| /* |
| * GDI device-independent bitmaps |
| * |
| * Copyright 1993,1994 Alexandre Julliard |
| * |
| */ |
| |
| #include "winbase.h" |
| #include "bitmap.h" |
| #include "callback.h" |
| #include "dc.h" |
| #include "debugtools.h" |
| #include "monitor.h" |
| #include "palette.h" |
| |
| DEFAULT_DEBUG_CHANNEL(bitmap) |
| |
| /*********************************************************************** |
| * DIB_GetDIBWidthBytes |
| * |
| * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned. |
| * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/struc/src/str01.htm |
| */ |
| int DIB_GetDIBWidthBytes( int width, int depth ) |
| { |
| int words; |
| |
| switch(depth) |
| { |
| case 1: words = (width + 31) / 32; break; |
| case 4: words = (width + 7) / 8; break; |
| case 8: words = (width + 3) / 4; break; |
| case 15: |
| case 16: words = (width + 1) / 2; break; |
| case 24: words = (width * 3 + 3)/4; break; |
| |
| default: |
| WARN("(%d): Unsupported depth\n", depth ); |
| /* fall through */ |
| case 32: |
| words = width; |
| } |
| return 4 * words; |
| } |
| |
| /*********************************************************************** |
| * DIB_GetDIBImageBytes |
| * |
| * Return the number of bytes used to hold the image in a DIB bitmap. |
| */ |
| int DIB_GetDIBImageBytes( int width, int height, int depth ) |
| { |
| return DIB_GetDIBWidthBytes( width, depth ) * abs( height ); |
| } |
| |
| |
| /*********************************************************************** |
| * DIB_BitmapInfoSize |
| * |
| * Return the size of the bitmap info structure including color table. |
| */ |
| int DIB_BitmapInfoSize( const BITMAPINFO * info, WORD coloruse ) |
| { |
| int colors; |
| |
| if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) |
| { |
| BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)info; |
| colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0; |
| return sizeof(BITMAPCOREHEADER) + colors * |
| ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD)); |
| } |
| else /* assume BITMAPINFOHEADER */ |
| { |
| colors = info->bmiHeader.biClrUsed; |
| if (!colors && (info->bmiHeader.biBitCount <= 8)) |
| colors = 1 << info->bmiHeader.biBitCount; |
| return sizeof(BITMAPINFOHEADER) + colors * |
| ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD)); |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * DIB_GetBitmapInfo |
| * |
| * Get the info from a bitmap header. |
| * Return 1 for INFOHEADER, 0 for COREHEADER, -1 for error. |
| */ |
| int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, DWORD *width, |
| int *height, WORD *bpp, WORD *compr ) |
| { |
| if (header->biSize == sizeof(BITMAPINFOHEADER)) |
| { |
| *width = header->biWidth; |
| *height = header->biHeight; |
| *bpp = header->biBitCount; |
| *compr = header->biCompression; |
| return 1; |
| } |
| if (header->biSize == sizeof(BITMAPCOREHEADER)) |
| { |
| BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header; |
| *width = core->bcWidth; |
| *height = core->bcHeight; |
| *bpp = core->bcBitCount; |
| *compr = 0; |
| return 0; |
| } |
| WARN("(%ld): wrong size for header\n", header->biSize ); |
| return -1; |
