src/gpu/GrClipMaskManager.cpp - Issue 732693002: Drawstate on stack

Unified Diff: src/gpu/GrClipMaskManager.cpp

Issue 732693002: Drawstate on stack (Closed) Base URL: https://skia.googlesource.com/skia.git@real_def_gp

Patch Set: tiny fix Created 6 years, 1 month ago

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Index: src/gpu/GrClipMaskManager.cpp

diff --git a/src/gpu/GrClipMaskManager.cpp b/src/gpu/GrClipMaskManager.cpp

index e04d444a545e4789954f62f76b88a57f83696d4b..f86aa9de29f7e1eb649972d4b88179505ab1c614 100644

--- a/src/gpu/GrClipMaskManager.cpp

+++ b/src/gpu/GrClipMaskManager.cpp

@@ -1,4 +1,3 @@

@@ -24,17 +23,15 @@

#include "effects/GrRRectEffect.h"

#define GR_AA_CLIP 1

typedef SkClipStack::Element Element;

////////////////////////////////////////////////////////////////////////////////

namespace {

// set up the draw state to enable the aa clipping mask. Besides setting up the

// stage matrix this also alters the vertex layout

-void setup_drawstate_aaclip(GrDrawTarget* gpu,

- GrTexture* result,

- const SkIRect &devBound) {

- GrDrawState* drawState = gpu->drawState();

+void setup_drawstate_aaclip(const SkIRect &devBound,

+ GrDrawState* drawState,

+ GrTexture* result) {

SkASSERT(drawState);

SkMatrix mat;

@@ -58,7 +55,8 @@ void setup_drawstate_aaclip(GrDrawTarget* gpu,

}

bool path_needs_SW_renderer(GrContext* context,

- GrDrawTarget* gpu,

+ const GrDrawTarget* gpu,

+ const GrDrawState* drawState,

const SkPath& origPath,

const SkStrokeRec& stroke,

bool doAA) {

@@ -72,9 +70,8 @@ bool path_needs_SW_renderer(GrContext* context,

GrPathRendererChain::kColorAntiAlias_DrawType :

GrPathRendererChain::kColor_DrawType;

- return NULL == context->getPathRenderer(*path, stroke, gpu, false, type);

+ return NULL == context->getPathRenderer(gpu, drawState, *path, stroke, false, type);

}

@@ -82,8 +79,8 @@ bool path_needs_SW_renderer(GrContext* context,

* will be used on any element. If so, it returns true to indicate that the

* entire clip should be rendered in SW and then uploaded en masse to the gpu.

-bool GrClipMaskManager::useSWOnlyPath(const GrReducedClip::ElementList& elements) {

+bool GrClipMaskManager::useSWOnlyPath(const GrDrawState* drawState,

+ const GrReducedClip::ElementList& elements) {

// TODO: generalize this function so that when

// a clip gets complex enough it can just be done in SW regardless

// of whether it would invoke the GrSoftwarePathRenderer.

@@ -96,7 +93,7 @@ bool GrClipMaskManager::useSWOnlyPath(const GrReducedClip::ElementList& elements

if (Element::kRect_Type != element->getType()) {

SkPath path;

element->asPath(&path);

- if (path_needs_SW_renderer(this->getContext(), fClipTarget, path, stroke,

+ if (path_needs_SW_renderer(this->getContext(), fClipTarget, drawState, path, stroke,

element->isAA())) {

return true;

}

@@ -105,12 +102,11 @@ bool GrClipMaskManager::useSWOnlyPath(const GrReducedClip::ElementList& elements

return false;

}

-bool GrClipMaskManager::installClipEffects(const GrReducedClip::ElementList& elements,

+bool GrClipMaskManager::installClipEffects(GrDrawState* drawState,

GrDrawState::AutoRestoreEffects* are,

+ const GrReducedClip::ElementList& elements,

const SkVector& clipToRTOffset,

const SkRect* drawBounds) {

- GrDrawState* drawState = fClipTarget->drawState();

SkRect boundsInClipSpace;

if (drawBounds) {

boundsInClipSpace = *drawBounds;

@@ -120,10 +116,7 @@ bool GrClipMaskManager::installClipEffects(const GrReducedClip::ElementList& ele

are->set(drawState);

GrRenderTarget* rt = drawState->getRenderTarget();

