1594 lines
57 KiB
C
1594 lines
57 KiB
C
/*
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* GDI device-independent bitmaps
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*
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* Copyright 1993,1994 Alexandre Julliard
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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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/*
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Important information:
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* Current Windows versions support two different DIB structures:
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- BITMAPCOREINFO / BITMAPCOREHEADER (legacy structures; used in OS/2)
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- BITMAPINFO / BITMAPINFOHEADER
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Most Windows API functions taking a BITMAPINFO* / BITMAPINFOHEADER* also
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accept the old "core" structures, and so must WINE.
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You can distinguish them by looking at the first member (bcSize/biSize).
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* The palettes are stored in different formats:
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- BITMAPCOREINFO: Array of RGBTRIPLE
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- BITMAPINFO: Array of RGBQUAD
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* There are even more DIB headers, but they all extend BITMAPINFOHEADER:
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- BITMAPV4HEADER: Introduced in Windows 95 / NT 4.0
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- BITMAPV5HEADER: Introduced in Windows 98 / 2000
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If biCompression is BI_BITFIELDS, the color masks are at the same position
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in all the headers (they start at bmiColors of BITMAPINFOHEADER), because
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the new headers have structure members for the masks.
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* You should never access the color table using the bmiColors member,
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because the passed structure may have one of the extended headers
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mentioned above. Use this to calculate the location:
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BITMAPINFO* info;
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void* colorPtr = (LPBYTE) info + (WORD) info->bmiHeader.biSize;
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* More information:
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Search for "Bitmap Structures" in MSDN
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*/
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#include <stdarg.h>
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#include <stdlib.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 "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(bitmap);
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/***********************************************************************
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* bitmap_info_size
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*
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* Return the size of the bitmap info structure including color table.
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*/
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int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
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{
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unsigned int colors, size, masks = 0;
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if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
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{
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const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
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colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
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return sizeof(BITMAPCOREHEADER) + colors *
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((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
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}
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else /* assume BITMAPINFOHEADER */
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{
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if (info->bmiHeader.biClrUsed) colors = min( info->bmiHeader.biClrUsed, 256 );
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else colors = info->bmiHeader.biBitCount > 8 ? 0 : 1 << info->bmiHeader.biBitCount;
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if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
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size = max( info->bmiHeader.biSize, sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) );
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return size + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
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}
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}
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/*******************************************************************************************
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* Verify that the DIB parameters are valid.
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*/
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static BOOL is_valid_dib_format( const BITMAPINFOHEADER *info, BOOL allow_compression )
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{
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if (info->biWidth <= 0) return FALSE;
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if (info->biHeight == 0) return FALSE;
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if (allow_compression && (info->biCompression == BI_RLE4 || info->biCompression == BI_RLE8))
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{
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if (info->biHeight < 0) return FALSE;
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if (!info->biSizeImage) return FALSE;
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return info->biBitCount == (info->biCompression == BI_RLE4 ? 4 : 8);
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}
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if (!info->biPlanes) return FALSE;
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switch (info->biBitCount)
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{
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case 1:
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case 4:
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case 8:
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case 24:
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return (info->biCompression == BI_RGB);
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case 16:
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case 32:
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return (info->biCompression == BI_BITFIELDS || info->biCompression == BI_RGB);
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default:
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return FALSE;
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}
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}
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/*******************************************************************************************
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* Fill out a true BITMAPINFOHEADER from a variable sized BITMAPINFOHEADER / BITMAPCOREHEADER.
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*/
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static BOOL bitmapinfoheader_from_user_bitmapinfo( BITMAPINFOHEADER *dst, const BITMAPINFOHEADER *info )
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{
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if (!info) return FALSE;
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if (info->biSize == sizeof(BITMAPCOREHEADER))
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{
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const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
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dst->biWidth = core->bcWidth;
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dst->biHeight = core->bcHeight;
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dst->biPlanes = core->bcPlanes;
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dst->biBitCount = core->bcBitCount;
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dst->biCompression = BI_RGB;
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dst->biXPelsPerMeter = 0;
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dst->biYPelsPerMeter = 0;
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dst->biClrUsed = 0;
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dst->biClrImportant = 0;
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}
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else if (info->biSize >= sizeof(BITMAPINFOHEADER)) /* assume BITMAPINFOHEADER */
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{
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*dst = *info;
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}
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else
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{
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WARN( "(%u): unknown/wrong size for header\n", info->biSize );
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return FALSE;
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}
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dst->biSize = sizeof(*dst);
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if (dst->biCompression == BI_RGB || dst->biCompression == BI_BITFIELDS)
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dst->biSizeImage = get_dib_image_size( (BITMAPINFO *)dst );
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return TRUE;
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}
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/*******************************************************************************************
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* Fill out a true BITMAPINFO from a variable sized BITMAPINFO / BITMAPCOREINFO.
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*
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* The resulting stanitized BITMAPINFO is guaranteed to have:
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* - biSize set to sizeof(BITMAPINFOHEADER)
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* - biSizeImage set to the actual image size even for non-compressed DIB
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* - biClrUsed set to the size of the color table, and 0 only when there is no color table
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* - color table present only for <= 8 bpp, always starts at info->bmiColors
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*/
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static BOOL bitmapinfo_from_user_bitmapinfo( BITMAPINFO *dst, const BITMAPINFO *info,
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UINT coloruse, BOOL allow_compression )
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{
