blob: 560adc0a978695c15415c86f732cea5e228cdb52 [file] [log] [blame]
* Copyright 2018 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "src/gpu/ops/GrFillRectOp.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkRect.h"
#include "src/gpu/GrCaps.h"
#include "src/gpu/GrGeometryProcessor.h"
#include "src/gpu/GrPaint.h"
#include "src/gpu/SkGr.h"
#include "src/gpu/geometry/GrQuad.h"
#include "src/gpu/geometry/GrQuadBuffer.h"
#include "src/gpu/geometry/GrQuadUtils.h"
#include "src/gpu/glsl/GrGLSLColorSpaceXformHelper.h"
#include "src/gpu/glsl/GrGLSLGeometryProcessor.h"
#include "src/gpu/glsl/GrGLSLVarying.h"
#include "src/gpu/ops/GrMeshDrawOp.h"
#include "src/gpu/ops/GrQuadPerEdgeAA.h"
#include "src/gpu/ops/GrSimpleMeshDrawOpHelper.h"
namespace {
using VertexSpec = GrQuadPerEdgeAA::VertexSpec;
using ColorType = GrQuadPerEdgeAA::ColorType;
#ifdef SK_DEBUG
static SkString dump_quad_info(int index, const GrQuad& deviceQuad,
const GrQuad& localQuad, const SkPMColor4f& color,
GrQuadAAFlags aaFlags) {
SkString str;
str.appendf("%d: Color: [%.2f, %.2f, %.2f, %.2f], Edge AA: l%u_t%u_r%u_b%u, \n"
" device quad: [(%.2f, %2.f, %.2f), (%.2f, %.2f, %.2f), (%.2f, %.2f, %.2f), "
"(%.2f, %.2f, %.2f)],\n"
" local quad: [(%.2f, %2.f, %.2f), (%.2f, %.2f, %.2f), (%.2f, %.2f, %.2f), "
"(%.2f, %.2f, %.2f)]\n",
index, color.fR, color.fG, color.fB, color.fA,
(uint32_t) (aaFlags & GrQuadAAFlags::kLeft),
(uint32_t) (aaFlags & GrQuadAAFlags::kTop),
(uint32_t) (aaFlags & GrQuadAAFlags::kRight),
(uint32_t) (aaFlags & GrQuadAAFlags::kBottom),
deviceQuad.x(0), deviceQuad.y(0), deviceQuad.w(0),
deviceQuad.x(1), deviceQuad.y(1), deviceQuad.w(1),
deviceQuad.x(2), deviceQuad.y(2), deviceQuad.w(2),
deviceQuad.x(3), deviceQuad.y(3), deviceQuad.w(3),
localQuad.x(0), localQuad.y(0), localQuad.w(0),
localQuad.x(1), localQuad.y(1), localQuad.w(1),
localQuad.x(2), localQuad.y(2), localQuad.w(2),
localQuad.x(3), localQuad.y(3), localQuad.w(3));
return str;
class FillRectOp final : public GrMeshDrawOp {
using Helper = GrSimpleMeshDrawOpHelperWithStencil;
static std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context,
GrPaint&& paint,
GrAAType aaType,
GrQuadAAFlags edgeAA,
const GrUserStencilSettings* stencilSettings,
const GrQuad& deviceQuad,
const GrQuad& localQuad) {
// Clean up deviations between aaType and edgeAA
GrQuadUtils::ResolveAAType(aaType, edgeAA, deviceQuad, &aaType, &edgeAA);
return Helper::FactoryHelper<FillRectOp>(context, std::move(paint), aaType, edgeAA,
stencilSettings, deviceQuad, localQuad);
// aaType is passed to Helper in the initializer list, so incongruities between aaType and
// edgeFlags must be resolved prior to calling this constructor.
FillRectOp(Helper::MakeArgs args, SkPMColor4f paintColor, GrAAType aaType,
GrQuadAAFlags edgeFlags, const GrUserStencilSettings* stencil,
const GrQuad& deviceQuad, const GrQuad& localQuad)
, fHelper(args, aaType, stencil)
, fQuads(1, !fHelper.isTrivial()) {
// Conservatively keep track of the local coordinates; it may be that the paint doesn't
// need them after analysis is finished. If the paint is known to be solid up front they
// can be skipped entirely.
