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authorGravatar ksakamoto <ksakamoto@chromium.org>2016-07-05 03:54:53 -0700
committerGravatar Commit bot <commit-bot@chromium.org>2016-07-05 03:54:53 -0700
commitec7f2ac7285ad9b1ea84e7aa68a741ae2a07a777 (patch)
tree3283a77bba8ec1446d0f773c9033835f689fd5d4 /src/gpu/instanced
parent42e6798696ac3a93a2b7ba7a9d6a84b77eba0116 (diff)
Revert of Begin instanced rendering for simple shapes (patchset #20 id:380001 of https://codereview.chromium.org/2066993003/ )
Reason for revert: This caused static initializer regressions in Chromium (crbug.com/625728). Relevant build logs here: Linux: https://build.chromium.org/p/chromium/builders/Linux%20x64/builds/21849 Mac: https://build.chromium.org/p/chromium/builders/Mac/builds/17350 Relevant lines from the error log: Linux: # InstanceProcessor.cpp GrUniqueKey::GenerateDomain() # InstanceProcessor.cpp gr_instanced::kShapeBufferDomain FAILED linux-release-64/sizes/nacl_helper-si/initializers: actual 8, expected 7, better lower FAILED linux-release-64/sizes/chrome-si/initializers: actual 8, expected 7, better lower Mac: FAILED mac-release/sizes/chrome-si/initializers: actual 2, expected 0, better lower Original issue's description: > Begin instanced rendering for simple shapes > > Adds a module that performs instanced rendering and starts using it > for a select subset of draws on Mac GL platforms. The instance > processor can currently handle rects, ovals, round rects, and double > round rects. It can generalize shapes as round rects in order to > improve batching. The instance processor also employs new drawing > algorithms, irrespective of instanced rendering, that improve GPU-side > performance (e.g. sample mask, different triangle layouts, etc.). > > This change only scratches the surface of instanced rendering. The > majority of draws still only have one instance. Future work may > include: > > * Passing coord transforms through the texel buffer. > * Sending FP uniforms through instanced vertex attribs. > * Using instanced rendering for more draws (stencil writes, > drawAtlas, etc.). > * Adding more shapes to the instance processor’s repertoire. > * Batching draws that have mismatched scissors (analyzing draw > bounds, inserting clip planes, etc.). > * Bindless textures. > * Uber shaders. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2066993003 > > Committed: https://skia.googlesource.com/skia/+/42eafa4bc00354b132ad114d22ed6b95d8849891 NOTREECHECKS=true TBR=bsalomon@google.com,egdaniel@google.com,robertphillips@google.com,csmartdalton@google.com # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=skia: Review-Url: https://codereview.chromium.org/2123693002
Diffstat (limited to 'src/gpu/instanced')
-rw-r--r--src/gpu/instanced/GLInstancedRendering.cpp301
-rw-r--r--src/gpu/instanced/GLInstancedRendering.h60
-rw-r--r--src/gpu/instanced/InstanceProcessor.cpp2102
-rw-r--r--src/gpu/instanced/InstanceProcessor.h63
-rw-r--r--src/gpu/instanced/InstancedRendering.cpp474
-rw-r--r--src/gpu/instanced/InstancedRendering.h186
-rw-r--r--src/gpu/instanced/InstancedRenderingTypes.h191
7 files changed, 0 insertions, 3377 deletions
diff --git a/src/gpu/instanced/GLInstancedRendering.cpp b/src/gpu/instanced/GLInstancedRendering.cpp
deleted file mode 100644
index 7df39f07df..0000000000
--- a/src/gpu/instanced/GLInstancedRendering.cpp
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GLInstancedRendering.h"
-
-#include "GrResourceProvider.h"
-#include "gl/GrGLGpu.h"
-#include "instanced/InstanceProcessor.h"
-
-#define GL_CALL(X) GR_GL_CALL(this->glGpu()->glInterface(), X)
-
-namespace gr_instanced {
-
-class GLInstancedRendering::GLBatch : public InstancedRendering::Batch {
-public:
- DEFINE_BATCH_CLASS_ID
-
- GLBatch(GLInstancedRendering* instRendering) : INHERITED(ClassID(), instRendering) {}
- int numGLCommands() const { return 1 + fNumChangesInGeometry; }
-
-private:
- int fEmulatedBaseInstance;
- int fGLDrawCmdsIdx;
-
- friend class GLInstancedRendering;
-
- typedef Batch INHERITED;
-};
-
-GLInstancedRendering* GLInstancedRendering::CreateIfSupported(GrGLGpu* gpu) {
-#ifndef SK_BUILD_FOR_MAC
- // Only whitelisting on Mac for now. Once we've been able to work through the various issues on
- // other platforms we can enable more generally.
- return nullptr;
-#endif
- const GrGLCaps& glCaps = gpu->glCaps();
- AntialiasMode lastSupportedAAMode;
- if (!glCaps.vertexArrayObjectSupport() ||
- !glCaps.drawIndirectSupport() ||
- !InstanceProcessor::IsSupported(*glCaps.glslCaps(), glCaps, &lastSupportedAAMode)) {
- return nullptr;
- }
- return new GLInstancedRendering(gpu, lastSupportedAAMode);
-}
-
-GLInstancedRendering::GLInstancedRendering(GrGLGpu* gpu, AntialiasMode lastSupportedAAMode)
- : INHERITED(gpu, lastSupportedAAMode, gpu->glCaps().canDrawIndirectToFloat()),
- fVertexArrayID(0),
- fGLDrawCmdsInfo(0),
- fInstanceAttribsBufferUniqueId(SK_InvalidUniqueID) {
-}
-
-GLInstancedRendering::~GLInstancedRendering() {
- if (fVertexArrayID) {
- GL_CALL(DeleteVertexArrays(1, &fVertexArrayID));
- this->glGpu()->notifyVertexArrayDelete(fVertexArrayID);
- }
-}
-
-inline GrGLGpu* GLInstancedRendering::glGpu() const {
- return static_cast<GrGLGpu*>(this->gpu());
-}
-
-InstancedRendering::Batch* GLInstancedRendering::createBatch() {
- return new GLBatch(this);
-}
-
-void GLInstancedRendering::onBeginFlush(GrResourceProvider* rp) {
- // Count what there is to draw.
- BatchList::Iter iter;
- iter.init(this->trackedBatches(), BatchList::Iter::kHead_IterStart);
- int numGLInstances = 0;
- int numGLDrawCmds = 0;
- while (Batch* b = iter.get()) {
- GLBatch* batch = static_cast<GLBatch*>(b);
- iter.next();
-
- numGLInstances += batch->fNumDraws;
- numGLDrawCmds += batch->numGLCommands();
- }
- if (!numGLDrawCmds) {
- return;
- }
- SkASSERT(numGLInstances);
-
- // Lazily create a vertex array object.
- if (!fVertexArrayID) {
- GL_CALL(GenVertexArrays(1, &fVertexArrayID));
- if (!fVertexArrayID) {
- return;
- }
- this->glGpu()->bindVertexArray(fVertexArrayID);
-
- // Attach our index buffer to the vertex array.
- GL_CALL(BindBuffer(GR_GL_ELEMENT_ARRAY_BUFFER,
- static_cast<const GrGLBuffer*>(this->indexBuffer())->bufferID()));
-
- // Set up the non-instanced attribs.
- this->glGpu()->bindBuffer(kVertex_GrBufferType,
- static_cast<const GrGLBuffer*>(this->vertexBuffer()));
- GL_CALL(EnableVertexAttribArray((int)Attrib::kShapeCoords));
- GL_CALL(VertexAttribPointer((int)Attrib::kShapeCoords, 2, GR_GL_FLOAT, GR_GL_FALSE,
- sizeof(ShapeVertex), (void*) offsetof(ShapeVertex, fX)));
- GL_CALL(EnableVertexAttribArray((int)Attrib::kVertexAttrs));
- GL_CALL(VertexAttribIPointer((int)Attrib::kVertexAttrs, 1, GR_GL_INT, sizeof(ShapeVertex),
- (void*) offsetof(ShapeVertex, fAttrs)));
-
- SkASSERT(SK_InvalidUniqueID == fInstanceAttribsBufferUniqueId);
- }
-
- // Create and map instance and draw-indirect buffers.
- SkASSERT(!fInstanceBuffer);
- fInstanceBuffer.reset(static_cast<GrGLBuffer*>(
- rp->createBuffer(sizeof(Instance) * numGLInstances, kVertex_GrBufferType,
- kDynamic_GrAccessPattern, GrResourceProvider::kNoPendingIO_Flag)));
- if (!fInstanceBuffer) {
- return;
- }
-
- SkASSERT(!fDrawIndirectBuffer);
- fDrawIndirectBuffer.reset(static_cast<GrGLBuffer*>(
- rp->createBuffer(sizeof(GrGLDrawElementsIndirectCommand) * numGLDrawCmds,
- kDrawIndirect_GrBufferType, kDynamic_GrAccessPattern,
- GrResourceProvider::kNoPendingIO_Flag)));
- if (!fDrawIndirectBuffer) {
- return;
- }
-
- Instance* glMappedInstances = static_cast<Instance*>(fInstanceBuffer->map());
- int glInstancesIdx = 0;
-
- auto* glMappedCmds = static_cast<GrGLDrawElementsIndirectCommand*>(fDrawIndirectBuffer->map());
- int glDrawCmdsIdx = 0;
-
- bool baseInstanceSupport = this->glGpu()->glCaps().baseInstanceSupport();
-
- if (GR_GL_LOG_INSTANCED_BATCHES || !baseInstanceSupport) {
- fGLDrawCmdsInfo.reset(numGLDrawCmds);
- }
-
- // Generate the instance and draw-indirect buffer contents based on the tracked batches.
- iter.init(this->trackedBatches(), BatchList::Iter::kHead_IterStart);
- while (Batch* b = iter.get()) {
- GLBatch* batch = static_cast<GLBatch*>(b);
- iter.next();
-
- batch->fEmulatedBaseInstance = baseInstanceSupport ? 0 : glInstancesIdx;
- batch->fGLDrawCmdsIdx = glDrawCmdsIdx;
-
- const Batch::Draw* draw = batch->fHeadDraw;
- SkASSERT(draw);
- do {
- int instanceCount = 0;
- IndexRange geometry = draw->fGeometry;
- SkASSERT(!geometry.isEmpty());
-
- do {
- glMappedInstances[glInstancesIdx + instanceCount++] = draw->fInstance;
- draw = draw->fNext;
- } while (draw && draw->fGeometry == geometry);
-
- GrGLDrawElementsIndirectCommand& glCmd = glMappedCmds[glDrawCmdsIdx];
- glCmd.fCount = geometry.fCount;
- glCmd.fInstanceCount = instanceCount;
- glCmd.fFirstIndex = geometry.fStart;
- glCmd.fBaseVertex = 0;
- glCmd.fBaseInstance = baseInstanceSupport ? glInstancesIdx : 0;
-
- if (GR_GL_LOG_INSTANCED_BATCHES || !baseInstanceSupport) {
- fGLDrawCmdsInfo[glDrawCmdsIdx].fInstanceCount = instanceCount;
-#if GR_GL_LOG_INSTANCED_BATCHES
- fGLDrawCmdsInfo[glDrawCmdsIdx].fGeometry = geometry;
-#endif
- }
-
- glInstancesIdx += instanceCount;
- ++glDrawCmdsIdx;
- } while (draw);
- }
-
- SkASSERT(glDrawCmdsIdx == numGLDrawCmds);
- fDrawIndirectBuffer->unmap();
-
- SkASSERT(glInstancesIdx == numGLInstances);
- fInstanceBuffer->unmap();
-}
-
-void GLInstancedRendering::onDraw(const GrPipeline& pipeline, const InstanceProcessor& instProc,
- const Batch* baseBatch) {
- if (!fDrawIndirectBuffer) {
- return; // beginFlush was not successful.
- }
- if (!this->glGpu()->flushGLState(pipeline, instProc)) {
- return;
- }
-
- this->glGpu()->bindBuffer(kDrawIndirect_GrBufferType, fDrawIndirectBuffer.get());
-
- const GrGLCaps& glCaps = this->glGpu()->glCaps();
- const GLBatch* batch = static_cast<const GLBatch*>(baseBatch);
- int numCommands = batch->numGLCommands();
-
-#if GR_GL_LOG_INSTANCED_BATCHES
- SkASSERT(fGLDrawCmdsInfo);
- SkDebugf("Instanced batch: [");
- for (int i = 0; i < numCommands; ++i) {
- int glCmdIdx = batch->fGLDrawCmdsIdx + i;
- SkDebugf("%s%i * %s", (i ? ", " : ""), fGLDrawCmdsInfo[glCmdIdx].fInstanceCount,
- InstanceProcessor::GetNameOfIndexRange(fGLDrawCmdsInfo[glCmdIdx].fGeometry));
- }
- SkDebugf("]\n");
-#else
- SkASSERT(SkToBool(fGLDrawCmdsInfo) == !glCaps.baseInstanceSupport());
-#endif
-
- if (1 == numCommands || !glCaps.baseInstanceSupport() || !glCaps.multiDrawIndirectSupport()) {
- int emulatedBaseInstance = batch->fEmulatedBaseInstance;
- for (int i = 0; i < numCommands; ++i) {
- int glCmdIdx = batch->fGLDrawCmdsIdx + i;
- this->flushInstanceAttribs(emulatedBaseInstance);
- GL_CALL(DrawElementsIndirect(GR_GL_TRIANGLES, GR_GL_UNSIGNED_BYTE,
- (GrGLDrawElementsIndirectCommand*) nullptr + glCmdIdx));
- if (!glCaps.baseInstanceSupport()) {
- emulatedBaseInstance += fGLDrawCmdsInfo[glCmdIdx].fInstanceCount;
- }
- }
- } else {
- int glCmdsIdx = batch->fGLDrawCmdsIdx;
- this->flushInstanceAttribs(batch->fEmulatedBaseInstance);
- GL_CALL(MultiDrawElementsIndirect(GR_GL_TRIANGLES, GR_GL_UNSIGNED_BYTE,
- (GrGLDrawElementsIndirectCommand*) nullptr + glCmdsIdx,
- numCommands, 0));
- }
-}
-
-void GLInstancedRendering::flushInstanceAttribs(int baseInstance) {
- SkASSERT(fVertexArrayID);
- this->glGpu()->bindVertexArray(fVertexArrayID);
-
- SkASSERT(fInstanceBuffer);
- if (fInstanceAttribsBufferUniqueId != fInstanceBuffer->getUniqueID() ||
- fInstanceAttribsBaseInstance != baseInstance) {
- Instance* offsetInBuffer = (Instance*) nullptr + baseInstance;
-
- this->glGpu()->bindBuffer(kVertex_GrBufferType, fInstanceBuffer.get());
-
- // Info attrib.
- GL_CALL(EnableVertexAttribArray((int)Attrib::kInstanceInfo));
- GL_CALL(VertexAttribIPointer((int)Attrib::kInstanceInfo, 1, GR_GL_UNSIGNED_INT,
- sizeof(Instance), &offsetInBuffer->fInfo));
- GL_CALL(VertexAttribDivisor((int)Attrib::kInstanceInfo, 1));
-
- // Shape matrix attrib.
- GL_CALL(EnableVertexAttribArray((int)Attrib::kShapeMatrixX));
- GL_CALL(EnableVertexAttribArray((int)Attrib::kShapeMatrixY));
- GL_CALL(VertexAttribPointer((int)Attrib::kShapeMatrixX, 3, GR_GL_FLOAT, GR_GL_FALSE,
- sizeof(Instance), &offsetInBuffer->fShapeMatrix2x3[0]));
- GL_CALL(VertexAttribPointer((int)Attrib::kShapeMatrixY, 3, GR_GL_FLOAT, GR_GL_FALSE,
- sizeof(Instance), &offsetInBuffer->fShapeMatrix2x3[3]));
- GL_CALL(VertexAttribDivisor((int)Attrib::kShapeMatrixX, 1));
- GL_CALL(VertexAttribDivisor((int)Attrib::kShapeMatrixY, 1));
-
- // Color attrib.
- GL_CALL(EnableVertexAttribArray((int)Attrib::kColor));
- GL_CALL(VertexAttribPointer((int)Attrib::kColor, 4, GR_GL_UNSIGNED_BYTE, GR_GL_TRUE,
- sizeof(Instance), &offsetInBuffer->fColor));
- GL_CALL(VertexAttribDivisor((int)Attrib::kColor, 1));
-
- // Local rect attrib.
