xserver-multidpi/glamor/glamor_polyfillrect.c
Eric Anholt 95d4a5a6ab glamor: Enable fill acceleration and flip opposite for pixmaps too.
Here's my theory for the flipping: It doesn't really matter which
orientation we store the pixmaps if we don't scan them out.  We have
to flip coordinates for the window system framebuffer.  Doing so for
everything else makes things consistent.  I'm not sure how this will
interact with future GLX integration, though.
2011-09-26 16:46:32 +08:00

135 lines
3.5 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:
* Eric Anholt <eric@anholt.net>
*
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "glamor_priv.h"
/** @file glamor_fillspans.c
*
* GC PolyFillRect implementation, taken straight from fb_fill.c
*/
void
glamor_poly_fill_rect(DrawablePtr drawable,
GCPtr gc,
int nrect,
xRectangle *prect)
{
RegionPtr clip = fbGetCompositeClip(gc);
register BoxPtr box;
BoxPtr pextent;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1, fullY2;
int partX1, partX2, partY1, partY2;
int xorg, yorg;
int n;
if (gc->fillStyle != FillSolid)
goto fail;
xorg = drawable->x;
yorg = drawable->y;
pextent = REGION_EXTENTS(gc->pScreen, clip);
extentX1 = pextent->x1;
extentY1 = pextent->y1;
extentX2 = pextent->x2;
extentY2 = pextent->y2;
while (nrect--)
{
fullX1 = prect->x + xorg;
fullY1 = prect->y + yorg;
fullX2 = fullX1 + (int)prect->width;
fullY2 = fullY1 + (int)prect->height;
prect++;
if (fullX1 < extentX1)
fullX1 = extentX1;
if (fullY1 < extentY1)
fullY1 = extentY1;
if (fullX2 > extentX2)
fullX2 = extentX2;
if (fullY2 > extentY2)
fullY2 = extentY2;
if ((fullX1 >= fullX2) || (fullY1 >= fullY2))
continue;
n = REGION_NUM_RECTS(clip);
if (n == 1) {
glamor_fill(drawable,
gc,
fullX1, fullY1, fullX2-fullX1, fullY2-fullY1);
} else {
box = REGION_RECTS(clip);
/* clip the rectangle to each box in the clip region
* this is logically equivalent to calling Intersect()
*/
while (n--) {
partX1 = box->x1;
if (partX1 < fullX1)
partX1 = fullX1;
partY1 = box->y1;
if (partY1 < fullY1)
partY1 = fullY1;
partX2 = box->x2;
if (partX2 > fullX2)
partX2 = fullX2;
partY2 = box->y2;
if (partY2 > fullY2)
partY2 = fullY2;
box++;
if (partX1 < partX2 && partY1 < partY2)
glamor_fill(drawable, gc,
partX1, partY1,
partX2 - partX1, partY2 - partY1);
}
}
}
return;
fail:
glamor_fallback("glamor_poly_fill_rect() to %p (%c)\n",
drawable, glamor_get_drawable_location(drawable));
if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
if (glamor_prepare_access_gc(gc)) {
fbPolyFillRect(drawable, gc, nrect, prect );
glamor_finish_access_gc(gc);
}
glamor_finish_access(drawable);
}
}