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

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

gfx/skia/trunk/src/gpu/GrGpu.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 "GrGpu.h"
 #include "GrBufferAllocPool.h"
 #include "GrContext.h"
 #include "GrDrawTargetCaps.h"
 #include "GrIndexBuffer.h"
 #include "GrStencilBuffer.h"
 #include "GrVertexBuffer.h"
 // probably makes no sense for this to be less than a page
 static const size_t VERTEX_POOL_VB_SIZE = 1 << 18;
 static const int VERTEX_POOL_VB_COUNT = 4;
 static const size_t INDEX_POOL_IB_SIZE = 1 << 16;
 static const int INDEX_POOL_IB_COUNT = 4;
 ////////////////////////////////////////////////////////////////////////////////
 #define DEBUG_INVAL_BUFFER    0xdeadcafe
 #define DEBUG_INVAL_START_IDX -1
 GrGpu::GrGpu(GrContext* context)
     : GrDrawTarget(context)
     , fResetTimestamp(kExpiredTimestamp+1)
     , fResetBits(kAll_GrBackendState)
     , fVertexPool(NULL)
     , fIndexPool(NULL)
     , fVertexPoolUseCnt(0)
     , fIndexPoolUseCnt(0)
     , fQuadIndexBuffer(NULL) {
     fClipMaskManager.setGpu(this);
     fGeomPoolStateStack.push_back();
 #ifdef SK_DEBUG
     GeometryPoolState& poolState = fGeomPoolStateStack.back();
     poolState.fPoolVertexBuffer = (GrVertexBuffer*)DEBUG_INVAL_BUFFER;
     poolState.fPoolStartVertex = DEBUG_INVAL_START_IDX;
     poolState.fPoolIndexBuffer = (GrIndexBuffer*)DEBUG_INVAL_BUFFER;
     poolState.fPoolStartIndex = DEBUG_INVAL_START_IDX;
 #endif
 }
 GrGpu::~GrGpu() {
     this->releaseResources();
 }
 void GrGpu::abandonResources() {
     fClipMaskManager.releaseResources();
     while (NULL != fResourceList.head()) {
         fResourceList.head()->abandon();
     }
     SkASSERT(NULL == fQuadIndexBuffer || !fQuadIndexBuffer->isValid());
     SkSafeSetNull(fQuadIndexBuffer);
     delete fVertexPool;
     fVertexPool = NULL;
     delete fIndexPool;
     fIndexPool = NULL;
 }
 void GrGpu::releaseResources() {
     fClipMaskManager.releaseResources();
     while (NULL != fResourceList.head()) {
         fResourceList.head()->release();
     }
     SkASSERT(NULL == fQuadIndexBuffer || !fQuadIndexBuffer->isValid());
     SkSafeSetNull(fQuadIndexBuffer);
     delete fVertexPool;
     fVertexPool = NULL;
     delete fIndexPool;
     fIndexPool = NULL;
 }
 void GrGpu::insertResource(GrResource* resource) {
     SkASSERT(NULL != resource);
     SkASSERT(this == resource->getGpu());
     fResourceList.addToHead(resource);
 }
 void GrGpu::removeResource(GrResource* resource) {
     SkASSERT(NULL != resource);
     SkASSERT(this == resource->getGpu());
     fResourceList.remove(resource);
 }
 void GrGpu::unimpl(const char msg[]) {
 #ifdef SK_DEBUG
     GrPrintf("--- GrGpu unimplemented(\"%s\")\n", msg);
 #endif
 }
 ////////////////////////////////////////////////////////////////////////////////
 GrTexture* GrGpu::createTexture(const GrTextureDesc& desc,
                                 const void* srcData, size_t rowBytes) {
     if (kUnknown_GrPixelConfig == desc.fConfig) {
         return NULL;
     }
     if ((desc.fFlags & kRenderTarget_GrTextureFlagBit) &&
         !this->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) {
         return NULL;
     }
     this->handleDirtyContext();
     GrTexture* tex = this->onCreateTexture(desc, srcData, rowBytes);
     if (NULL != tex &&
         (kRenderTarget_GrTextureFlagBit & desc.fFlags) &&
         !(kNoStencil_GrTextureFlagBit & desc.fFlags)) {
         SkASSERT(NULL != tex->asRenderTarget());
         // TODO: defer this and attach dynamically
         if (!this->attachStencilBufferToRenderTarget(tex->asRenderTarget())) {