- GL_CALL(EnableVertexAttribArray((int)Attrib::kLocalRect));
- GL_CALL(VertexAttribPointer((int)Attrib::kLocalRect, 4, GR_GL_FLOAT, GR_GL_FALSE,
- sizeof(Instance), &offsetInBuffer->fLocalRect));
- GL_CALL(VertexAttribDivisor((int)Attrib::kLocalRect, 1));
-
- fInstanceAttribsBufferUniqueId = fInstanceBuffer->getUniqueID();
- fInstanceAttribsBaseInstance = baseInstance;
- }
-}
-
-void GLInstancedRendering::onEndFlush() {
- fInstanceBuffer.reset();
- fDrawIndirectBuffer.reset();
- fGLDrawCmdsInfo.reset(0);
-}
-
-void GLInstancedRendering::onResetGpuResources(ResetType resetType) {
- if (fVertexArrayID && ResetType::kDestroy == resetType) {
- GL_CALL(DeleteVertexArrays(1, &fVertexArrayID));
- this->glGpu()->notifyVertexArrayDelete(fVertexArrayID);
- }
- fVertexArrayID = 0;
- fInstanceBuffer.reset();
- fDrawIndirectBuffer.reset();
- fInstanceAttribsBufferUniqueId = SK_InvalidUniqueID;
-}
-
-}
diff --git a/src/gpu/instanced/GLInstancedRendering.h b/src/gpu/instanced/GLInstancedRendering.h
deleted file mode 100644
index 569e6e3160..0000000000
--- a/src/gpu/instanced/GLInstancedRendering.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef gr_instanced_GLInstancedRendering_DEFINED
-#define gr_instanced_GLInstancedRendering_DEFINED
-
-#include "gl/GrGLBuffer.h"
-#include "instanced/InstancedRendering.h"
-
-class GrGLGpu;
-
-#define GR_GL_LOG_INSTANCED_BATCHES 0
-
-namespace gr_instanced {
-
-class GLInstancedRendering final : public InstancedRendering {
-public:
- static GLInstancedRendering* CreateIfSupported(GrGLGpu*);
- ~GLInstancedRendering() override;
-
-private:
- GLInstancedRendering(GrGLGpu*, AntialiasMode lastSupportedAAMode);
-
- GrGLGpu* glGpu() const;
-
- Batch* createBatch() override;
-
- void onBeginFlush(GrResourceProvider*) override;
- void onDraw(const GrPipeline&, const InstanceProcessor&, const Batch*) override;
- void onEndFlush() override;
- void onResetGpuResources(ResetType) override;
-
- void flushInstanceAttribs(int baseInstance);
-
- struct GLDrawCmdInfo {
- int fInstanceCount;
-#if GR_GL_LOG_INSTANCED_BATCHES
- IndexRange fGeometry;
-#endif
- };
-
- GrGLuint fVertexArrayID;
- SkAutoTUnref<GrGLBuffer> fInstanceBuffer;
- SkAutoTUnref<GrGLBuffer> fDrawIndirectBuffer;
- SkAutoSTMalloc<1024, GLDrawCmdInfo> fGLDrawCmdsInfo;
- uint32_t fInstanceAttribsBufferUniqueId;
- int fInstanceAttribsBaseInstance;
-
- class GLBatch;
-
- typedef InstancedRendering INHERITED;
-};
-
-}
-
-#endif
diff --git a/src/gpu/instanced/InstanceProcessor.cpp b/src/gpu/instanced/InstanceProcessor.cpp
deleted file mode 100644
index 80437a110a..0000000000
--- a/src/gpu/instanced/InstanceProcessor.cpp
+++ /dev/null
@@ -1,2102 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "InstanceProcessor.h"
-
-#include "GrContext.h"
-#include "GrRenderTargetPriv.h"
-#include "GrResourceCache.h"
-#include "GrResourceProvider.h"
-#include "glsl/GrGLSLGeometryProcessor.h"
-#include "glsl/GrGLSLFragmentShaderBuilder.h"
-#include "glsl/GrGLSLProgramBuilder.h"
-#include "glsl/GrGLSLVarying.h"
-
-namespace gr_instanced {
-
-bool InstanceProcessor::IsSupported(const GrGLSLCaps& glslCaps, const GrCaps& caps,
- AntialiasMode* lastSupportedAAMode) {
- if (!glslCaps.canUseAnyFunctionInShader() ||
- !glslCaps.flatInterpolationSupport() ||
- !glslCaps.integerSupport() ||
- 0 == glslCaps.maxVertexSamplers() ||
- !caps.shaderCaps()->texelBufferSupport() ||
- caps.maxVertexAttributes() < kNumAttribs) {
- return false;
- }
- if (caps.sampleLocationsSupport() &&
- glslCaps.sampleVariablesSupport() &&
- glslCaps.shaderDerivativeSupport()) {
- if (0 != caps.maxRasterSamples() &&
- glslCaps.sampleMaskOverrideCoverageSupport()) {
- *lastSupportedAAMode = AntialiasMode::kMixedSamples;
- } else {
- *lastSupportedAAMode = AntialiasMode::kMSAA;
- }
- } else {
- *lastSupportedAAMode = AntialiasMode::kCoverage;
- }
- return true;
-}
-
-InstanceProcessor::InstanceProcessor(BatchInfo batchInfo, GrBuffer* paramsBuffer)
- : fBatchInfo(batchInfo) {
- this->initClassID<InstanceProcessor>();
-
- this->addVertexAttrib(Attribute("shapeCoords", kVec2f_GrVertexAttribType, kHigh_GrSLPrecision));
- this->addVertexAttrib(Attribute("vertexAttrs", kInt_GrVertexAttribType));
- this->addVertexAttrib(Attribute("instanceInfo", kUint_GrVertexAttribType));
- this->addVertexAttrib(Attribute("shapeMatrixX", kVec3f_GrVertexAttribType,
- kHigh_GrSLPrecision));
- this->addVertexAttrib(Attribute("shapeMatrixY", kVec3f_GrVertexAttribType,
- kHigh_GrSLPrecision));
- this->addVertexAttrib(Attribute("color", kVec4f_GrVertexAttribType, kLow_GrSLPrecision));
- this->addVertexAttrib(Attribute("localRect", kVec4f_GrVertexAttribType, kHigh_GrSLPrecision));
-
- GR_STATIC_ASSERT(0 == (int)Attrib::kShapeCoords);
- GR_STATIC_ASSERT(1 == (int)Attrib::kVertexAttrs);
- GR_STATIC_ASSERT(2 == (int)Attrib::kInstanceInfo);
- GR_STATIC_ASSERT(3 == (int)Attrib::kShapeMatrixX);
- GR_STATIC_ASSERT(4 == (int)Attrib::kShapeMatrixY);
- GR_STATIC_ASSERT(5 == (int)Attrib::kColor);
- GR_STATIC_ASSERT(6 == (int)Attrib::kLocalRect);
- GR_STATIC_ASSERT(7 == kNumAttribs);
-
- if (fBatchInfo.fHasParams) {
- SkASSERT(paramsBuffer);
- fParamsAccess.reset(kRGBA_float_GrPixelConfig, paramsBuffer, kVertex_GrShaderFlag);
- this->addBufferAccess(&fParamsAccess);
- }
-
- if (fBatchInfo.fAntialiasMode >= AntialiasMode::kMSAA) {
- if (!fBatchInfo.isSimpleRects() ||
- AntialiasMode::kMixedSamples == fBatchInfo.fAntialiasMode) {
- this->setWillUseSampleLocations();
- }
- }
-}
-
-class GLSLInstanceProcessor : public GrGLSLGeometryProcessor {
-public:
- void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override;
-
-private:
- void setData(const GrGLSLProgramDataManager&, const GrPrimitiveProcessor&) override {}
-
- class VertexInputs;
- class Backend;
- class BackendNonAA;
- class BackendCoverage;
- class BackendMultisample;
-
- typedef GrGLSLGeometryProcessor INHERITED;
-};
-
-GrGLSLPrimitiveProcessor* InstanceProcessor::createGLSLInstance(const GrGLSLCaps&) const {
- return new GLSLInstanceProcessor();
-}
-
-class GLSLInstanceProcessor::VertexInputs {
-public:
- VertexInputs(const InstanceProcessor& instProc, GrGLSLVertexBuilder* vertexBuilder)
- : fInstProc(instProc),
- fVertexBuilder(vertexBuilder) {
- }
-
- void initParams(const SamplerHandle paramsBuffer) {
- fParamsBuffer = paramsBuffer;
- fVertexBuilder->definef("PARAMS_IDX_MASK", "0x%xu", kParamsIdx_InfoMask);
- fVertexBuilder->appendPrecisionModifier(kHigh_GrSLPrecision);
- fVertexBuilder->codeAppendf("int paramsIdx = int(%s & PARAMS_IDX_MASK);",
- this->attr(Attrib::kInstanceInfo));
- }
-
- const char* attr(Attrib attr) const { return fInstProc.getAttrib((int)attr).fName; }
-
- void fetchNextParam(GrSLType type = kVec4f_GrSLType) const {
- SkASSERT(fParamsBuffer.isValid());
- if (type != kVec4f_GrSLType) {
- fVertexBuilder->codeAppendf("%s(", GrGLSLTypeString(type));
- }
- fVertexBuilder->appendTexelFetch(fParamsBuffer, "paramsIdx++");
- if (type != kVec4f_GrSLType) {
- fVertexBuilder->codeAppend(")");
- }
- }
-
- void skipParams(unsigned n) const {
- SkASSERT(fParamsBuffer.isValid());
- fVertexBuilder->codeAppendf("paramsIdx += %u;", n);
- }
-
-private:
- const InstanceProcessor& fInstProc;
- GrGLSLVertexBuilder* fVertexBuilder;
- SamplerHandle fParamsBuffer;
-};
-
-class GLSLInstanceProcessor::Backend {
-public:
- static Backend* SK_WARN_UNUSED_RESULT Create(const GrGLSLProgramBuilder*, BatchInfo,
- const VertexInputs&);
- virtual ~Backend() {}
-
- void init(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*);
- virtual void setupRect(GrGLSLVertexBuilder*) = 0;
- virtual void setupOval(GrGLSLVertexBuilder*) = 0;
- void setupRRect(GrGLSLVertexBuilder*);
-
- void initInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*);
- virtual void setupInnerRect(GrGLSLVertexBuilder*) = 0;
- virtual void setupInnerOval(GrGLSLVertexBuilder*) = 0;
- void setupInnerRRect(GrGLSLVertexBuilder*);
-
- const char* outShapeCoords() {
- return fModifiedShapeCoords ? fModifiedShapeCoords : fInputs.attr(Attrib::kShapeCoords);
- }
-
- void emitCode(GrGLSLVertexBuilder*, GrGLSLPPFragmentBuilder*, const char* outCoverage,
- const char* outColor);
-
-protected:
- Backend(BatchInfo batchInfo, const VertexInputs& inputs)
- : fBatchInfo(batchInfo),
- fInputs(inputs),
- fModifiesCoverage(false),
- fModifiesColor(false),
- fNeedsNeighborRadii(false),
- fColor(kVec4f_GrSLType),
- fTriangleIsArc(kInt_GrSLType),
- fArcCoords(kVec2f_GrSLType),
- fInnerShapeCoords(kVec2f_GrSLType),
- fInnerRRect(kVec4f_GrSLType),
- fModifiedShapeCoords(nullptr) {
- if (fBatchInfo.fShapeTypes & kRRect_ShapesMask) {
- fModifiedShapeCoords = "adjustedShapeCoords";
- }
- }
-
- virtual void onInit(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) = 0;
- virtual void adjustRRectVertices(GrGLSLVertexBuilder*);
- virtual void onSetupRRect(GrGLSLVertexBuilder*) {}
-
- virtual void onInitInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) = 0;
- virtual void onSetupInnerRRect(GrGLSLVertexBuilder*) = 0;
-
- virtual void onEmitCode(GrGLSLVertexBuilder*, GrGLSLPPFragmentBuilder*,
- const char* outCoverage, const char* outColor) = 0;
-
- void setupSimpleRadii(GrGLSLVertexBuilder*);
- void setupNinePatchRadii(GrGLSLVertexBuilder*);
- void setupComplexRadii(GrGLSLVertexBuilder*);
-
- const BatchInfo fBatchInfo;
- const VertexInputs& fInputs;
- bool fModifiesCoverage;
- bool fModifiesColor;
- bool fNeedsNeighborRadii;
- GrGLSLVertToFrag fColor;
- GrGLSLVertToFrag fTriangleIsArc;
- GrGLSLVertToFrag fArcCoords;
- GrGLSLVertToFrag fInnerShapeCoords;
- GrGLSLVertToFrag fInnerRRect;
- const char* fModifiedShapeCoords;
-};
-
-void GLSLInstanceProcessor::onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) {
- const InstanceProcessor& ip = args.fGP.cast<InstanceProcessor>();
- GrGLSLUniformHandler* uniHandler = args.fUniformHandler;
- GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
- GrGLSLVertexBuilder* v = args.fVertBuilder;
- GrGLSLPPFragmentBuilder* f = args.fFragBuilder;
-
- varyingHandler->emitAttributes(ip);
-
- VertexInputs inputs(ip, v);
- if (ip.batchInfo().fHasParams) {
- SkASSERT(1 == ip.numBuffers());
- inputs.initParams(args.fBufferSamplers[0]);
- }
-
- if (!ip.batchInfo().fHasPerspective) {
- v->codeAppendf("mat2x3 shapeMatrix = mat2x3(%s, %s);",
- inputs.attr(Attrib::kShapeMatrixX), inputs.attr(Attrib::kShapeMatrixY));
- } else {
- v->definef("PERSPECTIVE_FLAG", "0x%xu", kPerspective_InfoFlag);
- v->codeAppendf("mat3 shapeMatrix = mat3(%s, %s, vec3(0, 0, 1));",
- inputs.attr(Attrib::kShapeMatrixX), inputs.attr(Attrib::kShapeMatrixY));
- v->codeAppendf("if (0u != (%s & PERSPECTIVE_FLAG)) {",
- inputs.attr(Attrib::kInstanceInfo));
- v->codeAppend ( "shapeMatrix[2] = ");
- inputs.fetchNextParam(kVec3f_GrSLType);
- v->codeAppend ( ";");
- v->codeAppend ("}");
- }
-
- int usedShapeTypes = 0;
-
- bool hasSingleShapeType = SkIsPow2(ip.batchInfo().fShapeTypes);
- if (!hasSingleShapeType) {
- usedShapeTypes |= ip.batchInfo().fShapeTypes;
- v->define("SHAPE_TYPE_BIT", kShapeType_InfoBit);
- v->codeAppendf("uint shapeType = %s >> SHAPE_TYPE_BIT;",
- inputs.attr(Attrib::kInstanceInfo));
- }
-
- SkAutoTDelete<Backend> backend(Backend::Create(v->getProgramBuilder(), ip.batchInfo(), inputs));
- backend->init(varyingHandler, v);
-
- if (hasSingleShapeType) {
- if (kRect_ShapeFlag == ip.batchInfo().fShapeTypes) {
- backend->setupRect(v);
- } else if (kOval_ShapeFlag == ip.batchInfo().fShapeTypes) {
- backend->setupOval(v);
- } else {
- backend->setupRRect(v);
- }
- } else {
- v->codeAppend ("switch (shapeType) {");
- if (ip.batchInfo().fShapeTypes & kRect_ShapeFlag) {
- v->codeAppend ("case RECT_SHAPE_TYPE: {");
- backend->setupRect(v);
- v->codeAppend ("} break;");
- }
- if (ip.batchInfo().fShapeTypes & kOval_ShapeFlag) {
- v->codeAppend ("case OVAL_SHAPE_TYPE: {");
- backend->setupOval(v);
- v->codeAppend ("} break;");
- }
- if (ip.batchInfo().fShapeTypes & kRRect_ShapesMask) {
- v->codeAppend ("default: {");
- backend->setupRRect(v);
- v->codeAppend ("} break;");
- }
- v->codeAppend ("}");
- }
-
- if (ip.batchInfo().fInnerShapeTypes) {
- bool hasSingleInnerShapeType = SkIsPow2(ip.batchInfo().fInnerShapeTypes);
- if (!hasSingleInnerShapeType) {
- usedShapeTypes |= ip.batchInfo().fInnerShapeTypes;
- v->definef("INNER_SHAPE_TYPE_MASK", "0x%xu", kInnerShapeType_InfoMask);
- v->define("INNER_SHAPE_TYPE_BIT", kInnerShapeType_InfoBit);
- v->codeAppendf("uint innerShapeType = ((%s & INNER_SHAPE_TYPE_MASK) >> "
- "INNER_SHAPE_TYPE_BIT);",
- inputs.attr(Attrib::kInstanceInfo));
- }
- // Here we take advantage of the fact that outerRect == localRect in recordDRRect.
- v->codeAppendf("vec4 outer = %s;", inputs.attr(Attrib::kLocalRect));
- v->codeAppend ("vec4 inner = ");
- inputs.fetchNextParam();
- v->codeAppend (";");
- // outer2Inner is a transform from shape coords to inner shape coords:
- // e.g. innerShapeCoords = shapeCoords * outer2Inner.xy + outer2Inner.zw
- v->codeAppend ("vec4 outer2Inner = vec4(outer.zw - outer.xy, "
- "outer.xy + outer.zw - inner.xy - inner.zw) / "
- "(inner.zw - inner.xy).xyxy;");
- v->codeAppendf("vec2 innerShapeCoords = %s * outer2Inner.xy + outer2Inner.zw;",
- backend->outShapeCoords());
-
- backend->initInnerShape(varyingHandler, v);
-
- if (hasSingleInnerShapeType) {
- if (kRect_ShapeFlag == ip.batchInfo().fInnerShapeTypes) {
- backend->setupInnerRect(v);
- } else if (kOval_ShapeFlag == ip.batchInfo().fInnerShapeTypes) {
- backend->setupInnerOval(v);
- } else {
- backend->setupInnerRRect(v);
- }
- } else {
- v->codeAppend("switch (innerShapeType) {");
- if (ip.batchInfo().fInnerShapeTypes & kRect_ShapeFlag) {
- v->codeAppend("case RECT_SHAPE_TYPE: {");
- backend->setupInnerRect(v);
- v->codeAppend("} break;");
- }
- if (ip.batchInfo().fInnerShapeTypes & kOval_ShapeFlag) {
- v->codeAppend("case OVAL_SHAPE_TYPE: {");
- backend->setupInnerOval(v);
- v->codeAppend("} break;");
- }
- if (ip.batchInfo().fInnerShapeTypes & kRRect_ShapesMask) {
- v->codeAppend("default: {");
- backend->setupInnerRRect(v);
- v->codeAppend("} break;");
- }
- v->codeAppend("}");
- }
- }
-
- if (usedShapeTypes & kRect_ShapeFlag) {
- v->definef("RECT_SHAPE_TYPE", "%du", (int)ShapeType::kRect);
- }
- if (usedShapeTypes & kOval_ShapeFlag) {
- v->definef("OVAL_SHAPE_TYPE", "%du", (int)ShapeType::kOval);
- }
-
- backend->emitCode(v, f, args.fOutputCoverage, args.fOutputColor);
-
- const char* localCoords = nullptr;
- if (ip.batchInfo().fUsesLocalCoords) {
- localCoords = "localCoords";
- v->codeAppendf("vec2 t = 0.5 * (%s + vec2(1));", backend->outShapeCoords());
- v->codeAppendf("vec2 localCoords = (1.0 - t) * %s.xy + t * %s.zw;",
- inputs.attr(Attrib::kLocalRect), inputs.attr(Attrib::kLocalRect));
- }
- if (ip.batchInfo().fHasLocalMatrix && ip.batchInfo().fHasParams) {
- v->definef("LOCAL_MATRIX_FLAG", "0x%xu", kLocalMatrix_InfoFlag);
- v->codeAppendf("if (0u != (%s & LOCAL_MATRIX_FLAG)) {",
- inputs.attr(Attrib::kInstanceInfo));
- if (!ip.batchInfo().fUsesLocalCoords) {
- inputs.skipParams(2);
- } else {
- v->codeAppendf( "mat2x3 localMatrix;");
- v->codeAppend ( "localMatrix[0] = ");
- inputs.fetchNextParam(kVec3f_GrSLType);
- v->codeAppend ( ";");
- v->codeAppend ( "localMatrix[1] = ");
- inputs.fetchNextParam(kVec3f_GrSLType);
- v->codeAppend ( ";");
- v->codeAppend ( "localCoords = (vec3(localCoords, 1) * localMatrix).xy;");
- }
- v->codeAppend("}");
- }
-
- GrSLType positionType = ip.batchInfo().fHasPerspective ? kVec3f_GrSLType : kVec2f_GrSLType;
- v->codeAppendf("%s deviceCoords = vec3(%s, 1) * shapeMatrix;",
- GrGLSLTypeString(positionType), backend->outShapeCoords());
- gpArgs->fPositionVar.set(positionType, "deviceCoords");
-
- this->emitTransforms(v, varyingHandler, uniHandler, gpArgs->fPositionVar, localCoords,
- args.fTransformsIn, args.fTransformsOut);
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-void GLSLInstanceProcessor::Backend::init(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- if (fModifiedShapeCoords) {
- v->codeAppendf("vec2 %s = %s;", fModifiedShapeCoords, fInputs.attr(Attrib::kShapeCoords));
- }
-
- this->onInit(varyingHandler, v);
-
- if (!fColor.vsOut()) {
- varyingHandler->addFlatVarying("color", &fColor, kLow_GrSLPrecision);
- v->codeAppendf("%s = %s;", fColor.vsOut(), fInputs.attr(Attrib::kColor));
- }
-}
-
-void GLSLInstanceProcessor::Backend::setupRRect(GrGLSLVertexBuilder* v) {
- v->codeAppendf("uvec2 corner = uvec2(%s & 1, (%s >> 1) & 1);",
- fInputs.attr(Attrib::kVertexAttrs), fInputs.attr(Attrib::kVertexAttrs));
- v->codeAppend ("vec2 cornerSign = vec2(corner) * 2.0 - 1.0;");
- v->codeAppendf("vec2 radii%s;", fNeedsNeighborRadii ? ", neighborRadii" : "");
- v->codeAppend ("mat2 p = ");
- fInputs.fetchNextParam(kMat22f_GrSLType);
- v->codeAppend (";");
- uint8_t types = fBatchInfo.fShapeTypes & kRRect_ShapesMask;
- if (0 == (types & (types - 1))) {
- if (kSimpleRRect_ShapeFlag == types) {
- this->setupSimpleRadii(v);
- } else if (kNinePatch_ShapeFlag == types) {
- this->setupNinePatchRadii(v);
- } else if (kComplexRRect_ShapeFlag == types) {
- this->setupComplexRadii(v);
- }
- } else {
- v->codeAppend("switch (shapeType) {");
- if (types & kSimpleRRect_ShapeFlag) {
- v->definef("SIMPLE_R_RECT_SHAPE_TYPE", "%du", (int)ShapeType::kSimpleRRect);
- v->codeAppend ("case SIMPLE_R_RECT_SHAPE_TYPE: {");
- this->setupSimpleRadii(v);
- v->codeAppend ("} break;");
- }
- if (types & kNinePatch_ShapeFlag) {
- v->definef("NINE_PATCH_SHAPE_TYPE", "%du", (int)ShapeType::kNinePatch);
- v->codeAppend ("case NINE_PATCH_SHAPE_TYPE: {");
- this->setupNinePatchRadii(v);
- v->codeAppend ("} break;");
- }
- if (types & kComplexRRect_ShapeFlag) {
- v->codeAppend ("default: {");
- this->setupComplexRadii(v);
- v->codeAppend ("} break;");
- }
- v->codeAppend("}");
- }
-
- this->adjustRRectVertices(v);
-
- if (fArcCoords.vsOut()) {
- v->codeAppendf("%s = (cornerSign * %s + radii - vec2(1)) / radii;",
- fArcCoords.vsOut(), fModifiedShapeCoords);
- }
- if (fTriangleIsArc.vsOut()) {
- v->codeAppendf("%s = int(all(equal(vec2(1), abs(%s))));",
- fTriangleIsArc.vsOut(), fInputs.attr(Attrib::kShapeCoords));
- }
-
- this->onSetupRRect(v);
-}
-
-void GLSLInstanceProcessor::Backend::setupSimpleRadii(GrGLSLVertexBuilder* v) {
- if (fNeedsNeighborRadii) {
- v->codeAppend ("neighborRadii = ");
- }
- v->codeAppend("radii = p[0] * 2.0 / p[1];");
-}
-
-void GLSLInstanceProcessor::Backend::setupNinePatchRadii(GrGLSLVertexBuilder* v) {
- v->codeAppend("radii = vec2(p[0][corner.x], p[1][corner.y]);");
- if (fNeedsNeighborRadii) {
- v->codeAppend("neighborRadii = vec2(p[0][1u - corner.x], p[1][1u - corner.y]);");
- }
-}
-
-void GLSLInstanceProcessor::Backend::setupComplexRadii(GrGLSLVertexBuilder* v) {
- /**
- * The x and y radii of each arc are stored in separate vectors,
- * in the following order:
- *
- * __x1 _ _ _ x3__
- *
- * y1 | | y2
- *
- * | |
- *
- * y3 |__ _ _ _ __| y4
- * x2 x4
- *
- */
- v->codeAppend("mat2 p2 = ");
- fInputs.fetchNextParam(kMat22f_GrSLType);
- v->codeAppend(";");
- v->codeAppend("radii = vec2(p[corner.x][corner.y], p2[corner.y][corner.x]);");
- if (fNeedsNeighborRadii) {
- v->codeAppend("neighborRadii = vec2(p[1u - corner.x][corner.y], "
- "p2[1u - corner.y][corner.x]);");
- }
-}
-
-void GLSLInstanceProcessor::Backend::adjustRRectVertices(GrGLSLVertexBuilder* v) {
- // Resize the 4 triangles that arcs are drawn into so they match their corresponding radii.
