The Tor Browser: content/canvas/src/WebGLExtensionVertexArray.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "WebGLContext.h"

     7 #include "WebGLBuffer.h"

     8 #include "WebGLVertexArray.h"

     9 #include "WebGLExtensions.h"

    10 #include "mozilla/dom/WebGLRenderingContextBinding.h"

    11 #include "GLContext.h"

    13 using namespace mozilla;

    15 WebGLExtensionVertexArray::WebGLExtensionVertexArray(WebGLContext* context)

    16   : WebGLExtensionBase(context)

    17 {

    18     MOZ_ASSERT(IsSupported(context), "should not construct WebGLExtensionVertexArray :"

    19                                      "OES_vertex_array_object unsuported.");

    20 }

    22 WebGLExtensionVertexArray::~WebGLExtensionVertexArray()

    23 {

    24 }

    26 already_AddRefed<WebGLVertexArray> WebGLExtensionVertexArray::CreateVertexArrayOES()

    27 {

    28     if (mIsLost) {

    29         mContext->ErrorInvalidOperation("createVertexArrayOES: Extension is lost. Returning NULL.");

    30         return nullptr;

    31     }

    33     return mContext->CreateVertexArray();

    34 }

    36 void WebGLExtensionVertexArray::DeleteVertexArrayOES(WebGLVertexArray* array)

    37 {

    38     if (mIsLost)

    39         return mContext->ErrorInvalidOperation("deleteVertexArrayOES: Extension is lost.");

    41     mContext->DeleteVertexArray(array);

    42 }

    44 bool WebGLExtensionVertexArray::IsVertexArrayOES(WebGLVertexArray* array)

    45 {

    46     if (mIsLost) {

    47         mContext->ErrorInvalidOperation("isVertexArrayOES: Extension is lost. Returning false.");

    48         return false;

    49     }

    51     return mContext->IsVertexArray(array);

    52 }

    54 void WebGLExtensionVertexArray::BindVertexArrayOES(WebGLVertexArray* array)

    55 {

    56     if (mIsLost)

    57         return mContext->ErrorInvalidOperation("bindVertexArrayOES: Extension is lost.");

    59     mContext->BindVertexArray(array);

    60 }

    62 bool WebGLExtensionVertexArray::IsSupported(const WebGLContext* context)

    63 {

    64     gl::GLContext* gl = context->GL();

    66     return gl->IsSupported(gl::GLFeature::vertex_array_object);

    67 }

    69 IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionVertexArray)

The Tor Browser / file revision

content/canvas/src/WebGLExtensionVertexArray.cpp@97036ab72558

content/canvas/src/WebGLExtensionVertexArray.cpp