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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 static inline int get_dib_width_bytes( int width, int depth )
34 return ((width * depth + 31) / 8) & ~3;
38 /***************************************************************************
39 * PSDRV_WriteImageHeader
41 * Helper for PSDRV_PutImage
44 * Uses level 2 PostScript
47 static BOOL PSDRV_WriteImageHeader(PHYSDEV dev, const BITMAPINFO *info, INT xDst,
48 INT yDst, INT widthDst, INT heightDst,
49 INT widthSrc, INT heightSrc)
51 switch(info->bmiHeader.biBitCount)
56 PSDRV_WriteIndexColorSpaceBegin(dev, (1 << info->bmiHeader.biBitCount) - 1);
57 PSDRV_WriteRGBQUAD(dev, info->bmiColors, 1 << info->bmiHeader.biBitCount);
58 PSDRV_WriteIndexColorSpaceEnd(dev);
66 pscol.type = PSCOLOR_RGB;
67 pscol.value.rgb.r = pscol.value.rgb.g = pscol.value.rgb.b = 0.0;
68 PSDRV_WriteSetColor(dev, &pscol);
73 PSDRV_WriteImage(dev, info->bmiHeader.biBitCount, xDst, yDst,
74 widthDst, heightDst, widthSrc, heightSrc, FALSE, info->bmiHeader.biHeight < 0);
79 /***************************************************************************
80 * PSDRV_WriteImageMaskHeader
82 * Helper for PSDRV_PutImage
84 * We use the imagemask operator for 1bpp bitmaps since the output
85 * takes much less time for the printer to render.
88 * Uses level 2 PostScript
91 static BOOL PSDRV_WriteImageMaskHeader(PHYSDEV dev, const BITMAPINFO *info, INT xDst,
92 INT yDst, INT widthDst, INT heightDst,
93 INT widthSrc, INT heightSrc)
95 PSCOLOR bkgnd, foregnd;
97 assert(info->bmiHeader.biBitCount == 1);
99 /* We'll write the mask with -ve polarity so that
100 the foregnd color corresponds to a bit equal to
103 PSDRV_CreateColor(dev, &foregnd, RGB(info->bmiColors[0].rgbRed,
104 info->bmiColors[0].rgbGreen,
105 info->bmiColors[0].rgbBlue) );
106 PSDRV_CreateColor(dev, &bkgnd, RGB(info->bmiColors[1].rgbRed,
107 info->bmiColors[1].rgbGreen,
108 info->bmiColors[1].rgbBlue) );
110 PSDRV_WriteGSave(dev);
111 PSDRV_WriteNewPath(dev);
112 PSDRV_WriteRectangle(dev, xDst, yDst, widthDst, heightDst);
113 PSDRV_WriteSetColor(dev, &bkgnd);
114 PSDRV_WriteFill(dev);
115 PSDRV_WriteGRestore(dev);
117 PSDRV_WriteSetColor(dev, &foregnd);
118 PSDRV_WriteImage(dev, 1, xDst, yDst, widthDst, heightDst,
119 widthSrc, heightSrc, TRUE, info->bmiHeader.biHeight < 0);
124 static inline DWORD max_rle_size(DWORD size)
126 return size + (size + 127) / 128 + 1;
129 static inline DWORD max_ascii85_size(DWORD size)
131 return (size + 3) / 4 * 5;
134 static void free_heap_bits( struct gdi_image_bits *bits )
136 HeapFree( GetProcessHeap(), 0, bits->ptr );
139 /***************************************************************************
140 * PSDRV_WriteImageBits
142 static void PSDRV_WriteImageBits( PHYSDEV dev, const BITMAPINFO *info, INT xDst, INT yDst,
143 INT widthDst, INT heightDst, INT widthSrc, INT heightSrc,
144 void *bits, DWORD size )
147 DWORD rle_len, ascii85_len;
149 if (info->bmiHeader.biBitCount == 1)
150 /* Use imagemask rather than image */
151 PSDRV_WriteImageMaskHeader(dev, info, xDst, yDst, widthDst, heightDst,
152 widthSrc, heightSrc);
154 PSDRV_WriteImageHeader(dev, info, xDst, yDst, widthDst, heightDst,
155 widthSrc, heightSrc);
157 rle = HeapAlloc(GetProcessHeap(), 0, max_rle_size(size));
158 rle_len = RLE_encode(bits, size, rle);
159 ascii85 = HeapAlloc(GetProcessHeap(), 0, max_ascii85_size(rle_len));
160 ascii85_len = ASCII85_encode(rle, rle_len, ascii85);
161 HeapFree(GetProcessHeap(), 0, rle);
