robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 | #include "GrAARectRenderer.h" |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 9 | #include "GrDefaultGeoProcFactory.h" |
| 10 | #include "GrGeometryProcessor.h" |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 11 | #include "GrGpu.h" |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 12 | #include "GrInvariantOutput.h" |
robertphillips@google.com | 908aed8 | 2013-05-28 13:16:20 +0000 | [diff] [blame] | 13 | #include "SkColorPriv.h" |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 14 | #include "gl/GrGLProcessor.h" |
| 15 | #include "gl/GrGLGeometryProcessor.h" |
| 16 | #include "gl/builders/GrGLProgramBuilder.h" |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 17 | |
robertphillips@google.com | b19cb7f | 2013-05-02 15:37:20 +0000 | [diff] [blame] | 18 | /////////////////////////////////////////////////////////////////////////////// |
robertphillips@google.com | df3695e | 2013-04-09 14:01:44 +0000 | [diff] [blame] | 19 | |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 20 | namespace { |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 21 | // Should the coverage be multiplied into the color attrib or use a separate attrib. |
| 22 | enum CoverageAttribType { |
| 23 | kUseColor_CoverageAttribType, |
| 24 | kUseCoverage_CoverageAttribType, |
| 25 | }; |
| 26 | } |
| 27 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 28 | static const GrGeometryProcessor* create_rect_gp(const GrDrawState& drawState, GrColor color, |
| 29 | CoverageAttribType* type) { |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 30 | uint32_t flags = GrDefaultGeoProcFactory::kColor_GPType; |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 31 | const GrGeometryProcessor* gp; |
| 32 | if (drawState.canTweakAlphaForCoverage()) { |
| 33 | gp = GrDefaultGeoProcFactory::Create(color, flags); |
| 34 | SkASSERT(gp->getVertexStride() == sizeof(GrDefaultGeoProcFactory::PositionColorAttr)); |
| 35 | *type = kUseColor_CoverageAttribType; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 36 | } else { |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 37 | flags |= GrDefaultGeoProcFactory::kCoverage_GPType; |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 38 | gp = GrDefaultGeoProcFactory::Create(color, flags, GrColorIsOpaque(color)); |
| 39 | SkASSERT(gp->getVertexStride()==sizeof(GrDefaultGeoProcFactory::PositionColorCoverageAttr)); |
| 40 | *type = kUseCoverage_CoverageAttribType; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 41 | } |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 42 | return gp; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 43 | } |
| 44 | |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 45 | static void set_inset_fan(SkPoint* pts, size_t stride, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 46 | const SkRect& r, SkScalar dx, SkScalar dy) { |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 47 | pts->setRectFan(r.fLeft + dx, r.fTop + dy, |
| 48 | r.fRight - dx, r.fBottom - dy, stride); |
| 49 | } |
| 50 | |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 51 | void GrAARectRenderer::reset() { |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 52 | SkSafeSetNull(fAAFillRectIndexBuffer); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 53 | SkSafeSetNull(fAAMiterStrokeRectIndexBuffer); |
| 54 | SkSafeSetNull(fAABevelStrokeRectIndexBuffer); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 55 | } |
| 56 | |
robertphillips@google.com | 6d06730 | 2012-12-18 21:47:47 +0000 | [diff] [blame] | 57 | static const uint16_t gFillAARectIdx[] = { |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 58 | 0, 1, 5, 5, 4, 0, |
| 59 | 1, 2, 6, 6, 5, 1, |
| 60 | 2, 3, 7, 7, 6, 2, |
| 61 | 3, 0, 4, 4, 7, 3, |
| 62 | 4, 5, 6, 6, 7, 4, |
| 63 | }; |
| 64 | |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 65 | static const int kIndicesPerAAFillRect = SK_ARRAY_COUNT(gFillAARectIdx); |
robertphillips@google.com | 6d06730 | 2012-12-18 21:47:47 +0000 | [diff] [blame] | 66 | static const int kVertsPerAAFillRect = 8; |
| 67 | static const int kNumAAFillRectsInIndexBuffer = 256; |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 68 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 69 | static const uint16_t gMiterStrokeAARectIdx[] = { |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 70 | 0 + 0, 1 + 0, 5 + 0, 5 + 0, 4 + 0, 0 + 0, |
| 71 | 1 + 0, 2 + 0, 6 + 0, 6 + 0, 5 + 0, 1 + 0, |
| 72 | 2 + 0, 3 + 0, 7 + 0, 7 + 0, 6 + 0, 2 + 0, |
| 73 | 3 + 0, 0 + 0, 4 + 0, 4 + 0, 7 + 0, 3 + 0, |
| 74 | |
