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/* -*- 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 <opengl/x11/cairotextrender.hxx>
#include <opengl/gdiimpl.hxx>
#include <cairo.h>
OpenGLX11CairoTextRender::OpenGLX11CairoTextRender(X11SalGraphics& rParent)
: X11CairoTextRender(rParent)
{
}
cairo_t* OpenGLX11CairoTextRender::getCairoContext()
{
cairo_surface_t* surface = nullptr;
OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
if( pImpl )
{
tools::Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
if( aClipRect.GetWidth() == 0 || aClipRect.GetHeight() == 0 )
{
aClipRect.setWidth( GetWidth() );
aClipRect.setHeight( GetHeight() );
}
surface = cairo_image_surface_create( CAIRO_FORMAT_ARGB32, aClipRect.GetWidth(), aClipRect.GetHeight() );
}
if (!surface)
return nullptr;
cairo_t *cr = cairo_create(surface);
cairo_surface_destroy(surface);
return cr;
}
void OpenGLX11CairoTextRender::getSurfaceOffset( double& nDX, double& nDY )
{
OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
if( pImpl )
{
tools::Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
nDX = -aClipRect.Left();
nDY = -aClipRect.Top();
}
}
void OpenGLX11CairoTextRender::releaseCairoContext(cairo_t* cr)
{
// XXX: lfrb: GLES 2.0 doesn't support GL_UNSIGNED_INT_8_8_8_8_REV
OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
if(!pImpl)
{
cairo_destroy(cr);
return;
}
cairo_surface_t* pSurface = cairo_get_target(cr);
int nWidth = cairo_image_surface_get_width( pSurface );
int nHeight = cairo_image_surface_get_height( pSurface );
cairo_surface_flush(pSurface);
unsigned char *pSrc = cairo_image_surface_get_data( pSurface );
// XXX: lfrb: GLES 2.0 doesn't support GL_UNSIGNED_INT_8_8_8_8_REV
tools::Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
SalTwoRect aRect(0, 0, nWidth, nHeight,
aClipRect.Left(), aClipRect.Top(), nWidth, nHeight);
// Cairo surface data is ARGB with premultiplied alpha and is Y-inverted
OpenGLTexture aTexture( nWidth, nHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pSrc );
pImpl->PreDraw();
pImpl->DrawAlphaTexture( aTexture, aRect, true, true );
pImpl->PostDraw();
cairo_destroy(cr);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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