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void *src_colors;
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if (!bitmapinfoheader_from_user_bitmapinfo( &dst->bmiHeader, &info->bmiHeader )) return FALSE;
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if (!is_valid_dib_format( &dst->bmiHeader, allow_compression )) return FALSE;
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src_colors = (char *)info + info->bmiHeader.biSize;
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if (dst->bmiHeader.biCompression == BI_BITFIELDS)
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{
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/* bitfields are always at bmiColors even in larger structures */
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memcpy( dst->bmiColors, info->bmiColors, 3 * sizeof(DWORD) );
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dst->bmiHeader.biClrUsed = 0;
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}
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else if (dst->bmiHeader.biBitCount <= 8)
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{
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unsigned int colors = dst->bmiHeader.biClrUsed;
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unsigned int max_colors = 1 << dst->bmiHeader.biBitCount;
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if (!colors) colors = max_colors;
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else colors = min( colors, max_colors );
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if (coloruse == DIB_PAL_COLORS)
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{
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memcpy( dst->bmiColors, src_colors, colors * sizeof(WORD) );
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max_colors = colors;
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}
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else if (info->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
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{
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memcpy( dst->bmiColors, src_colors, colors * sizeof(RGBQUAD) );
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}
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else
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{
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unsigned int i;
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RGBTRIPLE *triple = (RGBTRIPLE *)src_colors;
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for (i = 0; i < colors; i++)
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{
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dst->bmiColors[i].rgbRed = triple[i].rgbtRed;
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dst->bmiColors[i].rgbGreen = triple[i].rgbtGreen;
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dst->bmiColors[i].rgbBlue = triple[i].rgbtBlue;
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dst->bmiColors[i].rgbReserved = 0;
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}
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}
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memset( dst->bmiColors + colors, 0, (max_colors - colors) * sizeof(RGBQUAD) );
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dst->bmiHeader.biClrUsed = max_colors;
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}
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else dst->bmiHeader.biClrUsed = 0;
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return TRUE;
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}
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static int fill_color_table_from_palette( BITMAPINFO *info, HDC hdc )
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{
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PALETTEENTRY palEntry[256];
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HPALETTE palette = GetCurrentObject( hdc, OBJ_PAL );
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int i, colors = 1 << info->bmiHeader.biBitCount;
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info->bmiHeader.biClrUsed = colors;
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if (!palette) return 0;
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memset( palEntry, 0, sizeof(palEntry) );
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if (!GetPaletteEntries( palette, 0, colors, palEntry ))
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return 0;
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for (i = 0; i < colors; i++)
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{
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info->bmiColors[i].rgbRed = palEntry[i].peRed;
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info->bmiColors[i].rgbGreen = palEntry[i].peGreen;
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info->bmiColors[i].rgbBlue = palEntry[i].peBlue;
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info->bmiColors[i].rgbReserved = 0;
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}
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return colors;
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}
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BOOL fill_color_table_from_pal_colors( BITMAPINFO *info, HDC hdc )
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{
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PALETTEENTRY entries[256];
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RGBQUAD table[256];
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HPALETTE palette;
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const WORD *index = (const WORD *)info->bmiColors;
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int i, count, colors = info->bmiHeader.biClrUsed;
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if (!colors) return TRUE;
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if (!(palette = GetCurrentObject( hdc, OBJ_PAL ))) return FALSE;
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if (!(count = GetPaletteEntries( palette, 0, colors, entries ))) return FALSE;
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for (i = 0; i < colors; i++, index++)
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{
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table[i].rgbRed = entries[*index % count].peRed;
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table[i].rgbGreen = entries[*index % count].peGreen;
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table[i].rgbBlue = entries[*index % count].peBlue;
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table[i].rgbReserved = 0;
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}
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info->bmiHeader.biClrUsed = 1 << info->bmiHeader.biBitCount;
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memcpy( info->bmiColors, table, colors * sizeof(RGBQUAD) );
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memset( info->bmiColors + colors, 0, (info->bmiHeader.biClrUsed - colors) * sizeof(RGBQUAD) );
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return TRUE;
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}
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static void *get_pixel_ptr( const BITMAPINFO *info, void *bits, int x, int y )
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{
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const int width = info->bmiHeader.biWidth, height = info->bmiHeader.biHeight;
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const int bpp = info->bmiHeader.biBitCount;
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if (height > 0)
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return (char *)bits + (height - y - 1) * get_dib_stride( width, bpp ) + x * bpp / 8;
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else
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return (char *)bits + y * get_dib_stride( width, bpp ) + x * bpp / 8;
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}
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static BOOL build_rle_bitmap( const BITMAPINFO *info, struct gdi_image_bits *bits, HRGN *clip )
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{
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int i = 0;
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int left, right;
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int x, y, width = info->bmiHeader.biWidth, height = info->bmiHeader.biHeight;
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HRGN run = NULL;
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BYTE skip, num, data;
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BYTE *out_bits, *in_bits = bits->ptr;
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if (clip) *clip = NULL;
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assert( info->bmiHeader.biBitCount == 4 || info->bmiHeader.biBitCount == 8 );
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out_bits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, get_dib_image_size( info ) );
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if (!out_bits) goto fail;
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if (clip)
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{
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*clip = CreateRectRgn( 0, 0, 0, 0 );
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run = CreateRectRgn( 0, 0, 0, 0 );
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if (!*clip || !run) goto fail;
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}
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x = left = right = 0;
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y = height - 1;
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while (i < info->bmiHeader.biSizeImage - 1)
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{
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num = in_bits[i];
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data = in_bits[i + 1];
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i += 2;
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if (num)
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{
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if (x + num > width) num = width - x;
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if (num)
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{
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BYTE s = data, *out_ptr = get_pixel_ptr( info, out_bits, x, y );
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if (info->bmiHeader.biBitCount == 8)
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memset( out_ptr, s, num );
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else
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{
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if(x & 1)
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{
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s = ((s >> 4) & 0x0f) | ((s << 4) & 0xf0);
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*out_ptr = (*out_ptr & 0xf0) | (s & 0x0f);
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out_ptr++;
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x++;
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num--;
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}
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/* this will write one too many if num is odd, but that doesn't matter */
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if (num) memset( out_ptr, s, (num + 1) / 2 );
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}
