The Tor Browser: gfx/skia/trunk/src/gpu/GrDrawTarget.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/GrDrawTarget.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/GrDrawTarget.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "GrDrawTarget.h"
 #include "GrContext.h"
 #include "GrDrawTargetCaps.h"
 #include "GrPath.h"
 #include "GrRenderTarget.h"
 #include "GrTexture.h"
 #include "GrVertexBuffer.h"
 #include "SkStrokeRec.h"
 ////////////////////////////////////////////////////////////////////////////////
 GrDrawTarget::DrawInfo& GrDrawTarget::DrawInfo::operator =(const DrawInfo& di) {
     fPrimitiveType  = di.fPrimitiveType;
     fStartVertex    = di.fStartVertex;
     fStartIndex     = di.fStartIndex;
     fVertexCount    = di.fVertexCount;
     fIndexCount     = di.fIndexCount;
     fInstanceCount          = di.fInstanceCount;
     fVerticesPerInstance    = di.fVerticesPerInstance;
     fIndicesPerInstance     = di.fIndicesPerInstance;
     if (NULL != di.fDevBounds) {
         SkASSERT(di.fDevBounds == &di.fDevBoundsStorage);
         fDevBoundsStorage = di.fDevBoundsStorage;
         fDevBounds = &fDevBoundsStorage;
     } else {
         fDevBounds = NULL;
     }
     fDstCopy = di.fDstCopy;
     return *this;
 }
 #ifdef SK_DEBUG
 bool GrDrawTarget::DrawInfo::isInstanced() const {
     if (fInstanceCount > 0) {
         SkASSERT(0 == fIndexCount % fIndicesPerInstance);
         SkASSERT(0 == fVertexCount % fVerticesPerInstance);
         SkASSERT(fIndexCount / fIndicesPerInstance == fInstanceCount);
         SkASSERT(fVertexCount / fVerticesPerInstance == fInstanceCount);
         // there is no way to specify a non-zero start index to drawIndexedInstances().
         SkASSERT(0 == fStartIndex);
         return true;
     } else {
         SkASSERT(!fVerticesPerInstance);
         SkASSERT(!fIndicesPerInstance);
         return false;
     }
 }
 #endif
 void GrDrawTarget::DrawInfo::adjustInstanceCount(int instanceOffset) {
     SkASSERT(this->isInstanced());
     SkASSERT(instanceOffset + fInstanceCount >= 0);
     fInstanceCount += instanceOffset;
     fVertexCount = fVerticesPerInstance * fInstanceCount;
     fIndexCount = fIndicesPerInstance * fInstanceCount;
 }
 void GrDrawTarget::DrawInfo::adjustStartVertex(int vertexOffset) {
     fStartVertex += vertexOffset;
     SkASSERT(fStartVertex >= 0);
 }
 void GrDrawTarget::DrawInfo::adjustStartIndex(int indexOffset) {
     SkASSERT(this->isIndexed());
     fStartIndex += indexOffset;
     SkASSERT(fStartIndex >= 0);
 }
 ////////////////////////////////////////////////////////////////////////////////
 #define DEBUG_INVAL_BUFFER 0xdeadcafe
 #define DEBUG_INVAL_START_IDX -1
 GrDrawTarget::GrDrawTarget(GrContext* context)
     : fClip(NULL)
     , fContext(context)
     , fPushGpuTraceCount(0) {
     SkASSERT(NULL != context);
     fDrawState = &fDefaultDrawState;
     // We assume that fDrawState always owns a ref to the object it points at.
     fDefaultDrawState.ref();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.push_back();
 #ifdef SK_DEBUG
     geoSrc.fVertexCount = DEBUG_INVAL_START_IDX;
     geoSrc.fVertexBuffer = (GrVertexBuffer*)DEBUG_INVAL_BUFFER;
     geoSrc.fIndexCount = DEBUG_INVAL_START_IDX;
     geoSrc.fIndexBuffer = (GrIndexBuffer*)DEBUG_INVAL_BUFFER;
 #endif
     geoSrc.fVertexSrc = kNone_GeometrySrcType;
     geoSrc.fIndexSrc  = kNone_GeometrySrcType;
 }
 GrDrawTarget::~GrDrawTarget() {
     SkASSERT(1 == fGeoSrcStateStack.count());
     SkDEBUGCODE(GeometrySrcState& geoSrc = fGeoSrcStateStack.back());
     SkASSERT(kNone_GeometrySrcType == geoSrc.fIndexSrc);
     SkASSERT(kNone_GeometrySrcType == geoSrc.fVertexSrc);
     fDrawState->unref();
 }
 void GrDrawTarget::releaseGeometry() {
     int popCnt = fGeoSrcStateStack.count() - 1;
     while (popCnt) {
         this->popGeometrySource();
         --popCnt;
     }
     this->resetVertexSource();
     this->resetIndexSource();
 }
 void GrDrawTarget::setClip(const GrClipData* clip) {
     clipWillBeSet(clip);
     fClip = clip;
 }
 const GrClipData* GrDrawTarget::getClip() const {
     return fClip;
 }
 void GrDrawTarget::setDrawState(GrDrawState*  drawState) {
     SkASSERT(NULL != fDrawState);
     if (NULL == drawState) {
         drawState = &fDefaultDrawState;
     }
     if (fDrawState != drawState) {
         fDrawState->unref();
         drawState->ref();
         fDrawState = drawState;
     }
 }
 bool GrDrawTarget::reserveVertexSpace(size_t vertexSize,
                                       int vertexCount,
                                       void** vertices) {
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     bool acquired = false;
     if (vertexCount > 0) {
         SkASSERT(NULL != vertices);
         this->releasePreviousVertexSource();
         geoSrc.fVertexSrc = kNone_GeometrySrcType;
         acquired = this->onReserveVertexSpace(vertexSize,
