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| 1 /* | |
| 2 * Copyright 2015 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 "GrDrawAtlasBatch.h" | |
| 9 #include "GrBatchTest.h" | |
| 10 #include "SkRandom.h" | |
| 11 | |
| 12 void GrDrawAtlasBatch::initBatchTracker(const GrPipelineInfo& init) { | |
| 13 // Handle any color overrides | |
| 14 if (!init.readsColor()) { | |
| 15 fGeoData[0].fColor = GrColor_ILLEGAL; | |
| 16 } | |
| 17 init.getOverrideColorIfSet(&fGeoData[0].fColor); | |
| 18 | |
| 19 // setup batch properties | |
| 20 fColorIgnored = !init.readsColor(); | |
| 21 fColor = fGeoData[0].fColor; | |
| 22 SkASSERT(init.readsLocalCoords()); | |
| 23 fCoverageIgnored = !init.readsCoverage(); | |
| 24 } | |
| 25 | |
| 26 static const GrGeometryProcessor* set_vertex_attributes(bool hasLocalCoords, | |
| 27 bool hasColors, | |
| 28 int* colorOffset, | |
| 29 int* texOffset, | |
| 30 GrColor color, | |
| 31 const SkMatrix& viewMatr
ix, | |
| 32 bool coverageIgnored) { | |
| 33 using namespace GrDefaultGeoProcFactory; | |
| 34 *texOffset = -1; | |
| 35 *colorOffset = -1; | |
| 36 Color gpColor(color); | |
| 37 if (hasColors) { | |
| 38 gpColor.fType = Color::kAttribute_Type; | |
| 39 } | |
| 40 | |
| 41 Coverage coverage(coverageIgnored ? Coverage::kNone_Type : Coverage::kSolid_
Type); | |
| 42 LocalCoords localCoords(hasLocalCoords ? LocalCoords::kHasExplicit_Type : | |
| 43 LocalCoords::kUsePosition_Type); | |
| 44 if (hasLocalCoords && hasColors) { | |
| 45 *colorOffset = sizeof(SkPoint); | |
| 46 *texOffset = sizeof(SkPoint) + sizeof(GrColor); | |
| 47 } else if (hasLocalCoords) { | |
| 48 *texOffset = sizeof(SkPoint); | |
| 49 } else if (hasColors) { | |
| 50 *colorOffset = sizeof(SkPoint); | |
| 51 } | |
| 52 return GrDefaultGeoProcFactory::Create(gpColor, coverage, localCoords, viewM
atrix); | |
| 53 } | |
| 54 | |
| 55 void GrDrawAtlasBatch::generateGeometry(GrBatchTarget* batchTarget) { | |
| 56 int colorOffset = -1, texOffset = -1; | |
| 57 // Setup geometry processor | |
| 58 SkAutoTUnref<const GrGeometryProcessor> gp( | |
| 59 set_vertex_attributes(true, this->hasColors(), &
colorOffset, | |
| 60 &texOffset, this->color(),
this->viewMatrix(), | |
| 61 this->coverageIgnored())); | |
| 62 | |
| 63 batchTarget->initDraw(gp, this->pipeline()); | |
| 64 | |
| 65 int instanceCount = fGeoData.count(); | |
| 66 size_t vertexStride = gp->getVertexStride(); | |
| 67 SkASSERT(vertexStride == sizeof(SkPoint) + sizeof(SkPoint) | |
| 68 + (this->hasColors() ? sizeof(GrColor) : 0)); | |
| 69 | |
| 70 QuadHelper helper; | |
| 71 int numQuads = this->vertexCount()/4; | |
| 72 void* verts = helper.init(batchTarget, vertexStride, numQuads); | |
| 73 if (!verts) { | |
| 74 SkDebugf("Could not allocate vertices\n"); | |
| 75 return; | |
| 76 } | |
| 77 | |
| 78 int vertexOffset = 0; | |
| 79 for (int i = 0; i < instanceCount; i++) { | |
| 80 const Geometry& args = fGeoData[i]; | |
| 81 | |
| 82 for (int j = 0; j < args.fPositions.count(); ++j) { | |
| 83 *((SkPoint*)verts) = args.fPositions[j]; | |
| 84 if (this->hasColors()) { | |
| 85 *(GrColor*)((intptr_t)verts + colorOffset) = args.fColors[j]; | |
| 86 } | |
| 87 *(SkPoint*)((intptr_t)verts + texOffset) = args.fLocalCoords[j]; | |
| 88 verts = (void*)((intptr_t)verts + vertexStride); | |
| 89 vertexOffset++; | |
| 90 } | |
| 91 } | |
| 92 helper.issueDraw(batchTarget); | |
| 93 } | |
| 94 | |
| 95 GrDrawAtlasBatch::GrDrawAtlasBatch(const Geometry& geometry, const SkMatrix& vie
wMatrix, | |
| 96 const SkPoint* positions, int vertexCount, | |
| 97 const GrColor* colors, const SkPoint* localCo
ords, | |
| 98 const SkRect& bounds) { | |
| 99 this->initClassID<GrDrawAtlasBatch>(); | |
| 100 SkASSERT(positions); | |
| 101 SkASSERT(localCoords); | |
| 102 | |
| 103 fViewMatrix = viewMatrix; | |
