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cobalt / cobalt / 02dc75a3e28204929da5793da854c523d59e642c / . / src / third_party / skia / src / gpu / GrRenderTargetContext.cpp
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/*
* Copyright 2015 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/GrRenderTargetContext.h"
#include "include/core/SkDrawable.h"
#include "include/gpu/GrBackendSemaphore.h"
#include "include/private/GrRecordingContext.h"
#include "include/private/SkShadowFlags.h"
#include "include/utils/SkShadowUtils.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/core/SkConvertPixels.h"
#include "src/core/SkDrawShadowInfo.h"
#include "src/core/SkGlyphRunPainter.h"
#include "src/core/SkLatticeIter.h"
#include "src/core/SkMakeUnique.h"
#include "src/core/SkMatrixPriv.h"
#include "src/core/SkRRectPriv.h"
#include "src/core/SkSurfacePriv.h"
#include "src/gpu/GrAppliedClip.h"
#include "src/gpu/GrAuditTrail.h"
#include "src/gpu/GrBlurUtils.h"
#include "src/gpu/GrCaps.h"
#include "src/gpu/GrClientMappedBufferManager.h"
#include "src/gpu/GrColor.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrDataUtils.h"
#include "src/gpu/GrDrawingManager.h"
#include "src/gpu/GrFixedClip.h"
#include "src/gpu/GrGpuResourcePriv.h"
#include "src/gpu/GrImageInfo.h"
#include "src/gpu/GrMemoryPool.h"
#include "src/gpu/GrPathRenderer.h"
#include "src/gpu/GrRecordingContextPriv.h"
#include "src/gpu/GrRenderTarget.h"
#include "src/gpu/GrRenderTargetContextPriv.h"
#include "src/gpu/GrResourceProvider.h"
#include "src/gpu/GrStencilAttachment.h"
#include "src/gpu/GrStyle.h"
#include "src/gpu/GrTracing.h"
#include "src/gpu/SkGr.h"
#include "src/gpu/effects/GrBicubicEffect.h"
#include "src/gpu/effects/GrRRectEffect.h"
#include "src/gpu/effects/GrTextureDomain.h"
#include "src/gpu/effects/generated/GrColorMatrixFragmentProcessor.h"
#include "src/gpu/geometry/GrQuad.h"
#include "src/gpu/geometry/GrQuadUtils.h"
#include "src/gpu/geometry/GrShape.h"
#include "src/gpu/ops/GrAtlasTextOp.h"
#include "src/gpu/ops/GrClearOp.h"
#include "src/gpu/ops/GrClearStencilClipOp.h"
#include "src/gpu/ops/GrDebugMarkerOp.h"
#include "src/gpu/ops/GrDrawAtlasOp.h"
#include "src/gpu/ops/GrDrawOp.h"
#include "src/gpu/ops/GrDrawVerticesOp.h"
#include "src/gpu/ops/GrDrawableOp.h"
#include "src/gpu/ops/GrFillRRectOp.h"
#include "src/gpu/ops/GrFillRectOp.h"
#include "src/gpu/ops/GrLatticeOp.h"
#include "src/gpu/ops/GrOp.h"
#include "src/gpu/ops/GrOvalOpFactory.h"
#include "src/gpu/ops/GrRegionOp.h"
#include "src/gpu/ops/GrShadowRRectOp.h"
#include "src/gpu/ops/GrStencilPathOp.h"
#include "src/gpu/ops/GrStrokeRectOp.h"
#include "src/gpu/ops/GrTextureOp.h"
#include "src/gpu/text/GrTextContext.h"
#include "src/gpu/text/GrTextTarget.h"
class GrRenderTargetContext::TextTarget : public GrTextTarget {
public:
TextTarget(GrRenderTargetContext* renderTargetContext)
: GrTextTarget(renderTargetContext->width(), renderTargetContext->height(),
renderTargetContext->colorInfo())
, fRenderTargetContext(renderTargetContext)
, fGlyphPainter{*renderTargetContext} {}
void addDrawOp(const GrClip& clip, std::unique_ptr<GrAtlasTextOp> op) override {
fRenderTargetContext->addDrawOp(clip, std::move(op));
}
void drawShape(const GrClip& clip, const SkPaint& paint,
const SkMatrix& viewMatrix, const GrShape& shape) override {
GrBlurUtils::drawShapeWithMaskFilter(fRenderTargetContext->fContext, fRenderTargetContext,
clip, paint, viewMatrix, shape);
}
void makeGrPaint(GrMaskFormat maskFormat, const SkPaint& skPaint, const SkMatrix& viewMatrix,
GrPaint* grPaint) override {
auto context = fRenderTargetContext->fContext;
const GrColorInfo& colorInfo = fRenderTargetContext->colorInfo();
if (kARGB_GrMaskFormat == maskFormat) {
SkPaintToGrPaintWithPrimitiveColor(context, colorInfo, skPaint, grPaint);
} else {
SkPaintToGrPaint(context, colorInfo, skPaint, viewMatrix, grPaint);
}
}
GrRecordingContext* getContext() override {
return fRenderTargetContext->fContext;
}
SkGlyphRunListPainter* glyphPainter() override {
return &fGlyphPainter;
}
private:
GrRenderTargetContext* fRenderTargetContext;
SkGlyphRunListPainter fGlyphPainter;
};
#define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == this->drawingManager()->getContext())
#define ASSERT_SINGLE_OWNER \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(this->singleOwner());)
#define ASSERT_SINGLE_OWNER_PRIV \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fRenderTargetContext->singleOwner());)
#define RETURN_IF_ABANDONED if (fContext->priv().abandoned()) { return; }
#define RETURN_IF_ABANDONED_PRIV if (fRenderTargetContext->fContext->priv().abandoned()) { return; }
#define RETURN_FALSE_IF_ABANDONED if (fContext->priv().abandoned()) { return false; }
#define RETURN_FALSE_IF_ABANDONED_PRIV if (fRenderTargetContext->fContext->priv().abandoned()) { return false; }
#define RETURN_NULL_IF_ABANDONED if (fContext->priv().abandoned()) { return nullptr; }
//////////////////////////////////////////////////////////////////////////////
class AutoCheckFlush {
public:
AutoCheckFlush(GrDrawingManager* drawingManager) : fDrawingManager(drawingManager) {
SkASSERT(fDrawingManager);
}
~AutoCheckFlush() { fDrawingManager->flushIfNecessary(); }
private:
GrDrawingManager* fDrawingManager;
};
// In MDB mode the reffing of the 'getLastOpsTask' call's result allows in-progress
// GrOpsTask to be picked up and added to by renderTargetContexts lower in the call
// stack. When this occurs with a closed GrOpsTask, a new one will be allocated
// when the renderTargetContext attempts to use it (via getOpsTask).
GrRenderTargetContext::GrRenderTargetContext(GrRecordingContext* context,
sk_sp<GrRenderTargetProxy> rtp,
GrColorType colorType,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* surfaceProps,
bool managedOpsTask)
: GrSurfaceContext(context, colorType, kPremul_SkAlphaType, std::move(colorSpace))
, fRenderTargetProxy(std::move(rtp))
, fOpsTask(sk_ref_sp(fRenderTargetProxy->getLastOpsTask()))
, fSurfaceProps(SkSurfacePropsCopyOrDefault(surfaceProps))
, fManagedOpsTask(managedOpsTask) {
fTextTarget.reset(new TextTarget(this));
SkDEBUGCODE(this->validate();)
}
#ifdef SK_DEBUG
void GrRenderTargetContext::validate() const {
SkASSERT(fRenderTargetProxy);
fRenderTargetProxy->validate(fContext);
SkASSERT(fContext->priv().caps()->areColorTypeAndFormatCompatible(
this->colorInfo().colorType(), fRenderTargetProxy->backendFormat()));
if (fOpsTask && !fOpsTask->isClosed()) {
SkASSERT(fRenderTargetProxy->getLastRenderTask() == fOpsTask.get());
}
}
#endif
GrRenderTargetContext::~GrRenderTargetContext() {
ASSERT_SINGLE_OWNER
}
inline GrAAType GrRenderTargetContext::chooseAAType(GrAA aa) {
if (GrAA::kNo == aa) {
// On some devices we cannot disable MSAA if it is enabled so we make the AA type reflect
// that.
if (this->numSamples() > 1 && !this->caps()->multisampleDisableSupport()) {
return GrAAType::kMSAA;
}
return GrAAType::kNone;
}
return (this->numSamples() > 1) ? GrAAType::kMSAA : GrAAType::kCoverage;
}
GrTextureProxy* GrRenderTargetContext::asTextureProxy() {
return fRenderTargetProxy->asTextureProxy();
}
const GrTextureProxy* GrRenderTargetContext::asTextureProxy() const {
return fRenderTargetProxy->asTextureProxy();
}
sk_sp<GrTextureProxy> GrRenderTargetContext::asTextureProxyRef() {
return sk_ref_sp(fRenderTargetProxy->asTextureProxy());
}
GrMipMapped GrRenderTargetContext::mipMapped() const {
if (const GrTextureProxy* proxy = this->asTextureProxy()) {
return proxy->mipMapped();
}
return GrMipMapped::kNo;
}
GrOpsTask* GrRenderTargetContext::getOpsTask() {
ASSERT_SINGLE_OWNER
SkDEBUGCODE(this->validate();)
if (!fOpsTask || fOpsTask->isClosed()) {
sk_sp<GrOpsTask> newOpsTask =
this->drawingManager()->newOpsTask(fRenderTargetProxy, fManagedOpsTask);
if (fOpsTask && fNumStencilSamples > 0) {
// Store the stencil values in memory upon completion of fOpsTask.
fOpsTask->setMustPreserveStencil();
// Reload the stencil buffer content at the beginning of newOpsTask.
// FIXME: Could the topo sort insert a task between these two that modifies the stencil
// values?
newOpsTask->setInitialStencilContent(GrOpsTask::StencilContent::kPreserved);
}
fOpsTask = std::move(newOpsTask);
}
return fOpsTask.get();
}
void GrRenderTargetContext::drawGlyphRunList(
const GrClip& clip, const SkMatrix& viewMatrix,
const SkGlyphRunList& blob) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawGlyphRunList", fContext);
// Drawing text can cause us to do inline uploads. This is not supported for wrapped vulkan
// secondary command buffers because it would require stopping and starting a render pass which
// we don't have access to.
if (this->wrapsVkSecondaryCB()) {
return;
}
GrTextContext* atlasTextContext = this->drawingManager()->getTextContext();
atlasTextContext->drawGlyphRunList(fContext, fTextTarget.get(), clip, viewMatrix,
fSurfaceProps, blob);
}
void GrRenderTargetContext::discard() {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "discard", fContext);
AutoCheckFlush acf(this->drawingManager());
this->getOpsTask()->discard();
}
void GrRenderTargetContext::clear(const SkIRect* rect,
const SkPMColor4f& color,
CanClearFullscreen canClearFullscreen) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "clear", fContext);
AutoCheckFlush acf(this->drawingManager());
this->internalClear(rect ? GrFixedClip(*rect) : GrFixedClip::Disabled(), color,
canClearFullscreen);
}
void GrRenderTargetContextPriv::clear(const GrFixedClip& clip,
const SkPMColor4f& color,
CanClearFullscreen canClearFullscreen) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "clear",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
fRenderTargetContext->internalClear(clip, color, canClearFullscreen);
}
static void clear_to_grpaint(const SkPMColor4f& color, GrPaint* paint) {
paint->setColor4f(color);
if (color.isOpaque()) {
// Can just rely on the src-over blend mode to do the right thing
paint->setPorterDuffXPFactory(SkBlendMode::kSrcOver);
} else {
// A clear overwrites the prior color, so even if it's transparent, it behaves as if it
// were src blended
paint->setPorterDuffXPFactory(SkBlendMode::kSrc);
}
}
void GrRenderTargetContext::internalClear(const GrFixedClip& clip,
const SkPMColor4f& color,
CanClearFullscreen canClearFullscreen) {
bool isFull = false;
if (!clip.hasWindowRectangles()) {
// TODO: wrt the shouldInitializeTextures path, it would be more performant to
// only clear the entire target if we knew it had not been cleared before. As
// is this could end up doing a lot of redundant clears.
