2 * Enhanced MetaFile driver BitBlt functions
4 * Copyright 2002 Huw D M Davies for CodeWeavers
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "enhmetafiledrv.h"
28 #include "wine/debug.h"
30 BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
35 emr.emr.iType = EMR_BITBLT;
36 emr.emr.nSize = sizeof(emr);
37 emr.rclBounds.left = dst->log_x;
38 emr.rclBounds.top = dst->log_y;
39 emr.rclBounds.right = dst->log_x + dst->log_width - 1;
40 emr.rclBounds.bottom = dst->log_y + dst->log_height - 1;
41 emr.xDest = dst->log_x;
42 emr.yDest = dst->log_y;
43 emr.cxDest = dst->log_width;
44 emr.cyDest = dst->log_height;
48 emr.xformSrc.eM11 = 1.0;
49 emr.xformSrc.eM12 = 0.0;
50 emr.xformSrc.eM21 = 0.0;
51 emr.xformSrc.eM22 = 1.0;
52 emr.xformSrc.eDx = 0.0;
53 emr.xformSrc.eDy = 0.0;
61 ret = EMFDRV_WriteRecord( dev, &emr.emr );
63 EMFDRV_UpdateBBox( dev, &emr.rclBounds );
67 BOOL CDECL EMFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst,
68 PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop )
78 LPBITMAPINFOHEADER lpBmiH;
79 HBITMAP hBitmap = NULL;
82 if (devSrc->funcs == devDst->funcs) return FALSE; /* can't use a metafile DC as source */
84 if (src->log_width == dst->log_width && src->log_height == dst->log_height)
87 emrSize = sizeof(EMRBITBLT);
91 emrType = EMR_STRETCHBLT;
92 emrSize = sizeof(EMRSTRETCHBLT);
95 hBitmap = GetCurrentObject(devSrc->hdc, OBJ_BITMAP);
97 if(sizeof(BITMAP) != GetObjectW(hBitmap, sizeof(BITMAP), &BM))
100 nBPP = BM.bmPlanes * BM.bmBitsPixel;
101 if(nBPP > 8) nBPP = 24; /* FIXME Can't get 16bpp to work for some reason */
102 bitsSize = DIB_GetDIBWidthBytes(BM.bmWidth, nBPP) * BM.bmHeight;
103 bmiSize = sizeof(BITMAPINFOHEADER) +
104 (nBPP <= 8 ? 1 << nBPP : 0) * sizeof(RGBQUAD);
106 size = emrSize + bmiSize + bitsSize;
108 pEMR = HeapAlloc(GetProcessHeap(), 0, size);
109 if (!pEMR) return FALSE;
112 pEMR->emr.iType = emrType;
113 pEMR->emr.nSize = size;
114 pEMR->rclBounds.left = dst->log_x;
115 pEMR->rclBounds.top = dst->log_y;
116 pEMR->rclBounds.right = dst->log_x + dst->log_width - 1;
117 pEMR->rclBounds.bottom = dst->log_y + dst->log_height - 1;
118 pEMR->xDest = dst->log_x;
119 pEMR->yDest = dst->log_y;
120 pEMR->cxDest = dst->log_width;
121 pEMR->cyDest = dst->log_height;
123 pEMR->xSrc = src->log_x;
124 pEMR->ySrc = src->log_y;
125 GetWorldTransform(devSrc->hdc, &pEMR->xformSrc);
126 pEMR->crBkColorSrc = GetBkColor(devSrc->hdc);
127 pEMR->iUsageSrc = DIB_RGB_COLORS;
128 pEMR->offBmiSrc = emrSize;
129 pEMR->offBitsSrc = emrSize + bmiSize;
130 pEMR->cbBmiSrc = bmiSize;
131 pEMR->cbBitsSrc = bitsSize;
132 if (emrType == EMR_STRETCHBLT)
134 PEMRSTRETCHBLT pEMRStretch = (PEMRSTRETCHBLT)pEMR;
135 pEMRStretch->cxSrc = src->log_width;
136 pEMRStretch->cySrc = src->log_height;
139 /* Initialize BITMAPINFO structure */
140 lpBmiH = (LPBITMAPINFOHEADER)((BYTE*)pEMR + pEMR->offBmiSrc);
142 lpBmiH->biSize = sizeof(BITMAPINFOHEADER);
143 lpBmiH->biWidth = BM.bmWidth;
144 lpBmiH->biHeight = BM.bmHeight;
145 lpBmiH->biPlanes = BM.bmPlanes;
146 lpBmiH->biBitCount = nBPP;
147 /* Assume the bitmap isn't compressed and set the BI_RGB flag. */
148 lpBmiH->biCompression = BI_RGB;
149 lpBmiH->biSizeImage = bitsSize;
150 lpBmiH->biYPelsPerMeter = 0;
151 lpBmiH->biXPelsPerMeter = 0;
152 lpBmiH->biClrUsed = nBPP <= 8 ? 1 << nBPP : 0;
153 /* Set biClrImportant to 0, indicating that all of the
154 device colors are important. */