| 75 | 0 + 4, 1 + 4, 5 + 4, 5 + 4, 4 + 4, 0 + 4, |
| 76 | 1 + 4, 2 + 4, 6 + 4, 6 + 4, 5 + 4, 1 + 4, |
| 77 | 2 + 4, 3 + 4, 7 + 4, 7 + 4, 6 + 4, 2 + 4, |
| 78 | 3 + 4, 0 + 4, 4 + 4, 4 + 4, 7 + 4, 3 + 4, |
| 79 | |
| 80 | 0 + 8, 1 + 8, 5 + 8, 5 + 8, 4 + 8, 0 + 8, |
| 81 | 1 + 8, 2 + 8, 6 + 8, 6 + 8, 5 + 8, 1 + 8, |
| 82 | 2 + 8, 3 + 8, 7 + 8, 7 + 8, 6 + 8, 2 + 8, |
| 83 | 3 + 8, 0 + 8, 4 + 8, 4 + 8, 7 + 8, 3 + 8, |
| 84 | }; |
| 85 | |
joshualitt | 5ead6da | 2014-10-22 16:00:29 -0700 | [diff] [blame] | 86 | static const int kIndicesPerMiterStrokeRect = SK_ARRAY_COUNT(gMiterStrokeAARectIdx); |
| 87 | static const int kVertsPerMiterStrokeRect = 16; |
| 88 | static const int kNumMiterStrokeRectsInIndexBuffer = 256; |
| 89 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 90 | /** |
| 91 | * As in miter-stroke, index = a + b, and a is the current index, b is the shift |
| 92 | * from the first index. The index layout: |
| 93 | * outer AA line: 0~3, 4~7 |
| 94 | * outer edge: 8~11, 12~15 |
| 95 | * inner edge: 16~19 |
| 96 | * inner AA line: 20~23 |
| 97 | * Following comes a bevel-stroke rect and its indices: |
| 98 | * |
| 99 | * 4 7 |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 100 | * ********************************* |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 101 | * * ______________________________ * |
| 102 | * * / 12 15 \ * |
| 103 | * * / \ * |
| 104 | * 0 * |8 16_____________________19 11 | * 3 |
| 105 | * * | | | | * |
| 106 | * * | | **************** | | * |
| 107 | * * | | * 20 23 * | | * |
| 108 | * * | | * * | | * |
| 109 | * * | | * 21 22 * | | * |
| 110 | * * | | **************** | | * |
| 111 | * * | |____________________| | * |
| 112 | * 1 * |9 17 18 10| * 2 |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 113 | * * \ / * |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 114 | * * \13 __________________________14/ * |
| 115 | * * * |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 116 | * ********************************** |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 117 | * 5 6 |
| 118 | */ |
| 119 | static const uint16_t gBevelStrokeAARectIdx[] = { |
| 120 | // Draw outer AA, from outer AA line to outer edge, shift is 0. |
| 121 | 0 + 0, 1 + 0, 9 + 0, 9 + 0, 8 + 0, 0 + 0, |
| 122 | 1 + 0, 5 + 0, 13 + 0, 13 + 0, 9 + 0, 1 + 0, |
| 123 | 5 + 0, 6 + 0, 14 + 0, 14 + 0, 13 + 0, 5 + 0, |
| 124 | 6 + 0, 2 + 0, 10 + 0, 10 + 0, 14 + 0, 6 + 0, |
| 125 | 2 + 0, 3 + 0, 11 + 0, 11 + 0, 10 + 0, 2 + 0, |
| 126 | 3 + 0, 7 + 0, 15 + 0, 15 + 0, 11 + 0, 3 + 0, |
| 127 | 7 + 0, 4 + 0, 12 + 0, 12 + 0, 15 + 0, 7 + 0, |
| 128 | 4 + 0, 0 + 0, 8 + 0, 8 + 0, 12 + 0, 4 + 0, |
| 129 | |
| 130 | // Draw the stroke, from outer edge to inner edge, shift is 8. |
| 131 | 0 + 8, 1 + 8, 9 + 8, 9 + 8, 8 + 8, 0 + 8, |
| 132 | 1 + 8, 5 + 8, 9 + 8, |
| 133 | 5 + 8, 6 + 8, 10 + 8, 10 + 8, 9 + 8, 5 + 8, |
| 134 | 6 + 8, 2 + 8, 10 + 8, |
| 135 | 2 + 8, 3 + 8, 11 + 8, 11 + 8, 10 + 8, 2 + 8, |
| 136 | 3 + 8, 7 + 8, 11 + 8, |
| 137 | 7 + 8, 4 + 8, 8 + 8, 8 + 8, 11 + 8, 7 + 8, |
| 138 | 4 + 8, 0 + 8, 8 + 8, |
| 139 | |
| 140 | // Draw the inner AA, from inner edge to inner AA line, shift is 16. |
| 141 | 0 + 16, 1 + 16, 5 + 16, 5 + 16, 4 + 16, 0 + 16, |
| 142 | 1 + 16, 2 + 16, 6 + 16, 6 + 16, 5 + 16, 1 + 16, |
| 143 | 2 + 16, 3 + 16, 7 + 16, 7 + 16, 6 + 16, 2 + 16, |
| 144 | 3 + 16, 0 + 16, 4 + 16, 4 + 16, 7 + 16, 3 + 16, |
| 145 | }; |
| 146 | |
joshualitt | 5ead6da | 2014-10-22 16:00:29 -0700 | [diff] [blame] | 147 | static const int kIndicesPerBevelStrokeRect = SK_ARRAY_COUNT(gBevelStrokeAARectIdx); |
| 148 | static const int kVertsPerBevelStrokeRect = 24; |
| 149 | static const int kNumBevelStrokeRectsInIndexBuffer = 256; |
| 150 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 151 | static int aa_stroke_rect_index_count(bool miterStroke) { |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 152 | return miterStroke ? SK_ARRAY_COUNT(gMiterStrokeAARectIdx) : |
| 153 | SK_ARRAY_COUNT(gBevelStrokeAARectIdx); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 154 | } |
| 155 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 156 | GrIndexBuffer* GrAARectRenderer::aaStrokeRectIndexBuffer(bool miterStroke) { |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 157 | if (miterStroke) { |
| 158 | if (NULL == fAAMiterStrokeRectIndexBuffer) { |
| 159 | fAAMiterStrokeRectIndexBuffer = |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 160 | fGpu->createInstancedIndexBuffer(gMiterStrokeAARectIdx, |
| 161 | kIndicesPerMiterStrokeRect, |
| 162 | kNumMiterStrokeRectsInIndexBuffer, |