isFull = !clip.scissorEnabled() ||
(CanClearFullscreen::kYes == canClearFullscreen &&
(this->caps()->preferFullscreenClears() || this->caps()->shouldInitializeTextures())) ||
clip.scissorRect().contains(SkIRect::MakeWH(this->width(), this->height()));
}
if (isFull) {
GrOpsTask* opsTask = this->getOpsTask();
if (opsTask->resetForFullscreenClear(this->canDiscardPreviousOpsOnFullClear()) &&
!this->caps()->performColorClearsAsDraws()) {
// The op list was emptied and native clears are allowed, so just use the load op
opsTask->setColorLoadOp(GrLoadOp::kClear, color);
return;
} else {
// Will use an op for the clear, reset the load op to discard since the op will
// blow away the color buffer contents
opsTask->setColorLoadOp(GrLoadOp::kDiscard);
}
// Must add an op to the list (either because we couldn't use a load op, or because the
// clear load op isn't supported)
if (this->caps()->performColorClearsAsDraws()) {
SkRect rtRect = SkRect::MakeWH(this->width(), this->height());
GrPaint paint;
clear_to_grpaint(color, &paint);
this->addDrawOp(GrFixedClip::Disabled(),
GrFillRectOp::MakeNonAARect(fContext, std::move(paint), SkMatrix::I(),
rtRect));
} else {
this->addOp(GrClearOp::Make(
fContext, SkIRect::MakeEmpty(), color, /* fullscreen */ true));
}
} else {
if (this->caps()->performPartialClearsAsDraws()) {
// performPartialClearsAsDraws() also returns true if any clear has to be a draw.
GrPaint paint;
clear_to_grpaint(color, &paint);
this->addDrawOp(clip,
GrFillRectOp::MakeNonAARect(fContext, std::move(paint), SkMatrix::I(),
SkRect::Make(clip.scissorRect())));
} else {
std::unique_ptr<GrOp> op(GrClearOp::Make(fContext, clip, color,
this->asSurfaceProxy()));
// This version of the clear op factory can return null if the clip doesn't intersect
// with the surface proxy's boundary
if (!op) {
return;
}
this->addOp(std::move(op));
}
}
}
void GrRenderTargetContext::drawPaint(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix) {
// Start with the render target, since that is the maximum content we could possibly fill.
// drawFilledQuad() will automatically restrict it to clip bounds for us if possible.
SkRect r = fRenderTargetProxy->getBoundsRect();
if (!paint.numTotalFragmentProcessors()) {
// The paint is trivial so we won't need to use local coordinates, so skip calculating the
// inverse view matrix.
this->fillRectToRect(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), r, r);
} else {
// Use the inverse view matrix to arrive at appropriate local coordinates for the paint.
SkMatrix localMatrix;
if (!viewMatrix.invert(&localMatrix)) {
return;
}
this->fillRectWithLocalMatrix(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), r,
localMatrix);
}
}
enum class GrRenderTargetContext::QuadOptimization {
// The rect to draw doesn't intersect clip or render target, so no draw op should be added
kDiscarded,
// The rect to draw was converted to some other op and appended to the oplist, so no additional
// op is necessary. Currently this can convert it to a clear op or a rrect op. Only valid if
// a constColor is provided.
kSubmitted,
// The clip was folded into the device quad, with updated edge flags and local coords, and
// caller is responsible for adding an appropriate op.
kClipApplied,
// No change to clip, but quad updated to better fit clip/render target, and caller is
// responsible for adding an appropriate op.
kCropped
};
static bool make_vertex_finite(float* value) {
if (SkScalarIsNaN(*value)) {
return false;
}
if (!SkScalarIsFinite(*value)) {
// +/- infinity at this point. Don't use exactly SK_ScalarMax so that we have some precision
// left when calculating crops.
static constexpr float kNearInfinity = SK_ScalarMax / 4.f;
*value = *value < 0.f ? -kNearInfinity : kNearInfinity;
}
return true;
}
GrRenderTargetContext::QuadOptimization GrRenderTargetContext::attemptQuadOptimization(
const GrClip& clip, const SkPMColor4f* constColor,
const GrUserStencilSettings* stencilSettings, GrAA* aa, GrQuadAAFlags* edgeFlags,
GrQuad* deviceQuad, GrQuad* localQuad) {
// Optimization requirements:
// 1. kDiscard applies when clip bounds and quad bounds do not intersect
// 2. kClear applies when constColor and final geom is pixel aligned rect;
// pixel aligned rect requires rect clip and (rect quad or quad covers clip)
// 3. kRRect applies when constColor and rrect clip and quad covers clip
// 4. kExplicitClip applies when rect clip and (rect quad or quad covers clip)
// 5. kCropped applies when rect quad (currently)
// 6. kNone always applies
GrQuadAAFlags newFlags = *edgeFlags;
SkRect rtRect;
if (stencilSettings) {
// Must use worst case bounds so that stencil buffer updates on approximately sized render
// targets don't get corrupted.
rtRect = SkRect::MakeWH(fRenderTargetProxy->worstCaseWidth(),
fRenderTargetProxy->worstCaseHeight());
} else {
// Use the logical size of the render target, which allows for "fullscreen" clears even if
// the render target has an approximate backing fit
rtRect = SkRect::MakeWH(this->width(), this->height());
}
SkRect drawBounds = deviceQuad->bounds();
if (constColor) {
// Don't bother updating local coordinates when the paint will ignore them anyways
localQuad = nullptr;
// If the device quad is not finite, coerce into a finite quad. This is acceptable since it
// will be cropped to the finite 'clip' or render target and there is no local space mapping
if (!deviceQuad->isFinite()) {
for (int i = 0; i < 4; ++i) {
if (!make_vertex_finite(deviceQuad->xs() + i) ||
!make_vertex_finite(deviceQuad->ys() + i) ||
!make_vertex_finite(deviceQuad->ws() + i)) {
// Discard if we see a nan
return QuadOptimization::kDiscarded;
}
}
SkASSERT(deviceQuad->isFinite());
}
} else {
// CropToRect requires the quads to be finite. If they are not finite and we have local
// coordinates, the mapping from local space to device space is poorly defined so drop it
if (!deviceQuad->isFinite()) {
return QuadOptimization::kDiscarded;
}
}
// If the quad is entirely off screen, it doesn't matter what the clip does
if (!rtRect.intersects(drawBounds)) {
return QuadOptimization::kDiscarded;
}
// Check if clip can be represented as a rounded rect (initialize as if clip fully contained
// the render target).
SkRRect clipRRect = SkRRect::MakeRect(rtRect);
// We initialize clipAA to *aa when there are stencil settings so that we don't artificially
// encounter mixed-aa edges (not allowed for stencil), but we want to start as non-AA for
// regular draws so that if we fully cover the render target, that can stop being anti-aliased.
GrAA clipAA = stencilSettings ? *aa : GrAA::kNo;
bool axisAlignedClip = true;
if (!clip.quickContains(rtRect)) {
if (!clip.isRRect(rtRect, &clipRRect, &clipAA)) {
axisAlignedClip = false;
}
}
// If the clip rrect is valid (i.e. axis-aligned), we can potentially combine it with the
// draw geometry so that no clip is needed when drawing.
if (axisAlignedClip && (!stencilSettings || clipAA == *aa)) {
// Tighten clip bounds (if clipRRect.isRect() is true, clipBounds now holds the intersection
// of the render target and the clip rect)
SkRect clipBounds = rtRect;
if (!clipBounds.intersect(clipRRect.rect()) || !clipBounds.intersects(drawBounds)) {
return QuadOptimization::kDiscarded;
}
if (clipRRect.isRect()) {
// No rounded corners, so the kClear and kExplicitClip optimizations are possible
if (GrQuadUtils::CropToRect(clipBounds, clipAA, &newFlags, deviceQuad, localQuad)) {
if (constColor && deviceQuad->quadType() == GrQuad::Type::kAxisAligned) {
// Clear optimization is possible
drawBounds = deviceQuad->bounds();
if (drawBounds.contains(rtRect)) {
// Fullscreen clear
this->clear(nullptr, *constColor, CanClearFullscreen::kYes);
return QuadOptimization::kSubmitted;
} else if (GrClip::IsPixelAligned(drawBounds) &&
drawBounds.width() > 256 && drawBounds.height() > 256) {
// Scissor + clear (round shouldn't do anything since we are pixel aligned)
SkIRect scissorRect;
drawBounds.round(&scissorRect);
this->clear(&scissorRect, *constColor, CanClearFullscreen::kNo);
return QuadOptimization::kSubmitted;
}
}
// Update overall AA setting.
*edgeFlags = newFlags;
if (*aa == GrAA::kNo && clipAA == GrAA::kYes &&
newFlags != GrQuadAAFlags::kNone) {
// The clip was anti-aliased and now the draw needs to be upgraded to AA to
// properly reflect the smooth edge of the clip.
*aa = GrAA::kYes;
}
// We intentionally do not downgrade AA here because we don't know if we need to
// preserve MSAA (see GrQuadAAFlags docs). But later in the pipeline, the ops can
// use GrResolveAATypeForQuad() to turn off coverage AA when all flags are off.
// deviceQuad is exactly the intersection of original quad and clip, so it can be
// drawn with no clip (submitted by caller)
return QuadOptimization::kClipApplied;
} else {
// The quads have been updated to better fit the clip bounds, but can't get rid of
// the clip entirely
return QuadOptimization::kCropped;
}
} else if (constColor) {
// Rounded corners and constant filled color (limit ourselves to solid colors because
// there is no way to use custom local coordinates with drawRRect).
if (GrQuadUtils::CropToRect(clipBounds, clipAA, &newFlags, deviceQuad, localQuad) &&
deviceQuad->quadType() == GrQuad::Type::kAxisAligned &&
deviceQuad->bounds().contains(clipBounds)) {
// Since the cropped quad became a rectangle which covered the bounds of the rrect,
// we can draw the rrect directly and ignore the edge flags
GrPaint paint;
clear_to_grpaint(*constColor, &paint);
this->drawRRect(GrFixedClip::Disabled(), std::move(paint), clipAA, SkMatrix::I(),
clipRRect, GrStyle::SimpleFill());
return QuadOptimization::kSubmitted;
} else {
// The quad has been updated to better fit clip bounds, but can't remove the clip
return QuadOptimization::kCropped;
}
}
}
// Crop the quad to the conservative bounds of the clip.
SkIRect clipDevBounds;
clip.getConservativeBounds(rtRect.width(), rtRect.height(), &clipDevBounds);
SkRect clipBounds = SkRect::Make(clipDevBounds);
// One final check for discarding, since we may have gone here directly due to a complex clip
if (!clipBounds.intersects(drawBounds)) {
return QuadOptimization::kDiscarded;
}
// Even if this were to return true, the crop rect does not exactly match the clip, so can not
// report explicit-clip. Since these edges aren't visible, don't update the final edge flags.
