BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage )
{
BRUSHOBJ *brush;
BOOL ret = FALSE;
if (!(brush = GDI_GetObjPtr( handle, OBJ_BRUSH ))) return FALSE;
if (!brush->info)
{
BITMAPOBJ *bmp = GDI_GetObjPtr( brush->bitmap, OBJ_BITMAP );
if (bmp)
{
store_bitmap_bits( brush, bmp );
GDI_ReleaseObj( brush->bitmap );
}
}
if (brush->info)
{
memcpy( info, brush->info, get_dib_info_size( brush->info, brush->usage ));
if (info->bmiHeader.biBitCount <= 8 && !info->bmiHeader.biClrUsed)
fill_default_color_table( info );
*bits = brush->bits.ptr;
*usage = brush->usage;
ret = TRUE;
}
GDI_ReleaseObj( handle );
return ret;
}
/*
* REGION_FrameRgn
* Create a region that is a frame around another region.
* Expand all rectangles by +/- x and y, then subtract original region.
*/
BOOL
REGION_FrameRgn( HRGN hDest, HRGN hSrc, INT x, INT y )
{
BOOL bRet;
MWRGNOBJ *srcObj = (MWRGNOBJ*) GDI_GetObjPtr( hSrc, OBJ_REGION );
if (srcObj->rgn->numRects != 0)
{
MWRGNOBJ* destObj = (MWRGNOBJ*) GDI_GetObjPtr( hDest, OBJ_REGION );
RECT *pRect, *pEndRect;
RECT tempRect;
EMPTY_REGION( destObj->rgn );
pEndRect = srcObj->rgn->rects + srcObj->rgn->numRects;
for(pRect = srcObj->rgn->rects; pRect < pEndRect; pRect++)
{
tempRect.left = pRect->left - x;
tempRect.top = pRect->top - y;
tempRect.right = pRect->right + x;
tempRect.bottom = pRect->bottom + y;
GdUnionRectWithRegion( &tempRect, destObj->rgn );
}
GdSubtractRegion( destObj->rgn, destObj->rgn, srcObj->rgn );
bRet = TRUE;
}
else
bRet = FALSE;
return bRet;
}
/*
* Note: The behavior is correct even if src and dest regions are the same.
*/
INT WINAPI
CombineRgn(HRGN hDest, HRGN hSrc1, HRGN hSrc2, INT mode)
{
MWRGNOBJ *destObj = (MWRGNOBJ *) GDI_GetObjPtr( hDest, OBJ_REGION);
INT result = ERRORREGION;
/*TRACE(region, " %04x,%04x -> %04x mode=%x\n", hSrc1, hSrc2, hDest,mode);*/
if (destObj)
{
MWRGNOBJ *src1Obj = (MWRGNOBJ *) GDI_GetObjPtr( hSrc1, OBJ_REGION);
if (src1Obj)
{
/*TRACE(region, "dump:\n");
if(TRACE_ON(region))
REGION_DumpRegion(src1Obj->rgn);*/
if (mode == RGN_COPY)
{
GdCopyRegion( destObj->rgn, src1Obj->rgn );
result = destObj->rgn->type;
}
else
{
MWRGNOBJ *src2Obj = (MWRGNOBJ *) GDI_GetObjPtr( hSrc2, OBJ_REGION);
if (src2Obj)
{
/*TRACE(region, "dump:\n");
if(TRACE_ON(region))
REGION_DumpRegion(src2Obj->rgn);*/
switch (mode)
{
case RGN_AND:
GdIntersectRegion( destObj->rgn, src1Obj->rgn, src2Obj->rgn);
break;
case RGN_OR:
GdUnionRegion( destObj->rgn, src1Obj->rgn, src2Obj->rgn );
break;
case RGN_XOR:
GdXorRegion( destObj->rgn, src1Obj->rgn, src2Obj->rgn );
break;
case RGN_DIFF:
GdSubtractRegion( destObj->rgn, src1Obj->rgn, src2Obj->rgn );
break;
}
result = destObj->rgn->type;
}
}
}
/*TRACE(region, "dump:\n");
if(TRACE_ON(region))
REGION_DumpRegion(destObj->rgn);*/
}
return result;
}
BOOL WINAPI
EqualRgn( HRGN hrgn1, HRGN hrgn2 )
{
MWRGNOBJ *obj1, *obj2;
if ((obj1 = (MWRGNOBJ *) GDI_GetObjPtr( hrgn1, OBJ_REGION )))
if ((obj2 = (MWRGNOBJ *) GDI_GetObjPtr( hrgn2, OBJ_REGION )))
return GdEqualRegion(obj1->rgn, obj2->rgn);
