diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/radeon_lock.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/radeon_lock.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/radeon_lock.c b/src/mesa/drivers/dri/r300/radeon_lock.c new file mode 100644 index 0000000000..b5fb20ddb4 --- /dev/null +++ b/src/mesa/drivers/dri/r300/radeon_lock.c @@ -0,0 +1,159 @@ +/* +Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. + +The Weather Channel (TM) funded Tungsten Graphics to develop the +initial release of the Radeon 8500 driver under the XFree86 license. +This notice must be preserved. + +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: + * Keith Whitwell <keith@tungstengraphics.com> + */ +#include <string.h> + +#include "r200_context.h" +#include "radeon_lock.h" +#include "r200_tex.h" +#include "r200_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 radeon) +{ + int use_back; + + radeon->doPageFlip = radeon->sarea->pfState; + + use_back = (radeon->glCtx->Color._DrawDestMask == DD_BACK_LEFT_BIT); + use_back ^= (radeon->sarea->pfCurrentPage == 1); + + if (use_back) { + radeon->state.color.drawOffset = radeon->radeonScreen->backOffset; + radeon->state.color.drawPitch = radeon->radeonScreen->backPitch; + } else { + radeon->state.color.drawOffset = radeon->radeonScreen->frontOffset; + radeon->state.color.drawPitch = radeon->radeonScreen->frontPitch; + } +} + +/** + * Called by radeonGetLock() after the lock has been obtained. + */ +static void r200RegainedLock(r200ContextPtr r200) +{ + __DRIdrawablePrivate *dPriv = r200->radeon.dri.drawable; + __DRIscreenPrivate *sPriv = r200->radeon.dri.screen; + int i; + + if (r200->radeon.lastStamp != dPriv->lastStamp) { + radeonUpdatePageFlipping(&r200->radeon); + R200_STATECHANGE(r200, ctx); + r200->hw.ctx.cmd[CTX_RB3D_COLOROFFSET] = + r200->radeon.state.color.drawOffset + + r200->radeon.radeonScreen->fbLocation; + r200->hw.ctx.cmd[CTX_RB3D_COLORPITCH] = + r200->radeon.state.color.drawPitch; + + if (r200->radeon.glCtx->Color._DrawDestMask == DD_BACK_LEFT_BIT) + r200SetCliprects(r200, GL_BACK_LEFT); + else + r200SetCliprects(r200, GL_FRONT_LEFT); + r200UpdateViewportOffset(r200->radeon.glCtx); + r200->radeon.lastStamp = dPriv->lastStamp; + } + + for (i = 0; i < r200->nr_heaps; i++) { + DRI_AGE_TEXTURES(r200->texture_heaps[i]); + } +} + +static void r300RegainedLock(radeonContextPtr radeon) +{ + __DRIdrawablePrivate *dPriv = radeon->dri.drawable; + __DRIscreenPrivate *sPriv = radeon->dri.screen; + int i; + + if (radeon->lastStamp != dPriv->lastStamp) { + radeonUpdatePageFlipping(radeon); + +#if 0 + if (radeon->glCtx->Color._DrawDestMask == DD_BACK_LEFT_BIT) + r200SetCliprects(r200, GL_BACK_LEFT); + else + r200SetCliprects(r200, GL_FRONT_LEFT); + r200UpdateViewportOffset(r200->radeon.glCtx); +#endif + radeon->lastStamp = dPriv->lastStamp; + } + +#if 0 + for (i = 0; i < r200->nr_heaps; i++) { + DRI_AGE_TEXTURES(r200->texture_heaps[i]); + } +#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 radeonGetLock(radeonContextPtr radeon, GLuint flags) +{ + __DRIdrawablePrivate *dPriv = radeon->dri.drawable; + __DRIscreenPrivate *sPriv = radeon->dri.screen; + drm_radeon_sarea_t *sarea = radeon->sarea; + + drmGetLock(radeon->dri.fd, radeon->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 (sarea->ctx_owner != radeon->dri.hwContext) + sarea->ctx_owner = radeon->dri.hwContext; + + if (IS_FAMILY_R300(radeon)) + r300RegainedLock(radeon); + else + r200RegainedLock((r200ContextPtr)radeon); + + radeon->lost_context = GL_TRUE; +} |