GrQuadUtils::CropToRect(clipBounds, clipAA, &newFlags, deviceQuad, localQuad);
return QuadOptimization::kCropped;
}
void GrRenderTargetContext::drawFilledQuad(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
GrQuadAAFlags edgeFlags,
const GrQuad& deviceQuad,
const GrQuad& localQuad,
const GrUserStencilSettings* ss) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawFilledQuad", fContext);
AutoCheckFlush acf(this->drawingManager());
SkPMColor4f* constColor = nullptr;
SkPMColor4f paintColor;
if (!ss && !paint.numCoverageFragmentProcessors() &&
paint.isConstantBlendedColor(&paintColor)) {
// Only consider clears/rrects when it's easy to guarantee 100% fill with single color
constColor = &paintColor;
}
GrQuad croppedDeviceQuad = deviceQuad;
GrQuad croppedLocalQuad = localQuad;
QuadOptimization opt = this->attemptQuadOptimization(clip, constColor, ss, &aa, &edgeFlags,
&croppedDeviceQuad, &croppedLocalQuad);
if (opt >= QuadOptimization::kClipApplied) {
// These optimizations require caller to add an op themselves
const GrClip& finalClip = opt == QuadOptimization::kClipApplied ? GrFixedClip::Disabled()
: clip;
GrAAType aaType = ss ? (aa == GrAA::kYes ? GrAAType::kMSAA : GrAAType::kNone)
: this->chooseAAType(aa);
this->addDrawOp(finalClip, GrFillRectOp::Make(fContext, std::move(paint), aaType, edgeFlags,
croppedDeviceQuad, croppedLocalQuad, ss));
}
// All other optimization levels were completely handled inside attempt(), so no extra op needed
}
void GrRenderTargetContext::drawTexturedQuad(const GrClip& clip,
sk_sp<GrTextureProxy> proxy,
GrColorType srcColorType,
sk_sp<GrColorSpaceXform> textureXform,
GrSamplerState::Filter filter,
const SkPMColor4f& color,
SkBlendMode blendMode,
GrAA aa,
GrQuadAAFlags edgeFlags,
const GrQuad& deviceQuad,
const GrQuad& localQuad,
const SkRect* domain) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
SkASSERT(proxy);
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawTexturedQuad", fContext);
AutoCheckFlush acf(this->drawingManager());
// Functionally this is very similar to drawFilledQuad except that there's no constColor to
// enable the kSubmitted optimizations, no stencil settings support, and its a GrTextureOp.
GrQuad croppedDeviceQuad = deviceQuad;
GrQuad croppedLocalQuad = localQuad;
QuadOptimization opt = this->attemptQuadOptimization(clip, nullptr, nullptr, &aa, &edgeFlags,
&croppedDeviceQuad, &croppedLocalQuad);
SkASSERT(opt != QuadOptimization::kSubmitted);
if (opt != QuadOptimization::kDiscarded) {
// And the texture op if not discarded
const GrClip& finalClip = opt == QuadOptimization::kClipApplied ? GrFixedClip::Disabled()
: clip;
GrAAType aaType = this->chooseAAType(aa);
auto clampType = GrColorTypeClampType(this->colorInfo().colorType());
auto saturate = clampType == GrClampType::kManual ? GrTextureOp::Saturate::kYes
: GrTextureOp::Saturate::kNo;
// Use the provided domain, although hypothetically we could detect that the cropped local
// quad is sufficiently inside the domain and the constraint could be dropped.
this->addDrawOp(finalClip,
GrTextureOp::Make(fContext, std::move(proxy), srcColorType,
std::move(textureXform), filter, color, saturate,
blendMode, aaType, edgeFlags, croppedDeviceQuad,
croppedLocalQuad, domain));
}
}
void GrRenderTargetContext::drawRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rect,
const GrStyle* style) {
if (!style) {
style = &GrStyle::SimpleFill();
}
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRect", fContext);
// Path effects should've been devolved to a path in SkGpuDevice
SkASSERT(!style->pathEffect());
AutoCheckFlush acf(this->drawingManager());
const SkStrokeRec& stroke = style->strokeRec();
if (stroke.getStyle() == SkStrokeRec::kFill_Style) {
// Fills the rect, using rect as its own local coordinates
this->fillRectToRect(clip, std::move(paint), aa, viewMatrix, rect, rect);
return;
} else if (stroke.getStyle() == SkStrokeRec::kStroke_Style ||
stroke.getStyle() == SkStrokeRec::kHairline_Style) {
if ((!rect.width() || !rect.height()) &&
SkStrokeRec::kHairline_Style != stroke.getStyle()) {
SkScalar r = stroke.getWidth() / 2;
// TODO: Move these stroke->fill fallbacks to GrShape?
switch (stroke.getJoin()) {
case SkPaint::kMiter_Join:
this->drawRect(
clip, std::move(paint), aa, viewMatrix,
{rect.fLeft - r, rect.fTop - r, rect.fRight + r, rect.fBottom + r},
&GrStyle::SimpleFill());
return;
case SkPaint::kRound_Join:
// Raster draws nothing when both dimensions are empty.
if (rect.width() || rect.height()){
SkRRect rrect = SkRRect::MakeRectXY(rect.makeOutset(r, r), r, r);
this->drawRRect(clip, std::move(paint), aa, viewMatrix, rrect,
GrStyle::SimpleFill());
return;
}
case SkPaint::kBevel_Join:
if (!rect.width()) {
this->drawRect(clip, std::move(paint), aa, viewMatrix,
{rect.fLeft - r, rect.fTop, rect.fRight + r, rect.fBottom},
&GrStyle::SimpleFill());
} else {
this->drawRect(clip, std::move(paint), aa, viewMatrix,
{rect.fLeft, rect.fTop - r, rect.fRight, rect.fBottom + r},
&GrStyle::SimpleFill());
}
return;
}
}
std::unique_ptr<GrDrawOp> op;
GrAAType aaType = this->chooseAAType(aa);
op = GrStrokeRectOp::Make(fContext, std::move(paint), aaType, viewMatrix, rect, stroke);
// op may be null if the stroke is not supported or if using coverage aa and the view matrix
// does not preserve rectangles.
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
assert_alive(paint);
this->drawShapeUsingPathRenderer(clip, std::move(paint), aa, viewMatrix, GrShape(rect, *style));
}
void GrRenderTargetContext::drawQuadSet(const GrClip& clip, GrPaint&& paint, GrAA aa,
const SkMatrix& viewMatrix, const QuadSetEntry quads[],
int cnt) {
GrAAType aaType = this->chooseAAType(aa);
this->addDrawOp(clip, GrFillRectOp::MakeSet(fContext, std::move(paint), aaType, viewMatrix,
quads, cnt));
}
int GrRenderTargetContextPriv::maxWindowRectangles() const {
return fRenderTargetContext->fRenderTargetProxy->maxWindowRectangles(
*fRenderTargetContext->caps());
}
GrOpsTask::CanDiscardPreviousOps GrRenderTargetContext::canDiscardPreviousOpsOnFullClear(
) const {
#if GR_TEST_UTILS
if (fPreserveOpsOnFullClear_TestingOnly) {
return GrOpsTask::CanDiscardPreviousOps::kNo;
}
#endif
// Regardless of how the clear is implemented (native clear or a fullscreen quad), all prior ops
// would normally be overwritten. The one exception is if the render target context is marked as
// needing a stencil buffer then there may be a prior op that writes to the stencil buffer.
// Although the clear will ignore the stencil buffer, following draw ops may not so we can't get
// rid of all the preceding ops. Beware! If we ever add any ops that have a side effect beyond
// modifying the stencil buffer we will need a more elaborate tracking system (skbug.com/7002).
return GrOpsTask::CanDiscardPreviousOps(!fNumStencilSamples);
}
void GrRenderTargetContext::setNeedsStencil(bool useMixedSamplesIfNotMSAA) {
// Don't clear stencil until after we've changed fNumStencilSamples. This ensures we don't loop
// forever in the event that there are driver bugs and we need to clear as a draw.
bool hasInitializedStencil = fNumStencilSamples > 0;
int numRequiredSamples = this->numSamples();
if (useMixedSamplesIfNotMSAA && 1 == numRequiredSamples) {
SkASSERT(fRenderTargetProxy->canUseMixedSamples(*this->caps()));
numRequiredSamples = this->caps()->internalMultisampleCount(
this->asSurfaceProxy()->backendFormat());
}
SkASSERT(numRequiredSamples > 0);
if (numRequiredSamples > fNumStencilSamples) {
fNumStencilSamples = numRequiredSamples;
fRenderTargetProxy->setNeedsStencil(fNumStencilSamples);
}
if (!hasInitializedStencil) {
if (this->caps()->performStencilClearsAsDraws()) {
// There is a driver bug with clearing stencil. We must use an op to manually clear the
// stencil buffer before the op that required 'setNeedsStencil'.
this->internalStencilClear(GrFixedClip::Disabled(), /* inside mask */ false);
} else {
this->getOpsTask()->setInitialStencilContent(
GrOpsTask::StencilContent::kUserBitsCleared);
}
}
}
void GrRenderTargetContextPriv::clearStencilClip(const GrFixedClip& clip, bool insideStencilMask) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "clearStencilClip",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
fRenderTargetContext->internalStencilClear(clip, insideStencilMask);
}
void GrRenderTargetContext::internalStencilClear(const GrFixedClip& clip, bool insideStencilMask) {
this->setNeedsStencil(/* useMixedSamplesIfNotMSAA = */ false);
if (this->caps()->performStencilClearsAsDraws()) {
const GrUserStencilSettings* ss = GrStencilSettings::SetClipBitSettings(insideStencilMask);
SkRect rtRect = SkRect::MakeWH(this->width(), this->height());
// Configure the paint to have no impact on the color buffer
GrPaint paint;
paint.setXPFactory(GrDisableColorXPFactory::Get());
this->addDrawOp(clip, GrFillRectOp::MakeNonAARect(fContext, std::move(paint), SkMatrix::I(),
rtRect, ss));
} else {
std::unique_ptr<GrOp> op(GrClearStencilClipOp::Make(fContext, clip, insideStencilMask,
fRenderTargetProxy.get()));
if (!op) {
return;
}
this->addOp(std::move(op));
}
}
void GrRenderTargetContextPriv::stencilPath(const GrHardClip& clip,
GrAA doStencilMSAA,
const SkMatrix& viewMatrix,
sk_sp<const GrPath> path) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "stencilPath",
fRenderTargetContext->fContext);
// TODO: extract portions of checkDraw that are relevant to path stenciling.
SkASSERT(path);
SkASSERT(fRenderTargetContext->caps()->shaderCaps()->pathRenderingSupport());
// FIXME: Use path bounds instead of this WAR once
// https://bugs.chromium.org/p/skia/issues/detail?id=5640 is resolved.
SkRect bounds = SkRect::MakeIWH(fRenderTargetContext->width(), fRenderTargetContext->height());
// Setup clip
GrAppliedHardClip appliedClip;
if (!clip.apply(fRenderTargetContext->width(), fRenderTargetContext->height(), &appliedClip,
&bounds)) {
return;
}
std::unique_ptr<GrOp> op = GrStencilPathOp::Make(fRenderTargetContext->fContext,
viewMatrix,
GrAA::kYes == doStencilMSAA,
appliedClip.hasStencilClip(),
appliedClip.scissorState(),
std::move(path));
if (!op) {
return;
}
op->setClippedBounds(bounds);
fRenderTargetContext->setNeedsStencil(GrAA::kYes == doStencilMSAA);
fRenderTargetContext->addOp(std::move(op));
}
void GrRenderTargetContext::drawTextureSet(const GrClip& clip, const TextureSetEntry set[], int cnt,
GrSamplerState::Filter filter, SkBlendMode mode,
GrAA aa, SkCanvas::SrcRectConstraint constraint,
const SkMatrix& viewMatrix,
sk_sp<GrColorSpaceXform> texXform) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawTextureSet", fContext);
if (mode != SkBlendMode::kSrcOver ||
!fContext->priv().caps()->dynamicStateArrayGeometryProcessorTextureSupport()) {
// Draw one at a time since the bulk API doesn't support non src-over blending, or the
// backend can't support the bulk geometry processor yet.