| 163 | kVertsPerMiterStrokeRect); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 164 | } |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 165 | return fAAMiterStrokeRectIndexBuffer; |
| 166 | } else { |
| 167 | if (NULL == fAABevelStrokeRectIndexBuffer) { |
| 168 | fAABevelStrokeRectIndexBuffer = |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 169 | fGpu->createInstancedIndexBuffer(gBevelStrokeAARectIdx, |
| 170 | kIndicesPerBevelStrokeRect, |
| 171 | kNumBevelStrokeRectsInIndexBuffer, |
| 172 | kVertsPerBevelStrokeRect); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 173 | } |
| 174 | return fAABevelStrokeRectIndexBuffer; |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 175 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 176 | } |
| 177 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 178 | void GrAARectRenderer::geometryFillAARect(GrDrawTarget* target, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 179 | GrDrawState* drawState, |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 180 | GrColor color, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 181 | const SkRect& rect, |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 182 | const SkMatrix& combinedMatrix, |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 183 | const SkRect& devRect) { |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 184 | GrDrawState::AutoRestoreEffects are(drawState); |
jvanverth@google.com | 9b855c7 | 2013-03-01 18:21:22 +0000 | [diff] [blame] | 185 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 186 | CoverageAttribType type; |
| 187 | SkAutoTUnref<const GrGeometryProcessor> gp(create_rect_gp(*drawState, color, &type)); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 188 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 189 | size_t vertexStride = gp->getVertexStride(); |
| 190 | GrDrawTarget::AutoReleaseGeometry geo(target, 8, vertexStride, 0); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 191 | if (!geo.succeeded()) { |
tfarina | 38406c8 | 2014-10-31 07:11:12 -0700 | [diff] [blame] | 192 | SkDebugf("Failed to get space for vertices!\n"); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 193 | return; |
| 194 | } |
robertphillips@google.com | 6d06730 | 2012-12-18 21:47:47 +0000 | [diff] [blame] | 195 | |
joshualitt | 5ead6da | 2014-10-22 16:00:29 -0700 | [diff] [blame] | 196 | if (NULL == fAAFillRectIndexBuffer) { |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 197 | fAAFillRectIndexBuffer = fGpu->createInstancedIndexBuffer(gFillAARectIdx, |
| 198 | kIndicesPerAAFillRect, |
| 199 | kNumAAFillRectsInIndexBuffer, |
| 200 | kVertsPerAAFillRect); |
joshualitt | 5ead6da | 2014-10-22 16:00:29 -0700 | [diff] [blame] | 201 | } |
| 202 | GrIndexBuffer* indexBuffer = fAAFillRectIndexBuffer; |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 203 | if (NULL == indexBuffer) { |
tfarina | 38406c8 | 2014-10-31 07:11:12 -0700 | [diff] [blame] | 204 | SkDebugf("Failed to create index buffer!\n"); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 205 | return; |
| 206 | } |
| 207 | |
| 208 | intptr_t verts = reinterpret_cast<intptr_t>(geo.vertices()); |
| 209 | |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 210 | SkPoint* fan0Pos = reinterpret_cast<SkPoint*>(verts); |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 211 | SkPoint* fan1Pos = reinterpret_cast<SkPoint*>(verts + 4 * vertexStride); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 212 | |
robertphillips@google.com | 908aed8 | 2013-05-28 13:16:20 +0000 | [diff] [blame] | 213 | SkScalar inset = SkMinScalar(devRect.width(), SK_Scalar1); |
| 214 | inset = SK_ScalarHalf * SkMinScalar(inset, devRect.height()); |
| 215 | |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 216 | if (combinedMatrix.rectStaysRect()) { |
robertphillips@google.com | afd1cba | 2013-05-14 19:47:47 +0000 | [diff] [blame] | 217 | // Temporarily #if'ed out. We don't want to pass in the devRect but |
| 218 | // right now it is computed in GrContext::apply_aa_to_rect and we don't |
| 219 | // want to throw away the work |
| 220 | #if 0 |
robertphillips@google.com | 91b7116 | 2013-05-10 14:09:54 +0000 | [diff] [blame] | 221 | SkRect devRect; |
| 222 | combinedMatrix.mapRect(&devRect, rect); |
robertphillips@google.com | afd1cba | 2013-05-14 19:47:47 +0000 | [diff] [blame] | 223 | #endif |
robertphillips@google.com | 91b7116 | 2013-05-10 14:09:54 +0000 | [diff] [blame] | 224 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 225 | set_inset_fan(fan0Pos, vertexStride, devRect, -SK_ScalarHalf, -SK_ScalarHalf); |
