robertphillips@google.com | f4c2c52 | 2012-04-27 12:08:47 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2012 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
| 9 | #include "GrSoftwarePathRenderer.h" |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 10 | #include "GrContext.h" |
robertphillips@google.com | 58b2021 | 2012-06-27 20:44:52 +0000 | [diff] [blame] | 11 | #include "GrSWMaskHelper.h" |
bsalomon | 72e3ae4 | 2015-04-28 08:08:46 -0700 | [diff] [blame] | 12 | #include "GrVertexBuffer.h" |
robertphillips@google.com | f4c2c52 | 2012-04-27 12:08:47 +0000 | [diff] [blame] | 13 | |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 14 | //////////////////////////////////////////////////////////////////////////////// |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 15 | bool GrSoftwarePathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const { |
robertphillips | 730c044 | 2014-07-25 05:52:38 -0700 | [diff] [blame] | 16 | if (NULL == fContext) { |
robertphillips@google.com | f4c2c52 | 2012-04-27 12:08:47 +0000 | [diff] [blame] | 17 | return false; |
| 18 | } |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 19 | if (args.fStroke->isDashed()) { |
kkinnunen | 1899651 | 2015-04-26 23:18:49 -0700 | [diff] [blame] | 20 | return false; |
| 21 | } |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 22 | return true; |
robertphillips@google.com | f4c2c52 | 2012-04-27 12:08:47 +0000 | [diff] [blame] | 23 | } |
| 24 | |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 25 | GrPathRenderer::StencilSupport |
| 26 | GrSoftwarePathRenderer::onGetStencilSupport(const GrDrawTarget*, |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 27 | const GrPipelineBuilder*, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 28 | const SkPath&, |
kkinnunen | 1899651 | 2015-04-26 23:18:49 -0700 | [diff] [blame] | 29 | const GrStrokeInfo&) const { |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 30 | return GrPathRenderer::kNoSupport_StencilSupport; |
| 31 | } |
| 32 | |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 33 | namespace { |
| 34 | |
| 35 | //////////////////////////////////////////////////////////////////////////////// |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 36 | // gets device coord bounds of path (not considering the fill) and clip. The |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 37 | // path bounds will be a subset of the clip bounds. returns false if |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 38 | // path bounds would be empty. |
| 39 | bool get_path_and_clip_bounds(const GrDrawTarget* target, |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 40 | const GrPipelineBuilder* pipelineBuilder, |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 41 | const SkPath& path, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 42 | const SkMatrix& matrix, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 43 | SkIRect* devPathBounds, |
| 44 | SkIRect* devClipBounds) { |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 45 | // compute bounds as intersection of rt size, clip, and path |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 46 | const GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 47 | if (NULL == rt) { |
| 48 | return false; |
| 49 | } |
robertphillips@google.com | 3e11c0b | 2012-07-11 18:20:35 +0000 | [diff] [blame] | 50 | |
joshualitt | 44701df | 2015-02-23 14:44:57 -0800 | [diff] [blame] | 51 | pipelineBuilder->clip().getConservativeBounds(rt, devClipBounds); |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 52 | |
robertphillips | e85a32d | 2015-02-10 08:16:55 -0800 | [diff] [blame] | 53 | if (devClipBounds->isEmpty()) { |
| 54 | *devPathBounds = SkIRect::MakeWH(rt->width(), rt->height()); |
robertphillips@google.com | 3e11c0b | 2012-07-11 18:20:35 +0000 | [diff] [blame] | 55 | return false; |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 56 | } |
robertphillips@google.com | 3e11c0b | 2012-07-11 18:20:35 +0000 | [diff] [blame] | 57 | |
robertphillips@google.com | 366f1c6 | 2012-06-29 21:38:47 +0000 | [diff] [blame] | 58 | if (!path.getBounds().isEmpty()) { |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 59 | SkRect pathSBounds; |
robertphillips@google.com | 366f1c6 | 2012-06-29 21:38:47 +0000 | [diff] [blame] | 60 | matrix.mapRect(&pathSBounds, path.getBounds()); |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 61 | SkIRect pathIBounds; |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 62 | pathSBounds.roundOut(&pathIBounds); |
robertphillips | e85a32d | 2015-02-10 08:16:55 -0800 | [diff] [blame] | 63 | *devPathBounds = *devClipBounds; |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 64 | if (!devPathBounds->intersect(pathIBounds)) { |
bsalomon@google.com | 276c1fa | 2012-06-19 13:22:45 +0000 | [diff] [blame] | 65 | // set the correct path bounds, as this would be used later. |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 66 | *devPathBounds = pathIBounds; |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 67 | return false; |
| 68 | } |
| 69 | } else { |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 70 | *devPathBounds = SkIRect::EmptyIRect(); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 71 | return false; |
| 72 | } |
| 73 | return true; |
| 74 | } |
| 75 | |
| 76 | //////////////////////////////////////////////////////////////////////////////// |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 77 | void draw_around_inv_path(GrDrawTarget* target, |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 78 | GrPipelineBuilder* pipelineBuilder, |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 79 | GrColor color, |
