356 lines
13 KiB
C
356 lines
13 KiB
C
/*
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* Enhanced MetaFile driver BitBlt functions
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*
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* Copyright 2002 Huw D M Davies for CodeWeavers
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <assert.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "enhmetafiledrv.h"
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/* Generate an EMRBITBLT, EMRSTRETCHBLT or EMRALPHABLEND record depending on the type parameter */
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static BOOL emfdrv_stretchblt( PHYSDEV dev_dst, INT x_dst, INT y_dst, INT width_dst, INT height_dst,
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HDC hdc_src, INT x_src, INT y_src, INT width_src, INT height_src,
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DWORD rop, DWORD type )
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{
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BITMAPINFO src_info = {{ sizeof( src_info.bmiHeader ) }};
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UINT bmi_size, emr_size, size, bpp;
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HBITMAP bitmap, blit_bitmap = NULL;
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EMRBITBLT *emr = NULL;
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BITMAPINFO *bmi;
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DIBSECTION dib;
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HDC blit_dc;
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int info_size;
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BOOL ret = FALSE;
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if (!(bitmap = GetCurrentObject( hdc_src, OBJ_BITMAP ))) return FALSE;
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if (!(info_size = GetObjectW( bitmap, sizeof(dib), &dib ))) return FALSE;
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if (info_size == sizeof(DIBSECTION))
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{
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blit_dc = hdc_src;
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blit_bitmap = bitmap;
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}
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else
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{
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unsigned char dib_info_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
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BITMAPINFO *dib_info = (BITMAPINFO *)dib_info_buffer;
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BITMAP bmp = dib.dsBm;
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HPALETTE palette;
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void *bits;
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assert( info_size == sizeof(BITMAP) );
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dib_info->bmiHeader.biSize = sizeof(dib_info->bmiHeader);
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dib_info->bmiHeader.biWidth = bmp.bmWidth;
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dib_info->bmiHeader.biHeight = bmp.bmHeight;
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dib_info->bmiHeader.biPlanes = 1;
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dib_info->bmiHeader.biBitCount = bmp.bmBitsPixel;
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dib_info->bmiHeader.biCompression = BI_RGB;
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dib_info->bmiHeader.biSizeImage = 0;
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dib_info->bmiHeader.biXPelsPerMeter = 0;
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dib_info->bmiHeader.biYPelsPerMeter = 0;
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dib_info->bmiHeader.biClrUsed = 0;
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dib_info->bmiHeader.biClrImportant = 0;
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switch (dib_info->bmiHeader.biBitCount)
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{
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case 16:
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((DWORD *)dib_info->bmiColors)[0] = 0xf800;
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((DWORD *)dib_info->bmiColors)[1] = 0x07e0;
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((DWORD *)dib_info->bmiColors)[2] = 0x001f;
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break;
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case 32:
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((DWORD *)dib_info->bmiColors)[0] = 0xff0000;
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((DWORD *)dib_info->bmiColors)[1] = 0x00ff00;
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((DWORD *)dib_info->bmiColors)[2] = 0x0000ff;
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break;
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default:
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if (dib_info->bmiHeader.biBitCount > 8) break;
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if (!(palette = GetCurrentObject( hdc_src, OBJ_PAL ))) return FALSE;
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if (!GetPaletteEntries( palette, 0, 256, (PALETTEENTRY *)dib_info->bmiColors ))
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return FALSE;
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}
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if (!(blit_dc = NtGdiCreateCompatibleDC( hdc_src ))) return FALSE;
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if (!(blit_bitmap = CreateDIBSection( blit_dc, dib_info, DIB_RGB_COLORS, &bits, NULL, 0 )))
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goto err;
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if (!SelectObject( blit_dc, blit_bitmap )) goto err;
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if (!BitBlt( blit_dc, 0, 0, bmp.bmWidth, bmp.bmHeight, hdc_src, 0, 0, SRCCOPY ))
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goto err;
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}
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if (!GetDIBits( blit_dc, blit_bitmap, 0, INT_MAX, NULL, &src_info, DIB_RGB_COLORS ))
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goto err;