GrReducedClip::ElementList::Iter iter(elements);

- bool setARE = false;

bool failed = false;

while (iter.get()) {

SkRegion::Op op = iter.get()->getOp();

bool invert;

@@ -187,11 +180,7 @@ bool GrClipMaskManager::installClipEffects(const GrReducedClip::ElementList& ele

break;

}

if (fp) {

- if (!setARE) {

- are->set(fClipTarget->drawState());

- setARE = true;

- }

- fClipTarget->drawState()->addCoverageProcessor(fp);

+ drawState->addCoverageProcessor(fp);

} else {

failed = true;

break;

@@ -203,18 +192,18 @@ bool GrClipMaskManager::installClipEffects(const GrReducedClip::ElementList& ele

if (failed) {

are->set(NULL);

}

return !failed;

}

////////////////////////////////////////////////////////////////////////////////

// sort out what kind of clip mask needs to be created: alpha, stencil,

// scissor, or entirely software

-bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

- const SkRect* devBounds,

+bool GrClipMaskManager::setupClipping(GrDrawState* drawState,

GrDrawState::AutoRestoreEffects* are,

GrDrawState::AutoRestoreStencil* ars,

- ScissorState* scissorState) {

+ ScissorState* scissorState,

+ const GrClipData* clipDataIn,

+ const SkRect* devBounds) {

fCurrClipMaskType = kNone_ClipMaskType;

if (kRespectClip_StencilClipMode == fClipMode) {

fClipMode = kIgnoreClip_StencilClipMode;

@@ -225,10 +214,8 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

GrReducedClip::InitialState initialState;

SkIRect clipSpaceIBounds;

bool requiresAA;

+ GrRenderTarget* rt = drawState->getRenderTarget();

- GrDrawState* drawState = fClipTarget->drawState();

- const GrRenderTarget* rt = drawState->getRenderTarget();

// GrDrawTarget should have filtered this for us

SkASSERT(rt);

@@ -253,7 +240,7 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

}

if (ignoreClip) {

- this->setDrawStateStencil(ars);

+ this->setDrawStateStencil(drawState, ars);

return true;

}

@@ -269,14 +256,15 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

SkVector clipToRTOffset = { SkIntToScalar(-clipDataIn->fOrigin.fX),

SkIntToScalar(-clipDataIn->fOrigin.fY) };

if (elements.isEmpty() ||

- (requiresAA && this->installClipEffects(elements, are, clipToRTOffset, devBounds))) {

+ (requiresAA && this->installClipEffects(drawState, are, elements, clipToRTOffset,

+ devBounds))) {

SkIRect scissorSpaceIBounds(clipSpaceIBounds);

scissorSpaceIBounds.offset(-clipDataIn->fOrigin);

if (NULL == devBounds ||

!SkRect::Make(scissorSpaceIBounds).contains(*devBounds)) {

scissorState->set(scissorSpaceIBounds);

}

- this->setDrawStateStencil(ars);

+ this->setDrawStateStencil(drawState, ars);

return true;

}

@@ -286,7 +274,7 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

if (0 == rt->numSamples() && requiresAA) {

GrTexture* result = NULL;

- if (this->useSWOnlyPath(elements)) {

+ if (this->useSWOnlyPath(drawState, elements)) {

// The clip geometry is complex enough that it will be more efficient to create it

// entirely in software

result = this->createSoftwareClipMask(genID,

@@ -305,9 +293,8 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

// clipSpace bounds. We determine the mask's position WRT to the render target here.

SkIRect rtSpaceMaskBounds = clipSpaceIBounds;

rtSpaceMaskBounds.offset(-clipDataIn->fOrigin);

- are->set(fClipTarget->drawState());

- setup_drawstate_aaclip(fClipTarget, result, rtSpaceMaskBounds);

- this->setDrawStateStencil(ars);

+ setup_drawstate_aaclip(rtSpaceMaskBounds, drawState, result);

+ this->setDrawStateStencil(drawState, ars);

return true;

}

// if alpha clip mask creation fails fall through to the non-AA code paths

@@ -323,7 +310,8 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

// use the stencil clip if we can't represent the clip as a rectangle.

