| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrTextureOp.h" |
| #include <new> |
| #include "GrAppliedClip.h" |
| #include "GrCaps.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrDrawOpTest.h" |
| #include "GrGeometryProcessor.h" |
| #include "GrMemoryPool.h" |
| #include "GrMeshDrawOp.h" |
| #include "GrOpFlushState.h" |
| #include "GrQuad.h" |
| #include "GrResourceProvider.h" |
| #include "GrShaderCaps.h" |
| #include "GrTexture.h" |
| #include "GrTexturePriv.h" |
| #include "GrTextureProxy.h" |
| #include "SkGr.h" |
| #include "SkMathPriv.h" |
| #include "SkMatrixPriv.h" |
| #include "SkPoint.h" |
| #include "SkPoint3.h" |
| #include "SkRectPriv.h" |
| #include "SkTo.h" |
| #include "glsl/GrGLSLColorSpaceXformHelper.h" |
| #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "glsl/GrGLSLGeometryProcessor.h" |
| #include "glsl/GrGLSLVarying.h" |
| #include "glsl/GrGLSLVertexGeoBuilder.h" |
| |
| namespace { |
| |
| enum class Domain : bool { kNo = false, kYes = true }; |
| |
| /** |
| * Geometry Processor that draws a texture modulated by a vertex color (though, this is meant to be |
| * the same value across all vertices of a quad and uses flat interpolation when available). This is |
| * used by TextureOp below. |
| */ |
| class TextureGeometryProcessor : public GrGeometryProcessor { |
| public: |
| template <typename Pos> struct VertexCommon { |
| using Position = Pos; |
| Position fPosition; |
| GrColor fColor; |
| SkPoint fTextureCoords; |
| }; |
| |
| template <typename Pos, Domain D> struct OptionalDomainVertex; |
| template <typename Pos> |
| struct OptionalDomainVertex<Pos, Domain::kNo> : VertexCommon<Pos> { |
| static constexpr Domain kDomain = Domain::kNo; |
| }; |
| template <typename Pos> |
| struct OptionalDomainVertex<Pos, Domain::kYes> : VertexCommon<Pos> { |
| static constexpr Domain kDomain = Domain::kYes; |
| SkRect fTextureDomain; |
| }; |
| |
| template <typename Pos, Domain D, GrAA> struct OptionalAAVertex; |
| template <typename Pos, Domain D> |
| struct OptionalAAVertex<Pos, D, GrAA::kNo> : OptionalDomainVertex<Pos, D> { |
| static constexpr GrAA kAA = GrAA::kNo; |
| }; |
| template <typename Pos, Domain D> |
| struct OptionalAAVertex<Pos, D, GrAA::kYes> : OptionalDomainVertex<Pos, D> { |
| static constexpr GrAA kAA = GrAA::kYes; |
| SkPoint3 fEdges[4]; |
| }; |
| |
| template <typename Pos, Domain D, GrAA AA> |
| using Vertex = OptionalAAVertex<Pos, D, AA>; |
| |
| static sk_sp<GrGeometryProcessor> Make(GrTextureType textureType, GrPixelConfig textureConfig, |
| const GrSamplerState::Filter filter, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform, |
| bool coverageAA, bool perspective, Domain domain, |
| const GrShaderCaps& caps) { |
| return sk_sp<TextureGeometryProcessor>(new TextureGeometryProcessor( |
| textureType, textureConfig, filter, std::move(textureColorSpaceXform), |
| std::move(paintColorSpaceXform), coverageAA, perspective, domain, caps)); |
| } |
| |
| const char* name() const override { return "TextureGeometryProcessor"; } |
| |
| void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder* b) const override { |
| b->add32(GrColorSpaceXform::XformKey(fTextureColorSpaceXform.get())); |
| b->add32(GrColorSpaceXform::XformKey(fPaintColorSpaceXform.get())); |
| uint32_t x = this->usesCoverageEdgeAA() ? 0 : 1; |
| x |= kFloat3_GrVertexAttribType == fPositions.cpuType() ? 0 : 2; |
| x |= fDomain.isInitialized() ? 4 : 0; |
| b->add32(x); |
| } |
| |
| GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps& caps) const override { |
| class GLSLProcessor : public GrGLSLGeometryProcessor { |
| public: |
| void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc, |
| FPCoordTransformIter&& transformIter) override { |
| const auto& textureGP = proc.cast<TextureGeometryProcessor>(); |
| this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter); |
| fTextureColorSpaceXformHelper.setData( |
| pdman, textureGP.fTextureColorSpaceXform.get()); |
| fPaintColorSpaceXformHelper.setData(pdman, textureGP.fPaintColorSpaceXform.get()); |
| } |
| |
| private: |
| void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
| using Interpolation = GrGLSLVaryingHandler::Interpolation; |
| const auto& textureGP = args.fGP.cast<TextureGeometryProcessor>(); |
| fTextureColorSpaceXformHelper.emitCode( |
| args.fUniformHandler, textureGP.fTextureColorSpaceXform.get()); |
| fPaintColorSpaceXformHelper.emitCode( |
| args.fUniformHandler, textureGP.fPaintColorSpaceXform.get(), |
| kVertex_GrShaderFlag); |
| if (kFloat2_GrVertexAttribType == textureGP.fPositions.cpuType()) { |
| args.fVaryingHandler->setNoPerspective(); |
| } |
| args.fVaryingHandler->emitAttributes(textureGP); |
| gpArgs->fPositionVar = textureGP.fPositions.asShaderVar(); |
| |
| this->emitTransforms(args.fVertBuilder, |
| args.fVaryingHandler, |
| args.fUniformHandler, |
| textureGP.fTextureCoords.asShaderVar(), |
| args.fFPCoordTransformHandler); |
| if (fPaintColorSpaceXformHelper.isNoop()) { |
| args.fVaryingHandler->addPassThroughAttribute( |
| textureGP.fColors, args.fOutputColor, Interpolation::kCanBeFlat); |
| } else { |
| GrGLSLVarying varying(kHalf4_GrSLType); |
| args.fVaryingHandler->addVarying("color", &varying); |
| args.fVertBuilder->codeAppend("half4 color = "); |
| args.fVertBuilder->appendColorGamutXform(textureGP.fColors.name(), |
| &fPaintColorSpaceXformHelper); |
| args.fVertBuilder->codeAppend(";"); |
