Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-09-06 02:37:06 +00:00
Code Issues Packages Projects Releases Wiki Activity
reactos/reactos/dll/win32/user32/windows/cursoricon.c

2092 lines
64 KiB
C
Raw Normal View History

[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
/*
* Cursor and icon support
*
* Copyright 1995 Alexandre Julliard
* 1996 Martin Von Loewis
* 1997 Alex Korobka
* 1998 Turchanov Sergey
* 2007 Henri Verbeet
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <user32.h>
#include <wine/debug.h>
WINE_DEFAULT_DEBUG_CHANNEL(cursor);
WINE_DECLARE_DEBUG_CHANNEL(icon);
WINE_DECLARE_DEBUG_CHANNEL(resource);
#include "pshpack1.h"
typedef struct {
BYTE bWidth;
BYTE bHeight;
BYTE bColorCount;
BYTE bReserved;
WORD xHotspot;
WORD yHotspot;
DWORD dwDIBSize;
DWORD dwDIBOffset;
} CURSORICONFILEDIRENTRY;
typedef struct
{
WORD idReserved;
WORD idType;
WORD idCount;
CURSORICONFILEDIRENTRY idEntries[1];
} CURSORICONFILEDIR;
#include "poppack.h"
static HDC screen_dc;
static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
static CRITICAL_SECTION IconCrst;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &IconCrst,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
};
static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
/***********************************************************************
* map_fileW
*
* Helper function to map a file to memory:
* name - file name
* [RETURN] ptr - pointer to mapped file
* [RETURN] filesize - pointer size of file to be stored if not NULL
*/
static void *map_fileW( LPCWSTR name, LPDWORD filesize )
{
HANDLE hFile, hMapping;
LPVOID ptr = NULL;
hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
if (hFile != INVALID_HANDLE_VALUE)
{
hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
if (hMapping)
{
ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
CloseHandle( hMapping );
if (filesize)
*filesize = GetFileSize( hFile, NULL );
}
CloseHandle( hFile );
}
return ptr;
}
/***********************************************************************
* get_dib_width_bytes
*
* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
*/
static int get_dib_width_bytes( 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;
}
/***********************************************************************
* bitmap_info_size
*
* Return the size of the bitmap info structure including color table.
*/
static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
{
unsigned int colors, size, masks = 0;
if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const 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 > 256) /* buffer overflow otherwise */
colors = 256;
if (!colors && (info->bmiHeader.biBitCount <= 8))
colors = 1 << info->bmiHeader.biBitCount;
if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
size = max( info->bmiHeader.biSize, sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) );
return size + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
}
}
/***********************************************************************
* is_dib_monochrome
*
* Returns whether a DIB can be converted to a monochrome DDB.
*
* A DIB can be converted if its color table contains only black and
* white. Black must be the first color in the color table.
*
* Note : If the first color in the color table is white followed by
* black, we can't convert it to a monochrome DDB with
* SetDIBits, because black and white would be inverted.
*/
static BOOL is_dib_monochrome( const BITMAPINFO* info )
{
if (info->bmiHeader.biBitCount != 1) return FALSE;
if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
{
const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
/* Check if the first color is black */
if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
{
rgb++;
/* Check if the second color is white */
return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
&& (rgb->rgbtBlue == 0xff));
}
else return FALSE;
}
else /* assume BITMAPINFOHEADER */
{
const RGBQUAD *rgb = info->bmiColors;
/* Check if the first color is black */
if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
(rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
{
rgb++;
/* Check if the second color is white */
return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
&& (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
}
else return FALSE;
}
}
/***********************************************************************
* DIB_GetBitmapInfo
*
* Get the info from a bitmap header.
* Return 1 for INFOHEADER, 0 for COREHEADER,
*/
static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
LONG *height, WORD *bpp, DWORD *compr )
{
if (header->biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
*width = core->bcWidth;
*height = core->bcHeight;
*bpp = core->bcBitCount;
*compr = 0;
return 0;
}
else if (header->biSize >= sizeof(BITMAPINFOHEADER))
{
*width = header->biWidth;
*height = header->biHeight;
*bpp = header->biBitCount;
*compr = header->biCompression;
return 1;
}
ERR("(%d): unknown/wrong size for header\n", header->biSize );
return -1;
}
/*
* The following macro functions account for the irregularities of
* accessing cursor and icon resources in files and resource entries.
*/
typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
int *width, int *height, int *bits );
/**********************************************************************
* CURSORICON_FindBestIcon
*
* Find the icon closest to the requested size and bit depth.
*/
static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
int width, int height, int depth )
{
int i, cx, cy, bits, bestEntry = -1;
UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
UINT iTempXDiff, iTempYDiff, iTempColorDiff;
/* Find Best Fit */
iTotalDiff = 0xFFFFFFFF;
iColorDiff = 0xFFFFFFFF;
for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
{
iTempXDiff = abs(width - cx);
iTempYDiff = abs(height - cy);
if(iTotalDiff > (iTempXDiff + iTempYDiff))
{
iXDiff = iTempXDiff;
iYDiff = iTempYDiff;
iTotalDiff = iXDiff + iYDiff;
}
}
/* Find Best Colors for Best Fit */
for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
{
if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
{
iTempColorDiff = abs(depth - bits);
if(iColorDiff > iTempColorDiff)
{
bestEntry = i;
iColorDiff = iTempColorDiff;
}
}
}
return bestEntry;
}
static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
int *width, int *height, int *bits )
{
CURSORICONDIR *resdir = dir;
ICONRESDIR *icon;
if ( resdir->idCount <= n )
return FALSE;
icon = &resdir->idEntries[n].ResInfo.icon;
*width = icon->bWidth;
*height = icon->bHeight;
*bits = resdir->idEntries[n].wBitCount;
return TRUE;
}
/**********************************************************************
* CURSORICON_FindBestCursor
*
* Find the cursor closest to the requested size.
