185 lines
5.1 KiB
C
185 lines
5.1 KiB
C
/*
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*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
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*
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*Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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*"Software"), to deal in the Software without restriction, including
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*without limitation the rights to use, copy, modify, merge, publish,
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*distribute, sublicense, and/or sell copies of the Software, and to
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*permit persons to whom the Software is furnished to do so, subject to
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*the following conditions:
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*
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*The above copyright notice and this permission notice shall be
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*included in all copies or substantial portions of the Software.
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*
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*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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*NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
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*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*Except as contained in this notice, the name of the XFree86 Project
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*shall not be used in advertising or otherwise to promote the sale, use
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*or other dealings in this Software without prior written authorization
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*from the XFree86 Project.
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*
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* Authors: Harold L Hunt II
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* Alan Hourihane <alanh@fairlite.demon.co.uk>
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*/
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#ifdef HAVE_XWIN_CONFIG_H
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#include <xwin-config.h>
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#endif
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#include "win.h"
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/* See Porting Layer Definition - p. 55 */
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void
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winGetSpansNativeGDI (DrawablePtr pDrawable,
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int nMax,
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DDXPointPtr pPoints,
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int *piWidths,
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int iSpans,
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char *pDsts)
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{
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PixmapPtr pPixmap = NULL;
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winPrivPixmapPtr pPixmapPriv = NULL;
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int iSpan;
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DDXPointPtr pPoint = NULL;
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int *piWidth = NULL;
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char *pDst = pDsts;
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HBITMAP hbmpWindow, hbmpOrig, hbmpOrig1;
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BYTE *pbWindow = NULL;
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HDC hdcMem, hdcMem1;
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ScreenPtr pScreen = pDrawable->pScreen;
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winScreenPriv(pScreen);
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/* Branch on the drawable type */
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switch (pDrawable->type)
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{
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case DRAWABLE_PIXMAP:
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#if 0
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ErrorF ("winGetSpans - DRAWABLE_PIXMAP %08x\n",
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pDrawable);
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#endif
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pPixmap = (PixmapPtr) pDrawable;
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pPixmapPriv = winGetPixmapPriv (pPixmap);
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/* Open a memory HDC */
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hdcMem1 = CreateCompatibleDC (NULL);
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hdcMem = CreateCompatibleDC (NULL);
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/* Select the drawable pixmap into a DC */
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hbmpOrig1 = SelectObject (hdcMem1, pPixmapPriv->hBitmap);
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if (hbmpOrig1 == NULL)
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FatalError ("winGetSpans - DRAWABLE_PIXMAP - SelectObject () "
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"failed on pPixmapPriv->hBitmap\n");
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/* Loop through spans */
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for (iSpan = 0; iSpan < iSpans; ++iSpan)
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{
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pPoint = pPoints + iSpan;
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piWidth = piWidths + iSpan;
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hbmpWindow = winCreateDIBNativeGDI (*piWidth, 1,
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pDrawable->depth,
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&pbWindow,
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NULL);
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hbmpOrig = SelectObject (hdcMem, hbmpWindow);
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/* Transfer the window bits to the window bitmap */
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BitBlt (hdcMem,
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0, 0,
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*piWidth, 1,
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hdcMem1,
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pPoint->x, pPoint->y,
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SRCCOPY);
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memcpy (pDst,
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(char*) pbWindow,
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PixmapBytePad (*piWidth, pDrawable->depth));
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/* Pop the window bitmap out of the HDC and delete the bitmap */
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SelectObject (hdcMem, hbmpOrig);
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DeleteObject (hbmpWindow);
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#if 0
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ErrorF ("(%dx%dx%d) (%d,%d) w: %d\n",
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pDrawable->width, pDrawable->height, pDrawable->depth,
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pPoint->x, pPoint->y, *piWidth);
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#endif
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/* Calculate offset of next bit destination */
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pDst += PixmapBytePad (*piWidth, pDrawable->depth);
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}
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/* Pop the pixmap's bitmap out of the HDC */
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SelectObject (hdcMem1, hbmpOrig1);
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/* Delete the HDCs */
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DeleteDC (hdcMem1);
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DeleteDC (hdcMem);
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break;
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case DRAWABLE_WINDOW:
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#if 0
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ErrorF ("winGetSpans - DRAWABLE_WINDOW\n");
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#endif
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/* Open a memory HDC */
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hdcMem = CreateCompatibleDC (NULL);
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/* Loop through spans */
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for (iSpan = 0; iSpan < iSpans; ++iSpan)
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{
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pPoint = pPoints + iSpan;
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piWidth = piWidths + iSpan;
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hbmpWindow = winCreateDIBNativeGDI (*piWidth, 1,
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pDrawable->depth,
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&pbWindow,
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NULL);
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hbmpOrig = SelectObject (hdcMem, hbmpWindow);
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/* Transfer the window bits to the window bitmap */
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BitBlt (hdcMem,
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0, 0,
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*piWidth, 1,
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pScreenPriv->hdcScreen,
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pPoint->x, pPoint->y,
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SRCCOPY);
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memcpy (pDst,
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(char*) pbWindow,
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PixmapBytePad (*piWidth, pDrawable->depth));
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/* Pop the window bitmap out of the HDC */
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SelectObject (hdcMem, hbmpOrig);
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DeleteObject (hbmpWindow);
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#if 0
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ErrorF ("(%dx%dx%d) (%d,%d) w: %d\n",
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pDrawable->width, pDrawable->height, pDrawable->depth,
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pPoint->x, pPoint->y, *piWidth);
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#endif
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/* Calculate offset of next bit destination */
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pDst += PixmapBytePad (*piWidth, pDrawable->depth);
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}
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/* Delete the window bitmap */
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DeleteDC (hdcMem);
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break;
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default:
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FatalError ("winGetSpans - Unknown drawable type\n");
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break;
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}
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}
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