| args.fVertBuilder->codeAppendf("%s = half4(color.rgb * color.a, color.a);", |
| varying.vsOut()); |
| args.fFragBuilder->codeAppendf("%s = %s;", args.fOutputColor, varying.fsIn()); |
| } |
| args.fFragBuilder->codeAppend("float2 texCoord;"); |
| args.fVaryingHandler->addPassThroughAttribute(textureGP.fTextureCoords, "texCoord"); |
| if (textureGP.fDomain.isInitialized()) { |
| args.fFragBuilder->codeAppend("float4 domain;"); |
| args.fVaryingHandler->addPassThroughAttribute( |
| textureGP.fDomain, "domain", |
| GrGLSLVaryingHandler::Interpolation::kCanBeFlat); |
| args.fFragBuilder->codeAppend( |
| "texCoord = clamp(texCoord, domain.xy, domain.zw);"); |
| } |
| args.fFragBuilder->codeAppendf("%s = ", args.fOutputColor); |
| args.fFragBuilder->appendTextureLookupAndModulate( |
| args.fOutputColor, args.fTexSamplers[0], "texCoord", kFloat2_GrSLType, |
| &fTextureColorSpaceXformHelper); |
| args.fFragBuilder->codeAppend(";"); |
| if (textureGP.usesCoverageEdgeAA()) { |
| bool mulByFragCoordW = false; |
| GrGLSLVarying aaDistVarying(kFloat4_GrSLType, |
| GrGLSLVarying::Scope::kVertToFrag); |
| if (kFloat3_GrVertexAttribType == textureGP.fPositions.cpuType()) { |
| args.fVaryingHandler->addVarying("aaDists", &aaDistVarying); |
| // The distance from edge equation e to homogeneous point p=sk_Position |
| // is e.x*p.x/p.w + e.y*p.y/p.w + e.z. However, we want screen space |
| // interpolation of this distance. We can do this by multiplying the |
| // varying in the VS by p.w and then multiplying by sk_FragCoord.w in |
| // the FS. So we output e.x*p.x + e.y*p.y + e.z * p.w |
| args.fVertBuilder->codeAppendf( |
| R"(%s = float4(dot(aaEdge0, %s), dot(aaEdge1, %s), |
| dot(aaEdge2, %s), dot(aaEdge3, %s));)", |
| aaDistVarying.vsOut(), textureGP.fPositions.name(), |
| textureGP.fPositions.name(), textureGP.fPositions.name(), |
| textureGP.fPositions.name()); |
| mulByFragCoordW = true; |
| } else { |
| args.fVaryingHandler->addVarying("aaDists", &aaDistVarying); |
| args.fVertBuilder->codeAppendf( |
| R"(%s = float4(dot(aaEdge0.xy, %s.xy) + aaEdge0.z, |
| dot(aaEdge1.xy, %s.xy) + aaEdge1.z, |
| dot(aaEdge2.xy, %s.xy) + aaEdge2.z, |
| dot(aaEdge3.xy, %s.xy) + aaEdge3.z);)", |
| aaDistVarying.vsOut(), textureGP.fPositions.name(), |
| textureGP.fPositions.name(), textureGP.fPositions.name(), |
| textureGP.fPositions.name()); |
| } |
| args.fFragBuilder->codeAppendf( |
| "float mindist = min(min(%s.x, %s.y), min(%s.z, %s.w));", |
| aaDistVarying.fsIn(), aaDistVarying.fsIn(), aaDistVarying.fsIn(), |
| aaDistVarying.fsIn()); |
| if (mulByFragCoordW) { |
| args.fFragBuilder->codeAppend("mindist *= sk_FragCoord.w;"); |
| } |
| args.fFragBuilder->codeAppendf("%s = float4(saturate(mindist));", |
| args.fOutputCoverage); |
| } else { |
| args.fFragBuilder->codeAppendf("%s = float4(1);", args.fOutputCoverage); |
| } |
| } |
| GrGLSLColorSpaceXformHelper fTextureColorSpaceXformHelper; |
| GrGLSLColorSpaceXformHelper fPaintColorSpaceXformHelper; |
| }; |
| return new GLSLProcessor; |
| } |
| |
| bool usesCoverageEdgeAA() const { return SkToBool(fAAEdges[0].isInitialized()); } |
| |
| private: |
| TextureGeometryProcessor(GrTextureType textureType, GrPixelConfig textureConfig, |
| GrSamplerState::Filter filter, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform, bool coverageAA, |
| bool perspective, Domain domain, const GrShaderCaps& caps) |
| : INHERITED(kTextureGeometryProcessor_ClassID) |
| , fTextureColorSpaceXform(std::move(textureColorSpaceXform)) |
| , fPaintColorSpaceXform(std::move(paintColorSpaceXform)) |
| , fSampler(textureType, textureConfig, filter) { |
| this->setTextureSamplerCnt(1); |
| |
| if (perspective) { |
| fPositions = {"position", kFloat3_GrVertexAttribType, kFloat3_GrSLType}; |
| } else { |
| fPositions = {"position", kFloat2_GrVertexAttribType, kFloat2_GrSLType}; |
| } |
| fColors = {"color", kUByte4_norm_GrVertexAttribType, kHalf4_GrSLType}; |
| fTextureCoords = {"textureCoords", kFloat2_GrVertexAttribType, kFloat2_GrSLType}; |
| int vertexAttributeCnt = 3; |
| |
| if (domain == Domain::kYes) { |
| fDomain = {"domain", kFloat4_GrVertexAttribType, kFloat4_GrSLType}; |
| ++vertexAttributeCnt; |
| } |
| if (coverageAA) { |
| fAAEdges[0] = {"aaEdge0", kFloat3_GrVertexAttribType, kFloat3_GrSLType}; |
| fAAEdges[1] = {"aaEdge1", kFloat3_GrVertexAttribType, kFloat3_GrSLType}; |
| fAAEdges[2] = {"aaEdge2", kFloat3_GrVertexAttribType, kFloat3_GrSLType}; |
| fAAEdges[3] = {"aaEdge3", kFloat3_GrVertexAttribType, kFloat3_GrSLType}; |
| vertexAttributeCnt += 4; |
| } |
| this->setVertexAttributeCnt(vertexAttributeCnt); |
| } |
| |
| const Attribute& onVertexAttribute(int i) const override { |
| return IthInitializedAttribute(i, fPositions, fColors, fTextureCoords, fDomain, fAAEdges[0], |
| fAAEdges[1], fAAEdges[2], fAAEdges[3]); |
| } |
| |
| const TextureSampler& onTextureSampler(int) const override { return fSampler; } |
| |
| Attribute fPositions; |
| Attribute fColors; |
| Attribute fTextureCoords; |
| Attribute fDomain; |
| Attribute fAAEdges[4]; |
| sk_sp<GrColorSpaceXform> fTextureColorSpaceXform; |
| sk_sp<GrColorSpaceXform> fPaintColorSpaceXform; |
| TextureSampler fSampler; |
| |
| typedef GrGeometryProcessor INHERITED; |
| }; |
| |
| // This computes the four edge equations for a quad, then outsets them and optionally computes a new |
| // quad as the intersection points of the outset edges. 'x' and 'y' contain the original points as |