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}
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x += num;
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right = x;
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}
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else
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{
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if (data < 3)
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{
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if(left != right && clip)
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{
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SetRectRgn( run, left, y, right, y + 1 );
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CombineRgn( *clip, run, *clip, RGN_OR );
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}
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switch (data)
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{
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case 0: /* eol */
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left = right = x = 0;
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y--;
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if(y < 0) goto done;
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break;
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case 1: /* eod */
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goto done;
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case 2: /* delta */
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if (i >= info->bmiHeader.biSizeImage - 1) goto done;
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x += in_bits[i];
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if (x > width) x = width;
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left = right = x;
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y -= in_bits[i + 1];
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if(y < 0) goto done;
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i += 2;
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}
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}
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else /* data bytes of data */
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{
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num = data;
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skip = (num * info->bmiHeader.biBitCount + 7) / 8;
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if (skip > info->bmiHeader.biSizeImage - i) goto done;
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skip = (skip + 1) & ~1;
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if (x + num > width) num = width - x;
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if (num)
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{
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BYTE *out_ptr = get_pixel_ptr( info, out_bits, x, y );
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if (info->bmiHeader.biBitCount == 8)
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memcpy( out_ptr, in_bits + i, num );
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else
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{
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if(x & 1)
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{
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const BYTE *in_ptr = in_bits + i;
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for ( ; num; num--, x++)
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{
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if (x & 1)
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{
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*out_ptr = (*out_ptr & 0xf0) | ((*in_ptr >> 4) & 0x0f);
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out_ptr++;
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}
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else
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*out_ptr = (*in_ptr++ << 4) & 0xf0;
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}
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}
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else
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memcpy( out_ptr, in_bits + i, (num + 1) / 2);
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}
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}
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x += num;
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right = x;
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i += skip;
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}
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}
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}
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done:
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if (run) DeleteObject( run );
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if (bits->free) bits->free( bits );
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|
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bits->ptr = out_bits;
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bits->is_copy = TRUE;
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bits->free = free_heap_bits;
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return TRUE;
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fail:
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if (run) DeleteObject( run );
|
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if (clip && *clip) DeleteObject( *clip );
|
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HeapFree( GetProcessHeap(), 0, out_bits );
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return FALSE;
|
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}
|
|
|
|
|
|
|
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INT nulldrv_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 *src_info, UINT coloruse, DWORD rop )
|
|
{
|
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DC *dc = get_nulldrv_dc( dev );
|
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char dst_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
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BITMAPINFO *dst_info = (BITMAPINFO *)dst_buffer;
|
|
struct bitblt_coords src, dst;
|
|
struct gdi_image_bits src_bits;
|
|
DWORD err;
|
|
HRGN clip = NULL;
|
|
INT ret = 0;
|
|
INT height = abs( src_info->bmiHeader.biHeight );
|
|
BOOL top_down = src_info->bmiHeader.biHeight < 0, non_stretch_from_origin = FALSE;
|
|
RECT rect;
|
|
|
|
TRACE("%d %d %d %d <- %d %d %d %d rop %08x\n", xDst, yDst, widthDst, heightDst,
|
|
xSrc, ySrc, widthSrc, heightSrc, rop);
|
|
|
|
src_bits.ptr = (void*)bits;
|
|
src_bits.is_copy = FALSE;
|
|
src_bits.free = NULL;
|
|
|
|
if (coloruse == DIB_PAL_COLORS && !fill_color_table_from_pal_colors( src_info, dev->hdc )) return 0;
|
|
|
|
rect.left = xDst;
|
|
rect.top = yDst;
|
|
rect.right = xDst + widthDst;
|
|
rect.bottom = yDst + heightDst;
|
|
LPtoDP( dc->hSelf, (POINT *)&rect, 2 );
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dst.x = rect.left;
|
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dst.y = rect.top;
|
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dst.width = rect.right - rect.left;
|
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dst.height = rect.bottom - rect.top;
|
|
|
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if (dc->layout & LAYOUT_RTL && rop & NOMIRRORBITMAP)
|
|
{
|
|
dst.x += dst.width;
|
|
dst.width = -dst.width;
|
|
}
|
|
rop &= ~NOMIRRORBITMAP;
|
|
|
|
src.x = xSrc;
|
|
src.width = widthSrc;
|
|
src.y = ySrc;
|
|
src.height = heightSrc;
|
|
|
|
if (src.x == 0 && src.y == 0 && src.width == dst.width && src.height == dst.height)
|
|
non_stretch_from_origin = TRUE;
|
|
|
|
if (src_info->bmiHeader.biCompression == BI_RLE4 || src_info->bmiHeader.biCompression == BI_RLE8)
|
|
{
|
|
BOOL want_clip = non_stretch_from_origin && (rop == SRCCOPY);
|
|
if (!build_rle_bitmap( src_info, &src_bits, want_clip ? &clip : NULL )) return 0;
|
|
}
|
|
|
|
if (rop != SRCCOPY || non_stretch_from_origin)
|
|
{
|
|
if (dst.width == 1 && src.width > 1) src.width--;
|
|
if (dst.height == 1 && src.height > 1) src.height--;
|
|
}
|
|
|
|
if (rop != SRCCOPY)
|
|
{
|
|
if (dst.width < 0 && dst.width == src.width)
|
|
{
|
|
/* This is off-by-one, but that's what Windows does */
|
|
dst.x += dst.width;
|
|
src.x += src.width;
|
|
dst.width = -dst.width;
|
|
src.width = -src.width;
|
|
}
|
|
if (dst.height < 0 && dst.height == src.height)
|
|
{
|
|
dst.y += dst.height;
|
|
src.y += src.height;
|
|
dst.height = -dst.height;
|
|
src.height = -src.height;
|
|
}
|
|
}
|
|
|
|
if (!top_down || (rop == SRCCOPY && !non_stretch_from_origin)) src.y = height - src.y - src.height;
|
|
|
|
if (src.y >= height && src.y + src.height + 1 < height)
|
|
src.y = height - 1;
|
|
else if (src.y > 0 && src.y + src.height + 1 < 0)
|
|
src.y = -src.height - 1;
|
|
|
|
get_bounding_rect( &rect, src.x, src.y, src.width, src.height );
|
|
|
|
src.visrect.left = 0;
|
|
src.visrect.right = src_info->bmiHeader.biWidth;
|
|
src.visrect.top = 0;
|
|
src.visrect.bottom = height;
|
|
if (!intersect_rect( &src.visrect, &src.visrect, &rect )) goto done;
|
|
|
|
get_bounding_rect( &rect, dst.x, dst.y, dst.width, dst.height );
|
|
|
|
if (!clip_visrect( dc, &dst.visrect, &rect )) goto done;
|
|
|
|
if (!intersect_vis_rectangles( &dst, &src )) goto done;
|
|
|
|
if (clip) OffsetRgn( clip, dst.x - src.x, dst.y - src.y );
|
|
|
|
dev = GET_DC_PHYSDEV( dc, pPutImage );
|
|
copy_bitmapinfo( dst_info, src_info );
|
|
err = dev->funcs->pPutImage( dev, 0, clip, dst_info, &src_bits, &src, &dst, rop );
|
|
if (err == ERROR_BAD_FORMAT)
|
|
{
|
|
/* 1-bpp destination without a color table requires a fake 1-entry table
|
|
* that contains only the background color */
|
|
if (dst_info->bmiHeader.biBitCount == 1 && !dst_info->bmiHeader.biClrUsed)
|
|
{
|
|
COLORREF color = GetBkColor( dev->hdc );
|
|
dst_info->bmiColors[0].rgbRed = GetRValue( color );
|
|
dst_info->bmiColors[0].rgbGreen = GetGValue( color );
|
|
dst_info->bmiColors[0].rgbBlue = GetBValue( color );
|
|
dst_info->bmiColors[0].rgbReserved = 0;
|
|
dst_info->bmiHeader.biClrUsed = 1;
|
|
}
|
|
|
|
if (!(err = convert_bits( src_info, &src, dst_info, &src_bits, FALSE )))
|
|
{
|
|
/* get rid of the fake 1-bpp table */
|
|
if (dst_info->bmiHeader.biClrUsed == 1) dst_info->bmiHeader.biClrUsed = 0;
|
|
err = dev->funcs->pPutImage( dev, 0, clip, dst_info, &src_bits, &src, &dst, rop );
|
|
}
|
|
}
|
|
|
|
if (err == ERROR_TRANSFORM_NOT_SUPPORTED)
|
|
{
|
|
copy_bitmapinfo( src_info, dst_info );
|
|
err = stretch_bits( src_info, &src, dst_info, &dst, &src_bits, GetStretchBltMode( dev->hdc ) );
|
|
if (!err) err = dev->funcs->pPutImage( dev, 0, NULL, dst_info, &src_bits, &src, &dst, rop );
|
|
}
|
|
if (err) ret = 0;
|
|
else if (rop == SRCCOPY) ret = height;
|
|
else ret = src_info->bmiHeader.biHeight;
|
|
|
|
done:
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
if (clip) DeleteObject( clip );
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* StretchDIBits (GDI32.@)
|
|
*/
|
|
INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst, INT heightDst,
|
|
INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, const void *bits,
|
|
const BITMAPINFO *bmi, UINT coloruse, DWORD rop )
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *info = (BITMAPINFO *)buffer;
|
|
DC *dc;
|
|
INT ret = 0;
|
|
|
|
if (!bits) return 0;
|
|
if (!bitmapinfo_from_user_bitmapinfo( info, bmi, coloruse, TRUE ))
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pStretchDIBits );
|
|
update_dc( dc );
|
|
ret = physdev->funcs->pStretchDIBits( physdev, xDst, yDst, widthDst, heightDst,
