Do all svp text rendering with cairo

enabling us to delete a whole pile of foo

For android we patch cairo, which is internal in that case, to swap the rgb
components so that cairo then matches the OpenGL GL_RGBA format so we can use
it there where we don't have GL_BGRA support.

Change-Id: I25e34889c7b7263438b143dd2a2ad882fb0f190a

1 files changed, 63 insertions, 0 deletions

diff --git a/vcl/headless/svpcairotextrender.cxx b/vcl/headless/svpcairotextrender.cxx
new file mode 100644
index 000000000000..06abf0ccc48a
--- /dev/null
+++ b/vcl/headless/svpcairotextrender.cxx
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "svpcairotextrender.hxx"
+#include "headless/svpgdi.hxx"
+
+SvpCairoTextRender::SvpCairoTextRender(SvpSalGraphics& rParent)
+    : mrParent(rParent)
+{
+}
+
+GlyphCache& SvpCairoTextRender::getPlatformGlyphCache()
+{
+    return SvpSalGraphics::getPlatformGlyphCache();
+}
+
+cairo_t* SvpCairoTextRender::getCairoContext()
+{
+    cairo_t* pRet = mrParent.getCairoContext();
+    if (!pRet)
+    {
+        mxTmpSurface = mrParent.createSimpleMask();
+        pRet = SvpSalGraphics::createCairoContext(mxTmpSurface);
+    }
+    return pRet;
+}
+
+void SvpCairoTextRender::getSurfaceOffset(double& nDX, double& nDY)
+{
+    nDX = 0;
+    nDY = 0;
+}
+
+void SvpCairoTextRender::clipRegion(cairo_t* cr)
+{
+    mrParent.clipRegion(cr);
+}
+
+basebmp::BitmapDeviceSharedPtr SvpCairoTextRender::createSimpleMask()
+{
+    return mrParent.createSimpleMask();
+}
+
+void SvpCairoTextRender::drawSurface(cairo_t*)
+{
+    //typically we have drawn directly to the real surface, in edge-cases of
+    //strange surface depths, we'll have drawn into a tmp surface, so flush
+    //it
+    if (mxTmpSurface)
+    {
+        // blend text color into target using the glyph's mask
+        mrParent.BlendTextColor(basebmp::Color(GetTextColor()), mxTmpSurface, basegfx::B2IPoint(0, 0));
+        mxTmpSurface.reset();
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */