bool canTweakAlphaForCoverage = this->canTweakAlphaForCoverage();
SkMatrix localMatrix;
- if (!this->viewMatrix().invert(&localMatrix)) {
+ if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
SkDebugf("Cannot invert\n");
return;
}
- const GrGeometryProcessor* gp = create_fill_rect_gp(canTweakAlphaForCoverage,
- localMatrix);
+ SkAutoTUnref<const GrGeometryProcessor> gp(create_fill_rect_gp(canTweakAlphaForCoverage,
+ localMatrix));
batchTarget->initDraw(gp, pipeline);
- gp->unref();
// TODO this is hacky, but the only way we have to initialize the GP is to use the
// GrPipelineInfo struct so we can generate the correct shader. Once we have GrBatch
const GrVertexBuffer* vertexBuffer;
int firstVertex;
- void *vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
+ void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
vertexCount,
&vertexBuffer,
&firstVertex);
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
this->generateAAFillRectGeometry(vertices,
- i * kVertsPerAAFillRect * vertexStride,
- vertexStride,
- args.fColor,
- args.fViewMatrix,
- args.fRect,
- args.fDevRect,
- canTweakAlphaForCoverage);
+ i * kVertsPerAAFillRect * vertexStride,
+ vertexStride,
+ args.fColor,
+ args.fViewMatrix,
+ args.fRect,
+ args.fDevRect,
+ canTweakAlphaForCoverage);
}
GrDrawTarget::DrawInfo drawInfo;
devOutsideAssist, devInside, miterStroke);
}
-static const GrGeometryProcessor* create_rect_gp(const GrPipelineBuilder& pipelneBuilder,
- GrColor color,
- CoverageAttribType* type,
- const SkMatrix& localMatrix) {
- uint32_t flags = GrDefaultGeoProcFactory::kColor_GPType;
- const GrGeometryProcessor* gp;
- if (pipelneBuilder.canTweakAlphaForCoverage()) {
- gp = GrDefaultGeoProcFactory::Create(flags, color, SkMatrix::I(), localMatrix);
- SkASSERT(gp->getVertexStride() == sizeof(GrDefaultGeoProcFactory::PositionColorAttr));
- *type = kUseColor_CoverageAttribType;
- } else {
- flags |= GrDefaultGeoProcFactory::kCoverage_GPType;
- gp = GrDefaultGeoProcFactory::Create(flags, color, SkMatrix::I(), localMatrix,
- GrColorIsOpaque(color));
- SkASSERT(gp->getVertexStride()==sizeof(GrDefaultGeoProcFactory::PositionColorCoverageAttr));
- *type = kUseCoverage_CoverageAttribType;
+class AAStrokeRectBatch : public GrBatch {
+public:
+ // TODO support AA rotated stroke rects by copying around view matrices
+ struct Geometry {
+ GrColor fColor;
+ SkRect fDevOutside;
+ SkRect fDevOutsideAssist;
+ SkRect fDevInside;
+ bool fMiterStroke;
+ };
+
+ static GrBatch* Create(const Geometry& geometry, const SkMatrix& viewMatrix,
+ const GrIndexBuffer* indexBuffer) {
+ return SkNEW_ARGS(AAStrokeRectBatch, (geometry, viewMatrix, indexBuffer));
}
- return gp;
-}
+ const char* name() const SK_OVERRIDE { return "AAStrokeRect"; }
