diff options
Diffstat (limited to 'src/mach64_lock.c')
| -rw-r--r-- | src/mach64_lock.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/mach64_lock.c b/src/mach64_lock.c new file mode 100644 index 0000000..b73e350 --- /dev/null +++ b/src/mach64_lock.c @@ -0,0 +1,96 @@ +/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */ +/* + * Copyright 2000 Gareth Hughes + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * Authors: + * Gareth Hughes <gareth@valinux.com> + * Leif Delgass <ldelgass@retinalburn.net> + * José Fonseca <j_r_fonseca@yahoo.co.uk> + */ + +#include "mach64_context.h" +#include "mach64_state.h" +#include "mach64_lock.h" +#include "mach64_tex.h" +#include "drirenderbuffer.h" + +#if DEBUG_LOCKING +char *prevLockFile = NULL; +int prevLockLine = 0; +#endif + + +/* Update the hardware state. This is called if another context has + * grabbed the hardware lock, which includes the X server. This + * function also updates the driver's window state after the X server + * moves, resizes or restacks a window -- the change will be reflected + * in the drawable position and clip rects. Since the X server grabs + * the hardware lock when it changes the window state, this routine will + * automatically be called after such a change. + */ +void mach64GetLock( mach64ContextPtr mmesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = mmesa->driDrawable; + __DRIscreenPrivate *sPriv = mmesa->driScreen; + drm_mach64_sarea_t *sarea = mmesa->sarea; + int i; + + drmGetLock( mmesa->driFd, mmesa->hHWContext, flags ); + + /* The window might have moved, so we might need to get new clip + * rects. + * + * NOTE: This releases and regrabs the hw lock to allow the X server + * to respond to the DRI protocol request for new drawable info. + * Since the hardware state depends on having the latest drawable + * clip rects, all state checking must be done _after_ this call. + */ + DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv ); + + if ( mmesa->lastStamp != dPriv->lastStamp ) { + mmesa->lastStamp = dPriv->lastStamp; + if (mmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) + mach64SetCliprects( mmesa->glCtx, GL_BACK_LEFT ); + else + mach64SetCliprects( mmesa->glCtx, GL_FRONT_LEFT ); + driUpdateFramebufferSize( mmesa->glCtx, dPriv ); + mach64CalcViewport( mmesa->glCtx ); + } + + mmesa->dirty |= (MACH64_UPLOAD_CONTEXT + | MACH64_UPLOAD_MISC + | MACH64_UPLOAD_CLIPRECTS); + + /* EXA render acceleration uses the texture engine, so restore it */ + mmesa->dirty |= (MACH64_UPLOAD_TEXTURE); + + if ( sarea->ctx_owner != mmesa->hHWContext ) { + sarea->ctx_owner = mmesa->hHWContext; + mmesa->dirty = MACH64_UPLOAD_ALL; + } + + for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) { + DRI_AGE_TEXTURES( mmesa->texture_heaps[i] ); + } +} |