| 1 | /* |
| 2 | *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. |
| 3 | * |
| 4 | *Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | *"Software"), to deal in the Software without restriction, including |
| 7 | *without limitation the rights to use, copy, modify, merge, publish, |
| 8 | *distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | *permit persons to whom the Software is furnished to do so, subject to |
| 10 | *the following conditions: |
| 11 | * |
| 12 | *The above copyright notice and this permission notice shall be |
| 13 | *included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 18 | *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR |
| 19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | *Except as contained in this notice, the name of the XFree86 Project |
| 24 | *shall not be used in advertising or otherwise to promote the sale, use |
| 25 | *or other dealings in this Software without prior written authorization |
| 26 | *from the XFree86 Project. |
| 27 | * |
| 28 | * Authors: Harold L Hunt II |
| 29 | * Alan Hourihane <alanh@fairlite.demon.co.uk> |
| 30 | */ |
| 31 | |
| 32 | #ifdef HAVE_XWIN_CONFIG_H |
| 33 | #include <xwin-config.h> |
| 34 | #endif |
| 35 | #include "win.h" |
| 36 | |
| 37 | /* See Porting Layer Definition - p. 55 */ |
| 38 | void |
| 39 | winGetSpansNativeGDI(DrawablePtr pDrawable, |
| 40 | int nMax, |
| 41 | DDXPointPtr pPoints, |
| 42 | int *piWidths, int iSpans, char *pDsts) |
| 43 | { |
| 44 | PixmapPtr pPixmap = NULL; |
| 45 | winPrivPixmapPtr pPixmapPriv = NULL; |
| 46 | int iSpan; |
| 47 | DDXPointPtr pPoint = NULL; |
| 48 | int *piWidth = NULL; |
| 49 | char *pDst = pDsts; |
| 50 | HBITMAP hbmpWindow, hbmpOrig, hbmpOrig1; |
| 51 | BYTE *pbWindow = NULL; |
| 52 | HDC hdcMem, hdcMem1; |
| 53 | ScreenPtr pScreen = pDrawable->pScreen; |
| 54 | |
| 55 | winScreenPriv(pScreen); |
| 56 | |
| 57 | /* Branch on the drawable type */ |
| 58 | switch (pDrawable->type) { |
| 59 | case DRAWABLE_PIXMAP: |
| 60 | #if 0 |
| 61 | ErrorF("winGetSpans - DRAWABLE_PIXMAP %08x\n", pDrawable); |
| 62 | #endif |
| 63 | |
| 64 | pPixmap = (PixmapPtr) pDrawable; |
| 65 | pPixmapPriv = winGetPixmapPriv(pPixmap); |
| 66 | |
| 67 | /* Open a memory HDC */ |
| 68 | hdcMem1 = CreateCompatibleDC(NULL); |
| 69 | hdcMem = CreateCompatibleDC(NULL); |
| 70 | |
| 71 | /* Select the drawable pixmap into a DC */ |
| 72 | hbmpOrig1 = SelectObject(hdcMem1, pPixmapPriv->hBitmap); |
| 73 | |
| 74 | if (hbmpOrig1 == NULL) |
| 75 | FatalError("winGetSpans - DRAWABLE_PIXMAP - SelectObject () " |
| 76 | "failed on pPixmapPriv->hBitmap\n"); |
| 77 | |
| 78 | /* Loop through spans */ |
| 79 | for (iSpan = 0; iSpan < iSpans; ++iSpan) { |
| 80 | pPoint = pPoints + iSpan; |
| 81 | piWidth = piWidths + iSpan; |
