wine/dlls/wing.dll16/wing.c
2009-11-24 15:53:36 +01:00

318 lines
9.4 KiB
C

/*
* WinG support
*
* Copyright (C) Robert Pouliot <krynos@clic.net>
*
* 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 "config.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#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}
*
* The Windows Game dll provides a number of functions designed to allow
* programmers to bypass Gdi and write directly to video memory. The intention
* was to bolster the use of Windows as a gaming platform and remove the
* need for Dos based games using 32 bit Dos extenders.
*
* This initial approach could not compete with the performance of Dos games
* (such as Doom and Warcraft) at the time, and so this dll was eventually
* superseded by DirectX. It should not be used by new applications, and is
* provided only for compatibility with older Windows programs.
*/
typedef enum WING_DITHER_TYPE
{
WING_DISPERSED_4x4, WING_DISPERSED_8x8, WING_CLUSTERED_4x4
} WING_DITHER_TYPE;
/***********************************************************************
* WinGCreateDC (WING.1001)
*
* Create a new WinG device context.
*
* PARAMS
* None.
*
* RETURNS
* Success: A handle to the created device context.
* Failure: A NULL handle.
*/
HDC16 WINAPI WinGCreateDC16(void)
{
TRACE("(void)\n");
return HDC_16( CreateCompatibleDC( 0 ));
}
/***********************************************************************
* WinGRecommendDIBFormat (WING.1002)
*
* Get the recommended format of bitmaps for the current display.
*
* PARAMS
* bmpi [O] Destination for format information
*
* RETURNS
* Success: TRUE. bmpi is filled with the best (fastest) bitmap format
* Failure: FALSE, if bmpi is NULL.
*/
BOOL16 WINAPI WinGRecommendDIBFormat16(BITMAPINFO *bmpi)
{
TRACE("(%p)\n", bmpi);
if (!bmpi)
return FALSE;
bmpi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmpi->bmiHeader.biWidth = 320;
bmpi->bmiHeader.biHeight = -1;
bmpi->bmiHeader.biPlanes = 1;
bmpi->bmiHeader.biBitCount = 8;
bmpi->bmiHeader.biCompression = BI_RGB;
bmpi->bmiHeader.biSizeImage = 0;
bmpi->bmiHeader.biXPelsPerMeter = 0;
bmpi->bmiHeader.biYPelsPerMeter = 0;
bmpi->bmiHeader.biClrUsed = 0;
bmpi->bmiHeader.biClrImportant = 0;
return TRUE;
}
/***********************************************************************
* WinGCreateBitmap (WING.1003)
*
* Create a new WinG bitmap.
*
* PARAMS
* hdc [I] WinG device context
* bmpi [I] Information about the bitmap
* bits [I] Location of the bitmap image data
*
* RETURNS
* Success: A handle to the created bitmap.
* Failure: A NULL handle.
*/
HBITMAP16 WINAPI WinGCreateBitmap16(HDC16 hdc, BITMAPINFO *bmpi, SEGPTR *bits)
{
LPVOID bits32;
HBITMAP hbitmap;
TRACE("(%d,%p,%p): create %dx%dx%d bitmap\n", hdc, bmpi, bits,
bmpi->bmiHeader.biWidth, bmpi->bmiHeader.biHeight, bmpi->bmiHeader.biPlanes);
hbitmap = CreateDIBSection( HDC_32(hdc), bmpi, BI_RGB, &bits32, 0, 0 );
if (hbitmap)
{
SEGPTR segptr = alloc_segptr_bits( hbitmap, bits32 );
if (bits) *bits = segptr;
}
return HBITMAP_16(hbitmap);
}
/***********************************************************************
* WinGGetDIBPointer (WING.1004)
*/
SEGPTR WINAPI WinGGetDIBPointer16(HBITMAP16 hWinGBitmap, BITMAPINFO* 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;
}
/***********************************************************************
* WinGSetDIBColorTable (WING.1006)
*
* Set all or part of the color table for a WinG device context.
*
* PARAMS
* hdc [I] WinG device context
* start [I] Start color
* num [I] Number of entries to set
* colors [I] Array of color data
*
* RETURNS
* The number of entries set.
*/
UINT16 WINAPI WinGSetDIBColorTable16(HDC16 hdc, UINT16 start, UINT16 num, RGBQUAD *colors)
{
TRACE("(%d,%d,%d,%p)\n", hdc, start, num, colors);
return SetDIBColorTable( HDC_32(hdc), start, num, colors );
}
/***********************************************************************
* WinGGetDIBColorTable (WING.1005)
*
* Get all or part of the color table for a WinG device context.
*
* PARAMS
* hdc [I] WinG device context
* start [I] Start color
* num [I] Number of entries to set
* colors [O] Destination for the array of color data
*
* RETURNS
* The number of entries retrieved.
*/
UINT16 WINAPI WinGGetDIBColorTable16(HDC16 hdc, UINT16 start, UINT16 num, RGBQUAD *colors)
{
TRACE("(%d,%d,%d,%p)\n", hdc, start, num, colors);
return GetDIBColorTable( HDC_32(hdc), start, num, colors );
}
/***********************************************************************
* WinGCreateHalfTonePalette (WING.1007)
*
* Create a half tone palette.
*
* PARAMS
* None.
*
* RETURNS
* Success: A handle to the created palette.
* Failure: A NULL handle.
*/
HPALETTE16 WINAPI WinGCreateHalfTonePalette16(void)
{
HDC hdc = CreateCompatibleDC(0);
HPALETTE16 ret = HPALETTE_16( CreateHalftonePalette( hdc ));
TRACE("(void)\n");
DeleteDC( hdc );
return ret;
}
/***********************************************************************
* WinGCreateHalfToneBrush (WING.1008)
*
* Create a half tone brush for a WinG device context.
*
* PARAMS
* winDC [I] WinG device context
* col [I] Color
* type [I] Desired dithering type.
*
* RETURNS
* Success: A handle to the created brush.
* Failure: A NULL handle.
*/
HBRUSH16 WINAPI WinGCreateHalfToneBrush16(HDC16 winDC, COLORREF col,
WING_DITHER_TYPE type)
{
TRACE("(%d,%d,%d)\n", winDC, col, type);
return HBRUSH_16( CreateSolidBrush( col ));
}
/***********************************************************************
* WinGStretchBlt (WING.1009)
*
* See StretchBlt16.
*/
BOOL16 WINAPI WinGStretchBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
INT16 widDest, INT16 heiDest,
HDC16 srcDC, INT16 xSrc, INT16 ySrc,
INT16 widSrc, INT16 heiSrc)
{
BOOL retval;
TRACE("(%d,%d,...)\n", destDC, srcDC);
SetStretchBltMode( HDC_32(destDC), COLORONCOLOR );
retval = StretchBlt( HDC_32(destDC), xDest, yDest, widDest, heiDest,
HDC_32(srcDC), xSrc, ySrc, widSrc, heiSrc, SRCCOPY );
SetStretchBltMode( HDC_32(destDC), BLACKONWHITE );
return retval;
}
/***********************************************************************
* WinGBitBlt (WING.1010)
*
* See BitBlt16.
*/
BOOL16 WINAPI WinGBitBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
INT16 widDest, INT16 heiDest, HDC16 srcDC,
INT16 xSrc, INT16 ySrc)
{
TRACE("(%d,%d,...)\n", destDC, srcDC);
return BitBlt( HDC_32(destDC), xDest, yDest, widDest, heiDest, HDC_32(srcDC), xSrc, ySrc, SRCCOPY );
}