Caolán McNamara
11 years ago
parent
0bd0c44201
commit
0459ed3143
@ -0,0 +1,71 @@
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From f31ac2405bbd0755fb14daa6cb84d7bb7d84c492 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
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Date: Thu, 17 Apr 2014 11:56:17 +0100
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Subject: [PATCH] Resolves: rhbz#1086714 overlarge pixmap
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Change-Id: I015308406a43e6b039059a5e35316d59745d0a48
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---
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canvas/source/cairo/cairo_canvasbitmap.cxx | 2 +-
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canvas/source/cairo/cairo_xlib_cairo.cxx | 7 ++++---
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vcl/unx/x11/xlimits.cxx | 11 +++++------
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3 files changed, 10 insertions(+), 10 deletions(-)
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diff --git a/canvas/source/cairo/cairo_canvasbitmap.cxx b/canvas/source/cairo/cairo_canvasbitmap.cxx
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index 32c9167..eae1319 100644
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--- a/canvas/source/cairo/cairo_canvasbitmap.cxx
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+++ b/canvas/source/cairo/cairo_canvasbitmap.cxx
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@@ -159,7 +159,7 @@ namespace cairocanvas
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pPixels = cairo_image_surface_create( CAIRO_FORMAT_ARGB32,
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aSize.Width(), aSize.Height() );
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cairo_t *pCairo = cairo_create( pPixels );
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- if( !pPixels || !pCairo )
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+ if( !pPixels || !pCairo || cairo_status(pCairo) != CAIRO_STATUS_SUCCESS )
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break;
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// suck ourselves from the X server to this buffer so then we can fiddle with
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diff --git a/canvas/source/cairo/cairo_xlib_cairo.cxx b/canvas/source/cairo/cairo_xlib_cairo.cxx
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index f52a8e7..e5bb189 100644
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--- a/canvas/source/cairo/cairo_xlib_cairo.cxx
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+++ b/canvas/source/cairo/cairo_xlib_cairo.cxx
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@@ -36,11 +36,12 @@ namespace
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Pixmap limitXCreatePixmap(Display *display, Drawable d, unsigned int width, unsigned int height, unsigned int depth)
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{
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// The X protocol request CreatePixmap puts an upper bound
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- // of 16 bit to the size.
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+ // of 16 bit to the size. And in practice some drivers
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+ // fall over with values close to the max.
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- // see, e.g. moz#424333, fdo#48961
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+ // see, e.g. moz#424333, fdo#48961, rhbz#1086714
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// we've a duplicate of this in vcl :-(
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- if (width > SAL_MAX_INT16 || height > SAL_MAX_INT16)
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+ if (width > SAL_MAX_INT16-10 || height > SAL_MAX_INT16-10)
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{
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SAL_WARN("canvas", "overlarge pixmap: " << width << " x " << height);
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return None;
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diff --git a/vcl/unx/x11/xlimits.cxx b/vcl/unx/x11/xlimits.cxx
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index 2d3606d..b8509cb 100644
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--- a/vcl/unx/x11/xlimits.cxx
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+++ b/vcl/unx/x11/xlimits.cxx
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@@ -13,13 +13,12 @@
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Pixmap limitXCreatePixmap(Display *display, Drawable d, unsigned int width, unsigned int height, unsigned int depth)
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{
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// The X protocol request CreatePixmap puts an upper bound
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- // of 16 bit to the size. Beyond that there may be implementation
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- // limits of the Xserver; which we should catch by a failed XCreatePixmap
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- // call. However extra large values should be caught here since we'd run into
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- // 16 bit truncation here without noticing.
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+ // of 16 bit to the size. And in practice some drivers
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+ // fall over with values close to the max.
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- // see, e.g. moz#424333
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- if (width > SAL_MAX_INT16 || height > SAL_MAX_INT16)
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+ // see, e.g. moz#424333, fdo#48961, rhbz#1086714
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+ // we've a duplicate of this in canvas :-(
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+ if (width > SAL_MAX_INT16-10 || height > SAL_MAX_INT16-10)
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{
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SAL_WARN("vcl", "overlarge pixmap: " << width << " x " << height);
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return None;
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--
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1.9.0
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