SkIPoint clipSpaceToStencilSpaceOffset = -clipDataIn->fOrigin;

- this->createStencilClipMask(genID,

+ this->createStencilClipMask(rt,

+ genID,

initialState,

elements,

clipSpaceIBounds,

@@ -335,27 +323,15 @@ bool GrClipMaskManager::setupClipping(const GrClipData* clipDataIn,

SkIRect scissorSpaceIBounds(clipSpaceIBounds);

scissorSpaceIBounds.offset(clipSpaceToStencilSpaceOffset);

scissorState->set(scissorSpaceIBounds);

- this->setDrawStateStencil(ars);

+ this->setDrawStateStencil(drawState, ars);

return true;

}

-#define VISUALIZE_COMPLEX_CLIP 0

-#if VISUALIZE_COMPLEX_CLIP

- #include "SkRandom.h"

- SkRandom gRandom;

- #define SET_RANDOM_COLOR drawState->setColor(0xff000000 | gRandom.nextU());

-#else

- #define SET_RANDOM_COLOR

-#endif

namespace {

////////////////////////////////////////////////////////////////////////////////

// set up the OpenGL blend function to perform the specified

// boolean operation for alpha clip mask creation

-void setup_boolean_blendcoeffs(GrDrawState* drawState, SkRegion::Op op) {

+void setup_boolean_blendcoeffs(SkRegion::Op op, GrDrawState* drawState) {

switch (op) {

case SkRegion::kReplace_Op:

drawState->setBlendFunc(kOne_GrBlendCoeff, kZero_GrBlendCoeff);

@@ -380,14 +356,14 @@ void setup_boolean_blendcoeffs(GrDrawState* drawState, SkRegion::Op op) {

break;

}

////////////////////////////////////////////////////////////////////////////////

-bool GrClipMaskManager::drawElement(GrTexture* target,

+bool GrClipMaskManager::drawElement(GrDrawState* drawState,

+ GrTexture* target,

const SkClipStack::Element* element,

GrPathRenderer* pr) {

- GrDrawState* drawState = fClipTarget->drawState();

+ GrDrawTarget::AutoGeometryPush agp(fClipTarget);

drawState->setRenderTarget(target->asRenderTarget());

@@ -401,11 +377,12 @@ bool GrClipMaskManager::drawElement(GrTexture* target,

// the entire mask bounds and writes 0 outside the rect.

if (element->isAA()) {

this->getContext()->getAARectRenderer()->fillAARect(fClipTarget,

+ drawState,

element->getRect(),

SkMatrix::I(),

element->getRect());

} else {

- fClipTarget->drawSimpleRect(element->getRect());

+ fClipTarget->drawSimpleRect(drawState, element->getRect());

}

return true;

default: {

@@ -420,22 +397,24 @@ bool GrClipMaskManager::drawElement(GrTexture* target,

GrPathRendererChain::DrawType type;

type = element->isAA() ? GrPathRendererChain::kColorAntiAlias_DrawType :

GrPathRendererChain::kColor_DrawType;

- pr = this->getContext()->getPathRenderer(path, stroke, fClipTarget, false, type);

+ pr = this->getContext()->getPathRenderer(fClipTarget, drawState, path, stroke,

+ false, type);

}

if (NULL == pr) {

return false;

}

- pr->drawPath(path, stroke, fClipTarget, element->isAA());

+ pr->drawPath(fClipTarget, drawState, path, stroke, element->isAA());

break;

}

return true;

}

-bool GrClipMaskManager::canStencilAndDrawElement(GrTexture* target,

- const SkClipStack::Element* element,

- GrPathRenderer** pr) {

- GrDrawState* drawState = fClipTarget->drawState();

+bool GrClipMaskManager::canStencilAndDrawElement(GrDrawState* drawState,

+ GrTexture* target,

+ GrPathRenderer** pr,

+ const SkClipStack::Element* element) {

drawState->setRenderTarget(target->asRenderTarget());

if (Element::kRect_Type == element->getType()) {

@@ -452,24 +431,23 @@ bool GrClipMaskManager::canStencilAndDrawElement(GrTexture* target,

GrPathRendererChain::DrawType type = element->isAA() ?

