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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrPipelineBuilder_DEFINED | 8 #ifndef GrPipelineBuilder_DEFINED |
9 #define GrPipelineBuilder_DEFINED | 9 #define GrPipelineBuilder_DEFINED |
10 | 10 |
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43 * Initializes the GrPipelineBuilder based on a GrPaint, view matrix and ren der target. Note | 43 * Initializes the GrPipelineBuilder based on a GrPaint, view matrix and ren der target. Note |
44 * that GrPipelineBuilder encompasses more than GrPaint. Aspects of GrPipeli neBuilder that have | 44 * that GrPipelineBuilder encompasses more than GrPaint. Aspects of GrPipeli neBuilder that have |
45 * no GrPaint equivalents are set to default values with the exception of ve rtex attribute state | 45 * no GrPaint equivalents are set to default values with the exception of ve rtex attribute state |
46 * which is unmodified by this function and clipping which will be enabled. | 46 * which is unmodified by this function and clipping which will be enabled. |
47 */ | 47 */ |
48 void setFromPaint(const GrPaint&, GrRenderTarget*); | 48 void setFromPaint(const GrPaint&, GrRenderTarget*); |
49 | 49 |
50 /// @} | 50 /// @} |
51 | 51 |
52 /** | 52 /** |
53 * Depending on features available in the underlying 3D API and the color bl end mode requested | |
54 * it may or may not be possible to correctly blend with fractional pixel co verage generated by | |
55 * the fragment shader. | |
56 * | |
57 * This function considers the current GrPipelineBuilder and the draw target 's capabilities to | |
58 * determine whether coverage can be handled correctly. This function assume s that the caller | |
59 * intends to specify fractional pixel coverage via a primitive processor bu t may not have | |
60 * specified it yet. | |
61 */ | |
62 bool canUseFracCoveragePrimProc(GrColor color, const GrDrawTargetCaps& caps) const; | |
bsalomon
2015/02/11 15:54:17
awww, im gonna miss this guy.
| |
63 | |
64 /** | |
65 * This function returns true if the render target destination pixel values will be read for | 53 * This function returns true if the render target destination pixel values will be read for |
66 * blending during draw. | 54 * blending during draw. |
67 */ | 55 */ |
68 bool willBlendWithDst(const GrPrimitiveProcessor*) const; | 56 bool willBlendWithDst(const GrPrimitiveProcessor*) const; |
69 | 57 |
70 /////////////////////////////////////////////////////////////////////////// | 58 /////////////////////////////////////////////////////////////////////////// |
71 /// @name Effect Stages | 59 /// @name Effect Stages |
72 /// Each stage hosts a GrProcessor. The effect produces an output color or c overage in the | 60 /// Each stage hosts a GrProcessor. The effect produces an output color or c overage in the |
73 /// fragment shader. Its inputs are the output from the previous stage as we ll as some variables | 61 /// fragment shader. Its inputs are the output from the previous stage as we ll as some variables |
74 /// available to it in the fragment and vertex shader (e.g. the vertex posit ion, the dst color, | 62 /// available to it in the fragment and vertex shader (e.g. the vertex posit ion, the dst color, |
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462 mutable GrProcOptInfo fCoverageProcInfo; | 450 mutable GrProcOptInfo fCoverageProcInfo; |
463 mutable bool fColorProcInfoValid; | 451 mutable bool fColorProcInfoValid; |
464 mutable bool fCoverageProcInfoValid; | 452 mutable bool fCoverageProcInfoValid; |
465 mutable GrColor fColorCache; | 453 mutable GrColor fColorCache; |
466 mutable GrColor fCoverageCache; | 454 mutable GrColor fCoverageCache; |
467 | 455 |
468 friend class GrPipeline; | 456 friend class GrPipeline; |
469 }; | 457 }; |
470 | 458 |
471 #endif | 459 #endif |
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