4 * Copyright (C) Robert Pouliot <krynos@clic.net>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
29 #include "wine/wingdi16.h"
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(wing);
34 /*************************************************************************
37 * The Windows Game dll provides a number of functions designed to allow
38 * programmers to bypass Gdi and write directly to video memory. The intention
39 * was to bolster the use of Windows as a gaming platform and remove the
40 * need for Dos based games using 32 bit Dos extenders.
42 * This initial approach could not compete with the performance of Dos games
43 * (such as Doom and Warcraft) at the time, and so this dll was eventually
44 * superseded by DirectX. It should not be used by new applications, and is
45 * provided only for compatibility with older Windows programs.
48 typedef enum WING_DITHER_TYPE
50 WING_DISPERSED_4x4, WING_DISPERSED_8x8, WING_CLUSTERED_4x4
53 /***********************************************************************
54 * WinGCreateDC (WING.1001)
56 * Create a new WinG device context.
62 * Success: A handle to the created device context.
63 * Failure: A NULL handle.
65 HDC16 WINAPI WinGCreateDC16(void)
68 return HDC_16( CreateCompatibleDC( 0 ));
71 /***********************************************************************
72 * WinGRecommendDIBFormat (WING.1002)
74 * Get the recommended format of bitmaps for the current display.
77 * bmpi [O] Destination for format information
80 * Success: TRUE. bmpi is filled with the best (fastest) bitmap format
81 * Failure: FALSE, if bmpi is NULL.
83 BOOL16 WINAPI WinGRecommendDIBFormat16(BITMAPINFO *bmpi)
85 TRACE("(%p)\n", bmpi);
90 bmpi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
91 bmpi->bmiHeader.biWidth = 320;
92 bmpi->bmiHeader.biHeight = -1;
93 bmpi->bmiHeader.biPlanes = 1;
94 bmpi->bmiHeader.biBitCount = 8;
95 bmpi->bmiHeader.biCompression = BI_RGB;
96 bmpi->bmiHeader.biSizeImage = 0;
97 bmpi->bmiHeader.biXPelsPerMeter = 0;
98 bmpi->bmiHeader.biYPelsPerMeter = 0;
99 bmpi->bmiHeader.biClrUsed = 0;
100 bmpi->bmiHeader.biClrImportant = 0;
105 /***********************************************************************
106 * WinGCreateBitmap (WING.1003)
108 * Create a new WinG bitmap.
111 * hdc [I] WinG device context
112 * bmpi [I] Information about the bitmap
113 * bits [I] Location of the bitmap image data
116 * Success: A handle to the created bitmap.
117 * Failure: A NULL handle.
119 HBITMAP16 WINAPI WinGCreateBitmap16(HDC16 hdc, BITMAPINFO *bmpi, SEGPTR *bits)
124 TRACE("(%d,%p,%p): create %dx%dx%d bitmap\n", hdc, bmpi, bits,
125 bmpi->bmiHeader.biWidth, bmpi->bmiHeader.biHeight, bmpi->bmiHeader.biPlanes);
127 hbitmap = CreateDIBSection( HDC_32(hdc), bmpi, BI_RGB, &bits32, 0, 0 );
135 GetObjectW( hbitmap, sizeof(dib), &dib );
136 size = dib.dsBm.bmHeight * dib.dsBm.bmWidthBytes;
138 /* calculate number of sel's needed for size with 64K steps */
139 count = (size + 0xffff) / 0x10000;
140 sel = AllocSelectorArray16(count);
142 for (i = 0; i < count; i++)
144 SetSelectorBase(sel + (i << __AHSHIFT), (DWORD)bits32 + i * 0x10000);
145 SetSelectorLimit16(sel + (i << __AHSHIFT), size - 1); /* yep, limit is correct */
148 if (bits) *bits = MAKESEGPTR( sel, 0 );
150 return HBITMAP_16(hbitmap);
153 /***********************************************************************
154 * WinGGetDIBPointer (WING.1004)
156 SEGPTR WINAPI WinGGetDIBPointer16(HBITMAP16 hWinGBitmap, BITMAPINFO* bmpi)
158 FIXME("%x, %p: not supported\n", hWinGBitmap, bmpi );
162 /***********************************************************************
163 * WinGSetDIBColorTable (WING.1006)
165 * Set all or part of the color table for a WinG device context.
