GrClipMaskManager.cpp revision 44701df5ce572ac3cccec785cf52103d3d5d14a5
11e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com/* 21e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com * Copyright 2012 Google Inc. 31e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com * 41e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com * Use of this source code is governed by a BSD-style license that can be 51e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com * found in the LICENSE file. 61e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com */ 71e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 81e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com#include "GrClipMaskManager.h" 9c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrAAConvexPathRenderer.h" 10c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrAAHairLinePathRenderer.h" 11bfe2b9d3a290d0153b82617cd6b65a4814fe89e3jvanverth@google.com#include "GrAARectRenderer.h" 12c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrDrawTargetCaps.h" 13c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrPaint.h" 14c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrPathRenderer.h" 151e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com#include "GrRenderTarget.h" 166bc1b5fab8554a9cb643277b4867965dd4535cd6bsalomon#include "GrRenderTargetPriv.h" 171e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com#include "GrStencilBuffer.h" 18c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrSWMaskHelper.h" 193a0cfeb96185934c0a36f1313f21b96c57ca6341joshualitt#include "SkRasterClip.h" 203a0cfeb96185934c0a36f1313f21b96c57ca6341joshualitt#include "SkStrokeRec.h" 213a0cfeb96185934c0a36f1313f21b96c57ca6341joshualitt#include "SkTLazy.h" 22a58fe35fdae3481cf43062f7032820c320c3d163joshualitt#include "effects/GrConvexPolyEffect.h" 239513143efa734bef0c1a0c7f945022572dbc8518egdaniel#include "effects/GrPorterDuffXferProcessor.h" 24a58fe35fdae3481cf43062f7032820c320c3d163joshualitt#include "effects/GrRRectEffect.h" 259513143efa734bef0c1a0c7f945022572dbc8518egdaniel#include "effects/GrTextureDomain.h" 26c6b3e48cb3a22d83ba3f4b9a614a5a35b05958a0bsalomon@google.com 278182fa0cac76e7e6d583aebba060229230516887bsalomon@google.comtypedef SkClipStack::Element Element; 2851a6286c241c1dc750d263ed9676079c898148b0bsalomon@google.com 2951a6286c241c1dc750d263ed9676079c898148b0bsalomon@google.com//////////////////////////////////////////////////////////////////////////////// 30e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.comnamespace { 31fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com// set up the draw state to enable the aa clipping mask. Besides setting up the 3208283afc265f1153834256fc1012519813ba6b73bsalomon@google.com// stage matrix this also alters the vertex layout 339853ccef19c200be93a6211f32589fa82a53067cjoshualittvoid setup_drawstate_aaclip(const SkIRect &devBound, 348dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder* pipelineBuilder, 359853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* result) { 368dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel SkASSERT(pipelineBuilder); 37a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 38b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix mat; 39309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon // We use device coords to compute the texture coordinates. We set our matrix to be a 40309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon // translation to the devBound, and then a scaling matrix to normalized coords. 41a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com mat.setIDiv(result->width(), result->height()); 42fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com mat.preTranslate(SkIntToScalar(-devBound.fLeft), 437b11289b4e4d117bbcee6d2460b057d0fcf6e437robertphillips@google.com SkIntToScalar(-devBound.fTop)); 44a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 457b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com SkIRect domainTexels = SkIRect::MakeWH(devBound.width(), devBound.height()); 464c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This could be a long-lived effect that is cached with the alpha-mask. 478dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor( 48eb6879f50a5564eeb981ec5616b55bf685eb76fcbsalomon@google.com GrTextureDomainEffect::Create(result, 497b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com mat, 50907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::MakeTexelDomain(result, domainTexels), 51907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::kDecal_Mode, 52b86add1ad37776818e1f730359ec587c9fdbff5fhumper@google.com GrTextureParams::kNone_FilterMode, 53309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon kDevice_GrCoordSet))->unref(); 54a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com} 55a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 56e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.combool path_needs_SW_renderer(GrContext* context, 579853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrDrawTarget* gpu, 588dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel const GrPipelineBuilder* pipelineBuilder, 598059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkMatrix& viewMatrix, 60e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com const SkPath& origPath, 61e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com const SkStrokeRec& stroke, 62e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com bool doAA) { 63e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // the gpu alpha mask will draw the inverse paths as non-inverse to a temp buffer 64e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com SkTCopyOnFirstWrite<SkPath> path(origPath); 65e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (path->isInverseFillType()) { 66e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com path.writable()->toggleInverseFillType(); 67e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 68e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // last (false) parameter disallows use of the SW path renderer 6945a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::DrawType type = doAA ? 7045a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kColorAntiAlias_DrawType : 7145a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kColor_DrawType; 7245a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com 738dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel return NULL == context->getPathRenderer(gpu, pipelineBuilder, viewMatrix, *path, stroke, 748dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel false, type); 75e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com} 766b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 776b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 78fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com/* 79fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * This method traverses the clip stack to see if the GrSoftwarePathRenderer 80fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * will be used on any element. If so, it returns true to indicate that the 81fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * entire clip should be rendered in SW and then uploaded en masse to the gpu. 82fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com */ 838dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::useSWOnlyPath(const GrPipelineBuilder* pipelineBuilder, 848059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 859853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrReducedClip::ElementList& elements) { 868a4fc40b02fa0a8300ade26863f4ddae69197d62robertphillips@google.com // TODO: generalize this function so that when 87fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // a clip gets complex enough it can just be done in SW regardless 88fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // of whether it would invoke the GrSoftwarePathRenderer. 895f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 90d21444aab7128c97f4e0eb5e9bf05111d5037292skia.committer@gmail.com 918059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 928059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 938059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 948059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 958059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 96bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) { 974c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 98f69a11b5c5dc5ae02489dfe7ca6432d641b9f121robertphillips@google.com // rects can always be drawn directly w/o using the software path 99e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // Skip rrects once we're drawing them directly. 100e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (Element::kRect_Type != element->getType()) { 101e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 102e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 1038dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (path_needs_SW_renderer(this->getContext(), fClipTarget, pipelineBuilder, translate, 1048059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt path, stroke, element->isAA())) { 105e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org return true; 106e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org } 107fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 108fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 1094c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return false; 110a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com} 111a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 1128dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::installClipEffects(GrPipelineBuilder* pipelineBuilder, 1138dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreEffects* are, 1149853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrReducedClip::ElementList& elements, 115e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org const SkVector& clipToRTOffset, 116217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein const SkRect* drawBounds) { 117e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRect boundsInClipSpace; 11849f085dddff10473b6ebf832a974288300224e60bsalomon if (drawBounds) { 119e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org boundsInClipSpace = *drawBounds; 120e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org boundsInClipSpace.offset(-clipToRTOffset.fX, -clipToRTOffset.fY); 121e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 122e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 1238dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel are->set(pipelineBuilder); 1248dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 125bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::ElementList::Iter iter(elements); 126e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool failed = false; 12749f085dddff10473b6ebf832a974288300224e60bsalomon while (iter.get()) { 128e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRegion::Op op = iter.get()->getOp(); 129e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool invert; 130e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool skip = false; 131e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org switch (op) { 132e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kReplace_Op: 133e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkASSERT(iter.get() == elements.head()); 134e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // Fallthrough, handled same as intersect. 