fQuads.append(deviceQuad, { paintColor, edgeFlags },
fHelper.isTrivial() ? nullptr : &localQuad);
this->setBounds(deviceQuad.bounds(), HasAABloat(aaType == GrAAType::kCoverage),
const char* name() const override { return "FillRectOp"; }
void visitProxies(const VisitProxyFunc& func) const override {
return fHelper.visitProxies(func);
#ifdef SK_DEBUG
SkString dumpInfo() const override {
SkString str;
str.appendf("# draws: %u\n", fQuads.count());
str.appendf("Device quad type: %u, local quad type: %u\n",
(uint32_t) fQuads.deviceQuadType(), (uint32_t) fQuads.localQuadType());
str += fHelper.dumpInfo();
int i = 0;
auto iter = fQuads.iterator();
while( {
const ColorAndAA& info = iter.metadata();
str += dump_quad_info(i, iter.deviceQuad(), iter.localQuad(),
info.fColor, info.fAAFlags);
str += INHERITED::dumpInfo();
return str;
GrProcessorSet::Analysis finalize(
const GrCaps& caps, const GrAppliedClip* clip, bool hasMixedSampledCoverage,
GrClampType clampType) override {
// Initialize aggregate color analysis with the first quad's color (which always exists)
auto iter = fQuads.metadata();
GrProcessorAnalysisColor quadColors(iter->fColor);
// Then combine the colors of any additional quads (e.g. from MakeSet)
while( {
quadColors = GrProcessorAnalysisColor::Combine(quadColors, iter->fColor);
if (quadColors.isUnknown()) {
// No point in accumulating additional starting colors, combining cannot make it
// less unknown.
// If the AA type is coverage, it will be a single value per pixel; if it's not coverage AA
// then the coverage is always 1.0, so specify kNone for more optimal blending.
GrProcessorAnalysisCoverage coverage = fHelper.aaType() == GrAAType::kCoverage ?
GrProcessorAnalysisCoverage::kSingleChannel :
auto result = fHelper.finalizeProcessors(
caps, clip, hasMixedSampledCoverage, clampType, coverage, &quadColors);
// If there is a constant color after analysis, that means all of the quads should be set
// to the same color (even if they started out with different colors).
iter = fQuads.metadata();
SkPMColor4f colorOverride;
if (quadColors.isConstant(&colorOverride)) {
fColorType = GrQuadPerEdgeAA::MinColorType(colorOverride, clampType, caps);
while( {
iter->fColor = colorOverride;
} else {
// Otherwise compute the color type needed as the max over all quads.
fColorType = ColorType::kNone;
while( {
fColorType = SkTMax(fColorType,
GrQuadPerEdgeAA::MinColorType(iter->fColor, clampType, caps));
// Most SkShaders' FPs multiply their calculated color by the paint color or alpha. We want
// to use ColorType::kNone to optimize out that multiply. However, if there are no color
// FPs then were really writing a special shader for white rectangles and not saving any
// multiples. So in that case use bytes to avoid the extra shader (and possibly work around
// an ANGLE issue:
if (fColorType == ColorType::kNone && !result.hasColorFragmentProcessor()) {
fColorType = ColorType::kByte;
return result;
FixedFunctionFlags fixedFunctionFlags() const override {
// Since the AA type of the whole primitive is kept consistent with the per edge AA flags
// the helper's fixed function flags are appropriate.
return fHelper.fixedFunctionFlags();
// For GrFillRectOp::MakeSet's use of addQuad
friend std::unique_ptr<GrDrawOp> GrFillRectOp::MakeSet(
GrAAType, const SkMatrix& viewMatrix,
const GrRenderTargetContext::QuadSetEntry quads[], int quadCount,
const GrUserStencilSettings*);
void onPrepareDraws(Target* target) override {
using Domain = GrQuadPerEdgeAA::Domain;
static constexpr SkRect kEmptyDomain = SkRect::MakeEmpty();
VertexSpec vertexSpec(fQuads.deviceQuadType(), fColorType, fQuads.localQuadType(),
fHelper.usesLocalCoords(), Domain::kNo, fHelper.aaType(),
// Make sure that if the op thought it was a solid color, the vertex spec does not use
// local coords.
