From 5df82c82bd53db90eb72c5aad4dd20cf6f1116b1 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 22 Aug 2003 20:11:43 +0000 Subject: patch to import Jon Smirl's work from Bitkeeper --- src/mesa/drivers/dri/radeon/radeon_lock.c | 128 ++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 src/mesa/drivers/dri/radeon/radeon_lock.c (limited to 'src/mesa/drivers/dri/radeon/radeon_lock.c') diff --git a/src/mesa/drivers/dri/radeon/radeon_lock.c b/src/mesa/drivers/dri/radeon/radeon_lock.c new file mode 100644 index 0000000000..96a4f9d112 --- /dev/null +++ b/src/mesa/drivers/dri/radeon/radeon_lock.c @@ -0,0 +1,128 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/radeon/radeon_lock.c,v 1.5 2002/10/30 12:51:55 alanh Exp $ */ +/************************************************************************** + +Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and + VA Linux Systems Inc., Fremont, California. + +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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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: + * Kevin E. Martin + * Gareth Hughes + */ + +#include "glheader.h" +#include "radeon_context.h" +#include "radeon_lock.h" +#include "radeon_tex.h" +#include "radeon_state.h" +#include "radeon_ioctl.h" + +#if DEBUG_LOCKING +char *prevLockFile = NULL; +int prevLockLine = 0; +#endif + +/* Turn on/off page flipping according to the flags in the sarea: + */ +static void +radeonUpdatePageFlipping( radeonContextPtr rmesa ) +{ + int use_back; + + if (rmesa->dri.drmMinor < 3) + return; + + rmesa->doPageFlip = rmesa->sarea->pfAllowPageFlip; + + use_back = (rmesa->glCtx->Color._DrawDestMask == BACK_LEFT_BIT); + use_back ^= (rmesa->sarea->pfCurrentPage == 1); + + if ( RADEON_DEBUG & DEBUG_VERBOSE ) + fprintf(stderr, "%s allow %d current %d\n", __FUNCTION__, + rmesa->doPageFlip, + rmesa->sarea->pfCurrentPage ); + + if ( use_back ) { + rmesa->state.color.drawOffset = rmesa->radeonScreen->backOffset; + rmesa->state.color.drawPitch = rmesa->radeonScreen->backPitch; + } else { + rmesa->state.color.drawOffset = rmesa->radeonScreen->frontOffset; + rmesa->state.color.drawPitch = rmesa->radeonScreen->frontPitch; + } + + RADEON_STATECHANGE( rmesa, ctx ); + rmesa->hw.ctx.cmd[CTX_RB3D_COLOROFFSET] = rmesa->state.color.drawOffset; + rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] = rmesa->state.color.drawPitch; +} + + + +/* 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 radeonGetLock( radeonContextPtr rmesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; + __DRIscreenPrivate *sPriv = rmesa->dri.screen; + RADEONSAREAPrivPtr sarea = rmesa->sarea; + + drmGetLock( rmesa->dri.fd, rmesa->dri.hwContext, 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 ( rmesa->lastStamp != dPriv->lastStamp ) { + radeonUpdatePageFlipping( rmesa ); + if (rmesa->glCtx->Color._DrawDestMask == BACK_LEFT_BIT) + radeonSetCliprects( rmesa, GL_BACK_LEFT ); + else + radeonSetCliprects( rmesa, GL_FRONT_LEFT ); + radeonUpdateViewportOffset( rmesa->glCtx ); + rmesa->lastStamp = dPriv->lastStamp; + } + + if ( sarea->ctxOwner != rmesa->dri.hwContext ) { + int i; + sarea->ctxOwner = rmesa->dri.hwContext; + + for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) { + DRI_AGE_TEXTURES( rmesa->texture_heaps[ i ] ); + } + } +} -- cgit v1.2.3