| 226 | set_inset_fan(fan1Pos, vertexStride, devRect, inset, inset); |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 227 | } else { |
| 228 | // compute transformed (1, 0) and (0, 1) vectors |
| 229 | SkVector vec[2] = { |
| 230 | { combinedMatrix[SkMatrix::kMScaleX], combinedMatrix[SkMatrix::kMSkewY] }, |
| 231 | { combinedMatrix[SkMatrix::kMSkewX], combinedMatrix[SkMatrix::kMScaleY] } |
| 232 | }; |
| 233 | |
| 234 | vec[0].normalize(); |
| 235 | vec[0].scale(SK_ScalarHalf); |
| 236 | vec[1].normalize(); |
| 237 | vec[1].scale(SK_ScalarHalf); |
| 238 | |
robertphillips@google.com | 91b7116 | 2013-05-10 14:09:54 +0000 | [diff] [blame] | 239 | // create the rotated rect |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 240 | fan0Pos->setRectFan(rect.fLeft, rect.fTop, |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 241 | rect.fRight, rect.fBottom, vertexStride); |
| 242 | combinedMatrix.mapPointsWithStride(fan0Pos, vertexStride, 4); |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 243 | |
robertphillips@google.com | 91b7116 | 2013-05-10 14:09:54 +0000 | [diff] [blame] | 244 | // Now create the inset points and then outset the original |
| 245 | // rotated points |
| 246 | |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 247 | // TL |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 248 | *((SkPoint*)((intptr_t)fan1Pos + 0 * vertexStride)) = |
| 249 | *((SkPoint*)((intptr_t)fan0Pos + 0 * vertexStride)) + vec[0] + vec[1]; |
| 250 | *((SkPoint*)((intptr_t)fan0Pos + 0 * vertexStride)) -= vec[0] + vec[1]; |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 251 | // BL |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 252 | *((SkPoint*)((intptr_t)fan1Pos + 1 * vertexStride)) = |
| 253 | *((SkPoint*)((intptr_t)fan0Pos + 1 * vertexStride)) + vec[0] - vec[1]; |
| 254 | *((SkPoint*)((intptr_t)fan0Pos + 1 * vertexStride)) -= vec[0] - vec[1]; |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 255 | // BR |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 256 | *((SkPoint*)((intptr_t)fan1Pos + 2 * vertexStride)) = |
| 257 | *((SkPoint*)((intptr_t)fan0Pos + 2 * vertexStride)) - vec[0] - vec[1]; |
| 258 | *((SkPoint*)((intptr_t)fan0Pos + 2 * vertexStride)) += vec[0] + vec[1]; |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 259 | // TR |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 260 | *((SkPoint*)((intptr_t)fan1Pos + 3 * vertexStride)) = |
| 261 | *((SkPoint*)((intptr_t)fan0Pos + 3 * vertexStride)) - vec[0] + vec[1]; |
| 262 | *((SkPoint*)((intptr_t)fan0Pos + 3 * vertexStride)) += vec[0] - vec[1]; |
robertphillips@google.com | 4b140b5 | 2013-05-02 17:13:13 +0000 | [diff] [blame] | 263 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 264 | |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 265 | // Make verts point to vertex color and then set all the color and coverage vertex attrs values. |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 266 | verts += sizeof(SkPoint); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 267 | for (int i = 0; i < 4; ++i) { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 268 | if (kUseCoverage_CoverageAttribType == type) { |
| 269 | *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color; |
| 270 | *reinterpret_cast<float*>(verts + i * vertexStride + sizeof(GrColor)) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 271 | } else { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 272 | *reinterpret_cast<GrColor*>(verts + i * vertexStride) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 273 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 274 | } |
| 275 | |
robertphillips@google.com | 908aed8 | 2013-05-28 13:16:20 +0000 | [diff] [blame] | 276 | int scale; |
| 277 | if (inset < SK_ScalarHalf) { |
| 278 | scale = SkScalarFloorToInt(512.0f * inset / (inset + SK_ScalarHalf)); |
| 279 | SkASSERT(scale >= 0 && scale <= 255); |
| 280 | } else { |
| 281 | scale = 0xff; |
| 282 | } |
| 283 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 284 | verts += 4 * vertexStride; |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 285 | |
| 286 | float innerCoverage = GrNormalizeByteToFloat(scale); |
| 287 | GrColor scaledColor = (0xff == scale) ? color : SkAlphaMulQ(color, scale); |
| 288 | |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 289 | for (int i = 0; i < 4; ++i) { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 290 | if (kUseCoverage_CoverageAttribType == type) { |
| 291 | *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color; |