SkMatrix ctm;
for (int i = 0; i < cnt; ++i) {
float alpha = set[i].fAlpha;
ctm = viewMatrix;
if (set[i].fPreViewMatrix) {
ctm.preConcat(*set[i].fPreViewMatrix);
}
GrQuad quad, srcQuad;
if (set[i].fDstClipQuad) {
quad = GrQuad::MakeFromSkQuad(set[i].fDstClipQuad, ctm);
SkPoint srcPts[4];
GrMapRectPoints(set[i].fDstRect, set[i].fSrcRect, set[i].fDstClipQuad, srcPts, 4);
srcQuad = GrQuad::MakeFromSkQuad(srcPts, SkMatrix::I());
} else {
quad = GrQuad::MakeFromRect(set[i].fDstRect, ctm);
srcQuad = GrQuad(set[i].fSrcRect);
}
const SkRect* domain = constraint == SkCanvas::kStrict_SrcRectConstraint
? &set[i].fSrcRect : nullptr;
this->drawTexturedQuad(clip, set[i].fProxy, set[i].fSrcColorType, texXform, filter,
{alpha, alpha, alpha, alpha}, mode, aa, set[i].fAAFlags,
quad, srcQuad, domain);
}
} else {
// Can use a single op, avoiding GrPaint creation, and can batch across proxies
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa);
auto clampType = GrColorTypeClampType(this->colorInfo().colorType());
auto saturate = clampType == GrClampType::kManual ? GrTextureOp::Saturate::kYes
: GrTextureOp::Saturate::kNo;
auto op = GrTextureOp::MakeSet(fContext, set, cnt, filter, saturate, aaType, constraint,
viewMatrix, std::move(texXform));
this->addDrawOp(clip, std::move(op));
}
}
void GrRenderTargetContext::drawVertices(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
sk_sp<SkVertices> vertices,
const SkVertices::Bone bones[],
int boneCount,
GrPrimitiveType* overridePrimType) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawVertices", fContext);
AutoCheckFlush acf(this->drawingManager());
SkASSERT(vertices);
GrAAType aaType = this->chooseAAType(GrAA::kNo);
std::unique_ptr<GrDrawOp> op = GrDrawVerticesOp::Make(
fContext, std::move(paint), std::move(vertices), bones, boneCount, viewMatrix, aaType,
this->colorInfo().refColorSpaceXformFromSRGB(), overridePrimType);
this->addDrawOp(clip, std::move(op));
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawAtlas(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
int spriteCount,
const SkRSXform xform[],
const SkRect texRect[],
const SkColor colors[]) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawAtlas", fContext);
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(GrAA::kNo);
std::unique_ptr<GrDrawOp> op = GrDrawAtlasOp::Make(fContext, std::move(paint), viewMatrix,
aaType, spriteCount, xform, texRect, colors);
this->addDrawOp(clip, std::move(op));
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawRRect(const GrClip& origClip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& rrect,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRRect", fContext);
const SkStrokeRec& stroke = style.strokeRec();
if (stroke.getStyle() == SkStrokeRec::kFill_Style && rrect.isEmpty()) {
return;
}
GrNoClip noclip;
const GrClip* clip = &origClip;
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
// The Android framework frequently clips rrects to themselves where the clip is non-aa and the
// draw is aa. Since our lower level clip code works from op bounds, which are SkRects, it
// doesn't detect that the clip can be ignored (modulo antialiasing). The following test
// attempts to mitigate the stencil clip cost but will only help when the entire clip stack
// can be ignored. We'd prefer to fix this in the framework by removing the clips calls. This
// only works for filled rrects since the stroke width outsets beyond the rrect itself.
SkRRect devRRect;
if (stroke.getStyle() == SkStrokeRec::kFill_Style && rrect.transform(viewMatrix, &devRRect) &&
clip->quickContains(devRRect)) {
clip = &noclip;
}
#endif
SkASSERT(!style.pathEffect()); // this should've been devolved to a path in SkGpuDevice
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa);
std::unique_ptr<GrDrawOp> op;
if (GrAAType::kCoverage == aaType && rrect.isSimple() &&
rrect.getSimpleRadii().fX == rrect.getSimpleRadii().fY &&
viewMatrix.rectStaysRect() && viewMatrix.isSimilarity()) {
// In coverage mode, we draw axis-aligned circular roundrects with the GrOvalOpFactory
// to avoid perf regressions on some platforms.
assert_alive(paint);
op = GrOvalOpFactory::MakeCircularRRectOp(
fContext, std::move(paint), viewMatrix, rrect, stroke, this->caps()->shaderCaps());
}
if (!op && style.isSimpleFill()) {
assert_alive(paint);
op = GrFillRRectOp::Make(
fContext, aaType, viewMatrix, rrect, *this->caps(), std::move(paint));
}
if (!op && GrAAType::kCoverage == aaType) {
assert_alive(paint);
op = GrOvalOpFactory::MakeRRectOp(
fContext, std::move(paint), viewMatrix, rrect, stroke, this->caps()->shaderCaps());
}
if (op) {
this->addDrawOp(*clip, std::move(op));
return;
}
assert_alive(paint);
this->drawShapeUsingPathRenderer(*clip, std::move(paint), aa, viewMatrix,
GrShape(rrect, style));
}
///////////////////////////////////////////////////////////////////////////////
static SkPoint3 map(const SkMatrix& m, const SkPoint3& pt) {
SkPoint3 result;
m.mapXY(pt.fX, pt.fY, (SkPoint*)&result.fX);
result.fZ = pt.fZ;
return result;
}
bool GrRenderTargetContext::drawFastShadow(const GrClip& clip,
const SkMatrix& viewMatrix,
const SkPath& path,
const SkDrawShadowRec& rec) {
ASSERT_SINGLE_OWNER
if (fContext->priv().abandoned()) {
return true;
}
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawFastShadow", fContext);
// check z plane
bool tiltZPlane = SkToBool(!SkScalarNearlyZero(rec.fZPlaneParams.fX) ||
!SkScalarNearlyZero(rec.fZPlaneParams.fY));
bool skipAnalytic = SkToBool(rec.fFlags & SkShadowFlags::kGeometricOnly_ShadowFlag);
if (tiltZPlane || skipAnalytic || !viewMatrix.rectStaysRect() || !viewMatrix.isSimilarity()) {
return false;
}
SkRRect rrect;
SkRect rect;
// we can only handle rects, circles, and rrects with circular corners
bool isRRect = path.isRRect(&rrect) && SkRRectPriv::IsSimpleCircular(rrect) &&
rrect.radii(SkRRect::kUpperLeft_Corner).fX > SK_ScalarNearlyZero;
if (!isRRect &&
path.isOval(&rect) && SkScalarNearlyEqual(rect.width(), rect.height()) &&
rect.width() > SK_ScalarNearlyZero) {
rrect.setOval(rect);
isRRect = true;
}
if (!isRRect && path.isRect(&rect)) {
rrect.setRect(rect);
isRRect = true;
}
if (!isRRect) {
return false;
}
if (rrect.isEmpty()) {
return true;
}
AutoCheckFlush acf(this->drawingManager());
// transform light
SkPoint3 devLightPos = map(viewMatrix, rec.fLightPos);
// 1/scale
SkScalar devToSrcScale = viewMatrix.isScaleTranslate() ?
SkScalarInvert(SkScalarAbs(viewMatrix[SkMatrix::kMScaleX])) :
sk_float_rsqrt(viewMatrix[SkMatrix::kMScaleX] * viewMatrix[SkMatrix::kMScaleX] +
viewMatrix[SkMatrix::kMSkewX] * viewMatrix[SkMatrix::kMSkewX]);
SkScalar occluderHeight = rec.fZPlaneParams.fZ;
bool transparent = SkToBool(rec.fFlags & SkShadowFlags::kTransparentOccluder_ShadowFlag);
if (SkColorGetA(rec.fAmbientColor) > 0) {
SkScalar devSpaceInsetWidth = SkDrawShadowMetrics::AmbientBlurRadius(occluderHeight);
const SkScalar umbraRecipAlpha = SkDrawShadowMetrics::AmbientRecipAlpha(occluderHeight);
const SkScalar devSpaceAmbientBlur = devSpaceInsetWidth * umbraRecipAlpha;
// Outset the shadow rrect to the border of the penumbra
SkScalar ambientPathOutset = devSpaceInsetWidth * devToSrcScale;
SkRRect ambientRRect;
SkRect outsetRect = rrect.rect().makeOutset(ambientPathOutset, ambientPathOutset);
// If the rrect was an oval then its outset will also be one.
// We set it explicitly to avoid errors.
if (rrect.isOval()) {
ambientRRect = SkRRect::MakeOval(outsetRect);
} else {
SkScalar outsetRad = SkRRectPriv::GetSimpleRadii(rrect).fX + ambientPathOutset;
ambientRRect = SkRRect::MakeRectXY(outsetRect, outsetRad, outsetRad);
}
GrColor ambientColor = SkColorToPremulGrColor(rec.fAmbientColor);
if (transparent) {
// set a large inset to force a fill
devSpaceInsetWidth = ambientRRect.width();
}
std::unique_ptr<GrDrawOp> op = GrShadowRRectOp::Make(fContext,
ambientColor,
viewMatrix,
ambientRRect,
devSpaceAmbientBlur,
devSpaceInsetWidth);
if (op) {
this->addDrawOp(clip, std::move(op));
}
}
if (SkColorGetA(rec.fSpotColor) > 0) {
SkScalar devSpaceSpotBlur;
SkScalar spotScale;
SkVector spotOffset;
SkDrawShadowMetrics::GetSpotParams(occluderHeight, devLightPos.fX, devLightPos.fY,
devLightPos.fZ, rec.fLightRadius,
&devSpaceSpotBlur, &spotScale, &spotOffset);
// handle scale of radius due to CTM
const SkScalar srcSpaceSpotBlur = devSpaceSpotBlur * devToSrcScale;
// Adjust translate for the effect of the scale.
spotOffset.fX += spotScale*viewMatrix[SkMatrix::kMTransX];
spotOffset.fY += spotScale*viewMatrix[SkMatrix::kMTransY];
// This offset is in dev space, need to transform it into source space.
SkMatrix ctmInverse;
if (viewMatrix.invert(&ctmInverse)) {
ctmInverse.mapPoints(&spotOffset, 1);
} else {
// Since the matrix is a similarity, this should never happen, but just in case...
SkDebugf("Matrix is degenerate. Will not render spot shadow correctly!\n");
SkASSERT(false);
}
// Compute the transformed shadow rrect
SkRRect spotShadowRRect;
SkMatrix shadowTransform;
shadowTransform.setScaleTranslate(spotScale, spotScale, spotOffset.fX, spotOffset.fY);
rrect.transform(shadowTransform, &spotShadowRRect);
SkScalar spotRadius = SkRRectPriv::GetSimpleRadii(spotShadowRRect).fX;
// Compute the insetWidth
SkScalar blurOutset = srcSpaceSpotBlur;
SkScalar insetWidth = blurOutset;
if (transparent) {
// If transparent, just do a fill
insetWidth += spotShadowRRect.width();
} else {
// For shadows, instead of using a stroke we specify an inset from the penumbra
// border. We want to extend this inset area so that it meets up with the caster
// geometry. The inset geometry will by default already be inset by the blur width.
//
// We compare the min and max corners inset by the radius between the original
// rrect and the shadow rrect. The distance between the two plus the difference
// between the scaled radius and the original radius gives the distance from the
// transformed shadow shape to the original shape in that corner. The max
// of these gives the maximum distance we need to cover.
//
// Since we are outsetting by 1/2 the blur distance, we just add the maxOffset to
// that to get the full insetWidth.