| } |
| |
| |
| /*********************************************************************** |
| * StretchDIBits16 (GDI.439) |
| */ |
| INT16 WINAPI StretchDIBits16(HDC16 hdc, INT16 xDst, INT16 yDst, INT16 widthDst, |
| INT16 heightDst, INT16 xSrc, INT16 ySrc, INT16 widthSrc, |
| INT16 heightSrc, const VOID *bits, |
| const BITMAPINFO *info, UINT16 wUsage, DWORD dwRop ) |
| { |
| return (INT16)StretchDIBits( hdc, xDst, yDst, widthDst, heightDst, |
| xSrc, ySrc, widthSrc, heightSrc, bits, |
| info, wUsage, dwRop ); |
| } |
| |
| |
| /*********************************************************************** |
| * StretchDIBits32 (GDI32.351) |
| */ |
| 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 *info, UINT wUsage, DWORD dwRop ) |
| { |
| DC *dc = DC_GetDCPtr( hdc ); |
| if(!dc) return FALSE; |
| |
| if(dc->funcs->pStretchDIBits) |
| return dc->funcs->pStretchDIBits(dc, xDst, yDst, widthDst, |
| heightDst, xSrc, ySrc, widthSrc, |
| heightSrc, bits, info, wUsage, |
| dwRop); |
| else { /* use StretchBlt32 */ |
| HBITMAP hBitmap, hOldBitmap; |
| HDC hdcMem; |
| |
| hBitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT, |
| bits, info, wUsage ); |
| hdcMem = CreateCompatibleDC( hdc ); |
| hOldBitmap = SelectObject( hdcMem, hBitmap ); |
| /* Origin for DIBitmap is bottom left ! */ |
| StretchBlt( hdc, xDst, yDst, widthDst, heightDst, |
| hdcMem, xSrc, info->bmiHeader.biHeight - heightSrc - ySrc, |
| widthSrc, heightSrc, dwRop ); |
| SelectObject( hdcMem, hOldBitmap ); |
| DeleteDC( hdcMem ); |
| DeleteObject( hBitmap ); |
| return heightSrc; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * SetDIBits16 (GDI.440) |
| */ |
| INT16 WINAPI SetDIBits16( HDC16 hdc, HBITMAP16 hbitmap, UINT16 startscan, |
| UINT16 lines, LPCVOID bits, const BITMAPINFO *info, |
| UINT16 coloruse ) |
| { |
| return SetDIBits( hdc, hbitmap, startscan, lines, bits, info, coloruse ); |
| } |
| |
| |
| /****************************************************************************** |
| * SetDIBits32 [GDI32.312] 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 ) |
| { |
| DC *dc; |
| BITMAPOBJ *bitmap; |
| INT result; |
| |
| /* Check parameters */ |
| dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) |
| { |
| dc = (DC *) GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if (!dc) return 0; |
| } |
| |
| if (!(bitmap = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) |
| { |
| GDI_HEAP_UNLOCK( hdc ); |
| return 0; |
| } |
| |
| result = BITMAP_Driver->pSetDIBits(bitmap, dc, startscan, |
| lines, bits, info, |
| coloruse, hbitmap); |
| |
| GDI_HEAP_UNLOCK( hdc ); |
| GDI_HEAP_UNLOCK( hbitmap ); |
| |
| return result; |
| } |
| |
| |
| /*********************************************************************** |
| * SetDIBitsToDevice16 (GDI.443) |
| */ |
| INT16 WINAPI SetDIBitsToDevice16(HDC16 hdc, INT16 xDest, INT16 yDest, INT16 cx, |
| INT16 cy, INT16 xSrc, INT16 ySrc, UINT16 startscan, |
| UINT16 lines, LPCVOID bits, const BITMAPINFO *info, |
| UINT16 coloruse ) |
| { |
| return SetDIBitsToDevice( hdc, xDest, yDest, cx, cy, xSrc, ySrc, |
| startscan, lines, bits, info, coloruse ); |
| } |
| |
| |
