gfx/cairo/quartz-get-image-performance.patch

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 # HG changeset patch
michael@0 2 # User Matt Woodrow <mwoodrow@mozilla.com>
michael@0 3 # Date 1314162877 -43200
michael@0 4 # Node ID 87458c4670dcd16be5a5715d741ee2ca4cf18d0f
michael@0 5 # Parent 95eb700a64591cda694c284a9f8ad08c11e3dd97
michael@0 6 Bug 675837 - Only flush Quartz surfaces on the success paths during cairo_quartz_get_image. r=roc
michael@0 7
michael@0 8 diff --git a/gfx/cairo/cairo/src/cairo-quartz-surface.c b/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 9 --- a/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 10 +++ b/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 11 @@ -1909,30 +1909,30 @@ _cairo_quartz_get_image (cairo_quartz_su
michael@0 12 unsigned char *imageData;
michael@0 13 cairo_image_surface_t *isurf;
michael@0 14
michael@0 15 if (IS_EMPTY(surface)) {
michael@0 16 *image_out = (cairo_image_surface_t*) cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0);
michael@0 17 return CAIRO_STATUS_SUCCESS;
michael@0 18 }
michael@0 19
michael@0 20 - CGContextFlush(surface->cgContext);
michael@0 21 -
michael@0 22 if (surface->imageSurfaceEquiv) {
michael@0 23 + CGContextFlush(surface->cgContext);
michael@0 24 *image_out = (cairo_image_surface_t*) cairo_surface_reference(surface->imageSurfaceEquiv);
michael@0 25 return CAIRO_STATUS_SUCCESS;
michael@0 26 }
michael@0 27
michael@0 28 if (_cairo_quartz_is_cgcontext_bitmap_context(surface->cgContext)) {
michael@0 29 unsigned int stride;
michael@0 30 unsigned int bitinfo;
michael@0 31 unsigned int bpc, bpp;
michael@0 32 CGColorSpaceRef colorspace;
michael@0 33 unsigned int color_comps;
michael@0 34
michael@0 35 + CGContextFlush(surface->cgContext);
michael@0 36 imageData = (unsigned char *) CGBitmapContextGetData(surface->cgContext);
michael@0 37
michael@0 38 #ifdef USE_10_3_WORKAROUNDS
michael@0 39 bitinfo = CGBitmapContextGetAlphaInfo (surface->cgContext);
michael@0 40 #else
michael@0 41 bitinfo = CGBitmapContextGetBitmapInfo (surface->cgContext);
michael@0 42 #endif
michael@0 43 stride = CGBitmapContextGetBytesPerRow (surface->cgContext);

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