155 lpBmiH->biClrImportant = 0;
157 /* Initialize bitmap bits */
158 if (GetDIBits(devSrc->hdc, hBitmap, 0, (UINT)lpBmiH->biHeight,
159 (BYTE*)pEMR + pEMR->offBitsSrc,
160 (LPBITMAPINFO)lpBmiH, DIB_RGB_COLORS))
162 ret = EMFDRV_WriteRecord(devDst, (EMR*)pEMR);
163 if (ret) EMFDRV_UpdateBBox(devDst, &(pEMR->rclBounds));
168 HeapFree( GetProcessHeap(), 0, pEMR);
172 INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
173 INT heightDst, INT xSrc, INT ySrc,
174 INT widthSrc, INT heightSrc,
175 const void *bits, const BITMAPINFO *info,
176 UINT wUsage, DWORD dwRop )
178 EMRSTRETCHDIBITS *emr;
180 UINT bmi_size=0, bits_size, emr_size;
182 bits_size = DIB_GetDIBImageBytes(info->bmiHeader.biWidth,
183 info->bmiHeader.biHeight,
184 info->bmiHeader.biBitCount);
186 /* calculate the size of the colour table */
187 bmi_size = bitmap_info_size(info, wUsage);
189 emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + bits_size;
190 emr = HeapAlloc(GetProcessHeap(), 0, emr_size );
193 /* write a bitmap info header (with colours) to the record */
194 memcpy( &emr[1], info, bmi_size);
196 /* write bitmap bits to the record */
197 memcpy ( ( (BYTE *) (&emr[1]) ) + bmi_size, bits, bits_size);
199 /* fill in the EMR header at the front of our piece of memory */
200 emr->emr.iType = EMR_STRETCHDIBITS;
201 emr->emr.nSize = emr_size;
205 emr->cxDest = widthDst;
206 emr->cyDest = heightDst;
208 emr->xSrc = xSrc; /* FIXME: only save the piece of the bitmap needed */
211 emr->iUsageSrc = wUsage;
212 emr->offBmiSrc = sizeof (EMRSTRETCHDIBITS);
213 emr->cbBmiSrc = bmi_size;
214 emr->offBitsSrc = emr->offBmiSrc + bmi_size;
215 emr->cbBitsSrc = bits_size;
217 emr->cxSrc = widthSrc;
218 emr->cySrc = heightSrc;
220 emr->rclBounds.left = xDst;
221 emr->rclBounds.top = yDst;
222 emr->rclBounds.right = xDst + widthDst;
223 emr->rclBounds.bottom = yDst + heightDst;
225 /* save the record we just created */
226 ret = EMFDRV_WriteRecord( dev, &emr->emr );
228 EMFDRV_UpdateBBox( dev, &emr->rclBounds );
230 HeapFree(GetProcessHeap(), 0, emr);
232 return ret ? heightSrc : GDI_ERROR;
235 INT CDECL EMFDRV_SetDIBitsToDevice(
236 PHYSDEV dev, INT xDst, INT yDst, DWORD width, DWORD height,
237 INT xSrc, INT ySrc, UINT startscan, UINT lines,
238 LPCVOID bits, const BITMAPINFO *info, UINT wUsage )
240 EMRSETDIBITSTODEVICE* pEMR;
241 DWORD size, bmiSize, bitsSize;
243 bmiSize = bitmap_info_size(info, wUsage);
244 bitsSize = DIB_GetDIBImageBytes( info->bmiHeader.biWidth,
245 info->bmiHeader.biHeight,
246 info->bmiHeader.biBitCount );
247 size = sizeof(EMRSETDIBITSTODEVICE) + bmiSize + bitsSize;
249 pEMR = HeapAlloc(GetProcessHeap(), 0, size);
252 pEMR->emr.iType = EMR_SETDIBITSTODEVICE;
253 pEMR->emr.nSize = size;
254 pEMR->rclBounds.left = xDst;
255 pEMR->rclBounds.top = yDst;
256 pEMR->rclBounds.right = xDst + width - 1;
257 pEMR->rclBounds.bottom = yDst + height - 1;
263 pEMR->cySrc = height;
264 pEMR->offBmiSrc = sizeof(EMRSETDIBITSTODEVICE);
265 pEMR->cbBmiSrc = bmiSize;
266 pEMR->offBitsSrc = sizeof(EMRSETDIBITSTODEVICE) + bmiSize;
267 pEMR->cbBitsSrc = bitsSize;
268 pEMR->iUsageSrc = wUsage;
269 pEMR->iStartScan = startscan;
270 pEMR->cScans = lines;
271 memcpy((BYTE*)pEMR + pEMR->offBmiSrc, info, bmiSize);
272 memcpy((BYTE*)pEMR + pEMR->offBitsSrc, bits, bitsSize);
274 if (EMFDRV_WriteRecord(dev, (EMR*)pEMR))
275 EMFDRV_UpdateBBox(dev, &(pEMR->rclBounds));
277 HeapFree( GetProcessHeap(), 0, pEMR);