*
* FIXME: parameter 'color' ignored.
*/
static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
int width, int height, int depth )
{
int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
/* Double height to account for AND and XOR masks */
height *= 2;
/* First find the largest one smaller than or equal to the requested size*/
maxwidth = maxheight = 0;
for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
{
if ((cx <= width) && (cy <= height) &&
(cx > maxwidth) && (cy > maxheight))
{
bestEntry = i;
maxwidth = cx;
maxheight = cy;
}
}
if (bestEntry != -1) return bestEntry;
/* Now find the smallest one larger than the requested size */
maxwidth = maxheight = 255;
for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
{
if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1))
{
bestEntry = i;
maxwidth = cx;
maxheight = cy;
}
}
return bestEntry;
}
static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
int *width, int *height, int *bits )
{
CURSORICONDIR *resdir = dir;
CURSORDIR *cursor;
if ( resdir->idCount <= n )
return FALSE;
cursor = &resdir->idEntries[n].ResInfo.cursor;
*width = cursor->wWidth;
*height = cursor->wHeight;
*bits = resdir->idEntries[n].wBitCount;
return TRUE;
}
static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
int width, int height, int depth )
{
int n;
n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
width, height, depth );
if ( n < 0 )
return NULL;
return &dir->idEntries[n];
}
static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
int width, int height, int depth )
{
int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
width, height, depth );
if ( n < 0 )
return NULL;
return &dir->idEntries[n];
}
static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
int *width, int *height, int *bits )
{
CURSORICONFILEDIR *filedir = dir;
CURSORICONFILEDIRENTRY *entry;
BITMAPINFOHEADER *info;
if ( filedir->idCount <= n )
return FALSE;
entry = &filedir->idEntries[n];
/* FIXME: check against file size */
info = (BITMAPINFOHEADER *)((char *)dir + entry->dwDIBOffset);
*width = entry->bWidth;
*height = entry->bHeight;
*bits = info->biBitCount;
return TRUE;
}
static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
int width, int height, int depth )
{
int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
width, height, depth );
if ( n < 0 )
return NULL;
return &dir->idEntries[n];
}
static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
int width, int height, int depth )
{
int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
width, height, depth );
if ( n < 0 )
return NULL;
return &dir->idEntries[n];
}
/***********************************************************************
* create_icon_bitmaps
*
* Create the color, mask and alpha bitmaps from the DIB info.
*/
static BOOL create_icon_bitmaps( const BITMAPINFO *bmi, int width, int height,
HBITMAP *color, HBITMAP *mask )
{
BOOL monochrome = is_dib_monochrome( bmi );
unsigned int size = bitmap_info_size( bmi, DIB_RGB_COLORS );
BITMAPINFO *info;
void *color_bits, *mask_bits;
BOOL ret = FALSE;
HDC hdc = 0;
if (!(info = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
return FALSE;
if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
memcpy( info, bmi, size );
info->bmiHeader.biHeight /= 2;
color_bits = (char *)bmi + size;
mask_bits = (char *)color_bits +
get_dib_width_bytes( bmi->bmiHeader.biWidth,
bmi->bmiHeader.biBitCount ) * abs(info->bmiHeader.biHeight);
if (monochrome)
{
if (!(*mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
*color = 0;
/* copy color data into second half of mask bitmap */
SelectObject( hdc, *mask );
StretchDIBits( hdc, 0, height, width, height,
0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
color_bits, info, DIB_RGB_COLORS, SRCCOPY );
}
else
{
if (!(*mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
if (!(*color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
{
DeleteObject( *mask );
goto done;
}
SelectObject( hdc, *color );
StretchDIBits( hdc, 0, 0, width, height,
0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
color_bits, info, DIB_RGB_COLORS, SRCCOPY );
/* convert info to monochrome to copy the mask */
info->bmiHeader.biBitCount = 1;
if (info->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
{
RGBQUAD *rgb = info->bmiColors;
info->bmiHeader.biClrUsed = info->bmiHeader.biClrImportant = 2;
rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
}
else
{
RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)info) + 1);
rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
}
}
SelectObject( hdc, *mask );
StretchDIBits( hdc, 0, 0, width, height,
0, 0, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
mask_bits, info, DIB_RGB_COLORS, SRCCOPY );
ret = TRUE;
done:
DeleteDC( hdc );
HeapFree( GetProcessHeap(), 0, info );
return ret;
}
static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi,
POINT hotspot, BOOL bIcon,
DWORD dwVersion,
INT width, INT height,
UINT cFlag )
{
HBITMAP color = 0, mask = 0;
BOOL do_stretch;
ICONINFO IconInfo;
if (dwVersion == 0x00020000)
{
FIXME_(cursor)("\t2.xx resources are not supported\n");
return 0;
}
/* Check bitmap header */
if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
(bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
bmi->bmiHeader.biCompression != BI_RGB) )
{
WARN_(cursor)("\tinvalid resource bitmap header.\n");
return 0;
}
if (!width) width = bmi->bmiHeader.biWidth;
if (!height) height = bmi->bmiHeader.biHeight/2;
do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
(bmi->bmiHeader.biWidth != width);
/* Scale the hotspot */
if (bIcon)
{
hotspot.x = width / 2;
hotspot.y = height / 2;
}
else if (do_stretch)
{
hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
}
if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
if (!screen_dc) return 0;
if (!create_icon_bitmaps( bmi, width, height, &color, &mask )) return 0;
IconInfo.xHotspot = hotspot.x;
IconInfo.yHotspot = hotspot.y;
IconInfo.fIcon = bIcon;
IconInfo.hbmColor = color;
IconInfo.hbmMask = mask;
return NtUserCreateCursorIconHandle(&IconInfo, FALSE);
}
/**********************************************************************
* .ANI cursor support
*/
#define RIFF_FOURCC( c0, c1, c2, c3 ) \
( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
#define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
#define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
#define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