-void GrAARectRenderer::geometryStrokeAARect(GrDrawTarget* target,
- GrPipelineBuilder* pipelineBuilder,
- GrColor color,
- const SkMatrix& viewMatrix,
- const SkRect& devOutside,
- const SkRect& devOutsideAssist,
- const SkRect& devInside,
- bool miterStroke) {
- SkMatrix localMatrix;
- if (!viewMatrix.invert(&localMatrix)) {
- SkDebugf("Cannot invert\n");
- return;
+ void getInvariantOutputColor(GrInitInvariantOutput* out) const SK_OVERRIDE {
+ // When this is called on a batch, there is only one geometry bundle
+ out->setKnownFourComponents(fGeoData[0].fColor);
}
- CoverageAttribType type;
- SkAutoTUnref<const GrGeometryProcessor> gp(create_rect_gp(*pipelineBuilder, color, &type,
- localMatrix));
+ void getInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
+ out->setUnknownSingleComponent();
+ }
- int innerVertexNum = 4;
- int outerVertexNum = miterStroke ? 4 : 8;
- int totalVertexNum = (outerVertexNum + innerVertexNum) * 2;
+ void initBatchTracker(const GrPipelineInfo& init) SK_OVERRIDE {
+ // Handle any color overrides
+ if (init.fColorIgnored) {
+ fGeoData[0].fColor = GrColor_ILLEGAL;
+ } else if (GrColor_ILLEGAL != init.fOverrideColor) {
+ fGeoData[0].fColor = init.fOverrideColor;
+ }
- size_t vstride = gp->getVertexStride();
- GrDrawTarget::AutoReleaseGeometry geo(target, totalVertexNum, vstride, 0);
- if (!geo.succeeded()) {
- SkDebugf("Failed to get space for vertices!\n");
- return;
- }
- GrIndexBuffer* indexBuffer = this->aaStrokeRectIndexBuffer(miterStroke);
- if (NULL == indexBuffer) {
- SkDebugf("Failed to create index buffer!\n");
- return;
+ // setup batch properties
+ fBatch.fColorIgnored = init.fColorIgnored;
+ fBatch.fColor = fGeoData[0].fColor;
+ fBatch.fUsesLocalCoords = init.fUsesLocalCoords;
+ fBatch.fCoverageIgnored = init.fCoverageIgnored;
+ fBatch.fMiterStroke = fGeoData[0].fMiterStroke;
+ fBatch.fCanTweakAlphaForCoverage = init.fCanTweakAlphaForCoverage;
}
- intptr_t verts = reinterpret_cast<intptr_t>(geo.vertices());
-
- // We create vertices for four nested rectangles. There are two ramps from 0 to full
- // coverage, one on the exterior of the stroke and the other on the interior.
- // The following pointers refer to the four rects, from outermost to innermost.
- SkPoint* fan0Pos = reinterpret_cast<SkPoint*>(verts);
- SkPoint* fan1Pos = reinterpret_cast<SkPoint*>(verts + outerVertexNum * vstride);
- SkPoint* fan2Pos = reinterpret_cast<SkPoint*>(verts + 2 * outerVertexNum * vstride);
- SkPoint* fan3Pos = reinterpret_cast<SkPoint*>(verts + (2 * outerVertexNum + innerVertexNum) * vstride);
-
-#ifndef SK_IGNORE_THIN_STROKED_RECT_FIX
- // TODO: this only really works if the X & Y margins are the same all around
- // the rect (or if they are all >= 1.0).