| 292 | *reinterpret_cast<float*>(verts + i * vertexStride + sizeof(GrColor)) = innerCoverage; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 293 | } else { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 294 | *reinterpret_cast<GrColor*>(verts + i * vertexStride) = scaledColor; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 295 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | target->setIndexSourceToBuffer(indexBuffer); |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 299 | target->drawIndexedInstances(drawState, |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 300 | gp, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 301 | kTriangles_GrPrimitiveType, |
| 302 | 1, |
robertphillips@google.com | 6d06730 | 2012-12-18 21:47:47 +0000 | [diff] [blame] | 303 | kVertsPerAAFillRect, |
| 304 | kIndicesPerAAFillRect); |
bsalomon@google.com | 0406b9e | 2013-04-02 21:00:15 +0000 | [diff] [blame] | 305 | target->resetIndexSource(); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 306 | } |
| 307 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 308 | void GrAARectRenderer::strokeAARect(GrDrawTarget* target, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 309 | GrDrawState* drawState, |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 310 | GrColor color, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 311 | const SkRect& rect, |
robertphillips@google.com | 18136d1 | 2013-05-10 11:05:58 +0000 | [diff] [blame] | 312 | const SkMatrix& combinedMatrix, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 313 | const SkRect& devRect, |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 314 | const SkStrokeRec& stroke) { |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 315 | SkVector devStrokeSize; |
egdaniel | d58a0ba | 2014-06-11 10:30:05 -0700 | [diff] [blame] | 316 | SkScalar width = stroke.getWidth(); |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 317 | if (width > 0) { |
| 318 | devStrokeSize.set(width, width); |
| 319 | combinedMatrix.mapVectors(&devStrokeSize, 1); |
| 320 | devStrokeSize.setAbs(devStrokeSize); |
| 321 | } else { |
| 322 | devStrokeSize.set(SK_Scalar1, SK_Scalar1); |
| 323 | } |
jvanverth@google.com | 9b855c7 | 2013-03-01 18:21:22 +0000 | [diff] [blame] | 324 | |
robertphillips@google.com | 18136d1 | 2013-05-10 11:05:58 +0000 | [diff] [blame] | 325 | const SkScalar dx = devStrokeSize.fX; |
| 326 | const SkScalar dy = devStrokeSize.fY; |
bsalomon@google.com | 8171288 | 2012-11-01 17:12:34 +0000 | [diff] [blame] | 327 | const SkScalar rx = SkScalarMul(dx, SK_ScalarHalf); |
| 328 | const SkScalar ry = SkScalarMul(dy, SK_ScalarHalf); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 329 | |
robertphillips@google.com | afd1cba | 2013-05-14 19:47:47 +0000 | [diff] [blame] | 330 | // Temporarily #if'ed out. We don't want to pass in the devRect but |
| 331 | // right now it is computed in GrContext::apply_aa_to_rect and we don't |
| 332 | // want to throw away the work |
| 333 | #if 0 |
robertphillips@google.com | 18136d1 | 2013-05-10 11:05:58 +0000 | [diff] [blame] | 334 | SkRect devRect; |
| 335 | combinedMatrix.mapRect(&devRect, rect); |
robertphillips@google.com | afd1cba | 2013-05-14 19:47:47 +0000 | [diff] [blame] | 336 | #endif |
robertphillips@google.com | 18136d1 | 2013-05-10 11:05:58 +0000 | [diff] [blame] | 337 | |
bsalomon@google.com | 8171288 | 2012-11-01 17:12:34 +0000 | [diff] [blame] | 338 | SkScalar spare; |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 339 | { |
bsalomon@google.com | 8171288 | 2012-11-01 17:12:34 +0000 | [diff] [blame] | 340 | SkScalar w = devRect.width() - dx; |
| 341 | SkScalar h = devRect.height() - dy; |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 342 | spare = SkTMin(w, h); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 343 | } |
| 344 | |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 345 | SkRect devOutside(devRect); |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 346 | devOutside.outset(rx, ry); |
| 347 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 348 | bool miterStroke = true; |
yunchao.he | 2bff230 | 2014-07-28 19:18:49 -0700 | [diff] [blame] | 349 | // For hairlines, make bevel and round joins appear the same as mitered ones. |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 350 | // small miter limit means right angles show bevel... |
yunchao.he | 2bff230 | 2014-07-28 19:18:49 -0700 | [diff] [blame] | 351 | if ((width > 0) && (stroke.getJoin() != SkPaint::kMiter_Join || |
| 352 | stroke.getMiter() < SK_ScalarSqrt2)) { |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 353 | miterStroke = false; |
| 354 | } |
| 355 | |