|
|
xSrc, ySrc, widthSrc, heightSrc, bits, info, coloruse, rop );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SetDIBits [GDI32.@]
|
|
*
|
|
* Sets pixels in a bitmap using colors from DIB.
|
|
*
|
|
* PARAMS
|
|
* hdc [I] Handle to device context
|
|
* hbitmap [I] Handle to bitmap
|
|
* startscan [I] Starting scan line
|
|
* lines [I] Number of scan lines
|
|
* bits [I] Array of bitmap bits
|
|
* info [I] Address of structure with data
|
|
* coloruse [I] Type of color indexes to use
|
|
*
|
|
* RETURNS
|
|
* Success: Number of scan lines copied
|
|
* Failure: 0
|
|
*/
|
|
INT WINAPI SetDIBits( HDC hdc, HBITMAP hbitmap, UINT startscan,
|
|
UINT lines, LPCVOID bits, const BITMAPINFO *info,
|
|
UINT coloruse )
|
|
{
|
|
BITMAPOBJ *bitmap;
|
|
char src_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *src_info = (BITMAPINFO *)src_bmibuf;
|
|
char dst_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *dst_info = (BITMAPINFO *)dst_bmibuf;
|
|
INT result = 0;
|
|
DWORD err;
|
|
struct gdi_image_bits src_bits;
|
|
struct bitblt_coords src, dst;
|
|
INT src_to_dst_offset;
|
|
HRGN clip = 0;
|
|
const struct gdi_dc_funcs *funcs;
|
|
|
|
if (!bitmapinfo_from_user_bitmapinfo( src_info, info, coloruse, TRUE ))
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
if (src_info->bmiHeader.biCompression == BI_BITFIELDS)
|
|
{
|
|
DWORD *masks = (DWORD *)src_info->bmiColors;
|
|
if (!masks[0] || !masks[1] || !masks[2])
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
src_bits.ptr = (void *)bits;
|
|
src_bits.is_copy = FALSE;
|
|
src_bits.free = NULL;
|
|
src_bits.param = NULL;
|
|
|
|
if (coloruse == DIB_PAL_COLORS && !fill_color_table_from_pal_colors( src_info, hdc )) return 0;
|
|
|
|
if (!(bitmap = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return 0;
|
|
|
|
if (src_info->bmiHeader.biCompression == BI_RLE4 || src_info->bmiHeader.biCompression == BI_RLE8)
|
|
{
|
|
if (lines == 0) goto done;
|
|
else lines = src_info->bmiHeader.biHeight;
|
|
startscan = 0;
|
|
|
|
if (!build_rle_bitmap( src_info, &src_bits, &clip )) goto done;
|
|
}
|
|
|
|
dst.visrect.left = 0;
|
|
dst.visrect.top = 0;
|
|
dst.visrect.right = bitmap->bitmap.bmWidth;
|
|
dst.visrect.bottom = bitmap->bitmap.bmHeight;
|
|
|
|
src.visrect.left = 0;
|
|
src.visrect.top = 0;
|
|
src.visrect.right = src_info->bmiHeader.biWidth;
|
|
src.visrect.bottom = abs( src_info->bmiHeader.biHeight );
|
|
|
|
if (src_info->bmiHeader.biHeight > 0)
|
|
{
|
|
src_to_dst_offset = -startscan;
|
|
lines = min( lines, src.visrect.bottom - startscan );
|
|
if (lines < src.visrect.bottom) src.visrect.top = src.visrect.bottom - lines;
|
|
}
|
|
else
|
|
{
|
|
src_to_dst_offset = src.visrect.bottom - lines - startscan;
|
|
/* Unlike the bottom-up case, Windows doesn't limit lines. */
|
|
if (lines < src.visrect.bottom) src.visrect.bottom = lines;
|
|
}
|
|
|
|
funcs = get_bitmap_funcs( bitmap );
|
|
|
|
result = lines;
|
|
|
|
offset_rect( &src.visrect, 0, src_to_dst_offset );
|
|
if (!intersect_rect( &dst.visrect, &src.visrect, &dst.visrect )) goto done;
|
|
src.visrect = dst.visrect;
|
|
offset_rect( &src.visrect, 0, -src_to_dst_offset );
|
|
|
|
src.x = src.visrect.left;
|
|
src.y = src.visrect.top;
|
|
src.width = src.visrect.right - src.visrect.left;
|
|
src.height = src.visrect.bottom - src.visrect.top;
|
|
|
|
dst.x = dst.visrect.left;
|
|
dst.y = dst.visrect.top;
|
|
dst.width = dst.visrect.right - dst.visrect.left;
|
|
dst.height = dst.visrect.bottom - dst.visrect.top;
|
|
|
|
copy_bitmapinfo( dst_info, src_info );
|
|
|
|
err = funcs->pPutImage( NULL, hbitmap, clip, dst_info, &src_bits, &src, &dst, 0 );
|
|
if (err == ERROR_BAD_FORMAT)
|
|
{
|
|
err = convert_bits( src_info, &src, dst_info, &src_bits, FALSE );
|
|
if (!err) err = funcs->pPutImage( NULL, hbitmap, clip, dst_info, &src_bits, &src, &dst, 0 );
|
|
}
|
|
if(err) result = 0;
|
|
|
|
done:
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
if (clip) DeleteObject( clip );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return result;
|
|
}
|
|
|
|
|
|
INT nulldrv_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD cx, DWORD cy,
|
|
INT x_src, INT y_src, UINT startscan, UINT lines,
|
|
const void *bits, BITMAPINFO *src_info, UINT coloruse )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
char dst_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *dst_info = (BITMAPINFO *)dst_buffer;
|
|
struct bitblt_coords src, dst;
|
|
struct gdi_image_bits src_bits;
|
|
HRGN clip = 0;
|
|
DWORD err;
|
|
UINT height;
|
|
BOOL top_down;
|
|
POINT pt;
|
|
RECT rect;
|
|
|
|
top_down = (src_info->bmiHeader.biHeight < 0);
|
|
height = abs( src_info->bmiHeader.biHeight );
|
|
|
|
src_bits.ptr = (void *)bits;
|
|
src_bits.is_copy = FALSE;
|
|
src_bits.free = NULL;
|
|
|
|
if (!lines) return 0;
|
|
if (coloruse == DIB_PAL_COLORS && !fill_color_table_from_pal_colors( src_info, dev->hdc )) return 0;
|
|
|
|
if (src_info->bmiHeader.biCompression == BI_RLE4 || src_info->bmiHeader.biCompression == BI_RLE8)
|
|
{
|
|
startscan = 0;
|
|
lines = height;
|
|
src_info->bmiHeader.biWidth = x_src + cx;
|
|
src_info->bmiHeader.biHeight = y_src + cy;
|
|
if (src_info->bmiHeader.biWidth <= 0 || src_info->bmiHeader.biHeight <= 0) return 0;
|
|
src.x = x_src;
|
|
src.y = 0;
|
|
src.width = cx;
|
|
src.height = cy;
|
|
if (!build_rle_bitmap( src_info, &src_bits, &clip )) return 0;
|
|
}
|
|
else
|
|
{
|
|
if (startscan >= height) return 0;
|
|
if (!top_down && lines > height - startscan) lines = height - startscan;
|
|
|
|
/* map src to top-down coordinates with startscan as origin */
|
|
src.x = x_src;
|
|
src.y = startscan + lines - (y_src + cy);
|
|
src.width = cx;
|
|
src.height = cy;
|
|
if (src.y > 0)
|
|
{
|
|
if (!top_down)
|
|
{
|
|
/* get rid of unnecessary lines */
|
|
if (src.y >= lines) return 0;
|
|
lines -= src.y;
|
|
src.y = 0;
|
|
}
|
|
else if (src.y >= lines) return lines;
|
|
}
|
|
src_info->bmiHeader.biHeight = top_down ? -lines : lines;
|
|
}
|
|
|
|
src.visrect.left = src.x;
|
|
src.visrect.top = src.y;
|
|
src.visrect.right = src.x + cx;
|
|
src.visrect.bottom = src.y + cy;
|
|
rect.left = 0;
|
|
rect.top = 0;
|
|
rect.right = src_info->bmiHeader.biWidth;
|
|
rect.bottom = abs( src_info->bmiHeader.biHeight );
|
|
if (!intersect_rect( &src.visrect, &src.visrect, &rect ))
|
|
{
|
|
lines = 0;
|
|
goto done;
|
|
}
|
|
|
|
pt.x = x_dst;
|
|
pt.y = y_dst;
|
|
LPtoDP( dev->hdc, &pt, 1 );
|
|
dst.x = pt.x;
|
|
dst.y = pt.y;
|
|
dst.width = cx;
|
|
dst.height = cy;
|
|
if (GetLayout( dev->hdc ) & LAYOUT_RTL) dst.x -= cx - 1;
|
|
|
|
rect.left = dst.x;
|
|
rect.top = dst.y;
|
|
rect.right = dst.x + cx;
|
|
rect.bottom = dst.y + cy;
|
|
if (!clip_visrect( dc, &dst.visrect, &rect )) goto done;
|
|
|
|
offset_rect( &src.visrect, dst.x - src.x, dst.y - src.y );
|
|
intersect_rect( &rect, &src.visrect, &dst.visrect );
|
|
src.visrect = dst.visrect = rect;
|
|
offset_rect( &src.visrect, src.x - dst.x, src.y - dst.y );
|
|
if (is_rect_empty( &dst.visrect )) goto done;
|
|
if (clip) OffsetRgn( clip, dst.x - src.x, dst.y - src.y );
|
|
|
|
dev = GET_DC_PHYSDEV( dc, pPutImage );
|
|
copy_bitmapinfo( dst_info, src_info );
|
|
err = dev->funcs->pPutImage( dev, 0, clip, dst_info, &src_bits, &src, &dst, SRCCOPY );
|
|
if (err == ERROR_BAD_FORMAT)
|
|
{
|
|
err = convert_bits( src_info, &src, dst_info, &src_bits, FALSE );
|
|
if (!err) err = dev->funcs->pPutImage( dev, 0, clip, dst_info, &src_bits, &src, &dst, SRCCOPY );
|
|
}
|
|
if (err) lines = 0;
|
|
|
|
done:
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
if (clip) DeleteObject( clip );
|
|
return lines;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SetDIBitsToDevice (GDI32.@)
|
|
*/
|
|
INT WINAPI SetDIBitsToDevice(HDC hdc, INT xDest, INT yDest, DWORD cx,
|
|
DWORD cy, INT xSrc, INT ySrc, UINT startscan,
|
|
UINT lines, LPCVOID bits, const BITMAPINFO *bmi,
|
|
UINT coloruse )
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *info = (BITMAPINFO *)buffer;
|
|
INT ret = 0;
|
|
DC *dc;
|
|
|
|
if (!bits) return 0;
|
|
if (!bitmapinfo_from_user_bitmapinfo( info, bmi, coloruse, TRUE ))
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDIBitsToDevice );
|
|
update_dc( dc );
|
|
ret = physdev->funcs->pSetDIBitsToDevice( physdev, xDest, yDest, cx, cy, xSrc,
|
|
ySrc, startscan, lines, bits, info, coloruse );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SetDIBColorTable (GDI32.@)
|
|
*/
|
|
UINT WINAPI SetDIBColorTable( HDC hdc, UINT startpos, UINT entries, CONST RGBQUAD *colors )
|
|
{
|
|
DC * dc;
|
|
UINT result = 0;
|
|
BITMAPOBJ * bitmap;
|
|
|
|
if (!(dc = get_dc_ptr( hdc ))) return 0;
|
|
|
|
if ((bitmap = GDI_GetObjPtr( dc->hBitmap, OBJ_BITMAP )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDIBColorTable );
|
|
|
|
/* Check if currently selected bitmap is a DIB */
|
|
if (bitmap->color_table)
|
|
{
|
|
if (startpos < bitmap->dib->dsBmih.biClrUsed)
|
|
{
|
|
result = min( entries, bitmap->dib->dsBmih.biClrUsed - startpos );
|
|
memcpy(bitmap->color_table + startpos, colors, result * sizeof(RGBQUAD));
|
|
}
|
|
}
|
|
GDI_ReleaseObj( dc->hBitmap );
|
|
physdev->funcs->pSetDIBColorTable( physdev, startpos, entries, colors );
|
|
}
|
|
release_dc_ptr( dc );
|
|
return result;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDIBColorTable (GDI32.@)
|
|
*/
|
|
UINT WINAPI GetDIBColorTable( HDC hdc, UINT startpos, UINT entries, RGBQUAD *colors )
|
|
{
|
|
DC * dc;
|
|
BITMAPOBJ *bitmap;
|
|
UINT result = 0;
|
|
|
|
if (!(dc = get_dc_ptr( hdc ))) return 0;
|
|
|
|
if ((bitmap = GDI_GetObjPtr( dc->hBitmap, OBJ_BITMAP )))
|
|
{
|
|
/* Check if currently selected bitmap is a DIB */
|
|
if (bitmap->color_table)
|
|
{
|
|
if (startpos < bitmap->dib->dsBmih.biClrUsed)
|
|
{
|
|
result = min( entries, bitmap->dib->dsBmih.biClrUsed - startpos );
|
|
memcpy(colors, bitmap->color_table + startpos, result * sizeof(RGBQUAD));
|
|
}
|
|
}
|
|
GDI_ReleaseObj( dc->hBitmap );
|
|
}
|
|
release_dc_ptr( dc );
|
|
return result;
|
|
}
|
|
|
|
static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
|
|
static const DWORD bit_fields_565[3] = {0xf800, 0x07e0, 0x001f};
|
|
static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
|
|
|
|
static int fill_query_info( BITMAPINFO *info, BITMAPOBJ *bmp )
|
|
{
|
|
BITMAPINFOHEADER header;
|
|
|
|
header.biSize = info->bmiHeader.biSize; /* Ensure we don't overwrite the original size when we copy back */
|
|
header.biWidth = bmp->bitmap.bmWidth;
|
|
header.biHeight = bmp->bitmap.bmHeight;
|
|
header.biPlanes = 1;
|
|
|
|
if (bmp->dib)
|
|
{
|
|
header.biBitCount = bmp->dib->dsBm.bmBitsPixel;
|
|
switch (bmp->dib->dsBm.bmBitsPixel)
|
|
{
|
|
case 16:
|
|
case 32:
|
|
header.biCompression = BI_BITFIELDS;
|
|
break;
|
|
default:
|
|
header.biCompression = BI_RGB;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
header.biCompression = (bmp->bitmap.bmBitsPixel > 8) ? BI_BITFIELDS : BI_RGB;
|
|
header.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
}
|
|
|
|
header.biSizeImage = get_dib_image_size( (BITMAPINFO *)&header );
|
|
header.biXPelsPerMeter = 0;
|
|
header.biYPelsPerMeter = 0;
|
|
header.biClrUsed = 0;
|
|
header.biClrImportant = 0;
|
|
|
|
if ( info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER) )
|
|
{
|
|
BITMAPCOREHEADER *coreheader = (BITMAPCOREHEADER *)info;
|
|
|
|
coreheader->bcWidth = header.biWidth;
|
|
coreheader->bcHeight = header.biHeight;
|
|
coreheader->bcPlanes = header.biPlanes;
|
|
coreheader->bcBitCount = header.biBitCount;
|
|
}
|
|
else
|
|
info->bmiHeader = header;
|
|
|
|
return abs(bmp->bitmap.bmHeight);
|
|
}
|
|
|
|
/************************************************************************
|
|
* copy_color_info
|
|
*
|
|
* Copy BITMAPINFO color information where dst may be a BITMAPCOREINFO.
