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wing: Reimplement support for WinGGetDIBPointer16.

This commit is contained in:
Alexandre Julliard 2009-11-24 10:58:55 +01:00
parent 9da3365e84
commit 92cd5a5c6b
1 changed files with 63 additions and 20 deletions
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83
dlls/wing.dll16/wing.c
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@ -27,10 +27,64 @@
#include "wingdi.h"
#include "wownt32.h"
#include "wine/wingdi16.h"
#include "wine/list.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wing);
struct dib_segptr_bits
{
struct list entry;
HBITMAP bmp;
WORD sel;
WORD count;
};
static struct list dib_segptr_list = LIST_INIT( dib_segptr_list );
/* remove saved bits for bitmaps that no longer exist */
static void cleanup_segptr_bits(void)
{
unsigned int i;
struct dib_segptr_bits *bits, *next;
LIST_FOR_EACH_ENTRY_SAFE( bits, next, &dib_segptr_list, struct dib_segptr_bits, entry )
{
if (GetObjectType( bits->bmp ) == OBJ_BITMAP) continue;
for (i = 0; i < bits->count; i++) FreeSelector16( bits->sel + (i << __AHSHIFT) );
list_remove( &bits->entry );
HeapFree( GetProcessHeap(), 0, bits );
}
}
static SEGPTR alloc_segptr_bits( HBITMAP bmp, void *bits32 )
{
DIBSECTION dib;
unsigned int i, size;
struct dib_segptr_bits *bits;
cleanup_segptr_bits();
if (!(bits = HeapAlloc( GetProcessHeap(), 0, sizeof(*bits) ))) return 0;
GetObjectW( bmp, sizeof(dib), &dib );
size = dib.dsBm.bmHeight * dib.dsBm.bmWidthBytes;
/* calculate number of sel's needed for size with 64K steps */
bits->bmp = bmp;
bits->count = (size + 0xffff) / 0x10000;
bits->sel = AllocSelectorArray16( bits->count );
for (i = 0; i < bits->count; i++)
{
SetSelectorBase(bits->sel + (i << __AHSHIFT), (DWORD)bits32 + i * 0x10000);
SetSelectorLimit16(bits->sel + (i << __AHSHIFT), size - 1); /* yep, limit is correct */
size -= 0x10000;
}
list_add_head( &dib_segptr_list, &bits->entry );
return MAKESEGPTR( bits->sel, 0 );
}
/*************************************************************************
* WING {WING}
*
@ -127,25 +181,8 @@ HBITMAP16 WINAPI WinGCreateBitmap16(HDC16 hdc, BITMAPINFO *bmpi, SEGPTR *bits)
hbitmap = CreateDIBSection( HDC_32(hdc), bmpi, BI_RGB, &bits32, 0, 0 );
if (hbitmap)
{
DIBSECTION dib;
DWORD size;
WORD count, sel;
int i;
GetObjectW( hbitmap, sizeof(dib), &dib );
size = dib.dsBm.bmHeight * dib.dsBm.bmWidthBytes;
/* calculate number of sel's needed for size with 64K steps */
count = (size + 0xffff) / 0x10000;
sel = AllocSelectorArray16(count);
for (i = 0; i < count; i++)
{
SetSelectorBase(sel + (i << __AHSHIFT), (DWORD)bits32 + i * 0x10000);
SetSelectorLimit16(sel + (i << __AHSHIFT), size - 1); /* yep, limit is correct */
size -= 0x10000;
}
if (bits) *bits = MAKESEGPTR( sel, 0 );
SEGPTR segptr = alloc_segptr_bits( hbitmap, bits32 );
if (bits) *bits = segptr;
}
return HBITMAP_16(hbitmap);
}
@ -155,7 +192,13 @@ HBITMAP16 WINAPI WinGCreateBitmap16(HDC16 hdc, BITMAPINFO *bmpi, SEGPTR *bits)
*/
SEGPTR WINAPI WinGGetDIBPointer16(HBITMAP16 hWinGBitmap, BITMAPINFO* bmpi)
{
FIXME("%x, %p: not supported\n", hWinGBitmap, bmpi );
struct dib_segptr_bits *bits;
if (bmpi) FIXME( "%04x %p: setting BITMAPINFO not supported\n", hWinGBitmap, bmpi );
LIST_FOR_EACH_ENTRY( bits, &dib_segptr_list, struct dib_segptr_bits, entry )
if (HBITMAP_16(bits->bmp) == hWinGBitmap) return MAKESEGPTR( bits->sel, 0 );
return 0;
}