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bpp = src_info.bmiHeader.biBitCount;
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if (bpp <= 8)
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bmi_size = sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD);
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else if (bpp == 16 || bpp == 32)
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bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD);
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else
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bmi_size = sizeof(BITMAPINFOHEADER);
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/* EMRSTRETCHBLT and EMRALPHABLEND have the same structure */
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emr_size = type == EMR_BITBLT ? sizeof(EMRBITBLT) : sizeof(EMRSTRETCHBLT);
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size = emr_size + bmi_size + src_info.bmiHeader.biSizeImage;
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if (!(emr = HeapAlloc(GetProcessHeap(), 0, size))) goto err;
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emr->emr.iType = type;
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emr->emr.nSize = size;
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emr->rclBounds.left = x_dst;
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emr->rclBounds.top = y_dst;
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emr->rclBounds.right = x_dst + width_dst - 1;
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emr->rclBounds.bottom = y_dst + height_dst - 1;
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emr->xDest = x_dst;
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emr->yDest = y_dst;
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emr->cxDest = width_dst;
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emr->cyDest = height_dst;
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emr->xSrc = x_src;
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emr->ySrc = y_src;
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if (type == EMR_STRETCHBLT || type == EMR_ALPHABLEND)
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{
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EMRSTRETCHBLT *emr_stretchblt = (EMRSTRETCHBLT *)emr;
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emr_stretchblt->cxSrc = width_src;
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emr_stretchblt->cySrc = height_src;
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}
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emr->dwRop = rop;
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NtGdiGetTransform( hdc_src, 0x204, &emr->xformSrc );
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emr->crBkColorSrc = GetBkColor( hdc_src );
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emr->iUsageSrc = DIB_RGB_COLORS;
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emr->offBmiSrc = emr_size;
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emr->cbBmiSrc = bmi_size;
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emr->offBitsSrc = emr_size + bmi_size;
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emr->cbBitsSrc = src_info.bmiHeader.biSizeImage;
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bmi = (BITMAPINFO *)((BYTE *)emr + emr->offBmiSrc);
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bmi->bmiHeader = src_info.bmiHeader;
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ret = GetDIBits( blit_dc, blit_bitmap, 0, src_info.bmiHeader.biHeight, (BYTE *)emr + emr->offBitsSrc,
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bmi, DIB_RGB_COLORS );
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if (ret)
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{
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ret = EMFDRV_WriteRecord( dev_dst, (EMR *)emr );
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if (ret) EMFDRV_UpdateBBox( dev_dst, &emr->rclBounds );
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}
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err:
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HeapFree( GetProcessHeap(), 0, emr );
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if (blit_bitmap && blit_bitmap != bitmap) DeleteObject( blit_bitmap );
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if (blit_dc && blit_dc != hdc_src) DeleteDC( blit_dc );
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return ret;
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}
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BOOL EMFDC_AlphaBlend( DC_ATTR *dc_attr, INT x_dst, INT y_dst, INT width_dst, INT height_dst,
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HDC hdc_src, INT x_src, INT y_src, INT width_src, INT height_src,
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BLENDFUNCTION blend_function )
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{
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return emfdrv_stretchblt( dc_attr->emf, x_dst, y_dst, width_dst, height_dst, hdc_src, x_src, y_src,
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width_src, height_src, *(DWORD *)&blend_function, EMR_ALPHABLEND );
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}
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BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
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PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func )
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{
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/* FIXME: update bound rect */
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return TRUE;
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}
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BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
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{
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/* FIXME: update bound rect */
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return TRUE;
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}
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BOOL EMFDC_PatBlt( DC_ATTR *dc_attr, INT left, INT top, INT width, INT height, DWORD rop )
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{
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EMFDRV_PDEVICE *emf = dc_attr->emf;
