
1021 private: | 1020 private: |
1022 GrContext* fContext; | 1021 GrContext* fContext; |
1023 GrTexture* fTexture; | 1022 GrTexture* fTexture; |
1024 }; | 1023 }; |
1025 | 1024 |
1026 #endif | 1025 #endif |
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