SkScalar maxOffset;
if (rrect.isRect()) {
// Manhattan distance works better for rects
maxOffset = SkTMax(SkTMax(SkTAbs(spotShadowRRect.rect().fLeft -
rrect.rect().fLeft),
SkTAbs(spotShadowRRect.rect().fTop -
rrect.rect().fTop)),
SkTMax(SkTAbs(spotShadowRRect.rect().fRight -
rrect.rect().fRight),
SkTAbs(spotShadowRRect.rect().fBottom -
rrect.rect().fBottom)));
} else {
SkScalar dr = spotRadius - SkRRectPriv::GetSimpleRadii(rrect).fX;
SkPoint upperLeftOffset = SkPoint::Make(spotShadowRRect.rect().fLeft -
rrect.rect().fLeft + dr,
spotShadowRRect.rect().fTop -
rrect.rect().fTop + dr);
SkPoint lowerRightOffset = SkPoint::Make(spotShadowRRect.rect().fRight -
rrect.rect().fRight - dr,
spotShadowRRect.rect().fBottom -
rrect.rect().fBottom - dr);
maxOffset = SkScalarSqrt(SkTMax(SkPointPriv::LengthSqd(upperLeftOffset),
SkPointPriv::LengthSqd(lowerRightOffset))) + dr;
}
insetWidth += SkTMax(blurOutset, maxOffset);
}
// Outset the shadow rrect to the border of the penumbra
SkRect outsetRect = spotShadowRRect.rect().makeOutset(blurOutset, blurOutset);
if (spotShadowRRect.isOval()) {
spotShadowRRect = SkRRect::MakeOval(outsetRect);
} else {
SkScalar outsetRad = spotRadius + blurOutset;
spotShadowRRect = SkRRect::MakeRectXY(outsetRect, outsetRad, outsetRad);
}
GrColor spotColor = SkColorToPremulGrColor(rec.fSpotColor);
std::unique_ptr<GrDrawOp> op = GrShadowRRectOp::Make(fContext,
spotColor,
viewMatrix,
spotShadowRRect,
2.0f * devSpaceSpotBlur,
insetWidth);
if (op) {
this->addDrawOp(clip, std::move(op));
}
}
return true;
}
///////////////////////////////////////////////////////////////////////////////
bool GrRenderTargetContext::drawFilledDRRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& origOuter,
const SkRRect& origInner) {
SkASSERT(!origInner.isEmpty());
SkASSERT(!origOuter.isEmpty());
SkTCopyOnFirstWrite<SkRRect> inner(origInner), outer(origOuter);
GrAAType aaType = this->chooseAAType(aa);
if (GrAAType::kMSAA == aaType) {
return false;
}
if (GrAAType::kCoverage == aaType && SkRRectPriv::IsCircle(*inner)
&& SkRRectPriv::IsCircle(*outer)) {
auto outerR = outer->width() / 2.f;
auto innerR = inner->width() / 2.f;
auto cx = outer->getBounds().fLeft + outerR;
auto cy = outer->getBounds().fTop + outerR;
if (SkScalarNearlyEqual(cx, inner->getBounds().fLeft + innerR) &&
SkScalarNearlyEqual(cy, inner->getBounds().fTop + innerR)) {
auto avgR = (innerR + outerR) / 2.f;
auto circleBounds = SkRect::MakeLTRB(cx - avgR, cy - avgR, cx + avgR, cy + avgR);
SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);
stroke.setStrokeStyle(outerR - innerR);
auto op = GrOvalOpFactory::MakeOvalOp(fContext, std::move(paint), viewMatrix,
circleBounds, GrStyle(stroke, nullptr),
this->caps()->shaderCaps());
if (op) {
this->addDrawOp(clip, std::move(op));
return true;
}
assert_alive(paint);
}
}
GrClipEdgeType innerEdgeType, outerEdgeType;
if (GrAAType::kCoverage == aaType) {
innerEdgeType = GrClipEdgeType::kInverseFillAA;
outerEdgeType = GrClipEdgeType::kFillAA;
} else {
innerEdgeType = GrClipEdgeType::kInverseFillBW;
outerEdgeType = GrClipEdgeType::kFillBW;
}
SkMatrix inverseVM;
if (!viewMatrix.isIdentity()) {
if (!origInner.transform(viewMatrix, inner.writable())) {
return false;
}
if (!origOuter.transform(viewMatrix, outer.writable())) {
return false;
}
if (!viewMatrix.invert(&inverseVM)) {
return false;
}
} else {
inverseVM.reset();
}
const auto& caps = *this->caps()->shaderCaps();
// TODO these need to be a geometry processors
auto innerEffect = GrRRectEffect::Make(innerEdgeType, *inner, caps);
if (!innerEffect) {
return false;
}
auto outerEffect = GrRRectEffect::Make(outerEdgeType, *outer, caps);
if (!outerEffect) {
return false;
}
paint.addCoverageFragmentProcessor(std::move(innerEffect));
paint.addCoverageFragmentProcessor(std::move(outerEffect));
SkRect bounds = outer->getBounds();
if (GrAAType::kCoverage == aaType) {
bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
}
this->fillRectWithLocalMatrix(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), bounds,
inverseVM);
return true;
}
void GrRenderTargetContext::drawDRRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& outer,
const SkRRect& inner) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawDRRect", fContext);
SkASSERT(!outer.isEmpty());
SkASSERT(!inner.isEmpty());
AutoCheckFlush acf(this->drawingManager());
if (this->drawFilledDRRect(clip, std::move(paint), aa, viewMatrix, outer, inner)) {
return;
}
assert_alive(paint);
SkPath path;
path.setIsVolatile(true);
path.addRRect(inner);
path.addRRect(outer);
path.setFillType(SkPath::kEvenOdd_FillType);
this->drawShapeUsingPathRenderer(clip, std::move(paint), aa, viewMatrix, GrShape(path));
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawRegion(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRegion& region,
const GrStyle& style,
const GrUserStencilSettings* ss) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRegion", fContext);
if (GrAA::kYes == aa) {
// GrRegionOp performs no antialiasing but is much faster, so here we check the matrix
// to see whether aa is really required.
if (!SkToBool(viewMatrix.getType() & ~(SkMatrix::kTranslate_Mask)) &&
SkScalarIsInt(viewMatrix.getTranslateX()) &&
SkScalarIsInt(viewMatrix.getTranslateY())) {
aa = GrAA::kNo;
}
}
bool complexStyle = !style.isSimpleFill();
if (complexStyle || GrAA::kYes == aa) {
SkPath path;
region.getBoundaryPath(&path);
path.setIsVolatile(true);
return this->drawPath(clip, std::move(paint), aa, viewMatrix, path, style);
}
GrAAType aaType = this->chooseAAType(GrAA::kNo);
std::unique_ptr<GrDrawOp> op = GrRegionOp::Make(fContext, std::move(paint), viewMatrix, region,
aaType, ss);
this->addDrawOp(clip, std::move(op));
}
void GrRenderTargetContext::drawOval(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& oval,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawOval", fContext);
const SkStrokeRec& stroke = style.strokeRec();
if (oval.isEmpty() && !style.pathEffect()) {
if (stroke.getStyle() == SkStrokeRec::kFill_Style) {
return;
}
this->drawRect(clip, std::move(paint), aa, viewMatrix, oval, &style);
return;
}
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa);
std::unique_ptr<GrDrawOp> op;
if (GrAAType::kCoverage == aaType && oval.width() > SK_ScalarNearlyZero &&
oval.width() == oval.height() && viewMatrix.isSimilarity()) {
// We don't draw true circles as round rects in coverage mode, because it can
// cause perf regressions on some platforms as compared to the dedicated circle Op.
assert_alive(paint);
op = GrOvalOpFactory::MakeCircleOp(fContext, std::move(paint), viewMatrix, oval, style,
this->caps()->shaderCaps());
}
if (!op && style.isSimpleFill()) {
// GrFillRRectOp has special geometry and a fragment-shader branch to conditionally evaluate
// the arc equation. This same special geometry and fragment branch also turn out to be a
// substantial optimization for drawing ovals (namely, by not evaluating the arc equation
// inside the oval's inner diamond). Given these optimizations, it's a clear win to draw
// ovals the exact same way we do round rects.
assert_alive(paint);
op = GrFillRRectOp::Make(fContext, aaType, viewMatrix, SkRRect::MakeOval(oval),
*this->caps(), std::move(paint));
}
if (!op && GrAAType::kCoverage == aaType) {
assert_alive(paint);
op = GrOvalOpFactory::MakeOvalOp(fContext, std::move(paint), viewMatrix, oval, style,
this->caps()->shaderCaps());
}
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
assert_alive(paint);
this->drawShapeUsingPathRenderer(
clip, std::move(paint), aa, viewMatrix,
GrShape(SkRRect::MakeOval(oval), SkPath::kCW_Direction, 2, false, style));
}
void GrRenderTargetContext::drawArc(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& oval,
SkScalar startAngle,
SkScalar sweepAngle,
bool useCenter,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawArc", fContext);
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa);
if (GrAAType::kCoverage == aaType) {
const GrShaderCaps* shaderCaps = this->caps()->shaderCaps();
std::unique_ptr<GrDrawOp> op = GrOvalOpFactory::MakeArcOp(fContext,
std::move(paint),
viewMatrix,
oval,
startAngle,
sweepAngle,
useCenter,
style,
shaderCaps);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
assert_alive(paint);
}
this->drawShapeUsingPathRenderer(
clip, std::move(paint), aa, viewMatrix,
GrShape::MakeArc(oval, startAngle, sweepAngle, useCenter, style));
}
void GrRenderTargetContext::drawImageLattice(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
sk_sp<GrTextureProxy> image,
GrColorType srcColorType,
sk_sp<GrColorSpaceXform> csxf,
GrSamplerState::Filter filter,
std::unique_ptr<SkLatticeIter> iter,
const SkRect& dst) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawImageLattice", fContext);
AutoCheckFlush acf(this->drawingManager());
std::unique_ptr<GrDrawOp> op =
GrLatticeOp::MakeNonAA(fContext, std::move(paint), viewMatrix, std::move(image),
srcColorType, std::move(csxf), filter, std::move(iter), dst);
this->addDrawOp(clip, std::move(op));
}
void GrRenderTargetContext::drawDrawable(std::unique_ptr<SkDrawable::GpuDrawHandler> drawable,
const SkRect& bounds) {
std::unique_ptr<GrOp> op(GrDrawableOp::Make(fContext, std::move(drawable), bounds));
SkASSERT(op);
this->addOp(std::move(op));
}
void GrRenderTargetContext::asyncRescaleAndReadPixels(
const SkImageInfo& info, const SkIRect& srcRect, SkSurface::RescaleGamma rescaleGamma,
SkFilterQuality rescaleQuality, ReadPixelsCallback callback, ReadPixelsContext context) {
auto direct = fContext->priv().asDirectContext();
if (!direct) {
callback(context, nullptr);
return;
}
if (fRenderTargetProxy->wrapsVkSecondaryCB()) {
callback(context, nullptr);
return;
}
auto dstCT = SkColorTypeToGrColorType(info.colorType());
// TODO: Support reading to gray.
if (dstCT == GrColorType::kUnknown ||
GrColorTypeComponentFlags(dstCT) & kGray_SkColorTypeComponentFlag) {
callback(context, nullptr);
return;
}
bool needsRescale = srcRect.width() != info.width() || srcRect.height() != info.height();
auto colorTypeOfFinalContext = this->colorInfo().colorType();
auto backendFormatOfFinalContext = fRenderTargetProxy->backendFormat();
if (needsRescale) {
colorTypeOfFinalContext = dstCT;
backendFormatOfFinalContext = this->caps()->getDefaultBackendFormat(dstCT,
GrRenderable::kYes);
}
auto readInfo = this->caps()->supportedReadPixelsColorType(colorTypeOfFinalContext,
backendFormatOfFinalContext, dstCT);
// Fail if we can't read from the source surface's color type.
if (readInfo.fColorType == GrColorType::kUnknown) {
callback(context, nullptr);
return;
}
// Fail if read color type does not have all of dstCT's color channels and those missing color
// channels are in the src.
uint32_t dstComponents = GrColorTypeComponentFlags(dstCT);
uint32_t legalReadComponents = GrColorTypeComponentFlags(readInfo.fColorType);
uint32_t srcComponents = GrColorTypeComponentFlags(this->colorInfo().colorType());
if ((~legalReadComponents & dstComponents) & srcComponents) {
callback(context, nullptr);
return;
}
std::unique_ptr<GrRenderTargetContext> tempRTC;
int x = srcRect.fLeft;
int y = srcRect.fTop;
if (needsRescale) {
tempRTC = this->rescale(info, srcRect, rescaleGamma, rescaleQuality);
if (!tempRTC) {
callback(context, nullptr);
return;
}
SkASSERT(SkColorSpace::Equals(tempRTC->colorInfo().colorSpace(), info.colorSpace()));
SkASSERT(tempRTC->origin() == kTopLeft_GrSurfaceOrigin);
x = y = 0;
} else {
sk_sp<GrColorSpaceXform> xform = GrColorSpaceXform::Make(this->colorInfo().colorSpace(),
this->colorInfo().alphaType(),
info.colorSpace(),
info.alphaType());
// Insert a draw to a temporary surface if we need to do a y-flip or color space conversion.