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EMRBITBLT emr;
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BOOL ret;
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emr.emr.iType = EMR_BITBLT;
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emr.emr.nSize = sizeof(emr);
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emr.rclBounds.left = left;
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emr.rclBounds.top = top;
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emr.rclBounds.right = left + width - 1;
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emr.rclBounds.bottom = top + height - 1;
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emr.xDest = left;
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emr.yDest = top;
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emr.cxDest = width;
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emr.cyDest = height;
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emr.dwRop = rop;
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emr.xSrc = 0;
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emr.ySrc = 0;
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emr.xformSrc.eM11 = 1.0;
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emr.xformSrc.eM12 = 0.0;
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emr.xformSrc.eM21 = 0.0;
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emr.xformSrc.eM22 = 1.0;
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emr.xformSrc.eDx = 0.0;
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emr.xformSrc.eDy = 0.0;
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emr.crBkColorSrc = 0;
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emr.iUsageSrc = 0;
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emr.offBmiSrc = 0;
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emr.cbBmiSrc = 0;
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emr.offBitsSrc = 0;
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emr.cbBitsSrc = 0;
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ret = EMFDRV_WriteRecord( &emf->dev, &emr.emr );
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if(ret)
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EMFDRV_UpdateBBox( &emf->dev, &emr.rclBounds );
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return ret;
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}
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static inline BOOL rop_uses_src( DWORD rop )
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{
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return ((rop >> 2) & 0x330000) != (rop & 0x330000);
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}
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BOOL EMFDC_BitBlt( DC_ATTR *dc_attr, INT x_dst, INT y_dst, INT width, INT height,
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HDC hdc_src, INT x_src, INT y_src, DWORD rop )
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{
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if (!rop_uses_src( rop )) return EMFDC_PatBlt( dc_attr, x_dst, y_dst, width, height, rop );
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return emfdrv_stretchblt( dc_attr->emf, x_dst, y_dst, width, height,
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hdc_src, x_src, y_src, width, height, rop, EMR_BITBLT );
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}
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BOOL EMFDC_StretchBlt( DC_ATTR *dc_attr, INT x_dst, INT y_dst, INT width_dst, INT height_dst,
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HDC hdc_src, INT x_src, INT y_src, INT width_src, INT height_src,
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DWORD rop )
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{
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if (!rop_uses_src( rop )) return EMFDC_PatBlt( dc_attr, x_dst, y_dst, width_dst, height_dst, rop );
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return emfdrv_stretchblt( dc_attr->emf, x_dst, y_dst, width_dst, height_dst,
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hdc_src, x_src, y_src, width_src,
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height_src, rop, EMR_STRETCHBLT );
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}
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INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
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INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, const void *bits,
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BITMAPINFO *info, UINT wUsage, DWORD dwRop )
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{
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/* FIXME: Update bound rect */
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return heightSrc;
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}
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BOOL EMFDC_StretchDIBits( DC_ATTR *dc_attr, INT x_dst, INT y_dst, INT width_dst, INT height_dst,
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INT x_src, INT y_src, INT width_src, INT height_src, const void *bits,
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const BITMAPINFO *info, UINT usage, DWORD rop )
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{
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EMRSTRETCHDIBITS *emr;
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BOOL ret;
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UINT bmi_size, emr_size;
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/* calculate the size of the colour table */
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bmi_size = get_dib_info_size( info, usage );
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emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + info->bmiHeader.biSizeImage;
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emr = HeapAlloc(GetProcessHeap(), 0, emr_size );
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if (!emr) return 0;
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/* write a bitmap info header (with colours) to the record */
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memcpy( &emr[1], info, bmi_size);
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/* write bitmap bits to the record */
