4 * Copyright 1993 Alexandre Julliard
11 #include "wine/winbase16.h"
14 #include "debugtools.h"
15 #include "wine/winuser16.h"
17 DEFAULT_DEBUG_CHANNEL(bitmap);
19 BITMAP_DRIVER *BITMAP_Driver = NULL;
22 /***********************************************************************
23 * BITMAP_GetWidthBytes
25 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
28 INT BITMAP_GetWidthBytes( INT bmWidth, INT bpp )
33 return 2 * ((bmWidth+15) >> 4);
36 bmWidth *= 3; /* fall through */
38 return bmWidth + (bmWidth & 1);
48 return 2 * ((bmWidth+3) >> 2);
51 WARN("Unknown depth %d, please report.\n", bpp );
56 /***********************************************************************
57 * CreateUserBitmap (GDI.407)
59 HBITMAP16 WINAPI CreateUserBitmap16( INT16 width, INT16 height, UINT16 planes,
60 UINT16 bpp, LPCVOID bits )
62 return CreateBitmap16( width, height, planes, bpp, bits );
65 /***********************************************************************
66 * CreateUserDiscardableBitmap (GDI.409)
68 HBITMAP16 WINAPI CreateUserDiscardableBitmap16( WORD dummy,
69 INT16 width, INT16 height )
71 HDC hdc = CreateDCA( "DISPLAY", NULL, NULL, NULL );
72 HBITMAP16 ret = CreateCompatibleBitmap16( hdc, width, height );
78 /***********************************************************************
79 * CreateBitmap (GDI.48)
81 HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes,
82 UINT16 bpp, LPCVOID bits )
84 return CreateBitmap( width, height, planes, bpp, bits );
88 /******************************************************************************
89 * CreateBitmap [GDI32.@] Creates a bitmap with the specified info
92 * width [I] bitmap width
93 * height [I] bitmap height
94 * planes [I] Number of color planes
95 * bpp [I] Number of bits to identify a color
96 * bits [I] Pointer to array containing color data
99 * Success: Handle to bitmap
102 HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes,
103 UINT bpp, LPCVOID bits )
108 planes = (BYTE)planes;
112 /* Check parameters */
113 if (!height || !width) return 0;
115 FIXME("planes = %d\n", planes);
118 if (height < 0) height = -height;
119 if (width < 0) width = -width;
121 /* Create the BITMAPOBJ */
122 if (!(bmp = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC, &hbitmap ))) return 0;
124 TRACE("%dx%d, %d colors returning %08x\n", width, height,
125 1 << (planes*bpp), hbitmap);
129 bmp->bitmap.bmType = 0;
130 bmp->bitmap.bmWidth = width;
131 bmp->bitmap.bmHeight = height;
132 bmp->bitmap.bmPlanes = planes;
133 bmp->bitmap.bmBitsPixel = bpp;
134 bmp->bitmap.bmWidthBytes = BITMAP_GetWidthBytes( width, bpp );
135 bmp->bitmap.bmBits = NULL;
138 bmp->physBitmap = NULL;
140 bmp->segptr_bits = 0;
142 if (bits) /* Set bitmap bits */
143 SetBitmapBits( hbitmap, height * bmp->bitmap.bmWidthBytes,
145 GDI_ReleaseObj( hbitmap );
150 /***********************************************************************
151 * CreateCompatibleBitmap (GDI.51)
153 HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height)
155 return CreateCompatibleBitmap( hdc, width, height );
159 /******************************************************************************
160 * CreateCompatibleBitmap [GDI32.@] Creates a bitmap compatible with the DC
163 * hdc [I] Handle to device context
164 * width [I] Width of bitmap
165 * height [I] Height of bitmap
168 * Success: Handle to bitmap
171 HBITMAP WINAPI CreateCompatibleBitmap( HDC hdc, INT width, INT height)
176 TRACE("(%04x,%d,%d) = \n", hdc, width, height );
177 if (!(dc = DC_GetDCPtr( hdc ))) return 0;
178 if ((width >= 0x10000) || (height >= 0x10000)) {
179 FIXME("got bad width %d or height %d, please look for reason\n",
182 /* MS doc says if width or height is 0, return 1-by-1 pixel, monochrome bitmap */
183 if (!width || !height)
184 hbmpRet = CreateBitmap( 1, 1, 1, 1, NULL );
186 hbmpRet = CreateBitmap( width, height, 1, dc->bitsPerPixel, NULL );
187 if(dc->funcs->pCreateBitmap)
188 dc->funcs->pCreateBitmap( hbmpRet );
190 TRACE("\t\t%04x\n", hbmpRet);
196 /***********************************************************************
197 * CreateBitmapIndirect (GDI.49)
199 HBITMAP16 WINAPI CreateBitmapIndirect16( const BITMAP16 * bmp )
201 return CreateBitmap16( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
202 bmp->bmBitsPixel, MapSL( bmp->bmBits ) );
206 /******************************************************************************