if (this->origin() == kBottomLeft_GrSurfaceOrigin || xform) {
// We flip or color convert by drawing and we don't currently support drawing to
// kPremul.
if (info.alphaType() == kUnpremul_SkAlphaType) {
callback(context, nullptr);
return;
}
sk_sp<GrTextureProxy> texProxy = sk_ref_sp(fRenderTargetProxy->asTextureProxy());
SkRect srcRectToDraw = SkRect::Make(srcRect);
// If the src is not texturable first try to make a copy to a texture.
if (!texProxy) {
texProxy = GrSurfaceProxy::Copy(fContext, fRenderTargetProxy.get(),
this->colorInfo().colorType(),
GrMipMapped::kNo, srcRect, SkBackingFit::kApprox,
SkBudgeted::kNo);
if (!texProxy) {
callback(context, nullptr);
return;
}
srcRectToDraw = SkRect::MakeWH(srcRect.width(), srcRect.height());
}
tempRTC = direct->priv().makeDeferredRenderTargetContext(
SkBackingFit::kApprox, srcRect.width(), srcRect.height(),
this->colorInfo().colorType(), info.refColorSpace(), 1, GrMipMapped::kNo,
kTopLeft_GrSurfaceOrigin);
if (!tempRTC) {
callback(context, nullptr);
return;
}
tempRTC->drawTexture(GrNoClip(), std::move(texProxy), this->colorInfo().colorType(),
GrSamplerState::Filter::kNearest, SkBlendMode::kSrc,
SK_PMColor4fWHITE, srcRectToDraw,
SkRect::MakeWH(srcRect.width(), srcRect.height()), GrAA::kNo,
GrQuadAAFlags::kNone, SkCanvas::kFast_SrcRectConstraint,
SkMatrix::I(), std::move(xform));
x = y = 0;
}
}
auto rtc = tempRTC ? tempRTC.get() : this;
return rtc->asyncReadPixels(SkIRect::MakeXYWH(x, y, info.width(), info.height()),
info.colorType(), callback, context);
}
class GrRenderTargetContext::AsyncReadResult : public SkSurface::AsyncReadResult {
public:
AsyncReadResult(uint32_t inboxID) : fInboxID(inboxID) {}
~AsyncReadResult() override {
for (int i = 0; i < fPlanes.count(); ++i) {
if (!fPlanes[i].fMappedBuffer) {
delete[] static_cast<const char*>(fPlanes[i].fData);
} else {
GrClientMappedBufferManager::BufferFinishedMessageBus::Post(
{std::move(fPlanes[i].fMappedBuffer), fInboxID});
}
}
}
int count() const override { return fPlanes.count(); }
const void* data(int i) const override { return fPlanes[i].fData; }
size_t rowBytes(int i) const override { return fPlanes[i].fRowBytes; }
bool addTransferResult(const PixelTransferResult& result,
SkISize size,
size_t rowBytes,
GrClientMappedBufferManager* manager) {
SkASSERT(!result.fTransferBuffer->isMapped());
const void* mappedData = result.fTransferBuffer->map();
if (!mappedData) {
return false;
}
if (result.fPixelConverter) {
std::unique_ptr<char[]> convertedData(new char[rowBytes * size.height()]);
result.fPixelConverter(convertedData.get(), mappedData);
this->addCpuPlane(convertedData.release(), rowBytes);
result.fTransferBuffer->unmap();
} else {
manager->insert(result.fTransferBuffer);
this->addMappedPlane(mappedData, rowBytes, std::move(result.fTransferBuffer));
}
return true;
}
void addCpuPlane(const char* data, size_t rowBytes) {
SkASSERT(data);
SkASSERT(rowBytes > 0);
fPlanes.emplace_back(data, rowBytes, nullptr);
}
private:
void addMappedPlane(const void* data, size_t rowBytes, sk_sp<GrGpuBuffer> mappedBuffer) {
SkASSERT(data);
SkASSERT(rowBytes > 0);
SkASSERT(mappedBuffer);
SkASSERT(mappedBuffer->isMapped());
fPlanes.emplace_back(data, rowBytes, std::move(mappedBuffer));
}
struct Plane {
Plane(const void* data, size_t rowBytes, sk_sp<GrGpuBuffer> buffer)
: fData(data), fRowBytes(rowBytes), fMappedBuffer(std::move(buffer)) {}
const void* fData;
size_t fRowBytes;
// If this is null then fData is heap alloc and must be delete[]ed as const char[].
sk_sp<GrGpuBuffer> fMappedBuffer;
};
SkSTArray<3, Plane> fPlanes;
uint32_t fInboxID;
};
void GrRenderTargetContext::asyncReadPixels(const SkIRect& rect, SkColorType colorType,
ReadPixelsCallback callback,
ReadPixelsContext context) {
SkASSERT(rect.fLeft >= 0 && rect.fRight <= this->width());
SkASSERT(rect.fTop >= 0 && rect.fBottom <= this->height());
auto directContext = fContext->priv().asDirectContext();
SkASSERT(directContext);
auto mappedBufferManager = directContext->priv().clientMappedBufferManager();
auto transferResult = this->transferPixels(SkColorTypeToGrColorType(colorType), rect);
if (!transferResult.fTransferBuffer) {
auto ii = SkImageInfo::Make(rect.size(), colorType,
this->colorInfo().alphaType(),
this->colorInfo().refColorSpace());
auto result = skstd::make_unique<AsyncReadResult>(0);
std::unique_ptr<char[]> data(new char[ii.computeMinByteSize()]);
SkPixmap pm(ii, data.get(), ii.minRowBytes());
result->addCpuPlane(data.release(), pm.rowBytes());
if (!this->readPixels(ii, pm.writable_addr(), pm.rowBytes(), {rect.fLeft, rect.fTop})) {
callback(context, nullptr);
}
callback(context, std::move(result));
return;
}
struct FinishContext {
ReadPixelsCallback* fClientCallback;
ReadPixelsContext fClientContext;
SkISize fSize;
SkColorType fColorType;
GrClientMappedBufferManager* fMappedBufferManager;
PixelTransferResult fTransferResult;
};
// Assumption is that the caller would like to flush. We could take a parameter or require an
// explicit flush from the caller. We'd have to have a way to defer attaching the finish
// callback to GrGpu until after the next flush that flushes our op list, though.
auto* finishContext = new FinishContext{callback,
context,
rect.size(),
colorType,
mappedBufferManager,
std::move(transferResult)};
auto finishCallback = [](GrGpuFinishedContext c) {
const auto* context = reinterpret_cast<const FinishContext*>(c);
auto result = skstd::make_unique<AsyncReadResult>(context->fMappedBufferManager->inboxID());
size_t rowBytes = context->fSize.width() * SkColorTypeBytesPerPixel(context->fColorType);
if (!result->addTransferResult(context->fTransferResult, context->fSize, rowBytes,
context->fMappedBufferManager)) {
result.reset();
}
(*context->fClientCallback)(context->fClientContext, std::move(result));
delete context;
};
GrFlushInfo flushInfo;
flushInfo.fFinishedContext = finishContext;
flushInfo.fFinishedProc = finishCallback;
this->flush(SkSurface::BackendSurfaceAccess::kNoAccess, flushInfo);
}
void GrRenderTargetContext::asyncRescaleAndReadPixelsYUV420(SkYUVColorSpace yuvColorSpace,
sk_sp<SkColorSpace> dstColorSpace,
const SkIRect& srcRect,
const SkISize& dstSize,
RescaleGamma rescaleGamma,
SkFilterQuality rescaleQuality,
ReadPixelsCallback callback,
ReadPixelsContext context) {
SkASSERT(srcRect.fLeft >= 0 && srcRect.fRight <= this->width());
SkASSERT(srcRect.fTop >= 0 && srcRect.fBottom <= this->height());
SkASSERT(!dstSize.isZero());
SkASSERT((dstSize.width() % 2 == 0) && (dstSize.height() % 2 == 0));
auto direct = fContext->priv().asDirectContext();
if (!direct) {
callback(context, nullptr);
return;
}
if (fRenderTargetProxy->wrapsVkSecondaryCB()) {
callback(context, nullptr);
return;
}
int x = srcRect.fLeft;
int y = srcRect.fTop;
std::unique_ptr<GrRenderTargetContext> tempRTC;
bool needsRescale = srcRect.size() != dstSize;
if (needsRescale) {
// We assume the caller wants kPremul. There is no way to indicate a preference.
auto info = SkImageInfo::Make(dstSize, kRGBA_8888_SkColorType, kPremul_SkAlphaType,
dstColorSpace);
// TODO: Incorporate the YUV conversion into last pass of rescaling.
tempRTC = this->rescale(info, srcRect, rescaleGamma, rescaleQuality);
if (!tempRTC) {
callback(context, nullptr);
return;
}
SkASSERT(SkColorSpace::Equals(tempRTC->colorInfo().colorSpace(), info.colorSpace()));
SkASSERT(tempRTC->origin() == kTopLeft_GrSurfaceOrigin);
x = y = 0;
} else {
// We assume the caller wants kPremul. There is no way to indicate a preference.
sk_sp<GrColorSpaceXform> xform = GrColorSpaceXform::Make(
this->colorInfo().colorSpace(), this->colorInfo().alphaType(), dstColorSpace.get(),
kPremul_SkAlphaType);
if (xform) {
sk_sp<GrTextureProxy> texProxy = this->asTextureProxyRef();
// TODO: Do something if the input is not a texture already.
if (!texProxy) {
callback(context, nullptr);
return;
}
SkRect srcRectToDraw = SkRect::Make(srcRect);
tempRTC = direct->priv().makeDeferredRenderTargetContext(
SkBackingFit::kApprox, dstSize.width(), dstSize.height(),
this->colorInfo().colorType(), dstColorSpace, 1, GrMipMapped::kNo,
kTopLeft_GrSurfaceOrigin);
if (!tempRTC) {
callback(context, nullptr);
return;
}
tempRTC->drawTexture(GrNoClip(), std::move(texProxy), this->colorInfo().colorType(),
GrSamplerState::Filter::kNearest, SkBlendMode::kSrc,
SK_PMColor4fWHITE, srcRectToDraw,
SkRect::MakeWH(srcRect.width(), srcRect.height()), GrAA::kNo,
GrQuadAAFlags::kNone, SkCanvas::kFast_SrcRectConstraint,
SkMatrix::I(), std::move(xform));
x = y = 0;
}
}
auto srcProxy = tempRTC ? tempRTC->asTextureProxyRef() : this->asTextureProxyRef();
// TODO: Do something if the input is not a texture already.
