xserver-multidpi/glamor/glamor_triangles.c
Eric Anholt 93f1824a0b glamor: Rely on nested mappings to handle src==dst and !prepare bugs.
Now that the core deals with that for us, we can avoid all this extra
carefulness.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
2014-03-17 14:30:56 -07:00

75 lines
2.7 KiB
C

/*
* Copyright © 2009 Intel Corporation
* Copyright © 1998 Keith Packard
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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:
* Zhigang Gong <zhigang.gong@gmail.com>
*
*/
#include "glamor_priv.h"
static Bool
_glamor_triangles(CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris,
Bool fallback)
{
if (!fallback && glamor_ddx_fallback_check_pixmap(pDst->pDrawable)
&& (!pSrc->pDrawable
|| glamor_ddx_fallback_check_pixmap(pSrc->pDrawable)))
return FALSE;
if (glamor_prepare_access_picture(pDst, GLAMOR_ACCESS_RW) &&
glamor_prepare_access_picture(pSrc, GLAMOR_ACCESS_RO)) {
fbTriangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, ntris, tris);
}
glamor_finish_access_picture(pSrc);
glamor_finish_access_picture(pDst);
return TRUE;
}
void
glamor_triangles(CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris)
{
_glamor_triangles(op, pSrc, pDst, maskFormat,
xSrc, ySrc, ntris, tris, TRUE);
}
Bool
glamor_triangles_nf(CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris)
{
return _glamor_triangles(op, pSrc, pDst, maskFormat,
xSrc, ySrc, ntris, tris, FALSE);
}