| // input and the outset points as output. 'a', 'b', and 'c' are the edge equation coefficients on |
| // output. |
| static void compute_quad_edges_and_outset_vertices(GrQuadAAFlags aaFlags, Sk4f* x, Sk4f* y, Sk4f* a, |
| Sk4f* b, Sk4f* c, bool outsetCorners) { |
| static constexpr auto fma = SkNx_fma<4, float>; |
| // These rotate the points/edge values either clockwise or counterclockwise assuming tri strip |
| // order. |
| auto nextCW = [](const Sk4f& v) { return SkNx_shuffle<2, 0, 3, 1>(v); }; |
| auto nextCCW = [](const Sk4f& v) { return SkNx_shuffle<1, 3, 0, 2>(v); }; |
| |
| // Compute edge equations for the quad. |
| auto xnext = nextCCW(*x); |
| auto ynext = nextCCW(*y); |
| // xdiff and ydiff will comprise the normalized vectors pointing along each quad edge. |
| auto xdiff = xnext - *x; |
| auto ydiff = ynext - *y; |
| auto invLengths = fma(xdiff, xdiff, ydiff * ydiff).rsqrt(); |
| xdiff *= invLengths; |
| ydiff *= invLengths; |
| |
| // Use above vectors to compute edge equations. |
| *c = fma(xnext, *y, -ynext * *x) * invLengths; |
| // Make sure the edge equations have their normals facing into the quad in device space. |
| auto test = fma(ydiff, nextCW(*x), fma(-xdiff, nextCW(*y), *c)); |
| if ((test < Sk4f(0)).anyTrue()) { |
| *a = -ydiff; |
| *b = xdiff; |
| *c = -*c; |
| } else { |
| *a = ydiff; |
| *b = -xdiff; |
| } |
| // Outset the edge equations so aa coverage evaluates to zero half a pixel away from the |
| // original quad edge. |
| *c += 0.5f; |
| |
| if (aaFlags != GrQuadAAFlags::kAll) { |
| // This order is the same order the edges appear in xdiff/ydiff and therefore as the |
| // edges in a/b/c. |
| auto mask = Sk4f(GrQuadAAFlags::kLeft & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kBottom & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kTop & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kRight & aaFlags ? 1.f : 0.f); |
| // Outset edge equations for masked out edges another pixel so that they always evaluate |
| // >= 1. |
| *c += (1.f - mask); |
| if (outsetCorners) { |
| // Do the vertex outset. |
| mask *= 0.5f; |
| auto maskCW = nextCW(mask); |
| *x += maskCW * -xdiff + mask * nextCW(xdiff); |
| *y += maskCW * -ydiff + mask * nextCW(ydiff); |
| } |
| } else if (outsetCorners) { |
| *x += 0.5f * (-xdiff + nextCW(xdiff)); |
| *y += 0.5f * (-ydiff + nextCW(ydiff)); |
| } |
| } |
| |
| namespace { |
| // This is a class soley so it can be partially specialized (functions cannot be). |
| template <typename V, GrAA AA = V::kAA, typename Position = typename V::Position> |
| class VertexAAHandler; |
| |
| template<typename V> class VertexAAHandler<V, GrAA::kNo, SkPoint> { |
| public: |
| static void AssignPositionsAndTexCoords(V* vertices, const GrPerspQuad& quad, |
| GrQuadAAFlags aaFlags, const SkRect& texRect) { |
| // Should be kNone for non-AA and kAll for MSAA. |
| SkASSERT(aaFlags == GrQuadAAFlags::kNone || aaFlags == GrQuadAAFlags::kAll); |
| SkASSERT((quad.w4f() == Sk4f(1.f)).allTrue()); |
| SkPointPriv::SetRectTriStrip(&vertices[0].fTextureCoords, texRect, sizeof(V)); |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = {quad.x(i), quad.y(i)}; |
| } |
| } |
| }; |
| |
| template<typename V> class VertexAAHandler<V, GrAA::kNo, SkPoint3> { |
| public: |
| static void AssignPositionsAndTexCoords(V* vertices, const GrPerspQuad& quad, |
| GrQuadAAFlags aaFlags, const SkRect& texRect) { |
| // Should be kNone for non-AA and kAll for MSAA. |
| SkASSERT(aaFlags == GrQuadAAFlags::kNone || aaFlags == GrQuadAAFlags::kAll); |
| SkPointPriv::SetRectTriStrip(&vertices[0].fTextureCoords, texRect, sizeof(V)); |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = quad.point(i); |
| } |
| } |
| }; |
| |
| template<typename V> class VertexAAHandler<V, GrAA::kYes, SkPoint> { |
| public: |
| static void AssignPositionsAndTexCoords(V* vertices, const GrPerspQuad& quad, |
| GrQuadAAFlags aaFlags, const SkRect& texRect) { |
| SkASSERT((quad.w4f() == Sk4f(1.f)).allTrue()); |
| auto x = quad.x4f(); |
| auto y = quad.y4f(); |
| Sk4f a, b, c; |
| compute_quad_edges_and_outset_vertices(aaFlags, &x, &y, &a, &b, &c, true); |
| |
| // Faster to store the Sk4fs all at once rather than element-by-element into vertices. |
| float xs[4], ys[4], as[4], bs[4], cs[4]; |
| x.store(xs); |
| y.store(ys); |
| a.store(as); |
| b.store(bs); |
| c.store(cs); |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = {xs[i], ys[i]}; |
| for (int j = 0; j < 4; ++j) { |
| vertices[i].fEdges[j] = {as[j], bs[j], cs[j]}; |
| } |
| } |
| |
| AssignTexCoords(vertices, quad, texRect); |
| } |
| |
| private: |
| static void AssignTexCoords(V* vertices, const GrPerspQuad& quad, const SkRect& tex) { |
| SkMatrix q = SkMatrix::MakeAll(quad.x(0), quad.x(1), quad.x(2), |
| quad.y(0), quad.y(1), quad.y(2), |
| 1.f, 1.f, 1.f); |
| SkMatrix qinv; |
| if (!q.invert(&qinv)) { |
| return; |
| } |
| SkMatrix t = SkMatrix::MakeAll(tex.fLeft, tex.fLeft, tex.fRight, |
| tex.fTop, tex.fBottom, tex.fTop, |
| 1.f, 1.f, 1.f); |
| SkMatrix map; |
| map.setConcat(t, qinv); |
| SkMatrixPriv::MapPointsWithStride(map, &vertices[0].fTextureCoords, sizeof(V), |
| &vertices[0].fPosition, sizeof(V), 4); |
| } |
| }; |
| |
| template<typename V> class VertexAAHandler<V, GrAA::kYes, SkPoint3> { |
| public: |
| static void AssignPositionsAndTexCoords(V* vertices, const GrPerspQuad& quad, |
| GrQuadAAFlags aaFlags, const SkRect& texRect) { |
| auto x = quad.x4f(); |
| auto y = quad.y4f(); |
