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, INT left, INT top,
31 INT width, INT height, DWORD rop )
36 emr.emr.iType = EMR_BITBLT;
37 emr.emr.nSize = sizeof(emr);
38 emr.rclBounds.left = left;
39 emr.rclBounds.top = top;
40 emr.rclBounds.right = left + width - 1;
41 emr.rclBounds.bottom = top + height - 1;
49 emr.xformSrc.eM11 = 1.0;
50 emr.xformSrc.eM12 = 0.0;
51 emr.xformSrc.eM21 = 0.0;
52 emr.xformSrc.eM22 = 1.0;
53 emr.xformSrc.eDx = 0.0;
54 emr.xformSrc.eDy = 0.0;
62 ret = EMFDRV_WriteRecord( dev, &emr.emr );
64 EMFDRV_UpdateBBox( dev, &emr.rclBounds );
68 /* Utilitarian function used by EMFDRV_BitBlt and EMFDRV_StretchBlt */
70 static BOOL EMFDRV_BitBlockTransfer(
71 PHYSDEV devDst, INT xDst, INT yDst, INT widthDst, INT heightDst,
72 PHYSDEV devSrc, INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, DWORD rop,
83 LPBITMAPINFOHEADER lpBmiH;
84 EMFDRV_PDEVICE* physDevSrc = (EMFDRV_PDEVICE*)devSrc;
85 HBITMAP hBitmap = NULL;
87 if (emrType == EMR_BITBLT)
88 emrSize = sizeof(EMRBITBLT);
89 else if (emrType == EMR_STRETCHBLT)
90 emrSize = sizeof(EMRSTRETCHBLT);
94 hBitmap = GetCurrentObject(physDevSrc->hdc, OBJ_BITMAP);
96 if(sizeof(BITMAP) != GetObjectW(hBitmap, sizeof(BITMAP), &BM))
99 nBPP = BM.bmPlanes * BM.bmBitsPixel;
100 if(nBPP > 8) nBPP = 24; /* FIXME Can't get 16bpp to work for some reason */
101 bitsSize = DIB_GetDIBWidthBytes(BM.bmWidth, nBPP) * BM.bmHeight;
102 bmiSize = sizeof(BITMAPINFOHEADER) +
103 (nBPP <= 8 ? 1 << nBPP : 0) * sizeof(RGBQUAD);
105 size = emrSize + bmiSize + bitsSize;
107 pEMR = HeapAlloc(GetProcessHeap(), 0, size);
108 if (!pEMR) return FALSE;
111 pEMR->emr.iType = emrType;
112 pEMR->emr.nSize = size;
113 pEMR->rclBounds.left = xDst;
114 pEMR->rclBounds.top = yDst;
115 pEMR->rclBounds.right = xDst + widthDst - 1;
116 pEMR->rclBounds.bottom = yDst + heightDst - 1;
119 pEMR->cxDest = widthDst;
120 pEMR->cyDest = heightDst;
124 GetWorldTransform(physDevSrc->hdc, &pEMR->xformSrc);
125 pEMR->crBkColorSrc = GetBkColor(physDevSrc->hdc);
126 pEMR->iUsageSrc = DIB_RGB_COLORS;
127 pEMR->offBmiSrc = emrSize;
128 pEMR->offBitsSrc = emrSize + bmiSize;
129 pEMR->cbBmiSrc = bmiSize;
130 pEMR->cbBitsSrc = bitsSize;
131 if (emrType == EMR_STRETCHBLT)
133 PEMRSTRETCHBLT pEMRStretch = (PEMRSTRETCHBLT)pEMR;
134 pEMRStretch->cxSrc = widthSrc;
135 pEMRStretch->cySrc = heightSrc;
138 /* Initialize BITMAPINFO structure */
139 lpBmiH = (LPBITMAPINFOHEADER)((BYTE*)pEMR + pEMR->offBmiSrc);
141 lpBmiH->biSize = sizeof(BITMAPINFOHEADER);
142 lpBmiH->biWidth = BM.bmWidth;
143 lpBmiH->biHeight = BM.bmHeight;
144 lpBmiH->biPlanes = BM.bmPlanes;
145 lpBmiH->biBitCount = nBPP;
146 /* Assume the bitmap isn't compressed and set the BI_RGB flag. */
147 lpBmiH->biCompression = BI_RGB;
148 lpBmiH->biSizeImage = bitsSize;
149 lpBmiH->biYPelsPerMeter = 0;
150 lpBmiH->biXPelsPerMeter = 0;
151 lpBmiH->biClrUsed = nBPP <= 8 ? 1 << nBPP : 0;
152 /* Set biClrImportant to 0, indicating that all of the
153 device colors are important. */
154 lpBmiH->biClrImportant = 0;
156 /* Initialize bitmap bits */
157 if (GetDIBits(physDevSrc->hdc, hBitmap, 0, (UINT)lpBmiH->biHeight,
158 (BYTE*)pEMR + pEMR->offBitsSrc,
159 (LPBITMAPINFO)lpBmiH, DIB_RGB_COLORS))
161 ret = EMFDRV_WriteRecord(devDst, (EMR*)pEMR);
162 if (ret) EMFDRV_UpdateBBox(devDst, &(pEMR->rclBounds));
167 HeapFree( GetProcessHeap(), 0, pEMR);
171 BOOL CDECL EMFDRV_BitBlt(
172 PHYSDEV devDst, INT xDst, INT yDst, INT width, INT height,
173 PHYSDEV devSrc, INT xSrc, INT ySrc, DWORD rop)