|
|
*/
|
|
static void copy_color_info(BITMAPINFO *dst, const BITMAPINFO *src, UINT coloruse)
|
|
{
|
|
assert( src->bmiHeader.biSize == sizeof(BITMAPINFOHEADER) );
|
|
|
|
if (dst->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
|
|
{
|
|
BITMAPCOREINFO *core = (BITMAPCOREINFO *)dst;
|
|
if (coloruse == DIB_PAL_COLORS)
|
|
memcpy( core->bmciColors, src->bmiColors, src->bmiHeader.biClrUsed * sizeof(WORD) );
|
|
else
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < src->bmiHeader.biClrUsed; i++)
|
|
{
|
|
core->bmciColors[i].rgbtRed = src->bmiColors[i].rgbRed;
|
|
core->bmciColors[i].rgbtGreen = src->bmiColors[i].rgbGreen;
|
|
core->bmciColors[i].rgbtBlue = src->bmiColors[i].rgbBlue;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dst->bmiHeader.biClrUsed = src->bmiHeader.biClrUsed;
|
|
dst->bmiHeader.biSizeImage = src->bmiHeader.biSizeImage;
|
|
|
|
if (src->bmiHeader.biCompression == BI_BITFIELDS)
|
|
/* bitfields are always at bmiColors even in larger structures */
|
|
memcpy( dst->bmiColors, src->bmiColors, 3 * sizeof(DWORD) );
|
|
else if (src->bmiHeader.biClrUsed)
|
|
{
|
|
void *colorptr = (char *)dst + dst->bmiHeader.biSize;
|
|
unsigned int size;
|
|
|
|
if (coloruse == DIB_PAL_COLORS)
|
|
size = src->bmiHeader.biClrUsed * sizeof(WORD);
|
|
else
|
|
size = src->bmiHeader.biClrUsed * sizeof(RGBQUAD);
|
|
memcpy( colorptr, src->bmiColors, size );
|
|
}
|
|
}
|
|
}
|
|
|
|
const RGBQUAD *get_default_color_table( int bpp )
|
|
{
|
|
static const RGBQUAD table_1[2] =
|
|
{
|
|
{ 0x00, 0x00, 0x00 }, { 0xff, 0xff, 0xff }
|
|
};
|
|
static const RGBQUAD table_4[16] =
|
|
{
|
|
{ 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x80 }, { 0x00, 0x80, 0x00 }, { 0x00, 0x80, 0x80 },
|
|
{ 0x80, 0x00, 0x00 }, { 0x80, 0x00, 0x80 }, { 0x80, 0x80, 0x00 }, { 0x80, 0x80, 0x80 },
|
|
{ 0xc0, 0xc0, 0xc0 }, { 0x00, 0x00, 0xff }, { 0x00, 0xff, 0x00 }, { 0x00, 0xff, 0xff },
|
|
{ 0xff, 0x00, 0x00 }, { 0xff, 0x00, 0xff }, { 0xff, 0xff, 0x00 }, { 0xff, 0xff, 0xff },
|
|
};
|
|
static const RGBQUAD table_8[256] =
|
|
{
|
|
/* first and last 10 entries are the default system palette entries */
|
|
{ 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x80 }, { 0x00, 0x80, 0x00 }, { 0x00, 0x80, 0x80 },
|
|
{ 0x80, 0x00, 0x00 }, { 0x80, 0x00, 0x80 }, { 0x80, 0x80, 0x00 }, { 0xc0, 0xc0, 0xc0 },
|
|
{ 0xc0, 0xdc, 0xc0 }, { 0xf0, 0xca, 0xa6 }, { 0x00, 0x20, 0x40 }, { 0x00, 0x20, 0x60 },
|
|
{ 0x00, 0x20, 0x80 }, { 0x00, 0x20, 0xa0 }, { 0x00, 0x20, 0xc0 }, { 0x00, 0x20, 0xe0 },
|
|
{ 0x00, 0x40, 0x00 }, { 0x00, 0x40, 0x20 }, { 0x00, 0x40, 0x40 }, { 0x00, 0x40, 0x60 },
|
|
{ 0x00, 0x40, 0x80 }, { 0x00, 0x40, 0xa0 }, { 0x00, 0x40, 0xc0 }, { 0x00, 0x40, 0xe0 },
|
|
{ 0x00, 0x60, 0x00 }, { 0x00, 0x60, 0x20 }, { 0x00, 0x60, 0x40 }, { 0x00, 0x60, 0x60 },
|
|
{ 0x00, 0x60, 0x80 }, { 0x00, 0x60, 0xa0 }, { 0x00, 0x60, 0xc0 }, { 0x00, 0x60, 0xe0 },
|
|
{ 0x00, 0x80, 0x00 }, { 0x00, 0x80, 0x20 }, { 0x00, 0x80, 0x40 }, { 0x00, 0x80, 0x60 },
|
|
{ 0x00, 0x80, 0x80 }, { 0x00, 0x80, 0xa0 }, { 0x00, 0x80, 0xc0 }, { 0x00, 0x80, 0xe0 },
|
|
{ 0x00, 0xa0, 0x00 }, { 0x00, 0xa0, 0x20 }, { 0x00, 0xa0, 0x40 }, { 0x00, 0xa0, 0x60 },
|
|
{ 0x00, 0xa0, 0x80 }, { 0x00, 0xa0, 0xa0 }, { 0x00, 0xa0, 0xc0 }, { 0x00, 0xa0, 0xe0 },
|
|
{ 0x00, 0xc0, 0x00 }, { 0x00, 0xc0, 0x20 }, { 0x00, 0xc0, 0x40 }, { 0x00, 0xc0, 0x60 },
|
|
{ 0x00, 0xc0, 0x80 }, { 0x00, 0xc0, 0xa0 }, { 0x00, 0xc0, 0xc0 }, { 0x00, 0xc0, 0xe0 },
|
|
{ 0x00, 0xe0, 0x00 }, { 0x00, 0xe0, 0x20 }, { 0x00, 0xe0, 0x40 }, { 0x00, 0xe0, 0x60 },
|
|
{ 0x00, 0xe0, 0x80 }, { 0x00, 0xe0, 0xa0 }, { 0x00, 0xe0, 0xc0 }, { 0x00, 0xe0, 0xe0 },
|
|
{ 0x40, 0x00, 0x00 }, { 0x40, 0x00, 0x20 }, { 0x40, 0x00, 0x40 }, { 0x40, 0x00, 0x60 },
|
|
{ 0x40, 0x00, 0x80 }, { 0x40, 0x00, 0xa0 }, { 0x40, 0x00, 0xc0 }, { 0x40, 0x00, 0xe0 },
|
|
{ 0x40, 0x20, 0x00 }, { 0x40, 0x20, 0x20 }, { 0x40, 0x20, 0x40 }, { 0x40, 0x20, 0x60 },
|
|
{ 0x40, 0x20, 0x80 }, { 0x40, 0x20, 0xa0 }, { 0x40, 0x20, 0xc0 }, { 0x40, 0x20, 0xe0 },
|
|
{ 0x40, 0x40, 0x00 }, { 0x40, 0x40, 0x20 }, { 0x40, 0x40, 0x40 }, { 0x40, 0x40, 0x60 },
|
|
{ 0x40, 0x40, 0x80 }, { 0x40, 0x40, 0xa0 }, { 0x40, 0x40, 0xc0 }, { 0x40, 0x40, 0xe0 },
|
|
{ 0x40, 0x60, 0x00 }, { 0x40, 0x60, 0x20 }, { 0x40, 0x60, 0x40 }, { 0x40, 0x60, 0x60 },
|
|
{ 0x40, 0x60, 0x80 }, { 0x40, 0x60, 0xa0 }, { 0x40, 0x60, 0xc0 }, { 0x40, 0x60, 0xe0 },
|
|
{ 0x40, 0x80, 0x00 }, { 0x40, 0x80, 0x20 }, { 0x40, 0x80, 0x40 }, { 0x40, 0x80, 0x60 },
|
|
{ 0x40, 0x80, 0x80 }, { 0x40, 0x80, 0xa0 }, { 0x40, 0x80, 0xc0 }, { 0x40, 0x80, 0xe0 },
|
|
{ 0x40, 0xa0, 0x00 }, { 0x40, 0xa0, 0x20 }, { 0x40, 0xa0, 0x40 }, { 0x40, 0xa0, 0x60 },
|
|
{ 0x40, 0xa0, 0x80 }, { 0x40, 0xa0, 0xa0 }, { 0x40, 0xa0, 0xc0 }, { 0x40, 0xa0, 0xe0 },
|
|
{ 0x40, 0xc0, 0x00 }, { 0x40, 0xc0, 0x20 }, { 0x40, 0xc0, 0x40 }, { 0x40, 0xc0, 0x60 },
|
|
{ 0x40, 0xc0, 0x80 }, { 0x40, 0xc0, 0xa0 }, { 0x40, 0xc0, 0xc0 }, { 0x40, 0xc0, 0xe0 },