#define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
#define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
#define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
#define ANI_FLAG_ICON 0x1
#define ANI_FLAG_SEQUENCE 0x2
typedef struct {
DWORD header_size;
DWORD num_frames;
DWORD num_steps;
DWORD width;
DWORD height;
DWORD bpp;
DWORD num_planes;
DWORD display_rate;
DWORD flags;
} ani_header;
typedef struct {
DWORD data_size;
const unsigned char *data;
} riff_chunk_t;
static void dump_ani_header( const ani_header *header )
{
TRACE(" header size: %d\n", header->header_size);
TRACE(" frames: %d\n", header->num_frames);
TRACE(" steps: %d\n", header->num_steps);
TRACE(" width: %d\n", header->width);
TRACE(" height: %d\n", header->height);
TRACE(" bpp: %d\n", header->bpp);
TRACE(" planes: %d\n", header->num_planes);
TRACE(" display rate: %d\n", header->display_rate);
TRACE(" flags: 0x%08x\n", header->flags);
}
/*
* RIFF:
* DWORD "RIFF"
* DWORD size
* DWORD riff_id
* BYTE[] data
*
* LIST:
* DWORD "LIST"
* DWORD size
* DWORD list_id
* BYTE[] data
*
* CHUNK:
* DWORD chunk_id
* DWORD size
* BYTE[] data
*/
static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
{
const unsigned char *ptr = parent_chunk->data;
const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
while (ptr < end)
{
if ((!chunk_type && *(const DWORD *)ptr == chunk_id )
|| (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id ))
{
ptr += sizeof(DWORD);
chunk->data_size = (*(const DWORD *)ptr + 1) & ~1;
ptr += sizeof(DWORD);
if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
chunk->data = ptr;
return;
}
ptr += sizeof(DWORD);
ptr += (*(const DWORD *)ptr + 1) & ~1;
ptr += sizeof(DWORD);
}
}
/*
* .ANI layout:
*
* RIFF:'ACON' RIFF chunk
* |- CHUNK:'anih' Header
* |- CHUNK:'seq ' Sequence information (optional)
* \- LIST:'fram' Frame list
* |- CHUNK:icon Cursor frames
* |- CHUNK:icon
* |- ...
* \- CHUNK:icon
*/
static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size,
INT width, INT height, INT depth )
{
HCURSOR cursor;
ani_header header = {0};
LPBYTE frame_bits = 0;
POINT hotspot;
CURSORICONFILEDIRENTRY *entry;
riff_chunk_t root_chunk = { bits_size, bits };
riff_chunk_t ACON_chunk = {0};
riff_chunk_t anih_chunk = {0};
riff_chunk_t fram_chunk = {0};
const unsigned char *icon_data;
TRACE("bits %p, bits_size %d\n", bits, bits_size);
if (!bits) return 0;
riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
if (!ACON_chunk.data)
{
ERR("Failed to get root chunk.\n");
return 0;
}
riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
if (!anih_chunk.data)
{
ERR("Failed to get 'anih' chunk.\n");
return 0;
}
memcpy( &header, anih_chunk.data, sizeof(header) );
dump_ani_header( &header );
riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
if (!fram_chunk.data)
{
ERR("Failed to get icon list.\n");
return 0;
}
/* FIXME: For now, just load the first frame. Before we can load all the
* frames, we need to write the needed code in wineserver, etc. to handle
* cursors. Once this code is written, we can extend it to support .ani
* cursors and then update user32 and winex11.drv to load all frames.
*
* Hopefully this will at least make some games (C&C3, etc.) more playable
* in the meantime.
*/
FIXME("Loading all frames for .ani cursors not implemented.\n");
icon_data = fram_chunk.data + (2 * sizeof(DWORD));
entry = CURSORICON_FindBestIconFile( (CURSORICONFILEDIR *) icon_data,
width, height, depth );
frame_bits = HeapAlloc( GetProcessHeap(), 0, entry->dwDIBSize );
memcpy( frame_bits, icon_data + entry->dwDIBOffset, entry->dwDIBSize );
if (!header.width || !header.height)
{
header.width = entry->bWidth;
header.height = entry->bHeight;
}
hotspot.x = entry->xHotspot;
hotspot.y = entry->yHotspot;
cursor = CURSORICON_CreateIconFromBMI( (BITMAPINFO *) frame_bits, hotspot,
FALSE, 0x00030000, header.width, header.height, 0 );
HeapFree( GetProcessHeap(), 0, frame_bits );
return cursor;
}
/**********************************************************************
* CreateIconFromResourceEx (USER32.@)
*
* FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
* with cbSize parameter as well.
*/
HICON WINAPI CreateIconFromResourceEx( PBYTE bits, DWORD cbSize,
BOOL bIcon, DWORD dwVersion,
int width, int height,
UINT cFlag )
{
POINT hotspot;
BITMAPINFO *bmi;
TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
bits, cbSize, dwVersion, width, height,
bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
if (bIcon)
{
hotspot.x = width / 2;
hotspot.y = height / 2;
bmi = (BITMAPINFO *)bits;
}
else /* get the hotspot */
{
SHORT *pt = (SHORT *)bits;
hotspot.x = pt[0];
hotspot.y = pt[1];
bmi = (BITMAPINFO *)(pt + 2);
}
return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion,
width, height, cFlag );
}
/**********************************************************************
* CreateIconFromResource (USER32.@)
*/
HICON WINAPI CreateIconFromResource( PBYTE bits, DWORD cbSize,
BOOL bIcon, DWORD dwVersion)
{
return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
}
static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
INT width, INT height, INT depth,
BOOL fCursor, UINT loadflags)
{
CURSORICONFILEDIRENTRY *entry;
CURSORICONFILEDIR *dir;
DWORD filesize = 0;
HICON hIcon = 0;
LPBYTE bits;
POINT hotspot;
TRACE("loading %s\n", debugstr_w( filename ));
bits = map_fileW( filename, &filesize );
if (!bits)
return hIcon;
/* Check for .ani. */
if (memcmp( bits, "RIFF", 4 ) == 0)
{
hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height,
depth );
goto end;
}
dir = (CURSORICONFILEDIR*) bits;
if ( filesize < sizeof(*dir) )
goto end;
if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
goto end;
if ( fCursor )
entry = CURSORICON_FindBestCursorFile( dir, width, height, depth );
else
entry = CURSORICON_FindBestIconFile( dir, width, height, depth );
if ( !entry )
goto end;
/* check that we don't run off the end of the file */
if ( entry->dwDIBOffset > filesize )
goto end;
if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
goto end;
hotspot.x = entry->xHotspot;
hotspot.y = entry->yHotspot;
hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset],
hotspot, !fCursor, 0x00030000,
width, height, loadflags );
end:
TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
UnmapViewOfFile( bits );
return hIcon;
}
/**********************************************************************
* CURSORICON_Load
*
* Load a cursor or icon from resource or file.