return FALSE;
}
static BOOL copy_bitmap( BRUSHOBJ *brush, HBITMAP bitmap )
{
BITMAPINFO *info;
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
if (!bmp) return FALSE;
if (!bmp->dib)
{
if ((brush->bitmap = CreateBitmap( bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
bmp->bitmap.bmPlanes, bmp->bitmap.bmBitsPixel, NULL )))
{
if (bmp->funcs->pCopyBitmap( bitmap, brush->bitmap ))
{
BITMAPOBJ *copy = GDI_GetObjPtr( brush->bitmap, OBJ_BITMAP );
copy->funcs = bmp->funcs;
GDI_ReleaseObj( copy );
}
else
{
DeleteObject( brush->bitmap );
brush->bitmap = 0;
}
}
GDI_ReleaseObj( bitmap );
return brush->bitmap != 0;
}
info = HeapAlloc( GetProcessHeap(), 0,
get_dib_info_size( (BITMAPINFO *)&bmp->dib->dsBmih, DIB_RGB_COLORS ));
if (!info) goto done;
info->bmiHeader = bmp->dib->dsBmih;
if (info->bmiHeader.biCompression == BI_BITFIELDS)
memcpy( &info->bmiHeader + 1, bmp->dib->dsBitfields, sizeof(bmp->dib->dsBitfields) );
else if (info->bmiHeader.biClrUsed)
memcpy( &info->bmiHeader + 1, bmp->color_table, info->bmiHeader.biClrUsed * sizeof(RGBQUAD) );
if (!(brush->bits.ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage )))
{
HeapFree( GetProcessHeap(), 0, info );
goto done;
}
memcpy( brush->bits.ptr, bmp->dib->dsBm.bmBits, info->bmiHeader.biSizeImage );
brush->bits.is_copy = TRUE;
brush->bits.free = free_heap_bits;
brush->info = info;
brush->usage = DIB_RGB_COLORS;
done:
GDI_ReleaseObj( bitmap );
return brush->info != NULL;
}
/***********************************************************************
* BRUSH_SelectObject
*/
static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, HDC hdc )
{
BRUSHOBJ *brush;
HGDIOBJ ret = 0;
DC *dc = get_dc_ptr( hdc );
if (!dc)
{
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
if ((brush = GDI_GetObjPtr( handle, OBJ_BRUSH )))
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSelectBrush );
HBITMAP bitmap = brush->bitmap;
BITMAPINFO *info;
void *bits;
UINT usage;
if (bitmap && !brush->info)
{
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
/* fetch the bitmap bits if we are selecting into a different type of DC */
if (bmp && bmp->funcs != physdev->funcs) store_bitmap_bits( brush, bmp );
GDI_ReleaseObj( bitmap );
}
info = brush->info;
bits = brush->bits.ptr;
usage = brush->usage;
GDI_inc_ref_count( handle );
GDI_ReleaseObj( handle );
if (!physdev->funcs->pSelectBrush( physdev, handle, bitmap, info, bits, usage ))
{
GDI_dec_ref_count( handle );
}
else
{
ret = dc->hBrush;
dc->hBrush = handle;
GDI_dec_ref_count( ret );
}
}
release_dc_ptr( dc );
return ret;
}
HRGN WINAPI
ExtCreateRegion(const XFORM* lpXform, DWORD dwCount, const RGNDATA* rgndata)
{
HRGN hrgn = CreateRectRgn(0, 0, 0, 0);
MWRGNOBJ *obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
RECT *pCurRect, *pEndRect;
/*TRACE(region, " %p %ld %p. Returning %04x\n",
lpXform, dwCount, rgndata, hrgn);*/
if(!hrgn)
{
WARN(region, "Can't create a region!\n");
return 0;
}
if(lpXform)
WARN(region, "Xform not implemented - ignoring\n");
if(rgndata->rdh.iType != RDH_RECTANGLES)
{
WARN(region, "Type not RDH_RECTANGLES\n");
DeleteObject( hrgn );
return 0;
}
pEndRect = (RECT *)rgndata->Buffer + rgndata->rdh.nCount;
for(pCurRect = (RECT *)rgndata->Buffer; pCurRect < pEndRect; pCurRect++)
GdUnionRectWithRegion( pCurRect, obj->rgn );
return hrgn;
}
DWORD WINAPI
GetRegionData(HRGN hrgn, DWORD count, LPRGNDATA rgndata)
{
DWORD size;
MWRGNOBJ *obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
MWCLIPREGION *rgn;
/*TRACE(region," %04x count = %ld, rgndata = %p\n", hrgn, count, rgndata);*/
if(!obj) return 0;
rgn = obj->rgn;
size = rgn->numRects * sizeof(RECT);
if(count < (size + sizeof(RGNDATAHEADER)) || rgndata == NULL)
return size + sizeof(RGNDATAHEADER);
rgndata->rdh.dwSize = sizeof(RGNDATAHEADER);
rgndata->rdh.iType = RDH_RECTANGLES;
rgndata->rdh.nCount = rgn->numRects;
rgndata->rdh.nRgnSize = size;
rgndata->rdh.rcBound.left = rgn->extents.left;
rgndata->rdh.rcBound.top = rgn->extents.top;
rgndata->rdh.rcBound.right = rgn->extents.right;
rgndata->rdh.rcBound.bottom = rgn->extents.bottom;
memcpy( rgndata->Buffer, rgn->rects, size );
return 1;
}
/***********************************************************************
* EMFDRV_SelectObject
*/
HGDIOBJ EMFDRV_SelectObject( DC *dc, HGDIOBJ handle )
{
GDIOBJHDR * ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
HGDIOBJ ret = 0;
if (!ptr) return 0;
TRACE("hdc=%04x %04x\n", dc->hSelf, handle );
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
ret = EMFDRV_PEN_SelectObject( dc, handle );
break;
case BRUSH_MAGIC:
ret = EMFDRV_BRUSH_SelectObject( dc, handle );
break;
case FONT_MAGIC:
ret = EMFDRV_FONT_SelectObject( dc, handle );
break;
case BITMAP_MAGIC:
ret = EMFDRV_BITMAP_SelectObject( dc, handle );
break;
}
GDI_ReleaseObj( handle );
return ret;
}
/***********************************************************************
* GDIRealizePalette (Not a Windows API)
*/
UINT WINAPI GDIRealizePalette( HDC hdc )
{
UINT realized = 0;
DC* dc = get_dc_ptr( hdc );
if (!dc) return 0;
TRACE("%p...\n", hdc );
if( dc->hPalette == GetStockObject( DEFAULT_PALETTE ))
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
realized = physdev->funcs->pRealizeDefaultPalette( physdev );
}
else if (InterlockedExchangePointer( (void **)&hLastRealizedPalette, dc->hPalette ) != dc->hPalette)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizePalette );
PALETTEOBJ *palPtr = GDI_GetObjPtr( dc->hPalette, OBJ_PAL );
if (palPtr)
{
realized = physdev->funcs->pRealizePalette( physdev, dc->hPalette,
(dc->hPalette == hPrimaryPalette) );
palPtr->unrealize = physdev->funcs->pUnrealizePalette;
GDI_ReleaseObj( dc->hPalette );
}
}
else TRACE(" skipping (hLastRealizedPalette = %p)\n", hLastRealizedPalette);
release_dc_ptr( dc );
TRACE(" realized %i colors.\n", realized );
return realized;
}
/***********************************************************************
* GetNearestPaletteIndex [GDI32.@]
*
* Gets palette index for color.