joshualitt | 8059eb9 | 2014-12-29 15:10:07 -0800 | [diff] [blame] | 80 | const SkMatrix& viewMatrix, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 81 | const SkIRect& devClipBounds, |
| 82 | const SkIRect& devPathBounds) { |
joshualitt | d27f73e | 2014-12-29 07:43:36 -0800 | [diff] [blame] | 83 | SkMatrix invert; |
joshualitt | 8059eb9 | 2014-12-29 15:10:07 -0800 | [diff] [blame] | 84 | if (!viewMatrix.invert(&invert)) { |
bsalomon@google.com | e3d3216 | 2012-07-20 13:37:06 +0000 | [diff] [blame] | 85 | return; |
| 86 | } |
joshualitt | d27f73e | 2014-12-29 07:43:36 -0800 | [diff] [blame] | 87 | |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 88 | SkRect rect; |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 89 | if (devClipBounds.fTop < devPathBounds.fTop) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 90 | rect.iset(devClipBounds.fLeft, devClipBounds.fTop, |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 91 | devClipBounds.fRight, devPathBounds.fTop); |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 92 | target->drawBWRect(*pipelineBuilder, color, SkMatrix::I(), rect, NULL, &invert); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 93 | } |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 94 | if (devClipBounds.fLeft < devPathBounds.fLeft) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 95 | rect.iset(devClipBounds.fLeft, devPathBounds.fTop, |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 96 | devPathBounds.fLeft, devPathBounds.fBottom); |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 97 | target->drawBWRect(*pipelineBuilder, color, SkMatrix::I(), rect, NULL, &invert); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 98 | } |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 99 | if (devClipBounds.fRight > devPathBounds.fRight) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 100 | rect.iset(devPathBounds.fRight, devPathBounds.fTop, |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 101 | devClipBounds.fRight, devPathBounds.fBottom); |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 102 | target->drawBWRect(*pipelineBuilder, color, SkMatrix::I(), rect, NULL, &invert); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 103 | } |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 104 | if (devClipBounds.fBottom > devPathBounds.fBottom) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 105 | rect.iset(devClipBounds.fLeft, devPathBounds.fBottom, |
robertphillips@google.com | 7b11289 | 2012-07-31 15:18:21 +0000 | [diff] [blame] | 106 | devClipBounds.fRight, devClipBounds.fBottom); |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 107 | target->drawBWRect(*pipelineBuilder, color, SkMatrix::I(), rect, NULL, &invert); |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 108 | } |
| 109 | } |
| 110 | |
| 111 | } |
| 112 | |
| 113 | //////////////////////////////////////////////////////////////////////////////// |
| 114 | // return true on success; false on failure |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 115 | bool GrSoftwarePathRenderer::onDrawPath(const DrawPathArgs& args) { |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 116 | if (NULL == fContext) { |
| 117 | return false; |
| 118 | } |
| 119 | |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 120 | SkIRect devPathBounds, devClipBounds; |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 121 | if (!get_path_and_clip_bounds(args.fTarget, args.fPipelineBuilder, *args.fPath, |
| 122 | *args.fViewMatrix, &devPathBounds, &devClipBounds)) { |
| 123 | if (args.fPath->isInverseFillType()) { |
| 124 | draw_around_inv_path(args.fTarget, args.fPipelineBuilder, args.fColor, |
| 125 | *args.fViewMatrix, devClipBounds, devPathBounds); |
bsalomon@google.com | 276c1fa | 2012-06-19 13:22:45 +0000 | [diff] [blame] | 126 | } |
| 127 | return true; |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 128 | } |
robertphillips@google.com | 366f1c6 | 2012-06-29 21:38:47 +0000 | [diff] [blame] | 129 | |
robertphillips@google.com | 5dfb672 | 2012-07-09 16:32:28 +0000 | [diff] [blame] | 130 | SkAutoTUnref<GrTexture> texture( |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 131 | GrSWMaskHelper::DrawPathMaskToTexture(fContext, *args.fPath, *args.fStroke, |
sugoi@google.com | 12b4e27 | 2012-12-06 20:13:11 +0000 | [diff] [blame] | 132 | devPathBounds, |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 133 | args.fAntiAlias, args.fViewMatrix)); |
robertphillips@google.com | 5dfb672 | 2012-07-09 16:32:28 +0000 | [diff] [blame] | 134 | if (NULL == texture) { |
| 135 | return false; |
robertphillips@google.com | ed4155d | 2012-05-01 14:30:24 +0000 | [diff] [blame] | 136 | } |
| 137 | |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 138 | GrSWMaskHelper::DrawToTargetWithPathMask(texture, args.fTarget, args.fPipelineBuilder, |
| 139 | args.fColor, *args.fViewMatrix, devPathBounds); |
robertphillips@google.com | 5dfb672 | 2012-07-09 16:32:28 +0000 | [diff] [blame] | 140 | |
bsalomon | 0aff2fa | 2015-07-31 06:48:27 -0700 | [diff] [blame^] | 141 | if (args.fPath->isInverseFillType()) { |
| 142 | draw_around_inv_path(args.fTarget, args.fPipelineBuilder, args.fColor, *args.fViewMatrix, |
| 143 | devClipBounds, devPathBounds); |
robertphillips@google.com | 5dfb672 | 2012-07-09 16:32:28 +0000 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | return true; |
robertphillips@google.com | f4c2c52 | 2012-04-27 12:08:47 +0000 | [diff] [blame] | 147 | } |