*/
static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
INT width, INT height, INT depth,
BOOL fCursor, UINT loadflags)
{
HANDLE handle = 0;
HICON hIcon = 0;
HRSRC hRsrc, hGroupRsrc;
CURSORICONDIR *dir;
CURSORICONDIRENTRY *dirEntry;
LPBYTE bits;
WORD wResId;
DWORD dwBytesInRes;
TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
if (!hInstance) hInstance = User32Instance; /* Load OEM cursor/icon */
/* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
/* Get directory resource ID */
if (!(hRsrc = FindResourceW( hInstance, name,
(LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
return 0;
hGroupRsrc = hRsrc;
/* Find the best entry in the directory */
if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
if (!(dir = LockResource( handle ))) return 0;
if (fCursor)
dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
else
dirEntry = CURSORICON_FindBestIconRes( dir, width, height, depth );
if (!dirEntry) return 0;
wResId = dirEntry->wResId;
dwBytesInRes = dirEntry->dwBytesInRes;
FreeResource( handle );
/* Load the resource */
if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
(LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
/* If shared icon, check whether it was already loaded */
if ( (loadflags & LR_SHARED)
&& (hIcon = NtUserFindExistingCursorIcon( hInstance, hRsrc, 0, 0 ) ) != 0 )
return hIcon;
if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
bits = LockResource( handle );
hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
!fCursor, 0x00030000, width, height, loadflags);
FreeResource( handle );
/* If shared icon, add to icon cache */
if (hIcon && 0 != (loadflags & LR_SHARED))
{
#if 1
NtUserSetCursorIconData((HICON)hIcon, NULL, NULL, hInstance, hRsrc,
(HRSRC)NULL);
#else
ICONINFO iconInfo;
if(NtUserGetIconInfo(ResIcon, &iconInfo, NULL, NULL, NULL, FALSE))
NtUserSetCursorIconData((HICON)hIcon, hinst, NULL, &iconInfo);
#endif
}
return hIcon;
}
/*************************************************************************
* CURSORICON_ExtCopy
*
* Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
*
* PARAMS
* Handle [I] handle to an Image
* nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
* iDesiredCX [I] The Desired width of the Image
* iDesiredCY [I] The desired height of the Image
* nFlags [I] The flags from CopyImage
*
* RETURNS
* Success: The new handle of the Image
*
* NOTES
* LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
* LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
* LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
*
*
*/
static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
INT iDesiredCX, INT iDesiredCY,
UINT nFlags)
{
HICON hNew=0;
TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
if(hIcon == 0)
{
return 0;
}
/* Best Fit or Monochrome */
if( (nFlags & LR_COPYFROMRESOURCE
&& (iDesiredCX > 0 || iDesiredCY > 0))
|| nFlags & LR_MONOCHROME)
{
FIXME("Copying from resource isn't implemented yet\n");
hNew = CopyIcon(hIcon);
#if 0
ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
/* Not Found in Cache, then do a straight copy
*/
if(pIconCache == NULL)
{
hNew = CopyIcon( hIcon );
if(nFlags & LR_COPYFROMRESOURCE)
{
TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
}
}
else
{
int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
LPBYTE pBits;
HANDLE hMem;
HRSRC hRsrc;
DWORD dwBytesInRes;
WORD wResId;
CURSORICONDIR *pDir;
CURSORICONDIRENTRY *pDirEntry;
BOOL bIsIcon = (nType == IMAGE_ICON);
/* Completing iDesiredCX CY for Monochrome Bitmaps if needed
*/
if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
|| (iDesiredCX == 0 && iDesiredCY == 0))
{
iDesiredCY = GetSystemMetrics(bIsIcon ?
SM_CYICON : SM_CYCURSOR);
iDesiredCX = GetSystemMetrics(bIsIcon ?