GrPathRendererChain::kStencilAndColorAntiAlias_DrawType :

GrPathRendererChain::kStencilAndColor_DrawType;

- *pr = this->getContext()->getPathRenderer(path, stroke, fClipTarget, false, type);

+ *pr = this->getContext()->getPathRenderer(fClipTarget, drawState, path, stroke, false,

+ type);

return SkToBool(*pr);

}

-void GrClipMaskManager::mergeMask(GrTexture* dstMask,

+void GrClipMaskManager::mergeMask(GrDrawState* drawState,

+ GrTexture* dstMask,

GrTexture* srcMask,

SkRegion::Op op,

const SkIRect& dstBound,

const SkIRect& srcBound) {

- GrDrawState::AutoViewMatrixRestore avmr;

- GrDrawState* drawState = fClipTarget->drawState();

- SkAssertResult(avmr.setIdentity(drawState));

- GrDrawState::AutoRestoreEffects are(drawState);

+ SkAssertResult(drawState->setIdentityViewMatrix());

drawState->setRenderTarget(dstMask->asRenderTarget());

- setup_boolean_blendcoeffs(drawState, op);

+ setup_boolean_blendcoeffs(op, drawState);

SkMatrix sampleM;

sampleM.setIDiv(srcMask->width(), srcMask->height());

@@ -480,7 +458,7 @@ void GrClipMaskManager::mergeMask(GrTexture* dstMask,

GrTextureDomain::MakeTexelDomain(srcMask, srcBound),

GrTextureDomain::kDecal_Mode,

GrTextureParams::kNone_FilterMode))->unref();

- fClipTarget->drawSimpleRect(SkRect::Make(dstBound));

+ fClipTarget->drawSimpleRect(drawState, SkRect::Make(dstBound));

}

GrTexture* GrClipMaskManager::createTempMask(int width, int height) {

@@ -563,13 +541,6 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

// Set the matrix so that rendered clip elements are transformed to mask space from clip space.

SkMatrix translate;

translate.setTranslate(clipToMaskOffset);

- GrDrawTarget::AutoGeometryAndStatePush agasp(fClipTarget, GrDrawTarget::kReset_ASRInit,

- &translate);

- GrDrawState* drawState = fClipTarget->drawState();

- // We're drawing a coverage mask and want coverage to be run through the blend function.

- drawState->enableState(GrDrawState::kCoverageDrawing_StateBit);

// The scratch texture that we are drawing into can be substantially larger than the mask. Only

// clear the part that we care about.

@@ -583,18 +554,21 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

// pass must not set values outside of this bounds or stencil values outside the rect won't be

// cleared.

GrDrawTarget::AutoClipRestore acr(fClipTarget, maskSpaceIBounds);

- drawState->enableState(GrDrawState::kClip_StateBit);

SkAutoTUnref<GrTexture> temp;

// walk through each clip element and perform its set op

for (GrReducedClip::ElementList::Iter iter = elements.headIter(); iter.get(); iter.next()) {

const Element* element = iter.get();

SkRegion::Op op = element->getOp();

bool invert = element->isInverseFilled();

if (invert || SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) {

+ GrDrawState drawState(translate);

+ // We're drawing a coverage mask and want coverage to be run through the blend function.

+ drawState.enableState(GrDrawState::kCoverageDrawing_StateBit |

+ GrDrawState::kClip_StateBit);

GrPathRenderer* pr = NULL;

- bool useTemp = !this->canStencilAndDrawElement(result, element, &pr);

+ bool useTemp = !this->canStencilAndDrawElement(&drawState, result, &pr, element);

GrTexture* dst;

// This is the bounds of the clip element in the space of the alpha-mask. The temporary

// mask buffer can be substantially larger than the actually clip stack element. We

@@ -622,11 +596,10 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

dst = temp;

// clear the temp target and set blend to replace

fClipTarget->clear(&maskSpaceElementIBounds,

- invert ? 0xffffffff : 0x00000000,

- true,

- dst->asRenderTarget());

- setup_boolean_blendcoeffs(drawState, SkRegion::kReplace_Op);

+ invert ? 0xffffffff : 0x00000000,

+ true,

+ dst->asRenderTarget());

+ setup_boolean_blendcoeffs(SkRegion::kReplace_Op, &drawState);

} else {

// draw directly into the result with the stencil set to make the pixels affected

// by the clip shape be non-zero.