- // 0.5 is a special value that indicates the edge of an arc triangle.
- v->codeAppendf("if (abs(%s.x) == 0.5)"
- "%s.x = cornerSign.x * (1.0 - radii.x);",
- fInputs.attr(Attrib::kShapeCoords), fModifiedShapeCoords);
- v->codeAppendf("if (abs(%s.y) == 0.5) "
- "%s.y = cornerSign.y * (1.0 - radii.y);",
- fInputs.attr(Attrib::kShapeCoords), fModifiedShapeCoords);
-}
-
-void GLSLInstanceProcessor::Backend::initInnerShape(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- SkASSERT(!(fBatchInfo.fInnerShapeTypes & (kNinePatch_ShapeFlag | kComplexRRect_ShapeFlag)));
-
- this->onInitInnerShape(varyingHandler, v);
-
- if (fInnerShapeCoords.vsOut()) {
- v->codeAppendf("%s = innerShapeCoords;", fInnerShapeCoords.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::Backend::setupInnerRRect(GrGLSLVertexBuilder* v) {
- v->codeAppend("mat2 innerP = ");
- fInputs.fetchNextParam(kMat22f_GrSLType);
- v->codeAppend(";");
- v->codeAppend("vec2 innerRadii = innerP[0] * 2.0 / innerP[1];");
- this->onSetupInnerRRect(v);
-}
-
-void GLSLInstanceProcessor::Backend::emitCode(GrGLSLVertexBuilder* v, GrGLSLPPFragmentBuilder* f,
- const char* outCoverage, const char* outColor) {
- this->onEmitCode(v, f, fModifiesCoverage ? outCoverage : nullptr,
- fModifiesColor ? outColor : nullptr);
- if (!fModifiesCoverage) {
- // Even though the subclass doesn't use coverage, we are expected to assign some value.
- f->codeAppendf("%s = vec4(1);", outCoverage);
- }
- if (!fModifiesColor) {
- // The subclass didn't assign a value to the output color.
- f->codeAppendf("%s = %s;", outColor, fColor.fsIn());
- }
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-class GLSLInstanceProcessor::BackendNonAA : public Backend {
-public:
- BackendNonAA(BatchInfo batchInfo, const VertexInputs& inputs)
- : INHERITED(batchInfo, inputs) {
- if (fBatchInfo.fCannotDiscard && !fBatchInfo.isSimpleRects()) {
- fModifiesColor = !fBatchInfo.fCannotTweakAlphaForCoverage;
- fModifiesCoverage = !fModifiesColor;
- }
- }
-
-private:
- void onInit(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupRect(GrGLSLVertexBuilder*) override;
- void setupOval(GrGLSLVertexBuilder*) override;
-
- void onInitInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupInnerRect(GrGLSLVertexBuilder*) override;
- void setupInnerOval(GrGLSLVertexBuilder*) override;
- void onSetupInnerRRect(GrGLSLVertexBuilder*) override;
-
- void onEmitCode(GrGLSLVertexBuilder*, GrGLSLPPFragmentBuilder*, const char*,
- const char*) override;
-
- typedef Backend INHERITED;
-};
-
-void GLSLInstanceProcessor::BackendNonAA::onInit(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder*) {
- if (kRect_ShapeFlag != fBatchInfo.fShapeTypes) {
- varyingHandler->addFlatVarying("triangleIsArc", &fTriangleIsArc, kHigh_GrSLPrecision);
- varyingHandler->addVarying("arcCoords", &fArcCoords, kMedium_GrSLPrecision);
- }
-}
-
-void GLSLInstanceProcessor::BackendNonAA::setupRect(GrGLSLVertexBuilder* v) {
- if (fTriangleIsArc.vsOut()) {
- v->codeAppendf("%s = 0;", fTriangleIsArc.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendNonAA::setupOval(GrGLSLVertexBuilder* v) {
- SkASSERT(fArcCoords.vsOut());
- SkASSERT(fTriangleIsArc.vsOut());
- v->codeAppendf("%s = %s;", fArcCoords.vsOut(), this->outShapeCoords());
- v->codeAppendf("%s = %s & 1;", fTriangleIsArc.vsOut(), fInputs.attr(Attrib::kVertexAttrs));
-}
-
-void GLSLInstanceProcessor::BackendNonAA::onInitInnerShape(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder*) {
- varyingHandler->addVarying("innerShapeCoords", &fInnerShapeCoords, kMedium_GrSLPrecision);
- if (kRect_ShapeFlag != fBatchInfo.fInnerShapeTypes &&
- kOval_ShapeFlag != fBatchInfo.fInnerShapeTypes) {
- varyingHandler->addFlatVarying("innerRRect", &fInnerRRect, kMedium_GrSLPrecision);
- }
-}
-
-void GLSLInstanceProcessor::BackendNonAA::setupInnerRect(GrGLSLVertexBuilder* v) {
- if (fInnerRRect.vsOut()) {
- v->codeAppendf("%s = vec4(1);", fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendNonAA::setupInnerOval(GrGLSLVertexBuilder* v) {
- if (fInnerRRect.vsOut()) {
- v->codeAppendf("%s = vec4(0, 0, 1, 1);", fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendNonAA::onSetupInnerRRect(GrGLSLVertexBuilder* v) {
- v->codeAppendf("%s = vec4(1.0 - innerRadii, 1.0 / innerRadii);", fInnerRRect.vsOut());
-}
-
-void GLSLInstanceProcessor::BackendNonAA::onEmitCode(GrGLSLVertexBuilder*,
- GrGLSLPPFragmentBuilder* f,
- const char* outCoverage,
- const char* outColor) {
- const char* dropFragment = nullptr;
- if (!fBatchInfo.fCannotDiscard) {
- dropFragment = "discard";
- } else if (fModifiesCoverage) {
- f->appendPrecisionModifier(kLow_GrSLPrecision);
- f->codeAppend ("float covered = 1.0;");
- dropFragment = "covered = 0.0";
- } else if (fModifiesColor) {
- f->appendPrecisionModifier(kLow_GrSLPrecision);
- f->codeAppendf("vec4 color = %s;", fColor.fsIn());
- dropFragment = "color = vec4(0)";
- }
- if (fTriangleIsArc.fsIn()) {
- SkASSERT(dropFragment);
- f->codeAppendf("if (%s != 0 && dot(%s, %s) > 1.0) %s;",
- fTriangleIsArc.fsIn(), fArcCoords.fsIn(), fArcCoords.fsIn(), dropFragment);
- }
- if (fBatchInfo.fInnerShapeTypes) {
- SkASSERT(dropFragment);
- f->codeAppendf("// Inner shape.\n");
- if (kRect_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- f->codeAppendf("if (all(lessThanEqual(abs(%s), vec2(1)))) %s;",
- fInnerShapeCoords.fsIn(), dropFragment);
- } else if (kOval_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- f->codeAppendf("if ((dot(%s, %s) <= 1.0)) %s;",
- fInnerShapeCoords.fsIn(), fInnerShapeCoords.fsIn(), dropFragment);
- } else {
- f->codeAppendf("if (all(lessThan(abs(%s), vec2(1)))) {", fInnerShapeCoords.fsIn());
- f->codeAppendf( "vec2 distanceToArcEdge = abs(%s) - %s.xy;",
- fInnerShapeCoords.fsIn(), fInnerRRect.fsIn());
- f->codeAppend ( "if (any(lessThan(distanceToArcEdge, vec2(0)))) {");
- f->codeAppendf( "%s;", dropFragment);
- f->codeAppend ( "} else {");
- f->codeAppendf( "vec2 rrectCoords = distanceToArcEdge * %s.zw;",
- fInnerRRect.fsIn());
- f->codeAppend ( "if (dot(rrectCoords, rrectCoords) <= 1.0) {");
- f->codeAppendf( "%s;", dropFragment);
- f->codeAppend ( "}");
- f->codeAppend ( "}");
- f->codeAppend ("}");
- }
- }
- if (fModifiesCoverage) {
- f->codeAppendf("%s = vec4(covered);", outCoverage);
- } else if (fModifiesColor) {
- f->codeAppendf("%s = color;", outColor);
- }
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-class GLSLInstanceProcessor::BackendCoverage : public Backend {
-public:
- BackendCoverage(BatchInfo batchInfo, const VertexInputs& inputs)
- : INHERITED(batchInfo, inputs),
- fColorTimesRectCoverage(kVec4f_GrSLType),
- fRectCoverage(kFloat_GrSLType),
- fEllipseCoords(kVec2f_GrSLType),
- fEllipseName(kVec2f_GrSLType),
- fBloatedRadius(kFloat_GrSLType),
- fDistanceToInnerEdge(kVec2f_GrSLType),
- fInnerShapeBloatedHalfSize(kVec2f_GrSLType),
- fInnerEllipseCoords(kVec2f_GrSLType),
- fInnerEllipseName(kVec2f_GrSLType) {
- fShapeIsCircle = !fBatchInfo.fNonSquare && !(fBatchInfo.fShapeTypes & kRRect_ShapesMask);
- fTweakAlphaForCoverage = !fBatchInfo.fCannotTweakAlphaForCoverage &&
- !fBatchInfo.fInnerShapeTypes;
- fModifiesCoverage = !fTweakAlphaForCoverage;
- fModifiesColor = fTweakAlphaForCoverage;
- fModifiedShapeCoords = "bloatedShapeCoords";
- }
-
-private:
- void onInit(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupRect(GrGLSLVertexBuilder*) override;
- void setupOval(GrGLSLVertexBuilder*) override;
- void adjustRRectVertices(GrGLSLVertexBuilder*) override;
- void onSetupRRect(GrGLSLVertexBuilder*) override;
-
- void onInitInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupInnerRect(GrGLSLVertexBuilder*) override;
- void setupInnerOval(GrGLSLVertexBuilder*) override;
- void onSetupInnerRRect(GrGLSLVertexBuilder*) override;
-
- void onEmitCode(GrGLSLVertexBuilder*, GrGLSLPPFragmentBuilder*, const char* outCoverage,
- const char* outColor) override;
-
- void emitRect(GrGLSLPPFragmentBuilder*, const char* outCoverage, const char* outColor);
- void emitCircle(GrGLSLPPFragmentBuilder*, const char* outCoverage);
- void emitArc(GrGLSLPPFragmentBuilder* f, const char* ellipseCoords, const char* ellipseName,
- bool ellipseCoordsNeedClamp, bool ellipseCoordsMayBeNegative,
- const char* outCoverage);
- void emitInnerRect(GrGLSLPPFragmentBuilder*, const char* outCoverage);
-
- GrGLSLVertToFrag fColorTimesRectCoverage;
- GrGLSLVertToFrag fRectCoverage;
- GrGLSLVertToFrag fEllipseCoords;
- GrGLSLVertToFrag fEllipseName;
- GrGLSLVertToFrag fBloatedRadius;
- GrGLSLVertToFrag fDistanceToInnerEdge;
- GrGLSLVertToFrag fInnerShapeBloatedHalfSize;
- GrGLSLVertToFrag fInnerEllipseCoords;
- GrGLSLVertToFrag fInnerEllipseName;
- bool fShapeIsCircle;
- bool fTweakAlphaForCoverage;
-
- typedef Backend INHERITED;
-};
-
-void GLSLInstanceProcessor::BackendCoverage::onInit(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- v->codeAppend ("mat2 shapeTransposeMatrix = transpose(mat2(shapeMatrix));");
- v->codeAppend ("vec2 shapeHalfSize = vec2(length(shapeTransposeMatrix[0]), "
- "length(shapeTransposeMatrix[1]));");
- v->codeAppend ("vec2 bloat = 0.5 / shapeHalfSize;");
- v->codeAppendf("bloatedShapeCoords = %s * (1.0 + bloat);", fInputs.attr(Attrib::kShapeCoords));
-
- if (kOval_ShapeFlag != fBatchInfo.fShapeTypes) {
- if (fTweakAlphaForCoverage) {
- varyingHandler->addVarying("colorTimesRectCoverage", &fColorTimesRectCoverage,
- kLow_GrSLPrecision);
- if (kRect_ShapeFlag == fBatchInfo.fShapeTypes) {
- fColor = fColorTimesRectCoverage;
- }
- } else {
- varyingHandler->addVarying("rectCoverage", &fRectCoverage, kLow_GrSLPrecision);
- }
- v->codeAppend("float rectCoverage = 0.0;");
- }
- if (kRect_ShapeFlag != fBatchInfo.fShapeTypes) {
- varyingHandler->addFlatVarying("triangleIsArc", &fTriangleIsArc, kHigh_GrSLPrecision);
- if (!fShapeIsCircle) {
- varyingHandler->addVarying("ellipseCoords", &fEllipseCoords, kHigh_GrSLPrecision);
- varyingHandler->addFlatVarying("ellipseName", &fEllipseName, kHigh_GrSLPrecision);
- } else {
- varyingHandler->addVarying("circleCoords", &fEllipseCoords, kMedium_GrSLPrecision);
- varyingHandler->addFlatVarying("bloatedRadius", &fBloatedRadius, kMedium_GrSLPrecision);
- }
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::setupRect(GrGLSLVertexBuilder* v) {
- // Make the border one pixel wide. Inner vs outer is indicated by coordAttrs.
- v->codeAppendf("vec2 rectBloat = (%s != 0) ? bloat : -bloat;",
- fInputs.attr(Attrib::kVertexAttrs));
- // Here we use the absolute value, because when the rect is thinner than a pixel, this makes it
- // mark the spot where pixel center is within half a pixel of the *opposite* edge. This,
- // combined with the "maxCoverage" logic below gives us mathematically correct coverage even for
- // subpixel rectangles.
- v->codeAppendf("bloatedShapeCoords = %s * abs(vec2(1.0 + rectBloat));",
- fInputs.attr(Attrib::kShapeCoords));
-
- // Determine coverage at the vertex. Coverage naturally ramps from 0 to 1 unless the rect is
- // narrower than a pixel.
- v->codeAppend ("float maxCoverage = 4.0 * min(0.5, shapeHalfSize.x) *"
- "min(0.5, shapeHalfSize.y);");
- v->codeAppendf("rectCoverage = (%s != 0) ? 0.0 : maxCoverage;",
- fInputs.attr(Attrib::kVertexAttrs));
-
- if (fTriangleIsArc.vsOut()) {
- v->codeAppendf("%s = 0;", fTriangleIsArc.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::setupOval(GrGLSLVertexBuilder* v) {
- // Offset the inner and outer octagons by one pixel. Inner vs outer is indicated by coordAttrs.
- v->codeAppendf("vec2 ovalBloat = (%s != 0) ? bloat : -bloat;",
- fInputs.attr(Attrib::kVertexAttrs));
- v->codeAppendf("bloatedShapeCoords = %s * max(vec2(1.0 + ovalBloat), vec2(0));",
- fInputs.attr(Attrib::kShapeCoords));
- v->codeAppendf("%s = bloatedShapeCoords * shapeHalfSize;", fEllipseCoords.vsOut());
- if (fEllipseName.vsOut()) {
- v->codeAppendf("%s = 1.0 / (shapeHalfSize * shapeHalfSize);", fEllipseName.vsOut());
- }
- if (fBloatedRadius.vsOut()) {
- SkASSERT(fShapeIsCircle);
- v->codeAppendf("%s = shapeHalfSize.x + 0.5;", fBloatedRadius.vsOut());
- }
- if (fTriangleIsArc.vsOut()) {
- v->codeAppendf("%s = int(%s != 0);",
- fTriangleIsArc.vsOut(), fInputs.attr(Attrib::kVertexAttrs));
- }
- if (fColorTimesRectCoverage.vsOut() || fRectCoverage.vsOut()) {
- v->codeAppendf("rectCoverage = 1.0;");
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::adjustRRectVertices(GrGLSLVertexBuilder* v) {
- // We try to let the AA borders line up with the arc edges on their particular side, but we
- // can't allow them to get closer than one half pixel to the edge or they might overlap with
- // their neighboring border.
- v->codeAppend("vec2 innerEdge = max(1.0 - bloat, vec2(0));");
- v->codeAppend ("vec2 borderEdge = cornerSign * clamp(1.0 - radii, -innerEdge, innerEdge);");
- // 0.5 is a special value that indicates this vertex is an arc edge.
- v->codeAppendf("if (abs(%s.x) == 0.5)"
- "bloatedShapeCoords.x = borderEdge.x;", fInputs.attr(Attrib::kShapeCoords));
- v->codeAppendf("if (abs(%s.y) == 0.5)"
- "bloatedShapeCoords.y = borderEdge.y;", fInputs.attr(Attrib::kShapeCoords));
-
- // Adjust the interior border vertices to make the border one pixel wide. 0.75 is a special
- // value to indicate these points.
- v->codeAppendf("if (abs(%s.x) == 0.75) "
- "bloatedShapeCoords.x = cornerSign.x * innerEdge.x;",
- fInputs.attr(Attrib::kShapeCoords));
- v->codeAppendf("if (abs(%s.y) == 0.75) "
- "bloatedShapeCoords.y = cornerSign.y * innerEdge.y;",
- fInputs.attr(Attrib::kShapeCoords));
-}
-
-void GLSLInstanceProcessor::BackendCoverage::onSetupRRect(GrGLSLVertexBuilder* v) {
- // The geometry is laid out in such a way that rectCoverage will be 0 and 1 on the vertices, but
- // we still need to recompute this value because when the rrect gets thinner than one pixel, the
- // interior edge of the border will necessarily clamp, and we need to match the AA behavior of
- // the arc segments (i.e. distance from bloated edge only; ignoring the fact that the pixel
- // actully has less coverage because it's not completely inside the opposite edge.)