                                               vertexCount,
                                               vertices);
     }
     if (acquired) {
         geoSrc.fVertexSrc = kReserved_GeometrySrcType;
         geoSrc.fVertexCount = vertexCount;
         geoSrc.fVertexSize = vertexSize;
     } else if (NULL != vertices) {
         *vertices = NULL;
     }
     return acquired;
 }
 bool GrDrawTarget::reserveIndexSpace(int indexCount,
                                      void** indices) {
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     bool acquired = false;
     if (indexCount > 0) {
         SkASSERT(NULL != indices);
         this->releasePreviousIndexSource();
         geoSrc.fIndexSrc = kNone_GeometrySrcType;
         acquired = this->onReserveIndexSpace(indexCount, indices);
     }
     if (acquired) {
         geoSrc.fIndexSrc = kReserved_GeometrySrcType;
         geoSrc.fIndexCount = indexCount;
     } else if (NULL != indices) {
         *indices = NULL;
     }
     return acquired;
 }
 bool GrDrawTarget::reserveVertexAndIndexSpace(int vertexCount,
                                               int indexCount,
                                               void** vertices,
                                               void** indices) {
     size_t vertexSize = this->drawState()->getVertexSize();
     this->willReserveVertexAndIndexSpace(vertexCount, indexCount);
     if (vertexCount) {
         if (!this->reserveVertexSpace(vertexSize, vertexCount, vertices)) {
             if (indexCount) {
                 this->resetIndexSource();
             }
             return false;
         }
     }
     if (indexCount) {
         if (!this->reserveIndexSpace(indexCount, indices)) {
             if (vertexCount) {
                 this->resetVertexSource();
             }
             return false;
         }
     }
     return true;
 }
 bool GrDrawTarget::geometryHints(int32_t* vertexCount,
                                  int32_t* indexCount) const {
     if (NULL != vertexCount) {
         *vertexCount = -1;
     }
     if (NULL != indexCount) {
         *indexCount = -1;
     }
     return false;
 }
 void GrDrawTarget::releasePreviousVertexSource() {
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     switch (geoSrc.fVertexSrc) {
         case kNone_GeometrySrcType:
             break;
         case kArray_GeometrySrcType:
             this->releaseVertexArray();
             break;
         case kReserved_GeometrySrcType:
             this->releaseReservedVertexSpace();
             break;
         case kBuffer_GeometrySrcType:
             geoSrc.fVertexBuffer->unref();
 #ifdef SK_DEBUG
             geoSrc.fVertexBuffer = (GrVertexBuffer*)DEBUG_INVAL_BUFFER;
 #endif
             break;
         default:
             GrCrash("Unknown Vertex Source Type.");
             break;
     }
 }
 void GrDrawTarget::releasePreviousIndexSource() {
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     switch (geoSrc.fIndexSrc) {
         case kNone_GeometrySrcType:   // these two don't require
             break;
         case kArray_GeometrySrcType:
             this->releaseIndexArray();
             break;
         case kReserved_GeometrySrcType:
             this->releaseReservedIndexSpace();
             break;
         case kBuffer_GeometrySrcType:
             geoSrc.fIndexBuffer->unref();
 #ifdef SK_DEBUG
             geoSrc.fIndexBuffer = (GrIndexBuffer*)DEBUG_INVAL_BUFFER;
 #endif
             break;
         default:
             GrCrash("Unknown Index Source Type.");
             break;
     }
 }
 void GrDrawTarget::setVertexSourceToArray(const void* vertexArray,
                                           int vertexCount) {
     this->releasePreviousVertexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fVertexSrc = kArray_GeometrySrcType;
     geoSrc.fVertexSize = this->drawState()->getVertexSize();
     geoSrc.fVertexCount = vertexCount;
     this->onSetVertexSourceToArray(vertexArray, vertexCount);
 }
 void GrDrawTarget::setIndexSourceToArray(const void* indexArray,
                                          int indexCount) {
     this->releasePreviousIndexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fIndexSrc = kArray_GeometrySrcType;
     geoSrc.fIndexCount = indexCount;
     this->onSetIndexSourceToArray(indexArray, indexCount);
 }
 void GrDrawTarget::setVertexSourceToBuffer(const GrVertexBuffer* buffer) {
     this->releasePreviousVertexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fVertexSrc    = kBuffer_GeometrySrcType;
     geoSrc.fVertexBuffer = buffer;
     buffer->ref();
     geoSrc.fVertexSize = this->drawState()->getVertexSize();
 }
 void GrDrawTarget::setIndexSourceToBuffer(const GrIndexBuffer* buffer) {
     this->releasePreviousIndexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fIndexSrc     = kBuffer_GeometrySrcType;
     geoSrc.fIndexBuffer  = buffer;
     buffer->ref();
 }