| /*********************************************************************** |
| * SetDIBitsToDevice32 (GDI32.313) |
| */ |
| 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 *info, |
| UINT coloruse ) |
| { |
| INT ret; |
| DC *dc; |
| |
| if (!(dc = DC_GetDCPtr( hdc ))) return 0; |
| |
| if(dc->funcs->pSetDIBitsToDevice) |
| ret = dc->funcs->pSetDIBitsToDevice( dc, xDest, yDest, cx, cy, xSrc, |
| ySrc, startscan, lines, bits, |
| info, coloruse ); |
| else { |
| FIXME("unimplemented on hdc %08x\n", hdc); |
| ret = 0; |
| } |
| |
| GDI_HEAP_UNLOCK( hdc ); |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * SetDIBColorTable16 (GDI.602) |
| */ |
| UINT16 WINAPI SetDIBColorTable16( HDC16 hdc, UINT16 startpos, UINT16 entries, |
| RGBQUAD *colors ) |
| { |
| return SetDIBColorTable( hdc, startpos, entries, colors ); |
| } |
| |
| /*********************************************************************** |
| * SetDIBColorTable32 (GDI32.311) |
| */ |
| UINT WINAPI SetDIBColorTable( HDC hdc, UINT startpos, UINT entries, |
| RGBQUAD *colors ) |
| { |
| DC * dc; |
| PALETTEENTRY * palEntry; |
| PALETTEOBJ * palette; |
| RGBQUAD *end; |
| |
| dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) |
| { |
| dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if (!dc) return 0; |
| } |
| |
| if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC ))) |
| { |
| return 0; |
| } |
| |
| /* Transfer color info */ |
| |
| if (dc->w.bitsPerPixel <= 8) { |
| palEntry = palette->logpalette.palPalEntry + startpos; |
| if (startpos + entries > (1 << dc->w.bitsPerPixel)) |
| entries = (1 << dc->w.bitsPerPixel) - startpos; |
| |
| if (startpos + entries > palette->logpalette.palNumEntries) |
| entries = palette->logpalette.palNumEntries - startpos; |
| |
| for (end = colors + entries; colors < end; palEntry++, colors++) |
| { |
| palEntry->peRed = colors->rgbRed; |
| palEntry->peGreen = colors->rgbGreen; |
| palEntry->peBlue = colors->rgbBlue; |
| } |
| } else { |
| entries = 0; |
| } |
| GDI_HEAP_UNLOCK( dc->w.hPalette ); |
| return entries; |
| } |
| |
| /*********************************************************************** |
| * GetDIBColorTable16 (GDI.603) |
| */ |
| UINT16 WINAPI GetDIBColorTable16( HDC16 hdc, UINT16 startpos, UINT16 entries, |
| RGBQUAD *colors ) |
| { |
| return GetDIBColorTable( hdc, startpos, entries, colors ); |
| } |
| |
| /*********************************************************************** |
| * GetDIBColorTable32 (GDI32.169) |
| */ |
| UINT WINAPI GetDIBColorTable( HDC hdc, UINT startpos, UINT entries, |
| RGBQUAD *colors ) |
| { |
| DC * dc; |
| PALETTEENTRY * palEntry; |
| PALETTEOBJ * palette; |
| RGBQUAD *end; |
| |
| dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) |
| { |
| dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if (!dc) return 0; |
| } |
| |
| if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC ))) |
| { |
| return 0; |
| } |
| |
| /* Transfer color info */ |
| |
| if (dc->w.bitsPerPixel <= 8) { |
| palEntry = palette->logpalette.palPalEntry + startpos; |
| if (startpos + entries > (1 << dc->w.bitsPerPixel)) { |
| entries = (1 << dc->w.bitsPerPixel) - startpos; |
