Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  */
       9             : 
      10             : #include "openglx11cairotextrender.hxx"
      11             : 
      12             : #include "openglgdiimpl.hxx"
      13             : #include "salbmp.hxx"
      14             : #include <vcl/salbtype.hxx>
      15             : 
      16             : #include <cairo-svg.h>
      17             : 
      18           0 : OpenGLX11CairoTextRender::OpenGLX11CairoTextRender(X11SalGraphics& rParent)
      19           0 :     : X11CairoTextRender(rParent)
      20             : {
      21           0 : }
      22             : 
      23           0 : cairo_t* OpenGLX11CairoTextRender::getCairoContext()
      24             : {
      25             :     // static size_t id = 0;
      26             :     // OString aFileName = OString("/tmp/libo_logs/text_rendering") + OString::number(id++) + OString(".svg");
      27             :     // cairo_surface_t* surface = cairo_svg_surface_create(aFileName.getStr(), GetWidth(), GetHeight());
      28           0 :     cairo_surface_t* surface = NULL;
      29           0 :     OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
      30           0 :     if( pImpl )
      31             :     {
      32           0 :         Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
      33           0 :         if( aClipRect.GetWidth() == 0 || aClipRect.GetHeight() == 0 )
      34             :         {
      35           0 :             aClipRect.setWidth( GetWidth() );
      36           0 :             aClipRect.setHeight( GetHeight() );
      37             :         }
      38           0 :         surface = cairo_image_surface_create( CAIRO_FORMAT_ARGB32, aClipRect.GetWidth(), aClipRect.GetHeight() );
      39             :     }
      40           0 :     if (!surface)
      41           0 :         return NULL;
      42           0 :     cairo_t *cr = cairo_create(surface);
      43           0 :     cairo_surface_destroy(surface);
      44           0 :     return cr;
      45             : }
      46             : 
      47           0 : void OpenGLX11CairoTextRender::getSurfaceOffset( double& nDX, double& nDY )
      48             : {
      49           0 :     OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
      50           0 :     if( pImpl )
      51             :     {
      52           0 :         Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
      53           0 :         nDX = -aClipRect.Left();
      54           0 :         nDY = -aClipRect.Top();
      55             :     }
      56           0 : }
      57             : 
      58           0 : void OpenGLX11CairoTextRender::drawSurface(cairo_t* cr)
      59             : {
      60             :     // XXX: lfrb: GLES 2.0 doesn't support GL_UNSIGNED_INT_8_8_8_8_REV
      61           0 :     OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
      62           0 :     if(!pImpl)
      63           0 :         return;
      64             : 
      65           0 :     cairo_surface_t* pSurface = cairo_get_target(cr);
      66           0 :     int nWidth = cairo_image_surface_get_width( pSurface );
      67           0 :     int nHeight = cairo_image_surface_get_height( pSurface );
      68           0 :     unsigned char *pSrc = cairo_image_surface_get_data( pSurface );
      69             : 
      70             :     // XXX: lfrb: GLES 2.0 doesn't support GL_UNSIGNED_INT_8_8_8_8_REV
      71           0 :     Rectangle aClipRect = pImpl->getClipRegion().GetBoundRect();
      72             : 
      73             :     SalTwoRect aRect(0, 0, nWidth, nHeight,
      74           0 :             aClipRect.Left(), aClipRect.Top(), nWidth, nHeight);
      75             : 
      76             :     // Cairo surface data is ARGB with premultiplied alpha and is Y-inverted
      77           0 :     OpenGLTexture aTexture( nWidth, nHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pSrc );
      78           0 :     pImpl->PreDraw();
      79           0 :     pImpl->DrawAlphaTexture( aTexture, aRect, true, true );
      80           0 :     pImpl->PostDraw();
      81           9 : }
      82             : 
      83             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */