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" 178dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel#include "GrStencilAttachment.h" 18c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com#include "GrSWMaskHelper.h" 193a0cfeb96185934c0a36f1313f21b96c57ca6341joshualitt#include "SkRasterClip.h" 203a0cfeb96185934c0a36f1313f21b96c57ca6341joshualitt#include "SkTLazy.h" 21a58fe35fdae3481cf43062f7032820c320c3d163joshualitt#include "effects/GrConvexPolyEffect.h" 229513143efa734bef0c1a0c7f945022572dbc8518egdaniel#include "effects/GrPorterDuffXferProcessor.h" 23a58fe35fdae3481cf43062f7032820c320c3d163joshualitt#include "effects/GrRRectEffect.h" 249513143efa734bef0c1a0c7f945022572dbc8518egdaniel#include "effects/GrTextureDomain.h" 25c6b3e48cb3a22d83ba3f4b9a614a5a35b05958a0bsalomon@google.com 268182fa0cac76e7e6d583aebba060229230516887bsalomon@google.comtypedef SkClipStack::Element Element; 2751a6286c241c1dc750d263ed9676079c898148b0bsalomon@google.com 2851a6286c241c1dc750d263ed9676079c898148b0bsalomon@google.com//////////////////////////////////////////////////////////////////////////////// 29e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.comnamespace { 30fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com// set up the draw state to enable the aa clipping mask. Besides setting up the 3108283afc265f1153834256fc1012519813ba6b73bsalomon@google.com// stage matrix this also alters the vertex layout 32642429e27c6439abff4121f0cba30a7832b4744ajoshualittvoid setup_drawstate_aaclip(GrPipelineBuilder* pipelineBuilder, 33642429e27c6439abff4121f0cba30a7832b4744ajoshualitt GrTexture* result, 346be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon GrPipelineBuilder::AutoRestoreFragmentProcessors* arfp, 35642429e27c6439abff4121f0cba30a7832b4744ajoshualitt const SkIRect &devBound) { 366be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon SkASSERT(pipelineBuilder && arfp); 376be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon arfp->set(pipelineBuilder); 38a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 39b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix mat; 40309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon // We use device coords to compute the texture coordinates. We set our matrix to be a 41309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon // translation to the devBound, and then a scaling matrix to normalized coords. 42a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com mat.setIDiv(result->width(), result->height()); 43fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com mat.preTranslate(SkIntToScalar(-devBound.fLeft), 447b11289b4e4d117bbcee6d2460b057d0fcf6e437robertphillips@google.com SkIntToScalar(-devBound.fTop)); 45a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 467b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com SkIRect domainTexels = SkIRect::MakeWH(devBound.width(), devBound.height()); 474c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This could be a long-lived effect that is cached with the alpha-mask. 488dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor( 49eb6879f50a5564eeb981ec5616b55bf685eb76fcbsalomon@google.com GrTextureDomainEffect::Create(result, 507b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com mat, 51907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::MakeTexelDomain(result, domainTexels), 52907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::kDecal_Mode, 53b86add1ad37776818e1f730359ec587c9fdbff5fhumper@google.com GrTextureParams::kNone_FilterMode, 54309d4d590964fbf7443c5bc892c132faa61a9abbbsalomon kDevice_GrCoordSet))->unref(); 55a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com} 56a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 57e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.combool path_needs_SW_renderer(GrContext* context, 589853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrDrawTarget* gpu, 598dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel const GrPipelineBuilder* pipelineBuilder, 608059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkMatrix& viewMatrix, 61e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com const SkPath& origPath, 621899651ffc459f5462aa989cd6d08507947b67e4kkinnunen const GrStrokeInfo& stroke, 63e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com bool doAA) { 64e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // the gpu alpha mask will draw the inverse paths as non-inverse to a temp buffer 65e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com SkTCopyOnFirstWrite<SkPath> path(origPath); 66e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (path->isInverseFillType()) { 67e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com path.writable()->toggleInverseFillType(); 68e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 69e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // last (false) parameter disallows use of the SW path renderer 7045a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::DrawType type = doAA ? 7145a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kColorAntiAlias_DrawType : 7245a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kColor_DrawType; 7345a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com 748dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel return NULL == context->getPathRenderer(gpu, pipelineBuilder, viewMatrix, *path, stroke, 758dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel false, type); 76e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com} 776b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 786b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 79fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com/* 80fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * This method traverses the clip stack to see if the GrSoftwarePathRenderer 81fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * will be used on any element. If so, it returns true to indicate that the 82fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com * entire clip should be rendered in SW and then uploaded en masse to the gpu. 83fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com */ 848dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::useSWOnlyPath(const GrPipelineBuilder* pipelineBuilder, 858059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 869853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrReducedClip::ElementList& elements) { 878a4fc40b02fa0a8300ade26863f4ddae69197d62robertphillips@google.com // TODO: generalize this function so that when 88fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // a clip gets complex enough it can just be done in SW regardless 89fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // of whether it would invoke the GrSoftwarePathRenderer. 901899651ffc459f5462aa989cd6d08507947b67e4kkinnunen GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle); 91d21444aab7128c97f4e0eb5e9bf05111d5037292skia.committer@gmail.com 928059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 938059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 948059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 958059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 968059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 97bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) { 984c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 99f69a11b5c5dc5ae02489dfe7ca6432d641b9f121robertphillips@google.com // rects can always be drawn directly w/o using the software path 100e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // Skip rrects once we're drawing them directly. 101e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (Element::kRect_Type != element->getType()) { 102e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 103e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 1048dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (path_needs_SW_renderer(this->getContext(), fClipTarget, pipelineBuilder, translate, 1058059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt path, stroke, element->isAA())) { 106e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org return true; 107e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org } 108fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 109fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 1104c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return false; 111a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com} 112a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 1138dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::installClipEffects(GrPipelineBuilder* pipelineBuilder, 1146be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon GrPipelineBuilder::AutoRestoreFragmentProcessors* arfp, 1159853ccef19c200be93a6211f32589fa82a53067cjoshualitt const GrReducedClip::ElementList& elements, 116e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org const SkVector& clipToRTOffset, 117217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein const SkRect* drawBounds) { 118e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRect boundsInClipSpace; 11949f085dddff10473b6ebf832a974288300224e60bsalomon if (drawBounds) { 120e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org boundsInClipSpace = *drawBounds; 121e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org boundsInClipSpace.offset(-clipToRTOffset.fX, -clipToRTOffset.fY); 122e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 123e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 1246be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon arfp->set(pipelineBuilder); 1258dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 126bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::ElementList::Iter iter(elements); 127e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool failed = false; 12849f085dddff10473b6ebf832a974288300224e60bsalomon while (iter.get()) { 129e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRegion::Op op = iter.get()->getOp(); 130e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool invert; 131e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org bool skip = false; 132e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org switch (op) { 133e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kReplace_Op: 134e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkASSERT(iter.get() == elements.head()); 135e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // Fallthrough, handled same as intersect. 