SM_CXICON : SM_CXCURSOR);
}
/* Retrieve the CURSORICONDIRENTRY
*/
if (!(hMem = LoadResource( pIconCache->hModule ,
pIconCache->hGroupRsrc)))
{
return 0;
}
if (!(pDir = LockResource( hMem )))
{
return 0;
}
/* Find Best Fit
*/
if(bIsIcon)
{
pDirEntry = CURSORICON_FindBestIconRes(
pDir, iDesiredCX, iDesiredCY, 256 );
}
else
{
pDirEntry = CURSORICON_FindBestCursorRes(
pDir, iDesiredCX, iDesiredCY, 1);
}
wResId = pDirEntry->wResId;
dwBytesInRes = pDirEntry->dwBytesInRes;
FreeResource(hMem);
TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
/* Get the Best Fit
*/
if (!(hRsrc = FindResourceW(pIconCache->hModule ,
MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
{
return 0;
}
if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
{
return 0;
}
pBits = LockResource( hMem );
if(nFlags & LR_DEFAULTSIZE)
{
iTargetCY = GetSystemMetrics(SM_CYICON);
iTargetCX = GetSystemMetrics(SM_CXICON);
}
/* Create a New Icon with the proper dimension
*/
hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
FreeResource(hMem);
}
#endif
}
else hNew = CopyIcon( hIcon );
return hNew;
}
/***********************************************************************
* CreateCursor (USER32.@)
*/
HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
INT xHotSpot, INT yHotSpot,
INT nWidth, INT nHeight,
LPCVOID lpANDbits, LPCVOID lpXORbits )
{
ICONINFO info;
HCURSOR hCursor;
TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
info.fIcon = FALSE;
info.xHotspot = xHotSpot;
info.yHotspot = yHotSpot;
info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
hCursor = CreateIconIndirect( &info );
DeleteObject( info.hbmMask );
DeleteObject( info.hbmColor );
return hCursor;
}
/***********************************************************************
* CreateIcon (USER32.@)
*
* Creates an icon based on the specified bitmaps. The bitmaps must be
* provided in a device dependent format and will be resized to
* (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
* depth. The provided bitmaps must be top-down bitmaps.
* Although Windows does not support 15bpp(*) this API must support it
* for Winelib applications.
*
* (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
* format!
*
* RETURNS
* Success: handle to an icon
* Failure: NULL
*
* FIXME: Do we need to resize the bitmaps?
*/
HICON WINAPI CreateIcon(
HINSTANCE hInstance, /* [in] the application's hInstance */
int nWidth, /* [in] the width of the provided bitmaps */
int nHeight, /* [in] the height of the provided bitmaps */
BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
const BYTE* lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
const BYTE* lpXORbits) /* [in] the icon's 'color' bitmap */
{
ICONINFO iinfo;
HICON hIcon;
TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
iinfo.fIcon = TRUE;
iinfo.xHotspot = nWidth / 2;
iinfo.yHotspot = nHeight / 2;
iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
hIcon = CreateIconIndirect( &iinfo );
DeleteObject( iinfo.hbmMask );
DeleteObject( iinfo.hbmColor );
return hIcon;
}
/***********************************************************************
* CopyIcon (USER32.@)
*/
HICON WINAPI CopyIcon( HICON hIcon )
{
HICON hRetIcon = NULL;
ICONINFO IconInfo;
if(GetIconInfo(hIcon, &IconInfo))
{
hRetIcon = CreateIconIndirect(&IconInfo);
DeleteObject(IconInfo.hbmColor);
DeleteObject(IconInfo.hbmMask);
}
return hRetIcon;
}
/***********************************************************************
* DestroyIcon (USER32.@)
*/
BOOL WINAPI DestroyIcon( HICON hIcon )
{
TRACE_(icon)("%p\n", hIcon );
return NtUserDestroyCursor(hIcon, 0);
}
/***********************************************************************
* DestroyCursor (USER32.@)
*/
BOOL WINAPI DestroyCursor( HCURSOR hCursor )
{
if (GetCursor() == hCursor)
{
WARN_(cursor)("Destroying active cursor!\n" );
return FALSE;
}
return DestroyIcon( hCursor );
}
/***********************************************************************
* DrawIcon (USER32.@)
*/
BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
{
return DrawIconEx( hdc, x, y, hIcon, 0, 0, 0, 0, DI_NORMAL | DI_COMPAT | DI_DEFAULTSIZE );
}
/***********************************************************************
* SetCursor (USER32.@)
*
* Set the cursor shape.
*
* RETURNS
* A handle to the previous cursor shape.
*/
HCURSOR WINAPI /*DECLSPEC_HOTPATCH*/ SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
{
return NtUserSetCursor(hCursor);
}
/***********************************************************************
* ShowCursor (USER32.@)
*/
INT WINAPI /*DECLSPEC_HOTPATCH*/ ShowCursor( BOOL bShow )
{
return NtUserShowCursor(bShow);
}
/***********************************************************************
* GetCursor (USER32.@)
*/
HCURSOR WINAPI GetCursor(void)
{
CURSORINFO ci;
ci.cbSize = sizeof(CURSORINFO);
if(NtUserGetCursorInfo(&ci))
return ci.hCursor;
else
return (HCURSOR)0;
}
/***********************************************************************
* ClipCursor (USER32.@)
*/
BOOL WINAPI /*DECLSPEC_HOTPATCH*/ ClipCursor( const RECT *rect )
{
return NtUserClipCursor((RECT *)rect);
}
/***********************************************************************
* GetClipCursor (USER32.@)
*/
BOOL WINAPI /*DECLSPEC_HOTPATCH*/ GetClipCursor( RECT *rect )
{
return NtUserGetClipCursor(rect);
}
/***********************************************************************
* SetSystemCursor (USER32.@)
*/
BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
{
FIXME("(%p,%08x),stub!\n", hcur, id);
return TRUE;
}
/**********************************************************************
* LookupIconIdFromDirectoryEx (USER32.@)
*/
INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
INT width, INT height, UINT cFlag )
{
CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
UINT retVal = 0;
if( dir && !dir->idReserved && (dir->idType & 3) )
{
CURSORICONDIRENTRY* entry;
const HDC hdc = GetDC(0);
const int depth = (cFlag & LR_MONOCHROME) ?
