xserver-multidpi/hw/xgl/xglpixel.c
2004-11-05 13:26:07 +00:00

150 lines
3.5 KiB
C

/*
* Copyright © 2004 David Reveman
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the names of
* David Reveman not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* David Reveman makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: David Reveman <davidr@freedesktop.org>
*/
#include "xgl.h"
#include "fb.h"
Bool
xglSetPixels (DrawablePtr pDrawable,
char *src,
int stride,
int x,
int y,
int width,
int height,
BoxPtr pBox,
int nBox)
{
glitz_pixel_format_t format;
glitz_surface_t *surface;
FbBits *srcBits, *dstBits;
FbStride srcStride, dstStride;
BoxPtr pDstBox;
int nDstBox;
int dstXoff, dstYoff, dstBpp;
int x1, y1, x2, y2;
XGL_DRAWABLE_PIXMAP (pDrawable);
XGL_PIXMAP_PRIV (pPixmap);
if (!nBox)
return TRUE;
if (!xglSyncSurface (pDrawable))
return FALSE;
XGL_GET_DRAWABLE (pDrawable, surface, dstXoff, dstYoff);
if (!xglMapPixmapBits (pPixmap))
return FALSE;
dstBpp = pDrawable->bitsPerPixel;
srcBits = (FbBits *) src;
dstBits = (FbBits *) pPixmap->devPrivate.ptr;
srcStride = stride / sizeof (FbBits);
dstStride = pPixmapPriv->stride / sizeof (FbBits);
pDstBox = xalloc (nBox);
if (!pDstBox)
return FALSE;
nDstBox = 0;
while (nBox--)
{
x1 = x;
y1 = y;
x2 = x + width;
y2 = y + height;
if (x1 < pBox->x1)
x1 = pBox->x1;
if (y1 < pBox->y1)
y1 = pBox->y1;
if (x2 > pBox->x2)
x2 = pBox->x2;
if (y2 > pBox->y2)
y2 = pBox->y2;
if (x1 < x2 && y1 < y2)
{
fbBlt (srcBits + (y1 - y) * srcStride,
srcStride,
(x1 - x) * dstBpp,
dstBits + (y1 + dstYoff) * dstStride,
dstStride,
(x1 + dstXoff) * dstBpp,
(x2 - x1) * dstBpp,
y2 - y1,
GXcopy,
FB_ALLONES,
dstBpp,
FALSE,
FALSE);
pDstBox[nDstBox].x1 = x1;
pDstBox[nDstBox].y1 = y1;
pDstBox[nDstBox].x2 = x2;
pDstBox[nDstBox].y2 = y2;
nDstBox++;
}
pBox++;
}
xglUnmapPixmapBits (pPixmap);
format.masks = pPixmapPriv->pPixel->masks;
format.bytes_per_line = pPixmapPriv->stride;
format.scanline_order = XGL_INTERNAL_SCANLINE_ORDER;
pBox = pDstBox;
while (nDstBox--)
{
format.xoffset = pBox->x1 + dstXoff;
format.skip_lines = pBox->y1 + dstYoff;
glitz_set_pixels (surface,
pBox->x1 + dstXoff,
pBox->y1 + dstYoff,
pBox->x2 - pBox->x1,
pBox->y2 - pBox->y1,
&format,
pPixmapPriv->buffer);
pBox++;
}
xfree (pDstBox);
return TRUE;
}