207 * CreateBitmapIndirect [GDI32.@] Creates a bitmap with the specifies info
210 * Success: Handle to bitmap
213 HBITMAP WINAPI CreateBitmapIndirect(
214 const BITMAP * bmp) /* [in] Pointer to the bitmap data */
216 return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
217 bmp->bmBitsPixel, bmp->bmBits );
221 /***********************************************************************
222 * GetBitmapBits (GDI.74)
224 LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer )
226 return GetBitmapBits( hbitmap, count, buffer );
230 /***********************************************************************
231 * GetBitmapBits [GDI32.@] Copies bitmap bits of bitmap to buffer
234 * Success: Number of bytes copied
237 LONG WINAPI GetBitmapBits(
238 HBITMAP hbitmap, /* [in] Handle to bitmap */
239 LONG count, /* [in] Number of bytes to copy */
240 LPVOID bits) /* [out] Pointer to buffer to receive bits */
242 BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
247 /* If the bits vector is null, the function should return the read size */
250 ret = bmp->bitmap.bmWidthBytes * bmp->bitmap.bmHeight;
255 WARN("(%ld): Negative number of bytes passed???\n", count );
259 /* Only get entire lines */
260 height = count / bmp->bitmap.bmWidthBytes;
261 if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
262 count = height * bmp->bitmap.bmWidthBytes;
265 WARN("Less than one entire line requested\n");
271 TRACE("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
272 hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
273 1 << bmp->bitmap.bmBitsPixel, height );
277 TRACE("Calling device specific BitmapBits\n");
278 if(bmp->funcs->pBitmapBits)
279 ret = bmp->funcs->pBitmapBits(hbitmap, bits, count, DDB_GET);
281 ERR("BitmapBits == NULL??\n");
287 if(!bmp->bitmap.bmBits) {
288 WARN("Bitmap is empty\n");
291 memcpy(bits, bmp->bitmap.bmBits, count);
297 GDI_ReleaseObj( hbitmap );
302 /***********************************************************************
303 * SetBitmapBits (GDI.106)
305 LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer )
307 return SetBitmapBits( hbitmap, count, buffer );
311 /******************************************************************************
312 * SetBitmapBits [GDI32.@] Sets bits of color data for a bitmap
315 * Success: Number of bytes used in setting the bitmap bits
318 LONG WINAPI SetBitmapBits(
319 HBITMAP hbitmap, /* [in] Handle to bitmap */
320 LONG count, /* [in] Number of bytes in bitmap array */
321 LPCVOID bits) /* [in] Address of array with bitmap bits */
323 BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
326 if ((!bmp) || (!bits))
330 WARN("(%ld): Negative number of bytes passed???\n", count );
334 /* Only get entire lines */
335 height = count / bmp->bitmap.bmWidthBytes;
336 if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
337 count = height * bmp->bitmap.bmWidthBytes;
339 TRACE("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
340 hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
341 1 << bmp->bitmap.bmBitsPixel, height );
345 TRACE("Calling device specific BitmapBits\n");
346 if(bmp->funcs->pBitmapBits)
347 ret = bmp->funcs->pBitmapBits(hbitmap, (void *) bits, count, DDB_SET);
349 ERR("BitmapBits == NULL??\n");
355 if(!bmp->bitmap.bmBits) /* Alloc enough for entire bitmap */
356 bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, count );
357 if(!bmp->bitmap.bmBits) {
358 WARN("Unable to allocate bit buffer\n");
361 memcpy(bmp->bitmap.bmBits, bits, count);
366 GDI_ReleaseObj( hbitmap );
370 /**********************************************************************
374 HBITMAP BITMAP_CopyBitmap(HBITMAP hbitmap)
376 BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
384 res = CreateBitmapIndirect(&bm);
387 char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes *
389 GetBitmapBits (hbitmap, bm.bmWidthBytes * bm.bmHeight, buf);
390 SetBitmapBits (res, bm.bmWidthBytes * bm.bmHeight, buf);
391 HeapFree( GetProcessHeap(), 0, buf );
394 GDI_ReleaseObj( hbitmap );
398 /***********************************************************************
399 * BITMAP_DeleteObject
401 BOOL BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bmp )
403 if (bmp->funcs && bmp->funcs->pDeleteObject)
404 bmp->funcs->pDeleteObject( hbitmap );
406 if( bmp->bitmap.bmBits )
407 HeapFree( GetProcessHeap(), 0, bmp->bitmap.bmBits );
409 DIB_DeleteDIBSection( bmp );
411 return GDI_FreeObject( hbitmap, bmp );
