crOpenGL/feedback/feedback_context.c

587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync/* $Id$ */
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync/** @file
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync * VBox feedback spu, context tracking.
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync */
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync/*
c7814cf6e1240a519cbec0441e033d0e2470ed00vboxsync * Copyright (C) 2009-2012 Oracle Corporation
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync *
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * available from http://www.virtualbox.org. This file is free software;
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * you can redistribute it and/or modify it under the terms of the GNU
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * General Public License (GPL) as published by the Free Software
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
8507f6a07ff05e3119f2fc2b23c2b6a227abf0afvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync */
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#include "cr_spu.h"
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#include "cr_error.h"
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#include "feedbackspu.h"
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync/*@todo Multithreading case. (See feedback_spu.self.RenderMode)*/
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsyncGLint FEEDBACKSPU_APIENTRY
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsyncfeedbackspu_VBoxCreateContext( GLint con, const char *dpyName, GLint visual, GLint shareCtx )
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync{
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    GLint ctx, slot;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crLockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsync    ctx = feedback_spu.child.VBoxCreateContext(con, dpyName, visual, shareCtx);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    /* find an empty context slot */
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    for (slot = 0; slot < feedback_spu.numContexts; slot++) {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        if (!feedback_spu.context[slot].clientState) {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync            /* found empty slot */
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync            break;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    if (slot == feedback_spu.numContexts) {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        feedback_spu.numContexts++;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    feedback_spu.context[slot].clientState = crStateCreateContext(NULL, visual, NULL);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    feedback_spu.context[slot].clientCtx = ctx;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crUnlockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    return ctx;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync}
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsyncGLint FEEDBACKSPU_APIENTRY
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsyncfeedbackspu_CreateContext( const char *dpyName, GLint visual, GLint shareCtx )
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsync{
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsync    return feedbackspu_VBoxCreateContext( 0, dpyName, visual, shareCtx );
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsync}
d10b60270f0c0eeb87f45002a010cff8ba2126b1vboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsyncvoid FEEDBACKSPU_APIENTRY
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsyncfeedbackspu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync{
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crLockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    feedback_spu.child.MakeCurrent(window, nativeWindow, ctx);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    if (ctx) {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        int slot;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        GLint oldmode;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        for (slot=0; slot<feedback_spu.numContexts; ++slot)
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync            if (feedback_spu.context[slot].clientCtx == ctx) break;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        CRASSERT(slot < feedback_spu.numContexts);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        crStateMakeCurrent(feedback_spu.context[slot].clientState);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        crStateGetIntegerv(GL_RENDER_MODE, &oldmode);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        if (oldmode!=feedback_spu.render_mode)
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync            feedback_spu.self.RenderMode(oldmode);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    else
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        crStateMakeCurrent(NULL);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crUnlockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync}
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsyncvoid FEEDBACKSPU_APIENTRY
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsyncfeedbackspu_DestroyContext( GLint ctx )
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync{
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crLockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    feedback_spu.child.DestroyContext(ctx);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    if (ctx) {
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        int slot;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        for (slot=0; slot<feedback_spu.numContexts; ++slot)
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync            if (feedback_spu.context[slot].clientCtx == ctx) break;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        CRASSERT(slot < feedback_spu.numContexts);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        crStateDestroyContext(feedback_spu.context[slot].clientState);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        feedback_spu.context[slot].clientState = NULL;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync        feedback_spu.context[slot].clientCtx = 0;
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    }
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#ifdef CHROMIUM_THREADSAFE
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync    crUnlockMutex(&feedback_spu.mutex);
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync#endif
587ef8c2ffe13f8b269c52759c98ca454ae8438evboxsync}