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/* $Id: feedback_context.c $ */
/** @file
* VBox feedback spu, context tracking.
*/
/*
* Copyright (C) 2009 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#include "cr_spu.h"
#include "cr_error.h"
#include "feedbackspu.h"
/*@todo Multithreading case. (See feedback_spu.self.RenderMode)*/
GLint FEEDBACKSPU_APIENTRY
feedbackspu_CreateContext( const char *dpyName, GLint visual, GLint shareCtx )
{
GLint ctx, slot;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
ctx = feedback_spu.child.CreateContext(dpyName, visual, shareCtx);
/* find an empty context slot */
for (slot = 0; slot < feedback_spu.numContexts; slot++) {
if (!feedback_spu.context[slot].clientState) {
/* found empty slot */
break;
}
}
if (slot == feedback_spu.numContexts) {
feedback_spu.numContexts++;
}
feedback_spu.context[slot].clientState = crStateCreateContext(NULL, visual, NULL);
feedback_spu.context[slot].clientCtx = ctx;
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
return ctx;
}
void FEEDBACKSPU_APIENTRY
feedbackspu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
feedback_spu.child.MakeCurrent(window, nativeWindow, ctx);
if (ctx) {
int slot;
GLint oldmode;
for (slot=0; slot<feedback_spu.numContexts; ++slot)
if (feedback_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < feedback_spu.numContexts);
crStateMakeCurrent(feedback_spu.context[slot].clientState);
crStateGetIntegerv(GL_RENDER_MODE, &oldmode);
if (oldmode!=feedback_spu.render_mode)
{
feedback_spu.self.RenderMode(oldmode);
}
}
else
{
crStateMakeCurrent(NULL);
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
}
void FEEDBACKSPU_APIENTRY
feedbackspu_DestroyContext( GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
feedback_spu.child.DestroyContext(ctx);
if (ctx) {
int slot;
for (slot=0; slot<feedback_spu.numContexts; ++slot)
if (feedback_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < feedback_spu.numContexts);
crStateDestroyContext(feedback_spu.context[slot].clientState);
feedback_spu.context[slot].clientState = NULL;
feedback_spu.context[slot].clientCtx = 0;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
}
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