- SkScalar inset = SkMinScalar(SK_Scalar1, devOutside.fRight - devInside.fRight);
- inset = SkMinScalar(inset, devInside.fLeft - devOutside.fLeft);
- inset = SkMinScalar(inset, devInside.fTop - devOutside.fTop);
- if (miterStroke) {
- inset = SK_ScalarHalf * SkMinScalar(inset, devOutside.fBottom - devInside.fBottom);
- } else {
- inset = SK_ScalarHalf * SkMinScalar(inset, devOutsideAssist.fBottom - devInside.fBottom);
+ void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) SK_OVERRIDE {
+ bool canTweakAlphaForCoverage = this->canTweakAlphaForCoverage();
+
+ // Local matrix is ignored if we don't have local coords. If we have localcoords we only
+ // batch with identical view matrices
+ SkMatrix localMatrix;
+ if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
+ SkDebugf("Cannot invert\n");
+ return;
+ }
+
+ SkAutoTUnref<const GrGeometryProcessor>gp(create_fill_rect_gp(canTweakAlphaForCoverage,
+ localMatrix));
+
+ batchTarget->initDraw(gp, pipeline);
+
+ // TODO this is hacky, but the only way we have to initialize the GP is to use the
+ // GrPipelineInfo struct so we can generate the correct shader. Once we have GrBatch
+ // everywhere we can remove this nastiness
+ GrPipelineInfo init;
+ init.fColorIgnored = fBatch.fColorIgnored;
+ init.fOverrideColor = GrColor_ILLEGAL;
+ init.fCoverageIgnored = fBatch.fCoverageIgnored;
+ init.fUsesLocalCoords = this->usesLocalCoords();
+ gp->initBatchTracker(batchTarget->currentBatchTracker(), init);
+
+ size_t vertexStride = gp->getVertexStride();
+
+ SkASSERT(canTweakAlphaForCoverage ?
+ vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorAttr) :
+ vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorCoverageAttr));
+
+ int innerVertexNum = 4;
+ int outerVertexNum = this->miterStroke() ? 4 : 8;
+ int totalVertexNum = (outerVertexNum + innerVertexNum) * 2;
+
+ int instanceCount = fGeoData.count();
+ int vertexCount = totalVertexNum * instanceCount;
+
+ const GrVertexBuffer* vertexBuffer;
+ int firstVertex;
+
+ void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
+ vertexCount,
+ &vertexBuffer,
+ &firstVertex);
+
+ for (int i = 0; i < instanceCount; i++) {
+ const Geometry& args = fGeoData[i];
+ this->generateAAStrokeRectGeometry(vertices,
+ i * totalVertexNum * vertexStride,
+ vertexStride,
+ outerVertexNum,
+ innerVertexNum,
+ args.fColor,
+ args.fDevOutside,
+ args.fDevOutsideAssist,
+ args.fDevInside,
+ args.fMiterStroke,
+ canTweakAlphaForCoverage);
+ }
+
+ GrDrawTarget::DrawInfo drawInfo;
+ drawInfo.setPrimitiveType(kTriangles_GrPrimitiveType);
+ drawInfo.setStartVertex(0);
+ drawInfo.setStartIndex(0);
+ drawInfo.setVerticesPerInstance(totalVertexNum);
+ drawInfo.setIndicesPerInstance(aa_stroke_rect_index_count(this->miterStroke()));
+ drawInfo.adjustStartVertex(firstVertex);
+ drawInfo.setVertexBuffer(vertexBuffer);
+ drawInfo.setIndexBuffer(fIndexBuffer);
+
+ int maxInstancesPerDraw = kNumBevelStrokeRectsInIndexBuffer;
+
+ while (instanceCount) {
+ drawInfo.setInstanceCount(SkTMin(instanceCount, maxInstancesPerDraw));
+ drawInfo.setVertexCount(drawInfo.instanceCount() * drawInfo.verticesPerInstance());
+ drawInfo.setIndexCount(drawInfo.instanceCount() * drawInfo.indicesPerInstance());
+
+ batchTarget->draw(drawInfo);
+
+ drawInfo.setStartVertex(drawInfo.startVertex() + drawInfo.vertexCount());
+ instanceCount -= drawInfo.instanceCount();
+ }
}
- SkASSERT(inset >= 0);
-#else
- SkScalar inset = SK_ScalarHalf;
-#endif
- if (miterStroke) {
- // outermost
- set_inset_fan(fan0Pos, vstride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf);
- // inner two
- set_inset_fan(fan1Pos, vstride, devOutside, inset, inset);
- set_inset_fan(fan2Pos, vstride, devInside, -inset, -inset);
- // innermost
- set_inset_fan(fan3Pos, vstride, devInside, SK_ScalarHalf, SK_ScalarHalf);
- } else {
- SkPoint* fan0AssistPos = reinterpret_cast<SkPoint*>(verts + 4 * vstride);
- SkPoint* fan1AssistPos = reinterpret_cast<SkPoint*>(verts + (outerVertexNum + 4) * vstride);