136e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kIntersect_Op: 137e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org invert = false; 13849f085dddff10473b6ebf832a974288300224e60bsalomon if (drawBounds && iter.get()->contains(boundsInClipSpace)) { 139e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org skip = true; 140e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 141e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 142e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkRegion::kDifference_Op: 143e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org invert = true; 144e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // We don't currently have a cheap test for whether a rect is fully outside an 145e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // element's primitive, so don't attempt to set skip. 146e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 147e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org default: 148e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 149e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 150e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 151e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (failed) { 152e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 153e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 154e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 155e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (!skip) { 156b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt GrPrimitiveEdgeType edgeType; 157e85a32d4f8ce7fb9b6aaae89137dbf3766d833f2robertphillips if (iter.get()->isAA()) { 158e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (rt->isMultisampled()) { 159217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein // Coverage based AA clips don't place nicely with MSAA. 160e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 161e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 162e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 163b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt edgeType = 164b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt invert ? kInverseFillAA_GrProcessorEdgeType : kFillAA_GrProcessorEdgeType; 165e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } else { 166b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt edgeType = 16796e02a8f3f356085073de4a3d897dcc4e0931455bsalomoninvert ? kInverseFillBW_GrProcessorEdgeType : kFillBW_GrProcessorEdgeType; 168e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 169b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt SkAutoTUnref<GrFragmentProcessor> fp; 170e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org switch (iter.get()->getType()) { 171e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kPath_Type: 172b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrConvexPolyEffect::Create(edgeType, iter.get()->getPath(), 173642429e27c6439abff4121f0cba30a7832b4744ajoshualitt &clipToRTOffset)); 174e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 175e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kRRect_Type: { 176e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRRect rrect = iter.get()->getRRect(); 177e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org rrect.offset(clipToRTOffset.fX, clipToRTOffset.fY); 178b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrRRectEffect::Create(edgeType, rrect)); 179e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 180e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 181e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org case SkClipStack::Element::kRect_Type: { 182e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org SkRect rect = iter.get()->getRect(); 183e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org rect.offset(clipToRTOffset.fX, clipToRTOffset.fY); 184b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt fp.reset(GrConvexPolyEffect::Create(edgeType, rect)); 185e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 186e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 187e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org default: 188e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 189e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 190b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt if (fp) { 1918dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor(fp); 192217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein } else { 193e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org failed = true; 194e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org break; 195e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 196e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 197217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein iter.next(); 198e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 199e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 200e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (failed) { 2016be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon arfp->set(NULL); 202e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 203e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org return !failed; 204e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org} 205e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org 206f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 2076b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// sort out what kind of clip mask needs to be created: alpha, stencil, 2086b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// scissor, or entirely software 2098dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::setupClipping(GrPipelineBuilder* pipelineBuilder, 2106be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon GrPipelineBuilder::AutoRestoreFragmentProcessors* arfp, 2118dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreStencil* ars, 2123e79124a69d4806f0a1a776090bff718e1b90970bsalomon GrScissorState* scissorState, 2139853ccef19c200be93a6211f32589fa82a53067cjoshualitt const SkRect* devBounds) { 214c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kNone_ClipMaskType; 2157a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt if (kRespectClip_StencilClipMode == fClipMode) { 2167a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kIgnoreClip_StencilClipMode; 2177a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt } 218a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 219bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::ElementList elements(16); 22071d7f7f002332b9904bf12eb3f1908883f99120ebrucedawson int32_t genID = 0; 22171d7f7f002332b9904bf12eb3f1908883f99120ebrucedawson GrReducedClip::InitialState initialState = GrReducedClip::kAllIn_InitialState; 2224c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect clipSpaceIBounds; 22371d7f7f002332b9904bf12eb3f1908883f99120ebrucedawson bool requiresAA = false; 2248dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 2254c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 2261e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // GrDrawTarget should have filtered this for us 22749f085dddff10473b6ebf832a974288300224e60bsalomon SkASSERT(rt); 2281e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 22944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIRect clipSpaceRTIBounds = SkIRect::MakeWH(rt->width(), rt->height()); 23044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt const GrClip& clip = pipelineBuilder->clip(); 23196e02a8f3f356085073de4a3d897dcc4e0931455bsalomon if (clip.isWideOpen(clipSpaceRTIBounds)) { 2328dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 2334c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return true; 234a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 235a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 23696e02a8f3f356085073de4a3d897dcc4e0931455bsalomon // The clip mask manager always draws with a single IRect so we special case that logic here 23796e02a8f3f356085073de4a3d897dcc4e0931455bsalomon // Image filters just use a rect, so we also special case that logic 23896e02a8f3f356085073de4a3d897dcc4e0931455bsalomon switch (clip.clipType()) { 23996e02a8f3f356085073de4a3d897dcc4e0931455bsalomon case GrClip::kWideOpen_ClipType: 24096e02a8f3f356085073de4a3d897dcc4e0931455bsalomon SkFAIL("Should have caught this with clip.isWideOpen()"); 24196e02a8f3f356085073de4a3d897dcc4e0931455bsalomon return true; 2429ce30e1cd19ad813091aa9876fceb416fb781352bsalomon case GrClip::kIRect_ClipType: { 2439ce30e1cd19ad813091aa9876fceb416fb781352bsalomon SkIRect scissor = clip.irect(); 2449ce30e1cd19ad813091aa9876fceb416fb781352bsalomon if (scissor.intersect(clipSpaceRTIBounds)) { 2459ce30e1cd19ad813091aa9876fceb416fb781352bsalomon scissorState->set(scissor); 2469ce30e1cd19ad813091aa9876fceb416fb781352bsalomon this->setPipelineBuilderStencil(pipelineBuilder, ars); 2479ce30e1cd19ad813091aa9876fceb416fb781352bsalomon return true; 2489ce30e1cd19ad813091aa9876fceb416fb781352bsalomon } 2499ce30e1cd19ad813091aa9876fceb416fb781352bsalomon return false; 2509ce30e1cd19ad813091aa9876fceb416fb781352bsalomon } 25196e02a8f3f356085073de4a3d897dcc4e0931455bsalomon case GrClip::kClipStack_ClipType: { 25296e02a8f3f356085073de4a3d897dcc4e0931455bsalomon clipSpaceRTIBounds.offset(clip.origin()); 25396e02a8f3f356085073de4a3d897dcc4e0931455bsalomon GrReducedClip::ReduceClipStack(*clip.clipStack(), 25496e02a8f3f356085073de4a3d897dcc4e0931455bsalomon clipSpaceRTIBounds, 25596e02a8f3f356085073de4a3d897dcc4e0931455bsalomon &elements, 25696e02a8f3f356085073de4a3d897dcc4e0931455bsalomon &genID, 25796e02a8f3f356085073de4a3d897dcc4e0931455bsalomon &initialState, 25896e02a8f3f356085073de4a3d897dcc4e0931455bsalomon &clipSpaceIBounds, 25996e02a8f3f356085073de4a3d897dcc4e0931455bsalomon &requiresAA); 26096e02a8f3f356085073de4a3d897dcc4e0931455bsalomon if (elements.isEmpty()) { 26196e02a8f3f356085073de4a3d897dcc4e0931455bsalomon if (GrReducedClip::kAllIn_InitialState == initialState) { 26296e02a8f3f356085073de4a3d897dcc4e0931455bsalomon if (clipSpaceIBounds == clipSpaceRTIBounds) { 26396e02a8f3f356085073de4a3d897dcc4e0931455bsalomon this->setPipelineBuilderStencil(pipelineBuilder, ars); 26496e02a8f3f356085073de4a3d897dcc4e0931455bsalomon return true; 26596e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } 26696e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } else { 26796e02a8f3f356085073de4a3d897dcc4e0931455bsalomon return false; 26896e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } 26996e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } 27096e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } break; 27196e02a8f3f356085073de4a3d897dcc4e0931455bsalomon } 27296e02a8f3f356085073de4a3d897dcc4e0931455bsalomon 273e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // An element count of 4 was chosen because of the common pattern in Blink of: 274e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect RR 275e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // diff RR 276e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect convex_poly 277e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // isect convex_poly 278e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // when drawing rounded div borders. This could probably be tuned based on a 279e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // configuration's relative costs of switching RTs to generate a mask vs 280e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org // longer shaders. 281e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (elements.count() <= 4) { 28244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkVector clipToRTOffset = { SkIntToScalar(-clip.origin().fX), 28344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIntToScalar(-clip.origin().fY) }; 284e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org if (elements.isEmpty() || 28555f0b18ee079b1517f43c08c70f91e1a21928d23bsalomon (requiresAA && this->installClipEffects(pipelineBuilder, arfp, elements, clipToRTOffset, 28655f0b18ee079b1517f43c08c70f91e1a21928d23bsalomon devBounds))) { 287217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein SkIRect scissorSpaceIBounds(clipSpaceIBounds); 28844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt scissorSpaceIBounds.offset(-clip.origin()); 289217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein if (NULL == devBounds || 290217daa7ec592fc306edffb9fb2a3d8c7ebff8c2dmtklein !SkRect::Make(scissorSpaceIBounds).contains(*devBounds)) { 29177b1307c1f5dac019575a6d431d5ce657370c4fbjoshualitt scissorState->set(scissorSpaceIBounds); 292e5a041c0688ccb861cc85f8917338602864d8e5acommit-bot@chromium.org } 2938dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 29465ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org return true; 29565ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org } 29665ee5f424cb4dabd453268902c00086605d77c1dcommit-bot@chromium.org } 297d3066bd9b4a37cf4a39e7df7e1432f3df10dbc67bsalomon@google.com 298a3e5c63ab0264332169df4583a8a7da186fb4e66robertphillips@google.com // If MSAA is enabled we can do everything in the stencil buffer. 2994c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (0 == rt->numSamples() && requiresAA) { 3006b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com GrTexture* result = NULL; 301a3e5c63ab0264332169df4583a8a7da186fb4e66robertphillips@google.com 3028059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // The top-left of the mask corresponds to the top-left corner of the bounds. 