|
|
{ 0x40, 0xe0, 0x00 }, { 0x40, 0xe0, 0x20 }, { 0x40, 0xe0, 0x40 }, { 0x40, 0xe0, 0x60 },
|
|
{ 0x40, 0xe0, 0x80 }, { 0x40, 0xe0, 0xa0 }, { 0x40, 0xe0, 0xc0 }, { 0x40, 0xe0, 0xe0 },
|
|
{ 0x80, 0x00, 0x00 }, { 0x80, 0x00, 0x20 }, { 0x80, 0x00, 0x40 }, { 0x80, 0x00, 0x60 },
|
|
{ 0x80, 0x00, 0x80 }, { 0x80, 0x00, 0xa0 }, { 0x80, 0x00, 0xc0 }, { 0x80, 0x00, 0xe0 },
|
|
{ 0x80, 0x20, 0x00 }, { 0x80, 0x20, 0x20 }, { 0x80, 0x20, 0x40 }, { 0x80, 0x20, 0x60 },
|
|
{ 0x80, 0x20, 0x80 }, { 0x80, 0x20, 0xa0 }, { 0x80, 0x20, 0xc0 }, { 0x80, 0x20, 0xe0 },
|
|
{ 0x80, 0x40, 0x00 }, { 0x80, 0x40, 0x20 }, { 0x80, 0x40, 0x40 }, { 0x80, 0x40, 0x60 },
|
|
{ 0x80, 0x40, 0x80 }, { 0x80, 0x40, 0xa0 }, { 0x80, 0x40, 0xc0 }, { 0x80, 0x40, 0xe0 },
|
|
{ 0x80, 0x60, 0x00 }, { 0x80, 0x60, 0x20 }, { 0x80, 0x60, 0x40 }, { 0x80, 0x60, 0x60 },
|
|
{ 0x80, 0x60, 0x80 }, { 0x80, 0x60, 0xa0 }, { 0x80, 0x60, 0xc0 }, { 0x80, 0x60, 0xe0 },
|
|
{ 0x80, 0x80, 0x00 }, { 0x80, 0x80, 0x20 }, { 0x80, 0x80, 0x40 }, { 0x80, 0x80, 0x60 },
|
|
{ 0x80, 0x80, 0x80 }, { 0x80, 0x80, 0xa0 }, { 0x80, 0x80, 0xc0 }, { 0x80, 0x80, 0xe0 },
|
|
{ 0x80, 0xa0, 0x00 }, { 0x80, 0xa0, 0x20 }, { 0x80, 0xa0, 0x40 }, { 0x80, 0xa0, 0x60 },
|
|
{ 0x80, 0xa0, 0x80 }, { 0x80, 0xa0, 0xa0 }, { 0x80, 0xa0, 0xc0 }, { 0x80, 0xa0, 0xe0 },
|
|
{ 0x80, 0xc0, 0x00 }, { 0x80, 0xc0, 0x20 }, { 0x80, 0xc0, 0x40 }, { 0x80, 0xc0, 0x60 },
|
|
{ 0x80, 0xc0, 0x80 }, { 0x80, 0xc0, 0xa0 }, { 0x80, 0xc0, 0xc0 }, { 0x80, 0xc0, 0xe0 },
|
|
{ 0x80, 0xe0, 0x00 }, { 0x80, 0xe0, 0x20 }, { 0x80, 0xe0, 0x40 }, { 0x80, 0xe0, 0x60 },
|
|
{ 0x80, 0xe0, 0x80 }, { 0x80, 0xe0, 0xa0 }, { 0x80, 0xe0, 0xc0 }, { 0x80, 0xe0, 0xe0 },
|
|
{ 0xc0, 0x00, 0x00 }, { 0xc0, 0x00, 0x20 }, { 0xc0, 0x00, 0x40 }, { 0xc0, 0x00, 0x60 },
|
|
{ 0xc0, 0x00, 0x80 }, { 0xc0, 0x00, 0xa0 }, { 0xc0, 0x00, 0xc0 }, { 0xc0, 0x00, 0xe0 },
|
|
{ 0xc0, 0x20, 0x00 }, { 0xc0, 0x20, 0x20 }, { 0xc0, 0x20, 0x40 }, { 0xc0, 0x20, 0x60 },
|
|
{ 0xc0, 0x20, 0x80 }, { 0xc0, 0x20, 0xa0 }, { 0xc0, 0x20, 0xc0 }, { 0xc0, 0x20, 0xe0 },
|
|
{ 0xc0, 0x40, 0x00 }, { 0xc0, 0x40, 0x20 }, { 0xc0, 0x40, 0x40 }, { 0xc0, 0x40, 0x60 },
|
|
{ 0xc0, 0x40, 0x80 }, { 0xc0, 0x40, 0xa0 }, { 0xc0, 0x40, 0xc0 }, { 0xc0, 0x40, 0xe0 },
|
|
{ 0xc0, 0x60, 0x00 }, { 0xc0, 0x60, 0x20 }, { 0xc0, 0x60, 0x40 }, { 0xc0, 0x60, 0x60 },
|
|
{ 0xc0, 0x60, 0x80 }, { 0xc0, 0x60, 0xa0 }, { 0xc0, 0x60, 0xc0 }, { 0xc0, 0x60, 0xe0 },
|
|
{ 0xc0, 0x80, 0x00 }, { 0xc0, 0x80, 0x20 }, { 0xc0, 0x80, 0x40 }, { 0xc0, 0x80, 0x60 },
|
|
{ 0xc0, 0x80, 0x80 }, { 0xc0, 0x80, 0xa0 }, { 0xc0, 0x80, 0xc0 }, { 0xc0, 0x80, 0xe0 },
|
|
{ 0xc0, 0xa0, 0x00 }, { 0xc0, 0xa0, 0x20 }, { 0xc0, 0xa0, 0x40 }, { 0xc0, 0xa0, 0x60 },
|
|
{ 0xc0, 0xa0, 0x80 }, { 0xc0, 0xa0, 0xa0 }, { 0xc0, 0xa0, 0xc0 }, { 0xc0, 0xa0, 0xe0 },
|
|
{ 0xc0, 0xc0, 0x00 }, { 0xc0, 0xc0, 0x20 }, { 0xc0, 0xc0, 0x40 }, { 0xc0, 0xc0, 0x60 },
|
|
{ 0xc0, 0xc0, 0x80 }, { 0xc0, 0xc0, 0xa0 }, { 0xf0, 0xfb, 0xff }, { 0xa4, 0xa0, 0xa0 },
|
|
{ 0x80, 0x80, 0x80 }, { 0x00, 0x00, 0xff }, { 0x00, 0xff, 0x00 }, { 0x00, 0xff, 0xff },
|
|
{ 0xff, 0x00, 0x00 }, { 0xff, 0x00, 0xff }, { 0xff, 0xff, 0x00 }, { 0xff, 0xff, 0xff },
|
|
};
|
|
|
|
switch (bpp)
|
|
{
|
|
case 1: return table_1;
|
|
case 4: return table_4;
|
|
case 8: return table_8;
|
|
default: return NULL;
|
|
}
|
|
}
|
|
|
|
void fill_default_color_table( BITMAPINFO *info )
|
|
{
|
|
info->bmiHeader.biClrUsed = 1 << info->bmiHeader.biBitCount;
|
|
memcpy( info->bmiColors, get_default_color_table( info->bmiHeader.biBitCount ),
|
|
info->bmiHeader.biClrUsed * sizeof(RGBQUAD) );
|
|
}
|
|
|
|
void get_ddb_bitmapinfo( BITMAPOBJ *bmp, BITMAPINFO *info )
|
|
{
|
|
info->bmiHeader.biSize = sizeof(info->bmiHeader);
|
|
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
|
|
info->bmiHeader.biHeight = -bmp->bitmap.bmHeight;
|
|
info->bmiHeader.biPlanes = 1;
|
|
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
|
info->bmiHeader.biCompression = BI_RGB;
|
|
info->bmiHeader.biXPelsPerMeter = 0;
|
|
info->bmiHeader.biYPelsPerMeter = 0;
|
|
info->bmiHeader.biClrUsed = 0;
|
|
info->bmiHeader.biClrImportant = 0;
|
|
}
|
|
|
|
BITMAPINFO *copy_packed_dib( const BITMAPINFO *src_info, UINT usage )
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *ret, *info = (BITMAPINFO *)buffer;
|
|
unsigned int info_size;
|
|
|
|
if (!bitmapinfo_from_user_bitmapinfo( info, src_info, usage, FALSE )) return NULL;
|
|
|
|
info_size = get_dib_info_size( info, usage );
|
|
if ((ret = HeapAlloc( GetProcessHeap(), 0, info_size + info->bmiHeader.biSizeImage )))
|
|
{
|
|
memcpy( ret, info, info_size );
|
|
memcpy( (char *)ret + info_size, (char *)src_info + bitmap_info_size( src_info, usage ),
|
|
info->bmiHeader.biSizeImage );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* GetDIBits [GDI32.@]
|
|
*
|
|
* Retrieves bits of bitmap and copies to buffer.