| } |
| for (end = colors + entries; colors < end; palEntry++, colors++) |
| { |
| colors->rgbRed = palEntry->peRed; |
| colors->rgbGreen = palEntry->peGreen; |
| colors->rgbBlue = palEntry->peBlue; |
| colors->rgbReserved = 0; |
| } |
| } else { |
| entries = 0; |
| } |
| GDI_HEAP_UNLOCK( dc->w.hPalette ); |
| return entries; |
| } |
| |
| /* FIXME the following two structs should be combined with __sysPalTemplate in |
| objects/color.c - this should happen after de-X11-ing both of these |
| files. |
| NB. RGBQUAD and PALETTENTRY have different orderings of red, green |
| and blue - sigh */ |
| |
| static RGBQUAD EGAColors[16] = { |
| /* rgbBlue, rgbGreen, rgbRed, rgbReserverd */ |
| { 0x00, 0x00, 0x00, 0x00 }, |
| { 0x00, 0x00, 0x80, 0x00 }, |
| { 0x00, 0x80, 0x00, 0x00 }, |
| { 0x00, 0x80, 0x80, 0x00 }, |
| { 0x80, 0x00, 0x00, 0x00 }, |
| { 0x80, 0x00, 0x80, 0x00 }, |
| { 0x80, 0x80, 0x00, 0x00 }, |
| { 0x80, 0x80, 0x80, 0x00 }, |
| { 0xc0, 0xc0, 0xc0, 0x00 }, |
| { 0x00, 0x00, 0xff, 0x00 }, |
| { 0x00, 0xff, 0x00, 0x00 }, |
| { 0x00, 0xff, 0xff, 0x00 }, |
| { 0xff, 0x00, 0x00, 0x00 }, |
| { 0xff, 0x00, 0xff, 0x00 }, |
| { 0xff, 0xff, 0x00, 0x00 }, |
| { 0xff, 0xff, 0xff, 0x00 } |
| }; |
| |
| |
| static RGBQUAD DefLogPalette[20] = { /* Copy of Default Logical Palette */ |
| /* rgbBlue, rgbGreen, rgbRed, rgbReserverd */ |
| { 0x00, 0x00, 0x00, 0x00 }, |
| { 0x00, 0x00, 0x80, 0x00 }, |
| { 0x00, 0x80, 0x00, 0x00 }, |
| { 0x00, 0x80, 0x80, 0x00 }, |
| { 0x80, 0x00, 0x00, 0x00 }, |
| { 0x80, 0x00, 0x80, 0x00 }, |
| { 0x80, 0x80, 0x00, 0x00 }, |
| { 0xc0, 0xc0, 0xc0, 0x00 }, |
| { 0xc0, 0xdc, 0xc0, 0x00 }, |
| { 0xf0, 0xca, 0xa6, 0x00 }, |
| { 0xf0, 0xfb, 0xff, 0x00 }, |
| { 0xa4, 0xa0, 0xa0, 0x00 }, |
| { 0x80, 0x80, 0x80, 0x00 }, |
| { 0x00, 0x00, 0xf0, 0x00 }, |
| { 0x00, 0xff, 0x00, 0x00 }, |
| { 0x00, 0xff, 0xff, 0x00 }, |
| { 0xff, 0x00, 0x00, 0x00 }, |
| { 0xff, 0x00, 0xff, 0x00 }, |
| { 0xff, 0xff, 0x00, 0x00 }, |
| { 0xff, 0xff, 0xff, 0x00 } |
| }; |
| |
| /*********************************************************************** |
| * GetDIBits16 (GDI.441) |
| */ |
| INT16 WINAPI GetDIBits16( HDC16 hdc, HBITMAP16 hbitmap, UINT16 startscan, |
| UINT16 lines, LPVOID bits, BITMAPINFO * info, |
| UINT16 coloruse ) |
| { |
| return GetDIBits( hdc, hbitmap, startscan, lines, bits, info, coloruse ); |
| } |
| |
| |
| /****************************************************************************** |
| * GetDIBits32 [GDI32.170] Retrieves bits of bitmap and copies to buffer |
| * |
| * RETURNS |
| * Success: Number of scan lines copied from bitmap |
| * Failure: 0 |
| * |
| * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/func/src/f30_14.htm |
| */ |
| 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; |
| PALETTEENTRY * palEntry; |
| PALETTEOBJ * palette; |
| int i; |
| |
| if (!lines) return 0; |
| if (!info) return 0; |
| dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) |
| { |
| dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if (!dc) return 0; |
| } |
| if (!(bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) |
| { |
| GDI_HEAP_UNLOCK( hdc ); |
