gfx/thebes/gfxQtNativeRenderer.cpp@97036ab72558 (annotated)
gfx/thebes/gfxQtNativeRenderer.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
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.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "gfxQtNativeRenderer.h" |
| michael@0 | 7 | #include "gfxContext.h" |
| michael@0 | 8 | #include "gfxXlibSurface.h" |
| michael@0 | 9 | |
| michael@0 | 10 | nsresult |
| michael@0 | 11 | gfxQtNativeRenderer::Draw(gfxContext* ctx, nsIntSize size, |
| michael@0 | 12 | uint32_t flags, Screen* screen, Visual* visual) |
| michael@0 | 13 | { |
| michael@0 | 14 | Display *dpy = DisplayOfScreen(screen); |
| michael@0 | 15 | bool isOpaque = (flags & DRAW_IS_OPAQUE) ? true : false; |
| michael@0 | 16 | int screenNumber = screen - ScreenOfDisplay(dpy, 0); |
| michael@0 | 17 | |
| michael@0 | 18 | if (!isOpaque) { |
| michael@0 | 19 | int depth = 32; |
| michael@0 | 20 | XVisualInfo vinfo; |
| michael@0 | 21 | int foundVisual = XMatchVisualInfo(dpy, screenNumber, |
| michael@0 | 22 | depth, TrueColor, |
| michael@0 | 23 | &vinfo); |
| michael@0 | 24 | if (!foundVisual) |
| michael@0 | 25 | return NS_ERROR_FAILURE; |
| michael@0 | 26 | |
| michael@0 | 27 | visual = vinfo.visual; |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | nsRefPtr<gfxXlibSurface> xsurf = |
| michael@0 | 31 | gfxXlibSurface::Create(screen, visual, |
| michael@0 | 32 | gfxIntSize(size.width, size.height)); |
| michael@0 | 33 | |
| michael@0 | 34 | if (!isOpaque) { |
| michael@0 | 35 | nsRefPtr<gfxContext> tempCtx = new gfxContext(xsurf); |
| michael@0 | 36 | tempCtx->SetOperator(gfxContext::OPERATOR_CLEAR); |
| michael@0 | 37 | tempCtx->Paint(); |
| michael@0 | 38 | } |
| michael@0 | 39 | |
| michael@0 | 40 | nsresult rv = DrawWithXlib(xsurf->CairoSurface(), nsIntPoint(0, 0), nullptr, 0); |
| michael@0 | 41 | |
| michael@0 | 42 | if (NS_FAILED(rv)) |
| michael@0 | 43 | return rv; |
| michael@0 | 44 | |
| michael@0 | 45 | ctx->SetSource(xsurf); |
| michael@0 | 46 | ctx->Paint(); |
| michael@0 | 47 | |
| michael@0 | 48 | return rv; |
| michael@0 | 49 | } |
