| /* |
| * 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 "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 "SkTo.h" |
| #include "glsl/GrGLSLColorSpaceXformHelper.h" |
| #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "glsl/GrGLSLGeometryProcessor.h" |
| #include "glsl/GrGLSLVarying.h" |
| #include "glsl/GrGLSLVertexGeoBuilder.h" |
| #include <new> |
| |
| namespace { |
| |
| enum class MultiTexture : bool { kNo = false, kYes = true }; |
| |
| 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, MultiTexture MT> struct OptionalMultiTextureVertex; |
| template <typename Pos> |
| struct OptionalMultiTextureVertex<Pos, MultiTexture::kNo> : VertexCommon<Pos> { |
| static constexpr MultiTexture kMultiTexture = MultiTexture::kNo; |
| }; |
| template <typename Pos> |
| struct OptionalMultiTextureVertex<Pos, MultiTexture::kYes> : VertexCommon<Pos> { |
| static constexpr MultiTexture kMultiTexture = MultiTexture::kYes; |
| int fTextureIdx; |
| }; |
| |
| template <typename Pos, MultiTexture MT, Domain D> struct OptionalDomainVertex; |
| template <typename Pos, MultiTexture MT> |
| struct OptionalDomainVertex<Pos, MT, Domain::kNo> : OptionalMultiTextureVertex<Pos, MT> { |
| static constexpr Domain kDomain = Domain::kNo; |
| }; |
| template <typename Pos, MultiTexture MT> |
| struct OptionalDomainVertex<Pos, MT, Domain::kYes> : OptionalMultiTextureVertex<Pos, MT> { |
| static constexpr Domain kDomain = Domain::kYes; |
| SkRect fTextureDomain; |
| }; |
| |
| template <typename Pos, MultiTexture MT, Domain D, GrAA> struct OptionalAAVertex; |
| template <typename Pos, MultiTexture MT, Domain D> |
| struct OptionalAAVertex<Pos, MT, D, GrAA::kNo> : OptionalDomainVertex<Pos, MT, D> { |
| static constexpr GrAA kAA = GrAA::kNo; |
| }; |
| template <typename Pos, MultiTexture MT, Domain D> |
| struct OptionalAAVertex<Pos, MT, D, GrAA::kYes> : OptionalDomainVertex<Pos, MT, D> { |
| static constexpr GrAA kAA = GrAA::kYes; |
| SkPoint3 fEdges[4]; |
| }; |
| |
| template <typename Pos, MultiTexture MT, Domain D, GrAA AA> |
| using Vertex = OptionalAAVertex<Pos, MT, D, AA>; |
| |
| // Maximum number of textures supported by this op. Must also be checked against the caps |
| // limit. These numbers were based on some limited experiments on a HP Z840 and Pixel XL 2016 |
| // and could probably use more tuning. |
| #ifdef SK_BUILD_FOR_ANDROID |
| static constexpr int kMaxTextures = 4; |
| #else |
| static constexpr int kMaxTextures = 8; |
| #endif |
| |
| static int SupportsMultitexture(const GrShaderCaps& caps) { |
| return caps.integerSupport() && caps.maxFragmentSamplers() > 1; |
| } |
| |
| static sk_sp<GrGeometryProcessor> Make(sk_sp<GrTextureProxy> proxies[], int proxyCnt, |
| sk_sp<GrColorSpaceXform> csxf, bool coverageAA, |
| bool perspective, Domain domain, |
| const GrSamplerState::Filter filters[], |
| const GrShaderCaps& caps) { |
| // We use placement new to avoid always allocating space for kMaxTextures TextureSampler |
| // instances. |
| int samplerCnt = NumSamplersToUse(proxyCnt, caps); |
| size_t size = sizeof(TextureGeometryProcessor) + sizeof(TextureSampler) * (samplerCnt - 1); |
| void* mem = GrGeometryProcessor::operator new(size); |
| return sk_sp<TextureGeometryProcessor>( |
| new (mem) TextureGeometryProcessor(proxies, proxyCnt, samplerCnt, std::move(csxf), |
| coverageAA, perspective, domain, filters, caps)); |
| } |
| |
| ~TextureGeometryProcessor() override { |
| int cnt = this->numTextureSamplers(); |
| for (int i = 1; i < cnt; ++i) { |
| fSamplers[i].~TextureSampler(); |
| } |
| } |
| |
| const char* name() const override { return "TextureGeometryProcessor"; } |
| |
| void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder* b) const override { |
| b->add32(GrColorSpaceXform::XformKey(fColorSpaceXform.get())); |
| uint32_t x = this->usesCoverageEdgeAA() ? 0 : 1; |
| x |= kFloat3_GrVertexAttribType == fPositions.type() ? 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); |
| fColorSpaceXformHelper.setData(pdman, textureGP.fColorSpaceXform.get()); |