168 * hdc [I] WinG device context
169 * start [I] Start color
170 * num [I] Number of entries to set
171 * colors [I] Array of color data
174 * The number of entries set.
176 UINT16 WINAPI WinGSetDIBColorTable16(HDC16 hdc, UINT16 start, UINT16 num, RGBQUAD *colors)
178 TRACE("(%d,%d,%d,%p)\n", hdc, start, num, colors);
179 return SetDIBColorTable( HDC_32(hdc), start, num, colors );
182 /***********************************************************************
183 * WinGGetDIBColorTable (WING.1005)
185 * Get all or part of the color table for a WinG device context.
188 * hdc [I] WinG device context
189 * start [I] Start color
190 * num [I] Number of entries to set
191 * colors [O] Destination for the array of color data
194 * The number of entries retrieved.
196 UINT16 WINAPI WinGGetDIBColorTable16(HDC16 hdc, UINT16 start, UINT16 num, RGBQUAD *colors)
198 TRACE("(%d,%d,%d,%p)\n", hdc, start, num, colors);
199 return GetDIBColorTable( HDC_32(hdc), start, num, colors );
202 /***********************************************************************
203 * WinGCreateHalfTonePalette (WING.1007)
205 * Create a half tone palette.
211 * Success: A handle to the created palette.
212 * Failure: A NULL handle.
214 HPALETTE16 WINAPI WinGCreateHalfTonePalette16(void)
216 HDC hdc = CreateCompatibleDC(0);
217 HPALETTE16 ret = HPALETTE_16( CreateHalftonePalette( hdc ));
223 /***********************************************************************
224 * WinGCreateHalfToneBrush (WING.1008)
226 * Create a half tone brush for a WinG device context.
229 * winDC [I] WinG device context
231 * type [I] Desired dithering type.
234 * Success: A handle to the created brush.
235 * Failure: A NULL handle.
237 HBRUSH16 WINAPI WinGCreateHalfToneBrush16(HDC16 winDC, COLORREF col,
238 WING_DITHER_TYPE type)
240 TRACE("(%d,%d,%d)\n", winDC, col, type);
241 return HBRUSH_16( CreateSolidBrush( col ));
244 /***********************************************************************
245 * WinGStretchBlt (WING.1009)
249 BOOL16 WINAPI WinGStretchBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
250 INT16 widDest, INT16 heiDest,
251 HDC16 srcDC, INT16 xSrc, INT16 ySrc,
252 INT16 widSrc, INT16 heiSrc)
255 TRACE("(%d,%d,...)\n", destDC, srcDC);
256 SetStretchBltMode( HDC_32(destDC), COLORONCOLOR );
257 retval = StretchBlt( HDC_32(destDC), xDest, yDest, widDest, heiDest,
258 HDC_32(srcDC), xSrc, ySrc, widSrc, heiSrc, SRCCOPY );
259 SetStretchBltMode( HDC_32(destDC), BLACKONWHITE );
263 /***********************************************************************
264 * WinGBitBlt (WING.1010)
268 BOOL16 WINAPI WinGBitBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
269 INT16 widDest, INT16 heiDest, HDC16 srcDC,
270 INT16 xSrc, INT16 ySrc)
272 TRACE("(%d,%d,...)\n", destDC, srcDC);
273 return BitBlt( HDC_32(destDC), xDest, yDest, widDest, heiDest, HDC_32(srcDC), xSrc, ySrc, SRCCOPY );