3038059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkVector clipToMaskOffset = { 3048059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkIntToScalar(-clipSpaceIBounds.fLeft), 3058059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkIntToScalar(-clipSpaceIBounds.fTop) 3068059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt }; 3078059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 3088dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (this->useSWOnlyPath(pipelineBuilder, clipToMaskOffset, elements)) { 3094c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The clip geometry is complex enough that it will be more efficient to create it 3104c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // entirely in software 3114c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com result = this->createSoftwareClipMask(genID, 3124c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com initialState, 3134c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3148059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipToMaskOffset, 3154c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds); 3164c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } else { 3174c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com result = this->createAlphaClipMask(genID, 3184c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com initialState, 3194c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3208059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipToMaskOffset, 3214c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds); 3224c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 3236b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 32449f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 3256be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon arfp->set(pipelineBuilder); 3264c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The mask's top left coord should be pinned to the rounded-out top left corner of 3274c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // clipSpace bounds. We determine the mask's position WRT to the render target here. 3284c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect rtSpaceMaskBounds = clipSpaceIBounds; 32944701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt rtSpaceMaskBounds.offset(-clip.origin()); 3306be6f7cb66b277e7b1ce13d09b635fb8e09a2f68bsalomon setup_drawstate_aaclip(pipelineBuilder, result, arfp, rtSpaceMaskBounds); 3318dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 332f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com return true; 333f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 3344c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // if alpha clip mask creation fails fall through to the non-AA code paths 335f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 336f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3374c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // Either a hard (stencil buffer) clip was explicitly requested or an anti-aliased clip couldn't 3384c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // be created. In either case, free up the texture in the anti-aliased mask cache. 3394c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // TODO: this may require more investigation. Ganesh performs a lot of utility draws (e.g., 3404c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // clears, InOrderDrawBuffer playbacks) that hit the stencil buffer path. These may be 3414c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // "incorrectly" clearing the AA cache. 3425acc0e36d987dff3172fd45a14b66c52a51d49e4robertphillips@google.com fAACache.reset(); 3435acc0e36d987dff3172fd45a14b66c52a51d49e4robertphillips@google.com 3441e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // use the stencil clip if we can't represent the clip as a rectangle. 34544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkIPoint clipSpaceToStencilSpaceOffset = -clip.origin(); 3469853ccef19c200be93a6211f32589fa82a53067cjoshualitt this->createStencilClipMask(rt, 3479853ccef19c200be93a6211f32589fa82a53067cjoshualitt genID, 348d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org initialState, 3494c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com elements, 3504c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceIBounds, 3514c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipSpaceToStencilSpaceOffset); 3524c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 3534c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This must occur after createStencilClipMask. That function may change the scissor. Also, it 3544c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // only guarantees that the stencil mask is correct within the bounds it was passed, so we must 3554c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // use both stencil and scissor test to the bounds for the final draw. 3564c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect scissorSpaceIBounds(clipSpaceIBounds); 3574c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com scissorSpaceIBounds.offset(clipSpaceToStencilSpaceOffset); 35877b1307c1f5dac019575a6d431d5ce657370c4fbjoshualitt scissorState->set(scissorSpaceIBounds); 3598dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->setPipelineBuilderStencil(pipelineBuilder, ars); 3601e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return true; 3611e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 3621e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 3631e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.comnamespace { 364f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 3658dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel// Set a coverage drawing XPF on the pipelineBuilder for the given op and invertCoverage mode 3668dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid set_coverage_drawing_xpf(SkRegion::Op op, bool invertCoverage, 3678dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder* pipelineBuilder) { 3688750924a1470e8215b2a344155259b93062d3fa2egdaniel SkASSERT(op <= SkRegion::kLastOp); 3698dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setCoverageSetOpXPFactory(op, invertCoverage); 370f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 37172176b2d38db005863a54e3dd6657bbabd068bb6robertphillips@google.com} 372f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 373f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 3748dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::drawElement(GrPipelineBuilder* pipelineBuilder, 3758059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkMatrix& viewMatrix, 3769853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* target, 377e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com const SkClipStack::Element* element, 378e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr) { 379f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3808dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(target->asRenderTarget()); 381f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 3828750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color we use to draw does not matter since we will always be using a GrCoverageSetOpXP 3838750924a1470e8215b2a344155259b93062d3fa2egdaniel // which ignores color. 3848750924a1470e8215b2a344155259b93062d3fa2egdaniel GrColor color = GrColor_WHITE; 3858750924a1470e8215b2a344155259b93062d3fa2egdaniel 386e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // TODO: Draw rrects directly here. 3878182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com switch (element->getType()) { 388e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org case Element::kEmpty_Type: 389e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkDEBUGFAIL("Should never get here with an empty element."); 390e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org break; 3918182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com case Element::kRect_Type: 392b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt // TODO: Do rects directly to the accumulator using a aa-rect GrProcessor that covers 393b0a8a377f832c59cee939ad721e1f87d378b7142joshualitt // the entire mask bounds and writes 0 outside the rect. 3948182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (element->isAA()) { 3958059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkRect devRect = element->getRect(); 3968059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix.mapRect(&devRect); 397329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt this->getContext()->getAARectRenderer()->fillAARect(fClipTarget, 3988dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder, 3992e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt color, 4008059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix, 401a58fe35fdae3481cf43062f7032820c320c3d163joshualitt element->getRect(), 4028059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt devRect); 4038182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } else { 4048dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel fClipTarget->drawSimpleRect(pipelineBuilder, color, viewMatrix, element->getRect()); 4058182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } 4068182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com return true; 407e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org default: { 408e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 409e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 410b3eb687f8a89eb1eacd1afb4016401eb392f66abjvanverth path.setIsVolatile(true); 411e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (path.isInverseFillType()) { 412e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org path.toggleInverseFillType(); 413e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 4141899651ffc459f5462aa989cd6d08507947b67e4kkinnunen GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle); 415e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 416e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRendererChain::DrawType type; 417e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com type = element->isAA() ? GrPathRendererChain::kColorAntiAlias_DrawType : 418e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRendererChain::kColor_DrawType; 4198dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pr = this->getContext()->getPathRenderer(fClipTarget, pipelineBuilder, viewMatrix, 4208dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel path, stroke, false, type); 421e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 422e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 4234c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return false; 4244c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 4259853ccef19c200be93a6211f32589fa82a53067cjoshualitt 4268dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pr->drawPath(fClipTarget, pipelineBuilder, color, viewMatrix, path, stroke, 4278dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel element->isAA()); 4284c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com break; 4294c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 430f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 431f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com return true; 432f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 433f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 4348dd688b7569df569a672a8a67b2db86a9d376cfcegdanielbool GrClipMaskManager::canStencilAndDrawElement(GrPipelineBuilder* pipelineBuilder, 4359853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* target, 4369853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrPathRenderer** pr, 4379853ccef19c200be93a6211f32589fa82a53067cjoshualitt const SkClipStack::Element* element) { 4388dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(target->asRenderTarget()); 439b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 440e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (Element::kRect_Type == element->getType()) { 441e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org return true; 442e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org } else { 443e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org // We shouldn't get here with an empty clip element. 