@@ -638,13 +611,17 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

0xffff,

0xffff);

- drawState->setStencil(kStencilInElement);

- setup_boolean_blendcoeffs(drawState, op);

+ drawState.setStencil(kStencilInElement);

+ setup_boolean_blendcoeffs(op, &drawState);

}

- drawState->setAlpha(invert ? 0x00 : 0xff);

+ drawState.setAlpha(invert ? 0x00 : 0xff);

- if (!this->drawElement(dst, element, pr)) {

+ // We have to backup the drawstate because the drawElement call may call into

+ // renderers which consume it.

+ GrDrawState backupDrawState(drawState);

+ if (!this->drawElement(&drawState, dst, element, pr)) {

fAACache.reset();

return NULL;

}

@@ -652,14 +629,15 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

if (useTemp) {

// Now draw into the accumulator using the real operation and the temp buffer as a

// texture

- this->mergeMask(result,

+ this->mergeMask(&backupDrawState,

+ result,

temp,

op,

maskSpaceIBounds,

maskSpaceElementIBounds);

} else {

// Draw to the exterior pixels (those with a zero stencil value).

- drawState->setAlpha(invert ? 0xff : 0x00);

+ backupDrawState.setAlpha(invert ? 0xff : 0x00);

GR_STATIC_CONST_SAME_STENCIL(kDrawOutsideElement,

kZero_StencilOp,

@@ -667,15 +645,18 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

0xffff,

0x0000,

0xffff);

- drawState->setStencil(kDrawOutsideElement);

- fClipTarget->drawSimpleRect(clipSpaceIBounds);

- drawState->disableStencil();

+ backupDrawState.setStencil(kDrawOutsideElement);

+ fClipTarget->drawSimpleRect(&backupDrawState, clipSpaceIBounds);

}

} else {

+ GrDrawState drawState(translate);

+ drawState.enableState(GrDrawState::kCoverageDrawing_StateBit |

+ GrDrawState::kClip_StateBit);

// all the remaining ops can just be directly draw into the accumulation buffer

- drawState->setAlpha(0xff);

- setup_boolean_blendcoeffs(drawState, op);

- this->drawElement(result, element);

+ drawState.setAlpha(0xff);

+ setup_boolean_blendcoeffs(op, &drawState);

+ this->drawElement(&drawState, result, element);

}

@@ -686,18 +667,13 @@ GrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID,

////////////////////////////////////////////////////////////////////////////////

// Create a 1-bit clip mask in the stencil buffer. 'devClipBounds' are in device

// (as opposed to canvas) coordinates

-bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

+bool GrClipMaskManager::createStencilClipMask(GrRenderTarget* rt,

+ int32_t elementsGenID,

GrReducedClip::InitialState initialState,

const GrReducedClip::ElementList& elements,

const SkIRect& clipSpaceIBounds,

const SkIPoint& clipSpaceToStencilOffset) {

SkASSERT(kNone_ClipMaskType == fCurrClipMaskType);

- GrDrawState* drawState = fClipTarget->drawState();

- SkASSERT(drawState->isClipState());

- GrRenderTarget* rt = drawState->getRenderTarget();

SkASSERT(rt);

// TODO: dynamically attach a SB when needed.

@@ -708,7 +684,6 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

if (stencilBuffer->mustRenderClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset)) {

stencilBuffer->setLastClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset);

// Set the matrix so that rendered clip elements are transformed from clip to stencil space.

SkVector translate = {

SkIntToScalar(clipSpaceToStencilOffset.fX),

@@ -716,21 +691,11 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

};

SkMatrix matrix;

matrix.setTranslate(translate);

- GrDrawTarget::AutoGeometryAndStatePush agasp(fClipTarget, GrDrawTarget::kReset_ASRInit,

- &matrix);

- drawState = fClipTarget->drawState();

- drawState->setRenderTarget(rt);

// We set the current clip to the bounds so that our recursive draws are scissored to them.