 void GrDrawTarget::resetVertexSource() {
     this->releasePreviousVertexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fVertexSrc = kNone_GeometrySrcType;
 }
 void GrDrawTarget::resetIndexSource() {
     this->releasePreviousIndexSource();
     GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     geoSrc.fIndexSrc = kNone_GeometrySrcType;
 }
 void GrDrawTarget::pushGeometrySource() {
     this->geometrySourceWillPush();
     GeometrySrcState& newState = fGeoSrcStateStack.push_back();
     newState.fIndexSrc = kNone_GeometrySrcType;
     newState.fVertexSrc = kNone_GeometrySrcType;
 #ifdef SK_DEBUG
     newState.fVertexCount  = ~0;
     newState.fVertexBuffer = (GrVertexBuffer*)~0;
     newState.fIndexCount   = ~0;
     newState.fIndexBuffer = (GrIndexBuffer*)~0;
 #endif
 }
 void GrDrawTarget::popGeometrySource() {
     // if popping last element then pops are unbalanced with pushes
     SkASSERT(fGeoSrcStateStack.count() > 1);
     this->geometrySourceWillPop(fGeoSrcStateStack.fromBack(1));
     this->releasePreviousVertexSource();
     this->releasePreviousIndexSource();
     fGeoSrcStateStack.pop_back();
 }
 ////////////////////////////////////////////////////////////////////////////////
 bool GrDrawTarget::checkDraw(GrPrimitiveType type, int startVertex,
                              int startIndex, int vertexCount,
                              int indexCount) const {
     const GrDrawState& drawState = this->getDrawState();
 #ifdef SK_DEBUG
     const GeometrySrcState& geoSrc = fGeoSrcStateStack.back();
     int maxVertex = startVertex + vertexCount;
     int maxValidVertex;
     switch (geoSrc.fVertexSrc) {
         case kNone_GeometrySrcType:
             GrCrash("Attempting to draw without vertex src.");
         case kReserved_GeometrySrcType: // fallthrough
         case kArray_GeometrySrcType:
             maxValidVertex = geoSrc.fVertexCount;
             break;
         case kBuffer_GeometrySrcType:
             maxValidVertex = static_cast<int>(geoSrc.fVertexBuffer->sizeInBytes() / geoSrc.fVertexSize);
             break;
     }
     if (maxVertex > maxValidVertex) {
         GrCrash("Drawing outside valid vertex range.");
     }
     if (indexCount > 0) {
         int maxIndex = startIndex + indexCount;
         int maxValidIndex;
         switch (geoSrc.fIndexSrc) {
             case kNone_GeometrySrcType:
                 GrCrash("Attempting to draw indexed geom without index src.");
             case kReserved_GeometrySrcType: // fallthrough
             case kArray_GeometrySrcType:
                 maxValidIndex = geoSrc.fIndexCount;
                 break;
             case kBuffer_GeometrySrcType:
                 maxValidIndex = static_cast<int>(geoSrc.fIndexBuffer->sizeInBytes() / sizeof(uint16_t));
                 break;
         }
         if (maxIndex > maxValidIndex) {
             GrCrash("Index reads outside valid index range.");
         }
     }
     SkASSERT(NULL != drawState.getRenderTarget());
     for (int s = 0; s < drawState.numColorStages(); ++s) {
         const GrEffectRef& effect = *drawState.getColorStage(s).getEffect();
         int numTextures = effect->numTextures();
         for (int t = 0; t < numTextures; ++t) {
             GrTexture* texture = effect->texture(t);
             SkASSERT(texture->asRenderTarget() != drawState.getRenderTarget());
         }
     }
     for (int s = 0; s < drawState.numCoverageStages(); ++s) {
         const GrEffectRef& effect = *drawState.getCoverageStage(s).getEffect();
         int numTextures = effect->numTextures();
         for (int t = 0; t < numTextures; ++t) {
             GrTexture* texture = effect->texture(t);
             SkASSERT(texture->asRenderTarget() != drawState.getRenderTarget());
         }
     }
     SkASSERT(drawState.validateVertexAttribs());
 #endif
     if (NULL == drawState.getRenderTarget()) {
         return false;
     }
     return true;
 }
 bool GrDrawTarget::setupDstReadIfNecessary(GrDeviceCoordTexture* dstCopy, const SkRect* drawBounds) {
     if (this->caps()->dstReadInShaderSupport() || !this->getDrawState().willEffectReadDstColor()) {
         return true;
     }
     GrRenderTarget* rt = this->drawState()->getRenderTarget();
     SkIRect copyRect;
     const GrClipData* clip = this->getClip();
     clip->getConservativeBounds(rt, &copyRect);
     if (NULL != drawBounds) {
         SkIRect drawIBounds;
         drawBounds->roundOut(&drawIBounds);
         if (!copyRect.intersect(drawIBounds)) {
 #ifdef SK_DEBUG
             GrPrintf("Missed an early reject. Bailing on draw from setupDstReadIfNecessary.\n");
 #endif
             return false;
         }
     } else {
 #ifdef SK_DEBUG
         //GrPrintf("No dev bounds when dst copy is made.\n");
 #endif
     }
     // MSAA consideration: When there is support for reading MSAA samples in the shader we could
     // have per-sample dst values by making the copy multisampled.