| 356 | if (spare <= 0 && miterStroke) { |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 357 | this->fillAARect(target, drawState, color, devOutside, SkMatrix::I(), devOutside); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 358 | return; |
| 359 | } |
skia.committer@gmail.com | f140f18 | 2013-03-02 07:01:56 +0000 | [diff] [blame] | 360 | |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 361 | SkRect devInside(devRect); |
| 362 | devInside.inset(rx, ry); |
| 363 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 364 | SkRect devOutsideAssist(devRect); |
| 365 | |
| 366 | // For bevel-stroke, use 2 SkRect instances(devOutside and devOutsideAssist) |
| 367 | // to draw the outer of the rect. Because there are 8 vertices on the outer |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 368 | // edge, while vertex number of inner edge is 4, the same as miter-stroke. |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 369 | if (!miterStroke) { |
| 370 | devOutside.inset(0, ry); |
| 371 | devOutsideAssist.outset(0, ry); |
| 372 | } |
| 373 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 374 | this->geometryStrokeAARect(target, drawState, color, devOutside, devOutsideAssist, devInside, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 375 | miterStroke); |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 376 | } |
| 377 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 378 | void GrAARectRenderer::geometryStrokeAARect(GrDrawTarget* target, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 379 | GrDrawState* drawState, |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 380 | GrColor color, |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 381 | const SkRect& devOutside, |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 382 | const SkRect& devOutsideAssist, |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 383 | const SkRect& devInside, |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 384 | bool miterStroke) { |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 385 | GrDrawState::AutoRestoreEffects are(drawState); |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 386 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 387 | CoverageAttribType type; |
| 388 | SkAutoTUnref<const GrGeometryProcessor> gp(create_rect_gp(*drawState, color, &type)); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 389 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 390 | int innerVertexNum = 4; |
| 391 | int outerVertexNum = miterStroke ? 4 : 8; |
| 392 | int totalVertexNum = (outerVertexNum + innerVertexNum) * 2; |
| 393 | |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 394 | size_t vstride = gp->getVertexStride(); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 395 | GrDrawTarget::AutoReleaseGeometry geo(target, totalVertexNum, vstride, 0); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 396 | if (!geo.succeeded()) { |
tfarina | 38406c8 | 2014-10-31 07:11:12 -0700 | [diff] [blame] | 397 | SkDebugf("Failed to get space for vertices!\n"); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 398 | return; |
| 399 | } |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 400 | GrIndexBuffer* indexBuffer = this->aaStrokeRectIndexBuffer(miterStroke); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 401 | if (NULL == indexBuffer) { |
tfarina | 38406c8 | 2014-10-31 07:11:12 -0700 | [diff] [blame] | 402 | SkDebugf("Failed to create index buffer!\n"); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 403 | return; |
| 404 | } |
| 405 | |
| 406 | intptr_t verts = reinterpret_cast<intptr_t>(geo.vertices()); |
| 407 | |
bsalomon@google.com | e7249bd | 2012-08-16 15:28:54 +0000 | [diff] [blame] | 408 | // We create vertices for four nested rectangles. There are two ramps from 0 to full |
| 409 | // coverage, one on the exterior of the stroke and the other on the interior. |
| 410 | // The following pointers refer to the four rects, from outermost to innermost. |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 411 | SkPoint* fan0Pos = reinterpret_cast<SkPoint*>(verts); |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 412 | SkPoint* fan1Pos = reinterpret_cast<SkPoint*>(verts + outerVertexNum * vstride); |
| 413 | SkPoint* fan2Pos = reinterpret_cast<SkPoint*>(verts + 2 * outerVertexNum * vstride); |
| 414 | SkPoint* fan3Pos = reinterpret_cast<SkPoint*>(verts + (2 * outerVertexNum + innerVertexNum) * vstride); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 415 | |
robertphillips@google.com | c111ce2 | 2013-07-01 13:10:10 +0000 | [diff] [blame] | 416 | #ifndef SK_IGNORE_THIN_STROKED_RECT_FIX |