|
|
*
|
|
* RETURNS
|
|
* Success: Number of scan lines copied from bitmap
|
|
* Failure: 0
|
|
*/
|
|
INT WINAPI GetDIBits(
|
|
HDC hdc, /* [in] Handle to device context */
|
|
HBITMAP hbitmap, /* [in] Handle to bitmap */
|
|
UINT startscan, /* [in] First scan line to set in dest bitmap */
|
|
UINT lines, /* [in] Number of scan lines to copy */
|
|
LPVOID bits, /* [out] Address of array for bitmap bits */
|
|
BITMAPINFO * info, /* [out] Address of structure with bitmap data */
|
|
UINT coloruse) /* [in] RGB or palette index */
|
|
{
|
|
DC * dc;
|
|
BITMAPOBJ * bmp;
|
|
int i, dst_to_src_offset, ret = 0;
|
|
DWORD err;
|
|
char dst_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *dst_info = (BITMAPINFO *)dst_bmibuf;
|
|
char src_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *src_info = (BITMAPINFO *)src_bmibuf;
|
|
const struct gdi_dc_funcs *funcs;
|
|
struct gdi_image_bits src_bits;
|
|
struct bitblt_coords src, dst;
|
|
BOOL empty_rect = FALSE;
|
|
|
|
/* Since info may be a BITMAPCOREINFO or any of the larger BITMAPINFO structures, we'll use our
|
|
own copy and transfer the colour info back at the end */
|
|
if (!bitmapinfoheader_from_user_bitmapinfo( &dst_info->bmiHeader, &info->bmiHeader )) return 0;
|
|
if (bits &&
|
|
(dst_info->bmiHeader.biCompression == BI_JPEG || dst_info->bmiHeader.biCompression == BI_PNG))
|
|
return 0;
|
|
dst_info->bmiHeader.biClrUsed = 0;
|
|
dst_info->bmiHeader.biClrImportant = 0;
|
|
|
|
if (!(dc = get_dc_ptr( hdc )))
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
update_dc( dc );
|
|
if (!(bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP )))
|
|
{
|
|
release_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
|
|
funcs = get_bitmap_funcs( bmp );
|
|
|
|
src.visrect.left = 0;
|
|
src.visrect.top = 0;
|
|
src.visrect.right = bmp->bitmap.bmWidth;
|
|
src.visrect.bottom = bmp->bitmap.bmHeight;
|
|
|
|
dst.visrect.left = 0;
|
|
dst.visrect.top = 0;
|
|
dst.visrect.right = dst_info->bmiHeader.biWidth;
|
|
dst.visrect.bottom = abs( dst_info->bmiHeader.biHeight );
|
|
|
|
if (lines == 0 || startscan >= dst.visrect.bottom)
|
|
bits = NULL;
|
|
|
|
if (!bits && dst_info->bmiHeader.biBitCount == 0) /* query bitmap info only */
|
|
{
|
|
ret = fill_query_info( info, bmp );
|
|
goto done;
|
|
}
|
|
|
|
/* validate parameters */
|
|
|
|
if (dst_info->bmiHeader.biWidth <= 0) goto done;
|
|
if (dst_info->bmiHeader.biHeight == 0) goto done;
|
|
|
|
switch (dst_info->bmiHeader.biCompression)
|
|
{
|
|
case BI_RLE4:
|
|
if (dst_info->bmiHeader.biBitCount != 4) goto done;
|
|
if (dst_info->bmiHeader.biHeight < 0) goto done;
|
|
if (bits) goto done; /* can't retrieve compressed bits */
|
|
break;
|
|
case BI_RLE8:
|
|
if (dst_info->bmiHeader.biBitCount != 8) goto done;
|
|
if (dst_info->bmiHeader.biHeight < 0) goto done;
|
|
if (bits) goto done; /* can't retrieve compressed bits */
|
|
break;
|
|
case BI_BITFIELDS:
|
|
if (dst_info->bmiHeader.biBitCount != 16 && dst_info->bmiHeader.biBitCount != 32) goto done;
|
|
/* fall through */
|
|
case BI_RGB:
|
|
if (lines && !dst_info->bmiHeader.biPlanes) goto done;
|
|
if (dst_info->bmiHeader.biBitCount == 1) break;
|
|
if (dst_info->bmiHeader.biBitCount == 4) break;
|
|
if (dst_info->bmiHeader.biBitCount == 8) break;
|
|
if (dst_info->bmiHeader.biBitCount == 16) break;
|
|
if (dst_info->bmiHeader.biBitCount == 24) break;
|
|
if (dst_info->bmiHeader.biBitCount == 32) break;
|
|
/* fall through */
|
|
default:
|
|
goto done;
|
|
}
|
|
|
|
if (bits)
|
|
{
|
|
if (dst_info->bmiHeader.biHeight > 0)
|
|
{
|
|
dst_to_src_offset = -startscan;
|
|
lines = min( lines, dst.visrect.bottom - startscan );
|
|
if (lines < dst.visrect.bottom) dst.visrect.top = dst.visrect.bottom - lines;
|
|
}
|
|
else
|
|
{
|
|
dst_to_src_offset = dst.visrect.bottom - lines - startscan;
|
|
if (dst_to_src_offset < 0)
|
|
{
|
|
dst_to_src_offset = 0;
|
|
lines = dst.visrect.bottom - startscan;
|
|
}
|
|
if (lines < dst.visrect.bottom) dst.visrect.bottom = lines;
|
|
}
|
|
|
|
offset_rect( &dst.visrect, 0, dst_to_src_offset );
|
|
empty_rect = !intersect_rect( &src.visrect, &src.visrect, &dst.visrect );
|
|
dst.visrect = src.visrect;
|
|
offset_rect( &dst.visrect, 0, -dst_to_src_offset );
|
|
|
|
if (dst_info->bmiHeader.biHeight > 0)
|
|
{
|
|
if (dst.visrect.bottom < dst_info->bmiHeader.biHeight)
|
|
{
|
|
int pad_lines = min( dst_info->bmiHeader.biHeight - dst.visrect.bottom, lines );
|
|
int pad_bytes = pad_lines * get_dib_stride( dst_info->bmiHeader.biWidth, dst_info->bmiHeader.biBitCount );
|
|
memset( bits, 0, pad_bytes );
|
|
bits = (char *)bits + pad_bytes;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (dst.visrect.bottom < lines)
|
|
{
|
|
int pad_lines = lines - dst.visrect.bottom;
|
|
int stride = get_dib_stride( dst_info->bmiHeader.biWidth, dst_info->bmiHeader.biBitCount );
|
|
int pad_bytes = pad_lines * stride;
|
|
memset( (char *)bits + dst.visrect.bottom * stride, 0, pad_bytes );
|
|
}
|
|
}
|
|
|
|
if (empty_rect) bits = NULL;
|
|
|
|
src.x = src.visrect.left;
|
|
src.y = src.visrect.top;
|
|
src.width = src.visrect.right - src.visrect.left;
|
|
src.height = src.visrect.bottom - src.visrect.top;
|
|
|
|
lines = src.height;
|
|
}
|
|
|
|
err = funcs->pGetImage( NULL, hbitmap, src_info, bits ? &src_bits : NULL, bits ? &src : NULL );
|
|
|
|
if (err) goto done;
|
|
|
|
/* fill out the src colour table, if it needs one */
|
|
if (src_info->bmiHeader.biBitCount <= 8 && src_info->bmiHeader.biClrUsed == 0)
|
|
fill_default_color_table( src_info );
|
|
|
|
/* if the src and dst are the same depth, copy the colour info across */
|
|
if (dst_info->bmiHeader.biBitCount == src_info->bmiHeader.biBitCount && coloruse == DIB_RGB_COLORS )
|
|
{
|
|
switch (src_info->bmiHeader.biBitCount)
|
|
{
|
|
case 16:
|
|
if (src_info->bmiHeader.biCompression == BI_RGB)
|
|
{
|
|
src_info->bmiHeader.biCompression = BI_BITFIELDS;
|
|
memcpy( src_info->bmiColors, bit_fields_555, sizeof(bit_fields_555) );
|
|
}
|
|
break;
|
|
case 32:
|
|
if (src_info->bmiHeader.biCompression == BI_RGB)
|
|
{
|
|
src_info->bmiHeader.biCompression = BI_BITFIELDS;
|
|
memcpy( src_info->bmiColors, bit_fields_888, sizeof(bit_fields_888) );
|
|
}
|
|
break;
|
|
}
|
|
src_info->bmiHeader.biSizeImage = get_dib_image_size( dst_info );
|
|
copy_color_info( dst_info, src_info, coloruse );
|
|
}
|
|
else if (dst_info->bmiHeader.biBitCount <= 8) /* otherwise construct a default colour table for the dst, if needed */
|
|
{
|
|
if( coloruse == DIB_PAL_COLORS )
|
|
{
|
|
if (!fill_color_table_from_palette( dst_info, hdc )) goto done;
|
|
}
|
|
else
|
|
{
|
|
fill_default_color_table( dst_info );
|
|
}
|
|
}
|
|
|
|
if (bits)
|
|
{
|
|
if(dst_info->bmiHeader.biHeight > 0)
|
|
dst_info->bmiHeader.biHeight = src.height;
|
|
else
|
|
dst_info->bmiHeader.biHeight = -src.height;
|
|
|
|
convert_bitmapinfo( src_info, src_bits.ptr, &src, dst_info, bits, FALSE );
|
|
if (src_bits.free) src_bits.free( &src_bits );
|
|
ret = lines;
|
|
}
|
|
else
|
|
ret = empty_rect ? FALSE : TRUE;
|
|
|
|
if (coloruse == DIB_PAL_COLORS)
|
|
{
|
|
WORD *index = (WORD *)dst_info->bmiColors;
|
|
for (i = 0; i < dst_info->bmiHeader.biClrUsed; i++, index++)
|
|
*index = i;
|
|
}
|
|
|
|
copy_color_info( info, dst_info, coloruse );
|
|
if (info->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) info->bmiHeader.biClrUsed = 0;
|
|
|
|
done:
|
|
release_dc_ptr( dc );
|
|
GDI_ReleaseObj( hbitmap );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDIBitmap (GDI32.@)
|
|
*
|
|
* Creates a DDB (device dependent bitmap) from a DIB.