| auto iw = quad.iw4f(); |
| |
| Sk4f a, b, c; |
| auto x2d = x * iw; |
| auto y2d = y * iw; |
| compute_quad_edges_and_outset_vertices(aaFlags, &x2d, &y2d, &a, &b, &c, false); |
| auto w = quad.w4f(); |
| static const float kOutset = 0.5f; |
| if ((GrQuadAAFlags::kLeft | GrQuadAAFlags::kRight) & aaFlags) { |
| // For each entry in x the equivalent entry in opX is the left/right opposite and so on. |
| Sk4f opX = SkNx_shuffle<2, 3, 0, 1>(x); |
| Sk4f opW = SkNx_shuffle<2, 3, 0, 1>(w); |
| Sk4f opY = SkNx_shuffle<2, 3, 0, 1>(y); |
| // vx/vy holds the device space left-to-right vectors along top and bottom of the quad. |
| Sk2f vx = SkNx_shuffle<2, 3>(x2d) - SkNx_shuffle<0, 1>(x2d); |
| Sk2f vy = SkNx_shuffle<2, 3>(y2d) - SkNx_shuffle<0, 1>(y2d); |
| Sk2f len = SkNx_fma(vx, vx, vy * vy).sqrt(); |
| // For each device space corner, devP, label its left/right opposite device space point |
| // opDevPt. The new device space point is opDevPt + s (devPt - opDevPt) where s is |
| // (length(devPt - opDevPt) + 0.5) / length(devPt - opDevPt); |
| Sk4f s = SkNx_shuffle<0, 1, 0, 1>((len + kOutset) / len); |
| // Compute t in homogeneous space from s using similar triangles so that we can produce |
| // homogeneous outset vertices for perspective-correct interpolation. |
| Sk4f sOpW = s * opW; |
| Sk4f t = sOpW / (sOpW + (1.f - s) * w); |
| // mask is used to make the t values be 1 when the left/right side is not antialiased. |
| Sk4f mask(GrQuadAAFlags::kLeft & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kLeft & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kRight & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kRight & aaFlags ? 1.f : 0.f); |
| t = t * mask + (1.f - mask); |
| x = opX + t * (x - opX); |
| y = opY + t * (y - opY); |
| w = opW + t * (w - opW); |
| if ((GrQuadAAFlags::kTop | GrQuadAAFlags::kBottom) & aaFlags) { |
| // Update the 2D points for the top/bottom calculation. |
| iw = w.invert(); |
| x2d = x * iw; |
| y2d = y * iw; |
| } |
| } |
| |
| if ((GrQuadAAFlags::kTop | GrQuadAAFlags::kBottom) & aaFlags) { |
| // This operates the same as above but for top/bottom rather than left/right. |
| Sk4f opX = SkNx_shuffle<1, 0, 3, 2>(x); |
| Sk4f opW = SkNx_shuffle<1, 0, 3, 2>(w); |
| Sk4f opY = SkNx_shuffle<1, 0, 3, 2>(y); |
| |
| Sk2f vx = SkNx_shuffle<1, 3>(x2d) - SkNx_shuffle<0, 2>(x2d); |
| Sk2f vy = SkNx_shuffle<1, 3>(y2d) - SkNx_shuffle<0, 2>(y2d); |
| Sk2f len = SkNx_fma(vx, vx, vy * vy).sqrt(); |
| |
| Sk4f s = SkNx_shuffle<0, 0, 1, 1>((len + kOutset) / len); |
| |
| Sk4f sOpW = s * opW; |
| Sk4f t = sOpW / (sOpW + (1.f - s) * w); |
| |
| Sk4f mask(GrQuadAAFlags::kTop & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kBottom & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kTop & aaFlags ? 1.f : 0.f, |
| GrQuadAAFlags::kBottom & aaFlags ? 1.f : 0.f); |
| t = t * mask + (1.f - mask); |
| x = opX + t * (x - opX); |
| y = opY + t * (y - opY); |
| w = opW + t * (w - opW); |
| } |
| // Faster to store the Sk4fs all at once rather than element-by-element into vertices. |
| float xs[4], ys[4], ws[4], as[4], bs[4], cs[4]; |
| x.store(xs); |
| y.store(ys); |
| w.store(ws); |
| a.store(as); |
| b.store(bs); |
| c.store(cs); |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = {xs[i], ys[i], ws[i]}; |
| for (int j = 0; j < 4; ++j) { |
| vertices[i].fEdges[j] = {as[j], bs[j], cs[j]}; |
| } |
| } |
| |
| AssignTexCoords(vertices, quad, texRect); |
| } |
| |
| private: |
| static void AssignTexCoords(V* vertices, const GrPerspQuad& quad, const SkRect& tex) { |
| SkMatrix q = SkMatrix::MakeAll(quad.x(0), quad.x(1), quad.x(2), |
| quad.y(0), quad.y(1), quad.y(2), |
| quad.w(0), quad.w(1), quad.w(2)); |
| SkMatrix qinv; |
| if (!q.invert(&qinv)) { |
| return; |
| } |
| SkMatrix t = SkMatrix::MakeAll(tex.fLeft, tex.fLeft, tex.fRight, |
| tex.fTop, tex.fBottom, tex.fTop, |
| 1.f, 1.f, 1.f); |
| SkMatrix map; |
| map.setConcat(t, qinv); |
| SkPoint3 tempTexCoords[4]; |
| SkMatrixPriv::MapHomogeneousPointsWithStride(map, tempTexCoords, sizeof(SkPoint3), |
| &vertices[0].fPosition, sizeof(V), 4); |
| for (int i = 0; i < 4; ++i) { |
| auto invW = 1.f / tempTexCoords[i].fZ; |
| vertices[i].fTextureCoords.fX = tempTexCoords[i].fX * invW; |
| vertices[i].fTextureCoords.fY = tempTexCoords[i].fY * invW; |
| } |
| } |
| }; |
| |
| template <typename V, Domain D = V::kDomain> struct DomainAssigner; |
| |
| template <typename V> struct DomainAssigner<V, Domain::kYes> { |
| static void Assign(V* vertices, Domain domain, GrSamplerState::Filter filter, |
| const SkRect& srcRect, GrSurfaceOrigin origin, float iw, float ih) { |
| static constexpr SkRect kLargeRect = {-2, -2, 2, 2}; |
| SkRect domainRect; |
| if (domain == Domain::kYes) { |
| auto ltrb = Sk4f::Load(&srcRect); |
| if (filter == GrSamplerState::Filter::kBilerp) { |
| auto rblt = SkNx_shuffle<2, 3, 0, 1>(ltrb); |
| auto whwh = (rblt - ltrb).abs(); |
| auto c = (rblt + ltrb) * 0.5f; |
| static const Sk4f kOffsets = {0.5f, 0.5f, -0.5f, -0.5f}; |
| ltrb = (whwh < 1.f).thenElse(c, ltrb + kOffsets); |
| } |
| ltrb *= Sk4f(iw, ih, iw, ih); |
| if (origin == kBottomLeft_GrSurfaceOrigin) { |
| static const Sk4f kMul = {1.f, -1.f, 1.f, -1.f}; |
| static const Sk4f kAdd = {0.f, 1.f, 0.f, 1.f}; |
| ltrb = SkNx_shuffle<0, 3, 2, 1>(kMul * ltrb + kAdd); |
| } |
| ltrb.store(&domainRect); |
| } else { |
| domainRect = kLargeRect; |
| } |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fTextureDomain = domainRect; |