             tex->unref();
             return NULL;
         }
     }
     return tex;
 }
 bool GrGpu::attachStencilBufferToRenderTarget(GrRenderTarget* rt) {
     SkASSERT(NULL == rt->getStencilBuffer());
     GrStencilBuffer* sb =
         this->getContext()->findStencilBuffer(rt->width(),
                                               rt->height(),
                                               rt->numSamples());
     if (NULL != sb) {
         rt->setStencilBuffer(sb);
         bool attached = this->attachStencilBufferToRenderTarget(sb, rt);
         if (!attached) {
             rt->setStencilBuffer(NULL);
         }
         return attached;
     }
     if (this->createStencilBufferForRenderTarget(rt,
                                                  rt->width(), rt->height())) {
         // Right now we're clearing the stencil buffer here after it is
         // attached to an RT for the first time. When we start matching
         // stencil buffers with smaller color targets this will no longer
         // be correct because it won't be guaranteed to clear the entire
         // sb.
         // We used to clear down in the GL subclass using a special purpose
         // FBO. But iOS doesn't allow a stencil-only FBO. It reports unsupported
         // FBO status.
         GrDrawState::AutoRenderTargetRestore artr(this->drawState(), rt);
         this->clearStencil();
         return true;
     } else {
         return false;
     }
 }
 GrTexture* GrGpu::wrapBackendTexture(const GrBackendTextureDesc& desc) {
     this->handleDirtyContext();
     GrTexture* tex = this->onWrapBackendTexture(desc);
     if (NULL == tex) {
         return NULL;
     }
     // TODO: defer this and attach dynamically
     GrRenderTarget* tgt = tex->asRenderTarget();
     if (NULL != tgt &&
         !this->attachStencilBufferToRenderTarget(tgt)) {
         tex->unref();
         return NULL;
     } else {
         return tex;
     }
 }
 GrRenderTarget* GrGpu::wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc) {
     this->handleDirtyContext();
     return this->onWrapBackendRenderTarget(desc);
 }
 GrVertexBuffer* GrGpu::createVertexBuffer(size_t size, bool dynamic) {
     this->handleDirtyContext();
     return this->onCreateVertexBuffer(size, dynamic);
 }
 GrIndexBuffer* GrGpu::createIndexBuffer(size_t size, bool dynamic) {
     this->handleDirtyContext();
     return this->onCreateIndexBuffer(size, dynamic);
 }
 GrPath* GrGpu::createPath(const SkPath& path, const SkStrokeRec& stroke) {
     SkASSERT(this->caps()->pathRenderingSupport());
     this->handleDirtyContext();
     return this->onCreatePath(path, stroke);
 }
 void GrGpu::clear(const SkIRect* rect,
                   GrColor color,
                   bool canIgnoreRect,
                   GrRenderTarget* renderTarget) {
     GrDrawState::AutoRenderTargetRestore art;
     if (NULL != renderTarget) {
         art.set(this->drawState(), renderTarget);
     }
     if (NULL == this->getDrawState().getRenderTarget()) {
         SkASSERT(0);
         return;
     }
     this->handleDirtyContext();
     this->onClear(rect, color, canIgnoreRect);
 }
 void GrGpu::forceRenderTargetFlush() {
     this->handleDirtyContext();
     this->onForceRenderTargetFlush();
 }
 bool GrGpu::readPixels(GrRenderTarget* target,
                        int left, int top, int width, int height,
                        GrPixelConfig config, void* buffer,
                        size_t rowBytes) {
     this->handleDirtyContext();
     return this->onReadPixels(target, left, top, width, height,
                               config, buffer, rowBytes);
 }
 bool GrGpu::writeTexturePixels(GrTexture* texture,