- // outermost
- set_inset_fan(fan0Pos, vstride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf);
- set_inset_fan(fan0AssistPos, vstride, devOutsideAssist, -SK_ScalarHalf, -SK_ScalarHalf);
- // outer one of the inner two
- set_inset_fan(fan1Pos, vstride, devOutside, inset, inset);
- set_inset_fan(fan1AssistPos, vstride, devOutsideAssist, inset, inset);
- // inner one of the inner two
- set_inset_fan(fan2Pos, vstride, devInside, -inset, -inset);
- // innermost
- set_inset_fan(fan3Pos, vstride, devInside, SK_ScalarHalf, SK_ScalarHalf);
+ SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
+
+private:
+ AAStrokeRectBatch(const Geometry& geometry, const SkMatrix& viewMatrix,
+ const GrIndexBuffer* indexBuffer)
+ : fIndexBuffer(indexBuffer) {
+ this->initClassID<AAStrokeRectBatch>();
+ fBatch.fViewMatrix = viewMatrix;
+ fGeoData.push_back(geometry);
}
- // Make verts point to vertex color and then set all the color and coverage vertex attrs values.
- // The outermost rect has 0 coverage
- verts += sizeof(SkPoint);
- for (int i = 0; i < outerVertexNum; ++i) {
- if (kUseCoverage_CoverageAttribType == type) {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = color;
- *reinterpret_cast<float*>(verts + i * vstride + sizeof(GrColor)) = 0;
- } else {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = 0;
+ GrColor color() const { return fBatch.fColor; }
+ bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
+ bool canTweakAlphaForCoverage() const { return fBatch.fCanTweakAlphaForCoverage; }
+ bool colorIgnored() const { return fBatch.fColorIgnored; }
+ const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; }
+ bool miterStroke() const { return fBatch.fMiterStroke; }
+
+ bool onCombineIfPossible(GrBatch* t) SK_OVERRIDE {
+ AAStrokeRectBatch* that = t->cast<AAStrokeRectBatch>();
+
+ // TODO batch across miterstroke changes
+ if (this->miterStroke() != that->miterStroke()) {
+ return false;
}
- }
- // scale is the coverage for the the inner two rects.
- int scale;
- if (inset < SK_ScalarHalf) {
- scale = SkScalarFloorToInt(512.0f * inset / (inset + SK_ScalarHalf));
- SkASSERT(scale >= 0 && scale <= 255);
- } else {
- scale = 0xff;
+ // We apply the viewmatrix to the rect points on the cpu. However, if the pipeline uses
+ // local coords then we won't be able to batch. We could actually upload the viewmatrix
+ // using vertex attributes in these cases, but haven't investigated that
+ if (this->usesLocalCoords() && !this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
+ return false;
+ }
+
+ // In the event of two batches, one who can tweak, one who cannot, we just fall back to
+ // not tweaking
+ if (this->canTweakAlphaForCoverage() != that->canTweakAlphaForCoverage()) {
+ fBatch.fCanTweakAlphaForCoverage = false;
+ }
+
+ if (this->color() != that->color()) {
+ fBatch.fColor = GrColor_ILLEGAL;
+ }
+ fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin());
+ return true;
}
- float innerCoverage = GrNormalizeByteToFloat(scale);
- GrColor scaledColor = (0xff == scale) ? color : SkAlphaMulQ(color, scale);
+ void generateAAStrokeRectGeometry(void* vertices,
+ size_t offset,
+ size_t vertexStride,
+ int outerVertexNum,
+ int innerVertexNum,
+ GrColor color,
+ const SkRect& devOutside,
+ const SkRect& devOutsideAssist,
+ const SkRect& devInside,
+ bool miterStroke,
+ bool tweakAlphaForCoverage) const {
+ intptr_t verts = reinterpret_cast<intptr_t>(vertices) + offset;
- verts += outerVertexNum * vstride;
- for (int i = 0; i < outerVertexNum + innerVertexNum; ++i) {
- if (kUseCoverage_CoverageAttribType == type) {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = color;
- *reinterpret_cast<float*>(verts + i * vstride + sizeof(GrColor)) = innerCoverage;
+ // We create vertices for four nested rectangles. There are two ramps from 0 to full
+ // coverage, one on the exterior of the stroke and the other on the interior.