444e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkASSERT(Element::kEmpty_Type != element->getType()); 445e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath path; 446e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&path); 447e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (path.isInverseFillType()) { 448e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org path.toggleInverseFillType(); 449b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 4501899651ffc459f5462aa989cd6d08507947b67e4kkinnunen GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle); 451e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::DrawType type = element->isAA() ? 452e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::kStencilAndColorAntiAlias_DrawType : 453e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org GrPathRendererChain::kStencilAndColor_DrawType; 4548dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pr = this->getContext()->getPathRenderer(fClipTarget, pipelineBuilder, SkMatrix::I(), path, 4558059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt stroke, false, type); 45649f085dddff10473b6ebf832a974288300224e60bsalomon return SkToBool(*pr); 457b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 458b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com} 459b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 4608dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid GrClipMaskManager::mergeMask(GrPipelineBuilder* pipelineBuilder, 4619853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrTexture* dstMask, 4627b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com GrTexture* srcMask, 4637b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com SkRegion::Op op, 464fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkIRect& dstBound, 465fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkIRect& srcBound) { 4668dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setRenderTarget(dstMask->asRenderTarget()); 467f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 4688750924a1470e8215b2a344155259b93062d3fa2egdaniel // We want to invert the coverage here 4698dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, false, pipelineBuilder); 47072b2e6fff3f54c6aa80a98eab4c73f02a8cd450dskia.committer@gmail.com 471b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix sampleM; 4727b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com sampleM.setIDiv(srcMask->width(), srcMask->height()); 473956b310f13c7412c035406c658ff16ca85eac656skia.committer@gmail.com 4748dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->addCoverageProcessor( 4757b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com GrTextureDomainEffect::Create(srcMask, 4767b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com sampleM, 477907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::MakeTexelDomain(srcMask, srcBound), 478907fbd53c5e5dd4cbde7b72f9242b51febd7ef95commit-bot@chromium.org GrTextureDomain::kDecal_Mode, 479b86add1ad37776818e1f730359ec587c9fdbff5fhumper@google.com GrTextureParams::kNone_FilterMode))->unref(); 48073bb4562a631d54ee2343ce2becea0070eb31a80joshualitt 4818750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 48244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(pipelineBuilder, 48344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 48444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt SkMatrix::I(), 4858dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel SkRect::Make(dstBound)); 486f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com} 487f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 488427cf28861867c0ea9aafca3a23878ec4068ad99bsalomonGrTexture* GrClipMaskManager::createTempMask(int width, int height) { 489f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon GrSurfaceDesc desc; 4903f490a0c0170feb8b53c220d6c5331c23aeb3f23bsalomon desc.fFlags = kRenderTarget_GrSurfaceFlag; 4914c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com desc.fWidth = width; 4924c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com desc.fHeight = height; 49351d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon if (this->getContext()->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) { 49451d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon desc.fConfig = kAlpha_8_GrPixelConfig; 49551d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon } else { 49651d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon desc.fConfig = kRGBA_8888_GrPixelConfig; 49751d1f7e3a4305e517586dc158a0329bbaa8896aabsalomon } 4986b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 499d309e7aa0efa2d5dd7e7b1af97026fcd3a047e98bsalomon return this->getContext()->textureProvider()->refScratchTexture( 500d309e7aa0efa2d5dd7e7b1af97026fcd3a047e98bsalomon desc, GrTextureProvider::kApprox_ScratchTexMatch); 5016d62df404bf420bedff4d7b5edd061740a673d44robertphillips@google.com} 5026d62df404bf420bedff4d7b5edd061740a673d44robertphillips@google.com 5036b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 504ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// Return the texture currently in the cache if it exists. Otherwise, return NULL 505ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevskiGrTexture* GrClipMaskManager::getCachedMaskTexture(int32_t elementsGenID, 506ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski const SkIRect& clipSpaceIBounds) { 507d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.org bool cached = fAACache.canReuse(elementsGenID, clipSpaceIBounds); 5084c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (!cached) { 509ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return NULL; 510ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski } 5114c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 512ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return fAACache.getLastMask(); 513ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski} 514f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 515ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski//////////////////////////////////////////////////////////////////////////////// 516ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// Allocate a texture in the texture cache. This function returns the texture 517ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski// allocated (or NULL on error). 518ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevskiGrTexture* GrClipMaskManager::allocMaskTexture(int32_t elementsGenID, 519ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski const SkIRect& clipSpaceIBounds, 520ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski bool willUpload) { 521ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // Since we are setting up the cache we should free up the 522ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // currently cached mask so it can be reused. 523ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.reset(); 524a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com 525f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon GrSurfaceDesc desc; 526f2703d83da3ab2ae18b45231fd4f11e16cce3184bsalomon desc.fFlags = willUpload ? kNone_GrSurfaceFlags : kRenderTarget_GrSurfaceFlag; 527ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fWidth = clipSpaceIBounds.width(); 528ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fHeight = clipSpaceIBounds.height(); 529ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fConfig = kRGBA_8888_GrPixelConfig; 530ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski if (willUpload || this->getContext()->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) { 531ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // We would always like A8 but it isn't supported on all platforms 532ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski desc.fConfig = kAlpha_8_GrPixelConfig; 5338fff356c8505f2ac78e1fc9dc17c1192e3a608e4robertphillips@google.com } 5348fff356c8505f2ac78e1fc9dc17c1192e3a608e4robertphillips@google.com 535ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.acquireMask(elementsGenID, desc, clipSpaceIBounds); 536ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return fAACache.getLastMask(); 5376b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 538f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5396b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 5406b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com// Create a 8-bit clip mask in alpha 541d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.orgGrTexture* GrClipMaskManager::createAlphaClipMask(int32_t elementsGenID, 542bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::InitialState initialState, 543bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina const GrReducedClip::ElementList& elements, 5448059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 5454c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds) { 546f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 547c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com 548ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // First, check for cached texture 549ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski GrTexture* result = this->getCachedMaskTexture(elementsGenID, clipSpaceIBounds); 55049f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 551c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 5524c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 5536b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 554f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 555ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // There's no texture in the cache. Let's try to allocate it then. 556ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski result = this->allocMaskTexture(elementsGenID, clipSpaceIBounds, false); 5574c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (NULL == result) { 558f105b109264f71dfb0bfd9977e6a5dd0a5a12f57robertphillips@google.com fAACache.reset(); 5594c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return NULL; 560f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 561f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5628059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 5638059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 5648059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 5658059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 5668059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt 5674c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The texture may be larger than necessary, this rect represents the part of the texture 5684c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // we populate with a rasterization of the clip. 5694c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect maskSpaceIBounds = SkIRect::MakeWH(clipSpaceIBounds.width(), clipSpaceIBounds.height()); 570f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 5717b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // The scratch texture that we are drawing into can be substantially larger than the mask. Only 5727b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // clear the part that we care about. 573329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clear(&maskSpaceIBounds, 574329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt GrReducedClip::kAllIn_InitialState == initialState ? 0xffffffff : 0x00000000, 575329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt true, 576329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt result->asRenderTarget()); 577d9f7503e0cb0c4db856f53b4bdeec1332db6f296skia.committer@gmail.com 578b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // When we use the stencil in the below loop it is important to have this clip installed. 