| 104 Geometry& installedGeo = fGeoData.push_back(geometry); | |
| 105 | |
| 106 installedGeo.fPositions.append(vertexCount, positions); | |
| 107 | |
| 108 if (colors) { | |
| 109 installedGeo.fColors.append(vertexCount, colors); | |
| 110 fHasColors = true; | |
| 111 } else { | |
| 112 fHasColors = false; | |
| 113 } | |
| 114 | |
| 115 installedGeo.fLocalCoords.append(vertexCount, localCoords); | |
| 116 fVertexCount = vertexCount; | |
| 117 | |
| 118 this->setBounds(bounds); | |
| 119 } | |
| 120 | |
| 121 bool GrDrawAtlasBatch::onCombineIfPossible(GrBatch* t) { | |
| 122 if (!this->pipeline()->isEqual(*t->pipeline())) { | |
| 123 return false; | |
| 124 } | |
| 125 | |
| 126 GrDrawAtlasBatch* that = t->cast<GrDrawAtlasBatch>(); | |
| 127 | |
| 128 // We currently use a uniform viewmatrix for this batch | |
| 129 if (!this->viewMatrix().cheapEqualTo(that->viewMatrix())) { | |
| 130 return false; | |
| 131 } | |
| 132 | |
| 133 if (this->hasColors() != that->hasColors()) { | |
| 134 return false; | |
| 135 } | |
| 136 | |
| 137 if (!this->hasColors() && this->color() != that->color()) { | |
| 138 return false; | |
| 139 } | |
| 140 | |
| 141 if (this->color() != that->color()) { | |
| 142 fColor = GrColor_ILLEGAL; | |
| 143 } | |
| 144 fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin()); | |
| 145 fVertexCount += that->vertexCount(); | |
| 146 | |
| 147 this->joinBounds(that->bounds()); | |
| 148 return true; | |
| 149 } | |
| 150 | |
| 151 #ifdef GR_TEST_UTILS | |
| 152 | |
| 153 static SkPoint random_point(SkRandom* random, SkScalar min, SkScalar max) { | |
| 154 SkPoint p; | |
| 155 p.fX = random->nextRangeScalar(min, max); | |
| 156 p.fY = random->nextRangeScalar(min, max); | |
| 157 return p; | |
| 158 } | |
| 159 | |
| 160 static void randomize_params(size_t count, SkScalar min, SkScalar max, | |
| 161 SkRandom* random, | |
| 162 SkTArray<SkPoint>* positions, | |
| 163 SkTArray<SkPoint>* texCoords, | |
| 164 SkTArray<GrColor>* colors, bool hasColors) { | |
| 165 for (uint32_t v = 0; v < count; v++) { | |
| 166 positions->push_back(random_point(random, min, max)); | |
| 167 texCoords->push_back(random_point(random, min, max)); | |
| 168 if (hasColors) { | |
| 169 colors->push_back(GrRandomColor(random)); | |
| 170 } | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 | |
| 175 BATCH_TEST_DEFINE(GrDrawAtlasBatch) { | |
| 176 uint32_t spriteCount = random->nextRangeU(1, 100); | |
| 177 | |
| 178 // TODO make 'sensible' indexbuffers | |
| 179 SkTArray<SkPoint> positions; | |
| 180 SkTArray<SkPoint> texCoords; | |
| 181 SkTArray<GrColor> colors; | |
| 182 | |
| 183 bool hasColors = random->nextBool(); | |
| 184 | |
| 185 uint32_t vertexCount = 4*spriteCount; | |
| 186 | |
| 187 static const SkScalar kMinVertExtent = -100.f; | |
| 188 static const SkScalar kMaxVertExtent = 100.f; | |
| 189 randomize_params(vertexCount, kMinVertExtent, kMaxVertExtent, | |
| 190 random, | |
| 191 &positions, | |
| 192 &texCoords, | |
| 193 &colors, hasColors); | |
| 194 | |
| 195 SkMatrix viewMatrix = GrTest::TestMatrix(random); | |
| 196 SkRect bounds; | |
| 197 SkDEBUGCODE(bool result = ) bounds.setBoundsCheck(positions.begin(), vertexC
ount); | |
| 198 SkASSERT(result); | |
| 199 | |
| 200 viewMatrix.mapRect(&bounds); | |
| 201 | |
| 202 GrDrawAtlasBatch::Geometry geometry; | |
| 203 geometry.fColor = GrRandomColor(random); | |
| 204 return GrDrawAtlasBatch::Create(geometry, viewMatrix, | |
| 205 positions.begin(), vertexCount, | |
| 206 colors.begin(), | |
| 207 texCoords.begin(), | |
| 208 bounds); | |
| 209 } | |
| 210 | |
| 211 #endif | |
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Chromium Code Reviews
Issue 1276173003:
Revert of Move GrDrawAtlasBatch to separate file (Closed)
Base URL: https://skia.googlesource.com/skia.git@drawAtlas-08-06