1 : GetDeviceCaps(hdc, BITSPIXEL);
ReleaseDC(0, hdc);
if( bIcon )
entry = CURSORICON_FindBestIconRes( dir, width, height, depth );
else
entry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
if( entry ) retVal = entry->wResId;
}
else WARN_(cursor)("invalid resource directory\n");
return retVal;
}
/**********************************************************************
* LookupIconIdFromDirectory (USER32.@)
*/
INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
{
return LookupIconIdFromDirectoryEx( dir, bIcon,
bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
}
/***********************************************************************
* LoadCursorW (USER32.@)
*/
HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
{
TRACE("%p, %s\n", hInstance, debugstr_w(name));
return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorA (USER32.@)
*/
HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
{
TRACE("%p, %s\n", hInstance, debugstr_a(name));
return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorFromFileW (USER32.@)
*/
HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
{
TRACE("%s\n", debugstr_w(name));
return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
LR_LOADFROMFILE | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorFromFileA (USER32.@)
*/
HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
{
TRACE("%s\n", debugstr_a(name));
return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
LR_LOADFROMFILE | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadIconW (USER32.@)
*/
HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
{
TRACE("%p, %s\n", hInstance, debugstr_w(name));
return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadIconA (USER32.@)
*/
HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
{
TRACE("%p, %s\n", hInstance, debugstr_a(name));
return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/**********************************************************************
* GetIconInfo (USER32.@)
*/
BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
{
return NtUserGetIconInfo(hIcon, iconinfo, 0, 0, 0, 0);
}
/**********************************************************************
* CreateIconIndirect (USER32.@)
*/
HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
{
BITMAP ColorBitmap;
BITMAP MaskBitmap;
[USER32] - Partly merge 48026 svn path=/trunk/; revision=48031
2010-07-13 21:38:34 +00:00
ICONINFO safeIconInfo;
[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
if(!iconinfo)
{
SetLastError(ERROR_INVALID_PARAMETER);
return (HICON)0;
}
[USER32] - Partly merge 48026 svn path=/trunk/; revision=48031
2010-07-13 21:38:34 +00:00
safeIconInfo = *iconinfo;
if(!GetObjectW(safeIconInfo.hbmMask, sizeof(BITMAP), &MaskBitmap))
[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
{
return (HICON)0;
}
/* Try to get color bitmap */
[USER32] - Partly merge 48026 svn path=/trunk/; revision=48031
2010-07-13 21:38:34 +00:00
if (GetObjectW(safeIconInfo.hbmColor, sizeof(BITMAP), &ColorBitmap))
[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
{
/* Compare size of color and mask bitmap*/
if (ColorBitmap.bmWidth != MaskBitmap.bmWidth ||
ColorBitmap.bmHeight != MaskBitmap.bmHeight)
{
ERR("Color and mask size are different!");
SetLastError(ERROR_INVALID_PARAMETER);
return (HICON)0;
}
[USER32] - Partly merge 48026 svn path=/trunk/; revision=48031
2010-07-13 21:38:34 +00:00
/* Test if they are inverted */
if(ColorBitmap.bmBitsPixel == 1)
{
if(MaskBitmap.bmBitsPixel != 1)
{
safeIconInfo.hbmMask = iconinfo->hbmColor;
safeIconInfo.hbmColor = iconinfo->hbmMask;
}
else
{
/* Wine tests say so */
safeIconInfo.hbmColor = NULL;
}
}
[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
}
[USER32] - Partly merge 48026 svn path=/trunk/; revision=48031
2010-07-13 21:38:34 +00:00
return (HICON)NtUserCreateCursorIconHandle(&safeIconInfo, TRUE);
[USER32] - Rewrite support of cursors, icons and bitmaps in user32.dll, based from WINE implementation. One file to rule them all. Now user32::cursoricon winetests don't crash anymore. svn path=/trunk/; revision=48008
2010-07-12 17:49:59 +00:00
}
/******************************************************************************
* DrawIconEx (USER32.@) Draws an icon or cursor on device context
*
* NOTES
* Why is this using SM_CXICON instead of SM_CXCURSOR?
*
* PARAMS
* hdc [I] Handle to device context
* x0 [I] X coordinate of upper left corner
* y0 [I] Y coordinate of upper left corner
* hIcon [I] Handle to icon to draw
* cxWidth [I] Width of icon
* cyWidth [I] Height of icon
* istep [I] Index of frame in animated cursor
* hbr [I] Handle to background brush
* flags [I] Icon-drawing flags
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI DrawIconEx( HDC hdc, INT xLeft, INT yTop, HICON hIcon,
INT cxWidth, INT cyWidth, UINT istepIfAniCur,
HBRUSH hbrFlickerFreeDraw, UINT diFlags )
{
return NtUserDrawIconEx(hdc, xLeft, yTop, hIcon, cxWidth, cyWidth,
istepIfAniCur, hbrFlickerFreeDraw, diFlags,
0, 0);
}
/***********************************************************************
* DIB_FixColorsToLoadflags
*
* Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
* are in loadflags
*/
static 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;
int bitmap_type;
LONG width;
LONG height;
WORD bpp;
DWORD compr;
if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
{
WARN_(resource)("Invalid bitmap\n");
return;
}
if (bpp > 8) return;
if (bitmap_type == 0) /* BITMAPCOREHEADER */
{
incr = 3;
colors = 1 << bpp;
}
else
{
incr = 4;
colors = bmi->bmiHeader.biClrUsed;
if (colors > 256) colors = 256;
if (!colors && (bpp <= 8)) colors = 1 << bpp;
}
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 (bpp) {
case 1: pix = pix >> 7; break;
case 4: pix = pix >> 4; break;
case 8: break;
default:
WARN_(resource)("(%d): Unsupported depth\n", bpp);
return;
}
if (pix >= colors) {
WARN_(resource)("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);
}
}
}
/**********************************************************************
* BITMAP_Load
*/
static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
INT desiredx, INT desiredy, UINT loadflags )
{
HBITMAP hbitmap = 0, orig_bm;
HRSRC hRsrc;
HGLOBAL handle;
char *ptr = NULL;
BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
int size;
BYTE pix;
char *bits;
LONG width, height, new_width, new_height;
WORD bpp_dummy;
DWORD compr_dummy, offbits = 0;
INT bm_type;
HDC screen_mem_dc = NULL;