                                int left, int top, int width, int height,
                                GrPixelConfig config, const void* buffer,
                                size_t rowBytes) {
     this->handleDirtyContext();
     return this->onWriteTexturePixels(texture, left, top, width, height,
                                       config, buffer, rowBytes);
 }
 void GrGpu::resolveRenderTarget(GrRenderTarget* target) {
     SkASSERT(target);
     this->handleDirtyContext();
     this->onResolveRenderTarget(target);
 }
 static const GrStencilSettings& winding_path_stencil_settings() {
     GR_STATIC_CONST_SAME_STENCIL_STRUCT(gSettings,
         kIncClamp_StencilOp,
         kIncClamp_StencilOp,
         kAlwaysIfInClip_StencilFunc,
 xFFFF, 0xFFFF, 0xFFFF);
     return *GR_CONST_STENCIL_SETTINGS_PTR_FROM_STRUCT_PTR(&gSettings);
 }
 static const GrStencilSettings& even_odd_path_stencil_settings() {
     GR_STATIC_CONST_SAME_STENCIL_STRUCT(gSettings,
         kInvert_StencilOp,
         kInvert_StencilOp,
         kAlwaysIfInClip_StencilFunc,
 xFFFF, 0xFFFF, 0xFFFF);
     return *GR_CONST_STENCIL_SETTINGS_PTR_FROM_STRUCT_PTR(&gSettings);
 }
 void GrGpu::getPathStencilSettingsForFillType(SkPath::FillType fill, GrStencilSettings* outStencilSettings) {
     switch (fill) {
         default:
             GrCrash("Unexpected path fill.");
             /* fallthrough */;
         case SkPath::kWinding_FillType:
         case SkPath::kInverseWinding_FillType:
             *outStencilSettings = winding_path_stencil_settings();
             break;
         case SkPath::kEvenOdd_FillType:
         case SkPath::kInverseEvenOdd_FillType:
             *outStencilSettings = even_odd_path_stencil_settings();
             break;
     }
     fClipMaskManager.adjustPathStencilParams(outStencilSettings);
 }
 ////////////////////////////////////////////////////////////////////////////////
 static const int MAX_QUADS = 1 << 12; // max possible: (1 << 14) - 1;
 GR_STATIC_ASSERT(4 * MAX_QUADS <= 65535);
 static inline void fill_indices(uint16_t* indices, int quadCount) {
     for (int i = 0; i < quadCount; ++i) {
         indices[6 * i + 0] = 4 * i + 0;
         indices[6 * i + 1] = 4 * i + 1;
         indices[6 * i + 2] = 4 * i + 2;
         indices[6 * i + 3] = 4 * i + 0;
         indices[6 * i + 4] = 4 * i + 2;
         indices[6 * i + 5] = 4 * i + 3;
     }
 }
 const GrIndexBuffer* GrGpu::getQuadIndexBuffer() const {
     if (NULL == fQuadIndexBuffer) {
         static const int SIZE = sizeof(uint16_t) * 6 * MAX_QUADS;
         GrGpu* me = const_cast<GrGpu*>(this);
         fQuadIndexBuffer = me->createIndexBuffer(SIZE, false);
         if (NULL != fQuadIndexBuffer) {
             uint16_t* indices = (uint16_t*)fQuadIndexBuffer->lock();
             if (NULL != indices) {
                 fill_indices(indices, MAX_QUADS);
                 fQuadIndexBuffer->unlock();
             } else {
                 indices = (uint16_t*)sk_malloc_throw(SIZE);
                 fill_indices(indices, MAX_QUADS);
                 if (!fQuadIndexBuffer->updateData(indices, SIZE)) {
                     fQuadIndexBuffer->unref();
                     fQuadIndexBuffer = NULL;
                     GrCrash("Can't get indices into buffer!");
                 }
                 sk_free(indices);
             }
         }
     }
     return fQuadIndexBuffer;
 }
 ////////////////////////////////////////////////////////////////////////////////
 bool GrGpu::setupClipAndFlushState(DrawType type, const GrDeviceCoordTexture* dstCopy,
                                    GrDrawState::AutoRestoreEffects* are,