175 return EMFDRV_BitBlockTransfer( devDst, xDst, yDst, width, height,
176 devSrc, xSrc, ySrc, width, height,
180 BOOL CDECL EMFDRV_StretchBlt(
181 PHYSDEV devDst, INT xDst, INT yDst, INT widthDst, INT heightDst,
182 PHYSDEV devSrc, INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, DWORD rop )
184 return EMFDRV_BitBlockTransfer( devDst, xDst, yDst, widthDst, heightDst,
185 devSrc, xSrc, ySrc, widthSrc, heightSrc,
186 rop, EMR_STRETCHBLT );
189 INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
190 INT heightDst, INT xSrc, INT ySrc,
191 INT widthSrc, INT heightSrc,
192 const void *bits, const BITMAPINFO *info,
193 UINT wUsage, DWORD dwRop )
195 EMRSTRETCHDIBITS *emr;
197 UINT bmi_size=0, bits_size, emr_size;
199 bits_size = DIB_GetDIBImageBytes(info->bmiHeader.biWidth,
200 info->bmiHeader.biHeight,
201 info->bmiHeader.biBitCount);
203 /* calculate the size of the colour table */
204 bmi_size = bitmap_info_size(info, wUsage);
206 emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + bits_size;
207 emr = HeapAlloc(GetProcessHeap(), 0, emr_size );
210 /* write a bitmap info header (with colours) to the record */
211 memcpy( &emr[1], info, bmi_size);
213 /* write bitmap bits to the record */
214 memcpy ( ( (BYTE *) (&emr[1]) ) + bmi_size, bits, bits_size);
216 /* fill in the EMR header at the front of our piece of memory */
217 emr->emr.iType = EMR_STRETCHDIBITS;
218 emr->emr.nSize = emr_size;
222 emr->cxDest = widthDst;
223 emr->cyDest = heightDst;
225 emr->xSrc = xSrc; /* FIXME: only save the piece of the bitmap needed */
228 emr->iUsageSrc = wUsage;
229 emr->offBmiSrc = sizeof (EMRSTRETCHDIBITS);
230 emr->cbBmiSrc = bmi_size;
231 emr->offBitsSrc = emr->offBmiSrc + bmi_size;
232 emr->cbBitsSrc = bits_size;
234 emr->cxSrc = widthSrc;
235 emr->cySrc = heightSrc;
237 emr->rclBounds.left = xDst;
238 emr->rclBounds.top = yDst;
239 emr->rclBounds.right = xDst + widthDst;
240 emr->rclBounds.bottom = yDst + heightDst;
242 /* save the record we just created */
243 ret = EMFDRV_WriteRecord( dev, &emr->emr );
245 EMFDRV_UpdateBBox( dev, &emr->rclBounds );
247 HeapFree(GetProcessHeap(), 0, emr);
249 return ret ? heightSrc : GDI_ERROR;
252 INT CDECL EMFDRV_SetDIBitsToDevice(
253 PHYSDEV dev, INT xDst, INT yDst, DWORD width, DWORD height,
254 INT xSrc, INT ySrc, UINT startscan, UINT lines,
255 LPCVOID bits, const BITMAPINFO *info, UINT wUsage )
257 EMRSETDIBITSTODEVICE* pEMR;
258 DWORD size, bmiSize, bitsSize;
260 bmiSize = bitmap_info_size(info, wUsage);
261 bitsSize = DIB_GetDIBImageBytes( info->bmiHeader.biWidth,
262 info->bmiHeader.biHeight,
263 info->bmiHeader.biBitCount );
264 size = sizeof(EMRSETDIBITSTODEVICE) + bmiSize + bitsSize;
266 pEMR = HeapAlloc(GetProcessHeap(), 0, size);
269 pEMR->emr.iType = EMR_SETDIBITSTODEVICE;
270 pEMR->emr.nSize = size;
271 pEMR->rclBounds.left = xDst;
272 pEMR->rclBounds.top = yDst;
273 pEMR->rclBounds.right = xDst + width - 1;
274 pEMR->rclBounds.bottom = yDst + height - 1;
280 pEMR->cySrc = height;
281 pEMR->offBmiSrc = sizeof(EMRSETDIBITSTODEVICE);
282 pEMR->cbBmiSrc = bmiSize;
283 pEMR->offBitsSrc = sizeof(EMRSETDIBITSTODEVICE) + bmiSize;
284 pEMR->cbBitsSrc = bitsSize;
285 pEMR->iUsageSrc = wUsage;
286 pEMR->iStartScan = startscan;
287 pEMR->cScans = lines;
288 memcpy((BYTE*)pEMR + pEMR->offBmiSrc, info, bmiSize);
289 memcpy((BYTE*)pEMR + pEMR->offBitsSrc, bits, bitsSize);
291 if (EMFDRV_WriteRecord(dev, (EMR*)pEMR))
292 EMFDRV_UpdateBBox(dev, &(pEMR->rclBounds));
294 HeapFree( GetProcessHeap(), 0, pEMR);