user32: Merge create_icon_bitmaps with CURSORICON_CreateIconFromBMI.
This commit is contained in:
Erich Hoover
Alexandre Julliard
parent
28e9b99728
commit
7b333de867
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@ -788,99 +788,22 @@ done:
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/***********************************************************************
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* create_icon_bitmaps
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* create_icon_from_bmi
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*
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* Create the color, mask and alpha bitmaps from the DIB info.
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* Create an icon from its BITMAPINFO.
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*/
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static BOOL create_icon_bitmaps( const BITMAPINFO *bmi, int width, int height,
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HBITMAP *color, HBITMAP *mask, HBITMAP *alpha )
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{
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BOOL monochrome = is_dib_monochrome( bmi );
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unsigned int size = bitmap_info_size( bmi, DIB_RGB_COLORS );
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BITMAPINFO *info;
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const void *color_bits, *mask_bits;
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BOOL ret = FALSE;
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HDC hdc = 0;
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if (!(info = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
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return FALSE;
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if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
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memcpy( info, bmi, size );
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info->bmiHeader.biHeight /= 2;
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color_bits = (const char*)bmi + size;
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mask_bits = (const char*)color_bits +
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get_dib_width_bytes( bmi->bmiHeader.biWidth,
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bmi->bmiHeader.biBitCount ) * abs(info->bmiHeader.biHeight);
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*alpha = 0;
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if (monochrome)
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{
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if (!(*mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
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*color = 0;
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/* copy color data into second half of mask bitmap */
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SelectObject( hdc, *mask );
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StretchDIBits( hdc, 0, height, width, height,
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0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
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color_bits, info, DIB_RGB_COLORS, SRCCOPY );
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}
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else
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{
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if (!(*mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
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if (!(*color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
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GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
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{
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DeleteObject( *mask );
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goto done;
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}
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SelectObject( hdc, *color );
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StretchDIBits( hdc, 0, 0, width, height,
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0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
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color_bits, info, DIB_RGB_COLORS, SRCCOPY );
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if (bmi_has_alpha( info, color_bits ))
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*alpha = create_alpha_bitmap( *color, *mask, info, color_bits );
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/* convert info to monochrome to copy the mask */
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info->bmiHeader.biBitCount = 1;
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if (info->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
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{
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RGBQUAD *rgb = info->bmiColors;
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info->bmiHeader.biClrUsed = info->bmiHeader.biClrImportant = 2;
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rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
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rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
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rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
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}
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else
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{
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RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)info) + 1);
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rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
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rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
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}
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}
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SelectObject( hdc, *mask );
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StretchDIBits( hdc, 0, 0, width, height,
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0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
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mask_bits, info, DIB_RGB_COLORS, SRCCOPY );
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ret = TRUE;
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done:
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DeleteDC( hdc );
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HeapFree( GetProcessHeap(), 0, info );
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return ret;
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}
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static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi, HMODULE module, LPCWSTR resname, HRSRC rsrc,
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static HICON create_icon_from_bmi( BITMAPINFO *bmi, HMODULE module, LPCWSTR resname, HRSRC rsrc,
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POINT hotspot, BOOL bIcon, INT width, INT height, UINT cFlag )
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{
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HICON hObj;
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unsigned int size = bitmap_info_size( bmi, DIB_RGB_COLORS );
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BOOL monochrome = is_dib_monochrome( bmi );
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HBITMAP color = 0, mask = 0, alpha = 0;
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const void *color_bits, *mask_bits;
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BITMAPINFO *bmi_copy;
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BOOL ret = FALSE;
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BOOL do_stretch;
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HICON hObj = 0;
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HDC hdc = 0;
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/* Check bitmap header */
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@ -920,8 +843,78 @@ static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi, HMODULE module, LPCW
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if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
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if (!screen_dc) return 0;
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if (!create_icon_bitmaps( bmi, width, height, &color, &mask, &alpha )) return 0;
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if (!(bmi_copy = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
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return 0;
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if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
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memcpy( bmi_copy, bmi, size );
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bmi_copy->bmiHeader.biHeight /= 2;
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color_bits = (const char*)bmi + size;
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mask_bits = (const char*)color_bits +
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get_dib_width_bytes( bmi->bmiHeader.biWidth,
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bmi->bmiHeader.biBitCount ) * abs(bmi_copy->bmiHeader.biHeight);
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alpha = 0;
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if (monochrome)
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{
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if (!(mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
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color = 0;
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/* copy color data into second half of mask bitmap */
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SelectObject( hdc, mask );
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StretchDIBits( hdc, 0, height, width, height,
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0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
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color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
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}
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else
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{
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if (!(mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
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if (!(color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
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GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
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{
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DeleteObject( mask );
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goto done;
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}
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SelectObject( hdc, color );
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StretchDIBits( hdc, 0, 0, width, height,
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0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
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color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
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if (bmi_has_alpha( bmi_copy, color_bits ))
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alpha = create_alpha_bitmap( color, mask, bmi_copy, color_bits );
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/* convert info to monochrome to copy the mask */
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bmi_copy->bmiHeader.biBitCount = 1;
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if (bmi_copy->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
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{
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RGBQUAD *rgb = bmi_copy->bmiColors;
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bmi_copy->bmiHeader.biClrUsed = bmi_copy->bmiHeader.biClrImportant = 2;
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rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
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rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
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rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
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}
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else
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{
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RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)bmi_copy) + 1);
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rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
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rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
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}
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}
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SelectObject( hdc, mask );
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StretchDIBits( hdc, 0, 0, width, height,
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0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
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mask_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
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ret = TRUE;
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done:
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DeleteDC( hdc );
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HeapFree( GetProcessHeap(), 0, bmi_copy );
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if (ret)
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hObj = alloc_icon_handle( FALSE, 1 );
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if (hObj)
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{
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@ -1175,7 +1168,7 @@ static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size,
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}
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/* Grab a frame from the animation */
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hIconFrame = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)bmi, NULL, NULL, NULL, info->hotspot,
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hIconFrame = create_icon_from_bmi( (BITMAPINFO *)bmi, NULL, NULL, NULL, info->hotspot,
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FALSE, frameWidth, frameHeight, loadflags );
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if (!hIconFrame)
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{
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@ -1266,7 +1259,7 @@ HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
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bmi = (BITMAPINFO *)(pt + 2);
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}
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return CURSORICON_CreateIconFromBMI( bmi, NULL, NULL, NULL, hotspot, bIcon, width, height, cFlag );
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return create_icon_from_bmi( bmi, NULL, NULL, NULL, hotspot, bIcon, width, height, cFlag );
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}
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@ -1327,7 +1320,7 @@ static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
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hotspot.x = entry->xHotspot;
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hotspot.y = entry->yHotspot;
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hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset], NULL, NULL, NULL,
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hIcon = create_icon_from_bmi( (BITMAPINFO *)&bits[entry->dwDIBOffset], NULL, NULL, NULL,
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hotspot, !fCursor, width, height, loadflags );
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end:
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TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
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@ -1419,7 +1412,7 @@ static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
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hotspot.y = pt[1];
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bits += 2 * sizeof(SHORT);
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}
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hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)bits, hInstance, name, hRsrc,
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hIcon = create_icon_from_bmi( (BITMAPINFO *)bits, hInstance, name, hRsrc,
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hotspot, !fCursor, width, height, loadflags );
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FreeResource( handle );
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return hIcon;
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