|
|
* The DDB will have the same color depth as the reference DC.
|
|
*/
|
|
HBITMAP WINAPI CreateDIBitmap( HDC hdc, const BITMAPINFOHEADER *header,
|
|
DWORD init, LPCVOID bits, const BITMAPINFO *data,
|
|
UINT coloruse )
|
|
{
|
|
BITMAPINFOHEADER info;
|
|
HBITMAP handle;
|
|
LONG height;
|
|
|
|
if (!bitmapinfoheader_from_user_bitmapinfo( &info, header )) return 0;
|
|
if (info.biCompression == BI_JPEG || info.biCompression == BI_PNG) return 0;
|
|
if (info.biWidth < 0) return 0;
|
|
|
|
/* Top-down DIBs have a negative height */
|
|
height = abs( info.biHeight );
|
|
|
|
TRACE("hdc=%p, header=%p, init=%u, bits=%p, data=%p, coloruse=%u (bitmap: width=%d, height=%d, bpp=%u, compr=%u)\n",
|
|
hdc, header, init, bits, data, coloruse, info.biWidth, info.biHeight,
|
|
info.biBitCount, info.biCompression);
|
|
|
|
if (hdc == NULL)
|
|
handle = CreateBitmap( info.biWidth, height, 1, 1, NULL );
|
|
else
|
|
handle = CreateCompatibleBitmap( hdc, info.biWidth, height );
|
|
|
|
if (handle)
|
|
{
|
|
if (init & CBM_INIT)
|
|
{
|
|
if (SetDIBits( hdc, handle, 0, height, bits, data, coloruse ) == 0)
|
|
{
|
|
DeleteObject( handle );
|
|
handle = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDIBSection (GDI32.@)
|
|
*/
|
|
HBITMAP WINAPI CreateDIBSection(HDC hdc, CONST BITMAPINFO *bmi, UINT usage,
|
|
VOID **bits, HANDLE section, DWORD offset)
|
|
{
|
|
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
|
|
BITMAPINFO *info = (BITMAPINFO *)buffer;
|
|
HBITMAP ret = 0;
|
|
DC *dc;
|
|
BOOL bDesktopDC = FALSE;
|
|
DIBSECTION *dib;
|
|
BITMAPOBJ *bmp;
|
|
RGBQUAD *color_table = NULL;
|
|
void *mapBits = NULL;
|
|
|
|
if (bits) *bits = NULL;
|
|
if (!bitmapinfo_from_user_bitmapinfo( info, bmi, usage, FALSE )) return 0;
|
|
if (info->bmiHeader.biPlanes != 1)
|
|
{
|
|
if (info->bmiHeader.biPlanes * info->bmiHeader.biBitCount > 16) return 0;
|
|
WARN( "%u planes not properly supported\n", info->bmiHeader.biPlanes );
|
|
}
|
|
|
|
if (!(dib = HeapAlloc( GetProcessHeap(), 0, sizeof(*dib) ))) return 0;
|
|
|
|
TRACE("format (%d,%d), planes %d, bpp %d, %s, size %d %s\n",
|
|
info->bmiHeader.biWidth, info->bmiHeader.biHeight,
|
|
info->bmiHeader.biPlanes, info->bmiHeader.biBitCount,
|
|
info->bmiHeader.biCompression == BI_BITFIELDS? "BI_BITFIELDS" : "BI_RGB",
|
|
info->bmiHeader.biSizeImage, usage == DIB_PAL_COLORS? "PAL" : "RGB");
|
|
|
|
dib->dsBm.bmType = 0;
|
|
dib->dsBm.bmWidth = info->bmiHeader.biWidth;
|
|
dib->dsBm.bmHeight = abs( info->bmiHeader.biHeight );
|
|
dib->dsBm.bmWidthBytes = get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount );
|
|
dib->dsBm.bmPlanes = info->bmiHeader.biPlanes;
|
|
dib->dsBm.bmBitsPixel = info->bmiHeader.biBitCount;
|
|
dib->dsBm.bmBits = NULL;
|
|
dib->dsBmih = info->bmiHeader;
|
|
|
|
if (info->bmiHeader.biBitCount <= 8) /* build the color table */
|
|
{
|
|
if (usage == DIB_PAL_COLORS && !fill_color_table_from_pal_colors( info, hdc ))
|
|
goto error;
|
|
dib->dsBmih.biClrUsed = info->bmiHeader.biClrUsed;
|
|
if (!(color_table = HeapAlloc( GetProcessHeap(), 0, dib->dsBmih.biClrUsed * sizeof(RGBQUAD) )))
|
|
goto error;
|
|
memcpy( color_table, info->bmiColors, dib->dsBmih.biClrUsed * sizeof(RGBQUAD) );
|
|
}
|
|
|
|
/* set dsBitfields values */
|
|
if (info->bmiHeader.biBitCount == 16 && info->bmiHeader.biCompression == BI_RGB)
|
|
{
|
|
dib->dsBmih.biCompression = BI_BITFIELDS;
|
|
dib->dsBitfields[0] = 0x7c00;
|
|
dib->dsBitfields[1] = 0x03e0;
|
|
dib->dsBitfields[2] = 0x001f;
|
|
}
|
|
else if (info->bmiHeader.biCompression == BI_BITFIELDS)
|
|
{
|
|
if (usage == DIB_PAL_COLORS) goto error;
|
|
dib->dsBitfields[0] = *(const DWORD *)info->bmiColors;
|
|
dib->dsBitfields[1] = *((const DWORD *)info->bmiColors + 1);
|
|
dib->dsBitfields[2] = *((const DWORD *)info->bmiColors + 2);
|
|
if (!dib->dsBitfields[0] || !dib->dsBitfields[1] || !dib->dsBitfields[2]) goto error;
|
|
}
|
|
else dib->dsBitfields[0] = dib->dsBitfields[1] = dib->dsBitfields[2] = 0;
|
|
|
|
/* get storage location for DIB bits */
|
|
|
|
if (section)
|
|
{
|
|
SYSTEM_INFO SystemInfo;
|
|
DWORD mapOffset;
|
|
INT mapSize;
|
|
|
|
GetSystemInfo( &SystemInfo );
|
|
mapOffset = offset - (offset % SystemInfo.dwAllocationGranularity);
|
|
mapSize = dib->dsBmih.biSizeImage + (offset - mapOffset);
|
|
mapBits = MapViewOfFile( section, FILE_MAP_ALL_ACCESS, 0, mapOffset, mapSize );
|
|
if (mapBits) dib->dsBm.bmBits = (char *)mapBits + (offset - mapOffset);
|
|
}
|
|
else
|
|
{
|
|
offset = 0;
|
|
dib->dsBm.bmBits = VirtualAlloc( NULL, dib->dsBmih.biSizeImage,
|
|
MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
|
|
}
|
|
dib->dshSection = section;
|
|
dib->dsOffset = offset;
|
|
|
|
if (!dib->dsBm.bmBits) goto error;
|
|
|
|
/* If the reference hdc is null, take the desktop dc */
|
|
if (hdc == 0)
|
|
{
|
|
hdc = CreateCompatibleDC(0);
|
|
bDesktopDC = TRUE;
|
|
}
|
|
|
|
if (!(dc = get_dc_ptr( hdc ))) goto error;
|
|
|
|
/* create Device Dependent Bitmap and add DIB pointer */
|
|
ret = CreateBitmap( dib->dsBm.bmWidth, dib->dsBm.bmHeight, 1,
|
|
(info->bmiHeader.biBitCount == 1) ? 1 : GetDeviceCaps(hdc, BITSPIXEL), NULL );
|
|
|
|
if (ret && ((bmp = GDI_GetObjPtr(ret, OBJ_BITMAP))))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pCreateDIBSection );
|
|
bmp->dib = dib;
|
|
bmp->funcs = physdev->funcs;
|
|
bmp->color_table = color_table;
|
|
GDI_ReleaseObj( ret );
|
|
|
|
if (!physdev->funcs->pCreateDIBSection( physdev, ret, info, usage ))
|
|
{
|
|
DeleteObject( ret );
|
|
ret = 0;
|
|
}
|
|
}
|
|
|
|
release_dc_ptr( dc );
|
|
if (bDesktopDC) DeleteDC( hdc );
|
|
if (ret && bits) *bits = dib->dsBm.bmBits;
|
|
return ret;
|
|
|
|
error:
|
|
if (bDesktopDC) DeleteDC( hdc );
|
|
if (section) UnmapViewOfFile( mapBits );
|
|
else if (!offset) VirtualFree( dib->dsBm.bmBits, 0, MEM_RELEASE );
|
|
HeapFree( GetProcessHeap(), 0, color_table );
|
|
HeapFree( GetProcessHeap(), 0, dib );
|
|
return 0;
|
|
}
|