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408 lines
12 KiB
C
408 lines
12 KiB
C
/*
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* PostScript driver bitmap functions
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*
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* Copyright 1998 Huw D M Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include "psdrv.h"
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#include "winbase.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
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/* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned. */
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inline static int get_dib_width_bytes( int width, int depth )
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{
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int words;
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switch(depth)
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{
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case 1: words = (width + 31) / 32; break;
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case 4: words = (width + 7) / 8; break;
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case 8: words = (width + 3) / 4; break;
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case 15:
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case 16: words = (width + 1) / 2; break;
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case 24: words = (width * 3 + 3)/4; break;
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default:
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WARN("(%d): Unsupported depth\n", depth );
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/* fall through */
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case 32: words = width; break;
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}
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return 4 * words;
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}
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/* get the bitmap info from either an INFOHEADER or COREHEADER bitmap */
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static BOOL get_bitmap_info( const void *ptr, LONG *width, LONG *height, WORD *bpp, WORD *compr )
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{
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const BITMAPINFOHEADER *header = ptr;
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switch(header->biSize)
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{
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case sizeof(BITMAPCOREHEADER):
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{
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const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
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*width = core->bcWidth;
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*height = core->bcHeight;
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*bpp = core->bcBitCount;
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*compr = 0;
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}
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return TRUE;
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case sizeof(BITMAPINFOHEADER):
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case sizeof(BITMAPV4HEADER):
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case sizeof(BITMAPV5HEADER):
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/* V4 and V5 structures are a superset of the INFOHEADER structure */
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*width = header->biWidth;
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*height = header->biHeight;
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*bpp = header->biBitCount;
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*compr = header->biCompression;
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return TRUE;
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default:
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ERR("(%ld): unknown/wrong size for header\n", header->biSize );
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return FALSE;
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}
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}
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/***************************************************************************
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* PSDRV_WriteImageHeader
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*
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* Helper for PSDRV_StretchDIBits
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*
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* BUGS
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* Uses level 2 PostScript
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*/
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static BOOL PSDRV_WriteImageHeader(PSDRV_PDEVICE *physDev, const BITMAPINFO *info, INT xDst,
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INT yDst, INT widthDst, INT heightDst,
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INT widthSrc, INT heightSrc)
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{
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COLORREF map[256];
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int i;
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switch(info->bmiHeader.biBitCount) {
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case 8:
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PSDRV_WriteIndexColorSpaceBegin(physDev, 255);
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for(i = 0; i < 256; i++) {
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map[i] = info->bmiColors[i].rgbRed |
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info->bmiColors[i].rgbGreen << 8 |
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info->bmiColors[i].rgbBlue << 16;
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}
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PSDRV_WriteRGB(physDev, map, 256);
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PSDRV_WriteIndexColorSpaceEnd(physDev);
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break;
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case 4:
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PSDRV_WriteIndexColorSpaceBegin(physDev, 15);
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for(i = 0; i < 16; i++) {
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map[i] = info->bmiColors[i].rgbRed |
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info->bmiColors[i].rgbGreen << 8 |
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info->bmiColors[i].rgbBlue << 16;
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}
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PSDRV_WriteRGB(physDev, map, 16);
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PSDRV_WriteIndexColorSpaceEnd(physDev);
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break;
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case 1:
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PSDRV_WriteIndexColorSpaceBegin(physDev, 1);
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for(i = 0; i < 2; i++) {
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map[i] = info->bmiColors[i].rgbRed |
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info->bmiColors[i].rgbGreen << 8 |
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info->bmiColors[i].rgbBlue << 16;
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}
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PSDRV_WriteRGB(physDev, map, 2);
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PSDRV_WriteIndexColorSpaceEnd(physDev);
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break;
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case 15:
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case 16:
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case 24:
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case 32:
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{
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PSCOLOR pscol;
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pscol.type = PSCOLOR_RGB;
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pscol.value.rgb.r = pscol.value.rgb.g = pscol.value.rgb.b = 0.0;
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PSDRV_WriteSetColor(physDev, &pscol);
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break;
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}
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default:
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FIXME("Not implemented yet\n");
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return FALSE;
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}
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PSDRV_WriteImage(physDev, info->bmiHeader.biBitCount, xDst, yDst,
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widthDst, heightDst, widthSrc, heightSrc, FALSE);
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return TRUE;
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}
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/***************************************************************************
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* PSDRV_WriteImageMaskHeader
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*
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* Helper for PSDRV_StretchDIBits
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*
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* We use the imagemask operator for 1bpp bitmaps since the output
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* takes much less time for the printer to render.