*
* NOTES
* Should index be initialized to CLR_INVALID instead of 0?
*
* RETURNS
* Success: Index of entry in logical palette
* Failure: CLR_INVALID
*/
UINT WINAPI GetNearestPaletteIndex(
HPALETTE hpalette, /* [in] Handle of logical color palette */
COLORREF color) /* [in] Color to be matched */
{
PALETTEOBJ* palObj = GDI_GetObjPtr( hpalette, OBJ_PAL );
UINT index = 0;
if( palObj )
{
int i, diff = 0x7fffffff;
int r,g,b;
PALETTEENTRY* entry = palObj->entries;
for( i = 0; i < palObj->count && diff ; i++, entry++)
{
r = entry->peRed - GetRValue(color);
g = entry->peGreen - GetGValue(color);
b = entry->peBlue - GetBValue(color);
r = r*r + g*g + b*b;
if( r < diff ) { index = i; diff = r; }
}
GDI_ReleaseObj( hpalette );
}
TRACE("(%p,%06x): returning %d\n", hpalette, color, index );
return index;
}
/***********************************************************************
* SetPaletteEntries [GDI32.@]
*
* Sets color values for range in palette.
*
* RETURNS
* Success: Number of entries that were set
* Failure: 0
*/
UINT WINAPI SetPaletteEntries(
HPALETTE hpalette, /* [in] Handle of logical palette */
UINT start, /* [in] Index of first entry to set */
UINT count, /* [in] Number of entries to set */
const PALETTEENTRY *entries) /* [in] Address of array of structures */
{
PALETTEOBJ * palPtr;
UINT numEntries;
TRACE("hpal=%p,start=%i,count=%i\n",hpalette,start,count );
hpalette = get_full_gdi_handle( hpalette );
if (hpalette == GetStockObject(DEFAULT_PALETTE)) return 0;
palPtr = GDI_GetObjPtr( hpalette, OBJ_PAL );
if (!palPtr) return 0;
numEntries = palPtr->count;
if (start >= numEntries)
{
GDI_ReleaseObj( hpalette );
return 0;
}
if (start+count > numEntries) count = numEntries - start;
memcpy( &palPtr->entries[start], entries, count * sizeof(PALETTEENTRY) );
GDI_ReleaseObj( hpalette );
UnrealizeObject( hpalette );
return count;
}
/***********************************************************************
* GetPaletteEntries [GDI32.@]
*
* Retrieves palette entries.
*
* RETURNS
* Success: Number of entries from logical palette
* Failure: 0
*/
UINT WINAPI GetPaletteEntries(
HPALETTE hpalette, /* [in] Handle of logical palette */
UINT start, /* [in] First entry to receive */
UINT count, /* [in] Number of entries to receive */
LPPALETTEENTRY entries) /* [out] Address of array receiving entries */
{
PALETTEOBJ * palPtr;
UINT numEntries;
TRACE("hpal = %p, count=%i\n", hpalette, count );
palPtr = GDI_GetObjPtr( hpalette, OBJ_PAL );
if (!palPtr) return 0;
/* NOTE: not documented but test show this to be the case */
if (count == 0)
{
count = palPtr->count;
}
else
{
numEntries = palPtr->count;
if (start+count > numEntries) count = numEntries - start;
if (entries)
{
if (start >= numEntries) count = 0;
else memcpy( entries, &palPtr->entries[start], count * sizeof(PALETTEENTRY) );
}
}
GDI_ReleaseObj( hpalette );
return count;
}
/***********************************************************************
* BITMAP_SetOwnerDC
*
* Set the type of DC that owns the bitmap. This is used when the
* bitmap is selected into a device to initialize the bitmap function
* table.