135e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kIntersect_Op: 136e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org invert = false; 13749f085dddff10473b6ebf832a974288300224e60bsalomon if (drawBounds && iter.get()->contains(boundsInClipSpace)) { 138e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org skip = true; 139e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 140e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 141e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kDifference_Op: 142e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org invert = true; 143e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // We don't currently have a cheap test for whether a rect is fully outside an 144e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // element's primitive, so don't attempt to set skip. 145e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 146e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org default: 147e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 148e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 149e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 150e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (failed) { 151e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 152e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 153e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 154e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (!skip) { 155b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt GrPrimitiveEdgeType edgeType; 156e85a32d4f8ce7fb9b6aaae89137dbf3766d833f2robertphillips if (iter.get()->isAA()) { 157e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (rt->isMultisampled()) { 158217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein // Coverage based AA clips don't place nicely with MSAA. 159e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 160e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 161e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 162b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt edgeType = 163b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt invert ? kInverseFillAA_GrProcessorEdgeType : kFillAA_GrProcessorEdgeType; 164e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } else { 165b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt edgeType = 166b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt invert ? kInverseFillBW_GrProcessorEdgeType : kFillBW_GrProcessorEdgeType; 167e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 168b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt SkAutoTUnref<GrFragmentProcessor> fp; 169e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org switch (iter.get()->getType()) { 170e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kPath_Type: 171b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrConvexPolyEffect::Create(edgeType, iter.get()->getPath(), 172e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org &clipToRTOffset)); 173e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 174e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kRRect_Type: { 175e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRRect rrect = iter.get()->getRRect(); 176e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org rrect.offset(clipToRTOffset.fX, clipToRTOffset.fY); 177b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrRRectEffect::Create(edgeType, rrect)); 178e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 179e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 180e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kRect_Type: { 181e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRect rect = iter.get()->getRect(); 182e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org rect.offset(clipToRTOffset.fX, clipToRTOffset.fY); 183b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrConvexPolyEffect::Create(edgeType, rect)); 184e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 185e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 186e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org default: 187e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 188e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 189b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt if (fp) { 1908dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor(fp); 191217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein } else { 192e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 193e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 194e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 195e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 196217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein iter.next(); 197e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 198e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 199e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (failed) { 200e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org are->set(NULL); 201e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 202e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org return !failed; 203e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org} 204e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 205f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 2066b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// sort out what kind of clip mask needs to be created: alpha, stencil, 2076b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// scissor, or entirely software 2088dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::setupClipping(GrPipelineBuilder* pipelineBuilder, 2098dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreEffects* are, 2108dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreStencil* ars, 2113e79124a69d4806f0a1a776090bff718e1b90970bsalomon GrScissorState* scissorState, 2129853ccef19c200be93a6211f32589fa82a53067cjoshualitt const SkRect* devBounds) { 213c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kNone_ClipMaskType; 2147a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt if (kRespectClip_StencilClipMode == fClipMode) { 2157a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kIgnoreClip_StencilClipMode; 2167a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt } 217a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 218bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::ElementList elements(16); 219d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org int32_t genID; 220bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::InitialState initialState; 2214c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect clipSpaceIBounds; 2224c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com bool requiresAA; 2238dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 2244c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 2251e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // GrDrawTarget should have filtered this for us 22649f085dddff10473b6ebf832a974288300224e60bsalomon SkASSERT(rt); 2271e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 22844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIRect clipSpaceRTIBounds = SkIRect::MakeWH(rt->width(), rt->height()); 22944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt const GrClip& clip = pipelineBuilder->clip(); 23044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt // TODO we shouldn't be ignoring the clip mask manager's clip. This is temporary. 23144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt bool ignoreClip = clip.isWideOpen(clipSpaceRTIBounds) || 23244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrClip::kIRect_ClipType == clip.clipType(); 2334c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (!ignoreClip) { 23444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt // The clip mask manager always draws with a single IRect so we special case that logic here 23544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt if (GrClip::kIRect_ClipType == clip.clipType()) { 23644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt initialState = GrReducedClip::kAllIn_InitialState; 23744701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt clipSpaceIBounds = clip.irect(); 23844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkNEW_INSERT_AT_LLIST_HEAD(&elements, 23944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt Element, 24044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt (SkRect::Make(clipSpaceIBounds), 24144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkRegion::kIntersect_Op, false)); 24244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt } else { 24344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt clipSpaceRTIBounds.offset(clip.origin()); 24444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrReducedClip::ReduceClipStack(*clip.clipStack(), 24544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt clipSpaceRTIBounds, 24644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt &elements, 24744701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt &genID, 24844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt &initialState, 24944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt &clipSpaceIBounds, 25044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt &requiresAA); 25144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt if (elements.isEmpty()) { 25244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt if (GrReducedClip::kAllIn_InitialState == initialState) { 25344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt ignoreClip = clipSpaceIBounds == clipSpaceRTIBounds; 25444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt } else { 25544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt return false; 25644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt } 2574c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 2584c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 2594c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 2603e11c0bd92fbd12f59080c3f9450201d6105db83robertphillips@google.com 2614c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (ignoreClip) { 2628dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 2634c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return true; 264a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 265a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 266e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // An element count of 4 was chosen because of the common pattern in Blink of: 267e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect RR 268e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // diff RR 269e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect convex_poly 270e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect convex_poly 271e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // when drawing rounded div borders. This could probably be tuned based on a 272e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // configuration's relative costs of switching RTs to generate a mask vs 273e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // longer shaders. 274e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (elements.count() <= 4) { 27544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkVector clipToRTOffset = { SkIntToScalar(-clip.origin().fX), 27644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIntToScalar(-clip.origin().fY) }; 277e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (elements.isEmpty() || 278259656779334689ab1624ec4e2e234b35fe4024bbsalomon this->installClipEffects(pipelineBuilder, are, elements, clipToRTOffset, devBounds)) { 279217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein SkIRect scissorSpaceIBounds(clipSpaceIBounds); 28044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt scissorSpaceIBounds.offset(-clip.origin()); 281217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein if (NULL == devBounds || 282217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein !SkRect::Make(scissorSpaceIBounds).contains(*devBounds)) { 28377b1307c1f5dac019575a6d431d5ce657370c4fbjoshualitt scissorState->set(scissorSpaceIBounds); 284e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 2858dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 28665ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org return true; 28765ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org } 28865ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org } 289d3066bd9b4a37cf4a39e7df7e1432f3df10dbc67bsalomon@google.com 290a3e5c63ab0264332169df4583a8a7da186fb4e66robertphillips@google.com // If MSAA is enabled we can do everything in the stencil buffer. 