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*
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* BUGS
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* Uses level 2 PostScript
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*/
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static BOOL PSDRV_WriteImageMaskHeader(PSDRV_PDEVICE *physDev, const BITMAPINFO *info, INT xDst,
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INT yDst, INT widthDst, INT heightDst,
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INT widthSrc, INT heightSrc)
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{
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COLORREF map[2];
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PSCOLOR bkgnd, foregnd;
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int i;
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assert(info->bmiHeader.biBitCount == 1);
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for(i = 0; i < 2; i++) {
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map[i] = info->bmiColors[i].rgbRed |
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info->bmiColors[i].rgbGreen << 8 |
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info->bmiColors[i].rgbBlue << 16;
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}
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/* We'll write the mask with -ve polarity so that
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the foregnd color corresponds to a bit equal to
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0 in the bitmap.
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*/
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PSDRV_CreateColor(physDev, &foregnd, map[0]);
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PSDRV_CreateColor(physDev, &bkgnd, map[1]);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteNewPath(physDev);
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PSDRV_WriteRectangle(physDev, xDst, yDst, widthDst, heightDst);
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PSDRV_WriteSetColor(physDev, &bkgnd);
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PSDRV_WriteFill(physDev);
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PSDRV_WriteGRestore(physDev);
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PSDRV_WriteSetColor(physDev, &foregnd);
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PSDRV_WriteImage(physDev, 1, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc, TRUE);
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return TRUE;
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}
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static inline DWORD max_rle_size(DWORD size)
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{
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return size + (size + 127) / 128 + 1;
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}
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static inline DWORD max_ascii85_size(DWORD size)
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{
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return (size + 3) / 4 * 5;
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}
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/***************************************************************************
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*
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* PSDRV_StretchDIBits
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*
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* BUGS
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* Doesn't work correctly if xSrc isn't byte aligned - this affects 1 and 4
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* bit depths.
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* Compression not implemented.
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*/
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INT PSDRV_StretchDIBits( PSDRV_PDEVICE *physDev, INT xDst, INT yDst, INT widthDst,
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INT heightDst, INT xSrc, INT ySrc,
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INT widthSrc, INT heightSrc, const void *bits,
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const BITMAPINFO *info, UINT wUsage, DWORD dwRop )
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{
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LONG fullSrcWidth, fullSrcHeight;
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INT widthbytes;
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WORD bpp, compression;
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INT line;
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POINT pt[2];
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const BYTE *src_ptr;
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BYTE *dst_ptr, *bitmap, *rle, *ascii85;
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DWORD rle_len, ascii85_len, bitmap_size;
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TRACE("%p (%d,%d %dx%d) -> (%d,%d %dx%d)\n", physDev->hdc,
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xSrc, ySrc, widthSrc, heightSrc, xDst, yDst, widthDst, heightDst);
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if (!get_bitmap_info( info, &fullSrcWidth, &fullSrcHeight, &bpp, &compression )) return FALSE;
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widthbytes = get_dib_width_bytes(fullSrcWidth, bpp);
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TRACE("full size=%ldx%ld bpp=%d compression=%d rop=%08lx\n", fullSrcWidth,
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fullSrcHeight, bpp, compression, dwRop);
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if(compression != BI_RGB) {
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FIXME("Compression not supported\n");
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return FALSE;
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}
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pt[0].x = xDst;
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pt[0].y = yDst;
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pt[1].x = xDst + widthDst;
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pt[1].y = yDst + heightDst;
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LPtoDP( physDev->hdc, pt, 2 );
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xDst = pt[0].x;
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yDst = pt[0].y;
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widthDst = pt[1].x - pt[0].x;
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heightDst = pt[1].y - pt[0].y;
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switch(bpp) {
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case 1:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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/* Use imagemask rather than image */
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PSDRV_WriteImageMaskHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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if(xSrc & 7)