*/
BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, DC *dc )
{
BITMAPOBJ *bitmap;
BOOL ret;
/* never set the owner of the stock bitmap since it can be selected in multiple DCs */
if (hbitmap == GetStockObject(DEFAULT_BITMAP)) return TRUE;
if (!(bitmap = GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) return FALSE;
ret = TRUE;
if (!bitmap->funcs) /* not owned by a DC yet */
{
if (dc->funcs->pCreateBitmap) ret = dc->funcs->pCreateBitmap( dc->physDev, hbitmap,
bitmap->bitmap.bmBits );
if (ret) bitmap->funcs = dc->funcs;
}
else if (bitmap->funcs != dc->funcs)
{
FIXME( "Trying to select bitmap %p in different DC type\n", hbitmap );
ret = FALSE;
}
GDI_ReleaseObj( hbitmap );
return ret;
}
/***********************************************************************
* BITMAP_GetObject
*/
static INT BITMAP_GetObject( HGDIOBJ handle, INT count, LPVOID buffer )
{
INT ret;
BITMAPOBJ *bmp = GDI_GetObjPtr( handle, OBJ_BITMAP );
if (!bmp) return 0;
if (!buffer) ret = sizeof(BITMAP);
else if (count < sizeof(BITMAP)) ret = 0;
else if (bmp->dib)
{
if (count >= sizeof(DIBSECTION))
{
DIBSECTION *dib = buffer;
*dib = *bmp->dib;
dib->dsBmih.biHeight = abs( dib->dsBmih.biHeight );
ret = sizeof(DIBSECTION);
}
else /* if (count >= sizeof(BITMAP)) */
{
DIBSECTION *dib = bmp->dib;
memcpy( buffer, &dib->dsBm, sizeof(BITMAP) );
ret = sizeof(BITMAP);
}
}
else
{
memcpy( buffer, &bmp->bitmap, sizeof(BITMAP) );
((BITMAP *) buffer)->bmBits = NULL;
ret = sizeof(BITMAP);
}
GDI_ReleaseObj( handle );
return ret;
}
/***********************************************************************
* BITMAP_SetOwnerDC
*
* Set the type of DC that owns the bitmap. This is used when the
* bitmap is selected into a device to initialize the bitmap function
* table.
*/
static BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, PHYSDEV physdev )
{
BITMAPOBJ *bitmap;
BOOL ret = TRUE;
/* never set the owner of the stock bitmap since it can be selected in multiple DCs */
if (hbitmap == GetStockObject(DEFAULT_BITMAP)) return TRUE;
if (!(bitmap = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return FALSE;
if (!bitmap->dib && bitmap->funcs != physdev->funcs)
{
/* we can only change from the null driver to some other driver */
if (bitmap->funcs == &null_driver)
{
if (physdev->funcs->pCreateBitmap)
{
ret = physdev->funcs->pCreateBitmap( physdev, hbitmap );
if (ret)
{
bitmap->funcs = physdev->funcs;
set_initial_bitmap_bits( hbitmap, bitmap );
}
}
else bitmap->funcs = &dib_driver; /* use the DIB driver to emulate DDB support */
}
else
{
FIXME( "Trying to select bitmap %p in different DC type\n", hbitmap );
ret = FALSE;
}
}
GDI_ReleaseObj( hbitmap );
return ret;
}
/***********************************************************************
* GetObject (GDI.82)
*/
INT16 WINAPI GetObject16( HANDLE16 handle, INT16 count, LPVOID buffer )
{
GDIOBJHDR * ptr;
INT16 result = 0;
TRACE("%04x %d %p\n", handle, count, buffer );
if (!count) return 0;
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = PEN_GetObject16( (PENOBJ *)ptr, count, buffer );