if (!srcProxy) {
callback(context, nullptr);
return;
}
GrColorType srcColorType = tempRTC ? tempRTC->colorInfo().colorType()
: this->colorInfo().colorType();
auto yRTC = direct->priv().makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kApprox, dstSize.width(), dstSize.height(), GrColorType::kAlpha_8,
dstColorSpace, 1, GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin);
int halfW = dstSize.width()/2;
int halfH = dstSize.height()/2;
auto uRTC = direct->priv().makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kApprox, halfW, halfH, GrColorType::kAlpha_8, dstColorSpace, 1,
GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin);
auto vRTC = direct->priv().makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kApprox, halfW, halfH, GrColorType::kAlpha_8, dstColorSpace, 1,
GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin);
if (!yRTC || !uRTC || !vRTC) {
callback(context, nullptr);
return;
}
static constexpr float kRec601M[] {
65.481f / 255, 128.553f / 255, 24.966f / 255, 16.f / 255, // y
-37.797f / 255, -74.203f / 255, 112.0f / 255, 128.f / 255, // u
112.f / 255, -93.786f / 255, -18.214f / 255, 128.f / 255, // v
};
static constexpr float kRec709M[] {
45.5594f / 255, 156.6288f / 255, 15.8118f / 255, 16.f / 255, // y
-25.6642f / 255, -86.3358f / 255, 112.f / 255, 128.f / 255, // u
112.f / 255, -101.7303f / 255, -10.2697f / 255, 128.f / 255, // v
};
static constexpr float kJpegM[] {
0.299f , 0.587f , 0.114f , 0.f / 255, // y
-0.168736f, -0.331264f, 0.5f , 128.f / 255, // u
0.5f , -0.418688f, -0.081312f, 128.f / 255, // v
};
static constexpr float kIM[] {
1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
};
const float* baseM = kIM;
switch (yuvColorSpace) {
case kRec601_SkYUVColorSpace:
baseM = kRec601M;
break;
case kRec709_SkYUVColorSpace:
baseM = kRec709M;
break;
case kJPEG_SkYUVColorSpace:
baseM = kJpegM;
break;
case kIdentity_SkYUVColorSpace:
baseM = kIM;
break;
}
// TODO: Use one transfer buffer for all three planes to reduce map/unmap cost?
auto texMatrix = SkMatrix::MakeTrans(x, y);
SkRect dstRectY = SkRect::Make(dstSize);
SkRect dstRectUV = SkRect::MakeWH(halfW, halfH);
// This matrix generates (r,g,b,a) = (0, 0, 0, y)
float yM[20];
std::fill_n(yM, 15, 0.f);
yM[15] = baseM[0]; yM[16] = baseM[1]; yM[17] = baseM[2]; yM[18] = 0; yM[19] = baseM[3];
GrPaint yPaint;
yPaint.addColorTextureProcessor(srcProxy, srcColorType, texMatrix);
auto yFP = GrColorMatrixFragmentProcessor::Make(yM, false, true, false);
yPaint.addColorFragmentProcessor(std::move(yFP));
yPaint.setPorterDuffXPFactory(SkBlendMode::kSrc);
yRTC->fillRectToRect(GrNoClip(), std::move(yPaint), GrAA::kNo, SkMatrix::I(),
dstRectY, dstRectY);
auto yTransfer = yRTC->transferPixels(GrColorType::kAlpha_8,
SkIRect::MakeWH(yRTC->width(), yRTC->height()));
if (!yTransfer.fTransferBuffer) {
callback(context, nullptr);
return;
}
texMatrix.preScale(2.f, 2.f);
// This matrix generates (r,g,b,a) = (0, 0, 0, u)
float uM[20];
std::fill_n(uM, 15, 0.f);
uM[15] = baseM[4]; uM[16] = baseM[5]; uM[17] = baseM[6]; uM[18] = 0; uM[19] = baseM[7];
GrPaint uPaint;
uPaint.addColorTextureProcessor(srcProxy, srcColorType, texMatrix,
GrSamplerState::ClampBilerp());
auto uFP = GrColorMatrixFragmentProcessor::Make(uM, false, true, false);
uPaint.addColorFragmentProcessor(std::move(uFP));
uPaint.setPorterDuffXPFactory(SkBlendMode::kSrc);
uRTC->fillRectToRect(GrNoClip(), std::move(uPaint), GrAA::kNo, SkMatrix::I(),
dstRectUV, dstRectUV);
auto uTransfer = uRTC->transferPixels(GrColorType::kAlpha_8,
SkIRect::MakeWH(uRTC->width(), uRTC->height()));
if (!uTransfer.fTransferBuffer) {
callback(context, nullptr);
return;
}
// This matrix generates (r,g,b,a) = (0, 0, 0, v)
float vM[20];
std::fill_n(vM, 15, 0.f);
vM[15] = baseM[8]; vM[16] = baseM[9]; vM[17] = baseM[10]; vM[18] = 0; vM[19] = baseM[11];
GrPaint vPaint;
vPaint.addColorTextureProcessor(srcProxy, srcColorType, texMatrix,
GrSamplerState::ClampBilerp());
auto vFP = GrColorMatrixFragmentProcessor::Make(vM, false, true, false);
vPaint.addColorFragmentProcessor(std::move(vFP));
vPaint.setPorterDuffXPFactory(SkBlendMode::kSrc);
vRTC->fillRectToRect(GrNoClip(), std::move(vPaint), GrAA::kNo, SkMatrix::I(),
dstRectUV, dstRectUV);
auto vTransfer = vRTC->transferPixels(GrColorType::kAlpha_8,
SkIRect::MakeWH(vRTC->width(), vRTC->height()));
if (!vTransfer.fTransferBuffer) {
callback(context, nullptr);
return;
}
struct FinishContext {
ReadPixelsCallback* fClientCallback;
ReadPixelsContext fClientContext;
GrClientMappedBufferManager* fMappedBufferManager;
SkISize fSize;
PixelTransferResult fYTransfer;
PixelTransferResult fUTransfer;
PixelTransferResult fVTransfer;
};
// Assumption is that the caller would like to flush. We could take a parameter or require an
// explicit flush from the caller. We'd have to have a way to defer attaching the finish
// callback to GrGpu until after the next flush that flushes our op list, though.
auto* finishContext = new FinishContext{callback,
context,
direct->priv().clientMappedBufferManager(),
dstSize,
std::move(yTransfer),
std::move(uTransfer),
std::move(vTransfer)};
auto finishCallback = [](GrGpuFinishedContext c) {
const auto* context = reinterpret_cast<const FinishContext*>(c);
auto result = skstd::make_unique<AsyncReadResult>(context->fMappedBufferManager->inboxID());
auto manager = context->fMappedBufferManager;
size_t rowBytes = SkToSizeT(context->fSize.width());
if (!result->addTransferResult(context->fYTransfer, context->fSize, rowBytes, manager)) {
(*context->fClientCallback)(context->fClientContext, nullptr);
delete context;
return;
}
rowBytes /= 2;
SkISize uvSize = {context->fSize.width()/2, context->fSize.height()/2};
if (!result->addTransferResult(context->fUTransfer, uvSize, rowBytes, manager)) {
(*context->fClientCallback)(context->fClientContext, nullptr);
delete context;
return;
}
if (!result->addTransferResult(context->fVTransfer, uvSize, rowBytes, manager)) {
(*context->fClientCallback)(context->fClientContext, nullptr);
delete context;
return;
}
(*context->fClientCallback)(context->fClientContext, std::move(result));
delete context;
};
GrFlushInfo flushInfo;
flushInfo.fFinishedContext = finishContext;
flushInfo.fFinishedProc = finishCallback;
this->flush(SkSurface::BackendSurfaceAccess::kNoAccess, flushInfo);
}
GrSemaphoresSubmitted GrRenderTargetContext::flush(SkSurface::BackendSurfaceAccess access,
const GrFlushInfo& info) {
ASSERT_SINGLE_OWNER
if (fContext->priv().abandoned()) {
return GrSemaphoresSubmitted::kNo;
}
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "flush", fContext);
return this->drawingManager()->flushSurface(fRenderTargetProxy.get(), access, info);
}
bool GrRenderTargetContext::waitOnSemaphores(int numSemaphores,
const GrBackendSemaphore waitSemaphores[]) {
ASSERT_SINGLE_OWNER
RETURN_FALSE_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "waitOnSemaphores", fContext);
AutoCheckFlush acf(this->drawingManager());
if (numSemaphores && !this->caps()->semaphoreSupport()) {
return false;
}
auto direct = fContext->priv().asDirectContext();
if (!direct) {
return false;
}
auto resourceProvider = direct->priv().resourceProvider();
std::unique_ptr<sk_sp<GrSemaphore>[]> grSemaphores(new sk_sp<GrSemaphore>[numSemaphores]);
for (int i = 0; i < numSemaphores; ++i) {
grSemaphores[i] = resourceProvider->wrapBackendSemaphore(
waitSemaphores[i], GrResourceProvider::SemaphoreWrapType::kWillWait,
kAdopt_GrWrapOwnership);
}
this->drawingManager()->newWaitRenderTask(this->asSurfaceProxyRef(), std::move(grSemaphores),
numSemaphores);
return true;
}
void GrRenderTargetContext::insertEventMarker(const SkString& str) {
std::unique_ptr<GrOp> op(GrDebugMarkerOp::Make(fContext, fRenderTargetProxy.get(), str));
this->addOp(std::move(op));
}
void GrRenderTargetContext::drawPath(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkPath& path,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawPath", fContext);
GrShape shape(path, style);
this->drawShape(clip, std::move(paint), aa, viewMatrix, shape);
}
void GrRenderTargetContext::drawShape(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const GrShape& shape) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawShape", fContext);
if (shape.isEmpty()) {
if (shape.inverseFilled()) {
this->drawPaint(clip, std::move(paint), viewMatrix);
}
return;
}
AutoCheckFlush acf(this->drawingManager());
if (!shape.style().hasPathEffect()) {
GrAAType aaType = this->chooseAAType(aa);
SkRRect rrect;
// We can ignore the starting point and direction since there is no path effect.
bool inverted;
if (shape.asRRect(&rrect, nullptr, nullptr, &inverted) && !inverted) {
if (rrect.isRect()) {
this->drawRect(clip, std::move(paint), aa, viewMatrix, rrect.rect(),
&shape.style());
return;
} else if (rrect.isOval()) {
this->drawOval(clip, std::move(paint), aa, viewMatrix, rrect.rect(), shape.style());
return;
}
this->drawRRect(clip, std::move(paint), aa, viewMatrix, rrect, shape.style());
return;
} else if (GrAAType::kCoverage == aaType && shape.style().isSimpleFill() &&
viewMatrix.rectStaysRect()) {
// TODO: the rectStaysRect restriction could be lifted if we were willing to apply
// the matrix to all the points individually rather than just to the rect
SkRect rects[2];
if (shape.asNestedRects(rects)) {
// Concave AA paths are expensive - try to avoid them for special cases
std::unique_ptr<GrDrawOp> op = GrStrokeRectOp::MakeNested(
fContext, std::move(paint), viewMatrix, rects);
if (op) {
this->addDrawOp(clip, std::move(op));
}
// Returning here indicates that there is nothing to draw in this case.
return;
}
}
}
this->drawShapeUsingPathRenderer(clip, std::move(paint), aa, viewMatrix, shape);
}
bool GrRenderTargetContextPriv::drawAndStencilPath(const GrHardClip& clip,
const GrUserStencilSettings* ss,
SkRegion::Op op,
bool invert,
GrAA aa,
const SkMatrix& viewMatrix,
const SkPath& path) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_FALSE_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "drawAndStencilPath",
fRenderTargetContext->fContext);
if (path.isEmpty() && path.isInverseFillType()) {
GrPaint paint;
paint.setCoverageSetOpXPFactory(op, invert);
this->stencilRect(clip, ss, std::move(paint), GrAA::kNo, SkMatrix::I(),
SkRect::MakeIWH(fRenderTargetContext->width(),
fRenderTargetContext->height()));
return true;
}
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
// An Assumption here is that path renderer would use some form of tweaking
// the src color (either the input alpha or in the frag shader) to implement
// aa. If we have some future driver-mojo path AA that can do the right
// thing WRT to the blend then we'll need some query on the PR.