2914c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (0 == rt->numSamples() && requiresAA) { 2926b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com GrTexture* result = NULL; 293a3e5c63ab0264332169df4583a8a7da186fb4e66robertphillips@google.com 2948059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // The top-left of the mask corresponds to the top-left corner of the bounds. 2958059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkVector clipToMaskOffset = { 2968059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkIntToScalar(-clipSpaceIBounds.fLeft), 2978059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkIntToScalar(-clipSpaceIBounds.fTop) 2988059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt }; 2998059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 3008dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (this->useSWOnlyPath(pipelineBuilder, clipToMaskOffset, elements)) { 3014c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The clip geometry is complex enough that it will be more efficient to create it 3024c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // entirely in software 3034c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com result = this->createSoftwareClipMask(genID, 3044c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com initialState, 3054c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3068059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipToMaskOffset, 3074c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds); 3084c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } else { 3094c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com result = this->createAlphaClipMask(genID, 3104c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com initialState, 3114c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3128059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipToMaskOffset, 3134c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds); 3144c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 3156b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 31649f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 3174c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The mask's top left coord should be pinned to the rounded-out top left corner of 3184c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // clipSpace bounds. We determine the mask's position WRT to the render target here. 3194c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect rtSpaceMaskBounds = clipSpaceIBounds; 32044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt rtSpaceMaskBounds.offset(-clip.origin()); 3218dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel setup_drawstate_aaclip(rtSpaceMaskBounds, pipelineBuilder, result); 3228dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 323f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com return true; 324f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 3254c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // if alpha clip mask creation fails fall through to the non-AA code paths 326f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 327f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3284c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // Either a hard (stencil buffer) clip was explicitly requested or an anti-aliased clip couldn't 3294c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // be created. In either case, free up the texture in the anti-aliased mask cache. 3304c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // TODO: this may require more investigation. Ganesh performs a lot of utility draws (e.g., 3314c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // clears, InOrderDrawBuffer playbacks) that hit the stencil buffer path. These may be 3324c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // "incorrectly" clearing the AA cache. 3335acc0e36d987dff3172fd45a14b66c52a51d49e4robertphillips@google.com fAACache.reset(); 3345acc0e36d987dff3172fd45a14b66c52a51d49e4robertphillips@google.com 3351e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // use the stencil clip if we can't represent the clip as a rectangle. 33644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIPoint clipSpaceToStencilSpaceOffset = -clip.origin(); 3379853ccef19c200be93a6211f32589fa82a53067cjoshualitt this->createStencilClipMask(rt, 3389853ccef19c200be93a6211f32589fa82a53067cjoshualitt genID, 339d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org initialState, 3404c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3414c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds, 3424c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceToStencilSpaceOffset); 3434c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 3444c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This must occur after createStencilClipMask. That function may change the scissor. Also, it 3454c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // only guarantees that the stencil mask is correct within the bounds it was passed, so we must 3464c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // use both stencil and scissor test to the bounds for the final draw. 3474c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect scissorSpaceIBounds(clipSpaceIBounds); 3484c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com scissorSpaceIBounds.offset(clipSpaceToStencilSpaceOffset); 34977b1307c1f5dac019575a6d431d5ce657370c4fbjoshualitt scissorState->set(scissorSpaceIBounds); 3508dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 3511e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return true; 3521e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 3531e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 3541e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.comnamespace { 355f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 3568dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel// Set a coverage drawing XPF on the pipelineBuilder for the given op and invertCoverage mode 3578dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid set_coverage_drawing_xpf(SkRegion::Op op, bool invertCoverage, 3588dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder* pipelineBuilder) { 3598750924a1470e8215b2a344155259b93062d3fa2egdaniel SkASSERT(op <= SkRegion::kLastOp); 3608dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setCoverageSetOpXPFactory(op, invertCoverage); 361f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 36272176b2d38db005863a54e3dd6657bbabd068bb6robertphillips@google.com} 363f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 364f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 3658dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::drawElement(GrPipelineBuilder* pipelineBuilder, 3668059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkMatrix& viewMatrix, 3679853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* target, 368e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com const SkClipStack::Element* element, 369e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr) { 3709853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrDrawTarget::AutoGeometryPush agp(fClipTarget); 371f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3728dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(target->asRenderTarget()); 373f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3748750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color we use to draw does not matter since we will always be using a GrCoverageSetOpXP 3758750924a1470e8215b2a344155259b93062d3fa2egdaniel // which ignores color. 3768750924a1470e8215b2a344155259b93062d3fa2egdaniel GrColor color = GrColor_WHITE; 3778750924a1470e8215b2a344155259b93062d3fa2egdaniel 378e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // TODO: Draw rrects directly here. 3798182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com switch (element->getType()) { 380e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org case Element::kEmpty_Type: 381e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkDEBUGFAIL("Should never get here with an empty element."); 382e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org break; 3838182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com case Element::kRect_Type: 384b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt // TODO: Do rects directly to the accumulator using a aa-rect GrProcessor that covers 385b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt // the entire mask bounds and writes 0 outside the rect. 3868182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (element->isAA()) { 3878059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkRect devRect = element->getRect(); 3888059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix.mapRect(&devRect); 389329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt this->getContext()->getAARectRenderer()->fillAARect(fClipTarget, 3908dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder, 3912e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt color, 3928059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix, 393a58fe35fdae3481cf43062f7032820c320c3d163joshualitt element->getRect(), 3948059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt devRect); 3958182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } else { 3968dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel fClipTarget->drawSimpleRect(pipelineBuilder, color, viewMatrix, element->getRect()); 3978182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } 3988182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com return true; 399e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org default: { 400e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 401e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 402b3eb687f8a89eb1eacd1afb4016401eb392f66abjvanverth path.setIsVolatile(true); 403e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (path.isInverseFillType()) { 404e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org path.toggleInverseFillType(); 405e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 4065f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 407e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 408e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRendererChain::DrawType type; 409e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com type = element->isAA() ? GrPathRendererChain::kColorAntiAlias_DrawType : 410e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRendererChain::kColor_DrawType; 4118dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pr = this->getContext()->getPathRenderer(fClipTarget, pipelineBuilder, viewMatrix, 4128dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel path, stroke, false, type); 413e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 414e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 4154c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return false; 4164c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 4179853ccef19c200be93a6211f32589fa82a53067cjoshualitt 4188dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pr->drawPath(fClipTarget, pipelineBuilder, color, viewMatrix, path, stroke, 4198dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel element->isAA()); 4204c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com break; 4214c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 422f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 423f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com return true; 424f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 425f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 4268dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::canStencilAndDrawElement(GrPipelineBuilder* pipelineBuilder, 4279853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* target, 4289853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrPathRenderer** pr, 4299853ccef19c200be93a6211f32589fa82a53067cjoshualitt const SkClipStack::Element* element) { 4308dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(target->asRenderTarget()); 431b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 432e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (Element::kRect_Type == element->getType()) { 433e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org return true; 434e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org } else { 435e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // We shouldn't get here with an empty clip element. 