break;
case BRUSH_MAGIC:
result = BRUSH_GetObject16( (BRUSHOBJ *)ptr, count, buffer );
break;
case BITMAP_MAGIC:
result = BITMAP_GetObject16( (BITMAPOBJ *)ptr, count, buffer );
break;
case FONT_MAGIC:
result = FONT_GetObject16( (FONTOBJ *)ptr, count, buffer );
break;
case PALETTE_MAGIC:
result = PALETTE_GetObject( (PALETTEOBJ *)ptr, count, buffer );
break;
}
GDI_ReleaseObj( handle );
return result;
}
/***********************************************************************
* UnrealizeObject (GDI32.@)
*/
BOOL WINAPI UnrealizeObject( HGDIOBJ obj )
{
BOOL result = TRUE;
/* Check if object is valid */
GDIOBJHDR * header = GDI_GetObjPtr( obj, MAGIC_DONTCARE );
if (!header) return FALSE;
TRACE("%04x\n", obj );
/* Unrealize object */
switch(GDIMAGIC(header->wMagic))
{
case PALETTE_MAGIC:
result = PALETTE_UnrealizeObject( obj, (PALETTEOBJ *)header );
break;
case BRUSH_MAGIC:
/* Windows resets the brush origin. We don't need to. */
break;
}
GDI_ReleaseObj( obj );
return result;
}
/***********************************************************************
* GetObjectW (GDI32.@)
*/
INT WINAPI GetObjectW( HANDLE handle, INT count, LPVOID buffer )
{
GDIOBJHDR * ptr;
INT result = 0;
TRACE("%08x %d %p\n", handle, count, buffer );
if (!count) return 0;
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = PEN_GetObject( (PENOBJ *)ptr, count, buffer );
break;
case BRUSH_MAGIC:
result = BRUSH_GetObject( (BRUSHOBJ *)ptr, count, buffer );
break;
case BITMAP_MAGIC:
result = BITMAP_GetObject( (BITMAPOBJ *)ptr, count, buffer );
break;
case FONT_MAGIC:
result = FONT_GetObjectW( (FONTOBJ *)ptr, count, buffer );
break;
case PALETTE_MAGIC:
result = PALETTE_GetObject( (PALETTEOBJ *)ptr, count, buffer );
break;
default:
FIXME("Magic %04x not implemented\n", GDIMAGIC(ptr->wMagic) );
break;
}
GDI_ReleaseObj( handle );
return result;
}
INT WINAPI
GetRgnBox( HRGN hrgn, LPRECT rect )
{
MWRGNOBJ * obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
if (obj)
return GdGetRegionBox(obj->rgn, rect);
return ERRORREGION;
}
/***********************************************************************
* GetBitmapBits [GDI32.@]
*
* Copies bitmap bits of bitmap to buffer.
*
* RETURNS
* Success: Number of bytes copied
* Failure: 0
*/
LONG WINAPI GetBitmapBits(
HBITMAP hbitmap, /* [in] Handle to bitmap */
LONG count, /* [in] Number of bytes to copy */
LPVOID bits) /* [out] Pointer to buffer to receive bits */
{
char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
BITMAPINFO *info = (BITMAPINFO *)buffer;
struct gdi_image_bits src_bits;
struct bitblt_coords src;
int dst_stride, max, ret;
BITMAPOBJ *bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
if (!bmp) return 0;
dst_stride = get_bitmap_stride( bmp->dib.dsBm.bmWidth, bmp->dib.dsBm.bmBitsPixel );
ret = max = dst_stride * bmp->dib.dsBm.bmHeight;
if (!bits) goto done;
if (count > max) count = max;
ret = count;
src.visrect.left = 0;
src.visrect.right = bmp->dib.dsBm.bmWidth;
src.visrect.top = 0;
src.visrect.bottom = (count + dst_stride - 1) / dst_stride;
src.x = src.y = 0;