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memcpy ( ( (BYTE *) (&emr[1]) ) + bmi_size, bits, info->bmiHeader.biSizeImage);
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/* fill in the EMR header at the front of our piece of memory */
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emr->emr.iType = EMR_STRETCHDIBITS;
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emr->emr.nSize = emr_size;
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emr->xDest = x_dst;
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emr->yDest = y_dst;
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emr->cxDest = width_dst;
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emr->cyDest = height_dst;
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emr->dwRop = rop;
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emr->xSrc = x_src; /* FIXME: only save the piece of the bitmap needed */
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emr->ySrc = y_src;
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emr->iUsageSrc = usage;
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emr->offBmiSrc = sizeof (EMRSTRETCHDIBITS);
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emr->cbBmiSrc = bmi_size;
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emr->offBitsSrc = emr->offBmiSrc + bmi_size;
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emr->cbBitsSrc = info->bmiHeader.biSizeImage;
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emr->cxSrc = width_src;
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emr->cySrc = height_src;
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emr->rclBounds.left = x_dst;
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emr->rclBounds.top = y_dst;
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emr->rclBounds.right = x_dst + width_dst;
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emr->rclBounds.bottom = y_dst + height_dst;
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/* save the record we just created */
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ret = EMFDRV_WriteRecord( dc_attr->emf, &emr->emr );
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if(ret)
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EMFDRV_UpdateBBox( dc_attr->emf, &emr->rclBounds );
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HeapFree(GetProcessHeap(), 0, emr);
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return ret;
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}
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INT CDECL EMFDRV_SetDIBitsToDevice( PHYSDEV dev, INT xDst, INT yDst, DWORD width, DWORD height,
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INT xSrc, INT ySrc, UINT startscan, UINT lines,
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LPCVOID bits, BITMAPINFO *info, UINT wUsage )
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{
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/* FIXME: Update bound rect */
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return lines;
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}
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BOOL EMFDC_SetDIBitsToDevice( DC_ATTR *dc_attr, INT x_dst, INT y_dst, DWORD width, DWORD height,
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INT x_src, INT y_src, UINT startscan, UINT lines,
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const void *bits, const BITMAPINFO *info, UINT usage )
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{
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EMRSETDIBITSTODEVICE* pEMR;
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DWORD bmiSize = get_dib_info_size( info, usage );
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DWORD size = sizeof(EMRSETDIBITSTODEVICE) + bmiSize + info->bmiHeader.biSizeImage;
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BOOL ret;
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pEMR = HeapAlloc(GetProcessHeap(), 0, size);
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if (!pEMR) return FALSE;
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pEMR->emr.iType = EMR_SETDIBITSTODEVICE;
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pEMR->emr.nSize = size;
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pEMR->rclBounds.left = x_dst;
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pEMR->rclBounds.top = y_dst;
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pEMR->rclBounds.right = x_dst + width - 1;
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pEMR->rclBounds.bottom = y_dst + height - 1;
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pEMR->xDest = x_dst;
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pEMR->yDest = y_dst;
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pEMR->xSrc = x_src;
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pEMR->ySrc = y_src;
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pEMR->cxSrc = width;
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pEMR->cySrc = height;
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pEMR->offBmiSrc = sizeof(EMRSETDIBITSTODEVICE);
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pEMR->cbBmiSrc = bmiSize;
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pEMR->offBitsSrc = sizeof(EMRSETDIBITSTODEVICE) + bmiSize;
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pEMR->cbBitsSrc = info->bmiHeader.biSizeImage;
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pEMR->iUsageSrc = usage;
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pEMR->iStartScan = startscan;
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pEMR->cScans = lines;
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memcpy((BYTE*)pEMR + pEMR->offBmiSrc, info, bmiSize);
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memcpy((BYTE*)pEMR + pEMR->offBitsSrc, bits, info->bmiHeader.biSizeImage);
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if ((ret = EMFDRV_WriteRecord( dc_attr->emf, (EMR*)pEMR )))
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EMFDRV_UpdateBBox( dc_attr->emf, &pEMR->rclBounds );
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HeapFree( GetProcessHeap(), 0, pEMR);
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return ret;
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}
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