| } |
| } |
| }; |
| |
| template <typename V> struct DomainAssigner<V, Domain::kNo> { |
| static void Assign(V*, Domain domain, GrSamplerState::Filter, const SkRect&, GrSurfaceOrigin, |
| float iw, float ih) { |
| SkASSERT(domain == Domain::kNo); |
| } |
| }; |
| |
| } // anonymous namespace |
| |
| template <typename V> |
| static void tessellate_quad(const GrPerspQuad& devQuad, GrQuadAAFlags aaFlags, |
| const SkRect& srcRect, GrColor color, GrSurfaceOrigin origin, |
| GrSamplerState::Filter filter, V* vertices, SkScalar iw, SkScalar ih, |
| Domain domain) { |
| SkRect texRect = { |
| iw * srcRect.fLeft, |
| ih * srcRect.fTop, |
| iw * srcRect.fRight, |
| ih * srcRect.fBottom |
| }; |
| if (origin == kBottomLeft_GrSurfaceOrigin) { |
| texRect.fTop = 1.f - texRect.fTop; |
| texRect.fBottom = 1.f - texRect.fBottom; |
| } |
| VertexAAHandler<V>::AssignPositionsAndTexCoords(vertices, devQuad, aaFlags, texRect); |
| vertices[0].fColor = color; |
| vertices[1].fColor = color; |
| vertices[2].fColor = color; |
| vertices[3].fColor = color; |
| DomainAssigner<V>::Assign(vertices, domain, filter, srcRect, origin, iw, ih); |
| } |
| |
| /** |
| * Op that implements GrTextureOp::Make. It draws textured quads. Each quad can modulate against a |
| * the texture by color. The blend with the destination is always src-over. The edges are non-AA. |
| */ |
| class TextureOp final : public GrMeshDrawOp { |
| public: |
| static std::unique_ptr<GrDrawOp> Make(GrContext* context, |
| sk_sp<GrTextureProxy> proxy, |
| GrSamplerState::Filter filter, |
| GrColor color, |
| const SkRect& srcRect, |
| const SkRect& dstRect, |
| GrAAType aaType, |
| GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) { |
| GrOpMemoryPool* pool = context->contextPriv().opMemoryPool(); |
| |
| return pool->allocate<TextureOp>( |
| std::move(proxy), filter, color, srcRect, dstRect, aaType, aaFlags, constraint, |
| viewMatrix, std::move(textureColorSpaceXform), std::move(paintColorSpaceXform)); |
| } |
| static std::unique_ptr<GrDrawOp> Make(GrContext* context, |
| const GrRenderTargetContext::TextureSetEntry set[], |
| int cnt, GrSamplerState::Filter filter, GrColor color, |
| GrAAType aaType, const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) { |
| size_t size = sizeof(TextureOp) + sizeof(Proxy) * (cnt - 1); |
| GrOpMemoryPool* pool = context->contextPriv().opMemoryPool(); |
| void* mem = pool->allocate(size); |
| return std::unique_ptr<GrDrawOp>(new (mem) TextureOp( |
| set, cnt, filter, color, aaType, viewMatrix, std::move(textureColorSpaceXform), |
| std::move(paintColorSpaceXform))); |
| } |
| |
| ~TextureOp() override { |
| for (unsigned p = 0; p < fProxyCnt; ++p) { |
| if (fFinalized) { |
| fProxies[p].fProxy->completedRead(); |
| } else { |
| fProxies[p].fProxy->unref(); |
| } |
| } |
| } |
| |
| const char* name() const override { return "TextureOp"; } |
| |
| void visitProxies(const VisitProxyFunc& func, VisitorType visitor) const override { |
| if (visitor == VisitorType::kAllocatorGather && fCanSkipAllocatorGather) { |
| return; |
| } |
| for (unsigned p = 0; p < fProxyCnt; ++p) { |
| func(fProxies[p].fProxy); |
| } |
| } |
| |
| SkString dumpInfo() const override { |
| SkString str; |
| str.appendf("# draws: %d\n", fQuads.count()); |
| int q = 0; |
| for (unsigned p = 0; p < fProxyCnt; ++p) { |
| str.appendf("Proxy ID: %d, Filter: %d\n", fProxies[p].fProxy->uniqueID().asUInt(), |
| static_cast<int>(fFilter)); |
| for (int i = 0; i < fProxies[p].fQuadCnt; ++i, ++q) { |
| const Quad& quad = fQuads[q]; |
| str.appendf( |
| "%d: Color: 0x%08x, TexRect [L: %.2f, T: %.2f, R: %.2f, B: %.2f] " |
| "Quad [(%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f)]\n", |
| i, quad.color(), quad.srcRect().fLeft, quad.srcRect().fTop, |
| quad.srcRect().fRight, quad.srcRect().fBottom, quad.quad().point(0).fX, |
| quad.quad().point(0).fY, quad.quad().point(1).fX, quad.quad().point(1).fY, |
| quad.quad().point(2).fX, quad.quad().point(2).fY, quad.quad().point(3).fX, |
| quad.quad().point(3).fY); |
| } |
| } |
| str += INHERITED::dumpInfo(); |
| return str; |
| } |
| |
| RequiresDstTexture finalize(const GrCaps& caps, const GrAppliedClip* clip) override { |
| SkASSERT(!fFinalized); |
| fFinalized = true; |
| for (unsigned p = 0; p < fProxyCnt; ++p) { |
| fProxies[p].fProxy->addPendingRead(); |
| fProxies[p].fProxy->unref(); |
| } |
| return RequiresDstTexture::kNo; |
| } |
| |
| FixedFunctionFlags fixedFunctionFlags() const override { |
| return this->aaType() == GrAAType::kMSAA ? FixedFunctionFlags::kUsesHWAA |
| : FixedFunctionFlags::kNone; |
| } |
| |
| DEFINE_OP_CLASS_ID |
| |
| private: |
| friend class ::GrOpMemoryPool; |
| |
| TextureOp(sk_sp<GrTextureProxy> proxy, GrSamplerState::Filter filter, GrColor color, |
| const SkRect& srcRect, const SkRect& dstRect, GrAAType aaType, GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) |
| : INHERITED(ClassID()) |
| , fTextureColorSpaceXform(std::move(textureColorSpaceXform)) |
| , fPaintColorSpaceXform(std::move(paintColorSpaceXform)) |
| , fFilter(filter) |
| , fAAType(static_cast<unsigned>(aaType)) |
| , fFinalized(0) { |
| switch (aaType) { |
| case GrAAType::kNone: |
| aaFlags = GrQuadAAFlags::kNone; |
| break; |
| case GrAAType::kCoverage: |
| if (aaFlags == GrQuadAAFlags::kNone) { |
| fAAType = static_cast<unsigned>(GrAAType::kNone); |
| } |
| break; |
| case GrAAType::kMSAA: |
| aaFlags = GrQuadAAFlags::kAll; |
| break; |