SkIRect stencilSpaceIBounds(clipSpaceIBounds);

stencilSpaceIBounds.offset(clipSpaceToStencilOffset);

GrDrawTarget::AutoClipRestore acr(fClipTarget, stencilSpaceIBounds);

- drawState->enableState(GrDrawState::kClip_StateBit);

-#if !VISUALIZE_COMPLEX_CLIP

- drawState->enableState(GrDrawState::kNoColorWrites_StateBit);

-#endif

int clipBit = stencilBuffer->bits();

SkASSERT((clipBit <= 16) && "Ganesh only handles 16b or smaller stencil buffers");

@@ -744,20 +709,26 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

// with the existing clip.

for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) {

const Element* element = iter.get();

- bool fillInverted = false;

- // enabled at bottom of loop

- fClipMode = kIgnoreClip_StencilClipMode;

+ GrDrawState drawState(matrix);

+ drawState.setRenderTarget(rt);

+ drawState.enableState(GrDrawState::kClip_StateBit);

+ drawState.enableState(GrDrawState::kNoColorWrites_StateBit);

// if the target is MSAA then we want MSAA enabled when the clip is soft

if (rt->isMultisampled()) {

- drawState->setState(GrDrawState::kHWAntialias_StateBit, element->isAA());

+ drawState.setState(GrDrawState::kHWAntialias_StateBit, element->isAA());

}

+ bool fillInverted = false;

+ // enabled at bottom of loop

+ fClipMode = kIgnoreClip_StencilClipMode;

// This will be used to determine whether the clip shape can be rendered into the

// stencil with arbitrary stencil settings.

GrPathRenderer::StencilSupport stencilSupport;

SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);

SkRegion::Op op = element->getOp();

GrPathRenderer* pr = NULL;

@@ -771,9 +742,10 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

if (fillInverted) {

clipPath.toggleInverseFillType();

}

- pr = this->getContext()->getPathRenderer(clipPath,

+ pr = this->getContext()->getPathRenderer(fClipTarget,

+ &drawState,

+ clipPath,

stroke,

- fClipTarget,

false,

GrPathRendererChain::kStencilOnly_DrawType,

&stencilSupport);

@@ -807,17 +779,17 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

0xffff,

0x0000,

0xffff);

- SET_RANDOM_COLOR

if (Element::kRect_Type == element->getType()) {

- *drawState->stencil() = gDrawToStencil;

- fClipTarget->drawSimpleRect(element->getRect());

+ *drawState.stencil() = gDrawToStencil;

+ fClipTarget->drawSimpleRect(&drawState, element->getRect());

} else {

if (!clipPath.isEmpty()) {

+ GrDrawTarget::AutoGeometryPush agp(fClipTarget);

if (canRenderDirectToStencil) {

- *drawState->stencil() = gDrawToStencil;

- pr->drawPath(clipPath, stroke, fClipTarget, false);

+ *drawState.stencil() = gDrawToStencil;

+ pr->drawPath(fClipTarget, &drawState, clipPath, stroke, false);

} else {

- pr->stencilPath(clipPath, stroke, fClipTarget);

+ pr->stencilPath(fClipTarget, &drawState, clipPath, stroke);

}

@@ -827,20 +799,20 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

// element directly or a bounding rect of the entire clip.

fClipMode = kModifyClip_StencilClipMode;

for (int p = 0; p < passes; ++p) {

- *drawState->stencil() = stencilSettings[p];

+ GrDrawState drawStateCopy(drawState);

+ *drawStateCopy.stencil() = stencilSettings[p];

if (canDrawDirectToClip) {

if (Element::kRect_Type == element->getType()) {

- SET_RANDOM_COLOR

- fClipTarget->drawSimpleRect(element->getRect());

+ fClipTarget->drawSimpleRect(&drawStateCopy, element->getRect());

} else {

- SET_RANDOM_COLOR

- pr->drawPath(clipPath, stroke, fClipTarget, false);

+ GrDrawTarget::AutoGeometryPush agp(fClipTarget);

+ pr->drawPath(fClipTarget, &drawStateCopy, clipPath, stroke, false);

}

} else {

- SET_RANDOM_COLOR

// The view matrix is setup to do clip space -> stencil space translation, so

// draw rect in clip space.

- fClipTarget->drawSimpleRect(SkRect::Make(clipSpaceIBounds));

+ fClipTarget->drawSimpleRect(&drawStateCopy, SkRect::Make(clipSpaceIBounds));

}

@@ -852,7 +824,6 @@ bool GrClipMaskManager::createStencilClipMask(int32_t elementsGenID,

return true;

}

// mapping of clip-respecting stencil funcs to normal stencil funcs

// mapping depends on whether stencil-clipping is in effect.

static const GrStencilFunc

@@ -905,33 +876,32 @@ const GrStencilSettings& basic_apply_stencil_clip_settings() {

}

-void GrClipMaskManager::setDrawStateStencil(GrDrawState::AutoRestoreStencil* ars) {

+void GrClipMaskManager::setDrawStateStencil(GrDrawState* drawState,

+ GrDrawState::AutoRestoreStencil* ars) {

// We make two copies of the StencilSettings here (except in the early

// exit scenario. One copy from draw state to the stack var. Then another

// from the stack var to the gpu. We could make this class hold a ptr to

// GrGpu's fStencilSettings and eliminate the stack copy here.