- v->codeAppend("vec2 d = shapeHalfSize + 0.5 - abs(bloatedShapeCoords) * shapeHalfSize;");
- v->codeAppend("rectCoverage = min(d.x, d.y);");
-
- SkASSERT(!fShapeIsCircle);
- // The AA border does not get closer than one half pixel to the edge of the rect, so to get a
- // smooth transition from flat edge to arc, we don't allow the radii to be smaller than one half
- // pixel. (We don't worry about the transition on the opposite side when a radius is so large
- // that the border clamped on that side.)
- v->codeAppendf("vec2 clampedRadii = max(radii, bloat);");
- v->codeAppendf("%s = (cornerSign * bloatedShapeCoords + clampedRadii - vec2(1)) * "
- "shapeHalfSize;", fEllipseCoords.vsOut());
- v->codeAppendf("%s = 1.0 / (clampedRadii * clampedRadii * shapeHalfSize * shapeHalfSize);",
- fEllipseName.vsOut());
-}
-
-void GLSLInstanceProcessor::BackendCoverage::onInitInnerShape(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- v->codeAppend("vec2 innerShapeHalfSize = shapeHalfSize / outer2Inner.xy;");
-
- if (kOval_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- varyingHandler->addVarying("innerEllipseCoords", &fInnerEllipseCoords,
- kMedium_GrSLPrecision);
- varyingHandler->addFlatVarying("innerEllipseName", &fInnerEllipseName,
- kMedium_GrSLPrecision);
- } else {
- varyingHandler->addVarying("distanceToInnerEdge", &fDistanceToInnerEdge,
- kMedium_GrSLPrecision);
- varyingHandler->addFlatVarying("innerShapeBloatedHalfSize", &fInnerShapeBloatedHalfSize,
- kMedium_GrSLPrecision);
- if (kRect_ShapeFlag != fBatchInfo.fInnerShapeTypes) {
- varyingHandler->addVarying("innerShapeCoords", &fInnerShapeCoords, kHigh_GrSLPrecision);
- varyingHandler->addFlatVarying("innerEllipseName", &fInnerEllipseName,
- kMedium_GrSLPrecision);
- varyingHandler->addFlatVarying("innerRRect", &fInnerRRect, kHigh_GrSLPrecision);
- }
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::setupInnerRect(GrGLSLVertexBuilder* v) {
- if (fInnerRRect.vsOut()) {
- // The fragment shader will generalize every inner shape as a round rect. Since this one
- // is a rect, we simply emit bogus parameters for the round rect (effectively negative
- // radii) that ensure the fragment shader always takes the "emitRect" codepath.
- v->codeAppendf("%s.xy = abs(outer2Inner.xy) * (1.0 + bloat) + abs(outer2Inner.zw);",
- fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::setupInnerOval(GrGLSLVertexBuilder* v) {
- v->codeAppendf("%s = 1.0 / (innerShapeHalfSize * innerShapeHalfSize);",
- fInnerEllipseName.vsOut());
- if (fInnerEllipseCoords.vsOut()) {
- v->codeAppendf("%s = innerShapeCoords * innerShapeHalfSize;", fInnerEllipseCoords.vsOut());
- }
- if (fInnerRRect.vsOut()) {
- v->codeAppendf("%s = vec4(0, 0, innerShapeHalfSize);", fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::onSetupInnerRRect(GrGLSLVertexBuilder* v) {
- // The distance to ellipse formula doesn't work well when the radii are less than half a pixel.
- v->codeAppend ("innerRadii = max(innerRadii, bloat);");
- v->codeAppendf("%s = 1.0 / (innerRadii * innerRadii * innerShapeHalfSize * "
- "innerShapeHalfSize);",
- fInnerEllipseName.vsOut());
- v->codeAppendf("%s = vec4(1.0 - innerRadii, innerShapeHalfSize);", fInnerRRect.vsOut());
-}
-
-void GLSLInstanceProcessor::BackendCoverage::onEmitCode(GrGLSLVertexBuilder* v,
- GrGLSLPPFragmentBuilder* f,
- const char* outCoverage,
- const char* outColor) {
- if (fColorTimesRectCoverage.vsOut()) {
- SkASSERT(!fRectCoverage.vsOut());
- v->codeAppendf("%s = %s * rectCoverage;",
- fColorTimesRectCoverage.vsOut(), fInputs.attr(Attrib::kColor));
- }
- if (fRectCoverage.vsOut()) {
- SkASSERT(!fColorTimesRectCoverage.vsOut());
- v->codeAppendf("%s = rectCoverage;", fRectCoverage.vsOut());
- }
-
- SkString coverage("float coverage");
- if (f->getProgramBuilder()->glslCaps()->usesPrecisionModifiers()) {
- coverage.prependf("lowp ");
- }
- if (fBatchInfo.fInnerShapeTypes || (!fTweakAlphaForCoverage && fTriangleIsArc.fsIn())) {
- f->codeAppendf("%s;", coverage.c_str());
- coverage = "coverage";
- }
- if (fTriangleIsArc.fsIn()) {
- f->codeAppendf("if (%s == 0) {", fTriangleIsArc.fsIn());
- this->emitRect(f, coverage.c_str(), outColor);
- f->codeAppend ("} else {");
- if (fShapeIsCircle) {
- this->emitCircle(f, coverage.c_str());
- } else {
- bool ellipseCoordsMayBeNegative = SkToBool(fBatchInfo.fShapeTypes & kOval_ShapeFlag);
- this->emitArc(f, fEllipseCoords.fsIn(), fEllipseName.fsIn(),
- true /*ellipseCoordsNeedClamp*/, ellipseCoordsMayBeNegative,
- coverage.c_str());
- }
- if (fTweakAlphaForCoverage) {
- f->codeAppendf("%s = %s * coverage;", outColor, fColor.fsIn());
- }
- f->codeAppend ("}");
- } else {
- this->emitRect(f, coverage.c_str(), outColor);
- }
-
- if (fBatchInfo.fInnerShapeTypes) {
- f->codeAppendf("// Inner shape.\n");
- SkString innerCoverageDecl("float innerCoverage");
- if (f->getProgramBuilder()->glslCaps()->usesPrecisionModifiers()) {
- innerCoverageDecl.prependf("lowp ");
- }
- if (kOval_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- this->emitArc(f, fInnerEllipseCoords.fsIn(), fInnerEllipseName.fsIn(),
- true /*ellipseCoordsNeedClamp*/, true /*ellipseCoordsMayBeNegative*/,
- innerCoverageDecl.c_str());
- } else {
- v->codeAppendf("%s = innerShapeCoords * innerShapeHalfSize;",
- fDistanceToInnerEdge.vsOut());
- v->codeAppendf("%s = innerShapeHalfSize + 0.5;", fInnerShapeBloatedHalfSize.vsOut());
-
- if (kRect_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- this->emitInnerRect(f, innerCoverageDecl.c_str());
- } else {
- f->codeAppendf("%s = 0.0;", innerCoverageDecl.c_str());
- f->codeAppendf("vec2 distanceToArcEdge = abs(%s) - %s.xy;",
- fInnerShapeCoords.fsIn(), fInnerRRect.fsIn());
- f->codeAppend ("if (any(lessThan(distanceToArcEdge, vec2(1e-5)))) {");
- this->emitInnerRect(f, "innerCoverage");
- f->codeAppend ("} else {");
- f->codeAppendf( "vec2 ellipseCoords = distanceToArcEdge * %s.zw;",
- fInnerRRect.fsIn());
- this->emitArc(f, "ellipseCoords", fInnerEllipseName.fsIn(),
- false /*ellipseCoordsNeedClamp*/,
- false /*ellipseCoordsMayBeNegative*/, "innerCoverage");
- f->codeAppend ("}");
- }
- }
- f->codeAppendf("%s = vec4(max(coverage - innerCoverage, 0.0));", outCoverage);
- } else if (!fTweakAlphaForCoverage) {
- f->codeAppendf("%s = vec4(coverage);", outCoverage);
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::emitRect(GrGLSLPPFragmentBuilder* f,
- const char* outCoverage,
- const char* outColor) {
- if (fColorTimesRectCoverage.fsIn()) {
- f->codeAppendf("%s = %s;", outColor, fColorTimesRectCoverage.fsIn());
- } else if (fTweakAlphaForCoverage) {
- // We are drawing just ovals. The interior rect always has 100% coverage.
- f->codeAppendf("%s = %s;", outColor, fColor.fsIn());
- } else if (fRectCoverage.fsIn()) {
- f->codeAppendf("%s = %s;", outCoverage, fRectCoverage.fsIn());
- } else {
- f->codeAppendf("%s = 1.0;", outCoverage);
- }
-}
-
-void GLSLInstanceProcessor::BackendCoverage::emitCircle(GrGLSLPPFragmentBuilder* f,
- const char* outCoverage) {
- // TODO: circleCoords = max(circleCoords, 0) if we decide to do this optimization on rrects.
- SkASSERT(!(kRRect_ShapesMask & fBatchInfo.fShapeTypes));
- f->codeAppendf("float distanceToEdge = %s - length(%s);",
- fBloatedRadius.fsIn(), fEllipseCoords.fsIn());
- f->codeAppendf("%s = clamp(distanceToEdge, 0.0, 1.0);", outCoverage);
-}
-
-void GLSLInstanceProcessor::BackendCoverage::emitArc(GrGLSLPPFragmentBuilder* f,
- const char* ellipseCoords,
- const char* ellipseName,
- bool ellipseCoordsNeedClamp,
- bool ellipseCoordsMayBeNegative,
- const char* outCoverage) {
- SkASSERT(!ellipseCoordsMayBeNegative || ellipseCoordsNeedClamp);
- if (ellipseCoordsNeedClamp) {
- // This serves two purposes:
- // - To restrict the arcs of rounded rects to their positive quadrants.
- // - To avoid inversesqrt(0) in the ellipse formula.
- if (ellipseCoordsMayBeNegative) {
- f->codeAppendf("vec2 ellipseClampedCoords = max(abs(%s), vec2(1e-4));", ellipseCoords);
- } else {
- f->codeAppendf("vec2 ellipseClampedCoords = max(%s, vec2(1e-4));", ellipseCoords);
- }
- ellipseCoords = "ellipseClampedCoords";
- }
- // ellipseCoords are in pixel space and ellipseName is 1 / rx^2, 1 / ry^2.
- f->codeAppendf("vec2 Z = %s * %s;", ellipseCoords, ellipseName);
- // implicit is the evaluation of (x/rx)^2 + (y/ry)^2 - 1.
- f->codeAppendf("float implicit = dot(Z, %s) - 1.0;", ellipseCoords);
- // gradDot is the squared length of the gradient of the implicit.
- f->codeAppendf("float gradDot = 4.0 * dot(Z, Z);");
- f->appendPrecisionModifier(kLow_GrSLPrecision);
- f->codeAppend ("float approxDist = implicit * inversesqrt(gradDot);");
- f->codeAppendf("%s = clamp(0.5 - approxDist, 0.0, 1.0);", outCoverage);
-}
-
-void GLSLInstanceProcessor::BackendCoverage::emitInnerRect(GrGLSLPPFragmentBuilder* f,
- const char* outCoverage) {
- f->appendPrecisionModifier(kLow_GrSLPrecision);
- f->codeAppendf("vec2 c = %s - abs(%s);",
- fInnerShapeBloatedHalfSize.fsIn(), fDistanceToInnerEdge.fsIn());
- f->codeAppendf("%s = clamp(min(c.x, c.y), 0.0, 1.0);", outCoverage);
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-class GLSLInstanceProcessor::BackendMultisample : public Backend {
-public:
- BackendMultisample(BatchInfo batchInfo, const VertexInputs& inputs, int effectiveSampleCnt)
- : INHERITED(batchInfo, inputs),
- fEffectiveSampleCnt(effectiveSampleCnt),
- fShapeCoords(kVec2f_GrSLType),
- fShapeInverseMatrix(kMat22f_GrSLType),
- fFragShapeHalfSpan(kVec2f_GrSLType),
- fArcTest(kVec2f_GrSLType),
- fArcInverseMatrix(kMat22f_GrSLType),
- fFragArcHalfSpan(kVec2f_GrSLType),
- fEarlyAccept(kInt_GrSLType),
- fInnerShapeInverseMatrix(kMat22f_GrSLType),
- fFragInnerShapeHalfSpan(kVec2f_GrSLType) {
- fRectTrianglesMaySplit = fBatchInfo.fHasPerspective;
- fNeedsNeighborRadii = this->isMixedSampled() && !fBatchInfo.fHasPerspective;
- }
-
-private:
- bool isMixedSampled() const { return AntialiasMode::kMixedSamples == fBatchInfo.fAntialiasMode; }
-
- void onInit(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupRect(GrGLSLVertexBuilder*) override;
- void setupOval(GrGLSLVertexBuilder*) override;
- void adjustRRectVertices(GrGLSLVertexBuilder*) override;
- void onSetupRRect(GrGLSLVertexBuilder*) override;
-
- void onInitInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*) override;
- void setupInnerRect(GrGLSLVertexBuilder*) override;
- void setupInnerOval(GrGLSLVertexBuilder*) override;
- void onSetupInnerRRect(GrGLSLVertexBuilder*) override;
-
- void onEmitCode(GrGLSLVertexBuilder*, GrGLSLPPFragmentBuilder*, const char*,
- const char*) override;
-
- struct EmitShapeCoords {
- const GrGLSLVarying* fVarying;
- const char* fInverseMatrix;
- const char* fFragHalfSpan;
- };
-
- struct EmitShapeOpts {
- bool fIsTightGeometry;
- bool fResolveMixedSamples;
- bool fInvertCoverage;
- };
-
- void emitRect(GrGLSLPPFragmentBuilder*, const EmitShapeCoords&, const EmitShapeOpts&);
- void emitArc(GrGLSLPPFragmentBuilder*, const EmitShapeCoords&, bool coordsMayBeNegative,
- bool clampCoords, const EmitShapeOpts&);
- void emitSimpleRRect(GrGLSLPPFragmentBuilder*, const EmitShapeCoords&, const char* rrect,
- const EmitShapeOpts&);
- void interpolateAtSample(GrGLSLPPFragmentBuilder*, const GrGLSLVarying&, const char* sampleIdx,
- const char* interpolationMatrix);
- void acceptOrRejectWholeFragment(GrGLSLPPFragmentBuilder*, bool inside, const EmitShapeOpts&);
- void acceptCoverageMask(GrGLSLPPFragmentBuilder*, const char* shapeMask, const EmitShapeOpts&,
- bool maybeSharedEdge = true);
-
- int fEffectiveSampleCnt;
- bool fRectTrianglesMaySplit;
- GrGLSLVertToFrag fShapeCoords;
- GrGLSLVertToFrag fShapeInverseMatrix;
- GrGLSLVertToFrag fFragShapeHalfSpan;
- GrGLSLVertToFrag fArcTest;
- GrGLSLVertToFrag fArcInverseMatrix;
- GrGLSLVertToFrag fFragArcHalfSpan;
- GrGLSLVertToFrag fEarlyAccept;
- GrGLSLVertToFrag fInnerShapeInverseMatrix;
- GrGLSLVertToFrag fFragInnerShapeHalfSpan;
- SkString fSquareFun;
-
- typedef Backend INHERITED;
-};
-
-void GLSLInstanceProcessor::BackendMultisample::onInit(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- if (!this->isMixedSampled()) {
- if (kRect_ShapeFlag != fBatchInfo.fShapeTypes) {
- varyingHandler->addFlatVarying("triangleIsArc", &fTriangleIsArc,
- kHigh_GrSLPrecision);
- varyingHandler->addVarying("arcCoords", &fArcCoords, kHigh_GrSLPrecision);
- if (!fBatchInfo.fHasPerspective) {
- varyingHandler->addFlatVarying("arcInverseMatrix", &fArcInverseMatrix,
- kHigh_GrSLPrecision);
- varyingHandler->addFlatVarying("fragArcHalfSpan", &fFragArcHalfSpan,
- kHigh_GrSLPrecision);
- }
- } else if (!fBatchInfo.fInnerShapeTypes) {
- return;
- }
- } else {
- varyingHandler->addVarying("shapeCoords", &fShapeCoords, kHigh_GrSLPrecision);
- if (!fBatchInfo.fHasPerspective) {
- varyingHandler->addFlatVarying("shapeInverseMatrix", &fShapeInverseMatrix,
- kHigh_GrSLPrecision);
- varyingHandler->addFlatVarying("fragShapeHalfSpan", &fFragShapeHalfSpan,
- kHigh_GrSLPrecision);
- }
- if (fBatchInfo.fShapeTypes & kRRect_ShapesMask) {
- varyingHandler->addVarying("arcCoords", &fArcCoords, kHigh_GrSLPrecision);
- varyingHandler->addVarying("arcTest", &fArcTest, kHigh_GrSLPrecision);
- if (!fBatchInfo.fHasPerspective) {
- varyingHandler->addFlatVarying("arcInverseMatrix", &fArcInverseMatrix,
- kHigh_GrSLPrecision);
- varyingHandler->addFlatVarying("fragArcHalfSpan", &fFragArcHalfSpan,
- kHigh_GrSLPrecision);
- }
- } else if (fBatchInfo.fShapeTypes & kOval_ShapeFlag) {
- fArcCoords = fShapeCoords;
- fArcInverseMatrix = fShapeInverseMatrix;
- fFragArcHalfSpan = fFragShapeHalfSpan;
- if (fBatchInfo.fShapeTypes & kRect_ShapeFlag) {
- varyingHandler->addFlatVarying("triangleIsArc", &fTriangleIsArc,
- kHigh_GrSLPrecision);
- }
- }
- if (kRect_ShapeFlag != fBatchInfo.fShapeTypes) {
- v->definef("SAMPLE_MASK_ALL", "0x%x", (1 << fEffectiveSampleCnt) - 1);
- varyingHandler->addFlatVarying("earlyAccept", &fEarlyAccept, kHigh_GrSLPrecision);
- }
- }
- if (!fBatchInfo.fHasPerspective) {
- v->codeAppend("mat2 shapeInverseMatrix = inverse(mat2(shapeMatrix));");
- v->codeAppend("vec2 fragShapeSpan = abs(vec4(shapeInverseMatrix).xz) + "
- "abs(vec4(shapeInverseMatrix).yw);");
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::setupRect(GrGLSLVertexBuilder* v) {
- if (fShapeCoords.vsOut()) {
- v->codeAppendf("%s = %s;", fShapeCoords.vsOut(), this->outShapeCoords());
- }
- if (fShapeInverseMatrix.vsOut()) {
- v->codeAppendf("%s = shapeInverseMatrix;", fShapeInverseMatrix.vsOut());
- }
- if (fFragShapeHalfSpan.vsOut()) {
- v->codeAppendf("%s = 0.5 * fragShapeSpan;", fFragShapeHalfSpan.vsOut());
- }
- if (fArcTest.vsOut()) {
- // Pick a value that is not > 0.
- v->codeAppendf("%s = vec2(0);", fArcTest.vsOut());
- }
- if (fTriangleIsArc.vsOut()) {
- v->codeAppendf("%s = 0;", fTriangleIsArc.vsOut());
- }
- if (fEarlyAccept.vsOut()) {
- v->codeAppendf("%s = SAMPLE_MASK_ALL;", fEarlyAccept.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::setupOval(GrGLSLVertexBuilder* v) {
- v->codeAppendf("%s = abs(%s);", fArcCoords.vsOut(), this->outShapeCoords());
- if (fArcInverseMatrix.vsOut()) {
- v->codeAppendf("vec2 s = sign(%s);", this->outShapeCoords());
- v->codeAppendf("%s = shapeInverseMatrix * mat2(s.x, 0, 0 , s.y);",
- fArcInverseMatrix.vsOut());
- }
- if (fFragArcHalfSpan.vsOut()) {
- v->codeAppendf("%s = 0.5 * fragShapeSpan;", fFragArcHalfSpan.vsOut());
- }
- if (fArcTest.vsOut()) {
- // Pick a value that is > 0.