| } |
| |
| private: |
| void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
| using Interpolation = GrGLSLVaryingHandler::Interpolation; |
| const auto& textureGP = args.fGP.cast<TextureGeometryProcessor>(); |
| fColorSpaceXformHelper.emitCode( |
| args.fUniformHandler, textureGP.fColorSpaceXform.get()); |
| if (kFloat2_GrVertexAttribType == textureGP.fPositions.type()) { |
| 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); |
| args.fVaryingHandler->addPassThroughAttribute( |
| textureGP.fColors, args.fOutputColor, Interpolation::kCanBeFlat); |
| 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);"); |
| } |
| if (textureGP.numTextureSamplers() > 1) { |
| // If this changes to float, reconsider Interpolation::kMustBeFlat. |
| SkASSERT(kInt_GrVertexAttribType == textureGP.fTextureIdx.type()); |
| SkASSERT(args.fShaderCaps->integerSupport()); |
| args.fFragBuilder->codeAppend("int texIdx;"); |
| args.fVaryingHandler->addPassThroughAttribute(textureGP.fTextureIdx, "texIdx", |
| Interpolation::kMustBeFlat); |
| args.fFragBuilder->codeAppend("switch (texIdx) {"); |
| for (int i = 0; i < textureGP.numTextureSamplers(); ++i) { |
| args.fFragBuilder->codeAppendf("case %d: %s = ", i, args.fOutputColor); |
| args.fFragBuilder->appendTextureLookupAndModulate(args.fOutputColor, |
| args.fTexSamplers[i], |
| "texCoord", |
| kFloat2_GrSLType, |
| &fColorSpaceXformHelper); |
| args.fFragBuilder->codeAppend("; break;"); |
| } |
| args.fFragBuilder->codeAppend("}"); |
| } else { |
| args.fFragBuilder->codeAppendf("%s = ", args.fOutputColor); |
| args.fFragBuilder->appendTextureLookupAndModulate(args.fOutputColor, |
| args.fTexSamplers[0], |
| "texCoord", |
| kFloat2_GrSLType, |
| &fColorSpaceXformHelper); |
| } |
| args.fFragBuilder->codeAppend(";"); |
| if (textureGP.usesCoverageEdgeAA()) { |
| const char* aaDistName = nullptr; |
| bool mulByFragCoordW = false; |
| // When interpolation is inaccurate we perform the evaluation of the edge |
| // equations in the fragment shader rather than interpolating values computed |
| // in the vertex shader. |
| if (!args.fShaderCaps->interpolantsAreInaccurate()) { |
| GrGLSLVarying aaDistVarying(kFloat4_GrSLType, |
| GrGLSLVarying::Scope::kVertToFrag); |
| if (kFloat3_GrVertexAttribType == textureGP.fPositions.type()) { |
| args.fVaryingHandler->addVarying("aaDists", &aaDistVarying); |
| // The distance from edge equation e to homogenous point p=sk_Position |
| // is e.x*p.x/p.wx + 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()); |
| } |
| aaDistName = aaDistVarying.fsIn(); |
| } else { |
| GrGLSLVarying aaEdgeVarying[4]{ |
| {kFloat3_GrSLType, GrGLSLVarying::Scope::kVertToFrag}, |
| {kFloat3_GrSLType, GrGLSLVarying::Scope::kVertToFrag}, |
| {kFloat3_GrSLType, GrGLSLVarying::Scope::kVertToFrag}, |
| {kFloat3_GrSLType, GrGLSLVarying::Scope::kVertToFrag} |
| }; |
| for (int i = 0; i < 4; ++i) { |
| SkString name; |
| name.printf("aaEdge%d", i); |
| args.fVaryingHandler->addVarying(name.c_str(), &aaEdgeVarying[i], |
| Interpolation::kCanBeFlat); |
| args.fVertBuilder->codeAppendf( |
| "%s = aaEdge%d;", aaEdgeVarying[i].vsOut(), i); |
| } |
| args.fFragBuilder->codeAppendf( |
| R"(float4 aaDists = float4(dot(%s.xy, sk_FragCoord.xy) + %s.z, |
| dot(%s.xy, sk_FragCoord.xy) + %s.z, |
| dot(%s.xy, sk_FragCoord.xy) + %s.z, |
| dot(%s.xy, sk_FragCoord.xy) + %s.z);)", |
| aaEdgeVarying[0].fsIn(), aaEdgeVarying[0].fsIn(), |
| aaEdgeVarying[1].fsIn(), aaEdgeVarying[1].fsIn(), |
| aaEdgeVarying[2].fsIn(), aaEdgeVarying[2].fsIn(), |
| aaEdgeVarying[3].fsIn(), aaEdgeVarying[3].fsIn()); |
| aaDistName = "aaDists"; |
| } |
| args.fFragBuilder->codeAppendf( |
| "float mindist = min(min(%s.x, %s.y), min(%s.z, %s.w));", |
| aaDistName, aaDistName, aaDistName, aaDistName); |
| if (mulByFragCoordW) { |
| args.fFragBuilder->codeAppend("mindist *= sk_FragCoord.w;"); |
| } |
| args.fFragBuilder->codeAppendf("%s = float4(clamp(mindist, 0, 1));", |
| args.fOutputCoverage); |
| } else { |