SkASSERT(!fHelper.isTrivial() || !fHelper.usesLocalCoords());
sk_sp<GrGeometryProcessor> gp = GrQuadPerEdgeAA::MakeProcessor(vertexSpec);
size_t vertexSize = gp->vertexStride();
sk_sp<const GrBuffer> vbuffer;
int vertexOffsetInBuffer = 0;
// Fill the allocated vertex data
void* vdata = target->makeVertexSpace(
vertexSize, fQuads.count() * vertexSpec.verticesPerQuad(),
&vbuffer, &vertexOffsetInBuffer);
if (!vdata) {
SkDebugf("Could not allocate vertices\n");
// vertices pointer advances through vdata based on Tessellate's return value
void* vertices = vdata;
auto iter = fQuads.iterator();
while( {
// All entries should have local coords, or no entries should have local coords,
// matching !helper.isTrivial() (which is more conservative than helper.usesLocalCoords)
SkASSERT(iter.isLocalValid() != fHelper.isTrivial());
auto info = iter.metadata();
vertices = GrQuadPerEdgeAA::Tessellate(vertices, vertexSpec, iter.deviceQuad(),
info.fColor, iter.localQuad(), kEmptyDomain, info.fAAFlags);
// Configure the mesh for the vertex data
GrMesh* mesh = target->allocMeshes(1);
if (!GrQuadPerEdgeAA::ConfigureMeshIndices(target, mesh, vertexSpec, fQuads.count())) {
SkDebugf("Could not allocate indices\n");
mesh->setVertexData(std::move(vbuffer), vertexOffsetInBuffer);
target->recordDraw(std::move(gp), mesh);
void onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) override {
fHelper.executeDrawsAndUploads(this, flushState, chainBounds);
CombineResult onCombineIfPossible(GrOp* t, const GrCaps& caps) override {
const auto* that = t->cast<FillRectOp>();
if ((fHelper.aaType() == GrAAType::kCoverage ||
that->fHelper.aaType() == GrAAType::kCoverage) &&
fQuads.count() + that->fQuads.count() > GrQuadPerEdgeAA::kNumAAQuadsInIndexBuffer) {
// This limit on batch size seems to help on Adreno devices
return CombineResult::kCannotCombine;
// Unlike most users of the draw op helper, this op can merge none-aa and coverage-aa draw
// ops together, so pass true as the last argument.
if (!fHelper.isCompatible(that->fHelper, caps, this->bounds(), that->bounds(), true)) {
return CombineResult::kCannotCombine;
// If the paints were compatible, the trivial/solid-color state should be the same
SkASSERT(fHelper.isTrivial() == that->fHelper.isTrivial());
// If the processor sets are compatible, the two ops are always compatible; it just needs to
// adjust the state of the op to be the more general quad and aa types of the two ops and
// then concatenate the per-quad data.
fColorType = SkTMax(fColorType, that->fColorType);
// The helper stores the aa type, but isCompatible(with true arg) allows the two ops' aa
// types to be none and coverage, in which case this op's aa type must be lifted to coverage
// so that quads with no aa edges can be batched with quads that have some/all edges aa'ed.
if (fHelper.aaType() == GrAAType::kNone && that->fHelper.aaType() == GrAAType::kCoverage) {
return CombineResult::kMerged;
// Similar to onCombineIfPossible, but adds a quad assuming its op would have been compatible.
// But since it's avoiding the op list management, it must update the op's bounds. This is only
// used with quad sets, which uses the same view matrix for each quad so this assumes that the
// device quad type of the new quad is the same as the op's.
void addQuad(const GrQuad& deviceQuad, const GrQuad& localQuad,
const SkPMColor4f& color, GrQuadAAFlags edgeAA, GrAAType aaType) {
// The new quad's aa type should be the same as the first quad's or none, except when the
// first quad's aa type was already downgraded to none, in which case the stored type must
// be lifted to back to the requested type.
if (aaType != fHelper.aaType()) {
if (aaType != GrAAType::kNone) {
// Original quad was downgraded to non-aa, lift back up to this quad's required type
SkASSERT(fHelper.aaType() == GrAAType::kNone);
// else the new quad could have been downgraded but the other quads can't be, so don't
// reset the op's accumulated aa type.