415 /***********************************************************************
418 INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer )
422 if ( count <= sizeof(BITMAP16) )
424 BITMAP *bmp32 = &bmp->dib->dsBm;
426 bmp16.bmType = bmp32->bmType;
427 bmp16.bmWidth = bmp32->bmWidth;
428 bmp16.bmHeight = bmp32->bmHeight;
429 bmp16.bmWidthBytes = bmp32->bmWidthBytes;
430 bmp16.bmPlanes = bmp32->bmPlanes;
431 bmp16.bmBitsPixel = bmp32->bmBitsPixel;
432 bmp16.bmBits = (SEGPTR)0;
433 memcpy( buffer, &bmp16, count );
438 FIXME("not implemented for DIBs: count %d\n", count);
445 bmp16.bmType = bmp->bitmap.bmType;
446 bmp16.bmWidth = bmp->bitmap.bmWidth;
447 bmp16.bmHeight = bmp->bitmap.bmHeight;
448 bmp16.bmWidthBytes = bmp->bitmap.bmWidthBytes;
449 bmp16.bmPlanes = bmp->bitmap.bmPlanes;
450 bmp16.bmBitsPixel = bmp->bitmap.bmBitsPixel;
451 bmp16.bmBits = (SEGPTR)0;
452 if (count > sizeof(bmp16)) count = sizeof(bmp16);
453 memcpy( buffer, &bmp16, count );
459 /***********************************************************************
462 INT BITMAP_GetObject( BITMAPOBJ * bmp, INT count, LPVOID buffer )
466 if (count < sizeof(DIBSECTION))
468 if (count > sizeof(BITMAP)) count = sizeof(BITMAP);
472 if (count > sizeof(DIBSECTION)) count = sizeof(DIBSECTION);
475 memcpy( buffer, bmp->dib, count );
480 if (count > sizeof(BITMAP)) count = sizeof(BITMAP);
481 memcpy( buffer, &bmp->bitmap, count );
487 /***********************************************************************
488 * CreateDiscardableBitmap (GDI.156)
490 HBITMAP16 WINAPI CreateDiscardableBitmap16( HDC16 hdc, INT16 width,
493 return CreateCompatibleBitmap16( hdc, width, height );
497 /******************************************************************************
498 * CreateDiscardableBitmap [GDI32.@] Creates a discardable bitmap
501 * Success: Handle to bitmap
504 HBITMAP WINAPI CreateDiscardableBitmap(
505 HDC hdc, /* [in] Handle to device context */
506 INT width, /* [in] Bitmap width */
507 INT height) /* [in] Bitmap height */
509 return CreateCompatibleBitmap( hdc, width, height );
513 /***********************************************************************
514 * GetBitmapDimensionEx (GDI.468)
517 * Can this call GetBitmapDimensionEx?
519 BOOL16 WINAPI GetBitmapDimensionEx16( HBITMAP16 hbitmap, LPSIZE16 size )
521 BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
522 if (!bmp) return FALSE;
523 size->cx = bmp->size.cx;
524 size->cy = bmp->size.cy;
525 GDI_ReleaseObj( hbitmap );
530 /******************************************************************************
531 * GetBitmapDimensionEx [GDI32.@] Retrieves dimensions of a bitmap
537 BOOL WINAPI GetBitmapDimensionEx(
538 HBITMAP hbitmap, /* [in] Handle to bitmap */
539 LPSIZE size) /* [out] Address of struct receiving dimensions */
541 BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
542 if (!bmp) return FALSE;
544 GDI_ReleaseObj( hbitmap );
549 /***********************************************************************
550 * GetBitmapDimension (GDI.162)
552 DWORD WINAPI GetBitmapDimension16( HBITMAP16 hbitmap )
555 if (!GetBitmapDimensionEx16( hbitmap, &size )) return 0;
556 return MAKELONG( size.cx, size.cy );
560 /***********************************************************************
561 * SetBitmapDimensionEx (GDI.478)
563 BOOL16 WINAPI SetBitmapDimensionEx16( HBITMAP16 hbitmap, INT16 x, INT16 y,
566 BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
567 if (!bmp) return FALSE;
570 prevSize->cx = bmp->size.cx;
571 prevSize->cy = bmp->size.cy;
575 GDI_ReleaseObj( hbitmap );
580 /******************************************************************************
581 * SetBitmapDimensionEx [GDI32.@] Assignes dimensions to a bitmap
587 BOOL WINAPI SetBitmapDimensionEx(
588 HBITMAP hbitmap, /* [in] Handle to bitmap */
589 INT x, /* [in] Bitmap width */
590 INT y, /* [in] Bitmap height */
591 LPSIZE prevSize) /* [out] Address of structure for orig dims */
593 BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
594 if (!bmp) return FALSE;
595 if (prevSize) *prevSize = bmp->size;
598 GDI_ReleaseObj( hbitmap );
603 /***********************************************************************
604 * SetBitmapDimension (GDI.163)
606 DWORD WINAPI SetBitmapDimension16( HBITMAP16 hbitmap, INT16 x, INT16 y )
609 if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0;
610 return MAKELONG( size.cx, size.cy );