| args.fFragBuilder->codeAppendf("%s = float4(1);", args.fOutputCoverage); |
| } |
| } |
| GrGLSLColorSpaceXformHelper fColorSpaceXformHelper; |
| }; |
| return new GLSLProcessor; |
| } |
| |
| bool usesCoverageEdgeAA() const { return SkToBool(fAAEdges[0].isInitialized()); } |
| |
| private: |
| // This exists to reduce the number of shaders generated. It does some rounding of sampler |
| // counts. |
| static int NumSamplersToUse(int numRealProxies, const GrShaderCaps& caps) { |
| SkASSERT(numRealProxies > 0 && numRealProxies <= kMaxTextures && |
| numRealProxies <= caps.maxFragmentSamplers()); |
| if (1 == numRealProxies) { |
| return 1; |
| } |
| if (numRealProxies <= 4) { |
| return 4; |
| } |
| // Round to the next power of 2 and then clamp to kMaxTextures and the max allowed by caps. |
| return SkTMin(SkNextPow2(numRealProxies), SkTMin(kMaxTextures, caps.maxFragmentSamplers())); |
| } |
| |
| TextureGeometryProcessor(sk_sp<GrTextureProxy> proxies[], int proxyCnt, int samplerCnt, |
| sk_sp<GrColorSpaceXform> csxf, bool coverageAA, bool perspective, |
| Domain domain, const GrSamplerState::Filter filters[], |
| const GrShaderCaps& caps) |
| : INHERITED(kTextureGeometryProcessor_ClassID), fColorSpaceXform(std::move(csxf)) { |
| SkASSERT(proxyCnt > 0 && samplerCnt >= proxyCnt); |
| fSamplers[0].reset(std::move(proxies[0]), filters[0]); |
| this->addTextureSampler(&fSamplers[0]); |
| for (int i = 1; i < proxyCnt; ++i) { |
| // This class has one sampler built in, the rest come from memory this processor was |
| // placement-newed into and so haven't been constructed. |
| new (&fSamplers[i]) TextureSampler(std::move(proxies[i]), filters[i]); |
| this->addTextureSampler(&fSamplers[i]); |
| } |
| |
| if (perspective) { |
| fPositions = {"position", kFloat3_GrVertexAttribType}; |
| } else { |
| fPositions = {"position", kFloat2_GrVertexAttribType}; |
| } |
| fColors = {"color", kUByte4_norm_GrVertexAttribType}; |
| fTextureCoords = {"textureCoords", kFloat2_GrVertexAttribType}; |
| int vertexAttributeCnt = 3; |
| |
| if (samplerCnt > 1) { |
| // Here we initialize any extra samplers by repeating the last one samplerCnt - proxyCnt |
| // times. |
| GrTextureProxy* dupeProxy = fSamplers[proxyCnt - 1].proxy(); |
| for (int i = proxyCnt; i < samplerCnt; ++i) { |
| new (&fSamplers[i]) TextureSampler(sk_ref_sp(dupeProxy), filters[proxyCnt - 1]); |
| this->addTextureSampler(&fSamplers[i]); |
| } |
| SkASSERT(caps.integerSupport()); |
| fTextureIdx = {"textureIdx", kInt_GrVertexAttribType}; |
| ++vertexAttributeCnt; |
| } |
| if (domain == Domain::kYes) { |
| fDomain = {"domain", kFloat4_GrVertexAttribType}; |
| ++vertexAttributeCnt; |
| } |
| if (coverageAA) { |
| fAAEdges[0] = {"aaEdge0", kFloat3_GrVertexAttribType}; |
| fAAEdges[1] = {"aaEdge1", kFloat3_GrVertexAttribType}; |
| fAAEdges[2] = {"aaEdge2", kFloat3_GrVertexAttribType}; |
| fAAEdges[3] = {"aaEdge3", kFloat3_GrVertexAttribType}; |
| vertexAttributeCnt += 4; |
| } |
| this->setVertexAttributeCnt(vertexAttributeCnt); |
| } |
| |
| const Attribute& onVertexAttribute(int i) const override { |
| return IthInitializedAttribute(i, fPositions, fColors, fTextureCoords, fTextureIdx, fDomain, |
| fAAEdges[0], fAAEdges[1], fAAEdges[2], fAAEdges[3]); |
| } |
| |
| Attribute fPositions; |
| Attribute fColors; |
| Attribute fTextureCoords; |
| Attribute fTextureIdx; |
| Attribute fDomain; |
| Attribute fAAEdges[4]; |
| sk_sp<GrColorSpaceXform> fColorSpaceXform; |
| TextureSampler fSamplers[1]; |
| |
| typedef GrGeometryProcessor INHERITED; |
| }; |
| |
| // This computes the four edge equations for a quad, then outsets them and 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(Sk4f* x, Sk4f* y, Sk4f* a, Sk4f* b, Sk4f* c) { |
| 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); }; |
| |
| auto xnext = nextCCW(*x); |
| auto ynext = nextCCW(*y); |
| *a = ynext - *y; |
| *b = *x - xnext; |
| *c = fma(xnext, *y, -ynext * *x); |
| Sk4f invNormLengths = (*a * *a + *b * *b).rsqrt(); |
| // Make sure the edge equations have their normals facing into the quad in device space. |
