2 * PostScript driver bitmap functions
4 * Copyright 1998 Huw D M Davies
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "wine/debug.h"
28 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
31 /* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned. */
32 inline static int get_dib_width_bytes( int width, int depth )
38 case 1: words = (width + 31) / 32; break;
39 case 4: words = (width + 7) / 8; break;
40 case 8: words = (width + 3) / 4; break;
42 case 16: words = (width + 1) / 2; break;
43 case 24: words = (width * 3 + 3)/4; break;
45 WARN("(%d): Unsupported depth\n", depth );
47 case 32: words = width; break;
52 /* get the bitmap info from either an INFOHEADER or COREHEADER bitmap */
53 static BOOL get_bitmap_info( const void *ptr, LONG *width, LONG *height, WORD *bpp, WORD *compr )
55 const BITMAPINFOHEADER *header = ptr;
57 switch(header->biSize)
59 case sizeof(BITMAPCOREHEADER):
61 const BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header;
62 *width = core->bcWidth;
63 *height = core->bcHeight;
64 *bpp = core->bcBitCount;
68 case sizeof(BITMAPINFOHEADER):
69 case sizeof(BITMAPV4HEADER):
70 case sizeof(BITMAPV5HEADER):
71 /* V4 and V5 structures are a superset of the INFOHEADER structure */
72 *width = header->biWidth;
73 *height = header->biHeight;
74 *bpp = header->biBitCount;
75 *compr = header->biCompression;
78 ERR("(%ld): unknown/wrong size for header\n", header->biSize );
84 /***************************************************************************
85 * PSDRV_WriteImageHeader
87 * Helper for PSDRV_StretchDIBits
90 * Uses level 2 PostScript
93 static BOOL PSDRV_WriteImageHeader(PSDRV_PDEVICE *physDev, const BITMAPINFO *info, INT xDst,
94 INT yDst, INT widthDst, INT heightDst,
95 INT widthSrc, INT heightSrc)
100 switch(info->bmiHeader.biBitCount) {
102 PSDRV_WriteIndexColorSpaceBegin(physDev, 255);
103 for(i = 0; i < 256; i++) {
104 map[i] = info->bmiColors[i].rgbRed |
105 info->bmiColors[i].rgbGreen << 8 |
106 info->bmiColors[i].rgbBlue << 16;
108 PSDRV_WriteRGB(physDev, map, 256);
109 PSDRV_WriteIndexColorSpaceEnd(physDev);
113 PSDRV_WriteIndexColorSpaceBegin(physDev, 15);
114 for(i = 0; i < 16; i++) {
115 map[i] = info->bmiColors[i].rgbRed |
116 info->bmiColors[i].rgbGreen << 8 |
117 info->bmiColors[i].rgbBlue << 16;
119 PSDRV_WriteRGB(physDev, map, 16);
120 PSDRV_WriteIndexColorSpaceEnd(physDev);
124 PSDRV_WriteIndexColorSpaceBegin(physDev, 1);
125 for(i = 0; i < 2; i++) {
126 map[i] = info->bmiColors[i].rgbRed |
127 info->bmiColors[i].rgbGreen << 8 |
128 info->bmiColors[i].rgbBlue << 16;
130 PSDRV_WriteRGB(physDev, map, 2);
131 PSDRV_WriteIndexColorSpaceEnd(physDev);
140 pscol.type = PSCOLOR_RGB;
141 pscol.value.rgb.r = pscol.value.rgb.g = pscol.value.rgb.b = 0.0;
142 PSDRV_WriteSetColor(physDev, &pscol);
147 FIXME("Not implemented yet\n");
152 PSDRV_WriteImageDict(physDev, info->bmiHeader.biBitCount, xDst, yDst,
153 widthDst, heightDst, widthSrc, heightSrc, NULL, FALSE);
158 /***************************************************************************
159 * PSDRV_WriteImageMaskHeader
161 * Helper for PSDRV_StretchDIBits
163 * We use the imagemask operator for 1bpp bitmaps since the output
164 * takes much less time for the printer to render.