| return 0; |
| } |
| if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC ))) |
| { |
| GDI_HEAP_UNLOCK( hdc ); |
| GDI_HEAP_UNLOCK( hbitmap ); |
| return 0; |
| } |
| |
| /* Transfer color info */ |
| |
| if (info->bmiHeader.biBitCount <= 8 && info->bmiHeader.biBitCount > 0 ) { |
| |
| info->bmiHeader.biClrUsed = 0; |
| |
| if(info->bmiHeader.biBitCount >= bmp->bitmap.bmBitsPixel) { |
| palEntry = palette->logpalette.palPalEntry; |
| for (i = 0; i < (1 << bmp->bitmap.bmBitsPixel); i++, palEntry++) { |
| if (coloruse == DIB_RGB_COLORS) { |
| info->bmiColors[i].rgbRed = palEntry->peRed; |
| info->bmiColors[i].rgbGreen = palEntry->peGreen; |
| info->bmiColors[i].rgbBlue = palEntry->peBlue; |
| info->bmiColors[i].rgbReserved = 0; |
| } |
| else ((WORD *)info->bmiColors)[i] = (WORD)i; |
| } |
| } else { |
| switch (info->bmiHeader.biBitCount) { |
| case 1: |
| info->bmiColors[0].rgbRed = info->bmiColors[0].rgbGreen = |
| info->bmiColors[0].rgbBlue = 0; |
| info->bmiColors[0].rgbReserved = 0; |
| info->bmiColors[1].rgbRed = info->bmiColors[1].rgbGreen = |
| info->bmiColors[1].rgbBlue = 0xff; |
| info->bmiColors[1].rgbReserved = 0; |
| break; |
| |
| case 4: |
| memcpy(info->bmiColors, EGAColors, sizeof(EGAColors)); |
| break; |
| |
| case 8: |
| { |
| INT r, g, b; |
| RGBQUAD *color; |
| |
| memcpy(info->bmiColors, DefLogPalette, |
| 10 * sizeof(RGBQUAD)); |
| memcpy(info->bmiColors + 246, DefLogPalette + 10, |
| 10 * sizeof(RGBQUAD)); |
| color = info->bmiColors + 10; |
| for(r = 0; r <= 5; r++) /* FIXME */ |
| for(g = 0; g <= 5; g++) |
| for(b = 0; b <= 5; b++) { |
| color->rgbRed = (r * 0xff) / 5; |
| color->rgbGreen = (g * 0xff) / 5; |
| color->rgbBlue = (b * 0xff) / 5; |
| color->rgbReserved = 0; |
| color++; |
| } |
| } |
| } |
| } |
| } |
| |
| GDI_HEAP_UNLOCK( dc->w.hPalette ); |
| |
| if (bits) |
| { |
| if(!BITMAP_Driver->pGetDIBits(bmp, dc, startscan, lines, bits, info, coloruse, hbitmap)) |
| { |
| GDI_HEAP_UNLOCK( hdc ); |
| GDI_HEAP_UNLOCK( hbitmap ); |
| |
| return FALSE; |
| } |
| } |
| else if( info->bmiHeader.biSize >= sizeof(BITMAPINFOHEADER) ) |
| { |
| /* fill in struct members */ |
| |
| if( info->bmiHeader.biBitCount == 0) |
| { |
| info->bmiHeader.biWidth = bmp->bitmap.bmWidth; |
| info->bmiHeader.biHeight = bmp->bitmap.bmHeight; |
| info->bmiHeader.biPlanes = 1; |
| info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel; |
| info->bmiHeader.biSizeImage = |
| DIB_GetDIBImageBytes( bmp->bitmap.bmWidth, |
| bmp->bitmap.bmHeight, |
| bmp->bitmap.bmBitsPixel ); |
| info->bmiHeader.biCompression = 0; |
| } |
| else |
| { |
| info->bmiHeader.biSizeImage = DIB_GetDIBImageBytes( |
| info->bmiHeader.biWidth, |
| info->bmiHeader.biHeight, |
| info->bmiHeader.biBitCount ); |
| } |
| } |
| |
| TRACE("biSizeImage = %ld, biWidth = %ld, biHeight = %ld\n", |
| info->bmiHeader.biSizeImage, info->bmiHeader.biWidth, |
| info->bmiHeader.biHeight); |
| |
| GDI_HEAP_UNLOCK( hdc ); |
| GDI_HEAP_UNLOCK( hbitmap ); |
| |
| return lines; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateDIBitmap16 (GDI.442) |
| */ |
| HBITMAP16 WINAPI CreateDIBitmap16( HDC16 hdc, const BITMAPINFOHEADER * header, |