     GrTextureDesc desc;
     this->initCopySurfaceDstDesc(rt, &desc);
     desc.fWidth = copyRect.width();
     desc.fHeight = copyRect.height();
     GrAutoScratchTexture ast(fContext, desc, GrContext::kApprox_ScratchTexMatch);
     if (NULL == ast.texture()) {
         GrPrintf("Failed to create temporary copy of destination texture.\n");
         return false;
     }
     SkIPoint dstPoint = {0, 0};
     if (this->copySurface(ast.texture(), rt, copyRect, dstPoint)) {
         dstCopy->setTexture(ast.texture());
         dstCopy->setOffset(copyRect.fLeft, copyRect.fTop);
         return true;
     } else {
         return false;
     }
 }
 void GrDrawTarget::drawIndexed(GrPrimitiveType type,
                                int startVertex,
                                int startIndex,
                                int vertexCount,
                                int indexCount,
                                const SkRect* devBounds) {
     if (indexCount > 0 && this->checkDraw(type, startVertex, startIndex, vertexCount, indexCount)) {
         DrawInfo info;
         info.fPrimitiveType = type;
         info.fStartVertex   = startVertex;
         info.fStartIndex    = startIndex;
         info.fVertexCount   = vertexCount;
         info.fIndexCount    = indexCount;
         info.fInstanceCount         = 0;
         info.fVerticesPerInstance   = 0;
         info.fIndicesPerInstance    = 0;
         if (NULL != devBounds) {
             info.setDevBounds(*devBounds);
         }
         // TODO: We should continue with incorrect blending.
         if (!this->setupDstReadIfNecessary(&info)) {
             return;
         }
         this->onDraw(info);
     }
 }
 void GrDrawTarget::drawNonIndexed(GrPrimitiveType type,
                                   int startVertex,
                                   int vertexCount,
                                   const SkRect* devBounds) {
     if (vertexCount > 0 && this->checkDraw(type, startVertex, -1, vertexCount, -1)) {
         DrawInfo info;
         info.fPrimitiveType = type;
         info.fStartVertex   = startVertex;
         info.fStartIndex    = 0;
         info.fVertexCount   = vertexCount;
         info.fIndexCount    = 0;
         info.fInstanceCount         = 0;
         info.fVerticesPerInstance   = 0;
         info.fIndicesPerInstance    = 0;
         if (NULL != devBounds) {
             info.setDevBounds(*devBounds);
         }
         // TODO: We should continue with incorrect blending.
         if (!this->setupDstReadIfNecessary(&info)) {
             return;
         }
         this->onDraw(info);
     }
 }
 void GrDrawTarget::stencilPath(const GrPath* path, SkPath::FillType fill) {
     // TODO: extract portions of checkDraw that are relevant to path stenciling.
     SkASSERT(NULL != path);
     SkASSERT(this->caps()->pathRenderingSupport());
     SkASSERT(!SkPath::IsInverseFillType(fill));
     this->onStencilPath(path, fill);
 }
 void GrDrawTarget::drawPath(const GrPath* path, SkPath::FillType fill) {
     // TODO: extract portions of checkDraw that are relevant to path rendering.
     SkASSERT(NULL != path);
     SkASSERT(this->caps()->pathRenderingSupport());
     const GrDrawState* drawState = &getDrawState();
     SkRect devBounds;
     if (SkPath::IsInverseFillType(fill)) {
         devBounds = SkRect::MakeWH(SkIntToScalar(drawState->getRenderTarget()->width()),
                                    SkIntToScalar(drawState->getRenderTarget()->height()));
     } else {
         devBounds = path->getBounds();
     }
     SkMatrix viewM = drawState->getViewMatrix();
     viewM.mapRect(&devBounds);
     GrDeviceCoordTexture dstCopy;
     if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
         return;
     }
     this->onDrawPath(path, fill, dstCopy.texture() ? &dstCopy : NULL);
 }
 void GrDrawTarget::instantGpuTraceEvent(const char* marker) {
     if (this->caps()->gpuTracingSupport()) {
         this->onInstantGpuTraceEvent(marker);
     }
 }
 void GrDrawTarget::pushGpuTraceEvent(const char* marker) {
     SkASSERT(fPushGpuTraceCount >= 0);
     if (this->caps()->gpuTracingSupport()) {
         this->onPushGpuTraceEvent(marker);
         ++fPushGpuTraceCount;
     }
 }
 void GrDrawTarget::popGpuTraceEvent() {
     SkASSERT(fPushGpuTraceCount >= 1);
     if (this->caps()->gpuTracingSupport()) {
         this->onPopGpuTraceEvent();
         --fPushGpuTraceCount;
     }
 }
 ////////////////////////////////////////////////////////////////////////////////
 bool GrDrawTarget::willUseHWAALines() const {
     // There is a conflict between using smooth lines and our use of premultiplied alpha. Smooth
     // lines tweak the incoming alpha value but not in a premul-alpha way. So we only use them when
     // our alpha is 0xff and tweaking the color for partial coverage is OK
     if (!this->caps()->hwAALineSupport() ||
         !this->getDrawState().isHWAntialiasState()) {
         return false;
     }
     GrDrawState::BlendOptFlags opts = this->getDrawState().getBlendOpts();
     return (GrDrawState::kDisableBlend_BlendOptFlag & opts) &&
            (GrDrawState::kCoverageAsAlpha_BlendOptFlag & opts);
 }
 bool GrDrawTarget::canApplyCoverage() const {
     // we can correctly apply coverage if a) we have dual source blending
     // or b) one of our blend optimizations applies.