+ // The following pointers refer to the four rects, from outermost to innermost.
+ SkPoint* fan0Pos = reinterpret_cast<SkPoint*>(verts);
+ SkPoint* fan1Pos = reinterpret_cast<SkPoint*>(verts + outerVertexNum * vertexStride);
+ SkPoint* fan2Pos = reinterpret_cast<SkPoint*>(verts + 2 * outerVertexNum * vertexStride);
+ SkPoint* fan3Pos = reinterpret_cast<SkPoint*>(verts +
+ (2 * outerVertexNum + innerVertexNum) *
+ vertexStride);
+
+ #ifndef SK_IGNORE_THIN_STROKED_RECT_FIX
+ // TODO: this only really works if the X & Y margins are the same all around
+ // the rect (or if they are all >= 1.0).
+ SkScalar inset = SkMinScalar(SK_Scalar1, devOutside.fRight - devInside.fRight);
+ inset = SkMinScalar(inset, devInside.fLeft - devOutside.fLeft);
+ inset = SkMinScalar(inset, devInside.fTop - devOutside.fTop);
+ if (miterStroke) {
+ inset = SK_ScalarHalf * SkMinScalar(inset, devOutside.fBottom - devInside.fBottom);
} else {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = scaledColor;
+ inset = SK_ScalarHalf * SkMinScalar(inset, devOutsideAssist.fBottom -
+ devInside.fBottom);
+ }
+ SkASSERT(inset >= 0);
+ #else
+ SkScalar inset = SK_ScalarHalf;
+ #endif
+
+ if (miterStroke) {
+ // outermost
+ set_inset_fan(fan0Pos, vertexStride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf);
+ // inner two
+ set_inset_fan(fan1Pos, vertexStride, devOutside, inset, inset);
+ set_inset_fan(fan2Pos, vertexStride, devInside, -inset, -inset);
+ // innermost
+ set_inset_fan(fan3Pos, vertexStride, devInside, SK_ScalarHalf, SK_ScalarHalf);
+ } else {
+ SkPoint* fan0AssistPos = reinterpret_cast<SkPoint*>(verts + 4 * vertexStride);
+ SkPoint* fan1AssistPos = reinterpret_cast<SkPoint*>(verts +
+ (outerVertexNum + 4) *
+ vertexStride);
+ // outermost
+ set_inset_fan(fan0Pos, vertexStride, devOutside, -SK_ScalarHalf, -SK_ScalarHalf);
+ set_inset_fan(fan0AssistPos, vertexStride, devOutsideAssist, -SK_ScalarHalf,
+ -SK_ScalarHalf);
+ // outer one of the inner two
+ set_inset_fan(fan1Pos, vertexStride, devOutside, inset, inset);
+ set_inset_fan(fan1AssistPos, vertexStride, devOutsideAssist, inset, inset);
+ // inner one of the inner two
+ set_inset_fan(fan2Pos, vertexStride, devInside, -inset, -inset);
+ // innermost
+ set_inset_fan(fan3Pos, vertexStride, devInside, SK_ScalarHalf, SK_ScalarHalf);
+ }
+
+ // Make verts point to vertex color and then set all the color and coverage vertex attrs
+ // values. The outermost rect has 0 coverage
+ verts += sizeof(SkPoint);
+ for (int i = 0; i < outerVertexNum; ++i) {
+ if (tweakAlphaForCoverage) {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = 0;
+ } else {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color;
+ *reinterpret_cast<float*>(verts + i * vertexStride + sizeof(GrColor)) = 0;
+ }
}
- }
- // The innermost rect has 0 coverage
- verts += (outerVertexNum + innerVertexNum) * vstride;
- for (int i = 0; i < innerVertexNum; ++i) {
- if (kUseCoverage_CoverageAttribType == type) {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = color;
- *reinterpret_cast<GrColor*>(verts + i * vstride + sizeof(GrColor)) = 0;
+ // scale is the coverage for the the inner two rects.