| auto test = fma(*a, nextCW(*x), fma(*b, nextCW(*y), *c)); |
| if ((test < Sk4f(0)).anyTrue()) { |
| invNormLengths = -invNormLengths; |
| } |
| *a *= invNormLengths; |
| *b *= invNormLengths; |
| *c *= invNormLengths; |
| |
| // Here is the outset. This makes our edge equations compute coverage without requiring a |
| // half pixel offset and is also used to compute the bloated quad that will cover all |
| // pixels. |
| *c += Sk4f(0.5f); |
| |
| // Reverse the process to compute the points of the bloated quad from the edge equations. |
| // This time the inputs don't have 1s as their third coord and we want to homogenize rather |
| // than normalize. |
| auto anext = nextCW(*a); |
| auto bnext = nextCW(*b); |
| auto cnext = nextCW(*c); |
| *x = fma(bnext, *c, -*b * cnext); |
| *y = fma(*a, cnext, -anext * *c); |
| auto ic = (fma(anext, *b, -bnext * *a)).invert(); |
| *x *= ic; |
| *y *= ic; |
| } |
| |
| 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, |
| const SkRect& texRect) { |
| 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, |
| const SkRect& texRect) { |
| 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, |
| 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(&x, &y, &a, &b, &c); |
| |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = {x[i], y[i]}; |
| for (int j = 0; j < 4; ++j) { |
| vertices[i].fEdges[j] = {a[j], b[j], c[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, |
| const SkRect& texRect) { |
| auto x = quad.x4f(); |
| auto y = quad.y4f(); |
| auto iw = quad.iw4f(); |
| x *= iw; |
| y *= iw; |
| |
| // Get an equation for w from device space coords. |
| SkMatrix P; |
| P.setAll(x[0], y[0], 1, x[1], y[1], 1, x[2], y[2], 1); |
| SkAssertResult(P.invert(&P)); |
| SkPoint3 weq{quad.w(0), quad.w(1), quad.w(2)}; |
| P.mapHomogeneousPoints(&weq, &weq, 1); |
| |
| Sk4f a, b, c; |
| compute_quad_edges_and_outset_vertices(&x, &y, &a, &b, &c); |
| |
| // Compute new w values for the output vertices; |
| auto w = Sk4f(weq.fX) * x + Sk4f(weq.fY) * y + Sk4f(weq.fZ); |
| x *= w; |
| y *= w; |
| |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fPosition = {x[i], y[i], w[i]}; |
| for (int j = 0; j < 4; ++j) { |
| vertices[i].fEdges[j] = {a[j], b[j], c[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, MultiTexture MT = V::kMultiTexture> struct TexIdAssigner; |
| |
| template <typename V> struct TexIdAssigner<V, MultiTexture::kYes> { |
| static void Assign(V* vertices, int textureIdx) { |
| for (int i = 0; i < 4; ++i) { |
| vertices[i].fTextureIdx = textureIdx; |
| } |
| } |
| }; |
| |
| template <typename V> struct TexIdAssigner<V, MultiTexture::kNo> { |
| static void Assign(V* vertices, int textureIdx) {} |
| }; |
| |
| 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, const SkRect& srcRect, GrColor color, |
| GrSurfaceOrigin origin, GrSamplerState::Filter filter, V* vertices, |
| SkScalar iw, SkScalar ih, int textureIdx, 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, texRect); |
| vertices[0].fColor = color; |
| vertices[1].fColor = color; |
| vertices[2].fColor = color; |
| vertices[3].fColor = color; |
| TexIdAssigner<V>::Assign(vertices, textureIdx); |
| 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, |
| SkCanvas::SrcRectConstraint constraint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> csxf) { |
| GrOpMemoryPool* pool = context->contextPriv().opMemoryPool(); |
| |
| return pool->allocate<TextureOp>(std::move(proxy), filter, color, |
| srcRect, dstRect, aaType, constraint, |
| viewMatrix, std::move(csxf)); |
| } |
| |
| ~TextureOp() override { |
| if (fFinalized) { |
| auto proxies = this->proxies(); |
| for (int i = 0; i < fProxyCnt; ++i) { |
| proxies[i]->completedRead(); |
| } |
| if (fProxyCnt > 1) { |
| delete[] reinterpret_cast<const char*>(proxies); |
| } |
| } else { |
| SkASSERT(1 == fProxyCnt); |
| fProxy0->unref(); |
| } |
| } |
| |
| const char* name() const override { return "TextureOp"; } |
| |
| void visitProxies(const VisitProxyFunc& func) const override { |
