gfx/thebes/gfxGdkNativeRenderer.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 "gfxGdkNativeRenderer.h"
michael@0 7 #include "gfxContext.h"
michael@0 8 #include "gfxPlatformGtk.h"
michael@0 9
michael@0 10 #ifdef MOZ_X11
michael@0 11 #include <gdk/gdkx.h>
michael@0 12 #include "cairo-xlib.h"
michael@0 13 #include "gfxXlibSurface.h"
michael@0 14
michael@0 15 #if (MOZ_WIDGET_GTK == 2)
michael@0 16 nsresult
michael@0 17 gfxGdkNativeRenderer::DrawWithXlib(cairo_surface_t* surface,
michael@0 18 nsIntPoint offset,
michael@0 19 nsIntRect* clipRects, uint32_t numClipRects)
michael@0 20 {
michael@0 21 GdkDrawable *drawable = gfxPlatformGtk::GetGdkDrawable(surface);
michael@0 22 if (!drawable) {
michael@0 23 int depth = cairo_xlib_surface_get_depth(surface);
michael@0 24 GdkScreen* screen = gdk_colormap_get_screen(mColormap);
michael@0 25 drawable =
michael@0 26 gdk_pixmap_foreign_new_for_screen(screen, cairo_xlib_surface_get_drawable(surface),
michael@0 27 cairo_xlib_surface_get_width(surface),
michael@0 28 cairo_xlib_surface_get_height(surface),
michael@0 29 depth);
michael@0 30 if (!drawable)
michael@0 31 return NS_ERROR_FAILURE;
michael@0 32
michael@0 33 gdk_drawable_set_colormap(drawable, mColormap);
michael@0 34 gfxPlatformGtk::SetGdkDrawable(surface, drawable);
michael@0 35 g_object_unref(drawable); // The drawable now belongs to |surface|.
michael@0 36 }
michael@0 37
michael@0 38 GdkRectangle clipRect;
michael@0 39 if (numClipRects) {
michael@0 40 NS_ASSERTION(numClipRects == 1, "Too many clip rects");
michael@0 41 clipRect.x = clipRects[0].x;
michael@0 42 clipRect.y = clipRects[0].y;
michael@0 43 clipRect.width = clipRects[0].width;
michael@0 44 clipRect.height = clipRects[0].height;
michael@0 45 }
michael@0 46
michael@0 47 return DrawWithGDK(drawable, offset.x, offset.y,
michael@0 48 numClipRects ? &clipRect : nullptr, numClipRects);
michael@0 49 }
michael@0 50
michael@0 51 void
michael@0 52 gfxGdkNativeRenderer::Draw(gfxContext* ctx, nsIntSize size,
michael@0 53 uint32_t flags, GdkColormap* colormap)
michael@0 54 {
michael@0 55 mColormap = colormap;
michael@0 56
michael@0 57 Visual* visual =
michael@0 58 gdk_x11_visual_get_xvisual(gdk_colormap_get_visual(colormap));
michael@0 59 Screen* screen =
michael@0 60 gdk_x11_screen_get_xscreen(gdk_colormap_get_screen(colormap));
michael@0 61
michael@0 62 gfxXlibNativeRenderer::Draw(ctx, size, flags, screen, visual);
michael@0 63 }
michael@0 64
michael@0 65 #else
michael@0 66 // TODO GTK3
michael@0 67 #endif
michael@0 68
michael@0 69 #endif

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