+ int scale;
+ if (inset < SK_ScalarHalf) {
+ scale = SkScalarFloorToInt(512.0f * inset / (inset + SK_ScalarHalf));
+ SkASSERT(scale >= 0 && scale <= 255);
} else {
- *reinterpret_cast<GrColor*>(verts + i * vstride) = 0;
+ scale = 0xff;
+ }
+
+ float innerCoverage = GrNormalizeByteToFloat(scale);
+ GrColor scaledColor = (0xff == scale) ? color : SkAlphaMulQ(color, scale);
+
+ verts += outerVertexNum * vertexStride;
+ for (int i = 0; i < outerVertexNum + innerVertexNum; ++i) {
+ if (tweakAlphaForCoverage) {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = scaledColor;
+ } else {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color;
+ *reinterpret_cast<float*>(verts + i * vertexStride + sizeof(GrColor)) =
+ innerCoverage;
+ }
+ }
+
+ // The innermost rect has 0 coverage
+ verts += (outerVertexNum + innerVertexNum) * vertexStride;
+ for (int i = 0; i < innerVertexNum; ++i) {
+ if (tweakAlphaForCoverage) {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = 0;
+ } else {
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color;
+ *reinterpret_cast<GrColor*>(verts + i * vertexStride + sizeof(GrColor)) = 0;
+ }
}
}
- target->setIndexSourceToBuffer(indexBuffer);
- target->drawIndexedInstances(pipelineBuilder,
- gp,
- kTriangles_GrPrimitiveType,
- 1,
- totalVertexNum,
- aa_stroke_rect_index_count(miterStroke));
- target->resetIndexSource();
+ struct BatchTracker {
+ SkMatrix fViewMatrix;
+ GrColor fColor;
+ bool fUsesLocalCoords;
+ bool fColorIgnored;
+ bool fCoverageIgnored;
+ bool fMiterStroke;
+ bool fCanTweakAlphaForCoverage;
+ };
+
+ BatchTracker fBatch;
+ const GrIndexBuffer* fIndexBuffer;
+ SkSTArray<1, Geometry, true> fGeoData;
+};
+
+
+void GrAARectRenderer::geometryStrokeAARect(GrDrawTarget* target,
+ GrPipelineBuilder* pipelineBuilder,
+ GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& devOutside,
+ const SkRect& devOutsideAssist,
+ const SkRect& devInside,
+ bool miterStroke) {
+ GrIndexBuffer* indexBuffer = this->aaStrokeRectIndexBuffer(miterStroke);
+ if (NULL == indexBuffer) {
+ SkDebugf("Failed to create index buffer!\n");
+ return;
+ }
+
+ AAStrokeRectBatch::Geometry geometry;
+ geometry.fColor = color;
+ geometry.fDevOutside = devOutside;
+ geometry.fDevOutsideAssist = devOutsideAssist;
+ geometry.fDevInside = devInside;
+ geometry.fMiterStroke = miterStroke;
+
+ SkAutoTUnref<GrBatch> batch(AAStrokeRectBatch::Create(geometry, viewMatrix, indexBuffer));
+ target->drawBatch(pipelineBuilder, batch);
}
void GrAARectRenderer::fillAANestedRects(GrDrawTarget* target,
projects / platform / upstream / libSkiaSharp.git / commitdiff