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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 |
| (...skipping 21 matching lines...) Expand all Loading... |
| 32 class GrOvalRenderer; | 32 class GrOvalRenderer; |
| 33 class GrPath; | 33 class GrPath; |
| 34 class GrPathRenderer; | 34 class GrPathRenderer; |
| 35 class GrResourceEntry; | 35 class GrResourceEntry; |
| 36 class GrResourceCache; | 36 class GrResourceCache; |
| 37 class GrStencilBuffer; | 37 class GrStencilBuffer; |
| 38 class GrTestTarget; | 38 class GrTestTarget; |
| 39 class GrTextureParams; | 39 class GrTextureParams; |
| 40 class GrVertexBuffer; | 40 class GrVertexBuffer; |
| 41 class GrVertexBufferAllocPool; | 41 class GrVertexBufferAllocPool; |
| 42 class GrStrokeInfo; |
| 42 class GrSoftwarePathRenderer; | 43 class GrSoftwarePathRenderer; |
| 43 class SkStrokeRec; | 44 class SkStrokeRec; |
| 44 | 45 |
| 45 class SK_API GrContext : public SkRefCnt { | 46 class SK_API GrContext : public SkRefCnt { |
| 46 public: | 47 public: |
| 47 SK_DECLARE_INST_COUNT(GrContext) | 48 SK_DECLARE_INST_COUNT(GrContext) |
| 48 | 49 |
| 49 /** | 50 /** |
| 50 * Creates a GrContext for a backend context. | 51 * Creates a GrContext for a backend context. |
| 51 */ | 52 */ |
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| 445 GrRenderTarget* target = NULL); | 446 GrRenderTarget* target = NULL); |
| 446 | 447 |
| 447 /** | 448 /** |
| 448 * Draw everywhere (respecting the clip) with the paint. | 449 * Draw everywhere (respecting the clip) with the paint. |
| 449 */ | 450 */ |
| 450 void drawPaint(const GrPaint& paint); | 451 void drawPaint(const GrPaint& paint); |
| 451 | 452 |
| 452 /** | 453 /** |
| 453 * Draw the rect using a paint. | 454 * Draw the rect using a paint. |
| 454 * @param paint describes how to color pixels. | 455 * @param paint describes how to color pixels. |
| 455 * @param stroke the stroke information (width, join, cap). | 456 * @param strokeInfo the stroke information (width, join, cap), and. |
| 456 * If stroke == NULL, then the rect is filled. | 457 * the dash information (intervals, count, phase). |
| 458 * If strokeInfo == NULL, then the rect is filled. |
| 457 * Otherwise, if stroke width == 0, then the stroke | 459 * Otherwise, if stroke width == 0, then the stroke |
| 458 * is always a single pixel thick, else the rect is | 460 * is always a single pixel thick, else the rect is |
| 459 * mitered/beveled stroked based on stroke width. | 461 * mitered/beveled stroked based on stroke width. |
| 462 * If the stroke is dashed the rect is sent to drawPath
. |
| 460 * @param matrix Optional matrix applied to the rect. Applied before | 463 * @param matrix Optional matrix applied to the rect. Applied before |
| 461 * context's matrix or the paint's matrix. | 464 * context's matrix or the paint's matrix. |
| 462 * The rects coords are used to access the paint (through texture matrix) | 465 * The rects coords are used to access the paint (through texture matrix) |
| 463 */ | 466 */ |
| 464 void drawRect(const GrPaint& paint, | 467 void drawRect(const GrPaint& paint, |
| 465 const SkRect&, | 468 const SkRect&, |
| 466 const SkStrokeRec* stroke = NULL, | 469 const GrStrokeInfo* strokeInfo = NULL, |
| 467 const SkMatrix* matrix = NULL); | 470 const SkMatrix* matrix = NULL); |
| 468 | 471 |
| 469 /** | 472 /** |
| 470 * Maps a rect of local coordinates onto the a rect of destination | 473 * Maps a rect of local coordinates onto the a rect of destination |
| 471 * coordinates. Each rect can optionally be transformed. The localRect | 474 * coordinates. Each rect can optionally be transformed. The localRect |
| 472 * is stretched over the dstRect. The dstRect is transformed by the | 475 * is stretched over the dstRect. The dstRect is transformed by the |
| 473 * context's matrix. Additional optional matrices for both rects can be | 476 * context's matrix. Additional optional matrices for both rects can be |
| 474 * provided by parameters. | 477 * provided by parameters. |