167 * Uses level 2 PostScript
170 static BOOL PSDRV_WriteImageMaskHeader(PSDRV_PDEVICE *physDev, const BITMAPINFO *info, INT xDst,
171 INT yDst, INT widthDst, INT heightDst,
172 INT widthSrc, INT heightSrc)
175 PSCOLOR bkgnd, foregnd;
178 assert(info->bmiHeader.biBitCount == 1);
180 for(i = 0; i < 2; i++) {
181 map[i] = info->bmiColors[i].rgbRed |
182 info->bmiColors[i].rgbGreen << 8 |
183 info->bmiColors[i].rgbBlue << 16;
186 /* We'll write the mask with -ve polarity so that
187 the foregnd color corresponds to a bit equal to
190 PSDRV_CreateColor(physDev, &foregnd, map[0]);
191 PSDRV_CreateColor(physDev, &bkgnd, map[1]);
193 PSDRV_WriteGSave(physDev);
194 PSDRV_WriteNewPath(physDev);
195 PSDRV_WriteRectangle(physDev, xDst, yDst, widthDst, heightDst);
196 PSDRV_WriteSetColor(physDev, &bkgnd);
197 PSDRV_WriteFill(physDev);
198 PSDRV_WriteGRestore(physDev);
200 PSDRV_WriteSetColor(physDev, &foregnd);
201 PSDRV_WriteImageDict(physDev, 1, xDst, yDst, widthDst, heightDst,
202 widthSrc, heightSrc, NULL, TRUE);
207 static inline DWORD max_rle_size(DWORD size)
209 return size + (size + 127) / 128 + 1;
212 static inline DWORD max_ascii85_size(DWORD size)
214 return (size + 3) / 4 * 5;
217 /***************************************************************************
219 * PSDRV_StretchDIBits
222 * Doesn't work correctly if xSrc isn't byte aligned - this affects 1 and 4
224 * Compression not implemented.
226 INT PSDRV_StretchDIBits( PSDRV_PDEVICE *physDev, INT xDst, INT yDst, INT widthDst,
227 INT heightDst, INT xSrc, INT ySrc,
228 INT widthSrc, INT heightSrc, const void *bits,
229 const BITMAPINFO *info, UINT wUsage, DWORD dwRop )
231 LONG fullSrcWidth, fullSrcHeight;
233 WORD bpp, compression;
237 BYTE *dst_ptr, *bitmap, *rle, *ascii85;
238 DWORD rle_len, ascii85_len, bitmap_size;
240 TRACE("%p (%d,%d %dx%d) -> (%d,%d %dx%d)\n", physDev->hdc,
241 xSrc, ySrc, widthSrc, heightSrc, xDst, yDst, widthDst, heightDst);
243 if (!get_bitmap_info( info, &fullSrcWidth, &fullSrcHeight, &bpp, &compression )) return FALSE;
245 widthbytes = get_dib_width_bytes(fullSrcWidth, bpp);
247 TRACE("full size=%ldx%ld bpp=%d compression=%d rop=%08lx\n", fullSrcWidth,
248 fullSrcHeight, bpp, compression, dwRop);
251 if(compression != BI_RGB) {
252 FIXME("Compression not supported\n");
258 pt[1].x = xDst + widthDst;
259 pt[1].y = yDst + heightDst;
260 LPtoDP( physDev->hdc, pt, 2 );
263 widthDst = pt[1].x - pt[0].x;
264 heightDst = pt[1].y - pt[0].y;
269 PSDRV_SetClip(physDev);
270 PSDRV_WriteGSave(physDev);
272 /* Use imagemask rather than image */
273 PSDRV_WriteImageMaskHeader(physDev, info, xDst, yDst, widthDst, heightDst,
274 widthSrc, heightSrc);
276 src_ptr += (ySrc * widthbytes);
278 FIXME("This won't work...\n");
279 bitmap_size = heightSrc * ((widthSrc + 7) / 8);
280 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
281 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += ((widthSrc + 7) / 8))
282 memcpy(dst_ptr, src_ptr + xSrc / 8, (widthSrc + 7) / 8);
286 PSDRV_SetClip(physDev);