- v->codeAppendf("%s = vec2(1);", fArcTest.vsOut());
- }
- if (fTriangleIsArc.vsOut()) {
- if (!this->isMixedSampled()) {
- v->codeAppendf("%s = %s & 1;",
- fTriangleIsArc.vsOut(), fInputs.attr(Attrib::kVertexAttrs));
- } else {
- v->codeAppendf("%s = 1;", fTriangleIsArc.vsOut());
- }
- }
- if (fEarlyAccept.vsOut()) {
- v->codeAppendf("%s = ~%s & SAMPLE_MASK_ALL;",
- fEarlyAccept.vsOut(), fInputs.attr(Attrib::kVertexAttrs));
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::adjustRRectVertices(GrGLSLVertexBuilder* v) {
- if (!this->isMixedSampled()) {
- INHERITED::adjustRRectVertices(v);
- return;
- }
-
- if (!fBatchInfo.fHasPerspective) {
- // For the mixed samples algorithm it's best to bloat the corner triangles a bit so that
- // more of the pixels that cross into the arc region are completely inside the shared edges.
- // We also snap to a regular rect if the radii shrink smaller than a pixel.
- v->codeAppend ("vec2 midpt = 0.5 * (neighborRadii - radii);");
- v->codeAppend ("vec2 cornerSize = any(lessThan(radii, fragShapeSpan)) ? "
- "vec2(0) : min(radii + 0.5 * fragShapeSpan, 1.0 - midpt);");
- } else {
- // TODO: We could still bloat the corner triangle in the perspective case; we would just
- // need to find the screen-space derivative of shape coords at this particular point.
- v->codeAppend ("vec2 cornerSize = any(lessThan(radii, vec2(1e-3))) ? vec2(0) : radii;");
- }
-
- v->codeAppendf("if (abs(%s.x) == 0.5)"
- "%s.x = cornerSign.x * (1.0 - cornerSize.x);",
- fInputs.attr(Attrib::kShapeCoords), fModifiedShapeCoords);
- v->codeAppendf("if (abs(%s.y) == 0.5)"
- "%s.y = cornerSign.y * (1.0 - cornerSize.y);",
- fInputs.attr(Attrib::kShapeCoords), fModifiedShapeCoords);
-}
-
-void GLSLInstanceProcessor::BackendMultisample::onSetupRRect(GrGLSLVertexBuilder* v) {
- if (fShapeCoords.vsOut()) {
- v->codeAppendf("%s = %s;", fShapeCoords.vsOut(), this->outShapeCoords());
- }
- if (fShapeInverseMatrix.vsOut()) {
- v->codeAppendf("%s = shapeInverseMatrix;", fShapeInverseMatrix.vsOut());
- }
- if (fFragShapeHalfSpan.vsOut()) {
- v->codeAppendf("%s = 0.5 * fragShapeSpan;", fFragShapeHalfSpan.vsOut());
- }
- if (fArcInverseMatrix.vsOut()) {
- v->codeAppend ("vec2 s = cornerSign / radii;");
- v->codeAppendf("%s = shapeInverseMatrix * mat2(s.x, 0, 0, s.y);",
- fArcInverseMatrix.vsOut());
- }
- if (fFragArcHalfSpan.vsOut()) {
- v->codeAppendf("%s = 0.5 * (abs(vec4(%s).xz) + abs(vec4(%s).yw));",
- fFragArcHalfSpan.vsOut(), fArcInverseMatrix.vsOut(),
- fArcInverseMatrix.vsOut());
- }
- if (fArcTest.vsOut()) {
- // The interior triangles are laid out as a fan. fArcTest is both distances from shared
- // edges of a fan triangle to a point within that triangle. fArcTest is used to check if a
- // fragment is too close to either shared edge, in which case we point sample the shape as a
- // rect at that point in order to guarantee the mixed samples discard logic works correctly.
- v->codeAppendf("%s = (cornerSize == vec2(0)) ? vec2(0) : "
- "cornerSign * %s * mat2(1, cornerSize.x - 1.0, cornerSize.y - 1.0, 1);",
- fArcTest.vsOut(), fModifiedShapeCoords);
- if (!fBatchInfo.fHasPerspective) {
- // Shift the point at which distances to edges are measured from the center of the pixel
- // to the corner. This way the sign of fArcTest will quickly tell us whether a pixel
- // is completely inside the shared edge. Perspective mode will accomplish this same task
- // by finding the derivatives in the fragment shader.
- v->codeAppendf("%s -= 0.5 * (fragShapeSpan.yx * abs(radii - 1.0) + fragShapeSpan);",
- fArcTest.vsOut());
- }
- }
- if (fEarlyAccept.vsOut()) {
- SkASSERT(this->isMixedSampled());
- v->codeAppendf("%s = all(equal(vec2(1), abs(%s))) ? 0 : SAMPLE_MASK_ALL;",
- fEarlyAccept.vsOut(), fInputs.attr(Attrib::kShapeCoords));
- }
-}
-
-void
-GLSLInstanceProcessor::BackendMultisample::onInitInnerShape(GrGLSLVaryingHandler* varyingHandler,
- GrGLSLVertexBuilder* v) {
- varyingHandler->addVarying("innerShapeCoords", &fInnerShapeCoords, kHigh_GrSLPrecision);
- if (kOval_ShapeFlag != fBatchInfo.fInnerShapeTypes &&
- kRect_ShapeFlag != fBatchInfo.fInnerShapeTypes) {
- varyingHandler->addFlatVarying("innerRRect", &fInnerRRect, kHigh_GrSLPrecision);
- }
- if (!fBatchInfo.fHasPerspective) {
- varyingHandler->addFlatVarying("innerShapeInverseMatrix", &fInnerShapeInverseMatrix,
- kHigh_GrSLPrecision);
- v->codeAppendf("%s = shapeInverseMatrix * mat2(outer2Inner.x, 0, 0, outer2Inner.y);",
- fInnerShapeInverseMatrix.vsOut());
- varyingHandler->addFlatVarying("fragInnerShapeHalfSpan", &fFragInnerShapeHalfSpan,
- kHigh_GrSLPrecision);
- v->codeAppendf("%s = 0.5 * fragShapeSpan * outer2Inner.xy;",
- fFragInnerShapeHalfSpan.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::setupInnerRect(GrGLSLVertexBuilder* v) {
- if (fInnerRRect.vsOut()) {
- // The fragment shader will generalize every inner shape as a round rect. Since this one
- // is a rect, we simply emit bogus parameters for the round rect (negative radii) that
- // ensure the fragment shader always takes the "sample as rect" codepath.
- v->codeAppendf("%s = vec4(2.0 * (inner.zw - inner.xy) / (outer.zw - outer.xy), vec2(0));",
- fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::setupInnerOval(GrGLSLVertexBuilder* v) {
- if (fInnerRRect.vsOut()) {
- v->codeAppendf("%s = vec4(0, 0, 1, 1);", fInnerRRect.vsOut());
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::onSetupInnerRRect(GrGLSLVertexBuilder* v) {
- // Avoid numeric instability by not allowing the inner radii to get smaller than 1/10th pixel.
- if (fFragInnerShapeHalfSpan.vsOut()) {
- v->codeAppendf("innerRadii = max(innerRadii, 2e-1 * %s);", fFragInnerShapeHalfSpan.vsOut());
- } else {
- v->codeAppend ("innerRadii = max(innerRadii, vec2(1e-4));");
- }
- v->codeAppendf("%s = vec4(1.0 - innerRadii, 1.0 / innerRadii);", fInnerRRect.vsOut());
-}
-
-void GLSLInstanceProcessor::BackendMultisample::onEmitCode(GrGLSLVertexBuilder*,
- GrGLSLPPFragmentBuilder* f,
- const char*, const char*) {
- f->define("SAMPLE_COUNT", fEffectiveSampleCnt);
- if (this->isMixedSampled()) {
- f->definef("SAMPLE_MASK_ALL", "0x%x", (1 << fEffectiveSampleCnt) - 1);
- f->definef("SAMPLE_MASK_MSB", "0x%x", 1 << (fEffectiveSampleCnt - 1));
- }
-
- if (kRect_ShapeFlag != (fBatchInfo.fShapeTypes | fBatchInfo.fInnerShapeTypes)) {
- GrGLSLShaderVar x("x", kVec2f_GrSLType, GrGLSLShaderVar::kNonArray, kHigh_GrSLPrecision);
- f->emitFunction(kFloat_GrSLType, "square", 1, &x, "return dot(x, x);", &fSquareFun);
- }
-
- EmitShapeCoords shapeCoords;
- shapeCoords.fVarying = &fShapeCoords;
- shapeCoords.fInverseMatrix = fShapeInverseMatrix.fsIn();
- shapeCoords.fFragHalfSpan = fFragShapeHalfSpan.fsIn();
-
- EmitShapeCoords arcCoords;
- arcCoords.fVarying = &fArcCoords;
- arcCoords.fInverseMatrix = fArcInverseMatrix.fsIn();
- arcCoords.fFragHalfSpan = fFragArcHalfSpan.fsIn();
- bool clampArcCoords = this->isMixedSampled() && (fBatchInfo.fShapeTypes & kRRect_ShapesMask);
-
- EmitShapeOpts opts;
- opts.fIsTightGeometry = true;
- opts.fResolveMixedSamples = this->isMixedSampled();
- opts.fInvertCoverage = false;
-
- if (fBatchInfo.fHasPerspective && fBatchInfo.fInnerShapeTypes) {
- // This determines if the fragment should consider the inner shape in its sample mask.
- // We take the derivative early in case discards may occur before we get to the inner shape.
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf("vec2 fragInnerShapeApproxHalfSpan = 0.5 * fwidth(%s);",
- fInnerShapeCoords.fsIn());
- }
-
- if (!this->isMixedSampled()) {
- SkASSERT(!fArcTest.fsIn());
- if (fTriangleIsArc.fsIn()) {
- f->codeAppendf("if (%s != 0) {", fTriangleIsArc.fsIn());
- this->emitArc(f, arcCoords, false, clampArcCoords, opts);
-
- f->codeAppend ("}");
- }
- } else {
- const char* arcTest = fArcTest.fsIn();
- SkASSERT(arcTest);
- if (fBatchInfo.fHasPerspective) {
- // The non-perspective version accounts for fwith() in the vertex shader.
- // We make sure to take the derivative here, before a neighbor pixel may early accept.
- f->enableFeature(GrGLSLPPFragmentBuilder::kStandardDerivatives_GLSLFeature);
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf("vec2 arcTest = %s - 0.5 * fwidth(%s);",
- fArcTest.fsIn(), fArcTest.fsIn());
- arcTest = "arcTest";
- }
- const char* earlyAccept = fEarlyAccept.fsIn() ? fEarlyAccept.fsIn() : "SAMPLE_MASK_ALL";
- f->codeAppendf("if (gl_SampleMaskIn[0] == %s) {", earlyAccept);
- f->overrideSampleCoverage(earlyAccept);
- f->codeAppend ("} else {");
- if (arcTest) {
- // At this point, if the sample mask is all set it means we are inside an arc triangle.
- f->codeAppendf("if (gl_SampleMaskIn[0] == SAMPLE_MASK_ALL || "
- "all(greaterThan(%s, vec2(0)))) {", arcTest);
- this->emitArc(f, arcCoords, false, clampArcCoords, opts);
- f->codeAppend ("} else {");
- this->emitRect(f, shapeCoords, opts);
- f->codeAppend ("}");
- } else if (fTriangleIsArc.fsIn()) {
- f->codeAppendf("if (%s == 0) {", fTriangleIsArc.fsIn());
- this->emitRect(f, shapeCoords, opts);
- f->codeAppend ("} else {");
- this->emitArc(f, arcCoords, false, clampArcCoords, opts);
- f->codeAppend ("}");
- } else if (fBatchInfo.fShapeTypes == kOval_ShapeFlag) {
- this->emitArc(f, arcCoords, false, clampArcCoords, opts);
- } else {
- SkASSERT(fBatchInfo.fShapeTypes == kRect_ShapeFlag);
- this->emitRect(f, shapeCoords, opts);
- }
- f->codeAppend ("}");
- }
-
- if (fBatchInfo.fInnerShapeTypes) {
- f->codeAppendf("// Inner shape.\n");
-
- EmitShapeCoords innerShapeCoords;
- innerShapeCoords.fVarying = &fInnerShapeCoords;
- if (!fBatchInfo.fHasPerspective) {
- innerShapeCoords.fInverseMatrix = fInnerShapeInverseMatrix.fsIn();
- innerShapeCoords.fFragHalfSpan = fFragInnerShapeHalfSpan.fsIn();
- }
-
- EmitShapeOpts innerOpts;
- innerOpts.fIsTightGeometry = false;
- innerOpts.fResolveMixedSamples = false; // Mixed samples are resolved in the outer shape.
- innerOpts.fInvertCoverage = true;
-
- if (kOval_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- this->emitArc(f, innerShapeCoords, true, false, innerOpts);
- } else {
- f->codeAppendf("if (all(lessThan(abs(%s), 1.0 + %s))) {", fInnerShapeCoords.fsIn(),
- !fBatchInfo.fHasPerspective ? innerShapeCoords.fFragHalfSpan
- : "fragInnerShapeApproxHalfSpan"); // Above.
- if (kRect_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
- this->emitRect(f, innerShapeCoords, innerOpts);
- } else {
- this->emitSimpleRRect(f, innerShapeCoords, fInnerRRect.fsIn(), innerOpts);
- }
- f->codeAppend ("}");
- }
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::emitRect(GrGLSLPPFragmentBuilder* f,
- const EmitShapeCoords& coords,
- const EmitShapeOpts& opts) {
- // Full MSAA doesn't need to do anything to draw a rect.
- SkASSERT(!opts.fIsTightGeometry || opts.fResolveMixedSamples);
- if (coords.fFragHalfSpan) {
- f->codeAppendf("if (all(lessThanEqual(abs(%s), 1.0 - %s))) {",
- coords.fVarying->fsIn(), coords.fFragHalfSpan);
- // The entire pixel is inside the rect.
- this->acceptOrRejectWholeFragment(f, true, opts);
- f->codeAppend ("} else ");
- if (opts.fIsTightGeometry && !fRectTrianglesMaySplit) {
- f->codeAppendf("if (any(lessThan(abs(%s), 1.0 - %s))) {",
- coords.fVarying->fsIn(), coords.fFragHalfSpan);
- // The pixel falls on an edge of the rectangle and is known to not be on a shared edge.
- this->acceptCoverageMask(f, "gl_SampleMaskIn[0]", opts, false);
- f->codeAppend ("} else");
- }
- f->codeAppend ("{");
- }
- f->codeAppend ("int rectMask = 0;");
- f->codeAppend ("for (int i = 0; i < SAMPLE_COUNT; i++) {");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppend ( "vec2 pt = ");
- this->interpolateAtSample(f, *coords.fVarying, "i", coords.fInverseMatrix);
- f->codeAppend ( ";");
- f->codeAppend ( "if (all(lessThan(abs(pt), vec2(1)))) rectMask |= (1 << i);");
- f->codeAppend ("}");
- this->acceptCoverageMask(f, "rectMask", opts);
- if (coords.fFragHalfSpan) {
- f->codeAppend ("}");
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::emitArc(GrGLSLPPFragmentBuilder* f,
- const EmitShapeCoords& coords,
- bool coordsMayBeNegative, bool clampCoords,
- const EmitShapeOpts& opts) {
- if (coords.fFragHalfSpan) {
- SkString absArcCoords;
- absArcCoords.printf(coordsMayBeNegative ? "abs(%s)" : "%s", coords.fVarying->fsIn());
- if (clampCoords) {
- f->codeAppendf("if (%s(max(%s + %s, vec2(0))) < 1.0) {",
- fSquareFun.c_str(), absArcCoords.c_str(), coords.fFragHalfSpan);
- } else {
- f->codeAppendf("if (%s(%s + %s) < 1.0) {",
- fSquareFun.c_str(), absArcCoords.c_str(), coords.fFragHalfSpan);
- }
- // The entire pixel is inside the arc.
- this->acceptOrRejectWholeFragment(f, true, opts);
- f->codeAppendf("} else if (%s(max(%s - %s, vec2(0))) >= 1.0) {",
- fSquareFun.c_str(), absArcCoords.c_str(), coords.fFragHalfSpan);
- // The entire pixel is outside the arc.
- this->acceptOrRejectWholeFragment(f, false, opts);
- f->codeAppend ("} else {");
- }
- f->codeAppend ( "int arcMask = 0;");
- f->codeAppend ( "for (int i = 0; i < SAMPLE_COUNT; i++) {");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppend ( "vec2 pt = ");
- this->interpolateAtSample(f, *coords.fVarying, "i", coords.fInverseMatrix);
- f->codeAppend ( ";");
- if (clampCoords) {
- SkASSERT(!coordsMayBeNegative);
- f->codeAppend ( "pt = max(pt, vec2(0));");
- }
- f->codeAppendf( "if (%s(pt) < 1.0) arcMask |= (1 << i);", fSquareFun.c_str());
- f->codeAppend ( "}");
- this->acceptCoverageMask(f, "arcMask", opts);
- if (coords.fFragHalfSpan) {
- f->codeAppend ("}");
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::emitSimpleRRect(GrGLSLPPFragmentBuilder* f,
- const EmitShapeCoords& coords,
- const char* rrect,
- const EmitShapeOpts& opts) {
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf("vec2 distanceToArcEdge = abs(%s) - %s.xy;", coords.fVarying->fsIn(), rrect);
- f->codeAppend ("if (any(lessThan(distanceToArcEdge, vec2(0)))) {");
- this->emitRect(f, coords, opts);
- f->codeAppend ("} else {");
- if (coords.fInverseMatrix && coords.fFragHalfSpan) {
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf("vec2 rrectCoords = distanceToArcEdge * %s.zw;", rrect);
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf("vec2 fragRRectHalfSpan = %s * %s.zw;", coords.fFragHalfSpan, rrect);
- f->codeAppendf("if (%s(rrectCoords + fragRRectHalfSpan) <= 1.0) {", fSquareFun.c_str());
- // The entire pixel is inside the round rect.
- this->acceptOrRejectWholeFragment(f, true, opts);
- f->codeAppendf("} else if (%s(max(rrectCoords - fragRRectHalfSpan, vec2(0))) >= 1.0) {",
- fSquareFun.c_str());
- // The entire pixel is outside the round rect.
- this->acceptOrRejectWholeFragment(f, false, opts);
- f->codeAppend ("} else {");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf( "vec2 s = %s.zw * sign(%s);", rrect, coords.fVarying->fsIn());
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf( "mat2 innerRRectInverseMatrix = %s * mat2(s.x, 0, 0, s.y);",
- coords.fInverseMatrix);
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppend ( "int rrectMask = 0;");
- f->codeAppend ( "for (int i = 0; i < SAMPLE_COUNT; i++) {");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppend ( "vec2 pt = rrectCoords + ");
- f->appendOffsetToSample("i", GrGLSLFPFragmentBuilder::kSkiaDevice_Coordinates);
- f->codeAppend ( "* innerRRectInverseMatrix;");
- f->codeAppendf( "if (%s(max(pt, vec2(0))) < 1.0) rrectMask |= (1 << i);",
- fSquareFun.c_str());
- f->codeAppend ( "}");
- this->acceptCoverageMask(f, "rrectMask", opts);
- f->codeAppend ("}");
- } else {
- f->codeAppend ("int rrectMask = 0;");
- f->codeAppend ("for (int i = 0; i < SAMPLE_COUNT; i++) {");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppend ( "vec2 shapePt = ");
- this->interpolateAtSample(f, *coords.fVarying, "i", nullptr);
- f->codeAppend ( ";");
- f->appendPrecisionModifier(kHigh_GrSLPrecision);
- f->codeAppendf( "vec2 rrectPt = max(abs(shapePt) - %s.xy, vec2(0)) * %s.zw;",
- rrect, rrect);
- f->codeAppendf( "if (%s(rrectPt) < 1.0) rrectMask |= (1 << i);", fSquareFun.c_str());
- f->codeAppend ("}");
- this->acceptCoverageMask(f, "rrectMask", opts);
- }
- f->codeAppend ("}");
-}
-
-void GLSLInstanceProcessor::BackendMultisample::interpolateAtSample(GrGLSLPPFragmentBuilder* f,
- const GrGLSLVarying& varying,
- const char* sampleIdx,
- const char* interpolationMatrix) {
- if (interpolationMatrix) {
- f->codeAppendf("(%s + ", varying.fsIn());
- f->appendOffsetToSample(sampleIdx, GrGLSLFPFragmentBuilder::kSkiaDevice_Coordinates);
- f->codeAppendf(" * %s)", interpolationMatrix);
- } else {
- SkAssertResult(
- f->enableFeature(GrGLSLFragmentBuilder::kMultisampleInterpolation_GLSLFeature));
- f->codeAppendf("interpolateAtOffset(%s, ", varying.fsIn());
- f->appendOffsetToSample(sampleIdx, GrGLSLFPFragmentBuilder::kGLSLWindow_Coordinates);
- f->codeAppend(")");
- }
-}
-
-void
-GLSLInstanceProcessor::BackendMultisample::acceptOrRejectWholeFragment(GrGLSLPPFragmentBuilder* f,
- bool inside,
- const EmitShapeOpts& opts) {
- if (inside != opts.fInvertCoverage) { // Accept the entire fragment.
