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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 "vcl/salbtype.hxx"
#include "unx/pixmap.hxx"
#include "unx/saldisp.hxx"
#include "unx/salframe.h"
#include "unx/salgdi.h"
#include "unx/salvd.h"
#include "opengl/texture.hxx"
#include "opengl/x11/gdiimpl.hxx"
#include <vcl/opengl/OpenGLContext.hxx>
#include <vcl/opengl/OpenGLHelper.hxx>
X11OpenGLSalGraphicsImpl::X11OpenGLSalGraphicsImpl( X11SalGraphics& rParent ):
OpenGLSalGraphicsImpl(),
mrParent(rParent)
{
}
X11OpenGLSalGraphicsImpl::~X11OpenGLSalGraphicsImpl()
{
}
GLfloat X11OpenGLSalGraphicsImpl::GetWidth() const
{
if( mrParent.m_pFrame )
return mrParent.m_pFrame->maGeometry.nWidth;
else if( mrParent.m_pVDev )
{
long nWidth = 0;
long nHeight = 0;
mrParent.m_pVDev->GetSize( nWidth, nHeight );
return nWidth;
}
return 1;
}
GLfloat X11OpenGLSalGraphicsImpl::GetHeight() const
{
if( mrParent.m_pFrame )
return mrParent.m_pFrame->maGeometry.nHeight;
else if( mrParent.m_pVDev )
{
long nWidth = 0;
long nHeight = 0;
mrParent.m_pVDev->GetSize( nWidth, nHeight );
return nHeight;
}
return 1;
}
void X11OpenGLSalGraphicsImpl::Init()
{
X11WindowProvider *pProvider = dynamic_cast<X11WindowProvider*>(mrParent.m_pFrame);
if (pProvider)
{
Window aWin = pProvider->GetX11Window();
maContext.init( mrParent.GetXDisplay(), aWin, mrParent.m_nXScreen.getXScreen());
SetOffscreen( false );
}
else if( mrParent.m_pVDev )
{
maContext.init( mrParent.GetXDisplay(), mrParent.m_pVDev->GetDrawable(),
mrParent.m_pVDev->GetWidth(), mrParent.m_pVDev->GetHeight(),
mrParent.m_nXScreen.getXScreen() );
SetOffscreen( true );
}
else
{
SAL_WARN( "vcl.opengl", "what happened here?" );
}
}
bool X11OpenGLSalGraphicsImpl::FillPixmapFromScreen( X11Pixmap* pPixmap, int nX, int nY )
{
Display* pDisplay = mrParent.GetXDisplay();
SalX11Screen nScreen = mrParent.GetScreenNumber();
XVisualInfo aVisualInfo;
XImage* pImage;
char* pData;
SAL_INFO( "vcl.opengl", "FillPixmapFromScreen" );
if( !OpenGLHelper::GetVisualInfo( pDisplay, nScreen.getXScreen(), aVisualInfo ) )
return false;
// make sure everything is synced up before reading back
maContext.makeCurrent();
glXWaitX();
// TODO: lfrb: What if offscreen?
pData = (char*) malloc( pPixmap->GetWidth() * pPixmap->GetHeight() * 4 );
glPixelStorei( GL_PACK_ALIGNMENT, 1 );
glReadPixels( nX, GetHeight() - nY, pPixmap->GetWidth(), pPixmap->GetHeight(),
GL_RGBA, GL_UNSIGNED_BYTE, pData );
pImage = XCreateImage( pDisplay, aVisualInfo.visual, 24, ZPixmap, 0, pData,
pPixmap->GetWidth(), pPixmap->GetHeight(), 8, 0 );
XInitImage( pImage );
GC aGC = XCreateGC( pDisplay, pPixmap->GetPixmap(), 0, NULL );
XPutImage( pDisplay, pPixmap->GetDrawable(), aGC, pImage,
0, 0, 0, 0, pPixmap->GetWidth(), pPixmap->GetHeight() );
XFreeGC( pDisplay, aGC );
XDestroyImage( pImage );
CHECK_GL_ERROR();
return true;
}
bool X11OpenGLSalGraphicsImpl::RenderPixmapToScreen( X11Pixmap* pPixmap, int nX, int nY )
{
const int aAttribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGB_EXT,
None
};
Display* pDisplay = mrParent.GetXDisplay();
GLXFBConfig pFbConfig;
GLXPixmap pGlxPixmap;
SalTwoRect aPosAry;
bool bInverted;
SAL_INFO( "vcl.opengl", "RenderPixmapToScreen (" << nX << " " << nY << ")" );
aPosAry.mnSrcX = 0;
aPosAry.mnSrcY = 0;
aPosAry.mnDestX = nX;
aPosAry.mnDestY = nY;
aPosAry.mnSrcWidth = aPosAry.mnDestWidth = pPixmap->GetWidth();
aPosAry.mnSrcHeight = aPosAry.mnDestHeight = pPixmap->GetHeight();
XSync( pDisplay, 0 );
pFbConfig = OpenGLHelper::GetPixmapFBConfig( pDisplay, bInverted );
pGlxPixmap = glXCreatePixmap( pDisplay, pFbConfig, pPixmap->GetPixmap(), aAttribs);
XSync( pDisplay, 0 );
PreDraw();
OpenGLTexture aTexture( pPixmap->GetWidth(), pPixmap->GetHeight(), false );
glActiveTexture( GL_TEXTURE0 );
aTexture.Bind();
//TODO: lfrb: glXGetProc to get the functions
glXBindTexImageEXT( pDisplay, pGlxPixmap, GLX_FRONT_LEFT_EXT, NULL );
DrawTexture( aTexture, aPosAry, bInverted );
glXReleaseTexImageEXT( pDisplay, pGlxPixmap, GLX_FRONT_LEFT_EXT );
glXDestroyPixmap( pDisplay, pGlxPixmap );
aTexture.Unbind();
PostDraw();
CHECK_GL_ERROR();
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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