| auto proxies = this->proxies(); |
| for (int i = 0; i < fProxyCnt; ++i) { |
| func(proxies[i]); |
| } |
| } |
| |
| SkString dumpInfo() const override { |
| SkString str; |
| str.appendf("# draws: %d\n", fDraws.count()); |
| auto proxies = this->proxies(); |
| for (int i = 0; i < fProxyCnt; ++i) { |
| str.appendf("Proxy ID %d: %d, Filter: %d\n", i, proxies[i]->uniqueID().asUInt(), |
| static_cast<int>(this->filters()[i])); |
| } |
| for (int i = 0; i < fDraws.count(); ++i) { |
| const Draw& draw = fDraws[i]; |
| str.appendf( |
| "%d: Color: 0x%08x, ProxyIdx: %d, TexRect [L: %.2f, T: %.2f, R: %.2f, B: %.2f] " |
| "Quad [(%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f)]\n", |
| i, draw.color(), draw.textureIdx(), draw.srcRect().fLeft, draw.srcRect().fTop, |
| draw.srcRect().fRight, draw.srcRect().fBottom, draw.quad().point(0).fX, |
| draw.quad().point(0).fY, draw.quad().point(1).fX, draw.quad().point(1).fY, |
| draw.quad().point(2).fX, draw.quad().point(2).fY, draw.quad().point(3).fX, |
| draw.quad().point(3).fY); |
| } |
| str += INHERITED::dumpInfo(); |
| return str; |
| } |
| |
| RequiresDstTexture finalize(const GrCaps& caps, const GrAppliedClip* clip, |
| GrPixelConfigIsClamped dstIsClamped) override { |
| SkASSERT(!fFinalized); |
| SkASSERT(1 == fProxyCnt); |
| fFinalized = true; |
| fProxy0->addPendingRead(); |
| fProxy0->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; |
| |
| // This is used in a heursitic for choosing a code path. We don't care what happens with |
| // really large rects, infs, nans, etc. |
| #if defined(__clang__) && (__clang_major__ * 1000 + __clang_minor__) >= 3007 |
| __attribute__((no_sanitize("float-cast-overflow"))) |
| #endif |
| size_t RectSizeAsSizeT(const SkRect& rect) {; |
| return static_cast<size_t>(SkTMax(rect.width(), 1.f) * SkTMax(rect.height(), 1.f)); |
| } |
| |
| static constexpr int kMaxTextures = TextureGeometryProcessor::kMaxTextures; |
| |
| TextureOp(sk_sp<GrTextureProxy> proxy, GrSamplerState::Filter filter, GrColor color, |
| const SkRect& srcRect, const SkRect& dstRect, GrAAType aaType, |
| SkCanvas::SrcRectConstraint constraint, const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> csxf) |
| : INHERITED(ClassID()) |
| , fColorSpaceXform(std::move(csxf)) |
| , fProxy0(proxy.release()) |
| , fFilter0(filter) |
| , fProxyCnt(1) |
| , fAAType(static_cast<unsigned>(aaType)) |
| , fFinalized(0) { |
| SkASSERT(aaType != GrAAType::kMixedSamples); |
| fPerspective = viewMatrix.hasPerspective(); |
| auto quad = GrPerspQuad(dstRect, viewMatrix); |
| auto bounds = quad.bounds(); |
| #ifndef SK_DONT_DROP_UNNECESSARY_AA_IN_TEXTURE_OP |
| if (GrAAType::kCoverage == this->aaType() && viewMatrix.rectStaysRect()) { |
| // Disable coverage AA when rect falls on integers in device space. |
| auto is_int = [](float f) { return f == sk_float_floor(f); }; |
| if (is_int(bounds.fLeft) && is_int(bounds.fTop) && is_int(bounds.fRight) && |
| is_int(bounds.fBottom)) { |
| fAAType = static_cast<unsigned>(GrAAType::kNone); |
| // We may have had a strict constraint with nearest filter soley due to possible AA |
| // bloat. In that case it's no longer necessary. |
| if (constraint == SkCanvas::kStrict_SrcRectConstraint && |
| filter == GrSamplerState::Filter::kNearest) { |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| } |
| } |
| #endif |
| const auto& draw = fDraws.emplace_back(srcRect, 0, quad, constraint, color); |
| this->setBounds(bounds, HasAABloat::kNo, IsZeroArea::kNo); |
| fDomain = static_cast<bool>(draw.domain()); |
| fMaxApproxDstPixelArea = RectSizeAsSizeT(bounds); |
| } |
| |
| template <typename Pos, MultiTexture MT, Domain D, GrAA AA> |
| void tess(void* v, const float iw[], const float ih[], const GrGeometryProcessor* gp) { |
| using Vertex = TextureGeometryProcessor::Vertex<Pos, MT, D, AA>; |
| SkASSERT(gp->debugOnly_vertexStride() == sizeof(Vertex)); |
| auto vertices = static_cast<Vertex*>(v); |
| auto proxies = this->proxies(); |
| auto filters = this->filters(); |