- if (opts.fResolveMixedSamples) {
- // This is a mixed sampled fragment in the interior of the shape. Reassign 100% coverage
- // to one fragment, and drop all other fragments that may fall on this same pixel. Since
- // our geometry is water tight and non-overlapping, we can take advantage of the
- // properties that (1) the incoming sample masks will be disjoint across fragments that
- // fall on a common pixel, and (2) since the entire fragment is inside the shape, each
- // sample's corresponding bit will be set in the incoming sample mask of exactly one
- // fragment.
- f->codeAppend("if ((gl_SampleMaskIn[0] & SAMPLE_MASK_MSB) == 0) {");
- // Drop this fragment.
- if (!fBatchInfo.fCannotDiscard) {
- f->codeAppend("discard;");
- } else {
- f->overrideSampleCoverage("0");
- }
- f->codeAppend("} else {");
- // Override the lone surviving fragment to full coverage.
- f->overrideSampleCoverage("-1");
- f->codeAppend("}");
- }
- } else { // Reject the entire fragment.
- if (!fBatchInfo.fCannotDiscard) {
- f->codeAppend("discard;");
- } else if (opts.fResolveMixedSamples) {
- f->overrideSampleCoverage("0");
- } else {
- f->maskSampleCoverage("0");
- }
- }
-}
-
-void GLSLInstanceProcessor::BackendMultisample::acceptCoverageMask(GrGLSLPPFragmentBuilder* f,
- const char* shapeMask,
- const EmitShapeOpts& opts,
- bool maybeSharedEdge) {
- if (opts.fResolveMixedSamples) {
- if (maybeSharedEdge) {
- // This is a mixed sampled fragment, potentially on the outer edge of the shape, with
- // only partial shape coverage. Override the coverage of one fragment to "shapeMask",
- // and drop all other fragments that may fall on this same pixel. Since our geometry is
- // water tight, non-overlapping, and completely contains the shape, this means that each
- // "on" bit from shapeMask is guaranteed to be set in the incoming sample mask of one,
- // and only one, fragment that falls on this same pixel.
- SkASSERT(!opts.fInvertCoverage);
- f->codeAppendf("if ((gl_SampleMaskIn[0] & (1 << findMSB(%s))) == 0) {", shapeMask);
- // Drop this fragment.
- if (!fBatchInfo.fCannotDiscard) {
- f->codeAppend ("discard;");
- } else {
- f->overrideSampleCoverage("0");
- }
- f->codeAppend ("} else {");
- // Override the coverage of the lone surviving fragment to "shapeMask".
- f->overrideSampleCoverage(shapeMask);
- f->codeAppend ("}");
- } else {
- f->overrideSampleCoverage(shapeMask);
- }
- } else {
- f->maskSampleCoverage(shapeMask, opts.fInvertCoverage);
- }
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-GLSLInstanceProcessor::Backend*
-GLSLInstanceProcessor::Backend::Create(const GrGLSLProgramBuilder* p, BatchInfo batchInfo,
- const VertexInputs& inputs) {
- switch (batchInfo.fAntialiasMode) {
- default:
- SkFAIL("Unexpected antialias mode.");
- case AntialiasMode::kNone:
- return new BackendNonAA(batchInfo, inputs);
- case AntialiasMode::kCoverage:
- return new BackendCoverage(batchInfo, inputs);
- case AntialiasMode::kMSAA:
- case AntialiasMode::kMixedSamples: {
- const GrPipeline& pipeline = p->pipeline();
- const GrRenderTargetPriv& rtp = pipeline.getRenderTarget()->renderTargetPriv();
- const GrGpu::MultisampleSpecs& specs = rtp.getMultisampleSpecs(pipeline.getStencil());
- return new BackendMultisample(batchInfo, inputs, specs.fEffectiveSampleCnt);
- }
- }
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-const ShapeVertex kVertexData[] = {
- // Rectangle.
- {+1, +1, ~0}, /*0*/
- {-1, +1, ~0}, /*1*/
- {-1, -1, ~0}, /*2*/
- {+1, -1, ~0}, /*3*/
- // The next 4 are for the bordered version.
- {+1, +1, 0}, /*4*/
- {-1, +1, 0}, /*5*/
- {-1, -1, 0}, /*6*/
- {+1, -1, 0}, /*7*/
-
- // Octagon that inscribes the unit circle, cut by an interior unit octagon.
- {+1.000000f, 0.000000f, 0}, /* 8*/
- {+1.000000f, +0.414214f, ~0}, /* 9*/
- {+0.707106f, +0.707106f, 0}, /*10*/
- {+0.414214f, +1.000000f, ~0}, /*11*/
- { 0.000000f, +1.000000f, 0}, /*12*/
- {-0.414214f, +1.000000f, ~0}, /*13*/
- {-0.707106f, +0.707106f, 0}, /*14*/
- {-1.000000f, +0.414214f, ~0}, /*15*/
- {-1.000000f, 0.000000f, 0}, /*16*/
- {-1.000000f, -0.414214f, ~0}, /*17*/
- {-0.707106f, -0.707106f, 0}, /*18*/
- {-0.414214f, -1.000000f, ~0}, /*19*/
- { 0.000000f, -1.000000f, 0}, /*20*/
- {+0.414214f, -1.000000f, ~0}, /*21*/
- {+0.707106f, -0.707106f, 0}, /*22*/
- {+1.000000f, -0.414214f, ~0}, /*23*/
- // This vertex is for the fanned versions.
- { 0.000000f, 0.000000f, ~0}, /*24*/
-
- // Rectangle with disjoint corner segments.
- {+1.0, +0.5, 0x3}, /*25*/
- {+1.0, +1.0, 0x3}, /*26*/
- {+0.5, +1.0, 0x3}, /*27*/
- {-0.5, +1.0, 0x2}, /*28*/
- {-1.0, +1.0, 0x2}, /*29*/
- {-1.0, +0.5, 0x2}, /*30*/
- {-1.0, -0.5, 0x0}, /*31*/
- {-1.0, -1.0, 0x0}, /*32*/
- {-0.5, -1.0, 0x0}, /*33*/
- {+0.5, -1.0, 0x1}, /*34*/
- {+1.0, -1.0, 0x1}, /*35*/
- {+1.0, -0.5, 0x1}, /*36*/
- // The next 4 are for the fanned version.
- { 0.0, 0.0, 0x3}, /*37*/
- { 0.0, 0.0, 0x2}, /*38*/
- { 0.0, 0.0, 0x0}, /*39*/
- { 0.0, 0.0, 0x1}, /*40*/
- // The next 8 are for the bordered version.
- {+0.75, +0.50, 0x3}, /*41*/
- {+0.50, +0.75, 0x3}, /*42*/
- {-0.50, +0.75, 0x2}, /*43*/
- {-0.75, +0.50, 0x2}, /*44*/
- {-0.75, -0.50, 0x0}, /*45*/
- {-0.50, -0.75, 0x0}, /*46*/
- {+0.50, -0.75, 0x1}, /*47*/
- {+0.75, -0.50, 0x1}, /*48*/
-
- // 16-gon that inscribes the unit circle, cut by an interior unit 16-gon.
- {+1.000000f, +0.000000f, 0}, /*49*/
- {+1.000000f, +0.198913f, ~0}, /*50*/
- {+0.923879f, +0.382683f, 0}, /*51*/
- {+0.847760f, +0.566455f, ~0}, /*52*/
- {+0.707106f, +0.707106f, 0}, /*53*/
- {+0.566455f, +0.847760f, ~0}, /*54*/
- {+0.382683f, +0.923879f, 0}, /*55*/
- {+0.198913f, +1.000000f, ~0}, /*56*/
- {+0.000000f, +1.000000f, 0}, /*57*/
- {-0.198913f, +1.000000f, ~0}, /*58*/
- {-0.382683f, +0.923879f, 0}, /*59*/
- {-0.566455f, +0.847760f, ~0}, /*60*/
- {-0.707106f, +0.707106f, 0}, /*61*/
- {-0.847760f, +0.566455f, ~0}, /*62*/
- {-0.923879f, +0.382683f, 0}, /*63*/
- {-1.000000f, +0.198913f, ~0}, /*64*/
- {-1.000000f, +0.000000f, 0}, /*65*/
- {-1.000000f, -0.198913f, ~0}, /*66*/
- {-0.923879f, -0.382683f, 0}, /*67*/
- {-0.847760f, -0.566455f, ~0}, /*68*/
- {-0.707106f, -0.707106f, 0}, /*69*/
- {-0.566455f, -0.847760f, ~0}, /*70*/
- {-0.382683f, -0.923879f, 0}, /*71*/
- {-0.198913f, -1.000000f, ~0}, /*72*/
- {-0.000000f, -1.000000f, 0}, /*73*/
- {+0.198913f, -1.000000f, ~0}, /*74*/
- {+0.382683f, -0.923879f, 0}, /*75*/
- {+0.566455f, -0.847760f, ~0}, /*76*/
- {+0.707106f, -0.707106f, 0}, /*77*/
- {+0.847760f, -0.566455f, ~0}, /*78*/
- {+0.923879f, -0.382683f, 0}, /*79*/
- {+1.000000f, -0.198913f, ~0}, /*80*/
-};
-
-const uint8_t kIndexData[] = {
- // Rectangle.
- 0, 1, 2,
- 0, 2, 3,
-
- // Rectangle with a border.
- 0, 1, 5,
- 5, 4, 0,
- 1, 2, 6,
- 6, 5, 1,
- 2, 3, 7,
- 7, 6, 2,
- 3, 0, 4,
- 4, 7, 3,
- 4, 5, 6,
- 6, 7, 4,
-
- // Octagon that inscribes the unit circle, cut by an interior unit octagon.
- 10, 8, 9,
- 12, 10, 11,
- 14, 12, 13,
- 16, 14, 15,
- 18, 16, 17,
- 20, 18, 19,
- 22, 20, 21,
- 8, 22, 23,
- 8, 10, 12,
- 12, 14, 16,
- 16, 18, 20,
- 20, 22, 8,
- 8, 12, 16,
- 16, 20, 8,
-
- // Same octagons, but with the interior arranged as a fan. Used by mixed samples.
- 10, 8, 9,
- 12, 10, 11,
- 14, 12, 13,
- 16, 14, 15,
- 18, 16, 17,
- 20, 18, 19,
- 22, 20, 21,
- 8, 22, 23,
- 24, 8, 10,
- 12, 24, 10,
- 24, 12, 14,
- 16, 24, 14,
- 24, 16, 18,
- 20, 24, 18,
- 24, 20, 22,
- 8, 24, 22,
-
- // Same octagons, but with the inner and outer disjoint. Used by coverage AA.
- 8, 22, 23,
- 9, 8, 23,
- 10, 8, 9,
- 11, 10, 9,
- 12, 10, 11,
- 13, 12, 11,
- 14, 12, 13,
- 15, 14, 13,
- 16, 14, 15,
- 17, 16, 15,
- 18, 16, 17,
- 19, 18, 17,
- 20, 18, 19,
- 21, 20, 19,
- 22, 20, 21,
- 23, 22, 21,
- 22, 8, 10,
- 10, 12, 14,
- 14, 16, 18,
- 18, 20, 22,
- 22, 10, 14,
- 14, 18, 22,
-
- // Rectangle with disjoint corner segments.
- 27, 25, 26,
- 30, 28, 29,
- 33, 31, 32,
- 36, 34, 35,
- 25, 27, 28,
- 28, 30, 31,
- 31, 33, 34,
- 34, 36, 25,
- 25, 28, 31,
- 31, 34, 25,
-
- // Same rectangle with disjoint corners, but with the interior arranged as a fan. Used by
- // mixed samples.
- 27, 25, 26,
- 30, 28, 29,
- 33, 31, 32,
- 36, 34, 35,
- 27, 37, 25,
- 28, 37, 27,
- 30, 38, 28,
- 31, 38, 30,
- 33, 39, 31,
- 34, 39, 33,
- 36, 40, 34,
- 25, 40, 36,
-
- // Same rectangle with disjoint corners, with a border as well. Used by coverage AA.
- 41, 25, 26,
- 42, 41, 26,
- 27, 42, 26,
- 43, 28, 29,
- 44, 43, 29,
- 30, 44, 29,
- 45, 31, 32,
- 46, 45, 32,
- 33, 46, 32,
- 47, 34, 35,
- 48, 47, 35,
- 36, 48, 35,
- 27, 28, 42,
- 42, 28, 43,
- 30, 31, 44,
- 44, 31, 45,
- 33, 34, 46,
- 46, 34, 47,
- 36, 25, 48,
- 48, 25, 41,
- 41, 42, 43,
- 43, 44, 45,
- 45, 46, 47,
- 47, 48, 41,
- 41, 43, 45,
- 45, 47, 41,
-
- // Same as the disjoint octagons, but with 16-gons instead. Used by coverage AA when the oval is
- // sufficiently large.
- 49, 79, 80,
- 50, 49, 80,
- 51, 49, 50,
- 52, 51, 50,
- 53, 51, 52,
- 54, 53, 52,
- 55, 53, 54,
- 56, 55, 54,
- 57, 55, 56,
- 58, 57, 56,
- 59, 57, 58,
- 60, 59, 58,
- 61, 59, 60,
- 62, 61, 60,
- 63, 61, 62,
- 64, 63, 62,
- 65, 63, 64,
- 66, 65, 64,
- 67, 65, 66,
- 68, 67, 66,
- 69, 67, 68,
- 70, 69, 68,
- 71, 69, 70,
- 72, 71, 70,
- 73, 71, 72,
- 74, 73, 72,
- 75, 73, 74,
- 76, 75, 74,
- 77, 75, 76,
- 78, 77, 76,
- 79, 77, 78,
- 80, 79, 78,
- 49, 51, 53,
- 53, 55, 57,
- 57, 59, 61,
- 61, 63, 65,
- 65, 67, 69,
- 69, 71, 73,
- 73, 75, 77,
- 77, 79, 49,
- 49, 53, 57,
- 57, 61, 65,
- 65, 69, 73,
- 73, 77, 49,
- 49, 57, 65,
- 65, 73, 49,
-};
-
-enum {
- kRect_FirstIndex = 0,
- kRect_TriCount = 2,
-
- kFramedRect_FirstIndex = 6,
- kFramedRect_TriCount = 10,
-
- kOctagons_FirstIndex = 36,
- kOctagons_TriCount = 14,
-
- kOctagonsFanned_FirstIndex = 78,
- kOctagonsFanned_TriCount = 16,
-
- kDisjointOctagons_FirstIndex = 126,
- kDisjointOctagons_TriCount = 22,
-
- kCorneredRect_FirstIndex = 192,
- kCorneredRect_TriCount = 10,
-
- kCorneredRectFanned_FirstIndex = 222,
- kCorneredRectFanned_TriCount = 12,
-
- kCorneredFramedRect_FirstIndex = 258,
- kCorneredFramedRect_TriCount = 26,
-
- kDisjoint16Gons_FirstIndex = 336,
- kDisjoint16Gons_TriCount = 46,
-};
-
-static const GrUniqueKey::Domain kShapeBufferDomain = GrUniqueKey::GenerateDomain();
-
-template<GrBufferType Type> static const GrUniqueKey& get_shape_buffer_key() {
- static GrUniqueKey* kKey;
- if (!kKey) {
- kKey = new GrUniqueKey;
- GrUniqueKey::Builder builder(kKey, kShapeBufferDomain, 1);
- builder[0] = Type;
- }
- return *kKey;
-}
-
-const GrBuffer* InstanceProcessor::FindOrCreateVertexBuffer(GrGpu* gpu) {
- GrResourceCache* cache = gpu->getContext()->getResourceCache();
- const GrUniqueKey& key = get_shape_buffer_key<kVertex_GrBufferType>();
- if (GrGpuResource* cached = cache->findAndRefUniqueResource(key)) {
- return static_cast<GrBuffer*>(cached);
- }
- if (GrBuffer* buffer = gpu->createBuffer(sizeof(kVertexData), kVertex_GrBufferType,
- kStatic_GrAccessPattern, kVertexData)) {
- buffer->resourcePriv().setUniqueKey(key);
- return buffer;
- }
- return nullptr;
-}
-
-const GrBuffer* InstanceProcessor::FindOrCreateIndex8Buffer(GrGpu* gpu) {
- GrResourceCache* cache = gpu->getContext()->getResourceCache();
- const GrUniqueKey& key = get_shape_buffer_key<kIndex_GrBufferType>();
- if (GrGpuResource* cached = cache->findAndRefUniqueResource(key)) {
- return static_cast<GrBuffer*>(cached);
- }
- if (GrBuffer* buffer = gpu->createBuffer(sizeof(kIndexData), kIndex_GrBufferType,
- kStatic_GrAccessPattern, kIndexData)) {
- buffer->resourcePriv().setUniqueKey(key);
- return buffer;
- }
- return nullptr;
-}
-
-IndexRange InstanceProcessor::GetIndexRangeForRect(AntialiasMode aa) {
- static constexpr IndexRange kRectRanges[kNumAntialiasModes] = {
- {kRect_FirstIndex, 3 * kRect_TriCount}, // kNone
- {kFramedRect_FirstIndex, 3 * kFramedRect_TriCount}, // kCoverage
- {kRect_FirstIndex, 3 * kRect_TriCount}, // kMSAA
- {kRect_FirstIndex, 3 * kRect_TriCount} // kMixedSamples
- };
-
- SkASSERT(aa >= AntialiasMode::kNone && aa <= AntialiasMode::kMixedSamples);
- return kRectRanges[(int)aa];
-
- GR_STATIC_ASSERT(0 == (int)AntialiasMode::kNone);
- GR_STATIC_ASSERT(1 == (int)AntialiasMode::kCoverage);
- GR_STATIC_ASSERT(2 == (int)AntialiasMode::kMSAA);
- GR_STATIC_ASSERT(3 == (int)AntialiasMode::kMixedSamples);
-}
-
-IndexRange InstanceProcessor::GetIndexRangeForOval(AntialiasMode aa, const SkRect& devBounds) {
- if (AntialiasMode::kCoverage == aa && devBounds.height() * devBounds.width() >= 256 * 256) {
- // This threshold was chosen quasi-scientifically on Tegra X1.
