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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 <svdata.hxx>
#include <unx/pixmap.hxx>
#include <unx/saldisp.hxx>
#include <unx/salframe.h>
#include <unx/salgdi.h>
#include <unx/salvd.h>
#include <unx/x11/xlimits.hxx>
#include <opengl/texture.hxx>
#include <opengl/x11/gdiimpl.hxx>
#include <opengl/x11/salvd.hxx>
#include <vcl/opengl/OpenGLContext.hxx>
#include <vcl/opengl/OpenGLHelper.hxx>
X11OpenGLSalGraphicsImpl::X11OpenGLSalGraphicsImpl( X11SalGraphics& rParent ):
OpenGLSalGraphicsImpl(rParent.GetGeometryProvider()),
mrParent(rParent)
{
}
X11OpenGLSalGraphicsImpl::~X11OpenGLSalGraphicsImpl()
{
}
void X11OpenGLSalGraphicsImpl::Init()
{
// The m_pFrame and m_pVDev pointers are updated late in X11
mpParent = mrParent.GetGeometryProvider();
OpenGLSalGraphicsImpl::Init();
}
OpenGLContext* X11OpenGLSalGraphicsImpl::CreateWinContext()
{
X11WindowProvider *pProvider = dynamic_cast<X11WindowProvider*>(mrParent.m_pFrame);
if( !pProvider )
return NULL;
Window aWin = pProvider->GetX11Window();
OpenGLContext* pContext = new OpenGLContext();
pContext->init( mrParent.GetXDisplay(), aWin,
mrParent.m_nXScreen.getXScreen() );
return pContext;
}
OpenGLContext* X11OpenGLSalGraphicsImpl::CreatePixmapContext()
{
X11OpenGLSalVirtualDevice* pVDev = dynamic_cast<X11OpenGLSalVirtualDevice*>(mrParent.m_pVDev);
if( pVDev == NULL )
return NULL;
return ImplGetDefaultWindow()->GetGraphics()->GetOpenGLContext();
}
bool X11OpenGLSalGraphicsImpl::UseContext( OpenGLContext* pContext )
{
X11WindowProvider *pProvider = dynamic_cast<X11WindowProvider*>(mrParent.m_pFrame);
if( !pContext->isInitialized() )
return false;
if( !pProvider )
return ( pContext->getOpenGLWindow().win != None );
else
return ( pContext->getOpenGLWindow().win == pProvider->GetX11Window() );
}
void X11OpenGLSalGraphicsImpl::copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics )
{
OpenGLSalGraphicsImpl *pImpl = pSrcGraphics ? static_cast< OpenGLSalGraphicsImpl* >(pSrcGraphics->GetImpl()) : static_cast< OpenGLSalGraphicsImpl *>(mrParent.GetImpl());
OpenGLSalGraphicsImpl::DoCopyBits( rPosAry, *pImpl );
}
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
mpContext->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, X11Pixmap* pMask, int nX, int nY )
{
const int aAttribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
None
};
Display* pDisplay = mrParent.GetXDisplay();
bool bInverted;
SAL_INFO( "vcl.opengl", "RenderPixmapToScreen (" << nX << " " << nY << ")" );
const long nWidth = pPixmap->GetWidth();
const long nHeight = pPixmap->GetHeight();
SalTwoRect aPosAry(0, 0, nWidth, nHeight, nX, nY, nWidth, nHeight);
PreDraw();
//glClear( GL_COLOR_BUFFER_BIT );
XSync( pDisplay, 0 );
GLXFBConfig pFbConfig = OpenGLHelper::GetPixmapFBConfig( pDisplay, bInverted );
GLXPixmap pGlxPixmap = glXCreatePixmap( pDisplay, pFbConfig, pPixmap->GetPixmap(), aAttribs);
GLXPixmap pGlxMask;
if( pMask != NULL )
pGlxMask = glXCreatePixmap( pDisplay, pFbConfig, pMask->GetPixmap(), aAttribs);
else
pGlxMask = 0;
XSync( pDisplay, 0 );
if( !pGlxPixmap )
SAL_WARN( "vcl.opengl", "Couldn't create GLXPixmap" );
//TODO: lfrb: glXGetProc to get the functions
OpenGLTexture aTexture( pPixmap->GetWidth(), pPixmap->GetHeight(), false );
glActiveTexture( GL_TEXTURE0 );
aTexture.Bind();
glXBindTexImageEXT( pDisplay, pGlxPixmap, GLX_FRONT_LEFT_EXT, NULL );
aTexture.Unbind();
if( pMask != NULL && pGlxMask )
{
OpenGLTexture aMaskTexture( pMask->GetWidth(), pMask->GetHeight(), false );
aMaskTexture.Bind();
glXBindTexImageEXT( pDisplay, pGlxMask, GLX_FRONT_LEFT_EXT, NULL );
aMaskTexture.Unbind();
DrawTextureDiff( aTexture, aMaskTexture, aPosAry, bInverted );
glXReleaseTexImageEXT( pDisplay, pGlxMask, GLX_FRONT_LEFT_EXT );
glXDestroyPixmap( pDisplay, pGlxMask );
}
else
{
DrawTexture( aTexture, aPosAry, bInverted );
}
CHECK_GL_ERROR();
glXReleaseTexImageEXT( pDisplay, pGlxPixmap, GLX_FRONT_LEFT_EXT );
glXDestroyPixmap( pDisplay, pGlxPixmap );
PostDraw();
CHECK_GL_ERROR();
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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