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/**
* @file llwindowmesaheadless.cpp
* @brief Platform-dependent implementation of llwindow
*
* Copyright (c) 2001-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
*/
#if LL_MESA_HEADLESS
#include "linden_common.h"
#include "indra_constants.h"
#include "llwindowmesaheadless.h"
#include "llgl.h"
#include "llglheaders.h"
#define MESA_CHANNEL_TYPE GL_UNSIGNED_SHORT
#define MESA_CHANNEL_SIZE 2
U16 *gMesaBuffer = NULL;
//
// LLWindowMesaHeadless
//
LLWindowMesaHeadless::LLWindowMesaHeadless(char *title, char *name, S32 x, S32 y, S32 width, S32 height,
U32 flags, BOOL fullscreen, BOOL clearBg,
BOOL disable_vsync, BOOL use_gl, BOOL ignore_pixel_depth)
: LLWindow(fullscreen, flags)
{
if (use_gl)
{
llinfos << "MESA Init" << llendl;
mMesaContext = OSMesaCreateContextExt( GL_RGBA, 32, 0, 0, NULL );
/* Allocate the image buffer */
mMesaBuffer = new unsigned char [width * height * 4 * MESA_CHANNEL_SIZE];
llassert(mMesaBuffer);
gMesaBuffer = (U16*)mMesaBuffer;
/* Bind the buffer to the context and make it current */
if (!OSMesaMakeCurrent( mMesaContext, mMesaBuffer, MESA_CHANNEL_TYPE, width, height ))
{
llerrs << "MESA: OSMesaMakeCurrent failed!" << llendl;
}
llverify(gGLManager.initGL());
}
}
LLWindowMesaHeadless::~LLWindowMesaHeadless()
{
delete mMesaBuffer;
OSMesaDestroyContext( mMesaContext );
}
void LLWindowMesaHeadless::swapBuffers()
{
glFinish();
}
#endif
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