- return {kDisjoint16Gons_FirstIndex, 3 * kDisjoint16Gons_TriCount};
- }
-
- static constexpr IndexRange kOvalRanges[kNumAntialiasModes] = {
- {kOctagons_FirstIndex, 3 * kOctagons_TriCount}, // kNone
- {kDisjointOctagons_FirstIndex, 3 * kDisjointOctagons_TriCount}, // kCoverage
- {kOctagons_FirstIndex, 3 * kOctagons_TriCount}, // kMSAA
- {kOctagonsFanned_FirstIndex, 3 * kOctagonsFanned_TriCount} // kMixedSamples
- };
-
- SkASSERT(aa >= AntialiasMode::kNone && aa <= AntialiasMode::kMixedSamples);
- return kOvalRanges[(int)aa];
-
- GR_STATIC_ASSERT(0 == (int)AntialiasMode::kNone);
- GR_STATIC_ASSERT(1 == (int)AntialiasMode::kCoverage);
- GR_STATIC_ASSERT(2 == (int)AntialiasMode::kMSAA);
- GR_STATIC_ASSERT(3 == (int)AntialiasMode::kMixedSamples);
-}
-
-IndexRange InstanceProcessor::GetIndexRangeForRRect(AntialiasMode aa) {
- static constexpr IndexRange kRRectRanges[kNumAntialiasModes] = {
- {kCorneredRect_FirstIndex, 3 * kCorneredRect_TriCount}, // kNone
- {kCorneredFramedRect_FirstIndex, 3 * kCorneredFramedRect_TriCount}, // kCoverage
- {kCorneredRect_FirstIndex, 3 * kCorneredRect_TriCount}, // kMSAA
- {kCorneredRectFanned_FirstIndex, 3 * kCorneredRectFanned_TriCount} // kMixedSamples
- };
-
- SkASSERT(aa >= AntialiasMode::kNone && aa <= AntialiasMode::kMixedSamples);
- return kRRectRanges[(int)aa];
-
- GR_STATIC_ASSERT(0 == (int)AntialiasMode::kNone);
- GR_STATIC_ASSERT(1 == (int)AntialiasMode::kCoverage);
- GR_STATIC_ASSERT(2 == (int)AntialiasMode::kMSAA);
- GR_STATIC_ASSERT(3 == (int)AntialiasMode::kMixedSamples);
-}
-
-const char* InstanceProcessor::GetNameOfIndexRange(IndexRange range) {
- switch (range.fStart) {
- case kRect_FirstIndex: return "basic_rect";
- case kFramedRect_FirstIndex: return "coverage_rect";
-
- case kOctagons_FirstIndex: return "basic_oval";
- case kDisjointOctagons_FirstIndex: return "coverage_oval";
- case kOctagonsFanned_FirstIndex: return "mixed_samples_oval";
-
- case kCorneredRect_FirstIndex: return "basic_round_rect";
- case kCorneredFramedRect_FirstIndex: return "coverage_round_rect";
- case kCorneredRectFanned_FirstIndex: return "mixed_samples_round_rect";
-
- default: return "unknown";
- }
-}
-
-}
diff --git a/src/gpu/instanced/InstanceProcessor.h b/src/gpu/instanced/InstanceProcessor.h
deleted file mode 100644
index b0edde95b8..0000000000
--- a/src/gpu/instanced/InstanceProcessor.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef gr_instanced_InstanceProcessor_DEFINED
-#define gr_instanced_InstanceProcessor_DEFINED
-
-#include "GrBufferAccess.h"
-#include "GrGeometryProcessor.h"
-#include "instanced/InstancedRenderingTypes.h"
-
-namespace gr_instanced {
-
-/**
- * This class provides a GP implementation that uses instanced rendering. Is sends geometry in as
- * basic, pre-baked canonical shapes, and uses instanced vertex attribs to control how these shapes
- * are transformed and drawn. MSAA is accomplished with the sample mask rather than finely
- * tesselated geometry.
- */
-class InstanceProcessor : public GrGeometryProcessor {
-public:
- static bool IsSupported(const GrGLSLCaps&, const GrCaps&, AntialiasMode* lastSupportedAAMode);
-
- InstanceProcessor(BatchInfo, GrBuffer* paramsBuffer);
-
- const char* name() const override { return "Instance Processor"; }
- BatchInfo batchInfo() const { return fBatchInfo; }
-
- void getGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder* b) const override {
- b->add32(fBatchInfo.fData);
- }
- GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override;
-
- /**
- * Returns a buffer of ShapeVertex that defines the canonical instanced geometry.
- */
- static const GrBuffer* SK_WARN_UNUSED_RESULT FindOrCreateVertexBuffer(GrGpu*);
-
- /**
- * Returns a buffer of 8-bit indices for the canonical instanced geometry. The client can call
- * GetIndexRangeForXXX to know which indices to use for a specific shape.
- */
- static const GrBuffer* SK_WARN_UNUSED_RESULT FindOrCreateIndex8Buffer(GrGpu*);
-
- static IndexRange GetIndexRangeForRect(AntialiasMode);
- static IndexRange GetIndexRangeForOval(AntialiasMode, const SkRect& devBounds);
- static IndexRange GetIndexRangeForRRect(AntialiasMode);
-
- static const char* GetNameOfIndexRange(IndexRange);
-
-private:
- const BatchInfo fBatchInfo;
- GrBufferAccess fParamsAccess;
-
- typedef GrGeometryProcessor INHERITED;
-};
-
-}
-
-#endif
diff --git a/src/gpu/instanced/InstancedRendering.cpp b/src/gpu/instanced/InstancedRendering.cpp
deleted file mode 100644
index 165bff494b..0000000000
--- a/src/gpu/instanced/InstancedRendering.cpp
+++ /dev/null
@@ -1,474 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "InstancedRendering.h"
-
-#include "GrBatchFlushState.h"
-#include "GrPipeline.h"
-#include "GrResourceProvider.h"
-#include "instanced/InstanceProcessor.h"
-
-namespace gr_instanced {
-
-InstancedRendering::InstancedRendering(GrGpu* gpu, AntialiasMode lastSupportedAAMode,
- bool canRenderToFloat)
- : fGpu(SkRef(gpu)),
- fLastSupportedAAMode(lastSupportedAAMode),
- fCanRenderToFloat(canRenderToFloat),
- fState(State::kRecordingDraws),
- fDrawPool(1024 * sizeof(Batch::Draw), 1024 * sizeof(Batch::Draw)) {
-}
-
-GrDrawBatch* InstancedRendering::recordRect(const SkRect& rect, const SkMatrix& viewMatrix,
- GrColor color, bool antialias,
- const GrInstancedPipelineInfo& info, bool* useHWAA) {
- return this->recordShape(ShapeType::kRect, rect, viewMatrix, color, rect, antialias, info,
- useHWAA);
-}
-
-GrDrawBatch* InstancedRendering::recordRect(const SkRect& rect, const SkMatrix& viewMatrix,
- GrColor color, const SkRect& localRect, bool antialias,
- const GrInstancedPipelineInfo& info, bool* useHWAA) {
- return this->recordShape(ShapeType::kRect, rect, viewMatrix, color, localRect, antialias, info,
- useHWAA);
-}
-
-GrDrawBatch* InstancedRendering::recordRect(const SkRect& rect, const SkMatrix& viewMatrix,
- GrColor color, const SkMatrix& localMatrix,
- bool antialias, const GrInstancedPipelineInfo& info,
- bool* useHWAA) {
- if (localMatrix.hasPerspective()) {
- return nullptr; // Perspective is not yet supported in the local matrix.
- }
- if (Batch* batch = this->recordShape(ShapeType::kRect, rect, viewMatrix, color, rect, antialias,
- info, useHWAA)) {
- batch->getSingleInstance().fInfo |= kLocalMatrix_InfoFlag;
- batch->appendParamsTexel(localMatrix.getScaleX(), localMatrix.getSkewX(),
- localMatrix.getTranslateX());
- batch->appendParamsTexel(localMatrix.getSkewY(), localMatrix.getScaleY(),
- localMatrix.getTranslateY());
- batch->fInfo.fHasLocalMatrix = true;
- return batch;
- }
- return nullptr;
-}
-
-GrDrawBatch* InstancedRendering::recordOval(const SkRect& oval, const SkMatrix& viewMatrix,
- GrColor color, bool antialias,
- const GrInstancedPipelineInfo& info, bool* useHWAA) {
- return this->recordShape(ShapeType::kOval, oval, viewMatrix, color, oval, antialias, info,
- useHWAA);
-}
-
-GrDrawBatch* InstancedRendering::recordRRect(const SkRRect& rrect, const SkMatrix& viewMatrix,
- GrColor color, bool antialias,
- const GrInstancedPipelineInfo& info, bool* useHWAA) {
- if (Batch* batch = this->recordShape(GetRRectShapeType(rrect), rrect.rect(), viewMatrix, color,
- rrect.rect(), antialias, info, useHWAA)) {
- batch->appendRRectParams(rrect);
- return batch;
- }
- return nullptr;
-}
-
-GrDrawBatch* InstancedRendering::recordDRRect(const SkRRect& outer, const SkRRect& inner,
- const SkMatrix& viewMatrix, GrColor color,
- bool antialias, const GrInstancedPipelineInfo& info,
- bool* useHWAA) {
- if (inner.getType() > SkRRect::kSimple_Type) {
- return nullptr; // Complex inner round rects are not yet supported.
- }
- if (SkRRect::kEmpty_Type == inner.getType()) {
- return this->recordRRect(outer, viewMatrix, color, antialias, info, useHWAA);
- }
- if (Batch* batch = this->recordShape(GetRRectShapeType(outer), outer.rect(), viewMatrix, color,
- outer.rect(), antialias, info, useHWAA)) {
- batch->appendRRectParams(outer);
- ShapeType innerShapeType = GetRRectShapeType(inner);
- batch->fInfo.fInnerShapeTypes |= GetShapeFlag(innerShapeType);
- batch->getSingleInstance().fInfo |= ((int)innerShapeType << kInnerShapeType_InfoBit);
- batch->appendParamsTexel(inner.rect().asScalars(), 4);
- batch->appendRRectParams(inner);
- return batch;
- }
- return nullptr;
-}
-
-InstancedRendering::Batch* InstancedRendering::recordShape(ShapeType type, const SkRect& bounds,
- const SkMatrix& viewMatrix,
- GrColor color, const SkRect& localRect,
- bool antialias,
- const GrInstancedPipelineInfo& info,
- bool* useHWAA) {
- SkASSERT(State::kRecordingDraws == fState);
-
- if (info.fIsRenderingToFloat && !fCanRenderToFloat) {
- return nullptr;
- }
-
- AntialiasMode antialiasMode;
- if (!this->selectAntialiasMode(viewMatrix, antialias, info, useHWAA, &antialiasMode)) {
- return nullptr;
- }
-
- Batch* batch = this->createBatch();
- batch->fInfo.fAntialiasMode = antialiasMode;
- batch->fInfo.fShapeTypes = GetShapeFlag(type);
- batch->fInfo.fCannotDiscard = !info.fCanDiscard;
-
- Instance& instance = batch->getSingleInstance();
- instance.fInfo = (int)type << kShapeType_InfoBit;
-
- // The instanced shape renderer draws rectangles of [-1, -1, +1, +1], so we find the matrix that
- // will map this rectangle to the same device coordinates as "viewMatrix * bounds".
- float sx = 0.5f * bounds.width();
- float sy = 0.5f * bounds.height();
- float tx = sx + bounds.fLeft;
- float ty = sy + bounds.fTop;
- if (!viewMatrix.hasPerspective()) {
- float* m = instance.fShapeMatrix2x3;
- m[0] = viewMatrix.getScaleX() * sx;
- m[1] = viewMatrix.getSkewX() * sy;
- m[2] = viewMatrix.getTranslateX() +
- viewMatrix.getScaleX() * tx + viewMatrix.getSkewX() * ty;
-
- m[3] = viewMatrix.getSkewY() * sx;
- m[4] = viewMatrix.getScaleY() * sy;
- m[5] = viewMatrix.getTranslateY() +
- viewMatrix.getSkewY() * tx + viewMatrix.getScaleY() * ty;
-
- // Since 'm' is a 2x3 matrix that maps the rect [-1, +1] into the shape's device-space quad,
- // it's quite simple to find the bounding rectangle:
- float devBoundsHalfWidth = fabsf(m[0]) + fabsf(m[1]);
- float devBoundsHalfHeight = fabsf(m[3]) + fabsf(m[4]);
- batch->fBounds.fLeft = m[2] - devBoundsHalfWidth;
- batch->fBounds.fRight = m[2] + devBoundsHalfWidth;
- batch->fBounds.fTop = m[5] - devBoundsHalfHeight;
- batch->fBounds.fBottom = m[5] + devBoundsHalfHeight;
-
- // TODO: Is this worth the CPU overhead?
- batch->fInfo.fNonSquare =
- fabsf(devBoundsHalfHeight - devBoundsHalfWidth) > 0.5f || // Early out.
- fabs(m[0] * m[3] + m[1] * m[4]) > 1e-3f || // Skew?
- fabs(m[0] * m[0] + m[1] * m[1] - m[3] * m[3] - m[4] * m[4]) > 1e-2f; // Diff. lengths?
- } else {
- SkMatrix shapeMatrix(viewMatrix);
- shapeMatrix.preTranslate(tx, ty);
- shapeMatrix.preScale(sx, sy);
- instance.fInfo |= kPerspective_InfoFlag;
-
- float* m = instance.fShapeMatrix2x3;
- m[0] = SkScalarToFloat(shapeMatrix.getScaleX());
- m[1] = SkScalarToFloat(shapeMatrix.getSkewX());
- m[2] = SkScalarToFloat(shapeMatrix.getTranslateX());
- m[3] = SkScalarToFloat(shapeMatrix.getSkewY());
- m[4] = SkScalarToFloat(shapeMatrix.getScaleY());
- m[5] = SkScalarToFloat(shapeMatrix.getTranslateY());
-
- // Send the perspective column as a param.
- batch->appendParamsTexel(shapeMatrix[SkMatrix::kMPersp0], shapeMatrix[SkMatrix::kMPersp1],
- shapeMatrix[SkMatrix::kMPersp2]);
- batch->fInfo.fHasPerspective = true;
-
- viewMatrix.mapRect(&batch->fBounds, bounds);
-
- batch->fInfo.fNonSquare = true;
- }
-
- instance.fColor = color;
-
- const float* rectAsFloats = localRect.asScalars(); // Ensure SkScalar == float.
- memcpy(&instance.fLocalRect, rectAsFloats, 4 * sizeof(float));
-
- return batch;
-}
-
-inline bool InstancedRendering::selectAntialiasMode(const SkMatrix& viewMatrix, bool antialias,
- const GrInstancedPipelineInfo& info,
- bool* useHWAA, AntialiasMode* antialiasMode) {
- SkASSERT(!info.fColorDisabled || info.fDrawingShapeToStencil);
- SkASSERT(!info.fIsMixedSampled || info.fIsMultisampled);
-
- if (!info.fIsMultisampled || fGpu->caps()->multisampleDisableSupport()) {
- SkASSERT(fLastSupportedAAMode >= AntialiasMode::kCoverage);
- if (!antialias) {
- if (info.fDrawingShapeToStencil && !info.fCanDiscard) {
- // We can't draw to the stencil buffer without discard (or sample mask if MSAA).
- return false;
- }
- *antialiasMode = AntialiasMode::kNone;
- *useHWAA = false;
- return true;
- }
-
- if (info.canUseCoverageAA() && viewMatrix.preservesRightAngles()) {
- *antialiasMode = AntialiasMode::kCoverage;
- *useHWAA = false;
- return true;
- }
- }
-
- if (info.fIsMultisampled && fLastSupportedAAMode >= AntialiasMode::kMSAA) {
- if (!info.fIsMixedSampled || info.fColorDisabled) {
- *antialiasMode = AntialiasMode::kMSAA;
- *useHWAA = true;
- return true;
- }
- if (fLastSupportedAAMode >= AntialiasMode::kMixedSamples) {
- *antialiasMode = AntialiasMode::kMixedSamples;
- *useHWAA = true;
- return true;
- }
- }
-
- return false;
-}
-
-InstancedRendering::Batch::Batch(uint32_t classID, InstancedRendering* ir)
- : INHERITED(classID),
- fInstancedRendering(ir),
- fIsTracked(false),
- fNumDraws(1),
- fNumChangesInGeometry(0) {
- fHeadDraw = fTailDraw = (Draw*)fInstancedRendering->fDrawPool.allocate(sizeof(Draw));
-#ifdef SK_DEBUG
- fHeadDraw->fGeometry = {-1, 0};
-#endif
- fHeadDraw->fNext = nullptr;
-}
-
-InstancedRendering::Batch::~Batch() {
- if (fIsTracked) {
- fInstancedRendering->fTrackedBatches.remove(this);
- }
-
- Draw* draw = fHeadDraw;
- while (draw) {
- Draw* next = draw->fNext;
- fInstancedRendering->fDrawPool.release(draw);
- draw = next;
- }
-}
-
-void InstancedRendering::Batch::appendRRectParams(const SkRRect& rrect) {
- SkASSERT(!fIsTracked);
- switch (rrect.getType()) {
- case SkRRect::kSimple_Type: {
- const SkVector& radii = rrect.getSimpleRadii();
- this->appendParamsTexel(radii.x(), radii.y(), rrect.width(), rrect.height());
- return;
- }
- case SkRRect::kNinePatch_Type: {
- float twoOverW = 2 / rrect.width();
- float twoOverH = 2 / rrect.height();
- const SkVector& radiiTL = rrect.radii(SkRRect::kUpperLeft_Corner);
- const SkVector& radiiBR = rrect.radii(SkRRect::kLowerRight_Corner);
- this->appendParamsTexel(radiiTL.x() * twoOverW, radiiBR.x() * twoOverW,
- radiiTL.y() * twoOverH, radiiBR.y() * twoOverH);
- return;
- }
- case SkRRect::kComplex_Type: {
- /**
- * The x and y radii of each arc are stored in separate vectors,
- * in the following order:
- *
- * __x1 _ _ _ x3__
- * y1 | | y2
- *
- * | |
- *
- * y3 |__ _ _ _ __| y4
- * x2 x4
- *
- */
- float twoOverW = 2 / rrect.width();
- float twoOverH = 2 / rrect.height();
- const SkVector& radiiTL = rrect.radii(SkRRect::kUpperLeft_Corner);
- const SkVector& radiiTR = rrect.radii(SkRRect::kUpperRight_Corner);
- const SkVector& radiiBR = rrect.radii(SkRRect::kLowerRight_Corner);
- const SkVector& radiiBL = rrect.radii(SkRRect::kLowerLeft_Corner);
- this->appendParamsTexel(radiiTL.x() * twoOverW, radiiBL.x() * twoOverW,
- radiiTR.x() * twoOverW, radiiBR.x() * twoOverW);
- this->appendParamsTexel(radiiTL.y() * twoOverH, radiiTR.y() * twoOverH,
- radiiBL.y() * twoOverH, radiiBR.y() * twoOverH);
- return;
- }
- default: return;
- }
-}
-
-void InstancedRendering::Batch::appendParamsTexel(const SkScalar* vals, int count) {
- SkASSERT(!fIsTracked);
- SkASSERT(count <= 4 && count >= 0);
- const float* valsAsFloats = vals; // Ensure SkScalar == float.
- memcpy(&fParams.push_back(), valsAsFloats, count * sizeof(float));
- fInfo.fHasParams = true;
-}
-
-void InstancedRendering::Batch::appendParamsTexel(SkScalar x, SkScalar y, SkScalar z, SkScalar w) {
- SkASSERT(!fIsTracked);
- ParamsTexel& texel = fParams.push_back();
- texel.fX = SkScalarToFloat(x);
- texel.fY = SkScalarToFloat(y);
- texel.fZ = SkScalarToFloat(z);
- texel.fW = SkScalarToFloat(w);
- fInfo.fHasParams = true;
-}
-
-void InstancedRendering::Batch::appendParamsTexel(SkScalar x, SkScalar y, SkScalar z) {
- SkASSERT(!fIsTracked);
- ParamsTexel& texel = fParams.push_back();
- texel.fX = SkScalarToFloat(x);
- texel.fY = SkScalarToFloat(y);
- texel.fZ = SkScalarToFloat(z);
- fInfo.fHasParams = true;
-}
-
-void InstancedRendering::Batch::initBatchTracker(const GrXPOverridesForBatch& overrides) {
- Draw& draw = this->getSingleDraw(); // This will assert if we have > 1 command.