     return this->caps()->dualSourceBlendingSupport() ||
            GrDrawState::kNone_BlendOpt != this->getDrawState().getBlendOpts(true);
 }
 ////////////////////////////////////////////////////////////////////////////////
 void GrDrawTarget::drawIndexedInstances(GrPrimitiveType type,
                                         int instanceCount,
                                         int verticesPerInstance,
                                         int indicesPerInstance,
                                         const SkRect* devBounds) {
     if (!verticesPerInstance || !indicesPerInstance) {
         return;
     }
     int maxInstancesPerDraw = this->indexCountInCurrentSource() / indicesPerInstance;
     if (!maxInstancesPerDraw) {
         return;
     }
     DrawInfo info;
     info.fPrimitiveType = type;
     info.fStartIndex = 0;
     info.fStartVertex = 0;
     info.fIndicesPerInstance = indicesPerInstance;
     info.fVerticesPerInstance = verticesPerInstance;
     // Set the same bounds for all the draws.
     if (NULL != devBounds) {
         info.setDevBounds(*devBounds);
     }
     // TODO: We should continue with incorrect blending.
     if (!this->setupDstReadIfNecessary(&info)) {
         return;
     }
     while (instanceCount) {
         info.fInstanceCount = GrMin(instanceCount, maxInstancesPerDraw);
         info.fVertexCount = info.fInstanceCount * verticesPerInstance;
         info.fIndexCount = info.fInstanceCount * indicesPerInstance;
         if (this->checkDraw(type,
                             info.fStartVertex,
                             info.fStartIndex,
                             info.fVertexCount,
                             info.fIndexCount)) {
             this->onDraw(info);
         }
         info.fStartVertex += info.fVertexCount;
         instanceCount -= info.fInstanceCount;
     }
 }
 ////////////////////////////////////////////////////////////////////////////////
 namespace {
 // position + (optional) texture coord
 extern const GrVertexAttrib gBWRectPosUVAttribs[] = {
     {kVec2f_GrVertexAttribType, 0,               kPosition_GrVertexAttribBinding},
     {kVec2f_GrVertexAttribType, sizeof(GrPoint), kLocalCoord_GrVertexAttribBinding}
 };
 void set_vertex_attributes(GrDrawState* drawState, bool hasUVs) {
     if (hasUVs) {
         drawState->setVertexAttribs<gBWRectPosUVAttribs>(2);
     } else {
         drawState->setVertexAttribs<gBWRectPosUVAttribs>(1);
     }
 }
 };
 void GrDrawTarget::onDrawRect(const SkRect& rect,
                               const SkMatrix* matrix,
                               const SkRect* localRect,
                               const SkMatrix* localMatrix) {
     GrDrawState::AutoViewMatrixRestore avmr;
     if (NULL != matrix) {
         avmr.set(this->drawState(), *matrix);
     }
     set_vertex_attributes(this->drawState(), NULL != localRect);
     AutoReleaseGeometry geo(this, 4, 0);
     if (!geo.succeeded()) {
         GrPrintf("Failed to get space for vertices!\n");
         return;
     }
     size_t vsize = this->drawState()->getVertexSize();
     geo.positions()->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, vsize);
     if (NULL != localRect) {
         GrPoint* coords = GrTCast<GrPoint*>(GrTCast<intptr_t>(geo.vertices()) +
                                             sizeof(GrPoint));
         coords->setRectFan(localRect->fLeft, localRect->fTop,
                            localRect->fRight, localRect->fBottom,
                            vsize);
         if (NULL != localMatrix) {
             localMatrix->mapPointsWithStride(coords, vsize, 4);
         }
     }
     SkRect bounds;
     this->getDrawState().getViewMatrix().mapRect(&bounds, rect);
     this->drawNonIndexed(kTriangleFan_GrPrimitiveType, 0, 4, &bounds);
 }
 void GrDrawTarget::clipWillBeSet(const GrClipData* clipData) {
 }
 ////////////////////////////////////////////////////////////////////////////////
 GrDrawTarget::AutoStateRestore::AutoStateRestore() {
     fDrawTarget = NULL;
 }
 GrDrawTarget::AutoStateRestore::AutoStateRestore(GrDrawTarget* target,
                                                  ASRInit init,
                                                  const SkMatrix* vm) {
     fDrawTarget = NULL;
     this->set(target, init, vm);
 }
 GrDrawTarget::AutoStateRestore::~AutoStateRestore() {
     if (NULL != fDrawTarget) {
         fDrawTarget->setDrawState(fSavedState);
         fSavedState->unref();
     }
 }
 void GrDrawTarget::AutoStateRestore::set(GrDrawTarget* target, ASRInit init, const SkMatrix* vm) {
     SkASSERT(NULL == fDrawTarget);
     fDrawTarget = target;