| case GrAAType::kMixedSamples: |
| SK_ABORT("Should not use mixed sample AA"); |
| break; |
| } |
| fPerspective = static_cast<unsigned>(viewMatrix.hasPerspective()); |
| auto quad = GrPerspQuad(dstRect, viewMatrix); |
| auto bounds = quad.bounds(); |
| // We expect our caller to have already caught this optimization. |
| SkASSERT(!srcRect.contains(proxy->getWorstCaseBoundsRect()) || |
| constraint == SkCanvas::kFast_SrcRectConstraint); |
| if (viewMatrix.rectStaysRect()) { |
| // Disable filtering when there is no scaling or fractional translation. |
| // Disable coverage AA when rect falls on integers in device space. |
| if (SkScalarIsInt(bounds.fLeft) && SkScalarIsInt(bounds.fTop) && |
| SkScalarIsInt(bounds.fRight) && SkScalarIsInt(bounds.fBottom)) { |
| if (viewMatrix.isScaleTranslate()) { |
| if (bounds.width() == srcRect.width() && bounds.height() == srcRect.height()) { |
| fFilter = GrSamplerState::Filter::kNearest; |
| } |
| } else { |
| if (bounds.width() == srcRect.height() && bounds.height() == srcRect.width()) { |
| fFilter = GrSamplerState::Filter::kNearest; |
| } |
| } |
| if (GrAAType::kCoverage == this->aaType()) { |
| fAAType = static_cast<unsigned>(GrAAType::kNone); |
| aaFlags = GrQuadAAFlags::kNone; |
| } |
| } |
| } |
| // We may have had a strict constraint with nearest filter solely due to possible AA bloat. |
| // If we don't have (or determined we don't need) coverage AA then we can skip using a |
| // domain. |
| if (constraint == SkCanvas::kStrict_SrcRectConstraint && |
| fFilter == GrSamplerState::Filter::kNearest && |
| this->aaType() != GrAAType::kCoverage) { |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| const auto& draw = fQuads.emplace_back(srcRect, quad, aaFlags, constraint, color); |
| fProxyCnt = 1; |
| fProxies[0] = {proxy.release(), 1}; |
| this->setBounds(bounds, HasAABloat(this->aaType() == GrAAType::kCoverage), IsZeroArea::kNo); |
| fDomain = static_cast<unsigned>(draw.domain()); |
| fCanSkipAllocatorGather = |
| static_cast<unsigned>(fProxies[0].fProxy->canSkipResourceAllocator()); |
| } |
| TextureOp(const GrRenderTargetContext::TextureSetEntry set[], int cnt, |
| GrSamplerState::Filter filter, GrColor color, GrAAType aaType, |
| const SkMatrix& viewMatrix, sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) |
| : INHERITED(ClassID()) |
| , fTextureColorSpaceXform(std::move(textureColorSpaceXform)) |
| , fPaintColorSpaceXform(std::move(paintColorSpaceXform)) |
| , fFilter(filter) |
| , fAAType(static_cast<unsigned>(aaType)) |
| , fFinalized(0) { |
| fQuads.reserve(cnt); |
| fProxyCnt = SkToUInt(cnt); |
| SkRect bounds = SkRectPriv::MakeLargestInverted(); |
| bool aa = false; |
| fCanSkipAllocatorGather = static_cast<unsigned>(true); |
| for (unsigned p = 0; p < fProxyCnt; ++p) { |
| fProxies[p].fProxy = SkRef(set[p].fProxy.get()); |
| fProxies[p].fQuadCnt = 1; |
| SkASSERT(fProxies[p].fProxy->textureType() == fProxies[0].fProxy->textureType()); |
| SkASSERT(fProxies[p].fProxy->config() == fProxies[0].fProxy->config()); |
| if (!fProxies[p].fProxy->canSkipResourceAllocator()) { |
| fCanSkipAllocatorGather = static_cast<unsigned>(false); |
| } |
| auto quad = GrPerspQuad(set[p].fDstRect, viewMatrix); |
| bounds.joinPossiblyEmptyRect(quad.bounds()); |
| GrQuadAAFlags aaFlags = set[p].fAAFlags; |
| switch (aaType) { |
| case GrAAType::kNone: |
| aaFlags = GrQuadAAFlags::kNone; |
| break; |
| case GrAAType::kCoverage: |
| break; |
| case GrAAType::kMSAA: |
| aaFlags = GrQuadAAFlags::kAll; |
| break; |
| case GrAAType::kMixedSamples: |
| SK_ABORT("Should not use mixed sample AA"); |
| break; |
| } |
| aa = aa || (set[p].fAAFlags != GrQuadAAFlags::kNone); |
| fQuads.emplace_back(set[p].fSrcRect, quad, aaFlags, SkCanvas::kFast_SrcRectConstraint, |
| color); |
| } |
| if (!aa) { |
| fAAType = static_cast<unsigned>(GrAAType::kNone); |
| } |
| this->setBounds(bounds, HasAABloat(this->aaType() == GrAAType::kCoverage), IsZeroArea::kNo); |
| fPerspective = static_cast<unsigned>(viewMatrix.hasPerspective()); |
| fDomain = static_cast<unsigned>(false); |
| } |
| |
| template <typename Pos, Domain D, GrAA AA> |
| void tess(void* v, const GrGeometryProcessor* gp, const GrTextureProxy* proxy, int start, |
| int cnt) const { |
| TRACE_EVENT0("skia", TRACE_FUNC); |
| using Vertex = TextureGeometryProcessor::Vertex<Pos, D, AA>; |
| SkASSERT(gp->debugOnly_vertexStride() == sizeof(Vertex)); |
| auto vertices = static_cast<Vertex*>(v); |
| auto origin = proxy->origin(); |
| const auto* texture = proxy->peekTexture(); |
| float iw = 1.f / texture->width(); |
| float ih = 1.f / texture->height(); |
| |
| for (int i = start; i < start + cnt; ++i) { |
| const auto q = fQuads[i]; |
| tessellate_quad<Vertex>(q.quad(), q.aaFlags(), q.srcRect(), q.color(), origin, fFilter, |
| vertices, iw, ih, q.domain()); |
| vertices += 4; |
| } |
| } |
| |
| void onPrepareDraws(Target* target) override { |
| TRACE_EVENT0("skia", TRACE_FUNC); |
| bool hasPerspective = false; |
| Domain domain = Domain::kNo; |
| int numProxies = 0; |
| auto textureType = fProxies[0].fProxy->textureType(); |
| auto config = fProxies[0].fProxy->config(); |
| for (const auto& op : ChainRange<TextureOp>(this)) { |
| hasPerspective |= op.fPerspective; |
| if (op.fDomain) { |
| domain = Domain::kYes; |
| } |
| numProxies += op.fProxyCnt; |
| for (unsigned p = 0; p < op.fProxyCnt; ++p) { |
| auto* proxy = op.fProxies[p].fProxy; |