src.width = src.visrect.right - src.visrect.left;
src.height = src.visrect.bottom - src.visrect.top;
if (!get_image_from_bitmap( bmp, info, &src_bits, &src ))
{
const char *src_ptr = src_bits.ptr;
int src_stride = get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount );
/* GetBitmapBits returns 16-bit aligned data */
if (info->bmiHeader.biHeight > 0)
{
src_ptr += (info->bmiHeader.biHeight - 1) * src_stride;
src_stride = -src_stride;
}
src_ptr += src.visrect.top * src_stride;
if (src_stride == dst_stride) memcpy( bits, src_ptr, count );
else while (count > 0)
{
memcpy( bits, src_ptr, min( count, dst_stride ) );
src_ptr += src_stride;
bits = (char *)bits + dst_stride;
count -= dst_stride;
}
if (src_bits.free) src_bits.free( &src_bits );
}
else ret = 0;
done:
GDI_ReleaseObj( hbitmap );
return ret;
}
/***********************************************************************
* BITMAP_SelectObject
*/
static HGDIOBJ BITMAP_SelectObject( HGDIOBJ handle, HDC hdc )
{
HGDIOBJ ret;
BITMAPOBJ *bitmap;
DC *dc;
if (!(dc = get_dc_ptr( hdc ))) return 0;
if (GetObjectType( hdc ) != OBJ_MEMDC)
{
ret = 0;
goto done;
}
ret = dc->hBitmap;
if (handle == dc->hBitmap) goto done; /* nothing to do */
if (!(bitmap = GDI_GetObjPtr( handle, BITMAP_MAGIC )))
{
ret = 0;
goto done;
}
if (bitmap->header.dwCount && (handle != GetStockObject(DEFAULT_BITMAP)))
{
WARN( "Bitmap already selected in another DC\n" );
GDI_ReleaseObj( handle );
ret = 0;
goto done;
}
if (!bitmap->funcs && !BITMAP_SetOwnerDC( handle, dc ))
{
GDI_ReleaseObj( handle );
ret = 0;
goto done;
}
if (dc->funcs->pSelectBitmap && !dc->funcs->pSelectBitmap( dc->physDev, handle ))
{
GDI_ReleaseObj( handle );
ret = 0;
}
else
{
dc->hBitmap = handle;
GDI_inc_ref_count( handle );
dc->dirty = 0;
SetRectRgn( dc->hVisRgn, 0, 0, bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight);
GDI_ReleaseObj( handle );
DC_InitDC( dc );
GDI_dec_ref_count( ret );
}
done:
release_dc_ptr( dc );
return ret;
}
/******************************************************************************
* GetBitmapDimensionEx [GDI32.@]
*
* Retrieves dimensions of a bitmap.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI GetBitmapDimensionEx(
HBITMAP hbitmap, /* [in] Handle to bitmap */
LPSIZE size) /* [out] Address of struct receiving dimensions */
{
BITMAPOBJ * bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
if (!bmp) return FALSE;
*size = bmp->size;
GDI_ReleaseObj( hbitmap );
return TRUE;
}
BOOL WINAPI
PtInRegion( HRGN hrgn, INT x, INT y )
{
MWRGNOBJ * obj;
obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
if(!obj)
return FALSE;
return GdPtInRegion(obj->rgn, x, y);
}
/*
* Returns TRUE if rect is at least partly inside hrgn
*/
BOOL WINAPI
RectInRegion( HRGN hrgn, const RECT *rect )
{
MWRGNOBJ * obj;
obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
if(!obj)
return FALSE;
return (GdRectInRegion(obj->rgn, rect) == MWRECT_OUT? FALSE: TRUE);
}
/***********************************************************************
* inc_ref_count
*
* Increment the reference count of a GDI object.