436e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkASSERT(Element::kEmpty_Type != element->getType()); 437e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 438e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 439e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (path.isInverseFillType()) { 440e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org path.toggleInverseFillType(); 441b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 442e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 443e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::DrawType type = element->isAA() ? 444e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::kStencilAndColorAntiAlias_DrawType : 445e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::kStencilAndColor_DrawType; 4468dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pr = this->getContext()->getPathRenderer(fClipTarget, pipelineBuilder, SkMatrix::I(), path, 4478059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt stroke, false, type); 44849f085dddff10473b6ebf832a974288300224e60bsalomon return SkToBool(*pr); 449b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 450b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com} 451b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 4528dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid GrClipMaskManager::mergeMask(GrPipelineBuilder* pipelineBuilder, 4539853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* dstMask, 4547b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com GrTexture* srcMask, 4557b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com SkRegion::Op op, 456fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkIRect& dstBound, 457fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkIRect& srcBound) { 4588dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(dstMask->asRenderTarget()); 459f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 4608750924a1470e8215b2a344155259b93062d3fa2egdaniel // We want to invert the coverage here 4618dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, false, pipelineBuilder); 46272b2e6fff3f54c6aa80a98eab4c73f02a8cd450dskia.committer@gmail.com 463b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix sampleM; 4647b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com sampleM.setIDiv(srcMask->width(), srcMask->height()); 465956b310f13c7412c035406c658ff16ca85eac656skia.committer@gmail.com 4668dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor( 4677b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com GrTextureDomainEffect::Create(srcMask, 4687b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com sampleM, 469907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::MakeTexelDomain(srcMask, srcBound), 470907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::kDecal_Mode, 471b86add1ad37776818e1f730359ec587c9fdbff5fhumper@google.com GrTextureParams::kNone_FilterMode))->unref(); 4728750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 47344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(pipelineBuilder, 47444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 47544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkMatrix::I(), 4768dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel SkRect::Make(dstBound)); 477f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 478f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 479427cf28861867c0ea9aafca3a23878ec4068ad99bsalomonGrTexture* GrClipMaskManager::createTempMask(int width, int height) { 480f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon GrSurfaceDesc desc; 4813f490a0c0170feb8b53c220d6c5331c23aeb3f23bsalomon desc.fFlags = kRenderTarget_GrSurfaceFlag; 4824c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com desc.fWidth = width; 4834c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com desc.fHeight = height; 48451d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon if (this->getContext()->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) { 48551d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon desc.fConfig = kAlpha_8_GrPixelConfig; 48651d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon } else { 48751d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon desc.fConfig = kRGBA_8888_GrPixelConfig; 48851d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon } 4896b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 490329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt return this->getContext()->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch); 4916d62df404bf420bedff4d7b5edd061740a673d44robertphillips@google.com} 4926d62df404bf420bedff4d7b5edd061740a673d44robertphillips@google.com 4936b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 494ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// Return the texture currently in the cache if it exists. Otherwise, return NULL 495ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevskiGrTexture* GrClipMaskManager::getCachedMaskTexture(int32_t elementsGenID, 496ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski const SkIRect& clipSpaceIBounds) { 497d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org bool cached = fAACache.canReuse(elementsGenID, clipSpaceIBounds); 4984c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (!cached) { 499ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return NULL; 500ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski } 5014c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 502ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return fAACache.getLastMask(); 503ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski} 504f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 505ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski//////////////////////////////////////////////////////////////////////////////// 506ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// Allocate a texture in the texture cache. This function returns the texture 507ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// allocated (or NULL on error). 508ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevskiGrTexture* GrClipMaskManager::allocMaskTexture(int32_t elementsGenID, 509ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski const SkIRect& clipSpaceIBounds, 510ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski bool willUpload) { 511ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // Since we are setting up the cache we should free up the 512ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // currently cached mask so it can be reused. 513ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.reset(); 514a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 515f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon GrSurfaceDesc desc; 516f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon desc.fFlags = willUpload ? kNone_GrSurfaceFlags : kRenderTarget_GrSurfaceFlag; 517ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fWidth = clipSpaceIBounds.width(); 518ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fHeight = clipSpaceIBounds.height(); 519ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fConfig = kRGBA_8888_GrPixelConfig; 520ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski if (willUpload || this->getContext()->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) { 521ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // We would always like A8 but it isn't supported on all platforms 522ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fConfig = kAlpha_8_GrPixelConfig; 5238fff356c8505f2ac78e1fc9dc17c1192e3a608e4robertphillips@google.com } 5248fff356c8505f2ac78e1fc9dc17c1192e3a608e4robertphillips@google.com 525ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.acquireMask(elementsGenID, desc, clipSpaceIBounds); 526ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return fAACache.getLastMask(); 5276b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 528f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5296b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 5306b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// Create a 8-bit clip mask in alpha 531d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.orgGrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID, 532bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::InitialState initialState, 533bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina const GrReducedClip::ElementList& elements, 5348059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 5354c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds) { 536f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 537c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com 538ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // First, check for cached texture 539ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski GrTexture* result = this->getCachedMaskTexture(elementsGenID, clipSpaceIBounds); 54049f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 541c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 5424c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 5436b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 544f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 545ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // There's no texture in the cache. Let's try to allocate it then. 546ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski result = this->allocMaskTexture(elementsGenID, clipSpaceIBounds, false); 5474c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (NULL == result) { 548f105b109264f71dfb0bfd9977e6a5dd0a5a12f57robertphillips@google.com fAACache.reset(); 5494c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return NULL; 550f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 551f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5528059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 5538059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 5548059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 5558059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 5568059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 5574c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The texture may be larger than necessary, this rect represents the part of the texture 5584c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // we populate with a rasterization of the clip. 5594c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect maskSpaceIBounds = SkIRect::MakeWH(clipSpaceIBounds.width(), clipSpaceIBounds.height()); 560f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5617b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // The scratch texture that we are drawing into can be substantially larger than the mask. Only 5627b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // clear the part that we care about. 