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/* $XFree86$ */
/**************************************************************************
Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc.,
Cedar Park, Texas.
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
on the rights to use, copy, modify, merge, publish, distribute, sub
license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
ATI, PRECISION INSIGHT AND/OR THEIR 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 <kevin@precisioninsight.com>
*
*/
#include "r128_init.h"
#include "r128_mesa.h"
#include "r128_xmesa.h"
#include "r128_context.h"
#include "r128_lock.h"
#include "r128_reg.h"
#include "r128_cce.h"
#include "r128_state.h"
#include "r128_vb.h"
#include "r128_swap.h"
/* Copy the back color buffer to the front color buffer */
void r128SwapBuffers(r128ContextPtr r128ctx)
{
unsigned char *R128MMIO = r128ctx->r128Screen->mmio;
__DRIdrawablePrivate *dPriv = r128ctx->driDrawable;
int nc;
XF86DRIClipRectPtr c;
int dst_bpp;
CARD32 swapAge;
if (r128ctx->SWonly) {
/* FIXME: Provide software fallback for this case?? */
}
switch (r128ctx->r128Screen->bpp) {
case 8:
dst_bpp = R128_GMC_DST_8BPP_CI;
break;
case 16:
if (r128ctx->r128Screen->depth == 15) dst_bpp = R128_GMC_DST_15BPP;
else dst_bpp = R128_GMC_DST_16BPP;
break;
case 24:
dst_bpp = R128_GMC_DST_24BPP;
break;
case 32:
default:
dst_bpp = R128_GMC_DST_32BPP;
break;
}
LOCK_HARDWARE(r128ctx);
/* Flush any outstanding vertex buffers */
R128CCE_FLUSH_VB(r128ctx);
/* Throttle the frame rate -- only allow one pending swap buffers
request at a time */
while (r128ctx->lastSwapAge > (swapAge = INREG(R128_SWAP_AGE_REG)));
/* Init the clip rects here in case they changed during the
LOCK_HARDWARE macro */
c = dPriv->pClipRects;
nc = dPriv->numClipRects;
/* Cycle through the clip rects */
while (nc--) {
int fx = c[nc].x1;
int fy = c[nc].y1;
int fw = c[nc].x2 - fx;
int fh = c[nc].y2 - fy;
int bx = fx + r128ctx->r128Screen->backX;
int by = fy + r128ctx->r128Screen->backY;
fx += r128ctx->r128Screen->fbX;
fy += r128ctx->r128Screen->fbY;
R128CCE3(R128_CCE_PACKET3_CNTL_BITBLT_MULTI, 3);
R128CCE(R128_GMC_BRUSH_NONE
| R128_GMC_SRC_DATATYPE_COLOR
| R128_DP_SRC_SOURCE_MEMORY
| dst_bpp
| R128_ROP3_S);
R128CCE((bx << 16) | by);
R128CCE((fx << 16) | fy);
R128CCE((fw << 16) | fh);
}
++swapAge;
R128CCE0(R128_CCE_PACKET0, R128_SWAP_AGE_REG, 0);
R128CCE(swapAge);
r128ctx->lastSwapAge = swapAge;
r128ctx->dirty |= R128_UPDATE_CONTEXT;
r128ctx->dirty_context |= R128_CTX_ALL_DIRTY;
R128CCE_SUBMIT_PACKETS();
UNLOCK_HARDWARE(r128ctx);
}
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