     fSavedState = target->drawState();
     SkASSERT(fSavedState);
     fSavedState->ref();
     if (kReset_ASRInit == init) {
         if (NULL == vm) {
             // calls the default cons
             fTempState.init();
         } else {
             SkNEW_IN_TLAZY(&fTempState, GrDrawState, (*vm));
         }
     } else {
         SkASSERT(kPreserve_ASRInit == init);
         if (NULL == vm) {
             fTempState.set(*fSavedState);
         } else {
             SkNEW_IN_TLAZY(&fTempState, GrDrawState, (*fSavedState, *vm));
         }
     }
     target->setDrawState(fTempState.get());
 }
 bool GrDrawTarget::AutoStateRestore::setIdentity(GrDrawTarget* target, ASRInit init) {
     SkASSERT(NULL == fDrawTarget);
     fDrawTarget = target;
     fSavedState = target->drawState();
     SkASSERT(fSavedState);
     fSavedState->ref();
     if (kReset_ASRInit == init) {
         // calls the default cons
         fTempState.init();
     } else {
         SkASSERT(kPreserve_ASRInit == init);
         // calls the copy cons
         fTempState.set(*fSavedState);
         if (!fTempState.get()->setIdentityViewMatrix()) {
             // let go of any resources held by the temp
             fTempState.get()->reset();
             fDrawTarget = NULL;
             fSavedState->unref();
             fSavedState = NULL;
             return false;
         }
     }
     target->setDrawState(fTempState.get());
     return true;
 }
 ////////////////////////////////////////////////////////////////////////////////
 GrDrawTarget::AutoReleaseGeometry::AutoReleaseGeometry(
                                          GrDrawTarget*  target,
                                          int vertexCount,
                                          int indexCount) {
     fTarget = NULL;
     this->set(target, vertexCount, indexCount);
 }
 GrDrawTarget::AutoReleaseGeometry::AutoReleaseGeometry() {
     fTarget = NULL;
 }
 GrDrawTarget::AutoReleaseGeometry::~AutoReleaseGeometry() {
     this->reset();
 }
 bool GrDrawTarget::AutoReleaseGeometry::set(GrDrawTarget*  target,
                                             int vertexCount,
                                             int indexCount) {
     this->reset();
     fTarget = target;
     bool success = true;
     if (NULL != fTarget) {
         fTarget = target;
         success = target->reserveVertexAndIndexSpace(vertexCount,
                                                      indexCount,
                                                      &fVertices,
                                                      &fIndices);
         if (!success) {
             fTarget = NULL;
             this->reset();
         }
     }
     SkASSERT(success == (NULL != fTarget));
     return success;
 }
 void GrDrawTarget::AutoReleaseGeometry::reset() {
     if (NULL != fTarget) {
         if (NULL != fVertices) {
             fTarget->resetVertexSource();
         }
         if (NULL != fIndices) {
             fTarget->resetIndexSource();
         }
         fTarget = NULL;
     }
     fVertices = NULL;
     fIndices = NULL;
 }
 GrDrawTarget::AutoClipRestore::AutoClipRestore(GrDrawTarget* target, const SkIRect& newClip) {
     fTarget = target;
     fClip = fTarget->getClip();
     fStack.init();
     fStack.get()->clipDevRect(newClip, SkRegion::kReplace_Op);
     fReplacementClip.fClipStack = fStack.get();
     target->setClip(&fReplacementClip);
 }
 namespace {
 // returns true if the read/written rect intersects the src/dst and false if not.
 bool clip_srcrect_and_dstpoint(const GrSurface* dst,
                                const GrSurface* src,
                                const SkIRect& srcRect,
                                const SkIPoint& dstPoint,
                                SkIRect* clippedSrcRect,
                                SkIPoint* clippedDstPoint) {
     *clippedSrcRect = srcRect;
     *clippedDstPoint = dstPoint;
     // clip the left edge to src and dst bounds, adjusting dstPoint if necessary
     if (clippedSrcRect->fLeft < 0) {
         clippedDstPoint->fX -= clippedSrcRect->fLeft;
         clippedSrcRect->fLeft = 0;
     }
     if (clippedDstPoint->fX < 0) {
         clippedSrcRect->fLeft -= clippedDstPoint->fX;
         clippedDstPoint->fX = 0;
     }
     // clip the top edge to src and dst bounds, adjusting dstPoint if necessary
     if (clippedSrcRect->fTop < 0) {
         clippedDstPoint->fY -= clippedSrcRect->fTop;
         clippedSrcRect->fTop = 0;
     }
     if (clippedDstPoint->fY < 0) {
         clippedSrcRect->fTop -= clippedDstPoint->fY;
         clippedDstPoint->fY = 0;
     }
     // clip the right edge to the src and dst bounds.