| if (!proxy->instantiate(target->resourceProvider())) { |
| return; |
| } |
| SkASSERT(proxy->config() == config); |
| SkASSERT(proxy->textureType() == textureType); |
| } |
| } |
| |
| bool coverageAA = GrAAType::kCoverage == this->aaType(); |
| sk_sp<GrGeometryProcessor> gp = TextureGeometryProcessor::Make( |
| textureType, config, fFilter, std::move(fTextureColorSpaceXform), |
| std::move(fPaintColorSpaceXform), coverageAA, hasPerspective, domain, |
| *target->caps().shaderCaps()); |
| GrPipeline::InitArgs args; |
| args.fProxy = target->proxy(); |
| args.fCaps = &target->caps(); |
| args.fResourceProvider = target->resourceProvider(); |
| args.fFlags = 0; |
| if (GrAAType::kMSAA == this->aaType()) { |
| args.fFlags |= GrPipeline::kHWAntialias_Flag; |
| } |
| |
| auto clip = target->detachAppliedClip(); |
| // We'll use a dynamic state array for the GP textures when there are multiple ops. |
| // Otherwise, we use fixed dynamic state to specify the single op's proxy. |
| GrPipeline::DynamicStateArrays* dynamicStateArrays = nullptr; |
| GrPipeline::FixedDynamicState* fixedDynamicState; |
| if (numProxies > 1) { |
| dynamicStateArrays = target->allocDynamicStateArrays(numProxies, 1, false); |
| fixedDynamicState = target->allocFixedDynamicState(clip.scissorState().rect(), 0); |
| } else { |
| fixedDynamicState = target->allocFixedDynamicState(clip.scissorState().rect(), 1); |
| fixedDynamicState->fPrimitiveProcessorTextures[0] = fProxies[0].fProxy; |
| } |
| const auto* pipeline = |
| target->allocPipeline(args, GrProcessorSet::MakeEmptySet(), std::move(clip)); |
| using TessFn = decltype(&TextureOp::tess<SkPoint, Domain::kNo, GrAA::kNo>); |
| #define TESS_FN_AND_VERTEX_SIZE(Point, Domain, AA) \ |
| { \ |
| &TextureOp::tess<Point, Domain, AA>, \ |
| sizeof(TextureGeometryProcessor::Vertex<Point, Domain, AA>) \ |
| } |
| static constexpr struct { |
| TessFn fTessFn; |
| size_t fVertexSize; |
| } kTessFnsAndVertexSizes[] = { |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, Domain::kYes, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, Domain::kYes, GrAA::kYes), |
| }; |
| #undef TESS_FN_AND_VERTEX_SIZE |
| int tessFnIdx = 0; |
| tessFnIdx |= coverageAA ? 0x1 : 0x0; |
| tessFnIdx |= (domain == Domain::kYes) ? 0x2 : 0x0; |
| tessFnIdx |= hasPerspective ? 0x4 : 0x0; |
| |
| SkASSERT(kTessFnsAndVertexSizes[tessFnIdx].fVertexSize == gp->debugOnly_vertexStride()); |
| |
| GrMesh* meshes = target->allocMeshes(numProxies); |
| int m = 0; |
| for (const auto& op : ChainRange<TextureOp>(this)) { |
| int q = 0; |
| for (unsigned p = 0; p < op.fProxyCnt; ++p) { |
| int quadCnt = op.fProxies[p].fQuadCnt; |
| auto* proxy = op.fProxies[p].fProxy; |
| int vstart; |
| const GrBuffer* vbuffer; |
| void* vdata = target->makeVertexSpace(kTessFnsAndVertexSizes[tessFnIdx].fVertexSize, |
| 4 * quadCnt, &vbuffer, &vstart); |
| if (!vdata) { |
| SkDebugf("Could not allocate vertices\n"); |
| return; |
| } |
| |
| (op.*(kTessFnsAndVertexSizes[tessFnIdx].fTessFn))(vdata, gp.get(), proxy, q, |
| quadCnt); |
| |
| if (quadCnt > 1) { |
| meshes[m].setPrimitiveType(GrPrimitiveType::kTriangles); |
| sk_sp<const GrBuffer> ibuffer = |
| target->resourceProvider()->refQuadIndexBuffer(); |
| if (!ibuffer) { |
| SkDebugf("Could not allocate quad indices\n"); |
| return; |
| } |
| meshes[m].setIndexedPatterned(ibuffer.get(), 6, 4, quadCnt, |
| GrResourceProvider::QuadCountOfQuadBuffer()); |
| } else { |
| meshes[m].setPrimitiveType(GrPrimitiveType::kTriangleStrip); |
| meshes[m].setNonIndexedNonInstanced(4); |
| } |
| meshes[m].setVertexData(vbuffer, vstart); |
| if (dynamicStateArrays) { |
| dynamicStateArrays->fPrimitiveProcessorTextures[m] = proxy; |
| } |
| ++m; |
| q += quadCnt; |
| } |
| } |
| target->draw(std::move(gp), pipeline, fixedDynamicState, dynamicStateArrays, meshes, |
| numProxies); |
| } |
| |
| CombineResult onCombineIfPossible(GrOp* t, const GrCaps& caps) override { |
| TRACE_EVENT0("skia", TRACE_FUNC); |
| const auto* that = t->cast<TextureOp>(); |
| if (!GrColorSpaceXform::Equals(fTextureColorSpaceXform.get(), |
| that->fTextureColorSpaceXform.get())) { |
| return CombineResult::kCannotCombine; |
| } |
| if (!GrColorSpaceXform::Equals(fPaintColorSpaceXform.get(), |
| that->fPaintColorSpaceXform.get())) { |
| return CombineResult::kCannotCombine; |
| } |
| // TODO: Should we allow kNone and kCoverage to merge by upgrading kNone to kCoverage? |
| // If we allowed chaining the head op would have to pre-iterate to determine the aa-type. |
| if (this->aaType() != that->aaType()) { |
| return CombineResult::kCannotCombine; |
| } |
| if (fFilter != that->fFilter) { |
| return CombineResult::kCannotCombine; |
| } |
| auto thisProxy = fProxies[0].fProxy; |
| auto thatProxy = that->fProxies[0].fProxy; |
| if (fProxyCnt > 1 || that->fProxyCnt > 1 || |
| thisProxy->uniqueID() != thatProxy->uniqueID() || that->isChained()) { |
| // We can't merge across different proxies (and we're disallowed from merging when |
| // 'that' is chained. Check if we can be chained with 'that'. |
| if (thisProxy->config() == thatProxy->config() && |
| thisProxy->textureType() == thatProxy->textureType() && |
| caps.dynamicStateArrayGeometryProcessorTextureSupport()) { |
| return CombineResult::kMayChain; |
| } |
| return CombineResult::kCannotCombine; |
| } |
| fProxies[0].fQuadCnt += that->fQuads.count(); |
| fQuads.push_back_n(that->fQuads.count(), that->fQuads.begin()); |
| this->joinBounds(*that); |