| for (const auto& draw : fDraws) { |
| auto textureIdx = draw.textureIdx(); |
| auto origin = proxies[textureIdx]->origin(); |
| tessellate_quad<Vertex>(draw.quad(), draw.srcRect(), draw.color(), origin, |
| filters[textureIdx], vertices, iw[textureIdx], ih[textureIdx], |
| textureIdx, draw.domain()); |
| vertices += 4; |
| } |
| } |
| |
| void onPrepareDraws(Target* target) override { |
| sk_sp<GrTextureProxy> proxiesSPs[kMaxTextures]; |
| auto proxies = this->proxies(); |
| auto filters = this->filters(); |
| for (int i = 0; i < fProxyCnt; ++i) { |
| if (!proxies[i]->instantiate(target->resourceProvider())) { |
| return; |
| } |
| proxiesSPs[i] = sk_ref_sp(proxies[i]); |
| } |
| |
| Domain domain = fDomain ? Domain::kYes : Domain::kNo; |
| bool coverageAA = GrAAType::kCoverage == this->aaType(); |
| sk_sp<GrGeometryProcessor> gp = TextureGeometryProcessor::Make( |
| proxiesSPs, fProxyCnt, std::move(fColorSpaceXform), coverageAA, fPerspective, |
| domain, filters, *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; |
| } |
| |
| const GrPipeline* pipeline = target->allocPipeline(args, GrProcessorSet::MakeEmptySet(), |
| target->detachAppliedClip()); |
| using TessFn = |
| decltype(&TextureOp::tess<SkPoint, MultiTexture::kNo, Domain::kNo, GrAA::kNo>); |
| #define TESS_FN_AND_VERTEX_SIZE(Point, MT, Domain, AA) \ |
| { \ |
| &TextureOp::tess<Point, MT, Domain, AA>, \ |
| sizeof(TextureGeometryProcessor::Vertex<Point, MT, Domain, AA>) \ |
| } |
| static constexpr struct { |
| TessFn fTessFn; |
| size_t fVertexSize; |
| } kTessFnsAndVertexSizes[] = { |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kNo, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kNo, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kNo, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kNo, Domain::kYes, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kYes, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kYes, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kYes, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint, MultiTexture::kYes, Domain::kYes, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kNo, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kNo, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kNo, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kNo, Domain::kYes, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kYes, Domain::kNo, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kYes, Domain::kNo, GrAA::kYes), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kYes, Domain::kYes, GrAA::kNo), |
| TESS_FN_AND_VERTEX_SIZE(SkPoint3, MultiTexture::kYes, Domain::kYes, GrAA::kYes), |
| }; |
| #undef TESS_FN_AND_VERTEX_SIZE |
| int tessFnIdx = 0; |
| tessFnIdx |= coverageAA ? 0x1 : 0x0; |
| tessFnIdx |= fDomain ? 0x2 : 0x0; |
| tessFnIdx |= (fProxyCnt > 1) ? 0x4 : 0x0; |
| tessFnIdx |= fPerspective ? 0x8 : 0x0; |
| |
| SkASSERT(kTessFnsAndVertexSizes[tessFnIdx].fVertexSize == gp->debugOnly_vertexStride()); |
| |
| int vstart; |
| const GrBuffer* vbuffer; |
| void* vdata = target->makeVertexSpace(kTessFnsAndVertexSizes[tessFnIdx].fVertexSize, |
| 4 * fDraws.count(), &vbuffer, &vstart); |
| if (!vdata) { |
| SkDebugf("Could not allocate vertices\n"); |
| return; |
| } |
| |
| float iw[kMaxTextures]; |
| float ih[kMaxTextures]; |
| for (int t = 0; t < fProxyCnt; ++t) { |
| const auto* texture = proxies[t]->priv().peekTexture(); |
| iw[t] = 1.f / texture->width(); |
| ih[t] = 1.f / texture->height(); |
| } |
| |
| (this->*(kTessFnsAndVertexSizes[tessFnIdx].fTessFn))(vdata, iw, ih, gp.get()); |
| |
| GrPrimitiveType primitiveType = |
| fDraws.count() > 1 ? GrPrimitiveType::kTriangles : GrPrimitiveType::kTriangleStrip; |
| GrMesh mesh(primitiveType); |
| if (fDraws.count() > 1) { |
| sk_sp<const GrBuffer> ibuffer = target->resourceProvider()->refQuadIndexBuffer(); |
| if (!ibuffer) { |
| SkDebugf("Could not allocate quad indices\n"); |
| return; |
| } |
| mesh.setIndexedPatterned(ibuffer.get(), 6, 4, fDraws.count(), |