// Update the bounds and add the quad to this op's storage
SkRect newBounds = this->bounds();
this->setBounds(newBounds, HasAABloat(fHelper.aaType() == GrAAType::kCoverage),
fQuads.append(deviceQuad, { color, edgeAA }, fHelper.isTrivial() ? nullptr : &localQuad);
struct ColorAndAA {
SkPMColor4f fColor;
GrQuadAAFlags fAAFlags;
Helper fHelper;
GrQuadBuffer<ColorAndAA> fQuads;
ColorType fColorType;
typedef GrMeshDrawOp INHERITED;
} // anonymous namespace
namespace GrFillRectOp {
std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context,
GrPaint&& paint,
GrAAType aaType,
GrQuadAAFlags aaFlags,
const GrQuad& deviceQuad,
const GrQuad& localQuad,
const GrUserStencilSettings* stencil) {
return FillRectOp::Make(context, std::move(paint), aaType, aaFlags, stencil,
deviceQuad, localQuad);
std::unique_ptr<GrDrawOp> MakeNonAARect(GrRecordingContext* context,
GrPaint&& paint,
const SkMatrix& view,
const SkRect& rect,
const GrUserStencilSettings* stencil) {
return FillRectOp::Make(context, std::move(paint), GrAAType::kNone, GrQuadAAFlags::kNone,
stencil, GrQuad::MakeFromRect(rect, view), GrQuad(rect));
std::unique_ptr<GrDrawOp> MakeSet(GrRecordingContext* context,
GrPaint&& paint,
GrAAType aaType,
const SkMatrix& viewMatrix,
const GrRenderTargetContext::QuadSetEntry quads[],
int cnt,
const GrUserStencilSettings* stencilSettings) {
// First make a draw op for the first quad in the set
SkASSERT(cnt > 0);
std::unique_ptr<GrDrawOp> op = FillRectOp::Make(context, std::move(paint), aaType,
quads[0].fAAFlags, stencilSettings,
GrQuad::MakeFromRect(quads[0].fRect, viewMatrix),
GrQuad::MakeFromRect(quads[0].fRect, quads[0].fLocalMatrix));
auto* fillRects = op->cast<FillRectOp>();
// Accumulate remaining quads similar to onCombineIfPossible() without creating an op
for (int i = 1; i < cnt; ++i) {
GrQuad deviceQuad = GrQuad::MakeFromRect(quads[i].fRect, viewMatrix);
GrAAType resolvedAA;
GrQuadAAFlags resolvedEdgeFlags;
GrQuadUtils::ResolveAAType(aaType, quads[i].fAAFlags, deviceQuad,
&resolvedAA, &resolvedEdgeFlags);
GrQuad::MakeFromRect(quads[i].fRect, quads[i].fLocalMatrix),
quads[i].fColor, resolvedEdgeFlags,resolvedAA);
return op;
} // namespace GrFillRectOp
#include "src/gpu/GrDrawOpTest.h"
#include "src/gpu/SkGr.h"
SkMatrix viewMatrix = GrTest::TestMatrixInvertible(random);
SkRect rect = GrTest::TestRect(random);
GrAAType aaType = GrAAType::kNone;
if (random->nextBool()) {
aaType = (numSamples > 1) ? GrAAType::kMSAA : GrAAType::kCoverage;
const GrUserStencilSettings* stencil = random->nextBool() ? nullptr
: GrGetRandomStencil(random, context);
GrQuadAAFlags aaFlags = GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kLeft : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kTop : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kRight : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kBottom : GrQuadAAFlags::kNone;
if (random->nextBool()) {
if (random->nextBool()) {
if (random->nextBool()) {
// Local matrix with a set op
uint32_t extraQuadCt = random->nextRangeU(1, 4);
SkTArray<GrRenderTargetContext::QuadSetEntry> quads(extraQuadCt + 1);
{rect, SkPMColor4f::FromBytes_RGBA(SkColorToPremulGrColor(random->nextU())),
GrTest::TestMatrixInvertible(random), aaFlags});
for (uint32_t i = 0; i < extraQuadCt; ++i) {
GrQuadAAFlags aaFlags = GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kLeft : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kTop : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kRight : GrQuadAAFlags::kNone;
aaFlags |= random->nextBool() ? GrQuadAAFlags::kBottom : GrQuadAAFlags::kNone;
GrTest::TestMatrixInvertible(random), aaFlags});
return GrFillRectOp::MakeSet(context, std::move(paint), aaType, viewMatrix,
quads.begin(), quads.count(), stencil);
} else {
// Single local matrix
SkMatrix localMatrix = GrTest::TestMatrixInvertible(random);
return GrFillRectOp::Make(context, std::move(paint), aaType, aaFlags,
GrQuad::MakeFromRect(rect, viewMatrix),
GrQuad::MakeFromRect(rect, localMatrix), stencil);
} else {
// Pass local rect directly
SkRect localRect = GrTest::TestRect(random);
return GrFillRectOp::Make(context, std::move(paint), aaType, aaFlags,
GrQuad::MakeFromRect(rect, viewMatrix),
GrQuad(localRect), stencil);
} else {
// The simplest constructor
return GrFillRectOp::Make(context, std::move(paint), aaType, aaFlags,
GrQuad::MakeFromRect(rect, viewMatrix),
GrQuad(rect), stencil);