579b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // The second pass that zeros the stencil buffer renders the rect maskSpaceIBounds so the first 580b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // pass must not set values outside of this bounds or stencil values outside the rect won't be 581b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // cleared. 58244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrClip clip(maskSpaceIBounds); 583427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon SkAutoTUnref<GrTexture> temp; 5849853ccef19c200be93a6211f32589fa82a53067cjoshualitt 585f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com // walk through each clip element and perform its set op 586bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter = elements.headIter(); iter.get(); iter.next()) { 5874c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 5888182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 589b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com bool invert = element->isInverseFilled(); 590b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (invert || SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) { 5918dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 5929853ccef19c200be93a6211f32589fa82a53067cjoshualitt 59344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pipelineBuilder.setClip(clip); 594e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr = NULL; 5958dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel bool useTemp = !this->canStencilAndDrawElement(&pipelineBuilder, result, &pr, element); 596b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GrTexture* dst; 5974c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // This is the bounds of the clip element in the space of the alpha-mask. The temporary 5987b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // mask buffer can be substantially larger than the actually clip stack element. We 5997b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com // touch the minimum number of pixels necessary and use decal mode to combine it with 600b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // the accumulator. 601fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org SkIRect maskSpaceElementIBounds; 602b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 603b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (useTemp) { 604b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (invert) { 605b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceElementIBounds = maskSpaceIBounds; 606b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } else { 607fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org SkRect elementBounds = element->getBounds(); 608b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com elementBounds.offset(clipToMaskOffset); 609b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com elementBounds.roundOut(&maskSpaceElementIBounds); 610b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 611b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 612427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon if (!temp) { 613427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon temp.reset(this->createTempMask(maskSpaceIBounds.fRight, 614427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon maskSpaceIBounds.fBottom)); 615427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon if (!temp) { 616427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon fAACache.reset(); 617427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon return NULL; 618427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon } 619a7aedfec9e28db36c97e49f11f2bc2e0eb624c30skia.committer@gmail.com } 620427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon dst = temp; 621b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // clear the temp target and set blend to replace 622329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clear(&maskSpaceElementIBounds, 6239853ccef19c200be93a6211f32589fa82a53067cjoshualitt invert ? 0xffffffff : 0x00000000, 6249853ccef19c200be93a6211f32589fa82a53067cjoshualitt true, 6259853ccef19c200be93a6211f32589fa82a53067cjoshualitt dst->asRenderTarget()); 6268dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(SkRegion::kReplace_Op, invert, &pipelineBuilder); 6274c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } else { 628b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // draw directly into the result with the stencil set to make the pixels affected 629b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // by the clip shape be non-zero. 630b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com dst = result; 631b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL(kStencilInElement, 632b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kReplace_StencilOp, 633b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kReplace_StencilOp, 634b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kAlways_StencilFunc, 635b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 636b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 637b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff); 6388dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setStencil(kStencilInElement); 6398dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, invert, &pipelineBuilder); 6404c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 6417b7cdd147f5528865238e5ed98c79e6d319fde9bbsalomon@google.com 6428dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (!this->drawElement(&pipelineBuilder, translate, dst, element, pr)) { 643e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com fAACache.reset(); 644e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com return NULL; 6454c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com } 646f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 647b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com if (useTemp) { 6488dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder backgroundPipelineBuilder; 6498dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setRenderTarget(result->asRenderTarget()); 6508fc6c2d82c1f30ff82274334c01f0799def6a609joshualitt 651b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // Now draw into the accumulator using the real operation and the temp buffer as a 652b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // texture 6538dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->mergeMask(&backgroundPipelineBuilder, 6549853ccef19c200be93a6211f32589fa82a53067cjoshualitt result, 655427cf28861867c0ea9aafca3a23878ec4068ad99bsalomon temp, 656b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com op, 657b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceIBounds, 658b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com maskSpaceElementIBounds); 659b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } else { 6608dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder backgroundPipelineBuilder; 6618dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setRenderTarget(result->asRenderTarget()); 6628fc6c2d82c1f30ff82274334c01f0799def6a609joshualitt 6638dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, !invert, &backgroundPipelineBuilder); 664b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com // Draw to the exterior pixels (those with a zero stencil value). 665b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL(kDrawOutsideElement, 666b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kZero_StencilOp, 667b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kZero_StencilOp, 668b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com kEqual_StencilFunc, 669b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff, 670b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0x0000, 671b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com 0xffff); 6728dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel backgroundPipelineBuilder.setStencil(kDrawOutsideElement); 67373bb4562a631d54ee2343ce2becea0070eb31a80joshualitt 6748750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 6758dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel fClipTarget->drawSimpleRect(&backgroundPipelineBuilder, GrColor_WHITE, translate, 6768059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt clipSpaceIBounds); 677b68addd39f3e7183facc70374a133e7a6fb603c5bsalomon@google.com } 678f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } else { 6798dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 6809853ccef19c200be93a6211f32589fa82a53067cjoshualitt 681e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com // all the remaining ops can just be directly draw into the accumulation buffer 6828dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel set_coverage_drawing_xpf(op, false, &pipelineBuilder); 6838750924a1470e8215b2a344155259b93062d3fa2egdaniel // The color passed in here does not matter since the coverageSetOpXP won't read it. 6848dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel this->drawElement(&pipelineBuilder, translate, result, element); 685f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 686f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com } 687f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 688c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 6894c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 6901e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 6911e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 692f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 693fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com// Create a 1-bit clip mask in the stencil buffer. 'devClipBounds' are in device 694f8d904a7eed435b9de68fd2eef6d7f3c59fcc9ccrobertphillips@google.com// (as opposed to canvas) coordinates 6959853ccef19c200be93a6211f32589fa82a53067cjoshualittbool GrClipMaskManager::createStencilClipMask(GrRenderTarget* rt, 6969853ccef19c200be93a6211f32589fa82a53067cjoshualitt int32_t elementsGenID, 697bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina GrReducedClip::InitialState initialState, 698bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina const GrReducedClip::ElementList& elements, 6994c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds, 7004c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIPoint& clipSpaceToStencilOffset) { 701f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 70249f085dddff10473b6ebf832a974288300224e60bsalomon SkASSERT(rt); 7031e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7048dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel GrStencilAttachment* stencilAttachment = rt->renderTargetPriv().attachStencilAttachment(); 7058dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel if (NULL == stencilAttachment) { 7061e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return false; 7071e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 7081e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7098dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel if (stencilAttachment->mustRenderClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset)) { 7108dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel stencilAttachment->setLastClip(elementsGenID, clipSpaceIBounds, clipSpaceToStencilOffset); 711137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com // Set the matrix so that rendered clip elements are transformed from clip to stencil space. 