llwindowmesaheadless.cpp
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- /**
- * @file llwindowmesaheadless.cpp
- * @brief Platform-dependent implementation of llwindow
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "indra_constants.h"
- #include "llwindowmesaheadless.h"
- #include "llgl.h"
- #define MESA_CHANNEL_TYPE GL_UNSIGNED_SHORT
- #define MESA_CHANNEL_SIZE 2
- U16 *gMesaBuffer = NULL;
- //
- // LLWindowMesaHeadless
- //
- LLWindowMesaHeadless::LLWindowMesaHeadless(LLWindowCallbacks* callbacks,
- const std::string& title, const std::string& 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(callbacks, 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();
- }