- SkASSERT(draw.fGeometry.isEmpty());
- SkASSERT(SkIsPow2(fInfo.fShapeTypes));
- SkASSERT(!fIsTracked);
-
- if (kRect_ShapeFlag == fInfo.fShapeTypes) {
- draw.fGeometry = InstanceProcessor::GetIndexRangeForRect(fInfo.fAntialiasMode);
- } else if (kOval_ShapeFlag == fInfo.fShapeTypes) {
- draw.fGeometry = InstanceProcessor::GetIndexRangeForOval(fInfo.fAntialiasMode, fBounds);
- } else {
- draw.fGeometry = InstanceProcessor::GetIndexRangeForRRect(fInfo.fAntialiasMode);
- }
-
- if (!fParams.empty()) {
- SkASSERT(fInstancedRendering->fParams.count() < (int)kParamsIdx_InfoMask); // TODO: cleaner.
- this->getSingleInstance().fInfo |= fInstancedRendering->fParams.count();
- fInstancedRendering->fParams.push_back_n(fParams.count(), fParams.begin());
- }
-
- GrColor overrideColor;
- if (overrides.getOverrideColorIfSet(&overrideColor)) {
- SkASSERT(State::kRecordingDraws == fInstancedRendering->fState);
- this->getSingleInstance().fColor = overrideColor;
- }
- fInfo.fUsesLocalCoords = overrides.readsLocalCoords();
- fInfo.fCannotTweakAlphaForCoverage = !overrides.canTweakAlphaForCoverage();
-
- fInstancedRendering->fTrackedBatches.addToTail(this);
- fIsTracked = true;
-}
-
-bool InstancedRendering::Batch::onCombineIfPossible(GrBatch* other, const GrCaps& caps) {
- Batch* that = static_cast<Batch*>(other);
- SkASSERT(fInstancedRendering == that->fInstancedRendering);
- SkASSERT(fTailDraw);
- SkASSERT(that->fTailDraw);
-
- if (!fInfo.canJoin(that->fInfo) ||
- !GrPipeline::CanCombine(*this->pipeline(), this->bounds(),
- *that->pipeline(), that->bounds(), caps)) {
- return false;
- }
-
- fBounds.join(that->fBounds);
- fInfo.join(that->fInfo);
-
- // Adopt the other batch's draws.
- fNumDraws += that->fNumDraws;
- fNumChangesInGeometry += that->fNumChangesInGeometry;
- if (fTailDraw->fGeometry != that->fHeadDraw->fGeometry) {
- ++fNumChangesInGeometry;
- }
- fTailDraw->fNext = that->fHeadDraw;
- fTailDraw = that->fTailDraw;
-
- that->fHeadDraw = that->fTailDraw = nullptr;
-
- return true;
-}
-
-void InstancedRendering::Batch::computePipelineOptimizations(GrInitInvariantOutput* color,
- GrInitInvariantOutput* coverage,
- GrBatchToXPOverrides* overrides) const {
- // We need to be careful about fInfo here and consider how it might change as batches combine.
- // e.g. We can't make an assumption based on fInfo.isSimpleRects() because the batch might
- // later combine with a non-rect.
- color->setUnknownFourComponents();
- if (fInfo.fAntialiasMode >= AntialiasMode::kMSAA) {
- coverage->setKnownSingleComponent(255);
- } else if (AntialiasMode::kNone == fInfo.fAntialiasMode && !fInfo.fCannotDiscard) {
- coverage->setKnownSingleComponent(255);
- } else {
- coverage->setUnknownSingleComponent();
- }
-}
-
-void InstancedRendering::beginFlush(GrResourceProvider* rp) {
- SkASSERT(State::kRecordingDraws == fState);
- fState = State::kFlushing;
-
- if (fTrackedBatches.isEmpty()) {
- return;
- }
-
- if (!fVertexBuffer) {
- fVertexBuffer.reset(InstanceProcessor::FindOrCreateVertexBuffer(fGpu));
- if (!fVertexBuffer) {
- return;
- }
- }
-
- if (!fIndexBuffer) {
- fIndexBuffer.reset(InstanceProcessor::FindOrCreateIndex8Buffer(fGpu));
- if (!fIndexBuffer) {
- return;
- }
- }
-
- if (!fParams.empty()) {
- fParamsBuffer.reset(rp->createBuffer(fParams.count() * sizeof(ParamsTexel),
- kTexel_GrBufferType, kDynamic_GrAccessPattern,
- GrResourceProvider::kNoPendingIO_Flag,
- fParams.begin()));
- if (!fParamsBuffer) {
- return;
- }
- }
-
- this->onBeginFlush(rp);
-}
-
-void InstancedRendering::Batch::onDraw(GrBatchFlushState* state) {
- SkASSERT(State::kFlushing == fInstancedRendering->fState);
- SkASSERT(state->gpu() == fInstancedRendering->gpu());
-
- state->gpu()->handleDirtyContext();
- if (GrXferBarrierType barrierType = this->pipeline()->xferBarrierType(*state->gpu()->caps())) {
- state->gpu()->xferBarrier(this->pipeline()->getRenderTarget(), barrierType);
- }
-
- InstanceProcessor instProc(fInfo, fInstancedRendering->fParamsBuffer);
- fInstancedRendering->onDraw(*this->pipeline(), instProc, this);
-}
-
-void InstancedRendering::endFlush() {
- // The caller is expected to delete all tracked batches (i.e. batches whose initBatchTracker
- // method has been called) before ending the flush.
- SkASSERT(fTrackedBatches.isEmpty());
- fParams.reset();
- fParamsBuffer.reset();
- this->onEndFlush();
- fState = State::kRecordingDraws;
- // Hold on to the shape coords and index buffers.
-}
-
-void InstancedRendering::resetGpuResources(ResetType resetType) {
- fVertexBuffer.reset();
- fIndexBuffer.reset();
- fParamsBuffer.reset();
- this->onResetGpuResources(resetType);
-}
-
-}
diff --git a/src/gpu/instanced/InstancedRendering.h b/src/gpu/instanced/InstancedRendering.h
deleted file mode 100644
index 863839c19d..0000000000
--- a/src/gpu/instanced/InstancedRendering.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef gr_instanced_InstancedRendering_DEFINED
-#define gr_instanced_InstancedRendering_DEFINED
-
-#include "GrMemoryPool.h"
-#include "SkTInternalLList.h"
-#include "batches/GrDrawBatch.h"
-#include "instanced/InstancedRenderingTypes.h"
-#include "../private/GrInstancedPipelineInfo.h"
-
-class GrResourceProvider;
-
-namespace gr_instanced {
-
-class InstanceProcessor;
-
-/**
- * This class serves as a centralized clearinghouse for instanced rendering. It accumulates data for
- * instanced draws into one location, and creates special batches that pull from this data. The
- * nature of instanced rendering allows these batches to combine well and render efficiently.
- *
- * During a flush, this class assembles the accumulated draw data into a single vertex and texel
- * buffer, and its subclass draws the batches using backend-specific instanced rendering APIs.
- *
- * This class is responsible for the CPU side of instanced rendering. Shaders are implemented by
- * InstanceProcessor.
- */
-class InstancedRendering : public SkNoncopyable {
-public:
- virtual ~InstancedRendering() { SkASSERT(State::kRecordingDraws == fState); }
-
- GrGpu* gpu() const { return fGpu; }
-
- /**
- * These methods make a new record internally for an instanced draw, and return a batch that is
- * effectively just an index to that record. The returned batch is not self-contained, but
- * rather relies on this class to handle the rendering. The client must call beginFlush() on
- * this class before attempting to flush batches returned by it. It is invalid to record new
- * draws between beginFlush() and endFlush().
- */
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordRect(const SkRect&, const SkMatrix&, GrColor,
- bool antialias, const GrInstancedPipelineInfo&,
- bool* useHWAA);
-
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordRect(const SkRect&, const SkMatrix&, GrColor,
- const SkRect& localRect, bool antialias,
- const GrInstancedPipelineInfo&, bool* useHWAA);
-
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordRect(const SkRect&, const SkMatrix&, GrColor,
- const SkMatrix& localMatrix, bool antialias,
- const GrInstancedPipelineInfo&, bool* useHWAA);
-
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordOval(const SkRect&, const SkMatrix&, GrColor,
- bool antialias, const GrInstancedPipelineInfo&,
- bool* useHWAA);
-
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordRRect(const SkRRect&, const SkMatrix&, GrColor,
- bool antialias, const GrInstancedPipelineInfo&,
- bool* useHWAA);
-
- GrDrawBatch* SK_WARN_UNUSED_RESULT recordDRRect(const SkRRect& outer, const SkRRect& inner,
- const SkMatrix&, GrColor, bool antialias,
- const GrInstancedPipelineInfo&, bool* useHWAA);
-
- /**
- * Compiles all recorded draws into GPU buffers and allows the client to begin flushing the
- * batches created by this class.
- */
- void beginFlush(GrResourceProvider*);
-
- /**
- * Called once the batches created previously by this class have all been released. Allows the
- * client to begin recording draws again.
- */
- void endFlush();
-
- enum class ResetType : bool {
- kDestroy,
- kAbandon
- };
-
- /**
- * Resets all GPU resources, including those that are held long term. They will be lazily
- * reinitialized if the class begins to be used again.
- */
- void resetGpuResources(ResetType);
-
-protected:
- class Batch : public GrDrawBatch {
- public:
- SK_DECLARE_INTERNAL_LLIST_INTERFACE(Batch);
-
- ~Batch() override;
- const char* name() const override { return "Instanced Batch"; }
-
- struct Draw {
- Instance fInstance;
- IndexRange fGeometry;
- Draw* fNext;
- };
-
- Draw& getSingleDraw() const { SkASSERT(fHeadDraw && !fHeadDraw->fNext); return *fHeadDraw; }
- Instance& getSingleInstance() const { return this->getSingleDraw().fInstance; }
-
- void appendRRectParams(const SkRRect&);
- void appendParamsTexel(const SkScalar* vals, int count);
- void appendParamsTexel(SkScalar x, SkScalar y, SkScalar z, SkScalar w);
- void appendParamsTexel(SkScalar x, SkScalar y, SkScalar z);
-
- protected:
- Batch(uint32_t classID, InstancedRendering* ir);
-
- void initBatchTracker(const GrXPOverridesForBatch&) override;
- bool onCombineIfPossible(GrBatch* other, const GrCaps& caps) override;
-
- void computePipelineOptimizations(GrInitInvariantOutput* color,
- GrInitInvariantOutput* coverage,
- GrBatchToXPOverrides*) const override;
-
- void onPrepare(GrBatchFlushState*) override {}
- void onDraw(GrBatchFlushState*) override;
-
- InstancedRendering* const fInstancedRendering;
- BatchInfo fInfo;
- SkSTArray<5, ParamsTexel, true> fParams;
- bool fIsTracked;
- int fNumDraws;
- int fNumChangesInGeometry;
- Draw* fHeadDraw;
- Draw* fTailDraw;
-
- typedef GrDrawBatch INHERITED;
-
- friend class InstancedRendering;
- };
-
- typedef SkTInternalLList<Batch> BatchList;
-
- InstancedRendering(GrGpu* gpu, AntialiasMode lastSupportedAAMode, bool canRenderToFloat);
-
- const BatchList& trackedBatches() const { return fTrackedBatches; }
- const GrBuffer* vertexBuffer() const { SkASSERT(fVertexBuffer); return fVertexBuffer; }
- const GrBuffer* indexBuffer() const { SkASSERT(fIndexBuffer); return fIndexBuffer; }
-
- virtual void onBeginFlush(GrResourceProvider*) = 0;
- virtual void onDraw(const GrPipeline&, const InstanceProcessor&, const Batch*) = 0;
- virtual void onEndFlush() = 0;
- virtual void onResetGpuResources(ResetType) = 0;
-
-private:
- enum class State : bool {
- kRecordingDraws,
- kFlushing
- };
-
- Batch* SK_WARN_UNUSED_RESULT recordShape(ShapeType, const SkRect& bounds,
- const SkMatrix& viewMatrix, GrColor,
- const SkRect& localRect, bool antialias,
- const GrInstancedPipelineInfo&, bool* requireHWAA);
-
- bool selectAntialiasMode(const SkMatrix& viewMatrix, bool antialias,
- const GrInstancedPipelineInfo&, bool* useHWAA, AntialiasMode*);
-
- virtual Batch* createBatch() = 0;
-
- const SkAutoTUnref<GrGpu> fGpu;
- const AntialiasMode fLastSupportedAAMode;
- const bool fCanRenderToFloat;
- State fState;
- GrMemoryPool fDrawPool;
- SkSTArray<1024, ParamsTexel, true> fParams;
- BatchList fTrackedBatches;
- SkAutoTUnref<const GrBuffer> fVertexBuffer;
- SkAutoTUnref<const GrBuffer> fIndexBuffer;
- SkAutoTUnref<GrBuffer> fParamsBuffer;
-};
-
-}
-
-#endif
diff --git a/src/gpu/instanced/InstancedRenderingTypes.h b/src/gpu/instanced/InstancedRenderingTypes.h
deleted file mode 100644
index ff9471c428..0000000000
--- a/src/gpu/instanced/InstancedRenderingTypes.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef gr_instanced_InstancedRenderingTypes_DEFINED
-#define gr_instanced_InstancedRenderingTypes_DEFINED
-
-#include "GrTypes.h"
-#include "SkRRect.h"
-
-namespace gr_instanced {
-
-/**
- * Per-vertex data. These values get fed into normal vertex attribs.
- */
-struct ShapeVertex {
- float fX, fY; //!< Shape coordinates.
- int32_t fAttrs; //!< Shape-specific vertex attributes, if needed.
-};
-
-/**
- * Per-instance data. These values get fed into instanced vertex attribs.
- */
-struct Instance {
- uint32_t fInfo; //!< Packed info about the instance. See InfoBits.
- float fShapeMatrix2x3[6]; //!< Maps canonical shape coords -> device space coords.
- uint32_t fColor; //!< Color to be written out by the primitive processor.
- float fLocalRect[4]; //!< Local coords rect that spans [-1, +1] in shape coords.
-};
-
-enum class Attrib : uint8_t {
- kShapeCoords,
- kVertexAttrs,
- kInstanceInfo,
- kShapeMatrixX,
- kShapeMatrixY,
- kColor,
- kLocalRect
-};
-constexpr int kNumAttribs = 1 + (int)Attrib::kLocalRect;
-
-enum class AntialiasMode : uint8_t {
- kNone,
- kCoverage,
- kMSAA,
- kMixedSamples
-};
-constexpr int kNumAntialiasModes = 1 + (int)AntialiasMode::kMixedSamples;
-
-enum class ShapeType : uint8_t {
- kRect,
- kOval,
- kSimpleRRect,
- kNinePatch,
- kComplexRRect
-};
-constexpr int kNumShapeTypes = 1 + (int)ShapeType::kComplexRRect;
-
-inline static ShapeType GetRRectShapeType(const SkRRect& rrect) {
- SkASSERT(rrect.getType() >= SkRRect::kRect_Type &&
- rrect.getType() <= SkRRect::kComplex_Type);
- return static_cast<ShapeType>(rrect.getType() - 1);
-
- GR_STATIC_ASSERT((int)ShapeType::kRect == SkRRect::kRect_Type - 1);
- GR_STATIC_ASSERT((int)ShapeType::kOval == SkRRect::kOval_Type - 1);
- GR_STATIC_ASSERT((int)ShapeType::kSimpleRRect == SkRRect::kSimple_Type - 1);
- GR_STATIC_ASSERT((int)ShapeType::kNinePatch == SkRRect::kNinePatch_Type - 1);
- GR_STATIC_ASSERT((int)ShapeType::kComplexRRect == SkRRect::kComplex_Type - 1);
- GR_STATIC_ASSERT(kNumShapeTypes == SkRRect::kComplex_Type);
-}
-
-enum ShapeFlag {
- kRect_ShapeFlag = (1 << (int)ShapeType::kRect),
- kOval_ShapeFlag = (1 << (int)ShapeType::kOval),
- kSimpleRRect_ShapeFlag = (1 << (int)ShapeType::kSimpleRRect),
- kNinePatch_ShapeFlag = (1 << (int)ShapeType::kNinePatch),
- kComplexRRect_ShapeFlag = (1 << (int)ShapeType::kComplexRRect),
-
- kRRect_ShapesMask = kSimpleRRect_ShapeFlag | kNinePatch_ShapeFlag | kComplexRRect_ShapeFlag
-};
-
-constexpr uint8_t GetShapeFlag(ShapeType type) { return 1 << (int)type; }
-
-/**
- * Defines what data is stored at which bits in the fInfo field of the instanced data.
- */
-enum InfoBits {
- kShapeType_InfoBit = 29,
- kInnerShapeType_InfoBit = 27,
- kPerspective_InfoBit = 26,
- kLocalMatrix_InfoBit = 25,
- kParamsIdx_InfoBit = 0
-};
-
-enum InfoMasks {
- kShapeType_InfoMask = 0u - (1 << kShapeType_InfoBit),
- kInnerShapeType_InfoMask = (1 << kShapeType_InfoBit) - (1 << kInnerShapeType_InfoBit),
- kPerspective_InfoFlag = (1 << kPerspective_InfoBit),
- kLocalMatrix_InfoFlag = (1 << kLocalMatrix_InfoBit),
- kParamsIdx_InfoMask = (1 << kLocalMatrix_InfoBit) - 1
-};
-
-GR_STATIC_ASSERT((kNumShapeTypes - 1) <= (uint32_t)kShapeType_InfoMask >> kShapeType_InfoBit);
-GR_STATIC_ASSERT((int)ShapeType::kSimpleRRect <=
- kInnerShapeType_InfoMask >> kInnerShapeType_InfoBit);
-
-/**
- * Additional parameters required by some instances (e.g. round rect radii, perspective column,
- * local matrix). These are accessed via texel buffer.
- */
-struct ParamsTexel {
- float fX, fY, fZ, fW;
-};
-
-GR_STATIC_ASSERT(0 == offsetof(ParamsTexel, fX));
-GR_STATIC_ASSERT(4 * 4 == sizeof(ParamsTexel));
-
-/**
- * Tracks all information needed in order to draw a batch of instances. This struct also serves
- * as an all-in-one shader key for the batch.
- */
-struct BatchInfo {
- BatchInfo() : fData(0) {}
-
- bool isSimpleRects() const {
- return !((fShapeTypes & ~kRect_ShapeFlag) | fInnerShapeTypes);
- }
-
- bool canJoin(BatchInfo that) const {
- if (fAntialiasMode != that.fAntialiasMode) {
- return false;
- }
- if (SkToBool(fInnerShapeTypes) != SkToBool(that.fInnerShapeTypes)) {
- // GrInstanceProcessor can't currently combine draws with and without inner shapes.
- return false;
- }
- if (fCannotDiscard != that.fCannotDiscard) {
- // For stencil draws, the use of discard can be a requirement.
- return false;
- }
- return true;
- }
-
- void join(BatchInfo that) {
- SkASSERT(this->canJoin(that));
- fData |= that.fData;
- }
-
- union {
- struct {
- AntialiasMode fAntialiasMode;
- uint8_t fShapeTypes;
- uint8_t fInnerShapeTypes;
- bool fHasPerspective : 1;
- bool fHasLocalMatrix : 1;
- bool fHasParams : 1;
- bool fNonSquare : 1;
- bool fUsesLocalCoords : 1;
- bool fCannotTweakAlphaForCoverage : 1;
- bool fCannotDiscard : 1;
- };
- uint32_t fData;
- };
-};
-
-// This is required since all the data must fit into 32 bits of a shader key.
-GR_STATIC_ASSERT(sizeof(uint32_t) == sizeof(BatchInfo));
-GR_STATIC_ASSERT(kNumShapeTypes <= 8);
-
-template<typename T> struct TRange {
- bool operator ==(const TRange& that) const {
- return fStart == that.fStart && fCount == that.fCount;
- }
- bool operator !=(const TRange& that) const { return !(*this == that); }
-
- bool isEmpty() const { return fCount <= 0; }
- T end() { return fStart + fCount; }
-
- T fStart;
- T fCount;
-};
-
-typedef TRange<int16_t> IndexRange;
-typedef TRange<int> InstanceRange;
-
-}
-
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 10:23:54 +0000