     if (clippedSrcRect->fRight > src->width()) {
         clippedSrcRect->fRight = src->width();
     }
     if (clippedDstPoint->fX + clippedSrcRect->width() > dst->width()) {
         clippedSrcRect->fRight = clippedSrcRect->fLeft + dst->width() - clippedDstPoint->fX;
     }
     // clip the bottom edge to the src and dst bounds.
     if (clippedSrcRect->fBottom > src->height()) {
         clippedSrcRect->fBottom = src->height();
     }
     if (clippedDstPoint->fY + clippedSrcRect->height() > dst->height()) {
         clippedSrcRect->fBottom = clippedSrcRect->fTop + dst->height() - clippedDstPoint->fY;
     }
     // The above clipping steps may have inverted the rect if it didn't intersect either the src or
     // dst bounds.
     return !clippedSrcRect->isEmpty();
 }
 }
 bool GrDrawTarget::copySurface(GrSurface* dst,
                                GrSurface* src,
                                const SkIRect& srcRect,
                                const SkIPoint& dstPoint) {
     SkASSERT(NULL != dst);
     SkASSERT(NULL != src);
     SkIRect clippedSrcRect;
     SkIPoint clippedDstPoint;
     // If the rect is outside the src or dst then we've already succeeded.
     if (!clip_srcrect_and_dstpoint(dst,
                                    src,
                                    srcRect,
                                    dstPoint,
                                    &clippedSrcRect,
                                    &clippedDstPoint)) {
         SkASSERT(this->canCopySurface(dst, src, srcRect, dstPoint));
         return true;
     }
     bool result = this->onCopySurface(dst, src, clippedSrcRect, clippedDstPoint);
     SkASSERT(result == this->canCopySurface(dst, src, clippedSrcRect, clippedDstPoint));
     return result;
 }
 bool GrDrawTarget::canCopySurface(GrSurface* dst,
                                   GrSurface* src,
                                   const SkIRect& srcRect,
                                   const SkIPoint& dstPoint) {
     SkASSERT(NULL != dst);
     SkASSERT(NULL != src);
     SkIRect clippedSrcRect;
     SkIPoint clippedDstPoint;
     // If the rect is outside the src or dst then we're guaranteed success
     if (!clip_srcrect_and_dstpoint(dst,
                                    src,
                                    srcRect,
                                    dstPoint,
                                    &clippedSrcRect,
                                    &clippedDstPoint)) {
         return true;
     }
     return this->onCanCopySurface(dst, src, clippedSrcRect, clippedDstPoint);
 }
 bool GrDrawTarget::onCanCopySurface(GrSurface* dst,
                                     GrSurface* src,
                                     const SkIRect& srcRect,
                                     const SkIPoint& dstPoint) {
     // Check that the read/write rects are contained within the src/dst bounds.
     SkASSERT(!srcRect.isEmpty());
     SkASSERT(SkIRect::MakeWH(src->width(), src->height()).contains(srcRect));
     SkASSERT(dstPoint.fX >= 0 && dstPoint.fY >= 0);
     SkASSERT(dstPoint.fX + srcRect.width() <= dst->width() &&
              dstPoint.fY + srcRect.height() <= dst->height());
     return !dst->isSameAs(src) && NULL != dst->asRenderTarget() && NULL != src->asTexture();
 }
 bool GrDrawTarget::onCopySurface(GrSurface* dst,
                                  GrSurface* src,
                                  const SkIRect& srcRect,
                                  const SkIPoint& dstPoint) {
     if (!GrDrawTarget::onCanCopySurface(dst, src, srcRect, dstPoint)) {
         return false;
     }
     GrRenderTarget* rt = dst->asRenderTarget();
     GrTexture* tex = src->asTexture();
     GrDrawTarget::AutoStateRestore asr(this, kReset_ASRInit);
     this->drawState()->setRenderTarget(rt);
     SkMatrix matrix;
     matrix.setTranslate(SkIntToScalar(srcRect.fLeft - dstPoint.fX),
                         SkIntToScalar(srcRect.fTop - dstPoint.fY));
     matrix.postIDiv(tex->width(), tex->height());
     this->drawState()->addColorTextureEffect(tex, matrix);
     SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX,
                                         dstPoint.fY,
                                         srcRect.width(),
                                         srcRect.height());
     this->drawSimpleRect(dstRect);
     return true;
 }
 void GrDrawTarget::initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc) {
     // Make the dst of the copy be a render target because the default copySurface draws to the dst.
