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| 1 /* | |
| 2 * Copyright 2016 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrPathStencilSettings_DEFINED | |
| 9 #define GrPathStencilSettings_DEFINED | |
| 10 | |
| 11 ////// Even/Odd | |
| 12 | |
| 13 GR_STATIC_CONST_SAME_STENCIL(gEOStencilPass, | |
| 14 kInvert_StencilOp, | |
| 15 kKeep_StencilOp, | |
| 16 kAlwaysIfInClip_StencilFunc, | |
| 17 0xffff, | |
| 18 0xffff, | |
| 19 0xffff); | |
| 20 | |
| 21 // ok not to check clip b/c stencil pass only wrote inside clip | |
| 22 GR_STATIC_CONST_SAME_STENCIL(gEOColorPass, | |
| 23 kZero_StencilOp, | |
| 24 kZero_StencilOp, | |
| 25 kNotEqual_StencilFunc, | |
| 26 0xffff, | |
| 27 0x0000, | |
| 28 0xffff); | |
| 29 | |
| 30 // have to check clip b/c outside clip will always be zero. | |
| 31 GR_STATIC_CONST_SAME_STENCIL(gInvEOColorPass, | |
| 32 kZero_StencilOp, | |
| 33 kZero_StencilOp, | |
| 34 kEqualIfInClip_StencilFunc, | |
| 35 0xffff, | |
| 36 0x0000, | |
| 37 0xffff); | |
| 38 | |
| 39 ////// Winding | |
| 40 | |
| 41 // when we have separate stencil we increment front faces / decrement back faces | |
| 42 // when we don't have wrap incr and decr we use the stencil test to simulate | |
| 43 // them. | |
| 44 | |
| 45 GR_STATIC_CONST_STENCIL(gWindStencilSeparateWithWrap, | |
| 46 kIncWrap_StencilOp, kDecWrap_StencilOp, | |
| 47 kKeep_StencilOp, kKeep_StencilOp, | |
| 48 kAlwaysIfInClip_StencilFunc, kAlwaysIfInClip_StencilFunc, | |
| 49 0xffff, 0xffff, | |
| 50 0xffff, 0xffff, | |
| 51 0xffff, 0xffff); | |
| 52 | |
| 53 // if inc'ing the max value, invert to make 0 | |
| 54 // if dec'ing zero invert to make all ones. | |
| 55 // we can't avoid touching the stencil on both passing and | |
| 56 // failing, so we can't resctrict ourselves to the clip. | |
| 57 GR_STATIC_CONST_STENCIL(gWindStencilSeparateNoWrap, | |
| 58 kInvert_StencilOp, kInvert_StencilOp, | |
| 59 kIncClamp_StencilOp, kDecClamp_StencilOp, | |
| 60 kEqual_StencilFunc, kEqual_StencilFunc, | |
| 61 0xffff, 0xffff, | |
| 62 0xffff, 0x0000, | |
| 63 0xffff, 0xffff); | |
| 64 | |
| 65 // When there are no separate faces we do two passes to setup the winding rule | |
| 66 // stencil. First we draw the front faces and inc, then we draw the back faces | |
| 67 // and dec. These are same as the above two split into the incrementing and | |
| 68 // decrementing passes. | |
| 69 GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilWithWrapInc, | |
| 70 kIncWrap_StencilOp, | |
| 71 kKeep_StencilOp, | |
| 72 kAlwaysIfInClip_StencilFunc, | |
| 73 0xffff, | |
| 74 0xffff, | |
| 75 0xffff); | |
| 76 | |
| 77 GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilWithWrapDec, | |
| 78 kDecWrap_StencilOp, | |
| 79 kKeep_StencilOp, | |
| 80 kAlwaysIfInClip_StencilFunc, | |
| 81 0xffff, | |
| 82 0xffff, | |
| 83 0xffff); | |
| 84 | |
| 85 GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilNoWrapInc, | |
| 86 kInvert_StencilOp, | |
| 87 kIncClamp_StencilOp, | |
| 88 kEqual_StencilFunc, | |
| 89 0xffff, | |
| 90 0xffff, | |
| 91 0xffff); | |
| 92 | |
| 93 GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilNoWrapDec, | |
| 94 kInvert_StencilOp, | |
| 95 kDecClamp_StencilOp, | |
| 96 kEqual_StencilFunc, | |
| 97 0xffff, | |
| 98 0x0000, | |
| 99 0xffff); | |
| 100 | |
| 101 // Color passes are the same whether we use the two-sided stencil or two passes | |
| 102 | |
| 103 GR_STATIC_CONST_SAME_STENCIL(gWindColorPass, | |
| 104 kZero_StencilOp, | |
| 105 kZero_StencilOp, | |
| 106 kNonZeroIfInClip_StencilFunc, | |
| 107 0xffff, | |
| 108 0x0000, | |
| 109 0xffff); | |
| 110 | |
| 111 GR_STATIC_CONST_SAME_STENCIL(gInvWindColorPass, | |
| 112 kZero_StencilOp, | |
| 113 kZero_StencilOp, | |
| 114 kEqualIfInClip_StencilFunc, | |
| 115 0xffff, | |
| 116 0x0000, | |
| 117 0xffff); | |
| 118 | |
| 119 ////// Normal render to stencil | |
| 120 | |
| 121 // Sometimes the default path renderer can draw a path directly to the stencil | |
| 122 // buffer without having to first resolve the interior / exterior. | |
| 123 GR_STATIC_CONST_SAME_STENCIL(gDirectToStencil, | |
| 124 kZero_StencilOp, | |
| 125 kIncClamp_StencilOp, | |
| 126 kAlwaysIfInClip_StencilFunc, | |
| 127 0xffff, | |
| 128 0x0000, | |
| 129 0xffff); | |
| 130 | |
| 131 #endif | |
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Chromium Code Reviews
Issue 1860563002:
Revert of added GrMSAAPathRenderer (Closed)
Base URL: https://skia.googlesource.com/skia.git@master