robertphillips@google.com | 353f097 | 2013-06-28 17:57:06 +0000 | [diff] [blame] | 417 | // TODO: this only really works if the X & Y margins are the same all around |
robertphillips | 183e985 | 2014-10-21 11:25:37 -0700 | [diff] [blame] | 418 | // the rect (or if they are all >= 1.0). |
robertphillips@google.com | 353f097 | 2013-06-28 17:57:06 +0000 | [diff] [blame] | 419 | SkScalar inset = SkMinScalar(SK_Scalar1, devOutside.fRight - devInside.fRight); |
| 420 | inset = SkMinScalar(inset, devInside.fLeft - devOutside.fLeft); |
| 421 | inset = SkMinScalar(inset, devInside.fTop - devOutside.fTop); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 422 | if (miterStroke) { |
| 423 | inset = SK_ScalarHalf * SkMinScalar(inset, devOutside.fBottom - devInside.fBottom); |
| 424 | } else { |
| 425 | inset = SK_ScalarHalf * SkMinScalar(inset, devOutsideAssist.fBottom - devInside.fBottom); |
| 426 | } |
robertphillips@google.com | 353f097 | 2013-06-28 17:57:06 +0000 | [diff] [blame] | 427 | SkASSERT(inset >= 0); |
robertphillips@google.com | c111ce2 | 2013-07-01 13:10:10 +0000 | [diff] [blame] | 428 | #else |
| 429 | SkScalar inset = SK_ScalarHalf; |
| 430 | #endif |
robertphillips@google.com | 353f097 | 2013-06-28 17:57:06 +0000 | [diff] [blame] | 431 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 432 | if (miterStroke) { |
| 433 | // outermost |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 434 | set_inset_fan(fan0Pos, vstride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 435 | // inner two |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 436 | set_inset_fan(fan1Pos, vstride, devOutside, inset, inset); |
| 437 | set_inset_fan(fan2Pos, vstride, devInside, -inset, -inset); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 438 | // innermost |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 439 | set_inset_fan(fan3Pos, vstride, devInside, SK_ScalarHalf, SK_ScalarHalf); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 440 | } else { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 441 | SkPoint* fan0AssistPos = reinterpret_cast<SkPoint*>(verts + 4 * vstride); |
| 442 | SkPoint* fan1AssistPos = reinterpret_cast<SkPoint*>(verts + (outerVertexNum + 4) * vstride); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 443 | // outermost |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 444 | set_inset_fan(fan0Pos, vstride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf); |
| 445 | set_inset_fan(fan0AssistPos, vstride, devOutsideAssist, -SK_ScalarHalf, -SK_ScalarHalf); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 446 | // outer one of the inner two |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 447 | set_inset_fan(fan1Pos, vstride, devOutside, inset, inset); |
| 448 | set_inset_fan(fan1AssistPos, vstride, devOutsideAssist, inset, inset); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 449 | // inner one of the inner two |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 450 | set_inset_fan(fan2Pos, vstride, devInside, -inset, -inset); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 451 | // innermost |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 452 | set_inset_fan(fan3Pos, vstride, devInside, SK_ScalarHalf, SK_ScalarHalf); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 453 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 454 | |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 455 | // Make verts point to vertex color and then set all the color and coverage vertex attrs values. |
bsalomon@google.com | e7249bd | 2012-08-16 15:28:54 +0000 | [diff] [blame] | 456 | // The outermost rect has 0 coverage |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 457 | verts += sizeof(SkPoint); |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 458 | for (int i = 0; i < outerVertexNum; ++i) { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 459 | if (kUseCoverage_CoverageAttribType == type) { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 460 | *reinterpret_cast<GrColor*>(verts + i * vstride) = color; |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 461 | *reinterpret_cast<float*>(verts + i * vstride + sizeof(GrColor)) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 462 | } else { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 463 | *reinterpret_cast<GrColor*>(verts + i * vstride) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 464 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 465 | } |
| 466 | |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 467 | // scale is the coverage for the the inner two rects. |
robertphillips@google.com | 353f097 | 2013-06-28 17:57:06 +0000 | [diff] [blame] | 468 | int scale; |