| 82 | |
| 83 | hbmpWindow = winCreateDIBNativeGDI(*piWidth, 1, |
| 84 | pDrawable->depth, |
| 85 | &pbWindow, NULL); |
| 86 | |
| 87 | hbmpOrig = SelectObject(hdcMem, hbmpWindow); |
| 88 | |
| 89 | /* Transfer the window bits to the window bitmap */ |
| 90 | BitBlt(hdcMem, |
| 91 | 0, 0, *piWidth, 1, hdcMem1, pPoint->x, pPoint->y, SRCCOPY); |
| 92 | |
| 93 | memcpy(pDst, |
| 94 | (char *) pbWindow, |
| 95 | PixmapBytePad(*piWidth, pDrawable->depth)); |
| 96 | |
| 97 | /* Pop the window bitmap out of the HDC and delete the bitmap */ |
| 98 | SelectObject(hdcMem, hbmpOrig); |
| 99 | DeleteObject(hbmpWindow); |
| 100 | |
| 101 | #if 0 |
| 102 | ErrorF("(%dx%dx%d) (%d,%d) w: %d\n", |
| 103 | pDrawable->width, pDrawable->height, pDrawable->depth, |
| 104 | pPoint->x, pPoint->y, *piWidth); |
| 105 | #endif |
| 106 | |
| 107 | /* Calculate offset of next bit destination */ |
| 108 | pDst += PixmapBytePad(*piWidth, pDrawable->depth); |
| 109 | } |
| 110 | |
| 111 | /* Pop the pixmap's bitmap out of the HDC */ |
| 112 | SelectObject(hdcMem1, hbmpOrig1); |
| 113 | |
| 114 | /* Delete the HDCs */ |
| 115 | DeleteDC(hdcMem1); |
| 116 | DeleteDC(hdcMem); |
| 117 | break; |
| 118 | |
| 119 | case DRAWABLE_WINDOW: |
| 120 | #if 0 |
| 121 | ErrorF("winGetSpans - DRAWABLE_WINDOW\n"); |
| 122 | #endif |
| 123 | |
| 124 | /* Open a memory HDC */ |
| 125 | hdcMem = CreateCompatibleDC(NULL); |
| 126 | |
| 127 | /* Loop through spans */ |
| 128 | for (iSpan = 0; iSpan < iSpans; ++iSpan) { |
| 129 | pPoint = pPoints + iSpan; |
| 130 | piWidth = piWidths + iSpan; |
| 131 | |
| 132 | hbmpWindow = winCreateDIBNativeGDI(*piWidth, 1, |
| 133 | pDrawable->depth, |
| 134 | &pbWindow, NULL); |
| 135 | |
| 136 | hbmpOrig = SelectObject(hdcMem, hbmpWindow); |
| 137 | |
| 138 | /* Transfer the window bits to the window bitmap */ |
| 139 | BitBlt(hdcMem, |
| 140 | 0, 0, |
| 141 | *piWidth, 1, |
| 142 | pScreenPriv->hdcScreen, pPoint->x, pPoint->y, SRCCOPY); |
| 143 | |
| 144 | memcpy(pDst, |
| 145 | (char *) pbWindow, |
| 146 | PixmapBytePad(*piWidth, pDrawable->depth)); |
| 147 | |
| 148 | /* Pop the window bitmap out of the HDC */ |
| 149 | SelectObject(hdcMem, hbmpOrig); |
| 150 | |
| 151 | DeleteObject(hbmpWindow); |
| 152 | |
| 153 | #if 0 |
| 154 | ErrorF("(%dx%dx%d) (%d,%d) w: %d\n", |
| 155 | pDrawable->width, pDrawable->height, pDrawable->depth, |
| 156 | pPoint->x, pPoint->y, *piWidth); |
| 157 | #endif |
| 158 | |
| 159 | /* Calculate offset of next bit destination */ |
| 160 | pDst += PixmapBytePad(*piWidth, pDrawable->depth); |
| 161 | } |
| 162 | |
| 163 | /* Delete the window bitmap */ |
| 164 | DeleteDC(hdcMem); |
| 165 | break; |
| 166 | |
| 167 | default: |
| 168 | FatalError("winGetSpans - Unknown drawable type\n"); |
| 169 | break; |
| 170 | } |
| 171 | } |