if (!(loadflags & LR_LOADFROMFILE))
{
if (!instance)
{
/* OEM bitmap: try to load the resource from user32.dll */
instance = User32Instance;
}
if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
if (!(handle = LoadResource( instance, hRsrc ))) return 0;
if ((info = LockResource( handle )) == NULL) return 0;
}
else
{
BITMAPFILEHEADER * bmfh;
if (!(ptr = map_fileW( name, NULL ))) return 0;
info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
bmfh = (BITMAPFILEHEADER *)ptr;
if (bmfh->bfType != 0x4d42 /* 'BM' */)
{
WARN("Invalid/unsupported bitmap format!\n");
goto end_close;
}
if (bmfh->bfOffBits) offbits = bmfh->bfOffBits - sizeof(BITMAPFILEHEADER);
}
size = bitmap_info_size(info, DIB_RGB_COLORS);
fix_info = HeapAlloc(GetProcessHeap(), 0, size);
scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
if (!fix_info || !scaled_info) goto end;
memcpy(fix_info, info, size);
pix = *((LPBYTE)info + size);
DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
memcpy(scaled_info, fix_info, size);
bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
&bpp_dummy, &compr_dummy);
if(desiredx != 0)
new_width = desiredx;
else
new_width = width;
if(desiredy != 0)
new_height = height > 0 ? desiredy : -desiredy;
else
new_height = height;
if(bm_type == 0)
{
BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
core->bcWidth = new_width;
core->bcHeight = new_height;
}
else
{
/* Some sanity checks for BITMAPINFO (not applicable to BITMAPCOREINFO) */
if (info->bmiHeader.biHeight > 65535 || info->bmiHeader.biWidth > 65535) {
WARN("Broken BitmapInfoHeader!\n");
goto end;
}
scaled_info->bmiHeader.biWidth = new_width;
scaled_info->bmiHeader.biHeight = new_height;
}
if (new_height < 0) new_height = -new_height;
if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
bits = (char *)info + (offbits ? offbits : size);
if (loadflags & LR_CREATEDIBSECTION)
{
scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
}
else
{
if (is_dib_monochrome(fix_info))
hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
else
hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
}
orig_bm = SelectObject(screen_mem_dc, hbitmap);
StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
SelectObject(screen_mem_dc, orig_bm);
end:
if (screen_mem_dc) DeleteDC(screen_mem_dc);
HeapFree(GetProcessHeap(), 0, scaled_info);
HeapFree(GetProcessHeap(), 0, fix_info);
end_close:
if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
return hbitmap;
}
/**********************************************************************
* LoadImageA (USER32.@)
*
* See LoadImageW.
*/
HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
INT desiredx, INT desiredy, UINT loadflags)
{
HANDLE res;
LPWSTR u_name;
if (IS_INTRESOURCE(name))
return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
__TRY {
DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
}
__EXCEPT_PAGE_FAULT {
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
__ENDTRY
res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
HeapFree(GetProcessHeap(), 0, u_name);
return res;
}
/******************************************************************************
* LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
*
* PARAMS
* hinst [I] Handle of instance that contains image
* name [I] Name of image
* type [I] Type of image
* desiredx [I] Desired width
* desiredy [I] Desired height
* loadflags [I] Load flags
*
* RETURNS
* Success: Handle to newly loaded image
* Failure: NULL
*
* FIXME: Implementation lacks some features, see LR_ defines in winuser.h
*/
HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
INT desiredx, INT desiredy, UINT loadflags )
{
TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
if (loadflags & LR_DEFAULTSIZE) {
if (type == IMAGE_ICON) {
if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
} else if (type == IMAGE_CURSOR) {
if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
}
}
if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
switch (type) {
case IMAGE_BITMAP:
return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
case IMAGE_ICON:
if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
if (screen_dc)
{
return CURSORICON_Load(hinst, name, desiredx, desiredy,
GetDeviceCaps(screen_dc, BITSPIXEL),
FALSE, loadflags);
}
break;
case IMAGE_CURSOR:
return CURSORICON_Load(hinst, name, desiredx, desiredy,
1, TRUE, loadflags);
}
return 0;
}
/******************************************************************************
* CopyImage (USER32.@) Creates new image and copies attributes to it
*
* PARAMS
* hnd [I] Handle to image to copy
* type [I] Type of image to copy
* desiredx [I] Desired width of new image
* desiredy [I] Desired height of new image
* flags [I] Copy flags
*
* RETURNS
* Success: Handle to newly created image
* Failure: NULL
*
* BUGS
* Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
* all other versions (95/2000/XP have been tested) ignore it.
*
* NOTES
* If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
* a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
* the copy will have the same depth as the screen.
* The content of the image will only be copied if the bit depth of the
* original image is compatible with the bit depth of the screen, or
* if the source is a DIB section.
* The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
*/
HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
INT desiredy, UINT flags )
{
TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
hnd, type, desiredx, desiredy, flags);
switch (type)
{
case IMAGE_BITMAP:
{
HBITMAP res = NULL;
DIBSECTION ds;
int objSize;
BITMAPINFO * bi;
objSize = GetObjectW( hnd, sizeof(ds), &ds );
if (!objSize) return 0;
if ((desiredx < 0) || (desiredy < 0)) return 0;
if (flags & LR_COPYFROMRESOURCE)
{
FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
}
if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
/* Allocate memory for a BITMAPINFOHEADER structure and a
color table. The maximum number of colors in a color table
is 256 which corresponds to a bitmap with depth 8.
Bitmaps with higher depths don't have color tables. */
bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
if (!bi) return 0;
bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
bi->bmiHeader.biCompression = BI_RGB;
if (flags & LR_CREATEDIBSECTION)
{
/* Create a DIB section. LR_MONOCHROME is ignored */
void * bits;
HDC dc = CreateCompatibleDC(NULL);
if (objSize == sizeof(DIBSECTION))
{
/* The source bitmap is a DIB.