162 PSDRV_WriteData(dev, ascii85, ascii85_len);
163 PSDRV_WriteSpool(dev, "~>\n", 3);
164 HeapFree(GetProcessHeap(), 0, ascii85);
167 /***********************************************************************
170 DWORD PSDRV_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
171 const struct gdi_image_bits *bits, struct bitblt_coords *src,
172 struct bitblt_coords *dst, DWORD rop )
174 int src_stride, dst_stride, size, x, y, width, height, bit_offset;
175 int dst_x, dst_y, dst_width, dst_height;
176 unsigned char *src_ptr, *dst_ptr;
177 struct gdi_image_bits dst_bits;
179 if (info->bmiHeader.biPlanes != 1) goto update_format;
180 if (info->bmiHeader.biCompression != BI_RGB) goto update_format;
181 if (info->bmiHeader.biBitCount == 16 || info->bmiHeader.biBitCount == 32) goto update_format;
182 if (!bits) return ERROR_SUCCESS; /* just querying the format */
184 TRACE( "bpp %u %s -> %s\n", info->bmiHeader.biBitCount, wine_dbgstr_rect(&src->visrect),
185 wine_dbgstr_rect(&dst->visrect) );
187 width = src->visrect.right - src->visrect.left;
188 height = src->visrect.bottom - src->visrect.top;
189 src_stride = get_dib_width_bytes( info->bmiHeader.biWidth, info->bmiHeader.biBitCount );
190 dst_stride = (width * info->bmiHeader.biBitCount + 7) / 8;
193 if (info->bmiHeader.biHeight > 0)
194 src_ptr += (info->bmiHeader.biHeight - src->visrect.bottom) * src_stride;
196 src_ptr += src->visrect.top * src_stride;
197 bit_offset = src->visrect.left * info->bmiHeader.biBitCount;
198 src_ptr += bit_offset / 8;
200 if (bit_offset) FIXME( "pos %s not supported\n", wine_dbgstr_rect(&src->visrect) );
201 size = height * dst_stride;
203 if (src_stride != dst_stride || (info->bmiHeader.biBitCount == 24 && !bits->is_copy))
205 if (!(dst_bits.ptr = HeapAlloc( GetProcessHeap(), 0, size ))) return ERROR_OUTOFMEMORY;
206 dst_bits.is_copy = TRUE;
207 dst_bits.free = free_heap_bits;
211 dst_bits.ptr = src_ptr;
212 dst_bits.is_copy = bits->is_copy;
213 dst_bits.free = NULL;
215 dst_ptr = dst_bits.ptr;
217 switch (info->bmiHeader.biBitCount)
222 if (src_stride != dst_stride)
223 for (y = 0; y < height; y++, src_ptr += src_stride, dst_ptr += dst_stride)
224 memcpy( dst_ptr, src_ptr, dst_stride );
227 if (dst_ptr != src_ptr)
228 for (y = 0; y < height; y++, src_ptr += src_stride, dst_ptr += dst_stride)
229 for (x = 0; x < width; x++)
231 dst_ptr[x * 3] = src_ptr[x * 3 + 2];
232 dst_ptr[x * 3 + 1] = src_ptr[x * 3 + 1];
233 dst_ptr[x * 3 + 2] = src_ptr[x * 3];
235 else /* swap R and B in place */
236 for (y = 0; y < height; y++, src_ptr += src_stride, dst_ptr += dst_stride)
237 for (x = 0; x < width; x++)
239 unsigned char tmp = dst_ptr[x * 3];
240 dst_ptr[x * 3] = dst_ptr[x * 3 + 2];
241 dst_ptr[x * 3 + 2] = tmp;
246 dst_x = dst->visrect.left;
247 dst_y = dst->visrect.top,
248 dst_width = dst->visrect.right - dst->visrect.left;
249 dst_height = dst->visrect.bottom - dst->visrect.top;
250 if (src->width * dst->width < 0)
253 dst_width = -dst_width;
255 if (src->height * dst->height < 0)
258 dst_height = -dst_height;
262 PSDRV_WriteGSave(dev);
263 if (clip) PSDRV_AddClip( dev, clip );
264 PSDRV_WriteImageBits( dev, info, dst_x, dst_y, dst_width, dst_height,
265 width, height, dst_bits.ptr, size );
266 PSDRV_WriteGRestore(dev);
267 PSDRV_ResetClip(dev);
268 if (dst_bits.free) dst_bits.free( &dst_bits );
269 return ERROR_SUCCESS;
272 info->bmiHeader.biPlanes = 1;
273 if (info->bmiHeader.biBitCount > 8) info->bmiHeader.biBitCount = 24;
274 info->bmiHeader.biCompression = BI_RGB;
275 return ERROR_BAD_FORMAT;