| 469 | if (inset < SK_ScalarHalf) { |
| 470 | scale = SkScalarFloorToInt(512.0f * inset / (inset + SK_ScalarHalf)); |
| 471 | SkASSERT(scale >= 0 && scale <= 255); |
| 472 | } else { |
| 473 | scale = 0xff; |
| 474 | } |
| 475 | |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 476 | float innerCoverage = GrNormalizeByteToFloat(scale); |
| 477 | GrColor scaledColor = (0xff == scale) ? color : SkAlphaMulQ(color, scale); |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 478 | |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 479 | verts += outerVertexNum * vstride; |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 480 | for (int i = 0; i < outerVertexNum + innerVertexNum; ++i) { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 481 | if (kUseCoverage_CoverageAttribType == type) { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 482 | *reinterpret_cast<GrColor*>(verts + i * vstride) = color; |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 483 | *reinterpret_cast<float*>(verts + i * vstride + sizeof(GrColor)) = innerCoverage; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 484 | } else { |
egdaniel | e27065a | 2014-11-06 08:00:48 -0800 | [diff] [blame] | 485 | *reinterpret_cast<GrColor*>(verts + i * vstride) = scaledColor; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 486 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 487 | } |
| 488 | |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 489 | // The innermost rect has 0 coverage |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 490 | verts += (outerVertexNum + innerVertexNum) * vstride; |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 491 | for (int i = 0; i < innerVertexNum; ++i) { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 492 | if (kUseCoverage_CoverageAttribType == type) { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 493 | *reinterpret_cast<GrColor*>(verts + i * vstride) = color; |
| 494 | *reinterpret_cast<GrColor*>(verts + i * vstride + sizeof(GrColor)) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 495 | } else { |
egdaniel | 7b3d5ee | 2014-08-28 05:41:14 -0700 | [diff] [blame] | 496 | *reinterpret_cast<GrColor*>(verts + i * vstride) = 0; |
bsalomon | c30aaa0 | 2014-08-13 07:15:29 -0700 | [diff] [blame] | 497 | } |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 498 | } |
| 499 | |
| 500 | target->setIndexSourceToBuffer(indexBuffer); |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 501 | target->drawIndexedInstances(drawState, |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame^] | 502 | gp, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 503 | kTriangles_GrPrimitiveType, |
| 504 | 1, |
| 505 | totalVertexNum, |
| 506 | aa_stroke_rect_index_count(miterStroke)); |
joshualitt | 5ead6da | 2014-10-22 16:00:29 -0700 | [diff] [blame] | 507 | target->resetIndexSource(); |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 508 | } |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 509 | |
joshualitt | b44293e | 2014-10-28 08:12:18 -0700 | [diff] [blame] | 510 | void GrAARectRenderer::fillAANestedRects(GrDrawTarget* target, |
joshualitt | 9853cce | 2014-11-17 14:22:48 -0800 | [diff] [blame] | 511 | GrDrawState* drawState, |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 512 | GrColor color, |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 513 | const SkRect rects[2], |
bsalomon | 9c0822a | 2014-08-11 11:07:48 -0700 | [diff] [blame] | 514 | const SkMatrix& combinedMatrix) { |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 515 | SkASSERT(combinedMatrix.rectStaysRect()); |
| 516 | SkASSERT(!rects[1].isEmpty()); |
| 517 | |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 518 | SkRect devOutside, devOutsideAssist, devInside; |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 519 | combinedMatrix.mapRect(&devOutside, rects[0]); |
| 520 | // can't call mapRect for devInside since it calls sort |
| 521 | combinedMatrix.mapPoints((SkPoint*)&devInside, (const SkPoint*)&rects[1], 2); |
| 522 | |
| 523 | if (devInside.isEmpty()) { |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 524 | this->fillAARect(target, drawState, color, devOutside, SkMatrix::I(), devOutside); |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 525 | return; |
| 526 | } |
| 527 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 528 | this->geometryStrokeAARect(target, drawState, color, devOutside, devOutsideAssist, devInside, |
| 529 | true); |
robertphillips@google.com | 83d1a68 | 2013-05-17 12:50:27 +0000 | [diff] [blame] | 530 | } |