712137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkVector translate = { 713137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkIntToScalar(clipSpaceToStencilOffset.fX), 714137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkIntToScalar(clipSpaceToStencilOffset.fY) 715137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com }; 7168059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix viewMatrix; 7178059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix.setTranslate(translate); 7181e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7199f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com // We set the current clip to the bounds so that our recursive draws are scissored to them. 7209f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com SkIRect stencilSpaceIBounds(clipSpaceIBounds); 7219f13174da5295e88d447f29740318003b9cec9c3bsalomon@google.com stencilSpaceIBounds.offset(clipSpaceToStencilOffset); 72244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrClip clip(stencilSpaceIBounds); 7231e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7248dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel int clipBit = stencilAttachment->bits(); 7254c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkASSERT((clipBit <= 16) && "Ganesh only handles 16b or smaller stencil buffers"); 7261e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com clipBit = (1 << (clipBit-1)); 7271e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 728329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget->clearStencilClip(stencilSpaceIBounds, 729329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt GrReducedClip::kAllIn_InitialState == initialState, 730329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt rt); 7311e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7321e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // walk through each clip element and perform its set op 7331e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // with the existing clip. 734bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) { 7354c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 7369853ccef19c200be93a6211f32589fa82a53067cjoshualitt 7378dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilder; 73844701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pipelineBuilder.setClip(clip); 7398dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setRenderTarget(rt); 740080e673b10ac607305f140ddb245e140ccde40c6egdaniel 7418dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder.setDisableColorXPFactory(); 7429853ccef19c200be93a6211f32589fa82a53067cjoshualitt 743ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com // if the target is MSAA then we want MSAA enabled when the clip is soft 744ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com if (rt->isMultisampled()) { 745d79c549467e5e7be025e38357f179b7965ed2ec3bsalomon pipelineBuilder.setState(GrPipelineBuilder::kHWAntialias_Flag, element->isAA()); 746ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com } 7471e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7489853ccef19c200be93a6211f32589fa82a53067cjoshualitt bool fillInverted = false; 7499853ccef19c200be93a6211f32589fa82a53067cjoshualitt // enabled at bottom of loop 7509853ccef19c200be93a6211f32589fa82a53067cjoshualitt fClipMode = kIgnoreClip_StencilClipMode; 7519853ccef19c200be93a6211f32589fa82a53067cjoshualitt 75245a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com // This will be used to determine whether the clip shape can be rendered into the 75345a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com // stencil with arbitrary stencil settings. 75445a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRenderer::StencilSupport stencilSupport; 7551e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7561899651ffc459f5462aa989cd6d08507947b67e4kkinnunen GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle); 7578182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 758f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com 759e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com GrPathRenderer* pr = NULL; 760e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org SkPath clipPath; 7618182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 76245a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com stencilSupport = GrPathRenderer::kNoRestriction_StencilSupport; 7631e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com fillInverted = false; 7648afae61a57f87e4a50578effce6c428031499301tomhudson@google.com } else { 765e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org element->asPath(&clipPath); 766e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org fillInverted = clipPath.isInverseFillType(); 767e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (fillInverted) { 768e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org clipPath.toggleInverseFillType(); 769e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com } 7709853ccef19c200be93a6211f32589fa82a53067cjoshualitt pr = this->getContext()->getPathRenderer(fClipTarget, 7718dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel &pipelineBuilder, 7728059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt viewMatrix, 7739853ccef19c200be93a6211f32589fa82a53067cjoshualitt clipPath, 77445a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com stroke, 77545a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com false, 77645a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRendererChain::kStencilOnly_DrawType, 777e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com &stencilSupport); 778e79f320ed6c5ec9f6164ba84be1ff586532e6517robertphillips@google.com if (NULL == pr) { 7791e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return false; 7801e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 7811e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 7821e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7831e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com int passes; 7841e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com GrStencilSettings stencilSettings[GrStencilSettings::kMaxStencilClipPasses]; 7851e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 78645a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com bool canRenderDirectToStencil = 78745a15f551b5b3c6c747d8eaf6466b7d3b76a8faebsalomon@google.com GrPathRenderer::kNoRestriction_StencilSupport == stencilSupport; 7881e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com bool canDrawDirectToClip; // Given the renderer, the element, 7894c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // fill rule, and set operation can 7904c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // we render the element directly to 7914c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // stencil bit used for clipping. 7924c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com canDrawDirectToClip = GrStencilSettings::GetClipPasses(op, 7934c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com canRenderDirectToStencil, 7944c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com clipBit, 7954c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com fillInverted, 7964c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com &passes, 7974c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com stencilSettings); 7981e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 7991e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // draw the element to the client stencil bits if necessary 8001e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com if (!canDrawDirectToClip) { 8011e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com GR_STATIC_CONST_SAME_STENCIL(gDrawToStencil, 8024c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kIncClamp_StencilOp, 8034c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kIncClamp_StencilOp, 8044c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com kAlways_StencilFunc, 8054c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0xffff, 8064c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0x0000, 8074c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 0xffff); 8088182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 8098dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilder.stencil() = gDrawToStencil; 81073bb4562a631d54ee2343ce2becea0070eb31a80joshualitt 81173bb4562a631d54ee2343ce2becea0070eb31a80joshualitt // We need this AGP until everything is in GrBatch 81244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilder, 81344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 81444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8158059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt element->getRect()); 8161e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 817e5b2af955b7d06815ddd405659ad62a2a8355ca3commit-bot@chromium.org if (!clipPath.isEmpty()) { 81819dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org if (canRenderDirectToStencil) { 8198dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilder.stencil() = gDrawToStencil; 82044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->drawPath(fClipTarget, &pipelineBuilder, GrColor_WHITE, 82144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, clipPath, stroke, false); 82219dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org } else { 82344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->stencilPath(fClipTarget, &pipelineBuilder, viewMatrix, 82444701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt clipPath, stroke); 82519dd017a6256be636ccb550752bb563c4e7caeb5commit-bot@chromium.org } 8261e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8271e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8281e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8291e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 8301e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // now we modify the clip bit by rendering either the clip 8311e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com // element directly or a bounding rect of the entire clip. 8327a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kModifyClip_StencilClipMode; 8331e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com for (int p = 0; p < passes; ++p) { 8348dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder pipelineBuilderCopy(pipelineBuilder); 8358dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel *pipelineBuilderCopy.stencil() = stencilSettings[p]; 8369853ccef19c200be93a6211f32589fa82a53067cjoshualitt 8371e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com if (canDrawDirectToClip) { 8388182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 83973bb4562a631d54ee2343ce2becea0070eb31a80joshualitt // We need this AGP until everything is in GrBatch 84044701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilderCopy, 84144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 84244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8432e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt element->getRect()); 8441e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 84544701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt pr->drawPath(fClipTarget, &pipelineBuilderCopy, GrColor_WHITE, 84644701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, clipPath, stroke, false); 8471e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8481e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } else { 8494c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The view matrix is setup to do clip space -> stencil space translation, so 8504c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // draw rect in clip space. 85144701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt fClipTarget->drawSimpleRect(&pipelineBuilderCopy, 85244701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt GrColor_WHITE, 85344701df5ce572ac3cccec785cf52103d3d5d14a5joshualitt viewMatrix, 8542e3b3e369d79e78f7635d4c20e83a47ab571bdf2joshualitt SkRect::Make(clipSpaceIBounds)); 8551e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8561e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8571e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 8581e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com } 859c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com // set this last because recursive draws may overwrite it back to kNone. 