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/*
*Copyright (C) 1994-2000 The XFree86 Project, Inc. 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 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 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 XFREE86 PROJECT 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.
*
*Except as contained in this notice, the name of the XFree86 Project
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from the XFree86 Project.
*
* Authors: Harold L Hunt II
* Alan Hourihane <alanh@fairlite.demon.co.uk>
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
/* See Porting Layer Definition - p. 55 */
void
winGetSpansNativeGDI (DrawablePtr pDrawable,
int nMax,
DDXPointPtr pPoints,
int *piWidths,
int iSpans,
char *pDsts)
{
PixmapPtr pPixmap = NULL;
winPrivPixmapPtr pPixmapPriv = NULL;
int iSpan;
DDXPointPtr pPoint = NULL;
int *piWidth = NULL;
char *pDst = pDsts;
HBITMAP hbmpWindow, hbmpOrig, hbmpOrig1;
BYTE *pbWindow = NULL;
HDC hdcMem, hdcMem1;
ScreenPtr pScreen = pDrawable->pScreen;
winScreenPriv(pScreen);
/* Branch on the drawable type */
switch (pDrawable->type)
{
case DRAWABLE_PIXMAP:
#if 0
ErrorF ("winGetSpans - DRAWABLE_PIXMAP %08x\n",
pDrawable);
#endif
pPixmap = (PixmapPtr) pDrawable;
pPixmapPriv = winGetPixmapPriv (pPixmap);
/* Open a memory HDC */
hdcMem1 = CreateCompatibleDC (NULL);
hdcMem = CreateCompatibleDC (NULL);
/* Select the drawable pixmap into a DC */
hbmpOrig1 = SelectObject (hdcMem1, pPixmapPriv->hBitmap);
if (hbmpOrig1 == NULL)
FatalError ("winGetSpans - DRAWABLE_PIXMAP - SelectObject () "
"failed on pPixmapPriv->hBitmap\n");
/* Loop through spans */
for (iSpan = 0; iSpan < iSpans; ++iSpan)
{
pPoint = pPoints + iSpan;
piWidth = piWidths + iSpan;
hbmpWindow = winCreateDIBNativeGDI (*piWidth, 1,
pDrawable->depth,
&pbWindow,
NULL);
hbmpOrig = SelectObject (hdcMem, hbmpWindow);
/* Transfer the window bits to the window bitmap */
BitBlt (hdcMem,
0, 0,
*piWidth, 1,
hdcMem1,
pPoint->x, pPoint->y,
SRCCOPY);
memcpy (pDst,
(char*) pbWindow,
PixmapBytePad (*piWidth, pDrawable->depth));
/* Pop the window bitmap out of the HDC and delete the bitmap */
SelectObject (hdcMem, hbmpOrig);
DeleteObject (hbmpWindow);
#if 0
ErrorF ("(%dx%dx%d) (%d,%d) w: %d\n",
pDrawable->width, pDrawable->height, pDrawable->depth,
pPoint->x, pPoint->y, *piWidth);
#endif
/* Calculate offset of next bit destination */
pDst += PixmapBytePad (*piWidth, pDrawable->depth);
}
/* Pop the pixmap's bitmap out of the HDC */
SelectObject (hdcMem1, hbmpOrig1);
/* Delete the HDCs */
DeleteDC (hdcMem1);
DeleteDC (hdcMem);
break;
case DRAWABLE_WINDOW:
#if 0
ErrorF ("winGetSpans - DRAWABLE_WINDOW\n");
#endif
/* Open a memory HDC */
hdcMem = CreateCompatibleDC (NULL);
/* Loop through spans */
for (iSpan = 0; iSpan < iSpans; ++iSpan)
{
pPoint = pPoints + iSpan;
piWidth = piWidths + iSpan;
hbmpWindow = winCreateDIBNativeGDI (*piWidth, 1,
pDrawable->depth,
&pbWindow,
NULL);
hbmpOrig = SelectObject (hdcMem, hbmpWindow);
/* Transfer the window bits to the window bitmap */
BitBlt (hdcMem,
0, 0,
*piWidth, 1,
pScreenPriv->hdcScreen,
pPoint->x, pPoint->y,
SRCCOPY);
memcpy (pDst,
(char*) pbWindow,
PixmapBytePad (*piWidth, pDrawable->depth));
/* Pop the window bitmap out of the HDC */
SelectObject (hdcMem, hbmpOrig);
DeleteObject (hbmpWindow);
#if 0
ErrorF ("(%dx%dx%d) (%d,%d) w: %d\n",
pDrawable->width, pDrawable->height, pDrawable->depth,
pPoint->x, pPoint->y, *piWidth);
#endif
/* Calculate offset of next bit destination */
pDst += PixmapBytePad (*piWidth, pDrawable->depth);
}
/* Delete the window bitmap */
DeleteDC (hdcMem);
break;
case UNDRAWABLE_WINDOW:
FatalError ("winGetSpans - UNDRAWABLE_WINDOW\n");
break;
case DRAWABLE_BUFFER:
FatalError ("winGetSpans - DRAWABLE_BUFFER\n");
break;
default:
FatalError ("winGetSpans - Unknown drawable type\n");
break;
}
}
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