     desc->fOrigin = kDefault_GrSurfaceOrigin;
     desc->fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
     desc->fConfig = src->config();
 }
 ///////////////////////////////////////////////////////////////////////////////
 void GrDrawTargetCaps::reset() {
     f8BitPaletteSupport = false;
     fMipMapSupport = false;
     fNPOTTextureTileSupport = false;
     fTwoSidedStencilSupport = false;
     fStencilWrapOpsSupport = false;
     fHWAALineSupport = false;
     fShaderDerivativeSupport = false;
     fGeometryShaderSupport = false;
     fDualSourceBlendingSupport = false;
     fBufferLockSupport = false;
     fPathRenderingSupport = false;
     fDstReadInShaderSupport = false;
     fReuseScratchTextures = true;
     fGpuTracingSupport = false;
     fMaxRenderTargetSize = 0;
     fMaxTextureSize = 0;
     fMaxSampleCount = 0;
     memset(fConfigRenderSupport, 0, sizeof(fConfigRenderSupport));
 }
 GrDrawTargetCaps& GrDrawTargetCaps::operator=(const GrDrawTargetCaps& other) {
     f8BitPaletteSupport = other.f8BitPaletteSupport;
     fMipMapSupport = other.fMipMapSupport;
     fNPOTTextureTileSupport = other.fNPOTTextureTileSupport;
     fTwoSidedStencilSupport = other.fTwoSidedStencilSupport;
     fStencilWrapOpsSupport = other.fStencilWrapOpsSupport;
     fHWAALineSupport = other.fHWAALineSupport;
     fShaderDerivativeSupport = other.fShaderDerivativeSupport;
     fGeometryShaderSupport = other.fGeometryShaderSupport;
     fDualSourceBlendingSupport = other.fDualSourceBlendingSupport;
     fBufferLockSupport = other.fBufferLockSupport;
     fPathRenderingSupport = other.fPathRenderingSupport;
     fDstReadInShaderSupport = other.fDstReadInShaderSupport;
     fReuseScratchTextures = other.fReuseScratchTextures;
     fGpuTracingSupport = other.fGpuTracingSupport;
     fMaxRenderTargetSize = other.fMaxRenderTargetSize;
     fMaxTextureSize = other.fMaxTextureSize;
     fMaxSampleCount = other.fMaxSampleCount;
     memcpy(fConfigRenderSupport, other.fConfigRenderSupport, sizeof(fConfigRenderSupport));
     return *this;
 }
 SkString GrDrawTargetCaps::dump() const {
     SkString r;
     static const char* gNY[] = {"NO", "YES"};
     r.appendf("8 Bit Palette Support       : %s\n", gNY[f8BitPaletteSupport]);
     r.appendf("MIP Map Support             : %s\n", gNY[fMipMapSupport]);
     r.appendf("NPOT Texture Tile Support   : %s\n", gNY[fNPOTTextureTileSupport]);
     r.appendf("Two Sided Stencil Support   : %s\n", gNY[fTwoSidedStencilSupport]);
     r.appendf("Stencil Wrap Ops  Support   : %s\n", gNY[fStencilWrapOpsSupport]);
     r.appendf("HW AA Lines Support         : %s\n", gNY[fHWAALineSupport]);
     r.appendf("Shader Derivative Support   : %s\n", gNY[fShaderDerivativeSupport]);
     r.appendf("Geometry Shader Support     : %s\n", gNY[fGeometryShaderSupport]);
     r.appendf("Dual Source Blending Support: %s\n", gNY[fDualSourceBlendingSupport]);
     r.appendf("Buffer Lock Support         : %s\n", gNY[fBufferLockSupport]);
     r.appendf("Path Rendering Support      : %s\n", gNY[fPathRenderingSupport]);
     r.appendf("Dst Read In Shader Support  : %s\n", gNY[fDstReadInShaderSupport]);
     r.appendf("Reuse Scratch Textures      : %s\n", gNY[fReuseScratchTextures]);
     r.appendf("Gpu Tracing Support         : %s\n", gNY[fGpuTracingSupport]);
     r.appendf("Max Texture Size            : %d\n", fMaxTextureSize);
     r.appendf("Max Render Target Size      : %d\n", fMaxRenderTargetSize);
     r.appendf("Max Sample Count            : %d\n", fMaxSampleCount);
     static const char* kConfigNames[] = {
         "Unknown",  // kUnknown_GrPixelConfig
         "Alpha8",   // kAlpha_8_GrPixelConfig,
         "Index8",   // kIndex_8_GrPixelConfig,
         "RGB565",   // kRGB_565_GrPixelConfig,
         "RGBA444",  // kRGBA_4444_GrPixelConfig,
         "RGBA8888", // kRGBA_8888_GrPixelConfig,
         "BGRA8888", // kBGRA_8888_GrPixelConfig,
     };
     GR_STATIC_ASSERT(0 == kUnknown_GrPixelConfig);
     GR_STATIC_ASSERT(1 == kAlpha_8_GrPixelConfig);
     GR_STATIC_ASSERT(2 == kIndex_8_GrPixelConfig);
     GR_STATIC_ASSERT(3 == kRGB_565_GrPixelConfig);
     GR_STATIC_ASSERT(4 == kRGBA_4444_GrPixelConfig);
     GR_STATIC_ASSERT(5 == kRGBA_8888_GrPixelConfig);
     GR_STATIC_ASSERT(6 == kBGRA_8888_GrPixelConfig);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kConfigNames) == kGrPixelConfigCnt);
     SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][0]);
     SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][1]);
     for (size_t i = 0; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
         if (i != kUnknown_GrPixelConfig) {
             r.appendf("%s is renderable: %s, with MSAA: %s\n",
                      kConfigNames[i],
                      gNY[fConfigRenderSupport[i][0]],
                      gNY[fConfigRenderSupport[i][1]]);
         }
     }
     return r;
 }

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gfx/skia/trunk/src/gpu/GrDrawTarget.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/GrDrawTarget.cpp