*/
inline static void inc_ref_count( HGDIOBJ handle )
{
GDIOBJHDR *header;
if ((header = GDI_GetObjPtr( handle, MAGIC_DONTCARE )))
{
header->dwCount++;
GDI_ReleaseObj( handle );
}
}
/***********************************************************************
* DeleteObject (GDI32.@)
*/
BOOL WINAPI DeleteObject( HGDIOBJ obj )
{
/* Check if object is valid */
GDIOBJHDR * header;
if (HIWORD(obj)) return FALSE;
if (!(header = GDI_GetObjPtr( obj, MAGIC_DONTCARE ))) return FALSE;
if (!(header->wMagic & OBJECT_NOSYSTEM)
&& (header->wMagic >= FIRST_MAGIC) && (header->wMagic <= LAST_MAGIC))
{
TRACE("Preserving system object %04x\n", obj);
GDI_ReleaseObj( obj );
return TRUE;
}
if (header->dwCount)
{
TRACE("delayed for %04x because object in use, count %ld\n", obj, header->dwCount );
header->dwCount |= 0x80000000; /* mark for delete */
GDI_ReleaseObj( obj );
return TRUE;
}
TRACE("%04x\n", obj );
/* Delete object */
switch(GDIMAGIC(header->wMagic))
{
case PEN_MAGIC:
return GDI_FreeObject( obj, header );
case BRUSH_MAGIC:
return BRUSH_DeleteObject( obj, (BRUSHOBJ*)header );
case FONT_MAGIC:
return FONT_DeleteObject( obj, (FONTOBJ*)header );
case PALETTE_MAGIC:
return PALETTE_DeleteObject(obj,(PALETTEOBJ*)header);
case BITMAP_MAGIC:
return BITMAP_DeleteObject( obj, (BITMAPOBJ*)header);
case REGION_MAGIC:
return REGION_DeleteObject( obj, (RGNOBJ*)header );
case DC_MAGIC:
GDI_ReleaseObj( obj );
return DeleteDC(obj);
case 0 :
WARN("Already deleted\n");
break;
default:
WARN("Unknown magic number (%04x)\n",GDIMAGIC(header->wMagic));
}
GDI_ReleaseObj( obj );
return FALSE;
}
BOOL nulldrv_CopyBitmap( HBITMAP src, HBITMAP dst )
{
BOOL ret = TRUE;
BITMAPOBJ *src_bmp = GDI_GetObjPtr( src, OBJ_BITMAP );
if (!src_bmp) return FALSE;
if (src_bmp->bitmap.bmBits)
{
BITMAPOBJ *dst_bmp = GDI_GetObjPtr( dst, OBJ_BITMAP );
int stride = get_dib_stride( dst_bmp->bitmap.bmWidth, dst_bmp->bitmap.bmBitsPixel );
dst_bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, dst_bmp->bitmap.bmHeight * stride );
if (dst_bmp->bitmap.bmBits)
memcpy( dst_bmp->bitmap.bmBits, src_bmp->bitmap.bmBits, dst_bmp->bitmap.bmHeight * stride );
else
ret = FALSE;
GDI_ReleaseObj( dst );
}
GDI_ReleaseObj( src );
return ret;
}
/***********************************************************************
* GetObjectType (GDI32.@)
*/
DWORD WINAPI GetObjectType( HANDLE handle )
{
GDIOBJHDR * ptr;
INT result = 0;
TRACE("%08x\n", handle );
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = OBJ_PEN;
break;
case BRUSH_MAGIC:
result = OBJ_BRUSH;
break;
case BITMAP_MAGIC:
result = OBJ_BITMAP;
break;
case FONT_MAGIC:
result = OBJ_FONT;
break;
case PALETTE_MAGIC:
result = OBJ_PAL;
break;
case REGION_MAGIC:
result = OBJ_REGION;
break;
case DC_MAGIC:
result = OBJ_DC;
break;
case META_DC_MAGIC:
result = OBJ_METADC;
break;
case METAFILE_MAGIC:
result = OBJ_METAFILE;
break;
case METAFILE_DC_MAGIC:
result = OBJ_METADC;
break;
case ENHMETAFILE_MAGIC:
result = OBJ_ENHMETAFILE;
break;
case ENHMETAFILE_DC_MAGIC:
result = OBJ_ENHMETADC;
break;
default:
FIXME("Magic %04x not implemented\n", GDIMAGIC(ptr->wMagic) );
break;
}
GDI_ReleaseObj( handle );
return result;
}
/***********************************************************************
* IsGDIObject (GDI.462)
*
* returns type of object if valid (W95 system programming secrets p. 264-5)
*/
BOOL16 WINAPI IsGDIObject16( HGDIOBJ16 handle )
{
UINT16 magic = 0;
GDIOBJHDR *object = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
if (object)
{
magic = GDIMAGIC(object->wMagic) - PEN_MAGIC + 1;
GDI_ReleaseObj( handle );
}
return magic;
}