| 475 * | 478 * |
| 476 * @param paint describes how to color pixels. | 479 * @param paint describes how to color pixels. |
| 477 * @param dstRect the destination rect to draw. | 480 * @param dstRect the destination rect to draw. |
| 478 * @param localRect rect of local coordinates to be mapped onto dstRect | 481 * @param localRect rect of local coordinates to be mapped onto dstRect |
| 479 * @param dstMatrix Optional matrix to transform dstRect. Applied before
context's matrix. | 482 * @param dstMatrix Optional matrix to transform dstRect. Applied before
context's matrix. |
| 480 * @param localMatrix Optional matrix to transform localRect. | 483 * @param localMatrix Optional matrix to transform localRect. |
| 481 */ | 484 */ |
| 482 void drawRectToRect(const GrPaint& paint, | 485 void drawRectToRect(const GrPaint& paint, |
| 483 const SkRect& dstRect, | 486 const SkRect& dstRect, |
| 484 const SkRect& localRect, | 487 const SkRect& localRect, |
| 485 const SkMatrix* dstMatrix = NULL, | 488 const SkMatrix* dstMatrix = NULL, |
| 486 const SkMatrix* localMatrix = NULL); | 489 const SkMatrix* localMatrix = NULL); |
| 487 | 490 |
| 488 /** | 491 /** |
| 489 * Draw a roundrect using a paint. | 492 * Draw a roundrect using a paint. |
| 490 * | 493 * |
| 491 * @param paint describes how to color pixels. | 494 * @param paint describes how to color pixels. |
| 492 * @param rrect the roundrect to draw | 495 * @param rrect the roundrect to draw |
| 493 * @param stroke the stroke information (width, join, cap) | 496 * @param strokeInfo the stroke information (width, join, cap) and |
| 497 * the dash information (intervals, count, phase). |
| 494 */ | 498 */ |
| 495 void drawRRect(const GrPaint& paint, const SkRRect& rrect, const SkStrokeRec
& stroke); | 499 void drawRRect(const GrPaint& paint, const SkRRect& rrect, const GrStrokeInf
o& strokeInfo); |
| 496 | 500 |
| 497 /** | 501 /** |
| 498 * Shortcut for drawing an SkPath consisting of nested rrects using a paint
. | 502 * Shortcut for drawing an SkPath consisting of nested rrects using a paint
. |
| 499 * Does not support stroking. The result is undefined if outer does not con
tain | 503 * Does not support stroking. The result is undefined if outer does not con
tain |
| 500 * inner. | 504 * inner. |
| 501 * | 505 * |
| 502 * @param paint describes how to color pixels. | 506 * @param paint describes how to color pixels. |
| 503 * @param outer the outer roundrect | 507 * @param outer the outer roundrect |
| 504 * @param inner the inner roundrect | 508 * @param inner the inner roundrect |
| 505 */ | 509 */ |
| 506 void drawDRRect(const GrPaint& paint, const SkRRect& outer, const SkRRect& i
nner); | 510 void drawDRRect(const GrPaint& paint, const SkRRect& outer, const SkRRect& i
nner); |
| 507 | 511 |
| 508 | 512 |
| 509 /** | 513 /** |
| 510 * Draws a path. | 514 * Draws a path. |
| 511 * | 515 * |
| 512 * @param paint describes how to color pixels. | 516 * @param paint describes how to color pixels. |
| 513 * @param path the path to draw | 517 * @param path the path to draw |
| 514 * @param stroke the stroke information (width, join, cap) | 518 * @param strokeInfo the stroke information (width, join, cap) and |
| 519 * the dash information (intervals, count, phase). |
| 515 */ | 520 */ |
| 516 void drawPath(const GrPaint& paint, const SkPath& path, const SkStrokeRec& s
troke); | 521 void drawPath(const GrPaint& paint, const SkPath& path, const GrStrokeInfo&
strokeInfo); |
| 517 | 522 |
| 518 /** | 523 /** |
| 519 * Draws vertices with a paint. | 524 * Draws vertices with a paint. |
| 520 * | 525 * |
| 521 * @param paint describes how to color pixels. | 526 * @param paint describes how to color pixels. |
| 522 * @param primitiveType primitives type to draw. | 527 * @param primitiveType primitives type to draw. |
| 523 * @param vertexCount number of vertices. | 528 * @param vertexCount number of vertices. |
| 524 * @param positions array of vertex positions, required. | 529 * @param positions array of vertex positions, required. |