| DWORD init, LPCVOID bits, const BITMAPINFO * data, |
| UINT16 coloruse ) |
| { |
| return CreateDIBitmap( hdc, header, init, bits, data, coloruse ); |
| } |
| |
| |
| /*********************************************************************** |
| * CreateDIBitmap32 (GDI32.37) |
| */ |
| HBITMAP WINAPI CreateDIBitmap( HDC hdc, const BITMAPINFOHEADER *header, |
| DWORD init, LPCVOID bits, const BITMAPINFO *data, |
| UINT coloruse ) |
| { |
| HBITMAP handle; |
| BOOL fColor; |
| DWORD width; |
| int height; |
| WORD bpp; |
| WORD compr; |
| |
| if (DIB_GetBitmapInfo( header, &width, &height, &bpp, &compr ) == -1) return 0; |
| if (height < 0) height = -height; |
| |
| /* Check if we should create a monochrome or color bitmap. */ |
| /* We create a monochrome bitmap only if it has exactly 2 */ |
| /* colors, which are either black or white, nothing else. */ |
| /* In all other cases, we create a color bitmap. */ |
| |
| if (bpp != 1) fColor = TRUE; |
| else if ((coloruse != DIB_RGB_COLORS) || |
| (init != CBM_INIT) || !data) fColor = FALSE; |
| else |
| { |
| if (data->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) |
| { |
| RGBQUAD *rgb = data->bmiColors; |
| DWORD col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue ); |
| if ((col == RGB(0,0,0)) || (col == RGB(0xff,0xff,0xff))) |
| { |
| rgb++; |
| col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue ); |
| fColor = ((col != RGB(0,0,0)) && (col != RGB(0xff,0xff,0xff))); |
| } |
| else fColor = TRUE; |
| } |
| else if (data->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) |
| { |
| RGBTRIPLE *rgb = ((BITMAPCOREINFO *)data)->bmciColors; |
| DWORD col = RGB( rgb->rgbtRed, rgb->rgbtGreen, rgb->rgbtBlue ); |
| if ((col == RGB(0,0,0)) || (col == RGB(0xff,0xff,0xff))) |
| { |
| rgb++; |
| col = RGB( rgb->rgbtRed, rgb->rgbtGreen, rgb->rgbtBlue ); |
| fColor = ((col != RGB(0,0,0)) && (col != RGB(0xff,0xff,0xff))); |
| } |
| else fColor = TRUE; |
| } |
| else |
| { |
| WARN("(%ld): wrong size for data\n", |
| data->bmiHeader.biSize ); |
| return 0; |
| } |
| } |
| |
| /* Now create the bitmap */ |
| |
| handle = fColor ? CreateBitmap( width, height, 1, MONITOR_GetDepth(&MONITOR_PrimaryMonitor), NULL ) : |
| CreateBitmap( width, height, 1, 1, NULL ); |
| if (!handle) return 0; |
| |
| if (init == CBM_INIT) |
| SetDIBits( hdc, handle, 0, height, bits, data, coloruse ); |
| return handle; |
| } |
| |
| /*********************************************************************** |
| * CreateDIBSection16 (GDI.489) |
| */ |
| HBITMAP16 WINAPI CreateDIBSection16 (HDC16 hdc, BITMAPINFO *bmi, UINT16 usage, |
| SEGPTR *bits, HANDLE section, |
| DWORD offset) |
| { |
| HBITMAP16 hbitmap; |
| DC *dc = (DC *) GDI_GetObjPtr(hdc, DC_MAGIC); |
| if(!dc) dc = (DC *) GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if(!dc) return (HBITMAP16) NULL; |
| |
| hbitmap = dc->funcs->pCreateDIBSection16(dc, bmi, usage, bits, section, offset); |
| |
| GDI_HEAP_UNLOCK(hdc); |
| |
| return hbitmap; |
| } |
| |
| /*********************************************************************** |
| * CreateDIBSection32 (GDI32.36) |
| */ |