860f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 861c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kStencil_ClipMaskType; 8627a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt fClipMode = kRespectClip_StencilClipMode; 8631e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com return true; 8641e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 8651e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com 866411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com// mapping of clip-respecting stencil funcs to normal stencil funcs 867411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com// mapping depends on whether stencil-clipping is in effect. 868fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.comstatic const GrStencilFunc 869411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com gSpecialToBasicStencilFunc[2][kClipStencilFuncCount] = { 870411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com {// Stencil-Clipping is DISABLED, we are effectively always inside the clip 871411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // In the Clip Funcs 872411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kAlways_StencilFunc, // kAlwaysIfInClip_StencilFunc 873411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kEqualIfInClip_StencilFunc 874411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kLessIfInClip_StencilFunc 875411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLEqual_StencilFunc, // kLEqualIfInClip_StencilFunc 876411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // Special in the clip func that forces user's ref to be 0. 877411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kNotEqual_StencilFunc, // kNonZeroIfInClip_StencilFunc 878411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // make ref 0 and do normal nequal. 879411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com }, 880411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com {// Stencil-Clipping is ENABLED 881411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // In the Clip Funcs 882411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kAlwaysIfInClip_StencilFunc 883411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // eq stencil clip bit, mask 884411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // out user bits. 885411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 886411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kEqual_StencilFunc, // kEqualIfInClip_StencilFunc 887411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // add stencil bit to mask and ref 888411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 889411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kLessIfInClip_StencilFunc 890411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLEqual_StencilFunc, // kLEqualIfInClip_StencilFunc 891411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // for both of these we can add 892411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // the clip bit to the mask and 893411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // ref and compare as normal 894411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // Special in the clip func that forces user's ref to be 0. 895411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com kLess_StencilFunc, // kNonZeroIfInClip_StencilFunc 896411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // make ref have only the clip bit set 897411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // and make comparison be less 898411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com // 10..0 < 1..user_bits.. 899411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 900411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com}; 901411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 902a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comnamespace { 903a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com// Sets the settings to clip against the stencil buffer clip while ignoring the 904a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com// client bits. 905a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comconst GrStencilSettings& basic_apply_stencil_clip_settings() { 906a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // stencil settings to use when clip is in stencil 907a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GR_STATIC_CONST_SAME_STENCIL_STRUCT(gSettings, 908a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kKeep_StencilOp, 909a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kKeep_StencilOp, 910a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com kAlwaysIfInClip_StencilFunc, 911a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 0x0000, 912a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 0x0000, 913fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 0x0000); 914a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return *GR_CONST_STENCIL_SETTINGS_PTR_FROM_STRUCT_PTR(&gSettings); 915a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 916a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 917a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 9188dd688b7569df569a672a8a67b2db86a9d376cfcegdanielvoid GrClipMaskManager::setPipelineBuilderStencil(GrPipelineBuilder* pipelineBuilder, 9198dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel GrPipelineBuilder::AutoRestoreStencil* ars) { 920a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // We make two copies of the StencilSettings here (except in the early 921a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // exit scenario. One copy from draw state to the stack var. Then another 922a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // from the stack var to the gpu. We could make this class hold a ptr to 923a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // GrGpu's fStencilSettings and eliminate the stack copy here. 924a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 925a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // use stencil for clipping if clipping is enabled and the clip 926a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // has been written into the stencil. 927a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilSettings settings; 9289853ccef19c200be93a6211f32589fa82a53067cjoshualitt 929a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // The GrGpu client may not be using the stencil buffer but we may need to 930a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // enable it in order to respect a stencil clip. 9318dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel if (pipelineBuilder->getStencil().isDisabled()) { 9327a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt if (GrClipMaskManager::kRespectClip_StencilClipMode == fClipMode) { 933a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings = basic_apply_stencil_clip_settings(); 934a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 935a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return; 936a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 937a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 9388dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel settings = pipelineBuilder->getStencil(); 939a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 940a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 941a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int stencilBits = 0; 9426bc1b5fab8554a9cb643277b4867965dd4535cd6bsalomon GrRenderTarget* rt = pipelineBuilder->getRenderTarget(); 9438dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel GrStencilAttachment* stencilAttachment = rt->renderTargetPriv().attachStencilAttachment(); 9448dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel if (stencilAttachment) { 9458dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel stencilBits = stencilAttachment->bits(); 946a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 947a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 948329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt SkASSERT(fClipTarget->caps()->stencilWrapOpsSupport() || !settings.usesWrapOp()); 949329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt SkASSERT(fClipTarget->caps()->twoSidedStencilSupport() || !settings.isTwoSided()); 9507a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt this->adjustStencilParams(&settings, fClipMode, stencilBits); 9518dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel ars->set(pipelineBuilder); 9528dd688b7569df569a672a8a67b2db86a9d376cfcegdaniel pipelineBuilder->setStencil(settings); 953a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com} 954a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 955a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.comvoid GrClipMaskManager::adjustStencilParams(GrStencilSettings* settings, 956a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com StencilClipMode mode, 957a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int stencilBitCnt) { 958f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(stencilBitCnt > 0); 959411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 960411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com if (kModifyClip_StencilClipMode == mode) { 961a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // We assume that this clip manager itself is drawing to the GrGpu and 962a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // has already setup the correct values. 963a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com return; 964411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 965a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 966411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com unsigned int clipBit = (1 << (stencilBitCnt - 1)); 967411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com unsigned int userBits = clipBit - 1; 968411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 969a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilSettings::Face face = GrStencilSettings::kFront_Face; 970329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt bool twoSided = fClipTarget->caps()->twoSidedStencilSupport(); 971a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 972a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com bool finished = false; 973a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com while (!finished) { 974a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com GrStencilFunc func = settings->func(face); 975a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t writeMask = settings->writeMask(face); 976a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t funcMask = settings->funcMask(face); 977a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com uint16_t funcRef = settings->funcRef(face); 978a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 979f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT((unsigned) func < kStencilFuncCount); 980a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 981a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com writeMask &= userBits; 982a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 983a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (func >= kBasicStencilFuncCount) { 984a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com int respectClip = kRespectClip_StencilClipMode == mode; 985a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (respectClip) { 986a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com // The GrGpu class should have checked this 987f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(this->isClipInStencil()); 988a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com switch (func) { 989a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kAlwaysIfInClip_StencilFunc: 990a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = clipBit; 991a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = clipBit; 