| fPerspective |= that->fPerspective; |
| fDomain |= that->fDomain; |
| return CombineResult::kMerged; |
| } |
| |
| GrAAType aaType() const { return static_cast<GrAAType>(fAAType); } |
| |
| class Quad { |
| public: |
| Quad(const SkRect& srcRect, const GrPerspQuad& quad, GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, GrColor color) |
| : fSrcRect(srcRect) |
| , fQuad(quad) |
| , fColor(color) |
| , fHasDomain(constraint == SkCanvas::kStrict_SrcRectConstraint) |
| , fAAFlags(static_cast<unsigned>(aaFlags)) { |
| SkASSERT(fAAFlags == static_cast<unsigned>(aaFlags)); |
| } |
| const GrPerspQuad& quad() const { return fQuad; } |
| const SkRect& srcRect() const { return fSrcRect; } |
| GrColor color() const { return fColor; } |
| Domain domain() const { return Domain(fHasDomain); } |
| GrQuadAAFlags aaFlags() const { return static_cast<GrQuadAAFlags>(fAAFlags); } |
| |
| private: |
| SkRect fSrcRect; |
| GrPerspQuad fQuad; |
| GrColor fColor; |
| unsigned fHasDomain : 1; |
| unsigned fAAFlags : 4; |
| }; |
| struct Proxy { |
| GrTextureProxy* fProxy; |
| int fQuadCnt; |
| }; |
| SkSTArray<1, Quad, true> fQuads; |
| sk_sp<GrColorSpaceXform> fTextureColorSpaceXform; |
| sk_sp<GrColorSpaceXform> fPaintColorSpaceXform; |
| GrSamplerState::Filter fFilter; |
| unsigned fAAType : 2; |
| unsigned fPerspective : 1; |
| unsigned fDomain : 1; |
| // Used to track whether fProxy is ref'ed or has a pending IO after finalize() is called. |
| unsigned fFinalized : 1; |
| unsigned fCanSkipAllocatorGather : 1; |
| unsigned fProxyCnt : 32 - 6; |
| Proxy fProxies[1]; |
| |
| typedef GrMeshDrawOp INHERITED; |
| }; |
| |
| } // anonymous namespace |
| |
| namespace GrTextureOp { |
| |
| std::unique_ptr<GrDrawOp> Make(GrContext* context, |
| sk_sp<GrTextureProxy> proxy, |
| GrSamplerState::Filter filter, |
| GrColor color, |
| const SkRect& srcRect, |
| const SkRect& dstRect, |
| GrAAType aaType, |
| GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) { |
| return TextureOp::Make(context, std::move(proxy), filter, color, srcRect, dstRect, aaType, |
| aaFlags, constraint, viewMatrix, std::move(textureColorSpaceXform), |
| std::move(paintColorSpaceXform)); |
| } |
| |
| std::unique_ptr<GrDrawOp> Make(GrContext* context, |
| const GrRenderTargetContext::TextureSetEntry set[], |
| int cnt, |
| GrSamplerState::Filter filter, |
| GrColor color, |
| GrAAType aaType, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> textureColorSpaceXform, |
| sk_sp<GrColorSpaceXform> paintColorSpaceXform) { |
| return TextureOp::Make(context, set, cnt, filter, color, aaType, viewMatrix, |
| std::move(textureColorSpaceXform), std::move(paintColorSpaceXform)); |
| } |
| |
| } // namespace GrTextureOp |
| |
| #if GR_TEST_UTILS |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrProxyProvider.h" |
| |
| GR_DRAW_OP_TEST_DEFINE(TextureOp) { |
| GrSurfaceDesc desc; |
| desc.fConfig = kRGBA_8888_GrPixelConfig; |
| desc.fHeight = random->nextULessThan(90) + 10; |
| desc.fWidth = random->nextULessThan(90) + 10; |
| auto origin = random->nextBool() ? kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin; |
| GrMipMapped mipMapped = random->nextBool() ? GrMipMapped::kYes : GrMipMapped::kNo; |
| SkBackingFit fit = SkBackingFit::kExact; |
| if (mipMapped == GrMipMapped::kNo) { |
| fit = random->nextBool() ? SkBackingFit::kApprox : SkBackingFit::kExact; |
| } |
| |
| GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); |
| sk_sp<GrTextureProxy> proxy = proxyProvider->createProxy(desc, origin, mipMapped, fit, |
| SkBudgeted::kNo, |
| GrInternalSurfaceFlags::kNone); |
| |
| SkRect rect = GrTest::TestRect(random); |
| SkRect srcRect; |
| srcRect.fLeft = random->nextRangeScalar(0.f, proxy->width() / 2.f); |
| srcRect.fRight = random->nextRangeScalar(0.f, proxy->width()) + proxy->width() / 2.f; |
| srcRect.fTop = random->nextRangeScalar(0.f, proxy->height() / 2.f); |
| srcRect.fBottom = random->nextRangeScalar(0.f, proxy->height()) + proxy->height() / 2.f; |
| SkMatrix viewMatrix = GrTest::TestMatrixPreservesRightAngles(random); |
| GrColor color = SkColorToPremulGrColor(random->nextU()); |
| GrSamplerState::Filter filter = (GrSamplerState::Filter)random->nextULessThan( |
| static_cast<uint32_t>(GrSamplerState::Filter::kMipMap) + 1); |
| while (mipMapped == GrMipMapped::kNo && filter == GrSamplerState::Filter::kMipMap) { |
| filter = (GrSamplerState::Filter)random->nextULessThan( |
| static_cast<uint32_t>(GrSamplerState::Filter::kMipMap) + 1); |
| } |
| auto texXform = GrTest::TestColorXform(random); |
| auto paintXform = GrTest::TestColorXform(random); |
| GrAAType aaType = GrAAType::kNone; |
| if (random->nextBool()) { |
| aaType = (fsaaType == GrFSAAType::kUnifiedMSAA) ? GrAAType::kMSAA : GrAAType::kCoverage; |
| } |
| GrQuadAAFlags aaFlags = GrQuadAAFlags::kNone; |
| aaFlags |= random->nextBool() ? GrQuadAAFlags::kLeft : GrQuadAAFlags::kNone; |
| aaFlags |= random->nextBool() ? GrQuadAAFlags::kTop : GrQuadAAFlags::kNone; |
| aaFlags |= random->nextBool() ? GrQuadAAFlags::kRight : GrQuadAAFlags::kNone; |
| aaFlags |= random->nextBool() ? GrQuadAAFlags::kBottom : GrQuadAAFlags::kNone; |
| auto constraint = random->nextBool() ? SkCanvas::kStrict_SrcRectConstraint |
| : SkCanvas::kFast_SrcRectConstraint; |
| return GrTextureOp::Make(context, std::move(proxy), filter, color, srcRect, rect, aaType, |
| aaFlags, constraint, viewMatrix, std::move(texXform), |
| std::move(paintXform)); |
| } |
| |
| #endif |