563329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clear(&maskSpaceIBounds, 564329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt GrReducedClip::kAllIn_InitialState == initialState ? 0xffffffff : 0x00000000, 565329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt true, 566329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt result->asRenderTarget()); 567d9f7503e0cb0c4db856f53b4bdeec1332db6f296skia.committer@gmail.com 568b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // When we use the stencil in the below loop it is important to have this clip installed. 569b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // The second pass that zeros the stencil buffer renders the rect maskSpaceIBounds so the first 570b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // pass must not set values outside of this bounds or stencil values outside the rect won't be 571b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // cleared. 57244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrClip clip(maskSpaceIBounds); 573427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon SkAutoTUnref<GrTexture> temp; 5749853ccef19c200be93a6211f32589fa82a53067cjoshualitt 575f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com // walk through each clip element and perform its set op 576bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter = elements.headIter(); iter.get(); iter.next()) { 5774c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 5788182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 579b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com bool invert = element->isInverseFilled(); 580b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (invert || SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) { 5818dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 5829853ccef19c200be93a6211f32589fa82a53067cjoshualitt 58344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pipelineBuilder.setClip(clip); 584e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr = NULL; 5858dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel bool useTemp = !this->canStencilAndDrawElement(&pipelineBuilder, result, &pr, element); 586b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GrTexture* dst; 5874c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This is the bounds of the clip element in the space of the alpha-mask. The temporary 5887b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // mask buffer can be substantially larger than the actually clip stack element. We 5897b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // touch the minimum number of pixels necessary and use decal mode to combine it with 590b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // the accumulator. 591fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org SkIRect maskSpaceElementIBounds; 592b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 593b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (useTemp) { 594b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (invert) { 595b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceElementIBounds = maskSpaceIBounds; 596b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } else { 597fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org SkRect elementBounds = element->getBounds(); 598b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com elementBounds.offset(clipToMaskOffset); 599b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com elementBounds.roundOut(&maskSpaceElementIBounds); 600b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 601b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 602427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon if (!temp) { 603427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon temp.reset(this->createTempMask(maskSpaceIBounds.fRight, 604427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon maskSpaceIBounds.fBottom)); 605427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon if (!temp) { 606427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon fAACache.reset(); 607427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon return NULL; 608427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon } 609a7aedfec9e28db36c97e49f11f2bc2e0eb624c30skia.committer@gmail.com } 610427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon dst = temp; 611b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // clear the temp target and set blend to replace 612329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clear(&maskSpaceElementIBounds, 6139853ccef19c200be93a6211f32589fa82a53067cjoshualitt invert ? 0xffffffff : 0x00000000, 6149853ccef19c200be93a6211f32589fa82a53067cjoshualitt true, 6159853ccef19c200be93a6211f32589fa82a53067cjoshualitt dst->asRenderTarget()); 6168dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(SkRegion::kReplace_Op, invert, &pipelineBuilder); 6174c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } else { 618b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // draw directly into the result with the stencil set to make the pixels affected 619b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // by the clip shape be non-zero. 620b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com dst = result; 621b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL(kStencilInElement, 622b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kReplace_StencilOp, 623b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kReplace_StencilOp, 624b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kAlways_StencilFunc, 625b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 626b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 627b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff); 6288dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setStencil(kStencilInElement); 6298dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, invert, &pipelineBuilder); 6304c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 6317b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com 6328dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (!this->drawElement(&pipelineBuilder, translate, dst, element, pr)) { 633e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com fAACache.reset(); 634e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com return NULL; 6354c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 636f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 637b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (useTemp) { 6388dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder backgroundPipelineBuilder; 6398dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setRenderTarget(result->asRenderTarget()); 6408fc6c2d82c1f30ff82274334c01f0799def6a609joshualitt 641b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // Now draw into the accumulator using the real operation and the temp buffer as a 642b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // texture 6438dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->mergeMask(&backgroundPipelineBuilder, 6449853ccef19c200be93a6211f32589fa82a53067cjoshualitt result, 645427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon temp, 646b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com op, 647b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceIBounds, 648b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceElementIBounds); 649b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } else { 6508dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder backgroundPipelineBuilder; 6518dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setRenderTarget(result->asRenderTarget()); 6528fc6c2d82c1f30ff82274334c01f0799def6a609joshualitt 6538dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, !invert, &backgroundPipelineBuilder); 654b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // Draw to the exterior pixels (those with a zero stencil value). 655b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL(kDrawOutsideElement, 656b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kZero_StencilOp, 657b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kZero_StencilOp, 658b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kEqual_StencilFunc, 659b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 660b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0x0000, 661b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff); 6628dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setStencil(kDrawOutsideElement); 6638750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 6648dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel fClipTarget->drawSimpleRect(&backgroundPipelineBuilder, GrColor_WHITE, translate, 6658059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipSpaceIBounds); 666b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 667f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } else { 6688dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 6699853ccef19c200be93a6211f32589fa82a53067cjoshualitt 670e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // all the remaining ops can just be directly draw into the accumulation buffer 6718dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, false, &pipelineBuilder); 6728750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 6738dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->drawElement(&pipelineBuilder, translate, result, element); 674f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 675f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 676f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 677c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 6784c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 6791e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 6801e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 681f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 682fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com// Create a 1-bit clip mask in the stencil buffer. 'devClipBounds' are in device 683f8d904a7eed435b9de68fd2eef6d7f3c59fcc9ccrobertphillips@google.com// (as opposed to canvas) coordinates 6849853ccef19c200be93a6211f32589fa82a53067cjoshualittbool GrClipMaskManager::createStencilClipMask(GrRenderTarget* rt, 6859853ccef19c200be93a6211f32589fa82a53067cjoshualitt int32_t elementsGenID, 686bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::InitialState initialState, 687bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina const GrReducedClip::ElementList& elements, 6884c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds, 6894c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIPoint& clipSpaceToStencilOffset) { 690f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 69149f085dddff10473b6ebf832a974288300224e60bsalomon SkASSERT(rt); 6921e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 6936bc1b5fab8554a9cb643277b4867965dd4535cd6bsalomon GrStencilBuffer* stencilBuffer = rt->renderTargetPriv().attachStencilBuffer(); 6941e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com if (NULL == stencilBuffer) { 6951e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return false; 6961e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 6971e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 698d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org if (stencilBuffer->mustRenderClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset)) { 699d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org stencilBuffer->setLastClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset); 700137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com // Set the matrix so that rendered clip elements are transformed from clip to stencil space. 