| GrResourceProvider::QuadCountOfQuadBuffer()); |
| } else { |
| mesh.setNonIndexedNonInstanced(4); |
| } |
| mesh.setVertexData(vbuffer, vstart); |
| target->draw(gp.get(), pipeline, mesh); |
| } |
| |
| bool onCombineIfPossible(GrOp* t, const GrCaps& caps) override { |
| const auto* that = t->cast<TextureOp>(); |
| const auto& shaderCaps = *caps.shaderCaps(); |
| if (!GrColorSpaceXform::Equals(fColorSpaceXform.get(), that->fColorSpaceXform.get())) { |
| return false; |
| } |
| if (this->aaType() != that->aaType()) { |
| return false; |
| } |
| // Because of an issue where GrColorSpaceXform adds the same function every time it is used |
| // in a texture lookup, we only allow multiple textures when there is no transform. |
| if (TextureGeometryProcessor::SupportsMultitexture(shaderCaps) && !fColorSpaceXform && |
| fMaxApproxDstPixelArea <= shaderCaps.disableImageMultitexturingDstRectAreaThreshold() && |
| that->fMaxApproxDstPixelArea <= |
| shaderCaps.disableImageMultitexturingDstRectAreaThreshold()) { |
| int map[kMaxTextures]; |
| int numNewProxies = this->mergeProxies(that, map, shaderCaps); |
| if (numNewProxies < 0) { |
| return false; |
| } |
| if (1 == fProxyCnt && numNewProxies) { |
| void* mem = new char[(sizeof(GrSamplerState::Filter) + sizeof(GrTextureProxy*)) * |
| kMaxTextures]; |
| auto proxies = reinterpret_cast<GrTextureProxy**>(mem); |
| auto filters = reinterpret_cast<GrSamplerState::Filter*>(proxies + kMaxTextures); |
| proxies[0] = fProxy0; |
| filters[0] = fFilter0; |
| fProxyArray = proxies; |
| } |
| fProxyCnt += numNewProxies; |
| auto thisProxies = fProxyArray; |
| auto thatProxies = that->proxies(); |
| auto thatFilters = that->filters(); |
| auto thisFilters = reinterpret_cast<GrSamplerState::Filter*>(thisProxies + |
| kMaxTextures); |
| for (int i = 0; i < that->fProxyCnt; ++i) { |
| if (map[i] < 0) { |
| thatProxies[i]->addPendingRead(); |
| |
| thisProxies[-map[i]] = thatProxies[i]; |
| thisFilters[-map[i]] = thatFilters[i]; |
| map[i] = -map[i]; |
| } |
| } |
| int firstNewDraw = fDraws.count(); |
| fDraws.push_back_n(that->fDraws.count(), that->fDraws.begin()); |
| for (int i = firstNewDraw; i < fDraws.count(); ++i) { |
| fDraws[i].setTextureIdx(map[fDraws[i].textureIdx()]); |
| } |
| } else { |
| // We can get here when one of the ops is already multitextured but the other cannot |
| // be because of the dst rect size. |
| if (fProxyCnt > 1 || that->fProxyCnt > 1) { |
| return false; |
| } |
| if (fProxy0->uniqueID() != that->fProxy0->uniqueID() || fFilter0 != that->fFilter0) { |
| return false; |
| } |
| fDraws.push_back_n(that->fDraws.count(), that->fDraws.begin()); |
| } |
| this->joinBounds(*that); |
| fMaxApproxDstPixelArea = SkTMax(that->fMaxApproxDstPixelArea, fMaxApproxDstPixelArea); |
| fPerspective |= that->fPerspective; |
| fDomain |= that->fDomain; |
| return true; |
| } |
| |
| /** |
| * Determines a mapping of indices from that's proxy array to this's proxy array. A negative map |
| * value means that's proxy should be added to this's proxy array at the absolute value of |
| * the map entry. If it is determined that the ops shouldn't combine their proxies then a |
| * negative value is returned. Otherwise, return value indicates the number of proxies that have |
| * to be added to this op or, equivalently, the number of negative entries in map. |
| */ |
| int mergeProxies(const TextureOp* that, int map[kMaxTextures], const GrShaderCaps& caps) const { |
| std::fill_n(map, kMaxTextures, -kMaxTextures); |
| int sharedProxyCnt = 0; |
| auto thisProxies = this->proxies(); |
| auto thisFilters = this->filters(); |
| auto thatProxies = that->proxies(); |
| auto thatFilters = that->filters(); |
| for (int i = 0; i < fProxyCnt; ++i) { |
| for (int j = 0; j < that->fProxyCnt; ++j) { |
| if (thisProxies[i]->uniqueID() == thatProxies[j]->uniqueID()) { |
| if (thisFilters[i] != thatFilters[j]) { |
| // In GL we don't currently support using the same texture with different |
| // samplers. If we added support for sampler objects and a cap bit to know |