992a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 993a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kEqualIfInClip_StencilFunc: 994a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kLessIfInClip_StencilFunc: 995a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kLEqualIfInClip_StencilFunc: 996a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = (funcMask & userBits) | clipBit; 997a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = (funcRef & userBits) | clipBit; 998a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 999a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com case kNonZeroIfInClip_StencilFunc: 1000a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask = (funcMask & userBits) | clipBit; 1001a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef = clipBit; 1002a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com break; 1003a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com default: 100488cb22b6b4816c7a9ca6c5b795965b4606f9eb7bcommit-bot@chromium.org SkFAIL("Unknown stencil func"); 1005a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 1006a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 1007a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask &= userBits; 1008a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef &= userBits; 1009411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 1010fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com const GrStencilFunc* table = 1011a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com gSpecialToBasicStencilFunc[respectClip]; 1012a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com func = table[func - kBasicStencilFuncCount]; 1013f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(func >= 0 && func < kBasicStencilFuncCount); 1014411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } else { 1015a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcMask &= userBits; 1016a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com funcRef &= userBits; 1017411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 1018a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 1019a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFunc(face, func); 1020a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setWriteMask(face, writeMask); 1021a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFuncMask(face, funcMask); 1022a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->setFuncRef(face, funcRef); 1023a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com 1024a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (GrStencilSettings::kFront_Face == face) { 1025a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com face = GrStencilSettings::kBack_Face; 1026a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com finished = !twoSided; 1027a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } else { 1028a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com finished = true; 1029a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 1030a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com } 1031a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com if (!twoSided) { 1032a320194e4242ef0e5e758aea896bfd52bcb3dac7bsalomon@google.com settings->copyFrontSettingsToBack(); 1033411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com } 1034411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com} 1035411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com 1036411dad0630913fc07f2412b4be17acfbfd914fbcbsalomon@google.com//////////////////////////////////////////////////////////////////////////////// 1037d3e5842db0cb169e10d6da1e62c94ba5cf182bb4commit-bot@chromium.orgGrTexture* GrClipMaskManager::createSoftwareClipMask(int32_t elementsGenID, 10384c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com GrReducedClip::InitialState initialState, 10394c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const GrReducedClip::ElementList& elements, 10408059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt const SkVector& clipToMaskOffset, 10414c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const SkIRect& clipSpaceIBounds) { 1042f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(kNone_ClipMaskType == fCurrClipMaskType); 10436b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1044ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski GrTexture* result = this->getCachedMaskTexture(elementsGenID, clipSpaceIBounds); 104549f085dddff10473b6ebf832a974288300224e60bsalomon if (result) { 10464c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 10476b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10486b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 10494c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // The mask texture may be larger than necessary. We round out the clip space bounds and pin 10504c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // the top left corner of the resulting rect to the top left of the texture. 10514c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com SkIRect maskSpaceIBounds = SkIRect::MakeWH(clipSpaceIBounds.width(), clipSpaceIBounds.height()); 10524c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 10532c75681e36b33fcafc5665d7012bbd4fc6647d83robertphillips@google.com GrSWMaskHelper helper(this->getContext()); 10546b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 10558059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // Set the matrix so that rendered clip elements are transformed to mask space from clip 10568059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt // space. 10578059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt SkMatrix translate; 10588059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt translate.setTranslate(clipToMaskOffset); 10594c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com 10608059eb9f6e24ed609393fbda4ad71edea03ac258joshualitt helper.init(maskSpaceIBounds, &translate, false); 1061bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina helper.clear(GrReducedClip::kAllIn_InitialState == initialState ? 0xFF : 0x00); 10625f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle); 106312b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com 1064bf54e49e30cdc92f9ce3f336cc48cf6b236ddeabtfarina for (GrReducedClip::ElementList::Iter iter(elements.headIter()) ; iter.get(); iter.next()) { 10654c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com const Element* element = iter.get(); 10668182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com SkRegion::Op op = element->getOp(); 1067fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com 10684c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com if (SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) { 10694c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // Intersect and reverse difference require modifying pixels outside of the geometry 10704c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // that is being "drawn". In both cases we erase all the pixels outside of the geometry 10714c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // but leave the pixels inside the geometry alone. For reverse difference we invert all 10724c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com // the pixels before clearing the ones outside the geometry. 1073fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com if (SkRegion::kReverseDifference_Op == op) { 10744469938e92d779dff05e745559e67907bbf21e78reed@google.com SkRect temp = SkRect::Make(clipSpaceIBounds); 1075fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // invert the entire scene 1076366f1c6a09f63c76e78145cb08028f66062f31fdrobertphillips@google.com helper.draw(temp, SkRegion::kXOR_Op, false, 0xFF); 1077fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 10785c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org SkPath clipPath; 10795c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org element->asPath(&clipPath); 10805c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org clipPath.toggleInverseFillType(); 10815c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org helper.draw(clipPath, stroke, SkRegion::kReplace_Op, element->isAA(), 0x00); 1082fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com continue; 1083fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com } 1084fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com 1085fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // The other ops (union, xor, diff) only affect pixels inside 1086fa66294c7705831808ce7772d4328fc626d45034robertphillips@google.com // the geometry so they can just be drawn normally 10878182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com if (Element::kRect_Type == element->getType()) { 10888182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com helper.draw(element->getRect(), op, element->isAA(), 0xFF); 10898182fa0cac76e7e6d583aebba060229230516887bsalomon@google.com } else { 10905c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org SkPath path; 10915c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org element->asPath(&path); 10925c056399259bb7ec06ff1eb8ce904001b363276ccommit-bot@chromium.org helper.draw(path, stroke, op, element->isAA(), 0xFF); 10936b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10946b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com } 10956b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1096ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski // Allocate clip mask texture 1097ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski result = this->allocMaskTexture(elementsGenID, clipSpaceIBounds, true); 1098ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski if (NULL == result) { 1099ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski fAACache.reset(); 1100ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski return NULL; 1101ad1dc589cef8aebf7e14672ffdaa31c6d399675dkrajcevski } 1102d92cf2ebbfbb9d737ea4a551e64ffccb08376875robertphillips@google.com helper.toTexture(result); 11036b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1104c8f7f47afaf8f9471e6d111655c5610a8bd210a2bsalomon@google.com fCurrClipMaskType = kAlpha_ClipMaskType; 11054c2443e36fdc6c095b17e90baa4a2f26a6f00b08bsalomon@google.com return result; 11066b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com} 11076b70a7bd3328ea0a12be47b1a7f835c905f16147robertphillips@google.com 1108f294b773f0b2b9f05eb45b52dd3cb4d97b96af06robertphillips@google.com//////////////////////////////////////////////////////////////////////////////// 1109c8dc1f74b6cdda9a43a638292a608c59c1d72d80bsalomonvoid GrClipMaskManager::purgeResources() { 1110c8dc1f74b6cdda9a43a638292a608c59c1d72d80bsalomon fAACache.purgeResources(); 11111e945b7e708c633d4aed937ebfce57d52ba21d83robertphillips@google.com} 11126e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com 1113329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualittvoid GrClipMaskManager::setClipTarget(GrClipTarget* clipTarget) { 1114329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fClipTarget = clipTarget; 1115329bf4862e9d5e05363c2b071d8ca475a0ef1952joshualitt fAACache.setContext(clipTarget->getContext()); 11166e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com} 1117c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 11188dc7c3a839b38b73af34cc2674a06f49eb1ce527egdanielvoid GrClipMaskManager::adjustPathStencilParams(const GrStencilAttachment* stencilAttachment, 11199853ccef19c200be93a6211f32589fa82a53067cjoshualitt GrStencilSettings* settings) { 11208dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel if (stencilAttachment) { 11218dc7c3a839b38b73af34cc2674a06f49eb1ce527egdaniel int stencilBits = stencilAttachment->bits(); 11227a6184fdf717a1da0c6e1e37b942b17fdaa236d3joshualitt this->adjustStencilParams(settings, fClipMode, stencilBits); 1123c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 1124c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org} 1125