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FIXME("This won't work...\n");
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bitmap_size = heightSrc * ((widthSrc + 7) / 8);
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += ((widthSrc + 7) / 8))
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memcpy(dst_ptr, src_ptr + xSrc / 8, (widthSrc + 7) / 8);
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break;
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case 4:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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if(xSrc & 1)
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FIXME("This won't work...\n");
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bitmap_size = heightSrc * ((widthSrc + 1) / 2);
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += ((widthSrc + 1) / 2))
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memcpy(dst_ptr, src_ptr + xSrc/2, (widthSrc+1)/2);
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break;
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case 8:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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bitmap_size = heightSrc * widthSrc;
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes, dst_ptr += widthSrc)
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memcpy(dst_ptr, src_ptr + xSrc, widthSrc);
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break;
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case 15:
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case 16:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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bitmap_size = heightSrc * widthSrc * 3;
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
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const WORD *words = (const WORD *)src_ptr + xSrc;
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int i;
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for(i = 0; i < widthSrc; i++) {
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BYTE r, g, b;
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/* We want 0x0 -- 0x1f to map to 0x0 -- 0xff */
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r = words[i] >> 10 & 0x1f;
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r = r << 3 | r >> 2;
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g = words[i] >> 5 & 0x1f;
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g = g << 3 | g >> 2;
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b = words[i] & 0x1f;
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b = b << 3 | b >> 2;
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dst_ptr[0] = r;
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dst_ptr[1] = g;
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dst_ptr[2] = b;
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dst_ptr += 3;
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}
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}
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break;
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case 24:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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bitmap_size = heightSrc * widthSrc * 3;
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
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const BYTE *byte = src_ptr + xSrc * 3;
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int i;
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for(i = 0; i < widthSrc; i++) {
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dst_ptr[0] = byte[i * 3 + 2];
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dst_ptr[1] = byte[i * 3 + 1];
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dst_ptr[2] = byte[i * 3];
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dst_ptr += 3;
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}
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}
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break;
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case 32:
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PSDRV_SetClip(physDev);
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PSDRV_WriteGSave(physDev);
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PSDRV_WriteImageHeader(physDev, info, xDst, yDst, widthDst, heightDst,
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widthSrc, heightSrc);
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src_ptr = bits;
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src_ptr += (ySrc * widthbytes);
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bitmap_size = heightSrc * widthSrc * 3;
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dst_ptr = bitmap = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
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for(line = 0; line < heightSrc; line++, src_ptr += widthbytes) {
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const BYTE *byte = src_ptr + xSrc * 4;
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int i;
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for(i = 0; i < widthSrc; i++) {
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dst_ptr[0] = byte[i * 4 + 2];
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dst_ptr[1] = byte[i * 4 + 1];
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dst_ptr[2] = byte[i * 4];
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dst_ptr += 3;
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}
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}
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break;
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default:
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FIXME("Unsupported depth\n");
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return FALSE;
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}
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rle = HeapAlloc(GetProcessHeap(), 0, max_rle_size(bitmap_size));
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rle_len = RLE_encode(bitmap, bitmap_size, rle);
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HeapFree(GetProcessHeap(), 0, bitmap);
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ascii85 = HeapAlloc(GetProcessHeap(), 0, max_ascii85_size(rle_len));
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ascii85_len = ASCII85_encode(rle, rle_len, ascii85);
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HeapFree(GetProcessHeap(), 0, rle);
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PSDRV_WriteData(physDev, ascii85, ascii85_len);
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HeapFree(GetProcessHeap(), 0, ascii85);
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PSDRV_WriteSpool(physDev, "~>\n", 3);
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PSDRV_WriteGRestore(physDev);
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PSDRV_ResetClip(physDev);
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return abs(heightSrc);
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}
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