| HBITMAP WINAPI CreateDIBSection(HDC hdc, BITMAPINFO *bmi, UINT usage, |
| LPVOID *bits, HANDLE section, |
| DWORD offset) |
| { |
| HBITMAP hbitmap; |
| DC *dc = (DC *) GDI_GetObjPtr(hdc, DC_MAGIC); |
| if(!dc) dc = (DC *) GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if(!dc) return (HBITMAP) NULL; |
| |
| hbitmap = dc->funcs->pCreateDIBSection(dc, bmi, usage, bits, section, offset); |
| |
| GDI_HEAP_UNLOCK(hdc); |
| |
| return hbitmap; |
| } |
| |
| /*********************************************************************** |
| * DIB_DeleteDIBSection |
| */ |
| void DIB_DeleteDIBSection( BITMAPOBJ *bmp ) |
| { |
| if (bmp && bmp->dib) |
| { |
| DIBSECTION *dib = bmp->dib; |
| |
| if (dib->dsBm.bmBits) |
| { |
| if (dib->dshSection) |
| UnmapViewOfFile(dib->dsBm.bmBits); |
| else |
| VirtualFree(dib->dsBm.bmBits, MEM_RELEASE, 0L); |
| } |
| |
| BITMAP_Driver->pDeleteDIBSection(bmp); |
| |
| HeapFree(GetProcessHeap(), 0, dib); |
| bmp->dib = NULL; |
| } |
| } |
| |
| /*********************************************************************** |
| * DIB_FixColorsToLoadflags |
| * |
| * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS |
| * are in loadflags |
| */ |
| void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix) |
| { |
| int colors; |
| COLORREF c_W, c_S, c_F, c_L, c_C; |
| int incr,i; |
| RGBQUAD *ptr; |
| |
| if (bmi->bmiHeader.biBitCount > 8) return; |
| if (bmi->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) incr = 4; |
| else if (bmi->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) incr = 3; |
| else { |
| WARN("Wrong bitmap header size!\n"); |
| return; |
| } |
| colors = bmi->bmiHeader.biClrUsed; |
| if (!colors && (bmi->bmiHeader.biBitCount <= 8)) |
| colors = 1 << bmi->bmiHeader.biBitCount; |
| c_W = GetSysColor(COLOR_WINDOW); |
| c_S = GetSysColor(COLOR_3DSHADOW); |
| c_F = GetSysColor(COLOR_3DFACE); |
| c_L = GetSysColor(COLOR_3DLIGHT); |
| if (loadflags & LR_LOADTRANSPARENT) { |
| switch (bmi->bmiHeader.biBitCount) { |
| case 1: pix = pix >> 7; break; |
| case 4: pix = pix >> 4; break; |
| case 8: break; |
| default: |
| WARN("(%d): Unsupported depth\n", bmi->bmiHeader.biBitCount); |
| return; |
| } |
| if (pix >= colors) { |
| WARN("pixel has color index greater than biClrUsed!\n"); |
| return; |
| } |
| if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F; |
| ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr); |
| ptr->rgbBlue = GetBValue(c_W); |
| ptr->rgbGreen = GetGValue(c_W); |
| ptr->rgbRed = GetRValue(c_W); |
| } |
| if (loadflags & LR_LOADMAP3DCOLORS) |
| for (i=0; i<colors; i++) { |
| ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr); |
| c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue); |
| if (c_C == RGB(128, 128, 128)) { |
| ptr->rgbRed = GetRValue(c_S); |
| ptr->rgbGreen = GetGValue(c_S); |
| ptr->rgbBlue = GetBValue(c_S); |
| } else if (c_C == RGB(192, 192, 192)) { |
| ptr->rgbRed = GetRValue(c_F); |
| ptr->rgbGreen = GetGValue(c_F); |
| ptr->rgbBlue = GetBValue(c_F); |
| } else if (c_C == RGB(223, 223, 223)) { |
| ptr->rgbRed = GetRValue(c_L); |
| ptr->rgbGreen = GetGValue(c_L); |
| ptr->rgbBlue = GetBValue(c_L); |
| } |
| } |
| } |