701137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkVector translate = { 702137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkIntToScalar(clipSpaceToStencilOffset.fX), 703137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkIntToScalar(clipSpaceToStencilOffset.fY) 704137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com }; 7058059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix viewMatrix; 7068059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix.setTranslate(translate); 7071e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7089f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com // We set the current clip to the bounds so that our recursive draws are scissored to them. 7099f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com SkIRect stencilSpaceIBounds(clipSpaceIBounds); 7109f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com stencilSpaceIBounds.offset(clipSpaceToStencilOffset); 71144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrClip clip(stencilSpaceIBounds); 7121e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7131e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com int clipBit = stencilBuffer->bits(); 7144c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkASSERT((clipBit <= 16) && "Ganesh only handles 16b or smaller stencil buffers"); 7151e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com clipBit = (1 << (clipBit-1)); 7161e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 717329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clearStencilClip(stencilSpaceIBounds, 718329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt GrReducedClip::kAllIn_InitialState == initialState, 719329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt rt); 7201e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7211e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // walk through each clip element and perform its set op 7221e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // with the existing clip. 723bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) { 7244c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 7259853ccef19c200be93a6211f32589fa82a53067cjoshualitt 7268dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 72744701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pipelineBuilder.setClip(clip); 7288dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setRenderTarget(rt); 729080e673b10ac607305f140ddb245e140ccde40c6egdaniel 7308dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setDisableColorXPFactory(); 7319853ccef19c200be93a6211f32589fa82a53067cjoshualitt 732ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com // if the target is MSAA then we want MSAA enabled when the clip is soft 733ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com if (rt->isMultisampled()) { 7348dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setState(GrPipelineBuilder::kHWAntialias_StateBit, element->isAA()); 735ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com } 7361e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7379853ccef19c200be93a6211f32589fa82a53067cjoshualitt bool fillInverted = false; 7389853ccef19c200be93a6211f32589fa82a53067cjoshualitt // enabled at bottom of loop 7399853ccef19c200be93a6211f32589fa82a53067cjoshualitt fClipMode = kIgnoreClip_StencilClipMode; 7409853ccef19c200be93a6211f32589fa82a53067cjoshualitt 74145a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com // This will be used to determine whether the clip shape can be rendered into the 74245a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com // stencil with arbitrary stencil settings. 74345a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRenderer::StencilSupport stencilSupport; 7441e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7455f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 7468182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 747f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 748e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr = NULL; 749e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath clipPath; 7508182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 75145a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com stencilSupport = GrPathRenderer::kNoRestriction_StencilSupport; 7521e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com fillInverted = false; 7538afae61a57f87e4a50578effce6c428031499301tomhudson@google.com } else { 754e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&clipPath); 755e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org fillInverted = clipPath.isInverseFillType(); 756e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (fillInverted) { 757e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org clipPath.toggleInverseFillType(); 758e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 7599853ccef19c200be93a6211f32589fa82a53067cjoshualitt pr = this->getContext()->getPathRenderer(fClipTarget, 7608dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel &pipelineBuilder, 7618059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix, 7629853ccef19c200be93a6211f32589fa82a53067cjoshualitt clipPath, 76345a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com stroke, 76445a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com false, 76545a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kStencilOnly_DrawType, 766e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com &stencilSupport); 767e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 7681e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return false; 7691e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 7701e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 7711e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7721e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com int passes; 7731e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com GrStencilSettings stencilSettings[GrStencilSettings::kMaxStencilClipPasses]; 7741e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 77545a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com bool canRenderDirectToStencil = 77645a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRenderer::kNoRestriction_StencilSupport == stencilSupport; 7771e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com bool canDrawDirectToClip; // Given the renderer, the element, 7784c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // fill rule, and set operation can 7794c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // we render the element directly to 7804c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // stencil bit used for clipping. 7814c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com canDrawDirectToClip = GrStencilSettings::GetClipPasses(op, 7824c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com canRenderDirectToStencil, 7834c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipBit, 7844c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com fillInverted, 7854c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com &passes, 7864c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com stencilSettings); 7871e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7881e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // draw the element to the client stencil bits if necessary 7891e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com if (!canDrawDirectToClip) { 7901e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com GR_STATIC_CONST_SAME_STENCIL(gDrawToStencil, 7914c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kIncClamp_StencilOp, 7924c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kIncClamp_StencilOp, 7934c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kAlways_StencilFunc, 7944c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0xffff, 7954c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0x0000, 7964c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0xffff); 7978182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 7988dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilder.stencil() = gDrawToStencil; 79944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilder, 80044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 80144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8028059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt element->getRect()); 8031e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 804e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (!clipPath.isEmpty()) { 8059853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrDrawTarget::AutoGeometryPush agp(fClipTarget); 80619dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org if (canRenderDirectToStencil) { 8078dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilder.stencil() = gDrawToStencil; 80844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->drawPath(fClipTarget, &pipelineBuilder, GrColor_WHITE, 80944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, clipPath, stroke, false); 81019dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org } else { 81144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->stencilPath(fClipTarget, &pipelineBuilder, viewMatrix, 81244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt clipPath, stroke); 81319dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org } 8141e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8151e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8161e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8171e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 8181e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // now we modify the clip bit by rendering either the clip 8191e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // element directly or a bounding rect of the entire clip. 8207a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kModifyClip_StencilClipMode; 8211e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com for (int p = 0; p < passes; ++p) { 8228dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilderCopy(pipelineBuilder); 8238dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilderCopy.stencil() = stencilSettings[p]; 8249853ccef19c200be93a6211f32589fa82a53067cjoshualitt 8251e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com if (canDrawDirectToClip) { 8268182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 82744701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilderCopy, 82844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 82944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8302e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt element->getRect()); 8311e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 8329853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrDrawTarget::AutoGeometryPush agp(fClipTarget); 83344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->drawPath(fClipTarget, &pipelineBuilderCopy, GrColor_WHITE, 83444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, clipPath, stroke, false); 8351e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8361e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 8374c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The view matrix is setup to do clip space -> stencil space translation, so 8384c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // draw rect in clip space. 