287 PSDRV_WriteGSave(physDev);
288 PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
289 widthSrc, heightSrc);
291 src_ptr += (ySrc * widthbytes);
293 FIXME("This won't work...\n");
294 bitmap_size = heightSrc * ((widthSrc + 1) / 2);
295 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
296 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += ((widthSrc + 1) / 2))
297 memcpy(dst_ptr, src_ptr + xSrc/2, (widthSrc+1)/2);
301 PSDRV_SetClip(physDev);
302 PSDRV_WriteGSave(physDev);
303 PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
304 widthSrc, heightSrc);
306 src_ptr += (ySrc * widthbytes);
307 bitmap_size = heightSrc * widthSrc;
308 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
309 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += widthSrc)
310 memcpy(dst_ptr, src_ptr + xSrc, widthSrc);
315 PSDRV_SetClip(physDev);
316 PSDRV_WriteGSave(physDev);
317 PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
318 widthSrc, heightSrc);
322 src_ptr += (ySrc * widthbytes);
323 bitmap_size = heightSrc * widthSrc * 2;
324 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
326 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
327 const WORD *words = (const WORD *)src_ptr + xSrc;
329 for(i = 0; i < widthSrc; i++) {
332 /* We want 0x0 -- 0x1f to map to 0x0 -- 0xff */
333 r = words[i] >> 10 & 0x1f;
335 g = words[i] >> 5 & 0x1f;
348 PSDRV_SetClip(physDev);
349 PSDRV_WriteGSave(physDev);
350 PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
351 widthSrc, heightSrc);
354 src_ptr += (ySrc * widthbytes);
355 bitmap_size = heightSrc * widthSrc * 3;
356 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
357 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
358 const BYTE *byte = src_ptr + xSrc * 3;
360 for(i = 0; i < widthSrc; i++) {
361 dst_ptr[0] = byte[i * 3 + 2];
362 dst_ptr[1] = byte[i * 3 + 1];
363 dst_ptr[2] = byte[i * 3];
370 PSDRV_SetClip(physDev);
371 PSDRV_WriteGSave(physDev);
372 PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
373 widthSrc, heightSrc);
376 src_ptr += (ySrc * widthbytes);
377 bitmap_size = heightSrc * widthSrc * 3;
378 dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
379 for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
380 const BYTE *byte = src_ptr + xSrc * 4;
382 for(i = 0; i < widthSrc; i++) {
383 dst_ptr[0] = byte[i * 4 + 2];
384 dst_ptr[1] = byte[i * 4 + 1];
385 dst_ptr[2] = byte[i * 4];
392 FIXME("Unsupported depth\n");
397 rle = HeapAlloc(GetProcessHeap(), 0, max_rle_size(bitmap_size));
398 rle_len = RLE_encode(bitmap, bitmap_size, rle);
399 HeapFree(GetProcessHeap(), 0, bitmap);
400 ascii85 = HeapAlloc(GetProcessHeap(), 0, max_ascii85_size(rle_len));
401 ascii85_len = ASCII85_encode(rle, rle_len, ascii85);
402 HeapFree(GetProcessHeap(), 0, rle);
403 PSDRV_WriteData(physDev, ascii85, ascii85_len);
404 HeapFree(GetProcessHeap(), 0, ascii85);
405 PSDRV_WriteSpool(physDev, "~>\n", 3);
406 PSDRV_WriteGRestore(physDev);
407 PSDRV_ResetClip(physDev);
408 return abs(heightSrc);