| // it's ok to use different filter modes then we could support this. |
| // Otherwise, we could also only allow a single filter mode for each op |
| // instance. |
| return -1; |
| } |
| map[j] = i; |
| ++sharedProxyCnt; |
| break; |
| } |
| } |
| } |
| int actualMaxTextures = SkTMin(caps.maxFragmentSamplers(), kMaxTextures); |
| int newProxyCnt = that->fProxyCnt - sharedProxyCnt; |
| if (newProxyCnt + fProxyCnt > actualMaxTextures) { |
| return -1; |
| } |
| GrPixelConfig config = thisProxies[0]->config(); |
| int nextSlot = fProxyCnt; |
| for (int j = 0; j < that->fProxyCnt; ++j) { |
| // We want to avoid making many shaders because of different permutations of shader |
| // based swizzle and sampler types. The approach taken here is to require the configs to |
| // be the same and to only allow already instantiated proxies that have the most |
| // common sampler type. Otherwise we don't merge. |
| if (thatProxies[j]->config() != config) { |
| return -1; |
| } |
| if (GrTexture* tex = thatProxies[j]->priv().peekTexture()) { |
| if (tex->texturePriv().samplerType() != kTexture2DSampler_GrSLType) { |
| return -1; |
| } |
| } |
| if (map[j] < 0) { |
| map[j] = -(nextSlot++); |
| } |
| } |
| return newProxyCnt; |
| } |
| |
| GrAAType aaType() const { return static_cast<GrAAType>(fAAType); } |
| |
| GrTextureProxy* const* proxies() const { return fProxyCnt > 1 ? fProxyArray : &fProxy0; } |
| |
| const GrSamplerState::Filter* filters() const { |
| if (fProxyCnt > 1) { |
| return reinterpret_cast<const GrSamplerState::Filter*>(fProxyArray + kMaxTextures); |
| } |
| return &fFilter0; |
| } |
| |
| class Draw { |
| public: |
| Draw(const SkRect& srcRect, int textureIdx, const GrPerspQuad& quad, |
| SkCanvas::SrcRectConstraint constraint, GrColor color) |
| : fSrcRect(srcRect) |
| , fHasDomain(constraint == SkCanvas::kStrict_SrcRectConstraint) |
| , fTextureIdx(SkToUInt(textureIdx)) |
| , fQuad(quad) |
| , fColor(color) {} |
| const GrPerspQuad& quad() const { return fQuad; } |
| int textureIdx() const { return SkToInt(fTextureIdx); } |
| const SkRect& srcRect() const { return fSrcRect; } |
| GrColor color() const { return fColor; } |
| Domain domain() const { return Domain(fHasDomain); } |
| void setTextureIdx(int i) { fTextureIdx = SkToUInt(i); } |
| |
| private: |
| SkRect fSrcRect; |
| unsigned fHasDomain : 1; |
| unsigned fTextureIdx : 31; |
| GrPerspQuad fQuad; |
| GrColor fColor; |
| }; |
| SkSTArray<1, Draw, true> fDraws; |
| sk_sp<GrColorSpaceXform> fColorSpaceXform; |
| // Initially we store a single proxy ptr and a single filter. If we grow to have more than |
| // one proxy we instead store pointers to dynamically allocated arrays of size kMaxTextures |
| // followed by kMaxTextures filters. |
| union { |
| GrTextureProxy* fProxy0; |
| GrTextureProxy** fProxyArray; |
| }; |
| size_t fMaxApproxDstPixelArea; |
| GrSamplerState::Filter fFilter0; |
| uint8_t fProxyCnt; |
| 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; |
| |
| typedef GrMeshDrawOp INHERITED; |
| }; |
| |
| constexpr int TextureGeometryProcessor::kMaxTextures; |
| constexpr int TextureOp::kMaxTextures; |
| |
| } // 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, |
| SkCanvas::SrcRectConstraint constraint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> csxf) { |
| return TextureOp::Make(context, std::move(proxy), filter, color, srcRect, dstRect, aaType, |
| constraint, viewMatrix, std::move(csxf)); |
| } |
| |
| } // 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 csxf = GrTest::TestColorXform(random); |
| GrAAType aaType = GrAAType::kNone; |
| if (random->nextBool()) { |
| aaType = (fsaaType == GrFSAAType::kUnifiedMSAA) ? GrAAType::kMSAA : GrAAType::kCoverage; |
| } |
| auto constraint = random->nextBool() ? SkCanvas::kStrict_SrcRectConstraint |
| : SkCanvas::kFast_SrcRectConstraint; |
| return GrTextureOp::Make(context, std::move(proxy), filter, color, srcRect, rect, aaType, |
| constraint, viewMatrix, std::move(csxf)); |
| } |
| |
| #endif |