- const GrDrawState& drawState = fClipTarget->getDrawState();

// use stencil for clipping if clipping is enabled and the clip

// has been written into the stencil.

GrStencilSettings settings;

// The GrGpu client may not be using the stencil buffer but we may need to

// enable it in order to respect a stencil clip.

- if (drawState.getStencil().isDisabled()) {

+ if (drawState->getStencil().isDisabled()) {

if (GrClipMaskManager::kRespectClip_StencilClipMode == fClipMode) {

settings = basic_apply_stencil_clip_settings();

} else {

return;

}

} else {

- settings = drawState.getStencil();

+ settings = drawState->getStencil();

}

// TODO: dynamically attach a stencil buffer

int stencilBits = 0;

- GrStencilBuffer* stencilBuffer = drawState.getRenderTarget()->getStencilBuffer();

+ GrStencilBuffer* stencilBuffer = drawState->getRenderTarget()->getStencilBuffer();

if (stencilBuffer) {

stencilBits = stencilBuffer->bits();

}

@@ -939,8 +909,8 @@ void GrClipMaskManager::setDrawStateStencil(GrDrawState::AutoRestoreStencil* ars

SkASSERT(fClipTarget->caps()->stencilWrapOpsSupport() || !settings.usesWrapOp());

SkASSERT(fClipTarget->caps()->twoSidedStencilSupport() || !settings.isTwoSided());

this->adjustStencilParams(&settings, fClipMode, stencilBits);

- ars->set(fClipTarget->drawState());

- fClipTarget->drawState()->setStencil(settings);

+ ars->set(drawState);

+ drawState->setStencil(settings);

}

void GrClipMaskManager::adjustStencilParams(GrStencilSettings* settings,

@@ -1045,14 +1015,12 @@ GrTexture* GrClipMaskManager::createSoftwareClipMask(int32_t elementsGenID,

SkMatrix matrix;

matrix.setTranslate(SkIntToScalar(-clipSpaceIBounds.fLeft),

SkIntToScalar(-clipSpaceIBounds.fTop));

- helper.init(maskSpaceIBounds, &matrix, false);

+ helper.init(maskSpaceIBounds, &matrix, false);

helper.clear(GrReducedClip::kAllIn_InitialState == initialState ? 0xFF : 0x00);

SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);

for (GrReducedClip::ElementList::Iter iter(elements.headIter()) ; iter.get(); iter.next()) {

const Element* element = iter.get();

SkRegion::Op op = element->getOp();

@@ -1066,12 +1034,10 @@ GrTexture* GrClipMaskManager::createSoftwareClipMask(int32_t elementsGenID,

// invert the entire scene

helper.draw(temp, SkRegion::kXOR_Op, false, 0xFF);

}

SkPath clipPath;

element->asPath(&clipPath);

clipPath.toggleInverseFillType();

helper.draw(clipPath, stroke, SkRegion::kReplace_Op, element->isAA(), 0x00);

continue;

}

@@ -1108,14 +1074,11 @@ void GrClipMaskManager::setClipTarget(GrClipTarget* clipTarget) {

fAACache.setContext(clipTarget->getContext());

}

-void GrClipMaskManager::adjustPathStencilParams(GrStencilSettings* settings) {

- const GrDrawState& drawState = fClipTarget->getDrawState();

+void GrClipMaskManager::adjustPathStencilParams(const GrStencilBuffer* stencilBuffer,

+ GrStencilSettings* settings) {

// TODO: dynamically attach a stencil buffer

- int stencilBits = 0;

- GrStencilBuffer* stencilBuffer = drawState.getRenderTarget()->getStencilBuffer();

if (stencilBuffer) {

- stencilBits = stencilBuffer->bits();

+ int stencilBits = stencilBuffer->bits();

this->adjustStencilParams(settings, fClipMode, stencilBits);

}

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