                                    const SkRect* devBounds) {
     if (!fClipMaskManager.setupClipping(this->getClip(), are, devBounds)) {
         return false;
     }
     if (!this->flushGraphicsState(type, dstCopy)) {
         return false;
     }
     return true;
 }
 ////////////////////////////////////////////////////////////////////////////////
 void GrGpu::geometrySourceWillPush() {
     const GeometrySrcState& geoSrc = this->getGeomSrc();
     if (kArray_GeometrySrcType == geoSrc.fVertexSrc ||
         kReserved_GeometrySrcType == geoSrc.fVertexSrc) {
         this->finalizeReservedVertices();
     }
     if (kArray_GeometrySrcType == geoSrc.fIndexSrc ||
         kReserved_GeometrySrcType == geoSrc.fIndexSrc) {
         this->finalizeReservedIndices();
     }
     GeometryPoolState& newState = fGeomPoolStateStack.push_back();
 #ifdef SK_DEBUG
     newState.fPoolVertexBuffer = (GrVertexBuffer*)DEBUG_INVAL_BUFFER;
     newState.fPoolStartVertex = DEBUG_INVAL_START_IDX;
     newState.fPoolIndexBuffer = (GrIndexBuffer*)DEBUG_INVAL_BUFFER;
     newState.fPoolStartIndex = DEBUG_INVAL_START_IDX;
 #else
     (void) newState; // silence compiler warning
 #endif
 }
 void GrGpu::geometrySourceWillPop(const GeometrySrcState& restoredState) {
     // if popping last entry then pops are unbalanced with pushes
     SkASSERT(fGeomPoolStateStack.count() > 1);
     fGeomPoolStateStack.pop_back();
 }
 void GrGpu::onDraw(const DrawInfo& info) {
     this->handleDirtyContext();
     GrDrawState::AutoRestoreEffects are;
     if (!this->setupClipAndFlushState(PrimTypeToDrawType(info.primitiveType()),
                                       info.getDstCopy(), &are, info.getDevBounds())) {
         return;
     }
     this->onGpuDraw(info);
 }
 void GrGpu::onStencilPath(const GrPath* path, SkPath::FillType fill) {
     this->handleDirtyContext();
     GrDrawState::AutoRestoreEffects are;
     if (!this->setupClipAndFlushState(kStencilPath_DrawType, NULL, &are, NULL)) {
         return;
     }
     this->onGpuStencilPath(path, fill);
 }
 void GrGpu::onDrawPath(const GrPath* path, SkPath::FillType fill,
                        const GrDeviceCoordTexture* dstCopy) {
     this->handleDirtyContext();
     drawState()->setDefaultVertexAttribs();
     GrDrawState::AutoRestoreEffects are;
     if (!this->setupClipAndFlushState(kDrawPath_DrawType, dstCopy, &are, NULL)) {
         return;
     }
     this->onGpuDrawPath(path, fill);
 }
 void GrGpu::finalizeReservedVertices() {
     SkASSERT(NULL != fVertexPool);
     fVertexPool->unlock();
 }
 void GrGpu::finalizeReservedIndices() {
     SkASSERT(NULL != fIndexPool);
     fIndexPool->unlock();
 }
 void GrGpu::prepareVertexPool() {
     if (NULL == fVertexPool) {
         SkASSERT(0 == fVertexPoolUseCnt);
         fVertexPool = SkNEW_ARGS(GrVertexBufferAllocPool, (this, true,
                                                   VERTEX_POOL_VB_SIZE,
                                                   VERTEX_POOL_VB_COUNT));
         fVertexPool->releaseGpuRef();
     } else if (!fVertexPoolUseCnt) {
         // the client doesn't have valid data in the pool
         fVertexPool->reset();
     }
 }
 void GrGpu::prepareIndexPool() {
     if (NULL == fIndexPool) {
         SkASSERT(0 == fIndexPoolUseCnt);
         fIndexPool = SkNEW_ARGS(GrIndexBufferAllocPool, (this, true,
                                                 INDEX_POOL_IB_SIZE,
                                                 INDEX_POOL_IB_COUNT));
         fIndexPool->releaseGpuRef();
     } else if (!fIndexPoolUseCnt) {
         // the client doesn't have valid data in the pool
         fIndexPool->reset();
     }
