83 lines
3.0 KiB
C
83 lines
3.0 KiB
C
/*
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* Context and render target management in wined3d
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*
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* Copyright 2007 Stefan Dösinger for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdio.h>
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#ifdef HAVE_FLOAT_H
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# include <float.h>
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#endif
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#include "wined3d_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(d3d);
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/*****************************************************************************
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* ActivateContext
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*
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* Finds a rendering context and drawable matching the device and render
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* target for the current thread, activates them and puts them into the
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* requested state.
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*
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* Params:
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* This: Device to activate the context for
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* target: Requested render target
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* usage: Prepares the context for blitting, drawing or other actions
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*
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*****************************************************************************/
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void ActivateContext(IWineD3DDeviceImpl *This, IWineD3DSurface *target, ContextUsage usage) {
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DWORD tid = This->createParms.BehaviorFlags & D3DCREATE_MULTITHREADED ? GetCurrentThreadId() : 0;
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int i;
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DWORD dirtyState, idx;
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BYTE shift;
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WineD3DContext *context;
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TRACE("(%p): Selecting context for render target %p, thread %d\n", This, target, tid);
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/* TODO: Render target selection */
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/* TODO: Thread selection */
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/* TODO: Activate the opengl context */
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context = &This->contexts[This->activeContext];
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switch(usage) {
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case CTXUSAGE_RESOURCELOAD:
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/* This does not require any special states to be set up */
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break;
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case CTXUSAGE_DRAWPRIM:
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/* This needs all dirty states applied */
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for(i=0; i < context->numDirtyEntries; i++) {
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dirtyState = context->dirtyArray[i];
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idx = dirtyState >> 5;
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shift = dirtyState & 0x1f;
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context->isStateDirty[idx] &= ~(1 << shift);
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StateTable[dirtyState].apply(dirtyState, This->stateBlock, context);
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}
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context->numDirtyEntries = 0; /* This makes the whole list clean */
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break;
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case CTXUSAGE_BLIT:
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FIXME("Setting up for blitting not supported yet\n");
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break;
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default:
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FIXME("Unexpected context usage requested\n");
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}
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}
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