| 525 * @param texCoords optional array of texture coordinates used | 530 * @param texCoords optional array of texture coordinates used |
| 526 * to access the paint. | 531 * to access the paint. |
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| 538 const SkPoint texs[], | 543 const SkPoint texs[], |
| 539 const GrColor colors[], | 544 const GrColor colors[], |
| 540 const uint16_t indices[], | 545 const uint16_t indices[], |
| 541 int indexCount); | 546 int indexCount); |
| 542 | 547 |
| 543 /** | 548 /** |
| 544 * Draws an oval. | 549 * Draws an oval. |
| 545 * | 550 * |
| 546 * @param paint describes how to color pixels. | 551 * @param paint describes how to color pixels. |
| 547 * @param oval the bounding rect of the oval. | 552 * @param oval the bounding rect of the oval. |
| 548 * @param stroke the stroke information (width, style) | 553 * @param strokeInfo the stroke information (width, join, cap) and |
| 554 * the dash information (intervals, count, phase). |
| 549 */ | 555 */ |
| 550 void drawOval(const GrPaint& paint, | 556 void drawOval(const GrPaint& paint, |
| 551 const SkRect& oval, | 557 const SkRect& oval, |
| 552 const SkStrokeRec& stroke); | 558 const GrStrokeInfo& strokeInfo); |
| 553 | 559 |
| 554 /////////////////////////////////////////////////////////////////////////// | 560 /////////////////////////////////////////////////////////////////////////// |
| 555 // Misc. | 561 // Misc. |
| 556 | 562 |
| 557 /** | 563 /** |
| 558 * Flags that affect flush() behavior. | 564 * Flags that affect flush() behavior. |
| 559 */ | 565 */ |
| 560 enum FlushBits { | 566 enum FlushBits { |
| 561 /** | 567 /** |
| 562 * A client may reach a point where it has partially rendered a frame | 568 * A client may reach a point where it has partially rendered a frame |
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| 988 | 994 |
| 989 void setupDrawBuffer(); | 995 void setupDrawBuffer(); |
| 990 | 996 |
| 991 class AutoRestoreEffects; | 997 class AutoRestoreEffects; |
| 992 class AutoCheckFlush; | 998 class AutoCheckFlush; |
| 993 /// Sets the paint and returns the target to draw into. The paint can be NUL
L in which case the | 999 /// Sets the paint and returns the target to draw into. The paint can be NUL
L in which case the |
| 994 /// draw state is left unmodified. | 1000 /// draw state is left unmodified. |
| 995 GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw, AutoRestoreEffects
*, AutoCheckFlush*); | 1001 GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw, AutoRestoreEffects
*, AutoCheckFlush*); |
| 996 | 1002 |
| 997 void internalDrawPath(GrDrawTarget* target, bool useAA, const SkPath& path, | 1003 void internalDrawPath(GrDrawTarget* target, bool useAA, const SkPath& path, |
| 998 const SkStrokeRec& stroke); | 1004 const GrStrokeInfo& stroke); |
| 999 | 1005 |
| 1000 GrTexture* createResizedTexture(const GrTextureDesc& desc, | 1006 GrTexture* createResizedTexture(const GrTextureDesc& desc, |
| 1001 const GrCacheID& cacheID, | 1007 const GrCacheID& cacheID, |
| 1002 const void* srcData, | 1008 const void* srcData, |
| 1003 size_t rowBytes, | 1009 size_t rowBytes, |
| 1004 bool filter); | 1010 bool filter); |
| 1005 | 1011 |
| 1006 // Needed so GrTexture's returnToCache helper function can call | 1012 // Needed so GrTexture's returnToCache helper function can call |
| 1007 // addExistingTextureToCache | 1013 // addExistingTextureToCache |
| 1008 friend class GrTexture; | 1014 friend class GrTexture; |
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| 1122 } | 1128 } |
| 1123 | 1129 |
| 1124 GrTexture* texture() { return fTexture; } | 1130 GrTexture* texture() { return fTexture; } |
| 1125 | 1131 |
| 1126 private: | 1132 private: |
| 1127 GrContext* fContext; | 1133 GrContext* fContext; |
| 1128 GrTexture* fTexture; | 1134 GrTexture* fTexture; |
| 1129 }; | 1135 }; |
| 1130 | 1136 |
| 1131 #endif | 1137 #endif |
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