GrAAType aaType = fRenderTargetContext->chooseAAType(aa);
bool hasUserStencilSettings = !ss->isUnused();
SkIRect clipConservativeBounds;
clip.getConservativeBounds(fRenderTargetContext->width(), fRenderTargetContext->height(),
&clipConservativeBounds, nullptr);
GrShape shape(path, GrStyle::SimpleFill());
GrPathRenderer::CanDrawPathArgs canDrawArgs;
canDrawArgs.fCaps = fRenderTargetContext->caps();
canDrawArgs.fProxy = fRenderTargetContext->proxy();
canDrawArgs.fViewMatrix = &viewMatrix;
canDrawArgs.fShape = &shape;
canDrawArgs.fClipConservativeBounds = &clipConservativeBounds;
canDrawArgs.fAAType = aaType;
SkASSERT(!fRenderTargetContext->wrapsVkSecondaryCB());
canDrawArgs.fTargetIsWrappedVkSecondaryCB = false;
canDrawArgs.fHasUserStencilSettings = hasUserStencilSettings;
// Don't allow the SW renderer
GrPathRenderer* pr = fRenderTargetContext->drawingManager()->getPathRenderer(
canDrawArgs, false, GrPathRendererChain::DrawType::kStencilAndColor);
if (!pr) {
return false;
}
GrPaint paint;
paint.setCoverageSetOpXPFactory(op, invert);
GrPathRenderer::DrawPathArgs args{fRenderTargetContext->drawingManager()->getContext(),
std::move(paint),
ss,
fRenderTargetContext,
&clip,
&clipConservativeBounds,
&viewMatrix,
&shape,
aaType,
fRenderTargetContext->colorInfo().isLinearlyBlended()};
pr->drawPath(args);
return true;
}
SkBudgeted GrRenderTargetContextPriv::isBudgeted() const {
ASSERT_SINGLE_OWNER_PRIV
if (fRenderTargetContext->fContext->priv().abandoned()) {
return SkBudgeted::kNo;
}
SkDEBUGCODE(fRenderTargetContext->validate();)
return fRenderTargetContext->fRenderTargetProxy->isBudgeted();
}
void GrRenderTargetContext::drawShapeUsingPathRenderer(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const GrShape& originalShape) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "internalDrawPath", fContext);
if (!viewMatrix.isFinite() || !originalShape.bounds().isFinite()) {
return;
}
SkIRect clipConservativeBounds;
clip.getConservativeBounds(this->width(), this->height(), &clipConservativeBounds, nullptr);
GrShape tempShape;
GrAAType aaType = this->chooseAAType(aa);
GrPathRenderer::CanDrawPathArgs canDrawArgs;
canDrawArgs.fCaps = this->caps();
canDrawArgs.fProxy = this->proxy();
canDrawArgs.fViewMatrix = &viewMatrix;
canDrawArgs.fShape = &originalShape;
canDrawArgs.fClipConservativeBounds = &clipConservativeBounds;
canDrawArgs.fTargetIsWrappedVkSecondaryCB = this->wrapsVkSecondaryCB();
canDrawArgs.fHasUserStencilSettings = false;
GrPathRenderer* pr;
static constexpr GrPathRendererChain::DrawType kType = GrPathRendererChain::DrawType::kColor;
if (originalShape.isEmpty() && !originalShape.inverseFilled()) {
return;
}
canDrawArgs.fAAType = aaType;
// Try a 1st time without applying any of the style to the geometry (and barring sw)
pr = this->drawingManager()->getPathRenderer(canDrawArgs, false, kType);
SkScalar styleScale = GrStyle::MatrixToScaleFactor(viewMatrix);
if (!pr && originalShape.style().pathEffect()) {
// It didn't work above, so try again with the path effect applied.
tempShape = originalShape.applyStyle(GrStyle::Apply::kPathEffectOnly, styleScale);
if (tempShape.isEmpty()) {
return;
}
canDrawArgs.fShape = &tempShape;
pr = this->drawingManager()->getPathRenderer(canDrawArgs, false, kType);
}
if (!pr) {
if (canDrawArgs.fShape->style().applies()) {
tempShape = canDrawArgs.fShape->applyStyle(GrStyle::Apply::kPathEffectAndStrokeRec,
styleScale);
if (tempShape.isEmpty()) {
return;
}
canDrawArgs.fShape = &tempShape;
// This time, allow SW renderer
pr = this->drawingManager()->getPathRenderer(canDrawArgs, true, kType);
} else {
pr = this->drawingManager()->getSoftwarePathRenderer();
}
}
if (!pr) {
#ifdef SK_DEBUG
SkDebugf("Unable to find path renderer compatible with path.\n");
#endif
return;
}
GrPathRenderer::DrawPathArgs args{this->drawingManager()->getContext(),
std::move(paint),
&GrUserStencilSettings::kUnused,
this,
&clip,
&clipConservativeBounds,
&viewMatrix,
canDrawArgs.fShape,
aaType,
this->colorInfo().isLinearlyBlended()};
pr->drawPath(args);
}
static void op_bounds(SkRect* bounds, const GrOp* op) {
*bounds = op->bounds();
if (op->hasZeroArea()) {
if (op->hasAABloat()) {
bounds->outset(0.5f, 0.5f);
} else {
// We don't know which way the particular GPU will snap lines or points at integer
// coords. So we ensure that the bounds is large enough for either snap.
SkRect before = *bounds;
bounds->roundOut(bounds);
if (bounds->fLeft == before.fLeft) {
bounds->fLeft -= 1;
}
if (bounds->fTop == before.fTop) {
bounds->fTop -= 1;
}
if (bounds->fRight == before.fRight) {
bounds->fRight += 1;
}
if (bounds->fBottom == before.fBottom) {
bounds->fBottom += 1;
}
}
}
}
void GrRenderTargetContext::addOp(std::unique_ptr<GrOp> op) {
this->getOpsTask()->addOp(
std::move(op), GrTextureResolveManager(this->drawingManager()), *this->caps());
}
void GrRenderTargetContext::addDrawOp(const GrClip& clip, std::unique_ptr<GrDrawOp> op,
const std::function<WillAddOpFn>& willAddFn) {
ASSERT_SINGLE_OWNER
if (fContext->priv().abandoned()) {
fContext->priv().opMemoryPool()->release(std::move(op));
return;
}
SkDEBUGCODE(this->validate();)
SkDEBUGCODE(op->fAddDrawOpCalled = true;)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "addDrawOp", fContext);
// Setup clip
SkRect bounds;
op_bounds(&bounds, op.get());
GrAppliedClip appliedClip;
GrDrawOp::FixedFunctionFlags fixedFunctionFlags = op->fixedFunctionFlags();
bool usesHWAA = fixedFunctionFlags & GrDrawOp::FixedFunctionFlags::kUsesHWAA;
bool usesStencil = fixedFunctionFlags & GrDrawOp::FixedFunctionFlags::kUsesStencil;
if (usesStencil) {
this->setNeedsStencil(usesHWAA);
}
if (!clip.apply(fContext, this, usesHWAA, usesStencil, &appliedClip, &bounds)) {
fContext->priv().opMemoryPool()->release(std::move(op));
return;
}
SkASSERT((!usesStencil && !appliedClip.hasStencilClip()) || (fNumStencilSamples > 0));
GrClampType clampType = GrColorTypeClampType(this->colorInfo().colorType());
// MIXED SAMPLES TODO: If we start using mixed samples for clips we will need to check the clip
// here as well.
bool hasMixedSampledCoverage = (usesHWAA && this->numSamples() <= 1);
#ifdef SK_DEBUG
if (hasMixedSampledCoverage) {
SkASSERT(usesStencil);
SkASSERT(fRenderTargetProxy->canUseMixedSamples(*this->caps()));
}
#endif
GrProcessorSet::Analysis analysis = op->finalize(
*this->caps(), &appliedClip, hasMixedSampledCoverage, clampType);
GrXferProcessor::DstProxy dstProxy;
if (analysis.requiresDstTexture()) {
if (!this->setupDstProxy(clip, *op, &dstProxy)) {
fContext->priv().opMemoryPool()->release(std::move(op));
return;
}
}
op->setClippedBounds(bounds);
auto opsTask = this->getOpsTask();
if (willAddFn) {
willAddFn(op.get(), opsTask->uniqueID());
}
opsTask->addDrawOp(std::move(op), analysis, std::move(appliedClip), dstProxy,
GrTextureResolveManager(this->drawingManager()), *this->caps());
}
bool GrRenderTargetContext::setupDstProxy(const GrClip& clip, const GrOp& op,
GrXferProcessor::DstProxy* dstProxy) {
// If we are wrapping a vulkan secondary command buffer, we can't make a dst copy because we
// don't actually have a VkImage to make a copy of. Additionally we don't have the power to
// start and stop the render pass in order to make the copy.
if (fRenderTargetProxy->wrapsVkSecondaryCB()) {
return false;
}
if (this->caps()->textureBarrierSupport() && !fRenderTargetProxy->requiresManualMSAAResolve()) {
if (GrTextureProxy* texProxy = fRenderTargetProxy->asTextureProxy()) {
// The render target is a texture, so we can read from it directly in the shader. The XP
// will be responsible to detect this situation and request a texture barrier.
dstProxy->setProxy(sk_ref_sp(texProxy));
dstProxy->setOffset(0, 0);
return true;
}
}
SkIRect copyRect = SkIRect::MakeWH(fRenderTargetProxy->width(), fRenderTargetProxy->height());
SkIRect clippedRect;
clip.getConservativeBounds(
fRenderTargetProxy->width(), fRenderTargetProxy->height(), &clippedRect);
SkRect opBounds = op.bounds();
// If the op has aa bloating or is a infinitely thin geometry (hairline) outset the bounds by
// 0.5 pixels.
if (op.hasAABloat() || op.hasZeroArea()) {
opBounds.outset(0.5f, 0.5f);
// An antialiased/hairline draw can sometimes bleed outside of the clips bounds. For
// performance we may ignore the clip when the draw is entirely inside the clip is float
// space but will hit pixels just outside the clip when actually rasterizing.
clippedRect.outset(1, 1);
clippedRect.intersect(SkIRect::MakeWH(
fRenderTargetProxy->width(), fRenderTargetProxy->height()));
}
SkIRect opIBounds;
opBounds.roundOut(&opIBounds);
if (!clippedRect.intersect(opIBounds)) {
#ifdef SK_DEBUG
GrCapsDebugf(this->caps(), "setupDstTexture: Missed an early reject bailing on draw.");
#endif
return false;
}
// MSAA consideration: When there is support for reading MSAA samples in the shader we could
// have per-sample dst values by making the copy multisampled.
GrCaps::DstCopyRestrictions restrictions = this->caps()->getDstCopyRestrictions(
fRenderTargetProxy.get(), this->colorInfo().colorType());
if (!restrictions.fMustCopyWholeSrc) {
copyRect = clippedRect;
}
SkIPoint dstOffset;
SkBackingFit fit;
if (restrictions.fRectsMustMatch == GrSurfaceProxy::RectsMustMatch::kYes) {
dstOffset = {0, 0};
fit = SkBackingFit::kExact;
} else {
dstOffset = {copyRect.fLeft, copyRect.fTop};
fit = SkBackingFit::kApprox;
}
sk_sp<GrTextureProxy> newProxy = GrSurfaceProxy::Copy(
fContext, fRenderTargetProxy.get(), this->colorInfo().colorType(), GrMipMapped::kNo,
copyRect, fit, SkBudgeted::kYes, restrictions.fRectsMustMatch);
SkASSERT(newProxy);
dstProxy->setProxy(std::move(newProxy));
dstProxy->setOffset(dstOffset);
return true;
}
bool GrRenderTargetContext::blitTexture(GrTextureProxy* src, GrColorType srcColorType,
const SkIRect& srcRect, const SkIPoint& dstPoint) {
SkIRect clippedSrcRect;
SkIPoint clippedDstPoint;
if (!GrClipSrcRectAndDstPoint(this->asSurfaceProxy()->isize(), src->isize(), srcRect, dstPoint,
&clippedSrcRect, &clippedDstPoint)) {
return false;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
auto fp = GrSimpleTextureEffect::Make(sk_ref_sp(src), srcColorType, SkMatrix::I());
if (!fp) {
return false;
}
paint.addColorFragmentProcessor(std::move(fp));
this->fillRectToRect(
GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(),
SkRect::MakeXYWH(clippedDstPoint.fX, clippedDstPoint.fY, clippedSrcRect.width(),
clippedSrcRect.height()),
SkRect::Make(clippedSrcRect));
return true;
}