Get its attributes to create an exact copy */
memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
}
/* Get the color table or the color masks */
GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
bi->bmiHeader.biWidth = desiredx;
bi->bmiHeader.biHeight = desiredy;
bi->bmiHeader.biSizeImage = 0;
res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
DeleteDC(dc);
}
else
{
/* Create a device-dependent bitmap */
BOOL monochrome = (flags & LR_MONOCHROME);
if (objSize == sizeof(DIBSECTION))
{
/* The source bitmap is a DIB section.
Get its attributes */
HDC dc = CreateCompatibleDC(NULL);
bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
DeleteDC(dc);
if (!monochrome && ds.dsBm.bmBitsPixel == 1)
{
/* Look if the colors of the DIB are black and white */
monochrome =
(bi->bmiColors[0].rgbRed == 0xff
&& bi->bmiColors[0].rgbGreen == 0xff
&& bi->bmiColors[0].rgbBlue == 0xff
&& bi->bmiColors[0].rgbReserved == 0
&& bi->bmiColors[1].rgbRed == 0
&& bi->bmiColors[1].rgbGreen == 0
&& bi->bmiColors[1].rgbBlue == 0
&& bi->bmiColors[1].rgbReserved == 0)
||
(bi->bmiColors[0].rgbRed == 0
&& bi->bmiColors[0].rgbGreen == 0
&& bi->bmiColors[0].rgbBlue == 0
&& bi->bmiColors[0].rgbReserved == 0
&& bi->bmiColors[1].rgbRed == 0xff
&& bi->bmiColors[1].rgbGreen == 0xff
&& bi->bmiColors[1].rgbBlue == 0xff
&& bi->bmiColors[1].rgbReserved == 0);
}
}
else if (!monochrome)
{
monochrome = ds.dsBm.bmBitsPixel == 1;
}
if (monochrome)
{
res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
}
else
{
HDC screenDC = GetDC(NULL);
res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
ReleaseDC(NULL, screenDC);
}
}
if (res)
{
/* Only copy the bitmap if it's a DIB section or if it's
compatible to the screen */
BOOL copyContents;
if (objSize == sizeof(DIBSECTION))
{
copyContents = TRUE;
}
else
{
HDC screenDC = GetDC(NULL);
int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
ReleaseDC(NULL, screenDC);
copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
}
if (copyContents)
{
/* The source bitmap may already be selected in a device context,
use GetDIBits/StretchDIBits and not StretchBlt */
HDC dc;
void * bits;
dc = CreateCompatibleDC(NULL);
bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
bi->bmiHeader.biSizeImage = 0;
bi->bmiHeader.biClrUsed = 0;
bi->bmiHeader.biClrImportant = 0;
/* Fill in biSizeImage */
GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
if (bits)
{
HBITMAP oldBmp;
/* Get the image bits of the source bitmap */
GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
/* Copy it to the destination bitmap */
oldBmp = SelectObject(dc, res);
StretchDIBits(dc, 0, 0, desiredx, desiredy,
0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
bits, bi, DIB_RGB_COLORS, SRCCOPY);
SelectObject(dc, oldBmp);
HeapFree(GetProcessHeap(), 0, bits);
}
DeleteDC(dc);
}
if (flags & LR_COPYDELETEORG)
{
DeleteObject(hnd);
}
}
HeapFree(GetProcessHeap(), 0, bi);
return res;
}
case IMAGE_ICON:
return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
case IMAGE_CURSOR:
/* Should call CURSORICON_ExtCopy but more testing
* needs to be done before we change this
*/
if (flags) FIXME("Flags are ignored\n");
return CopyCursor(hnd);
}
return 0;
}
/******************************************************************************
* LoadBitmapW (USER32.@) Loads bitmap from the executable file
*
* RETURNS
* Success: Handle to specified bitmap
* Failure: NULL
*/
HBITMAP WINAPI LoadBitmapW(
HINSTANCE instance, /* [in] Handle to application instance */
LPCWSTR name) /* [in] Address of bitmap resource name */
{
return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
}
/**********************************************************************
* LoadBitmapA (USER32.@)
*
* See LoadBitmapW.
*/
HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
{
return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
}
HCURSOR
CursorIconToCursor(HICON hIcon,
BOOL SemiTransparent)
{
UNIMPLEMENTED;
return 0;
}
/*
* @implemented
*/
BOOL
WINAPI
SetCursorPos(int X,
int Y)
{
return NtUserSetCursorPos(X,Y);
}
/*
* @implemented
*/
BOOL
WINAPI
GetCursorPos(LPPOINT lpPoint)
{
BOOL res;
/* Windows doesn't check if lpPoint == NULL, we do */
if(!lpPoint)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
res = NtUserGetCursorPos(lpPoint);
return res;
}
#undef CopyCursor
/*
* @implemented
*/
HCURSOR
WINAPI
CopyCursor(HCURSOR pcur)
{
ICONINFO IconInfo;
if(GetIconInfo((HANDLE)pcur, &IconInfo))
{
return (HCURSOR)NtUserCreateCursorIconHandle(&IconInfo, FALSE);
}
return (HCURSOR)0;
}
/* INTERNAL ******************************************************************/
/* This callback routine is called directly after switching to gui mode */
NTSTATUS
WINAPI
User32SetupDefaultCursors(PVOID Arguments,
ULONG ArgumentLength)
{
BOOL *DefaultCursor = (BOOL*)Arguments;
LRESULT Result = TRUE;
if(*DefaultCursor)
{
/* set default cursor */
SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
}
else
{
/* FIXME load system cursor scheme */
SetCursor(0);
SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
}
return(ZwCallbackReturn(&Result, sizeof(LRESULT), STATUS_SUCCESS));
}
Reference in a new issue Copy permalink