83944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilderCopy, 84044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 84144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8422e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt SkRect::Make(clipSpaceIBounds)); 8431e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8441e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8451e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8461e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 847c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com // set this last because recursive draws may overwrite it back to kNone. 848f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 849c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kStencil_ClipMaskType; 8507a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kRespectClip_StencilClipMode; 8511e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return true; 8521e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 8531e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 854411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com// mapping of clip-respecting stencil funcs to normal stencil funcs 855411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com// mapping depends on whether stencil-clipping is in effect. 856fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.comstatic const GrStencilFunc 857411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com gSpecialToBasicStencilFunc[2][kClipStencilFuncCount] = { 858411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com {// Stencil-Clipping is DISABLED, we are effectively always inside the clip 859411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // In the Clip Funcs 860411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kAlways_StencilFunc, // kAlwaysIfInClip_StencilFunc 861411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kEqualIfInClip_StencilFunc 862411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kLessIfInClip_StencilFunc 863411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLEqual_StencilFunc, // kLEqualIfInClip_StencilFunc 864411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // Special in the clip func that forces user's ref to be 0. 865411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kNotEqual_StencilFunc, // kNonZeroIfInClip_StencilFunc 866411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // make ref 0 and do normal nequal. 867411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com }, 868411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com {// Stencil-Clipping is ENABLED 869411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // In the Clip Funcs 870411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kAlwaysIfInClip_StencilFunc 871411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // eq stencil clip bit, mask 872411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // out user bits. 873411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 874411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kEqualIfInClip_StencilFunc 875411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // add stencil bit to mask and ref 876411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 877411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kLessIfInClip_StencilFunc 878411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLEqual_StencilFunc, // kLEqualIfInClip_StencilFunc 879411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // for both of these we can add 880411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // the clip bit to the mask and 881411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // ref and compare as normal 882411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // Special in the clip func that forces user's ref to be 0. 883411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kNonZeroIfInClip_StencilFunc 884411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // make ref have only the clip bit set 885411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // and make comparison be less 886411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // 10..0 < 1..user_bits.. 887411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 888411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com}; 889411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 890a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comnamespace { 891a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com// Sets the settings to clip against the stencil buffer clip while ignoring the 892a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com// client bits. 893a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comconst GrStencilSettings& basic_apply_stencil_clip_settings() { 894a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // stencil settings to use when clip is in stencil 895a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL_STRUCT(gSettings, 896a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kKeep_StencilOp, 897a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kKeep_StencilOp, 898a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kAlwaysIfInClip_StencilFunc, 899a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 0x0000, 900a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 0x0000, 901fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 0x0000); 902a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return *GR_CONST_STENCIL_SETTINGS_PTR_FROM_STRUCT_PTR(&gSettings); 903a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 904a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 905a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 9068dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid GrClipMaskManager::setPipelineBuilderStencil(GrPipelineBuilder* pipelineBuilder, 9078dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreStencil* ars) { 908a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // We make two copies of the StencilSettings here (except in the early 909a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // exit scenario. One copy from draw state to the stack var. Then another 910a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // from the stack var to the gpu. We could make this class hold a ptr to 911a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // GrGpu's fStencilSettings and eliminate the stack copy here. 912a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 913a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // use stencil for clipping if clipping is enabled and the clip 914a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // has been written into the stencil. 915a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilSettings settings; 9169853ccef19c200be93a6211f32589fa82a53067cjoshualitt 917a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // The GrGpu client may not be using the stencil buffer but we may need to 918a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // enable it in order to respect a stencil clip. 9198dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (pipelineBuilder->getStencil().isDisabled()) { 9207a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt if (GrClipMaskManager::kRespectClip_StencilClipMode == fClipMode) { 921a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings = basic_apply_stencil_clip_settings(); 922a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 923a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return; 924a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 925a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 9268dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel settings = pipelineBuilder->getStencil(); 927a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 928a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 929a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int stencilBits = 0; 9306bc1b5fab8554a9cb643277b4867965dd4535cd6bsalomon GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 9316bc1b5fab8554a9cb643277b4867965dd4535cd6bsalomon GrStencilBuffer* stencilBuffer = rt->renderTargetPriv().attachStencilBuffer(); 93249f085dddff10473b6ebf832a974288300224e60bsalomon if (stencilBuffer) { 933a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com stencilBits = stencilBuffer->bits(); 934a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 935a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 936329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt SkASSERT(fClipTarget->caps()->stencilWrapOpsSupport() || !settings.usesWrapOp()); 937329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt SkASSERT(fClipTarget->caps()->twoSidedStencilSupport() || !settings.isTwoSided()); 9387a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt this->adjustStencilParams(&settings, fClipMode, stencilBits); 9398dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel ars->set(pipelineBuilder); 9408dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setStencil(settings); 941a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 942a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 943a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comvoid GrClipMaskManager::adjustStencilParams(GrStencilSettings* settings, 944a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com StencilClipMode mode, 945a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int stencilBitCnt) { 946f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(stencilBitCnt > 0); 947411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 948411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com if (kModifyClip_StencilClipMode == mode) { 949a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // We assume that this clip manager itself is drawing to the GrGpu and 950a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // has already setup the correct values. 