gfx/cairo/quartz-mask-non-OVER.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 From: Robert O'Callahan <robert@ocallahan.org>
michael@0 2 Bug 579985. Using CGContextSetAlpha to implement mask alpha doesn't work for some operators. r=jrmuizel,a=blocking
michael@0 3
michael@0 4 diff --git a/gfx/cairo/cairo/src/cairo-quartz-surface.c b/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 5 --- a/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 6 +++ b/gfx/cairo/cairo/src/cairo-quartz-surface.c
michael@0 7 @@ -2734,17 +2734,19 @@ _cairo_quartz_surface_mask (void *abstra
michael@0 8
michael@0 9 if (IS_EMPTY(surface))
michael@0 10 return CAIRO_STATUS_SUCCESS;
michael@0 11
michael@0 12 rv = _cairo_surface_clipper_set_clip (&surface->clipper, clip);
michael@0 13 if (unlikely (rv))
michael@0 14 return rv;
michael@0 15
michael@0 16 - if (mask->type == CAIRO_PATTERN_TYPE_SOLID) {
michael@0 17 + /* Using CGContextSetAlpha to implement mask alpha doesn't work for all operators. */
michael@0 18 + if (mask->type == CAIRO_PATTERN_TYPE_SOLID &&
michael@0 19 + op == CAIRO_OPERATOR_OVER) {
michael@0 20 /* This is easy; we just need to paint with the alpha. */
michael@0 21 cairo_solid_pattern_t *solid_mask = (cairo_solid_pattern_t *) mask;
michael@0 22
michael@0 23 CGContextSetAlpha (surface->cgContext, solid_mask->color.alpha);
michael@0 24 rv = _cairo_quartz_surface_paint (surface, op, source, clip);
michael@0 25 CGContextSetAlpha (surface->cgContext, 1.0);
michael@0 26
michael@0 27 return rv;
michael@0 28 diff --git a/layout/reftests/bugs/579985-1-ref.html b/layout/reftests/bugs/579985-1-ref.html
michael@0 29 new file mode 100644
michael@0 30 --- /dev/null
michael@0 31 +++ b/layout/reftests/bugs/579985-1-ref.html
michael@0 32 @@ -0,0 +1,6 @@
michael@0 33 +<!DOCTYPE HTML>
michael@0 34 +<html>
michael@0 35 +<body>
michael@0 36 +<div style="width:100px; height:100px; background:blue; opacity:0.5;">Hello</div>
michael@0 37 +</body>
michael@0 38 +</html>
michael@0 39 diff --git a/layout/reftests/bugs/579985-1.html b/layout/reftests/bugs/579985-1.html
michael@0 40 new file mode 100644
michael@0 41 --- /dev/null
michael@0 42 +++ b/layout/reftests/bugs/579985-1.html
michael@0 43 @@ -0,0 +1,16 @@
michael@0 44 +<!DOCTYPE HTML>
michael@0 45 +<html class="reftest-wait">
michael@0 46 +<head>
michael@0 47 +<script>
michael@0 48 +function doTest() {
michael@0 49 + var d = document.getElementById("d");
michael@0 50 + d.style.opacity = 0.75;
michael@0 51 + document.documentElement.removeAttribute("class");
michael@0 52 +}
michael@0 53 +window.addEventListener("MozReftestInvalidate", doTest, false);
michael@0 54 +</script>
michael@0 55 +</head>
michael@0 56 +<body>
michael@0 57 +<div id="d" style="width:100px; height:100px; background:blue;">Hello</div>
michael@0 58 +</body>
michael@0 59 +</html>
michael@0 60 diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
michael@0 61 --- a/layout/reftests/bugs/reftest.list
michael@0 62 +++ b/layout/reftests/bugs/reftest.list
michael@0 63 @@ -1499,16 +1499,17 @@ random-if(layersGPUAccelerated) == 56499
michael@0 64 == 571347-3.html 571347-3-ref.html
michael@0 65 == 572598-1.html 572598-ref.html
michael@0 66 == 574898-1.html 574898-ref.html
michael@0 67 == 579655-1.html 579655-1-ref.html
michael@0 68 == 577838-1.html 577838-1-ref.html
michael@0 69 == 577838-2.html 577838-2-ref.html
michael@0 70 random-if(layersGPUAccelerated) == 579323-1.html 579323-1-ref.html
michael@0 71 == 579349-1.html 579349-1-ref.html
michael@0 72 +== 579985-1.html 579985-1-ref.html
michael@0 73 == 580160-1.html 580160-1-ref.html
michael@0 74 HTTP(..) == 580863-1.html 580863-1-ref.html
michael@0 75 random-if(layersGPUAccelerated) == 581317-1.html 581317-1-ref.html
michael@0 76 == 581579-1.html 581579-1-ref.html
michael@0 77 == 582037-1a.html 582037-1-ref.html
michael@0 78 == 582037-1b.html 582037-1-ref.html
michael@0 79 == 582037-2a.html 582037-2-ref.html
michael@0 80 == 582037-2b.html 582037-2-ref.html

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