 }
 bool GrGpu::onReserveVertexSpace(size_t vertexSize,
                                  int vertexCount,
                                  void** vertices) {
     GeometryPoolState& geomPoolState = fGeomPoolStateStack.back();
     SkASSERT(vertexCount > 0);
     SkASSERT(NULL != vertices);
     this->prepareVertexPool();
     *vertices = fVertexPool->makeSpace(vertexSize,
                                        vertexCount,
                                        &geomPoolState.fPoolVertexBuffer,
                                        &geomPoolState.fPoolStartVertex);
     if (NULL == *vertices) {
         return false;
     }
     ++fVertexPoolUseCnt;
     return true;
 }
 bool GrGpu::onReserveIndexSpace(int indexCount, void** indices) {
     GeometryPoolState& geomPoolState = fGeomPoolStateStack.back();
     SkASSERT(indexCount > 0);
     SkASSERT(NULL != indices);
     this->prepareIndexPool();
     *indices = fIndexPool->makeSpace(indexCount,
                                      &geomPoolState.fPoolIndexBuffer,
                                      &geomPoolState.fPoolStartIndex);
     if (NULL == *indices) {
         return false;
     }
     ++fIndexPoolUseCnt;
     return true;
 }
 void GrGpu::releaseReservedVertexSpace() {
     const GeometrySrcState& geoSrc = this->getGeomSrc();
     SkASSERT(kReserved_GeometrySrcType == geoSrc.fVertexSrc);
     size_t bytes = geoSrc.fVertexCount * geoSrc.fVertexSize;
     fVertexPool->putBack(bytes);
     --fVertexPoolUseCnt;
 }
 void GrGpu::releaseReservedIndexSpace() {
     const GeometrySrcState& geoSrc = this->getGeomSrc();
     SkASSERT(kReserved_GeometrySrcType == geoSrc.fIndexSrc);
     size_t bytes = geoSrc.fIndexCount * sizeof(uint16_t);
     fIndexPool->putBack(bytes);
     --fIndexPoolUseCnt;
 }
 void GrGpu::onSetVertexSourceToArray(const void* vertexArray, int vertexCount) {
     this->prepareVertexPool();
     GeometryPoolState& geomPoolState = fGeomPoolStateStack.back();
 #ifdef SK_DEBUG
     bool success =
 #endif
     fVertexPool->appendVertices(this->getVertexSize(),
                                 vertexCount,
                                 vertexArray,
                                 &geomPoolState.fPoolVertexBuffer,
                                 &geomPoolState.fPoolStartVertex);
     ++fVertexPoolUseCnt;
     GR_DEBUGASSERT(success);
 }
 void GrGpu::onSetIndexSourceToArray(const void* indexArray, int indexCount) {
     this->prepareIndexPool();
     GeometryPoolState& geomPoolState = fGeomPoolStateStack.back();
 #ifdef SK_DEBUG
     bool success =
 #endif
     fIndexPool->appendIndices(indexCount,
                               indexArray,
                               &geomPoolState.fPoolIndexBuffer,
                               &geomPoolState.fPoolStartIndex);
     ++fIndexPoolUseCnt;
     GR_DEBUGASSERT(success);
 }
 void GrGpu::releaseVertexArray() {
     // if vertex source was array, we stowed data in the pool
     const GeometrySrcState& geoSrc = this->getGeomSrc();
     SkASSERT(kArray_GeometrySrcType == geoSrc.fVertexSrc);
     size_t bytes = geoSrc.fVertexCount * geoSrc.fVertexSize;
     fVertexPool->putBack(bytes);
     --fVertexPoolUseCnt;
 }
 void GrGpu::releaseIndexArray() {
     // if index source was array, we stowed data in the pool
     const GeometrySrcState& geoSrc = this->getGeomSrc();
     SkASSERT(kArray_GeometrySrcType == geoSrc.fIndexSrc);
     size_t bytes = geoSrc.fIndexCount * sizeof(uint16_t);
     fIndexPool->putBack(bytes);
     --fIndexPoolUseCnt;
 }

The Tor Browser / annotate

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

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