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Blame SOURCES/0001-tdf-106577-cairo_mask-pattern-affects-more-surface-t.patch

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From ec864247bc40d92e32e3b0f9916d3e39974c9116 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: Mon, 20 Mar 2017 15:08:01 +0000
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Subject: [PATCH] tdf#106577 cairo_mask pattern affects more surface than
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 expected
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Change-Id: I7f967c401f7b84fd696fa4cf8a944f7a5730917c
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---
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 vcl/headless/svpgdi.cxx | 15 ++++++++++++++-
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 1 file changed, 14 insertions(+), 1 deletion(-)
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diff --git a/vcl/headless/svpgdi.cxx b/vcl/headless/svpgdi.cxx
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index 91b6f86e87cb..925a5adecd55 100644
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--- a/vcl/headless/svpgdi.cxx
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+++ b/vcl/headless/svpgdi.cxx
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@@ -1201,8 +1201,21 @@ void SvpSalGraphics::invert(const basegfx::B2DPolygon &rPoly, SalInvert nFlags)
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         if (nFlags & SalInvert::N50)
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         {
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             cairo_pattern_t *pattern = create_stipple();
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-            cairo_mask(cr, pattern);
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+            cairo_surface_t* surface = cairo_surface_create_similar(m_pSurface,
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+                                                                    cairo_surface_get_content(m_pSurface),
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+                                                                    extents.getWidth() * m_fScale,
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+                                                                    extents.getHeight() * m_fScale);
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+
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+#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 14, 0)
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+            cairo_surface_set_device_scale(surface, m_fScale, m_fScale);
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+#endif
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+            cairo_t* stipple_cr = cairo_create(surface);
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+            cairo_set_source_rgb(stipple_cr, 1.0, 1.0, 1.0);
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+            cairo_mask(stipple_cr, pattern);
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             cairo_pattern_destroy(pattern);
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+            cairo_destroy(stipple_cr);
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+            cairo_mask_surface(cr, surface, extents.getMinX(), extents.getMinY());
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+            cairo_surface_destroy(surface);
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         }
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         else
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         {
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-- 
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2.17.1
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