951a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return; 952411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 953a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 954411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com unsigned int clipBit = (1 << (stencilBitCnt - 1)); 955411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com unsigned int userBits = clipBit - 1; 956411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 957a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilSettings::Face face = GrStencilSettings::kFront_Face; 958329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt bool twoSided = fClipTarget->caps()->twoSidedStencilSupport(); 959a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 960a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com bool finished = false; 961a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com while (!finished) { 962a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilFunc func = settings->func(face); 963a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t writeMask = settings->writeMask(face); 964a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t funcMask = settings->funcMask(face); 965a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t funcRef = settings->funcRef(face); 966a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 967f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT((unsigned) func < kStencilFuncCount); 968a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 969a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com writeMask &= userBits; 970a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 971a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (func >= kBasicStencilFuncCount) { 972a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int respectClip = kRespectClip_StencilClipMode == mode; 973a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (respectClip) { 974a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // The GrGpu class should have checked this 975f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(this->isClipInStencil()); 976a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com switch (func) { 977a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kAlwaysIfInClip_StencilFunc: 978a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = clipBit; 979a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = clipBit; 980a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 981a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kEqualIfInClip_StencilFunc: 982a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kLessIfInClip_StencilFunc: 983a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kLEqualIfInClip_StencilFunc: 984a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = (funcMask & userBits) | clipBit; 985a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = (funcRef & userBits) | clipBit; 986a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 987a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kNonZeroIfInClip_StencilFunc: 988a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = (funcMask & userBits) | clipBit; 989a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = clipBit; 990a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 991a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com default: 99288cb22b6b4816c7a9ca6c5b795965b4606f9eb7bcommit-bot@chromium.org SkFAIL("Unknown stencil func"); 993a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 994a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 995a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask &= userBits; 996a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef &= userBits; 997411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 998fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com const GrStencilFunc* table = 999a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com gSpecialToBasicStencilFunc[respectClip]; 1000a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com func = table[func - kBasicStencilFuncCount]; 1001f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(func >= 0 && func < kBasicStencilFuncCount); 1002411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } else { 1003a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask &= userBits; 1004a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef &= userBits; 1005411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 1006a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 1007a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFunc(face, func); 1008a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setWriteMask(face, writeMask); 1009a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFuncMask(face, funcMask); 1010a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFuncRef(face, funcRef); 1011a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 1012a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (GrStencilSettings::kFront_Face == face) { 1013a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com face = GrStencilSettings::kBack_Face; 1014a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com finished = !twoSided; 1015a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 1016a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com finished = true; 1017a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 1018a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 1019a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (!twoSided) { 1020a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->copyFrontSettingsToBack(); 1021411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 1022411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com} 1023411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 1024411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com//////////////////////////////////////////////////////////////////////////////// 1025d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.orgGrTexture* GrClipMaskManager::createSoftwareClipMask(int32_t elementsGenID, 10264c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com GrReducedClip::InitialState initialState, 10274c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const GrReducedClip::ElementList& elements, 10288059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 10294c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds) { 1030f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 10316b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1032ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski GrTexture* result = this->getCachedMaskTexture(elementsGenID, clipSpaceIBounds); 103349f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 10344c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 10356b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10366b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 10374c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The mask texture may be larger than necessary. We round out the clip space bounds and pin 10384c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // the top left corner of the resulting rect to the top left of the texture. 10394c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect maskSpaceIBounds = SkIRect::MakeWH(clipSpaceIBounds.width(), clipSpaceIBounds.height()); 10404c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 10412c75681e36b33fcafc5665d7012bbd4fc6647d83robertphillips@google.com GrSWMaskHelper helper(this->getContext()); 10426b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 10438059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 10448059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 10458059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 10468059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 10474c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 10488059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt helper.init(maskSpaceIBounds, &translate, false); 1049bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina helper.clear(GrReducedClip::kAllIn_InitialState == initialState ? 0xFF : 0x00); 10505f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 105112b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com 1052bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()) ; iter.get(); iter.next()) { 10534c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 10548182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 1055fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com 10564c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) { 10574c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // Intersect and reverse difference require modifying pixels outside of the geometry 10584c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // that is being "drawn". In both cases we erase all the pixels outside of the geometry 10594c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // but leave the pixels inside the geometry alone. For reverse difference we invert all 10604c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // the pixels before clearing the ones outside the geometry. 1061fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com if (SkRegion::kReverseDifference_Op == op) { 10624469938e92d779dff05e745559e67907bbf21e78reed@google.com SkRect temp = SkRect::Make(clipSpaceIBounds); 1063fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // invert the entire scene 1064366f1c6a09f63c76e78145cb08028f66062f31fdrobertphillips@google.com helper.draw(temp, SkRegion::kXOR_Op, false, 0xFF); 1065fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 10665c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org SkPath clipPath; 10675c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org element->asPath(&clipPath); 10685c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org clipPath.toggleInverseFillType(); 10695c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org helper.draw(clipPath, stroke, SkRegion::kReplace_Op, element->isAA(), 0x00); 1070fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com continue; 1071fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 1072fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com 1073fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // The other ops (union, xor, diff) only affect pixels inside 1074fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // the geometry so they can just be drawn normally 10758182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 10768182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com helper.draw(element->getRect(), op, element->isAA(), 0xFF); 10778182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } else { 10785c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org SkPath path; 10795c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org element->asPath(&path); 10805c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org helper.draw(path, stroke, op, element->isAA(), 0xFF); 10816b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10826b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10836b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1084ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // Allocate clip mask texture 1085ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski result = this->allocMaskTexture(elementsGenID, clipSpaceIBounds, true); 1086ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski if (NULL == result) { 1087ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.reset(); 1088ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return NULL; 1089ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski } 1090d92cf2ebbfbb9d737ea4a551e64ffccb08376875robertphillips@google.com helper.toTexture(result); 10916b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1092c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 10934c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 10946b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 10956b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1096f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 1097c8dc1f74b6cdda9a43a638292a608c59c1d72d80bsalomonvoid GrClipMaskManager::purgeResources() { 1098c8dc1f74b6cdda9a43a638292a608c59c1d72d80bsalomon fAACache.purgeResources(); 10991e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 11006e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com 1101329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualittvoid GrClipMaskManager::setClipTarget(GrClipTarget* clipTarget) { 1102329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget = clipTarget; 1103329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fAACache.setContext(clipTarget->getContext()); 11046e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com} 1105c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 11069853ccef19c200be93a6211f32589fa82a53067cjoshualittvoid GrClipMaskManager::adjustPathStencilParams(const GrStencilBuffer* stencilBuffer, 11079853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrStencilSettings* settings) { 110849f085dddff10473b6ebf832a974288300224e60bsalomon if (stencilBuffer) { 11099853ccef19c200be93a6211f32589fa82a53067cjoshualitt int stencilBits = stencilBuffer->bits(); 11107a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt this->adjustStencilParams(settings, fClipMode, stencilBits); 1111c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 1112c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org} 1113